CN107576201B - Horizontal continuous casting double-connection melting channel with uneasy breaking channel - Google Patents
Horizontal continuous casting double-connection melting channel with uneasy breaking channel Download PDFInfo
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- CN107576201B CN107576201B CN201710820728.2A CN201710820728A CN107576201B CN 107576201 B CN107576201 B CN 107576201B CN 201710820728 A CN201710820728 A CN 201710820728A CN 107576201 B CN107576201 B CN 107576201B
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- 230000008018 melting Effects 0.000 title claims abstract description 58
- 238000002844 melting Methods 0.000 title claims abstract description 58
- 238000009749 continuous casting Methods 0.000 title claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 241001391944 Commicarpus scandens Species 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a horizontal continuous casting double-connected melting ditch which is not easy to break, wherein the double-connected melting ditch consists of a top, a bottom, a middle connecting part and melting reinforcing parts at two sides, the two melting ditches are bilaterally symmetrical to form a B type, the outer wall of the top of the double-connected melting ditch is of a plane structure, the inner walls of the tops of the two melting ditches are of V type, the horizontal inclined angle is 6 degrees, the bottom is of an arc structure and is provided with an inner ring and an outer ring, the tangent point of the inner wall of the melting reinforcing part and the inner ring is horizontally upwards deviated by 20 degrees, the tangent point of the outer wall and the outer ring is horizontally upwards deviated by 14 degrees, and the tangent point of the inner wall of the middle connecting part and the inner ring is horizontally upwards deviated by 15 degrees.
Description
Technical Field
The invention relates to a melting channel, in particular to a horizontal continuous casting double-connection melting channel which is not easy to break.
Background
In the current nonferrous industry, the cored-channel induction furnace is increasingly applied and widely applied to smelting furnaces and holding furnaces for smelting copper and copper alloys. The method has the advantages of quick heating, high efficiency, less metal burning loss, environmental protection, no pollution, good site environment and the like.
One of them is the horizontal continuous casting induction furnace, which is used for smelting nonferrous metal alloy by utilizing the principles of electromagnetic induction and current heating effect. The basic working principle is to use a power frequency power supply and a melting channel formed by melt as a secondary coil. When the alternating current is introduced into the induction coil during operation, an alternating magnetic field is generated in the iron core. The induced current is concentrated in the melt of the secondary coil, and the current formed by the melting channel heats the melting channel, so that the melting channel is melted first, and then electrolytic copper added in the furnace body is melted.
However, the broken ditch time can appear in the use, when the molten ditch breaks, the induction molten ditch can not form a closed loop, and can not produce induction current, and finally, the dead furnace accident is directly caused, and the whole furnace body can be scrapped after the dead furnace appears, so that the production cost is increased. Through researches, the occurrence of the accident of breaking the melting channel can be found in the melting channel during the starting and heating of a new furnace and the normal production process.
Disclosure of Invention
The invention aims to: in order to solve the defects in the prior art, the invention provides the horizontal continuous casting double-connected melting channel which is not easy to break, the risk of breaking the channel can be reduced by improving the structure of the melting channel, and the existing shape can be maintained after the melting channel is stopped, so that repeated utilization is realized for a plurality of times, and the service life of a furnace body is prolonged.
The invention aims at realizing the technical scheme that the horizontal continuous casting double-connection-type melting ditch which is not easy to break is formed by a top, a bottom, a middle connecting part and two fusing reinforcing parts at two sides, wherein the two melting ditches are symmetrically formed into a B type, the outer wall of the top of the double-connection-type melting ditch is of a plane structure, the inner walls of the tops of the two melting ditches are of V type, the horizontal inclined angle is 6 degrees, the bottom is of an arc structure and is provided with an inner ring and an outer ring, the tangent point of the inner wall of the fusing reinforcing part and the inner ring is positioned at the position of 20 degrees in the horizontal upward direction of an arc, the tangent point of the outer wall and the outer ring is positioned at the position of 14 degrees in the horizontal upward direction of the arc, and the tangent point of the inner wall of the middle connecting part and the inner ring is positioned at the horizontal upward direction of the arc.
Preferably, the arc transition is formed between the top inner wall and the inner wall of the fusing reinforcement part, the arc radius is 40mm, the arc transition is formed between the top inner wall and the inner wall of the middle connecting part, and the arc radius is 50mm.
Preferably, the top outer wall is 914mm in size.
Preferably, the inner ring radius of the bottom is 227.5mm and the outer ring radius is 262.5mm.
The horizontal continuous casting double-connected melting channel with the difficult breaking channel disclosed by the invention has the advantages that in order to ensure that the melting channel can be repeatedly used, the melting channel formed after solidification of copper water in the furnace shutdown process is required to keep better consistency with the new melting channel shape, so that the inner wall of the upper part adopts an approximately horizontal V-shaped design, the copper water is convenient to form reflux in the middle during stirring, the upper part of the copper water is in a horizontal state under the action of gravity in the furnace shutdown process, the section change of the annular melting channel is ensured to be smaller, the sectional resistance change is also smaller, and better synchronism is maintained in the process of electrifying and melting the furnace again.
According to long-term experiments, the problem that the places where the broken ditch is easy to appear are positioned at the side edges of the upper left corner and the upper right corner of the molten ditch after the molten ditch is opened for the first time or used for more than half a year is solved, the area in the actual structure is thickened and transited, the tangential points of the inner ring and the outer ring at the bottom are adjusted, and the tangential points of the inner ring and the outer ring are not positioned at the same position, so that the thickness of the area is increased.
In addition, in order to ensure the quality of the surface of the strip blank, the melting grooves on two sides are in symmetrical structures, and the insides of the melting grooves on one side are also symmetrical relatively, and although the inner wall of the top in the structure is inclined by 6 degrees, the force deviation on two sides during actual stirring is in a specified range, so that the normal quality requirement is not influenced.
Compared with the prior art, the horizontal continuous casting double-connected melting channel with the difficult broken channel disclosed by the invention has the advantages that the structure is improved, so that the melting channel maintains the existing shape after the furnace is stopped, the synchronism of the melting channel during the process of electrifying again is ensured, the repeated use can be realized for a plurality of times, the service life of a furnace body is further prolonged, and the risk of broken channels is reduced by improving the structures of the easily broken areas on two sides, so that the production cost is further reduced.
Drawings
FIG. 1 is a schematic view of the structural dimensions of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in FIG. 1, the horizontal continuous casting double-connected melting channel with the difficult breaking channel disclosed by the invention is formed by connecting two melting channels 1 into a whole in a bilateral symmetry way, and the whole is in a B shape, and each melting channel is provided with a top 2, a bottom 3, a middle connecting part 4 and a fusing reinforcing part 5.
Wherein the outer wall 2b of the top 2 is a planar structure, the size of the outer wall is 914mm, the inner wall 2a is an inclined structure, the top inner walls of the two melting grooves form an approximately horizontal V shape, the horizontal inclined angle is 6 degrees, the bottom 3 is an arc structure and is provided with an inner ring 3a and an outer ring 3b, the radius of the inner ring is 227.5mm, the radius of the outer ring is 262.5mm, the tangent point E between the inner wall 5a and the inner ring of the fusing reinforcement part 5 is positioned at an arc horizontal upward offset 20 degrees, the tangent point F between the outer wall 5b and the outer ring is positioned at an arc horizontal upward offset 14 degrees, and the tangent point G between the inner wall 4a of the intermediate connecting part 4 and the inner ring is positioned at an arc horizontal upward offset 15 degrees.
The arc transition 6a is arranged between the top inner wall 2a and the inner wall 5a of the fusing reinforcement part, the arc radius of the arc transition 6a is 40mm, the arc transition 6b is arranged between the top inner wall 2a and the inner wall 4a of the middle connecting part, and the arc radius of the arc transition 6b is 50mm.
The horizontal continuous casting double-connected melting channel with the difficult breaking channel disclosed by the invention has the advantages that in order to ensure that the melting channel can be repeatedly used, the melting channel formed after solidification of copper water in the furnace shutdown process is required to keep better consistency with the new melting channel shape, so that the inner wall of the upper part adopts an approximately horizontal V-shaped design, the copper water is convenient to form reflux in the middle during stirring, the upper part of the copper water is in a horizontal state under the action of gravity in the furnace shutdown process, the section change of the annular melting channel is ensured to be smaller, the sectional resistance change is also smaller, and better synchronism is maintained in the process of electrifying and melting the furnace again.
According to long-term experiments, the problem that the places where the broken ditch is easy to appear are positioned at the side edges of the upper left corner and the upper right corner of the molten ditch after the molten ditch is opened for the first time or used for more than half a year is solved, the area in the actual structure is thickened and transited, the tangential points of the inner ring and the outer ring at the bottom are adjusted, and the tangential points of the inner ring and the outer ring are not positioned at the same position, so that the thickness of the area is increased.
In addition, in order to ensure the quality of the surface of the strip blank, the melting grooves on two sides are in symmetrical structures, and the insides of the melting grooves on one side are also symmetrical relatively, and although the inner wall of the top in the structure is inclined by 6 degrees, the force deviation on two sides during actual stirring is in a specified range, so that the normal quality requirement is not influenced.
While the foregoing has been disclosed in the specification and drawings, it will be apparent to those skilled in the art that various substitutions and modifications may be made without departing from the spirit of the invention, and it is intended that the scope of the invention be limited not by the specific embodiments disclosed, but by the appended claims.
Claims (4)
1. A horizontal continuous casting double-connection melting channel which is not easy to break is characterized in that: the double-conjoined melting ditch is formed by a top, a bottom, a middle connecting part and fusing reinforcing parts at two sides, wherein the two melting ditches are bilaterally symmetrical to form a B type, the outer wall of the top of the double-conjoined melting ditch is of a plane structure, the inner walls of the tops of the two melting ditches are of V type, the horizontal inclined angle is 6 degrees, the bottom is of an arc structure and is provided with an inner ring and an outer ring, the tangent point of the inner walls of the fusing reinforcing parts and the inner ring is horizontally upwards offset by 20 degrees, the tangent point of the outer wall and the outer ring is horizontally upwards offset by 14 degrees, and the tangent point of the inner walls of the middle connecting parts and the inner ring is horizontally upwards offset by 15 degrees.
2. The horizontal continuous casting double-connected melting channel with the difficult breaking channel according to claim 1, wherein the melting channel is characterized in that: the arc transition is arranged between the top inner wall and the inner wall of the fusing reinforcement part, the arc radius is 40mm, the arc transition is arranged between the top inner wall and the inner wall of the middle connecting part, and the arc radius is 50mm.
3. The horizontal continuous casting double-connected melting channel with the difficult breaking channel according to claim 2, wherein the melting channel is characterized in that: the top outer wall is 914mm in size.
4. The horizontal continuous casting double-connected melting channel with the difficult breaking channel according to claim 1, wherein the melting channel is characterized in that: the radius of the inner ring of the bottom is 227.5mm, and the radius of the outer ring is 262.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820728.2A CN107576201B (en) | 2017-09-13 | 2017-09-13 | Horizontal continuous casting double-connection melting channel with uneasy breaking channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820728.2A CN107576201B (en) | 2017-09-13 | 2017-09-13 | Horizontal continuous casting double-connection melting channel with uneasy breaking channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107576201A CN107576201A (en) | 2018-01-12 |
| CN107576201B true CN107576201B (en) | 2024-04-23 |
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| CN107576201A (en) | 2018-01-12 |
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