Device for dust removal of precoated sand
Through the design of the filter plate and moving mechanism in the cylinder, the piston member is used to change the air pressure to achieve the blowing effect, which solves the problem of dust flying and collection difficulties in coating sand processing, and achieves efficient dust removal.
Patent Information
- Application Number
- CN202421641807.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-11
AI Technical Summary
In the prior art, dust removal effect is poor during coating sand processing, and dust is easy to fly and difficult to collect, which affects the dust removal effect.
The filter plate and moving mechanism in the cylinder are adopted to change the air pressure through the vertical movement of the piston member to realize the blowing effect on the filter plate. Combined with the first air outlet and baffle design, the dust discharge position is fixed for easy collection.
Effectively avoid dust flying, optimize the dust removal effect of coated sand, improve the dust collection efficiency, and reduce the residue of dust in the sand particles.
Smart Images
Figure CN223129268U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of coated sand processing, and in particular to a device for removing dust from coated sand. Background Art
[0002] Coated sand is molding sand or core sand with a solid resin film coated on the surface of sand grains before molding. The raw materials of coated sand include natural quartz sand as the original sand, thermoplastic phenolic resin for coating the original sand, curing agent, reinforcing agent, etc.
[0003] During the production of coated sand, it is necessary to perform dust removal operations on the sand grains of coated sand to reduce the impact of dust on the environment. Currently, in related technologies, a filtering structure is mostly used to screen out dust to achieve the separation of dust and sand grains.
[0004] However, although the method of screening out dust can achieve the separation of dust and sand grains, the screening process is prone to cause light dust to fly, and the flying dust is not easy to collect and is likely to fall back into the sand grains again, affecting the dust removal effect.
[0005] Regarding the above-mentioned related technologies, the inventor believes that there are defects in the poor dust removal effect during the processing of coated sand. Utility Model Content
[0006] In order to improve the dust removal effect during the processing of coated sand, the present application provides a device for removing dust from coated sand.
[0007] The device for removing dust from coated sand provided by the present application adopts the following technical solutions:
[0008] A device for removing dust from coated sand includes: a cylinder body, an inlet is provided on the cylinder body, and a cover is provided on the inlet; a filtering mechanism, including a filter plate, the filter plate is arranged inside the cylinder body and below the inlet; a dust removal mechanism, including a first air outlet, a first one-way valve and a ventilation port, the first air outlet and the first one-way valve are both arranged on the side wall of the cylinder body, the first air outlet and the first one-way valve are both above the filtering mechanism, the first one-way valve allows external air to enter the cylinder body, the ventilation port is arranged at the lower end of the cylinder body, a first baffle is provided at the first air outlet, one end of the first baffle is rotatably connected to the cylinder body, and the other end of the first baffle overlaps on the outer side of the side wall of the cylinder body, so that the air in the cylinder body is discharged from the first air outlet to the outside of the cylinder body; a moving mechanism, including a driving member and a piston member, the driving member is arranged below the cylinder body, the piston member is arranged inside the cylinder body, the piston member is below the filter plate, the circumference of the piston member is slidably connected to the inner side of the side wall of the cylinder body, the driving member is connected to the piston member, and the driving member drives the piston member to move towards or away from the filter plate.
[0009] By adopting the above technical solution, after the coated sand enters the cylinder through the feeding port, the feeding port is sealed by the cover to prevent dust from being discharged from the feeding port and causing dust flying. After the coated sand enters the cylinder, it falls on the filter plate. The driving member drives the piston member to move linearly in the cylinder in the vertical direction, changing the air pressure below the filter plate. Thus, the blowing action on the filter plate can be realized by the upward movement of the piston member, enabling air to pass through the filter plate to blow the coated sand, causing the dust in the coated sand to be blown up and achieving dust removal. At the same time, the magnitude of the blowing action can be adjusted through the moving distance of the piston member to optimize the dust removal effect. Moreover, the first baffle at the first air outlet can be opened by blowing, discharging the dust outside the cylinder, fixing the discharge position of the dust for convenient dust collection and further optimizing the dust removal effect. Since a first one-way valve is provided above the filter plate and an air vent is provided below the filter plate, the air pressure in the cylinder can cyclically change with the movement of the piston member, and thus the blowing action on the coated sand on the filter plate can be reliably realized.
[0010] Optionally, the filtering mechanism further includes a rotating shaft member and a spiral member. The upper end of the rotating shaft member is rotatably connected to the upper end of the cylinder, the other end of the rotating shaft member is clamped to the filter plate, the upper end of the spiral member is connected to the rotating shaft member, and the other end of the spiral member is spirally connected to the piston member.
[0011] By adopting the above technical solution, the rotating shaft member realizes the supporting function for the filter plate, limiting the position of the filter plate in the vertical direction. The spiral member is spirally connected to the piston member, so that when the piston member moves vertically, the filter plate can be driven to rotate, enabling the coated sand to move relatively on the filter plate. Combining with the blowing action brought by the vertical movement of the piston member helps to optimize the dust removal effect on the coated sand and alleviate the problem that the dust is not easily blown up due to the accumulation of the coated sand.
[0012] Optionally, the filter plate includes a first filtering part and a second filtering part. A convex part is provided at the lower end of the rotating shaft member, and concave parts are provided on both the first filtering part and the second filtering part, and the concave parts are clamped to the convex part.
[0013] By adopting the above technical solution, both the first filtering part and the second filtering part can be clamped to the rotating shaft member to realize the limiting function of the filter plate in the vertical direction. At the same time, since the filter plate is spliced by the mutually independent first filtering part and the second filtering part, the filter plate can be separated from the rotating shaft member by horizontally moving the first filtering part and the second filtering part away from the rotating shaft member, reducing the disassembly and assembly difficulty.
[0014] Optionally, the piston member includes a piston portion and a connecting portion. The circumferential direction of the piston portion is slidably connected to the inner side of the side wall of the cylinder body. One end of the connecting portion is connected to the piston portion, and the other end of the connecting portion is connected to the driving member. A groove is provided in the connecting portion, and the groove cooperates with the spiral member so that the vertical movement of the piston member drives the spiral member to rotate.
[0015] By adopting the above technical solution, the piston portion functions to press the air below the filter plate into the upper part of the filter plate to blow the coated sand; the connecting portion connected to the piston portion realizes a spiral connection with the spiral member by providing a groove, so that when the piston portion moves vertically, it can drive the filter plate to rotate.
[0016] Optionally, the dust removal mechanism further includes a second one-way valve, a second air outlet and a suction member. The second one-way valve is provided in the air vent to allow external air to enter the cylinder body. The second air outlet is provided on the side wall of the cylinder body, and the second air outlet is connected to the suction member. The piston portion moves vertically above or below the second air outlet.
[0017] By adopting the above technical solution, the second one-way valve allows air to enter the cylinder body below the piston portion, and the second air outlet is used to discharge the air in the cylinder body below the filter plate so that the piston portion can reciprocate; the second air outlet is connected to the suction member, so that the dust and impurities falling on the piston portion via the filter plate can be sucked out of the cylinder body, optimizing the dust removal effect.
[0018] Optionally, the second air outlet is provided with a second baffle. The upper end of the second baffle is rotatably connected to the cylinder body, and the lower end of the second baffle overlaps the outer side of the side wall of the cylinder body.
[0019] By adopting the above technical solution, the second baffle can only be opened in a direction away from the cylinder body, so that the dust and impurities below the filter plate can be discharged through the second air outlet, and it will not interfere with the piston portion.
[0020] Optionally, both the first air outlet and the suction member are communicated with a dust collecting member, and the dust collecting member is provided on one side of the cylinder body.
[0021] By adopting the above technical solution, the dust and impurities discharged from the cylinder body can be collected in the dust collecting member, reducing dust flying and facilitating the collection and treatment of the discharged dust and impurities.
[0022] Optionally, the cylinder body is provided with a through groove, and the height of the through groove is greater than the height of the filter plate. The through groove is used to remove the filter plate.
[0023] By adopting the above technical solution, it is convenient to remove the filter plate and can also remove the coated sand carried on the filter plate from the cylinder body.
[0024] Optionally, a connecting shaft, a flip cover and a fastening member are provided on the outer side of the side wall of the cylinder body. The connecting shaft is provided below the through groove. The flip cover is rotatably connected to the connecting shaft. The fastening member includes a first fastening portion and a second fastening portion. The first fastening portion is provided on the outer side of the side wall of the cylinder body, and the second fastening portion is provided on the flip cover. The second fastening portion is used to fasten or unfasten from the first fastening portion.
[0025] By adopting the above technical solution, during dust removal, the filter plate can be circumferentially sealed by the flip cover to prevent the filter plate and the coated sand thereon from falling out of the cylinder body; after dust removal, the flip cover is opened to facilitate the removal of the filter plate and the coated sand.
[0026] Optionally, a supporting member is provided on the inner side of the side wall of the cylinder body, and the supporting member abuts against the lower side of the filter plate.
[0027] By adopting the above technical solution, it can play a horizontal guiding role when installing the filter plate, and can support the filter plate when the filter plate rotates, improving reliability.
[0028] In summary, the present application includes at least one of the following beneficial technical effects:
[0029] 1. After the coated sand enters the cylinder body through the feeding port, the feeding port is sealed by the cover to prevent dust from being discharged from the feeding port and causing dust flying; after the coated sand enters the cylinder body, it falls on the filter plate. The driving member drives the piston member to linearly move in the cylinder body in the vertical direction, changing the air pressure below the filter plate. Thus, the blowing action on the filter plate can be realized by the upward movement of the piston member, enabling air to pass through the filter plate to blow the coated sand, so that the dust in the coated sand is blown up to achieve dust removal. At the same time, the magnitude of the blowing action can be adjusted through the moving distance of the piston member to optimize the dust removal effect; and, the first baffle at the first air outlet can be opened by blowing, discharging the dust outside the cylinder body, making the discharge position of the dust fixed, facilitating the collection of dust, and further optimizing the dust removal effect; since a first one-way valve is provided above the filter plate and a vent hole is provided below the filter plate, the air pressure in the cylinder body can be cyclically changed with the movement of the piston member, and thus the blowing action on the coated sand on the filter plate can be reliably realized;
[0030] 2. The rotating shaft member realizes the supporting function for the filter plate, defining the position of the filter plate in the vertical direction; the spiral member is in screw connection with the piston member, so that when the piston member moves vertically, the filter plate can be driven to rotate, enabling the coated sand to move relatively on the filter plate. Combining with the blowing action brought by the vertical movement of the piston member helps to optimize the dust removal effect on the coated sand and alleviate the problem that the dust is not easily blown up due to the accumulation of the coated sand;
[0031] 3. Both the first filtering part and the second filtering part can be clamped to the rotating shaft member to limit the filter plate in the vertical direction. At the same time, since the filter plate is formed by splicing the mutually independent first filtering part and the second filtering part, the filter plate can be horizontally moved away from the rotating shaft member through the first filtering part and the second filtering part, realizing the disassembly of the filter plate and the rotating shaft member, and reducing the disassembly and assembly difficulty. Description of the Drawings
[0032] Figure 1 is the overall schematic diagram of the device for dust removal of coated sand in the embodiment of the present application.
[0033] Figure 2 is the top view of the device for dust removal of coated sand in the embodiment of the present application.
[0034] Figure 3 is Figure 2 the sectional view at A-A in
[0035] Figure 4 is the schematic diagram of the first filtering part in the embodiment of the present application.
[0036] Description of the Reference Numerals:
[0037] 1. Cylinder body; 11. Feed inlet; 12. Cover; 13. Support member; 14. Connecting shaft; 15. Flipping cover; 161. First fastening part; 162. Second fastening part; 17. Bracket; 18. Protruding part;
[0038] 2. Filter mechanism; 211. First filtering part; 212. Second filtering part; 22. Rotating shaft member; 221. Protruding part; 23. Spiral member; 24. Concave part; 25. Enclosing plate;
[0039] 31. First air outlet; 32. First one-way valve; 33. Second one-way valve; 34. First baffle; 35. Second air outlet; 36. Suction member; 37. Dust collecting member; 38. Second baffle; 39. Dust collecting pipeline;
[0040] 4. Moving mechanism; 41. Driving member; 42. Piston member; 421. Piston part; 422. Connecting part; 423. Groove. Detailed Embodiment
[0041] The following combines the attached Figures 1-4A further detailed description is given to this application. In this embodiment, unless otherwise clearly specified, "connection", "connection together" and "fixation" are understood in a broad sense, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection, and interaction between two components, etc., and can be understood according to specific circumstances. Without contrary explanation, the orientation words such as "inside, outside" used in this application refer to the outline of the corresponding component itself.
[0042] As Figure 1 shown, an embodiment of this application discloses a device for dust removal of coated sand (hereinafter simply referred to as "device"), which includes a cylinder body 1, a filtering mechanism 2, a dust removal mechanism, and a moving mechanism 4, and is used to remove dust in sand grains such as coated sand.
[0043] The cylinder body 1 is provided with a feeding port 11, and the sand grains enter the cylinder body 1 through the feeding port 11 for dust removal. The feeding port 11 is provided with a cover 12, which is used to close the feeding port 11 when the sand grains in the cylinder body 1 are being dusted, so as to avoid the dust flying through the feeding port 11, resulting in a decline in the quality of the processing environment and affecting the dust removal effect.
[0044] As Figures 1-3 shown, the filtering mechanism 2 includes a filter plate, the filter plate is arranged inside the cylinder body 1, and the filter plate is arranged below the feeding port 11, so that the sand grains can fall onto the filter plate via the feeding port 11. The filter plate is provided with filter holes. When the sand grains fall onto the filter plate, the sand grains are carried on the filter plate, and the dust with a particle size smaller than that of the sand grains can pass through the filter holes and fall below the filter plate, realizing the preliminary dust removal of the sand grains. It can be understood that the diameter of the filter holes is smaller than the particle size of the sand grains, or a filter net can be arranged on the filter plate so that the sand grains can stay on the filter net and the dust can pass through the filter net.
[0045] The dust removal mechanism includes a first air outlet 31, a first one-way valve 32, and an air vent. The first air outlet 31 and the first one-way valve 32 are both arranged on the side wall of the cylinder body 1, and both the first air outlet 31 and the first one-way valve 32 are arranged above the filtering mechanism 2. The first one-way valve 32 allows external air to enter the cylinder body 1, and the first air outlet 31 is used to discharge the air in the cylinder body 1, so that the air can enter the cylinder body 1 through the first one-way valve 32 and flow towards the first air outlet 31. The air flow drives the dust in the sand grains to fly, and is transported to the first air outlet 31 along with the air flow, realizing the dust removal of the sand grains.
[0046] As Figure 3As shown in the figure, the moving mechanism 4 includes a driving member 41 and a piston member 42. The driving member 41 is disposed below the cylinder body 1, and the piston member 42 is disposed inside the cylinder body 1 and below the filter plate. The circumferential direction of the piston member 42 is slidably connected to the inner side wall of the cylinder body 1. The driving member 41 is connected to the piston member 42 to drive the piston member 42 to move in a direction close to or away from the filter plate. The lower end of the cylinder body 1 is provided with a ventilation port for enabling the lower side of the piston member 42 in the cylinder body 1 to communicate with the atmosphere. Through the first air outlet 31, the first one-way valve 32 and the ventilation port, both the upper side and the lower side of the piston member 42 can communicate with the atmosphere, so that the piston member 42 can smoothly reciprocate vertically in the cylinder body 1. Therefore, the air pressure in the cylinder body 1 can cyclically change with the movement of the piston member 42, and the blowing effect on the sand particles on the filter plate can be reliably realized, avoiding the formation of excessive negative pressure and affecting the movement of the piston member 42. The driving member 41 can be a telescopic cylinder, a hydraulic cylinder or a telescopic rod and other structures that can realize telescoping. The device further includes a bracket 17 for supporting the cylinder body 1. The lower end of the cylinder body 1 is provided with a connection hole for cooperating with the moving mechanism 4 to enable the driving member 41 to drive the piston member 42.
[0047] After the sand particles enter the cylinder body 1 through the feed inlet 11, the feed inlet 11 is sealed by the cover 12 to prevent dust from being discharged from the feed inlet 11 and causing dust flying. After the sand particles enter the cylinder body 1, they fall on the filter plate. The driving member 41 drives the piston member 42 to linearly move vertically in the cylinder body 1, causing the air pressure above and below the filter plate to change. By the upward movement of the piston member 42, the air in the cylinder body 1 passes through the filter plate from below the filter plate and moves upward, realizing the blowing effect on the filter plate, enabling the air to pass through the filter plate to blow the sand particles, blowing up the dust in the sand particles, and discharging the dust through the first air outlet 31 from the cylinder body 1, realizing the dust removal of the sand particles. At the same time, the magnitude of the blowing effect can be adjusted by the moving distance of the piston member 42 to optimize the dust removal effect.
[0048] As Figure 3 shown, the first air outlet 31 is provided with a first baffle 34. One end of the first baffle 34 is rotatably connected to the cylinder body 1, and the other end of the first baffle 34 overlaps on the outer side wall of the cylinder body 1, so that the first baffle 34 can only open in a direction away from the cylinder body 1, that is, the first air outlet 31 is used for discharging the air in the cylinder body 1 to the outside of the cylinder body 1. Through the blowing effect formed by the upward movement of the piston member 42, the first baffle 34 at the first air outlet 31 is opened, and the dust is discharged outside the cylinder body 1, so that the discharge position of the dust is fixed, which is convenient for collecting the dust, reducing the flying of the blown dust everywhere, and optimizing the dust removal effect. The first baffle 34 is in an initial state of closing the first air outlet 31 and rotates to open when the air pressure in the cylinder body 1 is relatively large.
[0049] Optionally, the filtering mechanism 2 further includes a rotating shaft member 22 and a spiral member 23. A clamping portion may be provided at the end of the rotating shaft member 22, and the clamping portion is arranged outside the upper end of the cylinder body 1 to realize the limiting effect on the rotating shaft member 22 in the vertical direction. The rotating shaft member 22 passes through the upper end portion of the cylinder body 1 and extends vertically downward, and the rotating shaft member 22 is rotatably connected to the upper end of the cylinder body 1, so that the rotating shaft member 22 can rotate around its own axis. The other end of the rotating shaft member 22 is clamped with the filter plate, so that the filter plate can rotate with the rotation of the rotating shaft member 22. The upper end of the spiral member 23 is connected to the lower end portion of the rotating shaft member 22, and the filter plate is located between the rotating shaft member 22 and the spiral member 23 in the vertical direction. The rotating shaft member 22 can support the filter plate and limit the position of the filter plate in the vertical direction.
[0050] As Figure 3 shown, the other end of the spiral member 23 is spirally connected to the piston member 42. When the piston member 42 moves vertically, the spiral member 23 can be rotated, thereby driving the rotating shaft member 22 to rotate, and further causing the filter plate to rotate. The rotation of the filter plate makes the coated sand on it move relatively on the filter plate, which helps to separate the dust from the sand grains and alleviates the problem that the dust is not easily blown up due to the accumulation of sand grains; combined with the blowing effect brought by the vertical movement of the piston member 42, it helps to optimize the dust removal effect on the sand grains. To realize the rotation of the filter plate, the cross-sections of the cylinder body 1 and the filter plate can both be circular.
[0051] As Figure 3 shown, optionally, the piston member 42 includes a piston portion 421 and a connecting portion 422. The cross-section of the piston portion 421 is circular, and the circumference of the piston portion 421 is slidably connected to the inner side wall of the cylinder body 1. A sealing ring may be provided on the circumference of the piston portion 421 to prevent gas from flowing through the gap between the circumference of the piston portion 421 and the side wall of the cylinder body 1, which affects the pushing effect on the air above the piston portion 421. The piston portion 421 serves to press the air below the filter plate through the filter holes into the upper part of the filter plate, thereby blowing up the dust in the sand grains; and, when the piston portion 421 moves downward, it can make the air above the filter plate flow downward through the filter plate, so that the relatively heavy and non-flying dust in the sand grains can be sucked onto the piston portion 421 through the filter holes, realizing the separation of the dust from the sand grains.
[0052] One end of the connecting portion 422 is connected to the piston portion 421, and the other end of the connecting portion 422 is connected to the driving member 41, so as to realize the connection between the driving member 41 and the piston portion 421 through the connecting portion 422, so that the driving member 41 drives the piston portion 421 to reciprocate vertically. A groove 423 is provided in the connecting portion 422. The groove 423 extends vertically and is helically arranged, so that the groove 423 can cooperate with the helical member 23. By the vertical movement of the piston member 42, the helical member 23 is driven to rotate, and then the filter plate can be driven to rotate. It can be understood that the connecting portion 422 can be a rod-shaped structure passing through the piston portion 421. The cooperation between the connecting portion 422 and the helical member 23 is similar to the cooperation mode of a ball screw, or a cooperation mode such as a bamboo dragonfly with a screw rod, as long as the linear motion can be converted into a rotary motion.
[0053] As Figure 3 shown, optionally, the dust removal mechanism further includes a second one-way valve 33, a second air outlet 35 and a suction member 36. The second one-way valve 33 is arranged in the ventilation port, so that external air enters the cylinder 1 below the piston portion 421, so that the piston member 42 can move upward, blow up the dust on the filter plate, and be discharged from the first air outlet 31 along with the air flow. The second air outlet 35 is arranged on the side wall of the cylinder 1 for discharging the air in the cylinder 1 below the filter plate, so that the piston portion 421 can reciprocate. The second air outlet 35 is connected to the suction member 36, which helps to reduce the air pressure below the piston portion 421, so that the piston portion 421 can move downward more smoothly. Moreover, the piston portion 421 can be located above or below the second air outlet 35 during the vertical movement. Thus, through the arrangement of the suction member 36, the dust impurities falling on the piston portion 421 via the filter plate can be sucked out of the cylinder 1, optimizing the dust removal effect. The suction member 36 can be an air pump, a vacuum cleaner or other structures that can suck in and discharge dust. The suction port of the suction member 36 is communicated with the second air outlet 35.
[0054] Optionally, the second air outlet 35 is provided with a second baffle 38. The upper end of the second baffle 38 is rotatably connected to the cylinder 1, and the lower end of the second baffle 38 is lapped on the outer side of the side wall of the cylinder 1. The second baffle 38 can only open in a direction away from the cylinder 1. Thus, when the air pressure below the piston portion 421 is relatively large, the second baffle 38 can be opened, and the dust impurities below the filter plate are discharged through the second air outlet 35. Moreover, the second baffle 38 opens outward and will not interfere with the piston portion 421.
[0055] As Figure 3As shown, optionally, the first air outlet 31 and the air suction member 36 are both connected to the dust collecting member 37, and the dust collecting member 37 is arranged on one side of the cylinder body 1. The dust and impurities discharged from the cylinder body 1 are collected in the dust collecting member 37, which can reduce the dust flying, facilitate the collection and treatment of the discharged dust and impurities, reduce the dust flying outside the cylinder body 1, and optimize the working environment. The dust collecting member 37 can be a box body, and the upper end of the box body is respectively connected to the first air outlet 31 and the air suction member 36 through a dust collecting pipeline 39. After a period of dust removal processing, the dust can be cleaned by disassembling the dust collecting member 37. When the piston portion 421 is located above the second air outlet 35, the piston portion 421 moves downward and exhausts through the second air outlet 35. At this time, the air suction member 36 can be started to improve the exhaust efficiency; when the piston portion 421 moves to be horizontal with or below the second air outlet 35, that is, when the top of the piston portion 421 is lower than the top of the second air outlet 35, the air suction member 36 is started to suck out the dust on the top of the piston portion 421.
[0056] As Figure 3 and Figure 4 As shown, optionally, the filter plate includes a first filter portion 211 and a second filter portion 212 that are both semi-circular. A convex portion 221 is provided at the lower end of the rotating shaft member 22. The first filter portion 211 and the second filter portion 212 are both provided with concave portions 24, and the concave portions 24 are clamped with the convex portion 221 to realize the limiting effect of the filter plate in the vertical direction. At the same time, since the filter plate is spliced by the mutually independent first filter portion 211 and the second filter portion 212, it can horizontally move away from the rotating shaft member 22 through the first filter portion 211 and the second filter portion 212 to realize the disassembly of the filter plate and the rotating shaft member 22, reducing the disassembly and assembly difficulty. The shapes of the convex portion 221 and the concave portion 24 are not limited, as long as they can cooperate with each other to realize the clamping function, limit the vertical movement of the filter plate and can rotate synchronously.
[0057] Optionally, the cylinder body 1 is provided with a through groove corresponding to the position of the filter plate for removing the first filter portion and the second filter portion. The height of the through groove is greater than the height of the filter plate to facilitate the removal of the sand grains after dust removal carried by the filter plate from the cylinder body 1.
[0058] As Figure 3As shown, optionally, a support member 13 is provided inside the side wall of the cylinder body 1. The support member 13 can be an annular plate-like member or several block structures circumferentially distributed on the side wall of the cylinder body 1. The support member 13 abuts against the lower side of the filter plate, which can play a horizontal guiding role when installing the filter plate and support the filter plate when the filter plate rotates, improving reliability. A surrounding plate 25 can be provided in the circumferential direction of the filter plate. The surrounding plate is an annular structure and is disposed around the circumferential side surface of the filter plate. The height of the surrounding plate 25 is greater than the thickness of the filter plate, and the height of the surrounding plate 25 is the same as that of the through groove. Thus, a relatively complete cylinder wall is formed by the surrounding plate 25 and the side wall of the cylinder body 1, avoiding the formation of an empty groove in the circumferential direction of the filter plate and causing sand grains to accumulate in the empty groove. When the filter plate rotates, the sand grains will move away from the rotating shaft member 22 due to the centrifugal force, and the surrounding plate 25 can block the sand grains from moving out of the cylinder body 1. The surrounding plate 25 can be composed of two separated parts so as to respectively correspond to the first filtering part 211 and the second filtering part 212. When removing the first filtering part 211 and the second filtering part 212, the surrounding plate 25 can reduce the dropping of the sand grains, and through the blocking of the side wall of the cylinder body 1, most of the sand grains located at the surrounding plate 25 can be made to move towards the direction close to the rotating shaft member 22, further reducing the dropping of the sand grains.
[0059] As Figures 1-3As shown, optionally, in order to facilitate the setting of the through slot, a protruding member 18 is provided on the cylinder body 1, and the through slot is opened on the opposite sides of the protruding member 18, so that the cylinder body 1 is an integral structure, avoiding the separation of the upper and lower ends of the cylinder body 1 due to the setting of the through slot. In this embodiment, the cross-section of the protruding member 18 is rectangular, and the length and width of the rectangle are both greater than the diameter of the cylinder body 1. A connecting shaft 14, a flip cover 15 and a fastening member are provided on the outer side of the side wall of the protruding member 18 for closing the through slot. The connecting shaft 14 is provided on the lower side of the through slot, and the flip cover 15 is rotatably connected to the connecting shaft 14, and the through slot is opened and closed by flipping. The fastening member includes a first fastening portion 161 and a second fastening portion 162. The first fastening portion 161 is provided on the outer side of the side wall of the protruding member 18 of the cylinder body 1, and the second fastening portion 162 is provided on the flip cover 15. The second fastening portion 162 is used to fasten with the first fastening portion 161 to close the through slot or release the fastening to open the through slot. One of the first fastening portion 161 and the second fastening portion 162 is fixedly arranged, and the other is rotatably arranged, and the flip cover 15 is fixed by mutual fastening. The fastening member can be a buckle, a snap lock or other structures that can realize the fixing and release of the flip cover 15, and a suitable structure can be selected according to needs. During dust removal, the filter plate is circumferentially closed by the flip cover 15 to prevent the filter plate and the sand particles thereon from falling out of the cylinder body 1; after dust removal, the flip cover 15 is opened to facilitate the removal of the filter plate and the sand particles. It can be understood that limiting blocks (not shown in the figure) are provided on the inner sides of the protruding member 18 and the flip cover 15. There are a plurality of limiting blocks, and the side surfaces of the limiting blocks abut against the surrounding plate 25. Thus, when the filter plate and the surrounding plate 25 rotate, the horizontal displacement of the first filtering portion 211 and the second filtering portion 212 is restricted, so that the first filtering portion 211 and the second filtering portion 212 can only be separated from the rotating shaft member 22 when the flip cover 15 is opened.
[0060] In this embodiment, the parameters such as the dimensions and shapes of the various parts of the device can be adjusted according to needs, as long as the corresponding functions can be realized.
[0061] The implementation principle of a device for dust removal of coated sand in an embodiment of this application is as follows: Sand grains enter the cylinder body 1 from the feed inlet 11. After an appropriate amount of sand grains are placed, the cover 12 is covered. At this time, the sand grains are located on the filter plate. The driving member 41 pushes the piston member 42 to move upward. The moving speed of the piston member 42 can be adjusted as needed. Air is input through the ventilation port below the piston portion 421. The air pressure above the piston portion 421 increases. On the one hand, it makes the air pass through the filter holes to blow the dust in the sand grains to fly above the filter plate. On the other hand, the air above the filter plate is pushed to open the first baffle 34 and discharged through the first air outlet 31. The dust is transported through the dust collection pipeline 39 and collected into the dust collection member 37. At the same time, due to the linear movement of the piston member 42, it drives the filter plate to rotate, enabling the sand grains to move, which helps to blow out the dust and optimize the dust removal effect. Since part of the dust in the sand grains will fall onto the piston portion 421 through the filter holes, when the piston portion 421 moves downward, the suction member 36 opens the second baffle 38, and can suck out the dust on the upper surface of the piston portion 421 and transport it to the dust collection member 37 through the dust collection pipeline 39, which helps to optimize the dust removal effect inside the cylinder body 1. After dust removal, the flip cover 15 is opened, and the first filter portion 211, the second filter portion 212 and the sand grains carried thereon are removed from the cylinder body 1, that is, the dust removal of the sand grains is completed once.
[0062] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.
Claims
1. A device for dedusting coated sand, characterized in that, Comprising: A cylinder body (1) is provided with a feeding port (11) thereon, and a cover (12) is provided at the feeding port (11); A filtering mechanism (2), including a filter plate, the filter plate is arranged inside the cylinder body (1), and the filter plate is arranged below the feeding port (11); A dust removal mechanism, including a first air outlet (31), a first one-way valve (32) and a ventilation port. The first air outlet (31) and the first one-way valve (32) are both arranged on the side wall of the cylinder body (1), the first air outlet (31) and the first one-way valve (32) are both arranged above the filtering mechanism (2), the first one-way valve (32) allows external air to enter the cylinder body (1), the ventilation port is arranged at the lower end of the cylinder body (1), a first baffle (34) is arranged at the first air outlet (31), one end of the first baffle (34) is rotatably connected to the cylinder body (1), and the other end of the first baffle (34) is lapped on the outer side of the side wall of the cylinder body (1), so that the air in the cylinder body (1) is discharged from the first air outlet (31) to the outside of the cylinder body (1); A moving mechanism (4), including a driving member (41) and a piston member (42), the driving member (41) is arranged below the cylinder body (1), the piston member (42) is arranged inside the cylinder body (1), the piston member (42) is arranged below the filter plate, the circumference of the piston member (42) is slidably connected to the inner side of the side wall of the cylinder body (1), the driving member (41) is connected to the piston member (42), and the driving member (41) drives the piston member (42) to move in a direction close to or away from the filter plate.
2. The device for removing dust from coated sand according to claim 1, wherein: The filtering mechanism (2) further includes a rotating shaft member (22) and a spiral member (23), the upper end of the rotating shaft member (22) is rotatably connected to the upper end of the cylinder body (1), the other end of the rotating shaft member (22) is clamped to the filter plate, the upper end of the spiral member (23) is connected to the rotating shaft member (22), and the other end of the spiral member (23) is spirally connected to the piston member (42).
3. The device for dedusting coated sand according to claim 2, wherein: The filter plate includes a first filtering part (211) and a second filtering part (212), a protruding part (221) is arranged at the lower end of the rotating shaft member (22), and concave parts (24) are arranged on both the first filtering part (211) and the second filtering part (212), and the concave parts (24) are clamped to the protruding part (221).
4. The device for dedusting coated sand according to claim 2, characterized in that: The piston member (42) includes a piston part (421) and a connecting part (422), the circumference of the piston part (421) is slidably connected to the inner side of the side wall of the cylinder body (1), one end of the connecting part (422) is connected to the piston part (421), the other end of the connecting part (422) is connected to the driving member (41), a groove (423) is arranged inside the connecting part (422), and the groove (423) cooperates with the spiral member (23), so that the vertical movement of the piston member (42) drives the spiral member (23) to rotate.
5. The device for dust removal of coated sand according to claim 4, wherein: The dust removal mechanism further includes a second one-way valve (33), a second air outlet (35), and a suction member (36). The second one-way valve (33) is disposed in the ventilation port to allow external air to enter the cylinder body (1). The second air outlet (35) is disposed on the side wall of the cylinder body (1), and the second air outlet (35) is connected to the suction member (36). The piston portion (421) vertically moves above or below the second air outlet (35).
6. The device for dedusting coated sand according to claim 5, wherein: A second baffle (38) is provided at the second air outlet (35). The upper end of the second baffle (38) is rotatably connected to the cylinder body (1), and the lower end of the second baffle (38) is lapped on the outer side of the side wall of the cylinder body (1).
7. The device for dedusting coated sand according to claim 5, wherein: Both the first air outlet (31) and the suction member (36) are communicated with a dust collecting member (37), and the dust collecting member (37) is disposed on one side of the cylinder body (1).
8. The device for dedusting coated sand according to claim 1, characterized in that: A through groove is formed in the cylinder body (1), and the height of the through groove is greater than the height of the filter plate. The through groove is used for removing the filter plate.
9. The device for dedusting coated sand according to claim 8, characterized in that: A connecting shaft (14), a flip cover (15), and a fastening member are provided on the outer side of the side wall of the cylinder body (1). The connecting shaft (14) is disposed below the through groove, the flip cover (15) is rotatably connected to the connecting shaft (14), the fastening member includes a first fastening portion (161) and a second fastening portion (162), the first fastening portion (161) is disposed on the outer side of the side wall of the cylinder body (1), and the second fastening portion (162) is disposed on the flip cover (15). The second fastening portion (162) is used for fastening or releasing the fastening with the first fastening portion (161).
10. The device for dust removal of coated sand according to claim 1, characterized in that: A supporting member (13) is provided on the inner side of the side wall of the cylinder body (1), and the supporting member (13) abuts against the lower side of the filter plate.