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Carbon dioxide recovery chamber type lime shaft furnace

A carbon dioxide, recovery chamber technology, applied in lime production, inorganic chemistry, carbon compounds, etc., can solve problems such as losses, and achieve the effects of improving quality, improving return, and reducing recovery costs

Inactive Publication Date: 2014-08-13
石家庄共创环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Large state-owned enterprises symbolically have CO 2 recycle, but recycle CO 2 also at a loss

Method used

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  • Carbon dioxide recovery chamber type lime shaft furnace
  • Carbon dioxide recovery chamber type lime shaft furnace
  • Carbon dioxide recovery chamber type lime shaft furnace

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] as attached Figure 1-4 A carbon dioxide recovery chamber type lime shaft kiln is shown, which includes a lime kiln kiln body part, a lime kiln combustion device and a lime kiln control system, and the lime kiln body part includes a shaft kiln body, a The top cover 5 of the kiln body and the civil foundation 31 of the vertical kiln installed at the bottom of the main body of the shaft kiln for support. The top cover 5 of the kiln body is provided with a distribution device 32 connected with the main body of the shaft kiln. The distribution device 32 passes through The distribution pipe 1 of the kiln body top cover 5 communicates with the main body of the shaft kiln, and the kiln body top cover 5 is provided with a pressure measuring tube 2 communicating with the shaft kiln body.

[0030] The upper part of the main body of the ...

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Abstract

The invention relates to a lime shaft furnace and especially relates to a carbon dioxide recovery chamber type lime shaft furnace. The shaft furnace comprises a lime furnace body part, lime furnace combustion devices, and a lime furnace control system; the limestone calcining area in the lime furnace body is provided with a plurality of parallelly-arranged rectangular lime furnace combustion devices, the gaps between every two neighbored lime furnace combustion devices are limestone calcining areas; coal gas and air are combusted in the lime furnace combustion devices, and the high temperature generated by the burning is converted to thermal energy through combustion chamber radiation or convection to degrade the limestone. The coal gas and air in the lime shaft furnace and the combustion waste gas do not directly contact with the limestone, thus the lime quality is improved, at the same time high purity carbon dioxide is obtained with a low cost, and direct carbon dioxide discharge which can pollute the atmosphere is also avoided.

Description

technical field [0001] The invention relates to a lime shaft kiln, in particular to a carbon dioxide recovery chamber type lime shaft kiln. Background technique [0002] At present, all iron and steel companies (factories) in my country have lime plants (workshops), but only Baotou Steel, Guangzhou Iron and Steel, Chongqing Iron and Steel (all three plants use PSA), Anshan Iron and Steel (chemical absorption method) and other steel plants have lime plants (workshops). A lime plant that recovers carbon dioxide. According to incomplete statistics, the output of Baosteel is 10,000t / year, and the output of Anshan Iron and Steel is 5,000t / year. The carbon dioxide concentration and lime output of various kiln types are different, and the ratio is roughly 54:43. According to the lime output, the carbon dioxide output can be calculated. At present, most of the carbon dioxide produced by lime kilns is vented, except for individual lime plants that recover carbon dioxide. To recy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/12C01B31/20C01B32/50
CPCY02P40/40
Inventor 冯兵河马显国张立新
Owner 石家庄共创环保科技有限公司
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