Intelligent ecological resource utilization production method of light-weight calcium carbonate

Abstract

The invention discloses an intelligent ecological resource utilization production method of light-weight calcium carbonate. By a carbonization production method, limestone and other raw materials arecalcined to produce lime and carbon dioxide, then water is added for slaking the lime to produce lime milk, and then the carbon dioxide is inflated for carbonizing the lime milk to produce a calcium carbonate precipitate, and finally the calcium carbonate precipitate is dehydrated, dried and pulverized to obtain the light-weight calcium carbonate; the intelligent ecological resource utilization production method is characterized in that in the calcining production process, materials are automatically fed into a calcining furnace in an elevator way, and the materials are discharged from the lower part of the calcining furnace in a swinging way; in the dehydrating and drying process, a rice husk combusting furnace is used for producing hot air for drying, comprehensive utilization of afterheat of the hot air is achieved in a multi-layer circulating way, and flue gas produced by combustion of rice husk is settled for pollution-free discharge so as to achieve intelligent ecological resource utilization production of the light-weight calcium carbonate.

Description

technical field [0001] The invention relates to a production method of light calcium carbonate, in particular to a production method of light calcium carbonate with intelligent control and ecological resource utilization, the production method of light calcium carbonate is more energy-saving, environmentally friendly and resource-saving, And realizing intelligent control, it belongs to the technical field of light calcium carbonate production. Background technique [0002] Light Calcium Carbonate (Light Calcium Carbonate) is also called Precipitated Calcium Carbonate (PCC for short). As a filler with a wide range of uses, light calcium carbonate is widely used in plastics, rubber, papermaking, coatings, and pharmaceutical and food industries. The domestic demand alone is more than 10 million tons per year, and it is an industry with an output value exceeding 10 million tons. A billion-dollar industry. The production of light calcium carbonate is divided according to the ca...

AI Technical Summary

Problems solved by technology

[0009] The object of the invention of the present invention is to propose a new production method of light calcium carbonate in view of the problems of high energy consumption, high labor intensity in the production process, and relatively large environmental pollution in the current production method of light calcium carbonate. The production method of calcium carbonate can greatly reduce the energy consumption of production, and can effectively realize intelligent and ecological operations, reduce energy consumption, reduce labor intensity, eliminate environmental pollution, and achieve the purpose of clean and environmentally friendly production methods