Apparatus and method for treating incineration exhaust gas of dry-wet mixed solid waste

A solid waste and tail gas treatment technology, applied in combustion methods, separation methods, chemical instruments and methods, etc., can solve the problems of low pollutant removal rate, high investment and operating costs, and achieve inhibition of dioxin generation and improvement. Absorption efficiency, fouling avoidance effect

Inactive Publication Date: 2005-04-13
南京东大能源环保科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Technical problem: The present invention aims to provide a dry-wet mixed solid waste incineration tail gas treatment device and treatment method to solve the problems of high investment and operation cos

Method used

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  • Apparatus and method for treating incineration exhaust gas of dry-wet mixed solid waste
  • Apparatus and method for treating incineration exhaust gas of dry-wet mixed solid waste

Examples

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example 1

[0037] Example 1: The 180°C flue gas from the incinerator enters the flue gas reheater, and the temperature drops to 150°C. In the outlet flue of the flue gas reheater, spray activated carbon adsorbent, and the adsorbent comes from the adsorbent storage tank 11. The activated carbon is fully mixed with the flue gas, and enters the evaporative cooler 1 after 2 to 3 seconds. In the evaporative cooler 1, an atomizing nozzle 15 is arranged, and the absorption slurry coming from the settling tank 6 enters the evaporative cooler 1 by the jet pump 7, and mixes with the flue gas after atomization, so that the flue gas is rapidly cooled to 125°C, and then enters the evaporative cooler 1. Bag filter reactor 2. The ash removed by the evaporative cooler 1 and the bag filter reactor 2 enters the ash storage tank 3 . The flue gas from the bag filter reactor 2 enters the bubbling fluidized reactor 5 . The absorption liquid in the bubbling fluidized reactor 5 is sprayed by the circulation p...

example 2

[0038] Example 2: The 160°C flue gas from the incinerator enters the flue gas reheater, and the temperature drops to 130°C. In the outlet flue of the flue gas reheater, activated carbon adsorbent is sprayed, and the adsorbent comes from the adsorbent storage tank 11. The activated carbon is fully mixed with the flue gas, and enters the evaporative cooler 1 after 2 to 3 seconds. In the evaporative cooler 1, an atomizing nozzle 15 is arranged, and the absorption slurry coming from the settling tank 6 enters the evaporative cooler 1 by the jet pump 7, and mixes with the flue gas after atomization, so that the flue gas rapidly cools down to 110°C, and then enters the evaporative cooler 1. Bag filter reactor 2. The ash removed by the evaporative cooler 1 and the bag filter reactor 2 enters the ash storage tank 3 . The flue gas from the bag filter reactor 2 enters the bubbling fluidized reactor 5 . The absorption liquid in the bubbling fluidized reactor 5 is sprayed by the circula...

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Abstract

The present invention is apparatus and process of treating tail gas from incinerating mixed wet and dry solid waste. The treating apparatus includes evaporating cooler, bag type filtering reactor, bubbling fluidization reactor, fume re-heater, adsorbent storage and ash storage connected together. The treating process includes heating to purify the fume from garbage incinerator in the re-heater; completing the dry purifying or fume in the evaporating cooler; and absorbing the fume after dry purification in the bubbling fluidization reactor with absorbing liquid.

Description

technical field [0001] The invention relates to a dry-wet mixed type solid waste incineration tail gas treatment device and treatment method, belonging to the technical field of environmental protection equipment manufacturing. technical background [0002] With the acceleration of industrialization and urbanization in various countries in the world, solid waste has increased dramatically. At present, the total amount of waste discharged globally has reached 2 billion tons per year. The uncontrolled stacking, discharge, random landfilling and dumping of solid waste not only occupies a large amount of land, but also pollutes the soil, water and the atmosphere, destroys the ecological environment, and endangers human health. The environmental hazards and potential risks of solid waste, especially hazardous waste The crisis has increasingly become one of the most prominent environmental problems in the world. The problem of solid waste pollution in...

Claims

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Application Information

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IPC IPC(8): B01D53/34F23G5/44F23J15/02
Inventor 仲兆平金保升黄亚继兰计香
Owner 南京东大能源环保科技有限公司
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