Calcium carbide furnace electrode length measuring device

Abstract

This utility model discloses a device for measuring the length of an electrode in a calcium carbide furnace, including a mounting plate. Lifting mechanisms are located at both the front and rear positions of the lower surface of the mounting plate. A lifting plate is connected to the lifting end of each lifting mechanism. Fixed plates are fixedly connected to the front and rear positions of the right side of the upper surface of the lifting plate. A rotating housing is rotatably mounted between the two fixed plates. A slot is provided on the left side of the lifting plate. An adjustment mechanism is provided on the lower surface of the lifting plate. A telescopic mechanism is provided on the rotating housing. A pressure sensor is fixedly connected to one end of the telescopic mechanism, and a moving plate is fixedly connected to the other end of the pressure sensor. An auxiliary measuring rod is fixedly connected to one side of the moving plate. An angle meter is fixedly connected to the front surface of the rotating housing, and a camera is fixedly connected to the upper surface of the rotating housing. This utility model is highly practical and allows for remote operation during electrode measurement, avoiding the risks associated with manual operation and ensuring personal safety.

Description

Technical Field

[0001] This utility model relates to the field of electrode measurement technology, specifically a device for measuring the length of an electrode in a calcium carbide furnace. Background Technology

[0002] The core of a calcium carbide furnace is its three-phase electrode system (usually self-baking or graphite electrodes). The electrodes serve as both a conductive medium and a component of the reactants (carbon source) during the reaction. During production, the electrodes gradually shorten due to high-temperature oxidation, mechanical wear, and continuous chemical reactions. If the electrode shortens beyond a safe range, it can lead to unstable arcs, reduced reaction efficiency, and even production interruption. Therefore, it is necessary to monitor the electrode length regularly.

[0003] Electrode length is usually measured using a mechanical contact method, which involves inserting a round steel bar into the electrode tip and calculating the electrode length using the Pythagorean theorem based on the angle of inclination of the steel bar. This method carries the risk of electric shock and must be performed after the calcium carbide furnace is powered off, which affects the normal operation of the calcium carbide furnace. Furthermore, the feed surface of the calcium carbide furnace is a high-risk area with the risk of high temperature and CO accumulation, and manual operation poses safety risks.

[0004] Therefore, it is necessary to design a practical electrode length measuring device for calcium carbide furnaces. Utility Model Content

[0005] The purpose of this invention is to provide a device for measuring the length of an electrode in a calcium carbide furnace, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a measuring device for the electrode length of an electric arc furnace, comprising a mounting plate, a lifting mechanism provided at both the front and rear positions of the lower surface of the mounting plate, a lifting plate connected to the lifting end of the lifting mechanism, a fixed plate fixedly connected at both the front and rear positions of the right side of the upper surface of the lifting plate, a rotating housing rotatably disposed between the two fixed plates via a rotating rod, a slot provided at the left side of the lifting plate, an adjusting mechanism for driving the rotating housing to rotate provided on the lower surface of the lifting plate at the slot, a telescopic mechanism provided on the rotating housing, a pressure sensor fixedly connected to one end of the telescopic mechanism, a moving plate fixedly connected to one end of the pressure sensor, an auxiliary measuring rod fixedly connected to one side of the moving plate, an angle meter fixedly connected to the right side of the front surface of the rotating housing, and a camera fixedly connected to the right side of the upper surface of the rotating housing.

[0007] According to the above technical solution, the lifting mechanism includes a fixed housing, which is fixedly connected to the lower surface of the mounting plate. A first threaded rod is rotatably mounted on the left and right sides of the fixed housing via a first bearing. A lifting sleeve is threaded onto each of the two first threaded rods. A connecting rod is fixedly connected to one side of each lifting sleeve. One end of the connecting rod extends out of the fixed housing and is fixedly connected to the lifting plate. The fixed housing has a moving groove for the connecting rod to move. A first motor is fixedly connected to the lower inner surface of the fixed housing. A drive shaft is fixedly connected to the output end of the first motor. A first gear is fixedly connected to one end of the drive shaft. A second gear, meshing with the first gear, is fixedly mounted on the left first threaded rod. A transmission wheel is fixedly mounted on each of the two first threaded rods, and the two transmission wheels are connected by a transmission chain.

[0008] According to the above technical solution, the adjustment mechanism includes a connecting housing, which is fixedly connected to the lower surface of the lifting plate. An electric telescopic rod is fixedly connected inside the connecting housing. A connecting column is fixedly connected to the telescopic end of the electric telescopic rod. A connecting frame is rotatably connected to the connecting column via a rotating shaft. A T-shaped slider is fixedly connected to the upper surface of the connecting frame. A T-shaped groove for the T-shaped slider to slide is provided on the lower surface of the rotating housing.

[0009] According to the above technical solution, the telescopic mechanism includes a second motor, which is fixedly connected to the left side of the rotating housing. The output end of the second motor is fixedly connected to a second threaded rod. The second threaded rod extends into the rotating housing through a second bearing and is threadedly sleeved with a movable sleeve rod. A limit block is fixedly connected to the upper surface of the movable sleeve rod. A limit groove for the limit block to slide is provided on the inner wall of the rotating housing. One end of the movable sleeve rod is connected to a pressure sensor.

[0010] According to the above technical solution, a protective cover is fixedly connected to the left side of the rotating housing and to the outside of the second motor.

[0011] According to the above technical solution, the right side of the lifting plate is provided with a slot.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] In this invention, the lifting mechanism allows for the raising and lowering of the lifting plate, enabling the device to be lowered to a set point during measurement. Through the coordination of the fixed plate, rotating rod, rotating housing, slot, adjusting mechanism, telescopic mechanism, pressure sensor, moving plate, auxiliary measuring rod, angle meter, and camera, the auxiliary measuring rod can be extended obliquely through the furnace window into the calcium carbide furnace, with one end of the rod contacting the bottom of the electrode. The pressure sensor generates pressure when the auxiliary measuring rod contacts the electrode, causing the telescopic mechanism to stop operating. The angle meter measures the angle α between the auxiliary measuring rod and the horizontal plane and transmits the value to the control terminal. Since the horizontal distance between the set point and the electrode can be measured beforehand, the control terminal can calculate the electrode length using the tangent theorem. The camera facilitates remote control of the device. This invention allows for remote operation during electrode measurement, avoiding the risks associated with manual operation and ensuring personal safety. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the right-side structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the front sectional view of the present invention. Figure 1 ;

[0019] Figure 5 This is a schematic diagram of the front sectional view of the present invention. Figure 2 ;

[0020] Figure 6 This is a schematic diagram of the right-side cross-sectional structure of the present invention. Figure 1 ;

[0021] Figure 7 This is a schematic diagram of the right-side cross-sectional structure of the present invention. Figure 2 ;

[0022] Figure 8 for Figure 4 Enlarged structural diagram of section A in the middle;

[0023] Figure 9 This is a schematic diagram of the lifting plate of this utility model;

[0024] Figure 10 This is a schematic diagram of the connection structure of the electric telescopic pole of this utility model.

[0025] In the diagram: 1-Mounting plate, 2-Lifting plate, 3-Fixed plate, 4-Rotating rod, 5-Rotating housing, 6-Slot, 7-Pressure sensor, 8-Moving plate, 9-Auxiliary measuring rod, 10-Angle gauge, 11-Camera, 12-Fixed housing, 13-First bearing, 14-First threaded rod, 15-Lifting sleeve, 16-Connecting rod, 17-Moving groove, 18-First motor, 19-Drive shaft, 20-First gear, 21-Second gear, 22-Transmission wheel, 23-Transmission chain, 24-Connecting housing, 25-Electric telescopic rod, 26-Connecting column, 27-Rotating shaft, 28-Connecting frame, 29-T-shaped slider, 30-T-shaped slide, 31-Second motor, 32-Second threaded rod, 33-Second bearing, 34-Moving sleeve rod, 35-Limiting block, 36-Limiting groove, 37-Protective cover, 38-Groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-10This utility model provides a technical solution: a measuring device for the electrode length of an calcium carbide furnace, including a mounting plate 1. Lifting mechanisms are provided at both the front and rear positions of the lower surface of the mounting plate 1. The mounting plate 1 allows the device to be fixed to the steel beams surrounding the calcium carbide furnace. A lifting plate 2 is connected to the lifting end of the lifting mechanism, enabling the lifting plate 2 to be raised and lowered, allowing the device to be lowered to a set position during measurement. Fixing plates 3 are fixedly connected at both the front and rear positions of the right side of the upper surface of the lifting plate 2. A rotating housing 5 is rotatably mounted between the two fixing plates 3 via a rotating rod 4. A slot 6 is provided on the left side of the lifting plate 2. An adjustment mechanism for driving the rotating housing 5 to rotate is provided on the lower surface of the lifting plate 2 at the slot 6. A telescopic mechanism is provided on the rotating housing 5. A pressure sensor 7 is fixedly connected to one end of the telescopic mechanism, and a moving plate 8 is fixedly connected to one end of the pressure sensor 7. An auxiliary measuring rod 9 is fixedly connected to one side of the moving plate 8. The front surface of the rotating housing 5... An angle meter 10 is fixedly connected to the right side of the rotating housing 5, and a camera 11 is fixedly connected to the right side of the upper surface of the rotating housing 5. Through the cooperation between the fixed plate 3, rotating rod 4, rotating housing 5, slot 6, adjustment mechanism, telescopic mechanism, pressure sensor 7, moving plate 8, auxiliary measuring rod 9, angle meter 10 and camera 11, the auxiliary measuring rod 9 can be extended obliquely into the calcium carbide furnace through the furnace window, and one end of the auxiliary measuring rod 9 can be in contact with the bottom of the electrode. The pressure sensor 7 generates pressure when the auxiliary measuring rod 9 contacts the electrode, which then stops the telescopic mechanism. The angle meter 10 can measure the angle α between the auxiliary measuring rod 9 and the horizontal plane and transmit the value to the control terminal. Since the horizontal distance between the set point and the electrode can be measured in advance, the control terminal can calculate the electrode length according to the tangent theorem. The camera 11 facilitates remote control of the device. This utility model can be remotely operated when measuring the electrode, avoiding the risks that are easy to occur during manual operation and ensuring personal safety.

[0028] The lifting mechanism includes a fixed housing 12, which is fixedly connected to the lower surface of the mounting plate 1. First threaded rods 14 are rotatably mounted on both the left and right sides of the fixed housing 12 via first bearings 13. Lifting sleeves 15 are threaded onto both first threaded rods 14. A connecting rod 16 is fixedly connected to one side of each lifting sleeve 15, with one end of the connecting rod 16 extending out of the fixed housing 12 and fixedly connected to the lifting plate 2. The fixed housing 12 has a moving groove 17 for the connecting rod 16 to move. A first motor 18 is fixedly connected to the lower inner surface of the fixed housing 12. A drive shaft 19 is fixedly connected to the output end of the first motor 18. A first gear 20 is fixedly connected to one end of the drive shaft 19. A gear meshing with the first gear 20 is fixedly mounted on the left side of the first threaded rod 14. The second gear 21 is connected, and transmission wheels 22 are fixedly sleeved on both first threaded rods 14. The two transmission wheels 22 are connected by transmission chain 23. With the setting of the lifting mechanism, the first motor 18 can be started. The output end of the first motor 18 drives the first gear 20 to rotate through the drive shaft 19. The first gear 20 meshes with the second gear 21 on the left first threaded rod 14, thereby causing the left first threaded rod 14 to rotate. The left first threaded rod 14 can drive the right first threaded rod 14 to rotate through the cooperation of the transmission wheel 22 and transmission chain 23, thereby realizing the rotation of both first threaded rods 14. The rotation of the two first threaded rods 14 causes the lifting sleeve 15 to drive the lifting plate 2 to move through the setting of the connecting rod 16 and the moving groove 17, thereby realizing the lifting of the device.

[0029] The adjustment mechanism includes a connecting housing 24, which is fixedly connected to the lower surface of the lifting plate 2. An electric telescopic rod 25 is fixedly connected inside the connecting housing 24. A connecting column 26 is fixedly connected to the telescopic end of the electric telescopic rod 25. A connecting frame 28 is rotatably connected to the connecting column 26 via a rotating shaft 27. A T-shaped slider 29 is fixedly connected to the upper surface of the connecting frame 28. A T-shaped groove 30 is provided on the lower surface of the rotating housing 5 for the T-shaped slider 29 to slide. With the adjustment mechanism, the electric telescopic rod 25 can be activated during use. The telescopic end of the electric telescopic rod 25 drives the connecting column 26 to move upward. The connecting column 26, in cooperation with the rotating shaft 27, the connecting frame 28, the T-shaped slider 29, and the T-shaped groove 30, can realize the upward rotation of the left end of the rotating housing 5, thereby realizing the angle adjustment.

[0030] The telescopic mechanism includes a second motor 31, which is fixedly connected to the left side of the rotating housing 5. The output end of the second motor 31 is fixedly connected to a second threaded rod 32. The second threaded rod 32 extends into the rotating housing 5 through a second bearing 33 and is threadedly sleeved with a movable sleeve 34. A limit block 35 is fixedly connected to the upper surface of the movable sleeve 34. A limit groove 36 is provided on the inner wall of the rotating housing 5 for the limit block 35 to slide. One end of the movable sleeve 34 is connected to a pressure sensor 7. By setting up the telescopic mechanism, the second motor 31 can be started. The output end of the second motor 31 drives the second threaded rod 32 to rotate. The rotation of the second threaded rod 32 causes the movable sleeve 34 to move under the cooperation of the limit block 35 and the limit groove 36, thereby realizing the movement of the auxiliary measuring rod 9.

[0031] A protective cover 37 is fixedly connected to the left side of the rotating housing 5 and to the outside of the second motor 31. The second motor 31 can be protected by the protective cover 37.

[0032] The right side of the lifting plate 2 is provided with a slot 38. The slot 38 is provided to avoid obstructing the rotation of the rotating housing 5.

[0033] Working Principle: When measuring, this invention activates the first motor 18 in the lifting mechanism. The output of the first motor 18 drives the first gear 20 to rotate via the drive shaft 19. The first gear 20, in conjunction with the second gear 21, the transmission wheel 22, and the transmission chain 23, drives the two first threaded rods 14 to rotate. The rotation of the two first threaded rods 14 causes the lifting sleeve 15 to move downward via the connecting rod 16 and the moving groove 17, thereby lowering the device to the set position. By activating the electric telescopic rod 25 in the adjustment mechanism, the telescopic end of the electric telescopic rod 25 drives the connecting column 26 to move upward. The connecting column 26, in conjunction with the rotating shaft 27, the connecting frame 28, the T-shaped slider 29, and the T-shaped groove 30, enables the rotation of the housing 5. The upward rotation of the left end allows for angle adjustment. In conjunction with the telescopic mechanism, the auxiliary measuring rod 9 can be extended obliquely through the furnace window into the calcium carbide furnace, bringing one end of the auxiliary measuring rod 9 into contact with the bottom of the electrode. The pressure sensor 7 generates pressure when the auxiliary measuring rod 9 contacts the electrode, causing the telescopic mechanism to stop operating. The angle meter 10 measures the angle α between the auxiliary measuring rod 9 and the horizontal plane and transmits the value to the control terminal. Since the horizontal distance between the set point and the electrode can be measured in advance, the control terminal can calculate the electrode length based on the tangent theorem. The camera 11 facilitates remote control of the device. This invention allows for remote operation when measuring the electrode, avoiding the risks associated with manual operation and ensuring personal safety.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for measuring the length of an electrode in a calcium carbide furnace, comprising a mounting plate (1), characterized in that: Lifting mechanisms are provided at the front and rear positions of the lower surface of the mounting plate (1). The lifting end of the lifting mechanism is connected to the lifting plate (2). Fixed plates (3) are fixedly connected at the front and rear positions of the right side of the upper surface of the lifting plate (2). A rotating housing (5) is rotatably set between the two fixed plates (3) through a rotating rod (4). A slot (6) is provided at the left side of the lifting plate (2). An adjustment mechanism for driving the rotating housing (5) to rotate is provided on the lower surface of the lifting plate (2) at the slot (6). A telescopic mechanism is provided on the rotating housing (5). A pressure sensor (7) is fixedly connected to one end of the telescopic mechanism. A moving plate (8) is fixedly connected to one end of the pressure sensor (7). An auxiliary measuring rod (9) is fixedly connected to one side of the moving plate (8). An angle meter (10) is fixedly connected to the right side of the front surface of the rotating housing (5). A camera (11) is fixedly connected to the right side of the upper surface of the rotating housing (5).

2. The electrode length measuring device for a calcium carbide furnace according to claim 1, characterized in that: The lifting mechanism includes a fixed housing (12), which is fixedly connected to the lower surface of the mounting plate (1). First threaded rods (14) are rotatably mounted on the left and right sides of the fixed housing (12) via first bearings (13). Lifting sleeves (15) are threaded onto both first threaded rods (14). A connecting rod (16) is fixedly connected to one side of each lifting sleeve (15). One end of the connecting rod (16) extends out of the fixed housing (12) and is fixedly connected to the lifting plate (2). The fixed housing (12) is provided with a mounting plate for the connecting rod. (16) A movable slot (17) is fixedly connected to the inner lower surface of the fixed housing (12), a first motor (18) is fixedly connected to the output end of the first motor (18), a drive shaft (19) is fixedly connected to one end of the drive shaft (19), a first gear (20) is fixedly connected to one end of the drive shaft (19), a second gear (21) that meshes with the first gear (20) is fixedly sleeved on the left first threaded rod (14), and a transmission wheel (22) is fixedly sleeved on both first threaded rods (14), and the two transmission wheels (22) are connected by a transmission chain (23).

3. The electrode length measuring device for a calcium carbide furnace according to claim 1, characterized in that: The adjustment mechanism includes a connecting housing (24), which is fixedly connected to the lower surface of the lifting plate (2). An electric telescopic rod (25) is fixedly connected inside the connecting housing (24). A connecting column (26) is fixedly connected to the telescopic end of the electric telescopic rod (25). A connecting frame (28) is rotatably connected to the connecting column (26) via a rotating shaft (27). A T-shaped slider (29) is fixedly connected to the upper surface of the connecting frame (28). A T-shaped groove (30) for sliding of the T-shaped slider (29) is provided on the lower surface of the rotating housing (5).

4. The electrode length measuring device for a calcium carbide furnace according to claim 1, characterized in that: The telescopic mechanism includes a second motor (31), which is fixedly connected to the left side of the rotating housing (5). The output end of the second motor (31) is fixedly connected to a second threaded rod (32). The second threaded rod (32) extends into the rotating housing (5) through a second bearing (33) and is threadedly connected to a movable sleeve rod (34). A limit block (35) is fixedly connected to the upper surface of the movable sleeve rod (34). A limit groove (36) for sliding of the limit block (35) is provided on the inner wall of the rotating housing (5). One end of the movable sleeve rod (34) is connected to a pressure sensor (7).

5. The electrode length measuring device for a calcium carbide furnace according to claim 4, characterized in that: A protective cover (37) is fixedly connected to the left side of the rotating housing (5) and to the outside of the second motor (31).

6. The electrode length measuring device for a calcium carbide furnace according to claim 1, characterized in that: The right side of the lifting plate (2) is provided with a slot (38).

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