Limestone powder grinding line

Limestone powders can be used to produce glass and cement after being primarily crushed by crusher and grinded by grinding mill. can be used to produce glass and cement. Limestone can also be burned to produce high purity calcium carbonate powders. The powder can serve as filler of rubber, plastic, paper, toothpaste and cosmetics.

Limestone grinding machine

Crusher is an important facility for the limestone powder production line. The newly-developed crusher can change the particle size to produce limestone-made raw material for various usages.

Grinding mill is another crucial facility in processing limestone. The newly-developed grinding mill can change the fineness of produced materials and offer particles ranging from 325 to 3000 mesh. The large and environment-friendly grinding mill production line can be assembled with the following machines: LM Vertical Mill, MTW European Trapezium Grinding Mill, High Pressure Suspension Grinding Mill, Raymond Mill, Trapezium Grinding Mill, Super Thin Grinding Mill and Coarse Powder Mill. The production line features high efficiency and energy conservancy.

Composition of limestone grinding

Limestone grinding and processing equipments consists of the following machines: hammer crusher, bucket elevator, storage area, vibrating feeder, the main unit of ultrafine mill, frequency conversion classifier, double cyclone powder collector, pulse cleaning system, high pressure blower and electrical control system.

Features of the limestone grinding line

1. High efficiency and energy conservancy
   The productivity of the grinding mill doubles that of the jet mill, stirred mill and ball mill when they are equal in product fineness and motor power.
2. More enduring wear part
   The grind roller and ring are made by special material, thus significantly increasing its life. The wear part lasts two to five times longer than that of the impact crusher or turbo mill when processing the same materials into the same fineness. It usually could work over a year and even two to five years if used to process calcium carbonate and calcite.
3. Safe and reliable
4. Enhanced fineness processing capability
5. Environment-friendly and clean
   The grinding mill adopts pulse cleaner to collect dusts and muffler to reduce noises, featuring environment protection and cleanness.

working process of limestone powder grinding

When the machine turns on, the motor of the main unit will drive the main shaft and rotary table to rotate through a reducer. The roll pin on the edge of the rotary table will drive dozens of rollers to roll in the ring.

Large materials will be crushed by the hammer crusher into small particles and transferred to the storage area. Then the vibrating feeder will send the materials through an inclined feeding pipe onto the table for scattered material, which is on the upper deck of the rotary table.

Materials will be pushed to the edge of the table by centrifugal force and fall into rings located at three different levels. There the rollers will grind the materials into powders by crushing and rolling on them. Then, the high pressure blower will draw air inside by suction effect and send the powders to the powder concentrator.

The rotating impeller inside the powder concentrator will return coarse materials to the table for regrinding. And the qualified powders, driven by airflow, will get into the whirlwind powder collector. Then powders will be released by a discharge valve at the bottom of the collector and become finished products.The airflow, carrying a few powders, will be cleaned by the pulse cleaner and then discharged by the blower and muffler.

Limestone processing plant

1. Limestone mining
2. Limestone crushing
3. Limestone grinding