CN106636658A - Heat utilization device in dezincification process of gas ashes and method of heat utilization device - Google Patents
Heat utilization device in dezincification process of gas ashes and method of heat utilization device Download PDFInfo
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- CN106636658A CN106636658A CN201611225564.0A CN201611225564A CN106636658A CN 106636658 A CN106636658 A CN 106636658A CN 201611225564 A CN201611225564 A CN 201611225564A CN 106636658 A CN106636658 A CN 106636658A
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- inner tube
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- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to the technical field of gas ash dezincification and discloses a heat utilization device in a dezincification process of gas ashes. The heat utilization device comprises a rotary kiln, wherein a feeding device is arranged in a feeding hole of the rotary kiln; a smoke vent of the rotary kiln is connected with a dust collector through a cooler; the cooler comprises a transversely arranged long tube, and a smoke inlet is arranged at one end of the long tube; the smoke inlet is communicated with the smoke vent of the rotary kiln through a pipe and a smoke outlet is arranged in the outer end of the long tube; the smoke outlet is communicated with the dust collector through a pipe; and a plurality of inverted U-shaped tubes are uniformly arranged in the middle of the long tube, openings in two ends of each inverted U-shaped tube communicate with the long tube, an inner tube is arranged in each inverted U-shaped tube, one end of each inner tube communicates with air through an air pump and the other end of each inner tube sequentially passes through the corresponding inverted U-shaped tube and penetrates out of an outlet of the inner tube on the long tube, and each inner tube, which penetrates out of the outlet of the inner tube, is connected with the feeding device through a branch hose. According to the heat utilization device, raw materials of the gas ashes are heated by using the heat in the dezincification process to remove moisture.
Description
Technical field
The present invention relates to the Btu utilization dress during gas ash dezincification technical field, more particularly to a kind of gas ash dezincification
Put and its method.
Background technology
Gas ash is one kind that the fine stove dirt produced during blast fumance molten iron is formed Jing after dry bag-type dust-precipitator
Fine material, gas ash is particulate material, complex chemical composition, in addition to iron, also containing imperfect combustion charcoal and zinc,
The metal oxides such as lead, tin, bismuth, cadmium, indium.Gas ash is all direct plungeed in blast furnace and sintered again by existing many steel plant,
Iron in for reclaiming gas ash, but, content higher zinc oxide reduced gas in blast furnace are reduced into zinc fume infiltration
Furnace lining, makes furnace lining abnormal expansion, embrittlement cause the life of the blast furnace to shorten；Therefore, gas ash is returned to before blast furnace needs to reduce gas ash
The content of middle zinc oxide.
Reducing the processing method of the content of zinc oxide in gas ash at present mainly has kiln process and rotary hearth furnace method.Wherein,
Kiln process is that the continuous rotary kiln for rotating is made into reactor, and with solid carbon reducing agent is made, by solid phase reduction reaction oxidation
Zinc abstraction enters back into gas phase into metal vapors, the metal vapors being reduced out, is oxidized to zinc oxide, Jing coolings again in the gas phase
After import dust collecting system, collection obtains zinc oxide.Such as document " the high-Zinc and Ferric dust rotary kiln handling process research of this steel, steel scrap
Forum, in April, 2016, the 2nd phase, P18-22." in discuss the rotary kiln technology that a kind of gas ash is processed, the process of the technique
For：The zinc-containing mash gas of air storage ash mix with powdered carbon is first put in rotary kiln, air is blasted at kiln tail, lighting a fire allows furnace charge
In charcoal burning, produce high-temperature reducing gas, zinc oxide reduced gas are reduced to zinc fume, and zinc fume is entered with high-temperature gas
Flue, the Jing gravitational precipitators first in flue, greater particle size particle in flue gas is removed, subsequently into U-tube road, U-tube
Road bottom is sunk in tank and is lowered the temperature, and is provided with sedimentation bucket U-shaped section of bottom, and the material and secondary zinc oxide to settling down enters
Row is collected.But the method is air storage gas ash to be put in rotary kiln, and this gas ash water content is big, if water content is big
Gas ash enter rotary kiln after, combined with reduzate in gas ash moisture evaporation, it is easy to be bonded on inner liner of rotary kiln,
Ring formation is formed, the normal production of rotary kiln will be affected when serious；Secondly, the capacity usage ratio of the technique is low, the high temperature cigarette of generation
Gas is directly entered the cooling of U-tube road, wastes amount of heat.
Rotary hearth furnace method is will in proportion to match somebody with somebody with dedusting ash and binding agent, coal dust after the concentrated dewatered drying of blast furnace gas mud
Material, Jing profit mill, pelletizing, after screening green-ball again after drying uniform cloth on the annular chassis of rotary hearth furnace, using in rotary hearth furnace about
Carbon in 1300 DEG C of high-temperature reductibility atmosphere and pelletizing produces reduction reaction, in 10～20min, iron oxide is most of also
Originally it was metallic iron, while zinc oxide major part is reduced to into zinc, zinc is discharged in the lump with flue gas, flue gas is further by heat exchanger
Cooling, most after Jing after sack cleaner purification outer row, the zinc ore powder that dedusting is obtained then is recovered.But rotary hearth furnace high temperature out
Flue gas (at 1100 DEG C or so) enters heat exchanger, and heat exchanger Jing often occurs cohering blocking, and need to stop production cleaning, so as to affect to turn
Bottom stove is normally produced.Though the rotary hearth furnace that the country has gone into operation is through updating, such as：Add waste heat boiler before heat exchanger, changing
Around hot device plus water cooling plant is circulated water cooling etc., mitigate felt jam phenomenon, but be not fully solved this yet to ask
Topic, this is also domestic rotary hearth furnace operation common problem.
The content of the invention
To solve problem above, the present invention provides the heat utilization device and its method during a kind of gas ash dezincification,
Gas ash dezincification is not only realized, and gas ash raw material is heated using the heat during dezincification, remove moisture.
For achieving the above object, the technical solution adopted in the present invention is：
A kind of heat utilization device during gas ash dezincification, including rotary kiln, rotary kiln charging aperture is provided with charging dress
Put, rotary kiln outlet flue is connected by cooler with dust-precipitator, rotary kiln air inlet and air communication；Wherein, cooler includes
The long tube of horizontally set, long tube one end is provided with smoke air inlet, and smoke air inlet is connected by pipeline with rotary kiln outlet flue, long
The pipe other end is provided with flue gas gas outlet, and flue gas gas outlet is connected by pipeline with dust-precipitator, and long tube middle part is uniformly provided with several
Inverse u shape pipe, the both ends open of inverse u shape pipe is connected with long tube, and inner tube is equipped with each inverse u shape pipe, and inner tube one end leads to
Cross air pump and air communication, the inner tube inlet of the other end of inner tube from long tube is entered and sequentially passed through after each inverse u shape pipe
Inner tube outlet from long tube is passed, and the inner tube that inner tube outlet is passed is connected by branching hose with feed arrangement.
Further, the lower end of the long tube is uniformly provided with several smoke settlement buckets.
Further, the inverse u shape pipe is provided with 4, and the internal diameter of said inner tube and the ratio of inverse u shape bore are 1：3.
Further, it is provided between each described inverse u shape inside pipe wall and corresponding outer wall of inner tube for supporting propping up for inner tube
Support location-plate.
Further, said inner tube entrance is equipped with sealing structure for water with inner tube outlet.
A kind of Btu utilization method during gas ash dezincification, including above step：
1) gas ash is put into into feed arrangement, starts rotary kiln, from rotary kiln air inlet air is blasted, gas ash is entered back
In rotary kiln, the zinc oxide reduction in gas ash is entered cooler by the reducing gas in rotary kiln into zinc fume and with flue gas；
2) start air pump, air is blasted in inner tube, during inner tube flowing, zinc fume is with flue gas simultaneously for air
Flow in inverse u shape pipe, the air in inner tube occurs heat exchange with zinc fume, flue gas, the air in inner tube is passed through charging dress
Gas ash is heated in putting, removes moisture；Zinc fume in inverse u shape pipe is passed through dust-precipitator and is filtered with flue gas, receives
Collection filter residue is to reclaim zinc；
3) rotary kiln and air pump are closed after the filter residue in dust-precipitator is not further added by, is reclaimed in rotary kiln and is reduced gas
Product after ash.
Further, the circulating direction of air and zinc fume in inverse u shape pipe and the circulating direction of flue gas in said inner tube
On the contrary.
Further, the cooler also includes smoke settlement bucket, the zinc fume powder larger with a part of particle in flue gas
Dirt is deposited in smoke settlement bucket, and the less dust of another part particle is passed through in inverse u shape pipe and flows.
It is an advantage of the current invention that：
1, by arranging inner tube in inverse u shape pipe, cold air is passed through in inner tube, during dezincification, inverse u shape pipe
Interior circulation has the zinc fume and flue gas of high temperature, therefore, by this device, the air in inner tube and the high temperature in inverse u shape pipe
There is heat exchange in zinc fume, the air themperature in inner tube is raised and heated for heating gas ash raw material with flue gas, remove water
Point；Gas ash raw material after dehydration forms a metastable raw material supply environment in rotary kiln, and chemistry is anti-in stable stove
Should, the phenomenon of ring formation in stove is reduced, improve production efficiency and the life-span of rotary kiln；High temperature zinc fume and cigarette in inverse u shape pipe
Temperature degree drops to less than 100 DEG C, and high temperature zinc fume and flue-gas temperature are dropped to into 200～250 DEG C compared to conventional cooler, this
More preferably, the flue gas of low temperature not only improves the efficiency of dedusting and can avoid high temperature dust-precipitator again for bright cooling effect.
2, by arranging smoke settlement bucket in long tube lower end, the sedimentation for large particulate matter in flue gas is collected, and prevents resistance
Plug long tube.
3, the direction of inner tube inner air flow is in opposite direction with what inverse u shape inner tube smoke circulated, is conducive to heat exchange
It is more abundant.
4, in actual production, the height of inverse u shape pipe is 6 meters, and the height of the inner tube in inverse u shape pipe is slightly less than 6
Rice, because being connected with high-temperature flue gas in " U " type pipe, inner tube easily swings in inverse u shape pipe, unstable, by inverted " u "
It is provided for supporting the support positioning plates of inner tube, inner tube to be firmly set in down between type inside pipe wall and corresponding outer wall of inner tube
In " U " type pipe.
5, the other end of the inner tube inner tube inlet from long tube is entered and sequentially passes through inner tube on each inverse u shape Guan Houcong long tubes
Outlet is passed, therefore, inner tube inlet can be caused to reduce with the sealing of inner tube outlet, waste gas is let out from inner tube inlet with inner tube outlet
Leak, therefore, sealing structure for water is respectively provided with inner tube inlet and inner tube outlet, effectively by atmospheric environment and cooler ground environment
Keep apart, and due to negative pressure, sealing structure for water is difficult failure.
Description of the drawings
Fig. 1 is the structural representation of the heat utilization device during gas ash dezincification of the present invention；
Each part numbers are as follows in figure：Rotary kiln 1 (wherein, charging aperture 1.1, outlet flue 1.2, air inlet 1.3), charging dress
Put (wherein, the long tube 3.1, smoke air inlet 3.2, flue gas gas outlet 3.3, inverse u shape pipe 3.4, inner tube 3.5, interior of 2, cooler 3
Tube inlet 3.6, inner tube outlet 3.7, branching hose 3.8, support positioning plates 3.9, sealing structure for water 3.10), dust-precipitator 4, air pump
5th, smoke settlement bucket 6.
Specific embodiment
To more fully understand the present invention, invention is described in detail below with reference to accompanying drawing and instantiation.
As shown in figure 1, the heat utilization device during a kind of gas ash dezincification, including rotary kiln 1, rotary kiln 1 feeds
Mouth 1.1 is provided with feed arrangement 2, and the outlet flue 1.2 of rotary kiln 1 is connected by cooler 3 with dry bag-type dust-precipitator 4, and rotary kiln 1 enters
Gas port 1.3 and air communication；Wherein, cooler 3 includes the long tube 3.1 of horizontally set, and the one end of long tube 3.1 is provided with smoke air inlet
3.2, smoke air inlet 3.2 is connected by pipeline with the outlet flue 1.2 of rotary kiln 1, and the other end of long tube 3.1 is provided with flue gas gas outlet
3.3, flue gas gas outlet 3.3 is connected by pipeline with dust-precipitator 4, and the middle part of long tube 3.1 is uniformly provided with 4 inverse u shape pipes 3.4, long
The lower end of pipe 3.1 is uniformly provided with 5 smoke settlement buckets 6, and the both ends open of inverse u shape pipe 3.4 is connected with long tube 3.1, and each falls
Inner tube 3.5 is equipped with " U " type pipe 3.4, is provided between each inwall of inverse u shape pipe 3.4 and the outer wall of corresponding inner tube 3.5 for propping up
The support positioning plates 3.9 of support inner tube 3.5, by air pump 5 and air communication, the other end of inner tube 3.5 is from length for the one end of inner tube 3.5
Inner tube inlet 3.6 is entered sequentially passed through and pass from inner tube outlet 3.7 on long tube 3.1 after each inverse u shape pipe 3.4 on pipe 3.1, interior
The inner tube 3.5 that pipe outlet 3.7 is passed is connected by branching hose 3.8 with feed arrangement 2；Inner tube inlet 3.6 and inner tube outlet 3.7
It is equipped with sealing structure for water 3.10.
Wherein, the ratio of the internal diameter of inner tube 3.5 and the internal diameter of inverse u shape pipe 3.4 is 1：3, the internal diameter too conference of inner tube is caused down
Flue gas circulation in " U " type pipe 3.4 is not smooth, and the too little air capacity being passed through of internal diameter of inner tube is too little, causes interior inner air tube and falls
The heat exchange effect of flue gas is not good in " U " type pipe 3.4.The direction of the inner air flow of inner tube 3.5 and flue gas in inverse u shape pipe 3.4
That what is circulated is in opposite direction, is conducive to the more abundant of heat exchange.
With reference to Fig. 1, the Btu utilization method during gas ash dezincification, comprise the following steps：
1) gas ash is put into into feed arrangement 2, starts rotary kiln 1, from the air inlet 1.3 of rotary kiln 1 air, gas ash are blasted
Into rotary kiln 1, the zinc oxide reduction in gas ash is entered cooling by the reducing gas in rotary kiln 1 into zinc fume and with flue gas
Device 3；
2) start air pump 5, air is blasted in inner tube 3.5, air inner tube 3.5 flowing during, zinc fume with
Flue gas flows in inverse u shape pipe 3.4 simultaneously, and the circulating direction of the air in inner tube 3.5 and zinc in inverse u shape pipe 3.4
Steam is contrary with the circulating direction of flue gas；There is heat exchange in the air in inner tube 3.5, absorb the interior of heat with zinc fume with flue gas
The air of pipe 3.5 is passed through in feed arrangement 2 and gas ash is heated, and removes moisture；Zinc fume and cigarette in inverse u shape pipe 3.4
Gas is passed through dust-precipitator 4 and is filtered, and collects filter residue to reclaim zinc；
3) rotary kiln 1 and air pump 5 are closed after the filter residue in dust-precipitator 4 is not further added by, is reclaimed in rotary kiln and is reduced
Product after gas ash.
Cooler 3 also includes smoke settlement bucket 6, and the zinc fume dust settling larger with a part of particle in flue gas is to flue gas
In sedimentation bucket 6, the less dust of another part particle is passed through in inverse u shape pipe 3.4 and flows, for large particulate matter in flue gas
Sedimentation is collected, and prevents from blocking long tube.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (9)
1. a kind of heat utilization device during gas ash dezincification, including rotary kiln (1), rotary kiln (1) charging aperture
(1.1) feed arrangement (2) is provided with, the rotary kiln (1) outlet flue (1.2) is connected by cooler (3) with dust-precipitator (4), institute
State rotary kiln (1) air inlet (1.3) and air communication, it is characterised in that：Long tube of the cooler (3) including horizontally set
(3.1), described long tube (3.1) one end is provided with smoke air inlet (3.2), and the smoke air inlet (3.2) is by pipeline and revolution
Kiln (1) outlet flue (1.2) is connected, and long tube (3.1) other end is provided with flue gas gas outlet (3.3), the flue gas gas outlet
(3.3) connected with dust-precipitator (4) by pipeline, long tube (3.1) middle part is uniformly provided with several inverse u shape pipes (3.4), institute
The both ends open for stating inverse u shape pipe (3.4) is connected with long tube (3.1), and in each described inverse u shape pipe (3.4) inner tube is equipped with
(3.5), said inner tube (3.5) one end passes through air pump (5) and air communication, and the other end of said inner tube (3.5) is from long tube
(3.1) inner tube inlet (3.6) on enters the inner tube outlet sequentially passed through after each inverse u shape pipe (3.4) from long tube (3.1)
(3.7) pass, the inner tube (3.5) that inner tube outlet (3.7) is passed is connected by branching hose (3.8) with feed arrangement (2).
2. the heat utilization device during gas ash dezincification according to claim 1, it is characterised in that：The long tube
(3.1) lower end is uniformly provided with several smoke settlement buckets (6).
3. the heat utilization device during gas ash dezincification according to claim 1, it is characterised in that：The inverted " u "
Type pipe (3.4) is provided with 4, and the internal diameter of said inner tube (3.5) and the ratio of inverse u shape pipe (3.4) internal diameter are 1：3.
4. the heat utilization device during gas ash dezincification according to claim 1, it is characterised in that：Each is described
The support positioning plates for supporting inner tube (3.5) are provided between " U " type pipe (3.4) inwall and corresponding inner tube (3.5) outer wall
(3.9)。
5. the heat utilization device during gas ash dezincification according to claim 1, it is characterised in that：Said inner tube enters
Mouth (3.6) is equipped with sealing structure for water (3.10) with inner tube outlet (3.7).
6. the heat utilization device during gas ash dezincification according to claim 1, it is characterised in that：The dust-precipitator
(4) it is dry bag-type dust-precipitator.
7. a kind of Btu utilization method during gas ash dezincification, it is characterised in that：Comprise the following steps：
1) gas ash is put into into feed arrangement (2), starts rotary kiln (1), from rotary kiln (1) air inlet (1.3) air is blasted, watt
This ash enter rotary kiln (1) in, the reducing gas in rotary kiln (1) by the zinc oxide reduction in gas ash into zinc fume and and cigarette
Gas enters cooler (3)；
2) start air pump (5), air is blasted in inner tube (3.5), air inner tube (3.5) flowing during, zinc fume
With the flue gas flowing in inverse u shape pipe (3.4) simultaneously, there is heat exchange in the air in inner tube (3.5), interior with zinc fume, flue gas
Air in pipe (3.5) is passed through in feed arrangement (2) and gas ash is heated, and removes moisture；In inverse u shape pipe (3.4)
Zinc fume, flue gas are passed through dust-precipitator (4) and are filtered, and collect filter residue to reclaim zinc；
3) rotary kiln (1) and air pump (5) are closed after the filter residue in dust-precipitator (4) is not further added by, is reclaimed in rotary kiln also
Product after former gas ash.
8. the Btu utilization method during gas ash dezincification according to claim 7, it is characterised in that：Said inner tube
(3.5) circulating direction of the air in is contrary with the circulating direction of flue gas with zinc fume in inverse u shape pipe (3.4).
9. the Btu utilization method during gas ash dezincification according to claim 7, it is characterised in that：The cooler
(3) smoke settlement bucket (6), the zinc fume dust settling larger with a part of particle in flue gas to smoke settlement bucket (6) are also included
In, the less dust of another part particle is passed through flowing in inverse u shape pipe (3.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225564.0A CN106636658A (en) | 2016-12-27 | 2016-12-27 | Heat utilization device in dezincification process of gas ashes and method of heat utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225564.0A CN106636658A (en) | 2016-12-27 | 2016-12-27 | Heat utilization device in dezincification process of gas ashes and method of heat utilization device |
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| CN106636658A true CN106636658A (en) | 2017-05-10 |
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ID=58832623
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611225564.0A Pending CN106636658A (en) | 2016-12-27 | 2016-12-27 | Heat utilization device in dezincification process of gas ashes and method of heat utilization device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108085511A (en) * | 2017-11-28 | 2018-05-29 | 酒泉钢铁(集团)有限责任公司 | A kind of method that zinc kiln slag production metallized charge is carried using blast furnace dust |
| CN114410985A (en) * | 2022-02-10 | 2022-04-29 | 兰州有色冶金设计研究院有限公司 | Zinc leaching slag treatment system and treatment method |
-
2016
- 2016-12-27 CN CN201611225564.0A patent/CN106636658A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108085511A (en) * | 2017-11-28 | 2018-05-29 | 酒泉钢铁(集团)有限责任公司 | A kind of method that zinc kiln slag production metallized charge is carried using blast furnace dust |
| CN114410985A (en) * | 2022-02-10 | 2022-04-29 | 兰州有色冶金设计研究院有限公司 | Zinc leaching slag treatment system and treatment method |
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Effective date of registration: 20170703 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Applicant after: Wuhan iron and Steel Company Limited Address before: 430083 Qingshan District, Hubei, Wuhan Applicant before: WUHAN IRON AND STEEL CORPORATION |
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Application publication date: 20170510 |