Full water-cooled fixed bed liquid slagging gasification device

Abstract

The invention relates to a full water-cooled fixed bed liquid slagging gasification device which comprises a gasification furnace body, wherein the gasification furnace body comprises a furnace shelland a membrane type water cooling wall arranged inside the furnace shell; a feeding port is formed in the top of the gasification furnace body; a gas outlet is formed in an upper part of the gasification furnace body; a circle of spray nozzles are formed in a lower part of the gasification furnace body; a slagging port is formed in a center of the bottom of the membrane type water cooling wall; the bottom of the furnace shell is fixedly connected with a quench chamber by a flange; the top of the flange is fixedly connected with the slagging port by a support plate; a fire insulating hood having a downward opening is arranged in the quench chamber; the slagging port extends into the fire insulating hood; an annular burner nozzle is formed in the bottom of the slagging port; and the annularburner nozzle is arranged in the fire-insulating hood.

Description

technical field [0001] The invention relates to a fully water-cooled fixed-bed liquid slagging gasification device, which belongs to the field of coal gasification devices. Background technique [0002] A typical pressurized fixed bed liquid slag discharge gasifier usually adopts a copper water-cooled structure in the slag pool area to prolong the service life of the refractory material in the high temperature slag area. The cooling water pipe is pre-embedded in the copper water-cooling component, which is complicated to process and high in cost. In addition, in order to ensure the safety of copper castings, forced water cooling is adopted, and the temperature difference between the inlet and outlet of cooling water should not be too large, resulting in a large amount of cooling water circulation in the water wall in the slag area, and the heat taken away by the cooling water cannot be directly used, reducing The heat utilization efficiency of the whole gasifier is improved...

AI Technical Summary

Problems solved by technology

The cooling water pipe is pre-buried inside the copper water-cooling component, which is complicated to process and high in cost

In addition, in order to ensure the safety of copper castings, forced water cooling is adopted, and the temperature difference between the inlet and outlet of cooling water should not be too large, resulting in a large amount of cooling water circulation in the water wall in the slag area, and the heat taken away by the cooling water cannot be directly used, reducing The heat utilization efficiency of the whole gasifier is improved

[0003] On the other hand, in order to ensure that the temperatur

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