Combustion Control System of Sulfur-Containing Waste Liquid Incinerator

Abstract

The invention discloses a combustion control system of a sulfur-containing liquid waste incinerator. The combustion control system comprises a liquid waste flowmeter, a liquid waste adjusting valve, acompressed air flowmeter, a compressed air adjusting valve, a coke oven flowmeter, a coke oven adjusting valve and a combustion adjusting valve, the output end of a control unit is electrically connected with the control ends of the liquid waste flowmeter, the liquid waste adjusting valve, the compressed air flowmeter, the compressed air adjusting valve, the coke oven flowmeter, the coke oven adjusting valve and the combustion adjusting valve, and the valves and the flowmeters are controlled by the control unit. The adjusting valves are adopted to control the flow of sulfur-containing liquidwaste, the flow of combustion air, and the pressure and flow of coke oven gas, monitoring and automatic adjusting are carried out through an oxygen quantity detection alarm instrument, an incineratortemperature sensor and the control unit, and the combustion control system is high in adjusting speed, accurate in adjusting and especially suitable for combustion control over the sulfur-containing liquid waste incinerator.

Description

technical field [0001] The invention belongs to the field of waste liquid recycling and processing equipment, and in particular relates to a combustion control system of a sulfur-containing waste liquid incinerator. Background technique [0002] Many domestic enterprises in petrochemical, chemical, steel, coal gasification and other industries will produce a large amount of salt substances rich in sulfur, ammonium thiocyanate and ammonium thiosulfate while producing their main target products. Such waste liquid contains complex chemical components and low calorific value. There are not many similar devices for producing sulfuric acid through incineration, and the main body of the incinerator combustion control is manual operation mode with a low degree of automation. The stability of the incinerator The operation depends entirely on the experience of the operator to adjust the parameters such as the amount of sulfur-containing waste liquid entering the furnace, the amount of...

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Problems solved by technology

[0002] Many domestic enterprises in the petrochemical, chemical, steel, coal gasification and other industries will produce a large amount of salt substances rich in sulfur, ammonium thiocyanate and ammonium thiosulfate while producing their main target products. Such waste liquid contains complex chemical components and low calorific value. There are not many similar devices for producing sulfuric acid through incineration, and the main body of the incinerator combustion control is manual operation mode with a low degree of automation. The stability of the incinerator The operation depends entirely on the experience of the operator to adjust the parameters such as the amount of sulfur-containing waste liquid entering the furnace, the amount of coke oven gas, and the amount of air. If the combustion conditions change slightly, the operators need to constantly adjust, resulting in unstable combustion conditions. Moreover, once the operation is unreasonable or delayed, it will cause greater fluctuations in the combustion conditions of the incinerator.

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