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Powder Grinding Mill

Powder Grinding Mill

The powder grinding mill can grind barite, calcite, feldspar, talc, marble, limestone, dolomite, fluorite, bentonite, kaolin, gypsum from ≤35 mm into 3000 mesh. Both Electric engine and Diesel engine are optional. Capacity: depended on finished material fineness

Advantages

Feeding Granularity: ≤15 mm -≤25 mm
Production Capacity: 4-55t/h
Range of Application: high fine powder processing of more than 380 kinds of materials with below 6% humidity in non flammable and explosive mines, metallurgy, chemical industry, building materials and so on.

Powder grinding mill is suitable for high fine powder processing of materials whose Mohs hardness is not more than 9.3 level and humidity is below 6%, such as barite, limestone, ceramics, slag and so on. Granularity of finished products can be adjusted in the range of 80 to 425 Mesh(the finest granularity is 1000 mesh). It is widely used in powder grinding plant. Because this powder grinding mill can grind all kinds of stone and minerals, so, it is also called stone grinding mill and mineral grinding mill.

grinding mill

Powder Grinding Mill

Working Principle of Powder Grinding Mill

Inside the host of grinding mill machine, the roller hanger is fasten a high pressure spring with 1000 to 1500 kilogram of pressure. When the machine is working, roller rotates around the main shaft and rolls close to grinding ring under the action of centrifugal force. Its pressure is 1.2 times higher than that of Raymond mill with same dynamic conditions, hence, it yield is improved greatly. After having entered grinding cavity, materials to be ground is scooped up to clearance between grinding roller and grind ring by the shovel, the ground powder enters the analyzer with the circulating air of air blower, qualified powder flows into the cyclone powder collector with air flow and becomes finished product. And large particle materials will fall back for regrinding.

Circulating air returns air blower to repeat the above process, and the remained wind enters bag dust collector for purifying. When abrasion of grinding roller and ring reach a certain degree, it's essential to adjust length of high pressure spring to maintain constant grinding pressure between grinding roller and ring, thus ensuring stable yield of high strength pulverizer.

Model Specifications

     Parameter
Model
High-strength97 High-strength93 High-strength92 High-strength87 High-strength76 High-strength66 High-strength62
Feeding 
size(mm)
≤25 ≤25 ≤25 ≤25 ≤20 ≤15 ≤15
Size of finished 
product(mm)
0.125-0.033 0.125-0.033 0.125-0.033 0.125-0.033 0.125-0.033 0.125-0.044 0.125-0.044
Shift output of
 different material 
fineness(t)
4-52 3.5-40 3-36 2.8-33 1.5-25 1-20 0.6-9
Rotate speed 
of central 
shart(r/min)
130 140 148 161 170 190 274
Diameter of 
pulverizing 
ring(mm)
1050 1006 973 907.5 850 640 525
Diameter of 
pulverizing 
ring(mm)
310 300 290 270 250 210 150
Height of
 pulverizing 
roller(mm)
170 160 150 150 150 150 100
Main Motor Y225S-4-37 Y225M-8-30 Y225M-8-22 Y225M-8-22 Y225S-8-18.5 Y200L-8-15 Y160M-6-7.5
Fan Motor Y200L-4-37 Y180M-2-22 Y180L-4-22 Y180M-4-18.5 Y160L-4-15 Y160M-4-11 Y132S-4-5.5
Analyzer Motor YC122-4A-5.5 Y112M-6-3 Y112M-6-2.2 Y112M-6-2.2 Y112M-6-2.2 Y112M-6-2.2 Y90L-6-1.1

 

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