Internal combustion heating method of coal pyrolyzing furnace

A heating method and internal combustion technology, which are applied in the heating of coke ovens, combustible gas heating coke ovens, coke ovens, etc., can solve the problems of inability to carry out continuous production, export of no waste gas, recycling, purification and utilization, and low production efficiency.

Inactive Publication Date: 2014-03-12
SHANXI XINLI ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • Internal combustion heating method of coal pyrolyzing furnace
  • Internal combustion heating method of coal pyrolyzing furnace
  • Internal combustion heating method of coal pyrolyzing furnace

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Embodiment Construction

[0032] The specific embodiment of the combustion heating method in the coal pyrolysis furnace of the present invention is mainly introduced in detail in the first section of the fourth part below.

[0033] Part 1 Furnace Coal Proportion and Preparation

[0034] If 5 different coals are selected, they are respectively gas coal, fat coal, coking coal, one-third coking coal, and lean coal, which are first mixed and then sieved and crushed until the broken particles reach below 5mm to form the furnace coal. Of course, the coal of the present invention is heated The decomposing furnace is equally applicable to other proportions and particle sizes of the furnace-feeding coal, and does not constitute a limitation to the furnace-feeding coal powder required by the coal pyrolysis furnace of the present invention.

[0035] The second part of coal dehydration

[0036] The incoming coal entering the coal pyrolysis furnace is dehydrated in advance through the incoming coal dehydration dev...

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Abstract

The invention discloses an internal combustion heating method of a coal pyrolyzing furnace. The method comprises the following steps that air is supplemented to high-temperature combustible waste gas generated by dry coal quenching in main internal flame paths and lower-section auxiliary internal flame paths for combustion; the high-temperature combustible waste gas in the lower-section auxiliary flame paths after primary air supplementation goes round into the main internal flame paths, and is mixed with high-temperature combustible gas in the main internal flame paths and combusted waste gas; air is supplemented again at the middle upper part of each main internal flame path, so that the mixed high-temperature combustible gas and combusted waste gas are further combusted; the waste gas after secondary air supplementation combustion is discharged after being mixed completely between each main internal flame path and an upper-section auxiliary internal flame path; and at the same time clean gas purified and recycled from crude gas is respectively and alternately supplemented into the adjacent two middle-section auxiliary internal flame paths for supplementing heating. Sufficient temperature and heat are provided for coal antipyresis carbonization by the method, the method is environment-friendly and is economical, and the coking cost is reduced.

Description

technical field [0001] The invention relates to a gas combustion heating method, in particular to a combustion heating method using gas generated by dry extinguishing and pyrolysis of a coal pyrolysis furnace. 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 cok...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B21/12
Inventor 王新民王文卜
Owner SHANXI XINLI ENERGY TECH
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