A kind of calcium carbonate powder grinding device

Abstract

The invention discloses a grinding device for calcium carbonate powder. The grinding device comprises a casing, wherein a feeding inlet is arranged on the casing; and the feeding inlet is connected with a screw feeder. The grinding device is characterized by further comprising a cyclone separator and a heater. The casing is internally and sequentially provided with a guiding plate, a first grinding sieve plate and a second grinding sieve plate from top to bottom, and the guiding plate, the first guiding sieve plate and the second grinding sieve plate divide the interior of the casing into fourareas; the four areas sequentially include the smashing area, the first grinding area, the second grinding area and the storage area from up to down; the smashing area is internally provided with a smashing device; the first grinding area is provided with a first grinding device; the second grinding area is provided with a second grinding device; the four areas communicate with the cyclone separator; the cyclone separator is connected with the heater; and an outlet of the heater communicates with the four areas. The grinding device can smash and then grind calcium carbonate, dry the powder during grinding, and effectively prevent the dust in the grinding device from leaking.

Description

technical field [0001] The invention relates to the technical field of calcium carbonate crushing and grinding, in particular to a calcium carbonate powder grinding device. 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, ...

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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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