building meterials raw mill / raw ball mill equipment for sale

Specifications raw mill:

1)economical

2)high efficency

3)easy to control

4)environment friendly

  raw mill
    raw mill Introduction:
raw mill is the key equipment for secondary grinding after crushing. And it is suitable for grinding all kinds of ores and other materials, no matter wet grinding or dry grinding. Besides, raw mill is mainly applied in many industries, such as ferrous&non-ferrous metal mine, building materials, chemical, electric power, coal, traffic, light industry, etc. In our company, this series of high-efficiency ball mill adopts rolling bearing support instead of sliding bearing support with bearing bush. Therefore, raw mill can save energy by 10-20%. According to different discharging ways, it can be divided into two kinds, grate type and overflow type.       Working principle of raw mill :
The raw mill has horizontal cylindric rotating device, outer rotating with gear, two warehouses, is lattice-type ball mill. Material from the feeder device throuth hollow shaft of feeder evenly into the first warehouse of raw mill , there are ladder liner and ripple liner in the warehouse , built by steel ball with different specifications , rotating cylinder produces centrifugal force take the ball to a certain height then fall,have a impact of the thumping and grinding for the material. After the material in the first warehouse reach coarse grinding,pass throuth single-wall partition into the second position, the warehouse lined with flat lining and steel balls in it ,have further grinding for the material . Powder discharged through the discharging plate to complete the grinding operation.     Structural characteristics of raw mill :
This raw mill is made up of feeder part ,discharging part ,rotating part ,transmission part(reducer,samll transmission gear ,motor,electric control) etc. main part.Hollow shaft adopt steel casting, lining can be converted,big rotating gear processed by casting gear hobbing .In the barrel there are board of wear-resistant,have a good characteriatics of wear-resisting.The machine is of steady operating and reliable working.     Performance characteristics of raw mill :   1.This series raw mill is of wide scope of application , simple structure and easy maintenance.
2.This series raw mill has a big processing capacity, the advantages of continuous operation is obvious .
3.Cylinder liner and grinding media can use a variety of materials, corrosion resistance is strong, and use is wide.
4.This series raw mill is of convenient installation and commissioning , easy to operate.
5.This series raw mill productivity is high, the cost of use is low.         Technical parameters of  raw mill :
 

Spec.(diameter ×length) (m)	Rotary speed (r/min)	Feed size (mm)	Capacity (t/)	Load of grinding media (t)	Main motor			Main reducer		Weight (exclude motor and reducer) (t)
					Model	Power(kw)	Speed(r.p.m)	Model	Speed ratio
Φ2.2×7	21.4	≤25	20~25	31	YR148-8	380	740	ZD70-9	5	41
Φ2.2×13	21.6	≤25	33-37	58-60	YR630-8/1180	630	740	MBY630	5.6	95
Φ2.4×8	20.91	≤25	25-28	39-42	JR1512-8	570	740	ZD80-9	5	76.4
Φ2.4×10	20	≤25	38-40	50	YR710-8/1180	710	740	JDX630	5.6	92.4
Φ2.6×10	20.6	≤25	40-42	62-65	YR800-8/1180-8	800	740	JDX710	6.3	133
Φ3×9	19.13	≤25	50-55	76-80	YR1000-8/1180	1000	740	JDX800	6.3	137
Φ3.2×9	18.3	≤25	60-70	90	YR1250-8/1430	1250	740	JDX900	7.1	157
Φ3.5×10	17.3	≤25	75-80	87	YR1250-8/430	1600	740	JDSX1000	6.3	210
Φ3.8×7.5	16.7	≤20	85	85	YR710-8	1600	740	JDX900	5.6	218
Φ4.6×10 central-driven	15.1	≤25	195	190	YRK1000-8	3350	740	JS150-B		315

       

If any questions , pls feel free contact us , we apprecite your kindly contacting.

Address: No.33 Shenxia Road, Malu Industrial Park, Jiading District, Shanghai, China

Website:www.minggongmachinery.com

Zip/Postal: 201818

Contact Person: Ms.Connie Gao (Sales)

Telephone: 0086-21-59515611

Skype ID: shmg05

Fax: 0086-21-59515123

Mobile: 0086-15921678585