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Incinerator of dangerous waste containing easy-to-melt salt

A hazardous waste and incinerator technology, applied in the direction of incinerators, combustion chambers, combustion methods, etc., can solve the problem of reducing the incineration capacity of hazardous waste entering the furnace, shortening the life of refractory bricks and castables, and the erosiveness of refractory bricks and castables, etc. problems, to achieve the effect of environmental protection service life, prolong maintenance cycle and improve service life

Inactive Publication Date: 2020-02-14
BEIJING HANGHUA ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the incineration process in the rotary kiln, the non-uniform calorific value of the waste entering the furnace may lead to local high temperature or a sharp rise in temperature during the incineration process in the rotary kiln. The melting points of inorganic salts are different, and they will appear in a molten state at high temperatures, which will affect the Refractory bricks and castables cause serious erosive and reactive corrosion
[0004] This phenomenon will greatly shorten the life of refractory bricks and castables, and reduce the processing capacity of hazardous waste incineration.

Method used

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  • Incinerator of dangerous waste containing easy-to-melt salt
  • Incinerator of dangerous waste containing easy-to-melt salt

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a dangerous waste incinerator for easily melting salt, the incinerator is in the form of air cooling, and the incinerator includes an inner liner, a first steel shell 9, a second steel shell 10 and a third steel shell 11;

[0027] Building refractory bricks 1 on the inner surface of the first steel shell 9 and filling refractory castables 2 between adjacent refractory bricks 1 to form an inner lining;

[0028] The second steel shell 10 is set outside the first steel shell 9, and the gap between the second steel shell 10 and the first steel shell 9 is 80-120mm, that is, between the second steel shell 10 and the first steel shell 9 A cavity is formed, marked as the first cavity, and the first cavity forms the air heat exchange chamber 3;

[0029] The third steel shell 11 is set outside the second steel shell 10, and the gap between the third steel shell 11 and the second steel shell 10 is 80-120mm, that is, between the third steel shell 11 and ...

Embodiment 2

[0038] Such as figure 2 As shown, the incinerator is in the form of water spray cooling, and the incinerator includes an inner liner, a first steel shell 9 and a second steel shell 10;

[0039] Building refractory bricks 1 on the inner surface of the first steel shell 9 and filling refractory castables 2 between adjacent refractory bricks 1 to form an inner lining;

[0040] The second steel shell 10 is set outside the first steel shell 9, and the gap between the second steel shell 10 and the first steel shell 9 is 80-120mm, that is, between the second steel shell 10 and the first steel shell 9 A cavity is formed, and the cavity forms a cooling water heat exchange chamber 14;

[0041] On the side wall of the second steel shell 10, several pipelines communicated with the cooling water heat exchange chamber 14 are axially evenly distributed, which are marked as the third pipeline 12, and the third pipeline 12 has a water-cooled atomizing nozzle 13; At the lowest point of the k...

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Abstract

The invention relates to an incinerator of dangerous waste containing easy-to-melt salt and belongs to the technical field of dangerous waste incineration. According to the incinerator of the dangerous waste containing easy-to-melt salt, a cooling medium can be fed into a heat exchange chamber, the cooling medium conducts forced heat exchange with the outer walls of rotary kiln refractory bricks,the inner surface temperature of the rotary kiln refractory bricks is effectively lowered and is adjustable within a certain range, so that the easy-to-melt salt forms a slag layer protective layer inthe incinerator, slag is utilized to resist slag, and the situations that after the high-salt-content dangerous waste is melted, harmful elements of the dangerous waste corrode the inner wall of therotary kiln, and the service lives of the refractory bricks and castables are influenced are avoided; the adaptability, to the high-salt-content waste especially the waste containing easy-to-melt, ofthe rotary kiln is improved, and the maintenance period is prolonged; meanwhile, the heated hot air can participate in combustion, the fuel consumption is lowered, the heat utilization rate of the rotary kiln incinerator is improved; and then the purposes of saving energy, achieving environmental friendliness and prolonging the service life of equipment are achieved.

Description

technical field [0001] The invention relates to a dangerous waste incinerator for easily melting salt, which belongs to the technical field of hazardous waste incineration and is equipped with a rotary kiln device for forced cooling of brick walls (mode 1 air cooling; mode 2 water spray cooling). Mode 1 includes high-temperature refractory bricks, refractory castables, air heat exchange chamber, air swirl chamber, cold air inlet, hot air outlet, air supply regulating valve and slag layer. Mode 2 includes high-temperature refractory bricks, refractory castables, heat exchange chambers, water-cooled atomizing nozzles, cooling water inlet pipes, and slag layers. Background technique [0002] At present, the incineration technology of the secondary combustion chamber of the rotary kiln is widely used in the field of hazardous waste incineration. The pre-incineration materials have a wide range of sources, various types, and complex components. Many components to be incinerated c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00F23G5/20F23G5/44F23M5/02F23M5/08
CPCF23G5/20F23G5/44F23G7/00F23G2203/20F23M5/02F23M5/08
Inventor 汪涛李家兴李明杨志刚周儒昌孙明明雷月
Owner BEIJING HANGHUA ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD