A production device for heavy calcium carbonate

Abstract

The invention provides a production device of heavy calcium carbonate. The production device comprises a crusher, a cleaning mechanism, a pulverizer, a screening mechanism, a first iron removing mechanism, a grinding machine and a second iron removing mechanism, wherein the crusher and the pulverizer are used for conveying materials through a first conveying belt, and the first conveying belt penetrates through the cleaning mechanism; the pulverizer and the screening mechanism are used for conveying materials through a second conveying belt, the screening mechanism is provided with a coarse grain outlet and a fine grain outlet, the coarse grain outlet and the crusher realize material conveying through a third conveying belt, and the fine grain outlet and the first iron removing mechanism are used for conveying materials through a fourth conveying belt, the first iron removing mechanism and the grinding machine are used for conveying materials through a fifth conveying belt, and the grinding machine and the second iron removing mechanism are used for conveying materials through a sixth conveying belt. According to the production device, the structure is novel, the raw materials forproducing the heavy calcium carbonate can be cleaned, the influence of the sludge on the product quality can be reduced, a double-weight iron removal step is adopted, so that the iron content of the heavy calcium carbonate product is reduced, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of heavy calcium carbonate production equipment, more specifically, to a production device for heavy calcium carbonate. Background technique [0002] Heavy calcium carbonate, referred to as heavy calcium, is a commonly used powdered inorganic filler. It has high chemical purity, high inertness, difficult chemical reaction, good thermal stability, no decomposition below 400°C, high whiteness, low oil absorption, Low refractive index, soft, dry, no crystal water, low hardness, small abrasion value, non-toxic, tasteless, odorless, good dispersibility, etc.; [0003] In the prior art, the method of physical grinding is generally adopted to grind natural carbonate minerals such as calcite, marble, and limestone; the purity of the product mainly depends on the impurity content of the ore itself, and the general heavy calcium carbonate raw ore contains a small amount of In the continuous production of heavy calcium carbonat...

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Problems solved by technology

[0003] In the prior art, the method of physical grinding is generally adopted to grind natural carbonate minerals such as calcite, marble, and limestone; the purity of the product mainly depends on the impurity content of the ore itself, and the general heavy calcium carbonate raw ore contains a small amount of In the continuous production of heavy calcium carbonate, the iron removal process is rarely carried out, or the iron powder is removed by a general horizontal iron remover, which is prone to uneven iron removal and unclean iron removal, which affects heavy The quality of high-quality calcium carbonate products; and the raw materials are easily attached to sludge impurities during the handling process, and the existing heavy calcium carbonate production equipment also directly ignores the sludge cleaning step, resulting in poor product quality of heavy calcium carbonate produced in the follow-up

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