CN103977956A - Device and method for separating harmful elements such as alkali and zinc elements in dry dedusting ash of blast furnace - Google Patents
Device and method for separating harmful elements such as alkali and zinc elements in dry dedusting ash of blast furnace Download PDFInfo
- Publication number
- CN103977956A CN103977956A CN201410178212.9A CN201410178212A CN103977956A CN 103977956 A CN103977956 A CN 103977956A CN 201410178212 A CN201410178212 A CN 201410178212A CN 103977956 A CN103977956 A CN 103977956A
- Authority
- CN
- China
- Prior art keywords
- dust
- dedusting ash
- cloth bag
- communicated
- collecting bin
- 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.)
- Granted
Links
Abstract
The invention relates to a device and a method for separating harmful elements such as alkali and zinc elements in dry dedusting ash of a blast furnace. The device comprises a dedusting ash bin, a conveying pipeline, a dust separator, a fine dust conveying pipe and a cloth bag collecting bin, wherein the top of the ash bin is communicated with the bottom of the dust separator; the upper end of the dust separator is communicated with the cloth bag collecting bin by virtue of the fine dust conveying pipe; the conveying pipeline is communicated with the dust separator. The method comprises the following steps: spraying the dedusting ash into the dust separator through the conveying pipeline by virtue of a cone pump; enabling large-particle dust to fall into the dedusting ash bin under the action of gravity; introducing small-particle dust into the cloth bag collecting bin along with airflow. The device and the method can be used for effectively alleviating a phenomenon that alkali and zinc elements are enriched in a dry dedusting ash reusing process of the blast furnace, and realizing a recyclable and environment-friendly concept of a blast furnace ironmaking process.
Description
Technical field
The present invention relates to the solid waste method for processing resource technical fields such as blast furnace dedusting ash, particularly a kind of apparatus and method that separate the harmful element such as alkali zinc in blast furnace dry method dust ash.
Background technology
In blast furnace feeding crude fuel the harmful element such as alkali, zinc in blast-furnace shaft, the high-temperature region on top is reduced, after once more oxidized while rising to the lower region of temperature with Gas Flow, the furnace charge that is attached to decline enters high-temperature region again, go round and begin again, form the enrichment phenomenon of the harmful element such as alkali, zinc in blast furnace, the normal production of blast furnace has been exerted a certain influence; Outside wherein the harmful element such as a part of alkali, zinc is attached to and is come out of the stove by band on the particle dust in rising coal gas, after gravity, cyclone dust collector, enter in sack cleaner, reclaimed by cloth bag.Conventionally in this part dedusting ash containing having an appointment 35～40% ferro element, simultaneously also enrichment the harmful elements such as the potassium of approximately 3～10% zinc oxide and high level, sodium, lead, arsenic, far above gravitational dust collection ash and cyclone dust removal ash.These dedusting ash are directly used in sintering and will cause blast furnace to occur the serious harmful element such as alkali, zinc enrichment phenomenon, and particularly higher zinc enrichment, directly affects smooth operation of furnace and longevity; At present, the blast furnace dry method dust ash of most of iron and steel enterprise cannot utilize owing to containing compared with high zinc oxide, have to take out or abandon, buried, environment has been caused to substantial pollution.
The method of existing blast furnace dry method dust ash dezincify mainly contains high temperature method, chemical method, Physical, hydraulic cyclone method etc.High temperature method is finally to remove zinc element completely as object, although the production lines such as domestic built tens rotary hearth furnaces, because project investment is large, operating cost is high, are not suitable for the lower present situation of zinc content in blast furnace dry method dust ash.
Chemical method is eliminated owing to existing containing sour sewage disposal and equipment corrosion problem.
Physical is mainly magnetic separation process, two kinds of point dry method and wet methods.Dry method is mainly to exist paramagnetism difference to carry out sorting according to high in blast furnace dedusting ash containing zinc part and the low zinc part that contains, and plays the effect that reduces zinc content in dedusting ash.Wet method generally adopts acid, alkali or ammonia salting liquid to carry out the materials such as extract and separate zinc, lead, obtains the products such as high-quality zinc, lead.Because wet-leaching rate is totally lower, can only reclaim the zinc in the blast furnace dedusting ash below 40%, productivity ratio is not high; In addition, dry method and wet method severe operational environment, cause secondary dirt to environment, is not suitable for industrial applications.
Hydraulic cyclone method need to be mixed with certain density slurries by dedusting ash and water, adopts hydrocyclone to isolate that top stream divides containing zinc higher part and underflow is low containing zinc part, then forms mud cake, carries out terminal dezincify after dry through filter press dehydration.Hydraulic cyclone method is applicable to the processing of blast furnace wet dedusting ash, but wayward, the moisture mud cake inconvenience for the treatment of facility complexity, procedure parameter subsequent handling is used.
Summary of the invention
For addressing the above problem, the invention provides a kind of can be effectively by the big dust particle in dedusting ash and granule dust separation, by collecting and the big dust particle and the granule dust that reclaim after separating, can make in dedusting ash 80% zinc oxide and a certain amount of harmful element recycle, remaining dust can be controlled in below 2.0% containing zinc oxide, can be used for the apparatus and method of the harmful element such as separation blast furnace dry method dust ash alkali zinc of sintering process innoxious use.
A kind of device that separates the harmful element such as alkali zinc in blast furnace dry method dust ash provided by the invention comprises:
Dedusting ash silo, conveyance conduit, dust separator, fine dust carrier pipe and cloth bag collecting bin;
The top of described dedusting ash silo is communicated with the bottom of described dust separator;
The upper end of described dust separator is communicated with described cloth bag collecting bin by described fine dust carrier pipe;
Described conveyance conduit is communicated with described dust separator.
As preferably, described dust separator comprises:
Housing, annular duct, nozzle, bracing frame and deflection cone;
Described annular duct is connected on the excircle of described housing top; Described annular duct is communicated with described enclosure interior by described nozzle;
Support frame as described above is arranged on described housing bottom; Described deflection cone is connected on support frame as described above;
Described conveyance conduit is communicated with described annular duct;
Described housing bottom is communicated with the top of described dedusting ash silo.
As preferably, described nozzle is uniformly distributed along described annular duct, and quantity is 10～30 groups;
Described nozzle center is descending gradually along described annular duct.
As preferably, the small end of described deflection cone upwards; The conical surface of described deflection cone is vertical, be uniformly distributed many rounds hole that diameter is 5～20mm; Described hole is distributed in the position of height 1/5～4/5 on deflection cone.
As preferably, described cloth bag collecting bin comprises:
Warehouse, diffusion valve, exhaust stack, cloth bag and unloading valve;
Described warehouse comprises: the cone of bottom, the cylinder on top;
Described cone bottom arranges outlet; Described unloading valve is arranged on described outlet; Described fine dust carrier pipe is connected in described cylindrical middle part;
Described exhaust stack is communicated with described cylinder top; The porch that described exhaust stack is communicated with the described warehouse described cloth bag that is connected;
Described diffusion valve is arranged on described exhaust stack;
Described diffusion valve, for regulating the flow that diffuses of conveying gas after Bag filter, is controlled the dust granules size of collecting, and regulates the content of the harmful elements such as alkali, zinc in regenerant.
In separation blast furnace dry method dust ash provided by the invention, the device of the harmful element such as alkali zinc is by arranging dust separator dedusting ash is separated into the big dust particle lower containing the harmful element such as alkali, zinc and containing higher granule dust of harmful element such as alkali, zinc; By dedusting ash silo is set, big dust particle is collected and supplies with sintering recycling; By arrange cloth bag collecting bin by the granule dust collection in dedusting ash in cloth bag, therefore can recycled dust removing ashes in most of zinc oxide as zinc raw material processed.Meanwhile, this device can be supporting with existing dry-dedusting system.
A kind of method that separates the harmful element such as alkali zinc in blast furnace dry method dust ash provided by the invention, comprising:
Use cone pump that dedusting ash is sprayed in described dust separator by described conveyance conduit;
Big dust particle in described dedusting ash drops to the bottom of described dust separator at Action of Gravity Field, and then drops in described dedusting ash silo;
Granule dust in described dedusting ash is incorporated in described fine dust carrier pipe with air-flow, then enters in described cloth bag collecting bin;
Obtain the little dedusting ash of dust granules by described cloth bag collecting bin, realized separating of the big dust particle in dedusting ash and granule dust.
As preferably, described utilization cone pump sprays into dedusting ash in described dust separator by described conveyance conduit, comprising:
Described dedusting ash sprays in described annular duct by described conveyance conduit; Described dedusting ash enters into described housing by the described nozzle being arranged in annular duct.
As preferably, the big dust particle in described dedusting ash drops to the bottom of described dust separator at Action of Gravity Field, and then drops in described dedusting ash silo, comprising:
The dust granules that enters into the dedusting ash of described housing is blowed on the conical surface of described deflection cone;
Wherein a part of dust of described dust granules can enter by the hole on the conical surface of described deflection cone the centre of described deflection cone, is directly deposited to the bottom of described housing, and then falls into described dedusting ash silo;
Another part of described dust granules glides along the conical surface of described deflection cone, falls the bottom of described housing, and then fall into described dedusting ash silo from the bottom of described deflection cone.
As preferably, the granule dust in described dedusting ash is incorporated in described fine dust carrier pipe with air-flow, then enters in described cloth bag collecting bin, comprising:
The described dedusting ash that contains granule dust is transferred air-flow that gas and the hole from the described deflection cone conical surface rise brings the upper space of described dust separator into;
The described dedusting ash that contains granule dust is incorporated in described cloth bag collecting bin by described fine dust carrier pipe.
As preferably, obtain the little dedusting ash of dust granules by described cloth bag collecting bin, comprising:
When the described cloth bag of the described dedusting ash that contains granule dust by described cloth bag collecting bin top, the granule dust in described dedusting ash is collected by described cloth bag, and the granule dust being collected described in simultaneously can be recovered utilization;
The gas of described dedusting ash after by described Bag filter enters in atmosphere by described exhaust stack and diffusion valve.
In separation blast furnace dry method dust ash provided by the invention, the method blast furnace dry method dust ash of the harmful element such as alkali zinc is processed, the problems such as the equipment complexity, the operation easier that exist in wet processing are large, product postorder processing requirements height are overcome, for blast furnace dry method dust ash provides a kind of harmful element such as alkali, zinc separation method little, process stabilizing of investing, not only in recyclable dedusting ash, most of zinc oxide is used as zinc raw material processed, detect through practice, all the other dust can be controlled in below 2.0% containing zinc oxide, can all reclaim for SINTERING PRODUCTION.
Brief description of the drawings
In the separation blast furnace dry method dust ash that Fig. 1 provides for the embodiment of the present invention, the device of the harmful element such as alkali zinc is always schemed.
The horizontal section schematic diagram of the dust separator that Fig. 2 provides for the embodiment of the present invention.
The dust separator that Fig. 3 provides for the embodiment of the present invention and the structural representation of dedusting ash silo and fine dust carrier pipe.
The structural representation of the cloth bag collecting bin that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
Referring to accompanying drawing 1, a kind of device that separates the harmful element such as alkali zinc in blast furnace dry method dust ash provided by the invention comprises: dedusting ash silo 1, conveyance conduit 2, dust separator 3, fine dust carrier pipe 4 and cloth bag collecting bin 5; The top of dedusting ash silo 1 is communicated with the bottom of dust separator 3; The upper end of dust separator 3 is communicated with cloth bag collecting bin 5 by fine dust carrier pipe 4; Conveyance conduit 2 is communicated with dust separator 3.
Referring to accompanying drawing 2 and 3, as preferably, dust separator 3 comprises: housing, annular duct 31, nozzle 32, bracing frame 33 and deflection cone 34; Annular duct 31 is connected on the excircle of housing top; Annular duct 31 is communicated with enclosure interior by nozzle 32; Bracing frame 33 is arranged on housing bottom; Deflection cone 34 is connected on bracing frame 33; Conveyance conduit 2 is communicated with annular duct 31; Housing bottom is communicated with the top of dedusting ash silo 1.
Referring to accompanying drawing 2 and 3, as preferably, nozzle 32 is uniformly distributed along annular duct 31, and quantity is 10～30 groups; Nozzle 32 is rounded, rectangle or rectangle, and nozzle 32 centers are descending gradually along annular duct 31.As a kind of preferred embodiment, nozzle 32 is uniformly distributed along the horizontal plane of annular duct 31, totally 20 groups of nozzles 32; Nozzle 32 is rectangle 20x40mm; Nozzle 32 from first nozzle 32 along with on annular duct road 31 along highly identical, to the lower edge of last nozzle 32 and annular duct road, 31 times along identical, its center is descending gradually along annular duct road 31, becomes an oblique line distribution.Adopt the nozzle 32 of circumference, can in the situation that not changing conveying gas flow, pressure, can make to carry dust in the interior abundant expansion of dust separator 3, atomization, classification, reach effective separation of thickness powder particles.
As preferably, the small end of deflection cone 34 upwards; The conical surface of deflection cone 34 is vertical, be uniformly distributed many rounds hole that diameter is 5～20mm; The position of hole distribution height 1/5～4/5 on deflection cone 34.As one preferred embodiment, the hole that the even branch of the conical surface of deflection cone 34 diameter is 12mm, be distributed in cone upper 1/5 to lower 1/5, be uniformly distributed hole central horizontal interval 50mm along conical surface interval 50mm mono-row.Because deflection cone 34 is set, the big dust particle in dedusting ash can be deposited to deflection cone 34 surfaces under Action of Gravity Field, slides into the bottom of dust separator 3 along the conical surface, and then drops into dedusting ash silo 1; Particle dust in dedusting ash is transferred the gas of dedusting ash and ascending air brings the top of dust separator 3 into, enters cloth bag collecting bin 5, and then reclaimed by cloth bag 54 through fine dust carrier pipe 4.The air-flow rising from hole disperses dust again, and brings particle dust into upper space.
Referring to accompanying drawing 4, as preferably, cloth bag collecting bin 5 comprises: warehouse 51, diffusion valve 52, exhaust stack 53, cloth bag 54 and unloading valve 55; Warehouse 51 comprises: the cone of bottom, the cylinder on top; Cone bottom arranges outlet; Unloading valve 55 is arranged on outlet; Fine dust carrier pipe 4 is connected in cylindrical middle part; Exhaust stack 53 is communicated with cylinder top; The porch that exhaust stack 53 is communicated with the warehouse cloth bag 54 that is connected; Diffusion valve 52 is arranged on exhaust stack 53; Diffusion valve 52, for regulating the flow that diffuses of conveying gas after cloth bag 54 filters, is controlled the dust granules size of collecting, and regulates the content of the harmful elements such as alkali, zinc in regenerant.
In separation blast furnace dry method dust ash provided by the invention, the device of the harmful element such as alkali zinc is by arranging dust separator 3 dedusting ash is separated into the big dust particle lower containing the harmful element such as alkali, zinc and containing higher granule dust of harmful element such as alkali, zinc; By dedusting ash silo 1 is set, big dust particle is collected and supplies with sintering recycling; By arrange cloth bag 54 by the granule dust collection in dedusting ash in cloth bag collecting bin 5, therefore can recycled dust removing ashes in most of zinc oxide as zinc raw material processed.Meanwhile, this device can be supporting with existing dry-dedusting system.
A kind of method that separates the harmful elements such as alkali zinc in blast furnace dry method dust ash provided by the invention, comprising: use cone pump that dedusting ash is sprayed in dust separator 3 by conveyance conduit 2; Big dust particle in dedusting ash drops to the bottom of dust separator 3 at Action of Gravity Field, and then drops in dedusting ash silo 1; Granule dust in dedusting ash is incorporated in fine dust carrier pipe 4 with air-flow, then enters in cloth bag collecting bin 5; Obtain by cloth bag collecting bin 5 dedusting ash that dust granules is little, realized separating of the big dust particle in dedusting ash and granule dust.
As preferably, use cone pump that dedusting ash is sprayed in dust separator 3 by conveyance conduit 2, comprising: dedusting ash sprays in annular duct 31 by conveyance conduit 2; Dedusting ash enters into housing by the nozzle 32 being arranged in annular duct 31.
As preferably, the big dust particle in dedusting ash drops to the bottom of dust separator 3 at Action of Gravity Field, and then drops in dedusting ash silo 1, comprising: the dust granules that enters into the dedusting ash of housing is blowed on the conical surface of deflection cone 34; Wherein a part of dust of dust granules can enter by the hole on the conical surface of deflection cone 34 centre of deflection cone 34, is directly deposited to the bottom of housing, and then falls into dedusting ash silo 1; Another part of dust granules glides along the conical surface of deflection cone 34, falls the bottom of housing, and then fall into dedusting ash silo 1 from the bottom of deflection cone 34.
As preferably, granule dust in dedusting ash is incorporated in fine dust carrier pipe 4 with air-flow, then enter in cloth bag collecting bin 5, comprising: the dedusting ash that contains granule dust is transferred air-flow that gas and the hole from deflection cone 34 conical surfaces rise brings the upper space of dust separator 3 into; The dedusting ash that contains granule dust is incorporated in cloth bag collecting bin 5 by fine dust carrier pipe 4.
As preferably, obtain by cloth bag collecting bin 5 dedusting ash that dust granules is little, comprise: when the dedusting ash that contains granule dust is passed through the cloth bag 54 at cloth bag collecting bin 5 tops, the granule dust in dedusting ash is collected by cloth bag 54, and the granule dust being simultaneously collected can be recovered utilization; Gas after dedusting ash is filtered by cloth bag 54 enters in atmosphere by exhaust stack 53 and diffusion valve 52.
In separation blast furnace dry method dust ash provided by the invention, the method blast furnace dry method dust ash of the harmful element such as alkali zinc is processed, the problems such as the equipment complexity, the operation easier that exist in wet processing are large, product postorder processing requirements height are overcome, for blast furnace dry method dust ash provides a kind of harmful element such as alkali, zinc separation method little, process stabilizing of investing, not only in recyclable dedusting ash, most of zinc oxide is used as zinc raw material processed, detect through practice, all the other dust can be controlled in below 2.0% containing zinc oxide, can all reclaim for SINTERING PRODUCTION.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a device that separates the harmful element such as alkali zinc in blast furnace dry method dust ash, is characterized in that, comprising:
Dedusting ash silo, conveyance conduit, dust separator, fine dust carrier pipe and cloth bag collecting bin;
The top of described dedusting ash silo is communicated with the bottom of described dust separator;
The upper end of described dust separator is communicated with described cloth bag collecting bin by described fine dust carrier pipe;
Described conveyance conduit is communicated with described dust separator.
2. device according to claim 1, is characterized in that, described dust separator comprises:
Housing, annular duct, nozzle, bracing frame and deflection cone;
Described annular duct is connected on the excircle of described housing top; Described annular duct is communicated with described enclosure interior by described nozzle;
Support frame as described above is arranged on described housing bottom; Described deflection cone is connected on support frame as described above;
Described conveyance conduit is communicated with described annular duct;
Described housing bottom is communicated with the top of described dedusting ash silo.
3. device according to claim 2, is characterized in that:
Described nozzle is uniformly distributed along described annular duct, and quantity is 10～30 groups;
Described nozzle center is descending gradually along described annular duct.
4. device according to claim 2, is characterized in that:
The small end of described deflection cone upwards; The conical surface of described deflection cone is vertical, be uniformly distributed many rounds hole that diameter is 5～20mm; Described hole is distributed in the position of height 1/5～4/5 on deflection cone.
5. device according to claim 1, is characterized in that, described cloth bag collecting bin comprises:
Warehouse, diffusion valve, exhaust stack, cloth bag and unloading valve;
Described warehouse comprises: the cone of bottom, the cylinder on top;
Described cone bottom arranges outlet; Described unloading valve is arranged on described outlet; Described fine dust carrier pipe is connected in described cylindrical middle part;
Described exhaust stack is communicated with described cylinder top; The porch that described exhaust stack is communicated with the described warehouse described cloth bag that is connected;
Described diffusion valve is arranged on described exhaust stack;
Described diffusion valve, for regulating the flow that diffuses of conveying gas after Bag filter, is controlled the dust granules size of collecting, and regulates the content of the harmful elements such as alkali, zinc in regenerant.
6. a method that separates the harmful element such as alkali zinc in blast furnace dry method dust ash, is characterized in that, comprising:
Use cone pump that dedusting ash is sprayed in dust separator claimed in claim 1 by conveyance conduit claimed in claim 1;
Big dust particle in described dedusting ash drops to the bottom of described dust separator at Action of Gravity Field, and then drops in dedusting ash silo claimed in claim 1;
Granule dust in described dedusting ash is incorporated in fine dust carrier pipe claimed in claim 1 with air-flow, then enters in the cloth bag collecting bin described in claim 1;
Obtain the little dedusting ash of dust granules by described cloth bag collecting bin, realized separating of the big dust particle in dedusting ash and granule dust.
7. method according to claim 6, is characterized in that, described utilization cone pump sprays into dedusting ash in dust separator claimed in claim 1 by conveyance conduit claimed in claim 1, comprising:
Described dedusting ash sprays in annular duct claimed in claim 2 by described conveyance conduit; Described dedusting ash enters into described housing by the nozzle claimed in claim 2 being arranged in annular duct.
8. method according to claim 6, is characterized in that, the big dust particle in described dedusting ash drops to the bottom of described dust separator at Action of Gravity Field, and then drops in dedusting ash silo claimed in claim 1, comprising:
The dust granules that enters into the dedusting ash of described housing is blowed on the conical surface of deflection cone claimed in claim 2;
Wherein a part of dust of described dust granules can enter by the hole on the conical surface of described deflection cone the centre of described deflection cone, is directly deposited to the bottom of described housing, and then falls into described dedusting ash silo;
Another part of described dust granules glides along the conical surface of described deflection cone, falls the bottom of described housing, and then fall into described dedusting ash silo from the bottom of described deflection cone.
9. method according to claim 6, is characterized in that, the granule dust in described dedusting ash is incorporated in fine dust carrier pipe claimed in claim 1 with air-flow, then enters in the cloth bag collecting bin described in claim 1, comprising:
The described dedusting ash that contains granule dust is transferred air-flow that gas and the hole from the described deflection cone conical surface rise brings the upper space of dust separator claimed in claim 1 into;
The described dedusting ash that contains granule dust is incorporated in described cloth bag collecting bin by fine dust carrier pipe claimed in claim 1.
10. method according to claim 6, is characterized in that, obtains the little dedusting ash of dust granules by described cloth bag collecting bin, comprising:
When the claimed in claim 5 cloth bag of the described dedusting ash that contains granule dust by described cloth bag collecting bin top, the granule dust in described dedusting ash is collected by described cloth bag, and the granule dust being collected described in simultaneously can be recovered utilization;
The gas of described dedusting ash after by described Bag filter enters in atmosphere by exhaust stack claimed in claim 5 and diffusion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178212.9A CN103977956B (en) | 2014-04-29 | 2014-04-29 | A kind of separate the apparatus and method of the harmful element such as alkali zinc in blast furnace dry method dust ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178212.9A CN103977956B (en) | 2014-04-29 | 2014-04-29 | A kind of separate the apparatus and method of the harmful element such as alkali zinc in blast furnace dry method dust ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103977956A true CN103977956A (en) | 2014-08-13 |
| CN103977956B CN103977956B (en) | 2016-06-29 |
Family
ID=51270263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410178212.9A Active CN103977956B (en) | 2014-04-29 | 2014-04-29 | A kind of separate the apparatus and method of the harmful element such as alkali zinc in blast furnace dry method dust ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103977956B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886683A (en) * | 2016-04-27 | 2016-08-24 | 武汉钢铁股份有限公司 | Zinc discharge device used for blast furnace |
| CN107586961A (en) * | 2017-08-25 | 2018-01-16 | 鞍钢股份有限公司 | A kind of leaded dedusting ash physics method of removing lead |
| CN107586962A (en) * | 2017-08-25 | 2018-01-16 | 鞍钢股份有限公司 | A kind of reuse method of dedusting ash containing zinc |
| CN107586963A (en) * | 2017-08-25 | 2018-01-16 | 鞍钢股份有限公司 | A kind of leaded dedusting ash integrated conduct method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09173742A (en) * | 1995-10-24 | 1997-07-08 | Hitachi Zosen Corp | Two-stage dust collection equipment and dust removing method of exhaust gas with two-stage dust collection equipment |
| 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 |
| CN102534199A (en) * | 2012-01-18 | 2012-07-04 | 中南大学 | Comprehensive utilization process of zinc-containing iron dust |
| CN202700815U (en) * | 2012-07-25 | 2013-01-30 | 安徽华翼金属集团有限公司 | System for dedusting aluminum plastic powder |
| CN203540242U (en) * | 2013-11-06 | 2014-04-16 | 江苏省旭日冶金环保设备有限公司 | Separating pulse dust remover of high concentration dust |
-
2014
- 2014-04-29 CN CN201410178212.9A patent/CN103977956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09173742A (en) * | 1995-10-24 | 1997-07-08 | Hitachi Zosen Corp | Two-stage dust collection equipment and dust removing method of exhaust gas with two-stage dust collection equipment |
| 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 |
| CN102534199A (en) * | 2012-01-18 | 2012-07-04 | 中南大学 | Comprehensive utilization process of zinc-containing iron dust |
| CN202700815U (en) * | 2012-07-25 | 2013-01-30 | 安徽华翼金属集团有限公司 | System for dedusting aluminum plastic powder |
| CN203540242U (en) * | 2013-11-06 | 2014-04-16 | 江苏省旭日冶金环保设备有限公司 | Separating pulse dust remover of high concentration dust |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886683A (en) * | 2016-04-27 | 2016-08-24 | 武汉钢铁股份有限公司 | Zinc discharge device used for blast furnace |
| CN107586961A (en) * | 2017-08-25 | 2018-01-16 | 鞍钢股份有限公司 | A kind of leaded dedusting ash physics method of removing lead |
| CN107586962A (en) * | 2017-08-25 | 2018-01-16 | 鞍钢股份有限公司 | A kind of reuse method of dedusting ash containing zinc |
| CN107586963A (en) * | 2017-08-25 | 2018-01-16 | 鞍钢股份有限公司 | A kind of leaded dedusting ash integrated conduct method |
| CN107586961B (en) * | 2017-08-25 | 2019-03-26 | 鞍钢股份有限公司 | A kind of leaded dedusting ash physics method of removing lead |
| CN107586962B (en) * | 2017-08-25 | 2019-03-26 | 鞍钢股份有限公司 | A kind of reuse method of dedusting ash containing zinc |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103977956B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103977956B (en) | A kind of separate the apparatus and method of the harmful element such as alkali zinc in blast furnace dry method dust ash | |
| CN104226068B (en) | A kind of twin-stage rotational flow dust-removing equipment | |
| CN202845331U (en) | Environment-friendly sand-powder separation system | |
| CN204093815U (en) | Colliery dust collecting | |
| CN106669888A (en) | Efficient roller pressing grinding station and technique thereof | |
| CN204918697U (en) | Dry process acetylene carbide slag ferrosilicon recovery plant | |
| CN102989598A (en) | Method for separating fine powder from limestone | |
| CN209685885U (en) | A kind of clinker sorting process units | |
| CN102659116A (en) | Trichlorosilane synthesis gas dust removal method | |
| CN107641537B (en) | A kind of slag of coal gasification purifying process and the system for realizing its technique | |
| CN102527184A (en) | Method and system for discharge reduction of superfine particulate matters in dusty flue gas | |
| CN204073763U (en) | A kind of double-cyclone flue gas preprocessor | |
| CN210876716U (en) | Dry-wet separation system for waste catalyst | |
| CN216457914U (en) | Tar processing system for coking dust removal | |
| CN104689897A (en) | Automatic grinding system and method for cokes | |
| CN207763473U (en) | The drying system in the production of 3 microcapsule powder of omega is buried in a kind of double-contracting | |
| CN108325311B (en) | Method and device for prolonging continuous operation period of coal pyrolysis flue gas control treatment equipment | |
| CN202605937U (en) | System for reducing discharge of ultrafine particles in ash-laden gas | |
| CN203829861U (en) | Powdery paint water-spraying secondary dust removing system | |
| CN210251256U (en) | Centrifugal spray drier | |
| CN210131807U (en) | Powder mineralized substance sorting unit | |
| CN203123758U (en) | Gas-making dedusting system | |
| CN107285598B (en) | Atomizing suspension state extrinsic cycle drying equipment | |
| CN107473554B (en) | Suspended state extrinsic cycle drying system | |
| CN108273652B (en) | Vertical mill returning charge dust collection device and dust collection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |