Overview of Calcite Grinding MachineMainly suitable for ultrafine powder processing of non flammable and explosive brittle materials with medium and low hardness and Mohs hardness ≤ 6, such as calcite, chalk, limestone, dolomite, carbon black, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, zeolite, gypsum, alum, graphite, fluorite, phosphate rock, potassium ore, pumice and more than 100 other materials. The particle size of fine powder products can be adjusted freely between 325-3000 mesh, and the output can reach 0.4-4.5 tons per hour.

Composition of Calcite Grinding Machine EquipmentThe complete configuration includes a hammer crusher, bucket elevator, storage bin, vibrating feeder, micro powder mill host, variable frequency classifier, dual cyclone powder collector, pulse dust removal system, high-pressure fan, air compressor, and electrical control system.

Working principle of calcite mill:

During operation, the main motor drives the spindle and turntable to rotate through a reducer, and the roller pins on the edge of the turntable drive dozens of grinding rollers to roll in the grinding ring raceway. Large pieces of material are crushed into small particles by a hammer crusher and then sent to the storage bin by a hoist. After passing through a vibrating feeder and an inclined feeding pipe, the material is evenly delivered to the upper part of the turntable's bulk tray. The material disperses around the circumference under the action of centrifugal force and falls into the raceway of the grinding ring, where it is impacted, rolled, and ground by the ring rollers. After being processed into powder through three layers of raceway, the high-pressure fan sucks in external air into the machine through suction and brings the crushed material into the powder selection machine. The rotating impeller inside the powder selector causes the coarse material to fall back and be re ground. The fine powder that meets the requirements enters the cyclone powder collector with the airflow and is discharged by the discharge valve at the bottom, which is the finished product. The airflow with a small amount of fine dust is purified by the pulse dust collector and discharged through the fan and muffler.

Performance characteristics of calcite mill：

1. * ***

When the fineness of the finished product and the power of the motor are the same, the output is more than twice as high as that of the air flow mill, stirring mill, and ball mill.

2. Long service life of vulnerable parts

The grinding roller and grinding ring are forged from special materials, greatly improving their utilization. Under the same fineness of materials and finished products, the service life of worn parts is 2-5 times longer than that of impact crushers and turbine crushers, generally reaching more than one year. When processing calcium carbonate and calcite, the service life can reach 2-5 years.

3. High safety and reliability

Due to the absence of rolling bearings and screws in the grinding chamber, there is no problem of bearings and their seals being easily damaged, and there is no problem of screws becoming loose and damaging the machine.

4. High fineness of the product

The fineness of HGM tricyclic medium speed ultrafine powder grinding products can reach D97 ≤ 5 μ m in one go.

5. Environmental protection and cleanliness

Using a pulse dust collector to capture dust and a muffler to reduce noise, it has the characteristics of environmental protection and cleanliness.

Compared with HGM8021 calcite mill, the output has significantly increased.

Technical parameters of calcite mill: