Pyrolyzing furnace combustion zone temperature control system and method for oxygen-enriched pyrolysis of coal
A temperature control system and control system technology, applied in the manufacture of combustible gas, gasification process, petroleum industry, etc., can solve the problems of pyrolysis gas quality reduction, safety hazards, violent combustion, etc., to save resources, ensure quality, avoid The effect of safety hazards
Pending Publication Date: 2021-02-02
SHAANXI DONGXINYUAN CHEM CO LTD
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Problems solved by technology
However, when the oxygen-enriched source is used, the pyrolysis furnace sometimes has the problem of excessive combustion, and the maximum temperature of the combustion section of the pyrolysis furnace can reach above 800°C. security risks
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] Such as figure 1 As shown, the pyrolysis furnace combustion section temperature control system for coal oxygen-enriched pyrolysis provided by the embodiment of the present invention includes a pyrolysis furnace 1, a gas source 2, an oxygen-enriched source 3, a DSP control system 4, a thermocouple 5 and Water vapor source6.
[0034] A first flow solenoid valve 8 is provided on the pipeline connecting the gas source 2 and the pyrolysis furnace 1...
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The invention discloses a pyrolyzing furnace combustion zone temperature control system and method for oxygen-enriched pyrolysis of coal. The system comprises a pyrolyzing furnace, and a first flow electromagnetic valve is arranged on a pipeline for communicating a gas source with the pyrolyzing furnace; the oxygen-enriched gas source is communicated with the pyrolyzing furnace through an oxygen-enriched pipe, and a second flow electromagnetic valve is arranged on a pipeline of the oxygen-enriched pipe; a water vapor source is connected with the pyrolyzing furnace through a steam pipe, the endpart of the steam pipe extends into the combustion section of the pyrolyzing furnace, and a third flow electromagnetic valve is arranged on a pipeline of the steam pipe; and a thermocouple is arranged at the combustion section of the pyrolyzing furnace. The method comprises the following steps: monitoring the temperature of the combustion section of the pyrolyzing furnace through the thermocouple; water vapor is conveyed to the combustion section of the pyrolyzing furnace to control the temperature of the combustion section of the pyrolyzing furnace, and nitrogen is conveyed to the combustionsection of the pyrolyzing furnace to restrain the combustion degree in the combustion section of the pyrolyzing furnace. The temperature of the combustion section of the pyrolyzing furnace can be controlled, and generated carbon monoxide and hydrogen can be recycled, so that resources are saved while the quality of pyrolysis gas is guaranteed.
Description
technical field [0001] The application belongs to the technical field of coal pyrolysis, and in particular relates to a temperature control system and method for a combustion zone of a pyrolysis furnace for oxygen-rich pyrolysis of coal. Background technique [0002] At present, the air intake system of some pyrolysis furnaces will use a gas source and an oxygen-enriched source with an oxygen content of 50% to 60%. The oxygen-enriched source is used as the combustion-supporting air and secondary air of the pyrolysis furnace. Compared with the conventional scheme, the oxygen-enriched source uses ordinary air as the combustion-supporting air and secondary air of the pyrolysis furnace, and the nitrogen content in the oxygen-enriched source is greatly reduced, thus improving the quality of the pyrolysis gas produced by the pyrolysis furnace and reducing The emission of nitrogen compounds pollutes the environment. However, when the oxygen-enriched source is used, the pyrolysis f...
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Login to View More IPC IPC(8): C10J3/72
CPCC10J3/723C10J2300/093C10J2300/0956C10J2300/1223
Inventor 宋如昌李亚军李海鹏高宏寅
Owner SHAANXI DONGXINYUAN CHEM CO LTD