A belt dust collection system

Abstract

The utility model provides a conveying belt powder dust collection system, including dust extraction structure and conveying belt, dust extraction structure all includes cloth tube, dust cover and brush assembly, dust cover cover is connected in the outer circumferential side of cloth tube, and the bottom end all sides of dust cover are connected with brush assembly, and the bottom end of brush assembly is opposite with the surface of conveying belt, and dust extraction space is formed between dust cover and cloth tube, and the outside wall of dust cover is outward convex and forms dust extraction pipe. Such form closed space under the action of dust cover, and the dust of material from cloth tube enters conveying belt and does not expose, to reduce dust diffusion foundation from the source, further still can pass through the dust extraction pipe of negative pressure fan communication to suck away the dust, and brush assembly can clean the conveying belt along with the movement of conveying belt, and can also intercept small particle dust splashing through flexible adhesion to fill the gap, block the dust overflow path, the overall dust collection effect is good, and the dynamic adaptability is strong, and the complex operation condition of adaptation conveying belt.

Description

Technical Field

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

[0002] In industrial production, conveyor belts, as core equipment for material transfer, are widely used in steelmaking systems, mining, building materials processing, and other industries, undertaking the continuous conveying of various powders and granules. However, during the conveyor belt transfer process, especially in the material dropping stage from the distribution cylinder, large amounts of dust are easily generated due to the impact of falling materials and airflow disturbances. This not only seriously pollutes the working environment but also damages the respiratory system of operators. At the same time, dust accumulation may accelerate equipment wear and tear and cause safety hazards, posing multiple risks to the company's production and operation.

[0003] The most common dust removal solution for conveyor belts in the industry is a fixed, parallel-installed dust collection hood. This type of device has several inherent drawbacks: First, it is difficult for the dust collection hood to fit tightly against the conveyor belt, resulting in a large gap that limits the dust collection range. A large amount of dust escapes through the gap, leading to generally low dust removal efficiency and difficulty in achieving comprehensive dust capture. Second, the fixed structure cannot adapt to the dynamic movement of the conveyor belt during operation, such as slight deviations and vibrations, further expanding the dust escape channels and easily causing secondary dust pollution. Third, the existing devices have insufficient sealing performance, requiring a high negative pressure power to achieve basic dust removal effects, resulting in high energy consumption. Moreover, the dust emission concentration after dust removal is difficult to meet the increasingly stringent ultra-low emission environmental standards, putting companies under pressure to comply with environmental regulations.

[0004] Therefore, it is necessary to propose a conveyor belt dust collection system to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this utility model is to provide a conveyor belt powder dust collection system to solve the problem that dust leakage is easy in the existing dust collection schemes, resulting in poor dust collection effect.

[0006] To achieve the above objectives, this utility model provides a conveyor belt powder dust collection system, including a dust collection structure and a conveyor belt; wherein, Each of the dust collection structures includes a cloth cylinder, a dust collection hood, and a brush assembly. The top of the cloth cylinder is used to communicate with a cloth pipe. The dust collection hood is covered and connected to the outer periphery of the cloth cylinder, and the brush assembly is connected to all four sides of the bottom of the dust collection hood. The bottom of the brush assembly abuts against the surface of the conveyor belt. A dust collection space is formed between the dust collection hood and the cloth cylinder. A dust collection pipe is formed by protruding outward from the outer wall of the dust collection hood. One end of the dust collection pipe is connected to the dust collection space, and the other end of the dust collection pipe is used to communicate with a negative pressure pipe.

[0007] Preferably, the dust hood includes a cylindrical part and a square part, the cylindrical part is sleeved and connected to the outside of the fabric tube, the square part is connected to the bottom end of the cylindrical part, and the diameter of the square part is larger than the diameter of the cylindrical part, and the brush assembly is connected to the periphery of the bottom end of the square part.

[0008] Preferably, the conveyor belt is inclined outward on both sides along its width direction, and the bottom of the inclined section is chamfered.

[0009] Preferably, the brush assembly includes an in-groove brush and side brushes. The in-groove brushes are connected to both ends of the square cylindrical portion along the extension direction of the conveyor belt, and the arrangement of the in-groove brushes matches the cross-sectional shape of the conveyor belt. The side brushes are connected to both sides of the square cylindrical portion along the width direction of the conveyor belt, and the bottom ends of the in-groove brushes and the side brushes abut against the inner surface of the conveyor belt.

[0010] Preferably, the dust collection structure further includes a flexible tube, which is sleeved and connected to the bottom end of the fabric tube, and the bottom end of the flexible tube extends downward to contact the conveyor belt.

[0011] Preferably, the cylindrical portion and the fabric tube are arranged along a vertical coaxial line.

[0012] Preferably, a sealing ring is connected between the top end of the cylindrical portion and the fabric tube.

[0013] Preferably, the square tube portion has multiple bolt holes around its perimeter, and the top of the groove brush and the side brush each has multiple elongated holes extending vertically. Each bolt hole is corresponding to one of the elongated holes. The groove brush and the side brush are connected vertically in an adjustable manner by bolts passing through the elongated holes and extending into the bolt holes.

[0014] Preferably, the top end of the fabric tube and the fabric pipe, and the other end of the dust suction pipe and the negative pressure pipe are connected by flanges.

[0015] Preferably, there are multiple dust-collecting structures, which are arranged at intervals along the longitudinal direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a conveyor belt powder dust collection system, including a dust collection structure and a conveyor belt. The dust collection structure includes a cloth cylinder, a dust collection hood, and a brush assembly. The top of the cloth cylinder is used to communicate with a cloth pipe. The dust collection hood is covered and connected to the outer periphery of the cloth cylinder, and the bottom of the dust collection hood is connected to the four sides. The bottom of the brush assembly abuts against the surface of the conveyor belt. The dust collection hood and the cloth cylinder together form a dust collection space. The outer wall of the dust collection hood protrudes outward to form a dust collection pipe. One end of the dust collection pipe is connected to the dust collection space, and the other end of the dust collection pipe is used to communicate with a negative pressure pipe. In this way, a sealed space is formed by the dust collection hood, and the dust will not be exposed after the material enters the conveyor belt from the cloth cylinder, so as to reduce the spread of dust from the source. Furthermore, the dust can be sucked away by connecting the dust collection pipe through the negative pressure fan. The brush assembly can not only clean the conveyor belt as it moves, but also intercept small dust particles by flexibly fitting and filling gaps, blocking the path of dust overflow. The overall dust collection effect is good, the dynamic adaptability is strong, and it is suitable for the complex operating conditions of the conveyor belt. 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present utility model; Figure 2 This is a cross-sectional schematic diagram of the overall structure in one embodiment of the present invention; Figure 3 This is a perspective view of a dust cover in one embodiment of the present invention.

[0019] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0020] Explanation of icon numbers: 10. Dust collection structure; 110. Fabric tube; 120. Dust collection hood; 121. Cylindrical part; 122. Square part; 130. Brush assembly; 131. In-slot brush; 132. Side brush; 140. Dust collection pipe; 150. Soft tube; 160. Long hole; 20. Conveyor belt. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] Please see the appendix Figure 1-3 This utility model provides an embodiment of a powder dust collection system for a conveyor belt 20, comprising a dust collection structure 10 and a conveyor belt 20. First, it should be noted that in this application, "longitudinal" refers to the direction of extension of the conveyor belt 20, and "transverse" refers to the direction of width of the conveyor belt 20. Please refer to the accompanying drawings for details; the specific design is as follows: Each of the vacuuming structures 10 includes a fabric tube 110, a vacuum hood 120, and a brush assembly 130. The top of the fabric tube 110 is used to communicate with a fabric pipe. The vacuum hood 120 covers and is connected to the outer periphery of the fabric tube 110, and the brush assembly 130 is connected to all four sides of the bottom of the vacuum hood 120. The bottom of the brush assembly 130 abuts against the surface of the conveyor belt 20. The vacuum hood 120 and the fabric tube 110 enclose a vacuuming space. A vacuum pipe 140 is formed by protruding outward from the outer wall of the vacuum hood 120. One end of the vacuum pipe 140 is connected to the vacuuming space, and the other end of the vacuum pipe 140 is used to communicate with a negative pressure pipe.

[0026] Specifically, the conveyor belt 20 powder dust collection system in this application includes a dust collection structure 10 and a conveyor belt 20. The conveyor belt 20 is a conveying device for transporting powder. The dust collection structure 10 is used to handle the dust generated after the powder is received on the conveyor belt 20. One or more dust collection structures 10 can be set. In application scenarios where the conveyor belt 20 has a long path, the number of dust collection structures 10 can be multiple. Multiple dust collection structures 10 are arranged longitudinally at intervals. The number and spacing of multiple dust collection structures 10 can be flexibly adjusted according to the length of the conveyor belt 20 and the amount of dust generated by the powder, so as to achieve "segmented dust control" of the entire length of the conveyor belt 20. Each dust collection structure 10 is responsible for capturing dust in a section, ensuring that there is no dust escape from the powder from the drop point to the end point of the entire conveying link, and meeting the ultra-low emission requirements of long-distance conveyor belts 20.

[0027] Each of the aforementioned dust-collecting structures 10 includes a cloth cylinder 110, a dust-collecting hood 120, and a brush assembly 130. The cloth cylinder 110 serves as a "transition channel" for powder from the conveying pipeline to the conveyor belt 20, guiding the powder to fall vertically along a fixed path. Therefore, its top is connected to the cloth pipe. The dust-collecting hood 120 surrounds the cloth cylinder 110 as another dust barrier. In this way, the dust raised by the powder falling through the cloth cylinder 110 is directly covered by the dust-collecting hood 120 and will not leak, remaining within the dust-collecting space. The dust-collecting space is distributed throughout the entire area of ​​the cloth cylinder 110, and the dust-collecting range can completely cover it. The core dust-generating area where powder falls significantly improves dust capture efficiency, while the suction pipe 140 is connected to the negative pressure pipe to connect with the negative pressure system (negative pressure fan) to suck away the internal dust; the brush assembly 130 is arranged around the bottom of the dust collection hood 120 and the bottom end abuts against the surface of the conveyor belt 20, which can accurately seal the gap between the dust collection hood 120 and the conveyor belt 20. The close arrangement of the bristles blocks the splashing of small particles, and can also fit with the conveyor belt 20 in real time, completely eliminating the problem of dust leakage in the gap, forming the "last sealing line" after negative pressure adsorption. At the same time, it can also remove dust from the conveyor belt 20 as the conveyor belt 20 is running.

[0028] It is worth mentioning that multiple sets of feeding ports are arranged on the conveyor belt 20. The material falling from the cloth cylinder 110 is mainly fine material and powder. The brush has appropriate stiffness and fine particles can push the brush fibers to deform. After passing through smoothly, it can automatically return to its original state.

[0029] In a preferred embodiment of the present invention, the dust hood 120 includes a cylindrical portion 121 and a square portion 122. The cylindrical portion 121 is sleeved and connected to the outside of the fabric tube 110, and the square portion 122 is connected to the bottom end of the cylindrical portion 121. The diameter of the square portion 122 is larger than the diameter of the cylindrical portion 121. The brush assembly 130 is connected around the bottom end of the square portion 122.

[0030] It should be noted that the cylindrical part 121 serves as a fitting connection to fix it to the outside of the fabric cylinder 110, while the square part 122 is used to spread downward to cover and match the width of the conveyor belt 20. Therefore, the diameter of the square part 122 is larger than the diameter of the cylindrical part 121, and it also provides a place for the brush assembly 130 to be installed and connected.

[0031] In a preferred embodiment of the present invention, the conveyor belt 20 is inclined outward on both sides along its width direction, and the bottom end of the inclined section is chamfered.

[0032] It is important to note that the conveyor belt 20 is inclined outwards on both sides along its width, forming a "trough-shaped" conveying surface. This adapts to the accumulation characteristics of powder materials, preventing them from slipping off the sides due to vibration or turning of the conveyor belt 20 during transport. The chamfered design at the bottom of the inclined section eliminates the "right-angle dead corners" at the edges of the conveyor belt 20, preventing powder from accumulating at the corners. Long-term accumulation not only hardens and clumps, wears down the conveyor belt 20, but also causes gaps where the brushes cannot adhere to the right-angle areas. After the chamfering, the powder can flow smoothly with the conveyor belt 20 without any dead corners. At the same time, the arrangement of the brushes 131 in the trough can perfectly match the inclination arc and chamfered contour of the cross-section of the conveyor belt 20, ensuring "gap-free contact" between the bottom of the brushes and the inner surface of the conveyor belt 20, further blocking the path of dust escaping from the corners of the conveyor belt 20.

[0033] In a preferred embodiment of the present invention, the brush assembly 130 includes an in-groove brush 131 and a side brush 132. The square cylindrical portion 122 is connected to the in-groove brush 131 at both ends along the extension direction of the conveyor belt 20. The arrangement of the brushes in the in-groove brush 131 matches the cross-sectional shape of the conveyor belt 20. The square cylindrical portion 122 is connected to the side brush 132 on both sides along the width direction of the conveyor belt 20. The bottom ends of the in-groove brush 131 and the side brush 132 abut against the inner surface of the conveyor belt 20.

[0034] It is worth noting that the arrangement of the brushes 131 in the trough matches the cross-sectional shape of the conveyor belt 20 (such as adapting to inclined sections and chamfers), and can closely fit the two end faces of the conveyor belt 20 in the extension direction to intercept the "front and rear dust" generated by the operation of the conveyor belt 20 in that direction; the side brushes 132 correspond to the two inclined surfaces in the width direction of the conveyor belt 20, and after fitting together, they can block the dust from escaping from the side edges in the width direction of the conveyor belt 20. The two form a surrounding interception, which completely covers the dust diffusion direction of the material drop area of ​​the conveyor belt 20.

[0035] In a preferred embodiment of the present invention, the dust collection structure 10 further includes a flexible tube 150, which is sleeved and connected to the bottom end of the fabric tube 110, and the bottom end of the flexible tube 150 extends downward to contact the conveyor belt 20.

[0036] It is worth noting that the flexible cylinder 150 is fitted at the bottom of the cloth cylinder 110 and its bottom end contacts the conveyor belt 20. This forms a "fully enclosed conveying channel" in the path of the powder falling from the cloth cylinder 110 to the conveyor belt 20. The initial dust generated by the impact of the falling powder is completely confined inside the flexible cylinder 150 and cannot directly diffuse into the working environment. It is simply carried away by the conveyor belt 20 along with the powder, significantly reducing the dust control pressure on the subsequent dust collection hood 120 and brush assembly 130 from the source, achieving a highly efficient dust removal logic of "controlling the source first, then supplementing with suction". Preferably, the flexible cylinder 150 can be made of a flexible material (such as wear-resistant material). The fabric can adjust its shape in real time according to the small dynamic changes (such as lateral offset and vertical vibration) of the conveyor belt 20 during operation. Its bottom end is always in close contact with the surface of the conveyor belt 20, and there will be no gaps due to the movement of the conveyor belt 20 as in traditional rigid dustproof cylinders. At the same time, the flexible material can avoid rigid friction with the surface of the conveyor belt 20, which protects the conveyor belt 20 from scratches and damage, and ensures the continuity of the closed state. Fine materials and small piles of powder will gradually spread out under the action of the flexible cylinder and the push of the conveyor belt 20, forming a layer-by-layer effect, and the flexible cylinder 150 will not affect the fabric.

[0037] Furthermore, the cylindrical portion 121 and the fabric tube 110 are arranged along a vertical coaxial line.

[0038] It should be noted that the cylindrical part 121 and the cloth cylinder 110 are coaxial in the vertical direction, which makes the dust collection space between them have a perfect annular symmetrical structure. After the negative pressure is introduced through the dust collection pipe 140, it can be evenly distributed along the annular space. At the same time, the dust generated after the powder falls into the conveyor belt 20 is immediately sucked away by the negative pressure from the coaxially set dust collection hood 120. The dust collection effect is timely and clean, which greatly improves the dust capture rate.

[0039] Furthermore, a sealing ring is connected between the top end of the cylindrical portion 121 and the fabric tube 110.

[0040] It should be understood that the sealing ring can improve the sealing performance at the connection between the cylindrical part 121 and the cloth cylinder 110, so as to make the entire vacuuming space more airtight.

[0041] Furthermore, the square tube portion 122 has multiple bolt holes around its perimeter, and the top of the groove brush 131 and the side brush 132 each has multiple elongated holes 160 extending vertically. Each bolt hole is correspondingly provided with an elongated hole 160. The groove brush 131 and the side brush 132 are respectively connected by bolts passing through the elongated holes 160 and extending into the bolt holes so as to be adjustable in vertical position.

[0042] It should be noted that the brush will wear down due to friction with the conveyor belt 20 during long-term use. If it is a fixed installation structure, a gap will appear between the bottom of the brush and the conveyor belt 20 after wear, requiring immediate replacement. However, the elongated hole 160 (extending vertically) allows the operator to loosen the bolts and adjust the brush downwards so that the bottom end is back against the surface of the conveyor belt 20, achieving "wear compensation". There is no need to replace the entire brush. The sealing effect can be restored simply by adjusting the position, which extends the effective service life of the brush and significantly reduces the material cost of brush replacement and the frequency of maintenance. At the same time, it can also be adapted to conveyor belts 20 of different thicknesses, improving the adaptability of the device to different production conditions.

[0043] Furthermore, the top end of the fabric cylinder 110 and the fabric pipe, and the other end of the dust suction pipe 140 and the negative pressure pipe are both connected by flanges.

[0044] It is important to note that the flange connection enables a high-strength seal between pipes. The flange connection between the material distribution cylinder 110 and the material distribution pipe prevents powder from leaking from the connection point during transportation. The flange connection between the suction pipe 140 and the negative pressure pipe prevents negative pressure from leaking during transmission, ensuring that negative pressure can be efficiently introduced into the suction space. Together, they ensure "no leakage in powder transportation and no loss in negative pressure transmission," providing a foundation for the stable operation of the overall dust removal system.

[0045] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A conveyor belt powder dust collection system, characterized in that, Includes a dust collection structure and a conveyor belt; among which, Each of the dust collection structures includes a cloth cylinder, a dust collection hood, and a brush assembly. The top of the cloth cylinder is used to communicate with a cloth pipe. The dust collection hood is covered and connected to the outer periphery of the cloth cylinder, and the brush assembly is connected to all four sides of the bottom of the dust collection hood. The bottom of the brush assembly abuts against the surface of the conveyor belt. A dust collection space is formed between the dust collection hood and the cloth cylinder. A dust collection pipe is formed by protruding outward from the outer wall of the dust collection hood. One end of the dust collection pipe is connected to the dust collection space, and the other end of the dust collection pipe is used to communicate with a negative pressure pipe.

2. The conveyor belt powder dust collection system according to claim 1, characterized in that, The dust hood includes a cylindrical part and a square part. The cylindrical part is sleeved and connected to the outside of the fabric tube, and the square part is connected to the bottom end of the cylindrical part. The diameter of the square part is larger than the diameter of the cylindrical part, and the brush assembly is connected to the periphery of the bottom end of the square part.

3. The conveyor belt powder dust collection system according to claim 2, characterized in that, The conveyor belt is inclined outward on both sides along its width direction, and the bottom of the inclined section is chamfered.

4. The conveyor belt powder dust collection system according to claim 3, characterized in that, The brush assembly includes an in-groove brush and side brushes. The in-groove brushes are connected to both ends of the square cylindrical portion along the extension direction of the conveyor belt, and the arrangement of the in-groove brushes matches the cross-sectional shape of the conveyor belt. The side brushes are connected to both sides of the square cylindrical portion along the width direction of the conveyor belt, and the bottom ends of both the in-groove brushes and the side brushes abut against the inner surface of the conveyor belt.

5. The conveyor belt powder dust collection system according to claim 1, characterized in that, The dust collection structure also includes a flexible tube, which is sleeved and connected to the bottom end of the fabric tube, and the bottom end of the flexible tube extends downward to contact the conveyor belt.

6. The conveyor belt powder dust collection system according to claim 2, characterized in that, The cylindrical section and the fabric tube are arranged along a vertical coaxial line.

7. The conveyor belt powder dust collection system according to claim 2, characterized in that, A sealing ring is connected between the top of the cylindrical part and the fabric tube.

8. The conveyor belt powder dust collection system according to claim 4, characterized in that, Multiple bolt holes are provided around the square tube section. Multiple elongated holes extending vertically are provided at the top of the groove brush and the side brush. Each bolt hole is corresponding to one of the elongated holes. The groove brush and the side brush are connected vertically adjustable by bolts passing through the elongated holes and extending into the bolt holes.

9. The conveyor belt powder dust collection system according to claim 1, characterized in that, The top of the fabric tube and the fabric pipe, as well as the other end of the suction pipe and the negative pressure pipe, are connected by flanges.

10. The conveyor belt powder dust collection system according to claim 1, characterized in that, The number of the dust-collecting structures is multiple, and the multiple dust-collecting structures are arranged at intervals along the longitudinal direction.

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