An automatic anti-clogging device for desulfurized gypsum silos

Abstract

This utility model relates to material unblocking technology in the chemical industry, and presents an automatic unblocking device for desulfurized gypsum silos, including a silo, an air cannon, a pressure sensor, a visual monitoring device, and a controller. The silo is a long, narrow silo, wider at the top and narrower at the bottom, with high-polymer wear-resistant plates laid on the steel plates on all four sides of the silo's discharge chute. The air cannon includes an air cannon storage tank, a compressed air main pipe, an air cannon nozzle, and a high-pressure hose. A conveyor belt is installed at the bottom of the silo, and a visual monitoring device is installed on one side of the upper part of the silo. An air cannon nozzle is installed in the discharge chute at the bottom of the silo, and the air cannon nozzle is connected to the compressed air main pipe through a high-pressure hose. The compressed air main pipe is connected to the air cannon storage tank, which has a compressed air inlet. A pressure sensor is installed on the discharge chute of the silo, and the pressure sensor is installed at the air cannon nozzle. The controller is electrically connected to the air cannon, the pressure sensor, and the visual monitoring device.

Description

Technical Field

[0001] This utility model relates to the field of material unblocking technology in the chemical industry, and more specifically, to an automatic unblocking device for desulfurized gypsum silos to prevent material from becoming clogged. Background Technology

[0002] In chemical production processes, the storage and stable feeding of desulfurized gypsum are crucial. Traditional desulfurized gypsum silos often experience clogging due to high moisture content, leading to labor-intensive and unsafe manual cleaning after silo entry, as well as unstable batching, which affects production efficiency and product quality. While existing technologies include simple air cannon unclogging devices, they suffer from problems such as inaccurate clogging location, poor blowing effect, and lack of real-time monitoring, making it difficult to meet the high-efficiency and stable requirements of modern chemical production. Utility Model Content

[0003] This application provides an automatic anti-clogging device for desulfurized gypsum silos, which solves the problems of existing technologies, such as the inability to accurately locate the clogging material, poor blowing effect, and inability to monitor in real time, although there are simple air cannon anti-clogging devices.

[0004] This application provides an automatic unclogging device for desulfurized gypsum silos, including a silo, an air cannon, a pressure sensor, a visual monitoring device, and a controller;

[0005] The silo is a long, narrow silo that is wider at the top and narrower at the bottom. The four sides of the discharge chute of the silo body are covered with high-polymer wear-resistant plates.

[0006] The air cannon includes an air cannon storage tank, a compressed air main pipe, an air nozzle, and a high-pressure hose;

[0007] The bottom of the silo is equipped with a conveyor belt, and a visual monitoring device is installed on one side of the upper part of the silo. An air nozzle is installed in the discharge chute at the bottom of the silo. The air nozzle is connected to the compressed air main pipe through a high-pressure hose. The compressed air main pipe is connected to the air cannon storage tank. The air cannon storage tank is equipped with a compressed air inlet. The pressure sensor is installed on the discharge chute of the silo and is installed at the air nozzle.

[0008] The controller is electrically connected to the air cannon, the pressure sensor, and the visual monitoring device.

[0009] Preferably, the polymer wear-resistant plate is made of ultra-high molecular weight polyethylene.

[0010] Preferably, air nozzle A, air nozzle a, air nozzle B, air nozzle b, air nozzle C and air nozzle c are each connected to the compressed air main pipe via independent high-pressure hoses.

[0011] Preferably, the visual monitoring device includes a smart high-definition camera and a fixed pole, with the smart high-definition camera mounted above the fixed pole.

[0012] Preferably, the pressure sensor is a thin-film pressure sensor, which includes pressure sensor A, pressure sensor a, pressure sensor B, pressure sensor b, pressure sensor C and pressure sensor c, and is arranged in an array on the back of the polymer wear-resistant plate.

[0013] Preferably, a flow control valve is installed on the compressed air main pipe.

[0014] Preferably, the high-pressure hose is equipped with a pulse valve.

[0015] Preferably, the controller is an industrial-grade PLC.

[0016] As can be seen from the above technical solution, this application provides an automatic anti-clogging device for desulfurized gypsum silos. In actual production, when desulfurized gypsum in the silo experiences clogging due to factors such as moisture content, the camera of the visual monitoring equipment captures the material status on the conveyor belt at the silo outlet in real time. Simultaneously, the thin-film pressure sensor on the back of the polymer plate monitors the material accumulation stress. Once clogging occurs, the location of the clogging (front, middle, or rear) is determined based on the pressure change threshold. The controller quickly receives the signal and automatically matches the corresponding unclogging strategy, activating the air cannon at the corresponding location for spraying and unclogging. If the automatic unclogging effect is not satisfactory, the central control unit... Operators can observe and manually clear blockages through the monitoring screen. For example, when the material is being pumped at the front end, if the camera shows that there is no material on the conveyor belt at the hopper outlet and the pressure at pressure point A is >4 kPa, the controller will immediately activate air nozzle A, spraying a duckbill-shaped diffuser nozzle with a coverage radius of ≥0.5m at an air pressure of 0.4MPa to forcefully impact the pumping point, causing the material to loosen and fall, and restoring normal feeding. Throughout the entire production process, the system continuously monitors and automatically clears blockages, ensuring stable feeding of desulfurized gypsum, improving the qualified rate of batching, effectively reducing the labor intensity and safety risks of manual cleaning, and providing reliable protection for chemical production.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model features a segmented adjustable air cannon array with a unique nozzle design, which can accurately and powerfully clear blockages in different locations of the material, and the air pressure can be flexibly adjusted according to the actual situation to adapt to different working conditions.

[0019] 2. This utility model effectively reduces the probability of desulfurized gypsum bridging by laying high-polymer wear-resistant boards in the silo structure design, improves material flowability, and reduces bridging problems from the source.

[0020] 3. This utility model integrates visual monitoring and pressure sensing into a material observation module, which can acquire real-time material status information in the silo, providing a reliable basis for automatic unblocking and realizing intelligent and automated unblocking operations.

[0021] 4. The automatic control execution system of this utility model automatically matches the unblocking according to the position of the material, improves the unblocking efficiency, ensures stable feeding of desulfurized gypsum, and reduces the labor intensity and safety risks of manual unblocking.

[0022] In summary, an automatic unblocking device for desulfurized gypsum silos, featuring a segmented adjustable air cannon array combined with a unique nozzle design, can precisely and powerfully unblock materials in different locations. The air pressure can be flexibly adjusted according to actual conditions to adapt to various working requirements. Furthermore, an unblocking observation module integrating visual monitoring and pressure sensing can acquire real-time material status information within the silo, providing a reliable basis for automatic unblocking and enabling intelligent and automated unblocking operations. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an automatic anti-clogging device for desulfurized gypsum silos provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of an automatic anti-clogging device for desulfurized gypsum silos provided by this utility model;

[0026] Figure 3 This is a schematic diagram of the air cannon in an automatic anti-clogging device for desulfurized gypsum silos provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the material discharge chute in an automatic anti-clogging device for desulfurized gypsum silos provided by this utility model.

[0028] The reference numerals in the detailed embodiments are as follows:

[0029] 1. Material hopper; 2. Air cannon; 201. Air cannon storage tank; 202. Compressed air main pipe; 203. Air cannon nozzle; 2031. Air cannon nozzle A; 2032. Air cannon nozzle a; 2033. Air cannon nozzle B; 2034. Air cannon nozzle b; 2035. Air cannon nozzle C; 2036. Air cannon nozzle c; 204. High-pressure hose; 3. Pressure sensor; 301. Pressure sensor A; 302. Pressure sensor a; 303. Pressure sensor B; 304. Pressure sensor b; 305. Pressure sensor C; 306. Pressure sensor c; 4. Visual monitoring equipment; 401. Intelligent high-definition camera; 402. Fixing rod; 5. Controller; 6. Conveyor belt; 7. Discharge chute; 8. Polymer wear-resistant plate; 9. Compressed air inlet; 10. Flow control valve; 11. Pulse valve. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0031] See Figure 1-4 This application proposes an automatic anti-clogging device for desulfurized gypsum silos. While existing technologies include simple air cannon anti-clogging devices, they suffer from limitations such as inaccurate clogging location, poor blowing effect, and lack of real-time monitoring. The device features a segmented adjustable air cannon array combined with a unique nozzle design, enabling precise and powerful anti-clogging of clogging at different locations. The air pressure can be flexibly adjusted according to actual conditions to adapt to various operating requirements. An anti-clogging observation module integrating visual monitoring and pressure sensing acquires real-time material status information within the silo, providing a reliable basis for automatic anti-clogging and achieving intelligent and automated anti-clogging operations.

[0032] Specifically, an automatic anti-clogging device for desulfurized gypsum silos includes a silo 1, an air cannon 2, a pressure sensor 3, a visual monitoring device 4, and a controller 5. The silo 1 is a long, narrow silo, wider at the top and narrower at the bottom. High-molecular-weight wear-resistant plates 8 are laid on the four steel plates of the discharge chute 7 of the silo 1 main body. The high-molecular-weight wear-resistant plates 8 are made of ultra-high molecular weight polyethylene, with a thickness of 10-15 mm and a surface roughness ≤1.5 μm. They are bolted to the four steel plates of the discharge chute 7 of the silo 1 main body to ensure smooth material flow within the silo and reduce wear on the silo body. The air cannon 2 includes an air cannon storage tank 201. Compressed air main pipe 202, air nozzle 203, high-pressure hose 204; conveyor belt 6 is provided at the bottom of the silo 1, and a visual monitoring device 4 is installed on one side of the upper part of the silo 1. The visual monitoring device 4 includes an intelligent high-definition camera 401 and a fixing rod 402. The intelligent high-definition camera 401 is installed above the fixing rod 402. The intelligent high-definition camera 401 is installed on the top of the silo 1 through the fixing rod 402. It has a wide-angle fill light, an automatic focusing function, and the camera housing has an IP67 protection rating. It can operate stably in harsh industrial environments and accurately capture the material feeding status information in the silo.

[0033] Air nozzles 203 are installed in the discharge chute 7 at the bottom of the silo 1. The air nozzles 203 are connected to the compressed air main pipe 202 via high-pressure hoses 204. Air nozzles A2031, a2032, B2033, b2034, C2035, and c2036 of the air nozzles 203 are each connected to the compressed air main pipe 202 via independent high-pressure hoses 204. Air nozzles A2031 and a2032 are staggered at the front end of the silo 1 along its length, and air nozzles B2033 and c2036 are staggered at the middle end of the silo. Air cannon nozzles B2034, C2035 and C2036 are offset at the rear end of the chamber, with a diameter of 50mm and an installation tilt angle 15° downwards towards the center axis of the chamber. The air cannon nozzles adopt a duckbill-shaped diffusion design, with a spray coverage radius ≥0.5m. Each nozzle is controlled by an individual electromagnetic circuit. The air cannon pressure is adjustable from 0.3 to 0.5MPa. A pulse valve 11 is installed on the high-pressure hose 204. The compressed air main pipe 202 is connected to the air cannon storage tank 201. The air cannon storage tank 201 is equipped with a compressed air inlet 9. A flow control valve 10 is installed on the compressed air main pipe 202.

[0034] Pressure sensors 3 are installed on the discharge chute 7 of the hopper 1. The pressure sensors 3 are mounted at the air nozzle 203 and are thin-film pressure sensors. The pressure sensors 3 include pressure sensors A301, a302, B303, b304, C305, and c306, arranged in an array on the back of the polymer wear-resistant plate 8. The pressure sensors 3 are installed on the back of the polymer wear-resistant plate 8 to detect the material accumulation stress and determine the material overflow position based on the pressure mutation threshold (>0 kPa). For example: During the front-end material loading, if the intelligent high-definition camera 401 reports that there is no material on the conveyor belt 6 at the outlet of hopper 1, and the pressure at pressure sensor A is >0, then air nozzle A2031 is activated. If the pressure at pressure sensor A301 is 0, and the pressure at pressure sensor a302 is >0, then air nozzle a2032 is activated. During the middle-end material loading, if the intelligent high-definition camera 401 reports that there is no material on the conveyor belt 6 at the outlet of hopper 1, and the pressure at pressure sensors A301 and a302 is 0, and the pressure at pressure sensor B303 is >0, then air nozzle B2033 is activated. When the pressure sensors A301, A302, and B303 are at zero, the mid-range air nozzle B2034 is activated. During material loading at the rear, the intelligent high-definition camera 401 reports that there is no material on the conveyor belt 6 at the outlet of hopper 1. The pressure at pressure sensors A301, A302, B303, and B304 is 0, and the pressure at pressure sensor C305 is >0, thus activating the air nozzle C2035. Pressure sensors A301, A302, B303, and B304 are activated. If the pressure at sensor b304 and pressure sensor C305 is zero, and the pressure at pressure sensor c306 is greater than zero, then the air cannon c2036 will be activated. The controller 5 adopts an industrial-grade PLC. The controller 5 is electrically connected to the air cannon 2, pressure sensor 3 and visual monitoring equipment 4. After receiving the detection signal, the controller 5 automatically matches the unblocking strategy based on the material status of the conveyor belt 6 at the outlet of the hopper 1 and the pressure value of each pressure point fed back by the intelligent high-definition camera 401, and activates the corresponding air cannon 2 to unblock. The central control is equipped with a TV monitoring screen, and the operation interface is set to a manual control interface.

[0035] As can be seen from the above technical solution, in actual production, when desulfurized gypsum in silo 1 experiences material sloshing due to factors such as moisture content, the intelligent high-definition camera 401 of the visual monitoring device 4 captures the material condition on the conveyor belt 6 at the outlet of silo 1 in real time. Simultaneously, the pressure sensor 3 on the back of the polymer wear-resistant plate 8 monitors the material accumulation stress. Once sloshing occurs, the location (front, middle, or rear) is determined based on the pressure change threshold. The controller 5 quickly receives the signal and automatically matches the corresponding unblocking strategy, triggering the air cannon 2 at the corresponding location to spray and clear the blockage. If the automatic unblocking effect is unsatisfactory, the central control operator can... By observing the monitoring screen and manually operating the unblocking mechanism, for example, when the material is being pumped at the front end, the intelligent high-definition camera 401 shows that there is no material on the conveyor belt 6 at the outlet of hopper 1, and the pressure at pressure sensor A301 is >0 kPa. The controller 5 immediately activates the air cannon nozzle A2031, which sprays a duckbill-shaped diffuser nozzle with a coverage radius of ≥0.5m at an air pressure of 0.4MPa to strongly impact the pumping point, causing the material to loosen and fall, and restoring normal feeding. Throughout the entire production process, continuous monitoring and automatic unblocking ensure stable feeding of desulfurized gypsum, improve the qualified rate of batching, effectively reduce the labor intensity and safety risks of manual unblocking, and provide reliable protection for chemical production.

[0036] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the applications disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0037] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A desulfurized gypsum bin anti-clogging material automatic unblocking device, characterized in that: Includes a hopper (1), an air cannon (2), a pressure sensor (3), a visual monitoring device (4), and a controller (5); The silo (1) is a long strip silo that is wider at the top and narrower at the bottom. The four sides of the discharge chute (7) of the main body of the silo (1) are covered with high polymer wear-resistant plates (8). The air cannon (2) includes an air cannon storage tank (201), a compressed air main pipe (202), an air cannon nozzle (203), and a high-pressure hose (204). The bottom of the silo (1) is provided with a conveyor belt (6), and a visual monitoring device (4) is installed on one side of the upper part of the silo (1). An air nozzle (203) is provided in the discharge chute (7) at the bottom of the silo (1). The air nozzle (203) is connected to the compressed air main pipe (202) through a high-pressure hose (204). The compressed air main pipe (202) is connected to the air cannon storage tank (201). The air cannon storage tank (201) is provided with a compressed air inlet (9). The pressure sensor (3) is provided on the discharge chute (7) of the silo (1). The pressure sensor (3) is installed at the air nozzle (203). The controller (5) is electrically connected to the air cannon (2), the pressure sensor (3) and the visual monitoring device (4).

2. The automatic clogging clearing device for the shed material of the desulfurized gypsum bin according to claim 1, characterized in that: The material of the polymer wear-resistant plate (8) is ultra-high molecular weight polyethylene.

3. The automatic clogging clearing device for the shed material of the desulfurized gypsum bin according to claim 1, characterized in that: The air nozzles A (2031), a (2032), B (2033), b (2034), C (2035), and c (2036) of the air nozzles (203) are respectively connected to the compressed air main pipe (202) through independent high-pressure hoses (204).

4. The automatic clogging clearing device for the shed material of the desulfurized gypsum bin according to claim 1, characterized in that: The visual monitoring device (4) includes an intelligent high-definition camera (401) and a fixed rod (402), with the intelligent high-definition camera (401) mounted above the fixed rod (402).

5. The automatic unblocking device for the warehouse of desulfurized gypsum according to claim 1, characterized in that: The pressure sensor (3) is a thin-film pressure sensor. The pressure sensor (3) includes pressure sensor A (301), pressure sensor a (302), pressure sensor B (303), pressure sensor b (304), pressure sensor C (305) and pressure sensor c (306), and is distributed in an array on the back of the polymer wear-resistant plate (8).

6. The automatic unblocking device for the warehouse of desulfurized gypsum according to claim 1, characterized in that: A flow control valve (10) is installed on the main compressed air pipe (202).

7. The automatic unblocking device for the warehouse of desulfurized gypsum according to claim 1, characterized in that: A pulse valve (11) is provided on the high-pressure hose (204).

8. The automatic unblocking device for the warehouse of desulfurized gypsum according to claim 1, characterized in that: The controller (5) is an industrial-grade PLC.

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