Anti-magnetic induction electrode column

Abstract

The invention relates to the technical field of electric arc furnaces, in particular to an anti-magnetic induction electrode stand column which comprises a hydraulic cylinder and an electrode guide rod, the hydraulic cylinder is fixedly arranged in an inner cavity of a longitudinal rod of the electrode guide rod and used for driving the electrode guide rod to ascend and descend, and the top of the electrode guide rod is of a T-shaped frame structure formed by combining steel-copper composite plates. The top of the device adopts the steel-copper composite plate to replace a steel plate, so that the structural strength of the device is ensured, the characteristic that the magnetic conductivity of copper is relatively low is utilized to weaken the phenomenon of electromagnetic induction heat release generated when the device is in a magnetic field, and the problem that in the prior art, in the operation process of an electric arc furnace, the magnetic conductivity of the device is relatively low is solved. And the electrode stand column has the characteristic of being convenient to assemble.

Description

Technical Field

[0001] The invention relates to the technical field of electric arc furnaces, and in particular to a magnetic-dielectric induction electrode column. Background Art

[0002] An electric arc furnace refers to an electric furnace that uses the high temperature generated by the electrode arc to melt ores and metals. In the prior art, the electrode used to generate the arc in the electric arc furnace is generally inserted from the top of the electric arc furnace into the ladle of the electric arc furnace. The top of the electrode is fixedly connected to the cross arm, and the cross arm is fixedly set on the top of the electrode column. The electrode column drives the cross arm to rise and fall, thereby adjusting the depth of the electrode inserted into the ladle.

[0003] The movable electrode column is generally composed of an electrode guide rod and a hydraulic cylinder. The hydraulic cylinder is fixed in the inner cavity of the longitudinal rod of the electrode guide rod, and the cross arm is fixed on the cross rod located at the top of the electrode guide rod. The telescopic cylinder rod of the hydraulic cylinder extends out through the assembly hole opened at the bottom of the electrode guide rod and is connected to an external device. The hydraulic cylinder drives the electrode guide rod to rise and fall by adjusting the extension length of the telescopic lever, thereby achieving the purpose of driving the cross arm and the electrode to rise and fall synchronously.

[0004] In the prior art known to the inventor, the electrode guide rod of the electrode column is generally a T-shaped frame structure formed by fixing and welding steel plates. Since the electric arc furnace adopts ultra-high power power supply and the three-phase cross arms of the electric arc furnace are arranged in a triangular shape, during the operation of the electric arc furnace, the electrode column often heats up severely due to electromagnetic induction, which can easily cause the electrode column to deform due to heat. Summary of the invention

[0005] In view of the technical problem in the prior art that the electrode column is seriously heated during the operation of the electric arc furnace, an embodiment of the present invention provides a hydraulic cylinder and an electrode guide rod, wherein the hydraulic cylinder is fixedly arranged in the inner cavity of the longitudinal rod of the electrode guide rod and is used to drive the electrode guide rod to move up and down, and the electrode guide rod is a T-shaped frame structure formed by fixing and welding steel-copper composite plates; The steel-copper composite plate is formed by stacking a copper plate layer, a plastic adhesive layer and a steel plate layer in sequence. The plastic adhesive layer is located between the copper plate layer and the steel plate layer. The top surface of the steel plate layer and the bottom surface of the copper plate layer are both wavy surfaces. The outer surface of the plastic adhesive layer is in contact with the outer surfaces of the steel plate layer and the copper plate layer, so as to fix the copper plate layer on the steel plate layer.

[0006] Furthermore, a cooling pipe is embedded on the inner wall of the electrode guide rod, and the input end and the output end of the cooling pipe are both connected to an external refrigeration device for transmitting the coolant of the refrigeration device. Preferably, the input end and the output end of the cooling pipe are both provided with an electrically controlled valve for controlling the on and off of the cooling pipe.

[0007] Further, the cooling tube comprises: An input pipe is embedded in the inner wall of the electrode guide rod, the input pipe is located at the top of the electrode guide rod, the input pipe is arranged between the copper plate layer and the steel plate layer, the outer surface of the input pipe is in contact with the bottom surface of the copper plate layer and the top surface of the steel plate layer, and the input end of the input pipe is connected to the refrigeration equipment for transmitting the coolant; An output pipe is embedded in the inner wall of the electrode guide rod, the output pipe is located at the top of the electrode guide rod, the output pipe is arranged between the copper plate layer and the steel plate layer, the outer surface of the output pipe is in contact with the bottom surface of the copper plate layer and the top surface of the steel plate layer, and the output end of the output pipe is connected to the refrigeration equipment for transmitting the coolant; The circulation pipeline is fixedly arranged on the circumferential side wall of the inner cavity of the longitudinal rod. The input end of the circulation pipeline is connected with the output end of the input pipe, and the output end of the circulation pipeline is connected with the input end of the output pipe for transmitting the coolant.

[0008] Furthermore, a pair of guide cavities are provided inside the circulation pipeline, any one of which is arranged along the guide of the circulation pipeline, and the pair of guide cavities are arranged in parallel, the head end of one of the guide cavities is connected to the output end of the input pipe, the head end of the other guide cavity is connected to the input end of the output pipe, and the tail ends of the pair of guide cavities are connected for transmitting coolant.

[0009] Furthermore, the radial cross-section of the flow guide cavity is elliptical, and at any position of the circulation pipeline, the long axes of a pair of radial cross-sections of the flow guide cavity both point to the central axis of the longitudinal rod.

[0010] Further, the longitudinal rod comprises: A first rod body is arranged on the transverse rod of the electrode guide rod, and a top end of the first rod body is fixedly connected to a bottom end of the transverse rod; The second rod body is arranged on the first rod body, the top of the second rod body abuts against the bottom of the transverse rod, the second rod body and the first rod body are arranged in parallel, and the cylinder body of the hydraulic cylinder is located in the cavity between the second rod body and the first rod body; The assembly component is arranged on the second rod body and the first rod body, and is used for fixing the second rod body on the first rod body.

[0011] Furthermore, the circulation pipeline includes: several sections of connecting short tubes, wherein a part of the connecting short tubes is fixedly arranged on the inner cavity side wall of the first rod body, and another part of the connecting short tubes is fixedly arranged on the inner cavity side wall of the second rod body, and a pair of connecting cavities are opened in parallel inside any connecting short tube. When the second rod body is assembled on the first rod body, several sections of connecting short tubes are connected end to end in sequence to form a circulation pipeline, and the connecting cavities arranged inside the several sections of connecting short tubes are connected in sequence to form a diversion cavity.

[0012] Furthermore, a joint and a slot are provided at the connection between any two connecting short tubes, the joint is fixedly provided at the end of one of the connecting short tubes, the joint is communicated with a pair of connecting cavities of the connecting short tube, the slot is provided at the end of the other connecting short tube, the slot is communicated with a pair of connecting cavities of the connecting short tube, when the second rod body is assembled to the first rod body, the joint is plugged into the slot, thereby achieving the purpose of communicating the connecting cavities inside the two connecting short tubes Further, the assembly components include: A plurality of blind positioning holes are provided on the side wall of the first rod body; A plurality of first positioning columns are fixedly arranged on the side wall of the second rod body, and the plurality of first positioning columns are respectively plugged into the plurality of positioning blind holes to position the second rod body; A pair of locking members are respectively fixedly arranged at the bottom of the first rod body and the second rod body. When the second rod body is assembled on the first rod body, the pair of locking members are combined to form an externally threaded tubular member; The locking nut is sleeved on a pair of locking pieces. The locking nut is threadedly connected to the pair of locking pieces and is used to fix the second rod body on the first rod body.

[0013] Furthermore, the assembly component also includes: a pair of limit blocks, which are respectively fixedly arranged on the inner cavity side walls of the first rod body and the second rod body, and the tops of the pair of limit blocks abut against the bottom of the cylinder body to limit the cylinder body.

[0014] Furthermore, the assembly components also include: A positioning hole is provided on one of the limit stops; The second positioning column is fixedly arranged at the bottom of the cylinder body, and the second positioning column is plugged into the positioning hole to position the cylinder body.

[0015] Furthermore, the device also includes: a cushion block, which is movably arranged in the inner cavity of the longitudinal rod, the top of the cushion block abuts against the top wall of the inner cavity of the longitudinal rod, and the bottom of the cushion block abuts against the top of the hydraulic cylinder.

[0016] The anti-magnetic induction electrode column according to the embodiment of the present invention has the following beneficial effects: 1. The top of the device uses a steel-copper composite plate instead of a steel plate, which ensures the structural strength of the device and also uses the relatively low magnetic permeability of copper to weaken the electromagnetic induction heat release phenomenon generated when the device is in a magnetic field, so as to solve the technical problem of serious heating of the electrode column during the operation of the electric arc furnace in the prior art.

[0017] 2. The device embeds a cooling pipe in the inner wall, and connects the input and output ends of the cooling pipe to a refrigeration device. The refrigeration device is used to input a coolant with a lower temperature into the cooling pipe, and the coolant is guided along the cooling pipe for one cycle and then returns to the refrigeration device, thereby taking away the heat of the device itself, thereby achieving the purpose of cooling the device and preventing the device from being severely heated and deformed due to its own electromagnetic induction phenomenon when it is in an electromagnetic field.

[0018] 3. This device arranges a circulation pipeline on the circumferential side wall of the inner cavity of the longitudinal rod to ensure that the longitudinal rod is cooled. At the same time, it can also protect the hydraulic cylinder and prevent the hydraulic pipe laid on the hydraulic cylinder from rupture due to the collision between the hydraulic cylinder and the inner wall of the longitudinal rod during the process of assembling the hydraulic cylinder into the inner cavity of the longitudinal rod.

[0019] 4. The circulation pipeline of the device is provided with a pair of guide cavities in parallel inside thereof, so that a belly support structure is formed between the pair of guide cavities inside the circulation pipeline, thereby improving the structural strength of the circulation pipeline, and further improving the protective effect of the circulation pipeline on the hydraulic cylinder.

[0020] 5. The longitudinal rod of the device adopts a split design, which makes it convenient for users to assemble the hydraulic cylinder into the inner cavity of the longitudinal rod, reduces the difficulty of assembling the hydraulic cylinder into the inner cavity of the longitudinal rod, and also reduces the possibility of collision between the hydraulic cylinder and the longitudinal rod during the process of assembling the hydraulic cylinder into the inner cavity of the longitudinal rod, resulting in the possibility of rupture of the hydraulic pipe laid on the hydraulic cylinder.

[0021] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a stereogram according to an embodiment of the present invention; Figure 2 Schematic diagram of the internal structure of a steel-copper composite plate according to an embodiment of the present invention; Figure 3 A schematic diagram of a structural decomposition according to an embodiment of the present invention; Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle A area; Figure 5 An overall cross-sectional view according to an embodiment of the present invention (the hydraulic cylinder and the cushion block are hidden) Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle B area; Figure 7 for Figure 5 A magnified schematic diagram of the military headquarters in the middle C area; Figure 8 Schematic diagram of the connection position of the tail ends of a pair of flow guide cavities according to an embodiment of the present invention (the outer wall of the circulation pipeline is processed through perspective).

[0023] Description of the accompanying drawings: 1-hydraulic cylinder, 11-cylinder body, 12-telescopic cylinder rod, 2-electrode guide rod, 211-input pipe, 212-output pipe, 213-circulation pipeline, 2131-guiding cavity, 2132-abdominal support structure, 2133-connecting short pipe, 21331-connector, 21332-slot, 21333-connecting cavity, 22-longitudinal rod, 221-first rod body, 222-second rod body, 2231-positioning blind hole, 2232-first positioning column, 2233-locking piece, 2234-locking nut, 2235-limit block, 2236-positioning hole, 2237-second positioning column, 23-transverse rod, 24-copper plate layer, 25-plastic adhesive layer, 26-steel plate layer, 3-pad. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0025] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only reference directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, in all embodiments, the same reference numerals represent the same elements.

[0026] First, combine Figure 1 to Figure 8 The anti-magnetic induction electrode column according to an embodiment of the present invention is described, which is used to support the cross arm and electrode of an electric arc furnace and has a wide range of application scenarios.

[0027] Specifically, Figure 1 , 2As shown, the anti-magnetic induction electrode column of the embodiment of the present invention includes a hydraulic cylinder 1 and an electrode guide rod 2. The hydraulic cylinder 1 is fixedly arranged in the inner cavity of the longitudinal rod 22 of the electrode guide rod 2, and is used to drive the electrode guide rod 2 to move up and down. The electrode guide rod 2 is a T-shaped frame structure formed by fixed welding of steel-copper composite plates; the steel-copper composite plate is formed by stacking a copper plate layer 24, a plastic adhesive layer 25 and a steel plate layer 26 in sequence, and the plastic adhesive layer 25 is located between the copper plate layer 24 and the steel plate layer 26. The top surface of the steel plate layer 26 and the bottom surface of the copper plate layer 24 are both wavy surfaces. The outer surface of the plastic adhesive layer 25 is in contact with the outer surfaces of the steel plate layer 26 and the copper plate layer 24, and is used to fix the copper plate layer 24 on the steel plate layer 26. The plastic adhesive layer 25 is preferably made of plastic mixed with glass fiber or asbestos rock fiber. Material; in this embodiment, a steel-copper composite plate is used instead of a steel plate at the top of the device, which ensures the structural strength of the device and utilizes the relatively low magnetic permeability of copper to weaken the electromagnetic induction heat release phenomenon generated when the device is in a magnetic field, so as to solve the technical problem of serious heating of the electrode column during the operation of the electric arc furnace in the prior art. In addition, the steel-copper composite plate of the device is provided with a plastic adhesive layer 25 of a plastic material mixed with glass fiber or asbestos rock fiber between the steel plate layer 26 and the copper plate layer 24, which not only ensures the bonding strength between the copper plate layer 24 and the steel plate layer 26, but also effectively reduces the heat exchange efficiency from the copper plate layer 24 to the steel plate layer 26, thereby weakening the conduction efficiency of the high temperature generated by the electrode discharge to the steel plate layer 26 of the electrode guide rod 2 during the operation of the electric arc furnace.

[0028] Further, if Figure 1~Figure 3 , Figure 5 As shown, a cooling pipe is embedded on the inner wall of the electrode guide rod 2, and the input end and the output end of the cooling pipe are both connected to an external refrigeration device (not shown in the figure) for transmitting the coolant of the refrigeration device. Preferably, the input end and the output end of the cooling pipe are both provided with an electrically controlled valve (not shown in the figure) for controlling the on and off of the cooling pipe. In this embodiment, the device embeds a cooling pipe in the inner wall, and connects the input end and the output end of the cooling pipe to the refrigeration device. The refrigeration device is used to input the coolant with a lower temperature into the cooling pipe, and the coolant is guided along the cooling pipe for one cycle and then returns to the refrigeration device, thereby taking away the heat of the device itself, achieving the purpose of cooling the device, so as to improve the problem that when the device is in an electromagnetic field, the heat release is serious due to its own electromagnetic induction phenomenon, which leads to its own deformation due to heat.

[0029] Further, if Figure 1~Figure 3 , Figure 5As shown, the cooling pipe includes: an input pipe 211, which is embedded in the inner wall of the electrode guide rod 2, the input pipe 211 is located at the top of the electrode guide rod 2, the input pipe 211 is arranged between the copper plate layer 24 and the steel plate layer 26, the outer surface of the input pipe 211 is in contact with the bottom surface of the copper plate layer 24 and the top surface of the steel plate layer 26, the input end of the input pipe 211 is connected to the refrigeration equipment, and the output end of the input pipe 211 protrudes from the inner cavity surface of the longitudinal rod 22 for transmitting the coolant; an output pipe 212, which is embedded in In the inner wall of the electrode guide rod 2, the output tube 212 is located at the top of the electrode guide rod 2, the output tube 212 is arranged between the copper plate layer 24 and the steel plate layer 26, the outer surface of the output tube 212 is in contact with the bottom surface of the copper plate layer 24 and the top surface of the steel plate layer 26, the output end of the output tube 212 is connected to the refrigeration equipment, and the input end of the output tube 212 protrudes from the inner cavity surface of the longitudinal rod 22 for transmitting the coolant; the circulation pipeline 213 is fixedly arranged on the circumferential side wall of the inner cavity of the longitudinal rod 22, and the circulation pipeline 213 is fixedly arranged on the circumferential side wall of the inner cavity of the longitudinal rod 22. The input end of the circulation line 213 is connected to the output end of the input pipe 211, and the output end of the circulation line 213 is connected to the input end of the output pipe 212 for transmitting the coolant. In this embodiment, the device arranges the circulation line 213 on the circumferential side wall of the inner cavity of the longitudinal rod 22 to achieve the purpose of cooling the longitudinal rod 22. At the same time, it can also protect the hydraulic cylinder 1 to a certain extent, preventing the hydraulic cylinder 1 from being damaged by the hydraulic cylinder 1 and the longitudinal rod 22 during the process of assembling the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22. 2. The problem of the hydraulic pipe laid on the hydraulic cylinder 1 being broken due to the collision with the inner wall thereof. Secondly, by arranging the input pipe 211 and the output pipe 212 between the steel plate layer 26 and the copper plate layer 24 of the steel-copper composite plate, and making the outer surfaces of the input pipe 211 and the output pipe 212 fit with the outer surfaces of the steel plate layer 26 and the copper plate layer 24 with higher thermal conductivity, the input pipe 211 and the output pipe 212 are used to transmit the coolant to take away the steel plate layer 26 and the copper plate layer 24, so as to achieve the purpose of cooling the electrode guide rod.

[0030] Further, if Figure 3~Figure 6 , Figure 8 As shown, a pair of guide cavities 2131 are provided inside the circulation pipeline 213, and any one of the guide cavities 2131 is arranged along the guide of the circulation pipeline 213. The pair of guide cavities 2131 are arranged in parallel, and the head end of one of the guide cavities 2131 is connected to the output end of the input pipe 211, and the head end of the other guide cavity 2131 is connected to the input end of the output pipe 212, and the tail ends of the pair of guide cavities 2131 are connected for transmitting coolant.

[0031] Further, if Figure 3 , Figure 5 , Figure 6As shown, the circulation pipeline 213 is spirally arranged inside the longitudinal rod 22 around the central axis of the longitudinal rod 22 and along the axial direction of the longitudinal rod 22, surrounding the hydraulic cylinder 1 on its inner side, and the radial cross-section shape of the guide cavity 2131 is elliptical, so as to increase the water flow area of ​​the guide cavity 2131 under the premise of the same diameter of the circulation pipeline 213, and at any position of the circulation pipeline 213, the long axes of the radial cross-section shapes of a pair of guide cavities 2131 all point to the central axis of the longitudinal rod 22; in this embodiment, the circulation pipeline 213 is provided with a pair of guide cavities 2131 inside, so that the circulation pipeline 213 has a pair of guide cavities 2131 inside. An abdominal support structure 2132 is formed between 131 to improve the structural strength of the circulation pipeline 213 to prevent the hydraulic cylinder 1 from colliding with a part of the circulation pipeline 213 during the process of assembling the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22, causing the circulation pipeline 213 to be severely deformed and ruptured. At the same time, it also avoids the situation where the hydraulic cylinder 1 collides with a part of the circulation pipeline 213 due to severe deformation of the circulation pipeline 213, causing the hydraulic cylinder 1 to directly collide with the inner wall of the longitudinal rod 22, thereby improving the protective effect of the circulation pipeline 213 on the hydraulic cylinder 1. In this embodiment, the material of the abdominal support structure 2132 is preferably a heat-insulating material.

[0032] Further, if Figure 1 , Figure 3 As shown, the longitudinal rod 22 includes: a first rod body 221, which is arranged on the transverse rod 23 of the electrode guide rod 2, and the top of the first rod body 221 is fixedly connected to the bottom of the transverse rod 23; a second rod body 222, which is arranged on the first rod body 221, and the top of the second rod body 222 is abutted against the bottom of the transverse rod 23, the second rod body 222 and the first rod body 221 are arranged in parallel, and the cylinder body 11 of the hydraulic cylinder 1 is located in the cavity between the second rod body 222 and the first rod body 221; the assembly components are arranged on the second rod body 222 and the first rod body 221, Used to fix the second rod body 222 on the first rod body 221; in the present embodiment, by adopting the longitudinal rod 22 composed of the first rod body 221, the second rod body 222 and the assembly component, it is convenient for the user to assemble the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22, thereby reducing the difficulty for the user to assemble the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22, and at the same time, during the process of assembling the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22, the possibility of the hydraulic cylinder 1 colliding with the longitudinal rod 22, thereby causing the possibility of the hydraulic pipe laid on the hydraulic cylinder 1 to rupture.

[0033] Preferably, Figure 1 to Figure 6As shown, in this embodiment, the circulation pipeline 213 includes: a plurality of connecting short tubes 2133, wherein a portion of the connecting short tubes 2133 is fixedly arranged on the inner cavity side wall of the first rod body 221, and another portion of the connecting short tubes 2133 is fixedly arranged on the inner cavity side wall of the second rod body 222, and a pair of connecting cavities 21333 are opened in parallel inside any connecting short tube 2133. When the second rod body 222 is assembled on the first rod body 221, the plurality of connecting short tubes 2133 are connected end to end in sequence to form the circulation pipeline 213, and the connecting cavities 21333 arranged inside the plurality of connecting short tubes 2133 are connected in sequence to form the guide cavity 2131.

[0034] Preferably, Figure 3~Figure 5 As shown, in this embodiment, a joint 21331 and a slot 21332 are provided at the connection between any two connecting short tubes 2133, the joint 21331 is fixedly provided at the end of one of the connecting short tubes 2133, the joint 21331 is communicated with a pair of connecting cavities 21333 of the connecting short tube 2133, the slot 21332 is opened at the end of the other connecting short tube 2133, the slot 21332 is communicated with a pair of connecting cavities 21333 of the connecting short tube 2133, when the second rod body 222 is assembled to the first rod body 221, the joint 21331 is plugged into the slot 21332, thereby achieving the purpose of connecting the connecting cavities 21333 inside the two connecting short tubes 2133.

[0035] Further, if Figure 1 , Figure 3 , Figure 5 , Figure 6 As shown, the assembly assembly includes: a plurality of positioning blind holes 2231, which are opened on the side wall of the first rod body 221; a plurality of first positioning columns 2232, which are fixedly arranged on the side wall of the second rod body 222, and the plurality of first positioning columns 2232 are respectively plugged into the plurality of positioning blind holes 2231, and are used to position the second rod body 222; a pair of locking members 2233, which are respectively fixedly arranged at the bottom of the first rod body 221 and the second rod body 222, and when the second rod body 222 is assembled on the first rod body 221, the pair of locking members 2233 are combined to form an external screw The corrugated tubular member, when the second rod body 222 is assembled on the first rod body 221, the telescopic cylinder rod 12 of the hydraulic cylinder 1 extends to the outside of the longitudinal rod 22 through the cavity between the pair of locking members 2233; the locking nut 2234 is sleeved on the pair of locking members 2233, and the locking nut 2234 is threadedly connected with the pair of locking members 2233, and is used to fix the second rod body 222 on the first rod body 221, so that the user can fix the second rod body 222 on the first rod body 221 by tightening the locking nut 2234.

[0036] Further, if Figure 1 , Figure 3 , Figure 5 , Figure 6 As shown, the assembly component also includes: a pair of limit blocks 2235, which are respectively fixed on the inner cavity side walls of the first rod body 221 and the second rod body 222, and the tops of the pair of limit blocks 2235 abut against the bottom of the cylinder body 11, which are used to limit the cylinder body 11. When the second rod body 222 is assembled on the first rod body 221, the telescopic cylinder rod 12 of the hydraulic cylinder 1 extends to the outside of the longitudinal rod 22 through the cavity between the pair of limit blocks 2235.

[0037] Further, if Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the assembly component further includes: a positioning hole 2236, which is opened on one of the limit blocks 2235; a second positioning column 2237, which is fixedly arranged at the bottom of the cylinder body 11, and the second positioning column 2237 is plugged into the positioning hole 2236 for positioning the cylinder body 11.

[0038] Further, if Figure 1 , Figure 3 , Figure 5 As shown, the device further includes: a cushion block 3, which is movably arranged in the inner cavity of the longitudinal rod 22, the top of the cushion block 3 abuts against the top wall of the inner cavity of the longitudinal rod 22, and the bottom of the cushion block 3 abuts against the top of the hydraulic cylinder 1, for limiting the hydraulic cylinder 1; in this embodiment, the cushion block 3 is preferably made of rubber.

[0039] When the user assembles the device, first, the user places the hydraulic cylinder 1 in the inner cavity of the first rod body 221. During this process, the user needs to ensure that the second positioning column 2237 fixedly set at the bottom of the cylinder body 11 of the hydraulic cylinder 1 is inserted into the positioning hole 2236, and the bottom end surface of the cylinder body 11 is abutted against the top surface of the limit stopper 2235. After the hydraulic cylinder 1 is assembled in place, the user inserts the cushion block 3 into the gap between the hydraulic cylinder 1 and the inner cavity top wall of the first rod body 221 to prevent the hydraulic cylinder 1 from escaping from the inner cavity of the first rod body 221. ; Then, the user assembles the second rod body 222 on the first rod body 221. During this process, the user needs to ensure that the several first positioning columns 2232 fixedly set on the second rod body 222 are respectively fully inserted into the several positioning blind holes 2231, and after the second rod body 222 is assembled in place, a pair of locking pieces 2233 set at the bottom of the first rod body 221 and the second rod body 222 are closed to form an externally threaded tubular piece. Finally, the user tightens the locking nut 2234 on the pair of locking pieces 2233 to complete the assembly of the device.

[0040] When the device drives the cross arm and the electrode to rise, the hydraulic cylinder 1 drives its hydraulic telescopic rod to extend through the cavity between a pair of locking members 2233, driving the electrode guide rod 2 together with the cross arm arranged on the electrode guide rod 2 to rise synchronously with the electrode. Conversely, the electrode guide rod 2 drives the cross arm arranged on the electrode guide rod 2 to descend synchronously with the electrode, so as to achieve the purpose of driving the motor to rise and fall.

[0041] Above, refer to Figure 1 to Figure 8 The anti-magnetic induction electrode column according to the embodiment of the present invention is described, which has the following beneficial effects: 1. The top of the device uses a steel-copper composite plate instead of a steel plate, which ensures the structural strength of the device and also uses the relatively low magnetic permeability of copper to weaken the electromagnetic induction heat release phenomenon generated when the device is in a magnetic field, so as to solve the technical problem of serious heating of the electrode column during the operation of the electric arc furnace in the prior art.

[0042] 2. The device embeds a cooling pipe in the inner wall, and connects the input and output ends of the cooling pipe to a refrigeration device. The refrigeration device is used to input a coolant with a lower temperature into the cooling pipe, and the coolant is guided along the cooling pipe for one cycle and then returns to the refrigeration device, thereby taking away the heat of the device itself, thereby achieving the purpose of cooling the device and preventing the device from being severely heated and deformed due to its own electromagnetic induction phenomenon when it is in an electromagnetic field.

[0043] 3. The device arranges a circulation pipeline 213 on the circumferential side wall of the inner cavity of the longitudinal rod 22 to ensure that the longitudinal rod 22 is cooled. At the same time, it can also protect the hydraulic cylinder 1 and prevent the hydraulic pipe laid on the hydraulic cylinder 1 from rupture due to the collision between the hydraulic cylinder 1 and the inner wall of the longitudinal rod 22 during the process of assembling the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22.

[0044] 4. The circulation pipeline 213 of the device is provided with a pair of guide cavities 2131 in parallel therein, so that a belly support structure 2132 is formed between the pair of guide cavities 2131 inside the circulation pipeline 213, thereby improving the structural strength of the circulation pipeline 213 and further enhancing the protective effect of the circulation pipeline 213 on the hydraulic cylinder 1.

[0045] 5. The longitudinal rod 22 of the device adopts a split design, which makes it convenient for the user to assemble the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22, reduces the difficulty of the user to assemble the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22, and also reduces the possibility of the hydraulic cylinder 1 colliding with the longitudinal rod 22 during the process of assembling the hydraulic cylinder 1 into the inner cavity of the longitudinal rod 22, resulting in the possibility of the hydraulic pipe laid on the hydraulic cylinder 1 being broken.

[0046] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A diamagnetic induction electrode column, comprising a hydraulic cylinder and an electrode guide rod, wherein the hydraulic cylinder is fixedly arranged in the inner cavity of the longitudinal rod of the electrode guide rod and is used to drive the electrode guide rod to rise and fall, characterized in that: The electrode guide rod is a T-shaped frame structure composed of steel-copper composite plates; The steel-copper composite plate is formed by stacking a copper plate layer, a plastic adhesive layer and a steel plate layer in sequence, wherein the plastic adhesive layer is located between the copper plate layer and the steel plate layer, the top surface of the steel plate layer and the bottom surface of the copper plate layer are both wavy surfaces, and the outer surface of the plastic adhesive layer is in contact with the outer surfaces of the steel plate layer and the copper plate layer, so as to fix the copper plate layer on the steel plate layer.

2. The anti-magnetic induction electrode column according to claim 1, characterized in that: A cooling pipe is embedded on the inner wall of the electrode guide rod, and the input end and the output end of the cooling pipe are both connected to an external refrigeration device for transmitting the coolant of the refrigeration device.

3. The anti-magnetic induction electrode column according to claim 2, characterized in that: The cooling tube comprises: An input pipe is embedded in the inner wall of the electrode guide rod, the input pipe is located at the top of the electrode guide rod, the input pipe is arranged between the copper plate layer and the steel plate layer, the outer surface of the input pipe is in contact with the bottom surface of the copper plate layer and the top surface of the steel plate layer, and the input end of the input pipe is connected to the refrigeration device for transmitting the coolant; An output tube is embedded in the inner wall of the electrode guide rod, the output tube is located at the top of the electrode guide rod, the output tube is arranged between the copper plate layer and the steel plate layer, the outer surface of the output tube is in contact with the bottom surface of the copper plate layer and the top surface of the steel plate layer, and the output end of the output tube is connected to the refrigeration equipment for transmitting the coolant; A circulation pipeline is fixedly arranged on the circumferential side wall of the inner cavity of the longitudinal rod, the input end of the circulation pipeline is connected with the output end of the input pipe, and the output end of the circulation pipeline is connected with the input end of the output pipe, for transmitting the coolant.

4. The anti-magnetic induction electrode column according to claim 3, characterized in that: A pair of guide cavities are provided inside the circulation pipeline, any one of the guide cavities is arranged along the guide of the circulation pipeline, the pair of guide cavities are arranged in parallel, the head end of one of the guide cavities is connected to the output end of the input pipe, the head end of the other guide cavity is connected to the input end of the output pipe, and the tail ends of the pair of guide cavities are connected for transmitting the coolant.

5. The anti-magnetic induction electrode column according to claim 4, characterized in that: The radial cross-section shape of the flow guide cavity is an ellipse, and at any position of the circulation pipeline, the long axes of the radial cross-section shapes of the pair of flow guide cavities both point to the central axis of the longitudinal rod.

6. The anti-magnetic induction electrode column according to claim 1, characterized in that: The longitudinal rod comprises: A first rod body, arranged on the transverse rod of the electrode guide rod, wherein the top end of the first rod body is fixedly connected to the bottom end of the transverse rod; A second rod body is arranged on the first rod body, the top of the second rod body abuts against the bottom of the transverse rod, the second rod body is arranged in parallel with the first rod body, and the cylinder body of the hydraulic cylinder is located in a cavity between the second rod body and the first rod body; The assembly component is arranged on the second rod body and the first rod body, and is used for fixing and assembling the second rod body on the first rod body.

7. The anti-magnetic induction electrode column according to claim 6, characterized in that: The assembly components include: A plurality of blind positioning holes are formed on the side wall of the first rod body; A plurality of first positioning columns are fixedly arranged on the side wall of the second rod body, and the plurality of first positioning columns are respectively plugged into the plurality of positioning blind holes to position the second rod body; A pair of locking members, respectively fixedly arranged at the bottom of the first rod body and the second rod body, when the second rod body is assembled on the first rod body, the pair of locking members are combined to form an externally threaded tubular member; A locking nut is sleeved on the pair of locking members, and the locking nut is threadedly connected to the pair of locking members, and is used to fix the second rod body on the first rod body.

8. The anti-magnetic induction electrode column according to claim 7, characterized in that: The assembly component further comprises: a pair of limit blocks, which are respectively fixedly arranged on the inner cavity side walls of the first rod body and the second rod body, and the tops of the pair of limit blocks abut against the bottom of the cylinder body to limit the cylinder body.

9. The anti-magnetic induction electrode column according to claim 8, characterized in that: The assembly component also includes: A positioning hole is provided on one of the limit stops; The second positioning column is fixedly arranged at the bottom of the cylinder body, and the second positioning column is plugged into the positioning hole to position the cylinder body.

10. The anti-magnetic induction electrode column according to claim 1, characterized in that: It also includes: a cushion block, which is movably arranged in the inner cavity of the longitudinal rod, the top of the cushion block abuts against the top wall of the inner cavity of the longitudinal rod, and the bottom of the cushion block abuts against the top of the hydraulic cylinder.

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