A sandblasting abrasive recycling and purification device

Abstract

This utility model provides a sandblasting abrasive recycling and purification device, comprising: a lower processing box, an upper processing box fixedly connected to the bottom of the lower processing box, a feed pipe connected to the top of the upper processing box, and a coarse material tray, a metal shavings tray, a fine material tray, and a crushed material tray slidably mounted on the lower processing box; a screening section installed inside the upper processing box; a material equalization section fixed to the bottom of the lower processing box and connected to the screening section; and a purification section installed inside the lower processing box and located below the material equalization section. This sandblasting abrasive recycling and purification device integrates a screening section, a material equalization section, a purification section, and an air separation section, realizing multi-stage sorting of abrasives, removal of metal impurities, and dust purification, ensuring the purification purity of the abrasives, facilitating recycling and use, and preventing dust generated during the recycling process from polluting the working environment due to dispersion.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting machine technology, and more specifically, to a sandblasting abrasive recycling and purification device. Background Technology

[0002] In the field of sandblasting, abrasives (such as steel shot, glass beads, alumina, etc.) are blasted at high speed onto the surface of a workpiece for cleaning, rust removal, or surface strengthening. However, during the sandblasting process, the abrasives can break due to impact and friction, and become mixed with impurities such as metal shavings and dust. At this point, workers need to clean and screen them using a recycling device.

[0003] Conventional vibrating screens separate only by particle size, which cannot effectively remove metal impurities or light fragments, resulting in insufficient purity of recycled abrasives and affecting the reuse effect. Furthermore, the dust generated during the screening process is easy to disperse, polluting the working environment and endangering the health of operators. Moreover, most existing dust removal equipment is external, which takes up space and consumes a lot of energy. Utility Model Content

[0004] The purpose of this invention is to provide a sandblasting abrasive recycling and purification device to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides a sandblasting abrasive recycling and purification device, comprising: a lower processing box, an upper processing box fixedly connected to the bottom of the lower processing box, a feed pipe connected to the top of the upper processing box, and a coarse material drawer, a metal shavings drawer, a fine material drawer and a scrap material drawer slidably mounted on the lower processing box.

[0006] A screening section, which is installed inside the upper processing box;

[0007] The material equalization section is fixed to the bottom of the lower processing box and is connected to the screening section.

[0008] A waste removal unit is installed inside the lower processing box and located below the material homogenizing unit;

[0009] An air classifier is installed on the lower processing box and connected to the upper processing box, wherein...

[0010] The air separator is driven to collect the dust that flies up when the abrasive is vibrated and screened by the screening section and the air in the upper treatment box, and blow the filtered air toward the abrasive after it has been cleaned by the impurity removal section.

[0011] Furthermore, the air separation unit is installed in the air collection box inside the lower processing box; a plurality of negative pressure fans are installed at equal intervals on the air collection box; a filter box is fixed to the side wall of the lower processing box; a plurality of air supply pipes are used to connect the air collection box and the filter box; an assembly frame is slidably assembled in the filter box; two filter screens are installed in the assembly frame; a dust collection drawer is slidably assembled in the filter box; a dust collection cover is connected to the top of the upper processing box; and a conveying pipe is connected at one end to the dust collection cover and at the other end to the filter box.

[0012] The two filters have different mesh counts, with the upper filter having a larger mesh count than the lower filter.

[0013] Furthermore, the screening section includes several limiting platforms fixed inside the upper processing box; several control consoles disposed above the several limiting platforms; several limiting rods, one end of which is fixedly connected to the several control consoles and the other end of which passes through the several limiting platforms; several return springs movably sleeved outside the several limiting rods; a screening frame fixed to the several control consoles; a screening screen installed inside the screening frame and inclined; a conveying hopper connected to the bottom of the screening frame and extending into the lower processing box; and a miscellaneous material pipe, one end of which is connected to the screening frame and the other end of which passes through the upper processing box and the lower processing box and extends above the coarse material tray.

[0014] The two ends of the reset spring are fixedly connected to the limiting platform and the control console, respectively.

[0015] Furthermore, the screening unit also includes two control rods symmetrically rotatably mounted inside the upper processing box; a plurality of cams symmetrically fixed on the two control rods; two first transmission gears respectively fixedly connected to the two control rods; a first transmission toothed belt meshing with the two first transmission gears; and a first motor mounted on the outer wall of the upper processing box.

[0016] The output end of the first motor is fixedly connected to one of the control levers.

[0017] Furthermore, the material distribution unit includes a material distribution frame fixed to the top of the lower processing box and movably sleeved on the lower end of the conveying hopper, an upper drive rod rotatably installed in the lower processing box; a material distribution roller fixedly sleeved on the outside of the upper drive rod and rotatably installed in the material distribution frame; and a plurality of material distribution grooves arranged in a ring array on the material distribution roller.

[0018] The fine material drawer is located directly below the material distribution frame.

[0019] Furthermore, the impurity removal unit includes a lower drive rod rotatably installed inside the lower processing box; a magnetic rod fixedly sleeved outside the lower drive rod and located below the material distribution frame; and a scraper fixed inside the lower processing box and abutting against the magnetic rod.

[0020] The scraper is positioned directly above the metal scrap drawer.

[0021] Furthermore, a second transmission gear is fixedly connected to one end of both the upper drive rod and the lower drive rod, and a second transmission toothed belt is meshed on the two second transmission gears. A second motor is installed inside the lower processing box, and the output end of the second motor is fixedly connected to the other end of the lower drive rod.

[0022] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0023] This sandblasting abrasive recycling and purification device achieves three-stage linkage of vibrating screening, magnetic separation, and air separation through the cooperation of screening, impurity removal, and air separation sections. The drawer-type design of coarse material tray, metal shavings tray, fine material tray, and crushed material tray enables the abrasive to be classified and collected according to particle size, metal impurities, and slag, achieving efficient classification and recycling of abrasive, ensuring the recovery rate and quality of abrasive, facilitating direct use after purification, and ensuring the recycling effect of abrasive.

[0024] This sandblasting abrasive recycling and purification device uses an air separator with a dust collection hood and several negative pressure fans to forcefully extract dust emitted during the vibrating screening of the abrasive. A double-layer filter ensures effective air purification, preventing dust from easily escaping, polluting the working environment, and harming the health of operators. It also extracts metal dust from the abrasive, preventing it from adhering to the magnetic rods during subsequent magnetic separation, which would otherwise be difficult to clean by the scraper and affect the magnetic separation effect. Simultaneously, the filtered air is re-blown onto the magnetically separated abrasive, forming a closed-loop cycle. This prevents dust overflow and utilizes airflow to assist in separation, blowing away lightweight fragments, making it highly practical. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 A perspective view of the present invention is shown;

[0027] Figure 2 A partially disassembled perspective view of this utility model is shown;

[0028] Figure 3 A partial side view of the present invention is shown;

[0029] Figure 4 A partial front view of the present invention is shown;

[0030] Figure 5 This invention provides a partially cross-sectional perspective view. Figure 1 ;

[0031] Figure 6 This invention provides a partially cross-sectional perspective view. Figure 2 .

[0032] In the picture

[0033] 1. Lower processing box; 2. Upper processing box; 3. Feed pipe; 4. Coarse material tray; 5. Metal scrap tray; 6. Fine material tray; 7. Crushed material tray; 8. Screening section; 9. Material equalization section; 10. Impurity removal section; 11. Air separation section; 12. Air collection box; 13. Negative pressure fan; 14. Filter box; 15. Air supply pipe; 16. Assembly frame; 17. Filter screen; 18. Dust collection tray; 19. Dust collection hood; 20. Conveying pipe; 21. Limiting platform; 22. Control console; 23. Limiting rod ; 24. Return spring; 25. Screening frame; 26. Screening screen; 27. Feed hopper; 28. Miscellaneous material pipe; 29. ​​Control rod; 30. Cam; 31. First transmission gear; 32. First transmission toothed belt; 33. First motor; 34. Material distribution frame; 35. Upper drive rod; 36. Material distribution roller; 37. Material distribution trough; 38. Lower drive rod; 39. Magnetic rod; 40. Scraper; 41. Second transmission gear; 42. Second transmission toothed belt; 43. Second motor. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0035] like Figure 1-6 As shown, a sandblasting abrasive recycling and purification device includes: a lower processing box 1, an upper processing box 2 fixedly connected to the bottom of the lower processing box 1, a feed pipe 3 connected to the top of the upper processing box 2, and a coarse material tray 4, a metal shavings tray 5, a fine material tray 6 and a scrap material tray 7 slidably mounted on the lower processing box 1.

[0036] Screening section 8, which is installed inside the upper processing box 2;

[0037] The material equalization section 9 is fixed to the bottom of the lower processing box 1 and is connected to the screening section 8.

[0038] Impurity removal unit 10 is installed inside the lower processing box 1 and is located below the material equalization unit 9;

[0039] Air separation unit 11, the air separation unit 11 includes a part installed on the lower processing box 1 and connected to the upper processing box 2, wherein

[0040] The air separator 11 is driven to collect the dust that flies up when the abrasive is vibrated and screened by the screening section 8 and the air in the upper treatment box 2, and blow the filtered air toward the abrasive after it has been cleaned by the impurity removal section 10.

[0041] During use, the abrasive enters the upper processing box 2 through the feed pipe 3. After being vibrated and screened by the screening section 8, the coarse material falls into the coarse material drawer 4 through the impurity pipe 28. The qualified abrasive enters the lower processing box 1 through the conveying hopper 27, and then passes through the uniform dispersion section 9, the impurity removal section 10 for magnetic separation to remove metal chips, and the air separation section 11 for air separation. Finally, the fine material, metal chips, and fragments fall into the fine material drawer 6, the metal chip drawer 5, and the fragment drawer 7, respectively. Through the three-stage linkage of vibrating screening, magnetic separation, and air separation, the abrasive is efficiently classified and recycled, ensuring the abrasive recovery rate and the removal rate of metal impurities, guaranteeing the purity of the recycled abrasive, and allowing the processed abrasive to be directly recycled and used. The four-drawer design facilitates classification and cleaning and avoids cross-contamination. The air separation section 11 extracts the dusty air generated during screening, filters it, and blows the clean air towards the abrasive. The auxiliary sorting prevents dust adhering to the abrasive from escaping during recycling, thus avoiding dust pollution of the working environment and harm to the health of operators. Simultaneously, it allows for the pre-collection of metal dust from the abrasive, preventing metal dust from adhering to the magnetic rod 39 during subsequent magnetic separation, which would otherwise be unable to be effectively cleaned by the scraper 40 and affect the magnetic separation effect. Furthermore, the clean air circulating after dust removal and filtration can be blown onto the abrasive passing through the impurity removal section 10 for auxiliary sorting, allowing fragments and non-magnetic lightweight impurities to be removed, improving the quality of abrasive recycling. The material equalization section 9 enables quantitative and intermittent feeding, effectively preventing excessive abrasive from entering the impurity removal section 10 and the air separation section 11 at once, thus affecting the purification effect of the abrasive.

[0042] Optionally, the air separation unit 11 includes an air collection box 12 installed in the lower processing box 1; a plurality of negative pressure fans 13 installed at equal intervals on the air collection box 12; a filter box 14 fixed to the side wall of the lower processing box 1; a plurality of air supply pipes 15 for connecting the air collection box 12 and the filter box 14; an assembly frame 16 slidably mounted in the filter box 14; two filter screens 17 installed in the assembly frame 16; a dust collection drawer 18 slidably mounted in the filter box 14; a dust collection cover 19 connected to the top of the upper processing box 2; and a delivery pipe 20 connected at one end to the dust collection cover 19 and at the other end to the filter box 14.

[0043] The two filter screens 17 have different mesh counts, with the upper filter screen 17 having a larger mesh count than the lower filter screen 17. During operation, several negative pressure fans 13 are activated. Dust raised by the vibrating screen of the screening section 8 in the upper processing box 2, along with air, enters the conveying pipe 20 through the dust collection hood 19 and is then conveyed to the filter box 14. The dust is intercepted by the double-layer filter screens 17 and falls into the dust collection drawer 18. Clean air returns to the air collection box 12 through the air supply pipe 15 and is then discharged. The filtered air can be recycled for abrasive air classification. Abrasives cleaned of magnetic metal impurities by the impurity removal section 10 are air-classified, resulting in qualified abrasives. The raw material falls into the fine material tray 6, while the broken and lightweight abrasive falls into the crushed material tray 7, improving the purity of the abrasive recycling. The double-layer filter screen 17 design significantly improves the dust capture rate, and since the metal dust in the abrasive is also collected, it avoids the problem of fine metal powder adsorbing on the magnetic rod 39 and being difficult to clean during the subsequent cleaning of the impurity removal section 10. The sliding assembly rack 16 and the dust collection tray 18 facilitate quick cleaning or replacement of the filter screen, and the air circulation, dust removal and air separation work together to reduce energy consumption. The negative pressure dust collection, graded filtration and air circulation work together to achieve efficient dust removal and auxiliary sorting, which is environmentally friendly, energy-saving and easy to maintain.

[0044] Optionally, the screening section 8 includes a plurality of limiting platforms 21 fixed inside the upper processing box 2; a plurality of control consoles 22 disposed above the plurality of limiting platforms 21; a plurality of limiting rods 23, one end of which is fixedly connected to the plurality of control consoles 22 and the other end of which passes through the plurality of limiting platforms 21; a plurality of return springs 24 movably sleeved outside the plurality of limiting rods 23; a screening frame 25 fixed to the plurality of control consoles 22; a screening screen 26 installed inside the screening frame 25 and inclined; a conveying hopper 27 connected to the bottom of the screening frame 25 and extending into the lower processing box 1; and a waste pipe 28 connected to the screening frame 25 and the other end of which passes through the upper processing box 2 and the lower processing box 1 and extends above the coarse material tray 4.

[0045] The two ends of the reset spring 24 are fixedly connected to the limiting platform 21 and the control platform 22, respectively.

[0046] Optionally, the screening section 8 further includes two control rods 29 symmetrically rotatably mounted inside the upper processing box 2; a plurality of cams 30 symmetrically fixed on the two control rods 29; two first transmission gears 31 respectively fixedly connected to the two control rods 29; a first transmission toothed belt 32 meshing with the two first transmission gears 31; and a first motor 33 mounted on the outer wall of the upper processing box 2.

[0047] The output end of the first motor 33 is fixedly connected to one of the control rods 29. In use, the first motor 33 drives one of the control rods 29 to rotate, and under the meshing transmission of the first transmission belt 32 and the two first transmission gears 31, it drives the other control rod 29 to rotate synchronously. This causes several cams 30 to periodically press the screening frame 25 upward, and with the help of the return spring 24, high-frequency vibration is achieved. At this time, the abrasive falling on the screening screen 26 through the feed pipe 3 is vibrated and screened. Because the screening screen 26 is set at an inclination, the qualified material falls through the feed hopper 27, and the coarse material and impurities are discharged into the coarse material tray 4 through the waste material pipe 28. The inclination of the screening screen 26 and the vibration effectively reduce the clogging of the mesh. During the vibration of the abrasive, various dust particles adhering to it are also lifted up, which facilitates the processing of the air classifier 11.

[0048] Optionally, the material distribution section 9 includes a material distribution frame 34 fixed to the top of the lower processing box 1 and movably sleeved on the lower end of the conveying hopper 27, an upper drive rod 35 rotatably installed in the lower processing box 1; a material distribution roller 36 fixedly sleeved on the outside of the upper drive rod 35 and rotatably installed in the material distribution frame 34; and a plurality of material distribution grooves 37 arranged in a ring array on the material distribution roller 36.

[0049] The fine material drawer 6 is located directly below the distribution frame 34. After the abrasive material screened by the screening section 8 falls into the distribution frame 34, the distribution roller 36 rotates with the upper drive rod 35. The distribution groove 37 on its surface evenly disperses the abrasive material into the fine material drawer 6. Through uniform and intermittent feeding, abrasive material accumulation is effectively avoided, ensuring the subsequent magnetic separation and air separation effects. The overall structure is compact, and the rotational cooperation between the distribution roller 36 and the distribution frame 34 reduces the risk of material jamming.

[0050] Optionally, the impurity removal unit 10 includes a lower drive rod 38 rotatably installed in the lower processing box 1; a magnetic rod 39 fixedly sleeved outside the lower drive rod 38 and located below the material distribution frame 34; and a scraper 40 fixed in the lower processing box 1 and abutting against the magnetic rod 39.

[0051] The scraper 40 is located directly above the metal scrap drawer 5. In use, the lower drive rod 38 drives the magnetic rod 39 to rotate, so that the magnetic impurities in the abrasive in the equalization section 9 can fall onto the magnetic rod 39 and be attracted by the rotation. When the magnetic impurities attracted on the magnetic rod 39 rotate to the scraper 40, they are scraped off by the scraper 40 and fall into the metal scrap drawer 5. The rotating magnetic rod 39 has a significantly higher adsorption efficiency than the fixed magnetic strip, and the scraper 40 is designed to avoid the need for manual cleaning of the magnetic rod 39.

[0052] Optionally, a second transmission gear 41 is fixedly connected to one end of both the upper drive rod 35 and the lower drive rod 38. A second transmission belt 42 is meshed on the two second transmission gears 41. A second motor 43 is installed in the lower processing box 1. The output end of the second motor 43 is fixedly connected to the other end of the lower drive rod 38. In use, the second motor 43 is driven to work, controlling the lower drive rod 38 to rotate. Then, under the meshing transmission of the second transmission belt 42 and the two second transmission gears 41, the upper drive rod 35 is driven to rotate synchronously, so as to control the impurity removal section 10 and the material equalization section 9 to work synchronously. A single motor drives two mechanisms, reducing energy consumption.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sandblasting abrasive recycling and purification device, characterized in that, include: The lower processing box (1) is fixedly connected to the bottom of the lower processing box (1) and the upper processing box (2) is connected to the top of the upper processing box (2) via a feed pipe (3). The lower processing box (1) is slidably equipped with a coarse material drawer (4), a metal shavings drawer (5), a fine material drawer (6) and a scrap material drawer (7). Screening section (8), which is installed inside the upper processing box (2); The material equalization section (9) is fixed to the bottom of the lower processing box (1) and is connected to the screening section (8); Impurity removal section (10) is installed inside the lower processing box (1) and located below the material equalization section (9); An air separator (11) is installed on the lower processing box (1) and connected to the upper processing box (2), wherein... The air separator (11) is driven to collect the dust that flies up when the abrasive is vibrated and screened by the screening section (8) and the air in the upper processing box (2), and blow the filtered air toward the abrasive after it has been cleaned by the impurity removal section (10).

2. The abrasive recycling and purification device for sandblasting as described in claim 1, characterized in that, The air separation unit (11) includes an air collection box (12) installed in the lower processing box (1); a plurality of negative pressure fans (13) installed at equal intervals on the air collection box (12); a filter box (14) fixed to the side wall of the lower processing box (1); a plurality of air supply pipes (15) for connecting the air collection box (12) and the filter box (14); an assembly frame (16) slidably mounted in the filter box (14); two filter screens (17) installed in the assembly frame (16); a dust collection tray (18) slidably mounted in the filter box (14); a dust collection cover (19) connected to the top of the upper processing box (2); and a delivery pipe (20) connected at one end to the dust collection cover (19) and at the other end to the filter box (14). The two filters (17) have different mesh counts, and the upper filter (17) has a larger mesh count than the lower filter (17).

3. The abrasive recycling and purification device for sandblasting as described in claim 2, characterized in that, The screening section (8) includes several limiting platforms (21) fixed inside the upper processing box (2); several control consoles (22) arranged above the several limiting platforms (21); several limiting rods (23) with one end fixedly connected to the several control consoles (22) and the other end passing through the several limiting platforms (21); several return springs (24) movably sleeved outside the several limiting rods (23); a screening frame (25) fixed to the several control consoles (22); a screening screen (26) installed inside the screening frame (25) and inclined; a conveying hopper (27) connected to the bottom of the screening frame (25) and extending to the lower processing box (1); and a miscellaneous material pipe (28) with one end connected to the screening frame (25), the other end passing through the upper processing box (2) and the lower processing box (1) and extending to the top of the coarse material tray (4). The two ends of the reset spring (24) are fixedly connected to the limiting platform (21) and the control platform (22), respectively.

4. The abrasive recycling and purification device for sandblasting as described in claim 3, characterized in that, The screening section (8) also includes two control rods (29) symmetrically rotatably mounted inside the upper processing box (2); a plurality of cams (30) symmetrically fixed on the two control rods (29); two first transmission gears (31) respectively fixedly connected to the two control rods (29); a first transmission toothed belt (32) meshing with the two first transmission gears (31); and a first motor (33) mounted on the outer wall of the upper processing box (2). The output end of the first motor (33) is fixedly connected to one of the control levers (29).

5. The abrasive recycling and purification device for sandblasting as described in claim 3, characterized in that, The material distribution unit (9) includes a material distribution frame (34) fixed inside the top of the lower processing box (1) and movably sleeved on the lower end of the conveying hopper (27), an upper drive rod (35) rotatably installed inside the lower processing box (1); a material distribution roller (36) fixedly sleeved on the outside of the upper drive rod (35) and rotatably installed inside the material distribution frame (34); and a plurality of material distribution grooves (37) arranged in a ring array on the material distribution roller (36). The fine material drawer (6) is located directly below the material distribution frame (34).

6. The abrasive recycling and purification device for sandblasting as described in claim 5, characterized in that, The impurity removal unit (10) includes a lower drive rod (38) rotatably installed in the lower processing box (1); a magnetic rod (39) fixedly sleeved outside the lower drive rod (38) and located below the material distribution frame (34); and a scraper (40) fixed inside the lower processing box (1) and abutting against the magnetic rod (39). The scraper (40) is positioned directly above the metal scrap drawer (5).

7. The abrasive recycling and purification device for sandblasting as described in claim 6, characterized in that, The upper drive rod (35) and the lower drive rod (38) are both fixedly connected to one end of a second transmission gear (41). The two second transmission gears (41) are fitted with a second transmission toothed belt (42). The lower processing box (1) is equipped with a second motor (43). The output end of the second motor (43) is fixedly connected to the other end of the lower drive rod (38).

Images