Uniform coal feeding device of chain furnace

Abstract

The invention discloses a uniform coal feeding device of a chain furnace. The uniform coal feeding device comprises a coal hopper, wherein the upper end surface of the coal hopper is open, a strip-shaped slag outlet is formed in the lower end of the right side surface of the coal hopper, and a control switch is arranged on the front side surface of the coal hopper. The uniform coal feeding deviceof the chain furnace is simple in structure, the separation of the large coal briquettes and the pulverized coal is realized through the separating plates, the large coal briquettes are horizontally led out to the chain through the material guide plate, the coal foam flows out of the upper side of the large coal briquette through the powder outlet, and finally falls into a gap of a large coal briquette, the coal foam is easy to fully combust, so that the combustion of the coal briquettes is accelerated, and the conversion rate of the heat energy is improved; the shifting piece can poke a mixture of the large coal briquette and the coal foam on the separating plate, so that the coal foam can fall down from the strip-shaped through hole of the separating plate, and the separation of the pulverized coal can be accelerated; the falling speed of the large coal briquette can be controlled by the coal dividing plate, the coal foam can be prevented from tracking and slipping, so that the separation efficiency is improved, and finally, the large coal briquettes and the pulverized coal are mixed.

Description

technical field [0001] The invention relates to the technical field of chain furnaces, in particular to a uniform coal feeding device for chain furnaces. Background technique [0002] The particle size of the coal fired in the chain furnace varies from large to small. The equivalent diameter of large coal blocks even reaches 50-60mm. At the same time, there are also a large number of coal particles with an equivalent diameter of less than 5mm. Large coal blocks are difficult to catch fire and burn out. The most common solution is to install two opposite-moving screw rods on the top of the layered coal feeder to mix the raw coal. Due to the limited conveying capacity of the screw rods and the short conveying distance, it is impossible to mix the coal lumps and fines evenly. In the end, the large coal lumps are sent in first, and the coal dust enters later, and the areas in the chain are separated in the horizontal direction. The combustion of the large coal lumps is insuffici...

AI Technical Summary

Problems solved by technology

[0002] The particle size of the coal fired in the chain furnace varies from large to small. The equivalent diameter of large coal blocks even reaches 50-60mm. At the same time, there are also a large number of coal particles with an equivalent diameter of less than 5mm. Large coal blocks are difficult to catch fire and burn out. The most common solution is to install two opposite-moving screw rods on the top of the layered coal feeder to mix the raw coal. Due to the limited conveying capacity of the screw rods and the short conveying distance, it is impossible to mix the coal lumps and fines evenly. In the end, the large coal lumps are sent in first, and the coal dust enters later, and the areas in the chain are separated in the horizontal direction. The combustion of the large coal lumps is insufficient, resulting in a waste of resources.

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