Product Knowledge

How to Properly Use And Maintain Jaw Crusher?

author:dahua2 time:2022-03-08

Jaw crusher is an indispensable crusher in the current crushing industry. Jaw crusher belongs to the coarse crushing and medium crushing in the crushing equipment. It crushes the mined large pieces of ore into smaller particle sizes, with large crushing force, reliable operation, convenient operation and maintenance, and is the main equipment for crushing mine ore and rock. Proper care and maintenance during use can reduce condition and service life.


As a "tiger mouth" that takes all of the soft and hard, the correct operation and maintenance are important factors to ensure the continuous and normal operation of the jaw crusher. Pay particular attention to the following aspects:

1. Precautions for use

The equipment must be thoroughly inspected before start-up. Check the wear of the crushing tooth plate; adjust the size of the ore discharge port; check whether there is ore in the crushing cavity, if there is a large piece of ore, it must be taken out; Check whether the tension of the pull rod spring is appropriate, whether the oil storage tank is full, whether the electrical equipment and signal system are normal, etc.

During the operation, it is necessary to keep the ore feeding evenly, avoid side feeding or full feeding, so as to avoid unilateral overload or overload. The ore should not be crowded into the crushing cavity, and the maximum size of the feeding block should not be greater than 0.85 times the width of the feeding opening. At the same time, strictly prevent non-broken objects from entering the jaw crusher when feeding ore.

When stopping, stop according to the sequence of the production process. First stop the ore feeding, and stop the jaw crusher and belt conveyor after all the ore in the crushing cavity is discharged. When the crusher stops stably, the work of the lubrication and cooling system can be stopped. In winter, the circulating cooling water in the bearing should be released to prevent the bearing from being frozen and cracked. After the machine is shut down, it is necessary to clean up and inspect all parts of the machine.

2. Maintenance

1. Lubrication

In the production operation of jaw crusher, attention should be paid to the lubrication of the equipment, just like people need face cream and hand cream, keep nourishing and lubricating to show a good state. Generally, the grease added to the bearing seat of the jaw crusher is about 50% of its space volume, and is replaced every 3-6 months. An appropriate amount of grease should be injected between the bracket and the bracket seat.

2. Dust removal

In the production process of jaw crusher, a large amount of dust will be generated, which will cause greater pollution. With the tightening of environmental protection policies in recent years, dust removal is an indispensable link. We can do it for different situations.

For the high-pressure wind generated by the high-speed rotation of the crusher, we can do our best to seal the chute behind the crusher and the belt conveyor; for the high-pressure wind that cannot be blocked, we can use the method of dredging to reduce the pressure wind.

For the dust absorbed and collected by the dust collector, the return port is displaced, the discharge port inside the chute is moved to the outside, and then the pulverized coal is collected into the material chute with cloth bags, and then cleaned manually. At this time, the air flow forms a closed-circuit circulation, which reduces the coal dust inhaled by the dust collector.

Luoyang Dahua Heavy Industry Science and Technology Co., Ltd. is a direct-selling mining crusher manufacturer integrating R&D, production, sales and service. Its production scale is large, its strength is strong, and its price is affordable. Our equipment not only guarantees quality, but also provides perfect after-sales service. With a professional R&D team and a strong after-sales team, we will serve you from equipment selection, site inspection, equipment manufacturing, installation, commissioning, delivery and use.

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