A boiler coal feeding device for improving coal combustion efficiency

Abstract

The invention relates to a boiler coal feeding device capable of increasing coal combustion efficiency. The boiler coal feeding device comprises a coal hopper, wherein a roller is arranged at an outlet of the coal hopper; an elastic baffle plate is arranged under the roller and is obliquely arranged; an elastic assembly driving the elastic baffle plate to bounce up and down is arranged under the elastic baffle plate; a screening assembly is arranged under the elastic baffle plate and comprises an upper-layer screening plate and a lower-layer carrying plate; the upper end of the upper-layer screening plate is connected to the lower end of the elastic baffle plate in a lap-joint way; the lower end of the upper-layer screening plate is positioned right above a furnace bar, and an included angle between the upper-layer screening plate and the elastic baffle plate is 120 to 150 degrees; the lower-layer carrying plate is positioned under the upper-layer screening plate; the lower end of the lower-layer carrying plate is connected with the bottom end of the upper-layer screening plate; the upper end of the lower-layer carrying plate is positioned under the upper end of the upper-layer screening plate, and an included angle between the lower-layer carrying plate and the upper-layer screening plate is 20 to 30 degrees. Compared with the prior art, according to the boiler coal feeding device disclosed by the invention, the fuel coal can be more fully combusted, the heat efficiency is increased, energy is saved, the cost is reduced, and meanwhile, the electricity consumption and the fault rate of an auxiliary machine of the boiler are obviously reduced.

Description

technical field [0001] The invention relates to a boiler coal feeding device, in particular to a boiler coal feeding device which improves coal burning efficiency. Background technique [0002] The boiler coal feeding device that is used at present is to simply directly drop the coal into the fire grate from the coal scuttle, and then enter the furnace for combustion. Because the coal in the coal bucket contains certain particles, it will cause insufficient combustion and waste fuel during combustion. [0003] Chinese patent CN202598571U discloses a boiler fuel furnace combustion device, which includes a bucket body: a coal inlet is arranged on the top of the bucket body, and an elastic baffle for leveling coal is installed on the side below the coal inlet, and the lower end of the elastic baffle for leveling coal slides An adjustable coal gate is installed; a drum is installed in the middle of the bucket body, and a rib coal-pulling device is installed outside the drum. I...

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Problems solved by technology

However, the structure of the device is too complicated, and it is inconvenient to maintain or use

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