Plasma-based deacidification device and method

Abstract

The invention belongs to the technical field of deacidification, and particularly discloses a plasma-based deacidification device and method.The plasma-based deacidification device comprises a box body, a spraying deacidification assembly, a fixing assembly and a mist absorption assembly are sequentially arranged in the box body from top to bottom, and a monitoring control assembly is arranged on the outer wall of the box body; the monitoring control assembly is electrically connected with the spraying deacidification assembly, the fixing assembly and the mist absorption assembly. According to the plasma-based deacidification device and method, non-contact deacidification treatment is adopted, physical damage to articles is avoided, uniformity is high, the service life of the articles is protected, and the service life of the articles is prolonged; the plasma power and gas flow parameters can be adjusted according to different materials (paper, textiles, leather, metal, ceramics and the like) and deacidification requirements, the use amount of deacidification liquid is further reduced, and efficient and low-cost deacidification treatment is carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of deacidification, and in particular to a plasma-based deacidification device and method. Background Art

[0002] Deacidification technology is an important means in many aspects such as chemical engineering. Traditional deacidification technology usually requires a lot of energy to maintain the temperature and pressure conditions required for chemical reactions, requires expensive catalysts and chemical additives, and has high maintenance costs. Especially when treating low-concentration acidic gases, the efficiency of traditional deacidification technology decreases significantly.

[0003] Plasma technology has attracted wide attention as a new deacidification method. Plasma is a gas composed of ions, electrons and neutral particles, which can occur at room temperature, so it is called non-thermal plasma. Through low-temperature plasma surface treatment technology, a variety of physical and chemical changes occur on the surface of the material, or it is etched and roughened, or a dense cross-linked layer is formed, or oxygen-containing polar groups are introduced, so that the hydrophilicity, adhesion, dyeability, biocompatibility and electrical properties are improved respectively.

[0004] In the existing technology, in low-temperature plasma surface treatment technology, the energy of particles is generally about several to dozens of electron volts, which is greater than the bonding energy of polymer materials (several to dozens of electron volts), and can completely break the chemical bonds of organic macromolecules to form new bonds; but it is far lower than high-energy radioactive rays, only involving the surface of the material, and does not affect the performance of the substrate. However, there are still problems with deacidification uniformity, equipment life and system integration. Summary of the invention

[0005] The purpose of the present invention is to provide a plasma-based deacidification device and method, which adopts non-contact deacidification treatment, does not cause physical damage to the article, and has high uniformity to protect and extend the life of the article. The plasma power and gas flow parameters can be adjusted according to different materials (paper, textiles, leather, metals and ceramics, etc.) and deacidification requirements, further reducing the amount of deacidification liquid used, and performing efficient and low-cost deacidification treatment. .

[0006] To achieve the above object, the present invention provides a plasma-based deacidification device, comprising a box body, wherein a spray deacidification component, a fixing component and a mist absorption component are sequentially arranged inside the box body from top to bottom, and a monitoring and control component is arranged on the outer wall of the box body, and the monitoring and control component is electrically connected to the spray deacidification component, the fixing component and the mist absorption component respectively;

[0007] The spraying deacidification component includes a three-axis guide rail and a spraying structure arranged on the three-axis guide rail, the spraying structure is connected to a plasma power supply and a deacidification liquid tank, the fixed component includes a pressing plate and a vacuum suction device arranged on the surface of the pressing plate, and the deacidification liquid tank is arranged on the lower surface of the pressing plate.

[0008] Preferably, the monitoring and control component includes a control display, a gravity detection meter, a digital pressure gauge and a mechanical switch, the mechanical switch includes an emergency stop button, a power switch, and a weight reset switch, the digital pressure gauge has a built-in pressure sensor and a temperature sensor, the pressure sensor and the temperature sensor are both connected to the interior of the box, the gravity detection meter is electrically connected to the deacidification liquid box, and the control display is electrically connected to the plasma power supply, the three-axis guide rail, the spray structure, the mist suction fan and the heat dissipation fan.

[0009] Preferably, the spraying structure includes a first nozzle and a second nozzle, the first nozzle is connected to the deacidification liquid tank through a liquid guide tube, the second nozzle is connected to the plasma power supply through a pipeline, the deacidification liquid tank is connected to a pump body, the liquid guide tube is fixedly connected to the first nozzle through a spray shaft, and the pipeline is movably connected to the second nozzle through a transmission shaft.

[0010] Preferably, the first nozzle is an atomizing nozzle, and the rotation speed of the first nozzle is 3000r / min.

[0011] Preferably, the three-axis guide includes an X-axis linear guide, a Y-axis linear guide and a Z-axis linear guide, the Y-axis linear guide is slidably connected to the X-axis linear guide, the Z-axis linear guide is slidably connected to the Y-axis linear guide, the spray axis is slidably connected to the Y-axis linear guide, and the second nozzle is slidably connected to the Z-axis linear guide.

[0012] Preferably, the X-axis linear guide has a lead of 10 mm and a pulse number of 2000 P / R for one rotation, the Y-axis linear guide has a lead of 96 mm and a pulse number of 16000 P / R for one rotation, the spray shaft has a lead of 125 mm and a pulse number of 1600 P / R for one rotation, and the transmission shaft has a lead of 125 mm and a pulse number of 2400 P / R for one rotation.

[0013] Preferably, the outer wall of the box is provided with a visual window door, and the top of the box is provided with a three-color light, and the three-color light has a built-in alarm.

[0014] Preferably, the mist absorption component includes a mist suction fan, both sides of the mist suction fan are connected to mist suction fans through a first air duct, the mist suction fan is located above the pressure plate, the mist suction fan is connected to the outside through a second air duct, and a cooling fan corresponding to the first air duct is provided on the outer wall of the box body.

[0015] Preferably, the vacuum suction device is connected to an air source through an air pipe, and the pressure range of the air source is 2.5-3.5 KG*f / cm 2 .

[0016] To achieve the above object, the present invention provides a method for using a plasma-based deacidification device, comprising the following steps:

[0017] S1. Open the visual window door, place the object to be deacidified on the surface of the pressing plate and then close the visual window door;

[0018] S2. Press the power switch to start the equipment, start the weight detection meter and digital pressure gauge through the control display, accurately judge the amount of deacidification liquid used, the operating parameters of the plasma power supply and the operating parameters of the three-axis guide rail according to the size and quality of the items to be deacidified, and record the amount of deacidification liquid added and the weight change of the items to be deacidified before and after deacidification, monitor the temperature and pressure in the box and issue an early warning through the three-color light;

[0019] S3, start the gas source, pump body and plasma power supply through the control display, control the plasma flame width of the second nozzle to be 50mm, the sliding speed of the X-axis linear guide and the Y-axis linear guide to be 0-200mm / s, and the spray axis moves along the X-axis linear guide to 150mm away from the spray point. The deacidification liquid and plasma react on the surface of the deacidified object to generate acid mist;

[0020] S4, starting the mist suction fan and the heat dissipation fan by controlling the display, the mist suction fan transfers the acid mist generated by the deacidification reaction to the outside through the first air duct and the second air duct in sequence to maintain the air flow balance inside the box, and the heat dissipation fan reduces the temperature near the first air duct to dissipate the heat generated inside the box;

[0021] S5. After the deacidification reaction is completed, turn off the gas source, pump body and plasma power supply, three-axis guide rail, mist suction fan and cooling fan in sequence, open the visual window door, and take out the deacidified items.

[0022] Therefore, the present invention adopts the above-mentioned plasma-based deacidification device and method, and the beneficial effects are as follows:

[0023] (1) Compared with the traditional deacidification technology, the present invention reduces the amount of deacidification liquid used and does not require expensive catalysts and chemical additives. The plasma deacidification machine can complete the deacidification process faster, perform efficient and low-cost deacidification treatment, and effectively neutralize the acidic substances on the surface of the object. The pH value of the paper after plasma deacidification can be increased from 4.1 to 6.8 to 7.4 to 8.9, extending its shelf life. In addition, the objects after plasma deacidification can be deacidified again in the future to cope with new acidic environments.

[0024] (2) The present invention uses plasma and atomized deacidification liquid to act on the surface of the object to be deacidified at the same time. The non-contact deacidification treatment will not cause physical damage to the object and has high uniformity to protect and extend the life of the object. At the same time, the plasma power and gas flow parameters can be adjusted according to different materials (paper, textiles, leather, metals and ceramics, etc.) and deacidification requirements.

[0025] (3) The present invention adopts a mist suction fan and a heat dissipation fan, which automatically adjust the air volume according to the working status of the equipment, timely discharge the acid mist in the box and control the temperature inside the box. The spray deacidification component, the fixed component and the mist absorption component are compatible with each other, ensuring the stable operation of the equipment, extending the life of the equipment and solving the system integration problem.

[0026] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a front view of an embodiment of a plasma-based deacidification device of the present invention;

[0028] Figure 2 is an internal schematic diagram of an embodiment of a plasma-based deacidification device of the present invention;

[0029] Figure 3 is a rear view of an embodiment of a plasma-based acid removal device of the present invention;

[0030] Figure 4 It is a structural schematic diagram of a spraying structure of an embodiment of a plasma-based deacidification device of the present invention.

[0031] Reference numerals

[0032] 1. Box body; 2. Plasma power supply; 3. Deacidification liquid box; 4. X-axis linear guide; 5. Y-axis linear guide; 6. Z-axis linear guide; 7. Spray shaft; 8. First nozzle; 9. Second nozzle; 10. Liquid guide tube; 11. Pipeline; 12. Transmission shaft; 13. Press plate; 14. Vacuum suction device; 15. Defogging fan; 16. First air duct; 17. Defogging fan; 18. Second air duct; 19. Cooling fan; 20. Control display; 21. Gravity detection meter; 22. Digital pressure gauge; 23. Emergency stop button; 24. Power switch; 25. Weight reset switch; 26. Visual window door; 27. Three-color light. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0034] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0035] Embodiment 1

[0036] A plasma-based deacidification device comprises a housing 1, wherein a spray deacidification component, a fixing component and a mist absorption component are sequentially arranged inside the housing 1 from top to bottom, and a monitoring and control component is arranged on the outer wall of the housing 1, wherein the monitoring and control component is electrically connected to the spray deacidification component, the fixing component and the mist absorption component respectively.

[0037] The spraying deacidification assembly includes a three-axis guide rail and a spraying structure arranged on the three-axis guide rail, and the spraying structure is connected to a plasma power supply 2 and a deacidification liquid tank 3. The plasma power supply 2 is responsible for providing stable and controllable electric energy to generate and maintain plasma. The deacidification liquid tank 3 is used to store alkaline deacidification liquid.

[0038] The three-axis guide includes an X-axis linear guide 4, a Y-axis linear guide 5 and a Z-axis linear guide 6. The X-axis linear guide 4, the Y-axis linear guide 5 and the Z-axis linear guide 6 all include guide rails, sliders, motors and other transmission components to ensure smooth operation and precise control of the three-axis guide.

[0039] Specifically, the Y-axis linear guide 5 is slidably connected to the X-axis linear guide 4, the Z-axis linear guide 6 is slidably connected to the Y-axis linear guide 5, the spray shaft 7 is slidably connected to the Y-axis linear guide 5, and the second nozzle 9 is slidably connected to the Z-axis linear guide 6. The moving speed on the Y-axis linear guide 5 is 0 to 200 mm / s, which controls the movement of the spray shaft 7 and the Z-axis linear guide 6. The X-axis linear guide 4 is perpendicular to the Y-axis linear guide 5, and accurately controls the movement of the second nozzle 9 to ensure that the plasma can evenly cover the entire processing area.

[0040] The X-axis linear guide 4 rotates one circle with a lead of 10 mm and a pulse number of 2000 P / R, the Y-axis linear guide 5 rotates one circle with a lead of 96 mm and a pulse number of 16000 P / R, and the spray axis 7 rotates one circle with a lead of 125 mm and a pulse number of 1600 P / R.

[0041] The spraying structure includes a first nozzle 8 and a second nozzle 9. The first nozzle 8 is connected to the deacidification liquid tank 3 through a liquid guide tube 10. The deacidification liquid tank 3 is connected to a pump body, and the pump body transports the liquid in the deacidification liquid tank 3 to the first nozzle 8 along the liquid guide tube 10. The liquid guide tube 10 is fixedly connected to the first nozzle 8 through the spray shaft 7. The first nozzle 8 adopts an atomizing nozzle, and the rotation speed of the first nozzle 8 is 3000r / min. The first nozzle 8 has a unique design, including a speed monitoring hole, a speed sensor and a nozzle, etc. The size and connection part of the nozzle are compatible with other components of the equipment to ensure easy installation and sealing. The adjustable nozzle is designed to adjust the spray flow and direction under different process conditions, and the deacidification liquid is evenly sprayed on the surface of the artwork or cultural relic in an atomized form to achieve deacidification treatment.

[0042] During the deacidification process, the acidic substances are converted into droplets or other forms of by-products. The nozzle sprays the liquid through a high-pressure gas source. The nozzle shape can be selected in different sizes according to the needs. It can effectively mix the gas and liquid to form fine droplets, so that the droplets can be evenly distributed, ensuring that the deacidification effect is uniform and effective, avoiding the problem of uneven deacidification that may be caused by traditional manual spraying.

[0043] The second nozzle 9 is connected to the plasma power supply 2 through the pipeline 11, and the pipeline 11 is movably connected to the second nozzle 9 through the transmission shaft 12. The transmission shaft 12 rotates one circle with a lead of 125mm and a pulse number of 2400P / R. The second nozzle 9 adjusts the height distance from the surface of the object to be treated through the Z-axis linear guide 6 to adapt to objects of different thicknesses and produce active particles that can react with acidic substances. The second nozzle 9 is perpendicular to the surface of the deacidified object, and an oblique angle can be selected in some cases. The plasma can interrupt the impurities adsorbed on the fiber surface of the deacidified object and expose the hydroxyl groups in the cellulose molecules, thereby improving the hydrophilicity and wettability of the deacidified object, so that the alkaline deacidification component can penetrate deeper into the fiber.

[0044] The fixing assembly includes a pressing plate 13 and a vacuum gripper 14 disposed on the surface of the pressing plate 13. The vacuum gripper 14 is connected to a gas source through an air pipe. Usually, an inert gas such as argon or nitrogen is used. These gases are harmless to the environment and will not produce harmful byproducts during the processing. The pressure range of the gas source is 2.5 to 3.5 KG*f / cm 2 The deacidification liquid tank 3 is disposed on the lower surface of the pressing plate 13, so as to facilitate monitoring of the weight of the deacidification liquid tank 3, the pressing plate 13, the vacuum suction device 14 and the deacidified articles.

[0045] The mist absorption component includes a mist suction fan 15, both sides of the mist suction fan 15 are connected to a mist suction fan 17 through a first air duct 16, the mist suction fan 17 is located above the pressure plate 13, and the mist suction fan 15 is connected to the outside world through a second air duct 18. The mist suction fan 15 is responsible for sucking the mist droplets generated by the deacidification reaction from the treatment area, helping to maintain the air flow balance inside the system and ensuring that the plasma can evenly contact the acidic substance. In addition, the mist suction fan 15 adopts a triple filter element design to effectively filter and absorb the deacidification liquid to ensure that the discharged gas meets environmental protection requirements.

[0046] A cooling fan 19 corresponding to the first air duct 16 is provided on the outer wall of the box body 1. The cooling fan 19 is close to the first nozzle and other components that generate a large amount of heat to effectively discharge the heat. The cooling fan 19 has high durability and corrosion resistance, can adapt to different environmental conditions, such as temperature, humidity and dust, etc., and can automatically adjust the air volume according to the working state of the equipment, further improve the working efficiency, and ensure the stable operation of the plasma deacidification machine.

[0047] The monitoring and control components include a control display 20, a gravity detection meter 21, a digital pressure gauge 22 and a mechanical switch, and the use range is three-phase AC380V (±10V), and the power is 5000W. The digital pressure gauge 22 is built with a pressure sensor and a temperature sensor, and the pressure sensor and the temperature sensor are both connected to the inside of the box 1, and can accurately and real-time display the pressure value and temperature value in the box 1. The gravity detection meter 21 is electrically connected to the deacidification liquid box 3, and the weight detection meter adjusts the operating parameters of the equipment, including gas flow, processing time and power, etc., and it regularly diagnoses the wear and failure of the equipment, tracks the use of materials to ensure the normal operation of the equipment and ensure that the weight of the materials meets the process requirements, and records the amount of deacidification liquid added and the weight change of the paper before and after deacidification, so as to evaluate whether the deacidification effect is uniform and thorough.

[0048] The mechanical switch is located below the touch control display 20. The mechanical switch includes an emergency stop button 23, a power switch 24, and a weight reset switch 25. The power switch 24 is used to start the equipment. The emergency stop button 23 is used in an emergency and has an overheat protection function to ensure the safety of the operator. The weight reset switch 25 is used to measure and calibrate the weight of the paper before and after the deacidification treatment. The control display 20 is electrically connected to the plasma power supply 2, the three-axis guide rail, the spraying structure, the mist suction fan 15 and the heat dissipation fan.

[0049] The outer wall of the box 1 is provided with a visual window door 26 for placing the items to be processed, allowing the operator to observe the deacidification process inside without opening the box 1. A three-color light 27 is provided on the top of the box 1. The three-color light 27 has a built-in alarm. The "red light" represents equipment failure or emergency, the "yellow light" reminds the operator to pay attention, and the "green light" indicates that the equipment is operating normally. The three-color light 27 is integrated on the control display 20, so that the operator can intuitively see the operating status of the equipment when operating the equipment. The alarm is electrically connected to the digital pressure gauge 22, and an alarm is issued when a specific pressure value is reached, thereby increasing the safety of the operation.

[0050] Embodiment 2

[0051] A method for using a plasma-based deacidification device comprises the following steps:

[0052] S1. Open the visual window door 26, place the object to be deacidified on the surface of the pressing plate 13, and then close the visual window door 26.

[0053] S2, press the power switch 24 to turn on the equipment, start the weight detection meter and the digital pressure gauge 22 by controlling the display 20, accurately judge the amount of deacidification liquid used, the operating parameters of the plasma power supply 2 and the operating parameters of the three-axis guide rail (processing time) according to the size and quality of the deacidification items, the first time the equipment is turned on, the equipment needs to find the origin position of each of the three-axis guide rails, and find the origin in the order of the X-axis linear guide rail 4, the Y-axis linear guide rail 5, the Z-axis linear guide rail 6 and the spray axis 7. At the same time, record the amount of deacidification liquid added and the weight change of the deacidification items before and after deacidification, monitor the temperature and pressure in the box 1 and give an early warning through the three-color light 27.

[0054] S3, start the gas source, pump body and plasma power supply 2 by controlling the display 20, control the plasma flame width of the second nozzle 9 to be 50mm, and other movement parameters of the second nozzle 9: the total travel distance in the direction of the Y-axis linear guide 5 is 480mm, and the total travel distance in the direction of the X-axis linear guide 4 is 350mm. The sliding speed of the X-axis linear guide 4 and the Y-axis linear guide 5 is 0-200mm / s, the spray axis 7 moves along the direction of the X-axis linear guide 4 to 150mm from the spray point, and the total travel distance of the spray axis 7 along the direction of the Y-axis linear guide 5 is 465mm, and the deacidification liquid and plasma react on the surface of the deacidified object to generate acid mist.

[0055] S4. Start the mist suction fan 15 and the heat dissipation fan 19 by controlling the display 20. The mist suction fan 17 transfers the acid mist generated by the deacidification reaction to the outside through the first air duct 16 and the second air duct 18 in sequence to maintain the air flow balance inside the box 1. The heat dissipation fan 19 reduces the temperature near the first air duct 16 to dissipate the heat generated inside the box 1.

[0056] S5, after the deacidification reaction is completed, turn off the gas source, pump body and plasma power supply 2, three-axis guide rail, mist suction fan 15 and cooling fan 19 in sequence, open the visual window door 26, and take out the deacidified items.

[0057] Experimental Testing

[0058] Different old papers (old newspapers) and textiles were used for deacidification treatment. The pH value of paper increased from 4.1-6.8 to 7.4-8.9, and the pH value of textiles increased from 6.0 to 7.9. The specific test results are shown in Table 1.

[0059] Table 1 Test results statistics

[0060]

[0061]

[0062] Therefore, the present invention adopts the above-mentioned plasma-based deacidification device and method, adopts non-contact deacidification treatment, will not cause physical damage to the objects, and has high uniformity to protect and extend the life of the objects. The plasma power and gas flow parameters can be adjusted according to different materials (paper, textiles, leather, metals and ceramics, etc.) and deacidification requirements, further reducing the use of deacidification liquid and performing efficient and low-cost deacidification treatment.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A plasma-based deacidification device, characterized in that: It comprises a box body, wherein a spraying deacidification component, a fixing component and a mist absorption component are sequentially arranged inside the box body from top to bottom, and a monitoring control component is arranged on the outer wall of the box body, and the monitoring control component is electrically connected to the spraying deacidification component, the fixing component and the mist absorption component respectively; The spraying deacidification component includes a three-axis guide rail and a spraying structure arranged on the three-axis guide rail, the spraying structure is connected to a plasma power supply and a deacidification liquid tank, the fixed component includes a pressing plate and a vacuum suction device arranged on the surface of the pressing plate, and the deacidification liquid tank is arranged on the lower surface of the pressing plate.

2. A plasma-based deacidification device and method according to claim 1, characterized in that: The monitoring and control component includes a control display, a gravity detection meter, a digital pressure gauge and a mechanical switch. The mechanical switch includes an emergency stop button, a power switch, and a weight reset switch. The digital pressure gauge has a built-in pressure sensor and a temperature sensor. The pressure sensor and the temperature sensor are both connected to the interior of the box. The gravity detection meter is electrically connected to the deacidification liquid box. The control display is electrically connected to the plasma power supply, the three-axis guide rail, the spray structure, the mist suction fan and the heat dissipation fan.

3. A plasma-based deacidification device and method according to claim 1, characterized in that: The spraying structure includes a first nozzle and a second nozzle, the first nozzle is connected to the deacidification liquid tank through a liquid guide tube, the second nozzle is connected to the plasma power supply through a pipeline, the deacidification liquid tank is connected to a pump body, the liquid guide tube is fixedly connected to the first nozzle through a spray shaft, and the pipeline is movably connected to the second nozzle through a transmission shaft.

4. A plasma-based deacidification device and method according to claim 3, characterized in that: The first nozzle is an atomizing nozzle, and the rotation speed of the first nozzle is 3000r / min.

5. A plasma-based deacidification device and method according to claim 4, characterized in that: The three-axis guide rails include an X-axis linear guide rail, a Y-axis linear guide rail and a Z-axis linear guide rail, the Y-axis linear guide rail is slidably connected to the X-axis linear guide rail, the Z-axis linear guide rail is slidably connected to the Y-axis linear guide rail, the spray shaft is slidably connected to the Y-axis linear guide rail, and the second nozzle is slidably connected to the Z-axis linear guide rail.

6. A plasma-based deacidification device and method according to claim 5, characterized in that: The X-axis linear guide has a lead of 10mm and a pulse number of 2000P / R for one rotation, the Y-axis linear guide has a lead of 96mm and a pulse number of 16000P / R for one rotation, the spray shaft has a lead of 125mm and a pulse number of 1600P / R for one rotation, and the transmission shaft has a lead of 125mm and a pulse number of 2400P / R for one rotation.

7. A plasma-based deacidification device and method according to claim 1, characterized in that: The outer wall of the box body is provided with a visual window door, and the top of the box body is provided with a three-color light, and the three-color light has a built-in alarm.

8. A plasma-based deacidification device and method according to claim 1, characterized in that: The mist absorption component includes a mist suction fan, both sides of the mist suction fan are connected to mist suction fans through a first air duct, the mist suction fan is located above the pressure plate, the mist suction fan is connected to the outside through a second air duct, and a cooling fan corresponding to the first air duct is provided on the outer wall of the box body.

9. A plasma-based deacidification device and method according to claim 1, characterized in that: The vacuum suction device is connected to an air source through an air pipe, and the pressure range of the air source is 2.5-3.5KG*f / cm 2 .

10. A method for using the plasma-based deacidification device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Open the visual window door, place the object to be deacidified on the surface of the pressing plate and then close the visual window door; S2. Press the power switch to turn on the equipment, start the weight detection meter and digital pressure gauge through the control display, accurately judge the amount of deacidification liquid used, the operating parameters of the plasma power supply and the operating parameters of the three-axis guide rail according to the size and quality of the items to be deacidified, and record the amount of deacidification liquid added and the weight change of the items to be deacidified before and after deacidification, monitor the temperature and pressure in the box and issue an early warning through the three-color light; S3, start the gas source, pump body and plasma power supply through the control display, control the plasma flame width of the second nozzle to be 50mm, the sliding speed of the X-axis linear guide and the Y-axis linear guide to be 0-200mm / s, and the spray axis moves along the X-axis linear guide to 150mm away from the spray point. The deacidification liquid and plasma react on the surface of the deacidified object to generate acid mist; S4, starting the mist suction fan and the heat dissipation fan by controlling the display, the mist suction fan transfers the acid mist generated by the deacidification reaction to the outside through the first air duct and the second air duct in sequence to maintain the air flow balance inside the box, and the heat dissipation fan reduces the temperature near the first air duct to dissipate the heat generated inside the box; S5. After the deacidification reaction is completed, turn off the gas source, pump body and plasma power supply, three-axis guide rail, mist suction fan and cooling fan in sequence, open the visual window door, and take out the deacidified items.

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