Rice husk conveying device for coal-fired boiler

Abstract

The invention discloses a rice husk conveying device for a coal-fired boiler and belongs to the technical field of auxiliary equipment for boiler feeding. The rice husk conveying device comprises a conveying tower connected with a rice husk room and the coal-fired boiler through pipelines. The conveying tower comprises a negative-pressure suction hopper and a bin. The negative-pressure suction hopper communicates with the bin through an air lock. A feeding guide pipe is arranged on the side, close to the lower portion of a discharging opening, at the bottom of the bin, and a fan is mounted on the other side of the bin. An air outlet of the fan carries out intermittent air supply towards the feeding guide pipe. The upper portion of the negative-pressure suction hopper communicates with one end of a conveying pipe and one end of an air suction pipe. The other end of the conveying pipe stretches into the rice husk room and communicates with a suction main pipe. The other end of the air suction pipe communicates with an induced draft fan. An exhaust pipe is arranged on the induced draft fan. The conveying speed of rice husks is continuous and stable, and conveying cost is reduced. Feeding speed can be controlled, the stable fuel quantity can be provided for the coal-fired boiler, and the feeding guide pipe can be prevented from being blocked. Coal resources are saved, the use cost is reduced, and environment friendliness is achieved.

Description

technical field [0001] The invention belongs to the technical field of auxiliary equipment for feeding boilers, and in particular relates to a rice husk conveying device for a coal-fired boiler. Background technique [0002] Coal-fired steam boilers refer to boilers that use coal as fuel. Since the combustion of coal in the boiler not only releases a large amount of heat, but also produces a large amount of smoke and dust, which not only seriously pollutes the surrounding environment, but also has a relatively high cost of use. In view of the defect that coal-fired boilers can only use raw coal as fuel at present, after a large number of tests, it is a feasible technical method to mix rice husks in coal-fired boilers, and rice husks are a huge agricultural waste in my country's agricultural production. Most of the treatment methods currently used are incineration in the wild or stacking anywhere, which will cause environmental pollution and waste of organic energy. In order ...

AI Technical Summary

Problems solved by technology

[0002] Coal-fired steam boiler refers to a boiler that uses coal as fuel. Since coal burns in the boiler, in addition to releasing a large amount of heat, it also produces a large amount of smoke and dust, which not only seriously pollutes the surrounding environment, but also has a relatively high cost of use.

In view of the defect that coal-fired boilers can only use raw coal as fuel at present, after a large number of tests, it is a feasible technical method to mix rice husks in coal-fired boilers, and rice husks are a huge agricultural waste in my country's agricultural production. At present, most of the treatment methods used are incineration in the wild or stacking anywhere, which will cause environmental pollution and waste of organic energy.

In order to recycle these discarded rice husks, they are usually used as fuel for boiler combustion to reduce the consumption of coal resources and prevent environmental pollution. In this process, the transportation and feeding of rice husks are generally carried by manual transportation or auger transportation. It is impossible to control the speed of conveying and feeding, which may lead to insufficient fuel or insufficient combustion of rice husks, which seriously affects the stability of coal-fired steam boilers

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