CN202057183U - Melting apparatus - Google Patents
Melting apparatus Download PDFInfo
- Publication number
- CN202057183U CN202057183U CN2011200944838U CN201120094483U CN202057183U CN 202057183 U CN202057183 U CN 202057183U CN 2011200944838 U CN2011200944838 U CN 2011200944838U CN 201120094483 U CN201120094483 U CN 201120094483U CN 202057183 U CN202057183 U CN 202057183U
- Authority
- CN
- China
- Prior art keywords
- chamber
- melting
- driving shaft
- furnace
- baffle plate
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a melting apparatus, which comprises a melting furnace and a foam destroyer. The melting furnace comprises a furnace body, a baffle plate and a burner. A furnace chamber is defined inside the furnace body. The furnace body is equipped with a feed inlet, a flue gas outlet and a melt outlet. The baffle plate arranged inside the furnace chamber divides the furnace chamber into a melting chamber and a settling chamber. The burner is arranged on the sidewall of the melting chamber. The foam destroyer comprises a housing, a driving shaft, a blade component and a driving device. A core space is defined inside the housing. The bottom of the housing is equipped with a smoke inlet and the top of the housing is equipped with a smoke outlet pipe. The driving shaft extends into the core space of the housing from the top of the housing. The blade component is arranged on the driving shaft. The driving device connected with the driving shaft is used for driving the driving shaft. By utilizing the smelting apparatus, the energy consumption and the pollution are reduced, so that the operation environment is improved.
Description
Technical field
The utility model relates to a kind of melting unit, especially relates to a kind of vanadic anhydride melting unit that is used to melt the vanadic anhydride pulvis.
Background technology
Vanadium has purposes widely as a kind of non-ferrous metal.Vanadium usually from contain the vanadium material for example the vanadium slag form with vanadic anhydride extract.Vanadium slag is made the vanadic anhydride tablet through roasting, leaching, drying, decomposition, oxidation and fusing.
Traditionally, extract drying, decomposition, the oxidation in the vanadium process and be melted in the equipment and carry out,, therefore in an equipment, cause the hear rate height because the temperature of drying, decomposition, oxidation and fusing is different.And the flue dust in the flue gas (mainly comprising a small amount of vanadic anhydride pulvis and vanadic anhydride droplet) content is many, causes the rate of recovery of vanadium low, the wasting of resources, and seriously polluted, operating environment is poor.
The utility model content
The utility model is intended to one of solve the problems of the technologies described above at least.For this reason, a purpose of the present utility model is to propose a kind of melting unit that is used to melt the vanadic anhydride pulvis, utilizes this melting unit that the vanadic anhydride pulvis is melted, and hear rate is low, pollute less, good operational environment.
To achieve these goals, comprise melting furnace and demister according to melting unit of the present utility model, wherein said melting furnace comprises: body of heater, limit furnace chamber in the described body of heater, and described body of heater has charge door, exhanst gas outlet and melt outlet; Baffle plate, described baffle plate are arranged in the described furnace chamber so that described furnace chamber is divided into melting chamber and expansion chamber, and the upper end of wherein said baffle plate links to each other with the roof of described furnace chamber and the roof of the lower end of described baffle plate and described furnace chamber preset distance apart; And burner, described burner is arranged on the sidewall of described melting chamber; Wherein said demister comprises: housing, limit inner chamber in the described housing, and the top that the bottom of described housing is provided with mouth into and described housing is provided with pipe; Driving shaft, described driving shaft extend into the described inner chamber from the top of described housing; Blade part, described blade part are installed on the described driving shaft; And drive unit, described drive unit links to each other with described driving shaft and is used to drive described driving shaft rotation.
According to melting unit of the present utility model, be used for the fusing of vanadic anhydride pulvis, thereby the fusing of vanadic anhydride pulvis is separated with drying, decomposition, the oxidation of extracting in the vanadium process, cut down the consumption of energy, reduced pollution, improved operating environment.And the vanadic anhydride droplet in the flue gas can be separated with flue gas, further improved the rate of recovery of vanadium, reduced pollution, improved operating environment.
In addition, can also have following additional technical characterictic according to melting unit of the present utility model:
Described blade part comprises: impeller, described impeller are installed on the described driving shaft; And blade, described blade is installed on the lower surface of described impeller.
Described blade part is a plurality of, and described a plurality of blade parts are installed on the described driving shaft along the axially spaced of described driving shaft.
Be distributed with through hole on the described impeller.
Be connected with the cold air access tube on the described pipe.
Described charge door is positioned at the top of described melting chamber, and described exhanst gas outlet is vertically spaced apart with described charge door along described body of heater, and described melt outlet is positioned at an end of the close described exhanst gas outlet of described body of heater.
The height of described melting chamber is greater than the height of described expansion chamber.
Described baffle plate is a plurality of, described a plurality of baffle plate is longitudinally-spaced described expansion chamber is divided into a plurality of sub-expansion chambers along described body of heater, wherein said exhanst gas outlet is positioned on the roof of described melting chamber expansion chamber farthest, and is provided with auxiliary burning nozzle on the roof of the sub-expansion chamber adjacent with described melting chamber.
The bottom surface of described furnace chamber is downward-sloping gradually along the direction from the melting chamber to the expansion chamber in the vertical, and the bottom surface of described furnace chamber is provided with the chase that extends longitudinally.
Described baffle plate is a heat-resisting steel sheet and plate.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the cross-sectional schematic according to the melting furnace of the melting unit of an embodiment of the utility model;
Fig. 2 is the cutaway view of described melting furnace along the line A-A among Fig. 1;
Fig. 3 is the cross-sectional schematic according to the demister of the melting unit of an embodiment of the utility model;
Fig. 4 is the schematic diagram of the blade part of demister shown in Figure 3; With
Fig. 5 is the partial schematic diagram of impeller of the blade part of demister shown in Figure 3.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", close the orientation of indications such as " outward " or position is based on orientation shown in the drawings or position relation, only be the utility model and simplification description for convenience of description, rather than the device or the element of indication or hint indication must have specific orientation, therefore orientation structure and operation with specific can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, need to prove that unless otherwise prescribed and limit, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be fixedly connected, also can be to removably connect; Can be directly to link to each other, also can link to each other indirectly, for the ordinary skill in the art, can understand the concrete implication of above-mentioned term as the case may be by intermediary.
Below with reference to the melting unit of accompanying drawing description according to utility model embodiment, be used to melt vanadic anhydride according to melting unit of the present utility model, therefore, also can be called the vanadic anhydride melting unit.Vanadic anhydride melting unit according to the utility model embodiment comprises melting furnace 100 and demister 200.
At first, with reference to figure 1 and Fig. 2 melting furnace 100 according to the vanadic anhydride melting unit of the utility model embodiment is described.
According to embodiment of the utility model, vanadic anhydride melting furnace 100 comprises body of heater 101, baffle plate 103 and burner 102.Body of heater 101 for example comprises furnace shell and is arranged on furnace shell interior refractory material or heat-resisting steel sheet and plate 1014.Limit furnace chamber in the body of heater 101, body of heater 101 has charge door 1011, exhanst gas outlet 1012 and melt outlet 1013.
Baffle plate 103 is arranged in the described furnace chamber described furnace chamber is divided into melting chamber R and expansion chamber C, the upper end of baffle plate 103 link to each other with the roof of described furnace chamber and the roof of the lower end of baffle plate 103 and described furnace chamber at a distance of preset distance, in other words, the top of melting chamber R and expansion chamber C separates by partition wall 103, and the bottom of melting chamber R and expansion chamber C is communicated with.
Vanadic anhydride melting furnace 100 according to the utility model embodiment can be used for the fusing of vanadic anhydride pulvis with preparation vanadic anhydride tablet, thereby the fusing of vanadic anhydride and drying, decomposition, oxidation in the vanadium leaching process are separated, reduced energy consumption.And, owing to the inner chamber of melting furnace has been divided into melting chamber R and expansion chamber C by baffle plate 103, being melted in the melting chamber R of vanadic anhydride pulvis carried out, vanadic anhydride after the fusing enters expansion chamber C sedimentation, discharge by melt outlet 1013 at last, unfused vanadic anhydride pulvis and the vanadic anhydride droplet sedimentation in expansion chamber C that is contained in the fusing in the flue gas, therefore the vanadic anhydride pulvis in the flue gas that exhanst gas outlet 1012 discharges and the content of vanadic anhydride droplet have been reduced, improved the rate of recovery of vanadium, reduce pollution, improved operating environment.
In embodiment more of the present utility model, charge door 1011 is positioned at the top of melting chamber R, exhanst gas outlet 1012 is spaced apart with charge door 1011 along vertical (left and right directions among Fig. 1) of body of heater 101, and melt outlet 1013 is arranged in an end (left end of Fig. 1) of the close exhanst gas outlet 1012 of body of heater 101.By with exhanst gas outlet 1012 and charge door 1011 spaced apart settings, make fusing and sedimentation influence each other and reduce, further reduced the content of the vanadic anhydride droplet of vanadic anhydride pulvis in the flue gas and fusing.
As illustrated in fig. 1 and 2, preferably, the height of melting chamber R can melt thus better greater than the height of expansion chamber C.Burner 102 can for example illustrate two for a plurality of and spaced apart on above-below direction in Fig. 1 and Fig. 2, further improve the effect of fusing.
In preferred embodiments more of the present utility model, baffle plate 103 is a plurality of, a plurality of baffle plates 103 are longitudinally-spaced expansion chamber C is divided into a plurality of sub-expansion chambers along body of heater 101, as shown in Figure 1, in body of heater 101, be provided with two baffle plates 103, thereby expansion chamber C is divided into two sub-expansion chamber C1, C2.Exhanst gas outlet 1012 is located on the roof of melting chamber R expansion chamber C2 farthest, and is provided with auxiliary burning nozzle 104 on the roof of the sub-expansion chamber C1 adjacent with melting chamber R.By expansion chamber C being divided into a plurality of sub-expansion chambers, can carry out multistage sedimentation, further improved effect of settling, the vanadic anhydride pulvis in the reduction flue gas and the content of vanadic anhydride droplet reduce and pollute, and improve operating environment.By auxiliary burning nozzle 104 is set, can the unfused vanadic anhydride pulvis that enter in the sub-expansion chamber C1 be melted once more, improved the fusing effect, reduced the amount of vanadic anhydride pulvis in the flue gas.
Baffle plate 103 for example can be made by heat-resisting steel sheet and plate, makes thus simply, and it is convenient to change.
As illustrated in fig. 1 and 2, emission effect for the vanadic anhydride that improves fusing, the bottom surface of furnace chamber is downward-sloping gradually along the direction from melting chamber R to expansion chamber C in the vertical, and can on the bottom surface of furnace chamber, be provided with the chase 1014 that extends longitudinally, the left end of chase 1014 links to each other with melt outlet 1013, has made things convenient for the discharge of melt (vanadic anhydride of fusion).
The demister 200 of vanadic anhydride melting unit is described below with reference to Fig. 3-5.
According to embodiment of the utility model, demister 200 comprises housing 201, driving shaft 202, blade part 203 and drive unit 205.
As shown in Figure 3, limit inner chamber in the housing 201, the top that the bottom of housing 201 is provided with mouth 2012 into and housing 201 is provided with pipe 2011.Driving shaft 202 extend into the described inner chamber from the top of housing 201.Blade part 203 is installed on the driving shaft 202, and drive unit 205 links to each other with driving shaft 202 and is used to drive driving shaft 202 rotations, thereby drives blade part 203 rotations that are installed on the driving shaft 202.As shown in Figure 3, in an example of the present utility model, drive unit 205 is a motor, and this motor drives driving shaft 202 by belt transmission.For example, on the axle of motor, first belt pulley 206 is installed, second belt pulley, 208, the first belt pulleys 206 is installed on driving shaft 202 links to each other by belt 207 with second belt pulley 208.By adopting belt transmission, motor 205 can be provided with away from driving shaft 202, thereby reduces heat in the housing 201 to the adverse effect of motor.
In an embodiment of the present utility model, shown in Fig. 3-5, blade part 203 comprises impeller 2032 and blade 2031, impeller 2032 is installed on the driving shaft 202, shown in Fig. 3-5, impeller 2032 has centre bore 2033, and driving shaft 202 is engaged in the centre bore 2033.Blade 2031 is installed on the lower surface of impeller 2032, and driving shaft 202 drives blade 2031 rotations by impeller 2032 thus, and blade 2031 and flue gas collision fall the vanadic anhydride droplet in the flue gas.Preferably, impeller 2032 is distributed with a plurality of through holes 2034, and through hole 2034 can be distributed on the impeller 2032 regularly.More specifically, impeller 2032 is divided into 8 fan sections, the through hole 2034 in each fan section distributes regularly.By on impeller 2032, forming through hole 2034, can help flue gas and move up by through hole 2034.In the example shown in Fig. 3-5, in each through hole 2034, be welded with a bit of siphunculus respectively, can further improve the foam removal effect thus.
As shown in Figure 3, in preferred embodiment of the present utility model, blade part 203 is a plurality of, a plurality of blade parts 203 are along the axially spaced driving shaft 202 that is installed in of driving shaft 202, a plurality of thus blade parts 203 carry out multistage collision with flue gas, further improve the effect of removing the vanadic anhydride droplet in the flue gas.
In a concrete example of the present utility model, pipe 2011 is two and with respect to driving shaft 202 symmetric arrangement, be connected with cold air access tube 204 on the pipe 2011, be used in pipe 2011, infeeding cold air enters pipe 2011 with chilling flue gas, vanadic anhydride droplet remaining in the flue gas is solidified become solid, powdery, further reduced the content of the vanadic anhydride in the flue gas, improved the rate of recovery of vanadium, reduced the dustiness in the flue gas, reduce pollution, improved operating environment.
Below the simple operation of describing according to the vanadic anhydride melting unit of the utility model embodiment.
In melting chamber R, spray into coal gas and oxygen to heating in the melting chamber R by burner 1012, for example be heated to 800-850 degree centigrade temperature, the vanadic anhydride pulvis is joined in the melting chamber R from charge door 1011, be heated fusing in the process that the vanadic anhydride pulvis descends in melting chamber R.
The vanadic anhydride of fusing flows to 1013 discharges of melt outlet along the bottom surface of furnace chamber, and melt outlet 1013 can link to each other with pelleter and carry out film-making, thereby obtains the vanadic anhydride tablet.
Flue gas and unfused vanadic anhydride pulvis and the vanadic anhydride droplet that is contained in the fusing in the flue gas enter in the sub-expansion chamber C1 from the slit of melting chamber R below the baffle plate of the rightmost side, in sub-expansion chamber C1, spray coal gas and oxygen by auxiliary burning nozzle 104, thereby unfused vanadic anhydride pulvis is assisted heat fused, and Rong Hua vanadic anhydride melt-flow is discharged to melt outlet 1013 once more.
Flue gas and remaining a small amount of vanadic anhydride pulvis and be contained in vanadic anhydride droplet in the flue gas and enter sub-expansion chamber C2 from the slit of sub-expansion chamber C1 by next baffle plate 103 below and carry out sedimentation once more, flue gas is from exhanst gas outlet 1012 discharges then.
The flue gas of discharging from exhanst gas outlet 1012 is from advancing the inner chamber that mouth 2012 enters housing 201,203 rotations of drive unit 205 driven vane parts, flue gas collides with blade 2031 in the process that rises, vanadic anhydride droplet in the flue gas falls and separates with flue gas, the through hole 2034 that flue gas passes on the impeller 2032 moves up, step by step with blade 2031 collisions.At last, flue gas enters pipe 2011, supplies with cold air by cold air access tube 204 to advancing mouth 2012 simultaneously, so that flue gas is carried out chilling, vanadic anhydride droplet remaining in the flue gas is frozen into powdery falls in the melting furnace, and flue gas is discharged demister 200.
According to the vanadic anhydride melting unit of the utility model embodiment, by repeatedly sedimentation and the auxiliary smoke content that has reduced from the flue gas that exhanst gas outlet 1012 is discharged that melts, reduced pollution, improved operating environment.And, in the vanadic anhydride melting furnace of the utility model embodiment, only carry out the heat fused of vanadic anhydride pulvis, for example temperature can be controlled in 800-850 degree centigrade the scope, has reduced energy consumption.
By demister flue gas is separated with wherein vanadic anhydride, and by chilling vanadic anhydride droplet remaining in the flue gas is solidified and become solid, powdery, further reduced the content of the vanadic anhydride in the flue gas, improved the rate of recovery of vanadium, reduced the dustiness in the flue gas, reduce pollution, improved operating environment.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a melting unit is characterized in that, comprising:
Melting furnace, described melting furnace comprises:
Body of heater limits furnace chamber in the described body of heater, and described body of heater has charge door, exhanst gas outlet and melt outlet;
Baffle plate, described baffle plate are arranged in the described furnace chamber so that described furnace chamber is divided into melting chamber and expansion chamber, and the upper end of wherein said baffle plate links to each other with the roof of described furnace chamber and the roof of the lower end of described baffle plate and described furnace chamber preset distance apart; With
Burner, described burner are arranged on the sidewall of described melting chamber; And
Demister, described demister comprises:
Housing limits inner chamber in the described housing, and the top that the bottom of described housing is provided with mouth into and described housing is provided with pipe;
Driving shaft, described driving shaft extend into the described inner chamber from the top of described housing;
Blade part, described blade part are installed on the described driving shaft; With
Drive unit, described drive unit link to each other with described driving shaft and are used to drive described driving shaft rotation.
2. melting unit according to claim 1 is characterized in that, described blade part comprises:
Impeller, described impeller are installed on the described driving shaft; With
Blade, described blade is installed on the lower surface of described impeller.
3. melting unit according to claim 2 is characterized in that, described blade part is a plurality of, and described a plurality of blade parts are installed on the described driving shaft along the axially spaced of described driving shaft.
4. melting unit according to claim 2 is characterized in that, is distributed with through hole on the described impeller.
5. melting unit according to claim 1 is characterized in that, is connected with the cold air access tube on the described pipe.
6. melting unit according to claim 1, it is characterized in that, described charge door is positioned at the top of described melting chamber, and described exhanst gas outlet is vertically spaced apart with described charge door along described body of heater, and described melt outlet is positioned at an end of the close described exhanst gas outlet of described body of heater.
7. melting unit according to claim 6 is characterized in that the height of described melting chamber is greater than the height of described expansion chamber.
8. melting unit according to claim 7, it is characterized in that, described baffle plate is a plurality of, described a plurality of baffle plate is longitudinally-spaced described expansion chamber is divided into a plurality of sub-expansion chambers along described body of heater, wherein said exhanst gas outlet is positioned on the roof of described melting chamber expansion chamber farthest, and is provided with auxiliary burning nozzle on the roof of the sub-expansion chamber adjacent with described melting chamber.
9. melting unit according to claim 1 is characterized in that, the bottom surface of described furnace chamber is downward-sloping gradually along the direction from the melting chamber to the expansion chamber in the vertical, and the bottom surface of described furnace chamber is provided with the chase that extends longitudinally.
10. melting unit according to claim 1 is characterized in that, described baffle plate is a heat-resisting steel sheet and plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200944838U CN202057183U (en) | 2011-04-01 | 2011-04-01 | Melting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200944838U CN202057183U (en) | 2011-04-01 | 2011-04-01 | Melting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202057183U true CN202057183U (en) | 2011-11-30 |
Family
ID=45017155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200944838U Expired - Lifetime CN202057183U (en) | 2011-04-01 | 2011-04-01 | Melting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202057183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735052A (en) * | 2011-04-01 | 2012-10-17 | 中国恩菲工程技术有限公司 | Melting unit |
| CN104990408A (en) * | 2015-07-01 | 2015-10-21 | 洛阳展腾焊材有限公司 | Smelting furnace |
-
2011
- 2011-04-01 CN CN2011200944838U patent/CN202057183U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735052A (en) * | 2011-04-01 | 2012-10-17 | 中国恩菲工程技术有限公司 | Melting unit |
| CN102735052B (en) * | 2011-04-01 | 2015-05-06 | 中国恩菲工程技术有限公司 | Melting unit |
| CN104990408A (en) * | 2015-07-01 | 2015-10-21 | 洛阳展腾焊材有限公司 | Smelting furnace |
| CN104990408B (en) * | 2015-07-01 | 2017-04-12 | 洛阳展腾焊材有限公司 | Smelting furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2551625B1 (en) | Furnace for melting inorganic salts | |
| CN102690958B (en) | Nickel-cobalt smelting furnace and nickel-cobalt smelting process | |
| CN202057183U (en) | Melting apparatus | |
| CN102242277B (en) | Oxygen-rich bottom blown copper smelter and oxygen-rich bottom blown technology for extraction of copper | |
| CN102735052B (en) | Melting unit | |
| CN102796875A (en) | Zinc leaching slag treatment device and treatment process | |
| CN104152713A (en) | Side-blowing lead melting reduction device | |
| CN103894538A (en) | Precoated sand hot-process regeneration equipment and regeneration method | |
| CN109365090B (en) | Steel slag thermal crushing device | |
| CN202078780U (en) | Demister | |
| CN104152715B (en) | Bottom blowing tin-making process | |
| RU2130975C1 (en) | Method of weighed melting of sulfide raw material | |
| CN202119246U (en) | Melting furnace | |
| CN102735051B (en) | Melting furnace | |
| CN201427987Y (en) | Automatic slag extractor for magnesium smelting | |
| US9310133B2 (en) | Rotary hearth furnace exhaust gas duct apparatus and method for operating same | |
| CN104152712A (en) | A side-blown lead melting reduction process | |
| CN202786369U (en) | Zinc-leached residue treating device | |
| CN213514994U (en) | Calcination rotary furnace for ceramsite slag-removing sand | |
| CN102728146A (en) | Demister | |
| CN200940117Y (en) | Cooling equipment for high temperature clinker | |
| CN204138734U (en) | Blow side plumbous melting reduction device | |
| CN202164341U (en) | Oxygen-enriched bottom-blowing copper smelting furnace | |
| CN107702543B (en) | A kind of metallurgical furnace reducing furnace inner metal liquid remnants | |
| CN220462220U (en) | Continuous production device for regenerated copper rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111130 Effective date of abandoning: 20150506 |
|
| RGAV | Abandon patent right to avoid regrant |