CN108707714A - A kind of steel scrap and iron content solid waste multi-functional melt furnace - Google Patents
A kind of steel scrap and iron content solid waste multi-functional melt furnace Download PDFInfo
- Publication number
- CN108707714A CN108707714A CN201810942350.8A CN201810942350A CN108707714A CN 108707714 A CN108707714 A CN 108707714A CN 201810942350 A CN201810942350 A CN 201810942350A CN 108707714 A CN108707714 A CN 108707714A
- Authority
- CN
- China
- Prior art keywords
- iron
- furnace
- steel scrap
- air port
- solid waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 78
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 239000002910 solid waste Substances 0.000 title claims abstract description 24
- 239000003034 coal gas Substances 0.000 claims abstract description 37
- 238000003723 Smelting Methods 0.000 claims abstract description 20
- 239000000571 coke Substances 0.000 claims abstract description 17
- 239000002817 coal dust Substances 0.000 claims abstract description 14
- 239000002893 slag Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 3
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000011257 shell material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture Of Iron (AREA)
Abstract
A kind of steel scrap of present invention proposition and iron content solid waste multi-functional melt furnace, furnace body is vertical structure, and furnace body includes top feeding section, shaft and cupola well, and steel scrap and other iron-containing charges and coke are added from top feeding section, it is equipped with iron mouth in bottom of furnace body, slag iron is discharged from iron mouth；Smelting furnace uses hot air smelting, the cupola well top to be equipped with air port, hot wind is blasted by air port, and coal gas or coal dust burner are alternately arranged or be equipped with above air port with air port.The present invention is using steel scrap and other iron content solid wastes as raw material, is molten iron by steel scrap and iron content solid waste melting, so as to rationally recycle scrap resources, while the iron content waste of process part iron and steel enterprise using coke or coal dust or coal gas as fuel.
Description
Technical field
The present invention relates to steel, the metal smelt of casting industry and field of solid waste resource utilization, and more particularly to a kind of
Steel scrap and iron content solid waste multi-functional melt furnace.
Background technology
2016, China's steel scrap consumed 90,100,000 tons, steel scrap unit consumption 111kg/t, scrap ratio 11.1%.China makes steel steel scrap
Than being 11%, converter ton steel steel scrap consumes 72.1kg, and the U.S. makes steel scrap ratio 70.74%.
National 90,920,000 tons of scrap iron and steel total resources in 2016, self-produced 44,300,000 tons of steel enterprise, 46,450,000 tons of social steel scrap, into
170,000 tons of steel scrap of mouth.To year ends 2016,8,000,000,000 tons of China's steel accumulation, 1.6 hundred million tons of scrap resources yield.To the year two thousand twenty
End, 10,000,000,000 tons of China's steel accumulation, 200,000,000 tons of scrap resources yield.
As more than one hundred million tons of ground bar steels exit, steel scrap iron resource increases, and flow direction tends to be reasonable.
5-10 from now on, steel scrap iron resource will be unprecedented soaring, and iron and steel enterprise will be as the trend of Future Development using steel scrap.
How rationally the utilization scrap resources of economy are current iron and steel enterprises just in problems faced.
1 ton of molten iron solid fuel consumption about 500kg of blast furnace process at present, electric furnace using pure scrap smelting power consumption will substantially on
It rises, and smelting furnace melting 1t steel scrap solid fuel consumptions are 130~150kg, if using portion gas fuel, coke consumption meeting
It is lower.
In Production Process for Steel Enterprise, while a large amount of sludge and dust are produced, comminuted steel shot dirt occurrence quantity per ton about 130~
150kg, and the dust generated is partly also needed as dangerous waste management, multi-functional melt furnace, that is, fusible mostly as fixed-end forces
Refine steel scrap, at the same can melting part pass through the dust of briquetting processing, recycle the resources such as iron therein, zinc, accomplish the classification of resource
Recycling, recycles.Iron and steel enterprise uses multi-functional melt furnace Scrap Smelting and dust, can locate while producing molten iron
Part share is managed, and fuel consumption and discharge can be greatly reduced in production process, economic and social benefit is notable.
On casting industry, furnace cupola is still sure to occupy first of casting iron melting equipment, is still responsible for the casting of 80% or more weight so far
The melting task of ironware.Using multi-functional melt furnace, part can be replaced to cast using combustion gas while meeting casting smelting
Coke reduces pollutant emission.
Invention content
In order to rationally recycle scrap resources, while the iron content waste of process part iron and steel enterprise, the present invention provides one
Kind of steel scrap and iron content solid waste hot air blast furnace produce molten iron and by sorting metals therein using steel scrap and iron content solid waste as raw material
Recycling.
The present invention reaches goal of the invention by following technical solution：A kind of steel scrap and iron content solid waste multi-functional melt furnace, stove
Body is vertical structure, and furnace body includes top feeding section, shaft and cupola well, and steel scrap and other iron-containing charges and coke feed from top
Section is added, and is equipped with iron mouth in bottom of furnace body, slag iron is discharged from iron mouth；
Smelting furnace uses hot air smelting, the cupola well top to be equipped with air port, blast hot wind by air port, replace cloth with air port
Set or be equipped with above air port coal gas or coal dust burner.
Further, the upper shaft is cylindrical or truncated cone-shaped structure.
Further, the shaft uses water cooled furnace body, sprayable refractory in furnace shell.
Further, the air port uses copper water cooled tuyere, iron-containing charge to be melt into molten iron drop above tuyere zone
It falls in cupola well, air port is goed deep into stove, and refractory material is built by laying bricks or stones in the zone furnace of air port.
Further, the burner uses oxy coal burner or coal gas burner, ensures that coal dust and oxygen are complete in inlet front end
Full burning realizes the coke for reducing air port burning by the control of air port and the burner blow rate required.
Further, the cupola well is cylindrical structure, and internal diameter is shunk with shaft at straight barrel type or slightly.
Further, the cupola well uses water cooled furnace body, cupola well bottom to be equipped with iron mouth, molten iron and clinker and be discharged from iron mouth.
Further, it is equipped with coal gas between the smelting furnace upper of furnace body and feeding section and exports endless tube, coal gas exports endless tube
Interior pressure control ensures that coal gas does not escape out in tiny structure, and feeding section height ensures that extraneous air enters the resistance of coal gas export endless tube
Power loss is more than the negative pressure pressure in coal gas export endless tube, ensures that air does not enter coal gas system.
Steel scrap proposed by the present invention and iron content solid waste multi-functional melt furnace, using steel scrap and other iron content solid wastes as raw material, with
Coke or coal dust or coal gas are fuel, are molten iron by steel scrap and iron content solid waste melting.Smelting furnace is vertical structure, and furnace body includes adding
Expect that furnace body, coal dust or coal gas is added from stove from by feeding device in section, preheating section, melt zone etc., steel scrap, ferrous material and coke
Body sprays into, while blasting hot wind in shaft, and coal gas is exported from upper of furnace body, and molten iron and clinker are discharged from lower portion of furnace body, the present invention
Scrap resources, while the iron content waste of process part iron and steel enterprise can rationally be recycled.
Description of the drawings
Fig. 1 show the steel scrap and iron content solid waste multi-functional melt furnace structural schematic diagram of present pre-ferred embodiments.
Specific implementation mode
The specific implementation mode of the present invention is provided below in conjunction with attached drawing, but the present invention is not limited to the following embodiments and the accompanying drawings.Root
According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that attached drawing be all made of it is very simple
The form of change and use non-accurate ratio, be only used for conveniently, lucidly aid in illustrating the embodiment of the present invention purpose.
Referring to FIG. 1, Fig. 1 show the steel scrap of present pre-ferred embodiments and iron content solid waste multi-functional melt furnace structure is shown
It is intended to.A kind of steel scrap of present invention proposition and iron content solid waste multi-functional melt furnace, furnace body are vertical structure, and furnace body includes top charging
Section 10, shaft 20 and cupola well 30, steel scrap and other iron-containing charges and coke are added from top feeding section 10, are equipped in bottom of furnace body
Iron mouth 40, slag iron are discharged from iron mouth 40；Smelting furnace uses hot air smelting, 30 top of the cupola well to be equipped with air port 50, pass through air port
50 blast hot wind, and coal gas or coal dust burner 60 are alternately arranged or be equipped with above air port 50 with air port 50.
According to present pre-ferred embodiments, furnace charge, which is added, uses truck or drop-bottom material basket, material basket bottom above furnace body
It opens, the feeding device 70 of the top feeding section 10 in stove is added in furnace charge from material basket, and top feeding section 10 is cylindrical structure,
Using the structure of furnace shell inner lining steel brick, prevent from causing sidewall damage in furnace charge dropping process.
Furnace charge under the effect of gravity gradually under be advanced into shaft 20, in shaft 20, heat exchange is carried out with the coal gas of uplink,
According to oxides-containing iron furnace charge is partly needed, then oxides-containing iron is partially reduced to low price ferriferous oxide or metal in shaft 20
Iron, 20 top of the shaft are cylindrical or truncated cone-shaped structure, and the shaft 20 uses water cooled furnace body, spray refractory material in furnace shell
Material.
Smelting furnace uses hot air smelting, is equipped with air port 50 in 20 bottom of shaft, hot wind is blasted by air port 50, shaft 20
Air port 50 releases heat and generates coal gas with 2000 DEG C or so of temperature, part of coke burning, and the air port 50 uses copper water cooling
Air port, iron-containing charge are melt into molten iron above tuyere zone and drop onto in cupola well 30, and air port 50 is goed deep into stove, air port zone furnace
Inside build refractory material by laying bricks or stones.
Smelting furnace replaces coke in order to reduce coke dosage, using part coal dust or coal gas, in tuyere zone in addition to blasting heat
Outside wind, coal gas or coal dust burner 60 are alternately arranged or are equipped with above air port 50 with air port 50.Burner 60 is fired using efficient oxygen coal
Burner or coal gas burner ensure that coal dust and oxygen pass through in inlet front end completely burned under the premise of meeting cupola well thermic load
The control of 60 blow rate required of air port 50 and burner realizes the coke for reducing air port burning, utilizes coal dust or the work of coal gas substitute for coke
With.
The molten iron of molten condition enters cupola well 30 after tuyere zone melts, and cupola well 30 is cylindrical structure, internal diameter and stove
Body 20 is shunk at straight barrel type or slightly, and cupola well 30 uses water cooled furnace body, can be as needed in iron mouth region domain or all setting coolings
Wall builds refractory material in cupola well by laying bricks or stones, and cupola well service life, 30 bottom of cupola well is protected to be equipped with iron mouth 40, molten iron and clinker from 40 row of iron mouth
Go out, slag sluicing system is carried out in skimming tool.
The coal gas of high temperature that coke or coal dust, the coal gas to burn before air port generates carries out heat in upper shaft and the material of downlink
It exchanges, 250 DEG C or so of the gas temperature of stock gas export mouth, coal gas and furnace charge fully exchange heat in shaft, ensure smelting furnace
Interior heat has higher utilization ratio.
It is equipped with coal gas between the smelting furnace upper of furnace body and feeding section 10 and exports endless tube 80, coal gas exports 80 internal pressure of endless tube
Power is controlled in tiny structure, ensures that coal gas does not escape out, and feeding section height ensures that extraneous air enters the resistance of coal gas export endless tube 80
Loss is more than the negative pressure pressure in coal gas export endless tube 80, ensures that the air of open type furnace roof will not be inhaled into coal gas system.
Although the present invention has been disclosed as a preferred embodiment, however, it is not to limit the invention.Skill belonging to the present invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (8)
1. a kind of steel scrap and iron content solid waste multi-functional melt furnace, it is characterised in that：Furnace body is vertical structure, and furnace body includes that top adds
Expect that section, shaft and cupola well, steel scrap and other iron-containing charges and coke are added from top feeding section, iron mouth be equipped in bottom of furnace body,
Slag iron is discharged from iron mouth；
Smelting furnace use hot air smelting, the cupola well top be equipped with air port, hot wind is blasted by air port, be alternately arranged with air port or
Coal gas or coal dust burner are equipped with above air port.
2. steel scrap according to claim 1 and iron content solid waste multi-functional melt furnace, which is characterized in that the upper shaft is
Cylindrical or truncated cone-shaped structure.
3. steel scrap according to claim 1 and iron content solid waste multi-functional melt furnace, which is characterized in that the shaft uses water
Black furnace shell, sprayable refractory in furnace shell.
4. steel scrap according to claim 1 and iron content solid waste multi-functional melt furnace, which is characterized in that the air port uses copper
Water cooled tuyere processed, iron-containing charge are melt into molten iron above tuyere zone and drop onto in cupola well, and air port is goed deep into stove, air port region
Build refractory material in stove by laying bricks or stones.
5. steel scrap according to claim 1 and iron content solid waste multi-functional melt furnace, which is characterized in that the burner uses oxygen
Coal burner or coal gas burner ensure that coal dust and oxygen in inlet front end completely burned, pass through the control of air port and the burner blow rate required
System realizes the coke for reducing air port burning.
6. steel scrap according to claim 1 and iron content solid waste multi-functional melt furnace, which is characterized in that the cupola well is cylinder
Shape structure, internal diameter are shunk with shaft at straight barrel type or slightly.
7. steel scrap according to claim 1 and iron content solid waste multi-functional melt furnace, which is characterized in that the cupola well uses water
Black furnace shell, cupola well bottom are equipped with iron mouth, molten iron and clinker and are discharged from iron mouth.
8. steel scrap according to claim 1 and iron content solid waste multi-functional melt furnace, which is characterized in that the smelting furnace furnace body
It is equipped with coal gas between top and feeding section and exports endless tube, coal gas exports the control of ring overpressure in tiny structure, ensures that coal gas does not escape
Go out, feeding section height ensures that extraneous air enters the drag losses of coal gas export endless tube more than the negative pressure pressure in coal gas export endless tube
Power ensures that air does not enter coal gas system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942350.8A CN108707714A (en) | 2018-08-17 | 2018-08-17 | A kind of steel scrap and iron content solid waste multi-functional melt furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942350.8A CN108707714A (en) | 2018-08-17 | 2018-08-17 | A kind of steel scrap and iron content solid waste multi-functional melt furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108707714A true CN108707714A (en) | 2018-10-26 |
Family
ID=63873702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810942350.8A Pending CN108707714A (en) | 2018-08-17 | 2018-08-17 | A kind of steel scrap and iron content solid waste multi-functional melt furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108707714A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669935A (en) * | 2019-10-29 | 2020-01-10 | 北京大学 | Process for multi-component separation and tailing quenching and tempering utilization of red mud |
| CN111397366A (en) * | 2020-05-06 | 2020-07-10 | 江苏必瑞驰科技有限公司 | Scrap steel melting furnace device with oxygen combustion gun as heat source |
| CN112080643A (en) * | 2020-09-29 | 2020-12-15 | 湖北理工学院 | Method for efficiently recovering metals in solid waste by smelting method and solid waste smelting furnace |
| CN112981030A (en) * | 2021-02-23 | 2021-06-18 | 中冶南方工程技术有限公司 | Treatment furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140480A (en) * | 1977-07-18 | 1979-02-20 | Modern Equipment Company | Hot cupola gas burner |
| US4530101A (en) * | 1983-04-15 | 1985-07-16 | Westinghouse Electric Corp. | Electric arc fired cupola for remelting of metal chips |
| CN101654738A (en) * | 2009-09-15 | 2010-02-24 | 山西太钢不锈钢股份有限公司 | Method for smelting chromated-nickel-containing molten iron by stainless steel dedusting ash and iron scale companion material |
| CN102331169A (en) * | 2011-01-13 | 2012-01-25 | 陈久斌 | Smelting furnace |
| CN102978319A (en) * | 2012-11-26 | 2013-03-20 | 罕王实业集团有限公司 | Energy-saving environment-friendly laterite-nickel ore smelting apparatus and process |
| CN103194557A (en) * | 2013-03-28 | 2013-07-10 | 姜尊瀚 | Novel gas fusing and melting furnace |
| CN208733152U (en) * | 2018-08-17 | 2019-04-12 | 宝钢工程技术集团有限公司 | A kind of steel scrap and iron content solid waste multi-functional melt furnace |
-
2018
- 2018-08-17 CN CN201810942350.8A patent/CN108707714A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140480A (en) * | 1977-07-18 | 1979-02-20 | Modern Equipment Company | Hot cupola gas burner |
| US4530101A (en) * | 1983-04-15 | 1985-07-16 | Westinghouse Electric Corp. | Electric arc fired cupola for remelting of metal chips |
| CN101654738A (en) * | 2009-09-15 | 2010-02-24 | 山西太钢不锈钢股份有限公司 | Method for smelting chromated-nickel-containing molten iron by stainless steel dedusting ash and iron scale companion material |
| CN102331169A (en) * | 2011-01-13 | 2012-01-25 | 陈久斌 | Smelting furnace |
| CN102978319A (en) * | 2012-11-26 | 2013-03-20 | 罕王实业集团有限公司 | Energy-saving environment-friendly laterite-nickel ore smelting apparatus and process |
| CN103194557A (en) * | 2013-03-28 | 2013-07-10 | 姜尊瀚 | Novel gas fusing and melting furnace |
| CN208733152U (en) * | 2018-08-17 | 2019-04-12 | 宝钢工程技术集团有限公司 | A kind of steel scrap and iron content solid waste multi-functional melt furnace |
Non-Patent Citations (2)
| Title |
|---|
| T.ARIYAMA 等: "喷吹粉煤和塑料的废钢铁熔炼新工艺的开发", vol. 29, no. 5, pages 281 - 287 * |
| 马广大 等: "《大气污染控制工程》", 中国环境科学出版社, pages: 284 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669935A (en) * | 2019-10-29 | 2020-01-10 | 北京大学 | Process for multi-component separation and tailing quenching and tempering utilization of red mud |
| CN111397366A (en) * | 2020-05-06 | 2020-07-10 | 江苏必瑞驰科技有限公司 | Scrap steel melting furnace device with oxygen combustion gun as heat source |
| CN112080643A (en) * | 2020-09-29 | 2020-12-15 | 湖北理工学院 | Method for efficiently recovering metals in solid waste by smelting method and solid waste smelting furnace |
| CN112981030A (en) * | 2021-02-23 | 2021-06-18 | 中冶南方工程技术有限公司 | Treatment furnace |
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| PB01 | Publication | ||
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Application publication date: 20181026 |