A new type of recyclable sandblasting machine

Abstract

This utility model provides a novel recyclable sandblasting machine, relating to the field of sandblasting equipment technology. It includes a segmented frame, a dust-collecting storage tank and a sand-suction fan, as well as a pressure sandblasting tank, an electrical control box, and a sand screening machine located in the equipment installation area within the segmented frame. The dust collector filter element and the storage tank are integrated and interconnected, forming a whole. The pressure sandblasting tank and the sand screening machine are both connected to the storage tank on the upper part of the platform. It also includes a negative pressure sand-suction recovery system, which includes a sand-suction fan, a storage tank, and a sand-suction pipeline, all interconnected. The sandblasting tank has a flexible sandblasting pipe connected to the sandblasting gun. The qualified sand outlet of the sand screening machine is also connected to the sand-suction pipeline. When the sand-suction fan is working, the negative pressure generated in the pipeline can recover the sand sprayed from the sandblasting gun in the working area and the qualified sand screened by the sand screening machine, returning it to the storage tank for recycling through the sand-suction pipeline. Dust is filtered by the filter element and discharged through the fan outlet.

Description

Technical Field

[0001] This utility model relates to a novel recyclable sandblasting machine, and more particularly to an environmentally friendly sandblasting machine that integrates sandblasting and sand recycling, which is mainly applicable to the field of environmentally friendly sandblasting room technology. Background Technology

[0002] A sandblasting machine is a device that uses compressed air to propel abrasive materials (such as corundum, brown fused alumina, glass beads, and steel shot) at high speed onto the surface of a workpiece. Primarily using compressed air as a power source, it achieves multiple functions such as cleaning, rust removal, deburring, and enhancing surface adhesion. Due to its high efficiency, sandblasting machines are widely used in metal processing, automobile manufacturing, ship repair, surface treatment, mold cleaning, and casting cleaning, among many other fields. Its working principle involves using the powerful force of compressed air to propel the abrasive material through a blasting pipe at extremely high speeds to impact the workpiece surface. The impact and friction of the abrasive particles effectively remove oxide layers, oil stains, rust, old coatings, burrs, and other impurities, thereby achieving the purpose of cleaning, roughening, or strengthening the surface.

[0003] CN213562016U discloses an automatic recycling sandblasting machine, including an electrical box, a spray gun mechanism, and a pressure tank located on one side of the spray gun mechanism. Above the pressure tank, a sand hopper and a cyclone dust collector are arranged in sequence. A dust collector unit is located on one side of the cyclone dust collector and is connected to the dust collector unit. A vacuum pump is located below the spray gun mechanism and is connected to the cyclone dust collector. The spray gun mechanism, pressure tank, and cyclone dust collector are all connected to a valve assembly. This sandblasting machine can realize automatic abrasive recovery, separation, screening, and automatic addition to the sandblasting tank for recycling, with a high degree of automation.

[0004] However, this patented technology involves recovering sand and dust together and then using wind separation technology to separate them. The disadvantages of this technology are low sand and dust separation accuracy and efficiency, resulting in a large dust content in the separated sand. After multiple cycles, the dust content in the sand increases significantly, severely affecting the sandblasting quality and efficiency. Furthermore, the low sand recovery power leads to low recovery efficiency, short recovery distance, and inability to meet the requirements for large-scale sand recovery. According to the patent's specification and accompanying drawings, the spray gun mechanism, pressure tank, sand hopper, and dust collector of this sandblasting machine are all configured as separate, independent devices. These components are manufactured separately, transported to the sandblasting site, and assembled into a complete unit before achieving full functionality. This method of assembling individual independent devices on-site has many drawbacks, such as a lack of overall integration, structural dispersion, and a large site footprint. Therefore, it is necessary to disclose a new type of recovery-type sandblasting machine to effectively overcome the aforementioned defects. Utility Model Content

[0005] This utility model overcomes the shortcomings of the prior art and provides a new type of recyclable sandblasting machine, which overcomes the technical defects mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A novel recyclable sandblasting machine includes a segmented frame, with a support platform on the upper part of the segmented frame and an equipment installation area formed on the lower part of the segmented frame.

[0008] It also includes a storage tank fixed on the bearing platform, and a pressure blasting tank and a sand screening machine located in the equipment installation area of ​​the segmented frame. The pressure blasting tank and the sand screening machine are both connected to the storage tank.

[0009] It also includes a negative pressure sand suction and recovery system, which includes a sand suction fan and a sand suction pipeline. The sand suction fan is connected to a storage tank. One end of the sand suction pipeline is connected to the storage tank, and the other end extends to the sand hopper in the sandblasting work area. The pressure sandblasting tank is connected to a sandblasting gun through a sandblasting hose. The qualified sand outlet of the sand screening machine is connected to the sand suction pipeline. When the sand suction fan is working, the sand coming out of the sandblasting gun in the work area and the qualified sand coming out of the sand screening machine are returned to the storage tank through the sand suction pipeline for recycling, forming a closed-loop system.

[0010] Furthermore, the interior of the storage box forms a sand settling zone and a dust filtration zone, and a dust removal filter element is installed on the top of the dust filtration zone; the dust removal filter element is connected to the suction pipe, and the suction pipe is connected to the air inlet of the sand suction fan.

[0011] Furthermore, the cross-sectional area of ​​the storage box is expanded along the airflow direction. The sand enters the storage box through the sand suction pipe. Due to the expansion of the space and the reduction of the cross-sectional wind speed, the sand naturally settles into the sand settling area after the wind speed decreases. The dust rises with the airflow and enters the dust removal filter element for filtration. The clean air is discharged by the sand suction fan, and the sand falls into the storage box. After being screened by the sand screening machine, it is discharged.

[0012] Furthermore, the pressure blasting tank and the sand screening machine are arranged side by side in the equipment installation area of ​​the segmented frame, and are respectively connected to the bottom of the storage tank through the first discharge valve and the second discharge valve.

[0013] Furthermore, the sand screening machine is connected to the lower receiving hopper, and the lower receiving hopper is connected to the sand suction pipe.

[0014] Furthermore, the sand screening machine is a vibrating screen or an inclined screen, and the installation positions of the pressure blasting tank and the sand screening machine are interchangeable.

[0015] Furthermore, when the sand suction fan is working, the negative pressure in the sand suction pipe is 4000 to 5000 Pa, and the wind speed in the sand suction pipe is 28 to 35 m / s, so as to generate the power to suspend and move the sand.

[0016] Furthermore, an electrical control box is also installed below the segmented frame, and the electrical control box includes:

[0017] Sandblasting control unit, which regulates the working pressure of the pressure sandblasting tank and the start / stop of the sandblasting gun;

[0018] The recovery control unit controls the negative pressure value of the sand suction fan and the air velocity of the sand suction pipeline;

[0019] The screening control unit controls the operation of the sand screening machine.

[0020] Furthermore, a maintenance walkway is provided next to the support platform, and a safety fence is provided next to the maintenance walkway; a ladder extending from the bottom to the support platform is also provided next to the segmented frame.

[0021] The segmented frame adopts an upper and lower split modular structure, including an upper load-bearing module and a lower equipment module;

[0022] The upper support module includes a support platform and a storage box fixed thereon;

[0023] The lower equipment module includes a pressure blasting tank and a sand screening machine;

[0024] The upper support module and the lower equipment module are two independent units and support rapid reassembly and installation.

[0025] The motor power of the sand suction fan (5) is greater than 11kw.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] This utility model integrates sandblasting, sand suction power, sand storage, automatic screening, fan silencing, electrical control, and dust removal functions into a single unit, featuring a compact structure and simple operation. The coordinated operation of each component effectively solves the long-standing technical challenges in miniaturization and integration of sand recycling, sand and dust separation, sand storage, sand conveying, and dust collection in the industry. It completely overcomes the shortcomings of existing products, such as loose structure, large size, extensive on-site installation, and difficulty in quality control. The noise generated by the sand suction fan is controlled through a silencing structure, improving the working environment. This not only improves the efficiency of sandblasting operations, enhances sandblasting quality, reduces sand usage costs, and alleviates the labor intensity of operators, but also significantly reduces environmental pollution, maximizes sand recycling, further optimizes standardized production, enhances equipment reliability and stability, improves product quality control, and significantly reduces production costs. It promotes the industrialization of this product, offering significant economic and social benefits and providing a new design approach for the sustainable development of the environmentally friendly sandblasting industry. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the operation of the first embodiment of the sandblasting machine;

[0030] Figure 2 This is a perspective view of the first embodiment of the sandblasting machine;

[0031] Figure 3 This is a front view of the first embodiment of the sandblasting machine;

[0032] Figure 4 This is a schematic diagram of the operation of the first embodiment of the sandblasting machine;

[0033] Figure 5 This is a perspective view of the first embodiment of the sandblasting machine;

[0034] In the diagram: 1. Segmented frame; 101. Load-bearing platform; 102. Maintenance walkway; 103. Safety fence; 2. Storage bin; 201. Sand settling area; 202. Dust filtration area; 3. Pressure blasting tank; 4. Sand screening machine; 5. Sand suction fan; 6. Sand suction pipeline; 7. Sandblasting gun; 8. Dust removal filter element; 9. Suction pipe; 10. First discharge valve; 11. Second discharge valve; 12. Lower receiving hopper; 13. Electrical control box; 14. Ladder. Detailed Implementation

[0035] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0036] like Figures 1 to 5 As shown, this utility model claims protection for a novel recyclable sandblasting machine, including a segmented frame 1, with a support platform 101 on the upper part of the segmented frame 1 and an equipment installation area formed at the lower part of the segmented frame 1; it also includes a storage tank 2, a pressure sandblasting tank 3 and a sand screening machine 4 located on the segmented frame 1, both of which are connected to the storage tank 2. This sandblasting machine allows for the free selection of multiple working modes through the coordinated operation of its components. It features a compact structure and ingenious design. By utilizing frequency conversion to change the suction force of the sand suction fan 5, the most reasonable sand suction wind speed is selected, reducing wear on the sand suction pipe 6, increasing the lifespan of worn parts, and reducing sand loss.

[0037] The storage bin 2 is fixed on the support platform 101, and its interior forms a sand settling zone 201 and a dust filtration zone 202. A dust collector filter element 8 is installed on the top of the dust filtration zone 202, and the dust collector filter element 8 is connected to a suction pipe 9, which is connected to the air inlet of the sand suction fan 5. Figure 1 as well as Figure 4 As can be seen, the middle part of the storage box 2 protrudes downwards, which facilitates the smooth flow of sand during discharge, preventing sand accumulation and stagnation. When the sand enters the storage box 2 through the sand suction pipe 6, due to the increased space and reduced cross-sectional wind speed, the sand naturally settles into the sand settling area 201 after the wind speed decreases. Dust rises with the airflow and is filtered by the dust collector filter 8. Clean air is then discharged by the sand suction fan 5, and the sand falls back into the storage box 2, where it is screened by the sand screening machine 4 before being discharged. In this embodiment, the sand suction fan 5 is a silencer fan, which has a sound-absorbing structure to achieve a sound-absorbing effect. This is existing technology and will not be elaborated further. In this embodiment, the motor power of the sand suction fan 5 is greater than 11 kW.

[0038] Both the pressure blasting tank 3 and the sand screening machine 4 are located in the equipment installation area of ​​the segmented frame 1, arranged side by side, allowing for different installation positions. They are connected to the bottom of the storage tank 2 via a first discharge valve 10 and a second discharge valve 11, respectively. The first discharge valve 10 and the second discharge valve 11 independently control the discharge of sand from the pressure blasting tank 3 and the sand screening machine 4. The pressure blasting tank 3 is connected to a sandblasting gun 7 via a sandblasting hose for sandblasting operations in the work area. The sand screening machine 4 is connected to a lower receiving hopper 12, which in turn is connected to a sand suction pipe 6. The sand screening machine 4 screens the sand, and qualified sand enters the sand suction pipe 6 through the lower receiving hopper 12.

[0039] like Figures 1 to 3 The sand screening machine 4 of the sandblasting machine shown is a vibrating screen, such as... Figures 4 to 5The sand screening machine 4 shown is an inclined screen; the circular vibrating screen can screen out sand of various specifications to meet the requirements of fine sandblasting. The inclined screen has a small screening range, focusing on screening out impurities and dust, while the remaining sand participates in the sandblasting cycle.

[0040] The vibrating screen works by having two motors rotate synchronously in opposite directions, causing the vibrator to generate a reverse excitation force. This forces the screen body to move the screen mesh longitudinally, causing the material on it to be periodically thrown forward a distance by the excitation force, thus completing the material screening operation. Through this vibration, sand of different sizes jumps on the screen mesh. Sand particles smaller than the screen holes pass through the screen mesh and fall down, while those larger than the screen holes remain on the screen mesh and are separated.

[0041] The working principle of an inclined screen is that it uses an inclined screen structure, and the sand flows from top to bottom on the inclined screen surface. The upper screen has large holes, which only screen out impurities, while the bottom screen only lets in dust. The sand in the middle participates in the circulation.

[0042] Vibrating screens and inclined screens are both existing technologies, and will not be elaborated upon here, nor are specific applications limited.

[0043] The installation positions of the pressure blasting tank 3 and the sand screening machine 4 can be interchanged, and the specific positions are not limited.

[0044] The negative pressure sand suction and recovery system includes a sand suction fan 5 and a sand suction pipe 6. The sand suction fan 5 is connected to the storage tank 2, and one end of the sand suction pipe 6 is connected to the storage tank 2, while the other end extends to the sand hopper in the sandblasting work area. As explained above, the sand suction fan 5 is connected to the dust collector filter 8 via the suction pipe 9. The dust collector filter 8 is located inside the storage tank 2. Therefore, when the sand suction fan 5 is working, it creates negative pressure in the storage tank 2. The sand from the sandblasting gun 7 in the work area and the qualified sand from the sand screening machine 4 are returned to the storage tank 2 through the sand suction pipe 6 for recycling, forming a closed-loop system. By controlling the power and adjusting the frequency of the sand suction fan 5, the negative pressure in the sand suction pipe 6 can be maintained at 4000 to 5000 Pa, and the air velocity in the sand suction pipe 6 at 28 to 35 m / s, generating the power to suspend and move the sand. In practical applications, the sand hopper in the sandblasting work area is located below the product and is used to receive the sand that falls from the sandblasting gun 7 onto the product. The lower end of the hopper has a funnel-shaped outlet, and multiple funnel-shaped outlets are connected to the sand suction pipe 6, so that the sand in the work area can fall to the sand receiving plate and then be transported back along the sand suction pipe 6 under the action of negative pressure.

[0045] Below the segmented frame 1, an electrical control box 13 is also installed for controlling the sandblasting machine. Specifically, it includes a sandblasting control unit, a recovery control unit, and a screening control unit; the sandblasting control unit adjusts the working pressure of the pressure sandblasting tank and the start and stop of the sandblasting gun; the recovery control unit controls the negative pressure value of the sand suction fan and the air speed of the sand suction pipeline; the screening control unit controls the operation of the sand screening machine. The control principle of the above-mentioned electrical control technology is existing conventional technology and will not be elaborated here.

[0046] A maintenance walkway 102 is provided next to the support platform 101, and a safety railing 103 is provided next to the maintenance walkway 102 to ensure the safety of operators. A ladder 14 extending from bottom to top to the support platform 101 is also provided next to the segmented frame 1 to facilitate operators to go up and down.

[0047] This sandblasting machine uses a suction fan 5 to generate negative pressure in the pipeline to transport sand, impurities, and dust. The storage tank 2 is connected to the pressure sandblasting tank 3 and the sand screening machine 4 through the first discharge valve 10 and the second discharge valve 11 for easy control. The sand screened by the sand screening machine 4 enters the suction pipeline 6 for recycling. The storage tank 2 has a dust removal filter element 8, thus providing a dust removal function. This sandblasting machine is a new type of sandblasting equipment that integrates sandblasting, suction power, sand storage, screening, dust removal, and sound insulation functions.

[0048] This utility model's sandblasting machine uses a suction fan 5 to generate negative pressure in the pipeline, enabling the transport of sand, impurities, and dust. The storage tank 2, pressure sandblasting tank 3, and sand screening machine 4 are connected via a first discharge valve 10 and a second discharge valve 11, respectively, facilitating easy operation. Suitable sand screened by the sand screening machine 4 enters the suction pipeline 6 for recycling. The pressure sandblasting tank 3 and sand screening machine 4 can operate synchronously, sandblasting and screening simultaneously. Periodic sand screening is also an option. Alternatively, before operation, the first discharge valve 10 can be closed and the second discharge valve 11 opened, allowing the sand in the storage tank 2 to be screened by the sand screening machine 4, retaining sand of suitable specifications. Then, the first discharge valve 10 is opened to allow the sand to enter the pressure sandblasting tank 3 for sandblasting. The pressure sandblasting tank 3 and sand screening machine 4 then operate synchronously, sandblasting and screening simultaneously. Specific usage is not limited and can be determined according to actual needs. The dust filter element 8 inside the storage tank 2 provides the sandblasting machine with a dust removal function. This sandblasting machine cleverly integrates sandblasting, sand suction power, sand storage, screening and dust removal functions, making it an ideal sandblasting equipment to meet environmentally friendly sandblasting requirements.

[0049] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel recyclable sandblasting machine, characterized in that, It includes a segmented frame (1), the upper part of which is provided with a support platform (101), and the lower part of which forms an equipment installation area; It also includes a storage tank (2) and a sand suction fan (5) fixed on the bearing platform (101), as well as a pressure sandblasting tank (3) and a sand screening machine (4) located in the equipment installation area of ​​the segmented frame (1), and the pressure sandblasting tank (3) and the sand screening machine (4) are connected to the storage tank (2); It also includes a negative pressure sand suction and recovery system, which includes a sand suction fan (5) and a sand suction pipeline (6). The sand suction fan (5) is connected to the storage tank (2). One end of the sand suction pipeline (6) is connected to the storage tank (2), and the other end extends to the sand hopper in the sandblasting work area. The pressure sandblasting tank (3) is connected to the sandblasting gun (7) through the sandblasting hose. The qualified sand outlet of the sand screening machine (4) is connected to the sand suction pipeline (6). When the sand suction fan (5) is working, the sand coming out of the sand blasting gun (7) in the work area and the qualified sand coming out of the sand screening machine (4) are returned to the storage tank (2) through the sand suction pipeline (6) for recycling, forming a closed-loop system.

2. The novel recyclable sandblasting machine according to claim 1, characterized in that, The storage box (2) has a sand settling zone (201) and a dust filtration zone (202) inside. A dust filter element (8) is installed on the top of the dust filtration zone (202). The dust filter element (8) is connected to the suction pipe (9), and the suction pipe (9) is connected to the air inlet of the sand suction fan (5).

3. The novel recyclable sandblasting machine according to claim 2, characterized in that, The cross-sectional area of ​​the storage box (2) expands along the airflow direction. The sand enters the storage box (2) through the sand suction pipe (6). Due to the expansion of space and the reduction of cross-sectional wind speed, the sand naturally settles into the sand settling area (201) after the wind speed decreases. The dust rises with the airflow and enters the dust removal filter element (8) for filtration. The clean air is discharged by the sand suction fan (5). The sand falls into the storage box (2) and is discharged after being screened by the sand screening machine (4).

4. The novel recyclable sandblasting machine according to claim 1, characterized in that, The pressure blasting tank (3) and the sand screening machine (4) are arranged side by side in the equipment installation area of ​​the segmented frame (1), and are connected to the bottom of the storage tank (2) through the first discharge valve (10) and the second discharge valve (11), respectively.

5. The novel recyclable sandblasting machine according to claim 1, characterized in that, The sand screening machine (4) is connected to the lower receiving hopper (12), and the lower receiving hopper (12) is connected to the sand suction pipe (6).

6. The novel recyclable sandblasting machine according to any one of claims 1 to 5, characterized in that, The sand screening machine (4) is a vibrating screen or an inclined screen, and the installation positions of the pressure sandblasting tank (3) and the sand screening machine (4) can be interchanged.

7. The novel recyclable sandblasting machine according to claim 1, characterized in that, When the sand suction fan (5) is working, the negative pressure of the sand suction pipe (6) is 4000 to 5000 Pa and the wind speed of the sand suction pipe (6) is 28 to 35 m / s, so as to generate the power to make the sand material suspend and move.

8. The novel recyclable sandblasting machine according to claim 1, characterized in that, An electrical control box (13) is also provided below the segmented frame (1), and the electrical control box (13) includes: The sandblasting control unit adjusts the working pressure of the pressure sandblasting tank (3) and the start and stop of the sandblasting gun (7); The recovery control unit controls the negative pressure value of the sand suction fan (5) and the wind speed of the sand suction pipe (6); The screening control unit controls the operation of the sand screening machine (4).

9. The novel recyclable sandblasting machine according to claim 1, characterized in that, A maintenance walkway (102) is provided next to the bearing platform (101), and a safety fence (103) is provided next to the maintenance walkway (102); a ladder (14) extending from bottom to top to the bearing platform (101) is also provided next to the segmented frame (1).

10. The novel recyclable sandblasting machine according to claim 1, characterized in that, The segmented frame (1) adopts an upper and lower split modular structure, including an upper load-bearing module and a lower equipment module; The upper support module includes a support platform (101) and a storage box (2) fixed thereon; The lower equipment module includes a pressure blasting tank (3) and a sand screening machine (4); The upper support module and the lower equipment module are two independent units and support rapid reassembly and installation; The motor power of the sand suction fan (5) is greater than 11kw.

Images