Coal pressurized gasification equipment

Abstract

The invention relates to a coal pressure gasification device which comprises a coal locking mechanism, an ash locking mechanism and a gasification furnace mechanism, wherein the coal locking mechanism comprises a coal lock shell, a coal lock cylinder valve, an upper coal lock valve, a lower coal lock valve, a coal lock pressurizing valve mechanism, a coal lock decompression valve, a coal lock temperature gauge, a coal lock pressure meter, a coal lock alarm, a coal lock timer, a coal lock detection unit and a coal lock control unit, wherein the coal lock shell is used for limiting an inner coal lock chamber, a coal lock feeding port at the top and a coal lock discharging port at the bottom; the coal lock cylinder valve is located at the coal lock feeding port; the upper coal lock valve is arranged under the coal lock cylinder valve and at the coal lock feeding port; the lower coal lock valve is arranged at the coal lock discharging port; the coal lock pressurizing valve mechanism and the coal lock decompression valve are connected with the coal lock shell; the coal lock temperature gauge used for detecting the coal temperature, the coal lock pressure meter used for detecting the pressure in the inner coal lock chamber, the coal lock alarm and the coal lock timer are respectively connected with the coal lock shell; the coal lock control unit is used for controlling the operation of the coal locking mechanism; the coal lock control unit is arranged for controlling the coal locking mechanism through the circularly performed discharging process, decompression process, feeding process and pressurizing process in turn, so as to add the coal into the gasification furnace mechanism.

Description

technical field [0001] The invention relates to the field of coal processing, in particular to coal pressurized gasification equipment which can use lignite as raw material. Background technique [0002] The demand for civil and industrial natural gas in my country is increasing year by year, but my country's natural gas reserves are limited, while coal reserves are quite abundant. Therefore, in order to meet the growing domestic demand, my country's coal-to-natural gas projects have gradually developed, and tend to be large-scale gasification equipment. However, large-scale gasification equipment consumes a lot of coal, discharges a lot of ash and has many equipments. In order to improve the automation level of large-scale gasification equipment, reduce the number of gasification equipment operators and reduce the cost of human resources, large-scale gasification equipment that can be automatically controlled is required. [0003] Since the coal lock, ash lock and gasifica...

AI Technical Summary

Problems solved by technology

However, the 3.0MPa pulverized coal pressurized gasifier coal lock, ash lock and gasification agent automatic control system is not suitable for use in the 4.0MPa pulverized coal pressurized gasifier coal lock, ash lock and gasification agent automatic control system

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