First, if you find the impact crusher vibration abnormal:
1, indicating that the material is too large, you can check the feed size.
2. The uneven wear indicates that the counter hammer needs to be replaced.
3, rotor imbalance, need to adjust.
4. If the foundation is not properly handled, check the anchor bolts and reinforce them.
Second, if you find the impact crusher bearing heat:
1, explain bearing lack of oil, need to refuel in a timely manner, of course, too much refueling will make the bearing heating, refueling must check the oil level.
2, bearing damage, to replace the bearings.
3, the upper cover is too tight, to adjust the bolt, moderate elasticity is appropriate.
Third, if found out impact crusher discharge size is too large:
1, explain the hammer head wear, need to idle or change the hammer.
2. The gap between the hammerhead and the counterattack board is too large, generally adjusted to 15-20mm. 3, too large feed particle size will affect the size of the material.
Fourth, such as impact crusher belt turnover:
1, the belt wear, need to replace the triangle belt.
2.Because of belt assembly problems, the pulleys need to be adjusted on the same plane.
3, we must pay attention to the quality of the triangle belt itself
Repair method
1. The counterattack crusher front counterattack plate hanger and rear counterattack hanger are merged into one to improve the elastic vibration of the counterattack plate, so that the material adhered to the counterattack plate can be timely delivered to the crusher shell, and the crusher After the material into the lower silo.
2, high manganese steel counterattack hammer counterattack recovery repair. For worn plate hammers, surfacing tests were performed using 506 electrodes, high carbon electrode No. 2 and high tungsten electrode No. 5. The counter-attack hammer after surfacing with a No. 5 high-tungsten electrode has the best wear resistance and impact resistance. The abrasion resistance of the counterattack hammer after welding with the 506 electrode and the 2nd high carbon electrode is also more than 2 times higher than that of the original high manganese steel counterattack hammer. However, the cost of these two surfacing welds is high and it is not economical. The use of high-tungsten welding rod No. 5 high wear resistance, economical and cost-effective, the specific method is to use the No. 5 high-tungsten electrode surfacing 2 to 3 times when the counterattack plate wear 3 ~ 5mm.
3, impact crusher blow angle increased from 1500 to 3,000, can increase the crackdown, to ensure that the size of the broken material.
4, counterattack crusher choose the right method of counterattack hammer, counterattack using the method of using the group of weight tolerance group method, row replacement method, cross dislocation method and symmetrical method.
5. The front gap between the rotor and shell of the impact crusher is increased from 10mm to 85mm, which can prevent the front of the machine from being blocked.
