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Coal pyrolysis device and coal pyrolysis method for improving yield of tar

A technology of tar yield and coal pyrolysis, which is applied in coking ovens, petroleum industry, direct and indirect heating combined dry distillation, etc., can solve the problems of increasing additional investment and reducing the calorific value of gas, so as to reduce the secondary combination and improve Tar yield, effect of enhanced heating action

Inactive Publication Date: 2012-08-15
SHENWU TECH GRP CO LTD
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  • Claims
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Problems solved by technology

However, the use of catalytic oxidation increases additional investment; the recycling of pyrolysis gas reduces the emission of methane and greatly reduces the calorific value of the gas finally collected from the furnace

Method used

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  • Coal pyrolysis device and coal pyrolysis method for improving yield of tar
  • Coal pyrolysis device and coal pyrolysis method for improving yield of tar
  • Coal pyrolysis device and coal pyrolysis method for improving yield of tar

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Embodiment Construction

[0017] Such as image 3 As shown, the coal pyrolysis equipment for increasing the tar yield of the present invention includes a body of furnace, the bottom 2 of the body of furnace is provided with a material bed 15 for placing materials 7, between the material bed 15 and the bottom of the furnace 2 It is an overhead space 3, and the material bed 15 is a ventilated material bed; one side of the overhead space 3 is provided with an air inlet 8, and the air inlet 8 is connected with a high-temperature fan 9 and an air outlet 10. The furnace body includes a furnace wall 4, a furnace roof 6 and a rotary furnace bottom 3, a radiant tube 5 for heating is provided in the furnace body, and a water seal groove 1 for sealing is provided between the furnace wall 4 and the rotary furnace bottom 2 .

[0018] The material bed 15 is uniformly provided with dense small holes. The diameter of the small holes is 3-8 mm, and the center-to-center distance between the small holes is 6-11 mm. Pr...

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Abstract

The invention provides a coal pyrolysis device and a coal pyrolysis method for improving yield of tar by reducing secondary pyrolysis of the tar at high temperature. The coal pyrolysis device for improving the yield of tar comprises a furnace body consisting of a fixed furnace top, a furnace wall and a rotary furnace bottom, wherein a material bed used for placing materials is arranged on the rotary furnace bottom, an interval between the material bed and the furnace bottom is an overhead space, and the material bed is a ventilation material bed; and an air sucking opening is arranged at one side of the overhead space and is connected with a high-temperature fan and an air outlet. According to the coal pyrolysis device and the coal pyrolysis method for improving the yield of the tar, disclosed by the invention, the circulation of a thermal field inside a furnace and the function of heating a material are reinforced; pyrolysis gas forcedly permeates a material layer under the action of the high-temperature fan, the flowing of gas in the furnace is reinforced, and the heat transfer of the material layer is accelerated; and secondary combination of macromolecule free radicals generated by original coal pyrolysis and the situation of secondary pyrolysis of the tar are reduced, thus the yield of the tar through original coal pyrolysis is improved.

Description

technical field [0001] The invention relates to a coal pyrolysis device and a pyrolysis method thereof, in particular to a coal pyrolysis device and a pyrolysis method for increasing tar yield. Background technique [0002] The application number is 200910238038.1, and the patent name is a moving bed carbonization furnace with comprehensive heating of radiant tubes and circulating airflow, which is used for rotating beds for pyrolyzing coal, biomass, municipal solid waste and other materials, such as figure 1 As shown, it consists of a fixed furnace wall 4, a furnace roof 6, a rotating furnace bottom 2, and a furnace bottom overhead layer 3. There is a water seal, sand seal or oil seal sealing system 1 between the furnace bottom 2 and the furnace wall 4, so that the furnace Isolated from the outside world. The material 7 is placed on the fixed material bed and driven by the rotating furnace bottom 2 to rotate in the horizontal plane. The material 7 is relatively stationary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B51/00
Inventor 吴道洪丁力张岚
Owner SHENWU TECH GRP CO LTD
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