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Features of ball mill,ginding mill, 1.Long using life., 2.Easy to do maintenance., 3.Prompt delivery - details see: https://www.machineto.com/cement-grinding-mill-cement-ball-mill-cement-processing-plant-10284635

Meichang Ball mill,Grinding mill

Ball mill introduction

ball mill is a cylindrical device used to grind (or mix) materials like ores,chemicals, ceramic raw materials and paints. Ball mill rotate around ahorizontal axis, partially filled with the material to be ground plusthe grinding medium. Different materials are used for media, includingceramic balls, flint pebbles and stainless steel balls

Ball mill working principle:

Ball mill,a kind of horizontal drum-type rotating device, is a grate mill with external gear and double bins. Materials shall be evenly charged through quill shaft in feeding device into the first bin, which hasstep or waved lining with steel balls in different specifications.Steel balls are taken to a certain height by centrifugal force from drum rotation and then fall. Thus it will give a heavy blow to materials, playing a role of grinding. Materials after crushed in thefirst bin shall enter bin across single-layer diaphragm into the second, which is provided with flat lining with steel balls, to go through further grinding. Powder shall be discharged from discharging grating, ending

Ball Mill Structures:

Ball Mill is made up of feeding part, discharging part, gyre part, transmission part, (decelerator, small transmission gear, generator, electrical control) and so on.Cylinder is rolled and welded with Q235B steel plate. (the steel thickness is generally 1/100 of the cylinder diameter, for example ball mill of Φ1500, the steel plate thickness is 16 mm), the material of inlet and outlet hollow shaft is ZG35, hollow shaft and the cylinder flange stop mouth is positioned, and bolts are tightened; According to the cylinder length it can be divided single storehouse, two warehouse or three warehouse, each warehouse in the cylinder set a "manhole door", to clean up steel ball, maintenance, replacement liners. Monolayer partition liner between each warehouse can ease the material pressure, adjust and control the material flow, so as to realize the warehouse different grinding size. The warehouse liner has different shapes, you can use ladder liner, waveform liner, layering liner etc. In the warehouse grinding media type specification can also be different according to the technical requirement; The head of the liner bolts can be square sink type, can effectively reduce the ball hit on the bolts and wear and loose. Liner bolts tail with the special seals and gasket sealed, can effectively prevent materials were leaked

Types of Ball Mill:

We have various of Ball Mill,such as 1830*7000,2200*3600,2200*4500,3600*4500,3800*6500, 4000*6000 etc.

In order to give you a responsible quotation, you can inform us the following information:

1. What’s the material you are going to deal with?

2. What’s the granularity of the material?

3. What’s the granularity of the final products are you going to achive?

4. What’s the producing capacity you are going to achieve?

Model	Input size (mm)	Output size (mm)	Max. weight of balls (t)	Speed (r/min)	Power (KW)	Capacity (t/h)	Weight (t)
Φ1500×3000	≤25	0.047-0.4	9	29	75	3.3-8.2	14.12
Φ1500×4500	≤25	0.047-0.4	13.5	29	90	4.5-12	20
Φ1500×5700	≤25	0.047-0.4	17	29	110	2.6-1.4	21.5
Φ1830×4500	≤25	0.047-0.4	20	25.86	155	4-19	32
Φ1830×7000	≤25	0.047-0.4	31.5	25.3	210	6-22	36.5
Φ2100×3600	≤25	0.047-0.4	20	22	210	7.6-28	42
Φ2200×3600	≤25	0.047-0.4	25	21.7	245	5.2-32	44
Φ2200×7000	≤25	0.047-0.4	46	21.7	380	15-38	63
Φ2400×3600	≤25	0.047-0.4	28	21.3	320	8-60	47
Φ2400×4500	≤25	0.047-0.4	35	21.3	380	8.5-60	70.5
Φ2700×3600	≤25	0.047-0.4	40	21.6	400	12-90	91.3
Φ2700×4500	≤25	0.047-0.4	48	21.6	430	12-100	102
Φ3200×4500	≤25	0.047-0.4	60.5	18.3	630	95-110	155
Φ3200×6400	≤25	0.047-0.4	86	18.3	1000	100-150	165
Φ3600×4500	≤25	0.047-0.4	76	17.3	1000	31-170	200
Φ3600×6000	≤25	0.047-0.4	102.5	17.3	1250	40-190	230
Φ3800×6500	≤25	0.047-0.4	130	16.5	1400	45-230	185.2
Φ4000×6000	≤25	0.047-0.4	126	16	1500	60-280	260

Ball mill grinding media solution:

How to add steel balls into the ball mill according to steel ball size ratio?
Generally, the ball mill of new installation has a run-in process. In the process of running in, the amount of steel balls are added into the ball mill account for about 80% of the maximum loading balls. The proportion of steel balls can be determined by the ball size(Φ120mm,Φ100mm,Φ80mm,Φ60mm,Φ40mm).
Different models of ball mill need different of ball quantity. Let’s take 1500*3000 for an example, its maximum loading ball 9.5-10tons. For the first time the big steel balls (120mm and 100mm) accounted for 30%-40%, medium size balls (80mm) accounted for 40%-30%, the small balls (60mm and 40mm) accounted for 30%.
Someone may ask: why do you suggest to add only 80% steel balls in the running in process of ball mill? That’s because the gears need to mesh after installation of a new ball mill. The capacity(ore quantity) is gradually increased in the process of production. After the ball mill normally runs for two or three days, you should stop the machine and check the meshing situation. If everything is going on well, you can open the hole cover of ball mill to add the remaining 20% steel balls.
Note:the small balls are just added in the first time of adding balls. Under normal circumstances, there is no need to add small balls at ordinary times. If the fineness of grinding mill machine can’t meet the requirement of discharging size, you can add an appropriate amount of small balls. When the operation of ball mill is normal, the friction between steel ball and steel ball, steel balls and ores, steel balls and mill liners will make abrasion increases. It follows that the bigger balls become medium size balls, the medium balls become smaller balls.

Steel ball size proportion: If the diameter of ball mill is below 2500mm, it can be configurated the steel balls with diameter of 100mm, 80mm and 60mm. If the diameter of ball mill is more than 2500mm, it is suitable for the steel balls with diameter of 120mm, 100mm, 80mm.

Photos about Ball mill,Grinding mill