Superfine vertical mill for calcium hydroxide
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Superfine vertical mill for calcium hydroxide
DEVICE DETAILS:
Superfine vertical mill for calcium hydroxide / calcium oxide is large-scale non-metal mineral superfine powder mill developed by Superfine vertical mill for calcium hydroxide / calcium oxide and introduction of foreign advanced technology. Superfine vertical mill for calcium hydroxide / calcium oxide applied static and dynamic classifier, product fineness can be adjusted between 325 mesh to 2500 mesh (5μm-10μm), maximum capacity reach 20t/h. The equipment is widely applied in non-metal mineral superfine powder processing, such as limestone, calcite, marble, coarse whiting, kaolin, barite, bentonite, pyrauxite. It is a high efficiency and low cost powder processing equipment.
TECHNICAL PARAMETERS:
SPECIFICATION AND TECHNICAL PARAMETER FORM OF HLMX ULTRA-FINE VERTICAL MILL (DESULFURATION LIMESTONE PLANTS)
| Model | Grinding TableDiameter(mm) | Capacity(t/h) | MaterialMoisture | Fineness | Power(kw) |
|---|---|---|---|---|---|
| HLMX1000 | 1000 | 3-12 | <5% | 0.045mm-0.01mm0.005mm(with secondary classifier) | 110/132 |
| HLMX1100 | 1100 | 4-14 | <5% | 185/200 | |
| HLMX1300 | 1300 | 5-16 | <5% | 250/280 | |
| HLMX1500 | 1500 | 7-18 | <5% | 355/400 | |
| HLMX1700 | 1700 | 8-20 | <5% | 450/500 | |
| HLMX1900 | 1900 | 10-25 | <5% | 560/630 | |
| HLMX2200 | 2200 | 15-35 | <5% | 710/800 | |
| HLMX2400 | 2400 | 20-40 | <5% | 1120/1250 |
Note:Raw Materials bond index<=13kWh/t.
ADVANTAGE:
1. Higher Pulverizing and Separating Efficiency:
(1) The grinding curves of the roller shell and liner plate are uniquely designed based on the ultrafine powder pulverization. The material bed can be formed easily so as to increase the grinding efficiency and the ratio of the finished powder product from the primary grinding.
(2) The largest output is 40t/h, which is equal to 5 ultra-fine mills, off-peak power can be used.
(3) Adopting the principle of muti-rotor classifier, the product fineness can be easily and efficiently adjusted among the selected fineness range. HLMX series ultrafine vertical mill saves energy by 30%-50% compared to a common type ultrafine mill when producing the powder of the same fineness.
2. Easy Maintenance and Lower Operation Cost:
(1) The roller can be pulled out by the hydraulic device, which is convenient for plate-replacement and bigger maintenance space.
(2) Left and right side of the roller cover can both be used for prolonging the working life.
(3) Without raw material on the grinding table, the mill can run, which erases the difficulty in starting.
(4) The roller and grinding table are made from special material for longer working life.
3. Lower Investment:
(1) Combination of crushing, drying, grinding and conveying, simple process flow, reasonable and compact layout, space-saving (50% less than ball mill), lower foundation cost and workshop cost in the field.
4. Stable and Good Powder Quality:
(1) The materials bed pulverization principle reduces the duration of the materials retention in the mill and the repeated grinding, which is easy for the powder fineness and components analysis. Moreover, there is less tramp iron in the end powder product, increasing the whiteness and purity of the end powder product.
(2) Regular powder shape, narrow size fineness, easy fluidity, extensive application.
(3) During the grinding, adding a small amount of additive that will not adversely affect the quality of finished powder product is capable of remarkable improving the added value of the finished powder product.
5. Reliability:
(1) The mechanical limit device for the roller is capable of being adjusted so as to ensure the safety clearance between the roller shell and the liner plate on the grinding plate. This effectively removes the possibility of the materials feeding interruption thus fierce vibration and destructive impact and maintains the safe an economical operation of the mill.
(2)Newly-designed roller sealing component ensures the reliable sealing without sealing the fan, which can lower the oxygen content in the mill to prevent the possibility of explosion.
6. Environment-friendly:
(1) Lower vibration and noise
(2) Perfect sealing and negative pressure guarantees no air pollution in the workshop.
(3)Vertical mill is the better equipment to lower power consumption in the mill industry, which is also what the country advocate and a must to increase the enterprise competitiveness in China powder industry.
7. High Automatic Level:
(1) PLC automatic control system enables remote control and easy operation and maintenance, which lower the labor cost.
WORK PRINCIPLE:
The motor drives the reducer to rotate the millstone, the raw material is sent into the center of the millstone from the air lock rotary feeder. Under the effect of centrifugal force, the material moves to the edge of the millstone. Material than be ground by the force of the roller and smashed under extrusion, grinding and cutting. At the same time, air is blew up around the millstone and bring up the ground material. The air will blow the coarse material back to the millstone. The fine powder will be brought to the classifier, and then, the qualified fine powder will flow out the mill and be collected by dust collector, other coarse powder will be brought down to the millstone by the blade of classifier and be ground again. The circulation like this is the overall process of grinding.
When moving together with the materials to the fridge of the grinding plate, due to its weight, the tramp iron cannot be raised by air flow but falls into the lower mill chamber and then is scraped into the slage outlet to be discharged by the scraping plate. This efficiently ensures the quality of finished powder product.
Rotor speed of the multi-rotor classifier is easy to adjust to achieve conforming powder products of various fineness.