Grinding method for calcium carbonate powder

Abstract

The invention discloses a grinding method for calcium carbonate powder. The grinding method includes the steps that through a spiral feeding machine, calcium carbonate is sent into a smashing area ofgrinding devices and smashed in the smashing area through a smashing device; after smashing, the calcium carbonate enters into a first grinding area, is subjected to primary grinding through the firstgrinding device, then enters into a second grinding area, is subjected to secondary grinding through the second grinding device, and finally enters into a storage area to be stored; and in the process, the air heated by a heater enters into the smashing area, the first grinding area, the second grinding area and the storage area to heat and dry the calcium carbonate. By drying the calcium carbonate during the process of smashing and grinding, it is ensured that the calcium carbonate powder does not leak and the calcium carbonate is collected according to different grades.

Description

technical field [0001] The invention relates to calcium carbonate grinding technology, in particular to a calcium carbonate powder grinding method. Background technique [0002] Calcium carbonate is an inorganic compound, commonly known as: limestone, limestone, stone powder, marble, etc., the main component: calcite, is a compound, neutral, basically insoluble in water, soluble in hydrochloric acid. It is a common substance on the earth. It exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks. It is also the main component of animal bones or shells. Calcium carbonate is an important building material and has a wide range of industrial uses. Calcium carbonate is formed by the combination of calcium ions and carbonate ions, so it is both calcium salt and carbonate. Among them, ultrafine ground calcium carbonate can be combined with modern polymer matrix composite materials, plastics, rubber, adhesives, paints, coatings, High-grade paper, fillers...

AI Technical Summary

Problems solved by technology

[0003] In the production process, for the convenience of subsequent processing, the calcium carbonate needs to be crushed, and the calcium carbonate is processed into powder by the grinding device after crushing, but it is very easy to generate dust in the grinding device during the grinding process, and it is easy to leak into the In the atmosphere, the atmosphere is polluted, and, in the existing technology, grinding and drying are generally carried out separately, that is, first drying and then grinding, or first grinding and then drying, the processing process is troublesome, and the carbonic acid cannot be simultaneously Calcium is crushed, ground and dried

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