Alumina powder loading and unloading dust suppression device
By designing a flexible dust collection mechanism and a discharge mechanism to prevent secondary dust generation, the problem of dust dispersion and secondary dust generation during the loading and unloading of alumina powder was solved, achieving a highly efficient dust removal effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI GUOKE ZHONGLIAN NEW MATERIALS CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-26
AI Technical Summary
Existing dust suppression devices often result in dust scattering and secondary dust generation during the loading and unloading of alumina powder, leading to poor dust removal efficiency.
A dust suppression device for loading and unloading alumina powder was designed, including a flexibly adjustable dust collection mechanism and a unloading mechanism to prevent secondary dust generation. The device absorbs dust through multiple U-shaped mounting clips, an air inlet hood, and a dust collection cylinder, and uses atomizing nozzles to spray water mist to prevent secondary dust generation.
It effectively shortens the dust travel distance, improves dust removal efficiency, prevents dust from spreading on the equipment surface, reduces secondary dust generation, and enhances overall dust removal efficiency.
Smart Images
Figure CN224410894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alumina production technology, and more specifically, to a dust suppression device for loading and unloading alumina powder. Background Technology
[0002] Alumina powder, with the chemical formula Al2O3, is a white powdery solid refined from bauxite through a series of chemical processes (such as the Bayer process). It is a compound of aluminum and oxygen and an important intermediate raw material for the production of metallic aluminum. Alumina powder needs to be stored in a silo in advance for use. Powder will be generated when alumina powder is loaded into or taken out of the silo, thus requiring the use of dust suppression devices.
[0003] The existing dust suppression devices have the following problems during use:
[0004] Firstly, when alumina powder is added to the silo or taken out from the silo outlet, the powder is scattered everywhere. The suction port of the existing dust suppression device is usually fixed in position and cannot be moved. After the dust suppression device generates negative pressure, the dust is passively scattered and can only be sucked in by the suction port after drifting a certain distance. This results in the dust having a long journey and is more likely to fall on the surface of other equipment and no longer drift, thus reducing the dust removal effect.
[0005] Secondly, when the collected dust is removed from the existing dust suppression device, the dust is easily stirred up again, polluting the working environment again and further reducing the dust removal effect. In view of this, we propose an alumina powder loading and unloading dust suppression device. Utility Model Content
[0006] This utility model addresses the technical problems existing in the prior art by providing an alumina powder loading and unloading dust suppression device to solve the problems of existing solutions.
[0007] To achieve the above objectives, this utility model provides a dust suppression device for loading and unloading alumina powder, comprising a dust collector body, wherein the dust collector body inlet is equipped with a dust suction mechanism capable of flexibly adjusting the powder inlet position, and the dust collector body outlet is equipped with a unloading mechanism for preventing secondary dust generation from the powder, wherein:
[0008] The dust collection mechanism includes a first conduit, one end of which is fixedly connected to the input end of the dust collector body, and the other end of which is fixedly connected to a second conduit. Multiple third conduits are fixedly connected to the surface of the second conduit, and one end of each of the multiple third conduits is fixedly connected to a hose. One end of each of the multiple hoses is provided with a dust collection component.
[0009] The beneficial effects of this utility model are:
[0010] 1) In this alumina powder loading and unloading dust suppression device, multiple U-shaped dust clamps are installed at various positions on the top edge of the silo or around the discharge port through U-shaped dust clamps, air inlet hoods, and dust collection cylinders. Multiple air inlet hoods are distributed on the top of the silo or around the discharge port. Dust that just floats up from the silo is absorbed by the air inlet hoods, enters the air inlet hoods, and then passes through the dust collection cylinder into the hose. The dust flows along the hose, flows through the third conduit, the second conduit, and the first conduit into the main body of the dust collector. The air inlet hoods and dust collection cylinders can move flexibly, shortening the dust travel distance and absorbing dust from the source of dust generation, preventing dust from falling on other equipment as much as possible and improving the dust removal effect.
[0011] 2) In this alumina powder loading and unloading dust suppression device, the outlet of the main body of the dust collector is opened through the unloading box, the discharge drawer and the atomizing nozzle, so that the dust inside the main body of the dust collector falls into the unloading box and the discharge drawer. The external pump introduces water into the rigid pipe and the atomizing nozzle. The atomizing nozzle atomizes the water and sprays it into the discharge drawer. The atomized droplets come into contact with the dust, and then the discharge drawer is pulled to prevent the dust from being re-entrained and to further improve the dust removal effect.
[0012] Based on the above technical solution, the present invention can be further improved as follows:
[0013] As a further improvement to this technical solution, the multiple dust collection components have the same structure. Each dust collection component includes a dust collection cylinder, the outlet of which is fixedly connected to one end of the hose, and the outlet of the dust collection cylinder is cone-shaped. The inlet end of the dust collection cylinder is fixedly connected to an air inlet hood.
[0014] The beneficial effect of adopting the above-mentioned further solution is that the dust collector body is created by the air inlet hood and the dust collection cylinder. Dust is drawn in through the air inlet hood, enters the hose through the dust collection cylinder, flows along the hose, and flows through the third conduit, the second conduit and the first conduit into the dust collector body. The dust collector body filters out the dust, and the filtered air leaves the dust collector body to enter the next processing step to collect the dust generated when alumina powder is added to or taken out of the silo.
[0015] As a further improvement to this technical solution, a mounting bracket is fixedly connected to the surface of the dust collection cylinder, and a U-shaped mounting clip is fixedly connected to the bottom of the mounting bracket.
[0016] The beneficial effect of adopting the above-mentioned further solution is that, by using U-shaped mounting clips, when alumina powder is added to the hopper from above, multiple U-shaped mounting clips are respectively clamped at various positions on the side of the hopper. When dust flies out from the top of the hopper, it is absorbed by the air inlet hood and dust collection cylinder above the U-shaped mounting clips, thus absorbing the dust at its source. When alumina powder is taken out from the bottom of the hopper, the U-shaped mounting clips are placed near the outlet of the hopper. If necessary, the U-shaped mounting clips can be placed on a platform of a certain height so that the end face of the air inlet hood is aligned with the outlet of the hopper, thus absorbing the dust at its source and preventing the dust from spreading.
[0017] As a further improvement to this technical solution, a screw is threadedly connected to one side of the U-shaped mounting clip, one end of the screw passes through the U-shaped mounting clip and is rotatably connected to a limiting plate, and the other end of the screw is fixedly connected to a nut.
[0018] The beneficial effect of adopting the above-mentioned further solution is that, by setting the cap, screw and limiting plate, when the U-shaped mounting clip is stuck on the side of the hopper, rotating the cap will drive the screw to rotate, thereby driving the limiting plate to approach the hopper until it contacts the hopper, and fixing the U-shaped mounting clip on the hopper, so as to improve the structural stability of the air inlet hood and dust collection cylinder during operation.
[0019] As a further improvement to this technical solution, a sliding groove is fixedly connected to the outer wall of the air inlet hood, a slider is slidably connected inside the sliding groove, a dust scraper is fixedly connected to one side of the slider, and one side of the dust scraper contacts the inner wall of the air inlet hood and the dust collection cylinder.
[0020] The beneficial effect of adopting the above-mentioned further solution is that, by using the dust scraper and the slider, the slider is rotated by hand, causing the dust scraper to slide against the inner wall of the air inlet hood and the dust collection cylinder, thereby scraping off the dust adhering to the inner wall of the air inlet hood and the dust collection cylinder, thus improving the dust collection efficiency of the air inlet hood and the dust collection cylinder.
[0021] As a further improvement to this technical solution, the unloading mechanism includes an unloading box, the top center of which is fixedly connected to the outlet of the dust collector body, and a discharge drawer is slidably connected inside the unloading box.
[0022] The beneficial effect of adopting the above-mentioned further solution is that by opening the outlet of the dust collector body through the discharge drawer and unloading box, the dust inside the dust collector body falls into the unloading box and discharge drawer. By pulling the discharge drawer, the discharge drawer can be removed from the unloading box and the alumina powder can be taken out.
[0023] As a further improvement to this technical solution, an installation hole is provided at one end of the top of the unloading box, and a rigid pipe is fixedly connected to the installation hole. An atomizing nozzle is fixedly connected to the bottom end of the rigid pipe, and the outlet of the atomizing nozzle is located inside the discharge drawer. A slot is provided at one end of the discharge drawer, and the slot is adapted to the atomizing nozzle.
[0024] The beneficial effect of adopting the above-mentioned further solution is that, through the rigid pipe and atomizing nozzle, the external pump body introduces the water source into the rigid pipe and atomizing nozzle, the atomizing nozzle atomizes the water source and sprays it into the discharge drawer, and the atomized droplets come into contact with the dust to prevent secondary dust generation caused by pulling the discharge drawer.
[0025] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the external first-view structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the external second-view structure of this utility model;
[0028] Figure 3 This is a schematic diagram of the internal structure of the dust collection cylinder of this utility model;
[0029] Figure 4 This is a schematic diagram of the internal structure of the unloading box of this utility model.
[0030] The meanings of the labels in the diagram are as follows:
[0031] 1. Dust collector body; 2. Dust suction mechanism; 21. First guide pipe; 22. Second guide pipe; 23. Third guide pipe; 24. Hose; 3. Unloading mechanism; 31. Unloading box; 32. Discharge drawer; 33. Mounting hole; 34. Rigid pipe; 35. Atomizing nozzle; 36. Slot; 4. Dust collection component; 41. Dust collection cylinder; 42. Air inlet hood; 43. Mounting bracket; 44. U-shaped mounting clip; 45. Screw; 46. Limiting plate; 47. Cap; 48. Slide groove; 49. Sliding block; 410. Dust scraper bar. Detailed Implementation
[0032] 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.
[0033] Please see Figures 1-4 As shown, this embodiment provides a dust suppression device for loading and unloading alumina powder, including a dust collector body 1. The dust collector body 1 includes a dust collection box, multiple filter bags, a ventilation pipe, and a fan. When the fan operates, it generates negative pressure, drawing dust into the dust collection box. The dust is filtered by the filter bags installed inside the dust collection box. The filtered air passes through the ventilation pipe and the fan to enter the next processing step. The dust collector body 1 is equipped with a dust suction mechanism 2 that can flexibly adjust the powder inlet position at the inlet. The dust collector body 1 is equipped with a discharge mechanism 3 to prevent secondary dust generation. The dust collector body 1 outlet includes a valve and a discharge pipe, etc. Opening the valve allows the dust in the dust collector body 1 to fall from the discharge pipe and leave the dust collector body 1.
[0034] The dust collection mechanism 2 includes a first conduit 21. One end of the first conduit 21 is fixedly connected to the input end of the dust collector body 1. The other end of the first conduit 21 is fixedly connected to a second conduit 22. Multiple third conduits 23 are fixedly connected to the surface of the second conduit 22. The number of third conduits 23 is at least two and can be flexibly adjusted according to the size of the hopper. One end of each of the multiple third conduits 23 is fixedly connected to a hose 24, and one end of each of the multiple hoses 24 is provided with a dust collection component 4.
[0035] Furthermore, the multiple dust collection components 4 have the same structure. Each dust collection component 4 includes a dust collection cylinder 41. The outlet of the dust collection cylinder 41 is fixedly connected to one end of the hose 24, and the outlet of the dust collection cylinder 41 is cone-shaped. The cone shape allows the dust entering the dust collection cylinder 41 to gradually gather together and enter the hose 24 together, so as to more fully absorb the alumina dust. The inlet end of the dust collection cylinder 41 is fixedly connected to an air inlet hood 42. Through the air inlet hood 42 and the dust collection cylinder 41, the dust collector body 1 is generated with negative pressure. The dust is sucked in through the air inlet hood 42, enters the hose 24 through the dust collection cylinder 41, and flows along the hose 24, passing through the third conduit 23, the second conduit 22 and the first conduit 21 into the dust collector body 1. The dust collector body 1 filters out the dust, and the filtered air leaves the dust collector body 1 to enter the next processing step to collect the dust generated when alumina powder is added to or taken out of the silo.
[0036] Furthermore, a mounting bracket 43 is fixedly connected to the surface of the dust collection cylinder 41, and a U-shaped mounting clip 44 is fixedly connected to the bottom of the mounting bracket 43. When alumina powder is added to the hopper from above, multiple U-shaped mounting clips 44 are respectively clamped at various positions on the side of the hopper. When dust flies out from the top of the hopper, it is absorbed by the air inlet hood 42 above the U-shaped mounting clip 44 and the dust collection cylinder 41, thus absorbing dust from the source of dust generation. When alumina powder is taken out from below the hopper, the U-shaped mounting clip 44 is placed near the outlet of the hopper. If necessary, the U-shaped mounting clip 44 can be placed on a platform of a certain height so that the end face of the air inlet hood 42 is aligned with the outlet of the hopper, thus absorbing dust from the source of dust and preventing dust diffusion.
[0037] Furthermore, a screw 45 is threadedly connected to one side of the U-shaped mounting clip 44. One end of the screw 45 passes through the U-shaped mounting clip 44 and is rotatably connected to a limit plate 46. The other end of the screw 45 is fixedly connected to a nut 47. Figure 3 As shown, by setting up the cap 47, screw 45 and limiting plate 46, when the U-shaped mounting clip 44 is stuck on the side of the hopper, rotating the cap 47 will drive the screw 45 to rotate, thereby driving the limiting plate 46 to approach the hopper until it contacts the hopper, fixing the U-shaped mounting clip 44 on the hopper, so as to improve the structural stability of the air inlet hood 42 and dust collection cylinder 41 during operation.
[0038] Furthermore, a groove 48 is fixedly connected to the outer wall of the air inlet hood 42, and a slider 49 is slidably connected inside the groove 48. A dust scraper 410 is fixedly connected to one side of the slider 49. One side of the dust scraper 410 contacts the inner wall of the air inlet hood 42 and the dust collection cylinder 41. By holding the slider 49 and rotating it, the dust scraper 410 slides against the inner wall of the air inlet hood 42 and the dust collection cylinder 41, scraping off the dust adhering to the inner wall of the air inlet hood 42 and the dust collection cylinder 41, thereby improving the dust collection efficiency of the air inlet hood 42 and the dust collection cylinder 41.
[0039] Furthermore, the unloading mechanism 3 includes an unloading box 31, the top center of which is fixedly connected to the outlet of the dust collector body 1. A discharge drawer 32 is slidably connected inside the unloading box 31. Through the discharge drawer 32 and the unloading box 31, material is discharged... Figure 4 As shown, open the outlet of the dust collector body 1 so that the dust inside the dust collector body 1 falls into the unloading box 31 and the discharge drawer 32. Pull the discharge drawer 32 so that the discharge drawer 32 leaves the unloading box 31 and the alumina powder can be taken out.
[0040] Furthermore, a mounting hole 33 is provided at one end of the top of the unloading box 31. A rigid pipe 34 is fixedly connected to the mounting hole 33. A pump body is connected to the outside of the rigid pipe 34, and the pump body introduces external water into the rigid pipe 34. An atomizing nozzle 35 is fixedly connected to the bottom end of the rigid pipe 34, and the outlet of the atomizing nozzle 35 is located inside the discharge drawer 32. A slot 36 is provided at one end of the discharge drawer 32, and the slot 36 is adapted to the atomizing nozzle 35. Figure 4 As shown, when the discharge drawer 32 slides along the inside of the unloading box 31 and leaves the unloading box 31, the slot 36 passes through the atomizing nozzle 35. The discharge drawer 32 will not contact the rigid pipe 34 and the atomizing nozzle 35. Through the rigid pipe 34 and the atomizing nozzle 35, the external pump body introduces water into the rigid pipe 34 and the atomizing nozzle 35. The atomizing nozzle 35 atomizes the water and sprays it into the discharge drawer 32. The atomized droplets come into contact with the dust to prevent secondary dust generation caused by pulling the discharge drawer 32.
[0041] In summary, the working principle of this solution is as follows:
[0042] When the dust suppression device is needed to collect dust generated by alumina powder added to the hopper, multiple U-shaped mounting clips 44 are respectively locked in various positions on the side of the hopper. Rotating the screw cap 47 drives the screw 45 to rotate, thereby driving the limiting plate 46 to approach the hopper until it contacts the hopper, fixing the U-shaped mounting clips 44 on the hopper. This causes multiple air inlet hoods 42 to be distributed on the top of the hopper, creating a negative pressure in the dust collector body 1. The dust that just floated up from the hopper is absorbed by the air inlet hoods 42 on the top of the hopper. The dust enters the air inlet hoods 42, then passes through the dust collection cylinder 41 and enters the flexible hose 24. The dust flows along the flexible hose 24 and flows through the third guide... Pipe 23, second conduit 22 and first conduit 21 enter the dust collector body 1. The dust collector body 1 filters out the dust. The filtered air leaves the dust collector body 1 and enters the next processing step. Meanwhile, the operator intermittently holds the slider 49 to rotate it, causing the dust scraper 410 to slide against the inner wall of the air inlet hood 42 and the dust collection cylinder 41, scraping off the dust attached to the inner wall of the air inlet hood 42 and the dust collection cylinder 41. When it is necessary to use this dust suppression device to collect the dust generated by the alumina powder taken out from the hopper outlet, the U-shaped mounting clip 44 is placed near the outlet of the hopper, and the above dust removal process is repeated.
[0043] When it is necessary to remove the collected dust from the outlet of the dust collector body 1, open the outlet of the dust collector body 1 so that the dust inside the dust collector body 1 falls into the unloading box 31 and the discharge drawer 32. The external pump introduces water into the rigid pipe 34 and the atomizing nozzle 35. The atomizing nozzle 35 atomizes the water and sprays it into the discharge drawer 32. The atomized droplets come into contact with the dust to prevent secondary dust re-entrainment.
[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dust control device for loading and unloading of alumina powder, comprising a dust collector body (1), characterized in that: The dust collector body (1) is equipped with a dust suction mechanism (2) at the inlet that can flexibly adjust the powder inlet position, and the dust collector body (1) is equipped with a discharge mechanism (3) at the outlet to prevent secondary dust generation. The dust collection mechanism (2) includes a first conduit (21), one end of which is fixedly connected to the input end of the dust collector body (1), and the other end of which is fixedly connected to a second conduit (22). Multiple third conduits (23) are fixedly connected to the surface of the second conduit (22), and one end of each of the multiple third conduits (23) is fixedly connected to a hose (24). One end of each of the multiple hoses (24) is provided with a dust collection component (4).
2. The alumina powder loading and unloading dust suppression device according to claim 1, characterized in that: The multiple dust collection components (4) have the same structure. Each dust collection component (4) includes a dust collection cylinder (41). The outlet of the dust collection cylinder (41) is fixedly connected to one end of the hose (24), and the outlet of the dust collection cylinder (41) is set to be conical. The inlet end of the dust collection cylinder (41) is fixedly connected to an air inlet hood (42).
3. The alumina powder loading and unloading dust suppression device according to claim 2, characterized in that: The dust collection cylinder (41) is fixedly connected to a mounting bracket (43), and a U-shaped mounting clip (44) is fixedly connected to the bottom of the mounting bracket (43).
4. The alumina powder loading and unloading dust suppression device according to claim 3, characterized in that: The U-shaped mounting clip (44) is threaded with a screw (45) on one side. One end of the screw (45) passes through the U-shaped mounting clip (44) and is rotatably connected to a limiting plate (46). The other end of the screw (45) is fixedly connected to a nut (47).
5. The alumina powder loading and unloading dust suppression device according to claim 2, characterized in that: The outer wall of the air inlet hood (42) is fixedly connected to a sliding groove (48), and a slider (49) is slidably connected inside the sliding groove (48). A dust scraper (410) is fixedly connected to one side of the slider (49), and one side of the dust scraper (410) contacts the inner wall of the air inlet hood (42) and the dust collection cylinder (41).
6. The alumina powder loading and unloading dust suppression device according to claim 1, characterized in that: The unloading mechanism (3) includes an unloading box (31), the top center of which is fixedly connected to the outlet of the dust collector body (1), and a discharge drawer (32) is slidably connected inside the unloading box (31).
7. The alumina powder loading and unloading dust suppression device according to claim 6, characterized in that: The unloading box (31) has an installation hole (33) at one end of its top. A rigid pipe (34) is fixedly connected to the installation hole (33). An atomizing nozzle (35) is fixedly connected to the bottom end of the rigid pipe (34). The outlet of the atomizing nozzle (35) is located inside the discharge drawer (32). A slot (36) is provided at one end of the discharge drawer (32). The slot (36) is adapted to the atomizing nozzle (35).