Two-way feeding device for sticky coal mixed combustion

Abstract

The invention discloses a sticky coal blending combustion bi-directional feeding device and belongs to the field of sticky coal blending combustion feeding devices. The sticky coal blending combustion bi-directional feeding device comprises a coal bunker, two discharging ports are symmetrically formed along the axis of a bottom plate of the coal bunker, the lower portion of each discharge port is connected with a coal dropping pipe, and the bottom ends of the two coal dropping pipes communicate with each other. A splitter plate is arranged above the two discharging ports, and the two ends of the splitter plate are fixed to the side walls of the coal bunker. The coal bunker is internally provided with a rotary cutting body, the rotary cutting body comprises a base body and three cutters symmetrically arranged along the center of the base body, a power system is arranged below the center of the bottom plate of the coal bunker, and the power system is connected to the center of the base body. Materials in the coal bunker are alternately pushed by the rotary cutting body into the coal dropping pipes, the space for original materials is supplemented with materials on the upper portion under the action of gravity, first come first go of the materials is achieved, linking control is matched, a feeding device channel is kept smooth all the time, the materials come while the other materials go, and quantitative blocking preventing is achieved.

Description

Technical field [0001] The invention belongs to the field of coking coal blending and feeding devices, and specifically relates to a coking coal blending and bidirectional feeding device. Background technique [0002] Combining my country's energy strategic plan and the status quo of energy supply, coal for electricity is mostly added with coal and other low calorific value raw coal to supply boilers. Due to the physical properties of cohesive coal, during coal supply operation, the raw coal tends to adhere to the inner wall of the coal bunker, and the raw coal tends to agglomerate by itself or with the surrounding raw coal. The existing feeding devices basically use coal bunker hoppers to feed materials. The coal flow is likely to cause stacking pressure and confluence under the action of gravity, resulting in dense coal seams, which frequently occurs in the transportation process, causing the power generation unit to fail to operate. Stability affects the normal coal output an...

AI Technical Summary

Problems solved by technology

The existing feeding device basically adopts the coal bunker to feed the material. Under the action of gravity, the coal flow is easy to cause stacking pressure and confluence, resulting in dense coal seam. As a result, the phenomena of coal shedding and coal blocking frequently occur during the transportation process, resulting in poor operation of the generator set. Stable, affecting the normal coal output and economical operation of the unit

[0003] At the same time, most of the existing feeding devices use valves (such as gate valves) to control the storage and discharge of materials. The valves are used frequently, wear quickly and are easy to block, which increases the economic cost.

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