Test of Double Roller Crusher

After installing the machine completely, it can start test If no problem after non-loading test for 4 hours, then the loading test can be started

After installing the machine completely, it can start test. If no problem after non-loading test for 4 hours, then the loading test can be started.

1. NONE-LOADING TEST

The following items should be paid attention while test:

(1) Two electric motors of the crusher must be simultaneously started up.

(2) Listen carefully for the sounds of motor, reducer and bearings whether are normal.

(3) The temperature rise of bearing can not exceed 35℃.

(4) The transmission should be steady, the vibration should be small and there is no unusual voice. If not, stop test and make inspection.

(5) After the test, all the connect joints should be tightening up again and inspect whether there is an abnormal phenomena on roller sheets, if is, remove it.

None-loading test must be 4 hours or more, and inspect the rise of temperature in each part, check operation sounds, current in motor and control bin whether are normal.

After the test, inspect the contact situation on friction surface of reducer whether it is normal, and whether any screw gets loose and remove them in time.

2. LOADING TEST

(1) After qualified non-loading test, start the loading test, and it is 8 hours.

(2) While loading test

a. The start-up sequence is:

Discharge conveyor → Crusher → Feed conveyor

b. The close-down sequence is:

Feed conveyor → Crusher → Discharge conveyor

c. The crusher must be started with non-loading, feed material until it becomes normal operation.

(3) The max feeding should be under designing rule. The over big material is prohibited to enter the crusher.

(4) It should be from few to more by degrees to full-loading while feedings, NOT allowed feed once fully.

(5) It should make equably distribution as the length of roller while feeding.

(6) Adjust the safety adjustment screw rod to make the discharge granularity is suitable according to the discharge granularity.

After loading test for 8 hours, it can be put into manufacturing if no problem.