CN213997732U - Furnace mouth sealing device of up-drawing continuous casting furnace - Google Patents
Furnace mouth sealing device of up-drawing continuous casting furnace Download PDFInfo
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- CN213997732U CN213997732U CN202022719512.7U CN202022719512U CN213997732U CN 213997732 U CN213997732 U CN 213997732U CN 202022719512 U CN202022719512 U CN 202022719512U CN 213997732 U CN213997732 U CN 213997732U
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Abstract
A melting furnace is provided with a melting bin and a heat preservation bin, the melting bin is provided with a melting bin sealing cover, the melting bin sealing cover is provided with a linkage sealing device and a melting bin sealing cover, the melting bin sealing cover is arranged on the linkage sealing device, an air curtain generating device is arranged on the side surface of the furnace mouth of the melting bin, the heat preservation bin is provided with a heat preservation bin cover plate, the heat preservation bin cover plate is provided with a crystallizer, and the crystallizer is provided with a sealing assembly; the linkage sealing device is connected with the automatic feeding mechanism, and the automatic feeding mechanism comprises an electrolytic copper stacking frame, a material grabbing sucker, a feeding overturning platform and a feeding gripping apparatus. The utility model discloses a linkage seal assembly, the sealed lid of melting storehouse and heat preservation storehouse apron synergism play sealed and heat retaining effect, and air curtain generating device erupts inert gas and reduces the air contact, has avoided the oxygen uptake of copper liquid, reduces oxygen content in the copper liquid, and reduces active metallic element's scaling loss, improves metallic element and receives the yield.
Description
Technical Field
The utility model relates to a copper processing trade technical field especially relates to an upward draw continuous casting furnace fire door sealing device.
Background
The upward continuous casting is a casting blank method in which the molten metal is sucked into a crystallizer communicated with a vacuum device from bottom to top, solidified, crystallized and formed. The up-drawing continuous casting equipment mainly has a crystallizer which is mounted on the upper portion of heat-insulating furnace and fixed in the cooler, and its lower end is immersed in molten metal by a certain depth. In addition, there are a dummy bar mechanism for pulling the ingot upward, a guide mechanism for bending the ingot laterally, and the like. When casting a blank, the metal melt enters the crystallizer under the action of negative pressure, and the crystallization front edge of the melt is slightly higher than the liquid level of the metal melt in the heat preservation furnace. The method can produce casting blanks of various metal with different section shapes, such as blanks of section bars, strip materials, bar materials and pipe materials, and is particularly suitable for producing blanks required by ultra-long high-conductivity oxygen-free copper conductors and broadband coaxial cables, and the product performance is good and the production efficiency is high.
In the prior art, the oxygen content of the up-drawing continuous casting process is about 20-60ppm, the oxygen content control difficulty is high, the influence on the comprehensive performance of the product is large due to large content fluctuation amplitude, and especially, potential safety hazards exist in the long-term service process. Oxygen has great influence on the electromechanical properties of copper and copper alloy, Cu + O2→Cu2O，Cu2The O and the copper matrix form a hard and brittle eutectic phase which is distributed in a granular form in copper crystal grains or on a crystal boundary, so that the cold deformation of the metal is uneven, local stress concentration is generated, and potential safety hazards exist in the long-term service process of the product. Therefore, the oxygen content in copper is strictly controlled, so that a deoxidizer is required to be added in the process of casting copper. The deoxidizer can adopt P, Ca, Si, Mg, Be, Li, Al, Zn, Na, Sr, B and the like, phosphorus is the most commonly used deoxidizer, and when the content of the phosphorus reaches 0.1%, the deoxidizer does not affect the mechanical property of copper but seriously reduces the conductivity of the copper.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a furnace mouth sealing device of an up-drawing continuous casting furnace.
The sealing device for the furnace mouth of the up-drawing continuous casting furnace is characterized by comprising a melting furnace, wherein the melting furnace is provided with a melting bin and a heat preservation bin, a melting bin sealing cover is arranged on the melting bin, a linkage sealing device and a melting bin sealing cover are arranged on the melting bin sealing cover, the melting bin sealing cover is arranged on the linkage sealing device, an air curtain generating device is arranged on the side surface of the furnace mouth of the melting bin, a heat preservation bin cover plate is arranged on the heat preservation bin, a crystallizer is arranged on the heat preservation bin cover plate, and a sealing assembly is arranged on the crystallizer;
the linkage sealing device is connected with the automatic feeding mechanism, and the automatic feeding mechanism comprises an electrolytic copper stacking frame, a material grabbing sucker, a feeding overturning platform and a feeding gripping apparatus.
Preferably, the linkage sealing device comprises an air cylinder and a ratchet mechanism, the ratchet mechanism is arranged on the melting bin and connected with the melting bin sealing plate, and the air cylinder is connected with the ratchet mechanism.
Preferably, the gas curtain generating device comprises an inert gas pipeline and a jet hole, the inert gas pipeline is arranged on the side face of the melting bin, and the jet hole is arranged around the bin mouth of the melting bin and connected with the inert gas pipeline.
Preferably, the linkage sealing device, the automatic feeding mechanism and the air curtain generating device are controlled by a PLC control system.
Preferably, a crystallizer hole site, a thermocouple hole site, a floating block hole site and an observation hole site are arranged on the heat-insulating bin cover plate, the sealing component of the crystallizer is embedded in the crystallizer hole site, a refractory material is arranged on the outer layer of the sealing component, and the refractory material is in close fit with the crystallizer hole.
Preferably, a thermocouple is embedded in the thermocouple hole, a floating block is embedded in the floating block hole, and sealing components are arranged on the thermocouple and the floating block.
Preferably, the sealing plate of the melting furnace and the cover plate of the holding furnace are both of double-layer design, and the middle part of the sealing plate and the cover plate of the holding furnace are made of heat insulation materials.
Preferably, one solution of the heat insulating material is asbestos.
The utility model has the advantages that:
the air tightness in the melting furnace is improved through the linkage sealing assembly, the melting bin sealing cover and the heat preservation bin cover plate, and the melting bin sealing cover and the heat preservation bin cover plate are both designed to be double-layer with heat insulation materials arranged in the middle, so that the heat preservation effect is achieved, and the loss of the furnace temperature is avoided; the gas curtain generating device enables the copper liquid in the melting furnace to reduce the contact with oxygen by discharging inert gas, thereby avoiding the oxygen absorption of the copper liquid and reducing the oxygen content in the copper liquid; the burning loss of active metal elements is reduced during the production of copper alloy products, and the yield of the metal elements is improved; the improvement of the heat preservation effect can increase the metal fluidity, improve the diffusion capacity of alloy elements and make the alloy components more uniform.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the description of embodiments of the invention, and are not intended to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a melting furnace in a top view;
labeled as: 1-heat preservation bin cover plate, 2-sealing component, 3-crystallizer, 4-feeding gripper, 5-material gripping sucker, 6-electrolytic copper stacking frame, 7-feeding overturning platform, 8-ratchet mechanism, 9-air curtain generating device, 10-melting bin sealing cover, 11-melting furnace, 12-melting bin and 13-heat preservation bin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
According to the drawings 1 to 2, the sealing device for the furnace mouth of the up-drawing continuous casting furnace comprises a melting furnace, the melting furnace is provided with a melting bin 12 and a heat preservation bin 13, the melting bin 12 is provided with a sealing cover 10 of the melting bin, the sealing cover 10 of the melting bin is provided with a linkage sealing device and a sealing cover 10 of the melting bin, the sealing cover 10 of the melting bin is arranged on the linkage sealing device, the side face of the furnace mouth of the melting bin 12 is provided with an air curtain generating device 9, the heat preservation bin 13 is provided with a heat preservation bin cover plate 1, the heat preservation bin cover plate 1 is provided with a crystallizer 3, and the crystallizer 3 is provided with a sealing component 2.
The linkage sealing device is connected with an automatic feeding mechanism, and the automatic feeding mechanism comprises an electrolytic copper stacking frame 6, a material grabbing sucker 5, a feeding overturning platform 7 and a feeding gripping apparatus 4.
The linkage sealing device comprises an air cylinder and a ratchet mechanism 8, the ratchet mechanism 8 is arranged on the melting bin 12 and is connected with a sealing plate of the melting bin 12, and the air cylinder is connected with the ratchet mechanism 8.
The gas curtain generating device 9 comprises an inert gas pipeline and a jet hole, the inert gas pipeline is arranged on the side surface of the melting bin 12, and the jet hole is arranged around the bin mouth of the melting bin 12 and is connected with the inert gas pipeline.
The working principle is as follows: and opening the heat preservation bin cover plate 1, embedding the crystallizer 3 on the heat preservation bin cover plate 1, baking for 2-3 hours, inserting the crystallizer 3 into the bottom of the copper liquid in the heat preservation bin 13 of the melting furnace 11, and resetting the heat preservation bin cover plate 1.
The copper plate is placed on an electrolytic copper stacking frame 6, and the PLC control system controls the material grabbing sucker 5 to grab a companion, and the companion is placed on a material feeding overturning platform 7 for weighing. After weighing, the feeding gripping apparatus 4 grips the copper plate, and meanwhile, the PLC control system controls the linkage sealing assembly to control the ratchet mechanism 8 to operate and drive the melting bin sealing cover 10 to move and open.
Meanwhile, the gas curtain generating device 9 discharges the inert gas in the inert gas pipeline through the jet holes, so that the melting bin is filled with the inert gas. The copper plate extends to the hearth opening to be baked for 15-20min, and the feeding gripper 4 slowly puts the copper plate into the hearth. After the feeding is finished, the PLC control system controls the linkage sealing assembly to control the ratchet mechanism 8 to operate and drive the melting bin sealing cover 10 to move and close. At this time, the air curtain generator 9 automatically stops operating.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The sealing device for the furnace mouth of the up-drawing continuous casting furnace is characterized by comprising a melting furnace, wherein the melting furnace is provided with a melting bin and a heat preservation bin, a melting bin sealing cover is arranged on the melting bin, a linkage sealing device and a melting bin sealing cover are arranged on the melting bin sealing cover, the melting bin sealing cover is arranged on the linkage sealing device, an air curtain generating device is arranged on the side surface of the furnace mouth of the melting bin, a heat preservation bin cover plate is arranged on the heat preservation bin, a crystallizer is arranged on the heat preservation bin cover plate, and a sealing assembly is arranged on the crystallizer;
the linkage sealing device is connected with the automatic feeding mechanism, and the automatic feeding mechanism comprises an electrolytic copper stacking frame, a material grabbing sucker, a feeding overturning platform and a feeding gripping apparatus.
2. The sealing device for the furnace mouth of the up-drawing continuous casting furnace according to claim 1, wherein the linkage sealing device comprises a cylinder and a ratchet mechanism, the ratchet mechanism is arranged on the melting bin and connected with the sealing plate of the melting bin, and the cylinder is connected with the ratchet mechanism.
3. The sealing device for the mouth of the up-drawing continuous casting furnace according to claim 1, wherein the gas curtain generating device comprises an inert gas pipe and an injection hole, the inert gas pipe is arranged on the side surface of the melting bin, and the injection hole is arranged around the mouth of the melting bin and connected with the inert gas pipe.
4. The sealing device for the furnace mouth of the up-drawing continuous casting furnace according to claim 1, wherein the linkage sealing device, the automatic feeding mechanism and the air curtain generating device are controlled by a PLC control system.
5. The sealing device for the furnace mouth of the up-drawing continuous casting furnace according to claim 1, wherein a crystallizer hole site, a thermocouple hole site, a floating block hole site and an observation hole site are arranged on the heat preservation cover plate, the sealing component of the crystallizer is embedded in the crystallizer hole site, the outer layer of the sealing component is provided with a refractory material, and the refractory material is in close fit with the crystallizer hole.
6. The sealing device for the mouth of the up-drawing continuous casting furnace according to claim 5, wherein a thermocouple is embedded in the thermocouple hole, a floating block is embedded in the floating block hole, and the thermocouple and the floating block are provided with sealing components.
7. The sealing device for the furnace mouth of the up-drawing continuous casting furnace according to claim 1, wherein the sealing plate of the melting furnace and the cover plate of the holding furnace are both of a double-layer design and the middle part is made of a heat insulating material.
8. The sealing device for the mouth of an up-drawing continuous casting furnace according to claim 7, wherein one scheme of the heat insulating material is asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022719512.7U CN213997732U (en) | 2020-11-20 | 2020-11-20 | Furnace mouth sealing device of up-drawing continuous casting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022719512.7U CN213997732U (en) | 2020-11-20 | 2020-11-20 | Furnace mouth sealing device of up-drawing continuous casting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213997732U true CN213997732U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022719512.7U Active CN213997732U (en) | 2020-11-20 | 2020-11-20 | Furnace mouth sealing device of up-drawing continuous casting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213997732U (en) |
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2020
- 2020-11-20 CN CN202022719512.7U patent/CN213997732U/en active Active
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