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Micro and nano-grade light calcium carbonate tube-condensation-type double-circulation multi-level carbonation system

A light calcium carbonate, tube condensation technology, applied in the direction of calcium carbonate/strontium/barium, nanotechnology, nanotechnology, etc. The effect of carbonization efficiency, prolonging maintenance period and reducing labor intensity

Inactive Publication Date: 2013-02-20
SICHUAN HAIYA POWDER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The continuous spray carbonization method uses calcium hydroxide emulsion atomized as the dispersed phase for carbonization reaction, which greatly increases the gas-liquid contact area, and a large number of crystal nuclei are easy to form in the early stage of the reaction. This method has strong continuity, but the technology is more complicated and the operation is difficult. Large, the nozzle is easy to block, so the application part is common
Hypergravity reaction is still a batch production method, with complex technology, high energy consumption, small output, and large equipment investment

Method used

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  • Micro and nano-grade light calcium carbonate tube-condensation-type double-circulation multi-level carbonation system
  • Micro and nano-grade light calcium carbonate tube-condensation-type double-circulation multi-level carbonation system

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing, protection scope of the present invention is not limited to the following:

[0013] Such as figure 1 Shown, micro and nanoscale light calcium carbonate column and tube condensing double cycle multistage carbonization system, it comprises at least three carbonization towers 1 connected in series, and be provided with slurry groove 2 between adjacent carbonization towers 1, described The carbonization tower 1 includes a high-pressure pump 3, a spray mist making device 4, a tower body 5, a condensation tube 6, an air compressor 7, a gas separator plate 8, a refrigerator 9, and a liquid and scale removal device 10, and the tower body 5 A tail gas outlet 11 is provided above the tower body 5, a liquid outlet 12 is provided below the tower body 5, a high-pressure pump 3, an air compressor 7 and a refrigerator 9 are all arranged outside the tower body 5, and the condensation tube 6 ...

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Abstract

The invention discloses a micro and nano-grade light calcium carbonate tube-condensation-type double-circulation multi-level carbonation system. The system comprises at least three carbonization towers (1) connected in series. A slurry tank is provided between each two adjacent carbonization towers (1). A carbonization tower (1) comprises a high-pressure pump (3), a spraying mist-making device (4), a tower body (5), condensing tubes (6), an air compressor (7), a gas plate (8), a refrigerator (9), and an accumulated liquid and scale removing device (10). The condensing tubes (6) are connected with the refrigerator (9). The spraying mist-making device (4) is connected with the high-pressure pump (3). The gas plate (8) is connected with the air compressor (7). The accumulated liquid and scale removing device (10) is sleeved on the outside of the condensing tubes (6). The system provided by the invention has the advantages that: spraying and a high-liquid-level bubbling carbonization method are adopted, continuity is high, and carbonization efficiency is high. The condensing tubes are added, such that the reaction temperature in the tower can be conveniently controlled. The accumulated liquid and scale removing device is provided, such that condensing tube scale can be conveniently removed.

Description

technical field [0001] The invention relates to the technical field of calcium carbonate production equipment, in particular to a micro and nanoscale light calcium carbonate column-tube condensation double-cycle multi-stage carbonization system. Background technique [0002] The carbonization process is the most basic and critical process in the production process of ultrafine calcium carbonate. At present, the carbonization process mainly adopts intermittent bubbling carbonization method, intermittent stirred tank carbonization method, continuous spray carbonization method and high gravity reaction crystallization valve. Intermittent bubbling carbonization method and intermittent stirred tank carbonization method are the most widely used methods in China at present. On the basis of the production of light calcium carbonate, the carbonization temperature is controlled by refrigeration, and the crystal form of the product is controlled by adding appropriate additives. particl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18B82Y30/00
Inventor 周安虎杨跃渝
Owner SICHUAN HAIYA POWDER TECH CO LTD
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