Unpowered dust remover for conveying belt

Abstract

The utility model discloses an unpowered dust remover for a conveying belt, which comprises a rack, the conveying belt, a guide chute, a support roller and a coal dropping pipe, and the rack is also provided with a dust removal chamber, a dust filtration chamber, a sealing skirt edge, a clamping device and a discharge baffle curtain; a sealing top is arranged at the top of the material guide groove, a sealing box is arranged on the outer side of the material guide groove at the starting end, and the dust removal chamber comprises a dust removal feeding pipe, a dust removal discharging pipe and a circular-arc-shaped bent pipe; the dust filtration chamber comprises an inverted V-shaped pipe body, the dust removal feeding pipe and the inverted V-shaped pipe body are both provided with communicating holes and filter screen plates, and flow guide plates are arranged in the dust removal chamber and the dust filtration chamber; the device can effectively control dust escape, reduce pollution to the environment, prolong the service life of a conveying belt, reduce the operation cost of an enterprise and achieve the final purpose of reducing material dust pollution, and has the characteristics of small occupied area, low investment, low power consumption, less maintenance, no need of manual work, no secondary pollution and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal devices, specifically to a conveyor belt non-powered dust collector. Background Technology

[0002] Non-powered dust collection technology is a highly efficient dust removal device suitable for the material discharge port of belt conveyors and belt conveyor transfer stations. Non-powered dust collectors belong to the dry dust collection process and are mainly used in conveyor transfer stations, especially in crushing chambers with large amounts of dust in coal conveying systems. Currently, coal dust pollution from conveyor belts is caused by dust carried up by the impact airflow of the falling material, which then diffuses into the surrounding environment. Under the action of the impact flow, some of the entrained fine dust diffuses and drifts in the surrounding atmosphere due to escape force, which has a certain impact on the working environment. Utility Model Content

[0003] In order to solve one or more technical problems existing in the prior art, the purpose of this application is to provide a conveyor belt non-powered dust collector, which can effectively control dust escape, reduce environmental pollution, extend the service life of the conveyor belt, reduce enterprise operating costs, and achieve the ultimate goal of reducing material dust pollution. It also has the characteristics of small footprint, low investment, low power consumption, low maintenance, no need for manual work, and no secondary pollution.

[0004] To solve the aforementioned technical problems, this application adopts the following technical solution:

[0005] A conveyor belt dust collector includes a frame, a conveyor belt mounted on the frame, several guide troughs mounted on the frame, support rollers at the bottom of the conveyor belt, and a coal drop pipe connected to the starting end of the guide troughs. Material on the upper section of the conveyor belt falls through the coal drop pipe to the end of the conveyor belt and is conveyed forward. Material on both sides of the conveyor belt is limited by the guide troughs. The frame is further provided with a dust removal chamber, a dust filter chamber, a sealing skirt, and a clamping device.

[0006] The top of the guide trough is provided with a sealed cap, and a sealed box is provided on the outside of the guide trough at the starting end. The bottom of the guide trough is located above the conveyor belt to guide the material and control the spread of dust.

[0007] The sealing skirt is installed on both sides of the guide trough along the conveyor belt by the clamping device, and a sealing structure is formed between the conveyor belt and the guide trough by the sealing skirt;

[0008] The frontmost section of the guide chute has a discharge baffle at its outlet. Multiple sections of the guide chute connected in series form a fully enclosed feeding chamber through the combination of the sealing top, sealing box, sealing skirt and discharge baffle.

[0009] The dust removal chamber includes a dust removal feed pipe vertically disposed at the top of the sealed top, a dust removal discharge pipe inclinedly disposed at the top of the sealed top, and an arc-shaped bend disposed between the dust removal feed pipe and the dust removal discharge pipe, wherein the included angle between the dust removal feed pipe and the dust removal discharge pipe is 30-35°; the dust removal chamber is located downstream of the coal drop pipe and communicates with the feed chute, and is used to capture and separate dust in the dust-laden airflow;

[0010] The dust filter chamber includes an inverted V-shaped tube body with both ends connected to the top of the sealed top. The included angle of the inverted V-shaped tube body is 60°. Both the dust removal feed pipe and the inverted V-shaped tube body are provided with connecting holes and filter screens. Both the dust removal chamber and the dust filter chamber are provided with guide plates.

[0011] The dust filter chamber is located downstream of the dust removal chamber and is connected to the material guide trough for further filtering and purifying the dust-laden airflow.

[0012] Preferably, the feed trough is provided with several adjustable damping dust curtains, which can be added to adapt to different material characteristics and dust amounts.

[0013] Preferably, the sealing skirt includes a rectangular sealing plate and a support plate inclinedly disposed on the outside of the sealing plate. The sealing plate and the support plate are combined to form a herringbone structure. The lower inner side of the support plate is provided with an arc-shaped protruding reinforcing rib. The sealing skirt is made of wear-resistant rubber plate.

[0014] Preferably, the clamping device includes a fixed seat on the side wall of the feed chute, an L-shaped pressure rod on the fixed seat, and an angle iron strip on the L-shaped pressure rod. The fixed seat is provided with a T-shaped mounting groove. The L-shaped pressure rod is fixed to the T-shaped mounting groove by bolts. The lower end of the L-shaped pressure rod is provided with a V-shaped limiting groove. The angle iron strip is positioned and pressed by the V-shaped limiting groove. One side of the sealing plate is clamped to the side wall of the feed chute by the angle iron strip.

[0015] Preferably, an inclined guide roller is provided on each side of the support roller, and the two sides of the conveyor belt and the sealing skirt are intermittently pressed upward through the guide roller.

[0016] Preferably, the sides and bottom of the guide trough form an inverted "V" shape, and the sealing cap on the guide trough adopts a circular arc top structure.

[0017] Preferably, the guide plate includes a guide plate fixed at the top inside the dust removal feed pipe and a plurality of guide plates disposed below the guide plate. The lower parts of the guide plates and the guide plate are both arc-shaped structures. The guide plate is in contact with the arc-shaped top of the guide trough through the guide plate, and the guide plate is in contact with the conveying materials in different areas through the guide plates.

[0018] Preferably, the coal drop pipe extends into the guide trough, and a shock-absorbing device is provided at the bottom of the connection between the coal drop pipe and the guide trough. The material falling onto the conveyor belt through the coal drop pipe is buffered by the shock-absorbing device at the bottom.

[0019] Preferably, the shock absorption device includes a plurality of rubber buffer blocks disposed on the frame and a base for fixing the rubber buffer blocks. The rubber buffer blocks are detachably mounted on the base, and the height and tilt angle of the rubber buffer blocks are adjusted by the base.

[0020] Preferably, the coal chute has a curved structure to reduce the impact and dust generation when the material falls.

[0021] Preferably, the outer side of the connecting hole is provided with an openable observation and maintenance window to facilitate observation and maintenance.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] Without requiring an external power supply, it utilizes aerodynamic principles to complete air damping, circulating depressurization, and dust collection within the feed trough. This design not only saves energy and reduces operating costs but also achieves excellent dust removal results.

[0024] This invention improves and optimizes existing traditional dust removal technologies in several aspects. Firstly, the biggest advantage of the non-powered dust collector lies in its energy-saving and environmentally friendly characteristics. It can operate without relying on any external energy input, which contrasts sharply with traditional technologies such as electrostatic precipitators and bag filters that require electricity. This energy-free operation not only reduces energy consumption but also minimizes the environmental impact caused by energy use.

[0025] The non-powered dust collector is designed using aerodynamic principles, utilizing the impact airflow generated when materials fall as its power source. Through airflow channels and internal structures, it effectively separates and removes dust-laden air automatically through inertia, gravity settling, and filtration. This design not only improves dust removal efficiency but also avoids the secondary pollution problems that may occur in traditional dust removal technologies.

[0026] The non-powered dust collector features a simple and efficient structural design, making it easy to install and maintain. Its maintenance costs are low because it does not involve complex mechanical parts or electrical systems, thus reducing failure rates and repair work. This simplicity also makes the installation process faster, helping to shorten project cycles and accelerate project progress.

[0027] The high dust removal efficiency of non-powered dust collectors is another significant advantage. By comprehensively utilizing various dust removal technologies, non-powered dust collectors can achieve a dust removal efficiency of over 99%, significantly reducing dust emissions in industrial production processes, improving the working environment, and helping enterprises meet increasingly stringent environmental regulations.

[0028] In practical applications, improving the sealing of the feed chute effectively controls dust escape and reduces pollution to the surrounding environment. Simultaneously, it reduces the impact of materials on the conveyor belt, extends the conveyor belt's service life, and thus lowers the company's operating costs.

[0029] With dust effectively controlled, air quality in the work area has improved, providing workers with a healthier and safer working environment. This not only helps improve employee job satisfaction but also meets the modern industrial requirements for workplace health and safety. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the combined structure of the clamping device and the sealing skirt in this utility model;

[0032] Figure 3 This is a front view of the combined structure of the frame, conveyor belt, guide trough, clamping device, sealing skirt, guide roller and support roller in this utility model;

[0033] Figure 4 This is a side view of the dust removal chamber and guide plate installation structure in this utility model;

[0034] Figure 5 This is a front view of the dust removal chamber and guide plate installation structure in this utility model;

[0035] Figure 6 This is a side view of the dust filter chamber and guide plate installation structure in this utility model;

[0036] Figure 7 This is a front view of the dust filter chamber and guide plate installation structure in this utility model;

[0037] Figure 8This is a front view of the combined structure of the frame, conveyor belt, coal chute, guide chute, clamping device, sealing skirt and shock absorption device in this utility model;

[0038] In the diagram: 1. Conveyor belt; 2. Frame; 3. Sealing box; 4. Coal drop pipe; 5. Dust removal chamber; 6. Sealed top; 7. Feed chute; 8. Damping dust curtain; 9. Clamping device; 10. Sealing skirt; 11. Dust filter chamber; 12. Discharge curtain; 13. Guide roller; 14. Support roller; 15. Support plate; 16. Reinforcing rib; 17. Sealing plate; 18. Fixed seat; 19. T-shaped mounting groove; 20. L-shaped pressure bar; 21. Angle iron strip; 22. V-shaped limiting groove; 23. Dust removal feed pipe; 24. Connecting hole; 25. Observation and maintenance window; 26. Filter screen; 27. Arc-shaped bend; 28. Dust removal discharge pipe; 29. ​​Inverted V-shaped pipe body; 30. Guide plate; 31. Diversion plate; 32. Guide vane; 33. Shock absorber; 34. Rubber buffer block; 35. Base. Detailed Implementation

[0039] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] like Figure 1 , 4As shown in Figure 7, a conveyor belt dust collector includes a frame 2, a conveyor belt 1 mounted on the frame 2, several guide troughs 7 mounted on the frame 2, a support roller 14 at the bottom of the conveyor belt 1, and a coal drop pipe 4 connected to the starting end of the guide troughs 7. The material on the upper section of the conveyor belt falls to the end of the conveyor belt 1 through the coal drop pipe 4 and is conveyed forward. The conveyed material on both sides of the conveyor belt 1 is limited by the guide troughs 7. The frame 2 is also provided with a dust removal chamber 5, a dust filter chamber 11, a sealing skirt 10, and a clamping device 9.

[0043] The top of the guide trough 7 is provided with a sealing cap 6, and the outer side of the guide trough 7 at the starting end is provided with a sealing box 3. The bottom of the guide trough 7 is set above the conveyor belt 1 to guide the material and control the dust diffusion.

[0044] The sealing skirt 10 is installed on both sides of the guide trough 7 along the conveyor belt 1 via the clamping device 9, and a sealing structure is formed between the conveyor belt 1 and the guide trough 7 through the sealing skirt 10;

[0045] The frontmost section of the guide trough 7 has a discharge baffle 12 at its outlet. Multiple sections of the guide trough 7 connected in series form a fully enclosed feeding cavity through the combination of the sealing top 6, the sealing box 3, the sealing skirt 10, and the discharge baffle 12.

[0046] The dust removal chamber 5 includes a dust removal feed pipe 23 vertically disposed on the top of the sealed top 6, a dust removal discharge pipe 28 inclinedly disposed on the top of the sealed top 6, and an arc-shaped bend 27 disposed between the dust removal feed pipe 23 and the dust removal discharge pipe 28. The included angle between the dust removal feed pipe 23 and the dust removal discharge pipe 28 is 30-35°. The dust removal chamber 5 is located downstream of the coal drop pipe 4 and communicates with the feed chute 7, and is used to capture and separate dust in the dust-laden airflow.

[0047] The dust filter chamber 11 includes an inverted V-shaped tube 29 connected to the top of the sealing cap 6 at both ends. The included angle of the inverted V-shaped tube 29 is 60°. Both the dust removal feed pipe 23 and the inverted V-shaped tube 29 are provided with connecting holes 24 and filter screens 26. Both the dust removal chamber 5 and the dust filter chamber 11 are provided with guide plates 30.

[0048] The dust filter chamber 11 is located downstream of the dust removal chamber 5 and is connected through the feed chute 7, and is used to further filter and purify the dust-laden airflow.

[0049] After falling from the coal chute 4, the material enters the feed chute 7. Since the feeding chamber is a fully sealed structure, it forms a sealed connection with the conveyor belt 1 through a sealing skirt 10, reducing airflow within the sealed space and minimizing dust escape. Downstream of the feed chute 7 are a dust removal chamber 5 and a dust filter chamber 11. These chambers promote dust settling and separation, improving filtration efficiency. The dust-laden airflow generated during material fall diffuses within the feed chute 7 and is guided by the guide plate 30 at the dust removal feed end, entering the dust removal chamber 5 and then flowing through the arc-shaped bend 27 into the dust removal discharge pipe 28 before returning to the conveyor belt 1, further promoting dust settling and separation. The dust removal feed pipe 23 is vertically positioned, and the angle between the dust removal feed pipe 23 and the dust removal discharge pipe 28 is 30–35°. The dust removal chamber 5, through its specific corner structure, better promotes material flow and dust settling. Dust settles in the dust collection chamber 5 due to gravity and is eventually carried away with the material by the conveyor. After being processed in the dust collection chamber 5, the dust-laden airflow continues to move forward and enters the dust filter chamber 11. The dust filter chamber 11 has a specific inverted V-shaped tube structure 29, which, together with the guide plate 30, separates the gas from the remaining dust for a second time to further improve the dust filtration effect. The dust collection feed pipe 23 and the inverted V-shaped tube 29 also have connecting holes 24 with filter screens 26. Through the connecting holes 24, the air pressure in the pipe can be released while preventing dust from being output. The material after dust removal finally falls back onto the conveyor belt and continues to move to the next conveying point.

[0050] Throughout the entire process, the non-powered dust collector utilizes the airflow generated by the falling material as its power source. The entire dust collector requires no external power supply, achieving effective separation and collection of dust using aerodynamic principles, reducing environmental pollution and preventing secondary pollution. This process requires no external energy input, demonstrating the energy-saving and environmentally friendly characteristics of the non-powered dust collector and reducing operating costs. Furthermore, its simple structural design facilitates installation and maintenance, reducing failure rates and repair work, and shortening project cycles.

[0051] This equipment integrates settling dust removal and inertial dust removal. Based on the principles of aerodynamics, it converts the pressure in the airflow into power, guiding the dust-laden gas into the separation equipment. Through inertia and gravity settling, the dust-laden gas is automatically separated and removed. Dust falls onto the conveyor belt and is carried away. After dust removal, it is discharged outside the guide trough 7 through the connecting hole 24, completely solving the problem of internal air pressure in the closed loop. The dust removal efficiency is as high as 99% or more. This process modification breaks through the single design concept of traditional dust removal equipment and is a new type of energy-saving dust removal equipment. Throughout the operation, it effectively controls dust escape, reduces environmental pollution, extends the service life of the conveyor belt, and lowers enterprise operating costs. It improves the sealing performance of the guide trough 7, reduces material impact, promotes the green transformation of industrial production, and achieves sustainable development. With its advantages of energy saving, environmental protection, high efficiency, ease of maintenance, and economic practicality, it provides an effective alternative to traditional dust removal technologies, helping enterprises reduce operating costs and improve production efficiency, and is of great significance to promoting the sustainable development of industrial production.

[0052] A further improvement is that the material guide trough 7 is provided with several adjustable damping dust curtains 8, which can be added to adapt to different material characteristics and dust amounts.

[0053] At least one damping dust curtain 8 must be installed between the sealed box 3 and the coal drop pipe 4 to prevent materials and dust from flowing backward. However, no damping dust curtain 8 is installed between the coal drop pipe 4 and the dust removal chamber 5. This avoids the problem of rapid damage after the damping dust curtain 8 is installed in this area, and allows sufficient airflow to be formed inside the entire feeding cavity, thereby driving the floating dust into the dust removal chamber 5. Multiple damping dust curtains 8 are installed at both the inlet and outlet sections to effectively block dust.

[0054] Further improvements include, for example Figure 2 As shown, the sealing skirt 10 includes a rectangular sealing plate 17 and a support plate 15 inclinedly disposed on the outside of the sealing plate 17. The sealing plate 17 and the support plate 15 are combined to form a herringbone structure. The lower inner side of the support plate 15 is provided with an arc-shaped protruding reinforcing rib 16. The sealing skirt 10 is made of wear-resistant rubber plate.

[0055] The upper edge of the sealing plate 17 is fixed to the side of the guide trough 7 by the clamping device 9, so that the bottom of both the sealing plate 17 and the support plate 15 are connected to the surface of the conveyor belt 1. The sealing plate 17 achieves a sealing effect through contact friction with the conveyor belt 1. The support plate 15, which is inclined and set on the outside of the sealing plate 17, can play a secondary positioning role and support the sealing plate 17. This prevents the material on both sides of the guide trough 7 from flowing out along the gaps on both sides of the conveyor belt 1, and also prevents external air from entering the guide trough 7 through the gaps, thus preventing secondary exhaust gas of dust. The reinforcing rib 16, which has a rounded inner side at the lower end, can improve the support effect of the bottom of the support plate 15, and also increase the sealing and wear resistance, preventing the sealing effect of the sealing skirt 10 from deteriorating due to the rapid wear of the support plate 15.

[0056] A further improvement is made to the clamping device 9, which includes a fixed seat 18 on the side wall of the guide trough 7, an L-shaped pressure rod 20 on the fixed seat 18, and an angle iron strip 21 on the L-shaped pressure rod 20. The fixed seat 18 is provided with a T-shaped mounting groove 19. The L-shaped pressure rod 20 is fixed to the T-shaped mounting groove 19 by bolts. The lower end of the L-shaped pressure rod 20 is provided with a V-shaped limiting groove 22. The angle iron strip 21 is positioned and pressed by the V-shaped limiting groove 22. One side of the sealing plate 17 is clamped to the side wall of the guide trough 7 by the angle iron strip 21.

[0057] When fixing the sealing skirt 10, the clamping device 9 consists of a fixing base 18 with a T-shaped mounting groove 19, an angle iron strip 21, fixing bolts, and an L-shaped pressure rod 20 with a V-shaped limiting groove 22. A clamping device 9 is installed at regular intervals. To fix the sealing skirt 10, the sealing skirt 10 is first placed on the conveyor belt 1. Simultaneously, the L-shaped pressure rod 20 is positioned in the T-shaped mounting groove 19 using bolts. Then, the angle iron strip 21 is placed on the outside of the sealing plate 17, with its outer V-shaped tip embedded in the V-shaped limiting groove 22. Finally, the bolts are tightened to press and fix the sealing skirt 10, thus achieving the installation and positioning of the sealing skirt 10. During installation, the long angle iron strip 21 is effectively limited and fixed by the V-shaped limiting groove 22, avoiding the problem of difficulty in positioning during use and preventing the inability to generate full pressure after tightening. After installation, the sealing skirt 10 can be tightly pressed against the angle iron strip 21 through the lever principle of the L-shaped pressure rod 20, preventing it from falling off due to excessive friction. Furthermore, using the angle iron strip 21 for pressing allows for simultaneous pressing of the entire sealing skirt 10, reducing the number of bolts required. Since the sealing skirt 10 is a consumable, it is prone to wear and tear during long-term use, leading to compromised sealing. Adjusting the height of the sealing skirt 10 using conventional structures is difficult, but with this fixed structure, height adjustment is much easier, simpler, and more efficient. The non-powered dust collector has wear-resistant rubber sealing skirts 10 installed on both sides of the feed chute 7. After the sealing skirts 10 are clamped by the clamping device 9, they can ensure that the sealing skirts 10 are in close contact with the conveyor belt 1 during operation. When the material falls, the impact airflow generated in the feed chute 7 is blocked by the sealing skirts 10 and rebounds, preventing dust from escaping from the gaps. The clamping device 9 can be easily adjusted and replaced, ensuring a long-term sealing effect.

[0058] Further improvements include, for example Figure 3 As shown, each of the two sides of the support roller 14 is provided with an inclined guide roller 13, and the two sides of the conveyor belt 1 and the sealing skirt 10 are intermittently pressed upward through the guide roller 13.

[0059] The frame 2 has a row of inclined guide rollers 13 installed on both sides of the bottom of the conveyor belt 1, so that the edges of the conveyor belt 1 and the sealing skirt 10 are pressed upward through the guide rollers 13, which can ensure that the conveyor belt 1 and the sealing skirt 10 are tightly fitted, preventing air from blowing in from both sides of the conveyor belt 1 and preventing material from flowing out from both sides of the conveyor belt 1.

[0060] A further improvement is that the side and bottom surfaces of the guide trough 7 form an inverted "V" shape, and the sealing cap 6 on the guide trough 7 adopts a circular arc top structure.

[0061] The design of the feed chute 7 in the non-powered dust collector is crucial. The feed chute 7 adopts an inverted trapezoidal cross-section design with a rounded top, ensuring smooth coal flow from the coal drop pipe 4 into the conveyor belt, reducing impact and dust generation. The feed chute 7 uses an inverted "V" shape and a rounded top design to increase internal space and reduce internal pressure, effectively preventing dust overflow. This reduces dust at the source. By improving the sealing of the feed chute 7, increasing its internal volume, and adding structures such as the dust collection chamber 5, filter chamber 11, and sealing skirt 10, it ensures that when the airflow velocity at the feed chute 7 outlet is below 2m / s, very little dust is discharged, achieving both symptomatic and root-cause control. Simultaneously, the fully sealed feed chute 7 reduces material splashing and dispersion during conveying, reducing material loss and improving material utilization. This is of great significance for material cost control and improving enterprise economic benefits.

[0062] Further improvements include, for example Figures 4-7 As shown, the guide plate 30 includes a guide plate 31 with its top fixed inside the dust removal feed pipe 23 and a plurality of guide plates 32 disposed below the guide plate 31. The lower parts of the guide plates 32 and the guide plate 31 are both arc-shaped structures. The guide plate 30 is attached to the arc-shaped top of the guide trough 7 through the guide plate 30, and the guide plate 30 is attached to the conveyed materials in different areas through the guide plates 32.

[0063] When the conveyor belt 1 is conveying materials, the materials on the conveyor belt 1 are basically in the form of an arc-shaped raised mountain skin. When the airflow moves in the guide chute 7, although airflow is generated, the materials are not in complete contact with the guide chute 7. Although the flow of airflow can be slowed down by the damping dust curtain 8, the dust still floats in the cavity and cannot be quickly relieved. As a result, the materials discharged from the outlet still contain a lot of air dust. It can only be relieved by increasing the number of damping dust curtains 8, the length of the guide chute 7, or the number of dust removal chambers 5 and filter chambers 11. However, no matter which one is added, there are problems with installation space and cost. Therefore, in order to achieve better buffering and sedimentation of dust in the airflow with a minimum number of dust removal chambers 5 and filter chambers 11, a special guide plate 30 is fixed on the side near the outlet at the dust removal feed end. For example, its upper end is fixed inside the dust removal feed pipe 23. The guide plate 30 forms a sheet-like guide plate 31 in the upper part of the guide channel where there is basically no material accumulation. The guide plates 32 and the lower part of the guide plates 31 are both arc-shaped structures, which allows the airflow carrying dust to move upward better when it impacts the guide plates 31. Several guide plates 32 are formed below them, which can contact the surface of the material. The bottom of the guide plates 32 tilts backward with the material, so that the entire guide plate 30 can guide the airflow more comprehensively and avoid the problem of a large amount of airflow flowing directly backward, so that the dust removal chamber 5 can play a better dust removal role. The same applies to the filter chamber 11.

[0064] Further improvements include, for example Figure 8 As shown, the coal drop pipe 4 extends into the material guide trough 7. A shock-absorbing device 33 is provided at the bottom of the connection between the coal drop pipe 4 and the material guide trough 7. The material falling onto the conveyor belt 1 through the coal drop pipe 4 is buffered by the shock-absorbing device 33 at the bottom.

[0065] At the junction of the coal drop pipe 4 and the guide chute 7, i.e. the drop point, a shock absorber 33 is added. The shock absorber 33 can automatically unload the impact of the material on the conveyor belt 1 and cut off the airflow caused during the drop process, thereby making the entire equipment run more smoothly and the guide chute 7 has better sealing.

[0066] A further improvement is made to the shock absorption device 33, which includes a plurality of rubber buffer blocks 34 disposed on the frame 2 and a base 35 for fixing the rubber buffer blocks 34. The rubber buffer blocks 34 are detachably mounted on the base 35, and the height and tilt angle of the rubber buffer blocks 34 are adjusted by the base 35.

[0067] The rubber buffer block 34 is installed at the bottom of the conveyor belt 1 via the base 35. When the material falls onto the conveyor belt 1, the rubber buffer block relieves the pressure on the material, preventing the material from directly impacting the conveyor belt 1 and causing gaps on both sides. The rubber buffer block 34 is detachably installed on the base 35, and the height and tilt angle of the rubber buffer block 34 are adjusted via the base 35. When the rubber buffer block 34 is damaged or its height is not suitable, it can be adjusted directly to improve the overall buffering effect and make it more targeted.

[0068] A further improvement is that the coal chute 4 has a curved structure to reduce the impact and dust generation when the material falls.

[0069] The structure of the coal chute 4 was optimized by adopting a C-shaped curved structure. Compared with the traditional straight-fall coal chute 4, the curved coal chute 4 effectively reduces the impact speed of the material on the conveyor belt by changing the material's falling trajectory and influencing the material flow path. It also interferes with the force generated during the free fall of the material, guides the material flow, and reduces the impact on the conveyor belt during the fall. As the material falls through the curved coal chute 4, the reduced speed and guided trajectory reduce dust generated by high-speed impact. The coal chute 4 mitigates the impact of falling material, thus reducing dust generation. To improve the sealing of the guide chute 7, the design of the coal chute 4 ensures efficient collection and transportation, reduces air carryover, and slows the descent rate. The material first falls from the previous stage conveyor to the next stage conveyor through the coal chute 4. This not only slows down the high and low pressure airflow formed by the material velocity, helping to reduce dust generation and improve dust removal efficiency, but also reduces the load on the dust removal system, thereby reducing noise and dust generation. This design helps create a quieter and more comfortable working environment. Because the impact of falling materials is reduced, the wear on the conveyor belt is also reduced accordingly, which helps to extend the service life of the conveyor belt and reduce the frequency of replacement and maintenance costs.

[0070] A further improvement is that an openable observation and maintenance window 25 is provided on the outside of the connecting hole 24 to facilitate observation and maintenance.

[0071] When a problem occurs with the filter screen 26, it can be detected and repaired in a timely manner by observing the inspection window 25.

[0072] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A conveyor belt dust collector, comprising a frame (2), a conveyor belt (1) mounted on the frame (2), a plurality of guide troughs (7) mounted on the frame (2), a support roller (14) mounted at the bottom of the conveyor belt (1), and a coal drop pipe (4) connected to the starting end of the guide troughs (7), wherein material on the upper section of the conveyor belt falls through the coal drop pipe (4) to the end of the conveyor belt (1) and is conveyed forward, and the conveyed material on both sides of the conveyor belt (1) is limited by the guide troughs (7), characterized in that: The frame (2) is also provided with a dust removal chamber (5), a dust filter chamber (11), a sealing skirt (10), and a clamping device (9); the top of the guide trough (7) is provided with a sealing cap (6), and the outer side of the guide trough (7) at the starting end is provided with a sealing box (3); the discharge port end of the foremost section of the guide trough (7) is provided with a discharge baffle (12), and the multiple sections of the guide trough (7) connected in series form a fully enclosed feeding cavity through the combination of the sealing cap (6), the sealing box (3), the sealing skirt (10), and the discharge baffle (12); The dust removal chamber (5) includes a dust removal feed pipe (23) vertically arranged on the top of the sealed top (6), a dust removal discharge pipe (28) inclinedly arranged on the top of the sealed top (6), and an arc-shaped bend pipe (27) arranged between the dust removal feed pipe (23) and the dust removal discharge pipe (28). The dust filter chamber (11) includes an inverted V-shaped tube body (29) with both ends connected to the top of the sealed top (6). The dust removal feed pipe (23) and the inverted V-shaped tube body (29) are provided with a connecting hole (24) and a filter screen plate (26). The dust removal chamber (5) and the dust filter chamber (11) are both provided with a guide plate (30).

2. The conveyor belt non-powered dust collector according to claim 1, characterized in that: The sealing skirt (10) includes a rectangular sealing plate (17) and a support plate (15) inclinedly arranged on the outside of the sealing plate (17). The sealing plate (17) and the support plate (15) are combined to form a herringbone structure. The lower inner side of the support plate (15) is provided with an arc-shaped protruding reinforcing rib (16). The sealing skirt (10) is made of wear-resistant rubber plate.

3. The conveyor belt non-powered dust collector according to claim 2, characterized in that: The clamping device (9) includes a fixed seat (18) on the side wall of the guide trough (7), an L-shaped pressure rod (20) on the fixed seat (18), and an angle iron strip (21) on the L-shaped pressure rod (20). The fixed seat (18) is provided with a T-shaped mounting groove (19). The L-shaped pressure rod (20) is fixed to the T-shaped mounting groove (19) by bolts. The lower end of the L-shaped pressure rod (20) is provided with a V-shaped limiting groove (22). The angle iron strip (21) is positioned and pressed by the V-shaped limiting groove (22). One side of the sealing plate (17) is clamped to the side wall of the guide trough (7) by the angle iron strip (21).

4. The conveyor belt non-powered dust collector according to claim 1, characterized in that: The support roller (14) is provided with an inclined guide roller (13) on each side. The two sides of the conveyor belt (1) and the sealing skirt (10) are intermittently pressed upward through the guide roller (13).

5. A conveyor belt non-powered dust collector according to claim 1, characterized in that: The side and bottom surfaces of the guide trough (7) form an inverted "V" shape, and the sealing cap (6) on the guide trough (7) adopts a circular arc top structure.

6. A conveyor belt non-powered dust collector according to claim 1, characterized in that: The guide plate (30) includes a guide plate (31) fixed at the top inside the dust removal feed pipe (23) and a plurality of guide plates (32) arranged below the guide plate (31). The guide plates (32) and the bottom of the guide plate (31) are both arc-shaped structures. The guide plate (30) is attached to the arc-shaped top of the guide trough (7) through the guide plate (30). The guide plate (30) is attached to the conveying materials in different areas through the guide plates (32).

7. A conveyor belt non-powered dust collector according to claim 1, characterized in that: The coal drop pipe (4) extends into the material guide trough (7). A shock-absorbing device (33) is provided at the bottom of the connection between the coal drop pipe (4) and the material guide trough (7). The material falling from the coal drop pipe (4) onto the conveyor belt (1) is buffered by the shock-absorbing device (33) at the bottom.

8. A conveyor belt non-powered dust collector according to claim 7, characterized in that: The shock absorption device (33) includes a plurality of rubber buffer blocks (34) provided on the frame (2) and a base (35) for fixing the rubber buffer blocks (34). The rubber buffer blocks (34) are detachably installed on the base (35), and the height and tilt angle of the rubber buffer blocks (34) are adjusted by the base (35).

9. A conveyor belt non-powered dust collector according to claim 8, characterized in that: The coal chute (4) has a curved structure.

10. A conveyor belt non-powered dust collector according to claim 1, characterized in that: The outside of the connecting hole (24) is provided with an openable observation and maintenance window (25).

Images