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Method and device for treating waste incineration fly ash through cooperation of metallurgy waste residues

A waste incineration fly ash and co-processing technology, applied to the removal of solid waste, etc., can solve the problems of high capacity increase ratio, large land occupation, etc., and achieve the effect of reducing landfill volume

Inactive Publication Date: 2019-05-14
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the advantages of good treatment effect, short treatment time and wide application range, solidification and stabilization technology has become the main way of waste incineration fly ash treatment in my country at present, but the fly ash after solidification and stabilization treatment is generally sent to landfill for disposal Landfill, which has a high capacity increase ratio, requires a large amount of land resources, and poses a potential environmental risk to groundwater and surrounding soil

Method used

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  • Method and device for treating waste incineration fly ash through cooperation of metallurgy waste residues

Examples

Experimental program
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Effect test

Embodiment 1

[0032] like figure 1 As shown, this embodiment provides a device for co-processing waste incineration fly ash with metallurgical waste residue, which includes: a reactor 100 for melting, a fly ash storage bin 110 connected to the reactor 100, and a mineral auxiliary material bin 120 1. A nucleating agent bin 121, the reactor 100 is also connected with a flue gas collection bin 130, the flue gas collection bin 130 is respectively connected with a sintered ash storage bin 140 and a leaching tank 150, and the leaching tank 150 is connected with a separation tank 160. In this embodiment, the fly ash storage bin 110, the auxiliary mineral material bin 120, and the nucleating agent bin 121 are respectively connected to the reactor 100 through pipes, the reactor 100 is connected to the flue gas collection bin 130 through pipes, and the flue gas collection bin 130 is respectively passed through The pipeline is connected with the sintered ash storage bin 140 and the leaching tank 150, ...

Embodiment 2

[0037] The embodiment of the present application provides a method for co-processing waste incineration fly ash with metallurgical waste slag, which is carried out by using the device for co-processing waste incineration fly ash with metallurgical waste slag in Example 1, which includes the following steps:

[0038] Take 30kg of dust collected from the heat recovery system and flue gas purification system during operation of a waste incineration power plant in Wuhan, which is waste incineration fly ash. The composition of the waste incineration fly ash has been tested and mainly contains the following elements by mass percentage: 22.47% of Ca, 11.62% of Si, 15.7% of Cl, 4.81% of S, 3.45% of K, 2.64% of Na, 1.43% of Mg.

[0039] Add 30kg of waste incineration fly ash, 5kg of talc, 3kg of carbon black, 3kg of calcium carbonate, and 2kg of calcium oxide to 50kg of blast furnace slag (the composition of blast furnace slag mainly includes the following mass percentages after testin...

Embodiment 3

[0043] The embodiment of the present application provides a method for co-processing waste incineration fly ash with metallurgical waste slag, which is carried out by using the device for co-processing waste incineration fly ash with metallurgical waste slag in Example 1, which includes the following steps:

[0044] Take 40kg of dust collected from the heat recovery system and flue gas purification system during operation of a waste incineration power plant in Wuhan, which is waste incineration fly ash. The composition of the waste incineration fly ash has been tested and mainly contains the following elements by mass percentage: 22.47% of Ca, 11.62% of Si, 15.7% of Cl, 4.81% of S, 3.45% of K, 2.64% of Na, 1.43% of Mg.

[0045] Add 30kg of waste incineration fly ash, 5kg of talc, 3kg of carbon black, 3kg of calcium carbonate, and 2kg of calcium oxide to 65kg of blast furnace slag (the composition of blast furnace slag mainly includes the following mass percentages after testin...

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Abstract

The invention discloses a method and device for treating waste incineration fly ash through cooperation of metallurgy waste residues, and relates to the field of treatment of solid wastes. The methodfor treating the waste incineration fly ash through the cooperation of the metallurgy waste residues comprises the following steps that the waste incineration fly ash, mineral auxiliary materials anda crystallization nucleation agent are added into blast furnace slag to be subjected to melting separation, and secondary smoke gas and glass solidified bodies are obtained; and the secondary smoke gas and sintering machine head dedusting ash are mixed and then are introduced into treatment water to obtain a treating fluid, and the treating fluid is separated to obtain a filtrate and filter residues. According to the method for treating the waste incineration fly ash through the cooperation of the metallurgy waste residues, chlorine, silicon and aluminum elements can be effectively recycled under the premise of heavy metal solidification. The invention further provides the device for treating the waste incineration fly ash through the cooperation of the metallurgy waste residues based on the method for treating the waste incineration fly ash through the cooperation of the metallurgy waste residues.

Description

technical field [0001] The present application relates to the field of solid waste treatment, and in particular to a method and device for co-processing waste incineration fly ash with metallurgical waste slag. Background technique [0002] Waste incineration fly ash refers to the fine powder collected from the heat recovery system and flue gas purification system during the incineration of municipal solid waste. Because the waste incineration fly ash concentrates heavy metals and soluble salts with a high concentration However, it is regulated as hazardous waste; regulations, standards and management policies for the treatment and disposal of waste incineration fly ash are different in different regions. [0003] Due to the advantages of good treatment effect, short treatment time and wide application range, solidification and stabilization technology has become the main way of waste incineration fly ash treatment in my country at present, but the fly ash after solidificati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
Inventor 邵雁熊敬超宋自新郭华军刘子豪向浩刘颖
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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