Spinning bed gasification furnace

Abstract

The invention relates to a spinning bed gasification furnace which comprises a gasification furnace, a feeding machine and a draught fan. A gasification chamber is a cavity enclosed by a water tank, a furnace ejecting plate and a gas supplementing cover; the furnace top plate and the edge of the top of the water tank are welded together; the gas supplementing cover is positioned on a gas supplementing mechanism; the bottom of the gas supplementing cover is provide with a support barrel which is integrally connected with the gas supplementing cover; the bottom of the support barrel is connected with an annular support barrel bottom plate; the lower part of the support barrel bottom plate is supported on a seat wheel through a wheel rail; a wheel gear is fixedly connected under the support barrel bottom plate; and a drive machine drives the support barrel and the gas supplementing cover to rotate by using the gas supplementing mechanism as a center through the wheel gear. The spinning bed gasification furnace adopts opened charging; the lower end of a charging area is provided with a rotating tapered gas supplementing tower; the tapered gas supplementing tower has great permeation volume; and the fuel is oxidized under the action of the draught fan, and the ash is directly discharged. The spinning bed gasification furnace achieves solid fuel gasification large scale.

Description

technical field [0001] The invention relates to a biomass and coal gasification device, in particular to a gasification furnace in which fuel is rotated for thermochemical reaction. Background technique [0002] As early as the beginning of the last century, developed countries in the world began to research and develop gasification technology to change solid fuel into gaseous fuel to fill the vacancy of natural gas. In the past hundred years, the form of gasification has gradually developed, and the fluidized bed has stable operation and low failure rate; the fixed bed fuel is widely used and the investment flexibility of equipment is strong. At present, the above two gasification forms are widely used all over the world. However, these two gasification forms have inherent insurmountable weaknesses, among which: the fluidized bed has very strict requirements on the particle size and uniformity of the fuel, and the gasification rate is low, and the ash content of the gas is...

AI Technical Summary

Problems solved by technology

However, these two gasification forms have inherent insurmountable weaknesses, among which: the fluidized bed has very strict requirements on the particle size and uniformity of the fuel, and the gasification rate is low, and the ash content of the gas is large; the fixed bed suction gas Furnaces must be sealed and fed. Fixed-bed open-heart and down-suction gasifiers have limited grates and need to be replaced frequently. Developing to a large-scale gasification device

It can be seen that the existing fixed bed and fluidized bed gasifiers are far from meeting the requirements for the gasification of agricultural and forestry waste and biomass waste in large quantities.

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