CN113028833A - Alloy furnace system - Google Patents

Alloy furnace system Download PDF

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Publication number
CN113028833A
CN113028833A CN201911252084.7A CN201911252084A CN113028833A CN 113028833 A CN113028833 A CN 113028833A CN 201911252084 A CN201911252084 A CN 201911252084A CN 113028833 A CN113028833 A CN 113028833A
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CN
China
Prior art keywords
alloy furnace
furnace system
feeding
communicated
flue gas
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
Application number
CN201911252084.7A
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Chinese (zh)
Inventor
王玮
杨慧兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Nerin Engineering Co Ltd
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China Nerin Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Nerin Engineering Co Ltd filed Critical China Nerin Engineering Co Ltd
Priority to CN201911252084.7A priority Critical patent/CN113028833A/en
Publication of CN113028833A publication Critical patent/CN113028833A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/0016—Chamber type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • F27D11/10—Disposition of electrodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0063—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising endless belts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The invention discloses an alloy furnace system, which comprises: the alloy furnace comprises an alloy furnace body, wherein a charging opening is formed in the alloy furnace body; the hollow electrode is internally provided with a feeding channel, and at least one part of the hollow electrode extends into the alloy furnace body; the screening device is provided with a screening sieve, and a feeding hole, an upper sieve discharging hole and a lower sieve discharging hole which are positioned above the screening sieve and below the screening sieve are arranged on the screening device; the feeding device is respectively communicated with the screen discharge port and the feeding channel; and one end of the conveying device is positioned above the feeding port, and the other end of the conveying device is communicated with the discharge port on the sieve. The alloy furnace system provided by the embodiment of the invention has the advantages of strong reliability, high production efficiency and the like.

Description

Alloy furnace system
Technical Field
The invention relates to the technical field of metallurgy, in particular to an alloy furnace system.
Background
The alloy furnace is widely applied to reduction smelting of metals.
The alloy furnace has high requirement on the water content of the materials to be charged, the materials can be charged after being dried, and the materials are easy to form powder with smaller diameter after being dried.
In the alloy furnace system in the related technology, powder is directly added into the furnace from the top of the furnace, but the powder is easy to float on the surface of slag, so that the air permeability of the furnace is poor, and the furnace condition is deteriorated.
For this reason, some alloying furnace systems sinter or granulate the dried powder material to form larger diameter particles, but add process steps to the production process.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an alloy furnace system which has the advantages of high reliability, high production efficiency and the like.
To achieve the above object, an alloy furnace system according to an embodiment of the present invention includes: the alloy furnace comprises an alloy furnace body, wherein a charging opening is formed in the alloy furnace body; the hollow electrode is internally provided with a feeding channel, and at least one part of the hollow electrode extends into the alloy furnace body; the screening device is provided with a screening sieve, and a feeding hole, an upper sieve discharging hole and a lower sieve discharging hole which are positioned above the screening sieve and below the screening sieve are arranged on the screening device; the feeding device is respectively communicated with the screen discharge port and the feeding channel; and one end of the conveying device is positioned above the feeding port, and the other end of the conveying device is communicated with the discharge port on the sieve.
The alloy furnace system disclosed by the embodiment of the invention has the advantages of strong reliability, high production efficiency and the like.
In addition, the alloy furnace system according to the above embodiment of the invention may further have the following additional technical features:
according to one embodiment of the invention, the lower end of the hollow electrode extends to the lower part of the alloy furnace body.
According to one embodiment of the invention, the hollow electrode comprises: an electrode case; an electrode paste located within the electrode casing, the feed channel being formed within the electrode paste.
According to one embodiment of the invention, the charging device comprises: the bin is communicated with the screen discharge port; the lower end of the feeding pipe is communicated with the feeding channel; the feeding device is arranged below the stock bin, and the upper end of the blanking pipe is communicated with the stock bin through the feeding device.
According to one embodiment of the invention, the feeding device is a rotary valve.
According to one embodiment of the invention, the transport means is a conveyor belt.
According to one embodiment of the invention, the plurality of hollow electrodes are arranged at intervals along the length direction of the alloy furnace body.
According to one embodiment of the invention, the alloy furnace system further comprises a gas carrier device, a flue gas outlet is formed in the alloy furnace body, and the gas carrier device is respectively communicated with the flue gas outlet and the charging channel.
According to one embodiment of the present invention, the carrier gas device includes: the inlet of the flue gas cooling device is communicated with the flue gas outlet; . The inlet of the flue gas filtering device is communicated with the outlet of the flue gas cooling device; and the inlet of the fan is communicated with the outlet of the flue gas filtering device, and the outlet of the fan is communicated with the feeding channel.
According to one embodiment of the invention, the alloy furnace system further comprises a lifting device, and the lifting device is used for driving the hollow electrode to move up and down.
According to one embodiment of the invention, the lifting device is a hydraulic clasping lifting device.
According to one embodiment of the invention, the alloy furnace system further comprises a sealing device, wherein the sealing device comprises an extender and a sealing plunger, the extender is arranged on the hollow electrode, and the sealing plunger is arranged on the extender and the hollow electrode in a manner of moving up and down.
According to one embodiment of the invention, the size of the separating screen is 5-10 mm.
According to one embodiment of the invention, the air volume of the fan is 100-500Nm3/h。
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of an alloy furnace system according to an embodiment of the present invention.
Reference numerals: the alloy furnace system 1, the alloy furnace body 100, the charging opening 110, the flue gas outlet 120, the hollow electrode 200, the screening device 300, the screen top and bottom outlet 310, the screen bottom and outlet 320, the charging device 400, the bin 410, the blanking pipe 420, the feeding device 430, the conveying device 500, the carrier gas device 600, the flue gas cooling device 610, the flue gas filtering device 620, the fan 630, the lifting device 700 and the sealing device 800.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An alloy furnace system 1 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1, an alloy furnace system 1 according to an embodiment of the present invention includes an alloy furnace body 100, a hollow electrode 200, a screening device 300, a charging device 400, and a transporting device 500.
The alloy furnace body 100 is provided with a charging opening 110. A charging channel is formed in the hollow electrode 200, and at least a portion of the hollow electrode 200 protrudes into the alloy furnace body 100. The screening device 300 has a screening sieve, and the screening device 300 is provided with a feed inlet and an oversize discharge outlet 310 located above the screening sieve and an undersize discharge outlet 320 located below the screening sieve. The feeding device 400 is respectively communicated with the undersize discharge port 320 and the feeding channel. One end of the transportation device 500 is located above the charging port 110 and the other end is communicated with the oversize discharge port 310.
The operation of the alloy furnace system 1 according to the present invention will be described below with reference to the accompanying drawings.
The dried materials are put in through the feeding hole of the screening device 300, the sorting screen of the screening device 300 screens the materials, the materials with smaller diameters fall below the sorting screen through the screen holes of the sorting screen, the granular materials with larger diameters are reserved above the sorting screen, the materials below the sorting screen enter the feeding device 400 through the screen lower discharging hole 320, enter the feeding channel of the hollow electrode 200 under the driving of the feeding device 400 and finally enter the alloy furnace body 100, the materials above the sorting screen enter the transporting device 500 through the screen upper discharging hole 310, fall into the feeding hole 110 under the transportation of the transporting device 500 and finally enter the alloy furnace body 100.
According to the alloy furnace system 1 provided by the embodiment of the invention, by arranging the screening device 300, material particles with larger diameters can be screened out and directly put in from the upper part of the alloy furnace body 100 through the charging hole 110, and the particles with larger diameters can smoothly fall into a molten pool area in the alloy furnace body 100 under the action of gravity, so that the materials are prevented from being retained above molten slag to influence the air permeability of the alloy furnace body 100, the furnace condition is ensured, and the reliable operation of the alloy furnace body 100 is ensured.
In addition, by arranging the hollow electrode 200 and arranging the feeding channel in the hollow electrode 200, the materials with smaller diameters screened by the screening device 300 can directly enter a molten pool area in the alloy furnace body 100 through the feeding channel, so that the materials are further prevented from being retained above the molten slag, and the reliable operation of the alloy furnace body 100 is further ensured.
That is, according to the alloy furnace system 1 of the embodiment of the present invention, the dried material may be directly blanked, sintering or granulation of the dried material may not be required, the sintering or granulation process may be reduced while ensuring the operational reliability, and the production efficiency of the alloy furnace system 1 may be improved.
Therefore, the alloy furnace system 1 according to the embodiment of the invention has the advantages of high reliability, high production efficiency and the like.
An alloy furnace system 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
In some embodiments of the present invention, as shown in fig. 1, an alloy furnace system 1 according to an embodiment of the present invention includes an alloy furnace body 100, a hollow electrode 200, a screening device 300, a charging device 400, and a transporting device 500.
Specifically, as shown in FIG. 1, the lower end of the hollow electrode 200 extends to the lower portion of the alloy furnace body 100. Therefore, the materials with smaller diameters can directly enter the molten pool area in the alloy furnace body 100, and the influence of the materials on the air permeability of the alloy furnace body 100 is further avoided.
More specifically, as shown in fig. 1, the hollow electrode 200 includes an electrode case and an electrode paste. The electrode paste is located in the electrode case, and the feed passage is formed in the electrode paste. This facilitates the formation of a hollow electrode, making the structure of the hollow electrode 200 more reasonable.
FIG. 1 shows an alloy furnace system 1 according to one specific example of the present invention. As shown in fig. 1, the charging device 400 includes a bin 410, a blanking pipe 420, and a feeding device 430. The silo 410 is in communication with the undersize exit 320. The lower end of the down pipe 420 communicates with the feed channel. The feeding device 430 is disposed below the bin 410, and the upper end of the discharging pipe 420 is communicated with the bin 410 through the feeding device 430. This allows the storage bin 410 to store the material discharged from the undersize discharge port 320 and the feeding device 430 to drive the material, so that the material can smoothly enter the feeding passage of the hollow electrode 200 through the discharge pipe 420. Reliable feeding of the feed channel can thereby be ensured.
Alternatively, as shown in FIG. 1, the feeding device 430 is a rotary valve. This may facilitate the driving of the material.
Advantageously, as shown in fig. 1, the transport device 500 is a conveyor belt. This may facilitate transporting material from the oversize outlet 310 to above the feed inlet 110.
More advantageously, as shown in FIG. 1, hollow electrodes 200 are provided in plurality and spaced apart along the length of alloy furnace body 100. Specifically, the feeding device 400 may be provided in plurality and in one-to-one correspondence above the hollow electrode 200. The number of the hollow electrodes 200 may be three. Therefore, the materials can respectively enter different positions in the alloy furnace body 100, and the materials can react more fully in the alloy furnace body 100.
FIG. 1 shows an alloy furnace system 1 according to one specific example of the present invention. As shown in fig. 1, the alloy furnace system 1 further includes a carrier gas device 600, the alloy furnace body 100 is provided with a flue gas outlet 120, and the carrier gas device 600 is respectively communicated with the flue gas outlet 120 and the charging channel. Therefore, the smoke generated by the alloy furnace body 100 can be used for further driving the materials, so that the materials can more easily enter a molten pool area of the alloy furnace body 100, and on the other hand, the residual carbon monoxide in the smoke can be reused, so that the carbon monoxide can be recycled, and the consumption of the reducing agent can be reduced.
Specifically, as shown in fig. 1, the carrier gas device 600 includes a flue gas cooling device 610, a flue gas filtering device 620, and a blower 630. The inlet of the flue gas cooling device 610 communicates with the flue gas outlet 120. The inlet of the flue gas filtering means 620 communicates with the outlet of the flue gas cooling means 610. The inlet of the blower 630 is communicated with the outlet of the flue gas filtering device 620, and the outlet of the blower 630 is communicated with the feeding channel. Therefore, the flue gas generated by the alloy furnace body 100 can be cooled by the flue gas cooling device 610, then the flue gas is filtered by the flue gas filtering device 620, and the flue gas is driven by the fan 630, so that impurities in the flue gas can be prevented from returning to the alloy furnace body 100, and the reliability of the alloy furnace system 1 can be further improved.
Advantageously, as shown in fig. 1, the alloy furnace system 1 further comprises a lifting device 700, and the lifting device 700 is used for driving the hollow electrode 200 to move up and down. Therefore, the height of the hollow electrode 200 can be controlled by the lifting device 700, on one hand, whether the hollow electrode 200 extends into the alloy furnace body 100 can be controlled, on the other hand, the depth of the hollow electrode 200 extending into the alloy furnace body 100 can be controlled, and the reaction effect of the alloy furnace body 100 is improved.
Specifically, because the cooled flue gas and furnace burden have a cooling effect on the hollow electrode 200, the resistance of the hollow electrode 200 can be increased, and the hollow electrode 200 can be inserted into the molten pool more deeply, so that the lifting device 700 is utilized to adjust the depth of the hollow electrode 200 inserted into the molten pool, and the current efficiency can be improved conveniently.
More specifically, the lifting device 700 is a hydraulic clasping lifting device. This may facilitate the lifting and lowering of the hollow electrode 200.
More advantageously, as shown in fig. 1, the alloy furnace system 1 further comprises a sealing device 800, wherein the sealing device 800 comprises an extender and a sealing plunger, the extender is arranged on the hollow electrode 200, and the sealing plunger is arranged on the extender and the hollow electrode 200 in a manner of moving up and down. Therefore, the sealing performance of the hollow electrode 200 at different positions can be ensured, and the reliability of the alloy furnace system 1 is further improved.
Optionally, the size of the separating screen is 5-10 mm. Specifically, the aperture of the separating screen is 8 mm. Therefore, materials with proper size can be directly put above the molten pool area, and the rest materials enter the molten pool area of the alloy furnace body 100 through the hollow electrode 200.
Specifically, the air volume of the blower 630 is 100-500Nm3H is used as the reference value. Therefore, a proper driving force can be provided for the materials, and the feeding reliability is further ensured.
The water content of the dried material is less than or equal to 3 percent.
The blower 630 is communicated with the hollow electrode 200 through a pipeline, and the pressure in the pipeline is 10-30 kPa.
The flue gas temperature at the flue gas outlet 120 is 600-.
The content of carbon monoxide in the flue gas is more than or equal to 50 percent.
An electrode through hole is formed in the alloy furnace body 100, and the hollow electrode 200 extends into the alloy furnace body 100 through the electrode through hole.
The alloy furnace body 100 can also be provided with an alloy discharge port and a slag discharge port.
Other constructions and operations of the alloy furnace system 1 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. An alloy furnace system, comprising:
the alloy furnace comprises an alloy furnace body, wherein a charging opening is formed in the alloy furnace body;
the hollow electrode is internally provided with a feeding channel, and at least one part of the hollow electrode extends into the alloy furnace body;
the screening device is provided with a screening sieve, and a feeding hole, an upper sieve discharging hole and a lower sieve discharging hole which are positioned above the screening sieve and below the screening sieve are arranged on the screening device;
the feeding device is respectively communicated with the screen discharge port and the feeding channel;
and one end of the conveying device is positioned above the feeding port, and the other end of the conveying device is communicated with the discharge port on the sieve.
2. An alloy furnace system according to claim 1, wherein a lower end of said hollow electrode extends to a lower portion of said alloy furnace body.
3. An alloy furnace system according to claim 1, wherein said hollow electrode comprises:
an electrode case;
an electrode paste located within the electrode casing, the feed channel being formed within the electrode paste.
4. An alloy furnace system according to claim 1, wherein said charging device comprises:
the bin is communicated with the screen discharge port;
the lower end of the feeding pipe is communicated with the feeding channel;
the feeding device is arranged below the stock bin, and the upper end of the blanking pipe is communicated with the stock bin through the feeding device.
5. The alloy furnace system of claim 4, wherein the feed device is a rotary valve.
6. An alloy furnace system according to claim 1, wherein said transport device is a conveyor belt.
7. An alloy furnace system according to claim 1, wherein the plurality of hollow electrodes are provided at intervals in a longitudinal direction of the alloy furnace body.
8. An alloy furnace system according to claim 1, further comprising a carrier gas device, wherein a flue gas outlet is formed in the alloy furnace body, and the carrier gas device is respectively communicated with the flue gas outlet and the charging channel.
9. The alloy furnace system of claim 8, wherein the carrier gas device comprises:
the inlet of the flue gas cooling device is communicated with the flue gas outlet;
the inlet of the flue gas filtering device is communicated with the outlet of the flue gas cooling device;
and the inlet of the fan is communicated with the outlet of the flue gas filtering device, and the outlet of the fan is communicated with the feeding channel.
10. An alloy furnace system according to claim 1, further comprising an elevator for driving said hollow electrode up and down.
11. An alloy furnace system according to claim 10, wherein said lift device is a hydraulic clasping lift device.
12. An alloy furnace system according to claim 1, further comprising a sealing device comprising an extender and a sealing plunger, said extender being disposed on said hollow electrode, said sealing plunger being disposed on said extender and said hollow electrode in an up and down movable manner.
13. An alloy furnace system according to claim 1, characterized in that said sizing screen has a pore size of 5-10 mm.
14. An alloy furnace system according to claim 9, wherein the air volume of the fan is 100-500Nm3/h。
CN201911252084.7A 2019-12-09 2019-12-09 Alloy furnace system Pending CN113028833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911252084.7A CN113028833A (en) 2019-12-09 2019-12-09 Alloy furnace system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911252084.7A CN113028833A (en) 2019-12-09 2019-12-09 Alloy furnace system

Publications (1)

Publication Number Publication Date
CN113028833A true CN113028833A (en) 2021-06-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911252084.7A Pending CN113028833A (en) 2019-12-09 2019-12-09 Alloy furnace system

Country Status (1)

Country Link
CN (1) CN113028833A (en)

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