CN210399952U - Charging system on vacuum induction furnace - Google Patents
Charging system on vacuum induction furnace Download PDFInfo
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- CN210399952U CN210399952U CN201921075264.8U CN201921075264U CN210399952U CN 210399952 U CN210399952 U CN 210399952U CN 201921075264 U CN201921075264 U CN 201921075264U CN 210399952 U CN210399952 U CN 210399952U
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- feeding
- charging
- vacuum
- isolation valve
- vacuum isolation
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- 230000006698 induction Effects 0.000 title claims abstract description 26
- 238000002955 isolation Methods 0.000 claims abstract description 35
- 238000003723 Smelting Methods 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 238000010924 continuous production Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a technical scheme of an upper feeding system of a vacuum induction furnace in the smelting field, which comprises an upper feeding chamber assembly, a vacuum isolation valve device and an electrical control box; the upper charging chamber assembly comprises a charging chamber body; the vacuum isolation valve device comprises a valve body and a valve plate; a discharge hole at the bottom end of the feeding chamber body is communicated with the valve body of the isolating valve through a fully-closed flange; the charging chamber assembly is provided with a charging lifting device; the vacuum isolation valve device is provided with a valve plate opening and closing device; the upper charging chamber assembly and the vacuum isolation valve device are connected with the electrical control box. The technical effects are as follows: the charging is saved and the time for waiting for cooling is saved by continuous operation without stopping the furnace, and the continuous production increases the efficiency and the yield of the alloy.
Description
Technical Field
The utility model relates to a charging system on vacuum induction furnace for metal smelting field.
Background
Vacuum induction melting is one of typical special metallurgical means, and is widely concerned in the field of ferrous metallurgy at home and abroad. The vacuum induction furnace is a vacuum smelting complete equipment which melts metal by applying a medium-frequency induction heating principle under a vacuum condition. Is one of the important vacuum smelting devices in the metallurgy field for producing special alloy materials such as nickel-based high-temperature alloy, titanium alloy, stainless steel, ultrahigh-strength steel and the like. Meanwhile, the vacuum induction furnace is also very important and irreplaceable equipment for smelting and producing high-quality alloy steel.
At present, the mainstream furnace types manufactured in China are below 3 tons, but with the development of the technology of the Chinese war industry, the requirement of a large-tonnage vacuum induction furnace is increasingly prominent. The large vacuum induction furnace has the advantages that the smelting chamber is separated from the casting mold chamber, the furnace body is communicated with the casting mold through the horizontal diversion trench, continuous smelting can be realized, the smelting period is shortened, and the equipment utilization rate is improved. How to feed materials into the smelting chamber in the large-scale vacuum induction furnace under the condition that the smelting chamber is kept in a vacuum state is a main target of technical personnel, and the continuous feeding without stopping the furnace is finished, so that the continuous production is realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a charging system on vacuum induction furnace, it can be at continuous operation under the condition of not blowing out, saved and loaded, wait for refrigerated time, continuous production has also increased the output of alloy when increasing efficiency.
One technical scheme for achieving the above purpose is as follows: a charging system on a vacuum induction furnace comprises a charging chamber assembly, a vacuum isolation valve device and an electric control box, wherein the charging chamber assembly is arranged on the induction furnace;
the feeding chamber assembly comprises a feeding chamber body and a motor chamber, a feeding lifting device is arranged in the motor chamber, a feeding barrel connected with the feeding lifting device is arranged in the feeding chamber body, an openable feeding port for the feeding barrel to come in and go out is formed in the front end face of the feeding chamber body, and a discharging port for the feeding barrel to come in and go out is formed in the bottom of the feeding chamber body;
the vacuum isolation valve device is connected below the discharge port through a fully-closed flange, the vacuum isolation valve device is connected with a smelting chamber of the induction furnace through the discharge port, and the vacuum isolation valve device isolates the charging chamber assembly from the smelting chamber;
the feeding lifting device and the valve plate opening device are in signal connection with the electric control box.
Furthermore, the charge door of charge door body is sealed by the door plant that presss from both sides tightly through the U type, the door plant with the charge door adopts the hinge to articulate, the door plant with be equipped with the sealing washer between the charge door, be equipped with the vacuum gauge on the door plant.
Furthermore, a rotating shaft is arranged on one side of the door plate, and a swing arm device can rotate around the door plate and is connected with the rotating shaft; when the door plate is opened, the swing arm device rotates into the feeding port, and when the door plate is closed, the swing arm device rotates to the side face of the door plate.
Furthermore, the feeding lifting device comprises a hook device and a feeding driving device, the feeding barrel is hung and connected through the hook device and is connected to a driving shaft of the feeding driving device through a lifting belt and a winding drum of the hook device; and the driving shaft of the charging driving device is also connected with a telescopic sampling device.
Still further, the upper charging driving device drives the driving shaft by a hydraulic motor and a speed reducer; and the shaft end of the driving shaft is connected with an encoder, and the encoder is in signal connection with the electric control box.
Further, the valve plate is fixed on the valve body through a pressing hydraulic cylinder, and the opening and closing actions of the valve plate are driven by a rotary hydraulic cylinder arranged on the valve body.
Furthermore, a valve plate of the vacuum isolation valve device is provided with a cooling water channel which is connected with a hose, is wound around a rotating pivot of the rotary hydraulic cylinder and is connected to the outside of the vacuum isolation valve device to form a loop with external cooling water.
Still further, position detection elements are arranged on the pressing hydraulic cylinder and the rotary hydraulic cylinder and are in signal connection with the electric control box.
Still further, a silicon rubber sealing ring is arranged between the valve plate and the valve body.
Still further, the valve plate is connected with a return spring.
The technical scheme of the feeding system on the vacuum induction furnace of the utility model comprises an upper feeding chamber assembly, a vacuum isolation valve device and an electric control box; the upper charging chamber assembly comprises a charging chamber body; the vacuum isolation valve device comprises a valve body and a valve plate; a discharge hole at the bottom end of the feeding chamber body is communicated with the valve body of the isolating valve through a fully-closed flange; the charging chamber assembly is provided with a charging lifting device; the vacuum isolation valve device is provided with a valve plate opening and closing device; the upper charging chamber assembly and the vacuum isolation valve device are connected with the electrical control box. The technical effects are as follows: the charging and waiting time for cooling are saved by continuous operation without stopping the furnace, and the continuous production increases the yield of the alloy while increasing the efficiency.
Drawings
Fig. 1 is a schematic structural view of a charging system on a vacuum induction furnace of the present invention;
FIG. 2 is a side view of an upper charging chamber assembly of an upper charging system of a vacuum induction furnace according to the present invention;
FIG. 3 is a front view of an upper charging chamber assembly of an upper charging system of a vacuum induction furnace according to the present invention;
fig. 4 is a top view of the valve structure of the vacuum isolation valve device of the charging system of the vacuum induction furnace of the present invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by way of specific embodiments with reference to the accompanying drawings:
referring to fig. 1, the charging system of the present invention includes an upper charging chamber assembly 1, a vacuum isolation valve device 2 and an electrical control box. Wherein, the upper charging chamber assembly 1 is communicated with the vacuum isolation valve device 2 through a fully sealed flange 3. The discharge hole of the vacuum isolation valve device 2 is connected to the smelting cavity 4 of the vacuum induction furnace.
Referring to fig. 2 and 3, the upper loading chamber assembly 1 includes a loading chamber body 91 and a motor chamber 92.
Be equipped with reinforced hoisting device in the motor room 92, reinforced hoisting device comprises hook assembly 13 and reinforced drive arrangement 10, hook assembly 13's lifting hook passes through lifting belt and reel and is connected with reinforced drive arrangement 10's drive shaft, reinforced drive arrangement 10 is driven the drive shaft by hydraulic motor and reduction gear, the axle head and an encoder 15 of drive shaft link to each other, encoder 15 links to each other with electrical control box signal to control rotational speed and stroke, the rope volume is put in accurate control. The drive shaft of the charging drive device 10 is also connected with a retractable sampling device 19 driven by the charging drive device 10, and when the sampling device 19 is lowered, the material in the lowered smelting chamber can be sampled. A thermocouple 18 is also provided in the motor chamber to monitor the temperature within the system.
The charging chamber body 91 is internally provided with a charging barrel 14 connected with a charging lifting device, and the charging barrel 14 can move up and down under the driving of the lifting hook device 13. The preceding terminal surface of charging chamber body is equipped with the confession that can open the charge door that the charging bucket came in and go out, and the charge door seals through door plant 11, and door plant 11 adopts the hinge to articulate with the charge door, is equipped with the sealing washer between door plant 11 and the charge door. The four corners of the door panel 11 are locked by U-shaped clips 16 to ensure the overall sealing performance of the charging chamber body 91. The door panel 11 is provided with a vacuum gauge. A rotating shaft is arranged on one side of the door plate 11, and a swing arm device 12 can rotate around the door plate 11 and is connected with the rotating shaft; when the door plate 11 is opened, the swing arm device 12 rotates into the charging port, and when the door plate 11 is closed, the swing arm device 12 rotates to the side surface of the door plate to reset. The bottom of the charging chamber body 91 is provided with a discharge hole for the charging barrel 14 to go in and out, and the flange 3 is connected with the discharge hole.
When the charging operation is performed, it is confirmed that the vacuum isolation valve device 2 is in the closed state, the door panel 11 is opened, the material to be charged is charged into the charging bucket 14, and the charging bucket 14 is placed on the tray of the swing arm device 12 (position 141). The handle of the swing arm device 12 is pushed to screw the tray into the feeding chamber body 9. The lifting driving device 10 is started, the hook device 13 is controlled to descend to a proper position, and the charging barrel 14 is hooked by the hook. The lifting driving device 10 is controlled to lift the charging barrel 14, the handle of the swing arm device 12 is pushed, and the tray is screwed out of the charging chamber body 9. The loading chamber door 11 is closed and the door panel 11 is locked with the clevis 16. After the door 11 of the charging chamber is locked, the vacuum pump is started, and the cavity inside the body 9 of the charging chamber is vacuumized to the designated range according to the vacuum meter 17.
The vacuum isolation valve device 2 is a vacuum buffer chamber of the system, the top of the vacuum isolation valve device is assembled with the upper charging chamber 1 through a flange 3, the bottom of the vacuum isolation valve device is provided with a discharge port which is controlled to be opened and closed through a valve structure, and the discharge port is connected to a smelting cavity 4 of the vacuum induction furnace. The vacuum isolation valve device 2 is provided with a vacuum port 26.
Please refer to fig. 4. The valve structure of the vacuum isolation valve device 2 includes a valve body 20, a rotary hydraulic cylinder 21, a hold-down hydraulic cylinder 22, a valve plate 23, a valve plate swing arm 24, a rotary shaft 25, and a cooling water path 27.
The valve body 20 is composed of a left part and a right part, the middle parts are connected by a flange, and the rubber ring is sealed. Valve plate 23 is connected to valve plate swing arm 24 through reset spring, and valve plate swing arm 24 uses the parallel key to be fixed with rotation axis 25, and rotation axis 25 passes through rotary hydraulic cylinder 21 drive, and rotary hydraulic cylinder 21 is connected with the electrical control box. The valve plate 23 has 2 positions of opening and closing. Two sides of the valve plate 23 are respectively provided with a pressing hydraulic cylinder 22 with a position detection element, and the position detection elements are connected with an electric control box.
When the inner cavity of the feeding chamber body 9 is in a non-vacuum state, the valve plate 23 is tightly pressed on the sealing ring of the discharge hole at the closing position of the valve body 20 by the pressing hydraulic cylinder 22, and the vacuum environment in the smelting cavity is kept. When the materials to be added are loaded, the door plate 11 is closed, the U-shaped clamp 16 is locked, the vacuum pump is started, the cavity in the feeding chamber body 9 is pumped to a required vacuum state through the vacuum pumping port 26, and at the moment, the upper cavity and the lower cavity of the valve plate 23 are both in a vacuum environment. Then, the electric control box controls the pressing hydraulic cylinder 22 to retract to the release position, and the valve plate 23 is lifted up and separated from the discharge port sealing ring under the action of the spring force. At this time, the rotary hydraulic cylinder 21 acts to rotate the valve plate 23 to the open position (dotted line in the figure). And (4) loosening the turning plate at the bottom of the charging barrel 14 to finish the charging action. Finally, the valve plate 23 is closed again under the action of the rotary hydraulic cylinder 21 and the pressing hydraulic cylinder 22. Since the valve plate 23 covers the discharge port of the material entering the melting chamber cavity, the temperature at this position is affected by the melting chamber cavity, and therefore, a cooling water channel 27 is arranged on the valve plate 23 and is communicated with a water path bypassing the rotating shaft 25, and then forms a loop with external cooling water to cool the driving structure.
The utility model discloses an among the charging system on vacuum induction furnace, through smelting the reinforced mechanism that cavity top set up and have special isolating valve for smelt the room and keep vacuum state in succession, through the continuity of operation under the condition of not blowing out promptly, saved and loaded, wait for refrigerated time. The smelting period is shortened, and the utilization rate of equipment is improved. Continuous production increases the yield of alloy while increasing efficiency. The upper feeding chamber is mainly used for feeding spherical and blocky high-density raw materials, and the maximum charging amount of each time can reach 5T; the temperature measurement sampling and alloy feeding can be carried out in the device, the operation is stable, the phenomenon of material blockage is avoided, and the production requirement without shutdown in 24 hours can be met.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a charging system on vacuum induction furnace, is including setting up charging chamber assembly, vacuum isolation valve device and the electrical control box on induction furnace, its characterized in that:
the feeding chamber assembly comprises a feeding chamber body and a motor chamber, a feeding lifting device is arranged in the motor chamber, a feeding barrel connected with the feeding lifting device is arranged in the feeding chamber body, an openable feeding port for the feeding barrel to come in and go out is formed in the front end face of the feeding chamber body, and a discharging port for the feeding barrel to come in and go out is formed in the bottom of the feeding chamber body;
the vacuum isolation valve device is connected below the discharge port through a fully-closed flange, the vacuum isolation valve device is connected with a smelting chamber of the induction furnace through the discharge port, and the vacuum isolation valve device isolates the charging chamber assembly from the smelting chamber;
the charging lifting device and the opening device of the vacuum isolation valve device are in signal connection with the electric control box.
2. The charging system of claim 1, wherein: the feed inlet of feed chamber body is sealed by the door plant that presss from both sides tightly through the U type, the door plant with the feed inlet adopts the hinge to articulate, the door plant with be equipped with the sealing washer between the feed inlet, be equipped with the vacuum gauge on the door plant.
3. The charging system of claim 2, wherein: one side of the door plate is provided with a rotating shaft, and a swing arm device is rotatably connected with the rotating shaft around the door plate; when the door plate is opened, the swing arm device rotates into the feeding port, and when the door plate is closed, the swing arm device rotates to the side face of the door plate.
4. The charging system of claim 1, wherein: the feeding lifting device comprises a hook device and a feeding driving device, the feeding barrel is hung and connected through the hook device and is connected to a driving shaft of the feeding driving device through a lifting belt and a winding drum of the hook device; and the driving shaft of the charging driving device is also connected with a telescopic sampling device.
5. The charging system of claim 4, wherein: the upper feeding driving device drives the driving shaft by a hydraulic motor and a speed reducer; and the shaft end of the driving shaft is connected with an encoder, and the encoder is in signal connection with the electric control box.
6. The charging system of claim 1, wherein: the vacuum isolation valve device is characterized in that a valve body and a valve plate for opening and closing the discharge port are arranged at the bottom of the vacuum isolation valve device, a valve plate opening and closing device is arranged on the vacuum isolation valve device, and a vacuumizing port is formed in a cavity of the vacuum isolation valve device.
7. The charging system of claim 6, wherein: the valve plate is fixed on the valve body through a pressing hydraulic cylinder, and the opening and closing actions of the valve plate are driven by a rotary hydraulic cylinder arranged on the valve body.
8. The charging system of claim 7, wherein: and a valve plate of the vacuum isolation valve device is provided with a cooling water channel which is connected with the valve plate through a hose, is wound around a rotating pivot of the rotary hydraulic cylinder and is connected to the outside of the vacuum isolation valve device to form a loop with external cooling water.
9. The charging system of claim 7, wherein: and the pressing hydraulic cylinder and the rotary hydraulic cylinder are provided with position detection elements, and the position detection elements are in signal connection with the electric control box.
10. The charging system of claim 6, wherein: and a silicon rubber sealing ring is arranged between the valve plate and the valve body, and the valve plate is connected with a return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075264.8U CN210399952U (en) | 2019-07-10 | 2019-07-10 | Charging system on vacuum induction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075264.8U CN210399952U (en) | 2019-07-10 | 2019-07-10 | Charging system on vacuum induction furnace |
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| Publication Number | Publication Date |
|---|---|
| CN210399952U true CN210399952U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921075264.8U Active CN210399952U (en) | 2019-07-10 | 2019-07-10 | Charging system on vacuum induction furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243179A (en) * | 2019-07-10 | 2019-09-17 | 无锡应达工业有限公司 | Charging system on a kind of vaccum sensitive stove |
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2019
- 2019-07-10 CN CN201921075264.8U patent/CN210399952U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243179A (en) * | 2019-07-10 | 2019-09-17 | 无锡应达工业有限公司 | Charging system on a kind of vaccum sensitive stove |
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