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Automatic control method for thermal cycle continuous coal pyrolyzing furnace

A coal pyrolysis and thermal cycle technology, applied in the direction of comprehensive factory control, electrical program control, furnace safety device, etc., can solve the problems of exhaust gas export, recovery and purification, inability to carry out continuous production, low production efficiency, etc. To achieve the effect of overcoming the low efficiency of discontinuous production in the process, reducing the cost of coking and improving the efficiency of coking

Inactive Publication Date: 2012-11-21
SHANXI XINLI ENERGY TECH
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  • Claims
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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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  • Automatic control method for thermal cycle continuous coal pyrolyzing furnace

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Embodiment Construction

[0022] The specific embodiment of the automatic control method of the thermal cycle continuous coal pyrolysis furnace of the present invention is mainly introduced in detail below.

[0023] Part 1 Furnace Coal Proportion and Preparation

[0024] 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.

[0025] 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 o...

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Abstract

The invention discloses an automatic control method for a thermal cycle continuous coal pyrolyzing furnace. The method is realized by the following steps: (1), an industrial control center controls the dehydration of coal as fired; (2), the industrial control center controls the feeding of the coal as fired; (3), the industrial control center regulates the preheating temperature of the coal as fired; (4), the industrial control center regulates the quantity of coal as fired and carries out temperature monitoring; (5), the industrial control center regulates and controls the coal pyrolysis heating; (6), the industrial control center evaluates the dry quenching process; (7), the industrial control center evaluates and regulates the coal pyrolysis process, the industrial control center controls the guiding speed and the guiding pressure of crude gas, and the coal pyrolysis carbonization process is controlled to a certain degree; (8), the industrial control center carries out comprehensive evaluation to the steps and makes the decision of discharging coke or not. The automatic control method realizes the control on the instruments and apparatuses for techniques of dehydration, coal feeding, preheating, carbonization, coke modification, dry quenching and crude gas guiding.

Description

technical field [0001] The invention relates to an automatic control method, in particular to an automatic control method for a thermal cycle continuous 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 coking and a complete process for ex...

Claims

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Application Information

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IPC IPC(8): C10B41/00G05B19/418
Inventor 王新民周艳玲
Owner SHANXI XINLI ENERGY TECH
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