System for producing calcium hydroxide through full-negative-pressure calcium oxide digestion

A technology of calcium hydroxide and calcium oxide, which is applied in the system field of full negative pressure calcium oxide digestion and production of calcium hydroxide, can solve problems such as poor fineness and classification, and achieve the effect of ensuring the operating environment

Pending Publication Date: 2019-03-08
江苏省建筑材料研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to address the deficiencies in the prior art and provide a system for the production of calcium hydroxide by full negative pressure calcium oxide digestion, which not only solves the environmental protection problems of the existing traditional positive pressure process, but also reduces the amount of dust emissions The national discharge requirements also solve the problem of poor fineness classification of the coarse and fine powder separator in the existing traditional positive pressure process, so that the fineness of the finished calcium hydroxide can be adjusted arbitrarily from 200 mesh to 800 mesh

Method used

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  • System for producing calcium hydroxide through full-negative-pressure calcium oxide digestion

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Effect test

Embodiment 1

[0014] Such as figure 1 A system for the production of calcium hydroxide by full negative pressure calcium oxide digestion is shown, which consists of a pre-cured and matured component and a separate receiving component used in conjunction with the pre-cured and matured component; the pre-cured and matured component includes a The crusher 2 below the outlet of the belt conveyor 1, the first bucket elevator 4 arranged below the outlet of the crusher 2, and the storage bin 5 arranged below the outlet of the first bucket elevator 4, And be arranged on the first belt scale 6 below the discharge port of the storage bin 5, and be arranged on the first lock fan 7 below the discharge port of the first belt scale 6, and be arranged on the first lock fan 7 below the discharge port Preheater 8, and the water tank 9 that is connected with preheater 8, wherein, the water pipe that preheater 8 is connected with water tank 9 is provided with water pump 11, flowmeter 10, and the ripening that...

Embodiment 2

[0016] Such as figure 1 A system for the production of calcium hydroxide by full negative pressure calcium oxide digestion is shown, which consists of a pre-cured and matured component and a separate receiving component used in conjunction with the pre-cured and matured component; the pre-cured and matured component includes a The crusher 2 below the outlet of the belt conveyor 1, the first bucket elevator 4 arranged below the outlet of the crusher 2, and the storage bin 5 arranged below the outlet of the first bucket elevator 4, And be arranged on the first belt scale 6 below the discharge port of the storage bin 5, and be arranged on the first lock fan 7 below the discharge port of the first belt scale 6, and be arranged on the first lock fan 7 below the discharge port Preheater 8, and the water tank 9 that is connected with preheater 8, wherein, the water pipe that preheater 8 is connected with water tank 9 is provided with water pump 11, flowmeter 10, and the ripening that...

Embodiment 3

[0018] Such as figure 1 A system for the production of calcium hydroxide by full negative pressure calcium oxide digestion is shown, which consists of a pre-cured and matured component and a separate receiving component used in conjunction with the pre-cured and matured component; the pre-cured and matured component includes a The crusher 2 below the outlet of the belt conveyor 1, the first bucket elevator 4 arranged below the outlet of the crusher 2, and the storage bin 5 arranged below the outlet of the first bucket elevator 4, And be arranged on the first belt scale 6 below the discharge port of the storage bin 5, and be arranged on the first lock fan 7 below the discharge port of the first belt scale 6, and be arranged on the first lock fan 7 below the discharge port Preheater 8, and the water tank 9 that is connected with preheater 8, wherein, the water pipe that preheater 8 is connected with water tank 9 is provided with water pump 11, flowmeter 10, and the ripening that...

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Abstract

The invention belongs to the technical field of calcium hydroxide preparation and application, and particularly discloses a system for producing calcium hydroxide through full-negative-pressure calcium oxide digestion. The system comprises a pre-curing component and a separate collection component used cooperatively with the pre-curing component. The system for producing the calcium hydroxide through full-negative-pressure calcium oxide digestionhas the advantages that full-negative-pressure operations are applied in the whole processto keep the operating environment clean andensure that dustemission reaches the national emission standard; through classification by a separator, the fineness of a finished product can be optionally adjusted from 200 meshes to 800 meshes.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of calcium hydroxide, and in particular relates to a system for producing calcium hydroxide by digestion of calcium oxide under full negative pressure. Background technique [0002] In the prior art, the general calcium hydroxide production process adopts positive pressure operation, and the calcium oxide is measured by the electronic belt scale and the water measured by the flow meter enters the digester together for digestion, and the digested Ca(OH)2 powder is produced by The tubular screw conveyor and the air lock valve are sent to the high-pressure fan, and the high-pressure fan is sent to the coarse powder separator and the analysis machine for winnowing. The fine powder whose particle size meets the requirements is collected by the fine powder collector to the finished product storage bin. Due to the positive pressure operation, the amount of dust in the production proce...

Claims

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Application Information

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IPC IPC(8): C04B2/08
CPCC04B2/08
Inventor 李海豹吴志芳高维斌陈杨峰蒋松武
Owner 江苏省建筑材料研究设计院有限公司
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