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1. The process of passing iron The crusher is a common equipment used in mining, construction and other industries. It can perform coarse and medium crushing of stone. During the production process, iron impurities often appear. At this time, it is necessary to pass the iron through the crusher to ensure the normal operation of the equipment and the quality of the products produced. The principle of passing iron is to filter raw stone through magnetic separator or ironware and other equipment to filter out iron impurities, so that the iron content in the stone is reduced to a very low level to ensure the normal progress of subsequent processes. 2. Possible problems and solutions during the process During the process of passing iron, some problems will also occur, such as a failure of the magnetic separator causing the iron to fail to pass, too much iron causing the magnetic separator to be unable to handle it, etc. These problems will affect the filtration effect of iron, thereby affecting the working efficiency of the entire production line. So, we can take the following measures to solve these problems: 1. Perform regular maintenance on the equipment and replace faulty parts in a timely manner to ensure the normal operation of the equipment; 2. Adjust the strength of the magnetic separator to make it more suitable for the current iron content; 3. Pretreat the stone to reduce the iron content as much as possible and reduce the difficulty of passing iron. 3. The importance of crusher passing iron Crusher passing iron can not only ensure the normal operation of the equipment and the quality of the products, but also reduce the failure rate of the entire production line and reduce equipment maintenance costs. The iron-treated stone has lower iron content and is more suitable for subsequent production processes, which can improve production efficiency and reduce production costs. In short, the iron passing of the crusher plays an important role in ensuring the normal operation of the equipment and improving production efficiency. In actual operations, we should adopt different iron passing methods according to different situations and perform appropriate maintenance on the equipment to ensure the operating efficiency and product quality of the entire production line.

Inspections that need to be carried out before starting the crusher include the following aspects: Lubrication check. Confirm whether the lubrication system is normal, including checking the lubricating oil level and oil quality, and ensuring that the oil circuit is smooth. Electrical system inspection. Check whether cables, plugs, and power connections are secure, and make sure electrical circuits are in good condition. Inspection of equipment structural parts. Check the structural parts of the crusher, such as jaw plates, bearings, connecting rods, thrust plates, tie rod springs, pulleys and V-belts, etc., to confirm their integrity and tightness. Security inspection. Ensure that the safety protection facilities around the equipment, such as safety guardrails, safety doors, emergency stop buttons, etc., are complete and effective. Crushing chamber and internal inspection. Check whether there are foreign objects or material accumulation in the crushing cavity, and whether the crushing blades, hammer heads, etc. are damaged or need to be replaced. Hydraulic oil inspection. For crushers using hydraulic systems, check the hydraulic oil quantity and oil quality to ensure that the hydraulic system is normal. Machine wear inspection. Check the wear of key components, such as blades, steel balls or other consumable parts. Accessory installation inspection. Check whether the accessories are installed tightly and securely, such as the tension of the belt, the lubrication operating status of the bearings, etc. Operation control room inspection. Check the sensitivity and reliability of the control mechanism and buttons, as well as the working status of the industrial computer and monitor. Computer room environment inspection. Check the fluid level of the hydraulic power unit, lubricating oil tank, and the cleanliness of the air filter. Auxiliary equipment inspection. Check whether auxiliary equipment such as feeders, belt conveyors, and lubrication stations are in good condition. Equipment running status check. Before starting up, make sure there is no one around the equipment and it is running without load to prevent accidents. When performing the above inspections, special attention should be paid to the vulnerable parts and key fasteners of the equipment to ensure that the equipment is in safe and good working condition.

The process flow of the crusher can be roughly divided into the following steps: Feed. Materials are sent to the feed port of the crusher through a feeder or conveyor belt. broken. The material is broken into smaller particles through the impact and friction of the hammer or blade inside the crusher. In this step, the appropriate crushing method and formula can be selected according to the hardness and size of the material, such as impact crushing or pressure crushing. Sieve. The crushed materials are screened through the screen. Appropriate screen specifications and screening time can be selected according to the requirements of the materials. Particles larger than the sieve openings need to be re-crushed, while particles smaller than the sieve openings are separated. Discharge. The screened particles are discharged through the discharge port. In addition, the production process of the crusher also includes material preparation, welding, processing, painting and other links. During the production process, regular inspection and maintenance of the equipment is also required, including removing debris in the screening machine, cleaning the screen, checking the feeding amount, crusher wear, etc., to ensure the normal operation of the equipment and extend its service life.

The vertical shaft impact crusher is a fine crushing equipment, suitable for crushing and shaping soft, medium-hard and extremely hard materials. It has higher output and efficiency than other types of crushers. Compared with the previous hammer crusher and roller crusher Such equipment has the characteristics of high sand production rate and good grain shape of finished products. Working principle: When the vertical shaft impact crusher works, the materials are sent from the top center feeding barrel to the rotor center, transported to each discharge chamber by the material distribution pile, and directly enter the high-speed rotating impeller. Under the action of centrifugal force, they are crushed with other materials. A part of the material shunted around the impeller in the form of an umbrella is impacted. The material is broken due to repeated eddy current impact and friction between the impeller and the casing, forming a closed-circuit crushing cycle. Finally, the material reaches the required level through screening control. Required finished material particle size. Advantages: The optimized crushing cavity can increase the material throughput by 30%, and the equipment has both the functions of sand making and shaping; the modular design of thin oil type and grease type allows users to choose the lubrication method according to the actual situation to achieve Overall interchangeability, easy to operate; optional center or peripheral feeding methods, flexible adjustment, can avoid long adjustment time in practical applications, improve work efficiency; perimeter protection can be flipped up and down, extending the service life of the combined throw The head only needs to replace worn parts, which can reduce the use cost by 30%; the air flow in the vortex chamber is self-circulating, coupled with a pulse dust collector and a noise eliminator, to achieve green and environmentally friendly sand making. Disadvantages: When the moisture content in the material is large, it is easy to adhere to the crushing cavity, which can easily cause blockage during the discharging and conveying process, resulting in a decrease in sand making capacity; due to the impact crushing principle, its striking parts, such as Blow hammers, throwing heads, peripheral protection plates, lining plates, etc. wear out quickly during use, which will increase the frequency and cost of replacement of accessories.

Cone Crusher: Laminated Crushing Type Cone crusher is a secondary crushing machine only suitable for medium or fine crushing operations. It has strong crushing capacity and high material utilization rate. It has a good effect on crushing various ores with hard and medium hardness and above. It is divided into five types. : Spring cone, composite cone, full hydraulic, multi-cylinder hydraulic and single-cylinder hydraulic, can be used with jaw crusher to form a crushing production line for producing sand and gravel. Its feed particle size can reach 500㎜, and the output is around 12-2000t/h. Working principle: It adopts laminated crushing. The rotation of the motor passes through the pulley or coupling, the cone crusher transmission shaft and the cone part of the cone crusher, and is forced by the eccentric sleeve to make a swing motion around a fixed point; thus the cone crusher is crushed. The wall sometimes approaches and sometimes leaves the surface of the mortar wall fixed on the adjusting sleeve, so that the ore is continuously impacted, squeezed and bent in the crushing cavity to achieve the crushing of the ore. Advantages: Suitable for crushing flake materials with uniform particle size; the cone crusher uses hydraulic devices and high-manganese steel wearing parts, which has the advantages of strong pressure resistance, large crushing force, and easy maintenance; the unique hydraulic device can clean the cavity and The function of the protection equipment is to realize automatic discharge and adjust the size of the discharge opening. When foreign matter enters, the cavity clearing function can be started to discharge the foreign matter, resulting in smooth production, safety and convenience. The equipment has a high degree of automation, high production efficiency, and unit power. It consumes less, works more smoothly and consumes less energy. Disadvantages: complex structure, high cost, difficult maintenance, and high body, which increases the construction costs of factories and basic structures; it is not suitable for crushing wet and sticky ores, nor is it suitable for processing soft ores, and is prone to excessive stone powder. , and the overall cost of the cone crusher is relatively high. Operation suggestions: The uniformity of discharge particle size in medium and fine crushing operations is generally higher than that in coarse crushing operations. Therefore, a parallel zone must be set up at the lower part of the crushing cavity. At the same time, the rotation speed of the crushing cone must be accelerated so that the material can The parallel zone is squeezed more than once; the crushing of medium and fine crushing operations is larger than that of coarse crushing operations, so the loose volume after crushing will increase greatly. In order to prevent the crushing cavity from being blocked due to this, it is necessary to increase the discharge capacity without increasing the discharge volume. On the premise of ensuring the required discharge particle size, the total discharge section must be increased by increasing the diameter of the lower part of the crushing cone; the discharge opening of the cone crusher is small, and non-crushed materials mixed into the feed It is more likely to cause accidents, and because the medium and fine crushing operations have strict requirements on the discharge particle size, the discharge port must be adjusted in time after the liner is worn, so the safety and adjustment device of the cone crusher is more necessary than the coarse crushing operation.

Jaw crusher: curved extrusion type Jaw crusher is often used in the primary crushing operations of stone crushing production lines and sand making production lines. The feed particle size can reach about 1500mm, and the output range is 1-1200t/h. Working principle: Jaw crusher is a crushing machine that uses the squeezing and bending effect of two jaw plates on materials to coarsely or mediumly crush materials of various hardnesses. Its crushing mechanism consists of a fixed jaw plate and a movable jaw plate. When the two jaw plates When the jaw plates are close to each other, the material will be crushed. When the two jaw plates move away, the material blocks smaller than the discharge opening will be discharged from the bottom. Its crushing action is intermittently carried out. Advantages: The V-shaped crushing cavity and the extrusion working principle make the jaw crusher have the characteristics of high crushing force and large crushing ratio; the flywheel design enhances the stability of the equipment, making the equipment run more smoothly; the crushing cavity is deep and has no dead space, and is disposable The processing capacity is large and the production capacity is strong; the entire structure of the jaw crusher is simple and compact, easy to install and maintain, and wearing parts such as lining plates are also wear-resistant and durable. Disadvantages: There is an idling stroke, which increases non-productive power consumption. The crushing method of the jaw crusher is actually relatively rough and requires high quality of the foundation. It is not suitable for crushing soft materials and materials with a moisture content greater than 10%, otherwise the jaw plate will easily Bo material will affect production efficiency and even cause blockage.

1. Read the instruction manual before operation   After purchasing crusher equipment, you should carefully read the relevant instructions for use of the crusher and become familiar with the use and maintenance of the crusher.   2. It is prohibited to use unqualified power supply   Use an unqualified power supply, do not place too many unbaked electrodes, move the electrodes as little as possible or do not move the motor when lowering the electrodes and after lowering the electrodes, and take various measures to prevent soft breakage of the electrodes. Once a soft break occurs, it must be dealt with immediately. 3. Control the oil volume of the crusher and the air pressure of the hydraulic tank   Pay attention to the air pressure of the fuel tank at all times. During work, the pressure of the pressure-type fuel tank must be maintained within the specified range. If the pressure is too low, it will be easily damaged and the oil pump will not absorb enough oil. If the pressure is too high, the low-pressure oil line of the hydraulic system of the crusher will burst.   4. It is prohibited to only use without maintaining   Maintenance is very important for the crusher. Long-term use will cause unnecessary wear and tear on the machine, so you should regularly check the wear and tear of the machine, perform regular maintenance, and apply lubricating oil regularly to make your machine play a greater role.   5. Conduct regular inspections   During operation, pay attention to the temperature of the bearings, keep the bearings well lubricated at all times, and pay attention to whether the sound and vibration are abnormal. If any abnormality is found, stop the machine and check whether it is covered with anything that is not easily broken.

1. History of crusher The crusher first appeared in the 19th century. It was originally a machine invented by the British for quarrying rocks and coal. It mainly sandwiched a stone between two iron rods and then operated it manually. This was also the prototype of the crusher. In the 1840s, the Germans invented the first hammer crusher, which was more efficient than early machinery. After that, the production and application of crushers gradually expanded. At the beginning of the 20th century, Americans invented the first cone crusher, which marked the beginning of the diversification of crushers. At present, crushers have been widely used in mining, construction, chemical industry, cement and other fields. 2. Classification of crushers 1. Hammer crusher The hammer crusher is the earliest crusher. Its working principle is to use the rotation of the hammer head and shaft to break large stones into small particles. Hammer crushers can be divided into single-stage and multi-stage. Single-stage hammer crushers are suitable for crushing harder materials, while multi-stage hammer crushers are suitable for crushing soft materials. 2. Jaw crusher The jaw crusher uses the pressure of the movable jaw plate and the fixed jaw plate to crush or break the material. Jaw crusher is suitable for crushing materials with higher hardness, such as limestone, etc. 3. Cone Crusher Cone crushers are divided into two types: compound cone crushers and hydraulic cone crushers. Hydraulic cone crusher is superior to compound cone crusher in all aspects of performance and efficiency, but the price is higher. 4.Impact crusher The impact crusher mainly uses the collision and friction between the high-speed rotating rotor and the high-speed moving materials to break the materials. Impact crusher is suitable for crushing medium hard materials, such as granite, basalt, etc. 3. Application scope of crusher Crusher has a wide range of applications and is mainly used in mining, construction, chemical industry, cement and other fields. In mines, crushers are mainly used for quarrying and coal mining to break large pieces of ore into small pieces; in the construction field, crushers are mainly used to produce bricks and sand for construction; in the chemical industry, crushers are mainly used In the production of chemicals such as fertilizers; in the cement field, crushers are mainly used to produce cement raw materials. 【Summarize】 Crusher has become an indispensable mechanical equipment in modern industrial production. With the continuous improvement of technological level, crushers are also constantly updated. When using a crusher, different types of crushers should be selected according to the hardness and crushing effect of the material to achieve the best crushing effect.

It is inevitable that any machine will malfunction during use. After the machine has been running for a period of time, it will experience varying degrees of wear and tear, leading to failure. Of course, crushers are no exception. Many users don’t know much about crushers and only know how to use them in regular operations. Once a problem occurs, I don’t know how to maintain it and solve it. So, what should you do when Broken Gold breaks down? First of all, we first make a preliminary diagnosis of the specific fault location, and then we can perform better maintenance. Let's learn together what should be done when the crusher fails? 1. The main machine of the crusher suddenly stops.   When the main machine of the crusher suddenly stops, it will cause the discharge port to be blocked and the cavity to be full of materials. If the V-belt that drives the rotating portion of the sheave is loose, it can cause the belt to slip. If the eccentric shaft is partially loose, there will be no clearance on both sides of the bearing seat, which will cause it to get stuck and prevent it from rotating. If the voltage in the working area is relatively low, the host will be unable to crush materials with large particles.   Solution: Clean the blockage at the discharge port so that the material can be discharged smoothly, tighten or replace the V-belt, replace the adapter sleeve, adjust the voltage at the work site, replace the bearings, etc. to solve these situations.   2. The tensioning spring is broken, the tie rod is broken, and the toggle plate falls off or breaks.   Solution: Replace the tensioning spring, replace the tie rod, and replace the toggle plate.   3. Broken toggle plate   There are materials that are larger than the size of the feed inlet of the main machine and non-crushed objects enter the crushing cavity. If the toggle plate and the toggle plate pad are not parallel, deflection will occur.   Solution:   Replace the crusher toggle plate and control the feed particle size to prevent the host from being overloaded.   Replace the toggle plate and take measures to prevent non-crushed objects from entering the crushing cavity.   If the voltage in the working area is relatively low, the host will be unable to crush materials with large particles.   Replace with qualified toggle plate.

Hammer crusher and jaw crusher are common mining equipment. Both have suitable occasions and characteristics. Which crusher to choose should be decided based on the actual situation, such as what kind of materials need to be crushed, discharge particle size requirements and other factors. , and in some cases, the two crushers can also be used in combination to achieve better crushing effects. Comparison between hammer crusher and jaw crusher: 1. Scope of application: Hammer crusher is suitable for crushing materials with higher hardness and larger particle size, such as limestone, gypsum, coal, basalt, etc. Hammer crusher has the characteristics of high efficiency, energy saving and environmental protection, and is widely used in construction, metallurgy, chemical industry, cement, ceramics and other industries. Jaw crusher is suitable for crushing materials with low hardness and small particle size, such as ore, coal, construction waste, etc. Jaw crusher has the characteristics of simple structure, easy maintenance and large crushing ratio. It is widely used in mining, metallurgy, construction, highway, railway and other industries. 2. Composition and working principle: The hammer crusher is mainly composed of a rotor, hammer head, impact plate, screen plate and transmission device. Its crushing principle is to use the high-speed rotation of the rotor and the repeated impact of the hammer head to break the materials into particles of the required size. When the material enters the crusher, it is crushed by the hammer head in various ways such as hitting, impacting, shearing and friction. Under the action of the impact force, the material undergoes multiple collisions and crushing, and is finally broken into the required particle size. , and discharged through the sieve plate. The jaw crusher is mainly composed of a frame, an eccentric shaft, a rotating part, a crushing chamber, a safety device, a discharge port adjustment device, etc. Its structure is relatively simple, and its operation and maintenance are relatively convenient. The crushing principle of the jaw crusher is to use the jaw The opening and closing movement of the plate crushes the material. The upper and lower jaw plates are connected through the eccentric shaft and the connecting rod mechanism. With the rotation of the eccentric shaft and the action of the connecting rod mechanism, the upper and lower jaw plates make periodic movements. When the lower jaw moves upward , clamp the material for crushing, and when the jaw moves downward, the crushed material is released. When the upper and lower jaws come closer, the material is compressed and squeezed. When the upper and lower jaws move away, the material is released, thus completing a crushing process. After multiple crushings, the material reaches the required crushing effect, and the crushed material is discharged through the discharge port. 3. Wearable parts: The wearing parts of hammer crusher are mainly hammer head, lining plate, impact plate, grate bar, etc. The wearing parts of jaw crusher are mainly fixed jaw plate, toggle plate and side guard plate. When using the crusher, the wear and tear of wearing parts should be checked regularly and replaced in time. 4. Discharge port adjustment method: The adjustment of the discharge opening of the hammer crusher is to make the crushing effect of the crusher more ideal and to ensure the safety performance of the crusher. The adjustment of the discharge opening of the hammer crusher usually controls the discharge particle size through gap adjustment. The following is Steps for adjusting the discharge port: Turn on the power and start the crusher to operate normally; Place a discharge hopper under the discharge port of the crusher, adjust the discharge port of the crusher to align with the center of the discharge hopper, and adjust the height of the discharge port so that it is the same height as the discharge hopper; Adjust the discharge opening by shortening or extending the adjusting rod until the required particle size and discharge opening size are reached; Check whether there are foreign objects or broken materials in the discharge port of the crusher, and clean them if necessary; Adjust the feed volume of the crusher to match the crushing capacity of the crusher to avoid overloading or underloading; Monitor the operating status of the crusher and promptly adjust the position and height of the discharge port to maintain its stability. Jaw crusher discharge opening adjustment refers to adjusting the size of the crusher's discharge opening to adapt to the crushing requirements of different materials. Adjusting the size of the discharge port can change the residence time and degree of crushing of materials in the crushing cavity, thereby affecting the output and crushing efficiency of the crusher. Usually, the discharge opening of the jaw crusher can be realized by adjusting the adjusting pad at the lower part of the crusher. The position of the adjusting pad can be adjusted manually or hydraulically. The European version of the jaw crusher is adjusted by the wedge. The position of the wedge is adjusted to control the up and down movement of the jaw plate, thereby adjusting the size and particle size of the discharge port. This adjustment method is relatively simple, highly flexible, and can Make real-time adjustments during production. It should be noted that when adjusting the discharge opening, it should be adjusted according to the crushing requirements of different materials to avoid affecting the crushing efficiency and output of the crusher due to the discharge opening being too large or too small.

In the cement production process, most raw materials need to be crushed, such as limestone, clay, iron ore and coal. Limestone is the largest raw material used in cement production. After mining, the particle size is larger and the hardness is higher. Therefore, the crushing of limestone plays an important role in the material crushing of cement plants. Crusher is commonly used in cement production lines and can be used in cement production.   1. Jaw crusher: There are many types of jaw crushers. Commonly used crushers on the market include single pendulum jaw crusher, compound pendulum jaw crusher, and hydraulic jaw crusher. The advantages of the jaw crusher are simple structure, easy maintenance, safe and reliable operation, and wide application range. Disadvantages are intermittent operation, free rotational stroke, increased unproductive power consumption and large component loads caused by high operating inertia. Therefore, jaw crushers have a higher quality requirement.   2. Hammer crusher: combines the advantages of hammer crusher. Its structural feature is that an adjustable jaw plate is added to discharge the groove in the crushing chamber, thereby achieving coarse and fine crushing. When there is a foreign object in the crushing chamber, the automatic device has a good protective effect.   3. Other types of crushers: In addition to the above two commonly used crushers, box crushers, impact crushers, roller crushers and vertical shaft crushers can also be used in cement production.

Performance characteristics of high lead bronze       With the development of large-scale machinery and equipment, the requirements for important parts have become more stringent. Bearings and bearing bushes are important wear-resistant parts of large-scale equipment such as metallurgy, electric power, and mining. During production work, they not only withstand greater pressure, impact loads, and alternating stresses, but also withstand friction, wear, higher temperatures, and a variety of The corrosive effect of the medium on it. Ordinary tin-based and lead-based Babbitt alloy and cast iron-based bearing materials can no longer meet the requirements. High-lead bronze alloy has excellent dry friction properties, high thermal conductivity, fatigue resistance and seizure resistance, and is currently widely used.       High lead bronze is a very versatile alloy material. However, because the melting points and specific gravity of copper and lead are very different, lead segregation is easily produced.       High-lead bronze has excellent qualities such as high fatigue strength, thermal conductivity and wear resistance, as well as no cracking under working conditions with impact loads.   High-lead bronze bearing bushes and copper-lead alloy bearing bushes mainly produced by the centrifugal casting method. Due to the high preheating temperature of the steel shell and the high temperature of alloy casting, a rapid cooling method must be used to prevent lead segregation during the casting process. Therefore, the back surface of the steel gets a "quenching effect", which increases the hardness and reduces the toughness. Not only will it bring difficulties to future cutting processes, but also due to the large internal stress of the bearing after casting, the shape and size of the bearing will change during the processing, and the accuracy will be affected to a certain extent. What's more serious is that the increase in hardness and decrease in toughness of the steel back caused by the "quenching effect" is one of the important reasons for the bearing to break or even chip during use.

Methods for adjusting the size of the crusher’s output mainly include:   Adjust the transmission ratio. The discharge particle size is adjusted by changing the speed ratio of the crusher. Increasing the transmission ratio will reduce the speed of the crusher, thereby reducing the degree of crushing. Decreasing the transmission ratio will do the opposite. Replace the screen teeth. The type of sieve teeth affects the particle size of the discharged material. Fine sieve teeth will make the discharged particles finer, while coarse sieve teeth will do the opposite. Adjust the inlet and outlet. Reasonably adjust the size of the inlet and outlet. If the inlet is too small or the outlet is too large, the discharge particles may be too large, and vice versa. Adjust impeller speed. According to the required discharge size, gradually increase or decrease the impeller speed, but be careful not to do it too fast to avoid damaging the machine. Adjust the feed amount. Increasing or decreasing the feeding amount is also a method to adjust the size of the discharging material, and excessive fluctuations in the feeding amount should be avoided. Adjust the crushing chamber. By adjusting the size of the crushing cavity, the residence time of materials in the machine is controlled, thereby affecting the size of the discharged materials. Replace crusher accessories. If the accessories of the crushing chamber are worn, the discharge size can be adjusted by replacing new accessories. Adjust the grinder tool distance. Control the discharge particle size by adjusting the machine interface width, but avoid excessive wear of the tool. Use appropriate sieves. Use screens with different mesh sizes to control the discharge particle size. Adjust the feed amount. Adjusting the feed rate of the crusher can also control the discharge particle size. Before making any adjustments, make sure the crusher is turned off and the impeller comes to a complete stop. Pay attention to safety during adjustments, especially when direct hand operation is involved.

To adjust the discharge thickness of the crusher, it can be mainly achieved by adjusting the roller gap spacing, pressure and rotation speed. The following is the specific adjustment method:   Adjust the roller gap distance: The gap between rollers refers to the distance between two pairs of rollers, which determines the thickness of the discharged material. Normally, the smaller the gap between rollers, the finer the material will be. The roll gap spacing can be changed by adjusting the adjusting bolts or levers on the machine. When adjusting, the appropriate roll gap spacing should be determined based on the required product particle size and raw material hardness. Adjust pressure:   The size of the pressure will also affect the thickness of the discharged material. Generally speaking, the greater the pressure, the finer the material will be. The pressure can be changed by adjusting the pressure valve in the hydraulic system. When adjusting, the appropriate pressure should be determined based on the hardness of the raw material and the working status of the crusher. Adjust the speed:   The speed of rotation will also affect the crushing effect. Generally speaking, the faster the rotation speed, the finer the output.   The speed can be changed by adjusting the speed control device in the motor or hydraulic system. When adjusting, the appropriate rotation speed should be determined based on the hardness of the raw material and the working status of the crusher. Precautions:   When adjusting, it should be gradually adjusted according to the actual situation and tested and verified. Equipment should also be inspected and maintained regularly to ensure its normal operation and stability. Regarding the hydraulic roller crusher, it should also be noted that the hydraulic type is relatively convenient to adjust the thickness. It only needs to adjust the hydraulic pressure once in the early stage, and this pressure can be automatically maintained in the later stage until the roller skin is worn out. The spring-type thickness adjustment requires manual adjustment when it is put into use, and is adjusted again according to the condition of the finished material after a period of use.

Choosing the right primary crushing equipment is critical when it comes to reducing rock or other materials to a size suitable for aggregate applications. The right equipment can improve production efficiency, reduce costs, and ultimately produce aggregates that meet the requirements of a specific application. This article will show you how to choose the right primary crushing equipment for your aggregate application. 1. Material characteristics   When selecting coarse crushing equipment, the first thing to consider is the type and characteristics of the raw materials to be processed. These properties may include hardness, abrasion, viscosity, moisture content, etc. For example, if the raw material is very hard, coarse crushing equipment with higher pressure needs to be used for crushing.   2. Production capacity   Production capacity is another factor to consider when selecting coarse crushing equipment. If large quantities of aggregate are required, equipment with high production capacity is required. Therefore, a comprehensive evaluation and comparison of the equipment's production capacity and work efficiency is required to ensure that the selected equipment can meet production requirements.   3. Application requirements   Choosing the right coarse crushing equipment also requires consideration of the final application requirements of the aggregate. For example, construction concrete requires the use of smaller aggregate sizes, while applications such as road paving require larger aggregate sizes. Additionally, certain applications may require a more uniform particle size distribution, which may also influence the decision to select coarse crushing equipment.   4. Granularity requirements   Another important factor in coarse crushing equipment is the particle size requirements. Different applications require different particle size requirements. For example, aggregates used in construction concrete usually require smaller particle sizes, while applications such as road paving require larger particle sizes. Therefore, appropriate equipment needs to be selected based on specific application requirements.   Granularity size is also affected by device settings. Different coarse crushing equipment has different settings, such as an adjustable discharge port, which can adjust the particle size as needed, which is also one of the factors that need to be considered when selecting equipment.   5. Cost-effectiveness   Finally, cost-effectiveness is also one of the factors to consider when choosing the right coarse crushing equipment. While some equipment may be more advanced and efficient than others, it will also cost more. Therefore, the right equipment needs to be selected based on specific needs and budget to achieve optimal cost-effectiveness. In short, when selecting coarse crushing equipment, multiple factors need to be considered, including the physical and chemical properties of the aggregate, production capacity requirements, equipment costs, maintenance and upkeep costs, etc. When choosing, you should make a comprehensive consideration based on actual needs and make a wise choice between various devices.   For aggregate producers, choosing the right coarse crushing equipment is very critical. There are many different types and specifications of equipment available on the market, but there are several factors to consider when choosing the right one. The physical and chemical properties of the aggregate are the first factors that must be considered when selecting equipment.   First, determine the hardness and degree of wear of the aggregate, as this will affect the efficiency and maintenance costs of the selected equipment. For harder aggregates, high-strength and wear-resistant equipment such as impact crushers need to be selected. For softer aggregates, more affordable equipment such as hammer crushers are available.   Secondly, the particle size and distribution of aggregates also need to be considered, as this will directly affect the selection and design of crushing equipment. For coarse-grained aggregates, you need to choose equipment with a larger feed opening and higher capacity; while for finer-grained aggregates, you need to choose equipment with better screening effects. In addition to the characteristics of the aggregate, production capacity is also an important factor in selecting crushing equipment. Manufacturers with high production capacity needs need to choose equipment with larger capacity, while small-scale manufacturers can choose equipment with smaller capacity to improve production efficiency and reduce costs.   In addition, equipment cost is also a factor that needs to be considered when selecting crushing equipment. The prices of different specifications and models of equipment vary greatly, so trade-offs and balances need to be made between production capacity and budget.   Finally, maintenance and upkeep costs are also one of the factors that need to be considered when choosing crushing equipment. Equipment maintenance and upkeep is an essential part of the equipment operation process, and the maintenance and upkeep costs required for different models and specifications of equipment are also different. Therefore, it is necessary to choose equipment that is easy to maintain and maintain to ensure long-term stable operation of the equipment.

Impact crusher crushing principle The impact force is used to break the material. When the material enters the crushing cavity, it will be broken into smaller particles by the impact of the high-speed rotation of the rotor and the impact of the impact plate. At the same time, the material will be repeatedly impacted and broken in the crushing cavity until it reaches the required crushing particle size. Finally, the crushed materials will be discharged from the discharge port to complete the entire crushing process. Specifically, the working process of the impact crusher can be divided into the following steps: Feeding: Materials enter the crusher through the feeding port and fall into the high-speed rotating rotor. Impact crushing: The material collides with the plate hammer on the rotor, resulting in crushing effect. At the same time, the rotor also throws the material to the impact plate, so that the material is impacted and broken again. Repeated crushing: The material is hit and crushed multiple times in the crushing cavity until it reaches the required crushing particle size. During this process, materials will also collide with each other, further increasing the crushing effect. Discharge: The crushed materials are discharged through the discharge port to complete the entire crushing process. It should be noted that the crushing effect of the impact crusher is related to factors such as the rotation speed of the rotor, the shape and number of plate hammers, and the angle of the impact plate. Therefore, when using an impact crusher, it is necessary to select appropriate operating parameters and structural forms based on specific material properties and production requirements.

The jaw crusher has a high crushing capacity. Special attention needs to be paid when installing the jaw crusher. Every part must be installed in place and accurately. This article will focus on the frame, connecting rod, lining plate, and movable jaw of the jaw crusher. , and gear 5 aspects to introduce the installation points of jaw crushing parts. 1. Installation points of jaw crusher frame When installing the rack, pay attention to placing shock-absorbing items between the rack and the concrete, such as hardwood, rubber, etc. The rack should be installed in strict accordance with the installation requirements of the equipment, and the horizontal and vertical levels placed on the foundation should be the same. Less than 0.2mm. 2. Installation points of connecting rod of jaw crusher When installing the connecting rod of the crusher, first check the position of the connecting rod and the required assembly. Only after the inspection is correct can the connecting rod be lifted. You can use kerosene or gasoline to clean the connecting rod. After cleaning, you can apply lubricating oil on the surface of the connecting rod to ensure installation. Smooth. Then install the bearings, spindle and upper housing of the connecting rod in sequence, lift the connecting rod and tighten the connecting rod bolts. 3. Installation points of toggle plate of jaw crusher Loosen the spring nut of the tie rod, remove the spring, and tie it to the movable jaw with a wire rope or chain. Pull the wire rope to make the movable jaw approach the fixed jaw, thereby loosening the liner. When installing the liner, repeat the above steps in the opposite direction. That`s it. 4. Installation points of mobile jaw of jaw crusher First, after assembling the movable jaw, movable jaw shaft, rib pad, movable tooth plate and other parts on the ground, use a crane to place the assembled parts together into the crusher frame. For the sliding bearing, grind the sliding bearing and put it into the frame bearing. Within the allowable range, apply lubricating oil on the bearing surface and put the movable jaw into the bearing. At the same time, ensure that the inclination of the sliding bearing is within 0.2 mm, the coaxiality is within 0.06mm, and the assembly of the movable jaw is completed. 5. Installation of tooth plate of jaw crusher The gears of the jaw crusher act directly on the material. Due to long-term contact with the ore, the wear of the gears is the most serious and needs to be replaced frequently. When installing the gear, you need to use a tooth plate and use wedges or bolts to fix it on the front wall of the frame or the movable jaw to keep the contact surface straight. Use soft metal between the back of the fixed jaw gear and the front wall of the frame to This ensures a tight fit between the two.

Cone crusher can be widely used in metallurgical industry, construction industry, road construction industry, chemical industry and phosphate industry. It is suitable for crushing hard and medium-hard ores and rocks, such as iron ore, copper ore, limestone, quartz, granite, Sandstone etc. The installation process of the cone crusher is as follows: 1. The quantity of parts must be counted before installation. Check and remove the damage caused to the machined surfaces and threads of each part during loading, unloading and transportation, and remove the protective coating applied on the machined surfaces during packaging as well as the dust and dirt that fell during transportation. 2. During installation, apply dry oil on the fixed contact surface and thin oil on the movable surface. 3. The crusher must be installed on a stable reinforced concrete foundation. The depth of the foundation can be determined by the user based on local geological conditions. 4. In order to avoid the accumulation of crushed ore, there must be enough space under the foundation to install transportation equipment. 5. In order to prevent the foundation from being damaged, the upper part of the foundation must be covered with a protective plate, which must be prepared by the user. 6. Installation of rack (1) Strict verticality and horizontality should be maintained when installing the rack. You can use a level and a hanging weight on the annular processing surface of the base to check the centerline of the base. (2) After adjusting the level of the base with the adjusting wedge iron, tighten the anchor screws and perform the second propeller filling. (3) When the secondary impeller layer hardens, take out the adjusting wedge iron from under the base of the crusher, fill the gap with cement, and then install the frame. 7. Installation of drive shaft (1) When installing the cone crusher drive shaft, an adjusting gasket should be placed between the base and the flange flange of the drive shaft frame. (2) After the transmission shaft is installed, use a template to check the dimensions related to the transmission gear. (3) The axial movement of the transmission gear should be 0.4-0.6mm (that is, the gap between both ends of B). (4) When disassembling the drive shaft, you can use the drive shaft frame flange.

Mechanical equipment has a life span, but this life span is also affected by large human factors and has some impact on the environment. The same is true for crushers. No matter in the daily work process, we must pay attention to timely maintenance. , take good care of it. There are more and more crusher models on the market now, but the basic principles are the same, and the faults that occur are basically the same. Here is an analysis of the faults that are prone to occur in crushers in daily life. The common failures and solutions of crushers in daily life are as follows: 1. The main bearing temperature is too high. It may be that there is insufficient grease, then you need to add an appropriate amount of grease; if the grease is contaminated, then you need to clean the bearing and replace the grease; if the bearing is damaged, then you need to replace the bearing. 2. The discharge size is too large. It may be that the crushing teeth are worn excessively, so the crushing teeth need to be replaced or surfacing welded; if the side teeth are worn or fallen off, replace them. 3. The vibration of the crusher increases. The bearing may be damaged, replace it; the gear coupling may be damaged, replace it; 4. Reduced processing capacity or insufficient power. If the hydraulic coupler leaks, then add a certain amount of No. 22 turbine oil or No. 6 hydraulic transmission oil. If the coupler is broken, it needs to be replaced with a new one; if the feed is uneven, then adjust the feed. 5. Cannot reverse automatically. If the sensor is installed incorrectly or is damaged, adjust or replace the sensor; if the sensor lead or wiring is loose, connect the lead or tighten the wiring. 6. The sensor protection system fails. If the proximity switch is damaged or the wiring in the electrical control cabinet is loose, you need to replace the switch or connect the wiring according to the wiring diagram. In order to keep the crusher in good working condition, reduce the incidence of failures, improve work efficiency, and extend service life, we need to do daily maintenance of the crusher. It is important to pay attention to the lubrication and bearing maintenance of the crusher equipment, and prevent Crusher "on strike".

New jaw crushers are widely used in coal mines, high-hardness ores, metallurgy, chemicals, transportation and road construction and other industries. Jaw crushers can crush materials such as gypsum, dolomite, limestone, quartz, shale, coal gangue and fly ash. good effect. It integrates roller crusher and hammer crusher. The crushing function is divided into coarse crushing and fine crushing. The crushing process meets the requirements of more powder and less grinding. The characteristics of the equipment are energy saving, environmental protection and efficient crushing. It is very popular in the current market. Jaw crusher loading and delivery site Mining machinery involves jaw crushers, cone crushers, sand making machines, mobile crushers, vibrating screens, separators, mineral processing equipment, grinding equipment, crushing screen production line equipment, etc. Its technical level determines the operating level of production equipment in chemical, coal, electric power, metallurgy, shipping, transportation, mining and other industries. Crusher selection is very important, as it is directly related to the overall development of an industry. The jaw crusher has a simple and reasonable structure, low operating costs, and the crushing principle is stone on stone. It stands out in the domestic and foreign markets for its high efficiency, energy saving, and environmental protection, and occupies an important position in mining crushing equipment. 1. A wide range of materials are involved in crushing. Any kind of ore can be crushed, as can ordinary iron ore, shale, limestone, granite and other ores. 2. Easy to operate. According to the different needs of customers, different crushing chambers can be selected to solve problems in ore grinding, workplace size and many other problems. 3. Fast and efficient. The jaw crusher has the advantages of reasonable blow hammer structure, rapid dispatch, and multiple position changes, which can shorten the time of replacing the blow hammer. 4. High wear resistance and long service life. High-toughness alloy materials and new manufacturing processes solve the crushing problem of hard materials and extend the service life of the blow hammer. 5. Low energy consumption. The optimized design of the jaw crusher, a multi-cavity impact crusher, has the production capacity of low energy consumption and high crushing ratio.