A dust suction point self-cleaning filter device

Abstract

This utility model relates to the field of dust collector technology, specifically a self-cleaning filter device for dust collection points. It includes a cover plate, a valve, and a maintenance device. The cover plate has a through hole on its surface, and the valve is disposed on the surface of the through hole. The maintenance device is disposed on the surface of the valve and includes a buckle fixedly connected to the cover plate. Hooks are fixedly connected to both ends of the valve, and the hooks are inserted into the buckle. There are two hooks arranged symmetrically. An insert plate is fixedly connected to the lower surface of the valve, and the insert plate has a slot on its surface. The lower surface of the insert plate is chamfered. This utility model creates a valve by opening a hole on the side of the material guide chute. Combined with the insert rod, slot, and buckle structure, the valve can be opened and closed quickly. The dust filter can be inspected and maintained without disassembling the top cover plate of the material guide chute, reducing the labor intensity of on-site cleaning, improving maintenance efficiency, and reducing the safety hazards associated with disassembling the cover plate.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, and in particular to a self-cleaning filter device for dust collection points. Background Technology

[0002] Dust collectors in sintering plants are crucial environmental protection equipment in the sintering production process. They are used to capture and purify dust-laden exhaust gases generated during sintering. During operation, dust-laden gas enters through the inlet. Coarse dust particles settle into the ash hopper due to gravity, while fine dust enters the filtration chamber with the airflow. After being filtered by filter bags and other filter elements, the dust is trapped, and the purified gas is discharged from the outlet. Based on their working principles, there are baghouse dust collectors, which rely on filter bags to filter dust with a purification efficiency of over 99% and can capture fine particles. Electrostatic precipitators, on the other hand, use a high-voltage electric field to charge the dust and adsorb it onto the collecting plates. These types of dust collectors can effectively treat exhaust gases generated during raw material loading and unloading, mixing, sintering, and other processes, greatly reducing dust emissions, protecting the workshop environment and employee health, and helping sintering plants meet environmental standards.

[0003] However, since there are no inspection holes at the dust collector's suction points, large but lightweight items are easily sucked onto the protective net, resulting in poor dust removal effect and dust overflow that pollutes the environment. In severe cases, it affects more than 80% of the dust removal efficiency. In addition, cleaning the work area requires disassembling the top cover of the feed chute, which is time-consuming, labor-intensive, and poses safety hazards. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the existing technology where dust collectors lack inspection holes at the dust collection points, making it easy for large and lightweight items to be sucked onto the protective net, resulting in poor dust collection effect, dust overflow and environmental pollution, and in severe cases affecting more than 80% of the dust collection efficiency. In addition, cleaning the work area requires disassembling the top cover of the guide chute, which is time-consuming, labor-intensive and poses safety hazards. Therefore, a self-cleaning filter device for the dust collection point is proposed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a self-cleaning filter device for dust collection points, comprising a cover plate, a valve, and a maintenance device. The cover plate has a through hole on its surface, the valve is disposed on the surface of the through hole, and the maintenance device is disposed on the surface of the valve. The maintenance device includes a buckle, which is fixedly connected to the cover plate. Hooks are fixedly connected to both ends of the valve, and the hooks are inserted into the buckle. There are two hooks, symmetrically arranged. An insert plate is fixedly connected to the lower surface of the valve, and a slot is formed on the surface of the insert plate. The lower surface of the insert plate is chamfered. By setting up the maintenance device and creating the valve by opening a hole on the side of the material guide chute, and using the insert rod, slot, buckle, and other structures, the valve can be opened and closed quickly. The dust filter can be inspected and maintained without disassembling the top cover plate of the material guide chute, reducing the labor intensity of on-site cleaning, improving maintenance efficiency, and reducing the safety hazards caused by disassembling the cover plate.

[0006] Preferably, a retaining sleeve is fixedly connected to one end of the cover plate near the insert plate. A rotating rod is rotatably connected to the surface of the retaining sleeve. By setting the insert plate, the retaining sleeve is inserted after the valve is closed. The retaining sleeve is tilted by the force of the insert rod against the insert rod until the insert rod engages with the retaining groove. The elastic force of the torsion spring compresses the insert rod and hooks it into the retaining groove, thereby helping to fix the valve and ensuring the relative position of the valve and the through hole is stable. This provides a structural basis for the sealing function of the subsequent sealing components and prevents the valve from shifting during equipment operation or vibration, which would lead to sealing failure.

[0007] Preferably, a plug rod is fixedly connected to the surface of the rotating rod. The plug rod engages with a slot on the surface of the insert plate. By setting the plug rod, when the insert plate is inserted into the sleeve and abuts against the plug rod, the plug rod is tilted under force until it engages with the slot. The elastic force of the torsion spring compresses the plug rod and hooks it into the slot, further enhancing the stability of the valve fixation and preventing the valve from loosening during equipment operation or vibration. This ensures the structural stability of the maintenance device in the non-maintenance state and provides basic support for the sealing effect of the subsequent sealing components.

[0008] Preferably, a torsion spring is fitted onto the surface of the rotating rod. The two ends of the torsion spring are fixedly connected to the sleeve and the insert rod, respectively. By setting the torsion spring, after the valve is closed and the insert rod is engaged with the slot, the spring force generated by the release of its own restraint squeezes the insert rod, making the insert rod tightly hooked with the slot. This enhances the engagement and fastening of the insert rod and the slot, prevents the valve from loosening under the vibration or negative pressure of the equipment operation, ensures the stability of the valve in the closed state, and further ensures the overall sealing effect in conjunction with the sealing component, reducing dust leakage.

[0009] Preferably, the surface of the valve is provided with a sealing component, which includes an air pad. The air pad is fixedly connected to one end of the valve, and a hollow tube is fixedly connected to one end of the valve. The surface of the hollow tube is threaded, and a twist cap is threaded onto the surface of the hollow tube. By setting up the sealing component, the cooperation of the air pad, the hollow tube, and the air pad allows the air pad to expand and fit tightly against the through hole after the valve is closed, enhancing the sealing performance between the valve and the through hole, reducing dust leakage, and controlling the gas inlet and outlet with the help of a one-way valve and a twist cap, facilitating the opening and closing of the valve, and ensuring the stability of the dust removal effect.

[0010] Preferably, the hollow tube is connected to the air cushion, and a flexible tube is fixedly connected to the lower surface of the hollow tube. By setting the air cushion, after the valve is closed, the air is inflated by the air balloon to expand it, thereby tightly fitting with the edge of the through hole to form a sealing structure, effectively preventing dust from leaking from the gap between the valve and the through hole, and ensuring the negative pressure environment and dust removal efficiency of the dust removal system.

[0011] Preferably, an inflatable ball is fixedly connected to the lower surface of the flexible tube on the lower surface of the hollow tube, an air hole is opened on the lower surface of the inflatable ball, and a one-way valve is provided inside the inflatable ball.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, a maintenance device is installed, and a door is created by opening a hole on the side of the guide chute below the dust removal point. When the dust screen needs to be cleaned, the insert rod is rotated to disengage from the slot, and then the door is lifted upwards, allowing the hook to disengage from the buckle and be pulled out. The dust screen can then be inspected and maintained through the through hole. After maintenance, the door is resealed with the through hole, the hook is inserted into the buckle, and the insert plate is inserted into the sleeve. The insert plate and the insert rod abut against each other, causing the insert rod to tilt under force until it engages with the slot. The torsion spring loses its restraint and generates elastic force to press the insert rod into the slot, thus fixing the door. By installing the maintenance device and creating a door by opening a hole on the side of the guide chute, along with the insert rod, slot, and buckle, the door can be opened and closed quickly. The dust screen can be inspected and maintained without disassembling the top cover of the guide chute, reducing the labor intensity of on-site cleaning, improving maintenance efficiency, and reducing the safety hazards caused by disassembling the cover.

[0013] In this invention, a sealing component is incorporated. After the valve is closed, the inflatable ball is squeezed, propelling gas into the hollow tube. The gas then enters the inflatable pad through the hollow tube, inflating and tightly sealing against the through-hole, thus reducing dust leakage. Because the inflatable ball contains a one-way valve, gas can only flow out by turning the cap to open the hollow tube. After the gas flows out, the inflatable pad shrinks, allowing the valve to be removed. The sealing component, along with the inflatable ball, hollow tube, and inflatable pad, ensures that the inflatable pad expands and tightly seals against the through-hole after the valve is closed, enhancing the seal between the valve and the through-hole and reducing dust leakage. The one-way valve and cap control the gas flow, facilitating the opening and closing of the valve and ensuring the stability of the dust removal effect. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a self-cleaning filter device for dust collection points; Figure 2 This utility model proposes a self-cleaning filter device for dust collection points. Figure 1 A magnified structural diagram at point A; Figure 3 This utility model provides a schematic diagram of the valve structure of a self-cleaning filter device for dust collection points; Figure 4 This utility model provides a cross-sectional structural diagram of a self-cleaning filter device for dust collection points; Figure 5 This utility model proposes a self-cleaning filter device for dust collection points. Figure 4 A magnified structural diagram at point B.

[0015] Legend: 1. Cover plate; 2. Valve; 3. Maintenance device; 31. Hook; 32. Buckle; 33. Insert plate; 34. Sleeve; 35. Sealing assembly; 351. Inflatable cushion; 352. Hollow tube; 353. Inflatable ball; 354. Twist cap; 36. Insert rod; 37. Rotating rod; 38. Torsion spring. Detailed Implementation

[0016] Please see Figures 1-5 This utility model provides a technical solution: a self-cleaning filter device for dust collection points, including a cover plate 1, a valve 2 and a maintenance device 3. The surface of the cover plate 1 is provided with a through hole, the valve 2 is disposed on the surface of the through hole, and the maintenance device 3 is disposed on the surface of the valve 2.

[0017] In this implementation plan: the maintenance device 3 includes a buckle 32, which is fixedly connected to the cover plate 1. Hooks 31 are fixedly connected to both ends of the valve 2. The hooks 31 are inserted into the buckles 32. There are two hooks 31, which are symmetrically arranged. An insert plate 33 is fixedly connected to the lower surface of the valve 2. The surface of the insert plate 33 has a slot, and the lower surface of the insert plate 33 is chamfered. By setting the maintenance device 3, the valve 2 is made by opening a hole on the side of the guide chute. With the help of the insert rod 36, the slot, the buckle 32 and other structures, the valve 2 can be opened and closed quickly. The dust screen can be inspected and maintained without disassembling the top cover plate 1 of the guide chute, which reduces the labor intensity of the cleaning work, improves the maintenance efficiency, and reduces the safety hazards caused by disassembling the cover plate 1.

[0018] Specifically, a retaining sleeve 34 is fixedly connected to one end of the cover plate 1 near the insert plate 33. A rotating rod 37 is rotatably connected to the surface of the retaining sleeve 34. By setting the insert plate 33, the retaining sleeve 34 is inserted after the valve 2 is closed. The retaining sleeve 34 is inserted into the insert rod 36 by resisting it, causing the insert rod 36 to tilt under force until the insert rod 36 is engaged with the slot. The elastic force of the torsion spring 38 presses the insert rod 36 into the slot, thereby helping to fix the valve 2 and ensuring the relative position of the valve 2 and the through hole is stable. This provides a structural basis for the sealing function of the subsequent sealing assembly 35 and prevents the valve 2 from shifting during equipment operation or vibration, which would lead to sealing failure.

[0019] Specifically, a rod 36 is fixedly connected to the surface of the rotating rod 37. The rod 36 engages with the slot on the surface of the insert plate 33. By setting the rod 36, when the insert plate 33 is inserted into the sleeve 34 and abuts against the rod 36, the rod 36 is tilted under force until it engages with the slot. The elastic force of the torsion spring 38 presses the rod 36 into the slot, further enhancing the stability of the valve 2 and preventing the valve 2 from loosening during equipment operation or vibration. This ensures the structural stability of the maintenance device 3 in the non-maintenance state and provides basic support for the sealing effect of the subsequent sealing assembly 35.

[0020] Specifically, a torsion spring 38 is fitted onto the surface of the rotating rod 37. The two ends of the torsion spring 38 are fixedly connected to the sleeve 34 and the insertion rod 36, respectively. By setting the torsion spring 38, after the valve 2 is closed and the insertion rod 36 is engaged with the slot, the spring force generated by the release of its own restraint squeezes the insertion rod 36, making the insertion rod 36 tightly hook with the slot. This enhances the engagement and fastening of the insertion rod 36 with the slot, prevents the valve 2 from loosening under the vibration or negative pressure of the equipment operation, ensures the stability of the valve 2 in the closed state, and further ensures the overall sealing effect in conjunction with the sealing component 35, reducing dust leakage.

[0021] Specifically, the surface of the valve 2 is provided with a sealing component 35, which includes an air pad 351. The air pad 351 is fixedly connected to one end of the valve 2. A hollow tube 352 is fixedly connected to one end of the valve 2. The surface of the hollow tube 352 is threaded, and a twist cap 354 is threadedly connected to the surface of the hollow tube 352.

[0022] In this embodiment: by setting the sealing component 35, the inflatable ball 353, the hollow tube 352, and the inflatable pad 351 in cooperation, after the valve 2 is closed, the inflatable pad 351 expands and fits tightly with the through hole, which enhances the sealing performance between the valve 2 and the through hole, reduces dust leakage, and controls the gas inlet and outlet with the help of the one-way valve and the twist cap 354, which facilitates the opening and closing of the valve 2 and ensures the stability of the dust removal effect.

[0023] Specifically, the hollow tube 352 is connected to the inflatable cushion 351, and a flexible tube is fixedly connected to the lower surface of the hollow tube 352.

[0024] In this embodiment: by setting an air cushion 351, after the valve 2 is closed, the air inflatable ball 353 is inflated to expand it, thereby tightly fitting with the edge of the through hole to form a sealing structure, effectively preventing dust from leaking from the gap between the valve 2 and the through hole, and ensuring the negative pressure environment and dust removal efficiency of the dust removal system.

[0025] Specifically, an inflatable ball 353 is fixedly connected to the lower surface of the flexible tube on the lower surface of the hollow tube 352. An air hole is opened on the lower surface of the inflatable ball 353, and a one-way valve is installed inside the inflatable ball 353.

[0026] Working principle: By setting up maintenance device 3, a valve 2 is made by opening a hole on the side of the guide chute of the cover plate 1 below the dust removal point. When it is necessary to clean the dust screen, rotate the insert rod 36 to disengage from the slot, then lift the valve 2 upwards, and the hook 31 disengages from the buckle 32, so that the valve 2 can be pulled out. The dust screen can be inspected and maintained through the through hole. After maintenance, the valve 2 is resealed with the through hole, the hook 31 is inserted into the buckle 32, and at the same time, the insert plate 33 is inserted into the sleeve 34. The insert plate 33 abuts against the insert rod 36, and the insert rod 36 is subjected to force. Tilt the rod until it engages with the slot. The torsion spring 38 loses its restraint and generates elastic force to squeeze the rod 36 and hook it into the slot. At this time, the valve 2 is fixed. By setting up the maintenance device 3, the valve 2 is made by opening a hole on the side of the guide chute. With the rod 36, slot, buckle 32 and other structures, the valve 2 can be opened and closed quickly. The dust screen can be inspected and maintained without disassembling the top cover plate 1 of the guide chute. This reduces the labor intensity of the cleaning work and improves the maintenance efficiency. At the same time, it reduces the safety hazards caused by disassembling the cover plate 1. By setting the sealing component 35, after the valve 2 is closed, the inflatable ball 353 is squeezed, and the inflatable ball 353 pushes the gas into the hollow tube 352, and then into the inflatable pad 351 through the hollow tube 352. The inflatable pad 351 inflates and expands, and fits tightly against the through hole, completing the seal and reducing dust leakage. Since the inflatable ball 353 is equipped with a one-way valve, the gas can only flow out by turning the twist cap 354 to open the hollow tube 352. After the gas flows out, the inflatable pad 351 shrinks, and the valve 2 can be removed. By setting the sealing component 35, the cooperation of the inflatable ball 353, the hollow tube 352, and the inflatable pad 351, after the valve 2 is closed, the inflatable pad 351 expands and fits tightly against the through hole, enhancing the sealing performance of the valve 2 and the through hole, reducing dust leakage. The one-way valve and the twist cap 354 control the gas inflow and outflow, making it convenient to open and close the valve 2, and ensuring the stability of the dust removal effect.

Claims

1. A self-cleaning filter device for dust collection points, comprising a cover (1), a shutter (2) and a maintenance device (3), characterized in that: The cover plate (1) has a through hole on its surface. The valve (2) is set on the surface of the through hole. The maintenance device (3) is set on the surface of the valve (2). The maintenance device (3) includes a buckle (32). The buckle (32) is fixedly connected to the cover plate (1). Hooks (31) are fixedly connected to both ends of the valve (2). The hooks (31) are inserted into the buckles (32). There are two hooks (31). The two hooks (31) are symmetrically arranged. A plate (33) is fixedly connected to the lower surface of the valve (2). The plate (33) has a slot on its surface. The lower surface of the plate (33) is chamfered.

2. A self-cleaning filter device according to claim 1, wherein: The cover plate (1) is fixedly connected to a sleeve (34) at one end near the insert plate (33), and a rotating rod (37) is rotatably connected to the surface of the sleeve (34).

3. A self-cleaning filter device according to claim 2, wherein: The rotating rod (37) is fixedly connected to a plug rod (36), which engages with a slot on the surface of the plug plate (33).

4. A self-cleaning filter device according to claim 3, wherein: A torsion spring (38) is fitted on the surface of the rotating rod (37), and the two ends of the torsion spring (38) are fixedly connected to the sleeve (34) and the insert rod (36) respectively.

5. A self-cleaning filter device according to claim 4, wherein: The valve (2) is provided with a sealing component (35), which includes an air pad (351). The air pad (351) is fixedly connected to one end of the valve (2). A hollow tube (352) is fixedly connected to one end of the valve (2). The surface of the hollow tube (352) is threaded, and a twist cap (354) is threaded onto the surface of the hollow tube (352).

6. A self-cleaning filter device according to claim 5, wherein: The hollow tube (352) is connected to the air cushion (351), and a hose is fixedly connected to the lower surface of the hollow tube (352).

7. A self-cleaning filter device according to claim 6, wherein: An inflatable ball (353) is fixedly connected to the lower surface of the hollow tube (352) and the lower surface of the inflatable ball (353) is provided with an air hole. A one-way valve is provided inside the inflatable ball (353).

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