A sandblasting abrasive delivery system

Abstract

The utility model discloses a sand blasting abrasive conveying system, including sand blasting cabinet, the rear of sand blasting cabinet is provided with support frame and dust removal box, the support frame is sequentially assembled with cyclone separator, screening assembly and storage tank from top to bottom, wherein, the bottom of cyclone separator is sealed communication through hose and valve and screening assembly, and screening assembly is used for screening the abrasive separated by cyclone separator, the bottom of screening assembly is connected with the impurity removal subassembly through hose and valve, and the impurity removal subassembly can remove the impurity of screened abrasive, the utility model discloses the synergistic effect of screening and impurity removal subassembly, in the abrasive recycling, the vibration motor drives the inclined screen mesh to screen the cyclone separator recovery's mass larger particulate matter, and separates the qualified abrasive and removes mass larger impurity, arc electromagnetic iron remover then adsorbs ferromagnetic impurity and improves the purity, reduces the circulation interference and equipment loss, prolongs the system life.

Description

Technical Field

[0001] This utility model mainly relates to the field of sandblasting equipment technology, specifically a sandblasting abrasive conveying system. Background Technology

[0002] In the field of sandblasting equipment technology, sandblasting is a key process that uses high-speed abrasive jets to clean, remove rust, strengthen, or modify the surface of workpieces. It is widely used in industries such as machinery manufacturing, shipbuilding, and steel structure processing. Abrasives are the core consumable material in sandblasting operations, and their transportation and recycling directly affect operational efficiency, processing quality, and production costs.

[0003] Currently, traditional sandblasting abrasive conveying systems often rely solely on cyclone separators for initial abrasive separation during the abrasive circulation process. However, the dust generated during sandblasting operations is mixed with the recycled abrasive, containing not only reusable, qualified abrasive but also large impurities, as well as ferromagnetic impurities such as rust fragments and metal shavings. Directly reusing this unfiltered mixed abrasive not only reduces the surface finish of the workpiece but also increases equipment failure rates due to impurities clogging pipes and wearing down the spray gun. Furthermore, it exacerbates wear and tear on conveying system components, significantly shortening the equipment's lifespan. Utility Model Content

[0004] This utility model provides a solution that addresses the problem of overly simplistic existing technical solutions. It offers a significantly different approach, primarily providing a sandblasting abrasive conveying system. This system solves the problem mentioned in the background section where traditional sandblasting abrasive conveying systems rely solely on cyclone separators for initial separation during abrasive circulation. The resulting dust from sandblasting mixes with the recycled abrasive, containing both qualified abrasive and large impurities, as well as ferromagnetic impurities. Direct reuse of this unfiltered mixed abrasive reduces workpiece processing accuracy, increases equipment failure, exacerbates component wear, and significantly shortens equipment lifespan.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A sandblasting abrasive conveying system includes a sandblasting cabinet. A support frame and a dust collection box are arranged at the rear of the sandblasting cabinet. A cyclone separator, a screening component, and a storage box are sequentially assembled on the support frame from top to bottom. The bottom of the cyclone separator is sealed and connected to the screening component through a hose and a valve. The screening component is used to screen the particles separated by the cyclone separator. The bottom of the screening component is connected to a purification component through a hose and a valve. The purification component can remove impurities from the screened abrasive.

[0006] More preferably, the screening assembly includes a screening box, which is connected to a cyclone separator via a hose and a valve; a material collection box is provided on one side of the screening box, and a vibration motor is installed at both the front and rear ends of the screening box; a material collection hopper is provided at the bottom of the screening box; and an inclined screening screen is provided inside the screening box.

[0007] More preferably, each of the four corners of the screening box is provided with a first mounting block, and the bottom of each first mounting block is connected to a second mounting block through a spring damping shock absorber. Each second mounting block is fixedly connected to the support frame.

[0008] More preferably, the impurity removal component includes a housing, which is connected to the screening box via a valve and a hose; an electromagnetic iron remover is installed on the outer wall of the housing, and a discharge pipe is provided at its bottom. The inner wall of the discharge pipe is provided with an installation pipe, which is fixedly connected to the storage box.

[0009] More preferably, the side of the electromagnetic separator that is in close contact with the outer wall of the shell is arc-shaped so as to fit the outer wall of the shell; the upper part of the mounting tube is bucket-shaped and its inner wall diameter is larger than the diameter of the upper feed tube of the shell.

[0010] More preferably, the air inlet of the cyclone separator is connected to the ash hopper at the bottom of the sandblasting cabinet via a pipe, and a centrifugal fan is installed on the dust collection box.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This abrasive conveying system, through screening and impurity removal components, utilizes a screening assembly and an impurity removal assembly. During the abrasive recycling process, vibrating motors at the front and rear ends of the screening box drive the inclined screening screen to vibrate at high frequency, screening the particles recovered by the cyclone separator. Abrasive particles that meet the specifications fall smoothly into the collection hopper, while unqualified particles automatically slide along the inclined screen surface into the collection box, completing the screening of the abrasive and removing larger impurities. Simultaneously, an arc-shaped electromagnetic separator closely adheres to the outer wall of the casing, effectively adsorbing ferromagnetic impurities such as rust fragments and metal particles mixed in with the abrasive, improving the purity of the abrasive. This combination not only reduces the interference of unqualified abrasive and impurities on the circulation system but also reduces equipment wear caused by abrasive issues, thereby extending the overall service life of the system.

[0012] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an enlarged structural schematic diagram of the screening component of this utility model; Figure 3This is a fully enlarged cross-sectional view of the screening component of this utility model; Figure 4 This is an enlarged structural schematic diagram of the impurity removal component of this utility model; Figure 5 This is a fully enlarged cross-sectional schematic diagram of the impurity removal component of this utility model.

[0014] Numbering on the map: 1. Sandblasting cabinet; 2. Support frame; 3. Dust collector; 4. Cyclone separator; 5. Screening assembly; 501. Screening box; 502. Gathering box; 503. Vibrating motor; 504. Gathering hopper; 505. First mounting block; 506. Spring damping shock absorber; 507. Second mounting block; 6. Storage box; 7. Impurity removal assembly; 701. Shell; 702. Electromagnetic iron separator; 703. Discharge pipe; 704. Mounting pipe. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0016] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Please refer to the appendix carefully. Figure 1-5 A sandblasting abrasive conveying system includes a sandblasting cabinet 1. A support frame 2 and a dust collection box 3 are arranged at the rear of the sandblasting cabinet 1. A cyclone separator 4, a screening component 5, and a storage box 6 are sequentially assembled on the support frame 2 from top to bottom. The bottom of the cyclone separator 4 is sealed and connected to the screening component 5 through a hose and a valve. The screening component 5 is used to screen the particles separated by the cyclone separator 4. The bottom of the screening component 5 is connected to a purification component 7 through a hose and a valve. The purification component 7 can remove impurities from the screened abrasive.

[0018] In this embodiment, as Figure 1As shown, the air inlet of the cyclone separator 4 is connected to the dust hopper at the bottom of the sandblasting cabinet 1 via a pipe, and a centrifugal fan is installed on the dust collection box 3. When the sandblasting abrasive equipment is running, the centrifugal fan starts, and the dust enters the cyclone separator 4 for separation: the larger dust particles after separation settle downwards and accumulate, while the lighter dust particles enter the dust collection box 3 through the pipe; the filter bags in the dust collection box 3 intercept and filter the dust, allowing clean air to pass through, while the intercepted dust adheres to the surface of the filter bags. In addition, the dust collection box 3 is also equipped with a pulse cleaning device, which can be controlled by timer or automatically controlled by pressure difference to spray high-pressure airflow onto the filter bags to remove the dust adhering to their surface. The cleaned dust finally falls into the dust hopper at the bottom of the dust collection box 3.

[0019] In this embodiment, as Figure 1 As shown, an abrasive conveying pipeline is led out from the storage tank 6. A corresponding flow control valve and conveying pump are installed on the pipeline leading to the spray gun system to control the flow rate and pressure of the abrasive entering the normal pressure spray gun. The abrasive can be conveyed to the spray gun through the pipeline under pressure by opening the electric control valve.

[0020] Compressed air, as the main source of power for sandblasting, is generated by an air compressor. The air compressor output is equipped with an air filter and dryer to remove moisture, impurities, and oil from the air. The compressed air is connected to the spray gun system to provide strong power support for sandblasting, so as to meet the air pressure requirements of sandblasting operations. Pressure regulating valves and pressure gauges are installed on the compressed air pipeline to facilitate adjustment and real-time monitoring of air pressure.

[0021] In this embodiment, as Figure 2 and Figure 3 As shown, the screening assembly 5 includes a screening box 501, which is connected to the bottom ash hopper of the cyclone separator 4 via a hose and a valve; a material collection box 502 is provided on one side of the screening box 501, and a vibration motor 503 is installed at both the front and rear ends of the screening box 501, while a material collection hopper 504 is provided at the bottom; an inclined screening screen is provided inside the screening box 501 (the inclination angle of the screening screen is 15°-25°).

[0022] When the valve is opened, larger dust particles separated by the screening component 5 fall onto the screening screen. Simultaneously, the vibrating motor 503 starts, causing the screening screen to vibrate through the screening box 501, thus screening the larger dust particles. Particles that meet the specifications (including abrasives and metal particles) fall through the screening screen into the collection hopper 504, while non-compliant particles remain on the screening screen and gradually move backward along the inclined surface, eventually falling into the collection box 502. The collection box 502 has a valve at its discharge port, which can be opened for discharge operations as needed.

[0023] In this embodiment, as Figure 2 and Figure 3 As shown, a first mounting block 505 is provided near each of the four corners of the screening box 501. The bottom of each first mounting block 505 is connected to a second mounting block 507 through a spring damping shock absorber 506. Each second mounting block 507 is fixedly connected to the support frame 2. The four sets of spring damping shock absorbers 506 work together to buffer and reduce vibration, which can prevent the vibration motor 503 from causing the support frame 2 to vibrate as a whole when it is working, thereby preventing the normal operation of other components on the support frame 2 from being affected.

[0024] In this embodiment, as Figure 4 and Figure 5 As shown, the impurity removal component 7 includes a housing 701, which is connected to the screening box 501 via valves and hoses. Electromagnetic iron separators 702 are installed on both sides of the outer wall of the housing 701, and a discharge pipe 703 is provided at the bottom of the housing 701. An installation pipe 704 is provided on the inner wall of the discharge pipe 703, and the installation pipe 704 is fixedly connected to the storage box 6. The side of the electromagnetic iron separator 702 that is close to the outer wall of the housing 701 is arc-shaped so as to fit tightly against the outer wall of the housing 701. The upper part of the installation pipe 704 is bucket-shaped, and its inner wall diameter is larger than the diameter of the upper feed pipe of the housing 701.

[0025] When the valve between the impurity removal component 7 and the screening component 5 is opened, the abrasive in the hopper 504 falls naturally. Simultaneously, the electromagnetic separator 702 activates, adsorbing ferromagnetic impurities (such as rust fragments and metal particles) mixed in the abrasive. The electromagnetic separator 702 is de-energized periodically, simultaneously closing the valve between the impurity removal component 7 and the screening component 5, allowing the adsorbed impurities to fall into the discharge pipe 703 below and be discharged. A collection device can be installed below the discharge pipe 703 to collect the discharged impurities. The abrasive after impurity removal then enters the storage tank 6 through the installation pipe 704.

[0026] The specific operating procedure of this utility is as follows: The sandblasting operation is carried out in the sandblasting cabinet 1 by spray gun. The dust (including recyclable abrasive particles) generated during the process is sucked into the dust hopper at the bottom of the sandblasting cabinet 1 by the action of the centrifugal fan and transported to the cyclone separator 4 through the pipeline.

[0027] Cyclone separator 4 separates dust. Larger abrasive particles settle downwards and accumulate, while lighter dust particles enter the dust collector 3 with the airflow. The filter bags in the dust collector 3 intercept and filter the lighter dust particles, allowing clean air to be discharged. The dust adhering to the surface of the filter bags is removed by a pulse cleaning device (which can be timed or automatically controlled according to the pressure difference) and falls into the bottom ash hopper.

[0028] Larger particles separated by the cyclone separator 4 enter the screening box 501 of the screening assembly 5 through a hose and valve. The vibration motors 503 at the front and rear ends of the screening box 501 are started, driving the inclined screening screen inside to vibrate and screen the particles. Particles that meet the specifications fall into the bottom collection hopper 504, while particles that do not meet the specifications move along the inclined surface to the side collection box 502, which can be discharged as needed through the valve at the discharge port of the collection box 502. At the same time, the screening box 501 is connected to the support frame 2 through four sets of spring damping shock absorbers 506, which play a buffering and shock absorption role to avoid affecting other components.

[0029] Open the valve below the hopper 504. The qualified abrasive in the hopper 504 enters the housing 701 of the impurity removal component 7 through the valve and hose. The arc-shaped electromagnetic separator 702 (closely attached to the outer wall of the housing 701) on the outer wall of the housing 701 is activated to adsorb ferromagnetic impurities in the abrasive. The electromagnetic separator 702 is de-energized at regular intervals, and at the same time the valve connected to the screening component 5 is closed, so that the impurities fall into the discharge pipe 703 and are discharged (a collection device can be set below). The abrasive after impurity removal enters the storage box 6 through the installation pipe 704.

[0030] The abrasive in storage tank 6 is transported to the spray gun system through a conveying pipeline. The flow control valve and conveying pump on the pipeline control the flow and pressure of the abrasive. The electric control valve opens, allowing the abrasive to be delivered to the spray gun under pressure. At the same time, the compressed air generated by the air compressor is connected to the spray gun system to provide power for sandblasting. The pressure regulating valve and pressure gauge on the compressed air pipeline can adjust and monitor the air pressure in real time to meet the needs of sandblasting operations, forming a complete "sandblasting-recycling-treatment-reuse" cycle.

[0031] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A sandblasting abrasive conveying system, comprising a sandblasting cabinet (1), characterized in that: The sandblasting cabinet (1) is provided with a support frame (2) and a dust collection box (3) at the rear. The support frame (2) is equipped with a cyclone separator (4), a screening component (5) and a storage box (6) from top to bottom. The bottom of the cyclone separator (4) is connected to the screening component (5) in a sealed manner through a hose and a valve. The screening component (5) is used to screen the particles separated by the cyclone separator (4). The bottom of the screening component (5) is connected to a cleaning component (7) through a hose and a valve. The cleaning component (7) can remove impurities from the screened abrasive.

2. The abrasive conveying system for sandblasting according to claim 1, characterized in that: The screening assembly (5) includes a screening box (501), which is connected to the cyclone separator (4) via a hose and a valve; a material collection box (502) is provided on one side of the screening box (501), and a vibration motor (503) is installed at both the front and rear ends of the screening box (501); a material collection hopper (504) is provided at the bottom of the screening box (501); and an inclined screening screen is provided inside the screening box (501).

3. The abrasive conveying system for sandblasting according to claim 2, characterized in that: The screening box (501) is provided with a first mounting block (505) near the four corners. The bottom of each first mounting block (505) is connected to a second mounting block (507) through a spring damping shock absorber (506). Each second mounting block (507) is fixedly connected to the support frame (2).

4. The abrasive conveying system for sandblasting according to claim 1, characterized in that: The impurity removal component (7) includes a housing (701), which is connected to the screening box (501) via a valve and a hose; an electromagnetic iron remover (702) is installed on the outer wall of the housing (701), and a discharge pipe (703) is provided at its bottom. An installation pipe (704) is provided on the inner wall of the discharge pipe (703), and the installation pipe (704) is fixedly connected to the storage box (6).

5. The abrasive conveying system for sandblasting according to claim 4, characterized in that: The electromagnetic separator (702) is arc-shaped on one side of the outer wall of the housing (701) so as to fit against the outer wall of the housing (701); the upper part of the mounting tube (704) is set in a bucket shape, and its inner wall diameter is larger than the diameter of the upper feed tube of the housing (701).

6. The abrasive conveying system for sandblasting according to claim 1, characterized in that: The air inlet of the cyclone separator (4) is connected to the ash hopper at the bottom of the sandblasting cabinet (1) through a pipe, and a centrifugal fan is installed on the dust collection box (3).

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