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Preparation method and preparation device of calcium hydroxide with high dispersibility and high specific surface area

A high specific surface area, calcium hydroxide technology, applied in the direction of calcium/strontium/barium oxide/hydroxide, etc., can solve the problems of low grinding degree, low dispersion, low specific surface area, etc., to improve product quality, Effects of improving dispersibility and specific surface area, and deepening the degree of grinding

Pending Publication Date: 2022-06-21
衢州顺天钙业有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the low degree of powder grinding in the production process, general calcium hydroxide has the characteristics of low dispersion and low specific surface area, which affects the use effect of calcium hydroxide

Method used

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  • Preparation method and preparation device of calcium hydroxide with high dispersibility and high specific surface area
  • Preparation method and preparation device of calcium hydroxide with high dispersibility and high specific surface area
  • Preparation method and preparation device of calcium hydroxide with high dispersibility and high specific surface area

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] see Figure 1-Figure 6 , the present invention provides a kind of technical scheme:

[0035] A preparation method of calcium hydroxide with high dispersibility and high specific surface area, comprising:

[0036] S1, calcination, put limestone raw material into lime kiln for calcination, after calcination is finished, take out and sort out calcined finished calcium oxide;

[0037] S2, digestion, take an appropriate amount of ...

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Abstract

The invention discloses a preparation method and a preparation device of calcium hydroxide with high dispersibility and high specific surface area, and the preparation method comprises the following steps: S1, calcining: putting a limestone raw material into a lime kiln for calcining, taking out after calcining, and sorting out a calcined finished product calcium oxide; s2, digestion: mixing a proper amount of water with the calcium oxide obtained in S1 to obtain a mixed solution; s3, stirring: stirring the mixed solution by using a stirrer to obtain calcium hydroxide feed liquid; s4, purification and separation; large-particle calcium hydroxide solids are blocked on the filter screen through the filter screen, the motor drives the fan blades to generate negative pressure, the large-particle calcium hydroxide solids are sucked and automatically put into the grinding box again to be ground, and therefore the grinding degree of calcium hydroxide is increased, the dispersity of calcium hydroxide is improved, and the specific surface area of calcium hydroxide is increased. Meanwhile, the invention also provides a preparation method of calcium hydroxide by using the grinding preparation device, and the product quality can be improved by using the preparation device.

Description

technical field [0001] The invention relates to the technical field of calcium hydroxide preparation, in particular to a preparation method of calcium hydroxide with high dispersibility and high specific surface area and a preparation device thereof. Background technique [0002] Calcium hydroxide is an inorganic compound commonly known as slaked lime or slaked lime. It is a white powdery solid. After adding water, it is divided into upper and lower layers. The upper aqueous solution is called clarified lime water, and the lower suspension is called lime milk or lime slurry. The supernatant clear lime water can test carbon dioxide, and the lower turbid liquid lime milk is a building material. Calcium hydroxide is a strong alkali, which has bactericidal and antiseptic properties, and has a corrosive effect on skin and fabrics. Calcium hydroxide is widely used in industry. It is a commonly used building material, and is also used as a fungicide and chemical raw materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/06C04B2/02C04B2/12
CPCC01F11/06C04B2/02C04B2/12
Inventor 童斌
Owner 衢州顺天钙业有限公司
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