Mixed firing boiler of industrial waste and domestic waste

Abstract

The invention discloses a mixed firing boiler of industrial waste and domestic waste. The mixed firing boiler comprises a steel frame, combined combustion equipment, a furnace chamber, a tail flue gas duct, an ash falling device and a deslagging device, wherein the combined combustion equipment comprises a rotary kiln and a grate; the industrial waste and the domestic waste enter from a feeding port of the head of the rotary kiln; the tail of the rotary kiln is connected with an inlet of the furnace chamber; an outlet of the furnace chamber is connected with the tail flue gas duct; the furnace chamber and the tail flue gas duct are mounted on the steel frame; the ash falling device is arranged below the tail flue gas duct; the grate is arranged below the furnace chamber; the deslagging device is mounted below the grate; and the furnace chamber comprises a combustion chamber, a reburning chamber and a triple-pass. According to the structure disclosed by the invention, the industrial waste and the domestic waste can be efficiently treated and the problem of co-firing of various kinds and components of industrial waste and domestic waste can be solved. Besides, the problem of small space of the deslagging chamber is solved, so that continuous and efficient operation of the boiler is guaranteed.

Description

technical field [0001] The invention belongs to the field of thermal power and environmental protection, and in particular relates to a boiler for mixed combustion of industrial waste and domestic waste. Background technique [0002] With the development of industrial production, the amount of industrial waste is increasing day by day. There are various types of industrial waste and complex components. They are usually treated by rotary kiln incinerators. However, rotary kiln incinerators also have some obvious disadvantages: small amount of waste treatment, large amount of fly ash, The slag incineration is not complete, and the combustion is difficult to control. For domestic waste, the composition of the waste fluctuates greatly, and the calorific value changes greatly due to factors such as region, season, and weather. Generally, the grate type incinerator is used for treatment. This type of furnace has mature technology, stable and reliable operation, and a large process...

AI Technical Summary

Problems solved by technology

[0002] With the development of industrial production, the amount of industrial waste is increasing day by day. There are various types of industrial waste and complex components. They are usually treated by rotary kiln incinerators. However, rotary kiln incinerators also have some obvious disadvantages: small amount of waste treatment, large amount of fly ash, The slag incineration is not complete, and the combustion is not easy to control

For domestic waste, the composition of the waste fluctuates greatly, and the calorific value changes greatly due to factors such as region, season, and weather. Generally, the grate type incinerator is used for treatment. This type of furnace has mature technology, stable and reliable operation, and a large processing capacity. It can generate steam for steam supply and power generation, but the application of the grate furnace is also limited, and it is not suitable for industrial waste with high calorific value and some difficult-to-burn substances

[0003] In addition, due to the limited space in the traditional slag discharge room, construction vehicles cannot enter and exit normally, and can only enter by reversing at both ends of the slag discharge room

At the same time, during the maintenance period of the slag crane, the space between the slag outlet is narrow, which poses safety hazards and seriously affects work efficiency

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