CN106964628A - A kind of incineration of refuse flyash harmless disposal method - Google Patents
A kind of incineration of refuse flyash harmless disposal method Download PDFInfo
- Publication number
- CN106964628A CN106964628A CN201710081730.2A CN201710081730A CN106964628A CN 106964628 A CN106964628 A CN 106964628A CN 201710081730 A CN201710081730 A CN 201710081730A CN 106964628 A CN106964628 A CN 106964628A
- Authority
- CN
- China
- Prior art keywords
- fused salt
- incineration
- flying dust
- refuse flyash
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010881 fly ash Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 22
- 150000003839 salts Chemical class 0.000 claims abstract description 62
- 239000000428 dust Substances 0.000 claims abstract description 57
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 53
- 239000002893 slag Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 239000011780 sodium chloride Substances 0.000 claims abstract description 26
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 24
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 11
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- 239000002956 ash Substances 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 238000005660 chlorination reaction Methods 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 2
- 235000011151 potassium sulphates Nutrition 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 125000005587 carbonate group Chemical group 0.000 claims 1
- 238000003672 processing method Methods 0.000 abstract description 5
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 abstract description 3
- 238000002386 leaching Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 10
- 230000001925 catabolic effect Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- 206010033307 Overweight Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 235000020825 overweight Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of incineration of refuse flyash harmless disposal method.Involved method includes：Incineration of refuse flyash is added in molten state sodium chloride and reacted, flying dust fused salt slag and escaping gas are produced in course of reaction；The flying dust fused salt slag generated in the course of reaction is deposited in molten state sodium chloride bottom from molten state sodium chloride, is filled after the flying dust fused salt slag for collecting bottom；Escaping gas is produced in the course of reaction and collects heavy metal therein by condensing, remaining gas discharge；Fused salt auxiliary agent is added with the incineration of refuse flyash.The processing method technique of the present invention is simple, and flying dust volume reduces 50%, and flying dust fused salt slag weight reduces 50%, and volume, weight volume reduction rate are obvious.
Description
Technical field
The invention belongs to the dangerous disposition of solid waste of field of environment protection and comprehensive utilization, and in particular to a kind of rubbish burns
Burn flying dust harmless disposal method.
Background technology
Traditional incineration of refuse flyash has many disposal technologies.It is specifically divided into four major classes：Separation and leaching technology；It is heat-treated skill
Art, solidification stabilization technique and other technologies.But recycling, innoxious, minimizing and economical rationality, peace can not be met simultaneously
Complete efficient actual requirement.
Solidify Stabilized technology, not only increase-volume, and solidification stabilizing material price height enterprise, add landfill storage comprehensive cost
Also it is very high；
Separation extraction class technical matters is complicated, and equipment is expensive, and cost is high；
There is high temperature, high energy consumption and maximum discharge in heat treatment class technology, but in actual applications, incineration of refuse flyash
There is the innoxious and minimizing of some superiority, especially smelting technology fairly obvious in terms of recycling, minimizing after heat treatment,
Developed country is applied.
As the improvement of people's living standards, the raising of environmental consciousness, the chemical composition of incineration of refuse flyash also there occurs
Obvious change, outstanding feature is high salinity and high oxidation calcium content so that traditional fusion technology is met difficulty, and is not being added
Plus in the case of cosolvent, the melting temperature of incineration of refuse flyash adds secondary flying ash processing, high energy more than 1500 DEG C
There is unprecedented technical difficulty in consumption, smelting process.And even if using sintering technology, sintering temperature is very high, the salt in flying dust
Divide to directly affect is needed to carry out washing desalting processing before sintered article quality, sintering, and cost is improved, complex process, and sintering system
The Leaching of Heavy Metals risk of product is still present.
Firing technique is mixed using cement after washing, cement production capacity surplus, Cement clinker buring incorporation is small, and kiln tail chlorion is dense
Degree is improved and the hidden danger of kiln tail preheater skinning increases, and villaumite reclaims, filters many technical problems such as hardened so that cement
Mix burning and also face many difficulties.
Separating beavy metal, it is the innoxious key technology of incineration of refuse flyash to decompose bioxin, lacks cost-effective skill
Art method is the outstanding problem faced both at home and abroad.
The content of the invention
For domestic and international the deficiencies in the prior art, the present invention provides a kind of low cost, minimizing and innoxious process for treating.
Incineration of refuse flyash harmless disposal method provided by the present invention includes：Incineration of refuse flyash is added into molten state
Reacted in sodium chloride；The flying dust fused salt slag generated in course of reaction is deposited in molten state sodium chloride bottom from molten state sodium chloride
Portion, the flying dust fused salt slag for collecting bottom is filled；Escaping gas is produced in course of reaction and collects therein heavy by condensing
Metal, remaining gas discharge；Fused salt auxiliary agent is added with the incineration of refuse flyash；The fused salt auxiliary agent is potassium chloride, chlorination
Aluminium, iron chloride, calcium chloride, magnesium chloride, sodium sulphate, potassium sulfate, sodium carbonate, potassium carbonate, carbonate and one kind of sulfate or two
The composition of the above is planted, the addition of the fused salt auxiliary agent is the 1-20% of sodium chloride quality.
In a kind of embodiment, flying dust additive is added with incineration of refuse flyash of the invention；The flying dust additive
For mixture more than one or both of bentonite, silicon ash, flyash and metakaolin, the addition of the flying dust additive
Quality is the 0-20wt% of incineration of refuse flyash quality；
In a kind of embodiment, reaction temperature of the invention is 600-1000 DEG C, and the fused salt reaction time is 0.5-8 hours.
In a kind of embodiment, remaining gas of the invention washs discharge by sodium hydroxide lye.
Compared with prior art, the beneficial effect of flyash treatment method for waste incineration of the invention is：
(1) processing method technique of the invention is simple, flying dust volume reduction 50%, fused salt slag weight reduction 50%, volume,
Weight volume reduction rate is obvious；
(2) processing method of the invention, low compared with fusion method heat treatment temperature, energy consumption is low.
(3) processing method of the invention, fused salt cost is low, and integrated treatment operating cost is low；
(4) processing method of the invention, environmental protection, no secondary environmental pollution.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Embodiment
The poisonous flying dust that the incineration of refuse flyash of the present invention obtains for consumer waste incineration or medical refuse burning.Without
Cross it is any processing be directly added into fused salt carry out clear up reaction.
Present invention reaction terminates rear flying dust fused salt and becomes fused salt slag to separate discharge from melt, household garbage field can be sent to fill out
Bury.
Escaping gas is by condensing after collection during fused salt reaction of the present invention, and heavy metal Pb, Cr, Cd, Cu, Zn pass through wet
Method Metallurgical resourcesization are utilized, qualified discharge after a small amount of gas is handled by gas purifications such as sodium hydroxide solutions.
The specific embodiment provided the following is inventor, to be further explained explanation to technical scheme.
Embodiment 1：
Certain garbage burning factory flying dust is subjected to Leaching of Heavy Metals concentration and carries out test result such as table 1 below, it can be seen that Cd,
Pb severe overweights, belong to danger wastes.
The original fly-ash heavy metal leaching concentration of table 1 is contrasted with national standard
With reference to Fig. 1, by 100 grams of incineration of refuse flyash, 6 grams of fused salt auxiliary agent calcium chloride adds 850 DEG C of molten state sodium chloride
Middle reaction 3 hours, the flying dust fused salt slag generated in course of reaction is discharged from molten state sodium chloride and is deposited in molten state chlorination
Filled after sodium bottom, the flying dust fused salt slag for collecting bottom, escaping gas is produced in course of reaction and collects it by condensing
In heavy metal, remaining gas discharge；
The Leaching of Heavy Metals concentration of measurement flying dust fused salt slag see the table below 2, there it can be seen that flying dust fused salt slag is fully achieved
The requirements of household refuse landfill sites pollutant catabolic gene indexs.
Heavy metal ion leaching concentration is contrasted with original flying dust and national standard after the fused salt reaction treatment of table 2
Embodiment 2：
By 100 grams of incineration of refuse flyash, 5 grams of flying dust additive silicon ash, 8 grams of fused salt auxiliary agent calcium chloride adds 900 DEG C of chlorine
Change in sodium fusion salt and react 3 hours, the flying dust fused salt slag generated in course of reaction is discharged from molten state sodium chloride and is deposited in molten
Melt state sodium chloride bottom, filled after the flying dust fused salt slag for collecting bottom, generation escaping gas passes through cold in course of reaction
It is solidifying to collect heavy metal therein, remaining gas discharge；
The Leaching of Heavy Metals concentration of measurement flying dust fused salt slag see the table below 3, there it can be seen that flying dust fused salt slag is fully achieved
The requirements of household refuse landfill sites pollutant catabolic gene indexs.
Heavy metal ion leaching concentration is contrasted with original flying dust and national standard after the fused salt reaction treatment of table 3
Embodiment 3：
By 100 grams of incineration of refuse flyash, 10 grams of flying dust additive flyash, 5 grams of melt auxiliary agent calcium chloride adds 1000 DEG C
Sodium chloride fused salt in react 1 hour, the flying dust fused salt slag generated in course of reaction is discharged and precipitated from molten state sodium chloride
Filled in behind molten state sodium chloride bottom, the flying dust fused salt slag for collecting bottom, escaping gas is produced in course of reaction and is led to
Cross condensation and collect heavy metal therein, remaining gas discharge；
The Leaching of Heavy Metals concentration of flying dust fused salt slag see the table below 4, there it can be seen that flying dust fused salt slag fullys meet life
The requirement of refuse landfill pollutant catabolic gene index living.
Heavy metal ion leaching concentration is contrasted with original flying dust and national standard after the fused salt reaction treatment of table 4
Embodiment 4：
By 100 grams of incineration of refuse flyash, 10 grams of flying dust additive bentonite, 7 grams of melt auxiliary agent aluminium chloride adds 600 DEG C
Sodium chloride fused salt in react 4 hours, the flying dust fused salt slag generated in course of reaction is discharged and precipitated from molten state sodium chloride
Filled in behind molten state sodium chloride bottom, the flying dust fused salt slag for collecting bottom, escaping gas is produced in course of reaction and is led to
Cross condensation and collect heavy metal therein, remaining gas discharge；
The Leaching of Heavy Metals concentration of flying dust fused salt slag see the table below 5, there it can be seen that flying dust fused salt slag fullys meet life
The requirement of refuse landfill pollutant catabolic gene index living.
Heavy metal ion leaching concentration is contrasted with original flying dust and national standard after the fused salt reaction treatment of table 5
Embodiment 5：
By 100 grams of incineration of refuse flyash, 9 grams of flying dust additive metakaolin, 16 grams of fused salt auxiliary agent sodium carbonate adds 950
DEG C sodium chloride fused salt in react 6 hours, the flying dust fused salt slag generated in course of reaction is discharged and sunk from molten state sodium chloride
Form sediment in molten state sodium chloride bottom, filled after the flying dust fused salt slag for collecting bottom, escaping gas is produced in course of reaction
Heavy metal therein is collected by condensing, remaining gas discharge；
The Leaching of Heavy Metals concentration of flying dust fused salt slag see the table below 6, there it can be seen that flying dust fused salt slag fullys meet life
The requirement of refuse landfill pollutant catabolic gene index living.
Heavy metal ion leaching concentration is contrasted with original flying dust and national standard after the fused salt reaction treatment of table 6
Embodiment 6：
By 100 grams of flying dust, 9 grams of flying dust additive flyash, 16 grams of melt auxiliary agent potassium chloride adds 650 DEG C of sodium chloride
Reacted 8 hours in fused salt, the flying dust fused salt slag generated in course of reaction is discharged from molten state sodium chloride and is deposited in molten state
Filled after sodium chloride bottom, the flying dust fused salt slag for collecting bottom, escaping gas is produced in course of reaction and is received by condensing
Collect heavy metal therein, remaining gas discharge；
The Leaching of Heavy Metals concentration of flying dust fused salt slag see the table below 7, there it can be seen that flying dust fused salt slag fullys meet life
The requirement of refuse landfill pollutant catabolic gene index living.
Heavy metal ion leaching concentration is contrasted with original flying dust and national standard after the fused salt reaction treatment of table 7
Claims (4)
1. a kind of incineration of refuse flyash harmless disposal method, it is characterised in that method includes：
Incineration of refuse flyash is added in molten state sodium chloride and reacted；
The flying dust fused salt slag generated in course of reaction is deposited in molten state sodium chloride bottom from molten state sodium chloride, collects bottom
Flying dust fused salt slag filled；
Escaping gas is produced in course of reaction and collects heavy metal therein by condensing, remaining gas discharge；
Fused salt auxiliary agent is added with the incineration of refuse flyash；The fused salt auxiliary agent is potassium chloride, aluminium chloride, iron chloride, chlorination
Calcium, magnesium chloride, sodium sulphate, potassium sulfate, sodium carbonate, potassium carbonate, one or more kinds of compositions of carbonate and sulfate,
The addition of the fused salt auxiliary agent is the 1-20% of sodium chloride quality.
2. incineration of refuse flyash harmless disposal method as claimed in claim 1, it is characterised in that the incineration of refuse flyash
In be added with flying dust additive；The flying dust additive is one or both of bentonite, silicon ash, flyash and metakaolin
Mixture above, the addition quality of the flying dust additive is the 0-20wt% of incineration of refuse flyash quality.
3. incineration of refuse flyash harmless disposal method as claimed in claim 1, it is characterised in that the reaction temperature is
600-1000 DEG C, the fused salt reaction time is 0.5-8 hours.
4. incineration of refuse flyash harmless disposal method as claimed in claim 1, it is characterised in that the remaining gas is passed through
Sodium hydroxide lye washing discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081730.2A CN106964628A (en) | 2017-02-15 | 2017-02-15 | A kind of incineration of refuse flyash harmless disposal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081730.2A CN106964628A (en) | 2017-02-15 | 2017-02-15 | A kind of incineration of refuse flyash harmless disposal method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106964628A true CN106964628A (en) | 2017-07-21 |
Family
ID=59334364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710081730.2A Pending CN106964628A (en) | 2017-02-15 | 2017-02-15 | A kind of incineration of refuse flyash harmless disposal method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106964628A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038872A (en) * | 2018-01-15 | 2019-07-23 | 东海大学 | The method for handling incinerated flying ash and waste |
| CN111359136A (en) * | 2020-04-03 | 2020-07-03 | 连云港新江环保材料有限公司 | Dioxin detoxification chelating agent for fly ash and preparation method thereof |
| CN114251670A (en) * | 2021-12-20 | 2022-03-29 | 上海域德环保工程有限公司 | Hazardous waste incineration fly ash fused salt and flue gas treatment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822886A (en) * | 2010-05-26 | 2010-09-08 | 刘阳生 | Secondary gasification method of fly ash in waste incineration |
| CN101885584A (en) * | 2010-07-20 | 2010-11-17 | 刘阳生 | Method for treating waste incineration fly ash by electric melting |
| US20150314155A1 (en) * | 2012-12-05 | 2015-11-05 | Solvay Sa | Treatment of Sodic Fly Ash for Reducing the Leachability of Selenium Contained Herein |
| CN106378352A (en) * | 2016-11-18 | 2017-02-08 | 华中科技大学 | Fused salt heat treatment method for rubbish incineration fly ash |
-
2017
- 2017-02-15 CN CN201710081730.2A patent/CN106964628A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822886A (en) * | 2010-05-26 | 2010-09-08 | 刘阳生 | Secondary gasification method of fly ash in waste incineration |
| CN101885584A (en) * | 2010-07-20 | 2010-11-17 | 刘阳生 | Method for treating waste incineration fly ash by electric melting |
| US20150314155A1 (en) * | 2012-12-05 | 2015-11-05 | Solvay Sa | Treatment of Sodic Fly Ash for Reducing the Leachability of Selenium Contained Herein |
| CN106378352A (en) * | 2016-11-18 | 2017-02-08 | 华中科技大学 | Fused salt heat treatment method for rubbish incineration fly ash |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038872A (en) * | 2018-01-15 | 2019-07-23 | 东海大学 | The method for handling incinerated flying ash and waste |
| CN111359136A (en) * | 2020-04-03 | 2020-07-03 | 连云港新江环保材料有限公司 | Dioxin detoxification chelating agent for fly ash and preparation method thereof |
| CN114251670A (en) * | 2021-12-20 | 2022-03-29 | 上海域德环保工程有限公司 | Hazardous waste incineration fly ash fused salt and flue gas treatment device |
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Application publication date: 20170721 |