Positioning device for the relative position of a dust collecting hood of a residual electrode cooling dust collecting device

Abstract

The utility model relates to the flue gas treatment and environmental protection technical field of electrolytic aluminium field in non ferrous metal smelting industry, disclose a kind of residual pole cooling dust collection device dust collection cover and the positioning device of residual pole relative position, including photoelectric switch support, guide rod ultra-wide detection photoelectric switch, guide rod detection photoelectric switch, reflector support and reflector, the photoelectric switch support is made of section steel, for installing the various photoelectric switches of detection, it has installation point one for installing guide rod ultra-wide detection photoelectric switch on, with installation point two for installing guide rod detection photoelectric switch, to avoid photoelectric switch signal interference each other, installation point one and installation point two cannot be at the same height. In the utility model, photoelectric switch and reflector are low in price, and cost is greatly reduced, the detection box precision of photoelectric switch is millimeter level, and detection accuracy is greatly increased, and photoelectric switch only needs to fix transmitter and receiver, and installation and debugging are simple, and control is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas treatment and environmental protection technology in the electrolytic aluminum field of the non-ferrous metal smelting industry. Specifically, it relates to a positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling dust collection device. Background Technology

[0002] In the electrolytic aluminum industry, the residual electrode cooling and dust collection device is used to cool the high-temperature residual electrodes taken from the electrolytic cell and collect harmful gases and dust released during the cooling process, such as hydrogen fluoride and sulfur dioxide. It is crucial, reducing fugitive emissions of pollutants and mitigating harm to the atmospheric environment and worker health, while also optimizing production layout and improving production efficiency. It is a key piece of equipment for enterprises to achieve green and sustainable development. Because the overhead conveyor cannot precisely position the residual electrodes within the dust collection hood during transport, accidents involving collisions between the dust collection hood and the residual electrode anode guide rod are highly likely if the relative positions of the dust collection hood and the residual electrode anode guide rod are not determined. Therefore, accurately determining the relative positions of the dust collection hood and the residual electrode anode guide rod is key to achieving precise dust collection and efficient operation.

[0003] In existing residual electrode cooling and dust collection devices, the relative position of the dust collection hood and the residual electrode anode guide rod is mainly determined by the following methods: Laser rangefinders have the advantages of high measurement accuracy, fast response speed, and adaptability to various environments; however, industrial-grade high-precision products are expensive, and the cost of multi-sensor networking and supporting data processing modules is high, requiring large investments from enterprises. Ultrasonic sensors have the advantages of low cost, affordability, simple installation and debugging, low requirements for technical personnel, and some adaptability to dusty environments; however, their disadvantages include limited measurement accuracy, generally at the centimeter level, which is difficult to meet high-precision requirements; and they are greatly affected by ambient temperature, with changes in the speed of sound wave propagation at high temperatures leading to large errors. Millimeter-wave radar has the advantages of strong penetration and stable operation in harsh environments such as dust and smoke; strong anti-interference ability, capable of detecting multiple targets simultaneously, good real-time performance, and rapid feedback of position information; however, although it can detect the position of the target, it is relatively weak in obtaining the precise contour and attitude information of the target. Infrared sensors have the advantages of low cost, economic practicality, convenient and quick installation, and a certain degree of tolerance to dust; however, they have a short detection distance and a narrow application range; their accuracy is not high, making it difficult to meet the needs of high-precision position judgment; and they are easily affected by ambient temperature and other infrared radiation sources, leading to misjudgments.

[0004] Visual sensors (industrial cameras) can intuitively acquire rich visual information, enabling multi-angle and wide-range judgments; through image processing algorithms, they can accurately locate and identify targets in complex scenes; they have strong judgment capabilities on the shape, posture, and other features of targets; however, in dusty environments, the lens is easily contaminated, affecting image quality, requiring additional dustproof and cleaning devices; they are demanding in terms of light, as insufficient or excessive light will affect the detection effect; the equipment and supporting software are costly, and the system setup is complex.

[0005] The existing detection methods have shortcomings. This utility model patent proposes a positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling and dust collection device. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling and dust collection device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling dust collection device includes a photoelectric switch bracket, a guide rod ultra-wide detection photoelectric switch, a guide rod presence / absence detection photoelectric switch, a reflector bracket, and a reflector. The photoelectric switch bracket is made of shaped steel and is used to install various photoelectric switches for detection. It has a mounting point one for installing the guide rod ultra-wide detection photoelectric switch and a mounting point two for installing the guide rod presence / absence detection photoelectric switch. To avoid interference between the photoelectric switch signals, mounting point one and mounting point two must not be at the same height. The photoelectric switch bracket is mounted on a tilting trolley of the dust collection hood and can move laterally with the dust collection hood.

[0008] Preferably, the ultra-wide detection photoelectric switch of the guide rod is a high-quality photoelectric switch with a narrow beam angle, which is installed on the left and right sides of the photoelectric switch bracket.

[0009] Preferably, the photoelectric switch for detecting the presence or absence of a guide rod is a high-quality photoelectric switch with a narrow beam angle, and the emission frequency of this photoelectric switch is different from that of the ultra-wide guide rod detection photoelectric switch, and it is installed in the center of the photoelectric switch bracket.

[0010] Preferably, the reflector bracket is made of steel profiles and steel plates, with an ultra-wide reflective base plate and a reflector with or without guide rods, and is installed on the opposite side of the residual electrode tray and the dust collection cover, with a height consistent with the corresponding photoelectric switch.

[0011] Preferably, the reflector is a 3M-grade high-quality reflector, which is installed on an ultra-wide reflective base plate and a reflector with or without a guide rod.

[0012] This utility model has the following beneficial effects: 1. Low cost: Photoelectric switches and reflectors are inexpensive, significantly reducing costs compared to visual sensors or laser rangefinders.

[0013] 2. Guaranteed detection accuracy: The detection box of the photoelectric switch has a millimeter-level accuracy, while the detection accuracy of the ultrasonic sensor, infrared sensor, and millimeter radar wave is centimeter-level, resulting in a significant increase in detection accuracy.

[0014] 3. Easy installation and control: The photoelectric switch only requires fixing the transmitter and receiver, without the need for complicated wiring or parameter configuration. Installation and debugging are simple and control is convenient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling and dust collection device proposed in this utility model. Figure 2 A partial structural diagram of a photoelectric switch for detecting the presence or absence of a guide rod in a positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling and dust collection device proposed in this utility model. Figure 3 This is a partial structural diagram of the mounting point of the positioning device for the relative position of the dust collection hood and the residual electrode in the residual electrode cooling and dust collection device proposed in this utility model. Figure 4 This is a partial structural diagram of a positioning device for the relative position of the dust collection cover and the residual electrode in a residual electrode cooling and dust collection device proposed in this utility model, showing a reflector plate with or without a guide rod.

[0016] Legend: 1. Photoelectric switch bracket; 2. Ultra-wide guide rod detection photoelectric switch; 3. Guide rod presence / absence detection photoelectric switch; 4. Reflector bracket; 5. Reflector; 101. Installation point one; 102. Installation point two; 401. Ultra-wide reflective base plate; 402. Guide rod presence / absence reflector. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling dust collection device. The device includes a photoelectric switch bracket 1, a guide rod ultra-wide detection photoelectric switch 2, a guide rod presence / absence detection photoelectric switch 3, a reflector bracket 4, and a reflector 5. The photoelectric switch bracket 1 is made of steel and is used to install various photoelectric switches for detection. It has a mounting point 101 for installing the guide rod ultra-wide detection photoelectric switch 2 and a mounting point 102 for installing the guide rod presence / absence detection photoelectric switch 3. To avoid interference between the photoelectric switch signals, the mounting points 101 and 102 must not be at the same height. The photoelectric switch bracket 1 is installed on the tilting trolley of the dust collection hood and can move laterally with the dust collection hood.

[0019] Specifically, a photoelectric switch bracket 1 made of steel is designed with mounting points 101 and 102 at different heights for the two types of photoelectric switches to avoid signal interference. The structural design of the bracket solves the signal crosstalk problem. At the same time, the way the bracket is installed on the tilting trolley ensures that the entire detection unit can move synchronously with the dust collection hood, providing a structural basis for achieving dynamic positioning.

[0020] Reference Figure 2 The ultra-wide detection photoelectric switch 2 is a high-quality photoelectric switch with a narrow beam angle, which is installed on the left and right sides of the photoelectric switch bracket 1.

[0021] Specifically, a narrow beam angle photoelectric switch is selected and its emission frequency is differentiated. The ultra-wide guide rod detection photoelectric switch 2 is placed on both sides of the bracket, and the guide rod presence / absence detection photoelectric switch is placed in the center. The corresponding reflector bracket 4 and reflector 5 are precisely installed on the other side of the residual electrode tray. Through spatial separation and frequency differentiation, a stable and reliable detection light curtain is constructed.

[0022] Reference Figure 2 and Figure 4 The photoelectric switch 3 for detecting the presence or absence of a guide rod is a high-quality photoelectric switch with a narrow beam angle. The emission frequency of this photoelectric switch is different from that of the ultra-wide guide rod detection photoelectric switch 2. It is installed in the center of the photoelectric switch bracket 1. The reflector bracket 4 is made of steel profiles and steel plates. It has an ultra-wide reflective base plate 401 and a guide rod presence or absence reflector 402 on it. It is installed on the opposite side of the residual electrode tray and the dust collection cover. Its height is consistent with the corresponding photoelectric switch. The reflector 5 is a 3M-grade high-quality reflector. It is installed on the ultra-wide reflective base plate 401 and the guide rod presence or absence reflector 402.

[0023] Specifically, the photoelectric switch 2 for detecting overwidth of the guide rod and the photoelectric switch 3 for detecting the presence or absence of the guide rod are used to detect the feedback signals. Based on the combined logic of whether the guide rod is overwidth and whether it is present or absent, three result states are determined. The corresponding actions of the dust collection hood are then controlled to perform: falling, remaining stationary, or moving laterally and then re-detecting. This achieves automated and intelligent control of the dust collection hood's movements, ultimately ensuring that the dust collection hood can be safely and accurately aligned with the residual electrode, thereby efficiently completing the dust collection operation and effectively avoiding equipment collision accidents.

[0024] Working principle: After the residual anode guide rod is transported to the residual anode cooling and dust collection device and stops, the detection is activated. The photoelectric signals of the photoelectric switch 2 for detecting the excessive width of the guide rod and the photoelectric switch 3 for detecting the presence or absence of the guide rod are detected, resulting in three possible outcomes: If the photoelectric switch 2 for detecting excessive width of the guide rod does not detect excessive width, and the photoelectric switch 3 for detecting whether there is a guide rod detects a guide rod, it means that the relative position of the residual anode guide rod and the dust collection hood is correct. The dust collection hood will then fall directly to cover the residual anode for dust collection. If the photoelectric switch 2 for detecting excessive width of the guide rod does not detect excessive width, and the photoelectric switch 3 for detecting whether there is a guide rod does not detect a guide rod, it means that there is no residual anode guide rod at the location of the dust collection hood, and the dust collection hood must not be operated. If the photoelectric switch 2 for detecting excessive width of the guide rod detects that it is too wide (left or right), regardless of whether the photoelectric switch 3 for detecting the guide rod detects the detection result, it indicates that there is interference between the relative position of the residual anode guide rod and the dust collection hood. The dust collection hood needs to be moved to the side of excessive width, and then the detection needs to be restarted.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling dust collection device, comprising a photoelectric switch bracket (1), a guide rod ultra-wide detection photoelectric switch (2), a guide rod presence / absence detection photoelectric switch (3), a reflector bracket (4), and a reflector (5), characterized in that: The photoelectric switch bracket (1) is made of steel and is used to install and test various photoelectric switches. It has a mounting point one (101) for installing the guide rod ultra-wide detection photoelectric switch (2) and a mounting point two (102) for installing the guide rod detection photoelectric switch (3). In order to avoid interference between the photoelectric switch signals, the mounting point one (101) and the mounting point two (102) must not be at the same height. The photoelectric switch bracket (1) is installed on the tilting trolley of the dust collection hood and can move laterally with the dust collection hood.

2. The positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling and dust collection device according to claim 1, characterized in that: The ultra-wide detection photoelectric switch (2) of the guide rod adopts a high-quality narrow beam angle photoelectric switch and is installed on the left and right sides of the photoelectric switch bracket (1).

3. The positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling and dust collection device according to claim 1, characterized in that: The photoelectric switch (3) for detecting the presence or absence of a guide rod is a high-quality photoelectric switch with a narrow beam angle. The emission frequency of the photoelectric switch here is different from that of the ultra-wide guide rod detection photoelectric switch (2), and it is installed in the center of the photoelectric switch bracket (1).

4. The positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling dust collection device according to claim 1, characterized in that: The reflector bracket (4) is made of steel profiles and steel plates. It has an ultra-wide reflector base plate (401) and a reflector plate with or without a guide rod (402). It is installed on the opposite side of the residual electrode tray and the dust collection cover, and its height is consistent with the corresponding photoelectric switch.

5. The positioning device for the relative position of the dust collection hood and the residual electrode in a residual electrode cooling and dust collection device according to claim 1, characterized in that: The reflector (5) is a 3M grade high-quality reflector, which is installed on the ultra-wide reflective base plate (401) and the reflector with or without guide rod (402).

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