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Coal Ball Mill

Feed Size: 0-25mm
Capacity: 0.65-28t/h
Raw materials: coal
Application: thermal power plants or cement plant.

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Product's Introduction
Principle of Work
Technical Parameter

■ Product's Introduction

Coal ball mill is one of auxiliary equipment in coal-fired power stations, and the theme equipment in coal powder equipment system. This series of ball mill is mainly used for grinding various hardness of pulverized coal. Also it applies to cement, metallurgy, chemical industry and mineral coal and raw material system powder system.

Advantages of the Coal Ball Mill:

1. Coal ball mill the intrinsic grinding machine structure. Coal ball mill body and ground plank are an integral whole, so when fixing, it can be lowered on a plane surface once only.

2. Using double tiered roller axletree with centripetal spherical surface as the support of the host axletree can reduce energy cost by 30%.

3. The intrinsic grille pattern forcing evacuation is instead by overflow pattern controlling one. Coal ball mill can improve the milling of the granule and the capacity be increased by 15-20%.

■ Principle of Work

Coal Ball Mill Working Principle:

The material goes into the first chamber of coal ball mill in a spiral way evenly from the feeder unit by the feeding hollow shaft. There is ladder lining plate or ripple lining plate within the storehouse and there are steel balls of different specification. The centrifugal force produced by the rotation of the barrel takes the steel balls to certain height, and then throw it down, thus smite and grind the material. After the coarse grinding in the first chamber, the material goes into the second chamber by monolayer isolation board. The material is ground further. The powder is discharged from the unload board.

■ Technical Parameter

Technical Parameter of Coal Ball Mill

Type	Speed（r/min）	Ball Weight(t)	FeedingSize(mm)	Output size(mm)	Capacity（t/h）	Power(kw)	Weight(t)
Ф900×1800	36～38	1.5	≤20	0.075-0.89	0.65-2	18.5	4.3
Ф900×3000	36	2.7	≤20	0.075-0.89	1.1-3.5	22	5.3
Ф1200×2400	36	3	≤25	0.075-0.6	1.5-4.8	30	11.4
Ф1200×3000	36	3.5	≤25	0.074-0.4	1.6-5	37	12.8
Ф1200×4500	32.4	5	≤25	0.074-0.4	1.6-5.8	55	13.8
Ф1500×3000	29.7	7.5	≤25	0.074-0.4	2-5	75	16.8
Ф1500×4500	27	11	≤25	0.074-0.4	3-6	95	21
Ф1500×5700	28	12	≤25	0.074-0.4	3.5-6	110	25.8
Ф1830×3000	25.4	11	≤25	0.074-0.4	4-10	130	29
Ф1830×4500	25.4	15	≤25	0.074-0.4	4.5-12	155	35.5
Ф1830×6400	24.1	21	≤25	0.074-0.4	6.5-15	210	43
Ф1830×7000	24.1	23	≤25	0.074-0.4	7.5-17	210	43.8
Ф2100×3000	23.7	15	≤25	0.074-0.4	6.5-36	155	34.8
Ф2100×4500	23.7	24	≤25	0.074-0.4	8-43	245	38
Ф2100×7000	23.7	26	≤25	0.074-0.4	8-48	280	46.6
Ф2200×7000	21.7	35	≤25	0.074-0.4	15-28	380	51.3

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