Dust suppression device for conveying equipment

Abstract

The utility model discloses a dust suppression device for conveying equipment, which is characterized by comprising a mounting bracket, connecting pipelines are distributed on the mounting bracket, one end of each connecting pipeline is connected with a water supply pipe, and the other end of each connecting pipeline is connected with a dry fog spray head. The atomizing spray head atomizes water into micron-sized dry fog particles through high-pressure air, and the micron-sized dry fog particles are combined with dust particles to be coagulated and settled, so that dust diffusion is effectively inhibited. A filter assembly and a backwashing assembly are arranged in the connecting pipeline, and the filter assembly comprises a filter element cylinder and a filter disc and can intercept impurities and prevent the spray head from being blocked. The backwashing assembly is composed of a one-way valve assembly, a washing mechanism and the like and is matched with the flow sensor, and when the flow is reduced to a set threshold value, the filter disc can be intelligently and reversely washed, and impurities are discharged through a sewage outlet. In addition, the position of the connecting frame on the mounting bracket can be adjusted through a screw rod, a motor and a driving cylinder so as to adjust the distance between the connecting pipelines. The device ensures uniform and stable spraying, reduces the workload of manual maintenance, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of spray dust suppression technology, specifically to a dust suppression device used on conveying equipment. Background Technology

[0002] Minerals or materials containing powdery dust, such as those found in coal mines, are currently typically transported using conveyor belts. During transport, the minerals bounce and jolt along the conveyor belt, causing the powdery dust adhering to them to disperse and create dust storms. These dust storms not only severely damage the surrounding environment but can also cause respiratory illnesses and other health problems if inhaled. Therefore, dry fog dust suppression devices are installed on existing conveyor belts to effectively suppress dust pollution.

[0003] Existing dry fog dust suppression devices are typically installed on one side or above a conveyor belt. Their core components include spray nozzles, a water supply system, and an air compression system. The equipment uses high-pressure airflow to atomize water into extremely fine dry fog particles, forming a uniform spray surface. When dust particles come into contact with the dry fog particles, because the particle sizes are similar, the dust particles agglomerate under Brownian motion, increasing their weight and settling, thus achieving a dust suppression effect.

[0004] However, dry fog dust suppression equipment still has certain problems during long-term operation. One issue is that the spray heads typically use industrial water, which often contains a large amount of impurities such as silt and rust. These impurities easily accumulate in the fine nozzles of the spray head, causing blockage, affecting the spraying effect, and even causing equipment malfunction, thus affecting the normal use of the spray head. Utility Model Content

[0005] This utility model proposes a dust suppression device for use on conveying equipment, which solves the problem in related technologies that impurities in water will clog the spray head and affect the normal use of the spray head.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dust suppression device for use on conveying equipment, comprising a mounting bracket disposed on one side of an external conveyor belt, wherein the mounting bracket is provided with a plurality of connecting pipes distributed along the length of the conveyor belt, one end of each connecting pipe is connected to a water supply pipe and the other end is connected to a spray head, wherein a filter assembly and a backwashing assembly cooperating with the filter assembly are disposed within the connecting pipe, the backwashing assembly being used to backwash the filter assembly; further comprising a flow sensor disposed between the filter assembly and the spray head, the flow sensor being connected to the backwashing assembly through a control module for controlling the start and stop of the backwashing assembly.

[0007] The present invention is further configured such that the filter assembly includes a filter cartridge sleeved inside a connecting pipe, and a plurality of filter plates are spaced apart inside the filter cartridge.

[0008] The present invention is further configured such that the backwashing assembly includes a one-way valve assembly disposed between the water supply pipe and the filter assembly, and a flushing mechanism disposed between the filter assembly and the spray head. The one-way valve assembly is used to allow liquid to flow unidirectionally from the water supply pipe to the spray head, and the flushing mechanism is used to guide the liquid in the water supply pipe into the connecting pipe. It also includes a drain port disposed between the filter assembly and the one-way valve assembly, and a sealing mechanism linked to the one-way valve assembly is provided at the drain port. The flow sensor is electrically connected to the flushing mechanism. When the flow sensor controls the flushing mechanism to introduce water into the connecting pipe, the one-way valve assembly closes and drives the sealing mechanism to open the drain port.

[0009] The present invention is further configured such that the one-way valve assembly includes an end cap disposed at the end of the connecting pipe, the end cap having an inlet connected to the water supply pipe; it also includes a plug slidably disposed within the connecting pipe, the plug including a blocking head capable of blocking the inlet, the blocking head being conical, having an annular piston plate disposed around its periphery, the piston plate having a flow port corresponding to the end face of the end cap, the end face of the end cap capable of sealing the flow port; and it also includes a return spring disposed between the end cap and the plug.

[0010] The present invention is further configured such that the drain outlet is disposed between the plug and the filter assembly, the sealing mechanism includes a sealing plate slidably disposed in the connecting pipe, the sealing plate is provided with a discharge port corresponding to the position of the drain outlet, and the discharge port can be misaligned with the drain outlet; the sealing plate is connected to the plug.

[0011] The present invention is further configured such that the sealing plate is slidably disposed between the filter element cylinder and the connecting pipe, a gap is formed between a plurality of filter plates inside the filter element cylinder, a through hole is provided on the inner wall of the filter element cylinder located between the gaps, a drain port corresponding to the position of the through hole is provided on the connecting pipe, and a plurality of discharge ports corresponding to the position of the through hole and which can be staggered are provided on the sealing plate.

[0012] The present invention is further provided with a sealing gasket on the periphery of the inner wall of the discharge port.

[0013] The present invention is further configured such that the rinsing mechanism includes a water inlet pipe disposed between the spray head and the filter assembly, and the water inlet pipe is connected to the water supply pipe and the end via a three-way valve.

[0014] In summary, the beneficial effects of this utility model are as follows:

[0015] Compared with existing technologies, this application effectively intercepts impurities such as mud, rust, etc. in the water supply pipe before they enter the spray head by installing a filter assembly inside the connecting pipe, thereby preventing spray head clogging and ensuring the uniformity and stability of the spray. The filter assembly consists of a filter cartridge and multiple filter plates. When water flows through the filter cartridge, impurities are blocked by the filter plates, while clean water flows smoothly to the spray head, effectively suppressing dust on the conveyor belt. By using a filter assembly corresponding to the spray head, clogging of the spray head can be effectively avoided during use. At the same time, when one filter assembly needs maintenance and cleaning, it will not affect the normal operation of other spray heads, thus avoiding disruption to the normal operation of the equipment.

[0016] Simultaneously, a backwashing component is installed within the connecting pipeline. This component is intelligently controlled by a flow sensor and a control module. When the flow sensor detects that the water flow from the spray head has dropped to a set threshold, the control module triggers the backwashing component, causing the water flow in the supply pipe to reverse and pass through the filter cartridge, flushing impurities on the filter elements. The flushed impurities are discharged through a drain port that automatically opens via a one-way valve assembly and sealing mechanism, ensuring that the filter element maintains good filtration capacity and preventing clogging issues caused by long-term use. This reduces the workload of operators and makes the spray dust suppression device more convenient to use. Attached Figure Description

[0017] Figure 1 This is a usage state diagram of Embodiment 1.

[0018] Figure 2 This is a three-dimensional structural diagram of Example 1.

[0019] Figure 3 yes Figure 2 Enlarged view of the structure at point A.

[0020] Figure 4 This is a three-dimensional view of the connecting pipes in Embodiment 1.

[0021] Figure 5 This is a diagram of the internal structure of the connecting pipe in Embodiment 1.

[0022] Figure 6 This is a structural diagram of the one-way valve assembly in Embodiment 1.

[0023] Figure 7 This is an enlarged view of the discharge port in Example 1.

[0024] Reference numerals: 100, conveyor belt; 1, mounting bracket; 2, connecting pipe; 3, water supply pipe; 4, spray head; 5, filter assembly; 51, filter cartridge; 52, filter disc; 6, backwash assembly; 61, one-way valve assembly; 611, end; 612, water inlet; 613, piston plate; 614, blocking head; 615, flow port; 616, end face; 617, return spring; 62, flushing mechanism; 621, water inlet pipe; 622, three-way valve; 7, sealing gasket; 8, drain outlet; 9, sealing mechanism; 91, sealing plate; 92, discharge outlet; 93, through hole; 10, sleeve; 11, water outlet; 17, flow sensor. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of this utility model.

[0026] like Figure 1-7 As shown, this embodiment discloses a dust suppression device used on a conveyor equipment, including a mounting bracket 1 disposed on one side of an external conveyor belt 100. The mounting bracket 1 is provided with several connecting pipes 2 distributed along the length of the conveyor belt 100. One end of each connecting pipe 2 is connected to a water supply pipe 3, and the other end is connected to a spray head 4. Water is transported from the water supply pipe 3 to the connecting pipe 2 via the spray head 4, and then from the connecting pipe 2 to the spray head 4, allowing the spray head 4 to spray water mist above the conveyor belt 100, thereby suppressing the diffusion of dust generated during the conveying process. The spray head 4 can be a dry fog spray head, which is existing technology and therefore will not be described in detail in this application. Simultaneously, in the process of using a dry fog spray head, an air pipe connected to a compressed air source is also provided on the connecting pipe. Compressed air enters the connecting pipe through the air pipe, and then enters the dry fog spray head along with the water. The water is then atomized into micron-sized dry fog particles through gas-liquid mixing.

[0027] like Figure 2-4 As shown, a filter assembly 5 and a backwash assembly 6 that cooperate with the filter assembly 5 are provided in the connecting pipe 2. The backwash assembly 6 is used to backwash the filter assembly 5. It also includes a flow sensor 17 disposed between the filter assembly 5 and the spray head 4. The flow sensor 17 is connected to the backwash assembly 6 through the control module and is used to control the start and stop of the backwash assembly 6.

[0028] Specifically, such as Figure 5As shown, the filter assembly 5 includes a filter cartridge 51 fitted inside the connecting pipe 2. Several filter plates 52 are spaced apart inside the filter cartridge 51. The size of the filter holes of the filter plates 52 can be gradually reduced from the water supply pipe 3 to the spray head 4. When water flows through the filter cartridge 51, impurities in the water will be intercepted by the filter plates 52, thereby ensuring that the water delivered to the spray head 4 is clean and preventing the spray head 4 from being blocked by impurities during use, which would affect normal use. This allows the spray head 4 to spray water mist stably and maintain a continuous and effective dust suppression effect.

[0029] The backwashing assembly 6 includes a one-way valve assembly 61 disposed between the water supply pipe 3 and the filter assembly 5, and a flushing mechanism 62 disposed between the filter assembly 5 and the spray head 4. The one-way valve assembly 61 is used to allow the liquid to flow unidirectionally from the water supply pipe 3 to the spray head 4.

[0030] Specifically, such as Figure 6 As shown, the one-way valve assembly 61 includes an end cap 611 disposed at the end of the connecting pipe 2, with an inlet 612 connected to the water supply pipe 3 on the end cap 611; it also includes a plug slidably disposed in the connecting pipe 2, the plug including a blocking head 614 that can block the inlet 612, the blocking head 614 being conical, with an annular piston plate 613 disposed on its periphery, the piston plate 613 having a flow port 615, the flow port 615 corresponding to the end face 616 of the end cap 611, the end face 616 of the end cap 611 sealing the flow port 615; and a return spring 617 disposed between the end cap 611 and the plug.

[0031] When the water supply pipe 3 is supplying water normally, the water flows into the end 611 through the inlet 612 and pushes the plug, which is slidably installed in the connecting pipe 2, to slide along the axial direction of the connecting pipe 2. Under the action of water pressure, the blocking head 614 on the plug disengages from the inlet 612, and the water can smoothly pass through the flow port 615 on the piston plate 613, enter the filter assembly 5, and finally be delivered to the spray head 4 to achieve the dust suppression function. Because the blocking head 614 has a conical structure, its design allows it to quickly pass through the inlet 612 under water pressure, and makes the water flow evenly distributed, improving the water flow efficiency and ensuring the normal operation of the spray system.

[0032] When backwashing is required, the water supply direction changes, and the flushing mechanism 62 is activated, causing the water flow to reverse from the direction of the spray head 4 into the filter assembly 5. At this time, the pressure of the reverse water flow acts on the plug, causing the plug to slide in the opposite direction. The blocking head 614 reseals the inlet 612, thereby preventing impurities from flowing back into the water supply pipe 3 and ensuring the thoroughness of the cleaning process. At the same time, the end face 616 of the end head 611 fits tightly against the flow port 615 on the piston plate 613, completely blocking the normal water flow path. At this time, the water flow can no longer flow towards the spray head 4, but is guided to the drain port 8, and carries the impurities that have fallen off during the flushing process out of the device, thus cleaning the filter assembly 5.

[0033] Furthermore, in order to improve the sealing effect between the piston plate 613 and the end face 616, a sealing gasket 7 is provided on the end face 616 of the end head 611. The sealing gasket 7 is also provided with a protrusion corresponding to the position and size of the flow hole 93, which can better seal the flow hole 93.

[0034] To ensure that the one-way valve assembly 61 can quickly return to its initial state after a change in water flow direction, a return spring 617 is installed between the end 611 and the plug. After flushing, when the water flow direction returns to normal, the return spring 617 generates elastic force, causing the plug to rebound axially along the connecting pipe 2, causing the plug head 614 to disengage from the inlet 612 again. At the same time, the end face 616 of the end 611 separates from the flow port 615 on the piston plate 613, restoring the water flow channel and allowing the device to re-enter the spray dust suppression working state.

[0035] The flushing mechanism 62 is used to guide the liquid in the water supply pipe 3 into the connecting pipe 2. Specifically, such as... Figure 4-5 As shown, the rinsing mechanism 62 includes a water inlet pipe 621 disposed between the spray head 4 and the filter assembly 5. The water inlet pipe 621 is connected to the water supply pipe 3 and the end 611 via a three-way valve 622. The three-way valve 622 is an electrically operated three-way valve 622 that is electrically connected to the flow sensor 17.

[0036] When the conveying equipment is operating normally, the water in the water supply pipe 3 is filtered by the filter assembly 5 and then enters the spray head 4 for dust suppression. During this process, the filter cartridge 51 and its internal filter plates 52 in the filter assembly 5 continuously trap impurities in the water. As the usage time increases, impurities gradually accumulate on the filter plates 52, leading to a decrease in water flow. To monitor this situation, a flow sensor 17 is installed between the filter assembly 5 and the spray head 4 to detect the water flow rate through the filter assembly 5 in real time. When the flow sensor 17 detects that the water flow rate has dropped to a preset threshold, it indicates that the filter cartridge 51 may be clogged due to impurity accumulation. At this time, the flow sensor 17 sends a signal to the control module, and the control module then triggers the flushing mechanism 62 to start the backwashing process.

[0037] When the flushing mechanism 62 is activated, the three-way valve 622 switches the water flow direction, so that the clean water in the water supply pipe 3 no longer flows directly to the spray head 4, but instead enters the connecting pipe 2 through the water inlet pipe 621 and backwashes the filter assembly 5. After the reverse water flow enters the filter assembly 5, it performs high-pressure flushing on the filter discs 52 inside the filter cartridge 51, peeling off the attached impurities and carrying them to the drain port 8. This achieves timely flushing of the filter discs 52, reduces maintenance by personnel, and since the multiple spray heads 4 are independent, a temporary stoppage of a single spray head 4 will not affect the normal operation of the equipment.

[0038] like Figure 6 As shown, it also includes a drain port 8 located between the filter assembly 5 and the one-way valve assembly 61. A sealing mechanism 9, which is linked to the one-way valve assembly 61, is provided at the drain port 8. To ensure that impurities can be discharged smoothly, the opening of the drain port 8 is linked to the one-way valve assembly 61. In backwashing mode, the one-way valve assembly 61 closes the inlet 612 and simultaneously drives the sealing mechanism 9 to open the drain port 8.

[0039] like Figure 5-6 As shown, the sealing mechanism 9 includes a sealing plate 91 slidably disposed within the connecting pipe 2. The sealing plate 91 has a discharge port 92 corresponding to the drain port 8. During normal operation, the discharge port 92 is misaligned with the drain port 8, keeping the drain port 8 closed to prevent water leakage. When backwashing is initiated, the sealing plate 91 slides under water pressure or the linkage of the one-way valve assembly 61, aligning the discharge port 92 with the drain port 8. The flushing water flows smoothly out of the drain port 8, carrying impurities out of the system, thus completing the cleaning process of the filter assembly 5. After flushing, the control module controls the flushing mechanism 62 to stop water intake. At this time, the plug reset will cause the sealing plate 91 to reset, resealing the drain port 8, and the system returns to normal operation. The linkage design of the one-way valve assembly 61 and the sealing mechanism 9 ensures that the drain port 8 can open promptly during flushing and close quickly after flushing, preventing secondary pollution or water leakage. Meanwhile, the staggered arrangement of the sealing plate 91 and the application of the sealing gasket 7 further improve the sealing performance of the system under different working conditions, ensuring that the equipment can smoothly switch between spray dust suppression and flushing sewage discharge modes, and ensuring long-term stable operation of the device.

[0040] To further improve the cleaning of the filter elements 52 and filter cartridge 51, a sealing plate 91 is slidably disposed between the filter cartridge 51 and the connecting pipe 2. Gaps are formed between the filter elements 52 inside the filter cartridge 51, and through holes 93 are located within these gaps on the inner wall of the filter cartridge 51. A drain port 8 is correspondingly provided on the connecting pipe 2, and the sealing plate 91 has several discharge ports 92 that correspond to the through holes 93 and can be staggered. When the flushing mechanism 62 is not activated, the discharge ports 92 on the sealing plate 91 are in a staggered state, preventing water from entering the drain ports 8 and preventing leakage. In backwashing mode, the sealing plate 91 slides and adjusts to align the discharge ports 92 with the through holes 93 and the drain ports 8, ensuring smooth discharge of flushing water. This ensures that impurities from each layer of filter elements 52 can be smoothly discharged from the connecting pipe 2, resulting in better cleaning performance.

[0041] Outside the connecting pipe 2, there is a sleeve 10 that covers all the sewage outlets 8. The sleeve 10 is equipped with a water outlet 11, which can be connected to an external drainage pipe to facilitate the smooth discharge of sewage.

[0042] like Figure 7 As shown, a sealing gasket 7 is provided on the inner wall of the discharge port 92. Under the action of water pressure in the connecting pipe 2, the sealing gasket 7 can seal the gap, thereby further improving the sealing effect.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust suppression device for use on a conveying equipment, comprising a mounting bracket (1) disposed on one side of an external conveyor belt (100), wherein the mounting bracket (1) is provided with a plurality of connecting pipes (2) distributed along the length direction of the conveyor belt (100), one end of each connecting pipe (2) is connected to a water supply pipe (3), and the other end is connected to a spray head (4), characterized in that, The connecting pipe (2) is provided with a filter assembly (5) and a backwash assembly (6) that cooperates with the filter assembly (5). The backwash assembly (6) is used to backwash the filter assembly (5). It also includes a flow sensor (17) disposed between the filter assembly (5) and the spray head (4). The flow sensor (17) is connected to the backwash assembly (6) through the control module and is used to control the start and stop of the backwash assembly (6).

2. A dust suppression device for use on a conveying equipment according to claim 1, characterized in that, The filter assembly (5) includes a filter cartridge (51) sleeved inside the connecting pipe (2), and a plurality of filter elements (52) are spaced apart inside the filter cartridge (51).

3. A dust suppression device for use on a conveying equipment according to claim 2, characterized in that, The backwash assembly (6) includes a one-way valve assembly (61) disposed between the water supply pipe (3) and the filter assembly (5), and a flushing mechanism (62) disposed between the filter assembly (5) and the spray head (4). The one-way valve assembly (61) is used to allow liquid to flow unidirectionally from the water supply pipe (3) to the spray head (4), and the flushing mechanism (62) is used to guide the liquid in the water supply pipe (3) into the connecting pipe (2). It also includes a drain port (8) disposed between the filter assembly (5) and the one-way valve assembly (61). A sealing mechanism (9) linked with the one-way valve assembly (61) is provided at the drain port (8). The flow sensor (17) is electrically connected to the flushing mechanism (62). When the flow sensor (17) controls the flushing mechanism (62) to introduce water into the connecting pipe (2), the one-way valve assembly (61) closes and drives the sealing mechanism (9) to open the drain port (8).

4. A dust suppression device for use on a conveying equipment according to claim 3, characterized in that, The one-way valve assembly (61) includes an end cap (611) disposed at the end of the connecting pipe (2), the end cap (611) being provided with an inlet (612) connected to the water supply pipe (3); it also includes a plug slidably disposed in the connecting pipe (2), the plug including a blocking head (614) that can block the inlet (612), the blocking head (614) being conical, and having an annular piston plate (613) disposed on its periphery, the piston plate (613) being provided with a flow port (615), the flow port (615) corresponding to the end face (616) of the end cap (611), the end face (616) of the end cap (611) being able to seal the flow port (615); it also includes a return spring (617) disposed between the end cap (611) and the plug.

5. A dust suppression device for use on a conveying equipment according to claim 4, characterized in that, The drain outlet (8) is located between the plug and the filter assembly (5). The sealing mechanism (9) includes a sealing plate (91) that is slidably disposed in the connecting pipe (2). The sealing plate (91) is provided with a discharge port (92) corresponding to the position of the drain outlet (8). The discharge port (92) can be misaligned with the drain outlet (8). The sealing plate (91) is connected to the plug.

6. A dust suppression device for use on a conveying equipment according to claim 5, characterized in that, The sealing plate (91) is slidably disposed between the filter cartridge (51) and the connecting pipe (2). A gap is formed between a number of filter plates (52) inside the filter cartridge (51). A through hole (93) located between the gap is provided on the inner wall of the filter cartridge (51). A drain port (8) corresponding to the position of the through hole (93) is provided on the connecting pipe (2). A number of discharge ports (92) corresponding to the position of the through hole (93) and which can be staggered are provided on the sealing plate (91).

7. A dust suppression device for use on a conveying equipment according to claim 6, characterized in that, A sealing gasket (7) is provided on the inner wall periphery of the discharge port (92).

8. A dust suppression device for use on a conveying equipment according to claim 4, characterized in that, The rinsing mechanism (62) includes an inlet pipe (621) disposed between the spray head (4) and the filter assembly (5), and the inlet pipe (621) is connected to the water supply pipe (3) and the end (611) via a three-way valve (622).

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