Gasifier system and semi-coke distribution control method

Abstract

The present disclosure relates to a gasifier system and a semi-coke distribution control method. The gasifier system includes a gasifier body, a semi-coke collecting device and a fly ash collecting device, and the semi-coke outlet of the gasifier body is connected to the semi-coke collecting device. , the first synthesis gas outlet is connected to the fly ash collection device, and the semi-coke collection device is also connected to the inlet end of the fly ash collection device. There is an auxiliary valve between the fly ash collection devices. When the material level in the semi-coke collection device reaches the height of the first material level, the opening of the main valve increases, the opening of the auxiliary valve decreases, and the material level in the fly ash collection device rises. or when the material level in the fly ash collection device reaches the second material level, the opening of the main circuit valve decreases, the opening degree of the auxiliary circuit valve increases, and the material level in the semi-coke collection device increases, realizing the gasification Furnace systems are better adapted to optimal working conditions under full load operation.

Description

technical field [0001] The present disclosure relates to the technical field of coal gasification, and in particular, to a gasifier system and a semi-coke distribution control method thereof. Background technique [0002] Hydrogenation refers to the reaction of carbon-containing compounds and hydrogen at medium temperature (700~1000℃) and high pressure (5~10Mpa) to generate methane-rich crude gas, high value-added aromatic oil and high calorific value semi-coke. Gasifier is a common equipment used for gasification reaction. Usually, there is a semi-coke buffer zone at the bottom of the gasifier. After the reacted semi-coke and syngas undergo preliminary gas-solid inertial separation, most of the semi-coke falls into the semi-coke buffer zone, and then is discharged through the locking bucket system. A small part of the semi-coke is entrained by the syngas through the syngas outlet and enters the syngas filter for fine dust removal. The semi-coke separated during the process...

AI Technical Summary

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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