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Dry Ball Mill

[Introduction]: A grinding equipment used to deal with dry materials.

[Capacity]: 0.25-100t/h

[Improvement]: Xinhai dry ball mill is horizontal type and tubular running device, which has two warehouses. This machine is grid type and its outside runs along gear.

ADVANTAGES

1. Strong adaptability to the material, continuous production, and easy to adjust the fineness of grinding product;
2. Straight tubular designed at the discharge port, equipped with air-inducing device, which has a good dedusting effect;
3. Dy ball mill can be used for one-pass grinding or close-circuit grinding that is composed of powder concentrator;
4. Overflow dry ball mill and grid dry ball mill can be selected according to the ore property and discharge way;
5. The output material after the dry grinding is the qualified material;
6. Dry ball mill can be divided into levorotary type and dextral type according to the grinding process;
7. Simple structure, easy to maintain; the hollow shaft adopts steel casting, which make the linear replacement easier.
Note: The feed water of dry ball mill should not be too high, otherwise the material is easy to bond, thus resulting in the difficulty of ore discharge.

PRODUCT STRUCTURE

Dry Ball Mill-principle

The materials are uniformly sent to the first chamber of dry ball mill by the feeding device through the feeding hollow shaft. The first chamber of dry ball mill contains stepped lining board or corrugated lining board, and steel balls of different specifications. The centrifugal force generated by the cylinder rotation will bring the steel balls to a certain height and then drop down, which will have a pounding and grinding effect on the materials. After the rough grinding is finished in the first chamber of dry ball mill, the materials will enter into the second chamber through the single-wall partition, which is lined with flat lining board and steel balls to further grind the materials. The powder material is discharged through discharge grates, then the grinding operation is completed.

TECHNICAL PARAMETERS

Models	Drum speed （r/min）	Ball load (t)	Feed size (mm)	Discharging size (mm)	Yield (t/h)	Motor power (kw)	Total weight (t)
Models	Drum speed （r/min）	Ball load (t)	Feed size (mm)	Discharging size (mm)	Yield (t/h)	Motor power (kw)	Total weight (t)
Ф900×1800	36-38	1.5	≤20	0.075-0.89	0.65-2	18.5	5.85
Ф900×3000	36	2.7	≤20	0.075-0.89	1.1-3.5	22	6.98
Ф1200×2400	36	3	≤25	0.075-0.6	1.5-4.8	30	13.6
Ф1200×3000	36	3.5	≤25	0.074-0.4	1.6-5	37	14.3
Ф1200×4500	32.4	5	≤25	0.074-0.4	1.6-5.8	55	15.6
Ф1500×3000	29.7	7.5	≤25	0.074-0.4	2-5	75	19.5
Ф1500×4500	27	11	≤25	0.074-0.4	3-6	110	22
Ф1500×5700	28	12	≤25	0.074-0.4	3.5-6	130	25.8
Ф1830×3000	25.4	11	≤25	0.074-0.4	4-10	130	34.5
Ф1830×4500	25.4	15	≤25	0.074-0.4	4.5-12	155	38
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	245	43.8
Ф2100×3000	23.7	15	≤25	0.074-0.4	6.5-36	155	45
Ф2100×4500	23.7	24	<25	0.074-0.4	8-43	245	56
Ф2100×7000	23.7	26	<25	0.074-0.4	12-48	280	59.5
Ф2200×4500	21.5	27	<25	0.074-0.4	9-45	280	54.5
Ф2200×6500	21.7	35	<25	0.074-0.4	14-26	380	61
Ф2200×7000	21.7	35	<25	0.074-0.4	15-28	380	62.5
Ф2200×7500	21.7	35	<25	0.074-0.4	15-30	380	64.8
Ф2400×3000	21	23	<25	0.074-0.4	7-50	245	58
Ф2400×4500	21	30	<25	0.074-0.4	8.5-60	320	72
Ф2700×4000	20.7	40	<25	0.074-0.4	22-80	380	95
Ф2700×4500	20.7	48	<25	0.074-0.4	26-90	480	102
Ф3200×4500	18	65	<25	0.074-0.4	According to the process conditions	630	149
Ф3600×4500	17	90	<25	0.074-0.4	According to the process conditions	850	169
Ф3600×6000	17	110	<25	0.074-0.4	According to the process conditions	1250	198