A pulverized coal pyrolysis rotary furnace

A rotary kiln and pulverized coal technology, applied in coke ovens, indirect heating carbonization, special carbonization, etc., can solve the problems of small heat transfer area, complex structure, low thermal efficiency, etc., and achieve large heat transfer area and improved heat transfer area , The effect of dealing with a large amount of pulverized coal

Inactive Publication Date: 2017-10-31
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing external heating type pulverized coal pyrolysis rotary furnace has the problems of complex structure, high cost, small heat transfer area, low thermal efficiency and low output

Method used

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  • A pulverized coal pyrolysis rotary furnace
  • A pulverized coal pyrolysis rotary furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Combine Figure 1-Figure 2 , The structure of the rotary kiln device provided by this embodiment includes: a pulverized coal feeding device 11, a rotary kiln body 7, a supporting wheel (5, 13) and a transmission device 14;

[0028] The rotary furnace body 7 is provided with a hot gas outlet 2, a flue gas outlet 10 and a semi-coke outlet 19; a guide screw 15 is installed in the rotary furnace body 7;

[0029] The pulverized coal feeding device 11 is hermetically connected to the rotary furnace body 7 through the feed sealing device 12; the flue gas outlet 10 is sealed to the rotary furnace body through the flue gas sealing device 9; a discharge cover 1 is installed at the semi-coke outlet 19;

[0030] A preheating section, a pyrolysis section and a cooling section are successively arranged in the rotary furnace body 7 along the feeding direction of the pulverized coal, among which;

[0031] The preheating section and the pyrolysis section are equipped with heat exchange tubes 16...

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Abstract

The invention relates to a pulverized coal pyrolysis rotary furnace. The pulverized coal pyrolysis rotary furnace involved includes a rotary furnace body, and the rotary furnace body is provided with a preheating section, a pyrolysis section and a cooling section; the preheating section and the pyrolysis section are equipped with a plurality of heat exchange tubes, and the The cooling section is equipped with multiple semi-coke cooling heat exchange tubes. At least two hot flue gas inlets are arranged at intervals on the heat exchange tube of the pyrolysis section to facilitate adjustment of the temperature distribution in the furnace length direction. The use of the heat exchange tube greatly increases the heat exchange area. The heat exchange tube rotary furnace of the present invention has a large heat exchange area, a large amount of pulverized coal to be processed, and a simple structure, and is suitable for large-scale pyrolysis production of more than one million tons of pulverized coal.

Description

Technical field [0001] The invention relates to a rotary furnace device for large-scale pulverized coal pyrolysis, in particular to a pulverized coal pyrolysis rotary furnace. Background technique [0002] The existing externally heated pulverized coal pyrolysis rotary furnace has the problems of complex structure, high cost, small heat transfer area and low thermal efficiency and low output. Summary of the invention [0003] Aiming at the defects or deficiencies of the prior art, the present invention provides a new type of externally heated pulverized coal pyrolysis rotary furnace. [0004] The pulverized coal pyrolysis rotary furnace of the present invention includes a rotary furnace body, the rotary furnace body is provided with a preheating section, a pyrolysis section and a cooling section; the preheating section and the pyrolysis section are fixedly installed with multiple pulverized coal heating exchanges The heat pipe is fixedly installed with a plurality of heat exchange ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/04C10B47/30C10B47/44
Inventor 赵鹏冯雷马飞姜国璋李建发高光耀
Owner CHANGAN UNIV
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