Ball mill is the key equipment to further crush the broken material. It is widely used in cement, silicate products, new building materials, refractory materials, fertilizers, black nonferrous metals, glass ceramics and other production industries. Dry or wet grinding of various ores and other grindable materials can be carried out.

Working principle

This machine is a horizontal cylindrical rotary device, with external gear drive, two storehouse and lattice ball mill. The material is made of the feeding device through the hollow shaft of the feed into the first silo of the mill. There are stepped lining or corrugated lining in the silo, with different specifications of steel ball in it. The cylinder is rotated to produce centrifugal force to drop the ball to a certain height and produce heavy blow and grinding to the material. After rough grinding, the material enters the second storehouse through a single storehouse board. It has a flat lining plate and a steel ball, which further grinds the material. The powder is discharged through the discharging grate plate to finish the grinding operation.

The ball mill is the key equipment to crush the material after being crushed. It is widely used in cement, silicate products, new building materials, refractory materials, chemical fertilizers, black and ferrous metal mineral processing and glass ceramics and other production industries, for all kinds of ore and other grindable materials are dry or wet grinding.

When the ball mill is installed and passed the inspection, the empty car can be run. The trial run of ball mills should be carried out by skilled ball mill operators and strictly abide by the safety operation rules of ball mills.

(1) the continuous running time of air transportation is not less than 12-24 hours. Problems should be solved in operation.

(two) load test run can be carried out normally. The load test should be carried out in stages. During loading operation, feeding should be conducted according to the discharging condition, so as to avoid unnecessary abrasion and damage of steel balls and liner.

1, add suitable materials and 1/3 quantity of steel balls (maximum ball load to see ball mill general plan) for 12-24 hours.

2. The number of steel balls added to 2/3 runs for 24-48 hours.

3. According to the discharge of ball mill, the output of qualified products and the actual ball loading of the ball mill in the same kind of concentrator, the reasonable loading of the ball mill is determined, and the trial operation of the ball mill is less than 72 hours.

(three) the increase of the load and the length of the running time are determined on the basis of the running and closing of the gear and gear of the reducer (Wen Sheng, noise, contact of the tooth surface, etc.). Before the contact accuracy of the tooth surface is not up to the design requirements, it must not operate at full capacity.

(four) the cooling and lubricating system should work normally during commissioning. The temperature of the main bearing, the drive bearing and the reducer should be normal.

(five) after testing the steel ball loaded with 2/3 for 24-48 hours, check and tighten all the bolts again.

(six) to do well in the trial run.

Structural characteristics

The ball mill consists of feeding parts, discharging parts, rotary parts, transmission parts (reducer, small transmission gear, motor, electronic control) and other main parts. The hollow shaft is cast steel members, and the inner lining can be dismantled. The rotary large gear is machined by casting hobbing, with a wear-resistant lining plate inside the barrel, which has good wear resistance, stable operation and reliable operation.

According to the material and discharge way, dry ball mill and wet grid type ball mill can be selected.