Monitoring and observing device for electromagnetic iron remover

Abstract

The invention discloses an electromagnetic iron remover monitoring and observing device which comprises a box body, a magnet exciting coil, dielectric sheets, a detection magnetic field probe and a camera, the dielectric sheets are annularly distributed on a dielectric rod, a hole is formed in the center of the dielectric rod, the detection magnetic field probe is embedded in the dielectric rod, the dielectric rod is arranged on the box body in a penetrating mode, and the camera is arranged on the box body. The excitation coil is arranged on the outer wall of the dielectric sheet in a wrapping mode, the excitation coil is arranged in the box body, and the camera is arranged on the top of the box body. The medium center magnetic field is monitored in real time and directly measured through the magnetic field probe, and the measurement precision is greatly improved; the camera can provide a clear medium sheet and a material flowing picture, and the deslagging residual rate is greatly reduced through visual operation. A magnetic field detection probe is embedded in a central hole of a medium rod, and magnetic field data are collected in real time and displayed through a signal transmission box; the camera is prevented from being covered by dust through compressed air blowing, and the continuous working time of the equipment is also synchronously prolonged by optimizing heat dissipation.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial material processing equipment, and particularly relates to a monitoring and observation device for an electromagnetic iron remover. Background Art

[0002] An electromagnetic iron remover is a device that adsorbs ferromagnetic impurities through a strong magnetic field, and is widely used in raw material purification, equipment protection, and resource recovery. It is a device that can generate a strong magnetic field attraction, which can remove ferromagnetic impurities mixed in the material to ensure the safe and normal operation of mechanical equipment such as crushers and grinders in the conveying system. At the same time, it can effectively prevent accidents such as large and long iron pieces scratching the conveying belt, and can also significantly improve the raw material grade. According to its iron unloading method, it can be divided into various working methods such as manual iron unloading, automatic iron unloading, and program-controlled iron unloading. Due to different use occasions and magnetic circuit structures, various series of products have been formed. Iron removers are widely used in industries such as metallurgy, mining, coal preparation plants, power plants, ceramics, glass, cement, building materials, chemical industry, food, and feed processing. In the emerging waste treatment industry, iron removers are also needed to recover iron and steel in waste. Iron removers have been used in large steel enterprises, as well as industries such as metal mines, power plants, light industry, and refractory materials, and have played a huge role. Iron removers are suitable for iron removal in the material transportation of various industries, and can realize continuous iron absorption and rejection.

[0003] In the prior art, electromagnetic iron removers usually adopt the following solutions: Coil cooling and magnetic field calculation: The coil device is cooled by transformer oil, and the magnetic field strength is indirectly calculated through theoretical calculation in the hollow state, and the actual working magnetic field cannot be monitored in real time. Medium and slag discharge design: Medium sheets are placed in the medium barrel to adsorb ferromagnetic impurities, and the slag discharge depends on the preset program to execute automatically, but the residual situation after slag discharge is not visible, which is likely to cause medium blockage or efficiency decline. Visualization defect: The material flow and medium state are completely enclosed, and the operator cannot directly observe the medium adsorption effect or the material passing situation, and the fault diagnosis depends on experience judgment.

[0004] Improvement attempts in the prior art: Some solutions attempt to install observation windows outside the box, but the vision is blurred due to dust coverage; a few use indirect sensors to monitor the magnetic field, but the accuracy is greatly affected by temperature and medium. Core problems in the prior art: The magnetic field strength cannot be monitored in real time, and relying on calculation leads to error accumulation. The medium and material states are not visible, the slag discharge is not complete, and the maintenance efficiency is low. There is a lack of an integrated monitoring system, and it is difficult to link with the automated production line.

[0005] Therefore, the present invention provides a monitoring and observation device for an electromagnetic iron remover to solve the technical problems raised in the above background art. Summary of the Invention

[0006] Aiming at the problems raised in the above-mentioned background art, the object of the present invention is to provide a monitoring and observation device for electromagnetic separators, to solve the problems that existing electromagnetic separators cannot monitor the magnetic field in real time, the medium state is not visible, and the slag discharge is not thorough, and to provide an efficient electromagnetic iron removal device integrating on-line magnetic field monitoring, visual medium observation and intelligent control.

[0007] To achieve the above technical object, the technical solution adopted by the present invention is as follows:

[0008] The monitoring and observation device for electromagnetic separators includes a box body, an exciting coil, a medium sheet, a magnetic field detection probe and a camera. The medium sheets are annularly distributed on a medium rod. The medium rod has a central hole and a magnetic field detection probe is embedded therein. The medium rod is arranged through the box body. The exciting coil is coated on the outer wall of the medium sheet. The exciting coil is arranged inside the box body. The camera is arranged on the top of the box body.

[0009] Further defined, it further includes a blow pipe, a compressed air source and a quick trachea plug. The camera is installed in the blow pipe. The blow pipe is connected to the compressed air source. The quick trachea plug is fixedly connected to the camera, and the video signal is fixed and exported through the quick trachea plug.

[0010] Further defined, it further includes a heat exchanger. The heat exchanger is arranged at the bottom of the box body. The exciting coil adopts a layered winding structure. The outer layer of the exciting coil is coated with a heat-conducting silica gel layer. The exciting coil is communicated with the heat exchanger to form an oil cooling circulation loop.

[0011] Further defined, it further includes a PLC control system, a first material distribution valve, a second material distribution valve, a vibration motor and a cooler. The first material distribution valve and the second material distribution valve are arranged at the bottom of the box body. The vibration motor is inverted on the upper side wall of the bottom of the box body. The cooler is arranged on the side wall of the bottom of the box body. The PLC control system is respectively communicatively connected to the first material distribution valve, the second material distribution valve, the vibration motor and the cooler.

[0012] Further defined, a signal transmission box and an exciting power connection box are respectively arranged on the same outer side wall of the box body. The signal transmission box and the exciting power connection box are arranged opposite to each other. A discharge waste port and a feeding port are arranged at the bottom of the box body. An inlet port is arranged on the top of the box body. The discharge waste port and the feeding port are respectively fixedly connected to the bottom of the inlet port. The feeding port is arranged vertically downward. The discharge waste port is arranged obliquely, and its inclination angle is not less than °.

[0013] Further defined, an anti-fog coating is arranged on the inner wall of the blow pipe. The viewing angle of the camera is directly opposite to the adsorption surface of the medium sheet.

[0014] Further defined, the magnetic field detection probe is a Hall sensor, and its signal wire is connected to the signal transmission box through the internal channel of the medium rod.

[0015] It is further defined that it also includes a water inlet and outlet, which are arranged below the cooler, and the heat exchanger is connected to an external cooling water circulation system through the water inlet and outlet, and a temperature sensor is integrated in the external cooling water circulation system.

[0016] It is further defined that the surface of the dielectric sheet is coated with a wear-resistant ceramic layer, and the dielectric rod is fixed to the box body by a detachable buckle.

[0017] It is further defined that the PLC control system is configured with an automatic slag discharge program and a temperature warning module, the automatic slag discharge program can trigger the first and second material distribution valves to operate according to dual conditions of a magnetic field strength threshold and a time period, and the temperature warning module is communicatively connected with a temperature sensor.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention embeds a magnetic field detection probe in a hole in the center of the dielectric rod to collect magnetic field data in real time and display it through a signal transmission box; a camera is pre-installed in the air blowing pipe, and compressed air is used to blow to prevent dust from covering the camera, and the video signal is transmitted to the external display screen through the air pipe quick plug; a PLC is used to control the material distribution valve, vibration motor and cooler to realize the automation of medium slag discharge, temperature regulation and equipment linkage; the excitation coil adopts a layered winding design, cooperates with the heat exchanger and transformer oil circulation, and improves the heat dissipation efficiency.

[0020] 2. The magnetic field probe can monitor and directly measure the magnetic field at the center of the medium in real time, greatly improving the measurement accuracy; the camera can provide a clear picture of the medium sheet and material flow, and the visual operation can greatly reduce the residual rate of slag discharge. The intelligent control of the PLC system can realize remote monitoring of the equipment status, and by optimizing the heat dissipation, the temperature rise of the coil is greatly reduced, which also increases the continuous working time of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention can be further illustrated by means of non-limiting examples given in the accompanying drawings;

[0022] Figure 1 It is a side view of an embodiment of the monitoring and observation device for an electromagnetic iron remover of the present invention;

[0023] Figure 2 It is a BB cross-sectional view of an embodiment of the monitoring and observing device for an electromagnetic iron remover of the present invention;

[0024] Figure 3 It is a partially enlarged structural schematic diagram of an embodiment of the electromagnetic iron remover monitoring and observation device of the present invention.

[0025] The descriptions of the main component symbols are as follows: material inlet 1, discharge waste port 2, blanking port 3, boom 4, gland 5, material cover 6, vibration motor 7, cooler 8, water inlet and outlet 9, first material distribution valve 10, signal transmission box 11, excitation power connection box 12, detection magnetic field probe 13, excitation coil 14, dielectric plate 15, box body 16, dielectric rod 17, second material distribution valve 18, heat exchanger 19, air pipe quick plug 20, camera 21. Detailed implementation manners

[0026] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1: As Figure 1As shown in the figure, the electromagnetic iron remover monitoring and observing device of the present invention includes a box body 16, an exciting coil 14, a dielectric sheet 15, a detection magnetic field probe 13, and a camera 21. The dielectric sheets 15 are annularly distributed on a dielectric rod 17. The dielectric rod 17 has a central hole and the detection magnetic field probe 13 is embedded therein. The dielectric rod 17 is disposed through the box body 16. The exciting coil 14 is coated on the outer wall of the dielectric sheet 15. The exciting coil 14 is disposed inside the box body 16. The camera 21 is disposed on the top of the box body 16.

[0030] In the practical application of this embodiment, it further includes a blow pipe, a compressed air source, and a gas pipe quick connector 20. The camera 21 is installed inside the blow pipe. The blow pipe is connected to the compressed air source. The gas pipe quick connector 20 is fixedly connected to the camera 21, and the video signal is fixed and exported through the gas pipe quick connector 20.

[0031] In the practical application of this embodiment, it further includes a heat exchanger 19. The heat exchanger 19 is disposed at the bottom of the box body 16. The exciting coil 14 adopts a layered winding structure, and the outer layer of the exciting coil 14 is coated with a heat-conducting silica gel layer. The exciting coil 14 is communicated with the heat exchanger 19 to form an oil cooling circulation loop.

[0032] In the practical application of this embodiment, it further includes a PLC control system, a first material distribution valve 10, a second material distribution valve 18, a vibration motor 7, and a cooler 8. The first material distribution valve 10 and the second material distribution valve 18 are disposed at the bottom of the box body 16. The vibration motor 7 is inverted on the upper side wall at the bottom of the box body 16. The cooler 8 is disposed on the side wall at the bottom of the box body 16. The PLC control system is respectively communicatively connected to the first material distribution valve 10, the second material distribution valve 18, the vibration motor 7, and the cooler 8.

[0033] In the practical application of this embodiment, a signal transmission box 11 and an exciting power connection box 12 are respectively disposed on the same outer side wall of the box body 16. The signal transmission box 11 and the exciting power connection box 12 are oppositely disposed. A discharge waste port 2 and a blanking port 3 are disposed at the bottom of the box body 16. An inlet port 1 is disposed on the top of the box body 16. The discharge waste port 2 and the blanking port 3 are respectively fixedly connected to the bottom of the inlet port 1. The blanking port 3 is vertically downward. The discharge waste port 2 is inclined, and its inclination angle is not less than 45°.

[0034] In the practical application of this embodiment, an anti-fog coating is provided on the inner wall of the blow pipe. The viewing angle of the camera 21 is directly opposite to the adsorption surface of the dielectric sheet 15.

[0035] In the practical application of this embodiment, the detection magnetic field probe 13 is a Hall sensor, and its signal wire is connected to the signal transmission box 11 through the internal channel of the dielectric rod 17.

[0036] In the actual application of this embodiment, it also includes a water inlet and outlet 9, which is arranged below the cooler 8. The heat exchanger 19 is connected to an external cooling water circulation system through the water inlet and outlet 9, and a temperature sensor is integrated in the external cooling water circulation system.

[0037] In the practical application of this embodiment, the surface of the dielectric sheet 15 is plated with a wear-resistant ceramic layer, and the dielectric rod 17 is fixed to the box body 16 by a detachable buckle.

[0038] In the actual application of this embodiment, the PLC control system is configured with an automatic slag discharge program and a temperature warning module. The automatic slag discharge program can trigger the first and second dosing valves 10 and 18 to operate according to the dual conditions of the magnetic field strength threshold and the time period. The temperature warning module is communicated with the temperature sensor.

[0039] The working principle of this embodiment is as follows:

[0040] In this embodiment, a magnetic field detection probe 13 is embedded in the center hole of the medium rod 17 to collect magnetic field data in real time and display it through the signal transmission box 11; a camera 21 is pre-installed in the air blowing pipe, and compressed air is used to blow to prevent dust from covering the camera 21, and the video signal is transmitted to the external display screen through the air pipe quick plug 20; PLC is used to control two material distribution valves, vibration motor 7 and cooler 8 to realize the automation of medium slag discharge, temperature regulation and equipment linkage; the excitation coil 14 adopts a layered winding design, cooperates with the heat exchanger 19 and transformer oil circulation, and improves the heat dissipation efficiency.

[0041] The magnetic field probe 13 can monitor and directly measure the magnetic field at the center of the medium in real time, greatly improving the measurement accuracy; the camera 21 can provide a clear picture of the medium sheet 15 and the material flow, and the visual operation can greatly reduce the residual rate of slag discharge. The intelligent control of the PLC system can realize remote monitoring of the equipment status, and by optimizing the heat dissipation, the temperature rise of the excitation coil 14 is greatly reduced, so that the continuous working time of the equipment is also improved simultaneously.

[0042] Embodiment 2:

[0043] The similarities between this embodiment and embodiment 1 are not repeated here. In this embodiment, the box 16 is first assembled, the layered winding excitation coil 14 is fixed to the inner wall of the box 16, and the heat exchanger 19 is connected to form an oil cooling circuit. A Hall sensor is embedded in the center hole of the dielectric rod 17 as a magnetic field detection probe 13, and then the signal line passes through the dielectric ring 17 to connect to the signal transmission box 11. A high-definition camera 21 is installed in the air pipe, and 0.5MPa compressed air is passed into the air pipe. The video signal is exported to the external central control room display screen through the shielded line.

[0044] PLC system programming settings: When the magnetic field strength is lower than 1.2T, the vibration motor 7, the first material distribution valve 10, and the second material distribution valve 18 are triggered to discharge slag. At the same time, the cooler 8 adjusts the water flow according to the oil temperature.

[0045] Embodiment 3:

[0046] The same parts of this embodiment and Embodiment 2 will not be described in detail. The differences from Embodiment 2 are as follows: In this embodiment, a rotating scraping blade and a micro motor are installed in front of the lens of the camera 21, and the rotating scraping blade is driven by the micro motor to remove dust every 10 minutes. The dielectric plate 15 is replaced with a porous stainless steel material with a tungsten carbide coating sprayed on the surface to improve wear resistance and adsorption efficiency, and such a setting is adapted to a high-dust environment. A wireless transmission module can also be added to synchronously upload magnetic field data and video images to the cloud server to support remote diagnosis.

[0047] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. The monitoring and observation device for electromagnetic iron remover is characterized by: The invention comprises a box (16), an excitation coil (14), a dielectric sheet (15), a magnetic field detection probe (13) and a camera (21); the dielectric sheet (15) is distributed in an annular manner on a dielectric rod (17); the dielectric rod (17) has a central opening and is embedded with the magnetic field detection probe (13); the dielectric rod (17) is arranged through the box (16); the excitation coil (14) is arranged on the outer wall of the dielectric sheet (15); the excitation coil (14) is arranged inside the box (16); and the camera (21) is arranged on the top of the box (16).

2. The electromagnetic iron remover monitoring and observation device according to claim 1 is characterized in that: It also comprises an air blowing pipe, a compressed air source and an air pipe quick plug (20), wherein the camera (21) is installed in the air blowing pipe, the air blowing pipe is connected to the compressed air source, the air pipe quick plug (20) is fixedly connected to the camera (21), and a video signal is fixed and derived through the air pipe quick plug (20).

3. The electromagnetic iron remover monitoring and observation device according to claim 1 is characterized in that: It also includes a heat exchanger (19), which is arranged at the bottom of the box body (16). The excitation coil (14) adopts a layered winding structure, and the outer layer of the excitation coil (14) is coated with a thermal conductive silicone layer. The excitation coil (14) is connected to the heat exchanger (19) to form an oil cooling circulation loop.

4. The electromagnetic iron remover monitoring and observation device according to claim 1 is characterized in that: The invention also comprises a PLC control system, a first dosing valve (10), a second dosing valve (18), a vibration motor (7) and a cooler (8); the first dosing valve (10) and the second dosing valve (18) are arranged at the bottom of a box body (16); the vibration motor (7) is inverted on the upper side wall of the bottom of the box body (16); the cooler (8) is arranged on the side wall of the bottom of the box body (16); and the PLC control system is respectively connected to the first dosing valve (10), the second dosing valve (18), the vibration motor (7) and the cooler (8) for communication.

5. The electromagnetic iron remover monitoring and observation device according to claim 1 is characterized in that: The same outer side wall of the box body (16) is provided with a signal transmission box (11) and an excitation power connection box (12), respectively. The signal transmission box (11) and the excitation power connection box (12) are arranged opposite to each other. The bottom of the box body (16) is provided with a discharge waste port (2) and a feed opening (3). The top of the box body (16) is provided with a feed opening (1). The discharge waste port (2) and the feed opening (3) are respectively fixedly connected to the bottom of the feed opening (1). The feed opening (3) is arranged vertically downward. The discharge waste port (2) is arranged obliquely, and its inclination angle is not less than 45°.

6. The electromagnetic iron remover monitoring and observation device according to claim 2, characterized in that: An anti-fog coating is provided on the inner wall of the air blowing tube, and the viewing angle of the camera (21) faces the adsorption surface of the medium sheet (15).

7. The electromagnetic iron remover monitoring and observation device according to claim 5, characterized in that: The magnetic field detection probe (13) is a Hall sensor, and its signal line is connected to the signal transmission box (11) via the internal channel of the dielectric rod (17).

8. The electromagnetic iron remover monitoring and observation device according to claim 4, characterized in that: It also includes a water inlet and outlet (9), wherein the water inlet and outlet (9) are arranged below the cooler (8), and the heat exchanger (19) is connected to an external cooling water circulation system through the water inlet and outlet (9), and a temperature sensor is integrated in the external cooling water circulation system.

9. The electromagnetic iron remover monitoring and observation device according to claim 1, characterized in that: The surface of the dielectric sheet (15) is plated with a wear-resistant ceramic layer, and the dielectric rod (17) is fixed to the box body (16) by a detachable buckle.

10. The electromagnetic iron remover monitoring and observation device according to claim 8, characterized in that: The PLC control system is configured with an automatic slag discharge program and a temperature warning module. The automatic slag discharge program can trigger the first material distribution valve (10) and the second material distribution valve (18) to operate according to the dual conditions of a magnetic field intensity threshold and a time period. The temperature warning module is communicatively connected with a temperature sensor.

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