CN210781430U - Breakage-proof graphite electrode column - Google Patents
Breakage-proof graphite electrode column Download PDFInfo
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- CN210781430U CN210781430U CN201921834926.5U CN201921834926U CN210781430U CN 210781430 U CN210781430 U CN 210781430U CN 201921834926 U CN201921834926 U CN 201921834926U CN 210781430 U CN210781430 U CN 210781430U
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- graphite electrode
- electrode
- joint
- breakage
- graphite
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Abstract
The utility model relates to a breakage-proof graphite electrode column, belonging to the technical field of graphite electrode production; the purpose is to reduce the breakage rate of the joint of the graphite electrode and the electrode joint, improve the joint strength of the graphite electrode and the electrode joint and solve the problem that a graphite electrode bar is easy to break; the electrode joint and the graphite electrode bar are axially provided with a through connecting hole in the center, and a fiber connecting bar penetrates through the connecting hole; the end surfaces of the head and tail ends of the graphite electrode rods are wedge-shaped concave-convex surfaces, and the head and tail ends of two adjacent graphite electrode rods are in occlusion connection through the wedge-shaped concave-convex surfaces; the utility model discloses set up additional strengthening from many-sided such as inside, interlock department of graphite electrode stick, strengthened the holistic intensity of graphite electrode post, played the even purpose of messenger's current distribution simultaneously, reduced the loss problem that graphite electrode high temperature oxidation leads to, prevent to produce the phenomenon of losing in the in-process that uses.
Description
Technical Field
The utility model belongs to the technical field of graphite electrode, concretely relates to prevent graphite electrode post of rolling over loss.
Background
The graphite electrode is made up by using petroleum coke and needle coke as raw material and coal pitch as binding agent through the processes of calcining, proportioning, kneading, pressing, roasting, graphitizing and machining, and is a conductor which can release electric energy in the form of electric arc in electric arc furnace to heat and melt furnace charge, and can be divided into ordinary power, high power and ultrahigh power according to its low mass index. The existing graphite electrode column is formed by connecting three graphite electrodes together through electrode joints, and then clamping the three graphite electrodes by an electrode clamp holder to be applied to an electric arc furnace. In the production of the ultra-high power electric arc furnace, the conditions of smelting raw materials are harsh, the graphite electrode rod is inevitably broken under high current and high temperature environments, most of the breakage occurs at the connection part of the graphite electrode rod, because the connection part of the graphite electrode bears more load, the graphite electrode rod becomes a weak part, and once the stress exceeds the limit, the graphite electrode rod can be broken.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a prevent graphite electrode post of breaking, and the purpose reduces the breakage rate of graphite electrode and electrode joint junction, improves the joint strength of the two, solves the easy cracked problem of graphite electrode stick.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A breakage-proof graphite electrode column comprises a plurality of graphite electrode rods and electrode connectors, wherein connectors with the shapes matched with those of the electrode connectors are arranged at the head and the tail of each graphite electrode rod, internal threads are arranged on the inner walls of the connectors, external threads are arranged on the outer walls of the electrode connectors, the graphite electrode rods are connected through the head and the tail of the electrode connectors in a threaded manner, the electrode connectors are of spindle-shaped structures, through connecting holes are axially formed in the centers of the electrode connectors and the graphite electrode rods, and a fiber connecting rod penetrates through the connecting holes of the connected graphite electrode rods; the end faces of the head and the tail ends of the graphite electrode rods are wedge-shaped concave-convex surfaces, and the head and the tail ends of two adjacent graphite electrode rods are connected in an occluded manner through the wedge-shaped concave-convex surfaces.
Furthermore, a metal reinforcing block is connected between the wedged concave-convex surfaces meshed with the head end and the tail end of the two graphite electrode rods.
Furthermore, the surface of the fiber connecting rod is wound with a conductive flat cable, and carbon black filler is filled in the connecting hole.
Furthermore, the fiber connecting rod is a carbon fiber connecting rod or a graphene fiber connecting rod.
Furthermore, the diameter ratio of the aperture of the connecting hole to the cross section of the graphite electrode rod is 1: 25-30.
The utility model discloses produced beneficial effect does for prior art.
The utility model discloses a set up the connective bar that the axial link up mutually in the relatively fragile kneck inside, form the structure of similar strengthening rib, strengthened the holistic intensity of graphite electrode post, played the purpose that makes the current distribution even simultaneously, the fibre connective bar has reduced the loss problem that graphite electrode high temperature oxidation leads to, indirect improvement graphite electrode post's life simultaneously, and twine the electrically conductive winding displacement and pour into carbon black filler further on the fibre connective bar and reduce the loss of graphite electrode, also reduced graphite electrode post's breakage rate; the wedged occlusion surfaces are combined at the head and tail interfaces of the graphite electrode rod, so that the transverse acting force of the graphite electrode is improved, the strength is improved, and the further increased metal reinforcing blocks generate a more powerful supporting effect on the occlusion surfaces, so that the overall strength of the graphite electrode column is enhanced, and the phenomenon of breakage in the using process is prevented.
Drawings
Fig. 1 is a schematic structural view of the breakage-proof graphite electrode column of the present invention.
Fig. 2 is an enlarged view of a portion of the fiber connector rod of fig. 1.
Wherein, 1 is graphite electrode stick, 2 is electrode joint, 3 is the interface, 4 is the connecting hole, 5 is the fibre connective bar, 6 is the wedge corrugated surface, 7 is the metal reinforcement piece, 8 is the electrically conductive copper bar, 9 is the electrode holder, 10 is the carbon black filler.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the breakage-proof graphite electrode column comprises 3 graphite electrode rods 1 and two electrode connectors 2, wherein the head and the tail of each graphite electrode rod 1 are provided with connectors 3 with the shapes matched with those of the electrode connectors, the inner wall of each connector 3 is provided with an internal thread, the outer wall of each electrode connector 2 is provided with an external thread, the three graphite electrode rods 1 are connected through the head and the tail of each electrode connector 2 in a threaded manner, each electrode connector 2 is in a spindle-shaped structure, a through connecting hole 4 is axially formed in the centers of the electrode connectors 2 and the graphite electrode rods 1, and the diameter ratio of the aperture of each connecting hole 4 to the cross section of each graphite electrode rod 1 is 1: 25; a fiber connecting rod 5 penetrates through the connecting hole 4 of the connected graphite electrode rod 1; the fiber connecting rod 5 is a graphene fiber connecting rod; the surface of the fiber connecting rod 5 is wound with a conductive copper bar 8, and the connecting hole 4 is filled with carbon black filler 10. The end surfaces of the head and tail ends of the graphite electrode rods 1 are wedge-shaped concave-convex surfaces 6, and the head and tail ends of two adjacent graphite electrode rods 1 are connected in an occluded manner through the wedge-shaped concave-convex surfaces 6. A metal reinforcing block 7 is connected between the wedged concave-convex surfaces 6 meshed with the head end and the tail end of the two graphite electrode rods 1, the metal reinforcing block 7 is an annular copper wire, one part of the copper wire is inserted into the wedged concave-convex surfaces 6, and the other part of the copper wire is positioned outside the graphite electrode rods 1.
The graphite electrode column has the advantages that the fiber connecting rods 5 which are axially communicated are arranged in the relatively fragile interface to form a structure similar to a reinforcing rib, the overall strength of the graphite electrode column is enhanced, and the purpose of enabling current distribution to be uniform is achieved at the same time, the fiber connecting rods 5 reduce the loss problem caused by high-temperature oxidation of the graphite electrode, the service life of the graphite electrode column is indirectly prolonged, the conductive flat cable is wound on the fiber connecting rods 5, carbon black filler is filled in the fiber connecting rods to further reduce the loss of the graphite electrode, and the breakage rate of the graphite electrode column is also reduced; the wedged occlusion surfaces are combined at the head and tail interfaces of the graphite electrode rod, so that the transverse acting force of the graphite electrode is improved, the strength is improved, and the further increased metal reinforcing blocks generate a more powerful supporting effect on the occlusion surfaces, so that the overall strength of the graphite electrode column is enhanced, and the phenomenon of breakage in the using process is prevented.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (5)
1. The utility model provides a graphite electrode post of loss of preventing rolling over, includes a plurality of graphite electrode stick (1) and electrode joint (2), the head and the tail portion of graphite electrode stick (1) is provided with interface (3) that shape and electrode joint suited, interface (3) inner wall is provided with the internal thread, electrode joint (2) outer wall is provided with the external screw thread, and a plurality of graphite electrode stick (1) pass through electrode joint (2) head and the tail threaded connection, its characterized in that, electrode joint (2) are fusiform structure, and the central axial of electrode joint (2) and graphite electrode stick (1) is provided with connecting hole (4) that link up, run through a fibre connecting rod (5) in connecting hole (4) of a plurality of connected graphite electrode stick (1); the end faces of the head end and the tail end of each graphite electrode rod (1) are wedge-shaped concave-convex surfaces (6), and the head end and the tail end of each two adjacent graphite electrode rods (1) are connected in an occluded mode through the wedge-shaped concave-convex surfaces (6).
2. The breakage-proof graphite electrode column as claimed in claim 1, wherein a metal reinforcing block (7) is connected between the wedged concave-convex surfaces (6) which are engaged with the head and tail ends of the two graphite electrode rods (1).
3. The breakage-proof graphite electrode column as claimed in claim 1, wherein the surface of the fiber connecting rod (5) is wound with a conductive flat cable, and carbon black filler is filled in the connecting hole.
4. The breakage-proof graphite electrode column as claimed in claim 1, wherein the fiber connecting rod (5) is a carbon fiber connecting rod or a graphene fiber connecting rod.
5. The breakage-proof graphite electrode column as claimed in claim 1, wherein the diameter ratio of the bore diameter of the connecting hole (4) to the cross-sectional diameter of the graphite electrode rod (1) is 1: 25-30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834926.5U CN210781430U (en) | 2019-10-29 | 2019-10-29 | Breakage-proof graphite electrode column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834926.5U CN210781430U (en) | 2019-10-29 | 2019-10-29 | Breakage-proof graphite electrode column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210781430U true CN210781430U (en) | 2020-06-16 |
Family
ID=71045670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921834926.5U Expired - Fee Related CN210781430U (en) | 2019-10-29 | 2019-10-29 | Breakage-proof graphite electrode column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210781430U (en) |
-
2019
- 2019-10-29 CN CN201921834926.5U patent/CN210781430U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20211029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |