CN107586962A - A kind of reuse method of dedusting ash containing zinc - Google Patents
A kind of reuse method of dedusting ash containing zinc Download PDFInfo
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- CN107586962A CN107586962A CN201710743451.8A CN201710743451A CN107586962A CN 107586962 A CN107586962 A CN 107586962A CN 201710743451 A CN201710743451 A CN 201710743451A CN 107586962 A CN107586962 A CN 107586962A
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Abstract
The present invention relates to a kind of reuse method of dedusting ash containing zinc, zinc dedusting ash will be contained and be passed through air classification wind magnetic separation system, separate to obtain selection by winnowing iron ore concentrate by big granularity dedusting ash by air classification；The magnetic material in fine granularity dedusting ash is separated to obtain magnetic separation of iron ore concentrate by magnetic separation；Selection by winnowing iron ore concentrate and magnetic separation of iron ore concentrate straight gyrus sintering, smelting procedure use；The dry tail ash that sack cleaner traps is zinc-rich mine tailing, as carrying zinc raw material；The mixed solution of ammoniacal liquor and ammonium chloride is prepared as leaching solvent；Zinc-rich mine tailing and leaching solvent mixing, stirring, filtering, obtain leachate and tailings；Leachate electrolysis carries zinc, and zinc ingot metal is made by founding again in obtained zinc metal sheet.The dry separation craft combination wet method Zn extraction process that the present invention passes through air classification wind magnetic separation, zinc in dedusting ash containing zinc and iron are extracted, solve existing dezincification method due in dedusting ash containing zinc Zn content fluctuation it is big and caused by the wasting of resources, energy waste, the low problem of processing cost performance.
Description
Technical field
The present invention relates to Metallurgical Solid Wastes technical field of comprehensive utilization, more particularly to a kind of recycling side of dedusting ash containing zinc
Method.
Background technology
Steel smelting procedure each operation can all produce substantial amounts of dirt mud, because dirt mud has certain reuse value, steel
Enterprise returns to sintering generally as secondary raw material and utilized.At present, it is continuously increased with solid waste caused by steel industry,
Environmental protection problem highlights increasingly.Moreover, the recycling in sintering with these solid waste, harmful element is constantly enriched with,
Quality and process direct motion to sintering deposit cause to significantly affect.
At present, domestic recycling of many iron and steel enterprises by zinc-containing dust, sludge in sintering system, causes Zn-ef ficiency
Serious enrichment, Zn-ef ficiency is brought into brings significant damage to smelting, mainly has：1. form accretion at positions such as furnace throat clinker tiles.②
Because dross can cause upper blast furnace Gas Flow disorderly in stove caused by zinc aggregation, there is hanging and collapse material phenomenon.3. destroy furnace lining
Shell of blast furnace is caused to ftracture.4. condensed in blast furnace gas ascending pipe, gather and cause to rise pipe choking.5. sunk at blast-furnace tuyere
Product, refractory material is corroded and causes brick body loose, cause air port to upwarp or damaged.6. causing coke ratio to rise, the saturating of stock column is reduced
Gas.7. stokehold operating environment is severe, poor visibility.Place is processed therefore, it is necessary to which zinc-containing dust, sludge are separated
Reason.How to turn waste into wealth, these dust, sludge are subjected to recycling and harmless treatment, reduces environmental pollution, has become steel
The problem of iron enterprise is extremely urgent.On the other hand, China is a big steel country, and largely abandoning or arrange outside for metallurgical solid waste causes
The substantial amounts of wasting of resources, it, which recycles and recycled, also complies with China's Green Sustainable strategic requirement.
In the 1970s, begin to reclaim the correlative study of Zn, Pb, Fe in Ferrous Metallurgy solid waste both at home and abroad, most
Closely also there is related process report.As people are to the pay attention to day by day of environmental problem, how rational exploitation and utilization dedusting ash more causes
The great attention of enterprise and environmental administration.External such as Japan, recycling of the U.S. to dust, sludge are paid much attention to, by
Professional chemical plant is handled, and has tended to recycling.The utilization of metallurgical dust, sludge includes：By metal recovery, ion exchange is used
Resin system prepares extreme high purity iron oxide, for doing essence pigment, magnetic material, catalyst etc..
Hu Xiaohong et al. delivers entitled《The research of blast furnace gas mud comprehensive utilization》Article, use magnetic separation-shaking table as most
Good technological process.Experiment gained iron ore concentrate all iron content is more than 62%.Zhang Hanquan et al. delivers entitled《Blast Furnace gas mud iron
Recovery process experimental study》Article, can obtain smart mud yield 31.8l%, iron content product using two sections of gravity separation technology flow processings
Position 61.51%, iron recovery are 51.64% more satisfactory index.Cheng Haifang et al. delivers entitled《Blast furnace gas ash it is comprehensive
Close and utilize》Article, flotation combined using weight one, the iron concentrate grade that can make to select reaches 47%~20%, and the rate of recovery reaches
49.24%.Pan Guotai et al. delivers entitled《Brief talk blast furnace dust and put forward carbon iron-extracting process science and technology》Article, using gravity treatment and weak
The technique of the last one magnetic collocation reclaims the iron in gas ash, obtains preferable treatment effect, is maximumlly returned from resource is made
Receive and utilize.Zhang Meifang et al. delivers entitled《Blast furnace of Baoshan Iron ＆ Steel Co. gas mud is recycled with beneficiation method》Article, laboratory use
Flotation-magnetic separation or magnetic separation-flotation combined flow processing blast furnace of Baoshan Iron ＆ Steel Co. dust, the iron ore concentrate of iron content 60% can be obtained, while recovery contains
The carbon powder of carbon 67%.Above several method is the method that several Physicals deviate from zinc in dedusting ash, and technique is relatively simple, processing
Cost is relatively low, but iron recovery is too low in processing procedure, and treatment effect is not enough significantly, and due to dedusting ash in processing procedure
Composition fluctuates the waste that can cause water resource, medicament resource etc..
Wang Jing pines et al. are delivered entitled《Steel plant's zinc-containing dust rotary hearth furnace direct-reduction and dezincification experimental study》Using
Carbon-burdened pellet is made in steel plant's zinc-containing dust, and simulation rotary hearth furnace reduces 10min, gold under the conditions of 1300 DEG C and neutral atmosphere
Belong to rate up to 80%, dezinc degree is up to 97%；She Xuefeng et al. is delivered entitled《Zinc, lead and alkali gold removing behavior in metallurgical dust
Research》Carbonaceous pelletizing is made using iron and steel enterprise's zinc-containing dust, simulates rotary hearth furnace experiment under the high temperature conditions, is 1 in carbon-to-oxygen ratio,
Degree of metalization is more than 70% when 15min is reduced under the conditions of 1250-1300 DEG C of temperature, and dezinc degree reaches 93.4%-98.8%.Horse sunlight etc.
People delivers entitled《Blast furnace dust dezincification based on roasting experiment, de- lead basic research》Blast furnace dust is removed using pyrogenic process
In zinc, explore and analyze the factors such as roasting time, sintering temperature, basicity and chloride additive level to dezincification effect
Affecting laws, optimize pyrogenic process dezincification parameter.These methods handle Zinc-Bearing Wastes significant effect, but rotary hearth furnace process processing contains zinc
Dirt mud one-time investment is huge, and cost and energy consumption are too high, and economic benefit is not notable, more difficult big in today of iron and steel enterprise's meagre profit
Area popularization and application.
All flourish grandsons et al. deliver entitled《Blast furnace dust ammonia soaks dezincification》Article, research made using ammoniacal liquor and ammonium chloride
Deviate from the zinc in blast furnace dust for leaching agent.Optimal extract technology condition is：Using liquid-solid ratio 4:After 1 mixing, adopt at room temperature
3h is stirred with 600r/min speed.On this condition, zinc leaching rate is up to 89%.The method carries zinc solution process compared to pyrogenic process
Flow is simple, and scale of investment is smaller, and processing cost is relatively low, and dezincification significant effect.But due to Zn content in blast furnace dust
Fluctuation range is larger, or even Zn content differs more than 30 times in the different blast furnace dusts of same steel mill.Deviate from using this scheme
During zinc in low zinc gas ash, cause unavoidably excessive with addition of leaching agent, cause the wasting of resources.So in industrial processes
Because the fluctuation of gas ash zinc content brings difficulty to the amount of allocating of leaching agent.
The superfine people of Zhao Rui deliver entitled《From the experimental study of blast furnace dust recovery iron》Article, research is using weak
The method of magnetic-strong magnetic two-stage magnetic separation separates the iron mineral in gas ash and zinc mineral, then by magnetic roasting process by gas
Zinc in ash is further backing out, and is finally obtained grade 60.7%, the iron ore concentrate of the rate of recovery 70%.The process program by magnetic separation with
Pyrogenic process dezincification process integration gets up, and achieves preferable treatment effect, and more have compared to simple pyrogenic process dezincification technique
Economy, but weak magnetic-strong magnetic two-stage gradient magnetic separation effect needs further to be improved, and still suffer from pyrogenic process and take off asking for lead high energy consumption
Topic.The processing reuse method of dedusting ash containing zinc, which is summed up mainly, at present Physical, pyrogenic process and wet method, in the prior art generally
Using one kind in three kinds of methods, or any two kinds are combined.Affected by many factors, Zn content fluctuates in dedusting ash containing zinc
It is huge, and in existing method, single alternative generally existing treatment effect is undesirable or energy consumption and resource consumption it is big, processing cost is high
The shortcomings of, and a kind of efficient, low input, low energy consumption, low cost and for various composition spy are also not yet found in integrated processes
The generally applicable treating method of dedusting ash of point.
The content of the invention
The invention provides a kind of reuse method of dedusting ash containing zinc, pass through the dry separation craft of air classification-wind magnetic separation
With reference to wet method Zn extraction process, the zinc in dedusting ash containing zinc and iron are extracted, solve existing dezincification method due to being removed containing zinc
In dirt ash Zn content fluctuation it is big and caused by the problem such as the wasting of resources, energy waste, processing cost performance be low；Method is simple, economical
Practicality, and considerable economic benefit can be created.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of reuse method of dedusting ash containing zinc, comprises the following steps：
(1) dry separation, using the dry separation technique of air classification+wind magnetic separation；
1) zinc dedusting ash will be contained and be passed through air classification-wind magnetic separation system, i.e., will contain zinc dedusting ash by air blower is blown into
In air channel, the big granularity dedusting ash of d >=25 μm is separated by air classification in first paragraph air channel, obtains selection by winnowing iron essence
Ore deposit；
2) 25 μm of fine granularity dedusting ash of d ＜ proceed into second segment air channel, and second segment sets concentration equipment in air channel, lead to
Cross wind magnetic separation to separate the magnetic material in fine granularity dedusting ash, obtain magnetic separation of iron ore concentrate；
3) air channel is not continued through by the fine granularity dedusting ash that concentration equipment traps, eventually enters into the cloth bag of air channel tail end
Deduster collects；
4) the selection by winnowing iron ore concentrate and magnetic separation of iron ore concentrate isolated by air classification and wind magnetic separation directly return to sintering, smelting
Process is refined to use；The dry tail ash that sack cleaner traps is zinc-rich mine tailing, as carrying zinc raw material；
(2) zinc-rich mine tailing production zinc oxide is utilized：
1) mixed solution of ammoniacal liquor and ammonium chloride is prepared as leaching solvent；Zinc-rich mine tailing and leaching solvent are according to solid-liquid matter
Measure ratio 1:Stirred after 3~4 ratio mixing；
2) mud being stirred is filtered, obtains leachate and tailings；
3) electrolysis of obtained leachate is carried into zinc, zinc ingot metal is made by founding again in obtained zinc metal sheet.
During the air classification, the air quantity in air channel is 160~270m3/ min, blast are 2000~2800Pa, dedusting ash
Charging rate is 320~350kg/h.
The magnetic field intensity of the concentration equipment is 8000~11000Oe.
The concentration of ammoniacal liquor and ammonium chloride is 2.35~2.80mol/L in the leaching solvent.
When being stirred after the zinc-rich mine tailing and leaching solvent mixing, agitator speed is 200~400 revs/min, during stirring
Between 2.5~3.5 hours.
When the leachate electrolysis carries zinc, temperature is 40~50 DEG C, and current density is 380~400A/m2, tank voltage is
2.8~3V.
Compared with prior art, the beneficial effects of the invention are as follows：
1) technique that lead is carried by air classification+wind magnetic separation+wet method, solves existing handling process due to dedusting containing zinc
In ash Zn content fluctuation it is big and caused by the problem such as the wasting of resources, energy waste, processing cost performance be low；
2) all kinds of harm that Zn-ef ficiency is brought to smelting production are reduced；
3) selection by winnowing iron ore concentrate and magnetic separation of iron ore concentrate directly return to sintering, smelting procedure uses, and full iron yield is high；
4) will contain zinc dedusting ash turns waste into wealth, and creates considerable economic value.
Brief description of the drawings
Fig. 1 is a kind of process chart of reuse method of dedusting ash containing zinc of the present invention.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in figure 1, one kind reuse method of dedusting ash containing zinc of the present invention, comprises the following steps：
(1) dry separation, using the dry separation technique of air classification+wind magnetic separation；
1) zinc dedusting ash will be contained and be passed through air classification-wind magnetic separation system, i.e., will contain zinc dedusting ash by air blower is blown into
In air channel, the big granularity dedusting ash of d >=25 μm is separated by air classification in first paragraph air channel, obtains selection by winnowing iron essence
Ore deposit；
2) 25 μm of fine granularity dedusting ash of d ＜ proceed into second segment air channel, and second segment sets concentration equipment in air channel, lead to
Cross wind magnetic separation to separate the magnetic material in fine granularity dedusting ash, obtain magnetic separation of iron ore concentrate；
3) air channel is not continued through by the fine granularity dedusting ash that concentration equipment traps, eventually enters into the cloth bag of air channel tail end
Deduster collects；
4) the selection by winnowing iron ore concentrate and magnetic separation of iron ore concentrate isolated by air classification and wind magnetic separation directly return to sintering, smelting
Process is refined to use；The dry tail ash that sack cleaner traps is zinc-rich mine tailing, as carrying zinc raw material；
(2) zinc-rich mine tailing production zinc oxide is utilized：
1) mixed solution of ammoniacal liquor and ammonium chloride is prepared as leaching solvent；Zinc-rich mine tailing and leaching solvent are according to solid-liquid matter
Measure ratio 1:Stirred after 3~4 ratio mixing；
2) mud being stirred is filtered, obtains leachate and tailings；
3) electrolysis of obtained leachate is carried into zinc, zinc ingot metal is made by founding again in obtained zinc metal sheet.
During the air classification, the air quantity in air channel is 120~180m3/ min, blast are 1500~1850Pa, dedusting ash
Charging rate is 280~300kg/h.
The magnetic field intensity of the concentration equipment is 9000~12000Oe.
The concentration of ammoniacal liquor and ammonium chloride is 2.35~2.80mol/L in the leaching solvent.
When being stirred after the zinc-rich mine tailing and leaching solvent mixing, agitator speed is 200~400 revs/min, during stirring
Between 2.5~3.5 hours.
When the leachate electrolysis carries zinc, temperature is 40~50 DEG C, and current density is 380~400A/m2, tank voltage is
2.8~3V.
Following examples are implemented under premised on technical solution of the present invention, give detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
It is conventional method not mentionlet alone bright.
【Embodiment 1】
Take No. 5 blast furnace dedusting ash containing zinc sample 100kg of certain steel mill.Dry separation is carried out first, opens selection by winnowing hierarchy system
Air blower, regulation pipeline blast to 2800Pa, regulation magnetic field intensity to 11000Oe, zinc dedusting ash sample will be contained and add wind-force-magnetic
In power dry separation system, charging rate 320kg/h, selection by winnowing iron ore concentrate, magnetic separation of iron ore concentrate and zinc-rich mine tailing are collected into.
The mixed solution of ammoniacal liquor and ammonium chloride is prepared as leaching solvent, the concentration of ammoniacal liquor and ammonium chloride is 2.5mol/
L；By zinc-rich mine tailing and the leaching solvent prepared by solid-liquid mass ratio 1:4 mixing, agitator stir under 400r/min rotating speeds
3.5h, filtering, the mud after stirring is subjected to separation of solid and liquid.
Filtrate is warming up to 50 DEG C, in current density 400A/m2, electrolysis is carried out under the conditions of tank voltage 3V and carries zinc, to obtaining
Zinc metal sheet carry out chemical analysis.
Analyze after testing, the component content of the dedusting ash containing zinc is as shown in table 1：
The ingredient w of dedusting ash containing the zinc t% of table 1
| TFe | Zn | Pb | K | Na | Cl | |
| Dedusting ash containing zinc | 40.45 | 8.55 | 0.79 | 1.31 | 0.33 | 0.88 |
The product Contents of Main Components that each step obtains is as shown in table 2：
The product composition data wt% of table 2
| TFe | Zn | Pb | K | Na | Cl | |
| Selection by winnowing iron ore concentrate | 60.28 | 0.62 | 0.12 | 0.34 | 0.08 | 0.20 |
| Magnetic separation of iron ore concentrate | 57.93 | 0.67 | 0.07 | 0.28 | 0.10 | 0.19 |
| Zinc-rich mine tailing | 12.18 | 30.50 | 1.94 | 2.86 | 0.65 | 1.91 |
| Zinc metal sheet | - | 99.97 | - | - | - | - |
【Embodiment 2】
Take No. 10 blast furnace dedusting ash containing zinc sample 100kg of certain steel mill.Dry separation is carried out first, opens selection by winnowing hierarchy system
Air blower, regulation pipeline blast to 2200Pa, regulation magnetic field intensity to 10000Oe, zinc dedusting ash sample will be contained and add wind-force-magnetic
In power dry separation system, charging rate 330kg/h, selection by winnowing iron ore concentrate, magnetic separation of iron ore concentrate and zinc-rich mine tailing are collected into.
The mixed solution of ammoniacal liquor and ammonium chloride is prepared as leaching solvent, the concentration of ammoniacal liquor and ammonium chloride is 2.35mol/
L；By zinc-rich mine tailing and the leaching solvent prepared by solid-liquid mass ratio 2:7 mixing, agitator stir under 200r/min rotating speeds
3h, filtering, the mud after stirring is subjected to separation of solid and liquid.
Filtrate is warming up to 45 DEG C, in current density 390A/m2, electrolysis, which is carried out, under the conditions of tank voltage 2.9V carries zinc, to
The zinc metal sheet arrived carries out chemical analysis.
Analyze after testing, the component content of the dedusting ash containing zinc is as shown in table 3：
The ingredient w of dedusting ash containing the zinc t% of table 3
| TFe | Zn | Pb | K | Na | Cl | |
| Dedusting ash containing zinc | 39.51 | 12.65 | 0.86 | 1.40 | 0.31 | 0.95 |
The product Contents of Main Components that each step obtains is as shown in table 4：
The product composition data wt% of table 4
| TFe | Zn | Pb | K | Na | Cl | |
| Selection by winnowing iron ore concentrate | 58.85 | 0.74 | 0.17 | 0.46 | 0.11 | 0.37 |
| Magnetic separation of iron ore concentrate | 56.23 | 0.74 | 0.12 | 0.36 | 0.05 | 0.29 |
| Zinc-rich mine tailing | 12.36 | 28.52 | 2.02 | 2.77 | 0.81 | 1.69 |
| Zinc metal sheet | - | 99.89 | - | - | - | - |
【Embodiment 3】
Take No. 2 blast furnace dedusting ash containing zinc sample 100kg of certain steel mill.Dry separation is carried out first, opens selection by winnowing hierarchy system
Air blower, regulation pipeline blast to 2000Pa, regulation magnetic field intensity to 9500Oe, zinc dedusting ash sample will be contained and add wind-force-magnetic
In power dry separation system, charging rate 350kg/h, selection by winnowing iron ore concentrate, magnetic separation of iron ore concentrate and zinc-rich mine tailing are collected into.
The mixed solution of ammoniacal liquor and ammonium chloride is prepared as leaching solvent, the concentration of ammoniacal liquor and ammonium chloride is 2.8mol/
L；By zinc-rich mine tailing and the leaching solvent prepared by solid-liquid mass ratio 1:3 mixing, are stirred under agitator 300r/min rotating speeds
2.5h, filtering, the mud after stirring is subjected to separation of solid and liquid.
Filtrate is warming up to 40 DEG C, in current density 380A/m2, electrolysis, which is carried out, under the conditions of tank voltage 2.8V carries zinc, to
The zinc metal sheet arrived carries out chemical analysis.
Analyze after testing, the component content of the dedusting ash containing zinc is as shown in table 5：
The ingredient w of dedusting ash containing the zinc t% of table 5
| TFe | Zn | Pb | K | Na | Cl | |
| Dedusting ash containing zinc | 39.64 | 12.66 | 0.90 | 1.33 | 0.30 | 0.94 |
The product Contents of Main Components that each step obtains is as shown in table 6：
The product composition data wt% of table 6
| TFe | Zn | Pb | K | Na | Cl | |
| Selection by winnowing iron ore concentrate | 57.26 | 0.85 | 0.31 | 0.31 | 0.09 | 0.40 |
| Magnetic separation of iron ore concentrate | 58.93 | 0.72 | 0.17 | 0.29 | 0.14 | 0.25 |
| Zinc-rich mine tailing | 10.86 | 29.19 | 2.10 | 2.63 | 0.58 | 1.87 |
| Zinc metal sheet | - | 99.93 | - | - | - | - |
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of reuse method of dedusting ash containing zinc, it is characterised in that comprise the following steps：
(1) dry separation, using the dry separation technique of air classification+wind magnetic separation；
1) zinc dedusting ash will be contained and be passed through air classification-wind magnetic separation system, i.e., will contain zinc dedusting ash by air blower is blown into air channel
In, the big granularity dedusting ash of d >=25 μm is separated by air classification in first paragraph air channel, obtains selection by winnowing iron ore concentrate；
2) 25 μm of fine granularity dedusting ash of d ＜ proceed into second segment air channel, and second segment sets concentration equipment in air channel, passes through wind
Magnetic separation separates the magnetic material in fine granularity dedusting ash, obtains magnetic separation of iron ore concentrate；
3) air channel is not continued through by the fine granularity dedusting ash that concentration equipment traps, eventually enters into the bag-type dust of air channel tail end
Device collects；
4) the selection by winnowing iron ore concentrate and magnetic separation of iron ore concentrate isolated by air classification and wind magnetic separation directly return to sintering, smelter
Sequence uses；The dry tail ash that sack cleaner traps is zinc-rich mine tailing, as carrying zinc raw material；
(2) zinc-rich mine tailing production zinc oxide is utilized：
1) mixed solution of ammoniacal liquor and ammonium chloride is prepared as leaching solvent；Zinc-rich mine tailing and leaching solvent are according to solid-liquid mass ratio
1:Stirred after 3~4 ratio mixing；
2) mud being stirred is filtered, obtains leachate and tailings；
3) electrolysis of obtained leachate is carried into zinc, zinc ingot metal is made by founding again in obtained zinc metal sheet.
2. one kind reuse method of dedusting ash containing zinc according to claim 1, it is characterised in that during the air classification,
Air quantity in air channel is 160~270m3/ min, blast are 2000~2800Pa, and dedusting ash charging rate is 320~350kg/h.
3. one kind reuse method of dedusting ash containing zinc according to claim 1, it is characterised in that the magnetic of the concentration equipment
Field intensity is 8000~11000Oe.
4. one kind reuse method of dedusting ash containing zinc according to claim 1, it is characterised in that ammonia in the leaching solvent
The concentration of water and ammonium chloride is 2.35~2.80mol/L.
5. one kind reuse method of dedusting ash containing zinc according to claim 1, it is characterised in that the zinc-rich mine tailing and leaching
When going out after solvent mixes to stir, agitator speed is 200~400 revs/min, mixing time 2.5~3.5 hours.
6. one kind reuse method of dedusting ash containing zinc according to claim 1, it is characterised in that the leachate electrolysis carries
During zinc, temperature is 40~50 DEG C, and current density is 380~400A/m2, tank voltage is 2.8~3V.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747308A (en) * | 2019-11-18 | 2020-02-04 | 武汉科技大学 | Converter LT zinc-containing dust online treatment system and treatment method thereof |
| CN110983056A (en) * | 2019-12-03 | 2020-04-10 | 昆明理工大学 | Method for recycling low-zinc smoke dust of steel plant |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699606A (en) * | 2005-04-05 | 2005-11-23 | 柳州市清宇环保产业开发有限责任公司 | Method for treating blast furnace dust |
| CN101428278A (en) * | 2007-11-07 | 2009-05-13 | 首钢总公司 | Method for separating zinc-containing substance of blast furnace dry method dust separation ash |
| CN102506440A (en) * | 2011-10-20 | 2012-06-20 | 安徽理工大学 | Embedded dry magnetic separation purification and return powder magnetic separation regrinding process |
| CN103977956A (en) * | 2014-04-29 | 2014-08-13 | 首钢总公司 | Device and method for separating harmful elements such as alkali and zinc elements in dry dedusting ash of blast furnace |
| CN104005051A (en) * | 2014-04-29 | 2014-08-27 | 戴兴征 | Method for extracting electrodeposited zinc from zinc oxide powder in ammonium chloride solution system |
| CN104226599A (en) * | 2014-09-12 | 2014-12-24 | 山西太钢不锈钢股份有限公司 | Blast furnace dust sorting method |
-
2017
- 2017-08-25 CN CN201710743451.8A patent/CN107586962B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699606A (en) * | 2005-04-05 | 2005-11-23 | 柳州市清宇环保产业开发有限责任公司 | Method for treating blast furnace dust |
| CN101428278A (en) * | 2007-11-07 | 2009-05-13 | 首钢总公司 | Method for separating zinc-containing substance of blast furnace dry method dust separation ash |
| CN102506440A (en) * | 2011-10-20 | 2012-06-20 | 安徽理工大学 | Embedded dry magnetic separation purification and return powder magnetic separation regrinding process |
| CN103977956A (en) * | 2014-04-29 | 2014-08-13 | 首钢总公司 | Device and method for separating harmful elements such as alkali and zinc elements in dry dedusting ash of blast furnace |
| CN104005051A (en) * | 2014-04-29 | 2014-08-27 | 戴兴征 | Method for extracting electrodeposited zinc from zinc oxide powder in ammonium chloride solution system |
| CN104226599A (en) * | 2014-09-12 | 2014-12-24 | 山西太钢不锈钢股份有限公司 | Blast furnace dust sorting method |
Non-Patent Citations (1)
| Title |
|---|
| 诸荣孙等: "高炉瓦斯灰氨浸脱锌", 《有色金属工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747308A (en) * | 2019-11-18 | 2020-02-04 | 武汉科技大学 | Converter LT zinc-containing dust online treatment system and treatment method thereof |
| CN110747308B (en) * | 2019-11-18 | 2023-10-13 | 武汉科技大学 | Online treatment system and method for zinc-containing dust in converter LT |
| CN110983056A (en) * | 2019-12-03 | 2020-04-10 | 昆明理工大学 | Method for recycling low-zinc smoke dust of steel plant |
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