Coal powder delivery pipeline for GSP (Gaskombinat Schwarze Pumpe) gasifier and feeding method

Abstract

The invention provides a coal powder delivery pipeline for a GSP (Gaskombinat Schwarze Pumpe) gasifier and a feeding method. By using the invention, the delivery condition of the coal powder in the coal powder delivery pipeline can be adjusted before the material is fed into the gasifier; and the material can be fed after the delivery condition of the coal powder in the coal powder delivery pipeline is stable. Each coal powder delivery pipeline is provided with a detector, the second connecting end is connected with the input end of a three-way valve, the first output end of the three-way valve is connected with a gasifying burner of the gasifier, the second output end is connected with the first connecting end of a coal powder circulation pipeline, the second connecting end of the coal powder circulation pipeline is connected with the inside of a coal bunker, and the third connecting end is connected with an external back pressure gas. Each coal powder delivery pipeline is provided with a coal powder circulation pipeline, and before the material is fed into the GSP gasifier, the condition of the coal powder delivered in the coal powder delivery pipeline is adjusted to be stable, thereby being beneficial to smooth start of the gasifier and the uniform slag suspension of the internal surface of the water cooling wall.

Description

technical field [0001] The invention relates to the technical field of coal chemical industry, in particular to a coal powder conveying pipeline and a feeding method of a GSP gasifier. Background technique [0002] Large-scale entrained bed coal gasification technology has become the mainstream of coal gasification technology today, and dry coal pulverized gasification technology has the advantages of wide adaptability to coal types, high effective gas production rate and low specific oxygen consumption, and has been paid more and more attention. Among them, GSP gasifier is a typical representative of dry coal powder pressurized entrained gasification technology. [0003] The GSP gasifier includes a water-cooled wall and a shell of the gasifier, and the dry coal gasification process is carried out in the water-cooled gasifier. The reason why the water-cooled wall can resist various harsh environments such as high temperature, high pressure, and coal slag erosion in the gasi...

AI Technical Summary

Problems solved by technology

However, this way of conveying pulverized coal does not check the working conditions of the regulating valve and other testing instruments on the pulverized coal conveying pipeline, and does not ensure that the pulverized coal entering the gasification burner is stable, so when feeding, The gasification device is unstable, and the car jumps. At the same time, due to the uneven distribution of pulverized coal exiting the gasification burner, it will also cause partial burning of the gasifier, and the slag will not hang uniformly on the water wall, and there is a risk of burning the water wall, thereby Affect the normal operation of the entire gasification device

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