Streamline coal drop pipe and guide chute integrated dust suppression structure

Abstract

The invention discloses a streamline coal drop pipe and guide chute integrated dust suppression structure which comprises a coal drop pipe body used for collecting coal and a guide chute body correspondingly fixed to a discharge port of the coal drop pipe body, and further comprises a dust suppression device and a dust removal device. Wherein the branching pipeline is correspondingly fixed to the top position of the material transferring table, a discharging port of the material transferring table is correspondingly formed in one side of the transition table, in the scheme, a full-process dust suppression system of source bundling dust control, process buffering dust suppression and tail end sealing dust suppression is adopted, the streamline coal falling pipe is seamlessly connected with the material guiding groove, the connection gap is eliminated, the dust suppression effect is good, and the dust suppression effect is good. The multi-stage buffer assembly effectively reduces the material falling speed and the induced wind strength, and the sealing assembly prevents dust from escaping, so that the on-site dust concentration can be reduced to be below 6mg / m < 3 > which is far below the industrial standard, the working environment is improved, the personnel health is guaranteed, and the potential safety hazard is reduced.

Description

Technical Field

[0001] This invention belongs to the field of dust suppression technology for coal conveying equipment, specifically involving an integrated dust suppression structure of streamlined coal drop pipe and guide chute. Background Technology

[0002] In industrial coal conveying systems, coal chutes and guide chutes are the core equipment for material transfer. The two work together to complete the falling, guiding and conveying of materials. Their structural design and connection status directly affect coal conveying efficiency, on-site environment and equipment service life.

[0003] The streamlined coal chute and feed chute proposed in the prior art often generate a lot of dust at the joint surface during use, which causes great pollution to the construction environment. When used in conjunction with an external dust removal structure, the energy consumption is high and the external equipment occupies a large area, which increases the cost of use and also greatly limits the applicable environment of the device. When using existing streamlined coal chutes and guide chutes, the corners of the curved pipes are frequent impact points, resulting in a much shorter service life than other parts of the pipe. As a result, pads are often welded to the corners of the pipes. However, this method leads to situations where the pads cannot be replaced and need to be stacked, affecting the smoothness of the drop. Therefore, we propose an integrated dust suppression structure for streamlined coal chutes and guide chutes. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated dust suppression structure for streamlined coal chutes and feed troughs, so as to solve the problems of severe dust dispersion and large material impact wear in the streamlined coal chutes and feed troughs mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a streamlined coal chute and a guide trough integrated dust suppression structure, including a coal chute body for collecting coal, and a guide trough body fixed at the outlet of the coal chute body, and also including a dust suppression device and a dust removal device. A branch pipe is fixedly installed on the outlet at the bottom of the coal chute body, wherein the branch pipe is fixed at the top of the transfer platform, and the outlet of the transfer platform is located on one side of the transition platform. The coal falling from the transfer platform is conveyed to the guide trough body through the pressure of the transition platform. The streamlined bend of the coal chute body is fixedly equipped with a dust removal device at the corner. The dust removal device is fitted with an impact pad for wear resistance and impact protection. The dust removal device includes a slot dust removal pipe fixed on the coal chute body at the position corresponding to the impact pad. The top of the slot dust removal pipe is connected to an external discharge pipe. A dust collection fan is fixedly installed at the outlet of the external discharge pipe. A flow guide platform is fixedly installed at the top of the main body of the material guide trough, and a conveyor belt for conveying coal is provided on the flow guide platform. The top of the flow guide platform is symmetrically installed with guide side plates for protection on both sides of the conveyor belt, and a dust suppression device is retractable on the guide side plates.

[0006] Furthermore, the impact pad has multiple sets of buffer protrusions distributed at equal intervals on the side of the impact pad that is away from the main body of the coal drop pipe.

[0007] Furthermore, a pressure support is fixedly installed at the top of the transition platform, wherein a transition conveyor for conveying coal is provided on the transition platform, and two sets of pressure rollers are staggered at the outlet position corresponding to the material transfer platform on the pressure support, wherein dustproof covers are hinged and fixed on both sides of the pressure support.

[0008] Furthermore, the dust suppression device includes a dust suppression air cushion cover corresponding to the filling inside the material guide side plate, wherein the top positions of the dust suppression air cushion covers on both sides are fixed by a zipper structure one, and the front and rear positions of the dust suppression air cushion cover are fixed by a zipper structure two to the arc-shaped baffle.

[0009] Furthermore, each of the material guide side plates is provided with a booster pump for inflating the dust suppression air cushion cover on one side, wherein the dust suppression air cushion cover and the booster pump are connected by an inflation pipe.

[0010] Furthermore, an electromagnetic sealing valve is provided on the inflation port of the booster pump at the connection position with the inflation pipe. The electromagnetic sealing valve is used to control the inflation and deflation of the dust suppression air cushion cover.

[0011] Furthermore, the transfer platform has an inclined structure inside, and a feeding roller is provided on the side closest to the transfer platform.

[0012] Furthermore, a dust collection bag is fitted at the air outlet of the exhaust pipe.

[0013] Furthermore, a limiting groove for inserting an impact pad is provided on the side of the slot dust removal pipe corresponding to the side near the main body of the coal chute, and the impact pad is inserted into the limiting groove and fixed to the outside of the slot dust removal pipe by screws.

[0014] Furthermore, the main body of the coal chute has multiple dust collection ports symmetrically and equidistantly distributed vertically on both sides of the installation position of the impact pad plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This solution employs a comprehensive dust suppression system encompassing "source-level clustering dust control, process-level buffering dust suppression, and end-of-pipe sealing dust suppression." The streamlined coal chute seamlessly connects to the feed chute, eliminating gaps. Multi-stage buffer components effectively reduce material falling speed and induced wind intensity, while sealing components prevent dust escape, reducing the on-site dust concentration to 6 mg / m³. 3 The following standards are far below industry standards, improving the working environment, protecting personnel health, and reducing safety hazards.

[0016] 2. The streamlined design inside the main body of the coal chute has a smooth inner wall without sharp edges. The pull-lock structure I, which is set at the corner of the main body of the coal chute, combined with the arc-shaped pipe wall design, reduces the friction and wear between the material and the main body of the coal chute, extends the service life of the equipment, and the plug-in fixing method makes it easy to replace the pull-lock structure I, reducing maintenance costs.

[0017] 3. In this solution, there is no need to install external dust collectors. High-efficiency dust suppression is achieved through structural optimization, reducing equipment investment and construction costs. At the same time, it reduces equipment wear and maintenance frequency, reduces manual cleaning workload, improves coal conveying efficiency, and reduces overall operating costs, resulting in significant economic and social benefits. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the overall left-side three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall right-side three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the arc-shaped baffle structure of the present invention; Figure 4 This is a schematic diagram of the impact pad structure of the present invention; Figure 5 This is a schematic diagram of the overall process structure of the present invention; In the diagram: 1. Main body of the coal chute; 11. Branch pipe; 2. Transfer platform; 3. Transition platform; 31. Pressing support; 32. Pressing roller; 33. Transition conveyor platform; 34. Dustproof cover; 4. Main body of the guide chute; 41. Guide platform; 42. Guide side plate; 43. Dust suppression air cushion cover; 44. Booster air pump; 45. Cable tie structure one; 46. Arc-shaped baffle; 47. Cable tie structure two; 48. Conveyor belt; 5. Dust removal device; 51. Slot dust removal pipe; 52. External discharge pipe; 53. Dust collection fan; 54. Impact pad; 55. Buffer protrusion structure. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Reference Figures 1-5 The technical solution proposed in this invention is as follows: When this type of streamlined coal drop pipe and guide trough integrated dust suppression structure is in use, the coal is fed from the inlet of the main body 1 of the coal drop pipe through the external conveying structure. After the coal enters the interior of the main body 1 of the coal drop pipe, it will fall directly to the position of the branch pipe 11 along the streamlined design of the main body 1 of the coal drop pipe. Then, through the inclined design of the transfer platform 2, it will be directly moved to the transition platform 3 by the feeding roller. At this time, under the action of the transition platform 3, the coal will be coarsely screened. The two staggered pressure rollers 32 will be used to rectify and compress the pile of coal. Finally, it will be moved to the guide platform 41 and discharged externally by the conveyor belt 48. It should be added that: 1. When the coal moves into the interior of the main body 1 of the coal chutes, it will directly impact the impact pad 54 under the guidance of the arc-shaped streamline of the main body 1. At this time, the impact pad 54 and the buffer protrusion 55 set on it will play the main buffering role. Moreover, its structure is cleverly designed and can be quickly disassembled and fixed by directly removing and installing the fixing screws. At the same time, this part will also generate a lot of dust due to the impact. When the coal falls into the transfer platform 2 from the branch pipe 11, a small amount of dust will also be generated. The coal dust will move into the interior of the external discharge pipe 52 through the dust removal port opened on the slot dust removal pipe 51. The dust will be collected in the dust collection bag at the outlet of the external discharge pipe 52 by the external exhaust fan 53. Second, the dust cover 34 installed on the pressure support 31 is directly in a closed device during operation, which can effectively reduce the leakage of coal dust during closed transportation. The dust cover 34 is directly fixed to the pressure support 31 through the vehicle lock fastener to form a closed structure. 3. When installing the enclosed dust suppression structure on the guide platform 41, the dust suppression air cushion cover 43 is pulled out from the guide side plate 42. This is mainly done by connecting the power supply to the booster air pump 44 and controlling the electromagnetic sealing valve connected to the booster air pump 44 to be in the open or closed state. The dust suppression air cushion cover 43 is then inflated using the inflation pipe. After both sides of the dust suppression air cushion cover 43 are fully inflated, their tops will be joined together. At this point, the tops of the two sides of the dust suppression air cushion cover 43 can be sewn together using the first zipper structure 45 for quick joining. If it is necessary to seal both ends of the dust suppression air cushion cover 43, the arc-shaped baffle 46 needs to be sewn to the bottom of the dust suppression air cushion cover 43 using the second zipper structure 47 to achieve quick installation and replacement of the arc-shaped baffle 46. The arc-shaped baffle 46 used in this part can be made of an inflatable structure or foam plastic pad material.

[0023] In this embodiment, the streamlined coal drop pipe and the integrated dust suppression structure of the guide trough further includes a coal drop pipe body 1 for collecting coal, and a guide trough body 4 fixed at the outlet of the coal drop pipe body 1. It also includes a dust suppression device and a dust removal device 5. A branch pipe 11 is fixedly installed on the outlet at the bottom of the coal drop pipe body 1. The branch pipe 11 is fixed at the top of the transfer platform 2. The outlet of the transfer platform 2 is located on one side of the transition platform 3. The coal falling from the transfer platform 2 is conveyed to the guide trough body 4 by the pressure of the transition platform 3. An inclined structure is provided inside the transfer platform 2, and a feeding roller is provided on the side close to the transition platform 3. A dust removal device 5 is fixedly installed at the corner of the streamlined bend of the coal chute body 1. The dust removal device 5 is equipped with an impact pad 54 for wear resistance and impact protection. The dust removal device 5 includes a slot dust removal pipe 51 fixed on the coal chute body 1 at the position corresponding to the impact pad 54. The top of the slot dust removal pipe 51 is connected to an external discharge pipe 52. A dust collection fan 53 is fixedly installed at the air outlet of the external discharge pipe 52. A dust collection bag is fitted at the air outlet of the external discharge pipe 52. A guide platform 41 is fixedly installed at the top of the main body 4 of the guide chute, and a conveyor belt 48 for conveying coal is installed on the guide platform 41. A guide side plate 42 for protection is symmetrically installed on the top of the guide platform 41 corresponding to the two sides of the conveyor belt 48, and a dust suppression device can be stored on the guide side plate 42.

[0024] Multiple sets of buffer protrusions 55 for buffering coal impact are equidistantly distributed on the side of the impact pad 54 corresponding to the side away from the contact surface of the main body 1 of the coal chute. Multiple dust removal ports are symmetrically and equidistantly distributed on both sides of the installation position of the impact pad 54 inside the main body 1 of the coal chute. A limiting groove for inserting the impact pad 54 is provided on the side of the slot dust removal pipe 51 corresponding to the side close to the main body 1 of the coal chute. The impact pad 54 is inserted into the limiting groove and fixed to the outside of the slot dust removal pipe 51 by screws.

[0025] A pressure support 31 is fixedly installed at the top of the transition platform 3. The transition platform 3 is equipped with a transition conveyor 33 for conveying coal. Two sets of pressure rollers 32 are staggered on the pressure support 31 at the outlet position corresponding to the material transfer platform 2. Dustproof covers 34 are hinged and fixed on both sides of the pressure support 31.

[0026] The dust suppression device includes dust suppression air cushion covers 43 that are filled inside the material guide side plate 42. The top positions of the dust suppression air cushion covers 43 on both sides are fixed by a zipper structure 45. The front and rear positions of the dust suppression air cushion covers 43 are fixed by a zipper structure 47 to an arc-shaped baffle 46. Each side of the material guide side plate 42 is provided with a booster air pump 44 for inflating the dust suppression air cushion cover 43. The dust suppression air cushion cover 43 and the booster air pump 44 are connected by an inflation pipe.

[0027] An electromagnetic sealing valve is installed on the inflation port of the booster air pump 44 at the connection position with the inflation pipe. The electronic sealing valve is used to control the inflation and deflation of the dust suppression air cushion cover 43.

[0028] Based on the above work process, it can be seen that: In this solution, by adopting a full-process dust suppression system of "source clustering dust control - process buffering dust suppression - end sealing dust suppression," the streamlined coal chute and the guide chute are seamlessly connected, eliminating connection gaps. Multi-stage buffer components effectively reduce the material falling speed and induced wind intensity, and sealing components prevent dust from escaping, which can reduce the on-site dust concentration to 6mg / m³. 3 The following standards are far below industry standards, improving the working environment, protecting personnel health, and reducing safety hazards.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A streamlined integrated dust suppression structure of coal chutes and guide troughs, comprising a coal chute body (1) for collecting coal, and a guide trough body (4) fixed at the outlet of the coal chute body (1), characterized in that: It also includes a dust suppression device and a dust removal device (5). A branch pipe (11) is fixedly installed on the bottom outlet of the coal drop pipe body (1). The branch pipe (11) is fixed at the top of the transfer platform (2). The outlet of the transfer platform (2) is placed on one side of the transition platform (3). The coal falling from the transfer platform (2) is conveyed to the guide trough body (4) through the pressure of the transition platform (3). A dust removal device (5) is fixedly installed at the corner of the streamlined bend of the coal chute body (1). An impact pad (54) for wear resistance and impact protection is inserted into the dust removal device (5). The dust removal device (5) includes a slot dust removal pipe (51) fixed at the position corresponding to the impact pad (54) on the coal chute body (1). An external discharge pipe (52) is connected through the top of the slot dust removal pipe (51). A dust collection fan (53) is fixedly installed at the air outlet of the external discharge pipe (52). A guide platform (41) is fixedly installed at the top of the main body (4) of the guide trough, and a conveyor belt (48) for conveying coal is provided on the guide platform (41). A guide side plate (42) for protection is symmetrically installed on the top of the guide platform (41) corresponding to the two sides of the conveyor belt (48), and a dust suppression device can be stored on the guide side plate (42).

2. The integrated dust suppression structure of the streamline coal drop pipe and the material guiding groove according to claim 1, characterized in that: On the impact pad (54), there are multiple sets of buffer protrusions (55) distributed at equal intervals on the side opposite to the contact surface of the main body (1) of the coal drop pipe.

3. The integrated dust suppression structure of the streamline coal drop pipe and the material guiding groove according to claim 1, characterized in that: A pressure support (31) is fixedly installed at the top of the transition platform (3). A transition conveyor (33) for conveying coal is provided on the transition platform (3). Two sets of pressure rollers (32) are staggered on the pressure support (31) at the outlet position corresponding to the material transfer platform (2). Dustproof covers (34) are hinged and fixed on both sides of the pressure support (31).

4. The integrated dust suppression structure of the drop leg and the chuting according to claim 1, characterized in that: The dust suppression device includes a dust suppression air cushion cover (43) corresponding to the material guide side plate (42), wherein the top positions of the dust suppression air cushion covers (43) on both sides are fixed by a zipper structure (45), and the front and rear positions of the dust suppression air cushion cover (43) are fixed by a zipper structure (47) to an arc-shaped baffle (46).

5. The streamlined coal chute and feed chute integrated dust suppression structure according to claim 4, characterized in that: Each of the material guide side plates (42) is provided with a booster pump (44) for inflating the dust suppression air cushion cover (43) on one side, wherein the dust suppression air cushion cover (43) and the booster pump (44) are connected by an inflation pipe.

6. The streamlined coal chute and feed chute integrated dust suppression structure according to claim 5, characterized in that: An electromagnetic sealing valve is provided at the air inlet of the booster air pump (44) corresponding to the connection position with the air inlet pipe. The electronic sealing valve is used to control the inflation and deflation of the dust suppression air cushion cover (43).

7. The dust suppression structure of claim 1, wherein: The transfer platform (2) has an inclined structure inside, and a feeding roller is provided on the side close to the transition platform (3).

8. The dust suppression structure of claim 1, wherein: A dust collection bag is fitted at the air outlet of the external exhaust pipe (52).

9. The dust suppression structure of claim 8, wherein: The slot dust removal pipe (51) has a limiting groove for inserting the impact pad (54) at a position corresponding to the side near the main body (1) of the coal drop pipe. The impact pad (54) is inserted into the limiting groove and fixed to the outside of the slot dust removal pipe (51) by screws.

10. The dust suppression structure of claim 8, wherein: The main body of the coal chute (1) has multiple dust removal ports symmetrically and equidistantly distributed on both sides of the installation position of the impact pad (54).

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