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what are the maintenance checks of a stone crushing equipment

crusher maintenance - news - hysan road & bridge mechanical technology co.,ltd

crusher maintenance - news - hysan road & bridge mechanical technology co.,ltd

As the core equipment for ore production, the crusher can reduce the wear and tear of the machine, prolong the service life of the equipment and convert the economic benefits more efficiently during daily use. Please pay attention to the following daily maintenance and maintenance of the crusher:

When any stone crushing equipment is turned on and off, you should pay attention to the regular shutdown device to check the internal wear of the machine. During the inspection of the crusher, it is necessary to wait for the machine to completely stop running before it can be overhauled, thus avoiding a series of dangers. When repairing the machine, be sure to check the wearing parts. After the wearing parts reach the maximum wear level, they must be replaced in time.

The conveyor belt is indispensable in the stone production line, and the machine is driven by the conveyor belt. Regularly adjust the tightness of the conveyor belt to ensure that the belt is evenly stressed. Bearings wear more in use, often refueling to increase the service life of the bearing, adding 50-70% of the total bearing. Under normal conditions, the bearing temperature rise should not exceed 35 C, the maximum temperature rise does not exceed 70 C. For maintenance of moving bearings, generally only the cleaning and oil change are arranged, and it is not necessary to replace the bearings. The usual method is to pull the bearing and the eccentric shaft out of the bearing cavity.

Always pay attention to the lubrication work of the friction surface in time to ensure the normal operation of the machine and prolong the service life. The grease used should be determined according to the location of use, temperature and other conditions. The grease added to the bearing housing is 50-70% of its volume and must be replaced every three months; it must be used for new oil.

tips for crusher maintenance

tips for crusher maintenance

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Crushers are used in the mining industry, construction, and other sectors to break large rocks down into smaller, more manageable pieces. There is a wide range of crushers available that employ different physical methods to achieve this goal. Below, well look at the various types of crushers offered and explore the best methods for keeping your crusher machinery in top condition.

A jaw crusher applies pressure to material with a movable lever against an immovable wall. The force exerted in the crushing chamber is generated and maintained by a flywheel moving the swing jaw, while the stationary jaw provides the resistance. Between the two surfaces, heavy materials such as stone and ore are broken into smaller pieces.

Often used as a secondary crusher to a jaw crusher especially in mining, quarrying, or other applications where stone and rock need to be reduced to finer grades gyratory crushers employ a circular movement to crush materials. Gyratory crushers use manganese steel surfaces, which are harder than stone, making them suitable for breaking down hard materials. The pieces continue to be crushed via the rotational movement of these opposing surfaces (usually one semi-static, and the other in full rotation) until the pieces are small enough to fall through the crushing chamber and into a collection bin.

Cone crushers use a rotating spindle with a hard encasement mantel to break down materials between the hardened surface and concave bowl. As materials fall through this compression area into a secondary area, the material is crushed again. This process continues until the material being crushed reaches the designated size and falls into the collection pile.

Commonly associated with the agricultural industry, grinding mills are a type of crusher that creates a compression chamber which crushes, grinds, and cuts material. Grinding mills are typically used for softer materials. Stone wheels grind grain or other items into a fine powder through weight and the abrasiveness of the grinding surface. Different texturing and channeling can allow for different levels of grit to be created, as well as increasing or decreasing resistance. Through constant rotation of the aggregate and the friction it creates, materials may be broken down to a very fine level.

Regular maintenance is critical when it comes to the safe and effective operation of any milling or crushing machine. These machines endure enormous amounts of stress for extremely long periods of time, relentlessly crushing incredibly hard materials down to usable levels. As material is reduced, it also creates significant dust and debris, which can also affect performance and create premature wear.

Given the high-impact stresses experienced by crushing equipment, even slight damage can compound quickly. Keeping up with your crusher maintenance schedule is crucial to keeping your equipment running and avoiding unexpected downtime.

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crusher routine maintenance inspection

crusher routine maintenance inspection

Our corporation is a manufacturer and exporter of your crushers, serving the crushing aggregate market for 20 years. Stone Crushers is definitely an perfect device for major and secondary crushing are extensively applied in hydroelectricity, highway, mining, transportation, energy, metallurgical, construction, road creating, chemical and phosphatic industry.

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Jaw crusher operation and maintenance and repair-English 2010-3-3 In order to ensure the normal jaw crusher to work at proper operation, the need for planned maintenance, including routine maintenance checks, minor repairs, the ...

For more than 30 years, Midsouth Machine & Service has provided industry leading rebuild and repair services for mining and aggregate production equipment for nearly every make, model and type across America.

2020/06/02 Maintenance of jaw crusher In order to ensure the normal operation and proper operation of the jaw crusher, scheduled maintenance must be carried out, including routine maintenance inspection, minor repair, medium repair and major repair.

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2020/07/07 Routine maintenance Points 1: Check the wear pattern of the internal parts of the machine regularly such as impeller and jaw plate. When replacing, user should pay attention to the weight, model and size of the parts, and replace them according to the original part parameters.

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2020/06/02 Maintenance of jaw crusher In order to ensure the normal operation and proper operation of the jaw crusher, scheduled maintenance must be carried out, including routine maintenance inspection, minor repair, medium repair and major repair.

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choosing the right rock crushing equipment

choosing the right rock crushing equipment

Stone crushing can be classified into four stages depending on the degree to which the starting material is fragmented. These four stages are primary, secondary, tertiary and quaternary stages. Primary and secondary stages involve crushing of coarse materials while the tertiary and quaternary stages involve the reduction of ore particles to finer degrees. Activities at the primary stage will depend on gyratory, jaw or impact crushers. Cone crushers, roll crushers and impact crushers are mostly used at the secondary stages. The tertiary and quaternary stages mostly require the utilization of cone crushers, although some functions may require vertical-shift impact crusher. In order to control the size and quality of the product and at the same time reduce wastage, you must ensure that the reduction of aggregates is evenly spread over the four stages.

A gyratory crusher consists of a concave surface and a conical head constructed from heavy steel casting. It works by using a mantle that gyrates within a concave bowl. This rock crushing equipment uses compressive force to fracture the rock and this happens when the mantle makes contact with the bowl during gyration. Gyratory crushers are often built into a cavity in the ground and are mostly used to crush rocks that have high compressive strength.

A jaw crusher also uses compressive force and the materials are allowed into a gap at the top of the equipment between two jaws. One of the jaws is fixed while the other reciprocates by moving back and forth relative to the stationary one. The gap between the two jaws is known as the crushing chamber. The moving jaw exerts a compressive force against the stone in the chamber causing it to fracture and reduce. The rock remains in the jaws until is small enough to move down the chamber to the opening at the bottom. Jaw crushers can work on a range of stone from the softer ones like limestone to harder basalt or granite.

A cone crusher is similar to a gyratory crusher because it operates using a mantle that rotates within a bowl, but it has less steepness in the crushing chamber. It has a short spindle which is supported by a curved universal bearing located beneath the cone. They use compression force to break the rock between the gyrating spindle and the enclosing bowl liner. The rock becomes wedged and squeezed as it enters the top of this rock crushing equipment. The cone crusher breaks large pieces of ore once into smaller particles that fall to a lower position where they are broken again. The pieces are continually crushed until they are small enough to move through the narrow opening at the bottom of the crusher.

Roll crushers are a compression-type reduction crusher with two drums rotating about a shaft. The gap between the drums is adjustable. The particles are drawn into the crushing chamber by the rotating motions of the rolls and a friction angle is formed between the particles and the rolls. The stone fractures from the compression forces presented by the rolls as they rotate. The crushed particles are then forced between the rotating surfaces into the smaller gap area. Roll crushers are mostly used in smaller scale production to crush ores that are not too abrasive. This type of rock crushing equipment gives a very fine product size distribution with very little dust production.

Impact crushers do not use force to crush materials, instead, they use impact. The material is contained within a cage that has openings on the bottom or side to allow for the crushed materials to escape. Impact crushers can be classified into two categories: vertical shaft impact crushers (VSI) and horizontal shaft impact crushers (HSI).

VSI crushers use high-speed rotors with wear resistant tips that catch and throw the feed stone against anvils lining the crushing chamber. Rock is fractured along its natural fissures when its thrown against the anvils to produce materials with consistent cubical shapes.

The HSI crusher has a shaft that runs on a level plane through the crushing chamber. It works by impacting the rock with hammers that are fixed on a spinning rotor. It also works on the principle of throwing the stone to break the rock. Horizontal shaft impact crushers can be primary or secondary. They are better suited for softer, less abrasive stone in the primary stage and more abrasive and harder stone in the secondary stage.

stone crusher's belt model and maintenance skills-sbm industrial technology group

stone crusher's belt model and maintenance skills-sbm industrial technology group

The stone crusher can be used for crushing work in all walks of life, and it is superior in function range to other crushing equipment. However, when the stone crusher breaks some soft materials like clothing, wood, plastic film and many electronic integrated boards, etc., the stone crusher belt runs because the stone crusher belt type is wrong or the equipment is aging or other problems. There will be slippage problems in the process, so how to deal with the slippage problem of the stone crusher belt?

When the stone crusher conveyor belt slips, check if the load on the stone crusher belt is exceeded. If the load of the stone crusher belt is too large and exceeds the compliance of the motor, slippage will occur. Although the slip at this time is a protective measure for the motor, it is necessary to adjust the feeding amount in time to control the stone crusher conveyor belt within a very large load to avoid the occurrence of material slip.

The stone crusher belt starts too fast and is also prone to slippage. In response to this situation, the speed of the equipment startup can be re-adjusted according to the different crusher belt models and the hardness of the processed materials, and the speed can be quickly adjusted to medium or slow speed, which can effectively slip the customer. In addition, it is necessary to eliminate the slippage caused by insufficient friction between the drive roller and the conveyor belt of the stone crusher. This requires that the belt of the stone crusher should not be wet or who can use the blower to blow the rosin on the drum.

Different crusher belt models have different tensions, so the selection of the stone crusher belt must be in accordance with the model selection of the equipment. In addition, it is necessary to check the tension of the conveyor belt of the stone crusher. If the tension of the conveyor belt leaving the drum is not enough, it is prone to slippage. In order to solve this problem, the customer should timely correct the tensioning device on the belt of the stone crusher. Increase the initial tension of the belt. If the tail roller bearing is damaged or the upper and lower roller bearings are damaged seriously, the belt slippage will also occur if there is no timely repair or replacement of the inflexible parts.

For the slippage problem of materials and belt conveyors, the new "human" shaped gravel belt can effectively increase the friction, and the problem of material and belt slip can be solved perfectly. The engineer also optimized the stone crusher belt conveyor structure and standardized production for easy operation and maintenance. However, it is important to remember that the choice of the type of crusher belt must match the model of the equipment.

crushing plant installation, operation and maintain - jxsc mine

crushing plant installation, operation and maintain - jxsc mine

An efficient, energy-saving and environmental protection crushing plant not only depends on the high-quality stone crusher machine, but also depends on the good connection and cooperation among various equipment. If you want the crushing equipment of crushing plant to keep high-efficient steady working, the daily maintenance and repair work must do well. How to set up a good rock crusher plant?

1. Setting up markers to control the thickness of the paving, such as horizontal standard or raised stakes, or bouncing horizontal elevations or nailing horizontal elevations onto fixed building walls, grooves, and ditch slopes.

2. When the groundwater level is higher than the bottom of the foundation trench, the measures of drainage or lowering the groundwater level should be taken to keep the foundation trench without water.

3. Before proving, the relevant units should be organized to jointly check the groove, including the axis size, horizontal elevation, geological conditions. If you discover holes, ditches, wells and so on, you should dispose well before building the foundation.

3. After the jaw crusher is running normally, the vibrating feeder can be started. And alter the feed quantity by adjusting the feeding belt according to the size of the material block and the operation of the jaw crusher. In general, the height of material accumulation in the crushing chamber should exceed 2 / 3 of the crushing chamber height. The diameter of the block should not exceed 50%-60% of the width of the inlet. At this time the production capacity of jaw crusher is high. It will cause blocking if the material bigger, then affect normal production.

4. To prevent metal objects (such as shovel teeth, track plate, drill, etc.) into the crusher machine to avoid damage to the machine. You should inform the next post operators immediately, and take out in time to prevent accidents from entering the secondary crusher system.

The higher usage frequency machine is crushing equipment in the crusher production plant. To ensure higher production efficiency and longer service life, plant manufacturers must do a good job of maintenance.

2. Daily maintenance In order to ensure that the crushing equipment is in good technical condition, to reduce the downtime of failures, and to improve the intact rate and utilization rate. It is necessary to carry out regular maintenance or even compulsory maintenance, and correctly handle the relationship between maintenance and repair. Its not allowed to just use it or just use it.

3. Lubrication and maintenance Regular attention and timely lubrication of the friction surface can ensure the normal operation of the crushing equipment. The Grease added to the bearing housing is 50-70% of the volume and must be replaced every three months. Such as it needs to use gasoline or kerosene to clean the bearing roller runway when oil change.

4. Maintenance during the run-in period of the plant It is very important that the connection and cooperation of a stone crusher plant equipment. When the users purchase the crushing plant equipment and put it into normal use. They need a long running-in period. For example, if the feeding and conveying links cannot be synchronized, it is easy to block, or the radiation range is too wide to affect the efficiency of the production line. Also some damage to the equipment.

However, in order to meet the deadline, most users ignore some small parts that should be paid attention to during the running-in period. Or make the machine overwork for a long time, which leads to frequent failures in the early stage. It not only affects the normal use of the machine, but also shortens its service life. Whats worse, it affects the progress of the project because of the destruction of machinery,

1. Making a big comprehensive safety production inspection for crushing plant every month. And analysis the results of the inspection, formulate corrective measures. and written by the department in charge of safety for filing.

2. The workshop team recurring inspect. If you discover the problem, you should report to the leadership and the specialized department in time. It needs to solve and not allow working with the problem to make sure the safety job of the whole rock crusher plant.

3. The electric installation, crusher machine, conveyance such as belt conveyor, and protective equipment need to check for them every year. Problems found in the inspection should be written, file for future reference, and solve within a time limit to ensure safety in production.

JXSC is a factory which manufactures stone crusher machine. We have professional engineers and stylists in the crushing aspect. And as a crusher manufacturer, we have 40 years of production experience. The proven technique is our factory advantage.

Jiangxi Shicheng stone crusher manufacturer is a new and high-tech factory specialized in R&D and manufacturing crushing lines, beneficial equipment,sand-making machinery and grinding plants. Read More

maintenance & inspection of quarry plant & equipment procedure | agg-net

maintenance & inspection of quarry plant & equipment procedure | agg-net

This is a written procedure which covers all aspects of the maintenance and inspection of plant and equipment. It also provides detailed information on its implementation within the workplace. A PDF of the procedure is available to download (see attached), please use it in conjunction with the attached Checklists and Toolbox Talks.

This workplace procedure forms part of a Health & Safety Risk Management System for employers in the quarrying industry. The procedures, which cover a wide range of workplace risks and hazards, can be viewed here

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