What Is The Technological Process Of Industrial Production Of Calcium Carbonate


Summary:Heavy calcium carbonate and light calcium carbonate have the same organic chemical formula and similar appearance. In essence, they are quite different in terms

Heavy calcium carbonate and light calcium carbonate have the same organic chemical formula and similar appearance. In essence, they are quite different in terms of their physical and chemical properties or production and processing methods. The production and processing of heavy calcium carbonate is mainly realized by mechanical crushing and grinding; the production and manufacture of light calcium carbonate is prepared according to chemical reaction precipitation. The latter process is much more complicated than the former, and the requirements are correspondingly stricter.

After the marble ore is transported into the factory by car, it is loaded into the vibrating ore washing machine with a forklift. After washing the ore through the spray water pipe and high-pressure water gun, it enters the crushing system. The automatic feeder feeds the jaw crusher quantitatively. The ore enters the high-fine hammer crusher and is finely crushed to generate crushed stone of about 10mm. Then it is transported by the bucket elevator to the vibrating screen at the top of the raw material silo for screening. The qualified small-grained gravel directly enters the raw material silo, and the large-grained gravel slips back to the crusher along the inclined pipe to be broken again.

The crushed stone in the raw material warehouse is sent to the semi-finished product warehouse by the belt conveyor. In the semi-finished product warehouse, use a forklift to load the gravel shovel to the discharge port of the ball mill and the vertical mill respectively. After entering the hopper, the crushed stone is transported to the ball abrasive bin and the vertical grinding bin by the elevator, and then sent to the ball mill and the vertical mill by the screw conveyor, and is fully mixed with the grinding aid diethylene glycol added here. powder.

After that, the quantitative feeder feeds the ultra-fine classifier respectively, and performs classification, and adjusts the number of product meshes according to customer needs. The coarse powder under classification is sent back by the screw conveyor, and then enters the mill for grinding again. Qualified products are directly collected by the high-pressure pulse dust collector together with the airflow. The products are discharged from the feeder of the dust collector and directly enter the baler or the feeding port for packaging. There are two types of packaging: small bag packaging and large bag packaging.

Calcium carbonate ore is coarsely crushed. When the calcium carbonate ore is roughly crushed, due to the open operation of the workplace or the poor sealing performance of the equipment, the dust removal effect of the bag filter used by most enterprises is not ideal and lacks maintenance. There is dust, diffusion and overflow of calcium carbonate dust, causing environmental pollution in the workplace.

Material delivery. After the calcium carbonate ore is roughly crushed, it needs to be transported to the designated location by vehicles or conveyor belts. During the process of calcium carbonate ore blanking and conveyor belt catching, due to the action of gravity and wind, calcium carbonate dust is very easy to escape and diffuse; in material transportation, Especially at the transfer point of materials, due to the poor opening or sealing effect of the transmission equipment, there is serious calcium carbonate dust pollution.

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