Grinding balls. Specific gravity of steel
Test results of the experimental batch of balls 100mm “Energosteel”
The company “ENERGOSTEEL” completed the industrial test of grinding balls 40 mm of the fifth group of hardness (DSTU 3499-97) on the basis of one of the largest Ukrainian mining & processing enterprises in July 2016. Tests were carried out jointly by technical experts of the both companies.
Grinding balls experimental batch have been loaded in the test mill MSHTS 4500х6000 with the following parameters: internal diameter – 4430 mm; the height of lining plates – 100 mm; lifter height – 83 mm and lifter width – 208mm. The material for grinding was middling product (the original ore hardness 9-11 Scale Protodjakonova).
During the test was chosen a method of loading an experimental batch of balls in the mill, not the method “substitution”, because:
- The test mill was put into operation after overhaul.
- This method significantly reduces the duration of the test, because excluded the replacement of the grinding media used earlier with the experimental grinding balls.
In addition to the specific consumption of grinding media during the industrial experiment also the technological parameters of the section was analyzed.
According to the test results, based on obtained technical and technological performance of the test mill and work of the section the experts of processing enterprise decided to switch to the use of steel grinding balls of the fifth group of hardness (DSTU 3499-97) produced by “Energosteel” in the third grinding stage.
Currently all the necessary documents are signed and the first production batch of grinding balls of the fifth group of hardness (DSTU 3499-97) of our production will be delivered in September.
Department of technical sales support of the company “Energosteel” will continue to accompany these shipments of balls.