Vertical single-drum refuse-incinerating waste heat boiler

Abstract

The invention relates to a vertical single-drum refuse-incinerating waste heat boiler, mainly comprising a high-temperature smoke inlet, a front cooling chamber, a rear cooling chamber, a vertical well flue, a super-heater, a tube box type economizer and a drum; the boiler provided by the invention utilizes a diaphragm type water-cooling wall smoke cooling chamber, a diaphragm type water-cooling wall enclosure vertical-well flue, and a steel tube box type economizer; all smoke channels are in sealed welding structures; sealing property of the boiler is high to ensure that airs do not leak out from the boiler, and harmful gas in smoke does not leak. Because the smoke cooling chamber is arranged in front of the super-heater, high-temperature smoke passes through the cooling chamber at first, and then flows into the super-heater so as to reduce temperature of inlet smoke of the super-heater, and prevent the super-heater from high temperature corrosion by chlorine-containing gas generated by burning refuses.

Description

technical field [0001] The invention belongs to garbage treatment equipment, in particular to a novel waste heat boiler used in a pyrolysis gasification garbage incinerator. Background technique [0002] With the development of cities and the improvement of people's living standards, the generation of urban waste has increased significantly. The annual generation of urban waste in my country has reached 150 million tons, and it is increasing at a rate of 8% to 10% every year. Two-thirds of the country's 655 cities are surrounded by garbage. By 2015, my country's annual output of municipal solid waste will reach 210 million tons. Waste incineration power generation technology has become the most promising way of comprehensive utilization of urban waste due to its advantages of complete harmlessness, large capacity reduction, and full resource utilization. [0003] The following problems exist in the operation of existing waste incineration waste heat boilers: most of the bo...

AI Technical Summary

Problems solved by technology

[0003] The existing waste incineration waste heat boilers have the following problems in operation: most of the boilers are arranged vertically and horizontally with double drums, occupying a large area

The boiler is sealed against the furnace wall, the sealing effect is poor, there are problems of harmful gas leakage and low heat recovery rate during operation

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