Ball Mill : Extreme fine Equipment for Crushing and Grinding

Ball Mill is one of the fine materials crusher or grinders to nano-size form. It comprises a hollow cylindrical shell or rotating its own axis. It may be the horizontal or vertical direction. It filled the cylindrical shell with balls which are made from chromic steel, rubber, stainless steel and ceramic. An abrasion resistance materials like rubber lining or manganese steel with an inner core-shell (Cylindrical). In the ball, the milling diameter is near ranges to its length in size.  

Attrition and Impaction main segmental work. From the upper part of the shell equipment that are helpful for reduction of the bulk material sizes by rotation (either vertical or horizontal).

Working Process

Normally we are using balls to crush the materials, we already discussed the materials in the previous paragraph. Starting from the rotation of the ball mail with its own axis either horizontal or vertical. As it rotates, the ball bounces around while shrinking the enclosed material. The internal force of the strikes helps to grind the material into a finer, and less coarse material. During the rotation with balls, it needs critical speed (the speed at which the enclosed wall rotates along with the inner balls. if balls cannot get speed so it's unlikely to get material to be crushed or there is no impact on the materials. 

Figure 1: Ball Milling Process

Measurable points on Ball Mill

1. Ball Mill doesn't have a cutting tool. 

2. It differs from Traditional Milling machines (TMM). TMM supports large workpieces while ball mill supports ores, ceramics, paints, etc.

3. During the ball milling process, the collision between tiny rigid balls in the concealed container will generate localized high pressure. 

Ball Milling Enzymatic Hydrolysis:

One of the best research papers noted ball milling theory, is that enzymatic hydrolysis performed planetary ball mill machine (DECO-SG 100 from China), aspen was pre-treated 1wt% dilute acid (H2SO4/aspen) for 1 hr across varying temperatures from 150 to 180 degree C). They kept the incubation temperature at 50 degrees Celsius) and the speed was around 800rpm. They conducted the cycle of ball milling enzymatic hydrolysis for 5 min or with 55-minute static incubation. Samples approximately 30 mg each) was collected and analyzed to assess the glucose level. 

One of the other research investigated in effects of milling parameters on the development of nanostructures alloy with High Energy Ball Milling. 

Grate Discharge Ball Mill

Grate discharge ball mill is a traditional ball mill with grate lining plate forced discharge method. The grate plate is installed at the self-discharge end of the ball mill. Materials of competent size access the fan-shaped chamber (formed of ribs and a dustpan-shaped liner) through tiny holes in the grate lining plate as well as rise to the outlet port as the cylinder rotates. The grate ball mill is ideal for wet grinding a wide range of ores and other grindable materials. It is widely used in mineral processing, construction, the chemical industry, and a variety of other industries.

Disadvantages of a Grate Discharge Ball Mill

Heavy foundation requirements: grate ball mills are large and heavy. If the core is not secure and strong enough, the equipment body will collapse while in operation. High cost: The grate ball mill is costlier than other ball mills due to its complicated configuration. Maintenance is time-consuming due to the sophisticated configuration of the grate ball mill and the ease with which the grate plate can be stopped. In general, the grate discharge ball mill is a high-configuration, low-energy-consumption beneficiation machine. It has a positive influence on performance, but it costs slightly more than other equipment.

–Model	Dimension(m)	Volume(m³)	Ball Load(t)	Rotation Speed(r/min)	Power(kw)	Discharge Size(mm)	Capacity (t/h)	Weight(t)
GMQG1530	φ1.5×3.0	4	8	27.6	75	0.074-0.8	2.8-12	15.5
GMQG1535	φ 1.5×3.5	4.6	11	27.6	75-90	0.074-0.8	3.4-14	16.3
GMQG1830	φ 1.8×3.0	6.5	13	25.3	132	0.074-0.8	4.8-21	28.2
GMQG1835	φ 1.8×3.5	7.58	16	25.3	160	0.074-0.8	5.8-25	30.8
GMQG1840	φ 1.8×4.0	8.65	17.3	25.3	185	0.074-0.8	6.6-28	33.4
GMQG1845	φ 1.8×4.5	9.75	19.5	25.3	210	0.074-0.8	7.2-31	36.2
GMQG2122	φ 2.1×2.2	6.7	14.7	23.8	160	0.074-0.8	5.3-24	43.2
GMQG2130	φ 2.1×3.0	9.2	17	23.8	185	0.074-0.8	6.0-26	46.8
GMQG2136	φ 2.1×3.6	11	19	23.8	210	0.074-0.8	6.5-29	49.1
GMQG2140	φ 2.1×4.0	12.2	20.5	23.8	220	0.074-0.8	7.2-32	50.2
GMQG2145	φ 2.1×4.5	13.8	22	23.8	250	0.074-0.8	8.1-36	51.8
GMQG2424	φ 2.4×2.4	9.8	20	22.8	220	0.074-0.8	6.6-32	54.8
GMQG2430	φ 2.4×3.0	12.2	25	22.8	250	0.074-0.8	7.5-38	57.8
GMQG2436	φ 2.4×3.6	14.6	30	22.8	280	0.074-0.8	8.5-42	60.8
GMQG2440	φ 2.4×4.0	16.2	33	22.8	355	0.074-0.8	9.5-47	63.8
GMQG2445	φ 2.4×4.5	18.2	37	22.8	400	0.074-0.8	10.5-55	66.3
GMQG2721	φ 2.7×2.1	10.7	24	21.7	280	0.074-3.0	8.5-84	66.4
GMQG2727	φ 2.7×2.7	13.8	29	21.7	315	0.074-3.0	9.0-105	71.7
GMQG2730	φ 2.7×3.0	15.3	32.5	21.7	355	0.074-3.0	10-120	77.3
GMQG2736	φ 2.7×3.6	18.4	39	21.7	400	0.074-3.0	12-145	82.4
GMQG2740	φ 2.7×4.0	20.5	43	21.7	450	0.074-3.0	13-159	84.73
GMQG2745	φ 2.7×4.5	23	50	21.7	500	0.074-3.0	15-180	89.1
GMQG3230	φ 3.2×3.0	22.65	46.9	18.6	500	0.074-3.0	16-182	139
GMQG3236	φ 3.2×3.6	26.2	52	18.6	560	0.074-3.0	19-190	143
GMQG3240	φ 3.2×4.0	29.2	57	18.6	630	0.074-3.0	22-210	147
GMQG3245	φ 3.2×4.5	32.8	65	18.6	710-800	0.074-3.0	29-235	151
GMQG3254	φ 3.2×5.4	39.2	81.6	18,6	800-1000	0.074-3.0	35-280	161
GMQG3640	φ 3.6×4.0	35.6	75	17.3	800	0.074-3.0	25-230	185
GMQG3645	φ 3.6×4.5	40.8	88	17.3	1000	0.074-3.0	29-259	190
GMQG3650	φ 3.6×5.0	45.3	96	17.3	1120	0.074-3.0	35-288	200
GMQG3660	φ 3.6×6.0	54.4	117	17.3	1250-1500	0.074-3.0	38-310	220
GMQG3685	φ 3.6×8.5	79	144	17.3	1800	0.074-3.0	50-450	260

Grate Discharge Ball Mill Specification is given above.