Gasification furnace system and semicoke distribution control method thereof

Abstract

The invention relates to a gasifier system and a semi-coke distribution control method thereof.The gasifier system comprises a gasifier body, a semi-coke collecting device and a fly ash collecting device, a semi-coke outlet of the gasifier body communicates with the semi-coke collecting device, and a first synthesis gas outlet communicates with the fly ash collecting device; the semi-coke collecting device is further communicated to the inlet end of the fly ash collecting device, a main path valve is arranged between the first synthesis gas outlet and the fly ash collecting device, an auxiliary path valve is arranged between the semi-coke collecting device and the fly ash collecting device, and when the material level in the semi-coke collecting device reaches the first material level height, the opening degree of the main path valve is increased, and the opening degree of the auxiliary path valve is reduced; and when the material level in the fly ash collecting device rises, or when the material level in the fly ash collecting device reaches a second material level height, the opening degree of the main path valve is reduced, the opening degree of the auxiliary path valve is increased, and the material level in the semi-coke collecting device rises, so that the gasification furnace system can better adapt to the optimal working state under full-load operation.

Description

Technical field [0001] The present disclosure relates to the field of coal gasization, and more particularly to a gasifier system and a semi-coking allocation control method. Background technique [0002] Hydrogenation refers to reacting carbonaceous compounds and hydrogen in a medium temperature (700 ~ 1000 ° C) and high pressure (5 ~ 10 mPa) conditions, and is a crude gas, high value-added aromatic oil, and high thermal value, but The gasification furnace is a common equipment used to conduct a gasification reaction. Typically, after the bottom of the gasifier, the reactive half-focus and syngas are separated after the initial air solid inertia separation, most of the half-focus falls to the half-focus buffer, and then discharged by the lock system. A small part of the half-coke is eluted eluted elsewhere by the synthesis gas tramp over the synthetic gas outlet, and the semi-focus separated in the process is also discharged through the lock system. [0003] If you want to make ...

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Problems solved by technology

[0003] In order to make the overall system run at full load, it is necessary to keep the amount of semi-coke processed by the two sets of lock bucket systems stable during the cycle period. The coke amount cannot be determined, resulting in the inability of the attached lock bucket system to operate stably, resulting in an uncoordinated overall semi-coke distribution ratio, making the system unable to meet the long-term full-load stable operation

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