Dust removal system of sealing-tape machine driving room

By installing a dust collection unit consisting of a drive roller and a wrap-around roller in the belt conveyor drive compartment, and using a sealing cover and a dust removal negative pressure system to collect dust, the problems of ineffective water mist spraying dust removal and equipment corrosion are solved, achieving better dust removal effect and equipment protection.

CN224185455UActive Publication Date: 2026-05-01JILIN JUYE CLEANING ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN JUYE CLEANING ENG TECH CO LTD
Filing Date
2025-04-29
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing dust removal method using water mist spraying in the drive room of the conveyor belt machine is not very effective and can easily damage the equipment.

Method used

The dust collection unit uses a drive roller and a corner roller to collect dust through a sealed cover and a dust removal negative pressure system, and performs gas-solid separation.

Benefits of technology

It effectively prevents dust from spreading and overflowing, improves dust removal efficiency, and avoids equipment corrosion.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a dust removal system for a driving room of a sealing-tape machine, relates to the technical field of dust removal equipment, and aims to solve the problems that the driving room of the sealing-tape machine in the prior art is sprayed through water mist, the dust removal effect is not obvious, and the equipment is easy to damage. The dust removal device comprises a driving device, a driving roller, a first turnabout roller and a first sealing cover, the driving roller and the first turnabout roller are both arranged in the first sealing cover, the driving device is arranged on one side of the first sealing cover and connected with the driving roller, and the upper side of the sealing cover is connected with a dust removal negative pressure system through a dust removal pipeline. A first belt inlet and a first belt outlet are formed in the two ends of the first sealing cover respectively, the first turnabout drum is arranged close to the first belt inlet, and the driving drum is arranged close to the first belt outlet. The dust removal system for the sealing-tape machine driving room can effectively prevent dust from diffusing and overflowing, has a better dust removal effect and avoids equipment corrosion.
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Description

A dust removal system for conveyor belt machine drive room Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a dust removal system for a conveyor belt drive room. Background Technology

[0002] Coal plays a vital role in modern industry, encompassing both heavy and light industries; energy, metallurgy, chemicals, machinery, textiles, food processing, and transportation. Various industrial sectors consume a certain amount of coal to varying degrees. Coal is commonly transported using conveyor belts, but this process generates large amounts of coal dust, posing significant threats to the environment and human health. Coal dust not only easily triggers respiratory diseases but also causes severe environmental pollution.

[0003] Existing methods for controlling dust pollution in the drive compartment of conveyor belt machines typically involve water mist spraying, but the results are not very significant. Water mist spraying increases the moisture content of the dust, causing most of the damp dust to adhere to the equipment, leading to corrosion and making the equipment difficult to clean. Summary of the Invention

[0004] The purpose of this invention is to provide a dust removal system for the drive compartment of a conveyor belt machine, which solves the problem that the existing technology of using water mist spraying in the drive compartment of a conveyor belt machine has an insignificant dust removal effect and is prone to damaging the equipment. The dust removal system for the drive compartment of a conveyor belt machine of this invention can effectively prevent dust from spreading and overflowing, has a better dust removal effect, and avoids corrosion of the equipment.

[0005] This utility model provides a dust removal system for a conveyor belt drive room, including a drive roller and a corner roller dust collection unit. The drive roller and corner roller dust collection unit includes a drive device, a drive roller, a first redirecting roller, and a first sealing cover. The drive roller and the first redirecting roller are both disposed in the first sealing cover. The drive device is disposed on one side of the first sealing cover and connected to the drive roller. The upper side of the sealing cover is connected to a dust removal negative pressure system through a dust removal pipe. A first belt inlet and a first belt outlet are respectively provided at both ends of the first sealing cover. The first redirecting roller is disposed near the first belt inlet, and the drive roller is disposed near the first belt outlet. The conveyor belt enters the first sealing cover from the first belt inlet, passes around the first redirecting roller and the drive roller, and exits from the first belt outlet.

[0006] As a preferred embodiment of this utility model, a spiral conveying device is provided inside the first sealing cover. The spiral conveying device is located below the drive drum. The outlet end of the spiral conveying device is connected to the first ash discharge valve, and the first ash discharge valve is connected to the dust removal negative pressure system.

[0007] In a preferred embodiment of this utility model, the height of the first redirecting roller is greater than the height of the driving roller, and the first sealing cover is inclined downward from the first belt inlet to the first belt outlet.

[0008] As a preferred embodiment of the present invention, the first sealing cover includes a first inclined surface and a second inclined surface. The first inclined surface is arranged parallel to the upper part of the second inclined surface. The upper and lower ends of the first and second inclined surfaces are respectively provided with a first connecting plate and a second connecting plate. A first belt inlet with an upward opening is provided between the upper end of the first inclined surface and the first connecting plate. A first belt outlet is provided on the second inclined surface. The orientation of the first belt outlet is on the tangent of the drive roller.

[0009] As a preferred embodiment of this utility model, it also includes a redirecting roller vacuum cleaner unit, which includes a second sealing cover, a second redirecting roller, and a auger assembly. The second redirecting roller is disposed in the second sealing cover, and the auger assembly is disposed in the second sealing cover below the second redirecting roller. The second sealing cover is connected to the dust removal negative pressure system through a negative pressure suction port on one side. A second belt inlet with an opening facing one side is provided on the upper side of the second sealing cover, and a second belt outlet with an opening facing downward is provided on the lower side of the second sealing cover. The opening direction of the second belt inlet is perpendicular to the opening direction of the second belt outlet. The conveyor belt enters the second sealing cover from the second belt inlet, goes around the outside of the second redirecting roller, and then exits from the second belt outlet.

[0010] As a preferred embodiment of this utility model, the outlet end of the auger component is connected to the second ash discharge valve through a four-way pipe, and the other end of the second ash discharge valve is connected to the dust removal negative pressure system through a pipe interface.

[0011] As a preferred embodiment of the present invention, it further includes a tensioning roller dust collection assembly, which includes a tensioning roller and a dust collection hood. The dust collection hood is disposed on one side of the tensioning roller and its open end faces the tensioning roller.

[0012] As a preferred embodiment of the present invention, the side wall of the dust collection hood facing the tensioning roller has an arc-shaped edge that is adapted to the tensioning roller.

[0013] In a preferred embodiment of this utility model, the dust collection hood is connected to the dust removal negative pressure system via a connecting hose.

[0014] As a preferred embodiment of this utility model, the dust removal negative pressure system includes a material conveying fan and a negative pressure air conveying pipeline. The material conveying fan is connected to the negative pressure air conveying pipeline, and the negative pressure air conveying pipeline is connected to the first sealing cover, the second sealing cover, and the dust collection cover.

[0015] Compared with the prior art, the present invention has the following positive effects:

[0016] The dust removal system for the conveyor belt drive section provided by this utility model includes a dust collection unit consisting of a drive roller and a corner roller. The dust collection unit includes a drive device, a drive roller, a first redirecting roller, and a first sealing cover. The drive roller and the first redirecting roller are both disposed in the first sealing cover. The drive device is disposed on one side of the first sealing cover and connected to the drive roller. The upper side of the sealing cover is connected to a dust removal negative pressure system through a dust removal pipe. A first belt inlet and a first belt outlet are respectively provided at both ends of the first sealing cover. The first redirecting roller is disposed near the first belt inlet, and the drive roller is disposed near the first belt outlet. The conveyor belt enters the first sealing cover from the first belt inlet, passes around the first redirecting roller and the drive roller, and exits from the first belt outlet. The dust removal system in this invention collects dust scattered around the drive roller and the first redirecting roller by setting up a dust collection unit with a drive roller and a corner roller. The drive roller and the first redirecting roller are sealed by a first sealing cover to prevent dust from spreading and overflowing. The high negative pressure generated by the dust removal negative pressure system collected by the first sealing cover makes the pressure inside the first sealing cover lower than that of the atmosphere, and air will flow into the inlet and outlet of the conveyor belt. On the one hand, the surface of the conveyor belt can be cleaned by air, and on the other hand, the dust-laden airflow can be prevented from overflowing from the first sealing cover. The dust in the first sealing cover is transported to the dust collection box of the dust collector for gas-solid separation by the dust removal negative pressure system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a schematic diagram of the dust removal system in the drive room of the conveyor belt machine according to this utility model;

[0019] Figure 2 is a cross-sectional view of AA in Figure 1;

[0020] Figure 3 is a cross-sectional view of BB in Figure 1;

[0021] Figure 4 is a front view of the dust collection unit with drive roller and wrapping roller in this utility model;

[0022] Figure 5 is a top view of the dust collection unit with drive roller and wrapping roller in this utility model;

[0023] Figure 6 is a front view of the redirecting drum vacuum cleaner unit of this utility model;

[0024] Figure 7 is a top view of the redirecting drum vacuum cleaner unit in this utility model;

[0025] Figure 8 is a left view of the redirecting drum vacuum cleaner unit in this utility model;

[0026] Figure 9 is a front view of the dust cover in this utility model.

[0027] In the diagram: 1. Drive roller and corner roller dust collector unit; 11. Screw conveyor; 111. Drive unit; 12. Drive roller; 13. First redirecting roller; 14. First sealing cover; 141. First inclined surface; 142. Second inclined surface; 143. First connecting plate; 144. Second connecting plate; 15. Drive frame; 16. First ash discharge valve; 18. First belt inlet; 19. First belt outlet; 2. Redirecting roller dust collector unit; 21. Second sealing cover; 22. Second belt inlet; 2 3. Negative pressure dust collection interface; 24. Four-way pipe; 25. Second ash discharge valve; 26. Screwdriver drive device; 27. Screwdriver assembly; 28. Pipe interface; 29. ​​Base; 210. Second redirecting roller; 211. Second belt outlet; 3. Tensioning roller dust collection assembly; 31. Tensioning roller; 32. Dust collection hood; 321. Arc edge; 4. Material conveying fan; 41. Negative pressure pneumatic conveying pipeline; 42. Dust removal pipeline; 5. Guide fan; 6. Third redirecting roller; 7. Connecting hose; 8. Conveyor belt. Detailed Implementation

[0028] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front end," "rear end," "head," "tail," 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 utility model and for simplification, 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 utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] This embodiment provides a dust removal system for a conveyor belt drive compartment, as shown in Figures 1-9. It includes a dust collection unit 1 consisting of a drive roller and corner rollers. The dust collection unit 1 includes a drive device 111, a drive roller 12, a first redirecting roller 13, and a first sealing cover 14. Both the drive roller 12 and the first redirecting roller 13 are housed within the first sealing cover 14. The first sealing cover 14 collects dust that falls during the conveyor belt's transmission through the drive roller 12 and the first redirecting roller 13. The drive device 111 is located on one side of the first sealing cover 14 and connected to the drive roller 12. The drive device 111 can be a motor to drive the drive roller 12 to rotate.

[0033] The upper side of the sealing cover is connected to the dust removal negative pressure system via a dust removal pipe 42. A guide fan 5 is installed inside the dust removal pipe 42 to transport the collected dust to the dust removal negative pressure system. A first belt inlet 18 and a first belt outlet 19 are respectively provided at both ends of the first sealing cover 14. The first redirecting roller 13 is located near the first belt inlet 18, and the drive roller 12 is located near the first belt outlet 19. The conveyor belt 8 enters the first sealing cover 14 from the first belt inlet 18, passes around the first redirecting roller 13 and the drive roller 12, and exits from the first belt outlet 19. The drive device 111, drive roller 12, first redirecting roller 13, and first sealing cover 14 are all mounted on the drive frame 15 for support and fixation.

[0034] In this embodiment, the dust removal system in the drive compartment collects the scattered dust around the drive roller 12 and the first redirecting roller 13 by setting up a dust collection unit 1 for the drive roller and the corner roller. The drive roller 12 and the first redirecting roller 13 are sealed by the first sealing cover 14 to prevent dust from spreading and overflowing. The high negative pressure generated by the dust removal negative pressure system collected by the first sealing cover 14 makes the pressure inside the first sealing cover 14 lower than the atmosphere, and air will flow into the inlet and outlet of the conveyor belt. On the one hand, the surface of the conveyor belt can be cleaned by wind, and on the other hand, the dust-laden airflow can be suppressed from overflowing from the first sealing cover 14. The dust in the first sealing cover 14 is transported to the dust collection box of the dust collector for gas-solid separation by the dust removal negative pressure system.

[0035] In a preferred embodiment, a screw conveyor 11 is provided inside the first sealing cover 14. The screw conveyor 11 is located below the drive drum 12, and its outlet end is connected to a first ash discharge valve 16, which is connected to a dust removal negative pressure system. The conveying rod of the screw conveyor 11 is horizontally arranged and has helical blades to convey dust particles.

[0036] Dust falling during the conveyor belt's transport via the drive roller 12 and the first redirecting roller 13 is partially transported to the dust removal negative pressure system via the dust removal pipe 42 under negative pressure. The other part of the dust particles fall onto the screw conveyor 11 at the bottom of the first sealing cover 14 and is then transported to the dust removal negative pressure system through the screw conveyor 11 to complete dust recovery.

[0037] In one preferred embodiment, the height of the first redirecting roller 13 is greater than the height of the driving roller 12, and the first sealing cover 14 is inclined downward from the first belt inlet 18 to the first belt outlet 19 so that dust particles can gather at the bottom of the first sealing cover 14 for easy conveying.

[0038] As a preferred embodiment, as shown in FIG4, the first sealing cover 14 includes a first inclined surface 141 and a second inclined surface 142, with the first inclined surface 141 arranged parallel above the second inclined surface 142. A first connecting plate 143 and a second connecting plate 144 are respectively provided at the upper and lower ends of the first inclined surface 141 and the second inclined surface 142. The second connecting plate 144 is arc-shaped to cover the outside of the drive roller 12. A first belt inlet 18 with an upward opening is provided between the upper end of the first inclined surface 141 and the first connecting plate 143. The first belt inlet 18 faces the tangent of the first redirecting roller 13, so that the conveyor belt can directly wrap around the first redirecting roller 13 after entering the first sealing cover 14. A first belt outlet 19 is provided on the second inclined surface 142, with the first belt outlet 19 facing the tangent of the drive roller 12, so that the conveyor belt can directly exit from the first belt outlet 19 after wrapping around the drive roller 12. A dust removal pipe 42 is connected to the first inclined surface 141. Preferably, the bottom side of the first redirecting roller 13 and the top side of the drive roller 12 are on the same plane. As shown in FIG4, the conveyor belt enters the first sealing cover 14 from the first belt inlet 18, wraps around the first redirecting roller 13 for a quarter turn, then wraps around the drive roller 12, and after wrapping around the drive roller 12 for half a turn, it exits the first sealing cover 14 from the first belt outlet 19.

[0039] In a preferred embodiment, the dust removal system in the conveyor belt drive compartment of this embodiment further includes a redirecting roller dust collector unit 2, as shown in Figures 6-8. The redirecting roller dust collector unit 2 includes a second sealing cover 21, a second redirecting roller 210, and a auger assembly 27. The auger assembly 27 is driven by an auger drive device 26. The conveying principle of the auger assembly 27 is the same as that of the screw conveyor device 11 in the drive roller and corner roller dust collector unit 1. The second redirecting roller 210 is disposed in the second sealing cover 21, and the auger assembly 27 is disposed in the second sealing cover 21 below the second redirecting roller 210. A negative pressure dust collection interface 23 is connected to a negative pressure dust collection system on one side of the second sealing cover 21 for dust removal by negative pressure.

[0040] A second belt inlet 22 with an opening facing one side is provided on the upper side of the second sealing cover 21, and a second belt outlet 211 with an opening facing downward is provided on the lower side of the second sealing cover 21. The opening direction of the second belt inlet 22 is perpendicular to the opening direction of the second belt outlet 211. The conveyor belt 8 enters the second sealing cover 21 through the second belt inlet 22, passes around the outside of the second redirecting roller, and exits through the second belt outlet 211. The second sealing cover 21, the second redirecting roller 210, and the auger assembly 27 are all mounted on the base 29 to form an integral structure.

[0041] In this embodiment, the deflecting roller dust collector 2 has its conveyor belt enter the second sealing cover 21 through the second belt inlet 22 on the upper side of the second sealing cover 21, and after turning around the second deflecting roller 210 by a quarter turn, it exits from the second belt outlet 211 on the lower side of the second sealing cover 21, thus achieving vertical deflection of the conveyor belt.

[0042] During the conveyor belt reversal process, the coal dust particles falling into the blades are transported to the pipeline of the dust removal negative pressure system through the auger assembly 27 at the bottom of the second sealing cover 21. The dust removal negative pressure system is also connected to the second sealing cover 21 through the negative pressure dust suction interface 23, so that the second sealing cover 21 is in a negative pressure state to suppress the dust overflow. The coal dust in the second sealing cover 21 is transported to the dust collector dust collection box of the dust collector by the wind-powered dust removal negative pressure system for gas / solid separation.

[0043] In a preferred embodiment, the outlet end of the auger assembly 27 is connected to the second ash discharge valve 25 via a four-way pipe 24, and the other end of the second ash discharge valve 25 is connected to the dust removal negative pressure system via a pipe interface 28. Ash discharge control of the auger assembly 27 can be achieved through the second ash discharge valve 25. The second sealing cover 21 includes a first arc-shaped plate and a second arc-shaped plate, which are arranged opposite to each other. A second belt inlet 22 is formed on the upper side of the first and second arc-shaped plates, and a second belt outlet 211 is formed on the lower side of the first and second arc-shaped plates. The first and second arc-shaped plates together form a second sealing cover 21 adapted to the second redirecting roller 210. Dust particles can easily slide down through the first and second arc-shaped plates to the bottom of the second sealing cover 21.

[0044] In a preferred embodiment, the dust removal system in the conveyor belt drive room of this embodiment further includes a tension roller dust collection assembly 3. The tension roller dust collection assembly 3 includes a tension roller 31 and a dust collection hood 32. The dust collection hood 32 is disposed on one side of the tension roller 31 with its open end facing the tension roller 31. As shown in Figure 1, the conveyor belt returns after winding half a turn around the tension roller 31, and the dust collection hood 32 sucks up the dust that falls off during the process of the conveyor belt winding around the tension roller 31.

[0045] In one preferred embodiment, the sidewall of the dust hood 32 facing the tension roller 31 has an arc-shaped edge 321 adapted to the tension roller 31 to cooperate with the tension roller 31 and reduce dust leakage.

[0046] In one preferred embodiment, the dust hood 32 is connected to the dust removal negative pressure system via a connecting hose 7. The connecting hose 7 has a telescopic function to counteract the telescopic stroke of the tension trolley.

[0047] In this embodiment, the tension roller dust collection assembly 3, due to the non-load-bearing surface of the return conveyor belt, will have fine dust adhering to it during the return process. When it encounters the tension roller 31, it will be squeezed, causing a large amount of dust to be ejected and polluting the environment. To prevent dust diffusion, a dust collection hood of the same length as the roller is installed on the tension roller 31 to perform negative pressure recovery of the dust collected by the tension roller 31. This negative pressure dust collection hood 32 is also the air inlet of the dust removal negative pressure system, with high wind speed and dust collection capacity, which can effectively suppress the overflow and diffusion of dust-laden airflow. The coal dust in the dust collection hood 32 is transported by the dust removal negative pressure system to the dust collection box of the dust collector for gas / solid separation.

[0048] In one preferred embodiment, the dust removal negative pressure system includes a material conveying fan 4 and a negative pressure air conveying pipe 41. The material conveying fan 4 is connected to the negative pressure air conveying pipe 41, and the negative pressure air conveying pipe 41 is connected to a first sealing cover 14, a second sealing cover 21, and a dust collection cover 32.

[0049] Specifically, the dust removal system in the conveyor belt drive compartment of this embodiment includes two sets of drive roller and corner roller dust collector units 1, two sets of redirecting roller dust collector units 2, a tensioning roller dust collector assembly 3, and a third redirecting roller 6. As shown in Figures 1-3, the conveyor belt is sequentially conveyed through the redirecting roller dust collector unit 2, the drive roller and corner roller dust collector unit 1, the drive roller and corner roller dust collector unit 1, the tensioning roller dust collector assembly 3, the third redirecting roller 6, and the redirecting roller dust collector unit 2. The dust removal negative pressure system collects dust uniformly through a negative pressure air conveying pipe 41. The dust removal negative pressure system not only meets the dust removal requirements of dispersed dust-generating equipment, but also provides a negative pressure suction air source for the dust-generating equipment to suck up dust inside the hood and maintain its internal negative pressure state.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A dust removal system for a conveyor belt machine drive room, characterized in that, The vacuum cleaner unit (1) includes a drive roller and a corner roller. The drive roller and corner roller vacuum cleaner unit (1) includes a drive device (111), a drive roller, a first redirecting roller and a first sealing cover (14). The drive roller and the first redirecting roller are both disposed in the first sealing cover (14). The drive device (111) is disposed on one side of the first sealing cover (14) and connected to the drive roller. The upper side of the sealing cover is connected to the dust removal negative pressure system through a dust removal pipe (42). A first belt inlet (18) and a first belt outlet (19) are respectively disposed at both ends of the first sealing cover (14). The first redirecting roller is disposed near the first belt inlet (18), and the drive roller is disposed near the first belt outlet (19). The conveyor belt (8) enters the first sealing cover (14) from the first belt inlet (18), passes around the first redirecting roller and the drive roller, and exits from the first belt outlet (19).

2. A tape drive interbay dust extraction system as claimed in claim 1, wherein, A screw conveyor (11) is provided inside the first sealing cover (14). The screw conveyor (11) is located below the drive drum. The outlet end of the screw conveyor (11) is connected to the first ash discharge valve (16). The first ash discharge valve (16) is connected to the dust removal negative pressure system.

3. A drive bay dust extraction system for a tape machine as claimed in claim 2, wherein, The height of the first redirecting roller is greater than the height of the driving roller, and the first sealing cover (14) is inclined downward from the first belt inlet (18) to the first belt outlet (19).

4. A dust removal system for a conveyor belt drive room according to claim 3, characterized in that, The first sealing cover (14) includes a first inclined surface (141) and a second inclined surface (142). The first inclined surface (141) is arranged parallel above the second inclined surface (142). The upper and lower ends of the first inclined surface (141) and the second inclined surface (142) are respectively provided with a first connecting plate (143) and a second connecting plate (144). A first belt inlet (18) with an upward opening is provided between the upper end of the first inclined surface (141) and the first connecting plate (143). A first belt outlet (19) is provided on the second inclined surface (142). The first belt outlet (19) is oriented along the tangent of the drive roller.

5. The drive-isolated dust extraction system of claim 1, wherein, It also includes a redirecting roller vacuum cleaner unit (2), which includes a second sealing cover, a second redirecting roller (210) and a auger assembly (27). The second redirecting roller (210) is disposed in the second sealing cover (21), and the auger assembly (27) is disposed in the second sealing cover (21) below the second redirecting roller (210). The second sealing cover (21) is connected to the dust removal negative pressure system through a negative pressure suction port (23) on one side. A second belt inlet (22) with an opening facing one side is provided on the upper side of the second sealing cover (21), and a second belt outlet (211) with an opening facing downward is provided on the lower side of the second sealing cover (21). The opening direction of the second belt inlet (22) is perpendicular to the opening direction of the second belt outlet (211). The conveyor belt (8) enters the second sealing cover (21) from the second belt inlet (22), goes around the outside of the second redirecting roller, and then exits from the second belt outlet (211).

6. A dust removal system for a conveyor belt drive room according to claim 5, characterized in that, The outlet end of the auger assembly (27) is connected to the second ash discharge valve (25) through a four-way pipe (24), and the other end of the second ash discharge valve (25) is connected to the dust removal negative pressure system through a pipe interface (28).

7. A dust removal system for a conveyor belt drive room according to claim 1, characterized in that, It also includes a tension roller dust collection assembly (3), which includes a tension roller (31) and a dust collection hood (32). The dust collection hood (32) is disposed on one side of the tension roller (31) and its opening end faces the tension roller (31).

8. A drive bay dust extraction system for a tape machine as claimed in claim 7, wherein, The sidewall of the dust hood (32) facing the tension roller (31) has an arc-shaped edge (321) that is adapted to the tension roller (31).

9. A dust removal system for a conveyor belt drive room according to claim 8, characterized in that, The dust collection hood (32) is connected to the dust removal negative pressure system via a connecting hose (7).

10. The drive-isolated dust extraction system of claim 1, wherein, The dust removal negative pressure system includes a material conveying fan (4) and a negative pressure air conveying pipe (41). The material conveying fan (4) is connected to the negative pressure air conveying pipe (41), and the negative pressure air conveying pipe (41) is connected to the first sealing cover (14), the second sealing cover (21), and the dust collection cover (32).