CN207130283U - A kind of Integrated Processing Unit of metallurgical dust and slag - Google Patents
A kind of Integrated Processing Unit of metallurgical dust and slag Download PDFInfo
- Publication number
- CN207130283U CN207130283U CN201720799921.8U CN201720799921U CN207130283U CN 207130283 U CN207130283 U CN 207130283U CN 201720799921 U CN201720799921 U CN 201720799921U CN 207130283 U CN207130283 U CN 207130283U
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- CN
- China
- Prior art keywords
- slag
- processing unit
- metallurgical dust
- hearth furnace
- rotary hearth
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- 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
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- 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
- Y02P10/25—Process efficiency
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a kind of Integrated Processing Unit of metallurgical dust and slag, including for by the slag after wet-milling and metallurgical dust processing for dry bulb raw material processing system, for dry bulb is reduced directly rotary hearth furnace, for carrying out water quenching, the mill ore magnetic selection system of mill choosing and the iron powder cuber that iron block is made for the reduced iron powder that choosing obtains will to be ground to reduzate DRI；The Integrated Processing Unit also includes energy recovery system, the energy recovery system includes waste heat boiler, sack cleaner and the blower fan being sequentially connected, wherein, the gas outlet connection of the air inlet and rotary hearth furnace of waste heat boiler, heat recovery is carried out to rotary hearth furnace flue gas, the air inlet of sack cleaner and the gas outlet of waste heat boiler connect, the Zinc oxide powder in collection rotary hearth furnace flue gas.The Integrated Processing Unit realizes the integrated treatment to metallurgical dust and slag, reduces and handles the comprehensive method of investment of both solid wastes, reduce floor space, improve resource, energy utilization rate.
Description
Technical field
A kind of Integrated Processing Unit of metallurgical dust and slag is the utility model is related to, belongs to the comprehensive of metallurgical dust and slag
Close handling process field.
Background technology
Dust From Steel Industry and slag are caused by the production processes such as ironmaking, steel-making, are steel and iron industry most species, composition
Most miscellaneous solid waste.They are both a kind of pollutant, are a kind of potential resource and the energy again.Dust From Steel Industry and slag
Yield typically accounts for the 10% and 12% of output of steel respectively.The method of the slag of China's processing at present has the vexed method of heat, hot application method, water
Method of quenching etc.；The processing method of Ferrous Metallurgy dust is directly to return sintering system.
The product reduced iron produced using traditional Technology of Steel Slag Processing (such as vexed method of heat, hot application method, water quenching)
Block %TFe content is low, and compared with steel scrap or pelletizing, various impurity and content of beary metal are high in product, and operating environment is severe.
Metallurgical dust is returned into sintering system using traditional extensive processing mode to re-use, sinter quality will be caused
Decline, harmful element a large amount of circulation collections in sintering-blast furnace process, influence smooth operation of furnace, this be using sacrifice the life of the blast furnace as
Cost handles the primary means of dust.
The above processing method can not realize the integrated treatment by Dust From Steel Industry and slag, and poor processing effect, no
The comprehensive method of investment can be reduced, reduce floor space, resource, the utilization rate of the energy can not be improved.
Utility model content
Purpose of utility model：The utility model for Dust From Steel Industry present in prior art and slag processing effect it is poor,
A kind of problems such as resource utilization is low, there is provided Integrated Processing Unit of metallurgical dust and slag.
Technical scheme：The Integrated Processing Unit of a kind of metallurgical dust and slag described in the utility model, including connect successively
What is connect is used for the slag after wet-milling and metallurgical dust processing for the raw material processing system of dry bulb, for being carried out directly also to dry bulb
Former rotary hearth furnace, for carrying out water quenching, the mill ore magnetic selection system of mill choosing to reduzate DRI and for will grind what choosing obtained
The iron powder cuber of iron block is made in reduced iron powder；The Integrated Processing Unit of the metallurgical dust and slag also includes energy recovery system
System, the energy recovery system include waste heat boiler, sack cleaner and the blower fan being sequentially connected, wherein, the air inlet of waste heat boiler
Mouth is connected with the gas outlet of rotary hearth furnace, carries out heat recovery, the air inlet and waste heat boiler of sack cleaner to rotary hearth furnace flue gas
Gas outlet connection, collect rotary hearth furnace flue gas in Zinc oxide powder.
Processing procedure is as follows：Dry bulb is made into raw material processing system with metallurgical dust in slag after wet-milling, and dry bulb enters
It is reduced directly in rotary hearth furnace, for reduzate DRI after water quenching, mill ore magnetic selection, briquetting, product is high-quality reduced iron powder
Block；Rotary hearth furnace flue gas enters afterheat boiler system and carries out energy recovery, and Zinc oxide powder is collected subsequently into sack cleaner.
Wherein, raw material processing system includes dispensing equipment, mixing apparatus, balling equipment and the drying plant being sequentially connected.
Wet-milling slag carries out pelletizing after being mixed with metallurgical dust in raw material processing system, the control of compound pelletizing moisture exists
10% or so.
The granularity of the qualified dry bulb of above-mentioned raw materials processing system production is 8~16mm, moisture 2%.
Preferably, into the wet-milling slag of raw material processing system, granularity is more than 80% for the slag accounting of 100 mesh.
Preferably, the Integrated Processing Unit of the metallurgical dust and slag also includes what is be connected with raw material processing system charging aperture
Closed strength tank car, the closed strength tank car is used to transporting and storing metallurgical dust, so as to avoid dust from causing secondary pollution.
More excellent, waste heat boiler can connect generator or steam pipe system, and the heat reclaimed from rotary hearth furnace flue gas is changed
For steam, for steam-electric power or it is incorporated to steam pipe system.
Beneficial effect：Compared with prior art, the utility model has the advantage of：Metallurgical dust and steel of the present utility model
Dry bulb is first made in metallurgical dust and slag by the Integrated Processing Unit of slag, is obtained after being then reduced directly through mill ore magnetic selection, briquetting
High-quality reduced iron powder agglomates, meanwhile, rotary hearth furnace flue gas reclaims oxidisability powder after waste heat boiler reclaims heat through sack cleaner,
Realize the integrated treatment to metallurgical dust and slag, reduce handle both solid wastes the comprehensive method of investment, reduce floor space,
Improve resource, energy utilization rate；Moreover, the apparatus structure is simple, energy-saving and environmental protection significant effect, efficient process smelter
Annual a large amount of caused solid waste, are turned waste into wealth, product quality is high, widely used, is truly realized the circulation of resource
Utilize.
Brief description of the drawings
Fig. 1 is the structural representation of the Integrated Processing Unit of a kind of metallurgical dust of the present utility model and slag.
Embodiment
The technical solution of the utility model is described further below in conjunction with the accompanying drawings.
Such as Fig. 1, the Integrated Processing Unit of a kind of metallurgical dust and slag of the invention, including the Feedstock treating being sequentially connected
System 1, rotary hearth furnace 2, mill ore magnetic selection system 3 and iron powder cuber 4, in addition to energy recovery system.
Raw material processing system 1 may include dispensing equipment, mixing apparatus, balling equipment and the drying plant being sequentially connected, wet
After mill slag (wherein, granularity meet 100 mesh slag account for more than 80%) with metallurgical dust through dispensing, mix (compound
Pelletizing moisture is controlled 10% or so), pelletizing, obtain dry bulb after green-ball low temperature drying process, the granularity of qualified dry bulb for 8~
16mm, moisture are 2% or so.
To avoid dust from causing secondary pollution, the Integrated Processing Unit of metallurgical dust and slag of the present utility model can also wrap
Closed strength tank car is included, closed strength tank car is connected with the charging aperture of raw material processing system 1, for transporting and storing metallurgical dust.
Rotary hearth furnace 2 is used to carry out reduction treatment to obtained dry bulb, goes out the dry bulb of raw material processing system 1 directly through rotary hearth furnace
2 charging aperture, which enters, carries out reduction reaction in rotary hearth furnace 2, obtain reduction treatment product DRI (DRI) and rotary hearth furnace cigarette
Gas.Charger can be provided between raw material processing system 1 and rotary hearth furnace 2, charger can send dry bulb made from raw material processing system 1
Enter in rotary hearth furnace 2.
Mill ore magnetic selection system 3 is used to carry out water quenching, mill to the reduction treatment product DRI (DRI) for going out rotary hearth furnace 2
Ore deposit, magnetic separation, obtain reduced iron powder；Iron powder cuber 4 is used to the reduced iron powder for mill ore magnetic selection system 3 going back for high-quality is made
Former iron block.
Meanwhile caused rotary hearth furnace flue gas carries out the energy through energy recovery system during reduction reaction in rotary hearth furnace 2
Further recycle.Energy recovery system includes waste heat boiler 5, sack cleaner 6 and the blower fan 7 being sequentially connected, waste heat pot
The air inlet of stove 5 is connected with the gas outlet of rotary hearth furnace 2.Rotary hearth furnace flue gas is 1100 DEG C or so, first reclaims heat through waste heat boiler 5
Amount, subsequently into sack cleaner 6, the Zinc oxide powder in rotary hearth furnace flue gas is collected by bag-type dust 6, last flue gas
It is discharged into through blower fan 7 in air.
Wherein, waste heat boiler 5 can connect generator or steam pipe system, and the heat reclaimed from rotary hearth furnace flue gas is used to steam
Vapour generates electricity or is incorporated to steam pipe system.
Metallurgical dust and slag are integrated using the Integrated Processing Unit of metallurgical dust of the present utility model and slag
The technical process of processing is as follows：Slag after metallurgical dust and wet-milling enters in raw material processing system 1, through dispensing, mixes, makes
Ball, green-ball low temperature drying process handle to obtain qualified dry bulb, qualified dry bulb that raw material processing system 1 produces (8mm≤granularity≤
16mm, moisture~2% or so) by being reduced directly in charger feeding rotary hearth furnace 2, mill is entered after reduzate DRI water quenchings
Ore deposit magnetic separation system 3, high-quality reduced iron powder agglomates is obtained through iron powder cuber 4；Meanwhile rotary hearth furnace flue gas enters into waste heat boiler 5
Row energy recovery, air is discharged into by blower fan 7 subsequently into after the collection zinc oxide dust of sack cleaner 6.
The Integrated Processing Unit of a kind of metallurgical dust and slag of the present utility model can be to metallurgical dust and slag General Office
Reason, reduce and handle the comprehensive method of investment of both solid wastes, reduce floor space, improve resource, energy utilization rate；Moreover, the device
It is simple in construction, energy-saving and environmental protection significant effects, efficient process smelter it is annual it is a large amount of caused by solid waste, is become and is given up
For treasured, product quality is high, widely used, is truly realized recycling for resource.
Claims (6)
1. the Integrated Processing Unit of a kind of metallurgical dust and slag, it is characterised in that be used for including what is be sequentially connected by after wet-milling
Raw material processing system (1) of slag and the metallurgical dust processing for dry bulb, the rotary hearth furnace for being reduced directly to dry bulb
(2), for carrying out water quenching to reduzate DRI and grinding the mill ore magnetic selection system (3) of choosing and the reduction for mill choosing to be obtained
The iron powder cuber (4) of iron block is made in iron powder；The Integrated Processing Unit of the metallurgical dust and slag also includes energy recovery system
System, the energy recovery system include waste heat boiler (5), sack cleaner (6) and the blower fan (7) being sequentially connected, wherein, waste heat pot
The air inlet of stove (5) is connected with the gas outlet of rotary hearth furnace (2), carries out heat recovery to rotary hearth furnace flue gas, sack cleaner (6)
Air inlet is connected with the gas outlet of waste heat boiler (5), collects Zinc oxide powder in rotary hearth furnace flue gas.
2. the Integrated Processing Unit of metallurgical dust according to claim 1 and slag, it is characterised in that the Feedstock treating
System (1) includes dispensing equipment, mixing apparatus, balling equipment and the drying plant being sequentially connected.
3. the Integrated Processing Unit of metallurgical dust according to claim 1 and slag, it is characterised in that the Feedstock treating
The granularity of the qualified dry bulb of system (1) production is 8~16mm, moisture 2%.
4. the Integrated Processing Unit of metallurgical dust according to claim 1 and slag, it is characterised in that enter the raw material
In the wet-milling slag of processing system (1), granularity is more than 80% for the slag accounting of 100 mesh.
5. the Integrated Processing Unit of metallurgical dust according to claim 1 and slag, it is characterised in that the processing unit
Also include be connected with raw material processing system (1) charging aperture, the closed strength tank car for shipping storage metallurgical dust.
6. the Integrated Processing Unit of metallurgical dust according to claim 1 and slag, it is characterised in that the waste heat boiler
(5) generator or steam pipe system are connected, the heat reclaimed from rotary hearth furnace flue gas is used for steam-electric power or is incorporated to steam pipe system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720799921.8U CN207130283U (en) | 2017-07-04 | 2017-07-04 | A kind of Integrated Processing Unit of metallurgical dust and slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720799921.8U CN207130283U (en) | 2017-07-04 | 2017-07-04 | A kind of Integrated Processing Unit of metallurgical dust and slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207130283U true CN207130283U (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720799921.8U Expired - Fee Related CN207130283U (en) | 2017-07-04 | 2017-07-04 | A kind of Integrated Processing Unit of metallurgical dust and slag |
Country Status (1)
| Country | Link |
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| CN (1) | CN207130283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111575492A (en) * | 2020-06-30 | 2020-08-25 | 中冶南方工程技术有限公司 | Comprehensive treatment method for zinc-containing dust and steel slag |
-
2017
- 2017-07-04 CN CN201720799921.8U patent/CN207130283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111575492A (en) * | 2020-06-30 | 2020-08-25 | 中冶南方工程技术有限公司 | Comprehensive treatment method for zinc-containing dust and steel slag |
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| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190102 Granted publication date: 20180323 |
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| PD01 | Discharge of preservation of patent | ||
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Date of cancellation: 20220102 Granted publication date: 20180323 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20180704 |