The Operating Instruction of Mining Impact Crusher

January 03, 2015

First, the Preparations before the Start of the Impact Crusher

1. Before the start of an impact crusher, the rotors and the hammer heads inside the machine should be examined. And it should be checked whether there is crack on the impact plate or the lining plate. Besides, check whether the screws on the lining plate are firm.

2. To check whether there are stone materials inside the crushing cavity. If there are stone materials inside the cavity, they should be cleared away immediately, which can guarantee that there is no load for the start of the machine.

3. Before the start of the impact crusher, the machines in the front and back procedures should be connected with the impact crusher well. When the belt conveyors and the bag collectors are in operation normally, the impact crusher can be started.

4. If it is just after the maintenance of the impact crusher or the impact crusher has not been operated for a long time, the rotor should be rotated for two or three circles manually to ensure the flexibility of the machine. Then the impact crusher can be started.

5. To ensure that the gate of the machine has been sealed and fastened well. The belts of it should be tightened,

Second, the Operation of the Impact Crusher

1. The method of the start: start the second rotor firstly. When the current is stable, the first rotor can be started.

2. After the start of the impact crusher, it should be observed, under the condition of no load, whether the current is stable and whether the machine body is vibrating. If it is vibrating, the impact crusher should be stopped in time to find out the cause. And the anchor screws can be tightened a little in order to eliminate the vibration. The impact crusher must not be in operation when it is vibrating because the vibration of the machine may damage the anchor screws.

3. When it is of the switch trip because of the over current or other causes, the rotating speed will decrease and the sound of the machine will change. At this time, the feeder machine must be stopped immediately to end the feeding for fear that, at the low rotating speed, the stone materials might damage the parts of the machine.

4. In the operation of the impact crusher, it should be observed seriously whether the working current is normal. The temperature rise in electric motors should be less than 60℃. And the temperature of the large bearing of the impact crusher should be less than 75℃。 It should be dealt with in time if there are some abnormal situation.

Third, attentions

1. While replacing the hammer heads on the rotor, you should pay attention to the balance of it.

2. When you are operating the lid of the impact crusher, the upper lid should be supported with the wood blocking for fear of the failure of the hydraulic pressure system, which will cause that the operator may be hurt by the falling lid.

3. If the operator wants to come into the cavity of the machine, the rotor should be blocked with the wood blocking. Then the operator can come into it.

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