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- Feeding granularity: ≤15-30mm
- Finished product size: 0.125-0.044mm
- Processing capacity: 1-45 t/h
- Applicable materials: barite, calcite, potash feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, thermal insulation materials, etc.
- Applicable areas: Calcium carbonate crushing processing, gypsum powder processing, power plant desulfurization, non-metallic mineral pulverization, coal powder preparation, etc.
Limestone
The main processing materials of the limestone mill are lime and limestone. Lime and limestone are used in large quantities as building materials and are also important raw materials for many industries. In modern industry, limestone is the main raw material for the manufacture of cement, lime and calcium carbide, and is an indispensable flux limestone in the metallurgical industry.After being processed by a mill, limestone is widely used in the manufacture of paper, rubber, paint, coatings, medicine, cosmetics, feed, sealing, bonding, polishing and other products. The particle size of the finished limestone powder mill is adjusted in the range of 80-425 mesh, which is widely used in cement plants, power plants and other industries. With the needs of social economy, the application of mills in the limestone production and processing industry has become more and more extensive.
The limestone grinding mills produced by CLIRIK include Raymond mills, micro powder grinding mills, ultrafine mills, three-ring medium-speed micro-grinding mills, etc.Introduction of commonly used CLIRIK limestone grinding mills
1. Raymond mill for limestone
Raymond mill is also called Raymond mill. The CLIRIK mill adopts the advanced structure of similar products at home and abroad, and is updated and improved on the basis of Raymond mills in the same industry. This equipment is more efficient and consumes less electricity than ball mills. , Small footprint, small one-time investment. It is mainly suitable for the high-fine powder processing of non-flammable and explosive materials in mineral, chemical, construction and other industries with Mohs hardness not greater than 9.3 and humidity below 6%. The particle size of the finished product can be adjusted arbitrarily within the range of 80-325 mesh, and some materials can reach up to 600 mesh.
2. Micro powder mill for limestone
Micro-grinding is mainly suitable for the fine powder processing of non-flammable and explosive brittle materials with counterweight, low hardness and Mohs hardness ≤6. It is aimed at the needs of the development of the grinding industry and absorbs new grinding technologies and concepts at home and abroad. The new product with relatively advanced technology level has the advantages of greater grinding pressure, small investment, high profit, large feed size, fine output size, etc. It is an ideal equipment for limestone grinding.
3. Ultrafine grinding mill for limestone
Ultrafine grinding mill, also known as ultra-fine mill, consists of a main machine, a blower, an ultra-fineness analyzer, a finished cyclone powder collector, a bag filter and a connecting air pipe. It is mainly suitable for the grinding of various non-flammable and explosive mineral materials with a humidity below 6% on the Mohs level. The output fineness can reach 3250 meshes. Compared with other grinding equipment, the finished product has a finer particle size. It can be said that superfine grinding is a grinding machine with advanced technology, energy saving and high yield.
4. Three-ring medium-speed micro-powder mill for limestone
Three-ring medium-speed micro-powder mill is also a common equipment for limestone grinding. It is mainly suitable for processing ultra-fine powder of non-flammable and explosive brittle materials with medium and low hardness, Mohs hardness ≤6. It has the performance advantages of high-yield, energy-saving, high product granularity, environmental protection and cleanness, and is an ideal equipment for green and environmental protection.
The working principle of limestone grinding mill
Different limestone grinding mills have different working principles. The specific introduction is as follows:1. The working principle of limestone Raymond mill
When the limestone Raymond mill is working, the material to be crushed is fed into the machine from the feed hopper on the side of the machine casing. It relies on the grinding roller device suspended on the plum blossom frame of the main machine to revolve around the vertical axis and rotate itself at the same time. When rotating, the centrifugal force causes the grinding roller to swing outwards and tightly press on the grinding ring, so that the shovel blade scoops up the material and sends it between the grinding roller and the grinding ring. The material is crushed due to the rolling and rolling of the grinding roller.2. The working principle of limestone micro-powder mill
When the micro powder mill is working, the main machine drives the main shaft and the turntable of each layer to rotate through the reducer, so that dozens of ring rollers roll and rotate in the grinding ring raceway. The bulk material is crushed to the required size by the crusher, and then sent to the storage bin by the elevator, and then sent to the middle of the upper turntable uniformly, quantitatively and continuously by the vibrating feeder. The material is dispersed under the action of centrifugal force. The periphery, falling into the raceway of the grinding ring, is crushed by the ring rollers, stamped, rolled, and ground. After the first layer is crushed, the material falls into the second layer for finer grinding, and then enters the third layer of grinding. , So as to achieve the required particle size.3. The working principle of limestone ultra-fine grinding mill
In the main grinding chamber of the ultrafine mill, the grinding roller assembly is suspended on the grinding roller hanger through the cross arm shaft. The grinding roller hanger is fixedly connected with the main shaft and the blade holder. The pressure spring is tightly pressed against the grinding roller by the tension rod. On the outer end of the cantilever of the roller bearing chamber, with the cross arm shaft as the supporting point, the grinding roller is pressed tightly on the inner surface of the grinding ring by spring pressure. When the motor rotates through the transmission device, the shovel mounted on the shovel holder The knife and the grinding roller rotate synchronously. The grinding roller rotates around itself while rolling on the inner surface of the grinding ring. The analyzer drives the analyzer impeller to rotate through the motor transmission device. The rotation speed of the analyzer determines the fineness of the powder.4. Limestone three-ring medium-speed micro-powder mill
When the three-ring medium-speed micro-powder mill is working, the main machine drives the main shaft and the turntable of each layer to rotate through the reducer, so that dozens of ring rollers roll and rotate in the grinding ring raceway. The bulk material is crushed to the required size by the crusher, and then sent to the storage bin by the elevator, and then sent to the middle of the upper turntable uniformly, quantitatively and continuously by the vibrating feeder. The material is dispersed under the action of centrifugal force. The periphery, falling into the raceway of the grinding ring, is crushed by the ring rollers, stamped, rolled, and ground. After the first layer is crushed, the material falls into the second layer for finer grinding, and then enters the third layer of grinding. , So as to achieve the required particle size. At this time, the suction effect of the high-pressure centrifugal fan sucks the outside air into the machine, and brings the powder after the third layer of pulverization into the powder concentrator. The vortex generated by the rotating worm wheel in the classifier makes the coarse particles fall back and regrind, and the fine powder enters the cyclone powder collector with the airflow and is discharged by the discharge valve at the lower part of the product.Technical parameters of limestone mill
YGM Limestone Raymond Mill
Type Roller Max. feeding size(mm) Fineness(mm) Output(t/h) Power(kw) Size(mm) No. Dimension(mm) Height(mm) YGM7815 3 260 150 15 0.613-0.033 1-3 18.5 4300*3500*5100 YGM8314 3 270 140 20 0.613-0.033 1.2-4.6 22 5300*4100*5200 YGM9517 4 310 170 25 0.613-0.033 2.1-5.6 37 7100*5900*7900 YGM4121 5 410 210 30 0.613-0.033 2.8-10.5 75 9200*7250*9700 MTM1600 6 440 270 35 0.613-0.033 5-20 132 12550*5700*8350
HGM Limestone Micro Powder Grinding Mill
Model
HGM80
HGM90
HGM100
HGM125
HGM168L
Ring Diameter(mm)
800
900
1000
1250
1680
Ring Number (PCS)
3
3-4
4
4
4
Roller Number(PCS)
18-21
24-29
28-36
30-44
30-40
Main Shaft Speed (r. p. min)
230-240
200-220
180-200
135-155
120-130
Input Size (mm)
≤10
≤10
≤15
≤15
≤20
Finished Size (um/mesh)
74-5
(200-2500)
74-5
(200-2500)
74-5
(200-2500)
100-6
(150-2000)
100-9
(150-1500)
Capacity (t/h)
0.4-4.5
0.6-6.5
1-9
2-16
3.8-30
Outlet Size L*W*H (m)
13.9*4*6.2
14.7*4.8*7.2
18*4.6*8.6
14*9*10.25
26.3*7.5*11.9
Limestone mill equipment maintenance
- 1. The refueling time of the main shaft of the limestone mill is once per shift, but it must be noted that if the oil in the oil cup is not lost or the loss is too slow, the oil passage should be cleaned immediately.
- 2. It is strictly forbidden for metal blocks to enter the limestone mill, otherwise it will damage the grinding roller, grinding ring, and even the hanger.
- 3. Feeding should be even, and not over and under. Too much material will block the air duct, reduce the output, and easily burn the motor. Too little material will also feed the output.
- 4. Air volume adjustment: The air volume control valve located on the air inlet pipe of the fan is generally opened to a slightly larger position and adjusted appropriately according to the fineness and output requirements. The regulating valve located on the exhaust pipe of the exhaust gas outlet can be adjusted to the inlet where no dust is sprayed.
- 5. Fineness adjustment: According to the size, hardness, water content, and specific gravity of the material, the processing thickness is also different. The upper analyzer can be adjusted to achieve high speed and high fineness; low speed and low fineness.
- 6. The scrap limit of the grinding ring of the mill roller, the remaining small wall thickness shall not be less than 10mm.
- 7. When stopping, stop feeding first, and the host will continue to grind the remaining abrasive. After about one minute, you can turn off the host motor and analyzer motor, stop the grinding work, and then stop the fan motor.
