Coal-fired boiler and coal gas ignition mode thereof

Abstract

The invention discloses a coal-fired boiler and an ignition mode thereof. The coal-fired boiler comprises a boiler body, wherein a group of supporting seats are arranged at the bottom of the boiler body, and a first ash falling hole and a second ash falling hole which communicate with the boiler body are respectively formed in the outer sides of the supporting seats; and a first air blowing hole and a second air blowing hole which communicate with the boiler body are further formed in the inner side of the supporting seats, a pulverized coal inlet is formed in one side of the boiler body, a coal gas igniter is arranged on one side adjacent to the pulverized coal inlet, of the boiler body, and a smoke exhaust pipeline is further arranged at the top of the boiler body. The coal-fired boileris suitable for small outdoor heat supply or water supply engineering, convenient to operate and maintain, low in economic cost and convenient to apply and popularize.

Description

technical field [0001] The invention relates to the technical field of heating boiler equipment, in particular to a gas ignition method for a coal-fired boiler. Background technique [0002] The current industrial boilers, especially those used in power plants and large chemical plants, also have a great impact on the environment, and because of their large volume and consumption, they are suitable for large industrial projects, but not suitable for small outdoor public heating and hot water supply Usage requirements. [0003] And at present, the boilers of large coal-fired units in China use plasma ignition or oil gun ignition to start and ignite. Since the furnace temperature of the boiler is low at the initial stage of cold ignition, no matter whether diesel oil or pulverized coal (plasma ignition) is used, there is a certain degree of unburned However, unburned pulverized coal or atomized diesel oil may stick to the heating surface at the rear of the boiler, which may e...

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Problems solved by technology

[0005] In order to solve the above problems, the current industrial boilers, especially those used in power plants and large chemical plants, have a great impact on the environment, and because of their large volume and consumption, they are suitable for large industrial projects, but not suitable for small outdoor public heating and In view of existing problems such as the demand for hot water supply and safety risks and hidden dangers caused by unreasonable ignition methods, the invention provides a coal-fired boiler

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