CN106011459A - Method for preparing sintered ore by utilizing municipal solid waste incineration fly ash - Google Patents
Method for preparing sintered ore by utilizing municipal solid waste incineration fly ash Download PDFInfo
- Publication number
- CN106011459A CN106011459A CN201610390089.6A CN201610390089A CN106011459A CN 106011459 A CN106011459 A CN 106011459A CN 201610390089 A CN201610390089 A CN 201610390089A CN 106011459 A CN106011459 A CN 106011459A
- Authority
- CN
- China
- Prior art keywords
- fly ash
- sintering
- sintering deposit
- domestic garbage
- city domestic
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- 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
- 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
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention provides a method for preparing sintered ore by utilizing municipal solid waste incineration fly ash. The method comprises the following steps of uniformly mixing the fly ash, water and an auxiliary material to obtain a mixture; mixing the mixture, iron ore powder, a solvent, fuel, returning ore and water to obtain a sintered material; sintering the sintered material at the ignition temperature of 1,000 to 1,100 DEG C to obtain the sintered ore, wherein the auxiliary material comprises at least one of blast furnace gas ash, bof dust sludge and sulfate slag. Compared with the prior art, the method for preparing the sintered ore by utilizing the municipal solid waste incineration fly ash has the following beneficial effects that (1) valuable components such as CaO, Fe2O3, MgO and Al2O3 in the fly ash can be effectively utilized, and the components and the performance of the sintered ore are adjusted by utilizing the fly ash; (2) chloride in the fly ash can be effectively utilized, and the low-temperature pulverization property of the domestic sintered ore is improved by adding CaCl2 usually.
Description
Technical field
The invention belongs to useless process and metallurgical engineering technical field of endangering, harmless particularly to one high-volume
Change processes the sintering deposit Application way of fly ash from burning city domestic garbage.
Background technology
Along with the raising of China's Living consumption, the discharge capacity of municipal refuse municipal refuse with 10% with
On rate of increase cumulative year after year.At present, China has become rubbish in the world and stores up and pollute the most serious state
One of family, the accumulation volume of cargo in storage of domestic waste has reached 8,000,000,000 tons, the quick growing concern of municipal refuse
Become one of difficult problem of puzzlement China Sustainable Development in Future.Burning disposal is efficient as municipal refuse
One of process means, because it is innoxious, the advantage such as minimizing is notable oneself to become current developed country extensive
The Assessment of MSW Disposal Technologies used.Along with the popularization day by day of incineration technology, China's incineration treatment of garbage
The quantity of factory and facility increases the most year by year, but its burn produce flying dust due to containing two English,
Heavy metal and chloride etc., greatly limit its recycling or harmless treatment.Special
That rubbish separating treatment technology not yet popularizes in China, two English in flying dust, heavy metal and
It is high and unstable that chlorides etc. pollute constituent element content, it is achieved utilize or the difficulty of harmless treatment is bigger.
China is the first in the world Chan Gang big country, and the equipment of iron and steel metallurgical industry, technique, technical merit are whole
Reach world-class levels on body.Along with the quick growth of China's crude steel yield, iron and steel metallurgical industry
It is faced with resource, the energy and the ambient pressure of sternness.In recent years, Iron and Steel Enterprises in China is paying attention to iron and steel
On the basis of the variety development of product and increased quality, focus more on the exploitation of energy-conserving and emission-cutting technology and answer
With, obtain remarkable effect, but the energy-saving and emission-reduction only focusing on self are inadequate, have certain
Limitation, also should represent China's steel industry and undertake more Environment Protection Responsibility and social function, by steel
Ferrum enterprise is really dissolved in the big industrial chain of recycling economy.
Summary of the invention
The invention provides the sintering deposit Application way of a kind of fly ash from burning city domestic garbage.The method profit
The dynamic conditions good with high-temperature metallurgical reaction device and iron and steel enterprise modernization environmental protection equipment and technology
Realize recycling and the harmless treatment of city garbage burning flying ash, solve what its stacking was brought
Land occupation resource and relevant problem of environmental pollution, thus alleviate The Surroundings in Cities load.
The present invention is achieved by the following technical solutions:
A kind of method utilizing fly ash from burning city domestic garbage to prepare sintering deposit, it is characterised in that bag
Include following steps:
After flying dust, water and adjuvant mix homogeneously, obtain compound；
By described compound and Iron Ore Powder, flux, fuel, return mine and water mixes, sintered
Material；
Described sintering feed is sintered under the firing temperature of 1000～1100 DEG C, obtains sintering deposit；
Wherein, at least one during described adjuvant includes blast furnace dust, bof sludge, sulfate slag.
Preferably, in described adjuvant, the percetage by weight of each component is respectively as follows:
Blast furnace dust: 0～100%；
Bof sludge: 0～100%；
Sulfate slag: 0～100%.
Preferably, described compound also comprises agent for fixing and adhesive.
Preferably, in the preparation of described sintering feed, compound, Iron Ore Powder, flux, fuel,
The dosage returned mine is respectively 3～15%, 30～70%, 3～15% of raw material gross weight, 3～5% and
10～25%.
Preferably, during described flux is quick lime, limestone, dolomite, serpentine extremely
Few one, described fuel is coal dust, described in return mine as hot returning ore or cold return mine.
Preferably, described coal dust is anthracite and/or coke powder.
Preferably, in described sintering process, the stone thickness of feed layer of sinter mixture is
500～750mm.
Preferably, described sintering deposit dual alkalinity is 1.8～2.2.
Compared with prior art, the present invention has a following beneficial effect:
1, the valuable component in flying dust, such as CaO, Fe can effectively be utilized2O3、MgO、Al2O3
Deng；
2, the chloride in flying dust can effectively be utilized, to improve its low temperature powder performance；
3, two English components in flying dust can effectively be cleared up, can be by high toxicity equivalent dioxin group in flying dust
Point；
4, can effectively control the heavy metal contamination in flying dust, part heavy metal element is volatized into burning
In knot flue gas and blast furnace gas, reclaimed by existing environmental protection equipment and processed；Part heavy metal unit
Element enters in blast furnace slag, realizes its harmless treatment through dilution, shrend solidification；
5, treating capacity is sufficiently large, as a example by 10,000,000 tons of yield iron and steel enterprises, as with 1% flying dust
The amount of allocating into (accounting for the weight/mass percentage composition of sintering deposit) calculates, and can process flying dust every year more than 150,000 tons.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in this
The technical staff in field is further appreciated by the present invention, but limits the present invention the most in any form.Should refer to
Go out, to those skilled in the art, without departing from the inventive concept of the premise,
Some deformation and improvement can also be made.These broadly fall into protection scope of the present invention.
Embodiment 1
Present embodiments provide a kind of method utilizing fly ash from burning city domestic garbage to prepare sintering deposit,
Specifically include following steps:
One, compound: by material according to percetage by weight than for flying dust 10%, adhesive 20% and water
70% mixing, and room temperature maintenance 20 hours, obtain compound；
Two, sintering feed: by Iron Ore Powder 70%, quick lime 3%, limestone 1%, dolime
2%, coal dust 5%, return mine 13%, mill scale 1% and the compound 5% one prepared with step one
Play mixing, obtain sintering feed；
Three, sintering: be laid on sintering pallet by the sintering feed in step 2 and be sintered, detection is burnt
The property indices in knot ore deposit.Wherein, stone thickness of feed layer is 700mm, and sintering ignition temperature is
1100℃。
Sintering test shows, compared with the sintering deposit not adding incineration of refuse flyash, and sintering deposit rotary drum
Intensity index improves 0.1 percentage point, and yield rate improves 1.6 percentage points, sintering deposit low-temperature reduction
Pulverization rate declines 1.3 percentage points, and reduction degree improves 2.28 percentage points.
Embodiment 2
One, compound: by material according to percetage by weight ratio for water 20%, flying dust 20%, bonding
Agent 60% mixes, and at room temperature maintenance 24 hours, obtains compound；
Two, sintering feed: by Iron Ore Powder 50%, bof sludge 20%, quick lime 3%, limestone 1
%, dolime 2%, coal dust 5%, return mine 13%, mill scale 1% and making in step one
The compound 5% obtained mixes together, obtains sintering feed；
Three, sintering: be laid on sintering pallet by the sintering feed in step 2 and be sintered, detection is burnt
The property indices in knot ore deposit.Wherein, stone thickness of feed layer is 700mm, and sintering ignition temperature is
1100℃。
Sintering test shows, compared with the sintering deposit not adding incineration of refuse flyash, and sintering deposit rotary drum
Intensity index improves 0.1 percentage point, and yield rate improves 1.6 percentage points, sintering deposit low-temperature reduction
Pulverization rate declines 1.3 percentage points, and reduction degree improves 2.28 percentage points.
Embodiment 3
One, compound: by material according to percetage by weight than the weight proportion for material be: water 20%,
Flying dust 20%, binding agent 60% mixes, and at room temperature maintenance 24 hours, obtains compound；
Two, sintering feed: by Iron Ore Powder 50%, bof sludge 10%, sulfate slag 10%, quick lime
3%, limestone 1%, dolime 2%, coal dust 5%, return mine 13%, mill scale 1% and
Mix together with the compound 5% prepared in step one, obtain sintering feed；
Three, sintering: be laid on sintering pallet by the sintering feed in step 2 and be sintered, detection is burnt
The property indices in knot ore deposit.Wherein, stone thickness of feed layer is 700mm, and sintering ignition temperature is
1100℃。
Embodiment 4
One, compound: by material according to percetage by weight than the weight proportion for material be: water 20%,
Flying dust 20%, sulfate slag 60% mixes, and at room temperature maintenance 24 hours, obtains compound；
Two, sintering feed: by Iron Ore Powder 60%, quick lime 3%, limestone 1%, dolime
2%, coal dust 5%, return mine 13%, mill scale 1% and the compound 15% prepared with step one
Mix together, obtain sintering feed；
Three, sintering: be laid on sintering pallet by the sintering feed in step 2 and be sintered, detection is burnt
The property indices in knot ore deposit.Wherein, stone thickness of feed layer is 700mm, and sintering ignition temperature is
1100℃。
Embodiment 5
One, compound: by material according to percetage by weight than the weight proportion for material be: water 30%,
Flying dust 20%, high methane ash 50% mixes, and at room temperature maintenance 24 hours, is mixed
Material；
Two, sintering feed: by Iron Ore Powder 70%, quick lime 3%, limestone 1%, dolime
2%, coal dust 5%, return mine 15%, mill scale 1% and the compound 3% one prepared with step one
Play mixing, obtain sintering feed；
Three, sintering: be laid on sintering pallet by the sintering feed in step 2 and be sintered, detection is burnt
The property indices in knot ore deposit.Wherein, stone thickness of feed layer is 700mm, and sintering ignition temperature is
1100℃。
Embodiment 6
One, compound: by material according to percetage by weight than the weight proportion for material be: water 30%,
Flying dust 30%, bof sludge 40% mixes, and at room temperature maintenance 24 hours, is mixed
Material；
Two, sintering feed: by Iron Ore Powder 55%, quick lime 3%, limestone 3%, dolime
3%, coal dust 5%, return mine 17%, mill scale 5% and the compound 9% one prepared with step one
Play mixing, obtain sintering feed；
Three, sintering: be laid on sintering pallet by the sintering feed in step 2 and be sintered, detection is burnt
The property indices in knot ore deposit.Wherein, stone thickness of feed layer is 700mm, and sintering ignition temperature is
1100℃。
In sum, only presently preferred embodiments of the present invention, not it is used for limiting the present invention and implements
Scope, all do according to the shape described in scope of the invention as claimed, structure, feature and spirit
Impartial change and modification, all should be included in scope of the presently claimed invention.
Claims (8)
1. one kind utilizes the method that fly ash from burning city domestic garbage prepares sintering deposit, it is characterised in that
Comprise the steps:
After flying dust, water and adjuvant mix homogeneously, obtain compound；
By described compound and Iron Ore Powder, flux, fuel, return mine and water mixes, sintered
Material；
Described sintering feed is sintered under the firing temperature of 1000～1100 DEG C, obtains sintering deposit；
Wherein, at least one during described adjuvant includes blast furnace dust, bof sludge, sulfate slag.
Fly ash from burning city domestic garbage is utilized to prepare the side of sintering deposit the most as claimed in claim 1
Method, it is characterised in that in described adjuvant, the percetage by weight of each component is respectively as follows:
Blast furnace dust: 0～100%；
Bof sludge: 0～100%；
Sulfate slag: 0～100%.
Fly ash from burning city domestic garbage is utilized to prepare the side of sintering deposit the most as claimed in claim 1
Method, it is characterised in that also comprise agent for fixing and adhesive in described compound.
Fly ash from burning city domestic garbage is utilized to prepare the side of sintering deposit the most as claimed in claim 1
Method, it is characterised in that in the preparation of described sintering feed, compound, Iron Ore Powder, flux, fuel,
The dosage returned mine is respectively 3～15%, 30～70%, 3～15% of raw material gross weight, 3～5% and
10～25%.
5. the fly ash from burning city domestic garbage that utilizes as described in claim 1 or 4 prepares sintering deposit
Method, it is characterised in that described flux is in quick lime, limestone, dolomite, serpentine
At least one, described fuel is coal dust, described in return mine as hot returning ore or cold return mine.
Fly ash from burning city domestic garbage is utilized to prepare the side of sintering deposit the most as claimed in claim 5
Method, it is characterised in that described coal dust is anthracite and/or coke powder.
Fly ash from burning city domestic garbage is utilized to prepare the side of sintering deposit the most as claimed in claim 1
Method, it is characterised in that in described sintering process, the stone thickness of feed layer of sinter mixture is
500～750mm.
Fly ash from burning city domestic garbage is utilized to prepare the side of sintering deposit the most as claimed in claim 1
Method, it is characterised in that described sintering deposit dual alkalinity is 1.8～2.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390089.6A CN106011459A (en) | 2016-06-03 | 2016-06-03 | Method for preparing sintered ore by utilizing municipal solid waste incineration fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390089.6A CN106011459A (en) | 2016-06-03 | 2016-06-03 | Method for preparing sintered ore by utilizing municipal solid waste incineration fly ash |
Publications (1)
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|---|---|
| CN106011459A true CN106011459A (en) | 2016-10-12 |
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|---|---|---|---|
| CN201610390089.6A Pending CN106011459A (en) | 2016-06-03 | 2016-06-03 | Method for preparing sintered ore by utilizing municipal solid waste incineration fly ash |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159678A (en) * | 2017-05-12 | 2017-09-15 | 中南大学 | Agglomeration for iron mine collaboration processing garbage flying ash process bioxin control methods |
| CN107413816A (en) * | 2017-05-12 | 2017-12-01 | 中南大学 | A kind of method that garbage flying ash cooperates with recycling treatment with metallurgical dust |
| CN107557572A (en) * | 2017-08-25 | 2018-01-09 | 包头钢铁（集团）有限责任公司 | A kind of preparation method of sintering deposit |
| CN108070723A (en) * | 2016-11-15 | 2018-05-25 | 中冶长天国际工程有限责任公司 | A kind of method of incineration of refuse flyash, municipal sludge and the metallurgy sintered recycling of Ferrous Metallurgy dedusting ash |
| CN108486387A (en) * | 2018-04-16 | 2018-09-04 | 广东环境保护工程职业学院 | A kind of lead smelts method and the application for the treatment of incinerated fly ash of domestic garbage with cooperation |
| CN108715930A (en) * | 2018-06-25 | 2018-10-30 | 中南大学 | A kind of discarded desulfurizing agent is applied to the processing method of sintering |
| CN108796215A (en) * | 2018-06-25 | 2018-11-13 | 中南大学 | A kind of processing method of discarded desulfurizing agent |
| CN109055729A (en) * | 2018-09-21 | 2018-12-21 | 中国科学院城市环境研究所 | A kind of method of sludge organism charcoal resource utilization |
| CN112359203A (en) * | 2020-09-27 | 2021-02-12 | 武汉科技大学 | Method for regulating and controlling sinter quality and dioxin generation by utilizing refuse-derived carbon |
| CN114105343A (en) * | 2020-08-26 | 2022-03-01 | 宝山钢铁股份有限公司 | Method for cooperatively treating desulfurization ash by desulfurization wastewater treatment system and application |
| CN114292969A (en) * | 2021-12-31 | 2022-04-08 | 湖南博一环保科技有限公司 | Method for co-processing waste incineration fly ash by blast furnace ironmaking |
| CN117732831A (en) * | 2024-02-06 | 2024-03-22 | 华衍环保产业有限公司甘肃分公司 | Compatible additive for inhibiting volatilization of chloride salt in fly ash sintering process and fly ash treatment method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070723A (en) * | 2016-11-15 | 2018-05-25 | 中冶长天国际工程有限责任公司 | A kind of method of incineration of refuse flyash, municipal sludge and the metallurgy sintered recycling of Ferrous Metallurgy dedusting ash |
| CN107159678B (en) * | 2017-05-12 | 2019-07-19 | 中南大学 | The control of dioxins method of agglomeration for iron mine collaboration processing garbage flying ash process |
| CN107413816A (en) * | 2017-05-12 | 2017-12-01 | 中南大学 | A kind of method that garbage flying ash cooperates with recycling treatment with metallurgical dust |
| CN107159678A (en) * | 2017-05-12 | 2017-09-15 | 中南大学 | Agglomeration for iron mine collaboration processing garbage flying ash process bioxin control methods |
| CN107557572A (en) * | 2017-08-25 | 2018-01-09 | 包头钢铁（集团）有限责任公司 | A kind of preparation method of sintering deposit |
| CN108486387A (en) * | 2018-04-16 | 2018-09-04 | 广东环境保护工程职业学院 | A kind of lead smelts method and the application for the treatment of incinerated fly ash of domestic garbage with cooperation |
| CN108796215A (en) * | 2018-06-25 | 2018-11-13 | 中南大学 | A kind of processing method of discarded desulfurizing agent |
| CN108715930A (en) * | 2018-06-25 | 2018-10-30 | 中南大学 | A kind of discarded desulfurizing agent is applied to the processing method of sintering |
| CN109055729A (en) * | 2018-09-21 | 2018-12-21 | 中国科学院城市环境研究所 | A kind of method of sludge organism charcoal resource utilization |
| CN109055729B (en) * | 2018-09-21 | 2020-07-31 | 中国科学院城市环境研究所 | Method for resource utilization of sludge biochar |
| CN114105343A (en) * | 2020-08-26 | 2022-03-01 | 宝山钢铁股份有限公司 | Method for cooperatively treating desulfurization ash by desulfurization wastewater treatment system and application |
| CN114105343B (en) * | 2020-08-26 | 2023-06-13 | 宝山钢铁股份有限公司 | Method for cooperatively treating desulfurization ash by desulfurization wastewater treatment system and application |
| CN112359203A (en) * | 2020-09-27 | 2021-02-12 | 武汉科技大学 | Method for regulating and controlling sinter quality and dioxin generation by utilizing refuse-derived carbon |
| CN112359203B (en) * | 2020-09-27 | 2022-03-15 | 武汉科技大学 | Method for regulating and controlling sinter quality and dioxin generation by utilizing refuse-derived carbon |
| CN114292969A (en) * | 2021-12-31 | 2022-04-08 | 湖南博一环保科技有限公司 | Method for co-processing waste incineration fly ash by blast furnace ironmaking |
| CN117732831A (en) * | 2024-02-06 | 2024-03-22 | 华衍环保产业有限公司甘肃分公司 | Compatible additive for inhibiting volatilization of chloride salt in fly ash sintering process and fly ash treatment method |
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Effective date of registration: 20170605 Address after: 200439 Shanghai city Baoshan District Yixian Road No. 2816 building floor room A006 Applicant after: Bao Group Environmental Resources Technology Co., Ltd. Address before: 201900 No. 889 Yang Yang Road, Shanghai, Baoshan District Applicant before: Baogang Development Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |