Cyclone Thermal Power Plant Coal Bunker Unclogging Equipment and Using Method

Abstract

The invention discloses cyclone-type blockage removal equipment for a coal bunker of a thermal power plant and a using method of the equipment and belongs to the technical field of coal conveying of power plants. The blockage removal equipment comprises a hyperbolic coal bunker, a gas supply pipe network, a gas source system, a flow aiding system, a signal acquisition system and a control system, wherein the flow aiding system comprises a main control pipeline, sub-control pipelines, a flow aiding main pipeline and flow aiding sub-pipelines; the flow aiding main pipeline conveys gas for flow aiding to a coal bunker coal-falling section, a coal bunker variable-diameter section, a coal bunker hyperbolic section and a coal bunker transitional section through the sub-control pipelines respectively; electric control pneumatic butterfly valves for flow aiding, flow aiding nozzle groups and nozzles are arranged in the coal bunker coal-falling section, the coal bunker variable-diameter section, the coal bunker hyperbolic section and the coal bunker transitional section respectively; the signal acquisition system comprises a coal breaking signal sensor, a weight sensor and a rotating speed sensor; the control system comprises a metering instrument, a digital intelligent regulator and a programmable controller. The cyclone-type blockage removal equipment for the coal bunker of the thermal power plant has the technical characteristics of simple structure, low working vibration, high automation degree, low cost, quick and thorough blockage removal and the like.

Description

Technical field: [0001] The invention belongs to the technical field of coal transportation in power plants, and in particular relates to a blockage dredging device and a use method of a hyperbolic coal bunker. Background technique: [0002] In the boiler system of a thermal power plant, the normal operation of the pulverizing equipment is the key to the normal combustion of the boiler, and whether the coal supply is normal or not is the key that directly affects the pulverizing system and is the key to ensuring the stable combustion of the boiler. Therefore, during the normal operation of the boiler, the normal feeding of the hyperbolic raw coal bunker is very important. However, in the actual coal supply process, due to the high ash powder and high viscosity of the coal, debris is mixed in from time to time, especially in the rainy season, the moisture content of the raw coal is very high, and the humidity is very high, which increases the friction between the raw coal and...

AI Technical Summary

Problems solved by technology

Such as Chinese patent 103600938A, the biggest problem that this method exists is: in the air injection process, the quantity of solenoid valve is the same as the number of air injection ports, the air injection energy is concentrated, and the air injection time is longer. Difficult to blow off materials

The solenoid valve used to control the air injection has been proved by practice that in this working environment, coal dust can easily return to the solenoid valve through the nozzle, causing damage to the solenoid valve

There is no dust removal channel in the air injection pipeline, and the air injection pipe is prone to blockage and failure

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