Danger reduction device for control loop of coal feeder

By using the air intake and exhaust mechanisms of the coal feeder control circuit risk mitigation device, the problem of dust entering the control cabinet was solved, achieving a clean environment and stable operation of the control cabinet, reducing the failure rate, and improving heat dissipation efficiency and insulation performance of electrical components.

CN121531664APending Publication Date: 2026-02-13NINGXIA GENERATE ELECTRICITY GRP LIUPANSHAN THERMOELECTRICITY FACTORY
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Patent Information

Application Number
CN202511756811.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

During long-term operation, dust accumulates inside the existing control cabinet through the cooling fan, increasing the failure rate of the control circuit and the risk of electrical faults.

Method used

A risk mitigation device for the control loop of a coal feeder was designed, equipped with an air intake mechanism and an exhaust mechanism, including a dustproof mesh plate, a semiconductor cooler and a sealing plate. It can automatically shut off the cooling fan when the cooling fan stops, and the sealing ring and sealing plate ensure tight sealing. At the same time, it achieves precise temperature control through a temperature sensor and a control module.

Benefits of technology

It effectively prevents dust from entering the control cabinet, reduces the failure rate, improves heat dissipation efficiency and insulation performance of electrical components, extends service life, and ensures that the control circuit operates stably in a suitable temperature environment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention provides a risk reduction device for a control loop of a coal feeder, and relates to the field of control cabinets. A locking structure is fixedly arranged on the outer side of the cabinet body, a limiting assembly is fixedly arranged in the cabinet body, and a mounting structure is further fixedly arranged in the cabinet body; an air inlet mechanism is fixedly arranged in one side of the cabinet body, an exhaust mechanism is fixedly arranged on the other side of the cabinet body, and the exhaust mechanism comprises an exhaust frame, a fixing frame, a cooling fan, a fixing cylinder and a sealing plate; the sealing plate is movably arranged on the outer side of the exhaust frame; through the air inlet mechanism and the exhaust mechanism, when the cooling fan stops working, a sealing plate can automatically seal the cooling fan; external dust is prevented from entering the control cabinet from the cooling fan; the clean environment in the control cabinet is guaranteed, the failure rate of a control loop is further reduced, and the problem that external dust may enter the control cabinet from the heat dissipation fan when the heat dissipation fan stops working is solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of control cabinet, in particular to a coal feeder control loop safety device. BACKGROUND

[0002] In the field of industrial production, as a key equipment for coal conveying and supplying, the stable operation of the control loop of the coal feeder plays a crucial role in the continuity and efficiency of the entire production process. The control loop is usually installed inside the control cabinet, and through precise electrical control, the operation parameters of the coal feeder are adjusted and monitored to ensure that the coal feeder can work stably and accurately according to the predetermined requirements.

[0003] The existing control cabinet has many internal plates, and during long-time operation, a large amount of heat is generated by the plates. The current control cabinet usually dissipates heat through a cooling fan. When the cooling fan stops working, dust from the outside may enter the control cabinet through the cooling fan. As the running time of the control cabinet continues to extend, dust will gradually accumulate inside the control cabinet and cover the surface of the control loop plate. These dust not only greatly increases the risk of electrical faults such as leakage between the plates, but also increases the failure rate of the control loop. SUMMARY

[0004] Therefore, the present application provides a coal feeder control loop safety device, which has an air inlet mechanism and an air outlet mechanism, and can automatically close the cooling fan when the cooling fan stops working. Preventing dust from the outside from entering the control cabinet through the cooling fan. Ensure a clean environment inside the control cabinet, thereby reducing the failure rate of the control loop.

[0005] The present application provides a coal feeder control loop safety device, which specifically comprises: a cabinet body; a locking structure is fixedly arranged outside the cabinet body, a limiting assembly is fixedly arranged inside the cabinet body, and an installation structure is also fixedly arranged inside the cabinet body; an air inlet mechanism is fixedly arranged inside one side of the cabinet body, and an air outlet mechanism is fixedly arranged on the other side of the cabinet body; a temperature sensor is fixedly arranged on the inside bottom of the cabinet body, and a control module is fixedly arranged on the top of the cabinet body, and the control module and the temperature sensor are electrically connected; The air outlet mechanism comprises: an air outlet frame, a fixed frame, a cooling fan, a fixed cylinder and a sealing plate; the air outlet frame is fixedly arranged on one side of the cabinet body; the fixed frame is fixedly arranged inside the air outlet frame; the cooling fan is fixedly arranged inside the fixed frame, and the cooling fan is arranged in a straight line, and the cooling fan is electrically connected with the control module; the fixed cylinder is fixedly arranged on the top and bottom of the air outlet frame, and the fixed cylinder is symmetrically arranged in four groups; the sealing plate is movably arranged outside the air outlet frame, and the outside of the sealing plate is in close contact with the outside of the air outlet frame.

[0006] Further, the cabinet body is provided with a cabinet door outside, and the cabinet door is provided with a locking hook outside, and the locking hook is provided with two groups of symmetrically.

[0007] Further, the cabinet body is provided with a cabinet door outside, and the cabinet door is provided with a locking hook outside, and the locking hook is provided with two groups of symmetrically.

[0008] Further, the locking structure comprises a locking seat, a handle, a connecting column, a locking rod and a limiting nut, the locking seat is fixedly arranged outside the cabinet body, the handle is rotatably arranged inside the locking seat, the connecting column is rotatably arranged inside the handle, the locking rod is movably arranged inside the connecting column, the locking rod is provided in an inverted U shape, and the locking rod is movably arranged inside the locking hook, and the limiting nut is threadedly connected to the two ends of the locking rod, and the limiting nut is in contact with the connecting column.

[0009] Further, the limiting assembly comprises a limiting frame, a guide seat, a guide rod and a limiting plate, the limiting frame is fixedly arranged inside the cabinet body, the guide seat is fixedly arranged on both sides of the limiting frame, the guide rod is slidably arranged inside the guide seat, and the guide rod is provided with two groups of symmetrically, and the limiting plate is fixedly arranged outside the guide rod.

[0010] Further, the mounting structure comprises a vertical frame, a double-headed screw rod, an adjusting seat, an adjusting plate, a connecting seat, a mounting plate and a wire arranging groove, the vertical frame is fixedly arranged inside the cabinet body, the double-headed screw rod is rotatably arranged between the vertical frame and the cabinet body, the double-headed screw rod is fixedly arranged on the shaft end of the motor device, the motor device is fixedly arranged on the top of the cabinet body, the adjusting seat is slidably arranged inside the vertical frame through a dovetail groove, the adjusting seat is threadedly connected to the outside of the double-headed screw rod, the adjusting plate is rotatably arranged outside the adjusting seat, the connecting seat is rotatably arranged on the end of the adjusting plate, the connecting seat, the adjusting plate and the adjusting seat are provided with two groups of symmetrically, the mounting plate is fixedly arranged between the connecting seat and the guide rod, and the wire arranging groove is fixedly arranged on the mounting plate.

[0011] Further, the air inlet mechanism comprises an air inlet frame, a dustproof mesh plate, a semiconductor refrigerator, a water collecting box and a drain pipe, the air inlet frame is fixedly arranged inside the other side of the cabinet body, the dustproof mesh plate is fixedly arranged inside the air inlet frame, the semiconductor refrigerator is fixedly arranged on both sides of the air inlet frame, and the semiconductor refrigerator is provided with two groups of symmetrically, the refrigeration surface of the semiconductor refrigerator is located inside the air inlet frame, and the heating surface of the semiconductor refrigerator is located outside the air inlet frame, the water collecting box is fixedly arranged inside the bottom side of the air inlet frame, and the drain pipe is fixedly arranged on the bottom of the water collecting box.

[0012] Further, the air inlet mechanism further comprises: air deflector A and air deflector B; the air deflector A is fixedly arranged in the air inlet frame, and the air deflector A is arranged in a straight line and has three groups; the air deflector B is fixedly arranged in the air inlet frame, and the air deflector B is arranged in a straight line and has two groups; the air deflector B and the air deflector A are arranged in a staggered manner, and an S-shaped channel is formed between the air deflector B and the air deflector A.

[0013] Further, the air exhaust mechanism further comprises: a sliding rod, a baffle and a connecting seat; the sliding rod is slidably arranged in the fixed cylinder; the baffle is fixedly arranged at the end of the sliding rod and is slidably arranged in the fixed cylinder; a spring member is arranged between the baffle and the inner side of the fixed cylinder, and the spring member is located on the outer side of the sliding rod; the connecting seat is fixedly arranged at the top end of the sliding rod and is fixedly connected between the connecting seat and the sealing plate.

[0014] Further, the air exhaust mechanism further comprises: a sealing groove B and a sealing ring B; the sealing groove B is formed in the inner side of one side of the air exhaust frame; the sealing ring B is fixedly arranged on the inner side of the sealing plate and is movably arranged in the sealing groove B.

[0015] Beneficial effects 1、The air inlet mechanism is provided with a dust screen plate, which can preliminarily filter the dust from the outside; at the same time, when the cooling fan stops working, the sealing plate can automatically close the cooling fan under the action of the spring member, and the cooperation of the sealing ring B and the sealing groove B ensures the tightness of the closure, effectively prevents the dust from the outside from entering the cabinet body through the cooling fan, avoids the problems of insulation performance reduction of the plate caused by dust accumulation and signal transmission interference, greatly reduces the failure rate of the control circuit, and provides reliable protection for the stable operation of the coal feeder.

[0016] 2、The air entering the cabinet is cooled by the semiconductor refrigerator, and the S-shaped channel formed by the air deflector A and the air deflector B prolongs the residence time of the air in the air inlet frame, so that the air is fully cooled and the heat dissipation efficiency is improved; at the same time, the cooling fan is arranged in a straight line, which can quickly exhaust the hot air in the cabinet body and form good air circulation; in addition, the temperature sensor is electrically connected with the control module, so that the speed of the cooling fan can be adjusted in real time according to the temperature in the cabinet, precise temperature control is realized, the control circuit can stably work in a suitable temperature environment, and the service life of the plate is prolonged.

[0017] 3、The S-shaped channel formed by the air deflector A and the air deflector B prolongs the residence time of the air in the air inlet frame, so that the air is fully cooled; the moisture contained in the air can be liquefied when the temperature is reduced to below the dew point, thereby ensuring the dryness of the air entering the cabinet and preventing the cabinet from being too humid.

[0018] 4、The application, by being provided with the double-head screw rod, the adjusting seat, the adjusting plate and the connecting seat, can adjust the horizontal position of the mounting plate, can extend the mounting plate out of the cabinet body, effectively increases the work space range of the worker, and provides convenient conditions for the worker to accurately and efficiently install various electrical elements on the mounting plate. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings described in the following description only relate to some embodiments of the application, and are not a limitation of the application.

[0021] In the drawings: Figure 1 is the overall structure schematic diagram of the application.

[0022] Figure 2 is the internal structure schematic diagram of the cabinet body of the application.

[0023] Figure 3 is the structure schematic diagram of the mounting structure of the application.

[0024] Figure 4 is the structure schematic diagram of the limiting assembly of the application.

[0025] Figure 5 is the structure schematic diagram of the cabinet door of the application.

[0026] Figure 6 is the structure schematic diagram of the locking structure of the application.

[0027] Figure 7 is the internal structure schematic diagram of the exhaust rack of the application.

[0028] Figure 8 is the structure schematic diagram of the sealing plate of the application.

[0029] Figure 9 is the internal structure schematic diagram of the fixing cylinder of the application.

[0030] Figure 10 is the sectional structure schematic diagram of the air inlet rack of the application.

[0031] LIST OF REFERENCE NUMERALS 1, cabinet body; 101, cabinet door; 102, locking hook; 103, sealing groove A; 104, sealing ring A; 105, temperature sensor; 106, control module; 2, locking structure; 201, locking seat; 202, handle; 203, connecting column; 204, locking rod; 205, limiting nut; 3, limiting assembly; 301, limiting frame; 302, guide seat; 303, guide rod; 304, limiting plate; 4, mounting structure; 401, vertical frame; 402, double-end screw; 403, adjusting seat; 404, adjusting plate; 405, connecting seat; 406, mounting plate; 407, wire management groove; 5, air inlet mechanism; 501, air inlet frame; 502, dust screen plate; 503, semiconductor refrigerator; 504, water collecting box; 505, drain pipe; 506, air deflector A; 507, air deflector B; 6, exhaust mechanism; 601, exhaust frame; 602, fixed frame; 603, cooling fan; 604, fixed cylinder; 605, sliding rod; 606, baffle; 607, adapter seat; 608, sealing plate; 609, sealing groove B; 6010, sealing ring B. DETAILED DESCRIPTION

[0032] In order to make the purpose, scheme and advantages of the technical scheme of the present application more clear, the technical scheme of the present application will be described clearly and completely in the following with reference to the drawings of the specific embodiments of the present application. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0033] Example one: please refer to Figures 1 to 10 As shown in the figure: The present application provides a coal machine control loop safety device, including cabinet 1; The outer side of cabinet 1 is fixedly provided with locking structure 2, and the inside of cabinet 1 is fixedly provided with limiting assembly 3, and the inside of cabinet 1 is also fixedly provided with mounting structure 4; One side of cabinet 1 is fixedly provided with air inlet mechanism 5 inside, and the other side of cabinet 1 is fixedly provided with exhaust mechanism 6; Temperature sensor 105 is fixedly arranged at the bottom of the inner side of cabinet 1, and control module 106 is fixedly arranged at the top of cabinet 1, and control module 106 and temperature sensor 105 are electrically connected; In the embodiment, the exhaust mechanism 6 comprises: an exhaust frame 601, a fixed frame 602, a heat dissipation fan 603, a fixed cylinder 604 and a sealing plate 608; the exhaust frame 601 is fixedly arranged on one side of the cabinet body 1; the fixed frame 602 is fixedly arranged inside the exhaust frame 601; the heat dissipation fan 603 is fixedly arranged inside the fixed frame 602, and the heat dissipation fan 603 is arranged in a straight line, and the heat dissipation fan 603 is electrically connected with the control module 106; the fixed cylinder 604 is fixedly arranged on the top and bottom of the exhaust frame 601, and the fixed cylinder 604 is symmetrically arranged in four groups; the sealing plate 608 is movably arranged outside the exhaust frame 601, and the outside of the sealing plate 608 is attached to the outside of the exhaust frame 601; a cabinet door 101 is rotatably arranged on the outside of the cabinet body 1, and a locking hook 102 is fixedly arranged on the outside of the cabinet door 101, and the locking hook 102 is symmetrically arranged in two groups; a sealing groove A 103 is formed in the inside of one side of the cabinet body 1, and a sealing ring A 104 is fixedly arranged on the inside of the cabinet door 101, and the sealing ring A 104 is movably arranged inside the sealing groove A 103; the locking structure 2 comprises: a locking seat 201, a handle 202, a connecting column 203, a locking rod 204 and a limiting nut 205; the locking seat 201 is fixedly arranged on the outside of the cabinet body 1; the handle 202 is rotatably arranged at the end of the locking seat 201; the connecting column 203 is rotatably arranged inside the handle 202; the locking rod 204 is movably arranged at both ends of the connecting column 203, and the locking rod 204 is arranged in an inverted U shape, and the locking rod 204 is movably arranged inside the locking hook 102; the limiting nut 205 is threadedly connected to the outside of both ends of the locking rod 204, and the outside of the limiting nut 205 is attached to the outside of the connecting column 203; the exhaust mechanism 6 further comprises: a sliding rod 605, a baffle 606, a connecting seat 607, a sealing groove B 609 and a sealing ring B 6010; the sliding rod 605 is slidably arranged inside the fixed cylinder 604; the baffle 606 is fixedly arranged at the end of the sliding rod 605, and the baffle 606 is slidably arranged inside the fixed cylinder 604; a spring member is arranged between the baffle 606 and the inside of the fixed cylinder 604, and the spring member is located outside the sliding rod 605; the connecting seat 607 is fixedly arranged at the top end of the sliding rod 605, and the connecting seat 607 is fixedly connected with the sealing plate 608; the sealing groove B 609 is formed in the inside of one side of the exhaust frame 601; the sealing ring B 6010 is fixedly arranged on the inside of the sealing plate 608, and the sealing ring B 6010 is movably arranged inside the sealing groove B 609; the specific function is that when the heat dissipation fan 603 stops working, the sealing plate 608 can automatically close the heat dissipation fan 603 under the action of the spring member, and the cooperation of the sealing ring B 6010 and the sealing groove B 609 ensures the tightness of the closure, effectively preventing dust from entering the inside of the cabinet body 1 from the heat dissipation fan 603, avoiding problems such as insulation performance reduction and signal transmission interference caused by dust accumulation.

[0034] Embodiment two: please refer to Figures 2 to 4As shown: Based on Embodiment 1, the limiting component 3 includes: a limiting frame 301, a guide seat 302, a guide rod 303, and a limiting plate 304; the limiting frame 301 is fixedly installed inside the cabinet 1; the guide seat 302 is fixedly installed on both sides of the limiting frame 301; the guide rod 303 is slidably installed inside the guide seat 302, and two sets of guide rods 303 are symmetrically arranged; the limiting plate 304 is fixedly installed on the outside of the guide rod 303; the mounting structure 4 includes: a vertical frame 401, a double-ended screw 402, an adjusting seat 403, an adjusting plate 404, a connecting seat 405, a mounting plate 406, and a cable management channel 407; the vertical frame 401 is fixedly installed inside the cabinet 1; the double-ended screw 402 is rotatably installed between the vertical frame 401 and the inside of the cabinet 1, and the double-ended screw 402 is fixedly installed at the end of the motor device shaft, and the motor device is fixed. The adjustment seat 403 is slidably mounted inside the vertical frame 401 via a dovetail groove, and is threadedly connected to the outside of the double-ended screw 402. The adjustment plate 404 is rotatably mounted on the outside of the adjustment seat 403. The connecting seat 405 is rotatably mounted on the end of the adjustment plate 404, and two sets of the connecting seat 405, the adjustment plate 404, and the adjustment seat 403 are symmetrically arranged. The mounting plate 406 is fixedly mounted between the connecting seat 405 and the end of the guide rod 303. The cable management groove 407 is fixedly mounted on the mounting plate 406. Its specific function is to adjust the horizontal position of the mounting plate 406 by setting the double-ended screw 402 and the adjustment seat 403, and the adjustment plate 404 and the connecting seat 405; to extend the mounting plate 406 out of the cabinet 1; and to effectively increase the working space of the staff.

[0035] Example 3: Please refer to Figure 1 and Figure 10As shown: Based on Embodiment 1 and Embodiment 2, the air intake mechanism 5 includes: an air intake frame 501, a dustproof mesh plate 502, a semiconductor cooler 503, a water collection box 504, a drain pipe 505, an air guide plate A 506, and an air guide plate B 507; the air intake frame 501 is fixedly installed inside the other side of the cabinet 1; the dustproof mesh plate 502 is fixedly installed inside the air intake frame 501; the semiconductor cooler 503 is fixedly installed on both sides of the air intake frame 501, and two sets of semiconductor coolers 503 are symmetrically arranged; the cooling surface of the semiconductor cooler 503 is located inside the air intake frame 501, and the heating surface of the semiconductor cooler 503 is located inside the air intake. The air intake frame 501 is located on the outside; a water collection box 504 is fixedly installed inside the bottom side of the air intake frame 501; a drain pipe 505 is fixedly installed at the bottom of the water collection box 504; an air guide plate A506 is fixedly installed inside the air intake frame 501, and three sets of air guide plates A506 are arranged in a straight line; an air guide plate B507 is fixedly installed inside the air intake frame 501, and two sets of air guide plates B507 are arranged in a straight line; the air guide plates B507 and A506 are staggered, and an S-shaped channel is formed between the air guide plates B507 and A506; its specific function is: the S-shaped channel formed by the air guide plates A506 and B507 prolongs the residence time of air in the air intake frame 501, so that the air is fully cooled; it can cause the moisture contained in the air to liquefy due to the temperature dropping below the dew point, thereby ensuring the dryness of the air entering the cabinet 1.

[0036] The specific usage and function of this embodiment: In this invention, when in use, the starting motor drives the double-headed screw 402 to rotate. The rotation of the double-headed screw 402 causes the adjusting seat 403 to move up and down along the vertical frame 401. The two sets of adjusting seats 403 drive the two sets of adjusting plates 404 to rotate synchronously in opposite directions. The adjusting plate 404 drives the mounting plate 406 to move through the connecting seat 405. At the same time, the guide rod 303 slides in the guide seat 302, which guides and limits the mounting plate 406, ensuring that the mounting plate 406 moves smoothly to the appropriate position. This allows the mounting plate 406 to extend out of the cabinet 1, increasing the working space and facilitating the installation of electrical components. The electrical components to be installed are installed reasonably and neatly on the mounting plate 406 according to the design requirements, and the connecting cables of the electrical components are organized into the cable management groove 407 to avoid the cables from being messy and tangled, affecting the distribution of electrical components. Heat and subsequent maintenance; After installation, close the cabinet door 101, so that the locking rod 204 is movable in the locking hook 102, and then press the handle 202 to make the handle 202 horizontal, so that the locking rod 204 closes the cabinet door 101 through the locking hook 102; During the operation of the device, the temperature sensor 105 will monitor the temperature inside the cabinet 1 in real time and transmit the temperature signal to the control module 106; When the temperature exceeds the set safety threshold, the control module 106 will automatically start the cooling fan 603, and the cooling fan 603 will use the wind power to push open the sealing plate 608; so that the hot air inside the cabinet 1 is discharged and the internal temperature is reduced; Outside air enters the cabinet 1 through the air intake frame 501; The air first passes through the dustproof mesh plate 502 to filter out dust and other impurities, and then enters the S formed by the air guide plate A506 and the air guide plate B507. The S-shaped channel allows air to fully contact the cooling surface of the semiconductor cooler 503, exchanging heat and lowering the air temperature. Simultaneously, moisture in the air liquefies upon cooling and falls into the water collection box 504, exiting through the drain pipe 505. If adjustment of the air intake or temperature is required, the cooling power of the semiconductor cooler 503 can be adjusted, or a different specification of dustproof mesh plate 502 can be replaced. When the internal temperature of the cabinet 1 is normal, the control module 106 controls the cooling fan 603 to stop operating. This ensures that the sealing plate 608 is tightly fitted to the outside of the exhaust bracket 601 under the action of the spring, and the cooperation between the sealing ring B6010 and the sealing groove B609 ensures a tight seal, effectively preventing external dust from entering the cabinet 1 from the cooling fan 603.

Claims

1. A risk mitigation device for the control circuit of a coal feeder, characterized in that, include: Cabinet (1); a locking structure (2) is fixedly installed on the outside of the cabinet (1), and a limit component (3) is fixedly installed inside the cabinet (1), and an installation structure (4) is also fixedly installed inside the cabinet (1); an air intake mechanism (5) is fixedly installed inside one side of the cabinet (1), and an exhaust mechanism (6) is fixedly installed on the other side of the cabinet (1); a temperature sensor (105) is fixedly installed at the bottom inside the cabinet (1), and a control module (106) is fixedly installed at the top of the cabinet (1), and the control module (106) and the temperature sensor (105) are electrically connected; The exhaust mechanism (6) includes: an exhaust frame (601), a fixing frame (602), a cooling fan (603), a fixing cylinder (604), and a sealing plate (608); the exhaust frame (601) is fixedly installed on one side of the cabinet (1); the fixing frame (602) is fixedly installed inside the exhaust frame (601); the cooling fan (603) is fixedly installed inside the fixing frame (602), and the cooling fan (603) is arranged in a straight line, and the cooling fan (603) is electrically connected to the control module (106); the fixing cylinder (604) is fixedly installed at the top and bottom of the exhaust frame (601), and four sets of fixing cylinders (604) are arranged symmetrically; the sealing plate (608) is movably installed on the outside of the exhaust frame (601), and the outside of the sealing plate (608) is in contact with the outside of the exhaust frame (601).

2. The risk mitigation device for the coal feeder control circuit according to claim 1, characterized in that: The cabinet (1) is rotatably provided with a cabinet door (101) on the outside, and a locking hook (102) is fixedly provided on the outside of the cabinet door (101), and two sets of locking hooks (102) are symmetrically provided.

3. The risk mitigation device for the coal feeder control circuit according to claim 1, characterized in that: The cabinet (1) has a sealing groove A (103) inside one side, and a sealing ring A (104) is fixedly installed inside the cabinet door (101), and the sealing ring A (104) is movably installed inside the sealing groove A (103).

4. The risk mitigation device for the coal feeder control circuit according to claim 2, characterized in that: The locking structure (2) includes: a locking seat (201), a handle (202), a connecting post (203), a locking rod (204), and a limiting nut (205); the locking seat (201) is fixedly installed on the outside of the cabinet (1); the end of the handle (202) is rotatably installed on the inside of the locking seat (201); the connecting post (203) is rotatably installed inside the handle (202); the two ends of the locking rod (204) are movably installed inside the connecting post (203), and the locking rod (204) is set as an inverted U-shape, and the locking rod (204) is movably installed inside the locking hook (102); the limiting nut (205) is installed on the outside of the two ends of the locking rod (204) by threaded connection, and the outside of the limiting nut (205) is in contact with the outside of the connecting post (203).

5. The risk mitigation device for the coal feeder control circuit according to claim 1, characterized in that: The limiting component (3) includes: a limiting frame (301), a guide seat (302), a guide rod (303), and a limiting plate (304); the limiting frame (301) is fixedly installed inside the cabinet (1); the guide seat (302) is fixedly installed on both sides of the limiting frame (301); the guide rod (303) is slidably installed inside the guide seat (302), and two sets of guide rods (303) are symmetrically installed; the limiting plate (304) is fixedly installed outside the guide rod (303).

6. The risk mitigation device for the coal feeder control circuit according to claim 5, characterized in that: The installation structure (4) includes: a vertical frame (401), a double-ended screw (402), an adjusting seat (403), an adjusting plate (404), a connecting seat (405), an mounting plate (406), and a cable management channel (407); the vertical frame (401) is fixedly installed inside the cabinet (1); the double-ended screw (402) is rotatably installed between the vertical frame (401) and the cabinet (1), and the double-ended screw (402) is fixedly installed at the end of the motor device shaft, and the motor device is fixedly installed at the top of the cabinet (1); the adjusting seat (403) is slidably installed through a dovetail groove. Inside the vertical frame (401), the adjusting seat (403) is connected to the outside of the double-headed screw (402) by a threaded connection; the adjusting plate (404) is rotatably set outside the adjusting seat (403); the connecting seat (405) is rotatably set at the end of the adjusting plate (404), and the connecting seat (405), the adjusting plate (404), and the adjusting seat (403) are all symmetrically arranged in two sets; the mounting plate (406) is fixedly set between the connecting seat (405) and the end of the guide rod (303); the cable tray (407) is fixedly set on the mounting plate (406).

7. The risk mitigation device for the coal feeder control circuit according to claim 1, characterized in that: The air intake mechanism (5) includes: an air intake frame (501), a dustproof mesh plate (502), a semiconductor cooler (503), a water collection box (504), and a drain pipe (505); the air intake frame (501) is fixedly installed inside the other side of the cabinet (1); the dustproof mesh plate (502) is fixedly installed inside the air intake frame (501); the semiconductor cooler (503) is fixedly installed on both sides of the air intake frame (501), and two sets of semiconductor coolers (503) are symmetrically arranged; the cooling surface of the semiconductor cooler (503) is located inside the air intake frame (501), and the heating surface of the semiconductor cooler (503) is located outside the air intake frame (501); the water collection box (504) is fixedly installed inside the bottom side of the air intake frame (501); and the drain pipe (505) is fixedly installed at the bottom of the water collection box (504).

8. The risk mitigation device for the coal feeder control circuit according to claim 7, characterized in that: The air intake mechanism (5) further includes: air guide plate A (506) and air guide plate B (507); air guide plate A (506) is fixedly installed inside the air intake frame (501), and three sets of air guide plates A (506) are arranged in a straight line; air guide plate B (507) is fixedly installed inside the air intake frame (501), and two sets of air guide plates B (507) are arranged in a straight line; air guide plate B (507) and air guide plate A (506) are arranged in an alternating manner, and an S-shaped channel is formed between air guide plate B (507) and air guide plate A (506).

9. The risk mitigation device for the coal feeder control circuit according to claim 1, characterized in that: The exhaust mechanism (6) further includes: a sliding rod (605), a baffle (606), and a connecting seat (607); the sliding rod (605) is slidably disposed inside the fixed cylinder (604); the baffle (606) is fixedly disposed at the end of the sliding rod (605), and the baffle (606) is slidably disposed inside the fixed cylinder (604); a spring is disposed between the baffle (606) and the inner side of the fixed cylinder (604), and the spring is located outside the sliding rod (605); the connecting seat (607) is fixedly disposed at the top of the sliding rod (605), and the connecting seat (607) is fixedly connected to the sealing plate (608).

10. The risk mitigation device for the coal feeder control circuit according to claim 1, characterized in that: The exhaust mechanism (6) further includes: a sealing groove B (609) and a sealing ring B (6010); the sealing groove B (609) is opened inside one side of the exhaust frame (601); the sealing ring B (6010) is fixedly installed inside the sealing plate (608), and the sealing ring B (6010) is movably installed inside the sealing groove B (609).