Method and equipment for charging dried coal powder in its pressurized gasification

A technology for pressurized gasification and dry coal powder is applied in the field of dry coal powder feeding and device in the process of dry coal powder pressurized gasification, and can solve the problems of difficult operation, complex structure and low gasification efficiency of a gasifier. , to achieve the effect of stable and controllable feeding amount, simple equipment structure and reduced investment cost
CN1376761AInactive Publication Date: 2002-10-30EAST CHINA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA UNIV OF SCI & TECH
Publication Date
2002-10-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for feeding dried coal powder in pressure gasifying process features that the dried coal powder goes through intermediate material tank where it is pressurized by inertial gas, balance pipe,high-pressure powdered coal cabin and mixer and then into gasifier. Its feeding apparatus is composed of an intermediate material tank, a high-pressure powdered coal cabin and a mixer of carrying gaswith powdered coal. Its advantages are stable and controllable feed, simple apparatus and low cost.
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Description

technical field

[0001] The invention relates to a dry coal powder feeding method and device in the process of pressurized gasification of dry coal powder, in particular to a method for controlling the flow rate of dry coal powder by a rotary feeding valve, and the dry coal powder is driven by a carrier gas in an airflow The way of conveying is the method and device for feeding the gasification furnace through the nozzle. Background technique

[0002] Practice has proved that in the process of pressurized pulverized coal gasification, the feeding method of dry coal powder and the equipment used will directly affect the gasification efficiency, operation stability and system safety of the gasifier. The oxygen-carbon ratio of the gasification furnace is also unstable, and the temperature in the furnace is high and low at times, making it impossible to maintain production. The disclosed charging method and adopted device are not satisfactory, as Chinese patent CN1032746A disclo...

Claims

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