A green printing ink waste liquid recycling device and a treatment method thereof

Abstract

The present application relates to the technical field of ink environmental protection treatment, and particularly relates to a green and environmental printing ink waste liquid recycling treatment device and a treatment method thereof. The device comprises an inner box body, a first working cavity, a second working cavity and a third working cavity are sequentially arranged in the inner box body from top to bottom, and a first screen, a second screen and a third screen are respectively arranged at the bottom of the first working cavity, the second working cavity and the third working cavity. The mesh gaps of the first screen, the second screen and the third screen are sequentially and equally reduced. Liquid passing units are spirally arranged around the inner box body. The device ensures the balanced size of waste residues through the hierarchical and step-by-step crushing mode, ensures the different treatment modes of different volumes of condensates at the same time, and does not need manual operation and special multiple filtering processes throughout the process. The device improves the crushing effect, protects the crushing components, improves the automation degree and the working smoothness of the device.

Description

Technical Field

[0001] This invention belongs to the field of environmentally friendly ink treatment technology, and specifically relates to a green and environmentally friendly printing ink waste liquid recycling and treatment device and its treatment method. Background Technology

[0002] Nowadays, most printing inks are made of green, environmentally friendly, and recyclable materials. After printing, the remaining ink waste liquid still contains many substances that can be recycled and reused. In particular, some substances react with each other to produce precipitates after a long period of stillness and sedimentation. In order to separate the reusable substances, professional recycling treatment of the waste liquid is required.

[0003] A search revealed a patent document with publication number CN116789216A, published on September 22, 2023, entitled "A Harmless Recycling System for Printing Solvents." The system includes a hollow cylindrical processing box with an open top and an air flotation plate installed at the bottom of the box. The air flotation plate has several air outlets and is connected to an external air supply device. Inside the processing box, a rotating shaft is rotatably mounted, coinciding with the box's axis. A filter plate, rectangular in shape, is mounted on one side of the shaft. The top of the filter plate is flush with the opening of the processing box. The diameter of the holes in the filter plate is smaller than the flocculants and fine particles in the printing solvent, allowing water to pass through while preventing the flocculants and fine particles from passing. A drive mechanism is installed on the processing box, connected to the rotating shaft and used to drive its rotation. The above embodiment utilizes a lifting mechanism to drive the brush plate to move upward, and the brush plate brushes the deposits on the filter screen upward into the slag collection plate, thereby cleaning the flocs and fine suspended particles in the printing waste liquid more comprehensively and improving the treatment effect of flocs and fine suspended particles in the printing waste liquid.

[0004] However, the above embodiments still have the following drawbacks:

[0005] In order to separate substances of different types and sizes, and because each substance needs to be processed individually due to its different types and sizes, the above embodiments require a lot of working time, thereby reducing the smoothness of the work. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a green and environmentally friendly waste ink recycling and treatment device for printing, comprising an inner chamber, wherein a first working chamber, a second working chamber, and a third working chamber are arranged sequentially from top to bottom within the inner chamber, and a first barrier, a second barrier, and a third barrier are respectively provided at the bottom of the first working chamber, the second working chamber, and the third working chamber; the mesh gaps of the first barrier, the second barrier, and the third barrier decrease arithmetically in succession; a liquid-passing unit is spirally arranged around the inner chamber; the liquid-passing unit includes a vibrating plate, a vibrating motor is provided on the vibrating plate, and a spiral liquid-discharging pipe is installed on the vibrating plate, the spiral liquid-discharging pipe having a spiral structure;

[0007] The spiral liquid discharge pipe is provided with a first discharge port, a second discharge port, and a third discharge port in sequence from top to bottom. A first baffle screen, a second baffle screen, and a third baffle screen are respectively inclinedly arranged on the side of the first discharge port, the second discharge port, and the third discharge port near the bottom of the spiral liquid discharge pipe. The output ends of the first discharge port, the second discharge port, and the third discharge port are respectively connected to the cavities of the first working chamber, the second working chamber, and the third working chamber. The screen density of the first baffle screen, the second baffle screen, and the third baffle screen decreases in a progressively equal manner.

[0008] Furthermore, the recycling and processing device also includes an outer casing, and the inner casing is located on the central axis of the inner cavity of the outer casing;

[0009] The bottom of the vibrating plate has several sets of damping shock absorbers arranged in a ring array.

[0010] Furthermore, a first motor is provided at the center of the top of the inner box, and a main rotating shaft is connected to the output end of the first motor. The bottom of the main rotating shaft passes through the first working chamber, the second working chamber and the third working chamber in sequence along the vertical direction, and a set of powder units is sleeved in each of the first working chamber, the second working chamber and the third working chamber.

[0011] Furthermore, the powder unit includes a fixed sleeve, which is sleeved on the main rotating shaft. Several sets of crossbars are arranged at equal intervals from top to bottom on the outer wall of the fixed sleeve. The several sets of crossbars are distributed in a spiral path, and several sets of powder mesh are distributed in a ring array on the crossbars.

[0012] Furthermore, the powder mesh includes a mounting frame, on which several sets of horizontal blades and several sets of vertical blades are arranged at equal intervals along the vertical and horizontal directions, and the several sets of horizontal blades and several sets of vertical blades are combined to form a mesh structure.

[0013] Furthermore, a purification unit is provided at the bottom of the outer casing. The purification unit includes an outer bottom box with a feed inlet at the top. The top of the feed inlet is connected to the third working chamber through a third mesh. A conveyor belt is provided inside the outer bottom box. The input end of the conveyor belt is located directly below the feed inlet, and the output end of the conveyor belt extends horizontally to the outside of the outer bottom box. An inner bottom box is provided directly above the conveyor belt. Several sets of rotating rods are arranged at equal intervals along the conveying direction of the conveyor belt inside the inner bottom box cavity. A suction roller is sleeved on the rotating rod. The suction roller is made of magnetic material.

[0014] Furthermore, the rotating rod is equipped with an electromagnet, one end of the rotating rod is connected to a second motor, and the other end of the rotating rod is rotatably connected to a conductive slip ring. The electromagnet is electrically connected to an electromagnetic adsorption control component through the conductive slip ring. The bottom of the suction roller is slidably attached to the top of the conveyor belt. A collection mechanism is provided on one side of the suction roller.

[0015] Furthermore, a material-laying component is installed at the bottom edge of the outer wall of the inner bottom box near the feed inlet. The material-laying component includes two sets of crescent plates symmetrically arranged around the central axis of the inner bottom box. The crescent plates have a fan-shaped cross-section when viewed from above. A material-guiding groove is provided at the bottom of the crescent plates. The material-guiding groove is inclined, and the height of the side near the central axis of the inner bottom box is higher than that of the other side.

[0016] Furthermore, the collection mechanism includes a scraping box, which is arranged parallel to the rotating rod and has an inlet for ingestion on the side near the rotating rod. The bottom of the scraping box has a removal port, and the bottom of the removal port is connected to a collection box. A scraping blade is provided at the opening of the inlet, one side of which slides against the suction roller, and the other side extends downward to the removal port.

[0017] A method for treating waste printing ink using a green and environmentally friendly recycling and treatment device, the method comprising:

[0018] Waste liquid is injected into the spiral discharge pipe. When the waste liquid moves to the first discharge port, the larger condensate is intercepted by the first baffle screen.

[0019] Then, as the waste liquid continues to move, the medium-sized and small-sized condensates are intercepted by the second and third baffle screens, respectively.

[0020] After the waste liquid passes through the spiral drain pipe, it enters the collection tank for further purification treatment.

[0021] Simultaneously, the condensate adsorbed on the first baffle screen, the second baffle screen and the third baffle screen are respectively transported to the first working chamber, the second working chamber and the third working chamber;

[0022] The three groups of condensates, classified by volume, are simultaneously crushed and cut in the first working chamber, the second working chamber, and the third working chamber.

[0023] After the condensate in the first working chamber is cut off, its volume decreases, and then it enters the second working chamber through the first barrier.

[0024] As the condensate in the second working chamber is further cut, its volume continues to shrink and it enters the third working chamber through the second barrier.

[0025] After the cutting in the third working chamber is completed, the crushing process is finished, and the condensed waste residue is obtained;

[0026] Metals were extracted from the waste residue to obtain metal waste residue and non-metal waste residue.

[0027] The beneficial effects of this invention are:

[0028] 1. First, the spiral structure of the spiral liquid-discharging pipe is utilized to prevent waste liquid from settling or flowing too slowly. Then, the condensate is filtered separately through the first, second, and third baffle screens. The condensate is then processed in the first, second, and third working chambers in descending order of volume, where it is simultaneously crushed. After being processed in the first working chamber, it enters the second working chamber, and after being processed in the second working chamber, it enters the third working chamber. Through this layered and step-by-step crushing method, the volume of the waste residue is kept uniform, and different treatment methods are applied to condensate of different volumes at the same time. The entire process requires no manual operation and no need for multiple filtration steps. This improves the crushing effect, protects the crushing components, and enhances the automation and smoothness of the operation of the device.

[0029] 2. Several sets of crossbars are arranged at equal intervals from top to bottom and distributed along a spiral path. This ensures that when each set of crossbars rotates, it not only cuts the condensate at all heights, resulting in a more three-dimensional powder effect, but also makes the centrifugal force on the fixed sleeve more even in all directions during rotation. Furthermore, the spiral path distribution creates a vortex during rotation, causing the condensate to converge towards the center and preventing sedimentation.

[0030] 3. The powder mesh is a grid structure composed of several sets of horizontally spaced, equally spaced blades and several sets of vertically spaced, equally spaced blades. This allows the agglomerates to be cut into several equal-volume fragments in one pass, eliminating the need for multiple cuts, shortening the powdering time, and improving work efficiency. Simultaneously, the mesh density of the powder mesh in the first, second, and third working chambers increases progressively with equal differences, which meets the requirement of simultaneously pulverizing agglomerates of different volumes, enhancing the auxiliary function of the powder unit.

[0031] 4. After the condensate is crushed into waste residue, an electromagnetic suction roller, powered by electricity, comes into contact with the evenly spread waste residue, attracting metal substances from it. As the roller rotates, the metal waste residue adsorbed on its surface is scraped off by a scraper blade that slides against the roller. This metal waste residue then flows down the slope of the scraper blade into the collection box. The suction roller, now free of metal waste residue, can continue to extract metal from subsequent waste residue as it rotates. This process allows for the separation of metal and non-metal waste residue, thereby improving the purity of the recycling process.

[0032] 5. The waste slag is conveyed to the material spreading unit by the conveyor belt. At this time, two sets of symmetrically arranged crescent plates push the irregularly piled waste slag to both sides. With the characteristic that the height of the side of the feed chute closer to the central axis of the inner bottom box is higher than that of the other side, the waste slag can be spread more evenly on the surface of the conveyor belt. This avoids the metal waste slag that is pressed to the bottom and cannot be adsorbed, thereby improving the sorting effect of metal waste slag.

[0033] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the structure of a processing apparatus according to an embodiment of the present invention is shown.

[0036] Figure 2 A cross-sectional schematic diagram of the inner casing according to an embodiment of the present invention is shown.

[0037] Figure 3 A schematic diagram of the liquid-passing unit according to an embodiment of the present invention is shown.

[0038] Figure 4 A cross-sectional schematic diagram of a liquid-passing unit according to an embodiment of the present invention is shown.

[0039] Figure 5 A schematic diagram of the structure of a powder unit according to an embodiment of the present invention is shown.

[0040] Figure 6A schematic diagram of the connection between the powder mesh and the crossbar according to an embodiment of the present invention is shown.

[0041] Figure 7 A cross-sectional schematic diagram of a purification unit according to an embodiment of the present invention is shown.

[0042] Figure 8 A cross-sectional schematic diagram of the inner bottom box according to an embodiment of the present invention is shown.

[0043] Figure 9 A schematic diagram showing the connection between the suction roller and the collection mechanism according to an embodiment of the present invention is provided.

[0044] Figure 10 A bottom view of a fabric component according to an embodiment of the present invention is shown.

[0045] Figure 11 An exploded schematic diagram of the collection mechanism according to an embodiment of the present invention is shown.

[0046] Figure 12 A bottom view schematic diagram of a scraping box according to an embodiment of the present invention is shown.

[0047] In the diagram: 100, outer casing; 110, inner casing; 111, first working chamber; 112, second working chamber; 113, third working chamber; 114, first baffle; 115, second baffle; 116, third baffle; 120, first motor; 130, main shaft; 200, liquid conveying unit; 210, vibrating plate; 211, damping shock absorber; 220, spiral discharge pipe; 221, inlet hopper; 230, first discharge port; 231, first baffle screen; 240, second discharge port; 241, second baffle screen; 250, third discharge port; 251, third baffle screen. 300. Screen; 310. Powder unit; 320. Fixed sleeve; 330. Crossbar; 331. Powder mesh; 332. Mounting frame; 333. Horizontal blade; 333. Vertical blade; 400. Water collection tank; 500. Purification unit; 510. Outer bottom box; 511. Feed inlet; 520. Conveyor belt; 530. Inner bottom box; 540. Material spreading component; 541. Crescent plate; 542. Feed chute; 550. Rotating rod; 560. Impurity suction roller; 570. Collection mechanism; 571. Impurity scraper box; 572. Impurity inlet; 573. Impurity scraper; 574. Impurity removal port; 575. Impurity collection box. Detailed Implementation

[0048] 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 only some embodiments of the present invention, not all embodiments. Based on the 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.

[0049] This invention provides a green and environmentally friendly printing ink waste liquid recycling and treatment device, exemplarily, such as... Figure 1 and Figure 2 As shown, the device includes an outer casing 100, an inner casing 110 located at the center of the inner cavity of the outer casing 100, and a liquid-passing unit 200 spirally arranged around the inner casing 110. The liquid-passing unit 200 is used to filter condensates in the waste liquid.

[0050] The inner chamber 110 contains, from top to bottom, a first working chamber 111, a second working chamber 112, and a third working chamber 113. The bottoms of the first working chamber 111, the second working chamber 112, and the third working chamber 113 are respectively equipped with a first baffle 114, a second baffle 115, and a third baffle 116. The first working chamber 111, the second working chamber 112, and the third working chamber 113 are sequentially connected by the first baffle 114 and the second baffle 115. The first working chamber 111, the second working chamber 112, and the third working chamber 113 process the condensate filtered by the liquid-passing unit 200 according to its volume.

[0051] The mesh gaps of the first barrier 114, the second barrier 115 and the third barrier 116 decrease arithmetically in sequence.

[0052] For example, a first motor 120 is provided at the top center of the inner casing 110. A main rotating shaft 130 is connected to the output end of the first motor 120. The bottom of the main rotating shaft 130 passes through the first working chamber 111, the second working chamber 112, and the third working chamber 113 in a vertical direction. A set of powder units 300 are sleeved in each of the first working chamber 111, the second working chamber 112, and the third working chamber 113. The powder units 300 are used to break up the condensate into waste residue.

[0053] For example, the bottom of the third working chamber 113 is connected to a purification unit 500 via a third mesh 116. A water collection tank 400 is provided on one side of the purification unit 500, and the water collection tank 400 is connected to the bottom of the liquid transfer unit 200. The water collection tank 400 is used to collect filtered wastewater. The purification unit 500 is used to classify the treated waste residue for recycling.

[0054] For example, such as Figure 3and Figure 4 As shown, the liquid transfer unit 200 includes a vibrating plate 210, the central axis of which coincides with the central axis of the inner housing 110. A vibration motor is mounted on the vibrating plate 210, and several sets of damping shock absorbers 211 are arranged in a circular array at the bottom of the vibrating plate 210. A spiral liquid discharge pipe 220 is installed on the vibrating plate 210, and the spiral liquid discharge pipe 220 has a spiral structure. The top of the spiral liquid discharge pipe 220 is connected to a liquid inlet 221, the top of which extends above the outer housing 100. The bottom of the spiral liquid discharge pipe 220 is connected to a flexible bamboo-joint hose, the other end of which is connected to a water collection tank 400.

[0055] For example, the spiral discharge pipe 220 is provided with a first discharge port 230, a second discharge port 240, and a third discharge port 250 sequentially from top to bottom. A first baffle screen 231, a second baffle screen 241, and a third baffle screen 251 are respectively inclinedly arranged on the side of the first discharge port 230, the second discharge port 241, and the third discharge port 250 near the bottom of the spiral discharge pipe 220. The output ends of the first discharge port 230, the second discharge port 241, and the third discharge port 250 are respectively connected to the cavities of the first working chamber 111, the second working chamber 112, and the third working chamber 113 via a set of solenoid valves and a set of hoses. The screen density of the first baffle screen 231, the second baffle screen 241, and the third baffle screen 251 decreases sequentially at equal arithmetic degrees.

[0056] Waste liquid is injected into the spiral discharge pipe 220 through the inlet hopper 221. When the waste liquid moves to the first discharge port 230, the larger condensate is intercepted by the first baffle sieve 231. Then, as the waste liquid continues to move, the medium and small condensate are intercepted by the second baffle sieve 241 and the third baffle sieve 251, respectively. After passing through the spiral discharge pipe 220, the waste liquid enters the collection tank 400 for subsequent purification. At this time, all sets of solenoid valves are opened simultaneously, and the vibration motor is turned on, allowing the condensate adsorbed on the first baffle sieve 231, the second baffle sieve 241, and the third baffle sieve 251 to enter the first working chamber 111, the second working chamber 112, and the third working chamber 113, respectively. Then, the first motor 120 is started, which drives the main shaft 130 and each set of powder units 300 to rotate simultaneously, so that each set of powder units 300 simultaneously crushes the condensate of the three volumes. After the condensate in the first working chamber 111 is cut, its volume decreases, and it then enters the second working chamber 112 through the first baffle 114. As the condensate in the second working chamber 112 is further cut, its volume continues to shrink, and it passes through the second baffle 115 into the third working chamber 113. Once the cutting in the third working chamber 113 is completed, the crushing process is finished, yielding condensate residue. This residue then passes through the third baffle 116 into the purification unit 500 for further processing.

[0057] For example, such as Figure 5 and Figure 6 As shown, the powder unit 300 includes a fixing sleeve 310, which is sleeved on the main rotating shaft 130. Several sets of crossbars 320 are arranged at equal intervals from top to bottom on the outer wall of the fixing sleeve 310. The several sets of crossbars 320 are distributed in a spiral path. Several sets of powder meshes 330 are distributed in a ring array on the crossbars 320.

[0058] For example, the powder mesh 330 includes a mounting frame 331, on which a plurality of sets of horizontal blades 332 and a plurality of sets of vertical blades 333 are arranged at equal intervals in the vertical and horizontal directions, and the plurality of sets of horizontal blades 332 and the plurality of sets of vertical blades 333 are combined to form a mesh structure.

[0059] Specifically, the mesh density of the powder mesh 330 in the first working chamber 111, the second working chamber 112 and the third working chamber 113 increases sequentially at equal intervals.

[0060] Several sets of crossbars 320 are arranged at equal intervals from top to bottom and distributed along a spiral path. This ensures that when each set of crossbars rotates, it not only ensures that condensate at all heights is cut, resulting in a more three-dimensional powder effect, but also makes the centrifugal force on the fixed sleeve 310 more even in all directions when it rotates. At the same time, the spiral path distribution creates a vortex when the whole structure rotates, causing the condensate to move towards the center and preventing sedimentation.

[0061] The powder mesh 330 is a grid structure composed of several groups of horizontally spaced equally spaced transverse blades 332 and several groups of vertically spaced equally spaced equally spaced vertical blades 333. This allows the agglomerates to be cut into several equal-volume fragments in one go, eliminating the need for multiple cutting operations, shortening the powdering time, and improving work efficiency. Simultaneously, the mesh density of the powder mesh 330 in the first working chamber 111, the second working chamber 112, and the third working chamber 113 increases progressively with equal density, which meets the requirement of simultaneously pulverizing agglomerates of different volumes and enhances the auxiliary function of the powder unit 300.

[0062] For example, such as Figure 7 , Figure 8 and Figure 9As shown, the purification unit 500 includes an outer bottom box 510, with a feed inlet 511 at its top. The top of the feed inlet 511 is connected to the third working chamber 113 via a third mesh 116. A conveyor belt 520 is installed inside the outer bottom box 510. The input end of the conveyor belt 520 is located directly below the feed inlet 511, and the output end of the conveyor belt 520 extends horizontally to the outside of the outer bottom box 510. An inner bottom box 530 is located directly above the conveyor belt 520. Several sets of rotating rods 550 are arranged at equal intervals along the conveying direction of the conveyor belt 520 within the cavity of the inner bottom box 530. A suction roller 560 is sleeved on each rotating rod 550. The suction roller 560 is made of magnetic material.

[0063] For example, the rotating rod 550 is equipped with an electromagnet, one end of the rotating rod 550 is drivenly connected to a second motor, and the other end of the rotating rod 550 is rotatably connected to a conductive slip ring. The electromagnet is electrically connected to an electromagnetic adsorption control component through the conductive slip ring. The bottom of the suction roller 560 is slidably attached to the top of the conveyor belt 520. A collection mechanism 570 is provided on one side of the suction roller 560.

[0064] For example, such as Figure 7 and Figure 10 As shown, a material-laying component 540 is installed at the bottom edge of the outer wall of the inner bottom box 530 near the feed inlet 511. The material-laying component 540 includes two sets of crescent plates 541 symmetrically arranged around the central axis of the inner bottom box 530. The top view of the crescent plates 541 is a fan-shaped annular structure. A material-guiding groove 542 is provided at the bottom of the crescent plates 541. The material-guiding groove 542 is inclined, and the height of the side near the central axis of the inner bottom box 530 is higher than that of the other side.

[0065] For example, such as Figure 11 and Figure 12 As shown, the collection mechanism 570 includes a scraping box 571, which is arranged parallel to the rotating rod 550. A scraping inlet 572 is provided on the side near the rotating rod 550. A scraping removal outlet 574 is provided at the bottom of the scraping box 571, and the bottom of the scraping removal outlet 574 is connected to a collection box 575. A scraping blade 573 is provided at the opening of the scraping inlet 572. One side of the scraping blade 573 slides against the suction roller 560, and the other side extends downwards to the scraping removal outlet 574.

[0066] After the condensate is crushed into waste residue, it falls onto the lower conveyor belt 520 through the third barrier 116 and the feed inlet 511. Then, it is conveyed by the conveyor belt 520 to the spreading component 540. At this time, two sets of symmetrically arranged crescent plates 541 are used to push the irregularly piled waste residue to both sides. Furthermore, due to the characteristic that the height of the side of the feed chute 542 closer to the central axis of the inner bottom box 530 is higher than that of the other side, the waste residue can be spread more evenly on the surface of the conveyor belt.

[0067] At this point, the second motor and the electromagnetic adsorption control unit are activated. The second motor drives the rotating rod 550 and the suction roller 560 to rotate. Simultaneously, the electromagnetic adsorption control unit and the conductive slip ring supply power to the electromagnet, generating electromagnetic attraction. When the suction roller 560 comes into contact with the evenly spread waste residue, it picks up all the metal materials from the waste residue. Then, as the rotating rod 550 rotates, the metal waste residue adsorbed on the surface of the suction roller 560 is scraped off by utilizing the sliding contact between one side of the scraper 573 and the suction roller 560. This metal waste residue then flows down the ramp of the scraper 573 into the collection box 575. The suction roller 560, with the scraped metal waste residue removed, can continue to pick up metal materials from subsequent waste residue as it rotates. Non-metallic waste residue is conveyed to the outside of the outer bottom box 510 via the conveyor belt 520 for separate recycling.

[0068] The above embodiments have the following beneficial effects:

[0069] 1. First, utilizing the spiral structure of the spiral drain pipe 220, the waste liquid is prevented from settling or flowing too slowly. Then, the condensate is filtered separately through the first baffle screen 231, the second baffle screen 241, and the third baffle screen 251. The condensate is then processed in descending order of volume into the first working chamber 111, the second working chamber 112, and the third working chamber 113, where it is simultaneously crushed. After being processed in the first working chamber 111, the condensate enters the second working chamber 112, and after entering the second working chamber 112, it enters the third working chamber 113. This layered and step-by-step crushing method ensures a uniform volume of waste residue and allows for different treatment methods for condensate of different volumes within the same timeframe. Furthermore, the entire process requires no manual operation or multiple filtration steps. This improves the crushing effect, protects the crushing components, and enhances the automation and smoothness of the device.

[0070] 2. Several sets of crossbars 320 are arranged at equal intervals from top to bottom and distributed along a spiral path. This ensures that when each set of crossbars rotates, it not only ensures that condensate at all heights is cut, resulting in a more three-dimensional powder effect, but also makes the centrifugal force on the fixed sleeve 310 more even in all directions when it rotates. At the same time, the spiral path distribution creates a vortex when the whole structure rotates, causing the condensate to move towards the center and preventing sedimentation.

[0071] 3. The powder mesh 330 is a grid structure composed of several groups of horizontally spaced equally spaced transverse blades 332 and several groups of vertically spaced equally spaced vertical blades 333. This allows the agglomerates to be cut into several equal-volume fragments in one go, eliminating the need for multiple cutting operations, shortening the powdering time, and improving work efficiency. Simultaneously, the mesh density of the powder mesh 330 in the first working chamber 111, the second working chamber 112, and the third working chamber 113 increases progressively with equal density, which meets the requirement of simultaneously pulverizing agglomerates of different volumes and enhances the auxiliary function of the powder unit 300.

[0072] 4. After the condensate is crushed into waste residue, an electromagnetic suction roller 560, powered by electricity, comes into contact with the evenly spread waste residue, sucking up the metal substances in the waste residue. Then, as the rotating rod 550 rotates, the metal waste residue adsorbed on the surface of the suction roller 560 is scraped off by the sliding contact between one side of the scraper 573 and the suction roller 560. This metal waste residue then flows through the slope of the scraper 573 into the collection box 575. The suction roller 560, with the scraped metal waste residue removed, can continue to suck up metal substances from subsequent waste residue as it rotates. This allows for the separation of metal and non-metal waste residue, thereby improving the purity of the sorted recycling.

[0073] 5. The waste slag is conveyed to the material spreading component 540 by the conveyor belt 520. At this time, the irregularly piled waste slag is pushed to both sides by two sets of symmetrically arranged crescent plates 541. With the characteristic that the height of the side of the feed chute 542 closer to the central axis of the inner bottom box 530 is higher than that of the other side, the waste slag can be spread more evenly on the surface of the conveyor belt, avoiding the metal waste slag that is pressed to the bottom and cannot be adsorbed, thereby improving the sorting effect of metal waste slag.

[0074] Based on the aforementioned green and environmentally friendly waste ink recycling and treatment device for printing, this invention also proposes a treatment method for the device. For example, the treatment method includes:

[0075] Waste liquid is injected into the spiral discharge pipe. When the waste liquid moves to the first discharge port, the larger condensate is intercepted by the first baffle screen.

[0076] Then, as the waste liquid continues to move, the medium-sized and small-sized condensates are intercepted by the second and third baffle screens, respectively.

[0077] After the waste liquid passes through the spiral drain pipe, it enters the collection tank for further purification treatment.

[0078] At the same time, the solenoid valves of each group are opened and the vibration motor is turned on, so that the condensate adsorbed on the first baffle screen, the second baffle screen and the third baffle screen enter the first working chamber, the second working chamber and the third working chamber respectively.

[0079] Start the first motor, which drives the main shaft and each group of powder units to rotate simultaneously, so that each group of powder units can simultaneously crush the three volumes of condensate.

[0080] After the condensate in the first working chamber is cut off, its volume decreases, and then it enters the second working chamber through the first barrier.

[0081] As the condensate in the second working chamber is further cut, its volume continues to shrink and it enters the third working chamber through the second barrier.

[0082] After the cutting in the third working chamber is completed, the crushing process is finished, and the condensed waste residue is obtained;

[0083] The waste residue falls onto the conveyor belt below through the third screen and the feed inlet, and then is conveyed to the material laying component by the conveyor belt;

[0084] The irregularly shaped waste residue is evenly spread on the surface of the conveyor belt by the material spreading component;

[0085] The suction roller is energized to generate electromagnetic attraction, which picks up the metal waste.

[0086] As the rotating rod rotates, the scraper blade scrapes off the metal waste adsorbed on the surface of the suction roller and it falls into the collection box for recycling.

[0087] Non-metallic waste residue continues to be conveyed away from the outer casing via a conveyor belt.

[0088] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A green and environmentally friendly waste ink recycling and treatment device for printing, comprising an inner casing and an outer casing, characterized in that: The inner chamber is provided with a first working chamber, a second working chamber, and a third working chamber from top to bottom. The bottom of the first working chamber, the second working chamber, and the third working chamber are respectively provided with a first barrier, a second barrier, and a third barrier. The mesh gaps of the first barrier, the second barrier, and the third barrier decrease arithmetically in succession. The inner chamber is provided with a liquid-passing unit in a spiral shape around its perimeter. The liquid-passing unit includes a vibrating plate, a vibrating motor is provided on the vibrating plate, and a spiral liquid-discharging pipe is installed on the vibrating plate. The spiral liquid-discharging pipe has a spiral structure. The spiral liquid discharge pipe is provided with a first discharge port, a second discharge port, and a third discharge port in sequence from top to bottom. A first baffle screen, a second baffle screen, and a third baffle screen are respectively inclinedly arranged on the side of the first discharge port, the second discharge port, and the third discharge port. The output ends of the first discharge port, the second discharge port, and the third discharge port are respectively connected to the cavities of the first working chamber, the second working chamber, and the third working chamber. The screen density of the first baffle screen, the second baffle screen, and the third baffle screen decreases at an equal and arithmetic rate. The inner box is located on the central axis of the inner cavity of the outer box. A purification unit is provided at the bottom of the outer box. The purification unit includes an outer bottom box. A feed inlet is opened at the top of the outer bottom box. The top of the feed inlet is connected to the third working chamber through a third mesh. A conveyor belt is provided inside the outer bottom box. The input end of the conveyor belt is located directly below the feed inlet. The output end of the conveyor belt extends horizontally to the outside of the outer bottom box. An inner bottom box is located directly above the conveyor belt. Several sets of rotating rods are arranged at equal intervals along the conveying direction of the conveyor belt inside the inner bottom box. A suction roller is sleeved on the rotating rod. Several sets of damping shock absorbers are distributed in a circular array at the bottom of the vibrating plate. The suction roller is made of magnetic material. The rotating rod is equipped with an electromagnet. One end of the rotating rod is connected to a second motor, and the other end of the rotating rod is rotatably connected to a conductive slip ring. The electromagnet is electrically connected to an electromagnetic adsorption control component through the conductive slip ring. The bottom of the suction roller is slidably attached to the top of the conveyor belt. A collection mechanism is provided on one side of the suction roller. The collection mechanism includes a scraping box, which is arranged parallel to the rotating rod and has an inlet for ingestion on the side near the rotating rod. The bottom of the scraping box has a removal port, and the bottom of the removal port is connected to a collection box. A scraping blade is provided at the opening of the inlet, one side of which slides against the suction roller, and the other side extends downward to the removal port.

2. The green and environmentally friendly printing ink waste liquid recycling and treatment device according to claim 1, characterized in that: The inner box is provided with a first motor at the top center. The output end of the first motor is connected to a main shaft. The bottom of the main shaft passes through the first working chamber, the second working chamber and the third working chamber in sequence along the vertical direction. A set of powder units is sleeved in each of the first working chamber, the second working chamber and the third working chamber.

3. The green and environmentally friendly printing ink waste liquid recycling and treatment device according to claim 2, characterized in that: The powder unit includes a fixed sleeve that is fitted onto the main rotating shaft. Several sets of crossbars are arranged at equal intervals from top to bottom on the outer wall of the fixed sleeve. The sets of crossbars are distributed in a spiral path, and several sets of powder mesh are distributed in a ring array on the crossbars.

4. The green and environmentally friendly printing ink waste liquid recycling and treatment device according to claim 3, characterized in that: The powder mesh includes a mounting frame, on which several sets of horizontal blades and several sets of vertical blades are arranged at equal intervals along the vertical and horizontal directions, and the several sets of horizontal blades and several sets of vertical blades are combined to form a mesh structure.

5. The green and environmentally friendly printing ink waste liquid recycling and treatment device according to claim 1, characterized in that: A material spreading component is installed at the bottom edge of the outer wall of the inner bottom box near the feed inlet. The material spreading component includes two sets of crescent plates symmetrically arranged around the central axis of the inner bottom box. The crescent plates have a fan-shaped cross-section when viewed from above. A material guiding groove is opened at the bottom of the crescent plates. The material guiding groove is inclined, and the height of the side near the central axis of the inner bottom box is higher than that of the other side.

6. A treatment method applied to the green and environmentally friendly printing ink waste liquid recycling and treatment device according to any one of claims 1-5, characterized in that: The processing method includes: Waste liquid is injected into the spiral discharge pipe. When the waste liquid moves to the first discharge port, the larger condensate is intercepted by the first baffle screen. Then, as the waste liquid continues to move, the medium-sized and small-sized condensates are intercepted by the second and third baffle screens, respectively. After the waste liquid passes through the spiral drain pipe, it enters the collection tank for further purification treatment. Simultaneously, the condensate adsorbed on the first baffle screen, the second baffle screen and the third baffle screen are respectively transported to the first working chamber, the second working chamber and the third working chamber; The three groups of condensates, classified by volume, are simultaneously crushed and cut in the first working chamber, the second working chamber, and the third working chamber. After the condensate in the first working chamber is cut off, its volume decreases, and then it enters the second working chamber through the first barrier. As the condensate in the second working chamber is further cut, its volume continues to shrink and it enters the third working chamber through the second barrier. After the cutting in the third working chamber is completed, the crushing process is finished, and the condensed waste residue is obtained; Metals were extracted from the waste residue to obtain metal waste residue and non-metal waste residue.

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