Pressure and quantity adjustable air jet type pulverized coal conveying fuel booster for rotary spiral conveyer

Abstract

The invention discloses a pressure and quantity adjustable air jet type pulverized coal conveying fuel booster for a rotary spiral conveyer. The pressure and quantity adjustable air jet type pulverized coal conveying fuel booster is novel coal feeding combustion auxiliary equipment. Fuel is fed in a furnace in a conveying jet mode, fire coal dry powder with a fineness of more than 120 meshes is used, and the booster belongs to simple mechanical equipment. By the booster, the conventional manual filling and conveyer belt filling modes are mainly changed; and in the conventional filling modes, granular fire coal is fed in the furnace to form a conical stacking shape, a granular fire coal state is formed, and a stacking density of 0.4 to 0.5t / m<3> influences air ventilation, so that the combustion rate is reduced, and maximum combustion value of the heat is not achieved. By the booster, a motor drives a rotary spiral to spray fire coal powder, namely fire coal powder with a fineness of 120 to 180 meshes, into the furnace in a mist shape so as to be rapidly combusted for 0 to 1 second through the co-action of combining a delivery pipe of uniform delivery with an air pump; therefore, the maximum combustion value of coal fuel is achieved.

Description

technical field [0001] The invention is a new auxiliary equipment for coal delivery and combustion. The fuel is delivered to the furnace by means of delivery jet flow, and the fineness is greater than 120 mesh, and the coal powder surface is used, which belongs to simple mechanical equipment. Background technique [0002] The present invention mainly changes the previous manual loading and conveyor belt loading methods. The previous loading method is to form a conical stacking shape of granular coal into the furnace, and form a granular coal state with a bulk density of 0.4-0.5 t / m 3 Unfavorable air circulation, thereby reducing the combustion rate, the heat energy will not reach the maximum combustion value. And the present invention is that the fineness of the coal-fired powder surface is 120 mesh-180 mesh, and the coal-fired powder surface is sprayed in a mist form under the joint operation of the motor-driven rotating screw, the delivery pipe, and the air pump. Put it ...

AI Technical Summary

Problems solved by technology

[0002] The present invention mainly changes the previous manual loading and conveyor belt loading methods. The previous loading method is to form a conical stacking shape of granular coal into the furnace, and form a granular coal state with a bulk density of 0.4-0.5 t / m 3 Unfavorable air circulation, thereby reducing the combustion rate, and the heat energy will not reach the maximum combustion value

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