Uniform feeding device for biomass boiler

Abstract

The invention discloses a uniform feeding device for a biomass boiler, and relates to the technical field of boilers. The device comprises a feeding hopper, a bin connected with the feeding hopper anda discharging hopper connected with the bin, wherein the discharging hopper is used for being connected with a boiler, the feeding hopper is connected with the rear part of the top end of the bin, and the discharging hopper is connected with the front part of the bottom end of the bin; a conveying belt and a homogenizer are arranged in the bin, the conveying belt is in transmission connection with a transmission roller, the transmission roller is in transmission connection with a conveying motor through a speed reducer, and the homogenizer is positioned between the conveying belt and the feeding hopper; a water spraying pipe is arranged in the bin, the water spraying pipe is positioned at the upper part of the front side of the bin, the water spraying pipe is parallel to the width direction of the conveying belt, and a plurality of nozzles are uniformly distributed on the pipe wall of the water spraying pipe; and the outer wall of the discharge hopper is coated with a water-cooling jacket, and the water-cooling jacket is provided with a water inlet and a water outlet. According to the device, the feeding uniformity is better, and the conditions of material blocking and tempering combustion in the feeding device can be prevented to a great extent.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a uniform feeding device for a biomass boiler. Background technique [0002] Biomass boiler is a new type of energy-saving equipment. The equipment uses cheap biomass from a wide range of sources as fuel, and has the advantages of high thermal efficiency, no pollution, low emission, and reasonable structure. Compared with oil, electricity, and gas, it can save 30%-60% of operating costs, so it is widely used Used in various power plants, chemical industry, smelting and other industries. [0003] Because biomass fuel has the characteristics of different sizes and shapes, it is easy to cause the problems of uneven feeding and insufficient combustion of biomass boilers. It will affect the normal operation of the boiler. [0004] For some large boilers, due to the inhomogeneity of the feed material, the thermal efficiency of the boiler is seriously affected, and the emission of ai...

AI Technical Summary

Problems solved by technology

[0003] Because biomass fuel has the characteristics of different sizes and shapes, it is easy to cause the problems of uneven feeding and insufficient combustion of biomass boilers. Will affect the normal operation of the boiler

[0004] For some large boilers, due to the inhomogeneity of the feed material, the thermal efficiency of the boiler is seriously affected, and the emission of air pollutants is serious, and the quality of the boiler steam is also reduced.

Some existing boiler manufacturers use the screw feeding system to feed large biomass boilers, but users often complain about the high cost and high failure rate of the screw feeding system

In addition, due to the high temperature in the furnace, the connecting part of the feeding device and the boiler will be in a relatively high temperature environment, which will cause the hidden danger of backfire combustion inside the feeding device

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