• Introduction
• How to work
• Installation
• Maintenance
• Cases

Before Installation of Impact Crusher

The installer and operator should be familiar with the structure of Impact Crusher, characteristics and technical requirement, be acquainted with the necessary operating regulation and design the proper installation flow in advance.

There should be some equipment for hanging the Impact Crusher.

Check the hole for the base bolts is coincident with the draft and other design draft.

During Installation of Impact Crusher

The Impact Crusher must be installed on the reinforced concrete. The height, depth and area of base should be calculated according to the local field condition. The machine also can be installed on the steel frame.

The base should be flat. The crossing plane of the body and the foundation can’t leak dust and the foundation bolts should be fastened. There should be enough space below the base to transport and repair equipments.

There should be stuff for absorbing vibration between equipments and the foundation.

During installation of Impact Crusher, replacing or adjusting the hammers, pay attention to its weight. In the symmetrical position, its weight difference should be limited to the minimum.

Before the first start and after a long time operation, check the distance between the bottom edge of the impact plate and the top of the hammers. Make sure the distance between the front impact frame and the hammers is twice that between the back impact frame and the hammers.

To avoid the damage of the impact crusher, it’s better to install hopper to feed the stuff. Also the discharge chute between impact crusher and conveyor belt shall be installed under the outlet of crusher.

Preparation Before Trial Run

Check and confirm that there aren’t other things and stuff in the Impact Crusher.

Check whether all the fastened parts are fixed.

Check whether the inspection doors are close. Every door should be spread thicker grease lubrication around before it’s closed so that when it is closed, it will be well air-tight.

Check whether there is oil grease of proper quantity in the bearing.

Check whether there is block of axis.

Check whether the distance between the impact plate and the rotor reaches the standard.

Running Impact Crusher Without Loading

Before operating the electric motor to try the Impact Crusher machine, move it manually and after confirming there is no abnormal sound, start it without stuff.

Trying it without stuff. Conform to the principle of first start and then continuance. After confirming there is no abnormal sound, trial-run it without stuff.

The Impact Crusher should be operated steadily and no abnormal vibration and no abnormal sound without stuff. It should move not less than 2 hours continuously without load and the temperature of the bearing should be steady and its rising should not exceed 30℃.

Trial-run Impact Crusher With Stuff

After the trial-run without stuff is normal, try to operate it with stuff. The lasting time of trying operation with stuff should not less than 4 hours.

Feeding

Feeder device is adopted to feed evenly and continuously. Make sure the stuff lies in all the working parts of the rotor, which not only guarantee the capacity, but also can avoid the block of stuff, and increase the Impact Crusher lifetime. The electrical control system of feeder device should be locked with that of the crusher. When the crusher overloaded, the conveyor belt can firstly cut off the electric power automatically and stop feeding.

Stop of the Impact Crusher

Before stopping the Impact Crusher, stop the feeding first and when the stuff is crushed completely in the cavity, cut off the electric power to stop the machine.

After the trial-run with stuff, check the following situation: the fastening of all join screw bolts and foundation bolts, the location of the hammers and the position of the liners. If necessary, adjust it.