Wall-attached air system for preventing high temperature corrosion of water cooled wall of garbage incinerator

Abstract

The invention discloses a wall-attached air system for preventing high temperature corrosion of a water cooled wall of a garbage incinerator. A wall-attached air supply device comprises a chimney, a slag pump, a controllable heat exchanger, an air pipe and an air duct which are connected in sequence through pipelines. Necking devices are wall-attached air bellows symmetrically arranged on the inner front wall and the inner rear wall of a first flue; the corresponding surfaces of the two wall-attached air bellows are streamline-type curved surfaces; the arc line of the lower curved surface of the streamline-type curved surfaces and the wall surfaces of the front wall and the rear wall are in smooth transition; the included angle between the air outlet angles of the air outlets of the wall-attached air bellows relative to the wall surfaces of the front wall and the rear wall is 170-175 DEG; and air blown by the air outlets forms an airstream layer along the inner wall surfaces of the front wall and the rear wall and ascends along the water cooled wall, so that the oxidizing atmosphere is guaranteed, the temperature of areas near the water cooled wall is relatively reduced, and the high temperature corrosion is prevented. The streamline-type curved surfaces of the wall-attached air bellows can reduce wear of unburned particles on the water cooled wall and prevent combustion of the unburned particles in the positions close to the wall.

Description

technical field [0001] The invention relates to equipment for preventing high-temperature corrosion of the water wall of a garbage incinerator, in particular to a wall-attached air system for preventing high-temperature corrosion of the water wall of a garbage incinerator. Background technique [0002] The increasing perfection of energy mining and high-tech utilization, and the continuous development of the world economy indicate the progress of human science and technology and economy. A fixed source of pollution, therefore, we have to pay attention to the effective treatment of urban waste. Currently, there are three conventional methods of urban waste disposal: landfill, composting, and incineration. Compared with the first two methods, the incineration method is widely used at home and abroad because of its high degree of harmlessness, volume reduction and resource utilization of garbage. [0003] With the continuous improvement of waste incineration power generation ...

AI Technical Summary

Problems solved by technology

However, considering the current situation of existing garbage incinerators in my country, the above methods are still not ideal, because the methods used are all for the purpose of slowing down high-temperature corrosion as much as possible, but the problem of high-temperature corrosion still exists after a long time

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