Electrode measurement system based on steel drill method

Abstract

The application provides a kind of based on steel drill method electrode measurement system, including walking track, bottom car component, upper car component, drill rod propulsion mechanism and control device, walking track is close to ore furnace setting;Bottom car component includes bottom car structure, walking drive, walking wheel and parking mechanism, walking wheel is installed on the bottom car structure, cooperate walking track, walking drive is installed on the bottom car structure, parking mechanism is installed on the bottom car structure;Upper car component includes upper car structure, precision push rod and rotating mechanism, precision push rod is installed on the upper car structure, rotating mechanism is used to drive upper car structure relative to bottom car component rotation;Drill rod propulsion mechanism includes large arm structure and propulsion assembly, large arm structure is pivotally connected the output end of push rod, propulsion assembly drives drill rod telescopic;Control device is used to control bottom car component, upper car component and drill rod propulsion mechanism action, data information is collected and is analyzed and calculated.The application can be on-line to the depth of submerged arc furnace electrode fast, efficient, accurate and automatic measurement.

Description

Technical Field

[0001] This invention generally relates to the field of ore production technology, and more specifically, to a system capable of rapidly, efficiently, accurately, and automatically measuring the depth of electrodes in an electric arc furnace online. Background Technology

[0002] Calcium carbide is the "starting raw material" for organic synthesis industry, PVC industry chain and new energy materials. It is also a strategic product in high-energy-consuming chemical industry and is irreplaceable for industry, people's livelihood and infrastructure.

[0003] Calcium carbide production uses a closed-loop submerged arc furnace as its core equipment, with the electrode being the key component for achieving electrical energy input, arc heating, and energy regulation. Industrial production commonly employs a continuous self-baking electrode structure. During production, the lower end of the electrode is constantly exposed to a high-temperature molten pool environment above 1700℃, undergoing continuous arc erosion and physical consumption. The upper part softens, melts, volatilizes, and sinters through the continuous addition of electrode paste, creating a dynamic "upper replenishment, lower consumption" working state. The effective length of the electrode and its depth into the furnace directly determine the thermal field distribution within the furnace, arc stability, three-phase power balance, and furnace lining life. These are core process parameters ensuring calcium carbide yield, purity, power consumption, and safe production.

[0004] Therefore, the depth of the three-phase electrodes needs to be measured and controlled in calcium carbide smelting. Currently, electrode measurement is done manually, relying on experience. A steel rod is inserted at an angle of 28-30 degrees through the electrode detection port of the electric furnace to reach the electrode. The electrode size is then determined manually using a plenum angle calculation table. Measurements are taken during load reduction or furnace shutdown, and typically, one electrode requires 2-3 measurements for confirmation. However, manual measurement has the following significant drawbacks:

[0005] 1. In actual production, due to factors such as harsh on-site environment, high operational risks, and high labor intensity, the frequency of manual measurement of electrode length is extremely low, making continuous and high-frequency monitoring impossible. Since electrode consumption is a continuous dynamic process, the electrode length has changed significantly between two measurements, resulting in a serious lag in the measurement data. This makes it impossible to reflect the real-time ablation and length changes of the electrode in a timely manner, which can easily lead to excessive or insufficient electrode pressure release due to untimely monitoring, thereby causing production and safety hazards such as furnace condition fluctuations, electrode breakage, and equipment burnout.

[0006] 2. The working end of the electrode is buried in the furnace charge and high-temperature melt, and cannot be directly seen or touched. Manual measurement cannot accurately determine the amount of ablation and the effective length, resulting in large human error and poor consistency.

[0007] 3. The environment at the calcium carbide furnace site is harsh, with high temperatures, dust, flue gas, material spraying, material collapse, and strong electromagnetic interference. Manually approaching the electrode area for measurement can easily lead to safety accidents such as burns, scalds, poisoning, and mechanical injuries.

[0008] 4. High labor intensity and low efficiency: Manual measurement is cumbersome, time-consuming and labor-intensive, making it difficult to achieve frequent and continuous monitoring, and failing to meet the requirements of automated and intelligent production;

[0009] 5. Relying on operator experience, the stability is poor. The electrode pressing and releasing and raising and lowering rely entirely on manual experience and judgment, which can easily lead to electrodes that are too long or too short, resulting in unbalanced three-phase current, furnace condition fluctuations, soft or hard electrode breakage, equipment burnout, or even unplanned furnace shutdown.

[0010] 6. It cannot achieve data-driven, closed-loop control. Manual measurement cannot form continuous and reliable data records, lacks remote transmission, alarm, and automatic control functions, and is difficult to link with the DCS system to achieve closed-loop control of electrode length.

[0011] Currently, the calcium carbide furnace industry lacks a universally accepted solution for highly reliable, high-precision, and maintenance-free online electrode length measurement. Most mainstream plants employ a combination of "electrical parameter calculation + manual experience correction." Existing technologies all have significant shortcomings: mechanical methods are offline, optical methods are susceptible to contamination, electrical methods are inaccurate, and manual methods are unreliable. Furthermore, electrode length measurement technology struggles to meet the online, real-time, high-precision, and highly reliable monitoring requirements of closed calcium carbide furnaces, hindering the automation, intelligentization, and safe and stable operation of calcium carbide production.

[0012] Therefore, developing technologies and devices that can adapt to extreme working conditions and achieve accurate online measurement of electrode length has become a technical problem that the industry urgently needs to solve, as well as a clear requirement and pain point that needs to be addressed for the industry's technological upgrading. Summary of the Invention

[0013] A primary objective of this invention is to overcome at least one of the deficiencies of the prior art and provide a steel rod electrode measurement system capable of rapidly, efficiently, accurately, and automatically measuring the depth of electrodes in an electric arc furnace online.

[0014] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0015] According to one aspect of the present invention, a steel rod electrode measurement system is provided for online measurement of electrode depth in a submerged arc furnace, wherein the submerged arc furnace is provided with a measuring window, characterized in that the steel rod electrode measurement system comprises:

[0016] A travel track is provided close to the electric arc furnace;

[0017] The undercarriage assembly includes an undercarriage structure, a driving drive, traveling wheels, and a parking mechanism. The traveling wheels are mounted on the undercarriage structure and cooperate with the traveling track. The driving drive is mounted on the undercarriage structure and is connected to the traveling wheels. The parking mechanism is mounted on the undercarriage structure and is used to prevent the equipment from shifting along the traveling track due to excessive reaction force during the drill rod probing operation.

[0018] The upper vehicle component includes an upper vehicle structure, a precision push rod, and a rotating mechanism. The precision push rod is mounted on the upper vehicle structure and includes a push rod drive and a push rod. The rotating mechanism is used to drive the upper vehicle structure to rotate relative to the undercarriage assembly.

[0019] A drill rod propulsion mechanism includes a boom structure and a propulsion assembly. One end of the boom structure is pivotally connected to the upper vehicle structure, and the other end is pivotally connected to the output end of the push rod. The propulsion assembly is mounted on the boom structure and is used to push the drill rod to extend or retract.

[0020] The control device is used to control the movement of the undercarriage assembly, the upper carriage component and the drill rod propulsion mechanism. The control device is also used to collect data information and perform analysis and calculation to obtain the depth value of the electrode.

[0021] During online electrode depth measurement, the undercarriage assembly moves along the travel track. Upon reaching its destination, the parking mechanism activates to fix the undercarriage structure. The rotating mechanism then activates, causing the upper carriage component and boom structure to rotate. Upon reaching its destination, the push rod drive pushes the push rod to move, bringing the drill rod propulsion mechanism to the test state. The propulsion assembly then activates, pushing the drill rod through the measuring window to quickly enter and exit the submerged arc furnace. The control device, based on feedback information after the drill rod enters the submerged arc furnace, confirms whether the drill rod has struck the electrode. If it has not struck the electrode, the control device drives the precision push rod to perform step adjustments until the information indicates that it has struck the electrode. If it has struck the electrode, the control device drives the precision push rod to perform reverse step adjustments until the information indicates that it has not struck the electrode. The control device calculates the electrode depth based on the last two data points.

[0022] According to one embodiment of the present invention, the running track includes a track base plate, a track connecting plate and two rails, the two rails being installed parallel to each other on the track base plate and connected to each other by the track connecting plate.

[0023] According to one embodiment of the present invention, the traveling wheel includes two driving wheels and two driven wheels arranged symmetrically on the left and right sides, and the driving wheels and the driven wheels cooperate with the traveling track.

[0024] According to one embodiment of the present invention, the parking mechanism includes a telescopic cylinder, a rocker arm, a rotating part, and a stop. The cylinder seat of the telescopic cylinder is mounted on the undercarriage structure. The piston of the telescopic cylinder is pivotally connected to one end of the rocker arm. The other end of the rocker arm is drively connected to the rotating part. Both ends of the rotating part are rotatably mounted on the undercarriage structure. The rotating part is connected to the stop. The stop cooperates with a positioning block fixedly disposed near the travel track.

[0025] According to one embodiment of the present invention, a hinge seat is provided at one end of the upper vehicle component, and the upper arm structure is connected to the hinge seat by a pin.

[0026] According to one embodiment of the present invention, the propulsion assembly includes a propulsion drive, a slide rail, and a quick-release push block. The propulsion drive is mounted on the boom structure, the slide rail is mounted on the boom structure and is drive-connected to the propulsion drive, and the quick-release push block is slidably mounted on the slide rail for mounting the chisel.

[0027] According to one embodiment of the present invention, the propulsion assembly further includes a guiding mechanism, which is installed at the end of the boom structure opposite to the propulsion drive and is used to guide the extension and retraction of the drill rod.

[0028] According to one embodiment of the present invention, the propulsion assembly further includes an intermediate support slider, which is slidably mounted on the slide rail for guiding the chisel.

[0029] According to one embodiment of the present invention, when the drill rod encounters resistance after a short insertion, the control device determines that there is a crust in the submerged arc furnace, and then initiates a crust-breaking operation.

[0030] According to one embodiment of the present invention, the control device includes a force sensor disposed on the propulsion assembly, a first encoder disposed on the propulsion assembly, a second encoder disposed on the upper structure, a laser displacement sensor disposed on the upper structure, a position sensor disposed on the lower structure, a third encoder disposed on the push rod drive, and a magnetic switch disposed on the parking mechanism. The force sensor transmits and detects the force during the distance measurement process of the drill rod. The first encoder is used to detect the extension and retraction length of the drill rod. The second encoder is used to detect the angle information of the upper component and the drill rod propulsion mechanism relative to the lower structure. The laser displacement sensor and the position sensor are used to detect the position of the lower structure. The third encoder is used to detect the angle information of the push rod push. The magnetic switch on the parking mechanism is used to monitor and identify the opening and closing state of the parking mechanism.

[0031] As can be seen from the above technical solution, the advantages and positive effects of the steel rod electrode measurement system of the present invention are as follows:

[0032] The chassis assembly of this invention travels to its position on the track and is prepared in place by a rotating mechanism and a precision push rod. The propulsion assembly drives the drill rod to operate automatically. The entire process is controlled by a control device, which analyzes and sends commands online, and finally calculates the electrode depth value in the submerged arc furnace. This enables rapid, efficient and accurate automatic measurement of the electrode depth in the submerged arc furnace online. Attached Figure Description

[0033] Various objects, features, and advantages of the invention will become more apparent from the following detailed description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0034] Figure 1 This is a schematic diagram illustrating the working state of the electrode measurement system based on the steel rod method of the present invention in an exemplary embodiment.

[0035] Figure 2 This is a schematic diagram of the structure of the electrode measurement system based on the steel rod method of the present invention, shown in an exemplary embodiment.

[0036] Figure 3 This is a top view comparison diagram of the walking and working states of the electrode measurement system based on the steel rod method of the present invention, as shown in an exemplary embodiment.

[0037] Figure 4 This is a side view comparison diagram of the walking and working states of the electrode measurement system based on the steel rod method of the present invention, as shown in an exemplary embodiment.

[0038] Figure 5 This is a schematic diagram of the structure of the walking track in the electrode measurement system based on the steel rod method of the present invention, as shown in an exemplary embodiment.

[0039] Figure 6 This is a schematic diagram of the structure of the undercarriage assembly in the electrode measurement system based on the steel rod method of the present invention, as shown in an exemplary embodiment.

[0040] Figure 7 This is a schematic diagram of the parking mechanism in the electrode measurement system based on the steel rod method of the present invention, as shown in an exemplary embodiment.

[0041] Figure 8 This is a schematic diagram of the structure of the upper component in the electrode measurement system based on the steel rod method of the present invention, as shown in an exemplary embodiment.

[0042] Figure 9This is a schematic diagram of the structure of the drill rod propulsion mechanism in the electrode measurement system based on the steel drill method of the present invention, as shown in an exemplary embodiment.

[0043] Figure 10 This is a schematic diagram illustrating the workflow of the present invention's electrode measurement system based on the steel rod method, as shown in an exemplary embodiment. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0045] In the following description of various examples of the invention, reference is made to the accompanying drawings, which form part of the invention, and in which different exemplary structures, systems, and steps that can implement various aspects of the invention are shown by way of example. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the invention. Furthermore, while the terms “top,” “bottom,” “front,” “rear,” “side,” etc., may be used in this specification to describe various exemplary features and elements of the invention, these terms are used herein only for convenience, such as the orientation according to the examples shown in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the invention.

[0046] An embodiment of the present invention provides an electrode measurement system based on the steel rod method, used for online measurement of electrode depth in submerged arc furnace production, such as... Figure 1 As shown, electrode 7 is positioned above the electric arc furnace 6, and the electric arc furnace 6 is equipped with a measuring window 8. The electric arc furnace 6 can be an calcium carbide furnace.

[0047] like Figure 2 As shown, in this example, the electrode measurement system based on the steel rod method includes a traveling track 1, a base carriage assembly 2, an upper carriage component 3, a rod propulsion mechanism 4, and a control device. Figure 3 and Figure 4As shown, comparing the walking and working states of the steel rod electrode measurement system, the position and angle of the rod propulsion mechanism 4 differ. The steel rod electrode measurement system includes a parking position, a measurement preparation position, and a measurement position. In the parking position, the boom structure 41 forms a fixed angle with the walking track 1 (saving space in front of the furnace during parking). In the measurement preparation and measurement positions, the boom structure 41 is parallel to the walking track 1. In the measurement preparation position, the boom structure 41 forms a parking angle with the upper carriage component 3, and in the measurement position, it forms a working angle with the upper carriage component 3. The parking angle is the lower limit (minimum) of the detection angle, and the working angle is the upper limit (maximum) of the detection angle when the precision push rod 32 reaches its maximum stroke.

[0048] like Figure 5 As shown, the traveling track 1 is located near the electric arc furnace 6, and can be installed on the ground or on a frame. The traveling track 1 includes a track base plate 11, a track connecting plate 12, and two steel rails 13. The two steel rails 13 are installed parallel to each other on the track base plate 11, and the two steel rails 13 are connected to each other through the track connecting plate 12.

[0049] like Figure 6 As shown, the chassis assembly 2 includes a chassis structure 21, a travel drive 22, travel wheels, and a parking mechanism 25. The travel wheels are mounted on the chassis structure 21 and cooperate with the travel track 1. The travel drive 22 is mounted on the chassis structure 21 and is connected to the travel wheels via a transmission mechanism. The parking mechanism 25 is mounted on the chassis structure 21 and is used to prevent excessive reaction force from the chassis structure 21 from causing displacement of the equipment along the travel track 1.

[0050] In this embodiment, the traveling wheels include two driving wheels 23 and two driven wheels 24 symmetrically arranged on the left and right sides, and the driving wheels 23 and driven wheels 24 cooperate with the traveling track 1. In this embodiment, as shown... Figure 7As shown, the parking mechanism 25 includes a telescopic cylinder 251, a rocker arm 252, a rotating part 253, and a stop 254. The rocker arm 252, the rotating part 253, and the stop 254 are welded together as a whole. The cylinder seat of the telescopic cylinder 251 is mounted on the undercarriage structure 21. The piston of the telescopic cylinder 251 is pivotally connected to one end of the rocker arm 252. The other end of the rocker arm 252 passes through the welded rotating part 253. Both ends of the rotating part 253 are rotatably mounted on the undercarriage structure 21. The rotating part 253 is connected to the stop 254. The stop 254 cooperates with the positioning block 9 fixedly disposed near the travel track 1. The positioning block 9 is fixedly installed at the corresponding position of the equipment parking position. After the undercarriage structure 21 moves into position, the telescopic cylinder 251 is activated. Since the rotating part 253 is rotatably mounted on the undercarriage structure 21, the swing arm 252 drives the stop frame 254 to flip through the rotating part 253. After the stop frame 254 flips, it engages with the positioning block 9, thereby limiting the displacement of the undercarriage structure 21 relative to the travel track 1. The rotating part 253 may include components such as a rotating shaft, bearings, and self-lubricating bushings, thereby realizing the above-mentioned transmission action. In this embodiment, the undercarriage structure 21 is also provided with a rotating seat 26 to cooperate with the rotation of the upper carriage component 3.

[0051] like Figure 8 As shown, the upper vehicle component 3 includes an upper vehicle structure 31, a precision push rod 32, and a rotating mechanism 33. The precision push rod 32 is mounted on the upper vehicle structure 31 and includes a push rod drive and a push rod. The rotating mechanism 33 cooperates with the rotating seat 26 to drive the upper vehicle structure 31 to rotate relative to the undercarriage assembly 2.

[0052] In this embodiment, one end of the upper vehicle component 3 is provided with a hinge seat 34, and the boom structure 41 is connected to the hinge seat 34 by a pin.

[0053] like Figure 9 As shown, the drill bit propulsion mechanism 4 includes a boom structure 41 and a propulsion assembly 42. One end of the boom structure 41 is pivotally connected to the hinge seat 34 of the upper structure 31, and the other end is pivotally connected to the output end of the push rod. The propulsion assembly 42 is mounted on the boom structure 41 and is used to push the drill bit 5 to extend and retract.

[0054] In this embodiment, the boom structure includes a front connecting seat 411 and a rear connecting seat 412, wherein the front connecting seat 411 is connected to the hinge seat 34, and the rear connecting seat 412 is connected to the precision push rod 32. In this embodiment, the propulsion assembly 42 includes a propulsion drive 421, a slide rail 422, and a quick-release push block 423. The propulsion drive 421 is mounted on the boom structure 41, the slide rail 422 is mounted on the boom structure 41 and is drive-connected to the propulsion drive 421, and the quick-release push block 423 is slidably mounted on the slide rail 422 for mounting the chisel 5. In this embodiment, the propulsion assembly 42 also includes a guide mechanism 424, which is mounted on the end of the boom structure 41 opposite to the propulsion drive 421 for guiding the extension and retraction of the chisel 5. In this embodiment, the propulsion assembly 42 also includes an intermediate support slider 425, which is slidably mounted on the slide rail 422 for slidingly guiding the chisel 5.

[0055] In this embodiment, the control device is used to control the movement of the undercarriage assembly 2, the upper carriage component 3 and the drill rod propulsion mechanism 4. The control device is also used to collect data information and perform analysis and calculation to obtain the depth value of the electrode.

[0056] In this embodiment, as Figure 10 As shown, when measuring the depth of electrode 7 online, the undercarriage assembly 2 moves along the travel track 1. During the process from the parking position to the measurement preparation position, the rotating mechanism 33 is activated, which drives the upper vehicle assembly 3 and the boom structure 41 to rotate. When it reaches the measurement preparation position, the upper vehicle assembly 3 and the boom structure 41 are parallel to the travel track 1 and face the measuring window 8. The device continues to move to the measurement position. Upon arrival, the parking mechanism 25 activates, fixing the undercarriage structure 21. After reaching the position, the precision push rod 32 moves to the predetermined stroke, causing the drill rod propulsion mechanism 4 to reach the test state. The propulsion assembly 42 then activates, pushing the drill rod 5 through the measuring window 8 to quickly enter and exit the electric arc furnace 6. The control device confirms whether the drill rod 5 has pierced the electrode 7 based on the feedback information after entering the electric arc furnace 6. If it has not pierced the electrode 7, the precision push rod 32 is activated to perform step adjustments until the information indicates that it has pierced the electrode 7. If it has pierced the electrode 7, the precision push rod 32 is activated to perform reverse step adjustments until the information indicates that it has not pierced the electrode 7. The control device calculates the depth of the electrode 7 based on the last two data points.

[0057] In this embodiment, when the control device detects a crust formation in the submerged arc furnace 6 after the drill rod 5 has penetrated a short distance and encountered resistance, it initiates a crust-breaking operation. The crust-breaking operation is performed by the drill rod 5. According to the measurement position, the driving power is increased to raise the driving speed. The drill rod 5 is used to impact the submerged arc furnace 6 a maximum of three times consecutively. If crust breaking is still not achieved, the system exits the measurement position, returns to the measurement preparation position, closes the measurement door, adjusts, and then restarts the crust-breaking operation after a period of time. In this embodiment, the drill rod 5 can be a steel drill.

[0058] In this embodiment, the control device includes a force sensor mounted on the propulsion assembly 42, a first encoder mounted on the propulsion assembly 42, a second encoder mounted on the upper structure 31, a laser displacement sensor mounted on the upper structure 31, a position sensor mounted on the lower structure 21, a third encoder mounted on the push rod drive, and a magnetic switch mounted on the telescopic cylinder 251 of the parking mechanism 25. The force sensor transmits and detects the force on the chisel 5 during the distance measurement process. The first encoder detects the extension length of the chisel 5. The second encoder detects the angle information of the upper component 3 and the chisel propulsion mechanism 4 relative to the lower structure 21. The laser displacement sensor and the position sensor detect the position of the lower structure 21 and jointly determine the position to ensure accurate positioning. The third encoder detects the angle information of the push rod. The magnetic switch on the telescopic cylinder 251 of the parking mechanism 25 monitors and identifies the opening and closing state of the telescopic cylinder 251.

[0059] The control device includes a main interface for operation, which typically includes:

[0060] Platform status indicator area: Displays status icons for system communication, DCS furnace status, and drill rods.

[0061] Measurement Information: Displays the result of a single measurement.

[0062] Trend curve area: Displays the position of the drill bit and the motor curve.

[0063] Navigation menu: Access manual page, historical data, I / O, alarm screen.

[0064] One-click measurement: Start measurement.

[0065] Parking: Return to the parking space.

[0066] As can be seen from the above technical solution, the advantages and positive effects of the steel rod electrode measurement system of the present invention are as follows:

[0067] The chassis assembly 2 of this invention travels to its position on the track 1 and is prepared to be in place by the rotating mechanism 33 and the precision push rod 32. The push assembly 42 pushes the drill rod 5 to operate automatically. The entire process is controlled by the control device, which analyzes and sends instructions online. Finally, the depth value of the electrode 7 in the submerged arc furnace 6 is calculated, so that the depth of the electrode 7 in the submerged arc furnace 6 can be measured quickly, efficiently and accurately online.

[0068] The present invention adopts the following technical solution:

[0069] 1. A mechanical steel rod method is used for measurement. The steel rod is inserted into the furnace at a set angle, and the rod quickly passes through the material surface and enters the liquid surface. The angle value is calculated by software to correspond to the electrode length. If the rod does not touch the electrode shell at that angle, it means that the electrode of the corresponding length at that angle has been consumed; if the rod touches the electrode shell at that angle, it means that the electrode of the corresponding length at that angle has not been consumed. The electrode length value can be obtained through a clamping method. This method is more intuitive and accurate.

[0070] 2. By remotely and automatically controlling the electrode measuring equipment, personnel do not need to enter the dangerous area on the second floor, thus avoiding safety risks when measuring electrode length.

[0071] 3. The entire machine's drill rod is coated with insulating high-temperature resistant ceramic. The drill rod is insulated from the boom, the boom is insulated from the upper carriage assembly, and the bottom carriage is insulated from the track. Through multiple insulations, live measurement can be achieved without power outages, furnace shutdowns, or load reductions, without affecting production output.

[0072] 4. When the equipment is working, it moves forward along the track to the detection position and then probes into the furnace to take measurements. After the measurement is completed, it retreats to the parking position. The single furnace entry detection time is short, and it can work stably for a long time in high temperature, high dust, and strong flue gas environments.

[0073] 5. Electrode length can be measured at any time during the production process, providing convenient, fast, and accurate data, solving the problem of data lag, and enabling remote data transmission, storage, and linkage control. It can be connected to a DCS system to achieve closed-loop control of electrode length.

[0074] The present invention also has the following technical effects:

[0075] 1. The entire machine can be remotely operated with one button, including automatic measurement door opening and closing, equipment positioning, parking, and probe insertion and retrieval. The entire process of a single-point single-test takes less than 1 minute, and the probe stay time in the furnace (from probe insertion to extraction) is only about 7 seconds. Compared with the existing manual method, which requires more than 10 minutes for the entire process of load reduction or power outage, manual measurement (transporting the probe, opening the test port, inserting the probe for measurement, retrieving the probe, closing the furnace door), and resuming production, this equipment can complete the measurement during normal production, greatly reducing the production loss caused by manual measurement.

[0076] 2. The entire machine is electrically driven, with low power consumption of less than 10KW, saving energy. The machine can achieve 25-42° insertion into the furnace body for measurement. The 40mm diameter drill rod is made of high-temperature resistant alloy and coated with high-temperature resistant ceramic. It is thicker and more durable than the 25mm diameter drill rod commonly used for manual measurement. It can effectively insulate and prevent deformation, increasing safety while reducing inaccurate measurement data caused by drill rod deformation.

[0077] 3. The robot's positional accuracy is ensured by using a track, proximity switches, and laser displacement sensors. The parking brake mechanism effectively prevents inaccurate measurements caused by deviation. Various encoders and sensors detect the posture and movement data of the equipment. Finally, the depth of the drill bit into the furnace is calculated through big data analysis. The data is accurate and reliable, with a measured error within 50mm.

[0078] 4. By acquiring data through numerous measurement experiments and establishing a big data model, the automatic measurement results can be analyzed to accurately determine whether an electrode has been detected in complex situations.

[0079] 5. The measurement results are output as reports and curves, allowing production personnel to intuitively judge the consumption status and stability of the electrodes during the production process. The electrode length can be predicted through model simulation, thereby providing feedback to calculate the angle range of this measurement, quickly locking in the detection angle range, and eliminating manual input calibration steps.

[0080] 6. Interconnected with the intelligent smelting system, the data detected by the electrode measuring robot is processed and uploaded to the intelligent smelting system, thereby automatically judging the electrode status and forming a closed-loop automatic control with the electrode pressing and releasing system. The system intelligently controls the depth of electrode insertion into the furnace, thereby achieving three-phase balance, optimizing production parameters, and providing important guidance for on-site production.

[0081] 7. Data can be connected to the on-site control room, providing real-time, rapid, and effective results. Equipped with fully automated programs, it uses big data models to achieve functions such as furnace and ore judgment, equipment status self-check, and automatic setting of measurement angles and torque strokes. It can preset detection times and perform timed and fixed-point automatic measurements without manual operation. Measurement results can be analyzed and uploaded at any time.

[0082] Those skilled in the art should understand that the specific structures and processes shown in the above detailed embodiments are merely exemplary and not restrictive. Furthermore, those skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions or make other modifications, all of which fall within the scope of this invention.

Claims

1. A steel rod electrode measurement system for online measurement of electrode depth in a submerged arc furnace, wherein the submerged arc furnace is equipped with a measuring window, characterized in that... The electrode measurement system based on the steel rod method includes: A travel track is provided close to the electric arc furnace; The undercarriage assembly includes an undercarriage structure, a driving drive, traveling wheels, and a parking mechanism. The traveling wheels are mounted on the undercarriage structure and cooperate with the traveling track. The driving drive is mounted on the undercarriage structure and is connected to the traveling wheels. The parking mechanism is mounted on the undercarriage structure and is used to prevent the equipment from shifting along the traveling track due to excessive reaction force during the drill rod probing operation. The upper vehicle component includes an upper vehicle structure, a precision push rod, and a rotating mechanism. The precision push rod is mounted on the upper vehicle structure and includes a push rod drive and a push rod. The rotating mechanism is used to drive the upper vehicle structure to rotate relative to the undercarriage assembly. A drill rod propulsion mechanism includes a boom structure and a propulsion assembly. One end of the boom structure is pivotally connected to the upper vehicle structure, and the other end is pivotally connected to the output end of the push rod. The propulsion assembly is mounted on the boom structure and is used to push the drill rod to extend or retract. The control device is used to control the movement of the undercarriage assembly, the upper carriage component and the drill rod propulsion mechanism. The control device is also used to collect data information and perform analysis and calculation to obtain the depth value of the electrode. During online electrode depth measurement, the undercarriage assembly moves along the travel track. Upon reaching its destination, the parking mechanism activates to fix the undercarriage structure. The rotating mechanism then activates, causing the upper carriage component and boom structure to rotate. Upon reaching its destination, the push rod drive pushes the push rod to move, bringing the drill rod propulsion mechanism to the test state. The propulsion assembly then activates, pushing the drill rod through the measuring window to quickly enter and exit the submerged arc furnace. The control device, based on feedback information after the drill rod enters the submerged arc furnace, confirms whether the drill rod has struck the electrode. If it has not struck the electrode, the control device drives the precision push rod to perform step adjustments until the information indicates that it has struck the electrode. If it has struck the electrode, the control device drives the precision push rod to perform reverse step adjustments until the information indicates that it has not struck the electrode. The control device calculates the electrode depth based on the last two data points.

2. The electrode measurement system based on the steel rod method according to claim 1, characterized in that: The running track includes a track base plate, a track connecting plate, and two steel rails. The two steel rails are installed parallel to each other on the track base plate and are connected to each other through the track connecting plate.

3. The electrode measurement system based on the steel rod method according to claim 1, characterized in that: The traveling wheel includes two driving wheels and two driven wheels arranged symmetrically on the left and right sides, and the driving wheels and the driven wheels cooperate with the traveling track.

4. The electrode measurement system based on the steel rod method according to claim 3, characterized in that: The parking mechanism includes a telescopic cylinder, a rocker arm, a rotating part, and a stop. The cylinder seat of the telescopic cylinder is mounted on the undercarriage structure. The piston of the telescopic cylinder is pivotally connected to one end of the rocker arm, and the other end of the rocker arm is drively connected to the rotating part. Both ends of the rotating part are rotatably mounted on the undercarriage structure. The rotating part is connected to the stop, and the stop cooperates with a positioning block fixedly disposed near the travel track.

5. The electrode measurement system based on the steel rod method according to claim 1, characterized in that: The upper part is provided with a hinge seat at one end, and the boom structure is connected to the hinge seat by a pin.

6. The electrode measurement system based on the steel rod method according to claim 1, characterized in that: The propulsion assembly includes a propulsion drive, a slide rail, and a quick-release push block. The propulsion drive is mounted on the boom structure, the slide rail is mounted on the boom structure and is drive-connected to the propulsion drive, and the quick-release push block is slidably mounted on the slide rail for mounting the chisel.

7. The electrode measurement system based on the steel rod method according to claim 6, characterized in that: The propulsion assembly also includes a guiding mechanism, which is installed at the end of the boom structure opposite to the propulsion drive and is used to guide the extension and retraction of the drill rod.

8. The electrode measurement system based on the steel rod method according to claim 7, characterized in that: The propulsion assembly also includes an intermediate support slider, which is slidably mounted on the slide rail for guiding the chisel.

9. The electrode measurement system based on the steel rod method according to claim 1, characterized in that: When the control device determines that there is a crust in the electric arc furnace when the drill rod is driven into the furnace at a short distance and encounters resistance, it initiates the crust breaking operation.

10. The electrode measurement system based on the steel rod method according to claim 9, characterized in that: The control device includes a force sensor mounted on the propulsion assembly, a first encoder mounted on the propulsion assembly, a second encoder mounted on the upper structure, a laser displacement sensor mounted on the upper structure, a position sensor mounted on the undercarriage structure, a third encoder mounted on the push rod drive, and a magnetic switch mounted on the parking mechanism. The force sensor transmits and detects the force applied during the distance measurement process of the chisel. The first encoder detects the extension and retraction length of the chisel. The second encoder detects the angle information of the upper component and the chisel propulsion mechanism relative to the undercarriage structure. The laser displacement sensor and the position sensor detect the position of the undercarriage structure. The third encoder detects the angle information of the push rod push. The magnetic switch on the parking mechanism monitors and identifies the opening and closing state of the parking mechanism.

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