CN106288784B - The power frequency cored integrated poured zinc-melting furnace of induction - Google Patents
The power frequency cored integrated poured zinc-melting furnace of induction Download PDFInfo
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- CN106288784B CN106288784B CN201610635007.XA CN201610635007A CN106288784B CN 106288784 B CN106288784 B CN 106288784B CN 201610635007 A CN201610635007 A CN 201610635007A CN 106288784 B CN106288784 B CN 106288784B
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- zinc
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- melt flow
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Classifications
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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
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
- F27B14/061—Induction furnaces
- F27B14/065—Channel type
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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
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- 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
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- 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
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0875—Two zones or chambers, e.g. one used for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/01—Charges containing mainly non-ferrous metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses a kind of power frequency cored integrated poured zinc-melting furnace of induction, including furnace body and inductor, furnace body outside is evenly distributed with multiple inductors, the furnace wall of furnace body is equipped with zinc collar extension, and it is connect with inductor by zinc collar extension, the axial cross section flare of zinc collar extension, the diameter that inboard wall of furnace body one end is located in zinc collar extension are more than diameter positioned at furnace body outer wall one end.This power frequency cored integrated poured zinc-melting furnace of induction is relative to traditional semi-enclosed reverberatory furnace, and melting efficiency is high, and metal loss is small, the rate of recovery of zinc material is higher by least two percentage point than traditional reflective stove, and flue dust is not generated substantially, environmental pollution is small, it can be achieved that clean manufacturing.
Description
Technical field
The present invention relates to Zinc Material for Batteries casting technology field, more particularly to a kind of power frequency cored integrated poured molten zinc of induction
Stove.
Background technology
Metal casting is the basic industries of industrial development, but its smoke contamination is also extremely serious, metal casting enterprise
It will produce a large amount of flue dust in fusion-casting process, in addition casting temperature is high, metal itself can also burn, volatilize at high temperature, no
But serious pollution is caused to atmospheric environment, to resource and great waste.
Currently, production Battery Zinc Cake producer's majority use semi-enclosed reverberatory furnace, using diesel oil as fuel combustion after
The thermal energy of generation carries out molten zinc, and reverberatory furnace uses semi-enclosed structure, wastes thermal energy, and according to statistics, manufacturing finished product zinc cake per ton needs
With 32 kilograms of diesel oil, energy consumption is quite big.In addition, there is also following disadvantages for reverberatory furnace：(1) burner hearth zinc liquid temperature is difficult to control, stove
Temperature is also uneven everywhere in thorax；(2) metal is easy to burn, burns, aoxidizes, yield rate is low, metal loss is big, be easy to cause ring
It pollutes in border；(3) do not keep the temperature, energy consumption it is big；(4) labor intensity of worker is big.Therefore, a set of low energy consumption, soot emissions for research and probe
Small smelting-casting equipment has great positive effect to the development of founding industry.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of power frequency cored integrated poured molten zinc of induction
The melting efficiency of stove, the zinc-melting furnace is high, and metal loss is small, and environmental pollution is small, it can be achieved that clean manufacturing.
The technical scheme is that：A kind of power frequency cored integrated poured zinc-melting furnace of induction, including furnace body and inductor, stove
Multiple inductors are evenly distributed with around external, the furnace wall of furnace body is equipped with zinc collar extension, and is connect with inductor by zinc collar extension,
The axial cross section flare of zinc collar extension, the diameter that inboard wall of furnace body one end is located in zinc collar extension are more than positioned at furnace body outer wall one end
Diameter.
The furnace body includes bell, furnace wall and partition wall, is burner hearth inside furnace wall, and bell is set to above burner hearth, and partition wall is set to
In furnace wall, and the space inside furnace wall is divided into smelting zone and casting region, partition wall bottom is equipped with undercurrent mouth, smelting zone and casting
It is connected to by undercurrent mouth between area；The furnace wall of smelting zone side is equipped with zinc material entrance, and the furnace wall of casting region side is equipped with zinc
Material outlet.Wherein, after zinc material melts in smelting zone, the larger solid impurity of proportion is deposited in smelting zone bottom, heavier smaller
Impurity float on smelting zone top, make more pure zinc material from undercurrent mouth flow into casting region, by casting region zinc material export
It flows out and is molded, to improve the purity and quality of zinc cake.
The furnace wall includes the furnace wall bottom being connected and furnace wall top, and furnace wall bottom is integrated poured using refractory material
The integral structure of formation, furnace wall top are to pile up the wall body structure to be formed, the outlet of zinc material and the equal position of zinc material entrance using brick
In on the bottom of furnace wall.Wherein, the general refractory material in market can be used in refractory material.
The partition wall includes composition portion under composition portion and partition wall on the partition wall being connected, and composition portion is to use brick on partition wall
The wall body structure to be formed is piled up, composition portion is the integral structure formed using refractory material casting under partition wall, and undercurrent mouth is located at
Under partition wall in composition portion.Wherein, the general refractory material in market can be used in refractory material.
As a preferred embodiment, the junction on the furnace wall bottom and furnace wall top is additionally provided with nitrogen charging mouth, at nitrogen charging mouth
Equipped with nitrogen blanketing valve, the external gas supply mechanism of nitrogen blanketing valve, the end of nitrogen blanketing valve is stretched into smelting zone.In zinc material fusion process, pass through
Nitrogen blanketing valve pours nitrogen into burner hearth, on the one hand can prevent zinc material from being aoxidized, play a protective role, and on the other hand can take away
Moisture in smelting zone and other foreign gases, play the role of removal of impurities.
As a preferred embodiment, the connection type between the inductor and furnace body connects for flange form.Which is
In the junction of inductor and furnace body, ring flange is set on inductor and furnace body respectively, passes through bolt between two ring flanges
It is locked.Being rapidly assembled and disassembled for inductor may be implemented in which, when single inductor breaks down, may be implemented
Quick-replaceable inductor makes zinc-melting furnace keep continual work, to improve its production efficiency.
The inductor includes iron core, primary coil, melt flow channel and support ontology, and iron core is equipped in the middle part of support ontology,
Primary coil is arranged in outer diameter, and melt flow channel is arranged in primary coil periphery, and melt flow channel is connected to the zinc collar extension on furnace wall, melts
Zinc material in body runner forms secondary coil.Correspond on the position of support ontology zinc collar extension there are two setting, two zinc on furnace wall
Collar extension is connected to the entrance and exit of melt flow channel respectively, forms toed-in shape structure, makes steadily to carry out in melt flow channel single
To flowing.
The cylindrical structure of iron core, for primary coil in annular shape, melt flow channel is in half runway shape.
As a preferred embodiment, the melt flow channel is the cross-section channel being opened on support ontology.
As another preferred embodiment, the melt flow channel is the variable cross-section channel being opened on support ontology；With melt
The center line at runner both ends is line of demarcation, the entrance side of melt flow channel, the cross-sectional width of melt flow channel along melt flows direction by
Tapered small, the cross-sectional width of the outlet side of melt flow channel, melt flow channel is gradually expanded along melt flows direction.
The operation principle of this power frequency cored integrated poured zinc-melting furnace of induction is the operation principle using transformer, passes through " electricity-
The conversion regime of magnetic-electric-thermal " achievees the purpose that melt zinc ingot metal.The primary that the coil of inductor is equivalent to transformer is (i.e. primary
Coil), the zinc material in inductor melt flow channel is equivalent to the secondary (i.e. secondary coil) of transformer.After coil is powered, due to
Electromagnetic induction acts on, and the zinc material in melt flow channel will produce powerful induced current, and zinc material is melted；Afterwards in thermal convection current and electromagnetism
Under the action of power, the zinc material in melt flow channel can constantly flow, and the heat in melt flow channel is constantly transmitted in furnace, to
Zinc material in entire smelting furnace is set to be heated and be melted.
According to transformer principle, induction coil and the current relationship in melt flow channel are as follows：
I1N1=I2N2, I2=I1N1/N2；
In formula：I1、N1For the electric current and the number of turns of primary coil.I2、N2For the electric current and the number of turns of secondary coil, in inductor
In, secondary coil is the becket that zinc material is formed in melt flow channel, is 1 circle, therefore very big by the current strength of becket.
Electric energy is transformed into thermal energy in melt flow channel, and electric heating conversion relational expression is in the unit interval：Q=0.24I2 2R2T.Its
Middle R2The resistance of zinc material in melt flow channel；Q is the energy value caused by inductor acting, I2For the electric current of secondary coil, T is
Time (unit is the second).
It can be seen that thermal energy caused by melt flow channel is also sizable.
The present invention compared with the existing technology, has the advantages that：
For this power frequency cored integrated poured zinc-melting furnace of induction relative to traditional semi-enclosed reverberatory furnace, melting efficiency is high,
Metal loss is small, and the rate of recovery of zinc material is higher by least two percentage point than traditional reflective stove, and does not generate flue dust substantially, and environment is dirty
It contaminates small, it can be achieved that clean manufacturing.
The zinc collar extension of this power frequency cored integrated poured zinc-melting furnace of induction uses horn-like structure, in conjunction with the melt on inductor
Runner forms toed-in shape structure, makes steadily to carry out one-way flow in melt flow channel, and hot friendship is carried out into the inside of furnace body
It changes, and so that zinc-melting furnace is produced from stirring action by the magnetic field of its generation, accelerate the fusing of zinc material.
Partition wall is arranged in furnace interior of this integrated poured zinc-melting furnace of power frequency cored induction, make to be separated into inside it smelting zone and
Casting region, and with undercurrent mouth be connected to, it can be achieved that when continuous production feeds intake the uniformity and casting temperature of product composition it is stability,
The quality of product is further ensured.
In this power frequency cored integrated poured zinc-melting furnace of induction, induction furnace four is distributed in using the inductor of multiple small volumes
Week the temperature of furnace interior melt everywhere can be made uniform；It is connected, it can be achieved that not blowing out using flange form between inductor and furnace body
The inductor for replacing damage, saves time and cost, and improves production efficiency；Meanwhile according to the actual size size and need of furnace body
Want, the inductor quantity of furnace body periphery flexibly can be arranged and allocate, using flexible and facilitate.
Description of the drawings
Fig. 1 is the structural schematic diagram of this power frequency cored integrated poured zinc-melting furnace of induction.
Fig. 2 is the Section A-A view of Fig. 1.
Fig. 3 is the structural schematic diagram that single inductor is connect with furnace body.
Fig. 4 is the structural schematic diagram of single inductor.
Fig. 5 is structural schematic diagram when melt flow channel is cross-section channel on inductor.
Fig. 6 is structural schematic diagram when melt flow channel is variable cross-section channel on inductor.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment 1
A kind of power frequency cored integrated poured zinc-melting furnace of induction of the present embodiment, as shown in Figure 1, including furnace body 1 and inductor 2,
Furnace body outside is evenly distributed with multiple inductors, and the furnace wall of furnace body is equipped with zinc collar extension 3, and is connected by zinc collar extension and inductor
It connects, the axial cross section flare of zinc collar extension, is more than positioned at the diameter of inboard wall of furnace body one end in zinc collar extension and is located at furnace body outer wall one
The diameter at end.
As shown in Fig. 2, furnace body includes bell 4, furnace wall 5 and partition wall 6, and it is burner hearth inside furnace wall, bell is set to above burner hearth,
Partition wall is set in furnace wall, and the space inside furnace wall is divided into smelting zone 7 and casting region 8, and partition wall bottom is equipped with undercurrent mouth 9,
It is connected to by undercurrent mouth between smelting zone and casting region；As shown in Figure 1, the furnace wall of smelting zone side is equipped with zinc material entrance 10,
The furnace wall of casting region side is equipped with zinc material and exports 11.Wherein, after zinc material melts in smelting zone, the larger solid impurity of proportion
It is deposited in smelting zone bottom, heavier smaller impurity floats on smelting zone top, and more pure zinc material is made to be flowed into from undercurrent mouth
Casting region is flowed out and is molded by the zinc material outlet of casting region, to improve the purity and quality of zinc cake.
Furnace wall includes the furnace wall bottom 5-1 being connected and furnace wall top 5-2, and furnace wall bottom is integrally poured using refractory material
The integral structure formed is noted, furnace wall top is to pile up the wall body structure to be formed using brick, and the outlet of zinc material and zinc material entrance are equal
On the bottom of furnace wall.Wherein, the general refractory material in market can be used in refractory material.Partition wall includes the partition wall being connected
Composition portion 6-2 under upper composition portion 6-1 and partition wall, composition portion is to pile up the wall body structure to be formed using brick on partition wall, under partition wall
Composition portion is the integral structure formed using refractory material casting, and undercurrent mouth is located under partition wall in composition portion.Wherein, fire proofed wood
The general refractory material in market can be used in material.
As shown in figure 3, the connection type between inductor and furnace body connects for flange form.Which is in inductor and stove
Ring flange 12 is arranged on inductor and furnace body, is locked by bolt 13 between two ring flanges respectively for the junction of body,
It is additionally provided with gasket 14 between two ring flanges.Being rapidly assembled and disassembled for inductor may be implemented in which, when single inductor
When failure, quick-replaceable inductor may be implemented, zinc-melting furnace is made to keep continual work, to improve its production effect
Rate.
As shown in figure 4, inductor includes iron core 15, primary coil 16, melt flow channel 17 and support ontology 18, ontology is supported
Middle part is equipped with iron core, and outer diameter is arranged primary coil, and primary coil periphery is arranged melt flow channel, on melt flow channel and furnace wall
Zinc collar extension is connected to, and the zinc material in melt flow channel forms secondary coil.Correspond on furnace wall on the position of support ontology there are two setting
Zinc collar extension, two zinc collar extensions are connected to the entrance and exit of melt flow channel respectively, are formed toed-in shape structure, are made in melt flow channel
Steadily carry out one-way flow.
Wherein, the cylindrical structure of iron core, for primary coil in annular shape, melt flow channel is in half runway shape.
As shown in figure 5, melt flow channel is the cross-section channel being opened on support ontology, arrow is zinc material in melt in figure
Runner direction in runner.
The operation principle of this power frequency cored integrated poured zinc-melting furnace of induction is the operation principle using transformer, passes through " electricity-
The conversion regime of magnetic-electric-thermal " achievees the purpose that melt zinc ingot metal.The primary that the coil of inductor is equivalent to transformer is (i.e. primary
Coil), the zinc material in inductor melt flow channel is equivalent to the secondary (i.e. secondary coil) of transformer.After coil is powered, due to
Electromagnetic induction acts on, and the zinc material in melt flow channel will produce powerful induced current, and zinc material is melted；Afterwards in thermal convection current and electromagnetism
Under the action of power, the zinc material in melt flow channel can constantly flow, and the heat in melt flow channel is constantly transmitted in furnace, to
Zinc material in entire smelting furnace is set to be heated and be melted.
According to transformer principle, induction coil and the current relationship in melt flow channel are as follows：
I1N1=I2N2, I2=I1N1/N2；
In formula：I1、N1For the electric current and the number of turns of primary coil.I2、N2For the electric current and the number of turns of secondary coil, in inductor
In, secondary coil is the becket that zinc material is formed in melt flow channel, is 1 circle, therefore very big by the current strength of becket.
Electric energy is transformed into thermal energy in melt flow channel, and electric heating conversion relational expression is in the unit interval：Q=0.24I2 2R2T.Its
Middle R2The resistance of zinc material in melt flow channel；Q is the energy value caused by inductor acting, I2For the electric current of secondary coil, T is
Time (unit is the second).
It can be seen that thermal energy caused by melt flow channel is also sizable.
Embodiment 2
A kind of power frequency cored integrated poured zinc-melting furnace of induction of the present embodiment, compared with Example 1 compared with difference exists
In：As shown in fig. 6, melt flow channel is the variable cross-section channel being opened on support ontology；Center line with melt flow channel both ends is
The cross-sectional width in line of demarcation, the entrance side of melt flow channel, melt flow channel is gradually reduced along melt flows direction, and melt flow channel goes out
Mouth side, the cross-sectional width of melt flow channel are gradually expanded along melt flows direction, and arrow is stream of the zinc material in melt flow channel in figure
Road direction.
Embodiment 3
A kind of power frequency cored integrated poured zinc-melting furnace of induction of the present embodiment, compared with Example 1 compared with difference exists
In：As shown in Fig. 2, the junction on furnace wall bottom and furnace wall top is additionally provided with nitrogen charging mouth 19, it is equipped with nitrogen blanketing valve 20 at nitrogen charging mouth, is filled
The external gas supply mechanism of nitrogen pipe, the end of nitrogen blanketing valve are stretched into smelting zone.In zinc material fusion process, by nitrogen blanketing valve into burner hearth
Nitrogen is poured, on the one hand can prevent zinc material from being aoxidized, play a protective role, on the other hand can take away the moisture in smelting zone
And other foreign gases, play the role of removal of impurities.
As described above, the present invention can be better realized, above-described embodiment is only presently preferred embodiments of the present invention, is not used
To limit the practical range of the present invention；It is i.e. all according to equivalent changes and modifications made by the content of present invention, all wanted for right of the present invention
Range claimed is asked to be covered.
Claims (8)
1. the power frequency cored integrated poured zinc-melting furnace of induction, which is characterized in that including furnace body and inductor, furnace body outside is uniformly divided
Multiple inductors are furnished with, the furnace wall of furnace body is equipped with zinc collar extension, and is connect with inductor by zinc collar extension, and the axial direction of zinc collar extension is cut
Face flare, the diameter that inboard wall of furnace body one end is located in zinc collar extension are more than diameter positioned at furnace body outer wall one end；
The furnace body includes bell, furnace wall and partition wall, is burner hearth inside furnace wall, and bell is set to above burner hearth, and partition wall is set to furnace wall
Interior, and the space inside furnace wall is divided into smelting zone and casting region, partition wall bottom is equipped with undercurrent mouth, smelting zone and casting region it
Between be connected to by undercurrent mouth；The furnace wall of smelting zone side is equipped with zinc material entrance, and the furnace wall of casting region side goes out equipped with zinc material
Mouthful；
The furnace wall includes the furnace wall bottom being connected and furnace wall top, and furnace wall bottom is to use the integrated poured formation of refractory material
Integral structure, furnace wall top is to pile up the wall body structure to be formed using brick, and the outlet of zinc material and zinc material entrance are respectively positioned on stove
On wall bottom.
2. the power frequency cored integrated poured zinc-melting furnace of induction according to claim 1, which is characterized in that the partition wall includes phase
Composition portion under composition portion and partition wall on the partition wall of connection, composition portion is to pile up the wall body structure to be formed using brick on partition wall, every
Composition portion is the integral structure formed using refractory material casting under wall, and undercurrent mouth is located under partition wall in composition portion.
3. the integrated poured zinc-melting furnace of power frequency cored induction according to claim 1, which is characterized in that the furnace wall bottom and
The junction on furnace wall top is additionally provided with nitrogen charging mouth, and nitrogen blanketing valve, the external gas supply mechanism of nitrogen blanketing valve, the end of nitrogen blanketing valve are equipped at nitrogen charging mouth
End is stretched into smelting zone.
4. the power frequency cored integrated poured zinc-melting furnace of induction according to claim 1, which is characterized in that the inductor and stove
Connection type between body connects for flange form.
5. the integrated poured zinc-melting furnace of power frequency cored induction according to claim 1, which is characterized in that the inductor includes
Iron core, primary coil, melt flow channel and support ontology, support ontology middle part are equipped with iron core, and primary coil is arranged in outer diameter, just
Melt flow channel is arranged in grade coil periphery, and melt flow channel is connected to the zinc collar extension on furnace wall, and the zinc material in melt flow channel forms two level
Coil.
6. the power frequency cored integrated poured zinc-melting furnace of induction according to claim 5, which is characterized in that the iron core is in cylinder
Shape structure, for primary coil in annular shape, melt flow channel is in half runway shape.
7. the integrated poured zinc-melting furnace of power frequency cored induction according to claim 5, which is characterized in that the melt flow channel is
The cross-section channel being opened on support ontology.
8. the integrated poured zinc-melting furnace of power frequency cored induction according to claim 5, which is characterized in that the melt flow channel is
The variable cross-section channel being opened on support ontology；Using the center line at melt flow channel both ends as line of demarcation, the entrance side of melt flow channel,
The cross-sectional width of melt flow channel is gradually reduced along melt flows direction, the outlet side of melt flow channel, the cross-sectional width of melt flow channel
It is gradually expanded along melt flows direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610635007.XA CN106288784B (en) | 2016-08-03 | 2016-08-03 | The power frequency cored integrated poured zinc-melting furnace of induction |
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|---|---|---|---|
| CN201610635007.XA CN106288784B (en) | 2016-08-03 | 2016-08-03 | The power frequency cored integrated poured zinc-melting furnace of induction |
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| CN106288784B true CN106288784B (en) | 2018-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111471876B (en) * | 2020-05-07 | 2021-02-09 | 广州湘龙高新材料科技股份有限公司 | Preparation method of zinc alloy |
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| CN2350703Y (en) * | 1998-11-23 | 1999-11-24 | 胡明 | Power frequency zinc smelting electric furnace with new structure |
| CN2641557Y (en) * | 2003-06-20 | 2004-09-15 | 孙齐良 | Submerged current type industrial frequency cored combined electric furnace |
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| CN201476548U (en) * | 2009-09-07 | 2010-05-19 | 广州市腾业锌材有限公司 | Induction furnace for zinc strip plate continuous casting and rolling process |
| CN201947485U (en) * | 2011-03-21 | 2011-08-24 | 白银有色集团股份有限公司 | Novel zinc ring of inductor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8855168B2 (en) * | 2007-04-16 | 2014-10-07 | Inductotherm Corp. | Channel electric inductor assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0077750B1 (en) * | 1981-10-20 | 1987-06-03 | Asea Ab | Channel furnace |
| JPH0741922A (en) * | 1993-08-02 | 1995-02-10 | Sumitomo Metal Ind Ltd | Zinc heater of molten zinc bath |
| CN2350703Y (en) * | 1998-11-23 | 1999-11-24 | 胡明 | Power frequency zinc smelting electric furnace with new structure |
| CN2641557Y (en) * | 2003-06-20 | 2004-09-15 | 孙齐良 | Submerged current type industrial frequency cored combined electric furnace |
| CN101509727A (en) * | 2009-03-18 | 2009-08-19 | 云南驰宏锌锗股份有限公司 | Combination metallurgical furnace for producing zinc alloy and zinc alloy combination producing method |
| CN201476548U (en) * | 2009-09-07 | 2010-05-19 | 广州市腾业锌材有限公司 | Induction furnace for zinc strip plate continuous casting and rolling process |
| CN201947485U (en) * | 2011-03-21 | 2011-08-24 | 白银有色集团股份有限公司 | Novel zinc ring of inductor |
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| CN106288784A (en) | 2017-01-04 |
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