CN109573659B - A dust self-settling ultra-low air volume dust collection system - Google Patents

Abstract

The present invention discloses a dust self-settling ultra-low air volume dust collection system, comprising a conveyor belt (1) and a plurality of fully sealed labyrinth environmentally friendly guide troughs (4), and also comprising a dust escape sealing hood and a cleaning device (2), a damping self-dust reduction assembly device (5), a bin-type discharge port (11), a chute (10) and a dust hood (8) arranged in sequence. The damping self-dust reduction assembly device and the electrostatic dust filter soft curtain can achieve the self-settling of large dust particles, reducing the wear of subsequent dust removal pipelines and dust removal bags. A plurality of guide troughs or chute or bin-type discharge ports form a whole through a fully sealed labyrinth environmentally friendly guide trough, and each whole is only provided with one negative pressure dust removal point, so as to achieve ultra-low air volume dust collection. The system can realize dust pollution control in the bulk material transportation and transfer links, reduce the dust concentration at the job site and meet the environmental protection and occupational health requirements, truly achieving the benefits of environmental protection on the premise of meeting the environmental protection requirements, and saving electric energy and daily maintenance costs as much as possible.

Description

A dust self-settling ultra-low air volume dust collection system

Technical Field

The invention relates to the technical field of bulk material transportation, in particular to a dust self-settling ultra-low air volume dust collecting system.

Background technique

In the fields of steel, coal, cement, mining, glass, etc., a large amount of solid particulate materials need to be transported and transferred by belt conveyors, and a large amount of dust will be generated in this process. The traditional dust removal system used in the existing solid material transfer link is to set a dust hood above the traditional guide trough at each drop point of the belt conveyor and at the head hood position of the previous belt, and then suck the dust into the dust collector for filtration through the dust suction pipe. The existing traditional guide trough is above the belt conveyor, and the guide trough and the belt conveyor are sealed with a long rubber, and the belt conveyor is supported by rollers below. The existing dust hood is adjacent to the drop point of the belt conveyor, and a dust hood is set before and after each drop point.

At present, most of the domestic dust removal systems are set up with large air volume according to the traditional design method. Due to the shortcomings of the system itself, the on-site dust collection effect is poor, there is a lot of smoke and dust, which seriously pollutes the on-site environment, causes serious erosion and wear of the pipeline, and consumes a lot of electricity.

Summary of the invention

In order to solve the dust pollution problem caused by the transportation of solid particulate materials, the present invention provides a dust self-settling ultra-low air volume dust collection system, which overcomes the problems existing in the prior art such as serious dust pollution, excessive dust at the workplace seriously affecting occupational health, large dust removal air volume, high power consumption, and large wear of pipes and bags. It can achieve dust pollution control in the transportation/transfer of solid materials, reduce the dust concentration at the workplace, and meet environmental protection and occupational health requirements. It can truly achieve benefits from environmental protection, and save electricity and daily maintenance costs as much as possible on the premise of achieving environmental protection goals.

The technical invention adopted by the present invention to solve its technical problem is:

A dust self-settling and ultra-low air volume dust collecting system comprises a conveyor belt and a plurality of the above-mentioned fully sealed labyrinth environmentally friendly material guide troughs, wherein the plurality of the said fully sealed labyrinth environmentally friendly material guide troughs are arranged in sequence along the feeding direction of the conveyor belt, and along the feeding direction of the conveyor belt of the fully sealed labyrinth environmentally friendly material guide troughs, the said dust self-settling and ultra-low air volume dust collecting system also comprises a dust-proof sealing head cover and a cleaning device, a damping self-dust reduction combination device, a bin-type discharge port, a chute and a dust hood which are arranged in sequence.

The anti-dust sealing head cover and cleaning device include an arc-shaped head cover, which includes a feed port, a discharge port and an arc-shaped section. An electrostatic dust filter soft curtain is provided at the feed port, a dust hopper is provided below the arc-shaped head cover, and a cleaner is provided above the dust hopper. A chute and a material guide and drainage trough are connected to the outside of the lower end of the discharge port in sequence. The arc-shaped head cover, the chute, the material guide and drainage trough and the fully sealed maze environmentally friendly material guide trough are arranged in sequence from top to bottom.

The lower part of the material guiding and drainage trough is an arc surface structure, the upper end of the material guiding and drainage trough is provided with an inlet, and the lower end of the material guiding and drainage trough is provided with a discharge port. The area of the inlet is smaller than the area of the discharge port. The arc surface structure can make the discharge direction of the material guiding and drainage trough consistent with the feeding direction of the conveyor belt, and the discharge port of the material guiding and drainage trough is connected to the fully sealed maze environmentally friendly material guiding trough.

The fully sealed labyrinth environmentally friendly material guide trough comprises an intermediate frame of the belt conveyor, an inner primary sealed material guide trough, an outer secondary sealed material guide trough and a plurality of roller groups; the inner primary sealed material guide trough can enclose a closed cavity with the upper belt surface of the conveyor belt, the outer secondary sealed material guide trough is located on the left and right sides of the inner primary sealed material guide trough, the plurality of roller groups are fixed on the intermediate frame of the belt conveyor, the roller groups include standard rollers at the bottom and non-standard semi-rollers on both sides, and a deviation correction device is provided at the outlet of the fully sealed labyrinth environmentally friendly material guide trough.

The inner layer primary sealing material guide trough contains a cover plate, an inner plate and a Y-shaped anti-overflow skirt plate which are connected in sequence. The inner plate is located on the left and right sides of the cover plate, the Y-shaped anti-overflow skirt plate is arranged below the inner plate, the Y-shaped anti-overflow skirt plate is provided with an up and down adjustment structure, and the inner plate is connected to the outside with a support leg, which is fixed on the middle frame of the belt machine.

The outer secondary sealed material guide trough contains an inner plate, a sealing door and a bottom support plate which are connected in sequence. The sealing door is arranged outside the inner plate. The sealing door is hinged to the inner plate. The joint between the sealing door and the bottom support plate is a bending structure. A snap structure is provided at the joint between the sealing door and the bottom support plate. A handle and a hook are provided on the sealing door.

A bending section is provided on the lower edge of the bottom support plate, which matches the bending parts of the left and right edges of the conveyor belt. The left and right edges of the conveyor belt can be located between the lower end of the Y-shaped anti-overflow skirt plate and the bending section of the bottom support plate. A polymer maze wear-resistant plate is provided on the bottom support plate. A groove structure is provided in the middle of the polymer maze wear-resistant plate. The polymer maze wear-resistant plate is sealed and connected to the conveyor belt. A maze is formed between the groove structure and the conveyor belt. A rear sealing block is provided at the tail of the fully sealed maze environmentally friendly material guide trough, and a front curtain is provided at the front end of the fully sealed maze environmentally friendly material guide trough.

The damping self-dust reduction combination device includes a pressure reduction box, the bottom of which is an open structure, and a dust reduction wind wall is arranged inside the pressure reduction box; the dust self-settling ultra-low air volume dust collecting system also contains an electrostatic dust filter soft curtain, the electrostatic dust filter soft curtain contains a dust filter box, and the dust filter box is provided with a lifting and adjusting mechanism and a dust filter soft curtain, the dust filter soft curtain contains a plurality of electrostatic wear-resistant rubber rods, the diameter of the electrostatic wear-resistant rubber rods is not more than 6mm, the lifting and adjusting mechanism can realize the lifting and lowering of the dust filter soft curtain, the electrostatic dust filter soft curtain is fixed above the fully sealed maze environmental protection material guide trough, and the electrostatic dust filter soft curtain is also arranged in front and behind the dust hood and at the outlet of the fully sealed maze environmental protection material guide trough.

The material guide trough, chute, bin-type discharge port and fully sealed labyrinth environmentally friendly material guide trough form a whole. The dust self-sedimentation ultra-low air volume dust collection system is only provided with a dust hood, which is located away from the material guide trough, chute and bin-type discharge port. The dust hood is a lower upper circular structure, and a dust collection pipe is connected to the outside of the dust hood.

The arc-shaped head cover is connected with the material guide and drainage trough through the chute, the material guide and drainage trough, the chute and the bin-type discharge port are all connected with the fully-sealed labyrinth environmentally friendly material guide trough, the lower end of the damping self-dust reduction combination device is connected with the fully-sealed labyrinth environmentally friendly material guide trough, the lower end of the dust suction hood is connected with the fully-sealed labyrinth environmentally friendly material guide trough, and the roller group of the fully-sealed labyrinth environmentally friendly material guide trough is densely arranged below the discharge port, chute and bin-type discharge port of the material guide and drainage trough.

The beneficial effects of the present invention are:

1. The arc-shaped head cover is designed in an arc shape, and the feed port is sealed with an electrostatic dust filter soft curtain, which can effectively reduce the external air intake. The material guide and drainage groove controls the speed of the material when it reaches the belt conveyor, reducing the amount of dust generated from the source; the cleaning device and dust hopper of the return belt conveyor effectively solve the secondary environmental pollution caused by the dust scattering of the return belt conveyor.

2. Its material centering and wear-resistant devices can realize the unloading of materials to the center of the belt conveyor, reducing the deviation of the belt conveyor and the spillage of dust; the fully sealed labyrinth environmentally friendly material guide trough device realizes good sealing of the dust-generating position of the belt conveyor through the inner primary sealing material guide trough, the outer secondary sealing material guide trough and the lower labyrinth support sealing device, eliminating the dust spillage of the traditional material guide trough; the outer secondary sealing material guide trough can be opened and closed flexibly and conveniently, which is convenient for the maintenance and repair of the belt conveyor equipment during production; the cleaning door on the top of the fully sealed labyrinth material guide trough can meet the needs of timely cleaning of materials in the event of an accident.

3. Its damping self-dust reduction combined device uses space expansion and the increase of dust running stroke to effectively reduce the pressure and kinetic energy of dust, so that large dust particles can self-settled onto the belt conveyor after the kinetic energy is exhausted. In addition, the electrostatic dust filter soft curtain filters and reduces the large dust particles again, realizing the effect of large particles' unpowered self-dust reduction and reducing the wear on subsequent dust removal pipes and dust removal bags.

4. Its deviation-correcting vertical roller can effectively control the conveyor belt from running off and ensure the sealing effect; the dense rollers under the discharge port of the material guide trough, the chute and the bin-type discharge port can reduce the impact force when the belt conveyor receives the material, reduce the material spillage and improve the sealing effect;

5. Its multiple material guide troughs or chutes or bin-type discharge ports form a whole through a fully sealed maze guide trough with only one dust suction point, which can greatly reduce the number of dust removal points and dust removal air volume in the solid material transfer link, which is more than 50% less than the traditional method, achieving ultra-low air volume to achieve environmental protection effects, reduce investment and save electricity consumption of the dust removal system.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

FIG1 is a schematic structural diagram of the dust self-settling ultra-low air volume dust collecting system of the present invention.

FIG. 2 is a schematic diagram of the structure of the anti-dust sealing hood and the cleaning device.

FIG. 3 is a schematic diagram of the structure of the material guide and drainage trough.

FIG. 4 is a schematic diagram of the three-dimensional structure of a fully sealed maze environmentally friendly material guide trough.

FIG. 5 is a schematic diagram of the working state of a fully sealed maze environmentally friendly material guide chute after the cover plate is removed.

FIG. 6 is a schematic structural diagram of a damping self-dust reduction assembly device.

FIG. 7 is a schematic diagram of the structure of an electrostatic dust filter soft curtain.

1. Conveyor belt;

2. Anti-dust sealing hood and cleaning device; 21. Arc-shaped hood; 22. Cleaner; 23. Dust hopper; 24. Arc-shaped section;

3. Material guide and drainage trough;

4. Fully sealed labyrinth environmental protection guide chute; 41. Cover plate; 42. Support leg; 43. Y-type anti-overflow skirt plate; 44. Sealed door; 45. Inner plate; 46. Bottom support plate; 47. Polymer labyrinth wear-resistant plate; 48. Centering device; 49. Wear-resistant device;

5. Damping self-dust suppression combined device; 51. Pressure reduction box; 52. Dust suppression wind wall;

6. Electrostatic dust filter soft curtain; 61. Dust filter box; 62. Lifting and adjusting mechanism; 63. Dust filter soft curtain;

7. Correction device;

8. Dust hood;

9. Vacuum pipes;

10. Slide pipe;

11. Warehouse type discharge port;

12. Chute;

13. Standard rollers;

14. Non-standard semi-roller.

Detailed ways

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

A dust self-settling ultra-low air volume dust collecting system comprises a conveyor belt 1 and a plurality of the above-mentioned fully sealed labyrinth environmentally friendly material guide troughs 4, wherein the plurality of the fully sealed labyrinth environmentally friendly material guide troughs 4 are arranged in sequence along the feeding direction A of the conveyor belt 1, and along the feeding direction A of the conveyor belt 1 of the fully sealed labyrinth environmentally friendly material guide troughs 4, the dust self-settling ultra-low air volume dust collecting system further comprises a dust escape prevention sealing head cover and cleaning device 2, a damping self-dust reduction combination device 5, a bin-type discharge port 11, a chute 10 and a dust hood 8 which are arranged in sequence, as shown in FIG1 .

In this embodiment, the anti-dust sealing head cover and cleaning device 2 includes an arc-shaped head cover 21, and the arc-shaped head cover 21 includes a feed port, a discharge port and an arc-shaped segment 24. An electrostatic dust filter soft curtain 6 is provided at the feed port, and a dust hopper 23 is provided below the arc-shaped head cover 21, and a sweeper 22 is provided above the dust hopper 23. The lower end of the discharge port is connected to a chute 12 and a material guide and drainage trough 3 in sequence. The arc-shaped head cover 21, the chute 12, the material guide and drainage trough 3 and the fully sealed maze environmentally friendly material guide trough 4 are arranged in sequence from top to bottom, as shown in Figures 2 and 3.

The arc-shaped head cover 21 can guide the thrown material in the running direction tangentially, reduce the direct impact and crushing of the material and reduce the dust generation, control the dust generation source, and thus reduce the dust removal wind required for subsequent dust removal. The arc section 24 of the arc-shaped head cover 21 is provided with a wear-resistant lining to increase the service life. The discharge port of the arc-shaped head cover 21 is connected to the chute 12. The electrostatic dust filter soft curtain 6 can reduce the escape of dust from the head cover while also reducing the induced wind entering the head cover with the material running, further reducing the dust generation in the material transfer link. The sweeper 22 cleans the dust adhering to the return conveyor belt, and the cleaned dust falls into the dust hopper 23. The dust hopper 23 adopts a slope design, and the dust accumulated in the dust hopper 23 can slide directly into the chute 12 under the action of gravity, eliminating the environmental pollution caused by the dust adhering to the return conveyor belt.

In this embodiment, the lower part of the material guiding and drainage trough 3 is an arc surface structure, the upper end of the material guiding and drainage trough 3 is provided with a feed port, and the lower end of the material guiding and drainage trough 3 is provided with a discharge port, the area of the feed port is smaller than the area of the discharge port, and the arc surface structure can make the discharge direction of the material guiding and drainage trough 3 consistent with the feeding direction of the conveyor belt 1, and the discharge port of the material guiding and drainage trough 3 is connected to the fully sealed maze environmentally friendly material guiding trough 4.

The chute 12 is connected to the material guiding and drainage trough 3, which is in the form of a small upper part and a large lower part. The material guiding and drainage trough 3 has the effect of guiding and draining, and can realize that the material running direction is consistent with the feeding direction A of the conveyor belt 1, reduce the direct impact and crushing of the material on the conveyor belt 1, and reduce the generation of dust. At the same time, the small upper and large lower structure can form a self-vortex flow field of dust-containing gas at the drop point, reduce the dust-containing gas entering the fully sealed maze environmental protection material guiding trough 4 from the chute 12, and reduce the air volume required for dust removal, as shown in Figure 1.

In this embodiment, the fully sealed labyrinth environmentally friendly material guide trough 4 includes an intermediate frame of the belt conveyor, an inner primary sealed material guide trough, an outer secondary sealed material guide trough and a plurality of roller groups; the inner primary sealed material guide trough can enclose a cylindrical closed cavity with the upper belt surface of the conveyor belt 1, and the outer secondary sealed material guide trough is located on the left and right sides of the inner primary sealed material guide trough. The plurality of roller groups are fixed on the intermediate frame of the belt conveyor, and the roller groups include standard rollers 13 at the bottom and non-standard semi-rollers 14 on the left and right sides. The outlet of the fully sealed labyrinth environmentally friendly material guide trough 4 is provided with a correction device 7, as shown in Figures 4 and 5.

In this embodiment, the inner layer primary sealing guide trough comprises a cover plate 41, an inner plate 45 and a Y-shaped anti-overflow skirt plate 43 connected in sequence, the inner plate 45 is located on the left and right sides of the cover plate 41, the cover plate 41 is supported by the inner plate 45, the Y-shaped anti-overflow skirt plate 43 is arranged below the inner plate 45, the Y-shaped anti-overflow skirt plate 43 is provided with an up and down adjustment structure, the inner plate 45 is externally connected with a support leg 42, and the support leg 42 is fixed on the middle frame of the tape machine. The Y-shaped anti-overflow skirt plate 43 can be adjusted in height according to the degree of wear and tear during use, thereby providing the service life and sealing effect of the Y-shaped anti-overflow skirt plate 43, as shown in Figures 4 and 5.

In this embodiment, the outer secondary sealing guide trough comprises an inner side plate 45, a sealing door 44 and a bottom support plate 46 connected in sequence, and the inner primary sealing guide trough and the outer secondary sealing guide trough share the inner side plate 45. The sealing door 44 is arranged outside the inner side plate 45, and the sealing door 44 is hinged with the inner side plate 45. The joints of the sealing door 44, the bottom support plate 46 and the inner side plate 45 are all bent structures, and a buckle structure is provided at the joint of the sealing door 44 and the bottom support plate 46, and a handle and a hook are provided on the sealing door 44.

Specifically, the sealing door 44 is fixed on the inner plate 45 in a loose-leaf form, and the bending structure of the sealing door 44 is in full contact with the inner plate 45 to achieve sealing. The bending structure of the sealing door 44 is in full contact with the bottom support plate 46 to achieve sealing, and a buckle structure is provided at the connection between the sealing door 44 and the bottom support plate 46 to seal the sealing door 44 and the bottom support plate 46. The sealing door 44 is provided with a handle to achieve opening and closing, and a hook is provided on the upper part of the sealing door 44. After the sealing door 44 is opened, it is hung on the support leg 42 through the hook. At the same time, the sealing door 44 can be easily loaded and unloaded through the loose-leaf, which is convenient for the maintenance and repair of the centering conveyor belt 1 during the production process.

In this embodiment, a bending section is provided at the lower edge of the bottom support plate 46, and a bending portion that bends upward is provided at the left and right edges of the conveyor belt 1. The bending section matches the bending portions at the left and right edges of the conveyor belt 1, and the bending angle of the bending section is consistent with that of the bending portion, and the bending section fits the bending portion. A polymer labyrinth wear-resistant plate 47 is provided on the bottom support plate 46, and a groove structure is provided in the middle of the polymer labyrinth wear-resistant plate 47. The polymer labyrinth wear-resistant plate 47 is sealed and connected to the conveyor belt 1, and a labyrinth is formed between the groove structure and the conveyor belt 1.

The polymer labyrinth wear-resistant plate 47 is closely fitted with the lower surface of the upper belt surface of the conveyor belt 1 to form a tight seal. The polymer labyrinth wear-resistant plate 47 forms a side support for the conveyor belt 1 while forming a seal with the conveyor belt 1. The bottom support plate 46 is supported on the middle frame of the belt conveyor. The tail of the fully sealed labyrinth environmental protection material guide trough is provided with a rear seal, and the front end of the fully sealed labyrinth environmental protection material guide trough is provided with a front curtain. The left and right edges of the upper belt surface of the conveyor belt 1 are located between the lower end of the Y-shaped anti-overflow skirt plate 43 and the bending section of the bottom support plate 46, and the roller group of the fully sealed labyrinth environmental protection material guide trough 4 is located between the upper belt surface and the lower belt surface of the conveyor belt 1.

In this embodiment, the damping self-dust reduction combination device 5 includes a pressure reducing box 51, the bottom of the pressure reducing box 51 is an open structure, and a dust reduction wind wall 52 is arranged inside the pressure reducing box 51; the dust self-settling ultra-low air volume dust collecting system also contains an electrostatic dust filter soft curtain 6, the electrostatic dust filter soft curtain 6 contains a dust filter box 61, and the dust filter box 61 is provided with a lifting and adjusting mechanism 62 and a dust filter soft curtain 63. The dust filter soft curtain 63 contains a plurality of electrostatic wear-resistant rubber rods, and the diameter of the electrostatic wear-resistant rubber rods is not more than 6 mm. The lifting and adjusting mechanism 62 can realize the lifting and lowering of the dust filter soft curtain 63. The electrostatic dust filter soft curtain 6 is fixed above the fully sealed maze environmental protection material guide trough 4. The electrostatic dust filter soft curtain 6 can also be arranged in front and behind the dust hood 8 and at the outlet of the fully sealed maze environmental protection material guide trough 4, as shown in Figures 6 and 7.

After the dust enters the pressure reducing box 51, the speed and kinetic energy are weakened by the expansion of the space and the dust-reducing wind wall 52. At the same time, the large dust particles settle to the conveyor belt 1 due to gravity, reducing the wear on the subsequent dust collection pipe 9 and dust collection bags. In production, the height of the dust filter soft curtain 63 can be freely adjusted according to the wear and tear and the height of the material pile, which is convenient to use. The dust filter soft curtain 63 is installed below the lifting and adjusting mechanism 62. The dust filter soft curtain 63 is composed of multiple layers, and each filter curtain has an unequal spacing of 0mm-100mm, which can filter the dust and self-dust large particles, reducing the wear on the subsequent dust collection pipe 9 and dust collection bags. The electrostatic dust filter soft curtain 6 is arranged in front and behind the dust hood 8, and the electrostatic dust filter soft curtain 6 is arranged at the outlet and tail of the fully sealed labyrinth environmental protection material guide trough 4.

In this embodiment, the material guide trough 3, the chute 10, the bin-type discharge port 11 and the fully sealed labyrinth environmentally friendly material guide trough 4 form a whole, and the dust self-settling ultra-low air volume dust collection system is only provided with a dust hood 8, and the position of the dust hood 8 is far away from the material guide trough 3, the chute 10 and the bin-type discharge port 11. The dust hood 8 is a lower upper circular structure, and a dust collection pipe 9 is connected to the outside of the dust hood 8.

Multiple dust-generating points (material guide and drainage trough 3, chute 10, bin-type discharge port 11 or similar) are formed into a whole through a fully sealed labyrinth environmentally friendly material guide trough 4 and only one negative pressure dust collection point is set. A dust collection hood 8 in the shape of a round sky and a square earth is set at the dust collection point, which can greatly reduce the dust removal air volume and achieve ultra-low air volume dust collection. The dust collection hood 8 is set in a direction away from the material guide and drainage trough 3 or the chute 10 or the bin-type discharge port 11, and the damping self-dust reduction assembly device is in the material incoming direction of the dust collection hood 8. Each dust-generating point is at a certain distance from the dust collection hood 8, and the dust needs to pass through the damping self-dust reduction assembly device 5 and the electrostatic dust filter soft curtain 6 to achieve self-dust reduction of large particles of dust and reduce wear on the subsequent dust collection pipeline 9 and dust collector bags.

In this embodiment, the arc head cover 21 is connected with the material guide and drainage trough 3 through the chute 12, the material guide and drainage trough 3, the chute 10 and the bin-type discharge port 11 are all connected with the fully sealed labyrinth environmentally friendly material guide trough 4, the lower end of the damping self-dust reduction combination device 5 is connected with the fully sealed labyrinth environmentally friendly material guide trough 4, the lower end of the dust suction hood 8 is connected with the fully sealed labyrinth environmentally friendly material guide trough 4, and the roller group of the fully sealed labyrinth environmentally friendly material guide trough 4 is densely arranged below the discharge port of the material guide and drainage trough 3, the chute 10 and the bin-type discharge port 11, and the spacing of the dense arrangement can be selected to range from 300mm to 1000mm.

The fully sealed labyrinth environmentally friendly material guide trough also includes a centering device 48 and a wear-resistant device 49, which are located below the discharge port of the material guide trough 3 or the chute 10 or the bin-type discharge port 11, so that the material flow is discharged at the center of the conveyor belt 1, eliminating the lateral deviation of the conveyor belt caused by the eccentric discharge of the material flow, and achieving sealing. The wear-resistant device 49 is installed on the centering device 48 to extend the service life of the centering device.

In the present invention, the anti-dust sealing hood and the cleaning device 2 adopt an arc-shaped hood 21, which is set according to the parabolic cutting angle of the falling material, reduces the impact force of the solid material and guides the running direction of the material, reduces the hood space, and thus reduces the gas disturbance caused by the falling material, thereby reducing the generation of dust; the anti-dust sealing hood is connected to the chute 12 below, and the chute 12 is connected to the material guide and drainage trough 3, which guides the material to slide along the running direction of the conveyor belt 1, reduces the direct impact of the material on the conveyor belt 1, and reduces the generation of dust; the material guide and drainage trough 3, the chute 10, and the bin-type discharge port 11 are all connected to the fully sealed labyrinth environmentally friendly material guide trough 4, and the fully sealed labyrinth environmentally friendly material guide trough 4 is provided with an inner layer primary sealing material guide trough and an outer layer secondary sealing material guide trough, which seals the dust generated by the discharge of the material guide and drainage trough 3, the chute 10, and the bin-type discharge port 11, and eliminates dust overflow. The dust removal wind performs negative pressure dust removal on the fully sealed labyrinth environmental protection material guide trough 4 through the dust collection hood 8, and then goes to the dust collector for dust removal through the dust collection pipe 9. Through the sealing of the multi-section fully sealed labyrinth environmental protection material guide trough 4, it is possible to achieve ultra-low air volume dust collection by setting only one dust removal point for multiple dust-generating points (similar to the material guide drainage trough 3, the chute 10, and the bin-type discharge port 11), saving electric energy and achieving the purpose of benefiting from environmental protection. At the same time, the dust from each dust-generating point (similar to the material guide drainage trough 3, the chute 10, and the bin-type discharge port 11) needs to travel a certain distance to reach the position of the dust collection hood 8. Through the attenuation of speed and kinetic energy, large dust particles are self-settled by gravity.

The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the patent of the present invention, should still fall within the scope of this patent. In addition, the technical features of the present invention can be freely combined with each other, with each other and with each other, and with each other.

Claims (7)

1. The dust self-settling ultra-low air quantity dust collection system is characterized by comprising a conveying belt (1) and a plurality of fully-sealed labyrinth environment-friendly guide grooves (4), wherein the fully-sealed labyrinth environment-friendly guide grooves (4) are sequentially arranged along the feeding direction of the conveying belt (1), and the dust self-settling ultra-low air quantity dust collection system further comprises an anti-escape dust sealing hood and cleaning device (2), a damping self-settling dust combination device (5), a bin-type discharge opening (11), a chute (10) and a dust hood (8) which are sequentially arranged along the feeding direction of the conveying belt (1) of the fully-sealed labyrinth environment-friendly guide grooves (4);

The fully-sealed labyrinth environment-friendly guide chute (4) comprises a middle frame of the adhesive tape machine, an inner layer primary sealing guide chute, an outer layer secondary sealing guide chute and a plurality of carrier roller groups; the inner layer primary sealing guide chute can seal a cavity with an upper layer belt surface surrounding city of the conveying belt (1), the outer layer secondary sealing guide chute is positioned at the left side and the right side of the inner layer primary sealing guide chute, a plurality of carrier roller groups are fixed on a middle frame of the adhesive tape machine, each carrier roller group comprises a standard carrier roller (13) at the bottom and nonstandard half-carrier rollers (14) at the two sides, and a deviation correcting device (7) is arranged at an outlet of the totally-sealed labyrinth environment-friendly guide chute (4);

The inner-layer primary sealing guide chute comprises a cover plate (41), an inner side plate (45) and Y-shaped anti-overflow skirtboards (43) which are sequentially connected, wherein the inner side plate (45) is positioned at the left side and the right side of the cover plate (41), the Y-shaped anti-overflow skirtboards (43) are arranged below the inner side plate (45), the Y-shaped anti-overflow skirtboards (43) are provided with an up-down adjusting structure, the inner side plate (45) is externally connected with supporting legs (42), and the supporting legs (42) are fixed on a middle frame of a tape machine;

This outer secondary seal baffle box contains medial plate (45), sealing door (44) and bottom layer board (46) that connect gradually, and this inlayer primary seal baffle box and this outer secondary seal baffle box share medial plate (45), and sealing door (44) set up outside medial plate (45), and sealing door (44) are articulated with medial plate (45), and sealing door (44) are the bending structure with the junction of bottom layer board (46) and medial plate (45), and sealing door (44) are equipped with buckle structure with the junction of bottom layer board (46), are provided with handle and couple on sealing door (44).

2. The dust self-settling ultra-low air quantity dust collection system according to claim 1, wherein the anti-escape dust sealing hood and the cleaning device (2) comprise an arc hood (21), the arc hood (21) comprises a feed inlet, a discharge outlet and an arc section (24), an electrostatic dust filtering soft curtain (6) is arranged at the feed inlet, an ash accumulation hopper (23) is arranged below the arc hood (21), a cleaner (22) is arranged above the ash accumulation hopper (23), a chute (12) and a guide chute (3) are sequentially connected outside the lower end of the discharge outlet, and the arc hood (21), the chute (12), the guide chute (3) and the fully-sealed labyrinth environment-friendly guide chute (4) are sequentially arranged from top to bottom.

3. The dust self-settling ultra-low air quantity dust collection system according to claim 2, wherein the lower part of the guiding chute (3) is of an arc structure, the upper end of the guiding chute (3) is provided with a feeding port, the lower end of the guiding chute (3) is provided with a discharging port, the area of the feeding port is smaller than that of the discharging port, the arc structure can enable the discharging direction of the guiding chute (3) to be consistent with the feeding direction of the conveying belt (1), and the discharging port of the guiding chute (3) is connected with the fully-sealed labyrinth environment-friendly guide chute (4).

4. The dust self-settling ultra-low air quantity dust collection system according to claim 1, wherein the lower edge of the bottom supporting plate (46) is provided with a bending section, the bending section is matched with the bending parts of the left and right side edges of the conveying belt (1), the left and right side edges of the conveying belt (1) can be positioned between the lower end of the Y-shaped anti-overflow apron board (43) and the bending section of the bottom supporting plate (46), the bottom supporting plate (46) is provided with a polymer labyrinth wear-resisting plate (47), the middle of the polymer labyrinth wear-resisting plate (47) is provided with a groove structure, the polymer labyrinth wear-resisting plate (47) is in sealing connection with the conveying belt (1), a labyrinth form is formed between the groove structure and the conveying belt (1), the tail part of the fully-sealed labyrinth environment-friendly guide groove (4) is provided with a rear sealing rail, and the front end of the fully-sealed labyrinth environment-friendly guide groove (4) is provided with a front blocking curtain.

5. The dust self-settling ultra-low air quantity dust collection system according to claim 1, wherein the damping self-settling dust collection device (5) comprises a depressurization box (51), the bottom of the depressurization box (51) is of an open structure, and a dust reduction air wall (52) is arranged in the depressurization box (51); dust is from subsiding ultralow amount of wind dust collecting system still contains static dust filtering soft curtain (6), and static dust filtering soft curtain (6) contain dust filtering box (61), are equipped with lift adjustment mechanism (62) and dust filtering soft curtain (63) in dust filtering box (61), and dust filtering soft curtain (63) contain many static wear-resisting glue sticks, the diameter of static wear-resisting glue stick is not more than 6mm, and lift adjustment mechanism (62) can realize the lift of dust filtering soft curtain (63), and static dust filtering soft curtain (6) are fixed in the top of totally enclosed maze environmental protection baffle box (4), and static dust filtering soft curtain (6) still set up in the export of dust hood (8) front and back and totally enclosed maze environmental protection baffle box (4).

6. The dust self-settling ultra-low air quantity dust collection system according to claim 1, wherein the guiding chute (3), the chute (10), the bin-type discharge opening (11) and the totally-enclosed labyrinth environment-friendly guide chute (4) form a whole, the dust self-settling ultra-low air quantity dust collection system is only provided with one dust hood (8), the dust hood (8) is positioned away from the guiding chute (3), the chute (10) and the bin-type discharge opening (11), the dust hood (8) is of a lower upper round structure, and a dust collection pipeline (9) is connected outside the dust hood (8).

7. The dust self-settling ultra-low air quantity dust collection system according to claim 1, wherein an arc hood (21) is communicated with a guide guiding groove (3) through a chute (12), the guide guiding groove (3), a chute (10) and a bin-type discharge opening (11) are all communicated with a fully-sealed labyrinth environment-friendly guide guiding groove (4), the lower end of a damping self-settling dust combination device (5) is communicated with the fully-sealed labyrinth environment-friendly guide guiding groove (4), the lower end of a dust hood (8) is communicated with the fully-sealed labyrinth environment-friendly guide guiding groove (4), and a carrier roller set of the fully-sealed labyrinth environment-friendly guide guiding groove (4) is arranged below the discharge opening of the guide guiding groove (3), the chute (10) and the bin-type discharge opening (11) in an encrypted mode.