Dust suppression device

Abstract

The invention provides a dust suppression device which comprises a cover body and a dust suppression device, the cover body is provided with a conveying channel, the cover body is used for covering a conveying belt, the conveying belt is arranged in the conveying channel in a penetrating mode, and the cover body comprises a feeding port, a dust outlet and a discharging port which are sequentially arranged along the conveying channel; the dust removal part is arranged above the cover body, the dust removal part comprises a first fan, and the dust removal part communicates with the conveying channel through the dust outlet; the air curtain generator comprises an air supply pipe, the air supply pipe is provided with an air inlet and an air outlet, the air inlet is communicated with the outside, the air outlet is located in the conveying channel and located on the downstream of the dust outlet in the conveying direction, the air outlet is formed in the top of the conveying channel, and the air outlet direction of the air outlet is obliquely arranged in the direction away from the discharging port. According to the technical scheme provided by the invention, the problems that in the prior art, materials in the guide chute fall onto the belt conveyor, a large amount of flying dust is generated, and the production environment is polluted can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor dust removal, and in particular to a dust suppression device. Background Art

[0002] Belt conveyor is the most important equipment for coal transportation and loading and unloading, and the guide chute is an indispensable part of the conveyor. When a large amount of material falls from the guide chute, the material falls directly onto the belt conveyor, which easily causes a strong impact on the dust-laden airflow, resulting in serious dust pollution. If the dust is directly dispersed in the air, it will pollute the environment and have adverse effects on the health of the workers.

[0003] In the current plan, the method for controlling dust in the material guide chute is to add a dust collector and use the negative pressure principle to suppress the escape of dust. The effect is often more obvious near the dust collection point of the dust collector. At the outlet of the material guide chute, the effect decreases due to the reduction of negative pressure. There is still a lot of dust between the material guide chute and the conveyor belt when unloading materials. Summary of the invention

[0004] The invention provides a dust suppression device to solve the problem in the prior art that materials in a material guide trough fall onto a belt conveyor, which generates a large amount of dust and pollutes the production environment.

[0005] The present invention provides a dust suppression device, which is used for reducing dust diffusion between a material guide trough and a conveyor belt, and the dust suppression device comprises: a cover body, which has a conveyor channel, and the cover body is used for covering the conveyor belt, and the conveyor belt is passed through the conveyor channel, and the cover body comprises a feed port, a dust outlet and a discharge port which are arranged in sequence along the conveyor channel, and the feed port and the dust outlet are both arranged at the top of the cover body and are connected with the conveyor channel, the feed port is connected with the material guide trough, and the discharge port is used for materials on the conveyor belt to pass through; a dust removal part, which is arranged above the cover body, and the dust removal part comprises a first fan, and the dust removal part is connected with the conveyor channel through the dust outlet, and the first fan is used for sucking dust in the conveyor channel into the dust removal part; an air curtain generator, and the air curtain generator comprises an air supply pipe, and the air supply pipe has an air inlet and an air outlet, and the air inlet is connected with the outside, and the air outlet is located in the conveyor channel and is located downstream of the dust outlet along the conveying direction, and the air outlet is arranged at the top of the conveyor channel, and the air outlet direction of the air outlet is inclined toward the direction away from the discharge port.

[0006] Furthermore, the dust suppression device also includes a dust curtain, which is arranged at the discharge port. The dust curtain is detachably connected to the cover body, and a clamping structure is provided between the dust curtain and the cover body.

[0007] Furthermore, the dust suppression device also includes an installation frame, which is arranged on the top of the cover body along the width direction of the cover body, and the installation frame is located above the discharge port. A boss is arranged in an annular shape on the bottom of the installation frame, and the boss is located on the inner side of the installation frame. A slot is formed between the boss and the cover body, and a protrusion is arranged on the top of the dust curtain, and the dust curtain is arranged through the slot. The protrusion is located on the boss, and the protrusion cooperates with the installation frame to form a snap-on structure.

[0008] Furthermore, the cover body also has a sealing structure, which is arranged at the bottom of the cover body and located at both sides of the cover body. The cover body abuts against the conveyor belt through the sealing structure.

[0009] Furthermore, the sealing structure includes: a clamping plate, which is arranged on the side of the side wall away from the transport channel, and the clamping plate is arranged at the bottom of the side wall, and the clamping plate and the side wall form a clamping groove; a buffer pad, the top of the buffer pad is located in the clamping groove, the bottom of the buffer pad abuts against the conveyor belt, the extension direction of the buffer pad is the same as the cover body, and the clamping groove is used to clamp the buffer pad.

[0010] Furthermore, the buffer pad has a connecting section and an abutting section arranged in sequence along the vertical direction, part of the connecting section is located in the clamping groove, the structure of the connecting section is adapted to the structure of the clamping groove, the abutting section abuts against the conveyor belt, and the abutting section is provided with a plurality of grooves at intervals on one side of the conveyor belt, and the extension direction of the grooves is the same as the extension direction of the transport channel.

[0011] Furthermore, a rotating member is provided between the clamping plate and the cover body, and the clamping plate is rotatably connected to the side wall of the cover body through the rotating member to clamp or remove the buffer pad.

[0012] Furthermore, the wind curtain generator also includes a second fan and a ventilation duct. The second fan is arranged on the top of the cover body and outside the transport channel. One end of the ventilation duct is connected to the fan, and the other end of the ventilation duct is connected to the air inlet.

[0013] Furthermore, a panel is provided at the bottom of the installation frame. The panel is provided along the lower edge of the installation frame and extends in a vertical direction. The panel is provided around the outer periphery of the dust curtain.

[0014] Furthermore, a lifting handle is provided on the top of the protrusion.

[0015] According to the technical solution of the present invention, the cover body includes a feed port, a dust outlet and a discharge port sequentially arranged along the transport channel, the feed port is connected with the material guide trough, the dust removal part is connected with the transport channel through the dust outlet, and the first fan can suck the dust in the transport channel into the dust removal part to reduce the dust content in the transport channel. The air outlet of the air supply pipe is located in the transport channel and is located downstream of the dust outlet along the transport direction, and the air outlet direction of the air outlet is inclined in the direction away from the discharge port. In this way, the air outlet of the air outlet can change the direction of the airflow, so that the airflow originally from the dust outlet to the discharge port is changed to the airflow from the air outlet to the dust outlet, which can block the dust airflow from flowing out of the discharge port and further reduce the dust content in the transport channel. Through the above-mentioned arrangement, the arrangement of the cover body avoids the diffusion of the dust-containing airflow generated by the material falling onto the conveyor belt. At the same time, in conjunction with the dust removal part and the wind curtain generator, an airflow from the feed port to the dust outlet and an airflow from the air outlet to the dust outlet can be formed in the transport channel, which not only improves the dust removal efficiency, but also reduces the dust content inside the transport channel, thereby effectively reducing the diffusion of dust, effectively improving the working environment, and reducing the potential harm of dust to the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A side view of a dust suppression device provided according to an embodiment of the present invention is shown;

[0018] Figure 2 A schematic diagram of the internal structure of a dust suppression device provided according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic structural diagram of a dust suppression device provided according to an embodiment of the present invention is shown;

[0020] Figure 4 A front view of a dust suppression device provided according to an embodiment of the present invention is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Cover body;

[0023] 101. Transportation channel;

[0024] 11. Feed inlet;

[0025] 12. Dust outlet;

[0026] 13. Discharge port;

[0027] 14. Sealing structure;

[0028] 141. Clamping plate; 142. Buffer pad;

[0029] 1421, connecting section; 1422, abutting section;

[0030] 1423, groove;

[0031] 15. Side wall;

[0032] 20. Dust removal unit;

[0033] 21. Dust outlet channel;

[0034] 30. Wind curtain generator;

[0035] 31. Air supply duct;

[0036] 32. Second fan; 33. Ventilation duct;

[0037] 40. Dust curtain;

[0038] 41. Pull handle;

[0039] 51. Hoardings;

[0040] 01. Conveyor belt; 02. Feed channel. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] like Figures 1 to 4As shown, an embodiment of the present invention provides a dust suppression device, which is used to reduce the diffusion of dust between the material guide trough and the conveyor belt 01. The dust suppression device includes: a cover body 10, a dust removal unit 20 and an air curtain generator 30. The cover body 10 has a conveyor channel 101. The cover body 10 is used to cover the conveyor belt 01. The conveyor belt 01 is passed through the conveyor channel 101. The cover body 10 includes a feed port 11, a dust outlet 12 and a discharge port 13 arranged in sequence along the conveyor channel 101. The feed port 11 and the dust outlet 12 are both arranged at the top of the cover body 10 and communicated with the conveyor channel 101. The feed port 11 is communicated with the material guide trough, and the discharge port 13 is used for the material on the conveyor belt 01 to pass through. The dust removal unit 20 is arranged above the cover body 10. The dust removal unit 20 includes a first fan. The dust removal unit 20 is communicated with the conveyor channel 101 through the dust outlet 12. The first fan is used to suck the dust in the conveyor channel 101 into the dust removal unit 20. The wind curtain generator 30 includes an air supply duct 31, which has an air inlet and an air outlet. The air inlet is connected to the outside, the air outlet is located in the transport channel 101, and is located downstream of the dust outlet 12 along the transport direction. The air outlet is set at the top of the transport channel 101, and the air outlet direction of the air outlet is inclined toward the direction away from the discharge port 13.

[0043] By applying the technical solution of the present invention, the cover body 10 includes a feed port 11, a dust outlet 12 and a discharge port 13 arranged in sequence along the transport channel 101. The feed port 11 is connected to the guide trough, and the dust removal part 20 is connected to the transport channel 101 through the dust outlet 12. The first fan can suck the dust in the transport channel 101 into the dust removal part 20 to reduce the dust content in the transport channel 101. The air outlet of the air supply pipe 31 is located in the transport channel 101 and is located downstream of the dust outlet 12 along the transport direction. The air outlet direction of the air outlet is inclined in the direction away from the discharge port 13. In this way, the air outlet of the air outlet can change the direction of the airflow, so that the airflow originally from the dust outlet 12 to the discharge port 13 is changed to the air outlet to the dust outlet 12, which can block the dust airflow from the discharge port 13 and further reduce the dust content in the transport channel 101. Through the above-mentioned arrangement, the arrangement of the cover body 10 avoids the diffusion of the dust-containing airflow generated by the material falling onto the conveyor belt. At the same time, in cooperation with the dust removal part 20 and the wind curtain generator, an airflow from the feed port 11 to the dust outlet 12 and an airflow from the air outlet to the dust outlet 12 can be formed in the transport channel 101, which not only improves the dust removal efficiency, but also reduces the dust content inside the transport channel 101, thereby effectively reducing the diffusion of dust, effectively improving the working environment, and reducing the potential harm of dust to the health of workers.

[0044] The dust removal unit 20 also includes a filter plate and a dust collecting box, which facilitates filtering and discharging the sucked airflow and collecting the filtered impurities.

[0045] like Figure 1As shown, the cover body 10 is connected to the material guide trough through the feed channel 02, and is connected to the dust removal part 20 through the dust outlet channel 21.

[0046] like Figures 2 to 4 As shown, the dust suppression device also includes a dust curtain 40, which is arranged at the discharge port 13. The dust curtain 40 is detachably connected to the cover body 10, and a snap-on structure is provided between the dust curtain 40 and the cover body 10. The arrangement of the dust curtain 40 further enhances the dust suppression effect of the dust suppression device at the discharge port 13. The dust curtain 40 can prevent the material from carrying part of the dust outside the cover body 10 when passing through the discharge port 13, and can effectively block most of the dust escaping from the discharge port 13, further reducing the dust diffusion on the conveyor belt 01. In addition, the detachable design facilitates the regular cleaning and replacement of the dust curtain 40, ensuring the long-term and stable dust suppression effect at the discharge port 13 of the dust suppression device.

[0047] At the same time, the setting of the clamping structure makes the disassembly and assembly of the dust curtain 40 more convenient, without the need for tools, and the operation is more convenient.

[0048] The dust curtain 40 is made of flexible material, and the length of the dust curtain 40 is not limited and is selected according to the working conditions. In this embodiment, the length of the dust curtain 40 does not cover the entire discharge port 13, so that most of the dust can be blocked without affecting the transportation of materials.

[0049] Specifically, the dust suppression device also includes a mounting frame, which is arranged at the top of the cover body 10 along the width direction of the cover body 10, and the mounting frame is located above the discharge port 13. A boss is arranged in a ring shape at the bottom of the mounting frame, and the boss is located on the inner side of the mounting frame. A slot is formed between the boss and the cover body 10, and a protrusion is arranged at the top of the dust curtain 40. The dust curtain 40 is arranged through the slot, and the protrusion is located on the boss. The protrusion cooperates with the mounting frame to form a snap-on structure. The above design makes the installation and disassembly of the dust curtain 40 more convenient, and the dust curtain 40 can be replaced and cleaned at any time, and there is no need to adjust the position of the dust curtain 40 after inserting it into the slot, which can effectively improve the convenience of operation. At the same time, dust curtains 40 of different sizes or materials can be replaced according to different dust blocking requirements, which improves the flexibility and practicality of dust suppression of the dust suppression device.

[0050] Furthermore, if Figure 3 and Figure 4 As shown, the cover body 10 also has a sealing structure 14, which is arranged at the bottom of the cover body 10, and the sealing structure 14 is located on both sides of the cover body 10. The cover body 10 abuts against the conveyor belt 01 through the sealing structure 14. The setting of the sealing structure 14 can reduce the amount of dust escaping from both sides of the cover body 10, effectively prevent dust from escaping from both sides of the cover body 10, improve the sealing performance of the cover body 10, and further reduce the diffusion of dust.

[0051] Specifically, the sealing structure 14 includes: a clamping plate 141 and a buffer pad 142. The clamping plate 141 is arranged on the side of the side wall 15 away from the transport channel 101, and the clamping plate 141 is arranged at the bottom of the side wall 15, and the clamping plate 141 and the side wall 15 form a clamping groove. The top of the buffer pad 142 is located in the clamping groove, and the bottom of the buffer pad 142 abuts against the conveyor belt 01. The extension direction of the buffer pad 142 is the same as that of the cover body 10, and the clamping groove is used to clamp the buffer pad 142. The setting of the buffer pad 142 can not only prevent dust from escaping from the gap between the cover body 10 and the conveyor belt 01, but also reduce the friction between the conveyor belt 01 and the cover body 10, thereby extending the service life of the conveyor belt 01.

[0052] In this embodiment, the buffer pad 142 is made of a flexible material, specifically rubber, resin, polyurethane or the like.

[0053] Specifically, Figure 4 As shown, the buffer pad 142 has a connecting section 1421 and an abutting section 1422 arranged in sequence along the vertical direction. Part of the connecting section 1421 is located in the clamping groove, and the structure of the connecting section 1421 is adapted to the structure of the clamping groove, so that the contact area between the buffer pad 142 and the clamping plate 141 can be increased, and the connection strength and stability of the buffer pad 142 and the clamping plate 141 can be increased. The abutting section 1422 abuts against the conveyor belt 01, and a plurality of grooves 1423 are arranged at intervals on the side of the abutting section 1422 facing the conveyor belt 01, and the extending direction of the grooves 1423 is the same as the extending direction of the transport channel 101. Through the above arrangement, the grooves 1423 can block the airflow, thereby consuming the energy of the airflow, further reducing the diffusion of dust, and improving the sealing performance of the sealing structure 14. In addition, the plurality of grooves 1423 can block the airflow multiple times, further improving the sealing effect.

[0054] Furthermore, a rotating member is provided between the clamping plate 141 and the cover body 10, and the clamping plate 141 is rotatably connected to the side wall 15 of the cover body 10 through the rotating member to clamp or remove the buffer pad 142. In this way, the buffer pad 142 can be replaced at any time without disassembling the entire cover body 10, and the design of the rotating member makes it more convenient to replace the buffer pad 142, thereby improving the convenience of operation.

[0055] In this embodiment, the rotating member is arranged in the torsion spring and the hinge. Thus, when the buffer pad 142 needs to be replaced, the clamping plate 141 is directly rotated, and the clamping plate 141 is released after the replacement, and the torsion spring drives the clamping plate 141 to resume clamping the buffer pad 142, which is very convenient to operate.

[0056] Specifically, Figure 4As shown, the wind curtain generator 30 also includes a second fan 32 and a ventilation duct 33. The second fan 32 is arranged on the top of the cover body 10 and is located outside the transport channel 101. One end of the ventilation duct 33 is connected to the fan, and the other end of the ventilation duct 33 is connected to the air inlet. The second fan 32 and the ventilation duct 33 can provide a stable wind source for the air supply pipe 31 to ensure the continuity and stability of the wind curtain at the air outlet.

[0057] Among them, Figure 3 As shown, a panel 51 is further provided at the bottom of the mounting frame, the panel 51 is provided along the lower edge of the mounting frame, the panel 51 extends in the vertical direction, and the panel 51 is provided around the outer periphery of the dust curtain 40. The provision of the panel 51 can further prevent dust from escaping from the edge of the dust curtain 40, thereby improving the overall sealing of the dust suppression device.

[0058] Furthermore, a lifting handle 41 is provided at the top of the protrusion. The provision of the lifting handle 41 makes it more convenient to disassemble and assemble the dust curtain 40 without the need for additional tools.

[0059] Through the technical solution provided by the present application, a dust suppression device is installed under the feed channel 02 to prevent most of the dust originally generated by the impact of falling materials from escaping into the air. At the same time, a sealing structure 14 is set at the edge of the cover body 10 close to the conveyor belt 01 to prevent a small amount of dust from escaping into the air along the gap between the conveyor belt 01 and the cover body 10. A dust curtain 40 is installed at the discharge port 13, which greatly reduces the escape of dust carried by the materials on the conveyor belt 01 when passing through the discharge port 13. And a wind curtain generator 30 is installed at the top of the transport channel 101, and the generated wind curtain is used to block the dust generated along the discharge direction due to the impact of falling materials, and let the dust be concentrated in the middle of the transport channel 101, forming a closed space composed of a wind curtain, a cover body 10 and a sealing structure 14 to prevent dust from escaping. A dust outlet channel 21 is installed above the cover body 10, and an external dust collecting box is connected. The first fan uses suction airflow to suck the dust generated by the falling materials and the dust blocked by the wind curtain airflow into the dust collecting box, which effectively reduces the escape of dust into the working environment.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0062] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0063] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0064] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust suppression device, It is characterized in that The dust suppression device is used to reduce the diffusion of dust between the material guide trough and the conveyor belt (01), and the dust suppression device comprises: A cover body (10) having a transport channel (101), the cover body (10) being used to cover the transport belt (01), the transport belt (01) being arranged in the transport channel (101), the cover body (10) comprising a feed port (11), a dust outlet (12) and a discharge port (13) arranged in sequence along the transport channel (101), the feed port (11) and the dust outlet (12) being arranged at the top of the cover body (10) and being connected to the transport channel (101), the feed port (11) being connected to the material guide trough, and the discharge port (13) being used for the material on the transport belt (01) to pass through; A dust removal section (20) is arranged above the cover body (10), the dust removal section (20) comprises a first fan, the dust removal section (20) is connected to the transport channel (101) through the dust outlet (12), and the first fan is used to suck dust in the transport channel (101) into the dust removal section (20); An air curtain generator (30) comprises an air supply pipe (31), the air supply pipe (31) having an air inlet and an air outlet, the air inlet being connected to the outside, the air outlet being located in the transport channel (101) and being located downstream of the dust outlet (12) along the transport direction, the air outlet being arranged at the top of the transport channel (101), and the air outlet direction of the air outlet being arranged to be inclined in a direction away from the material outlet (13).

2. The dust suppression device according to claim 1, It is characterized in that The dust suppression device further comprises a dust curtain (40), wherein the dust curtain (40) is arranged at the discharge port (13), the dust curtain (40) is detachably connected to the cover body (10), and a snap-fit ​​structure is provided between the dust curtain (40) and the cover body (10).

3. The dust suppression device according to claim 2, It is characterized in that The dust suppression device also includes a mounting frame, which is arranged on the top of the cover body (10) along the width direction of the cover body (10), and the mounting frame is located above the discharge port (13). A boss is arranged in an annular shape at the bottom of the mounting frame, and the boss is located on the inner side of the mounting frame. A slot is formed between the boss and the cover body (10). A protrusion is arranged on the top of the dust curtain (40), and the dust curtain (40) is passed through the slot. The protrusion is located on the boss, and the protrusion cooperates with the mounting frame to form the snap-on structure.

4. The dust suppression device according to claim 1, It is characterized in that The cover body (10) also has a sealing structure (14), which is arranged at the bottom of the cover body (10), and the sealing structure (14) is located on both sides of the cover body (10). The cover body (10) is in contact with the conveyor belt (01) through the sealing structure (14).

5. The dust suppression device according to claim 4, It is characterized in that The sealing structure (14) comprises: A clamping plate (141) is arranged on a side of the side wall (15) of the cover body away from the transport channel (101), the clamping plate (141) is arranged at the bottom of the side wall (15), and the clamping plate (141) and the side wall (15) form a clamping groove; A buffer pad (142), the top of the buffer pad (142) is located in the clamping groove, the bottom of the buffer pad (142) is in contact with the conveyor belt (01), the extension direction of the buffer pad (142) is the same as that of the cover body (10), and the clamping groove is used to clamp the buffer pad (142).

6. The dust suppression device according to claim 5, It is characterized in that The buffer pad (142) has a connecting section (1421) and an abutting section (1422) arranged in sequence along the vertical direction, part of the connecting section (1421) is located in the clamping groove, the structure of the connecting section (1421) is adapted to the structure of the clamping groove, the abutting section (1422) abuts against the conveyor belt (01), and a plurality of grooves (1423) are arranged at intervals on one side of the abutting section (1422) facing the conveyor belt (01), and the extension direction of the grooves (1423) is the same as the extension direction of the transport channel (101).

7. The dust suppression device according to claim 5, It is characterized in that A rotating member is provided between the clamping plate (141) and the cover body (10), and the clamping plate (141) is rotatably connected to the side wall (15) of the cover body (10) via the rotating member to clamp or remove the buffer pad (142).

8. The dust suppression device according to claim 1, It is characterized in that The wind curtain generator (30) further comprises a second fan (32) and a ventilation duct (33); the second fan (32) is arranged on the top of the cover body (10) and outside the transport passage (101); one end of the ventilation duct (33) is connected to the fan, and the other end of the ventilation duct (33) is connected to the air inlet.

9. The dust suppression device according to claim 3, It is characterized in that A panel (51) is also provided at the bottom of the installation frame. The panel (51) is provided along the lower edge of the installation frame. The panel (51) extends along the vertical direction. The panel (51) is provided around the outer periphery of the dust-proof curtain (40).

10. The dust suppression device according to claim 3, It is characterized in that A lifting handle (41) is provided on the top of the protrusion.

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