Sand blasting room capable of recycling chippings
By introducing an abrasive separation mechanism and a self-cleaning mechanism into the sandblasting room, the problems of steel structure damage and excessive dust concentration caused by abrasive debris have been solved. This has enabled the separation and storage of abrasive and debris, as well as the self-cleaning function of the equipment, thereby improving the sandblasting effect and operational safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-03
AI Technical Summary
When the abrasive is reused in existing sandblasting booths, the irregular shape of the debris causes scratches or pits on the steel structure surface, reducing fatigue resistance. At the same time, after long-term use, the filter consumables become clogged, resulting in excessive dust concentration that blurs vision.
A sandblasting chamber for recycling debris was designed. It uses a motor, a toothed disc, a rack and pinion, and a metal mesh plate to separate the abrasive particles, achieving the separation and storage of debris and abrasive. The chamber is automatically cleaned by a micro motor and a transmission belt cleaning plate through a self-cleaning mechanism, which prevents debris from affecting the quality of the steel structure and clogging the filter consumables.
It achieves effective separation of abrasive and debris, avoids damage to the steel structure surface, extends the service life of the equipment, and keeps the operating environment clean, preventing excessive dust concentration from affecting visibility.
Smart Images

Figure CN224074138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure surface treatment technology, specifically a sandblasting room for recycling debris. Background Technology
[0002] Sandblasting is an important process for improving the surface quality of steel structures and removing rust and old coatings. It is widely used in the manufacturing and construction industries. Sandblasting booths are required when treating the surface of steel structures. Sandblasting booths allow operators to work in a closed environment, wearing protective clothing and helmets to prevent personnel from being impacted by abrasives. The equipment uses high-speed abrasives to spray onto the surface of the workpiece to achieve the purpose of cleaning and roughening, thereby enhancing the adhesion of the coating.
[0003] When abrasives are reused, they are prone to becoming mixed with debris. Due to the irregular shape of the debris, scratches or pits are generated on the surface of steel structures when the abrasives are used for sandblasting, which reduces the fatigue resistance of the steel structures. Therefore, there is an urgent need to develop a sandblasting room that can recycle debris to solve these practical problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a sandblasting chamber for recycling debris, thus solving the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides a sandblasting chamber for recycling debris through the following technical solution: a box body, a shell fixedly installed at the bottom of the box body, and a perforated plate fixedly installed at the top of the shell body.
[0006] It also includes an abrasive separation mechanism, which includes a transfer box located at the bottom of the housing. A collection hopper is fixedly installed inside the transfer box. A first rotary joint pipe is rotatably installed at the bottom of the collection hopper. A motor is fixedly installed on one side of the housing. A gear plate is fixedly installed at the output end of the motor. A rack is meshed on one side of the gear plate. One end of the rack extends into the transfer box and is fixedly connected to a metal mesh plate. Two sets of storage boxes are fixedly installed below the housing, and the storage boxes are located below the first rotary joint pipe.
[0007] Preferably, a fixing block is fixedly installed on one side of the first rotary joint pipe, and a locking element is threaded on the top of the fixing block.
[0008] Preferably, a dust collector is fixedly installed on the back of the housing, a partition is fixedly installed on one side inside the dust collector, and a first negative pressure pump is fixedly installed on one side of the partition. A set of hollow plates is fixedly installed at one end of the delivery pipe of the first negative pressure pump, and another set of hollow plates is connected to one side of the top of the dust collector through a pipe fitting.
[0009] Preferably, a hollow seat extending into the interior of the box is fixedly installed on one side of the hollow plate, and multiple sets of baffles are installed at equal intervals inside the hollow seat.
[0010] Preferably, a self-cleaning mechanism is rotatably installed inside the dust collector. The self-cleaning mechanism includes a hollow shaft inside the dust collector, a cleaning plate fixedly installed at one end of the hollow shaft, a collection box fixedly installed on one side of the back of the box, and a second rotary joint pipe rotatably installed on the top of the collection box. A filter plate is fixedly installed on one side inside the collection box, and a second negative pressure pump is fixedly installed on one side of the top of the collection box. A pipe on one side of the second negative pressure pump is connected to the top of the collection box. A micro motor is fixedly installed at the bottom of the dust collector, and a transmission belt that is sleeved and connected to the outer side of the hollow shaft is installed at the output end of the micro motor.
[0011] Preferably, the cleaning plate has a conveying groove inside, and one end of the second rotary joint tube extends to the hollow shaft and is connected to the conveying groove.
[0012] Preferably, the inner side of the box is coated with an epoxy resin-based wear-resistant coating, and a door is installed on one side of the box via a hinge.
[0013] This invention provides a sandblasting booth for recycling debris. Compared with the prior art, it has the following advantages.
[0014] 1. The system uses a motor, gear disc, and rack to extend a metal mesh plate into the transfer box. The metal mesh plate intercepts grinding impurities mixed in with the abrasive, allowing the abrasive to be transported through the first rotary joint pipe to the storage box. Then, the first rotary joint pipe is rotated to the top of another set of storage boxes. The motor, gear disc, and rack work together to move the metal mesh plate away from the transfer box, allowing the filtered impurities and larger particles in the abrasive to be transported to the other set of storage boxes for storage and collection. This achieves the function of separating and storing abrasive and debris separately, avoiding the problem of scratches or pits on the steel structure surface caused by the irregular shape of debris mixed in with the abrasive when recycling abrasive mixed with debris, which reduces the fatigue resistance of the steel structure.
[0015] 2. The micro motor drives the transmission belt to move, which in turn drives the hollow shaft to rotate. This, in turn, causes the cleaning plate to clean the filter media inside the dust collection box. The second negative pressure pump, collection box, and second rotary joint pipe work together to suck up the dust and impurities generated during the cleaning process and transport them to the collection box for storage. This achieves the self-cleaning function of the device and avoids the problem of filter media clogging and reduced airflow of filtered dust after long-term use, which could lead to excessive dust concentration inside the device and obstruct the operator's vision. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention;
[0017] Figure 2 This is a schematic diagram of the appearance of the present utility model;
[0018] Figure 3 This is a partial structural diagram of the back of the present invention;
[0019] Figure 4 This is a partial structural diagram of the abrasive separation mechanism of this utility model;
[0020] Figure 5 This is a partial structural diagram of the metal mesh plate of this utility model;
[0021] Figure 6 This is a partial structural diagram of the dust collector box of this utility model;
[0022] Figure 7 This is a schematic diagram showing the installation position of the self-cleaning mechanism of this utility model;
[0023] Figure 8 This is a partial structural diagram of the hollow shaft of this utility model;
[0024] Figure 9 This is a partial structural diagram of the collection box of this utility model.
[0025] In the diagram: 1. Box body; 2. Shell; 201. Perforated plate; 3. Abrasive separation mechanism; 301. Transfer box; 302. Collection hopper; 303. First rotary joint pipe; 304. Motor; 305. Gear plate; 306. Rack; 307. Metal mesh plate; 308. Storage box; 309. Locking element; 4. Hollow seat; 5. Dust collection box; 501. First negative pressure pump; 502. Hollow plate; 6. Self-cleaning mechanism; 601. Hollow shaft; 602. Cleaning plate; 603. Collection box; 604. Second rotary joint pipe; 605. Second negative pressure pump; 606. Micro motor; 607. Transmission belt; 7. Epoxy resin-based wear-resistant coating. Detailed Implementation
[0026] 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.
[0027] First implementation method:
[0028] refer to Figure 1-2 , Figure 4-5A sandblasting chamber for recycling debris includes a box 1, a shell 2 fixedly installed at the bottom inside the box 1, and a perforated plate 201 fixedly installed at the top inside the shell 2.
[0029] It also includes an abrasive separation mechanism 3, which includes a transfer box 301 located at the bottom inside the box 1. A collection hopper 302 is fixedly installed inside the transfer box 301. A first rotary joint pipe 303 is rotatably installed at the bottom of the collection hopper 302. A motor 304 is fixedly installed on one side of the box 1. A gear plate 305 is fixedly installed at the output end of the motor 304. A rack 306 is meshed on one side of the gear plate 305. One end of the rack 306 extends into the transfer box 301 and is fixedly installed with a metal mesh plate 307. Two sets of storage boxes 308 are fixedly installed below the box 1. The storage boxes 308 are located below the first rotary joint pipe 303.
[0030] A fixing block is fixedly installed on one side of the first rotary joint pipe 303, and a locking piece 309 is threaded on the top of the fixing block. A dust collector 5 is fixedly installed on the back of the box 1. A partition is fixedly installed on one side inside the dust collector 5, and a first negative pressure pump 501 is fixedly installed on one side of the partition. A set of hollow plates 502 is fixedly installed at one end of the conveying pipe of the first negative pressure pump 501, and another set of hollow plates 502 is connected to the top side of the dust collector 5 through a pipe fitting.
[0031] A hollow seat 4 extending into the interior of the box 1 is fixedly installed on one side of the hollow board 502, and multiple sets of baffles are installed equidistantly inside the hollow seat 4. The inner side of the box 1 is coated with epoxy resin-based wear-resistant coating 7, and a box door is installed on one side of the box 1 via a hinge.
[0032] After the operator opens the door to the inside of the chamber 1, the operator uses external equipment to sandblast the surface of the steel structure. The first negative pressure pump 501 draws in the air inside the dust collector 5, making the inside of the dust collector 5 a negative pressure state. The dust collector 5 in a negative pressure state can draw in and filter the dust generated by the sandblasting operation inside the chamber 1 through a set of hollow plates 502. Then, the filtered air is transported back into the chamber 1 for circulation through another set of hollow plates 502, thereby realizing the function of dust removal.
[0033] The shell 2 can collect the abrasive material, and the perforated plate 201 provides support for the user. The abrasive material enters the transfer box 301 through the perforated plate 201. The baffle can prevent larger debris and impurities from entering the hollow plate 502.
[0034] The motor 304 drives the gear disk 305 to rotate, and the rotating gear disk 305 drives the meshing rack 306 to move horizontally. The moving rack 306 can drive the metal mesh plate 307 to extend into the transfer box 301. The metal mesh plate 307 can intercept the grinding impurities mixed in the abrasive, so that the abrasive can be transported to the storage box 308 through the first rotary joint pipe 303.
[0035] After the operator rotates the first rotary joint pipe 303 to the top of another set of storage boxes 308, the motor 304 drives the toothed disc 305 to rotate in the opposite direction. The toothed disc 305, which rotates in the opposite direction, can drive the metal mesh plate 307 away from the interior of the transfer box 301 through the meshing rack 306. This allows the impurities and larger particles filtered in the abrasive to enter the first rotary joint pipe 303 and be transported to the interior of the other set of storage boxes 308 for storage and collection. This achieves the function of separating and storing the abrasive and the debris separately, avoiding the actual problem that when recycling abrasive mixed with debris, the irregular shape of the debris mixed in the abrasive causes scratches or pits on the surface of the steel structure, thereby reducing the fatigue resistance of the steel structure.
[0036] The first rotary joint tube 303 can be fixed in rotation position by the operator rotating the locking part 309, which facilitates the conveying of the separated abrasive and debris to the storage box 308 for separate storage. The epoxy resin-based wear-resistant coating 7 increases the wear resistance of the inner wall of the box 1 and extends the service life of the box 1.
[0037] Second implementation method:
[0038] After prolonged use, the filter media can easily become clogged with dust, resulting in a reduction in the airflow of the filter dust. This can lead to excessively high dust concentration inside the device, obscuring the operator's vision.
[0039] refer to Figure 3 , Figure 6-9 In the second embodiment of this utility model, a self-cleaning mechanism 6 is rotatably installed inside the dust collection box 5. The self-cleaning mechanism 6 includes a hollow shaft 601 disposed inside the dust collection box 5. A cleaning plate 602 is fixedly installed at one end of the hollow shaft 601. A collection box 603 is fixedly installed on one side of the back of the box body 1. A second rotary joint pipe 604 is rotatably installed on the top of the collection box 603. A filter plate is fixedly installed on one side inside the collection box 603. A second negative pressure pump 605 is fixedly installed on one side of the top of the collection box 603. A pipe on one side of the second negative pressure pump 605 is connected to the top of the collection box 603.
[0040] A micro motor 606 is fixedly installed at the bottom of the dust collection box 5, and a transmission belt 607 that is connected to the outer side of the hollow shaft 601 is sleeved at the output end of the micro motor 606. A conveying groove is opened inside the cleaning plate 602. One end of the second rotary joint pipe 604 extends to the hollow shaft 601 and is connected to the conveying groove.
[0041] The micro motor 606 is energized and drives the transmission belt 607 to move. The moving transmission belt 607 drives the hollow shaft 601 to rotate, which in turn drives the cleaning plate 602 to clean the filter material inside the dust collection box 5. The second negative pressure pump 605 operates to draw air from the collection box 603, so that the collection box 603 is in a negative pressure state. The collection box 603 in a negative pressure state can suck up the dust and impurities generated by the cleaning plate 602 through the second rotary joint pipe 604 and transport them into the collection box 603 for storage. This realizes the self-cleaning function of the device and avoids the problem of filter material clogging and reduced air volume of filtered dust after long-term use, which would lead to excessive dust concentration inside the device and obstruct the operator's vision.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sandblasting chamber for recycling debris, comprising a housing (1), wherein a shell (2) is fixedly installed at the bottom inside the housing (1), and a perforated plate (201) is fixedly installed at the top inside the shell (2), characterized in that: It also includes an abrasive separation mechanism (3), which includes a transfer box (301) located at the bottom inside the box (1). A collection hopper (302) is fixedly installed inside the transfer box (301). A first rotary joint pipe (303) is rotatably installed at the bottom of the collection hopper (302). A motor (304) is fixedly installed on one side of the box (1). A gear plate (305) is fixedly installed at the output end of the motor (304). A rack (306) is meshed on one side of the gear plate (305). One end of the rack (306) extends into the transfer box (301) and is fixedly installed with a metal mesh plate (307). Two sets of storage boxes (308) are fixedly installed below the box (1). The storage boxes (308) are located below the first rotary joint pipe (303).
2. The sandblasting chamber for recycling debris according to claim 1, characterized in that: A fixing block is fixedly installed on one side of the first rotary joint pipe (303), and a locking element (309) is threaded on the top of the fixing block.
3. A sandblasting chamber for recycling debris according to claim 1, characterized in that: A dust collector (5) is fixedly installed on the back of the box (1). A partition is fixedly installed on one side of the inside of the dust collector (5), and a first negative pressure pump (501) is fixedly installed on one side of the partition. A set of hollow plates (502) is fixedly installed at one end of the conveying pipe of the first negative pressure pump (501), and another set of hollow plates (502) is connected to the top side of the dust collector (5) through a pipe fitting.
4. A sandblasting chamber for recycling debris according to claim 3, characterized in that: A hollow seat (4) extending into the box body (1) is fixedly installed on one side of the hollow plate (502), and multiple sets of baffles are installed at equal intervals inside the hollow seat (4).
5. A sandblasting chamber for recycling debris according to claim 3, characterized in that: The dust collector (5) is rotatably installed with a self-cleaning mechanism (6). The self-cleaning mechanism (6) includes a hollow shaft (601) set inside the dust collector (5). A cleaning plate (602) is fixedly installed at one end of the hollow shaft (601). A collection box (603) is fixedly installed on one side of the back of the box (1). A second rotary joint pipe (604) is rotatably installed on the top of the collection box (603). A filter plate is fixedly installed on one side inside the collection box (603). A second negative pressure pump (605) is fixedly installed on one side of the top of the collection box (603). A pipe on one side of the second negative pressure pump (605) is connected to the top of the collection box (603). A micro motor (606) is fixedly installed at the bottom of the dust collector (5). A transmission belt (607) is sleeved and connected to the outside of the hollow shaft (601) by the output end of the micro motor (606).
6. A sandblasting chamber for recycling debris according to claim 5, characterized in that: The cleaning plate (602) has a conveying groove inside, and one end of the second rotary joint pipe (604) extends to the hollow shaft (601) and is connected to the conveying groove.
7. A sandblasting chamber for recycling debris according to claim 1, characterized in that: The inner side of the box (1) is coated with epoxy resin-based wear-resistant coating (7), and a door is installed on one side of the box (1) via a hinge.