Hydrocarbon abrasive surface treatment device

Abstract

A hydrocarbon abrasive material surface treatment device comprises a main machine frame, a water supply filtering system, an abrasive material supply system, an antirust agent system, a cleaning agent system, a compressor system, an electric control system and a spray gun, and the water supply filtering system comprises a low-pressure water supply filtering system and a high-pressure water system. The low-pressure water supply filtering system supplies water to the high-pressure water system and guarantees the water supply pressure, the high-pressure water system provides high-pressure water for the spray gun, and the abrasive supply system evenly and stably supplies hydrocarbon abrasives in an abrasive tank to the spray gun in a suspended state through an abrasive conveying pipeline by means of filtered low-pressure air. According to the three-phase jet flow spray gun, high-pressure gas, water and abrasive three-phase jet flow cleaning can be carried out, a front-arranged gas-in-water spray head is arranged, two-phase jet flow cleaning that high-pressure gas pushes high-pressure water can be carried out, use is convenient and flexible, the cleaning capacity and the cleaning effect of the device are improved, and water forms superfine water mist in a cleaning area to play a good dust suppression role.

Description

Technical Field

[0001] This invention relates to the field of surface treatment equipment, and more particularly to a hydrocarbon abrasive surface treatment apparatus. Background Technology

[0002] Surface treatment is a crucial step in machining and equipment maintenance. Its core function is to effectively remove contaminants such as oil, rust, and residual paint from workpiece surfaces, thereby ensuring product quality and performance. Water jet cleaning technology has become one of the mainstream cleaning methods due to its high efficiency and adaptability. However, the composition of the jet needs to be adjusted according to different types of dirt: for ordinary oil stains, water jets with added organic cleaning agents are usually used; while for stubborn dirt such as rust, oxide layers, or coating residues, abrasives need to be introduced to enhance the impact and peeling effect.

[0003] Traditional cleaning technologies suffer from significant environmental and economic drawbacks. While organic cleaning agents, such as solvents or surfactants, are effective at removing oil, their subsequent processing is difficult, they easily cause environmental pollution, and their usage costs are high, leading to their gradual phasing out by the industry. On the other hand, traditional abrasives, such as quartz sand and steel grit, can improve cleaning efficiency, but their high hardness can easily damage the workpiece substrate, and the waste generated is difficult to recycle, further increasing the environmental burden and overall costs.

[0004] Sodium bicarbonate (baking soda), as an environmentally friendly abrasive, has unique advantages: its moderate Mohs hardness of 3.0 allows it to effectively clean surfaces without damaging the substrate; its water solubility makes waste easy to handle, meeting environmental protection requirements; and it is chemically stable and non-toxic. However, the application of sodium bicarbonate requires solving a key technical problem—if the abrasive is mixed with water before spraying, it will lead to dissolution failure. Therefore, a pneumatic delivery method is needed to ensure that the abrasive reaches the workpiece surface only through airflow before working in conjunction with the water jet.

[0005] Existing surface treatment devices still have shortcomings in abrasive supply, multi-system coordinated control, and environmental compatibility. For example, the uniformity and stability of abrasive delivery are insufficient, the coordination between the high-pressure air source and the water flow system is poor, and integrated functional modules for rust prevention and cleaning agent addition are lacking. Therefore, there is an urgent need to develop a new type of hydrocarbon abrasive surface treatment device that can achieve efficient, environmentally friendly, and low-damage surface treatment by optimizing the abrasive supply system, high-pressure water-air coordinated control, and automated management. Summary of the Invention

[0006] The present invention aims to address the shortcomings of the prior art by providing a hydrocarbon abrasive surface treatment device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A hydrocarbon abrasive surface treatment device includes a main frame and, mounted on the main frame, a water supply and filtration system, an abrasive supply system, a rust inhibitor system, a cleaning agent system, a compressor system, an electrical control system, and a spray gun. The water supply and filtration system includes a low-pressure water supply and filtration system and a high-pressure water system. The low-pressure water supply and filtration system supplies water to the high-pressure water system and ensures the water supply pressure. The high-pressure water system provides high-pressure water to the spray gun. The compressor system directly compresses free air to a gauge pressure of 30 ≤ MPa through multi-stage compression to provide high-pressure air for the spray gun. The abrasive supply system uses filtered low-pressure air to supply hydrocarbon abrasive from the abrasive tank in a suspended state to the spray gun evenly and stably. After the workpiece is cleaned, the rust inhibitor system uses low-pressure air to deliver the rust inhibitor from the rust inhibitor tank to the rust inhibitor spray gun and spray it onto the workpiece surface. The cleaning agent system is added to the water supply and filtration system, pressurized, and then sprayed onto the workpiece surface. The electrical control system uses a PLC controller to control the water supply and filtration system, abrasive supply system, rust inhibitor system, cleaning agent system, compressor system, and spray gun.

[0009] The low-pressure water supply filtration system includes a water supply pump, a filter, a water tank, and a low-pressure water pipeline. The filter, water tank, and water supply pump are connected sequentially to the low-pressure water pipeline. The low-pressure water pipeline is connected to the tap water supply via a quick connector. After passing through the water supply pump, the low-pressure water pipeline is connected to the high-pressure pump of the high-pressure water system. After passing through the high-pressure pump, the high-pressure water pipeline of the high-pressure water system is connected sequentially to an overflow valve and a high-pressure water solenoid valve. The low-pressure water is pressurized by the high-pressure pump and then delivered to the spray gun via the high-pressure water solenoid valve and the high-pressure water pipeline. The high-pressure water is connected to the water tank via a branch drain pipe from the overflow valve.

[0010] The compressor system includes a high-pressure compressor, a gas cylinder, a pressure reducing valve, a shut-off valve, and a gas delivery pipeline. Before entering the gas delivery pipeline, the air passes through a separator, a filter, and a cooler in sequence. The clean, odorless gas, after being de-oiled and impurities removed, is compressed by the high-pressure compressor and stored in the gas cylinder. The gas delivery pipeline is then connected to the spray gun through the pressure reducing valve. Another gas delivery pipeline connected to the pressure reducing valve delivers low-pressure gas to the rust inhibitor system and the abrasive supply system through the pressure reducing valve and the shut-off valve.

[0011] The rust inhibitor system includes a rust inhibitor canister, a rust inhibitor spray gun, and a safety valve. Low-pressure gas passes through the safety valve to deliver the rust inhibitor in the rust inhibitor canister to the rust inhibitor spray gun and spray it onto the surface of the workpiece.

[0012] The abrasive supply system includes an abrasive tank and an abrasive valve. Low-pressure air is split into two paths through a three-way connector. One path enters the upper part of the abrasive tank, pushing the abrasive in the tank downwards to the inlet of the abrasive valve, and then into the abrasive mixing chamber. At the same time, the other path of low-pressure air enters the abrasive conveying pipeline through the abrasive mixing chamber, generating negative pressure in the abrasive mixing chamber. Under the influence of negative pressure, the weight of the abrasive, and the pushing action of the low-pressure air, the abrasive continuously enters the abrasive mixing chamber from the outlet of the abrasive valve and then enters the abrasive conveying pipeline, thus supplying the abrasive to the spray gun in a uniform and stable state in the abrasive conveying pipeline.

[0013] The cleaning agent system includes a cleaning agent tank and a cleaning agent delivery pipeline. The cleaning agent in the cleaning agent tank is connected to the water supply pump on the low-pressure water pipeline through a T-connector. The low-pressure water after adding the cleaning agent is delivered to the inlet chamber of the high-pressure pump, pressurized, and then delivered to the spray gun to spray the cleaning agent onto the surface of the workpiece.

[0014] The electrical control system includes a PLC controller and a human-machine interface (HMI), which is equipped with a touch screen and operation buttons.

[0015] The bottom of the main unit frame is equipped with casters.

[0016] The beneficial effects of this invention are as follows: The hydrocarbon crystal abrasive jet of this invention uses high-pressure gas to accelerate the abrasive, which will not cause corrosion or oxidation to various metal and non-metal materials, and will not dissolve, swell, or embrittle most plastics and rubbers. It has a wide range of applications and good cleaning effect, making it a beneficial alternative and supplementary technology to traditional sandblasting and chemical cleaning. The hydrocarbon crystal abrasive is recyclable, and sodium bicarbonate is soluble in water, eliminating the need for conventional subsequent abrasive filtration and separation operations. The subsequent processing is relatively simple, the difficulty is reduced, and the overall cost of use is low. The three-phase jet spray gun of this device can perform three-phase jet cleaning of high-pressure gas, water, and abrasive. With a front-mounted air-water nozzle, it can also perform two-phase jet cleaning of high-pressure gas pushing high-pressure water. It is convenient and flexible to use, improving the cleaning capacity and cleaning effect of the device. The water forms an ultra-fine water mist in the cleaning area, which plays a good role in dust suppression. It is harmless to the operator's health and does not cause secondary pollution. At the same time, it transfers kinetic energy to the abrasive, accelerating the abrasive. The water consumption during the cleaning process is small, which is energy-saving and environmentally friendly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram illustrating the working principle of the device of the present invention;

[0019] In the diagram: 1-Water supply and filtration system; 11-Water supply pump; 12-Filter; 13-Water tank; 14-Quick connector; 15-Tap water; 2-High-pressure water system; 21-High-pressure pump; 22-Overflow valve; 23-High-pressure water solenoid valve; 3-Main unit frame; 4-Abrasive supply system; 41-Abrasive tank; 42-Abrasive valve; 43-T-connector; 44-Abrasive mixing chamber; 5-Rust inhibitor system; 51-Rust inhibitor tank; 52-Rust inhibitor spray gun; 53-Safety valve; 6-Compressor system; 61-High-pressure compressor; 62-Gas cylinder; 63-Pressure reducing valve; 64-Stop valve; 7-Cleaning agent system; 71-Cleaning agent tank; 8-Electrical control system; 9-Spray gun;

[0020] The following will describe in detail, with reference to the accompanying drawings, embodiments of the invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] A hydrocarbon abrasive surface treatment device includes a main frame 3 and a water supply and filtration system 1, an abrasive supply system 4, a rust inhibitor system 5, a cleaning agent system 7, a compressor system 6, an electrical control system 8, and a spray gun 9, all mounted on the main frame 3. The water supply and filtration system 1 includes a low-pressure water supply and filtration system and a high-pressure water system 2. The low-pressure water supply and filtration system supplies water to the high-pressure water system 2 and ensures the water supply pressure. The high-pressure water system 2 provides high-pressure water to the spray gun 9. The compressor system 6 directly compresses free air to a gauge pressure ≤30MPa through multi-stage compression to provide a high-pressure air source for the spray gun 9. The abrasive supply system 4 uses filtered low-pressure air to supply hydrocarbon abrasive in a suspended state to the spray gun 9 evenly and stably through the abrasive delivery pipeline. After the workpiece is cleaned, the rust inhibitor system 5 uses low-pressure air to deliver the rust inhibitor in the rust inhibitor tank 51 to the rust inhibitor spray gun 52 and spray it onto the workpiece surface. The cleaning agent system 7 is added to the water supply and filtration system 1 and sprayed onto the workpiece surface after being pressurized. The electrical control system 8 controls the water supply and filtration system 1, the abrasive supply system 4, the rust inhibitor system 5, the cleaning agent system 7, the compressor system 6, and the spray gun 9 through a PLC controller.

[0023] The low-pressure water supply filtration system includes a water supply pump 11, a filter 12, a water tank 13, and a low-pressure water pipeline. The filter 12, water tank 13, and water supply pump 11 are connected sequentially to the low-pressure water pipeline. The low-pressure water pipeline is connected to the tap water 15 via a quick connector 14. After passing through the water supply pump 11, the low-pressure water pipeline is connected to the high-pressure pump 21 of the high-pressure water system 2. After passing through the high-pressure pump 21, the high-pressure water pipeline of the high-pressure water system 2 is sequentially connected to an overflow valve 22 and a high-pressure water solenoid valve 23. The low-pressure water is pressurized by the high-pressure pump 21 and then transported to the spray gun 9 through the high-pressure water pipeline via the high-pressure water solenoid valve 23. The high-pressure water is connected from the overflow valve 22 to a branch drain pipe to the water tank 13. The low-pressure water supply filtration system supplies water to the high-pressure pump 21 and ensures the required water supply pressure, which is ≥0.30MPa. The high-pressure water system 2 provides high-pressure water to the spray gun 9, at which point the high-pressure water pressure is ≤11MPa, and the system flow rate can be controlled and adjusted by the electrical control system 8.

[0024] The compressor system 6 includes a high-pressure compressor 61, a gas cylinder 62, a pressure reducing valve 63, a shut-off valve 64, and a gas delivery pipeline. Before entering the gas delivery pipeline, the air passes through a separator, a filter, and a cooler in sequence, providing a high-pressure gas source for the entire device with a pressure ≤30MPa. The free air is directly compressed to compressed air with a gauge pressure ≤30MPa through multi-stage compression. The clean and odorless gas, after being removed from oil and impurities, is compressed by the high-pressure compressor 61 and stored in the gas cylinder 62. The gas delivery pipeline is then connected to the spray gun 9 through the pressure reducing valve 63, providing the spray gun 9 with high-pressure gas ≤10MPa. Another gas delivery pipeline connected to the pressure reducing valve 63 delivers low-pressure gas to the rust inhibitor system 5 and the abrasive supply system 4 through the pressure reducing valve 63 and the shut-off valve 64.

[0025] The rust inhibitor system 5 includes a rust inhibitor tank 51, a rust inhibitor spray gun 52, and a safety valve 53. Low-pressure gas passes through the safety valve 53 to deliver the rust inhibitor in the rust inhibitor tank 51 to the rust inhibitor spray gun 52 and spray it onto the surface of the workpiece to prevent rust on the workpiece surface.

[0026] The abrasive supply system 4 includes an abrasive tank 41 and an abrasive valve 42. Low-pressure air is split into two paths through a three-way connector 43. One path (pressure 0.2MPa to 0.3MPa) enters the upper part of the abrasive tank 41, pushing the abrasive in the tank 41 downward to the inlet end of the abrasive valve 42, and then into the abrasive mixing chamber 44. At the same time, the other path of low-pressure air enters the abrasive conveying pipeline through the abrasive mixing chamber 44, generating a negative pressure in the abrasive mixing chamber 44. Under the action of negative pressure, the weight of the abrasive, and the pushing action of the low-pressure air, the abrasive continuously enters the abrasive mixing chamber 44 from the outlet end of the abrasive valve 42 and then enters the abrasive conveying pipeline. It is suspended in the abrasive conveying pipeline and supplies abrasive to the spray gun 9 evenly and stably. The abrasive supply amount can be adjusted by the abrasive valve 42.

[0027] The cleaning agent system 7 includes a cleaning agent tank 71 and a cleaning agent delivery pipeline. The cleaning agent in the cleaning agent tank 71 is connected to the water supply pump 11 on the low-pressure water pipeline through a T-connector. The low-pressure water after adding the cleaning agent is delivered to the inlet chamber of the high-pressure pump 21, pressurized, and then delivered to the spray gun 9 to spray the cleaning agent onto the surface of the workpiece, so that the dirt is fully dissolved before cleaning, ensuring the cleaning effect.

[0028] The bottom of the main unit frame 3 is equipped with casters.

[0029] The electrical control system includes a PLC controller and a human-machine interface (HMI). The HMI is equipped with a touch screen and operation buttons. The PLC is a Siemens SIMATIC S7-1200 system. Parameters such as water pressure and abrasive supply rate are set via the touch screen. The PLC detects safety conditions, such as whether the air pressure is up to standard and whether the water level in water tank 13 is normal. After pressing the spray gun 9 switch, the PLC sequentially starts the compressor 61, water pump 11, and abrasive supply system 4, and opens the high-pressure water solenoid valve 23. The electrical control system provides interlock protection. If the air pressure is lower than the set value, the PLC automatically closes the abrasive valve 42 and alarms. When the overflow valve 22 is triggered, the PLC stops the high-pressure pump 21 and switches the drain pipe. According to the settings on the touch screen, the PLC mixes the cleaning agent and low-pressure water in proportion. After the spray gun 9 finishes cleaning, the PLC starts the rust inhibitor system 5, spraying the rust inhibitor through low-pressure air.

[0030] The invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution, or direct application to other situations without modification, are all within the scope of protection of the invention.

Claims

1. A hydrocarbon abrasive surface treatment device, characterized in that, The system includes a main frame (3) and a water supply and filtration system (1), abrasive supply system (4), rust inhibitor system (5), cleaning agent system (7), compressor system (6), electrical control system (8), and spray gun (9) mounted on the main frame (3). The water supply and filtration system (1) includes a low-pressure water supply and filtration system and a high-pressure water system (2). The low-pressure water supply and filtration system supplies water to the high-pressure water system (2) and ensures the water supply pressure. The high-pressure water system (2) provides high-pressure water to the spray gun (9). The compressor system (6) directly compresses free air to compressed air with a gauge pressure ≤30MPa through multi-stage compression to provide a high-pressure air source for the spray gun (9). The abrasive supply system (6) is also included. The system (4) uses filtered low-pressure air to supply hydrocarbon abrasive in the abrasive tank to the spray gun (9) in a suspended state through the abrasive delivery pipeline in a uniform and stable manner. After the workpiece is cleaned, the rust inhibitor system (5) uses low-pressure air to deliver the rust inhibitor in the rust inhibitor tank (51) to the rust inhibitor spray gun (52) and spray it onto the surface of the workpiece. The cleaning agent system (7) is added to the water supply and filtration system (1) and sprayed onto the surface of the workpiece after being pressurized. The electrical control system (8) controls the water supply and filtration system (1), abrasive supply system (4), rust inhibitor system (5), cleaning agent system (7), compressor system (6) and spray gun (9) through the PLC controller.

2. The hydrocarbon abrasive surface treatment device according to claim 1, characterized in that, The low-pressure water supply filtration system includes a water supply pump (11), a filter (12), a water tank (13), and a low-pressure water pipeline. The filter (12), the water tank (12), and the water supply pump (11) are connected to the low-pressure water pipeline in sequence. The low-pressure water pipeline is connected to the tap water (15) through a quick connector (14). After passing through the water supply pump (11), the low-pressure water pipeline is connected to the high-pressure pump (21) of the high-pressure water system (2). After passing through the high-pressure pump (21), the high-pressure water pipeline of the high-pressure water system (2) is connected to the overflow valve (22) and the high-pressure water solenoid valve (23) in sequence. The low-pressure water is pressurized by the high-pressure pump (21) and then transported to the spray gun (9) through the high-pressure water pipeline via the high-pressure water solenoid valve (23). The high-pressure water is connected to the water tank (13) through the branch drain pipe from the overflow valve (22).

3. The hydrocarbon abrasive surface treatment device according to claim 2, characterized in that, The compressor system (6) includes a high-pressure compressor (61), a gas cylinder (62), a pressure reducing valve (63), a shut-off valve (64), and a gas delivery pipeline. Before entering the gas delivery pipeline, the air passes through a separator, a filter, and a cooler in sequence. The clean and odorless gas, after being de-oiled and impurities removed, is compressed by the high-pressure compressor (61) and stored in the gas cylinder (62). The gas delivery pipeline is then connected to the spray gun (9) through the pressure reducing valve (63). Another gas delivery pipeline connected to the pressure reducing valve (63) delivers low-pressure gas to the rust inhibitor system (5) and the abrasive supply system (4) through the pressure reducing valve (63) and the shut-off valve (64).

4. The hydrocarbon abrasive surface treatment apparatus according to claim 3, characterized in that, The rust inhibitor system (5) includes a rust inhibitor canister (51), a rust inhibitor spray gun (52), and a safety valve (53). After passing through the safety valve (53), the low-pressure gas delivers the rust inhibitor in the rust inhibitor canister (51) to the rust inhibitor spray gun (52) and sprays it onto the surface of the workpiece.

5. The hydrocarbon abrasive surface treatment apparatus according to claim 4, characterized in that, The abrasive supply system (4) includes an abrasive tank (41) and an abrasive valve (42). Low-pressure gas is split into two paths through a three-way connector (43). One path of gas enters the upper part of the abrasive tank (41) and pushes the abrasive in the abrasive tank (41) downward to the inlet end of the abrasive valve (42) and then into the abrasive mixing chamber (44). At the same time, the other path of low-pressure gas enters the abrasive conveying pipeline through the abrasive mixing chamber (44) and generates negative pressure in the abrasive mixing chamber (44). Under the action of negative pressure, the weight of the abrasive and the pushing action of low-pressure gas, the abrasive continuously enters the abrasive mixing chamber (44) from the outlet end of the abrasive valve (42) and then enters the abrasive conveying pipeline, so as to supply abrasive to the spray gun (9) in a suspended state in the abrasive conveying pipeline.

6. The hydrocarbon abrasive surface treatment apparatus according to claim 5, characterized in that, The cleaning agent system (7) includes a cleaning agent tank (71) and a cleaning agent delivery pipeline. The cleaning agent in the cleaning agent tank (71) is connected to the water supply pump (11) on the low-pressure water pipeline through a three-way pipe. The low-pressure water after adding the cleaning agent is delivered to the liquid inlet chamber of the high-pressure pump (21) for pressurization and then delivered to the spray gun (9) to spray the cleaning agent onto the surface of the workpiece.

7. The hydrocarbon abrasive surface treatment apparatus according to claim 6, characterized in that, The electrical control system includes a PLC controller and a human-machine interface (HMI), which is equipped with a touch screen and operation buttons.

8. The hydrocarbon abrasive surface treatment apparatus according to claim 1, characterized in that, The bottom of the main frame (3) is equipped with casters.

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