Bluestone Powder Vertical Mill

Bluestone Powder Vertical Mill

Ring gauge height directly affects the stability and efficiency of the mill grinding material layer. Ring gauge height is too high, is not conducive to the material grinder on spillover, causing thickening of the bed, in the finished part of the qualified material stream bed can not be taken in a timely manner, resulting in excessive grinding; height gauge ring is too low, the powder spill faster, causing the bed is too thin, resulting in the roller mill can not be pressurized or cause vibration. According commissioning experience, vertical mill in the production of heavy calcium powder 600 mesh, in order to ensure the effectiveness of grinding, grinding of materials into the grinder needs a certain residence time, height gauge ring generally set at 30 ~ 50mm is appropriate.

Rollers and disc wear

According bluestone powder vertical mill project situation, after a long time when the mill is running, the mill capacity will have a certain degree of decline, mainly due to wear and tear caused by the disc and roller, resulting in grinding disc structure roller grinding area, polishing pressure have changed. The first stage, coarse grinding roller tray: Due to centrifugal force, the materials fall into the center of the disc is biting the lower edge of the roller to complete the further crushing and coarse grinding; the second stage, compaction: to be coarsely ground material due to centrifugal force continue to move to the outer edge of the disc, gradually compacted; the third stage, finely ground area: this area is the smallest roller disc space, the compacted material layer is completed finely ground under high pressure, with the wind ring is spillover to the airflow at the separator Separators become qualified products.

After the three-stage roller pad gap increases, the lack of effective new material into the mill crushing and coarse grinding, fine grinding and compacting into the area, the high pressure grinding roll and can not be completely transferred to the material layer, reach efficient grinding, it is difficult to generate enough fines, while wear because each region varies, causing instability in the material layer, mill run limited. Roller pad wear problems for fineness demanding finished, the production capacity plunged more likely to reflect. At this point, it should be adjusted to the roller sleeve surface treatment, re-surfacing (surfacing roller sleeve applicable), or replace the roller sleeve and disc liner (capacity reduced by more than 10% of the above measures should be considered). Experience and careful vertical mill operators, skilled coordinate the various process parameters, is the key to stable operation of the mill stand. Vertical milling machine optimized for the operation of non-metallic mineral powder industry demonstrated its dual characteristics of fine-scale production and processing, and gradually adapt to the future trends in the field of non-metallic mineral powder, its excellent performance led to the powder technology upgrades body processing equipment, which will help enhance the value of the level of non-metallic mineral powder economy.

Transformation bluestone powder vertical mill system

Bluestone powder vertical mill transformation should include: using the original raw material pre-homogenization depot, warehouse raw ingredients, feed belt system (alone saving equipment investment of about 500 million); removal of the original cyclone dust collector and circulation fan, the new high concentration of circulating air box pulse dust collector and fan; the original raw meal silo ore to finished products, including new pneumatic conveying equipment in its library at the end, the finished ore delivered to the mine powder ingredients library. The other two new clinker and slag powder metering device in the library at the end of slag ingredients are mixed in proportions to form the final product. Slag grinding system production process after the transformation is: slag ingredients from stations in the vertical mill drying, grinding and separator, sorted coarse powder returned to the mill, a high concentration of powder into the air in the bag filter, dust accept (is finished) transported by air chute, hoist, and other slag powder into finished products (the former homogenizing silo) within the reservoir. The transformation of bluestone powder vertical mill project, the main focus is the transformation of the raw material vertical mill transformed into slag vertical mill.

Equipment

B6X Belt Conveyor
B6X Belt Conveyor
XSD Sand Washer
XSD Sand Washer
F5X Vibrating Feeder
F5X Vibrating Feeder
S5X Vibrating Screen
S5X Vibrating Screen
K Track-type Mobile Crusher
K Track-type Mobile Crusher

Solutions

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