CN112964060A - Low-energy-consumption vacuum induction master alloy smelting furnace - Google Patents
Low-energy-consumption vacuum induction master alloy smelting furnace Download PDFInfo
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- CN112964060A CN112964060A CN202110358275.2A CN202110358275A CN112964060A CN 112964060 A CN112964060 A CN 112964060A CN 202110358275 A CN202110358275 A CN 202110358275A CN 112964060 A CN112964060 A CN 112964060A
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- 230000006698 induction Effects 0.000 title claims abstract description 60
- 239000000956 alloy Substances 0.000 title claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 19
- 238000003723 Smelting Methods 0.000 title claims abstract description 17
- 238000005265 energy consumption Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000003028 elevating effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000010309 melting process Methods 0.000 abstract description 3
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
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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
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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
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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
- 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
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
- F27B2014/045—Vacuum
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- 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)
- Furnace Details (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention relates to the technical field of metallurgy, in particular to a low-energy-consumption vacuum induction master alloy smelting furnace which comprises a foundation, wherein a working platform is fixedly arranged on the foundation, a furnace body base support is fixedly arranged on the foundation, a furnace body is connected onto the furnace body base support, a furnace body sintering layer is arranged in the furnace body, a furnace opening sealing plate is fixedly arranged on the furnace body, a diversion trench is fixedly arranged on the foundation, a travelling vehicle is movably connected onto the working platform, a furnace cover lifting mechanism is arranged on the travelling vehicle, a furnace cover is fixedly connected onto the furnace cover lifting mechanism, and an observation opening is formed in the furnace cover; the induction coil designed by the invention is positioned outside the vacuum chamber, glow discharge and turn-to-turn short circuit can not be generated under the normal working condition, the voltage of the induction coil of the vacuum furnace body is increased while the vacuum melting process is ensured, the medium-frequency induction voltage can reach more than 1500-3000V, and the current of the induction coil and the loss of the induction coil are reduced under the same power.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a low-energy-consumption vacuum induction master alloy smelting furnace.
Background
The vacuum induction smelting furnace is a smelting mode for heating furnace charge by utilizing eddy current generated in a metal conductor by electromagnetic induction under the vacuum condition, and has the advantages of high smelting speed, uniform alloy stirring, uniform temperature, capability of absorbing volatile elements, accurate control of alloy components and the like. Therefore, the vacuum induction melting furnace has been developed into one of the main equipments for producing special alloys such as special steel, precision alloys, etc.
Because the induction coil of the vacuum furnace is easy to generate glow discharge under the vacuum condition, the higher the voltage of the induction coil is, the higher the intensity of the glow discharge is. Experience proves that the input intermediate frequency voltage of the naked induction coil cannot exceed 250V, and the intermediate frequency voltage can be increased to 500-750V at most after the insulation of the induction coil is improved. The medium-frequency voltage of the induction coil of the vacuum furnace is lower, and the medium-frequency current is large, so the loss of the induction coil is large and accounts for more than 30 percent of the whole input power, and therefore, the energy conservation and consumption reduction of the vacuum induction furnace are important to reduce the loss of the induction coil.
The conventional vacuum induction furnace needs to seal the whole furnace body into a closed tank body, is large in size, needs to be filled with water and sealed for the actual shell and the furnace cover, and is high in manufacturing cost. Meanwhile, the power supply configured for the vacuum induction furnace at present is mainly a silicon controlled parallel resonant medium-frequency induction power supply, and when low-power heat preservation is needed in vacuum melting, the rectification angle of the medium-frequency power supply needs to be increased, the power factor of a power grid side is reduced, and the reactive loss is large. In view of this, we propose a low energy consumption vacuum induction master alloy melting furnace.
Disclosure of Invention
The invention aims to provide a low-energy-consumption vacuum induction master alloy smelting furnace to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a female alloy smelting furnace of low energy consumption vacuum induction, includes the ground, fixed mounting has work platform on the ground, and fixed mounting has furnace body base support on the ground, be connected with the furnace body on the furnace body base support, and be provided with the furnace body sintering layer in the furnace body, fixed mounting has fire door sealing plate on the furnace body, and fixed mounting has the guiding gutter on the ground, swing joint has the carriage on the work platform, and installs bell elevating system on the carriage, fixedly connected with bell on the bell elevating system, be provided with the viewing aperture on the bell, and be provided with the vacuum cavity in the bell, fixedly connected with vacuum pipe on the bell, and vacuum pipe passes through interface fixedly connected with exhaust tube, exhaust tube and outside vacuum pump connection.
Preferably, work platform installs the upper surface at the ground, and work platform mainly includes driving track and furnace body installation cavity, furnace body base support mounting is in the bottom of ground, and the furnace body adopts formula of sinking mounting structure.
Preferably, the furnace body sintering layer is connected with the furnace opening sealing plate in a sealing mode, a vacuum furnace induction coil is arranged between the furnace body and the furnace body sintering layer, the diversion trench is arranged on the side face of the furnace body, and the diversion trench is of a ship-shaped structure.
Preferably, the walking vehicle is installed on the travelling rail of the working platform, the furnace cover lifting mechanism comprises a lifting wheel, the lifting wheel is of a chain wheel structure and is installed on a support of the walking vehicle, the lifting wheel is driven by a motor, a chain is installed on the lifting wheel, and the end part of the chain is connected with the end part of the furnace cover.
Preferably, the top surface of the furnace cover is provided with two viewing ports, a transparent plate is arranged on each viewing port, the furnace cover is connected to the walking vehicle in a single-side rotating mode, a sealing washer is arranged at the bottom of the furnace cover, and the vacuum cavity is formed by combining the furnace cover, a furnace body sintering layer and a furnace opening sealing plate.
Preferably, the vacuum pipeline is provided with a hose structure and communicated with the vacuum cavity, the vacuum pipeline is installed on the walking vehicle, the interface adopts a connecting flange, and the exhaust pipe is buried in the foundation.
Compared with the prior art, the invention has the beneficial effects that:
1. the conventional vacuum furnace generates molten iron splashing during vacuumizing, evaporated metal powder generated in the smelting process can sink and float on the surface of the induction coil, glow discharge is more easily generated under the vacuum condition, and turn-to-turn ignition or short circuit of the induction coil is caused;
2. the voltage of the induction coil of the vacuum furnace body is increased while the vacuum melting process is ensured, the medium-frequency induction voltage can reach more than 1500-3000V, and the current of the induction coil and the loss of the induction coil are reduced under the same power.
3. The series resonance type medium-frequency induction power supply is configured, the power factor is high, and the power factor reaches more than 0.9 under any working power condition;
4. the manufacturing cost is low, and the whole furnace body occupies small space as long as the furnace mouth is sealed by the furnace cover.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the structure of the furnace body and the furnace cover trolley of the present invention;
FIG. 3 is a schematic cross-sectional view of the AC-AC surface of FIG. 2;
FIG. 4 is a side view of the furnace body and furnace lid cart structure;
FIG. 5 is a schematic view of the external structure of the present invention;
fig. 6 is a schematic view of a walking structure of a furnace cover flip.
In the figure: the device comprises a foundation 1, a working platform 2, a furnace body base support 3, a furnace body 4, a furnace body sintering layer 5, a furnace mouth sealing plate 6, a diversion trench 7, a walking vehicle 8, a lifting wheel 9, a chain 10, a furnace cover 11, an observation port 12, a vacuum cavity 13, a vacuum pipeline 14, a connector 15, an exhaust tube 16 and a vacuum pump 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, in order to reduce the loss of the induction coil of the vacuum induction melting furnace under the condition of satisfying the vacuum melting process, the invention provides a low-energy vacuum induction master alloy melting furnace. The furnace body structure and the power supply configuration have low loss, high power factor and low manufacturing cost. The main technical scheme is as follows: the utility model provides a female alloy smelting furnace of low energy consumption vacuum induction, includes ground 1, fixed mounting has work platform 2 on the ground 1, and fixed mounting has furnace body base support 3 on the ground 1, be connected with furnace body 4 on the furnace body base support 3, and be provided with furnace body sinter bed 5 in the furnace body 4, fixed mounting has fire door sealing plate 6 on the furnace body 4, and fixed mounting has guiding gutter 7 on the ground 1, swing joint has carriage 8 on the work platform 2, and installs bell elevating system on the carriage 8, fixedly connected with bell 11 on the bell elevating system, be provided with viewing aperture 12 on the bell 11, and be provided with vacuum cavity 13 in the bell 11, fixedly connected with vacuum pipe 14 on the bell 11, and vacuum pipe 14 passes through interface 15 fixedly connected with exhaust tube 16, and exhaust tube 16 is connected with outside vacuum pump 17. The induction coil is arranged outside the vacuum cavity through the arrangement, the possibility of glow discharge generated by the induction coil under the vacuum condition is eliminated, the voltage of the induction coil can be increased from 250V to 1500-3000V under the same power condition, the current of the induction coil is reduced, and the loss of the induction coil is reduced.
The specific embodiment is as follows:
1. only a furnace cover sealing mode is adopted at a furnace opening, a vacuum pipeline 14, an observation opening 12 and the like are arranged at proper positions of a furnace cover 11, and a vacuum cavity body 13 is formed through the furnace cover 11, the furnace opening sealing plate 6 and a furnace body sintering layer 5 in a sealed mode. Because the induction coil of the vacuum furnace is positioned outside the vacuum cavity 13, the problem of glow discharge generated under the vacuum condition does not exist, the voltage of the induction coil can be increased to more than 1500-3000V, and under the condition of the same power, the current of the induction coil is reduced, the loss of the induction coil is reduced, and the energy-saving effect is achieved;
2. a chain type tilting mechanism is adopted to lift the furnace cover 11, the walking vehicle 8 is utilized to drive the furnace cover 11 to move back and forth, the furnace cover 11 is a movable part, and the furnace body 4 is a fixed part;
3. the position of the walking vehicle 8 is divided into a vacuum station and a non-vacuum station, when the vacuumizing process is needed, the walking vehicle 8 is driven to the vacuumizing station, the walking vehicle 8 moves the vacuum pipeline 14, the connector 15 is connected with the exhaust pipe 16, the furnace cover 11 is lowered, the exhaust valve is closed, and vacuumizing is carried out. After the vacuumizing process is finished, opening a deflation valve to break vacuum, lifting a furnace cover 11, and disconnecting a connector 15 of a vacuum pipeline 14 of the walking vehicle 8 from a suction pipe 16;
4. the power supply configuration adopts a parallel resonant medium-frequency induction power supply or a series resonant medium-frequency induction power supply to improve the medium-frequency voltage of the induction coil of the furnace body, reduce the current of the induction coil under the condition of the same power and reduce the loss of the induction coil;
5. in order to improve the power factor, a series resonance type intermediate frequency induction power supply can be configured, and the power factor is ensured to be above 0.9 no matter what working state the vacuum induction furnace is in.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a master alloy smelting furnace of low energy consumption vacuum induction, includes ground (1), its characterized in that: the furnace body comprises a foundation (1), a working platform (2) is fixedly mounted on the foundation (1), a furnace body base support (3) is fixedly mounted on the foundation (1), a furnace body (4) is connected onto the furnace body base support (3), a furnace body sintering layer (5) is arranged in the furnace body (4), a furnace opening sealing plate (6) is fixedly mounted on the furnace body (4), a diversion trench (7) is fixedly mounted on the foundation (1), a walking vehicle (8) is movably connected onto the working platform (2), a furnace cover lifting mechanism is mounted on the walking vehicle (8), a furnace cover (11) is fixedly connected onto the furnace cover lifting mechanism, an observation opening (12) is arranged on the furnace cover (11), a vacuum cavity (13) is arranged in the furnace cover (11), a vacuum pipeline (14) is fixedly connected onto the furnace cover (11), and an exhaust pipe (16) is fixedly connected onto the vacuum pipeline (14) through an interface (15), the air suction pipe (16) is connected with an external vacuum pump (17).
2. A low energy consumption vacuum induction master alloy smelting furnace according to claim 1, characterized in that: work platform (2) are installed at the upper surface of ground (1), and work platform (2) mainly include driving rail and furnace body installation cavity, furnace body base support (3) are installed in the bottom of ground (1), and furnace body (4) adopt formula mounting structure that sinks.
3. A low energy consumption vacuum induction master alloy smelting furnace according to claim 1, characterized in that: the furnace body sintering layer (5) is connected with the furnace opening sealing plate (6) in a sealing mode, a vacuum furnace induction coil is arranged between the furnace body (4) and the furnace body sintering layer (5), the diversion trench (7) is arranged on the side face of the furnace body (4), and the diversion trench (7) is of a ship-shaped structure.
4. A low energy consumption vacuum induction master alloy smelting furnace according to claim 1, characterized in that: the utility model discloses a furnace cover lifting mechanism, including work platform (2), running vehicle (8), and bell elevating system, just bell elevating system includes lifting wheel (9), lifting wheel (9) are the sprocket structure, install on the support of running vehicle (8), and lifting wheel (9) pass through motor drive, install chain (10) on lifting wheel (9), and the end connection of chain (10) is at the tip of bell (11).
5. A low energy consumption vacuum induction master alloy smelting furnace according to claim 1, characterized in that: the furnace cover (11) is characterized in that two observation ports (12) are formed in the top surface of the furnace cover (11), a transparent plate is arranged on each observation port (12), the furnace cover (11) is connected to the walking vehicle (8) in a single-side rotating mode, a sealing washer is arranged at the bottom of the furnace cover (11), and the vacuum cavity (13) is formed by combining the furnace cover (11), the furnace body sintering layer (5) and the furnace port sealing plate (6).
6. A low energy consumption vacuum induction master alloy smelting furnace according to claim 1, characterized in that: the vacuum pipeline (14) is provided with a hose structure and communicated with the vacuum cavity (13), the vacuum pipeline (14) is installed on the walking vehicle (8), the connector (15) adopts a connecting flange, and the exhaust pipe (16) is buried in the foundation (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110358275.2A CN112964060A (en) | 2021-04-01 | 2021-04-01 | Low-energy-consumption vacuum induction master alloy smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110358275.2A CN112964060A (en) | 2021-04-01 | 2021-04-01 | Low-energy-consumption vacuum induction master alloy smelting furnace |
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| Publication Number | Publication Date |
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| CN112964060A true CN112964060A (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110358275.2A Pending CN112964060A (en) | 2021-04-01 | 2021-04-01 | Low-energy-consumption vacuum induction master alloy smelting furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234644A (en) * | 2021-12-24 | 2022-03-25 | 石棉蓝翔冶金材料有限公司 | Device and method for extracting vanadium through submerged arc furnace |
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| CN106895701A (en) * | 2017-04-28 | 2017-06-27 | 云南昆钢重型装备制造集团有限公司 | A kind of bell automatic closing device suitable for vacuum melting furnace |
| CN108097939A (en) * | 2016-11-24 | 2018-06-01 | 重庆金凯特殊钢制品有限公司 | There is the device of elevating translational bell |
| CN110207492A (en) * | 2019-07-05 | 2019-09-06 | 无锡刚正精密吸铸有限公司 | Convenient type vacuum melting furnace |
| CN210945671U (en) * | 2019-11-01 | 2020-07-07 | 山东电航电力设备科技有限公司 | Vacuum induction furnace for melting and purifying molten steel |
| CN212179563U (en) * | 2020-06-02 | 2020-12-18 | 江苏立新合金实业总公司 | Vacuum induction smelting furnace for producing stainless steel welding rods |
-
2021
- 2021-04-01 CN CN202110358275.2A patent/CN112964060A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097939A (en) * | 2016-11-24 | 2018-06-01 | 重庆金凯特殊钢制品有限公司 | There is the device of elevating translational bell |
| CN106895701A (en) * | 2017-04-28 | 2017-06-27 | 云南昆钢重型装备制造集团有限公司 | A kind of bell automatic closing device suitable for vacuum melting furnace |
| CN110207492A (en) * | 2019-07-05 | 2019-09-06 | 无锡刚正精密吸铸有限公司 | Convenient type vacuum melting furnace |
| CN210945671U (en) * | 2019-11-01 | 2020-07-07 | 山东电航电力设备科技有限公司 | Vacuum induction furnace for melting and purifying molten steel |
| CN212179563U (en) * | 2020-06-02 | 2020-12-18 | 江苏立新合金实业总公司 | Vacuum induction smelting furnace for producing stainless steel welding rods |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234644A (en) * | 2021-12-24 | 2022-03-25 | 石棉蓝翔冶金材料有限公司 | Device and method for extracting vanadium through submerged arc furnace |
| CN114234644B (en) * | 2021-12-24 | 2024-05-14 | 石棉蓝翔冶金材料有限公司 | Device for refining vanadium through submerged arc furnace |
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Application publication date: 20210615 |
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