A current monitoring component and device

Abstract

The present application provides a current monitoring component and device, which is used to solve the problem that there is no structure or device in the prior art that can monitor the current of the feeder tube of the electrode of the ore-fired furnace. The current monitoring component is used to measure the current of the feeder tube, and the current monitoring component includes: at least one shell and at least one cover plate; at least one shell can surround the feeder tube, and each cover plate in at least one cover plate is movably connected to each shell in at least one shell; each shell in at least one shell includes a first accommodating chamber and a second accommodating chamber, and the first accommodating chamber and the second accommodating chamber are arranged adjacent to each other; the first accommodating chamber is used to place a current detection element array for detecting current, and the second accommodating chamber is used to place a circuit board, and the current detection element array is used to send an induced voltage proportional to the current magnitude to the circuit board.

Description

Technical Field

[0001] The present application relates to the technical field of electrometallurgy and calcium carbide, and to a current monitoring component and device. Background Art

[0002] Submerged arc furnace is an industrial electric furnace with huge energy consumption, used for smelting metal oxide ores. Its core structure is a number of vertically mounted cylindrical electrodes. A part of each electrode is buried downward in the charge, and the end of this buried part is called the electrode working end. When working, several electrode working ends are energized to draw arcs to generate high temperatures, achieving the goal of reducing metals or other elements in the ore.

[0003] At present, in the actual work of current monitoring of the feeder tube of the electrode of the submerged arc furnace in the industry, the smelting conditions of the submerged arc furnace are very bad. High temperature, dust, strong electromagnetic interference and frequent upward fire from the electrode gaps have led to the high difficulty of research and development, especially construction and maintenance of the current detection of the electrode feeder tube, which is daunting. Therefore, the application in this area is still in a blank state. There is currently no structure or device that can monitor the current of the feeder tube of the electrode of the submerged arc furnace. Therefore, there is a problem in the prior art that there is no structure or device that can monitor the current of the feeder tube of the electrode of the submerged arc furnace. Summary of the invention

[0004] In view of this, the present application provides a current monitoring component and device, which are used to solve the problem that there is no structure or device in the prior art that can monitor the current of the feeder tube of the electrode of the ore-fired furnace.

[0005] An embodiment of the present application provides a current monitoring component for measuring the current of a feeding tube, the current monitoring component comprising: at least one shell and at least one cover plate; the at least one shell can surround the feeding tube, and each of the at least one cover plate is movably connected to each of the at least one shell; each of the at least one shell comprises a first accommodating chamber and a second accommodating chamber, and the first accommodating chamber and the second accommodating chamber are adjacently arranged; the first accommodating chamber is used to place a current detection element array for detecting current, and the second accommodating chamber is used to place a circuit board, and the current detection element array is used to send an induced voltage proportional to the current magnitude to the circuit board.

[0006] Optionally, in an embodiment of the present application, the at least one shell includes: a first shell and a second shell; the first shell and the second shell can surround the feeding tube after being combined.

[0007] Optionally, in an embodiment of the present application, the first shell and the second shell are both hollow semi-circular rings.

[0008] Optionally, in an embodiment of the present application, the at least one cover plate includes: a first cover plate and a second cover plate; the first cover plate cooperates with the first shell, and the second cover plate cooperates with the second shell.

[0009] Optionally, in an embodiment of the present application, the first cover plate and the second cover plate are both semicircular ring plates.

[0010] Optionally, in an embodiment of the present application, the current monitoring assembly further includes a support seat; the support seat is movably connected to the shell, and the support seat is used to support or accommodate the at least one shell.

[0011] Optionally, in an embodiment of the present application, the support seat includes: a first semi-ring body and a second semi-ring body; the first semi-ring body and the second semi-ring body are movably connected.

[0012] Optionally, in an embodiment of the present application, the shell is made of a heat-insulating, flame-retardant and heat-resistant material.

[0013] Optionally, in an embodiment of the present application, the support seat is made of a heat-conductive, flame-retardant and heat-resistant material.

[0014] An embodiment of the present application also provides a current monitoring device, which includes: a monitoring platform and at least one current monitoring component as described above; the monitoring platform communicates with the current monitoring component through signals, the current monitoring component is used to monitor and upload the current value of the feeding tube to the monitoring platform, and the monitoring platform is used to receive and analyze the current value sent by the current monitoring component.

[0015] Optionally, in an embodiment of the present application, the monitoring platform includes a monitoring host; the monitoring host communicates with the current monitoring component, and the monitoring host is used to receive and analyze the current value sent by the current monitoring component.

[0016] Optionally, in an embodiment of the present application, the monitoring platform includes a communication module; the communication module and the monitoring host are electrically connected, and the monitoring host communicates with the current monitoring component through the communication module.

[0017] The present application provides a current monitoring component and device, which includes: at least one shell and at least one cover plate; each cover plate in the at least one cover plate is movably connected to each shell in the at least one shell; each shell in the at least one shell includes a first accommodating chamber and a second accommodating chamber, and the first accommodating chamber and the second accommodating chamber are arranged adjacent to each other; the first accommodating chamber is used to place a current detection element array for detecting current, and the second accommodating chamber is used to place a circuit board, and the current detection element array senses the magnetic field strength information distributed around the feeder tube that is proportional to the magnitude of the current flowing through the feeder tube, and sends it to the circuit board in the form of an induced voltage. By using at least one shell and at least one cover plate to wrap the circuit board that monitors and sends the current of the feeder tube, the circuit board is not damaged by the harsh environment. The current of the feeder tube is indirectly known by electromagnetic induction, and the circuit board is protected by a shell to effectively solve the problem that there is no structure or device in the prior art that can monitor the current of the feeder tube of the electrode of the ore furnace.

[0018] In order to make the above-mentioned objects and advantages of the present application more obvious and easy to understand, the following specifically cites preferred embodiments and describes them in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the structure of a current monitoring component provided in an embodiment of the present application is shown;

[0021] Figure 2 A schematic diagram showing the circuit board structure and module connection relationship provided in an embodiment of the present application is shown;

[0022] Figure 3 A schematic diagram of the structure of a housing and a cover plate provided in an embodiment of the present application is shown;

[0023] Figure 4 A schematic diagram of the structure of the support seat provided in an embodiment of the present application is shown;

[0024] Figure 5 A connection diagram of a current monitoring device provided in an embodiment of the present application is shown;

[0025] Figure 6 This is a principle block diagram of a current detection module according to another implementation of the embodiment of the present application.

[0026] Icons: 101-current monitoring device; 100-current monitoring assembly; 110-shell; 111-first shell; 112-second shell; 113-first accommodating chamber; 114-second accommodating chamber; 120-cover; 121-first cover; 122-second cover; 130-support seat; 131-bolt; 132-first semi-ring; 133-second semi-ring; 140-circuit board; 141-current detection element array; 200-monitoring platform; 210-communication module; 220-monitoring host; 300-electrode; 310-feeding tube; 320-contact element. DETAILED DESCRIPTION

[0027] Some of the terms used in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

[0028] The submerged arc furnace is an industrial electric furnace that consumes huge amounts of energy and is used for the smelting of metal oxide ores. Its core structure consists of multiple vertically mounted cylindrical electrodes.

[0029] The electrode working end, a part of each of the multiple cylindrical electrodes in the submerged arc furnace is buried downward in the charge, and the end of this buried part is called the electrode working end. When working, several electrode working ends are energized to draw arcs to generate high temperatures, achieving the goal of reducing metals or other elements in the ore. To this end, each electrode needs to input a current of up to tens of thousands to hundreds of thousands of amperes into the furnace. These currents are derived from the secondary side output of the submerged arc furnace transformer and are transmitted to the electrode via the short network and the electrode feeder tube. The short network is a group of multiple power transmission copper bars or power transmission copper tubes. The electrode feeder tube is a group of multiple vertical and nearly uniformly arranged copper tubes surrounding the electrode, also often called a vertical tube. The electrode feeder tube is finally connected to the outer casing of the electrode through a high-current contact element or copper tile, achieving the goal of transmitting the output of the transformer to the electrode.

[0030] Contact elements, such as high-current contact elements and copper tiles, are two commonly used conductive copper plates for high-current conduction. They both play the role of contact conduction and are collectively referred to as contact elements below. In actual work, evenly distributed contact elements should share the electrode current as evenly as possible or in a relatively appropriate proportion. This is one of the basic guarantees for the normal and stable progress of the smelting process. On the contrary, if the current of the contact element is significantly larger or smaller than the normal current distribution, it means that the smelting process is abnormal. If the deviation is too large or too small, it means a fault. There are many possible reasons for this abnormality or fault, such as uneven distribution of furnace charge, deviation of the depth of the electrode working end, abnormal electrical contact between the contact element and the electrode shell, etc. Any possible cause should be detected, judged and handled in a timely manner. Otherwise, it will affect the general economic indicators of production at the least, and will cause the abnormal condition of the equipment to further deteriorate and form a fault, and require shutdown for maintenance, replacement of components, etc., which will lead to more losses in production benefits. Since the contact element itself is in complete and tight contact with the electrode shell, it cannot be directly measured, but the current flowing through it comes from the electrode feed tube. Therefore, the detection of the electrode feed tube current is equivalent to the detection of the contact element current.

[0031] The network module, sometimes also called the first communication module, or communication module 1, the network module in the embodiment of the present application is connected to the power module, the central processing module is electrically connected to the network module, and the network module is used to send the current value monitored by the current monitoring component to the monitoring platform.

[0032] In addition, it should be understood that in the description of the embodiments of the present application, “first”,

[0033] Words such as "second" are only used for the purpose of distinguishing descriptions and should not be understood as indicating or implying relative importance or order.

[0034] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product is usually placed when in use. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present application.

[0035] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0036] In conjunction with the accompanying drawings, some implementation methods of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] First embodiment

[0038] See also Figure 1 , Figure 1 The schematic diagram of the structure of the current monitoring component provided by the embodiment of the present application is shown. The embodiment of the present application provides a current monitoring component 100, which is used to measure the current of the feeding tube 310, and the current monitoring component 100 includes: at least one shell 110 and at least one cover plate 120; at least one shell 110 can surround the feeding tube 310, and each cover plate 120 in the at least one cover plate 120 is movably connected with each shell 110 in the at least one shell 110; each shell 110 in the at least one shell 110 includes a first accommodating cavity 113 and a second accommodating cavity 114, and the first accommodating cavity 113 and the second accommodating cavity 114 are arranged adjacent to each other; the first accommodating cavity 113 is used to place a current detection element array 141 for detecting current, and the second accommodating cavity 114 is used to place a circuit board 140, and the current detection element array 141 sends current to the circuit board 140.

[0039] See also Figure 2 , Figure 2 A schematic diagram of the circuit board structure and module connection relationship provided in an embodiment of the present application is shown. It should be noted that a signal conditioning module, a central processing module and a network module are provided on the circuit board 140, and the current detection element array 141, the signal conditioning module, the central processing module and the network module are respectively connected to the power module. The current detection element array 141 is electrically connected to the signal conditioning module, the signal conditioning module is electrically connected to the central processing module, the central processing module is electrically connected to the network module, the current detection element array 141, the signal conditioning module, the central processing module and the network module are all arranged inside the housing 110, and the network module is used to send the current value monitored by the current monitoring component 100 to the monitoring platform.

[0040] Among them, there is a high-temperature flame under the feeding tube 310, which poses a direct threat to the current detection component. At the very least, it causes the internal circuit of the detection module to be unable to measure normally, and at worst, it causes the entire current detection component to burn. Therefore, the shell 110 can be made of heat-insulating, flame-retardant and heat-resistant materials to protect the internal current detection element array 141 and circuit board 140, so that the internal current detection element array 141 and circuit board 140 can monitor the current normally, and convert the current value into a signal to be sent to the monitoring platform or monitoring host.

[0041] See also Figure 3 , Figure 3 The schematic diagram of the structure of the housing and the cover plate provided in the embodiment of the present application is shown. Optionally, in the embodiment of the present application, at least one housing 110 includes: a first housing 111 and a second housing 112; the first housing 111 and the second housing 112 can surround the feeding tube 310 after being combined.

[0042] Among them, optionally, in the embodiment of the present application, the first shell 111 and the second shell 112 are both hollow semicircular rings, and the first shell 111 and the second shell 112 can form a ring after being combined, and the ring can surround or embrace the feeding tube 310. Of course, at least one shell 110 here refers to a shell 110 in which several parts of the shell 110 are combined into a ring. In the embodiment of the present application, it is composed of the first shell 111 and the second shell 112, that is, it is composed of two, and it can also be composed of three, four or five. Therefore, the specific composition and quantity of the shell 110 here should not be understood as a limitation to the embodiment of the present application.

[0043] See also Figure 3 Optionally, in the embodiment of the present application, at least one cover plate 120 includes: a first cover plate 121 and a second cover plate 122 ; the first cover plate 121 cooperates with the first shell 111 , and the second cover plate 122 cooperates with the second shell 112 .

[0044] Among them, optionally, in the embodiment of the present application, the first cover plate 121 and the second cover plate 122 are both semicircular ring plates. Of course, the at least one cover plate 120 here refers to a cover plate 120 that is composed of several parts of the cover plate 120 as a whole. In the embodiment of the present application, it is composed of the first cover plate 121 and the second cover plate 122, that is, it is composed of two, and it can also be composed of three, four or five. Therefore, the specific composition and number of the cover plates here should not be understood as limiting the embodiment of the present application.

[0045] See also Figure 4 , Figure 4Optionally, in the embodiment of the present application, the current monitoring assembly 100 further includes a support base 130 ; the support base 130 is movably connected to the housing 110 , and the support base 130 is used to support or accommodate at least one housing 110 .

[0046] It should be noted that, optionally, in the embodiment of the present application, the support seat 130 includes:

[0047] The first half ring body 132 and the second half ring body 133 are movably connected. The first half ring body 132 and the second half ring body 133 can be connected by bolts 131. The support seat 130 can be made of heat-conducting, flame-retardant and heat-resistant materials.

[0048] Of course, the support seat here refers to a support seat in which several parts of the support seat are combined into a whole. In the embodiment of the present application, it is composed of a first semi-ring body 132 and a second semi-ring body 133, that is, it is composed of two, and can also be composed of three, four or five. Therefore, the specific composition and quantity of the support seat here should not be understood as a limitation on the embodiment of the present application.

[0049] Optionally, in the embodiment of the present application, the shell is made of a heat-insulating, flame-retardant and heat-resistant material, such as bakelite, polyetherimide (PEI, English: Polyetherimide) or PPS plastic (polyphenylene sulfide). PPS plastic (English name: Polyphenylenesulphide) is a thermoplastic special engineering plastic with excellent comprehensive performance, and its outstanding features are high temperature resistance, corrosion resistance and excellent mechanical properties. Therefore, the specific material and type of the shell made of heat-insulating, flame-retardant and heat-resistant materials in the embodiment of the present application should not be understood as a limitation to the embodiment of the present application.

[0050] Optionally, in the embodiment of the present application, the support base is made of a heat-conducting, flame-retardant and heat-resistant material, such as stainless steel, copper or aluminum alloy, etc. Therefore, the specific material and type of the support base made of a heat-conducting, flame-retardant and heat-resistant material in the embodiment of the present application should not be understood as limiting the embodiment of the present application.

[0051] It should be noted that the support seat is made of heat-conducting, flame-retardant and heat-resistant materials, which has the function of resisting the flames and high temperatures under the feeder tube, and can timely conduct the temperature and heat received by the support seat to the feeder tube. Moreover, the feeder tube is made of a material that is easy to conduct heat (such as copper), and there is a circulating water circuit inside it, so that the support seat can more easily conduct the heat it bears to the feeder tube, protecting the shell from only a small amount of heat. In addition, the shell is made of heat-insulating, flame-retardant and heat-resistant materials, and its flame-retardant and heat-insulating properties enable the shell to well isolate the heat of the support seat from the outside, so that the temperature inside the shell is always maintained within a safe temperature range. Therefore, the heat-conducting effect of the support seat and the heat-insulating effect of the shell cooperate with each other, better protecting the circuit board inside the shell to maintain it within a safe temperature range, allowing the circuit board to better monitor the current of the feeder tube.

[0052] Second embodiment

[0053] See also Figure 5 , Figure 5 The connection diagram of the current monitoring device provided in the embodiment of the present application is shown. The embodiment of the present application provides a current monitoring device 101, which includes: a monitoring platform 200 and at least one current monitoring component 100 as above; the monitoring platform 200 communicates with the current monitoring component 100 through signals, the current monitoring component 100 is used to monitor and upload the current value of the feeder tube to the monitoring platform 200, and the monitoring platform 200 is used to receive and analyze the current value sent by the current monitoring component 100.

[0054] See also Figure 5 Optionally, in an embodiment of the present application, the monitoring platform 200 includes a monitoring host 220 ; the monitoring host 220 communicates with the current monitoring component 100 , and the monitoring host 220 is used to receive and analyze the current value sent by the current monitoring component 100 .

[0055] See also Figure 5 Optionally, in an embodiment of the present application, the monitoring platform 200 includes a communication module 210 ; the communication module 210 and the monitoring host 220 are electrically connected, and the monitoring host 220 communicates with the current monitoring component 100 through the communication module 210 .

[0056] For ease of understanding, another implementation of the current monitoring component and the current monitoring device provided in the embodiment of the present application is introduced below. The specific description of another implementation of the current monitoring component and the current monitoring device provided in the embodiment of the present application is as follows:

[0057] Another implementation method of the embodiment of the present application is a special feeder tube current monitoring device that has been successfully developed after nearly ten years of industry and enterprise contact, especially on the basis of a large number of surveys on engineering sites, and has been repeatedly tested. It can withstand the harsh working conditions on site, can measure the current of the electrode feeder tube of the electric arc furnace in real time and provide display, recording, alarm, query and other functions, and has strong practical value.

[0058] In order to realize the current detection of each electrode feeding tube, another implementation method of the embodiment of the present application adopts a modular design solution. Each current feeding tube is equipped with a set of current detection components, and each component includes two modules, namely a current detection module and a special base for supporting and protecting the current detection module. The current detection module realizes functions such as current sensing, identification and elimination of interference signals, standardized processing of signal effective values, and data communication with the host computer. The host computer is a computer installed in the monitoring room and equipped with special monitoring software. The special base for supporting and protecting the current detection module is fixed on the feeding tube, which plays the role of placing the current detection module and performing temperature protection on the detection module. The current detection module is hereinafter referred to as the detection module, and the special base for supporting and protecting the current detection module is hereinafter referred to as the support seat.

[0059] The high temperature or flames at the scene all come from the bottom of the feeder tube, which poses a direct threat to the detection module. At the least, it will cause the internal circuit of the detection module to be unable to measure normally, and at the worst, it will cause the entire module to burn. Therefore, effective measures must be taken to combat high temperature and flames. Another implementation method of the present application adopts three measures to resolve the threat of high temperature and flames, as follows:

[0060] The support seat in another implementation of the embodiment of the present application is made of high temperature resistant, flame retardant and thermally conductive materials and tightly embraces the feeder tube. The high temperature resistant and flame retardant materials can protect the safety of the support seat itself, and the excellent thermal conductivity and tight protection of the feeder tube can achieve the heat transfer from the support seat to the feeder tube. Since all feeder tubes have water cooling passages inside, the tube wall of the feeder tube is always maintained at a relatively low safety temperature. Therefore, the heat of the support seat is absorbed by the feeder tube, and the temperature of the support seat is also maintained within a relatively low safety temperature range.

[0061] The detection module of another implementation of the embodiment of the present application is equipped with a shell, and its basic function is to seal the circuit part of the detection module. In addition to being flame-retardant and high-temperature resistant, the shell also has excellent thermal insulation performance. Excellent thermal insulation performance means that there is a large thermal resistance between the support base and the internal circuit of the detection module. When the support base is subjected to high-temperature radiation or flame burning, even if the temperature of the support base is high, its heat is difficult to be transmitted to the internal circuit through the shell of the detection module, thereby limiting the temperature rise of the internal circuit of the detection module.

[0062] Another implementation of the embodiment of the present application is that the internal current detection element adopts a redundant configuration and multi-point layout. When the detection module is normal, multiple fixed ratios are maintained between the output values ​​of each current detection element. If high temperature or flameout occurs and the above two protection measures fail, the internal current detection element is likely to deteriorate or be destroyed, but the multi-point layout method makes the probability of multiple redundantly configured current detection elements being equally damaged extremely small, which means that detecting whether the ratio between its output values ​​has changed can be used as a basis for whether the current detection element is still normal. Once it is found that this ratio changes beyond the allowable value, the current detection module will send an alarm message to the upper computer, indicating that the detection data is unreliable and the current detection module needs to be repaired or replaced.

[0063] Another implementation method of the embodiment of the present application configures one or more computers with supporting monitoring software installed, also known as a host computer or monitoring host. The host communicates with all current detection modules configured by the system through a communication port. The communication port can be a parallel port or serial port of a computer or various types of extended wired communication ports, or it can be Bluetooth, WIFI, or a wireless communication port obtained by a conversion module such as wired to wireless. Special monitoring software realizes communication, data display, parameter setting, historical data recording and query, abnormal alarm, etc.

[0064] Another embodiment of the present application can use wired power supply or wireless power supply. When wired power supply is used, both AC and DC are acceptable. When wireless power supply is used, the power source is taken from the electromagnetic field around the feeding tube.

[0065] Another beneficial effect of the embodiment of the present application is that it can realize real-time monitoring of the current of the feeder tube, resist high temperature or flame spray, and prevent the abnormal operation of the current detection element. For example, the use of wireless power supply and wireless communication can greatly reduce the workload of installation and maintenance. The monitoring software has data display, parameter setting, historical data recording and query, abnormal alarm, etc., which can meet the needs of the operator of the electric arc furnace for observing and querying the current of the feeder tube, as well as understanding the operating status of the monitoring system itself.

[0066] It should be noted that the current detection element array in another embodiment of the present application uses a plurality of high temperature resistant air core inductor coils of the same material and structure, which are respectively responsible for the induction of the electromagnetic field in different spaces in the housing of the detection module. These coils are subjected to comprehensive calibration of the software and hardware of current detection before leaving the factory to achieve the accuracy required by the calibration. The signal conditioning circuit uses a dedicated anti-aliasing filter circuit and a programmable dedicated large-scale integrated circuit. The core components of the central processing module select a high-performance single-chip microcomputer with a wide temperature range and high anti-interference ability. The communication module uses a low-power wireless transparent transmission module. The power module uses an electromagnetic induction coil to obtain the energy of the electromagnetic field around the feed tube, and after rectification, filtering and voltage stabilization, it is used by the detection module. The above-mentioned current detection element array is placed in the annular space of the detection module, and the signal conditioning module, the central processing module, and the communication module are installed on a dedicated core printed circuit board (Printed Circuit Board, PCB). The output of the current detection element array is connected to the above-mentioned core PCB through a terminal block, and the core PCB board is placed in the housing of the detection module. The monitoring host uses an industrial control computer, and the monitoring software is compiled using configuration software or high-level language. It has the above-mentioned functions of communication, data display, current data recording, historical data query, and abnormal alarm.

[0067] The shell of the detection module is made of bakelite material, which is pressed by a special mold and has the properties of fire retardancy, high temperature resistance and high thermal resistance. The support seat is welded from multiple pieces of copper material according to the design drawings, which is high temperature resistant, non-flammable and has strong thermal conductivity.

[0068] It should be noted that the construction of the entire feeder tube current monitoring device requires the furnace to be shut down to ensure the safety of the construction workers. The construction workers can easily access the feeder tube next to the electrode on the second floor platform of the furnace. The main part of the construction is the installation of the detection components, that is, the installation of the support seat and the detection module. The two parts of the support seat can be first surrounded by the feeder tube and aligned in the vertical direction, and then the two parts are assembled with matching screws and nuts to hold the feeder tube. Then put the two parts of the detection module into the support seat from top to bottom along the outer wall of the feeder tube. Check that the gap of the joint part is within the allowable range, and tighten the screws further if necessary. According to the above procedures, complete the installation of all detection components. After that, the submerged arc furnace can be powered on and operated again.

[0069] See also Figure 6 , Figure 6This is a block diagram of the principle of the current detection module of another embodiment of the present application. As shown in the figure, 1 is a current detection element array, which realizes the linear conversion of the magnetic field strength around the feed tube into the corresponding voltage, and the air-core inductor coil and the linear Hall element are specific implementation means. 2 is a signal conditioning module, which is responsible for hardware anti-interference filtering of the voltage output by the current detection element array and amplitude conditioning of the signal to suit the processing of the subsequent circuit. 3 is a central processing module, the core component of which is a single-chip microcomputer, which is responsible for the identification and elimination of interference signals, standardization of signals, acquisition and processing of data applications and working mode configuration from the monitoring host. 4 is a communication module 1, 5 is a communication module 2, which is connected between the central processing module and the monitoring host 7, and is responsible for the two-way modulation and demodulation of the signal, which can be a wired communication mode or a wireless communication mode; 6 is a power supply module, which provides working power for the current detection element array, the signal conditioning module, the central processing module and the communication module 1, and the power supply module input can be a wired AC power supply, a DC power supply or a wireless induction of space electromagnetic waves. 7 is the monitoring host, which can realize communication with all detection modules, data display, parameter setting, historical data recording and query, abnormal alarm, etc. after installing the special monitoring software.

[0070] It should be noted that the monitoring host with dedicated monitoring software has been functionally verified in the supplier's production workshop before delivery. However, the on-site conditions are different from those in the production workshop, so it is still necessary to conduct functional and performance tests on site, but the main test is the communication function. In the user's production monitoring room, after unpacking, the communication module ( Figure 6 The communication module 2) is inserted into the corresponding communication port of the monitoring host, and then the monitoring host is powered on, and then the matching monitoring program is opened. Under the premise that the ore-arcing furnace is in operation, the various functions and performances of another implementation method of the embodiment of the present application are tested. After all the functions pass, it can be delivered to the user for use.

[0071] The embodiment of the present application provides a current monitoring component and device, which includes: at least one shell and at least one cover plate; each cover plate in the at least one cover plate is movably connected to each shell in the at least one shell; each shell in the at least one shell includes a first accommodating chamber and a second accommodating chamber, and the first accommodating chamber and the second accommodating chamber are arranged adjacent to each other; the first accommodating chamber is used to place a current detection element array for detecting current, and the second accommodating chamber is used to place a circuit board, and the current detection element array senses the magnetic field strength information distributed around the feeder tube that is proportional to the magnitude of the current flowing through the feeder tube, and sends it to the circuit board in the form of an induced voltage. By using at least one shell and at least one cover plate to wrap the circuit board that monitors and sends the current of the feeder tube, the circuit board is not damaged by the harsh environment. The current of the feeder tube is indirectly known by electromagnetic induction, and the circuit board is protected by the shell. The method effectively solves the problem that there is no structure or device in the prior art that can monitor the current of the feeder tube of the electrode of the ore furnace.

[0072] The above are only preferred embodiments of the embodiments of the present application and are not intended to limit the embodiments of the present application. For those skilled in the art, the embodiments of the present application may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A current monitoring component, characterized in that: Used to measure the current of the feeding tube, the current monitoring component comprises: at least one shell and at least one cover plate; the at least one shell can surround the feeding tube, each cover plate of the at least one cover plate is movably connected with each shell of the at least one shell; each shell of the at least one shell comprises a first accommodating cavity and a second accommodating cavity, and the first accommodating cavity and the second accommodating cavity are arranged adjacent to each other; The first accommodating cavity is used to place a current detection element array for detecting current, and the second accommodating cavity is used to place a circuit board, and the current detection element array is used to send an induced voltage proportional to the current to the circuit board; The current monitoring assembly further comprises a support seat, the support seat is movably connected to the shell, the support seat is used to support or accommodate the at least one shell, and the support seat is made of a heat-conducting, flame-retardant and heat-resistant material; Each of the at least one housing is made of a heat-insulating, flame-retardant and heat-resistant material.

2. The current monitoring assembly according to claim 1, characterized in that: The at least one shell includes: a first shell and a second shell; the first shell and the second shell can surround the feeding tube after being combined.

3. The current monitoring assembly according to claim 2, characterized in that: The first shell and the second shell are both hollow semicircular rings.

4. The current monitoring assembly according to claim 2, characterized in that: The at least one cover plate includes: a first cover plate and a second cover plate; the first cover plate and the second cover plate are both semicircular ring plates, the first cover plate cooperates with the first shell, and the second cover plate cooperates with the second shell.

5. The current monitoring assembly according to claim 1, characterized in that: The support seat comprises: a first semi-ring body and a second semi-ring body; the first semi-ring body and the second semi-ring body are movably connected.

6. A current monitoring device, characterized in that: The current monitoring device includes: a monitoring platform and at least one current monitoring component as described in any one of claims 1 to 5; the monitoring platform communicates with the current monitoring component through signals, the current monitoring component is used to monitor and upload the current value of the feeding tube to the monitoring platform, and the monitoring platform is used to receive and analyze the current value sent by the current monitoring component.

7. The current monitoring device according to claim 6, characterized in that: The monitoring platform includes a monitoring host; the monitoring host communicates with the current monitoring component, and the monitoring host is used to receive and analyze the current value sent by the current monitoring component.

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