Ball Mill

Brief Introduction

Ball Mill is an efficient and expedient tool for grinding many materials into fine powder. The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. The Ball Mill is usually used to grind many kinds of mine and other materials, or to select the mine. It is widely used in building material, chemical industry, etc. There are two grinding ways of the ball mill: the dry way and the wet way. It can be divided into tabular type and flowing type according to different expelling mine.

Main structure

The Ball Mill body consists of an all-welded mill shell and a T-sectional welded-up slide ring at either end, the cylindrical part of which is welded onto the ends of the shell. Side-driven mills have a reinforced shell section with a flange for bolting on the girth gear. Centrally driven mills have an outlet cone with large openings for material and venting air. The large diameter of this cone is welded onto the cylindrical part of the outlet slide ring, while the small diameter of the cone has a flange for bolting on the coupling of the central drive. The mill shell has four manholes,two for each grinding compartment.

Working Principle

Ball Mill is an important kind of equipments for the secondary grinding. After the material entering the hollow axis by the feeder, the material will be taken evenly and spirally into the first warehouse, where there is the ladder liner or the ripple liner with the different steel balls. When the tube structure revolving produces the centrifugal force, the steel balls will be carried higher to some extent, and then fall down to strike and grind the material. After grinded generally in the first warehouse, the material then will be taken into the second warehouse, in which there is the flat liner, the material will be regrind and then be discharged through the discharging grate liner. It is widely used for the cement, the silicate product, new type building material, fire-proof material, chemical fertilizer, black and non-ferrous metal, glass, ceramics and etc. Two kinds of process methods: by wet process or by dry process are both available.

Ball Mill Technical Data

Model	Rotary Speed(r/min)	cBall Quantity (t)	Input Size (mm)	Output Size (mm)	Capacity(t/h)	Power (kW)	Weight (t)
900x1800	38	1.5	20	0.075~0.89	0.65~2	18.5	3.6
900x3000	38	2.7	20	0.075~0.89	1.1~3.5	22	4.6
1200x2400	32	3.8	25	0.075~0.6	1.5~4.8	45	12.5
1200x3000	32	5	25	0.074~0.4	1.6~5	45	12.8
1200x4500	32	7	25	0.074~0.4	1.6~5.8	55	13.8
1500x3000	27	8	25	0.074~0.4	2~5	90	17
1500x4500	27	14	25	0.074~0.4	3~6	110	21
1500x5700	27	15	25	0.074~0.4	3.5~6	132	24.7
1830x3000	24	11	25	0.074~0.4	4~10	180	28
1830x6400	24	23	25	0.074~0.4	6.5~15	210	34
1830x7000	24	25	25	0.074~0.4	7.5~17	245	36
2200x5500	21	30	25	0.074~0.4	10~22	370	48.5
2200x6500	21	30	25	0.074~0.4	14~26	380	52.8
2200x7500	21	33	25	0.074~0.4	16~29	475	56