Heat-circulation continuous automated coal pyrolysis method

A technology of automatic coal and thermal cycle, applied in the field of coal pyrolysis, to overcome the low production efficiency, reduce the cost of coking, and improve the efficiency of coking

Inactive Publication Date: 2014-06-11
SHANXI XINLI ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most coal pyrolysis furnaces (coke ovens) currently on the market adopt batch-type coking. Coke upgrading, dry quenching and other process steps are relatively independent, continuous production cannot be carried out, and production efficiency is low; in addition, the raw coal gas generated during coal pyrolysis contains many useful components, such as H2S , HCH and other acid gases, NH3 basic gas, tar, benzene, naphthalene, washing oil and other organic substances, there is no complete process for exporting, recycling and purifying raw gas

Method used

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  • Heat-circulation continuous automated coal pyrolysis method

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Embodiment Construction

[0062] The specific embodiment of a thermal cycle continuous automatic coal pyrolysis method of the present invention is mainly introduced in detail below.

[0063] Part 1 Furnace Coal Proportion and Preparation

[0064] The coal pyrolysis furnace involved in the present invention can obtain cokes of different grades according to different proportions of coals fed into the furnace.

[0065] The steps are as follows: 1) 5 kinds of different coals are selected, which are respectively gas coal, fat coal, coking coal, one-third coking coal and lean coal. 2) Gas coal 20%~40%; fat coal 10%~20%; coking coal 10%~20%; one-third coking coal 15%~30%; lean coal 10%~15%, first mix and then sieve Broken until the broken particles reach below 5mm to form coal into the furnace. Of course, the coal pyrolysis furnace of the present invention is equally applicable to coal into the furnace with other proportions and particle sizes, and does not constitute a restriction on the required coal powde...

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Abstract

The invention discloses a heat-circulation continuous automated coal pyrolysis method. The invention relates to main devices such as a furnace body, a coal feeding device, a preheating device, an in-furnace coal adjusting chamber, an in-furnace coal cooling device, a coal pyrolysis carbonization device, a coke modification device, a dry quenching device, and a raw coke-oven gas out-leading device. The coal pyrolysis carbonization device mainly comprises a carbonization chamber, an outer fuel gas heating device, an inner fuel gas heating device, and a fire path bow. With the method provided by the invention, coal feeding, preheating, carbonizing, coke modifying, dry quenching, and other processes are connected into a whole, such that continuous coking is realized, coking efficiency is improved, and coking cost is reduced.

Description

technical field [0001] The invention relates to a coal pyrolysis method, in particular to a thermal cycle continuous automatic coal pyrolysis method. Background technique [0002] At present, most coal pyrolysis furnaces (coke ovens) on the market adopt batch-type coking, and the process steps such as the proportion of coal into the furnace, dehydration, coal feeding, preheating, carbonization, coke reforming, and CDQ are relatively independent and cannot be carried out. Continuous production, low production efficiency; In addition, the raw coal gas produced in the coal pyrolysis process contains many useful components, such as H 2 S, HCH and other acid gases, NH 3 Alkaline gas, tar, benzene, naphthalene, washing oil and other organic substances do not have a complete process for exporting, recovering and purifying raw gas. [0003] This impels the inventors to explore and innovate a complete set of continuous coking and a complete process for exporting, recovering and pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B31/00C10B57/08C10B31/02C10B57/10C10B21/10C10B21/12C10B57/00C10B39/00C10B41/08C10B27/00C10K1/10
Inventor 王新民
Owner SHANXI XINLI ENERGY TECH
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