Environment-friendly coal-fired boiler

Abstract

The invention discloses an environment-friendly coal-fired boiler which comprises a boiler main body; the upper part of the boiler main body is connected with a first air inlet pipeline; the lower part of the boiler main body is connected with a second air inlet pipeline; the first air inlet pipeline and the second air inlet pipeline communicate with an air inlet main pipeline; a first blower device is arranged at the air inlet end of the air inlet main pipeline; a mesh-shaped partition plate dividing the interior of the boiler main body into an upper region and a lower region is arranged below the second air inlet pipeline; a part, below the mesh-shaped partition plate, of the boiler main body is connected with an exhaust pipeline; a flue gas purification device is arranged on the exhaust pipeline; an ash collection device is arranged at the bottom of the boiler main body and below the exhaust pipeline; and the flue gas purification device comprises a flue gas pipeline, a second blower device, a fog making device and a filtration device. Through rational design, a coal burning utilization ratio of the coal-fired boiler is raised, the discharge amount of carbon monoxide is reduced, generated flue gas is effectively purified and cooled before being discharged to the atmosphere, and environmental pollution is reduced substantially.

Description

technical field [0001] The invention relates to a coal-fired boiler, in particular to an environment-friendly coal-fired boiler. Background technique [0002] Coal-fired boilers use coal as fuel. The main component of coal is carbon. Carbon will produce two different products in two combustion states. When oxygen is sufficient and carbon is completely burned, the product produced is carbon dioxide. When oxygen is insufficient, carbon is incomplete. The product of combustion is carbon monoxide. The same coal, when completely burned, produces much more heat than incompletely burned. In order to make as much coal as possible in the boiler completely [0003] Combustion, increase the heat generated by coal combustion, improve the utilization rate of coal, and reduce the pollution of carbon monoxide emissions to the atmosphere. The existing technology proposes a coal-fired boiler that improves the combustion utilization rate of coal-fired boilers, so that the flue gas after com...

AI Technical Summary

Problems solved by technology

[0004] However, when the flue gas of the above-mentioned coal-fired boiler is discharged through the exhaust passage, it is inevitable that a large amount of dust will be deposited in the exhaust passage. Although it can be cleaned by setting up a soot cleaning device, it will increase the workload, and at the same time, the dust and sulfur dioxide in the flue gas will be discharged. It will also cause great pollution to the environment

Images