Dust removal equipment

Abstract

This invention provides a dust removal device, comprising: a housing assembly, the top of which has a feed inlet and an air outlet, and the bottom of which has a discharge outlet and an air inlet; a first conical structure disposed within the housing assembly and below the feed inlet, such that material entering through the feed inlet slides downward along the first conical surface of the first conical structure; and a second conical structure disposed within the housing assembly and below the first conical structure, such that material sliding down the first conical structure slides along the conical surface of the second conical structure to the discharge outlet; wherein the second conical structure has ventilation holes, the air inlet is located on the housing assembly below the second conical structure, and the air outlet is located on the housing assembly above the first conical structure. This dust removal device solves the problem of poor dust removal efficiency in existing dust removal devices.

Description

Technical Field

[0001] This invention relates to the field of particulate dust removal technology, and more specifically, to a dust removal device. Background Technology

[0002] In the particulate material handling industry, various particulate materials may be subjected to factors such as pressure, friction, high temperature or impact during the conveying process, resulting in material breakage and plasticization, forming contaminants such as broken particles, fine powder or filaments. These contaminants will affect the quality of the product, so screening and dust removal are necessary. Existing dust removal equipment has poor dust removal effect and cannot guarantee the quality of the product. Summary of the Invention

[0003] The main objective of this invention is to provide a dust removal device to solve the problem of poor dust removal effect in existing dust removal devices.

[0004] To achieve the above objectives, according to one aspect of the present invention, a dust removal device is provided, comprising: a housing assembly having a feed inlet and an air outlet at its top and a discharge outlet and an air inlet at its bottom; a first conical structure disposed within the housing assembly and located below the feed inlet, such that material entering through the feed inlet slides downward along the first conical surface of the first conical structure; and a second conical structure disposed within the housing assembly and located below the first conical structure, such that material sliding down the first conical structure slides along the conical surface of the second conical structure to the discharge outlet; wherein the second conical structure has ventilation holes, the air inlet is disposed on the housing assembly below the second conical structure, and the air outlet is disposed on the housing assembly above the first conical structure.

[0005] Furthermore, the apex of the first conical structure is located near the feed inlet and above the first conical structure, while the apex of the second conical structure is located near the discharge outlet and below the second conical structure.

[0006] Furthermore, the first conical structure is spaced apart from the sidewall of the housing assembly.

[0007] Furthermore, the first conical structure also includes a transition section that is connected to the bottom end of the first conical surface and extends downward in the vertical direction, wherein an annular space is formed between the transition section and the sidewall of the housing assembly.

[0008] Furthermore, a plurality of positioning plates are provided between the first conical structure and the side wall of the housing assembly, and the plurality of positioning plates are arranged around the first conical structure to fix the first conical structure to the side wall of the housing assembly.

[0009] Furthermore, the apex of the second conical structure is located below the first conical structure. The first conical structure also includes a second conical surface, the apex of which is located below the first conical structure and symmetrically arranged with respect to the first conical surface. The centerline of the second conical structure coincides with the centerline of the second conical surface.

[0010] Furthermore, both the first and / or second conical surfaces are composed of multiple plates joined together.

[0011] Furthermore, the first conical structure and / or the second conical structure are polygonal structures.

[0012] Furthermore, the first conical structure and / or the second conical structure are porous structures.

[0013] Furthermore, the housing assembly includes a dust hood and a cylinder. The dust hood is fitted over the outer side of the top of the cylinder and communicates with the cylinder. The inlet and / or outlet are provided on the dust hood, and the inlet and / or outlet are provided on the cylinder.

[0014] Furthermore, the dust collector includes a first housing and a second housing, which are connected to form a dust collection space. The air outlet is located at the end of the second housing away from the first housing, and the cross-sectional area of ​​the first housing gradually decreases along the direction away from the air outlet.

[0015] Furthermore, the cylinder has a polygonal structure.

[0016] Furthermore, the dust removal equipment also includes: a feed inlet assembly, which is fixed on the dust removal hood, wherein the bottom end of the feed inlet assembly is located inside the cylinder, and the feed inlet is set on the feed inlet assembly.

[0017] Furthermore, the feed inlet assembly includes: a first tube body fixed to the top of the housing assembly; a second tube body movably sleeved on the first tube body to move along the axial direction of the first tube body; and an adjustment mechanism disposed on the first tube body and drivenly connected to the second tube body to adjust the distance between the second tube body and the first conical structure.

[0018] Furthermore, the adjustment mechanism includes: a screw mounting seat, which is fixed on the second tube body; an adjustment screw, which is mounted on the screw mounting seat and passes through the housing assembly; and an adjustment nut, which is sleeved on the adjustment screw and located on the outside of the housing assembly, so as to drive the adjustment screw to move up and down by rotating the adjustment nut.

[0019] Furthermore, the bottom end of the second conical structure is connected to the side wall of the housing assembly, the top of the second conical structure is located below the bottom end and a material leakage port is provided on the top of the conical structure, wherein the dust removal equipment also includes: a material discharge port assembly, the material discharge port assembly is disposed on the second conical structure and communicates with the material leakage port, and the material discharge port is disposed on the material discharge port assembly.

[0020] Furthermore, the dust removal equipment also includes a baffle assembly, which is disposed below the second conical structure to guide the air blown in by the air inlet to the second conical structure.

[0021] Furthermore, the deflector assembly includes: a deflector obliquely disposed within the housing assembly, wherein one end of the deflector is disposed below the air inlet, and the distance between the end of the deflector near the air inlet and the second conical structure is greater than the distance between the end of the deflector away from the air inlet and the second conical structure.

[0022] Furthermore, the housing assembly is provided with multiple observation holes, and the first conical structure is provided with ventilation openings.

[0023] The dust removal equipment using the technical solution of this invention is mainly applied to the screening or impurity removal of particulate materials. The equipment has an air inlet at the bottom and an outlet at the top, creating a negative pressure space in the middle of the shell assembly. By adjusting the air speed, normal material particles fall into the outlet under gravity, while broken particles, fine powder, dust, or other impurities are sucked away from the outlet under negative pressure. This significantly reduces the impurity content of the particulate material exiting the outlet, improving the quality of the material particles. Specifically, to improve quality, this invention designs a dust removal device comprising: a shell assembly, a first conical structure, and a second conical structure. The shell assembly is vertically arranged, and the first and second conical structures are spaced apart vertically within the shell assembly. During dust removal, the material is drawn from the shell... The material enters the housing assembly through the inlet at the top of the component, first falling onto the first conical structure and spreading out on its conical surface. It then rolls downwards along the conical surface. Impurities mixed in the material, due to their small mass, are directly sucked out from the air outlet under negative pressure. Impurities and materials that are not sucked out continue to fall. Because the first and second conical structures are spaced apart, the impurities and materials have a free fall distance. At this point, the air blows upwards, also blowing some impurities to the air outlet for discharge. The materials that are not blown away fall onto the second conical structure and roll along its conical surface. Since the air inlet is closer to the lower end, the air force is stronger. The air blows the impurities through the ventilation holes on the second conical structure. Therefore, the material of this invention undergoes three filtration and cleaning processes, resulting in a better cleaning effect. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 An assembly schematic diagram of an embodiment of the dust removal device according to the present invention is shown;

[0026] Figure 2 A cross-sectional view of an embodiment of the dust removal device of the present invention is shown;

[0027] Figure 3 An exploded schematic diagram of an embodiment of the dust removal device of the present invention is shown.

[0028] The above figures include the following reference numerals:

[0029] 10. Shell assembly; 11. Feed inlet; 12. Discharge outlet; 13. Air inlet; 14. Air outlet; 15. Dust collector hood; 151. First shell; 152. Second shell; 16. Cylinder; 17. Observation hole; 21. First conical structure; 211. First conical surface; 212. Transition section; 213. Second conical surface; 214. Ventilation port; 22. Second conical structure; 23. Positioning plate; 30. Feed inlet assembly; 31. First tube; 32. Second tube; 33. Adjustment mechanism; 331. Screw mounting base; 332. Adjusting screw; 333. Adjusting nut; 40. Discharge outlet assembly; 50. Guide plate. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] To address the problem of poor dust removal efficiency in existing dust removal equipment, this invention provides a dust removal device.

[0032] The dust removal equipment of this invention is mainly used for screening or removing impurities from particulate materials. The equipment has an air inlet at the bottom and an outlet at the top, creating a negative pressure space in the middle of the housing assembly 10. By adjusting the air speed, normal material particles fall into the outlet 12 under gravity, while broken particles, fine powder, dust, or other impurities are sucked away from the outlet 14 under negative pressure. This significantly reduces the impurity content of the particulate material exiting the outlet 12, improving the quality of the material particles. Specifically, to improve quality, this invention designs a dust removal device; please refer to [reference needed]. Figures 1 to 3The dust removal equipment includes: a housing assembly 10, a first conical structure 21, and a second conical structure 22. The housing assembly 10 is vertically arranged, and the first conical structure 21 and the second conical structure 22 are arranged vertically at intervals inside the housing assembly 10. During dust removal, the material enters the housing assembly 10 through the feed inlet 11 at the top of the housing assembly 10, first falls onto the first conical structure 21, and spreads out on the conical surface of the first conical structure 21, rolling downwards along the conical surface. Impurities mixed in the material, due to their small mass, are directly sucked out from the air outlet 14 under the action of negative pressure. Impurities that are not sucked out are removed. As the impurities and materials continue to fall, due to the alternating arrangement of the first conical structure 21 and the second conical structure 22, there is a free fall distance between them. At this point, the wind blows upwards, also blowing some impurities out through the air outlet 14. The materials that are not blown away fall onto the second conical structure 22 and roll along its conical surface. Since the air inlet 13 is closer to the lower end, the wind force is greater. The wind blows the impurities through the ventilation holes on the second conical structure 22. Therefore, the materials of this invention undergo three filtration and cleaning processes, resulting in a better cleaning effect.

[0033] As described above, the positions of the housing assembly 10 and the first conical structure 21 are further optimized in this embodiment. The top of the housing assembly 10 is provided with a feed inlet 11 and an air outlet 14, and the bottom of the housing assembly 10 is provided with a discharge outlet 12 and an air inlet 13. The feed inlet 11 is located at the very top, the air outlet 14 is located on one side of the top of the housing assembly 10, the discharge outlet 12 is located at the very bottom of the housing assembly 10, the air inlet 13 is located on one side of the bottom of the housing assembly 10, and the first conical structure 21 is disposed inside the housing assembly 10 and located at the feed inlet 11. Below the first cone structure 21, material entering through the feed inlet 11 slides downward along the first cone surface 211 of the first cone structure 21; the second cone structure 22 is disposed inside the housing assembly 10 and located below the first cone structure 21, so that material sliding down the first cone structure 21 slides along the cone surface of the second cone structure 22 to the discharge port 12; wherein, the second cone structure 22 is provided with ventilation holes, the air inlet 13 is disposed on the housing assembly 10 below the second cone structure 22, and the air outlet 14 is disposed on the housing assembly 10 above the first cone structure 21.

[0034] To further separate the individual particles and impurities, multiple ventilation holes are evenly distributed on the conical surfaces of the first conical structure 21 and the second conical structure 22. The ventilation holes are strip-shaped holes, and the width of the strip-shaped holes is smaller than the diameter of the normal material particles, so as to prevent the normal material particles from passing through the ventilation holes.

[0035] In this embodiment, the first conical structure 21 is placed upright inside the housing assembly 10, wherein the cone tip of the first conical structure 21 is located near the feed inlet 11 and above the first conical structure 21. In this embodiment, the second conical structure 22 is placed upside down inside the housing assembly 10, wherein the cone tip of the second conical structure 22 is located near the discharge outlet 12 and below the second conical structure 22.

[0036] The first conical structure 21 is spaced apart from the side wall of the housing assembly 10 so that material particles can slide down the first conical surface 211 evenly, achieving 360° material sliding down the conical surface and better dust removal effect.

[0037] The first conical structure 21 also includes a transition section 212 that is connected to the bottom end of the first conical surface 211 and extends downward in the vertical direction. An annular space is formed between the transition section 212 and the side wall of the housing assembly 10. The distance between each point of the transition section 212 and the side wall of the housing assembly 10 is equal, ensuring that the upward-blowing airflow passes evenly through the annular space, creating a Venturi effect within the annular space. This further removes impurities contained in the material, allowing the impurities to be discharged from the air outlet 14 under the action of the airflow and the negative pressure of the air outlet 14.

[0038] Multiple positioning plates 23 are provided between the first conical structure 21 and the side wall of the housing assembly 10. The multiple positioning plates 23 are arranged around the first conical structure 21 to fix the first conical structure 21 to the side wall of the housing assembly 10. In addition, in order to reduce the obstruction of the falling material by the positioning plates 23, the positioning plates 23 are vertically arranged on the transition section 212. The positioning plates 23 are provided with lifting holes to allow the first conical structure 21 to be lifted into the housing assembly 10. In addition, the positioning plates 23 are provided with inclined face centering mechanism, and inclined grooves or inclined blocks are provided on the inner side of the side wall of the housing assembly 10, so that when the first conical structure 21 is lifted into the housing assembly 10, the inclined face on the positioning plate 23 slides relative to the inclined groove or inclined block to position the positional relationship between the housing assembly 10 and the first conical structure 21.

[0039] The apex of the second conical structure 22 is located near the discharge port 12 and below the first conical structure 21. The first conical structure also includes a second conical surface 213, the apex of which is located below the first conical structure 21. The centerline of the second conical structure 22 coincides with the centerline of the second conical surface 213.

[0040] To ensure that the material is evenly distributed on the first conical structure 21 and the second conical structure 22, preferably, the centers of the first conical structure 21 and the second conical structure 22, as well as the centers of the inlet 11 and the outlet 12, are set on the same line. Furthermore, the centerline of the entire housing assembly 10 passes through all the aforementioned centers. The design of the second conical surface 213 is mainly based on the inner conical surface of the second conical structure 22. Its purpose is to ensure that the distance from each position on the second conical surface 213 to the corresponding position inside the second conical structure 22 is basically consistent. For example, in this invention, the second conical surface 213 can be designed to correspond to the structure of the second conical structure 22. Preferably, the second conical surface 213 is an octagonal pyramid, and the second conical structure 22 is also an octagonal pyramid structure, ensuring that the wind force and wind pressure experienced at various points on the second conical structure are basically consistent.

[0041] The first conical surface 211 and / or the second conical surface 213 are both composed of multiple plates spliced ​​together. The first conical structure 21 and / or the second conical structure 22 are polygonal structures. The first conical structure 21 and / or the second conical structure 22 are porous structures.

[0042] To facilitate manufacturing and ensure the strength of the first conical structure 21 and the second conical structure 22 with ventilation holes, both structures are polygonal cones. The first conical structure 21 has a diamond-like shape. Preferably, the first conical surface 211 is an octagonal cone surface, and the second conical surface 213 is an octagonal cone surface symmetrical to the first conical surface 211. The transition section 212 between the first and second conical surfaces 211 and 213 can be an octagonal cylinder. The first and second conical surfaces 211 and 213 are located at opposite ends of the transition section 212, together forming the first conical structure 21. The second conical structure 22 is an octagonal cone structure, inverted and arranged inside the cylinder 16. Each surface of the first and second cones is a separate plate, which is a triangular plate, welded together to form the first and second cones. In addition, the cone surfaces of the first conical surface 211, the second conical surface 213, and the second conical structure 22 can also be made of cones. However, with current technology, it is not convenient to die-cast the structure with evenly distributed elongated holes as ventilation holes on the conical surface, and the processing is difficult. Steel plates are selected for the splicing plates.

[0043] The housing assembly 10 includes a dust collector hood 15 and a cylinder 16. The dust collector hood 15 is fitted onto the outer side of the top of the cylinder 16 and communicates with the cylinder 16. Specifically, the top of the cylinder 16 is open and inserted into the dust collector hood 15, with a certain distance between the top of the cylinder 16 and the top of the dust collector hood 15. The inlet 11 and / or the outlet 14 are provided on the dust collector hood 15. The inlet 11 is located on the top of the dust collector hood 15, and the outlet 14 is located on one side of the dust collector hood 15. The inlet 13 and / or the outlet 12 are provided on the cylinder 16. An air inlet 13 is located on one side of the bottom of the cylinder 16, and a discharge port 12 is located at the bottom of the cylinder 16 and is positioned corresponding to the inlet 11 of the dust collector hood 15. The dust collector hood 15 includes a first housing 151 and a second housing 152. The second housing 152 and the first housing 151 are connected to form a dust removal space. An air outlet 14 is located at the end of the second housing 152 away from the first housing 151, and the cross-sectional area of ​​the second housing 152 gradually decreases along the direction away from the first housing 151 to increase the suction force at the air outlet 14.

[0044] In addition, the first housing can be made of multiple arc-shaped plates spliced ​​together in this embodiment. Considering that the wind speed is lower the farther away from the air outlet, the suction force is the smallest at the position of the first housing far away from the air outlet. In order to make the suction force uniform in all positions in the first housing, this embodiment has made a special design for the first housing. By reducing the effective dust removal cross-sectional area of ​​the first housing at the position far away from the air outlet, the wind speed is increased, ensuring that the entire first housing can uniformly collect dust.

[0045] The cylinder 16 has a polygonal structure, and the number of sides of the cylinder 16 and the transition section 212 are the same and correspond one-to-one.

[0046] The dust removal equipment also includes a feed inlet assembly 30, which is fixed to the dust collector hood 15 via a flange. The bottom end of the feed inlet assembly 30 is located inside the cylinder 16, and the top end of the feed inlet assembly 30 is located outside the top of the dust collector hood 15. The feed inlet 11 is located at the top of the feed inlet assembly 30. The feed inlet assembly 30 includes a first tube 31, a second tube 32, and an adjusting mechanism 33. The first tube 31 is fixed to the top of the housing assembly 10. The second tube 32 is movably sleeved on the first tube 31 to move along the axial direction of the first tube 31. The adjusting mechanism 33 is disposed on the first tube 31 and drivenly connected to the second tube 32 to adjust the distance between the second tube 32 and the first conical structure 21.

[0047] In this embodiment, the feeding speed is adjusted by the distance between the bottom of the inlet assembly 30 and the first conical surface 211. Specifically, the greater the distance between the bottom of the second tube 32 and the first conical surface 211 below, the larger the leakage space, and the faster the feeding speed. The leakage space can meet the leakage speed requirements and will not accumulate between the inlet assembly 30 and the first conical structure 21. When higher material quality is required, the feeding speed of the inlet 11 is reduced, and the distance between the second tube 32 and the first conical surface 211 is adjusted to be smaller. This makes the thickness of the material sliding down the first conical surface 211 thinner, and the effect of cleaning impurities is better.

[0048] There are many ways to adjust the distance between the bottom of the feed inlet assembly 30 and the first conical structure 21. The feed inlet assembly 30 can be moved as a whole, making it movably mounted on top of the dust collector hood 15. Alternatively, the feed inlet assembly 30 can be made telescopic, such as the second tube 32 fitted onto the first tube 31, moving vertically relative to the first tube 31. One telescopic adjustment method is described below: the adjustment mechanism 33 includes a screw mounting seat 331, an adjusting screw 332, and an adjusting nut 333. The screw mounting seat 331 is fixed to the second tube 32; the adjusting screw 332 is mounted on the screw mounting seat 331 and passes through the housing assembly 10; the adjusting nut 333 is fitted onto the adjusting screw 332 and located outside the housing assembly 10, so that rotating the adjusting nut 333 drives the adjusting screw 332 to move up and down. Alternatively, a hydraulic cylinder can be used to drive the second tube 32 to move relative to the first tube 31.

[0049] The bottom end of the second conical structure 22 is connected to the side wall of the housing assembly 10. The top of the second conical structure 22 is located below the bottom end and a material leakage port is provided on the top of the conical structure. The second conical structure 22 is connected to the inner wall of the cylinder 16. The second conical structure 22 is a polygonal structure and has the same number of sides as the cylinder 16. Thus, each side of the second conical structure 22 is welded to the inner wall of the cylinder 16 to prevent material from falling between the second conical structure 22 and the inner wall of the cylinder 16. In addition, the dust removal equipment also includes a discharge port assembly 40, which is disposed on the second conical structure 22 and communicates with the material leakage port. The discharge port 12 is disposed on the discharge port assembly 40. To facilitate the connection between the discharge port assembly 40 and the second conical structure 22, a hole is made at the top of the second conical structure 22, and the discharge port assembly 40 is inserted into the hole. Since the second conical structure 22 is inverted inside the housing assembly 10, the material slides down the conical surface on the inner side of the second conical structure into the hole and flows into the discharge port assembly 40, and finally flows out through the discharge port 12.

[0050] The dust removal equipment also includes a guide plate 50 assembly, which is disposed at the bottom of the second conical structure 22 to guide the air blown in by the air inlet 13 to the second conical structure 22. The guide plate 50 assembly includes a guide plate 50. Since the wind speed is greater closer to the air inlet 13, and the air inlet 13 is located on one side of the cylinder 16, in order to make the wind force received at various positions of the second conical structure 22 approximately the same, the guide plate 50 is obliquely disposed inside the housing assembly 10 in this invention. One end of the guide plate 50 is disposed below the air inlet 13, and the distance between the end of the guide plate 50 near the air inlet 13 and the second conical structure 22 is greater than the distance between the end of the guide plate 50 away from the air inlet 13 and the second conical structure 22. This makes the cross-sectional area at the position closer to the air inlet 13 larger than that at the position farther away from the air inlet 13, thereby basically ensuring that the flow velocity of the ventilation holes at various positions of the second conical structure 22 is basically the same.

[0051] In addition, the guide vane 50 assembly in this embodiment can also adopt a horn-shaped structure, so that it blows towards the bottom of the second conical structure 22.

[0052] To facilitate observation of the working conditions inside the housing assembly 10, multiple observation holes 17 are provided on the housing assembly 10, and at least one observation hole 17 is provided on the ball seat, dust cover 15, and cylinder 16. In addition, since the aforementioned first conical structure 21 forms a diamond structure sealing body with a first conical surface 211, a transition section 212, and a second conical surface 213, and ventilation holes are evenly distributed on the first conical surface 211, a ventilation opening 214 is provided on one side of the transition section 212, and a ventilation pipe assembly is inserted into the ventilation opening 214. The ventilation pipe assembly extends out of the housing assembly 10 and is detachably installed from the ventilation opening. Specifically, it can be fixed to the ventilation opening with screws. After the ventilation pipe assembly is assembled on the housing assembly, it forms a sealed space with the first conical structure. Since a positive pressure space is formed at the upper end of the first conical surface 211, the air is blown from here to the air outlet 14. In order to ensure the stability of the air speed at the air outlet 14 and to prevent the material particles from being sucked away, the ventilation pipe here also has the function of replenishing air, so that the outside air enters the bottom of the first conical surface 211 through the ventilation port and blows upward from the bottom. At the same time, the ventilation pipe assembly designed here can also make it convenient for people to clean the impurities inside the first conical structure 21. Furthermore, a blower mechanism can be set separately at the ventilation port 214 to blow air into the ventilation port 214.

[0053] The apex of the first conical structure 21 is the end with the smaller cross-sectional area of ​​the conical structure; it can be a pointed tip or a flat surface.

[0054] The apex of the second conical structure 22 is the end with the smaller cross-sectional area of ​​the conical structure; it can be a pointed tip or a flat surface.

[0055] like Figure 3 As shown, according to an embodiment of the present invention, the dust collector hood 15 adopts a variable cross-section structure, including a flange connected to the cylinder 16, a first housing 151, a second housing 152 and a connecting pipe. The connecting pipe adopts a polygonal structure, and its lower end is provided with a flange connected to the cylinder 16. The connecting pipe is inserted into the first housing 151.

[0056] like Figure 3 As shown, the feed port assembly 30 is fixed to the dust collector hood 15 via a connecting flange.

[0057] The main process steps of the dust removal equipment of the present invention are as follows:

[0058] 1) The material enters the feed inlet assembly 30 through the feed inlet 11 and reaches the first cone surface 211 for the first cleaning under the action of gravity;

[0059] 2) The cleaned material reaches the annular space formed between the transition section 212 and the inner wall of the shell assembly 10, where it is cleaned again by the Venturi effect in the annular space.

[0060] 3) The material undergoes a third cleaning on the conical surface of the second conical structure 22, and the cleaned material enters the downstream equipment through the discharge port 12.

[0061] The beneficial effects of the technical solution of this invention are as follows:

[0062] 1) An innovative design incorporates a 360° two-layer conical cleaning structure and a Venturi cleaning zone combination. The first conical structure adopts a diamond-like structure, with the first conical surface 211 at its upper part achieving the initial cleaning of materials. The transition section 212 and the second conical surface 213 respectively form a relative space with the shell assembly 10. This space is a Venturi effect space, used for secondary cleaning of materials. A third cleaning is formed on the inner conical surface of the second conical structure 22, improving cleaning efficiency. Simultaneously, the first conical surface 211 and the second conical structure 22 can be machined into flat plates, greatly reducing the difficulty of machining the ventilation openings with louver-like cutouts, making the industrial production of this large-scale dust collector with 360° cleaning possible.

[0063] 2) The dust hood 15 adopts a variable cross-section form. The first shell 151 adopts a volute structure similar to the variable cross-section to achieve uniform circumferential suction inside the dust hood 15, thereby improving the collection and discharge of circumferential pollutants.

[0064] 3) The feed inlet assembly 30 has a simple structure and is easy to adjust. The movement guidance of the second tube 32 is achieved through its cooperation with the first tube 31. The gap between the second tube 32 and the first conical surface 211 can be adjusted by adjusting the upper and lower adjustment mechanism 33, thereby adjusting the processing capacity and performance of the equipment. During the adjustment process, it can be observed at any time through the observation hole 17 at the top. There are no fasteners inside the entire structure that are easy to fall off, making it safer and more reliable.

[0065] 4) The vent 214 is connected to the first cone structure via a flange with a sealing ring, ensuring a more reliable seal and simpler installation. Contaminants that may accumulate inside the first cone structure can be cleaned by removing the vent 214 assembly, making contaminant removal more convenient.

[0066] 5) The first cone structure has a positioning plate 23 that is connected to the shell assembly 10 with a polygonal cross section. The positioning plate 23 is provided with a lifting hole and has an inclined surface for automatic positioning, which makes it easier to install.

[0067] 6) The angled guide plate 50 below the housing assembly 10 can achieve a uniform air velocity in the upward direction of the second cone structure ring, which further improves the cleaning effect of materials and also realizes the accumulation of pollutants that may accumulate inside at the lower air inlet 13, which facilitates the cleaning of pollutants.

[0068] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0069] The dust removal equipment of this invention is mainly used for screening or removing impurities from particulate materials. The equipment has an air inlet at the bottom and an outlet at the top, creating a negative pressure space in the middle of the housing assembly 10. By adjusting the air speed, normal material particles fall into the outlet 12 under gravity, while broken particles, fine powder, dust, or other impurities are sucked away from the outlet 14 under negative pressure. This significantly reduces the impurity content of the particulate material exiting the outlet 12, improving the quality of the material particles. Specifically, to improve quality, this invention designs a dust removal device; please refer to [reference needed]. Figures 1 to 3The dust removal equipment includes: a shell assembly 10, a first conical structure 21, and a second conical structure 22. The shell assembly 10 is vertically arranged, and the first conical structure 21 and the second conical structure 22 are arranged vertically at intervals inside the shell assembly 10. During dust removal, the material enters the shell assembly 10 through the feed inlet 11 at the top of the shell assembly 10, first falls onto the first conical structure 21, and spreads out on the conical surface of the first conical structure 21, rolling downwards along the conical surface. Impurities mixed in the material, due to their small mass, are directly sucked out from the air outlet 14 under the action of negative pressure. Impurities and materials that are not sucked out are removed. As the material continues to fall, the first conical structure 21 and the second conical structure 22 are spaced apart, allowing impurities and materials a free fall distance. At this point, the wind blows upwards, also blowing some impurities out through the air outlet 14. The material that is not blown away falls onto the second conical structure 22 and rolls along its conical surface. Since the air inlet 13 is closer to the lower end, the wind force is greater, and the wind blows the impurities through the ventilation holes on the second conical structure 22. Therefore, the material of this invention undergoes three 360° filtration and cleaning processes, resulting in a better cleaning effect.

[0070] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0071] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0072] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0073] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0074] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dust removal device, characterized in that, include: The housing assembly (10) has a feed inlet (11) and an air outlet (14) at its top, and a discharge outlet (12) and an air inlet (13) at its bottom. A first conical structure (21) is disposed within the housing assembly (10) and located below the feed inlet (11) so that material entering through the feed inlet (11) slides downward along the first conical surface (211) of the first conical structure (21); The second conical structure (22) is disposed inside the housing assembly (10) and located below the first conical structure (21) so that the material sliding down the first conical structure (21) slides along the conical surface of the second conical structure (22) to the discharge port (12). Among them, multiple ventilation holes are evenly distributed on the conical surfaces of the first conical structure (21) and the second conical structure (22), the air inlet (13) is located below the second conical structure (22), and the air outlet (14) is located above the first conical structure (21); The dust removal equipment also includes: A deflector assembly is disposed below the second conical structure (22) to guide the air blown in by the air inlet (13) to the second conical structure (22). The deflector assembly includes: A deflector plate (50) is obliquely disposed within the housing assembly (10), wherein one end of the deflector plate (50) is disposed below the air inlet (13), and the distance between the end of the deflector plate (50) near the air inlet (13) and the second conical structure (22) is greater than the distance between the end of the deflector plate (50) away from the air inlet (13) and the second conical structure (22); The housing assembly (10) is provided with a plurality of observation holes (17), and the first conical structure (21) is provided with a vent (214). The dust removal equipment also includes: A ventilation duct assembly is inserted into the ventilation opening (214), the ventilation duct assembly extends out of the outer side of the housing assembly (10), and the ventilation duct assembly is detachably disposed from the ventilation opening (214); The first conical structure (21) further includes a transition section (212) that is connected to the bottom end of the first conical surface (211) and extends downward in the vertical direction, wherein the transition section (212) forms an annular space with the side wall of the housing assembly (10); The apex of the second conical structure (22) is located below the second conical structure (22), wherein the first conical structure (21) further includes a second conical surface (213), the apex of the second conical surface (213) is located below the first conical structure (21) and is symmetrically arranged with respect to the first conical surface (211), wherein the centerline of the second conical structure (22) coincides with the centerline of the second conical surface (213); The first conical surface (211) and / or the second conical surface (213) are both composed of multiple plates spliced ​​together; The first conical structure (21) and / or the second conical structure (22) are polygonal structures.

2. The dust removal equipment according to claim 1, characterized in that, The top of the first conical structure (21) is located near the feed inlet (11) and above the first conical structure (21), and the top of the second conical structure (22) is located near the discharge outlet (12) and below the second conical structure (22).

3. The dust removal equipment according to claim 1, characterized in that, The first conical structure (21) is spaced apart from the sidewall of the housing assembly (10).

4. The dust removal equipment according to claim 3, characterized in that, A plurality of positioning plates (23) are provided between the first conical structure (21) and the side wall of the housing assembly (10). The plurality of positioning plates (23) are arranged around the first conical structure (21) to fix the first conical structure (21) on the side wall of the housing assembly (10).

5. The dust removal equipment according to claim 1, characterized in that, The first conical structure (21) and / or the second conical structure (22) are porous structures.

6. The dust removal equipment according to claim 1, characterized in that, The housing assembly (10) includes a dust hood (15) and a cylinder (16). The dust hood (15) is fitted on the outside of the top of the cylinder (16) and communicates with the cylinder (16). The feed inlet (11) and / or the air outlet (14) are provided on the dust hood (15), and the air inlet (13) and / or the discharge outlet (12) are provided on the cylinder (16).

7. The dust removal equipment according to claim 6, characterized in that, The dust removal hood (15) includes a first housing (151) and a second housing (152), the second housing (152) and the first housing (151) are connected to form a dust removal space, wherein the air outlet (14) is located at one end of the second housing (152) away from the first housing (151), and the cross-sectional area of ​​the first housing (151) gradually decreases along the direction away from the air outlet (14).

8. The dust removal equipment according to claim 6, characterized in that, The cylindrical body (16) has a polygonal structure.

9. The dust removal equipment according to claim 6, characterized in that, The dust removal equipment also includes: The feed inlet assembly (30) is fixed on the dust collector hood (15), wherein the bottom end of the feed inlet assembly (30) is located inside the cylinder (16), and the feed inlet (11) is disposed on the feed inlet assembly (30).

10. The dust removal equipment according to claim 9, characterized in that, The feed inlet assembly (30) includes: The first tube (31) is fixed to the top of the housing assembly (10); The second tube (32) is movably sleeved on the first tube (31) so as to move along the axial direction of the first tube (31); An adjustment mechanism (33) is provided on the first tube (31) and drivenly connected to the second tube (32) to adjust the distance between the second tube (32) and the first conical structure (21).

11. The dust removal equipment according to claim 10, characterized in that, The adjustment mechanism (33) includes: Screw mounting base (331), the screw mounting base (331) is fixed on the second tube body (32); An adjusting screw (332) is disposed on the screw mounting base (331) and passes through the housing assembly (10); An adjusting nut (333) is sleeved on the adjusting screw (332) and located on the outside of the housing assembly (10) so that the adjusting screw (332) can be moved up and down by rotating the adjusting nut (333).

12. The dust removal equipment according to claim 1, characterized in that, The bottom end of the second conical structure (22) is connected to the side wall of the housing assembly (10), the top of the second conical structure (22) is located below the bottom end and a discharge port is provided on the top of the conical structure, wherein the dust removal equipment further includes: The discharge port assembly (40) is disposed on the second conical structure (22) and communicates with the leakage port, and the discharge port (12) is disposed on the discharge port assembly (40).

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