What is a vibrating grizzly feeder?
vibrating grizzly feeders produce a linear
vibration in their table and grate sections in the primary stage for the
simultaneous performance of feeding and separation processes.
The grid spacing of the feeder is selected according to the curve of the material being fed and, generally, the opening of the crusher to be fed. As a result, materials smaller than the crusher setting level are prevented from entering the crusher. The remaining clean material can then bypass the crusher, while unwanted materials are sieved and passed through the screens before being discarded as waste.
Although it is possible to mount vibrating grizzly feeders up to an angle of 20 degrees, 0 degrees is widely preferred for separation efficiency. If an increase in capacity is needed, the mounting angle can be increased by several degrees without loss of separation efficiency.
In which processes/applications are vibrating grizzly feeders used?
There may also be rocks smaller than the opening of crusher outlet after crushing the fed material. Screening fine material to prevent it being fed into the crusher will reduce the load on the crusher. In some applications, the removal of dirt and grit from the material is achieved through the use of vibrating grizzly feeders. Vibrating grizzly feeders also protect crushers from potential impact from large pieces of rock.
What are the key criteria in the selection of vibrating grizzly feeders?
The most important parameters when selecting a vibrating grid screen are the capacity and the width of the crusher mouth, although the ratio of the materials to be separated through grids before entering the crusher should also be taken into account.
Useful tips for the maintenance and operation of vibrating grizzly feeders.
As with other crushing and screening equipment, the necessary daily, weekly and monthly checks and maintenance procedures are described in detail in the user manual. In general:
· The lubrication or grease of vibration motors or other drive mechanisms should be checked, if present;
· Wear and tear should be checked, and parts should be replaced if necessary;
· Fittings should be checked periodically and loose parts should be secured
· Springs and rubber damping wedges should be checked periodically, and replaced if necessary.