Electric furnace electrode voltage acquisition device

Abstract

The utility model discloses an electric furnace electrode voltage acquisition device, and relates to the technical field of non-ferrous metal metallurgy, the electric furnace electrode voltage acquisition device comprises a pedestal, a fixed rod, a support rod and an acquisition mechanism, the acquisition mechanism comprises a conductive rotating wheel and a lead, the fixed rod is connected with the pedestal, the conductive rotating wheel is rotatably installed on the support rod, and the lead is connected with the conductive rotating wheel. The end, away from the conductive rotating wheel, of the supporting rod is rotationally connected with the fixing rod so that the conductive rotating wheel can abut against the outer wall of the electrode under the gravity effect. According to the technical scheme of the utility model, the fixed rod is rotatably connected with the supporting rod, and the conductive rotating wheel is rotatably installed on the supporting rod, so that the conductive rotating wheel has the advantages of scientific design, small measurement error, high accuracy and low cost when measuring electrode voltage. The three-phase electrode power failure fault of the ore-smelting electric furnace caused by frequent action of the electrode and unevenness of a piezoelectric discharge electrode and an electrode shell interface can be prevented, and quantitative and accurate operation data can be provided for the smelting process requirement and power detection of the ore-smelting electric furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of nonferrous metal smelting, in particular to an electric furnace electrode voltage acquisition device. Background Art

[0002] In the industrial silicon smelting industry, real-time acquisition of the electrode voltage of industrial silicon electric furnaces is required to guide the smelting production process. Conventionally, the secondary voltage of the submerged arc furnace is connected to the secondary output terminal (low-voltage side) of the furnace transformer. Due to the unequal inductive reactance of each branch of the submerged arc furnace short circuit network and the increase in secondary voltage caused by the use of low-voltage compensation, the obtained secondary voltage and the actual operating voltage have a large error, which in turn affects the accurate judgment of the submerged arc furnace smelting condition and the stable operation.

[0003] Therefore, how to reduce the error in measuring voltage is a problem that needs to be solved urgently. Utility Model Content

[0004] The main purpose of the utility model is to provide an electric furnace electrode voltage acquisition device, aiming to solve the problem of how to reduce the error of measuring voltage.

[0005] To achieve the above-mentioned purpose, the present invention proposes an electric furnace electrode voltage collection device, which includes a base, a fixed rod, a support rod and a collection mechanism. The collection mechanism includes a conductive rotor and a wire. The fixed rod is connected to the base, and the conductive rotor is rotatably mounted on the support rod. One end of the support rod away from the conductive rotor is rotatably connected to the fixed rod so that the conductive rotor can abut against the outer wall of the electrode under the action of gravity. The wire is connected to the conductive rotor.

[0006] In one embodiment, the collection mechanism further includes a gasket, a first fastener and a first limit pin, the conductive wire is arranged between the conductive rotor and the gasket, and the gasket and the conductive wire are connected by the first fastener to limit the movement of the conductive wire relative to the conductive rotor; the support rod includes a supporting portion and a connecting portion, the supporting portion is connected to the connecting portion, and an end of the supporting portion away from the connecting portion is rotatably connected to the fixing rod, the conductive rotor is rotatably mounted on the connecting portion, a first mounting hole is provided on the connecting portion, and the first limit pin passes through the first mounting hole to limit the first fastener from moving in a direction away from the connecting portion.

[0007] In one embodiment, the number of the conductive rotor is at least one.

[0008] In one embodiment, the electric furnace electrode voltage acquisition device further includes an elastic limiter, the support rod and the fixed rod are both connected to the elastic limiter, and the elastic limiter is used to limit the size of the angle between the support rod and the fixed rod.

[0009] In one embodiment, the angle ranges from 110° to 140°.

[0010] In one embodiment, the elastic limiting member includes a spring.

[0011] In one embodiment, the base is an insulating base;

[0012] and / or,

[0013] The fixing rod is an insulating fixing rod;

[0014] and / or,

[0015] The support rod is an insulating support rod;

[0016] and / or,

[0017] The conductive wheel is a copper conductive wheel.

[0018] In one embodiment, the fixing rod includes a rod body and a second fastener, the rod body is provided with a first through hole, the support rod is provided with a second through hole, and the second fastener passes through the first through hole and the second through hole so that the rod body and the support rod can rotate relative to the second fastener.

[0019] In one embodiment, the second fastener includes a screw, a first nut, and a second nut. One end of the screw is threadedly engaged with the first nut, and the other end of the screw passes through the first through hole and the second through hole and is threadedly engaged with the second nut.

[0020] In one embodiment, the second fastener further includes a second limiting pin and a third limiting pin, the screw rod is provided with a second mounting hole and a third mounting hole, the second limiting pin passes through the second mounting hole to limit the first nut from moving in a direction away from the support rod, and the third limiting pin passes through the third mounting hole to limit the second nut from moving in a direction away from the support rod;

[0021] and / or,

[0022] The second fastener further includes a protection tube, which is sleeved on the outer wall of the screw, and the hole wall of the first through hole and the hole wall of the second through hole are both rotatably connected to the protection tube.

[0023] In the embodiment of the present invention, the base plays the role of supporting the entire electric furnace electrode voltage collection device, the fixed rod plays a supporting role on the support rod, and the support rod plays a supporting and fixing role on the conductive wheel. The fixed rod and the support rod are rotatably connected, so that the conductive wheel can abut against the outer wall of the electrode under the action of gravity. Due to the action of the support rod, friction can be generated between the conductive wheel and the outer wall of the electrode to ensure that the conductive wheel will not separate from the outer wall of the electrode, thereby realizing real-time measurement of the electrode voltage during the process of lifting and lowering and pressing and releasing the electrode. Compared with the conventional measurement method, the error of measuring the electrode voltage by the electric furnace electrode voltage collection device is smaller and the accuracy is higher; and the conductive wheel is rotatably installed on the support rod, so that The conductive wheel rolls in conjunction with the outer wall of the electrode during the electrode lifting, lowering, and pressing and releasing processes, ensuring that the electrode does not get stuck during the pressing and releasing and lifting processes. This effectively prevents power failures in the three-phase electrodes of the ore-fired electric furnace caused by frequent electrode movement and uneven interfaces between the pressing and releasing electrodes and the electrode shell. A wire is connected to the conductive wheel, and the voltage collected by the conductive wheel can be transmitted to the multi-function meter in the furnace control room via the wire. The multi-function meter is transmitted to the smelting control background through the protocol, so that the furnace table can adjust the load according to the electrode voltage, strengthen the furnace table automation, enhance the operation of the furnace table control system, and have a comprehensive control over the furnace condition and electrodes, thereby guiding smelting production in real time, optimizing the production process, effectively reducing smelting power consumption, and increasing output. In this embodiment, an electric furnace electrode voltage acquisition device can be set on each electrode of the three-phase electrode to measure the voltage drop between the neutral point of the furnace bottom and the electric furnace electrode. Electric furnace electrode voltage acquisition devices can also be set on any two electrodes to measure the voltage drop between any two electrodes. This embodiment does not limit the specific use of the electric furnace electrode voltage acquisition device. The embodiment of the utility model adopts a fixed rod and a support rod rotatably connected, and a conductive wheel rotatably installed on the support rod, so that the conductive wheel has the advantages of scientific design, small measurement error and high accuracy when measuring the electrode voltage, and can prevent the frequent movement of the electrode, the uneven interface between the pressed and released electrode and the electrode shell, which may cause power failure of the three-phase electrode of the electric arc furnace, and can provide quantitative and accurate operating data for the smelting process requirements and power detection of the electric arc furnace; and the electric furnace electrode voltage acquisition device has a simple structure, is easy to install, has high durability and stability, can operate reliably for a long time, and effectively reduces the cost of use and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1This is a structural diagram of an embodiment of an electric furnace electrode voltage acquisition device of the present utility model;

[0026] Figure 2 This is a structural diagram of an embodiment of a collection mechanism of an electric furnace electrode voltage collection device according to the present invention;

[0027] Figure 3 This is a structural schematic diagram of an embodiment of the second fastener of the electric furnace electrode voltage acquisition device of the present invention.

[0028] Description of Figure Numbers:

[0029] 100. Electric furnace electrode voltage collection device; 1. Base; 2. Fixing rod; 21. Rod body; 22. Second fastener; 221. Screw; 222. First nut; 223. Second nut; 224. Second stop pin; 225. Third stop pin; 226. Protective tube; 3. Support rod; 31. Support portion; 32. Connecting portion; 4. Collection mechanism; 41. Conductive rotor; 42. Wire; 43. Gasket; 44. First fastener; 45. First stop pin; 5. Elastic stop member;

[0030] 200. Electrode.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, and back), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] In the industrial silicon smelting industry, real-time acquisition of the electrode voltage of industrial silicon electric furnaces is required to guide the smelting production process. Conventionally, the secondary voltage of the submerged arc furnace is connected to the secondary output terminal (low-voltage side) of the furnace transformer. Due to the unequal inductive reactance of each branch of the submerged arc furnace short circuit network and the increase in secondary voltage caused by the use of low-voltage compensation, the obtained secondary voltage and the actual operating voltage have a large error, which in turn affects the accurate judgment of the submerged arc furnace smelting condition and the stable operation.

[0036] After careful research by the applicant, it was found that in the industrial silicon smelting industry, the ore-fired furnace is the core equipment in the smelting process. The smelting generates low voltage through a transformer, controls active power through electrode movement, material area, and transformer gear adjustment, and melts silica through the arc between the electrodes. Therefore, the operating status of the ore-fired furnace directly affects the energy consumption and output of industrial silicon. The secondary voltage obtained by conventional measurement methods has a large error compared to the actual operating voltage, which has a certain impact on the smelting of industrial silicon.

[0037] The main purpose of the utility model is to provide an electric furnace electrode voltage acquisition device to solve the problem of how to reduce the error of measuring voltage.

[0038] See also Figure 1 and Figure 2 In one embodiment of the present utility model, the electric furnace electrode voltage collection device 100 includes a base 1, a fixed rod 2, a support rod 3 and a collection mechanism 4. The collection mechanism 4 includes a conductive rotor 41 and a wire 42. The fixed rod 2 is connected to the base 1. The conductive rotor 41 is rotatably mounted on the support rod 3. One end of the support rod 3 away from the conductive rotor 41 is rotatably connected to the fixed rod 2 so that the conductive rotor 41 can abut against the outer wall of the electrode 200 under the action of gravity. The wire 42 is connected to the conductive rotor 41.

[0039] In the embodiment of the present invention, the base 1 plays the role of supporting the entire electric furnace electrode voltage acquisition device 100, the fixed rod 2 supports the support rod 3, and the support rod 3 supports and fixes the conductive wheel 41. The fixed rod 2 and the support rod 3 are rotatably connected, so that the conductive wheel 41 can abut against the outer wall of the electrode 200 under the action of gravity. Due to the action of the support rod 3, friction can be generated between the conductive wheel 41 and the outer wall of the electrode 200 to ensure that the conductive wheel 41 will not separate from the outer wall of the electrode 200, thereby realizing real-time measurement of the electrode 200 voltage during the lifting and pressing process of the electrode 200. Compared with the conventional measurement method, the error of measuring the electrode 200 voltage by the electric furnace electrode voltage acquisition device 100 is smaller and the accuracy is higher; and the conductive wheel 41 is rotatably installed on the support rod Rod 3 enables the conductive wheel 41 to roll with the outer wall of the electrode 200 during the lifting, lowering and pressing process of the electrode 200, ensuring that the electrode 200 is not stuck during the pressing and lifting process, and can effectively prevent the three-phase electrode power failure of the smelting thermal electric furnace caused by frequent movement of the electrode 200, the pressing and releasing electrode 200 and the uneven interface of the electrode 200 shell; the wire 42 is connected to the conductive wheel 41, and the voltage collected by the conductive wheel 41 can be transmitted to the multi-function meter in the furnace control room through the wire 42. The multi-function meter is transmitted to the smelting control background through the protocol, so that the furnace can adjust the load according to the voltage of the electrode 200, strengthen the automation of the furnace, enhance the operation of the furnace control system, and have a comprehensive control over the furnace condition and the electrode 200, thereby guiding the smelting production in real time, optimizing the production process, effectively reducing the smelting power consumption and increasing the output. In this embodiment, an electric furnace electrode voltage collection device 100 may be provided on each electrode 200 of the three-phase electrode to measure the voltage drop between the neutral point of the furnace bottom and the electric furnace electrode 200. Alternatively, an electric furnace electrode voltage collection device 100 may be provided on any two electrodes 200 to measure the voltage drop between any two electrodes 200. This embodiment does not limit the specific use of the electric furnace electrode voltage collection device 100.

[0040] The technical solution of the present invention adopts a fixed rod 2 and a support rod 3 that are rotatably connected, and a conductive wheel 41 that is rotatably installed on the support rod 3, so that the conductive wheel 41 has the advantages of scientific design, small measurement error, and high accuracy when measuring the voltage of the electrode 200, and can prevent the electrode 200 from moving frequently, the pressing and releasing electrode 200, and the uneven interface of the electrode 200 shell, which may lead to power failure of the three-phase electrode of the electric arc furnace, and can provide quantitative and accurate operating data for the smelting process requirements and power detection of the electric arc furnace; and the electric furnace electrode voltage acquisition device 100 has a simple structure, is easy to install, has high durability and stability, can operate reliably for a long time, and effectively reduces the cost of use and maintenance.

[0041] See also Figure 2In one embodiment, the collecting mechanism 4 further includes a gasket 43, a first fastener 44 and a first limiting pin 45. The wire 42 is arranged between the conductive rotor 41 and the gasket 43. The gasket 43 and the wire 42 are connected by the first fastener 44 to limit the movement of the wire 42 relative to the conductive rotor 41. The support rod 3 includes a supporting portion 31 and a connecting portion 32. The supporting portion 31 is connected to the connecting portion 32. The end of the supporting portion 31 away from the connecting portion 32 is rotatably connected to the fixed rod 2. The conductive rotor 41 is rotatably mounted on the connecting portion 32. A first mounting hole (not shown) is provided on the connecting portion 32. The first limiting pin 45 passes through the first mounting hole to limit the first fastener 44 from moving away from the connecting portion 32. Specifically, the provision of a gasket 43 strengthens the connection area between the conductive wheel 41 and the wire 42. The gasket 43 can be a copper gasket 43, thereby reducing resistance and ensuring accurate voltage acquisition. The provision of a first fastener 44 ensures stable contact between the wire 42 and the copper gasket 43 and the conductive wheel 41, reducing measurement errors caused by poor contact or movement, thereby improving the accuracy of voltage measurement. The use of a first stopper 45 prevents the first fastener 44 from dislodging during the rotation of the conductive wheel 41, thereby enhancing the stability of the entire acquisition mechanism 4 and ensuring that the acquisition mechanism 4 can continuously and stably perform voltage measurements during the raising, lowering, and pressing and releasing of the electrode 200. In this embodiment, the first fastener 44 can be a stopper pin or a steel wire, and this embodiment does not limit the specific structure of the first fastener 44.

[0042] In one embodiment, the number of the conductive runners 41 is at least one; specifically, at least one conductive runner 41 ensures basic electrical contact with the electrode 200, meeting the basic requirements for voltage collection. In this embodiment, the number of the conductive runners 41 is two, and the number of the wires 42, gaskets 43, first fasteners 44 and first limit pins 45 is consistent with the number of the conductive runners 41 and is arranged in a one-to-one correspondence. The two conductive runners 41 are arranged at intervals, and the two conductive runners 41 abut against the outer wall of the same electrode 200. Since part of the electrode 200 itself may be deformed during construction and transportation, the conductive runners 41 are preferably arranged at intervals. Insulation can adversely affect voltage acquisition. By providing two conductive rotors 41, a dual configuration is adopted. This effectively avoids the problem of insulation on the electrode 200 contacting a single conductive rotor 41 during voltage acquisition, causing real-time measurement interruption. If one conductive rotor 41 fails, acquisition can continue using the other conductive rotor 41, thereby improving the reliability and continuity of the electric furnace electrode voltage acquisition device 100. Furthermore, the two conductive rotors 41 can provide two independent voltage measurements. By comparing the two measured data, the consistency and accuracy of the measurement results can be increased. This embodiment does not limit the specific number of conductive rotors 41.

[0043] See also Figure 1In one embodiment, the electric furnace electrode voltage collection device 100 further includes an elastic limiter 5, to which the support rod 3 and the fixed rod 2 are both connected, and the elastic limiter 5 is used to limit the size of the angle A between the support rod 3 and the fixed rod 2; specifically, the support rod 3 and the fixed rod 2 both provide support points for the elastic limiter 5, so that a certain angle A can be formed between the support rod 3 and the fixed rod 2. The elastic limiter 5 exerts a pulling force on the support rod 3, which can avoid inaccurate measurements caused by an excessively large or small angle A between the support rod 3 and the fixed rod 2, thereby ensuring that the conductive wheel 41 can maintain good contact with the outer wall of the electrode 200 and achieve a good measurement effect during the lifting, lowering, and pressing and releasing processes of the electrode 200, thereby improving the accuracy of voltage measurement and improving the stability and reliability of the entire electric furnace electrode voltage collection device 100; the elastic limiter 5 can also provide a certain buffer when the electrode 200 moves, reducing direct friction between the support rod 3 and the fixed rod 2, thereby reducing wear and extending the service life of the electric furnace electrode voltage collection device 100.

[0044] In one embodiment, the angle A ranges from 110° to 140°. Specifically, the angle A range of 110° to 140° enables the conductive wheel 41 to better adapt to the motion characteristics of the electrode 200, reduces poor contact, and improves the quality and accuracy of the collected data. It can also reduce the mechanical pressure and wear between the conductive wheel 41 and the outer wall of the electrode 200 caused by an excessively large or small angle A, thereby extending the service life of the electric furnace electrode voltage acquisition device 100, reducing failures and damage caused by an inappropriate angle A, and reducing long-term maintenance and repair costs. In this embodiment, the clamp between the support rod 3 and the fixed rod 2 is 120°, allowing the conductive wheel 41 to abut against the outer wall of the electrode 200. During the raising, lowering, and pressing and releasing of the electrode 200, a tensile force is generated on the conductive wheel 41 to ensure that the conductive wheel 41 does not separate from the outer wall of the electrode 200, thereby achieving real-time measurement of the electrode 200 voltage during the raising, lowering, and pressing and releasing of the electrode 200.

[0045] In one embodiment, the elastic limiter 5 includes a spring; specifically, the two ends of the spring are respectively connected to the fixed rod 2 and the support rod 3. The spring has a simple structure and is easy to install and maintain. It can be replaced or adjusted without complicated operations, which is convenient for the operation and maintenance of the electric furnace electrode voltage acquisition device 100. The spring has excellent elasticity, high reliability, good durability, strong adaptability, and can withstand long-term repeated loading, thereby effectively improving the stability and life of the electric furnace electrode voltage acquisition device 100.

[0046] According to an embodiment of the present invention, the elastic limiting member 5 can be made of a butterfly spring, elastic plastic or rubber. This embodiment does not limit the specific structure of the elastic limiting member 5.

[0047] In one embodiment, the base 1 is an insulating base; and / or the fixing rod 2 is an insulating fixing rod; and / or the support rod 3 is an insulating support rod; and / or the conductive rotor 41 is a copper conductive rotor; specifically, in this embodiment, at least one of the base 1, the fixing rod 2 and the support rod 3 is an insulating part, thereby providing insulation protection for the electric furnace electrode voltage acquisition device 100, preventing the electrode 200 from being grounded, avoiding electrical failures and electric shock accidents, providing safety protection for the working environment, and improving the safety of the electric furnace operation; by adopting a copper conductive rotor, the resistance can be reduced, the measurement results can be made more accurate, and the copper conductive rotor can adopt copper bearings, thereby realizing the measurement of the electrode 200 voltage.

[0048] In one embodiment, the fixing rod 2 includes a rod body 21 and a second fastener 22, a first through hole (not shown in the figure) is provided on the rod body 21, and a second through hole (not shown in the figure) is provided on the support rod 3, and the second fastener 22 passes through the first through hole and the second through hole so that the rod body 21 and the support rod 3 can rotate relative to the second fastener 22; specifically, by setting the second fastener 22 and the first through hole and the second through hole, relative rotation is allowed between the fixing rod 2 and the support rod 3, so that the conductive wheel 41 can better maintain contact with the outer wall of the electrode 200 under the action of gravity, thereby improving the reliability of voltage collection, and the structure of the fixing rod 2 and the support rod 3 is simple, easy to disassemble and assemble, and convenient to produce and manufacture.

[0049] See also Figure 3 In one embodiment, the second fastener 22 includes a screw 221, a first nut 222 and a second nut 223. One end of the screw 221 is threadedly engaged with the first nut 222, and the other end of the screw 221 is threadedly engaged with the second nut 223 after passing through the first through hole and the second through hole; specifically, through the coordinated use of the screw 221 and the first nut 222 and the second nut 223, it can be ensured that the rod body 21 and the support rod 3 can rotate while limiting excessive movement, preventing the rod body 21 and the support rod 3 from accidentally falling off or excessive rotation, and the second fastener 22 has a simple structure, is easy to disassemble and assemble, and has good connection stability, thereby enhancing the stability and reliability of the entire electric furnace electrode voltage acquisition device 100.

[0050] According to one embodiment of the present invention, the second fastener 22 includes a limit pin, which passes through the first through hole and the second through hole so that the rod body 21 and the support rod 3 can rotate relative to the second fastener 22. The use of the limit pin can ensure that the rod body 21 and the support rod 3 can rotate relative to each other, prevent the rod body 21 and the support rod 3 from accidentally falling off, and enhance the stability of the entire electric furnace electrode voltage collection device 100.

[0051] In one embodiment, the second fastener 22 further includes a second limiting pin 224 and a third limiting pin 225, and the screw rod 221 is provided with a second mounting hole (not shown in the figure) and a third mounting hole (not shown in the figure), the second limiting pin 224 passes through the second mounting hole to limit the first nut 222 from moving in the direction away from the support rod 3, and the third limiting pin 225 passes through the third mounting hole to limit the second nut 223 from moving in the direction away from the support rod 3; and / or the second fastener 22 further includes a protective tube 226, the protective tube 226 is sleeved on the outer wall of the screw rod 221, and the hole wall of the first through hole and the hole wall of the second through hole are both rotatably connected to the protective tube 226; specifically, the second The use of the limit pin 224 can prevent the first nut 222 from falling off the screw 221 during the rotation of the support rod 3. The use of the second limit pin 224 can prevent the second nut 223 from falling off the screw 221 during the rotation of the support rod 3, thereby enhancing the stability and durability of the entire electric furnace electrode voltage acquisition device 100, and ensuring that the electric furnace electrode voltage acquisition device 100 can continuously and stably perform voltage measurement during the lifting, lowering and pressing of the electrode 200; by providing the protective tube 226, the wear of the screw 221 during the rotation of the support rod 3 can be reduced, thereby extending the service life of the screw 221 and enhancing the stability and reliability of the electric furnace electrode voltage acquisition device 100.

[0052] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electric furnace electrode voltage acquisition device, characterized in that: The electric furnace electrode voltage collection device includes a base, a fixed rod, a support rod and a collection mechanism. The collection mechanism includes a conductive rotor and a wire. The fixed rod is connected to the base. The conductive rotor is rotatably mounted on the support rod. One end of the support rod away from the conductive rotor is rotatably connected to the fixed rod so that the conductive rotor can abut against the outer wall of the electrode under the action of gravity. The wire is connected to the conductive rotor.

2. The electric furnace electrode voltage acquisition device according to claim 1, characterized in that: The collection mechanism also includes a gasket, a first fastener and a first limit pin. The wire is arranged between the conductive rotor and the gasket. The gasket and the wire are connected by the first fastener to limit the movement of the wire relative to the conductive rotor. The support rod includes a supporting portion and a connecting portion. The supporting portion is connected to the connecting portion. An end of the supporting portion away from the connecting portion is rotatably connected to the fixing rod. The conductive rotor is rotatably mounted on the connecting portion. A first mounting hole is provided on the connecting portion. The first limit pin passes through the first mounting hole to limit the first fastener from moving in a direction away from the connecting portion.

3. The electric furnace electrode voltage acquisition device according to claim 1, characterized in that: The number of the conductive rotor is at least one.

4. The electric furnace electrode voltage acquisition device according to claim 1, characterized in that: The electric furnace electrode voltage acquisition device further includes an elastic limiter, the support rod and the fixing rod are both connected to the elastic limiter, and the elastic limiter is used to limit the size of the angle between the support rod and the fixing rod.

5. The electric furnace electrode voltage acquisition device according to claim 4, characterized in that: The angle ranges from 110° to 140°.

6. The electric furnace electrode voltage acquisition device according to claim 4, characterized in that: The elastic limiting component includes a spring.

7. The electric furnace electrode voltage acquisition device according to any one of claims 1 to 6, characterized in that: The base is an insulating base; and / or, The fixing rod is an insulating fixing rod; and / or, The support rod is an insulating support rod; and / or, The conductive wheel is a copper conductive wheel.

8. The electric furnace electrode voltage acquisition device according to any one of claims 1 to 6, characterized in that: The fixing rod includes a rod body and a second fastener, the rod body is provided with a first through hole, the support rod is provided with a second through hole, and the second fastener passes through the first through hole and the second through hole so that the rod body and the support rod can rotate relative to the second fastener.

9. The electric furnace electrode voltage acquisition device according to claim 8, characterized in that: The second fastener includes a screw, a first nut and a second nut. One end of the screw is threadedly engaged with the first nut, and the other end of the screw passes through the first through hole and the second through hole and is threadedly engaged with the second nut.

10. The electric furnace electrode voltage acquisition device according to claim 9, characterized in that: The second fastener further includes a second limiting pin and a third limiting pin, the screw rod is provided with a second mounting hole and a third mounting hole, the second limiting pin passes through the second mounting hole to limit the first nut from moving in a direction away from the support rod, and the third limiting pin passes through the third mounting hole to limit the second nut from moving in a direction away from the support rod; and / or, The second fastener further includes a protection tube, which is sleeved on the outer wall of the screw, and the hole wall of the first through hole and the hole wall of the second through hole are both rotatably connected to the protection tube.

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