Oxidative carbonization device and method for coal-based activated carbon

A technology for oxidizing carbon and chemical devices, which is applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problems of increased crushing rate, decreased yield, and decreased strength of molded particles, and achieves reduction of crushing and powder. , the effect of increasing the breakage rate

Active Publication Date: 2018-07-27
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, studies have shown that due to the increase in the treatment process, it is easy to increase the breakage rate of the shaped particles, and lead to a decrease in yield and strength.

Method used

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  • Oxidative carbonization device and method for coal-based activated carbon
  • Oxidative carbonization device and method for coal-based activated carbon
  • Oxidative carbonization device and method for coal-based activated carbon

Examples

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Embodiment 1

[0039] use as figure 1 The shown oxidative carbonization device performs oxidative carbonization treatment on the shaped pellets of raw coal, wherein the internal structure of the first cylinder is as follows figure 2 Shown; the second cylinder is provided with a copy board with the same structure. In addition, the first outer heating jacket and the second outer heating jacket are each provided with 6 segmented jackets.

[0040] The briquette is crushed and granulated to obtain granules with a particle diameter between 6.7 mm and 8 mm. During the oxidation treatment, the inner temperature of the cylinder corresponding to the first segmented jacket of the first external heating jacket is controlled to be 150-170°C, and the temperature inside the cylinder corresponding to the sixth segmented jacket is 200-220°C, during which the temperature rise rate is 0.2~0.5°C / min; use air as the oxidant to oxidize for 2.5 hours to obtain the oxidized material.

[0041] Then send the oxid...

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Abstract

The invention discloses an oxidation carbonization device of coal-base activated carbon. The device comprises a first external-heating rotary kiln, a second external-heating rotary kiln and a conveyer, wherein a core tube, a plurality of partition boards and a plurality of material grabbing plates are arranged in a first cylinder of the first external-heating rotary kiln. The invention also discloses an oxidation carbonization method by using the oxidation carbonization device. The inside of the first cylinder is divided into a plurality of reaction bins, the material grabbing plates in the reaction bins are adjusted, and the raw material coal formed particles are subjected to preoxidation treatment, thereby effectively reducing the material crushing, and enhancing the yield and strength of the coal formed particles after oxidation carbonization.

Description

technical field [0001] The invention belongs to the field of coal-based activated carbon production, and in particular relates to an oxidation and carbonization device and method for coal-based activated carbon. Background technique [0002] In the traditional coal-based activated carbon production process, the shaped pellets obtained after the raw coal is formed and granulated are sequentially carbonized and activated to prepare activated carbon. At present, the advanced activated carbon production process often includes an oxidation process, that is, oxidation treatment is performed first before carbonization treatment. Proper oxidation treatment of carbon materials before carbonization can improve the adsorption performance and yield of activated carbon, which is conducive to large-scale production. [0003] For example, CN203866039U discloses an oxygen carbonization pretreatment device for the preparation of coal-based activated carbon, including an external thermal oxi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/39
CPCC01P2006/90
Inventor 韩晓林赵龙王洪强冀占成陈太广赵振疆张雁江赵荣善舒晓亮
Owner CHNA ENERGY INVESTMENT CORP LTD
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