CN87107197A - Reclaim the method and apparatus of metal and metal alloy - Google Patents
Reclaim the method and apparatus of metal and metal alloy Download PDFInfo
- Publication number
- CN87107197A CN87107197A CN87107197.5A CN87107197A CN87107197A CN 87107197 A CN87107197 A CN 87107197A CN 87107197 A CN87107197 A CN 87107197A CN 87107197 A CN87107197 A CN 87107197A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- gas
- coal
- metal
- fixed bed
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 title claims abstract description 18
- 229910001092 metal group alloy Inorganic materials 0.000 title claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 46
- 239000003245 coal Substances 0.000 claims abstract description 44
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 39
- 239000001301 oxygen Substances 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 21
- 238000007872 degassing Methods 0.000 claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 10
- 229910000640 Fe alloy Inorganic materials 0.000 claims abstract description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 7
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 239000002912 waste gas Substances 0.000 claims description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 230000002829 reductive effect Effects 0.000 claims description 5
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 238000006722 reduction reaction Methods 0.000 description 31
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000002309 gasification Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 2
- 101100433727 Caenorhabditis elegans got-1.2 gene Proteins 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- -1 ferrous metal oxide Chemical class 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
- C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
In this method, metal or metal alloy, especially iron alloy reclaim after reducing in the reduction zone of metal oxide by the coal bed formation of reducing gas.In order to reclaim the metal that strong affinity is arranged with oxygen, coal bed is made up of three fixed bed: degassing coal bottom, it is the molten bath of liquid reduction metal and slag down.In addition, oxygen or certain oxygen-containing gas blast the middle layer to form high-temperature reductibility gas, certain distance more than this, finely-divided metal oxide raw material adding middle layer.The burning gas of carbon particles and oxygen or oxygen-containing gas then adds the top fixed bed.
Description
The present invention relates to reclaim metal or metal alloy, the especially method of iron alloy, and the device of implementing this method.This method is utilized reducing gas to pass through a coal bed formation reduction zone metal oxide is reduced.
At EP-A-0174, some particulate non-ferrous metal oxide mineral of a kind of fusing has been described in 291, as copper, lead, zinc, nickel, the method for cobalt and tin.In this method, raw material adds the reduction zone that is formed by the coal fluidized layer in the molting and gasifying reduction furnace.The burning raw material is reduced into metal after by this reduction zone and collects through molting and gasifying reduction furnace bottom.
EP-A-0174,291 these methods of explanation are lower than in temperature to be made the reaction of metal oxide and simple substance carbon and is favourable when reducing below 1000 ℃, but is used to reclaim metal and metal alloy, particularly iron alloy, as iron magnesium, when siderochrome and iron silicon alloy some problem will appear.Reason is that the oxide compound of these alloys only could reclaim when using simple substance carbon as reductive agent more than 1000 ℃.Under high like this temperature of reaction, the duration of contact between the carbon particles of burning raw material and formation fluidized layer is shorter.
Purpose of the present invention is exactly in order to overcome above-mentioned shortcoming and difficulty and a kind of method and apparatus to be provided.Initially being intended that of this method and apparatus will be reclaimed metal and metal alloy from the particulate oxide compound in the molting and gasifying reduction furnace.Especially iron alloy, for example iron magnesium, siderochrome and iron silicon alloy.In these oxide compounds metal and oxygen have extremely strong avidity thereby only under the high temperature more than 1000 ℃ could with simple substance carbon generation reduction reaction.
The method of using in order to realize this purpose is a coal bed of being made up of three immovable beds:
-bottom is degassing coal (degassed coal), its metal and slag that is liquid reduction down,
-middle layer, oxygen or certain oxygen-containing gas feed wherein to form a kind of high-temperature reductibility gas, mainly are made up of CO.Add wherein at this layer top a certain distance particulate oxide raw material;
-top layer, the combustion gases of carbon particles and oxygen or oxygen-containing gas feed wherein.
It is more favourable when the particulate oxide raw material size of particles that uses reaches 6mm.
The size of particles that is suitable for constituting the coal of fixed bed can be 5～100mm.That suitable especially is 5～30mm.
According to most preferred embodiment, the thickness of middle layer and top layer should remain between 1～4 meter.
The characteristics that adopt the another embodiment of the inventive method are from oxygen by the reduction zone and aforementioned thin carbon granules the carbon dust of dust-like to be separated the back to feed in the burner with oxygen or oxygen-containing gas, and these burners are the fixing coal seam towards the top all.
Separated waste gases can be used as the delivery medium of particulate oxide raw material from carbon granule.
Employed coal preferably can still can keep its block characteristic afterwards in degassing reaction (degassing).Thereby work as coal particle size scope at 5～100mm, especially in the time of within 5～30mm, through after the degassing reaction and the coal grain in should have at least 50% still can keep its initial particle size size range, promptly respectively between 5～100mm or 5～30mm, the rest part size is then less than above numerical value.
The advantage of method of the present invention is that it has kept utilizing known whole advantages in the blast furnace reduction process of fossil oil heating, as counterflow heat exchange, the good separation of the non-noble metal oxide necessary metallurgical reaction that in fixed bed, carries out of reduction and metal and slag with simple substance carbon.The coking of coal or the degassing can be finished under the situation that does not produce tar and other condensed components.The gas that produces in the coal degasification process can be used as the additional reductive agent of the reducing gas that forms after the degassing gasification.
In a specific embodiments, can in a prereduction process, carry out prereduction and handle oxide raw material.This is for the production particularly advantageous of iron alloy.In this process, realize the reduction of ferric oxide component in the raw material.
Another special benefits that present method also has is some non-noble element such as silicon, chromium, and the reduction of magnesium can be finished under the condition of consumed power not.The control method of the required energy of the coal degassing is very simple in the method for the present invention.Its reason is the too small coal dust of particle of the not enough 5mm of size of particles, discharges after return the last blast area of oxygen-containing gas again and emitted heat by the oxygen-containing gas oxidation after separating with the waste gas of molting and gasifying reduction furnace.
From the test of the resolution characteristic of coal grain as can be known, the coal particle size is that part degasification process in being preheated to 1400 ℃ reaction chamber of 16～20mm needs one hour.The volume of reaction chamber is 12dm
3After spraying into the cold inertness gas cooling, particle distribution is measured.
The present invention also comprises one in order to realize the device of said process.An i.e. molting and gasifying reduction furnace with refractory-lined blast furnace formula.An one coal charging opening and a vapor pipe are arranged at its top.The side-wall hole of stove penetrates carbon dust and oxygen or oxygen-containing gas air-supply duct.Lower furnace then is provided with the discharge gate of collecting molten metal and slag.This apparatus features is formed by three the fixed bed A that stacks up, B, C:
-end fixed bed A and in position between the fixed bed B be provided with oxygen or oxygen-containing gas air blast endless tube;
-this more than position a certain distance particulate oxide raw material annular blast pipe is set;
-an annular burner be set to introduce carbon granules and oxygen or oxygen-containing gas between fixed bed B and the top fixed bed C at this in more than the position.
Obviously, a high temperature cyclone separator being set on gas exhaust duct, to make carbon dust in the waste gas separate and make its ash output hole and annular burner polyphone to connect be useful.
In another specific embodiments, another high temperature cyclone separator connect with above-mentioned cyclonic separator.Installing oxide raw material inlet device on the connecting pipeline between the two.The ash output hole of the cyclonic separator in back then links to each other with the oxide raw material annular blast pipe with transport pipe.
Method of the present invention and realize that the device of this method is described in detail by accompanying drawing.Wherein Fig. 1 is the schematic diagram of molting and gasifying reduction furnace and the auxiliary equipment that is attached thereto, and Fig. 2 is the temperature curve of fusing, gasification reduction furnace.
1 is the molting and gasifying reduction furnace of blast furnace formula among Fig. 1, and refractory liner 2 is arranged in it.The reduction furnace bottom is in order to hold liquid metal 3 and molten slag 4.5 is the metal discharge port, and 6 is slag discharge port.There is lumped coal charging opening 7 the reduction furnace top.The top of liquid bath 3,4 then is fixing coal bed, the coal bottom A that promptly outgases, and no gas passes through in it.Top one deck is the degassing coal middle layer B of ventilation, and last layer is top coal granulosa C again, and gas is by this layer.
On the sidewall of reduction furnace 1, feed blowpipe, promptly annular blast pipe 8, be respectively applied for and introduce oxygen or oxygen-containing gas.These pipes are arranged in the intersection of airproof fixed bed A and fixed bed B.A certain distance more than this, promptly the mid point to fixed bed B top is equipped with ring nozzle formula blowpipe 9, and the particulate oxide raw material is blown into middle layer B thus.
Again up, promptly at B layer and C layer intersection, annular burner 10 passes molting and gasifying reduction furnace 1 sidewall.The mixture of powdery carbon granules and oxygen or oxygen-containing gas then feeds thus.On reduction furnace 1 top the waste gas that produces in vapor pipe 11, the stove is housed and guides high temperature cyclone separator 12 into through this pipe.
After being suspended in powdery carbon particles in the waste gas and isolating,, behind the feeding device 13 through the exit, enter annular burner 10 via filling tube 14 by the ash output hole of separator 12 from high temperature wind separator.15 is the pneumatic tube to burner 10 logical oxygen-containing gass.Utilize feeding device 13 can regulate the filling extent of high temperature cyclone separator 12 and influence its separation efficiency.
On high temperature cyclone separator 12, link to each other with another high temperature cyclone separator 17 through pipeline 16.Feeding device 18 links to each other with pipeline 16.This feeding device is then by hopper 19 feed that the particulate oxide raw material is housed.Gas from pipeline 16 then can be used as the material output medium.Through the ash output hole and the transport pipe 20 of high temperature cyclone separator 17, the particulate oxide raw material infeeds blowpipe 9 behind pipeline 21 again.
Draw a vapor pipe 22 in the upper end of high temperature cyclone separator 17, unnecessary waste gas discharges thus.The waste gas of discharging can be used as transmission medium after pipeline 23 is blown into pipeline 21 in cooling and compression.
When implementing method of the present invention, the coal that the adds molting and gasifying reduction furnace 1 top processing that outgas in fixed bed C is useful.The thermal reduction gas that the heat part that the coal degassing needs rises in fixed bed B, the heat that another part is then produced from hard carbon and oxygen-containing gas burning in the burner 10.The thickness of coal seam C is selected should be guaranteed to be not less than 950 ℃ by the temperature of gas behind this layer.Thereby guarantee tar and the complete cracking of other condensation component.Like this, fixed bed C just can not blockage phenomenon.It is best when in an embodiment, the thickness of bed C is 1～4 meter.The thickness of fixed bed B is also got 1～4 meter for good.The coal degassing back of bed C sinks to promptly forming fixed bed B.
The particulate oxide raw material carries out prereduction with thermal reduction gas and dust and handles and separate once more from gas in second high temperature cyclone separator 17.It is useful that particulate carbon containing dust and thermal reduction gas are added simultaneously, and reason is the CO that forms in carbon and the reduction reaction
2React and generation CO, thereby still keep extremely strong reductibility from the high-temperature gas of reduction furnace 1.After handling back particulate oxide raw material and dust separation, prereduction melts and by the simple substance carbon reduction at the B layer.The fusing and the required heat that reduces are introduced oxygen-containing gas by blowpipe 8 in reduction furnace provide with temperature gasification and high degassing coal.Molten metal that forms at fixed bed B and slag are to dirty and collect below the A layer and discharge.
Fig. 2 shows along the temperature variation curve of fusing-gasification reduction furnace 1 short transverse, and wherein the body of heater height is represented with ordinate, and temperature is then represented with abscissa.Solid line represents to add the temperature variation of coal, and dotted line represents to generate the temperature variation of gas.Mark 8 is represented the height of annular blast pipe 8 on the ordinate, and 9 represent the height of particulate oxide raw material (ore deposit) blowpipe 9, and 10 represent the height of the burner 10 of carbon granules recirculation, and 24 represent the height of the vertex 24 of fixed bed C.11 height of representing vapor pipe 11 and charging opening 7 respectively.
Claims (11)
1, a kind of recovery metal and metal alloy, as the method for iron alloy, wherein metal oxide reduces in the reduction zone that is formed by the coal bed by reducing gas, and the improvement of method comprises the coal bed that is formed with three fixed bed, promptly passes through
--degassing coal bottom fixed bed is provided, and it is the molten bath of liquid as-reduced metal and slag down,
--a center fixed bed is provided and oxygen or oxygen-containing gas are introduced wherein to form the high-temperature reductibility gas that mainly is made of CO, a certain distance adds this middle layer from top with the particulate oxide raw material simultaneously.
--provide a top fixed bed and to wherein introducing by carbon particles and oxygen or the inflammable gas formed with certain oxygen-containing gas.
2, the method that requires in the claim 1, wherein the size of particles of particulate oxide raw material reaches 6mm.
3, the method that requires in the claim 1, the size of particles of wherein forming the coal of three fixed bed is 5～100mm.
4, the method that requires in the claim 3, wherein the size of particles of coal is 5～30mm.
5, the method that requires in the claim 1, wherein the thickness of center fixed bed and top fixed bed all remains on 1～4 meter.
6, the method that requires in the claim 1, wherein waste gas passes fixed bed formation reduction zone, also comprises separating the powdery carbon granules and it is introduced burner also by the aforementioned top fixed bed with oxygen or oxygen-containing gas from aforementioned waste gas.
7, the method that requires in the claim 6, the carbon particles after wherein separating adds in the aforementioned burner under the condition of high temperature.
8, the method that requires in the claim 6 has wherein been removed the delivery medium of the waste gas of carbon particles as aforementioned particulate oxide raw material.
9, a kind ofly be used to reclaim metal and metal alloy, device as iron alloy, this method is a reducing metal oxide in the reduction zone that forms after reducing gas is by coal bed, device includes the molting and gasifying reduction furnace of the blast furnace formula of refractory liner, coal charging opening and gas exhaust duct are arranged at its top, penetrate the steam line of carbon particles and oxygen or certain oxygen-containing gas on the sidewall, its underpart then is used to collect liquid metal and slag, and improved characteristics are:
-providing by the fixing coal bed layer in a bottom, center fixed coal bed layer and top be the fixing coal bed layer of three ply that constitutes of coal bed layer fixedly,
-fixedly provide a toroidal nozzle on the position between coal bed layer and the center fixed coal bed layer in the degassing coal bottom that is covered with liquid reducing metal and molten slag bath, thus the main high temperature reduction gas of forming by CO formed to introduce oxygen or oxygenous gas,
-a certain distance provides a toroidal nozzle with introducing particulate oxide raw material more than this,
-on higher a certain position, between center fixed bed and top fixed bed, providing an annular burner, carbon particles and oxygen or oxygen-containing gas feed in it.
10, the device that requires in the claim 9 wherein also comprises a high temperature cyclone separator, is used for separating carbon particles from waste gas, also comprises a gas exhaust duct and the coupling unit that this separator is connected in series with annular burner.
11, the device that requires in the claim 10 wherein also comprises
The high temperature cyclone separator of-another band ash output hole,
-polyphone connects the adapter of two cyclonic separators,
-oxide raw material the feeding device that take over to link to each other therewith,
-transport pipe that the ash output hole of second cyclonic separator is linked to each other with the oxide raw material toroidal nozzle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA2886/86 | 1986-10-30 | ||
| AT0288686A AT386006B (en) | 1986-10-30 | 1986-10-30 | METHOD AND SYSTEM FOR THE EXTRACTION OF METALS OR. METAL ALLOYS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87107197A true CN87107197A (en) | 1988-08-10 |
| CN1010325B CN1010325B (en) | 1990-11-07 |
Family
ID=3541860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87107197A Expired CN1010325B (en) | 1986-10-30 | 1987-10-30 | Method and apparatus for melting iron alloy |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JP2572084B2 (en) |
| KR (1) | KR950001909B1 (en) |
| CN (1) | CN1010325B (en) |
| AT (1) | AT386006B (en) |
| AU (1) | AU597737B2 (en) |
| BR (1) | BR8705781A (en) |
| CA (1) | CA1324265C (en) |
| CZ (1) | CZ279319B6 (en) |
| DD (1) | DD262676A5 (en) |
| DE (1) | DE3735966A1 (en) |
| IN (1) | IN172088B (en) |
| PH (1) | PH24466A (en) |
| SK (1) | SK769087A3 (en) |
| SU (1) | SU1582991A3 (en) |
| UA (1) | UA2125A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925758A (en) * | 2015-06-10 | 2015-09-23 | 武汉锅炉集团工程技术有限公司 | Method for continually preparing sodium sulfide by use of vertical reverberatory furnace and vertical reverberatory furnace for continual preparation of sodium sulfide |
| CN113134617A (en) * | 2021-04-19 | 2021-07-20 | 山东理工大学 | Plasma spheroidizing deoxidation 3D printing metal powder preparation device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT386007B (en) * | 1986-10-30 | 1988-06-27 | Voest Alpine Ag | METHOD AND SYSTEM FOR THE EXTRACTION OF METALS OR. METAL ALLOYS |
| DE4108283A1 (en) * | 1991-03-14 | 1992-09-17 | Kortec Ag | METHOD FOR PRODUCING LIQUID METAL FROM FINE-GRAIN METAL OXIDE PARTICLES, AND REDUCTION AND MELTING STOVES FOR CARRYING OUT THE METHOD |
| DE19634348A1 (en) | 1996-08-23 | 1998-02-26 | Arcmet Tech Gmbh | Melting unit with an electric arc furnace |
| UA74680C2 (en) * | 2004-02-23 | 2006-01-16 | Anatolii Tymofiiovych Neklesa | A method for producing iron or alloys thereof and a plant for realizing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN164687B (en) * | 1984-08-16 | 1989-05-13 | Voest Alpine Ag | |
| SE453304B (en) * | 1984-10-19 | 1988-01-25 | Skf Steel Eng Ab | KIT FOR MANUFACTURE OF METALS AND / OR GENERATION OF BATTLE FROM OXIDE ORE |
| AT382390B (en) * | 1985-03-21 | 1987-02-25 | Voest Alpine Ind Anlagen | METHOD FOR THE PRODUCTION OF LIQUID PIPE IRON OR STEEL PRE-PRODUCTS |
| AT386007B (en) * | 1986-10-30 | 1988-06-27 | Voest Alpine Ag | METHOD AND SYSTEM FOR THE EXTRACTION OF METALS OR. METAL ALLOYS |
-
1986
- 1986-10-30 AT AT0288686A patent/AT386006B/en not_active IP Right Cessation
-
1987
- 1987-10-19 IN IN910/DEL/87A patent/IN172088B/en unknown
- 1987-10-21 AU AU80005/87A patent/AU597737B2/en not_active Ceased
- 1987-10-23 DE DE19873735966 patent/DE3735966A1/en active Granted
- 1987-10-27 CZ CS877690A patent/CZ279319B6/en not_active IP Right Cessation
- 1987-10-27 SK SK7690-87A patent/SK769087A3/en unknown
- 1987-10-28 DD DD87308359A patent/DD262676A5/en not_active IP Right Cessation
- 1987-10-28 CA CA000550404A patent/CA1324265C/en not_active Expired - Fee Related
- 1987-10-29 SU SU874203567A patent/SU1582991A3/en active
- 1987-10-29 JP JP62274590A patent/JP2572084B2/en not_active Expired - Lifetime
- 1987-10-29 UA UA4203567A patent/UA2125A1/en unknown
- 1987-10-29 BR BR8705781A patent/BR8705781A/en not_active IP Right Cessation
- 1987-10-30 KR KR1019870012075A patent/KR950001909B1/en not_active IP Right Cessation
- 1987-10-30 CN CN87107197A patent/CN1010325B/en not_active Expired
- 1987-10-30 PH PH36005A patent/PH24466A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925758A (en) * | 2015-06-10 | 2015-09-23 | 武汉锅炉集团工程技术有限公司 | Method for continually preparing sodium sulfide by use of vertical reverberatory furnace and vertical reverberatory furnace for continual preparation of sodium sulfide |
| CN113134617A (en) * | 2021-04-19 | 2021-07-20 | 山东理工大学 | Plasma spheroidizing deoxidation 3D printing metal powder preparation device |
| CN113134617B (en) * | 2021-04-19 | 2023-01-17 | 山东理工大学 | Plasma spheroidizing deoxidation 3D printing metal powder preparation device |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA288686A (en) | 1987-11-15 |
| UA2125A1 (en) | 1994-12-26 |
| CA1324265C (en) | 1993-11-16 |
| AT386006B (en) | 1988-06-27 |
| DE3735966C2 (en) | 1991-01-17 |
| AU597737B2 (en) | 1990-06-07 |
| JP2572084B2 (en) | 1997-01-16 |
| JPS63118021A (en) | 1988-05-23 |
| KR950001909B1 (en) | 1995-03-06 |
| SU1582991A3 (en) | 1990-07-30 |
| IN172088B (en) | 1993-03-27 |
| CZ769087A3 (en) | 1994-11-16 |
| BR8705781A (en) | 1988-05-31 |
| AU8000587A (en) | 1988-05-05 |
| PH24466A (en) | 1990-07-18 |
| SK278800B6 (en) | 1998-03-04 |
| SK769087A3 (en) | 1998-03-04 |
| DD262676A5 (en) | 1988-12-07 |
| KR890006831A (en) | 1989-06-16 |
| CN1010325B (en) | 1990-11-07 |
| CZ279319B6 (en) | 1995-04-12 |
| DE3735966A1 (en) | 1988-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2011336788B2 (en) | Method and apparatus for particle recycling in multiphase chemical reactors | |
| CN1036471C (en) | A smelting reduction method with high productivity | |
| EP0384454A2 (en) | Apparatus for gasifying or combusting solid carbonaceous material | |
| CA2096579C (en) | Method of producing molten pig iron or molten steel pre-products and a plant therefor | |
| KR20030055357A (en) | An apparatus and method for recycling dust and sludge containing iron ironmaking process using coal and fine ore | |
| EP1114190B1 (en) | Blast furnace with narrowed top section and method of using | |
| JP3543837B2 (en) | Method for directly reducing iron oxide-containing raw materials using a solid carbon-containing reducing agent | |
| CA1200102A (en) | Process and apparatus for generating synthesis gas | |
| RU2477755C2 (en) | Method and device for preparation of reducing agent to be used during metal production, metal production process and metal production unit using above described device | |
| US5948139A (en) | Process for the production of molten pig iron or steel pre-products and a plant for carrying out the process | |
| CN101124434B (en) | Cyclone bypass for a circulating fluidized bed reactor | |
| CN109680114B (en) | System and method for gasifying pulverized coal and reducing iron ore in cooperation | |
| CN87107197A (en) | Reclaim the method and apparatus of metal and metal alloy | |
| US5259865A (en) | Very low slag iron making process | |
| US5380352A (en) | Method of using rubber tires in an iron making process | |
| EP0657550A1 (en) | Method and apparatus for producing iron | |
| CN1158146A (en) | Process for producing liquid pig iron or semi-finished steel products and installation for implementing it | |
| JPH09235559A (en) | Utilization of residue and waste in terms of material and energy in upright furnace | |
| CN1302122C (en) | Reduction smelting method in a shaft furnace with recovery of volatile secondary metals | |
| CN1009738B (en) | Process and apparatus for preparing binderfree hot briquettes for smelting purpose | |
| JPH0332612B2 (en) | ||
| JP3938980B2 (en) | Waste gasification apparatus and furnace wall self-coating method | |
| JP3941196B2 (en) | Waste gasification method and apparatus | |
| KR950001910B1 (en) | Method and apparatus for recovering metal and alloy | |
| WO1997012997A1 (en) | Scrap melting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |