Continuous treatment system and method for basic magnesium carbonate wet material

Abstract

The invention discloses a continuous treatment system and method for a basic magnesium carbonate wet material. The system comprises a drying device and a crushing device, wherein the drying device comprises a thermal medium unit, a rotary flash drying tower and a first dust remover; and the crushing device comprises a first surge bin, a vibrating screen positioned at the lower part of the first surge bin, a jet mill connected with the vibrating screen, and a second dust remover connected with the upper part of the jet mill, wherein the drying device adopts a rotary flash drying tower to dry a wet material, and then the wet material is conveyed to the first dust removal device for gas-solid separation; after gas separation, the solid is cached through a first surge bin in the crushing device and enters a vibrating screen for coarse filtration, then a jet mill is adopted for crushing, and the crushed material is subjected to gas-solid separation through a second dust remover. According to the invention, the continuous treatment of drying and crushing the basic magnesium carbonate wet material can be realized, the continuity and stability of the production process are ensured, and the whole treatment process is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of basic magnesium carbonate treatment, in particular to a continuous processing system and method for basic magnesium carbonate wet materials. Background technique [0002] Basic magnesium carbonate (MgCO 3 ·Mg(OH) 2 ) is an important inorganic chemical material with good filling, dispersibility and fluidity. It is an excellent filler and reinforcing agent for rubber, plastic and other products. It can be used as a thermal insulation and high temperature resistant fireproof insulation material and coating Additives in toothpaste, cosmetics, medicine, etc. The finer the particle size of basic magnesium carbonate, the more stable the quality of paint products, toothpaste, etc. can be guaranteed. [0003] Basic magnesium carbonate is obtained through a series of treatment processes such as drying and crushing wet materials. Most of the drying methods in the prior art use a rotary kiln. The production proce...

AI Technical Summary

Problems solved by technology

Most of the drying methods in the prior art use a rotary kiln. The production process is to directly put the filter cake with a water content of about 20% to 40% into the rotary kiln, and use electricity, gas, coal tar fuel, etc. to directly or indirectly heat it. Long reaction time, large energy consumption, serious environmental pollution

In addition, the traditional crushing-packaging device cannot be fully enclosed, so the dust pollution in the workshop is also relatively serious

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