A green printing processing apparatus and method

Abstract

The application discloses a kind of green printing processing equipment and method, belong to green printing technical field, aim at the problem that the dust flue gas purification treatment effect is poor and does not conform to the environmental protection concept of flue gas emission in printing process, including purification tank, the side wall of purification tank is communicated with air inlet pipe, the bottom surface of air inlet pipe is communicated with air inlet cover, the outside of air inlet pipe is provided with three grid filter plates that are equally spaced in up and down, three grid filter plates are fixed with the side wall of purification tank;The dust flue gas generated in the green printing process is filtered by the isolation of grid filter plate, the dust removal of water curtain settlement of grid filter plate, the rotating adsorption and rotating scraping of filter cartridge, the isolation of arc sieve plate, the activated carbon adsorption of activated carbon plate and the isolation adsorption treatment of L-shaped mounting bracket, so that the dust flue gas is more fully physically purified, and is transferred to subsequent photocatalytic electrolytic purification treatment tank by exhaust blade, to complete the chemical purification treatment of dust flue gas.

Description

Technical Field

[0001] This invention belongs to the field of green printing technology, specifically relating to a green printing processing device and method. Background Technology

[0002] Green printing refers to a printing method that uses environmentally friendly materials and processes, generates less pollution during the printing process, saves resources and energy, makes printed materials easy to recycle and reuse after disposal, is biodegradable, and has a minimal impact on the ecological environment. Green printing requires harmony with the environment, including the use of environmentally friendly printing materials, clean printing production processes, the safety of printed materials for users, and the recycling and reuse of printed materials. In other words, the entire life cycle of printed materials, from raw material selection, production, use, and recycling, should meet environmental protection requirements.

[0003] Green printing still generates a small amount of toxic printing waste gas during the printing process. Most of this waste gas is directly discharged into or outside the working environment, which can easily cause damage to the body function of users after inhalation. Therefore, it needs to be treated before it can be discharged. However, the current green printing fume treatment devices are difficult to meet the requirements of green environmental protection, and it is difficult to filter, absorb and purify the waste gas, thus making them inconsistent with the concept of green environmental protection.

[0004] Therefore, there is a need for a green printing processing equipment and method to solve the problems of poor dust and fume purification effects and non-compliance with environmental protection concepts in existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a green printing processing device and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a green printing processing device, comprising a purification chamber, an air inlet pipe connected to one side wall of the purification chamber, an air inlet hood connected to the bottom surface of the air inlet pipe, three grid filter plates equally spaced vertically on the outer side of the air inlet pipe, all three grid filter plates being fixed to the side wall of the purification chamber, an exhaust pipe connected to the top surface of the purification chamber, an exhaust blade rotatably connected to the inner wall of the top of the purification chamber below the exhaust pipe, a drive motor coaxially connected to the exhaust blade mounted on the top surface of the purification chamber, a water spray pipe fixedly passing through the center of the top surface of the purification chamber, a rotating adsorption mechanism cooperating with the drive motor being arranged around the water spray pipe, and a water curtain settling mechanism cooperating with the rotating adsorption mechanism being arranged above the grid filter plates at the top.

[0007] The solution specifies that the rotating adsorption mechanism includes four columns distributed at equal angles. All four columns are fixed to the inner top wall of the purification chamber. A limiting plate is fixed to the outer surface of all four columns. A toothed sleeve is rotatably connected to the center of the top surface of the limiting plate on the inner top wall of the purification chamber. A filter cartridge is fixed to the bottom surface of the toothed sleeve. The toothed sleeve, the filter cartridge, and the water spray pipe are coaxially arranged. A toothed ring is rotatably connected to the center of the top surface of the limiting plate on the inner top wall of the purification chamber. Multiple evenly distributed scrapers are fixed to the bottom surface of the toothed ring. A drive gear, rotatably connected to the inner top wall of the purification chamber, is provided between the toothed ring and the toothed sleeve. The outer teeth of the drive gear mesh with the toothed ring and the toothed sleeve respectively. A transmission pulley is coaxially fixed to the top of the drive gear and the exhaust blade. A transmission belt is provided on the outer surface of the two transmission pulleys.

[0008] It is further worth noting that the cross-section of the scraper is semi-elliptical, and the opposite ends of the plurality of scrapers are in contact with the outer surface of the filter cartridge.

[0009] Furthermore, it should be noted that the water curtain settling mechanism includes a liquid collection cylinder connected to the center of the bottom surface of the purification tank. The bottom end of the liquid collection cylinder is connected to a return pipe. The end of the return pipe away from the liquid collection cylinder is connected to the inner wall of the top end face of the purification tank. The bottom outer surface of the return pipe is connected to a dirt removal pipe.

[0010] In a preferred embodiment, the bottom vertical cross-section of the return pipe is U-shaped, the impurity removal pipe is located at the center of the U-shaped section of the return pipe, the grid filter plate is inclined to the side wall of the purification box, and the bottom end of the grid filter plate is provided with protrusions that are perpendicular to the inclined slope of the grid filter plate.

[0011] In a preferred embodiment, an arc-shaped sieve plate fixed to the inner wall of the purification chamber is provided on the side of the filter cartridge away from the grid filter plate, and an L-shaped mounting plate fixed to the side wall of the arc-shaped sieve plate is provided on the bottom surface of the exhaust blade. An activated carbon plate is provided between the top and bottom surfaces of the L-shaped mounting plate and the bottom inner wall of the purification chamber, and the activated carbon plate penetrates the inner wall of the end face of the purification chamber.

[0012] In a preferred embodiment, a rotating ring is fixed to the bottom surface of a plurality of scrapers, a rotating rod is fixed to the inner wall of the rotating ring, and a helical blade is fastened to the outer surface of the rotating rod.

[0013] A green printing process, based on the aforementioned green printing apparatus, includes the following steps:

[0014] S1. Dust and Fume Collection and Treatment: The fumes and dust generated by green printing are concentrated at the air inlet hood and enter the purification chamber through the air inlet pipe for centralized collection and treatment. The dust and fumes are initially isolated and filtered through the grid filter plate, forming an isolation filtration and purification treatment for dust and fumes.

[0015] S2, Rotary Adsorption Washing Treatment: Cooling water is sprayed into the water pipe to treat the inner surface of the filter cartridge, forming an isolation water film on the outer surface of the filter cartridge. The dust and flue gas that has been isolated and purified by filtration in step S1 passes through the isolation water film of the filter cartridge for isolation adsorption treatment, adsorbing and removing dust from the dust and flue gas. Through the action of the rotary adsorption mechanism, the filter cartridge and the scraper rotate in opposite directions to perform rotary scraping treatment on the dust that has been isolated and adsorbed. At the same time, through the action of the water curtain settling mechanism, the scraping liquid flows back to the top surface of the grid filter plate in step S1, and a water curtain is formed through the slope of the grid filter plate to perform settling and dust removal treatment on the dust and flue gas.

[0016] S3. Activated carbon adsorption treatment: The dust and flue gas that has been isolated and adsorbed in step S2 is screened again through the arc-shaped sieve plate. Through the wind force of the exhaust blades, the flue gas is made to pass through the activated carbon plate for activated carbon adsorption treatment, and then through the L-shaped mounting plate for final isolation adsorption treatment, thereby completing the physical purification treatment of the dust and flue gas.

[0017] S4. Photocatalytic electrolysis treatment: The dust and flue gas that have undergone physical purification in step S3 are sent into the subsequent photocatalytic electrolysis box through the exhaust pipe, so as to carry out photocatalytic electrolysis purification treatment of the flue gas. After reaching the emission standard, the flue gas is discharged into the air, thus completing the photocatalytic electrolysis purification treatment of the flue gas.

[0018] Compared with the prior art, the green printing processing equipment and method provided by the present invention have at least the following beneficial effects:

[0019] (1) Driven by the motor, the filter cartridge and scraper rotate in opposite directions, thereby improving the adsorption effect of the filter cartridge on dust and flue gas, and the scraper scrapes and removes impurities from its surface, thereby greatly improving the treatment effect of dust in the dust and flue gas. At the same time, the water curtain formed on the top surface of the grid filter plate by the liquid collection tube and the return pipe settles and removes dust, so that the dust and flue gas generated during green printing process can be filtered by the grid filter plate, the water curtain of the grid filter plate settles and removes dust, and the filter cartridge is rotated to adsorb and scrape, thereby greatly improving the purification effect of dust and flue gas.

[0020] (2) The arc-shaped screen plate can isolate the flushing liquid sprayed by the water spray pipe to a certain extent, and can also isolate and adsorb the flue gas again. The activated carbon plate performs activated carbon adsorption treatment on water vapor and flue gas, and finally performs final isolation and adsorption treatment through the L-shaped mounting plate, so that the flue gas that has undergone multiple physical purifications can be better discharged to the next process through the exhaust blade.

[0021] (3) By filtering the dust and flue gas generated during green printing through the grid filter plate, the water curtain settling dust removal of the grid filter plate, the rotating adsorption and rotating scraping of the filter cartridge, the filtering through the arc screen plate, the activated carbon adsorption of the activated carbon plate, and the filtering through the L-shaped mounting frame, the dust and flue gas undergo more thorough physical purification treatment. The gas is then transferred to the subsequent photocatalytic electrolysis purification treatment box through the exhaust blades to complete the chemical purification treatment of the dust and flue gas, thereby greatly improving the treatment effect of the dust and flue gas and achieving the green and environmentally friendly flue gas emission standards. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the exhaust pipe structure of the present invention;

[0024] Figure 3 This is a partial structural diagram of the internal structure of the purification box of the present invention;

[0025] Figure 4 This is a partial structural diagram of the rotating adsorption mechanism of the present invention;

[0026] Figure 5 This is a partial structural diagram of the rotating ring of the present invention;

[0027] Figure 6 This is a partial structural diagram of the drive gear of the present invention.

[0028] In the diagram: 1. Purification box; 2. Air inlet pipe; 3. Air inlet hood; 4. Grille filter plate; 5. Exhaust pipe; 6. Exhaust blade; 7. Drive motor; 8. Water spray pipe; 9. Rotary adsorption mechanism; 91. Column; 92. Limiting plate; 93. Toothed sleeve; 94. Filter cartridge; 95. Toothed ring; 96. Scraper; 97. Drive gear; 98. Transmission pulley; 99. Transmission belt; 10. Water curtain settling mechanism; 101. Liquid collection cylinder; 102. Return pipe; 103. Impurity removal pipe; 11. Arc-shaped sieve plate; 12. L-shaped mounting plate; 13. Activated carbon plate; 14. Rotating ring; 15. Rotating rod; 16. Spiral blade. Detailed Implementation

[0029] The present invention will be further described below with reference to embodiments.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0032] Please see Figure 1-6 This invention provides a green printing processing device, including a purification box 1. An air inlet pipe 2 is connected to one side wall of the purification box 1, and an air inlet hood 3 is connected to the bottom surface of the air inlet pipe 2. Three grid filter plates 4 are arranged vertically and equidistantly on the outer side of the air inlet pipe 2. All three grid filter plates 4 are fixed to the side wall of the purification box 1. An exhaust pipe 5 is connected to the top surface of the purification box 1. The outer end of the exhaust pipe 5 is connected to a photocatalytic electrolysis box, so that the purification box 1 performs physical purification of dust and flue gas and then performs chemical purification treatment on it. An exhaust blade 6 is arranged below the exhaust pipe 5 and is rotatably connected to the inner wall of the top of the purification box 1. A drive motor 7 is installed on the top surface of the purification box 1 and is coaxially connected to the exhaust blade 6. A water spray pipe 8 is fixedly inserted through the center of the top surface of the purification box 1. The outer end of the water spray pipe 8 is connected to a spray water supply facility. A rotating adsorption mechanism 9 that cooperates with the drive motor 7 is arranged around the water spray pipe 8. A water curtain settling mechanism 10 that cooperates with the rotating adsorption mechanism 9 is arranged above the grid filter plates 4 at the top.

[0033] Further as Figure 3 , Figure 4 and Figure 6As shown, it is worth noting that the rotating adsorption mechanism 9 includes four columns 91 distributed at equal angles. All four columns 91 are fixed to the inner top wall of the purification chamber 1. A limiting disk 92 is fixed to the outer surface of the four columns 91. A toothed sleeve 93 is rotatably connected to the center of the top surface of the limiting disk 92 at the inner top wall of the purification chamber 1. A filter cartridge 94 is fixed to the bottom surface of the toothed sleeve 93. The toothed sleeve 93, the filter cartridge 94, and the water spray pipe 8 are coaxially distributed. The inner top wall of the purification chamber 1 and the limiting disk 92 are connected... A toothed ring 95 is rotatably connected to the center of the top surface of the 2. Multiple evenly distributed scraper rods 96 are fixed on the bottom surface of the toothed ring 95. A drive gear 97 is provided between the toothed ring 95 and the toothed sleeve 93 and is rotatably connected to the inner wall of the top surface of the purification box 1. The outer teeth of the drive gear 97 are respectively meshed with the toothed ring 95 and the toothed sleeve 93. The drive gear 97 and the top of the exhaust blade 6 are respectively coaxially fixed with transmission pulleys 98. The outer surfaces of the two transmission pulleys 98 are provided with transmission belts 99.

[0034] Further as Figure 3 As shown, it is worth noting that the cross-section of the scraper 96 is semi-elliptical, and the opposite ends of the multiple scrapers 96 are in contact with the outer surface of the filter cartridge 94.

[0035] Further as Figure 1 , Figure 2 and Figure 5 As shown, it is worth noting that the water curtain settling mechanism 10 includes a liquid collection cylinder 101 connected to the center of the bottom surface of the purification tank 1. The bottom end of the liquid collection cylinder 101 is connected to a return pipe 102. The end of the return pipe 102 away from the liquid collection cylinder 101 is connected to the inner wall of the top end face of the purification tank 1. The bottom outer surface of the return pipe 102 is connected to a dirt removal pipe 103. The bottom end of the dirt removal pipe 103 is equipped with a valve, which is used to open the return pipe 102 to remove impurities. During the return process, the valve is closed to ensure that the scraping liquid in the return pipe 102 can better enter the top surface of the grid filter plate 4.

[0036] Further as Figure 2 and Figure 5 As shown, it is worth noting that the bottom vertical section of the return pipe 102 is U-shaped, the impurity removal pipe 103 is located at the center of the U-shaped section of the return pipe 102, the grid filter plate 4 is inclined to the side wall of the purification box 1, and the bottom end of the grid filter plate 4 is provided with protrusions that are perpendicular to the inclined slope of the grid filter plate 4.

[0037] This solution includes the following working process: The flue gas and dust generated during green printing are concentrated at the air intake hood 3 and enter the purification chamber 1 through the air intake pipe 2 for centralized collection and treatment. The dust and flue gas undergo preliminary isolation and filtration treatment through the grid filter plate 4, forming an isolation filtration and purification process. Cooling water is sprayed into the water spray pipe 8 to treat the inner surface of the filter cartridge 94, forming an isolation water film on the outer surface of the filter cartridge 94. The dust and flue gas pass through the isolation water film of the filter cartridge 94 for isolation and adsorption treatment, adsorbing and removing dust from the flue gas. At this time, driven by the drive motor 7, the exhaust fan rotates within the purification chamber 1. Through the transmission pulley 98 and the transmission belt 99, the drive gear 97 rotates synchronously. Since the drive gear 97 meshes with the toothed ring 95 and the toothed sleeve 93, thus... The drive gear 97 rotates in opposite directions to the toothed sleeve 93, while the toothed ring 95 rotates in the same direction as the drive gear 97. This causes the scraper 96 on the bottom surface of the toothed ring 95 and the filter cartridge 94 on the bottom surface of the toothed sleeve 93 to rotate in opposite directions. This allows the outer surface of the filter cartridge 94 to fully isolate and adsorb dust and flue gas, while the scraper 96 scrapes off its surface, greatly improving the isolation, adsorption, and scraping effect on dust and flue gas. The impurities and scraping liquid scraped off the surface of the filter cartridge 94 are collected and treated by the liquid collection tube 101 and transported to the surface of the top grid filter plate 4 through the return pipe 102, forming a water curtain on the surface of the three grid filter plates 4. This provides preliminary settling and dust removal treatment for the dust and flue gas before it reaches the filter cartridge 94, further improving the settling and dust removal effect as well as the rotation isolation, adsorption, and scraping effect on dust and flue gas.

[0038] As can be seen from the above working process: driven by the drive motor 7, the filter cartridge 94 and the scraper 96 rotate in opposite directions, thereby improving the adsorption effect of the filter cartridge 94 on dust and flue gas, and the scraper 96 scrapes and removes impurities from its surface, thereby greatly improving the treatment effect of dust in the dust and flue gas. At the same time, the water curtain formed on the top surface of the grid filter plate 4 by the liquid collection cylinder 101 and the return pipe 102 settles and removes dust, so that the dust and flue gas generated during green printing process can be filtered by the grid filter plate 4, the water curtain of the grid filter plate 4 settles and removes dust, and the rotating adsorption and scraping of the filter cartridge 94 can greatly improve the purification effect of dust and flue gas.

[0039] Further as Figure 3 and Figure 5As shown, it is worth noting that an arc-shaped screen plate 11 fixed to the inner wall of the purification chamber 1 is provided on the side of the filter cartridge 94 away from the grid filter plate 4. An L-shaped mounting plate 12 fixed to the side wall of the arc-shaped screen plate 11 is provided on the bottom surface of the exhaust blade 6. An activated carbon plate 13 is provided between the top and bottom surfaces of the L-shaped mounting plate 12 and the bottom inner wall of the purification chamber 1. The activated carbon plate 13 penetrates the inner wall of the end face of the purification chamber 1. The arc-shaped screen plate 11 can not only isolate the rinsing liquid sprayed by the water spray pipe 8, but also perform a second isolation and adsorption treatment on the flue gas. The activated carbon plate 13 performs activated carbon adsorption treatment on water vapor and flue gas, and finally performs a final isolation and adsorption treatment through the L-shaped mounting plate 12, so that the flue gas that has undergone multiple physical purifications can be better discharged to the next process through the exhaust blade 6.

[0040] Further as Figure 5 As shown, it is worth noting that a rotating ring 14 is fixed to the bottom surface of multiple scraper rods 96. A rotating rod 15 is fixed to the inner wall of the rotating ring 14. A spiral blade 16 is tightly sleeved on the outer surface of the rotating rod 15. The rotating ring 14 is used to scrape the bottom surface of the filter cartridge 94. The spiral blade 16 is used to guide the scraped liquid to a certain extent, so that the liquid in the return pipe 102 can reach the top surface of the grid filter plate 4 more conveniently.

[0041] A green printing process, based on the aforementioned green printing apparatus, includes the following steps:

[0042] S1. Dust and flue gas collection and treatment: The flue gas and dust generated by green printing are concentrated at the air intake hood 3 and enter the purification box 1 through the air intake pipe 2 for centralized collection and treatment. The dust and flue gas are initially isolated and filtered through the grid filter plate 4, forming an isolation filtration and purification treatment for dust and flue gas.

[0043] S2, Rotary Adsorption Washing Treatment: Cooling water supplied through the spray pipe 8 sprays water onto the inner surface of the filter cartridge 94, forming an isolation water film on the outer surface of the filter cartridge 94. The dust and flue gas that has undergone isolation filtration and purification in step S1 passes through the isolation water film of the filter cartridge 94 for isolation adsorption treatment, adsorbing and removing dust from the dust and flue gas. Through the action of the rotary adsorption mechanism 9, the filter cartridge 94 and the scraper 96 rotate in opposite directions to perform rotary scraping treatment on the dust that has undergone isolation adsorption treatment. At the same time, through the action of the water curtain settling mechanism 10, the scraping liquid flows back to the top surface of the grid filter plate 4 in step S1, and a water curtain is formed through the slope of the grid filter plate 4 to perform settling and dust removal treatment on the dust and flue gas.

[0044] S3. Activated carbon adsorption treatment: The dust and flue gas that has been isolated and adsorbed in step S2 is screened again by the arc-shaped sieve plate 11. By the wind force of the exhaust blades 6, the flue gas is made to pass through the activated carbon plate 13 for activated carbon adsorption treatment, and then undergoes final isolation adsorption treatment by the L-shaped mounting plate 12, thereby completing the physical purification treatment of the dust and flue gas.

[0045] S4. Photocatalytic electrolysis treatment: The dust and flue gas that have undergone physical purification in step S3 are sent into the subsequent photocatalytic electrolysis box through exhaust pipe 5, so as to carry out photocatalytic electrolysis purification treatment of the flue gas. After reaching the discharge standard, it is discharged into the air, thus completing the photocatalytic electrolysis purification treatment of the flue gas.

[0046] In summary: By using the grid filter plate 4 for isolation and filtration, the water curtain settling dust removal of the grid filter plate 4, the rotating adsorption and rotating scraping of the filter cartridge 94, the arc-shaped sieve plate 11 for isolation and filtration, the activated carbon adsorption of the activated carbon plate 13, and the isolation and adsorption of the L-shaped mounting frame, the dust and flue gas generated during green printing processes undergo more thorough physical purification. The gas is then transferred to the subsequent photocatalytic electrolysis purification treatment box via the exhaust blade 6 for chemical purification, thus greatly improving the treatment effect and achieving green and environmentally friendly flue gas emission standards.

[0047] The drive motor 7 can be purchased from the market. The drive motor 7 is equipped with a power supply. It is a mature technology in this field and has been fully disclosed. Therefore, it will not be described again in the specification.

[0048] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The words “comprising” or “including” and similar terms used in this invention mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. “Up,” “down,” “left,” “right,” etc., are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A green printing processing device, comprising a purification chamber (1), characterized in that, One side wall of the purification box (1) is connected to an air inlet pipe (2), and the bottom surface of the air inlet pipe (2) is connected to an air inlet hood (3). Three grid filter plates (4) are arranged on the outside of the air inlet pipe (2) at equal intervals. The three grid filter plates (4) are fixed to the side wall of the purification box (1). The top surface of the purification box (1) is connected to an exhaust pipe (5). Below the exhaust pipe (5) is an exhaust blade (6) that is rotatably connected to the inner wall of the top of the purification box (1). The top surface of the purification box (1) is equipped with a drive motor (7) that is coaxially connected to the exhaust blade (6). A water spray pipe (8) is fixedly inserted through the center of the top surface of the purification box (1). A rotating adsorption mechanism (9) that cooperates with the drive motor (7) is arranged around the water spray pipe (8). A water curtain settling mechanism (10) that cooperates with the rotating adsorption mechanism (9) is arranged above the grid filter plate (4) at the top. The rotating adsorption mechanism (9) includes four columns (91) distributed at equal angles. All four columns (91) are fixed to the top inner wall of the purification box (1). A limiting plate (92) is fixed to the outer surface of all four columns (91). A toothed sleeve (93) is rotatably connected to the top center of the limiting plate (92) and the top inner wall of the purification box (1). A filter cartridge (94) is fixed to the bottom surface of the toothed sleeve (93). The toothed sleeve (93), the filter cartridge (94), and the water spray pipe (8) are coaxially arranged. The top inner wall of the purification box (1) and the limiting plate (92) are... A toothed ring (95) is rotatably connected at the center of the top surface. Multiple scrapers (96) are fixed on the bottom surface of the toothed ring (95) in a uniformly distributed manner. A drive gear (97) is provided between the toothed ring (95) and the toothed sleeve (93) and is rotatably connected to the inner wall of the top surface of the purification box (1). The outer teeth of the drive gear (97) are respectively meshed with the toothed ring (95) and the toothed sleeve (93). The drive gear (97) and the top of the exhaust blade (6) are respectively coaxially fixed with transmission pulleys (98). The outer surfaces of the two transmission pulleys (98) are provided with transmission belts (99). The water curtain settling mechanism (10) includes a liquid collection cylinder (101) connected to the center of the bottom surface of the purification box (1). The bottom end of the liquid collection cylinder (101) is connected to a return pipe (102). The end of the return pipe (102) away from the liquid collection cylinder (101) is connected to the inner wall of the top end face of the purification box (1). The bottom outer surface of the return pipe (102) is connected to a cleaning pipe (103). The scraping liquid is transported through the return pipe 102 to the surface of the top grid filter plate 4, so that a water curtain is formed on the surface of the three grid filter plates 4, thereby performing preliminary settling and dust removal treatment on the dust and flue gas before reaching the filter cartridge 94. The bottom vertical section of the return pipe (102) is U-shaped. The impurity removal pipe (103) is located at the center of the U-shaped section of the return pipe (102). The grid filter plate (4) is inclined to the side wall of the purification box (1). The bottom end of the grid filter plate (4) is provided with a protrusion that is perpendicular to the inclined slope of the grid filter plate (4). The filter cartridge (94) is provided with an arc-shaped sieve plate (11) fixed to the inner wall of the purification box (1) on the side away from the grid filter plate (4). The bottom surface of the exhaust blade (6) is provided with an L-shaped mounting plate (12) fixed to the side wall of the arc-shaped sieve plate (11). An activated carbon plate (13) is provided between the top and bottom surfaces of the L-shaped mounting plate (12) and the bottom inner wall of the purification box (1). The activated carbon plate (13) penetrates the inner wall of the end face of the purification box (1).

2. The green printing processing equipment according to claim 1, characterized in that: The cross-section of the scraper (96) is semi-elliptical, and the opposite ends of the plurality of scrapers (96) are in contact with the outer surface of the filter cartridge (94).

3. The green printing processing equipment according to claim 2, characterized in that: A rotating ring (14) is fixed to the bottom surface of multiple scraper rods (96), a rotating rod (15) is fixed to the inner wall of the rotating ring (14), and a spiral blade (16) is fastened to the outer surface of the rotating rod (15).

4. A processing method using the green printing processing equipment according to claim 3, characterized in that: The green printing process method is based on the aforementioned green printing device and includes the following steps: S1. Dust and flue gas collection and treatment: The flue gas and dust generated by green printing are concentrated at the air inlet hood (3) and enter the purification box (1) through the air inlet pipe (2) for centralized collection and treatment. The dust and flue gas are initially isolated and filtered through the grid filter plate (4) to form an isolation filtration and purification treatment for dust and flue gas. S2, Rotary adsorption rinsing treatment: Cooling water sent through the spray pipe (8) sprays water onto the inner surface of the filter cartridge (94), forming an isolation water film on the outer surface of the filter cartridge (94). The dust and flue gas that has been isolated and purified by the isolation filtration in step S1 is isolated and adsorbed by the isolation water film of the filter cartridge (94), adsorbing and removing dust from the dust and flue gas. Through the action of the rotary adsorption mechanism (9), the filter cartridge (94) and the scraper (96) rotate in opposite directions to perform rotary scraping treatment on the dust that has been isolated and adsorbed. At the same time, through the action of the water curtain settling mechanism (10), the scraping liquid flows back to the top surface of the grid filter plate (4) in step S1, and a water curtain is formed through the slope of the grid filter plate (4) to perform settling and dust removal treatment on the dust and flue gas. S3, Activated carbon adsorption treatment: The dust and flue gas that has been isolated and adsorbed in step S2 is screened again by the arc-shaped sieve plate (11). By the wind force of the exhaust blade (6), the flue gas is made to pass through the activated carbon plate (13) for activated carbon adsorption treatment, and then by the L-shaped mounting plate (12) for final isolation adsorption treatment, thereby completing the physical purification treatment of the dust and flue gas. S4. Photocatalytic electrolysis treatment: The dust and flue gas that have undergone physical purification in step S3 are sent into the subsequent photocatalytic electrolysis box through the exhaust pipe (5) to carry out photocatalytic electrolysis purification treatment on the flue gas. After reaching the discharge standard, the flue gas is discharged to the air, thus completing the photocatalytic electrolysis purification treatment of the flue gas.

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