A water-based ink printing wastewater recovery device
By designing a water-based ink printing wastewater recovery device with a multi-stage filtration system, the problem of drainage pipe blockage caused by fiber residue in the wastewater was solved, achieving efficient fiber residue cleaning and wastewater reuse.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XUZHOU YONGFENG TECH CO LTD
- Filing Date
- 2026-05-19
- Publication Date
- 2026-06-26
Smart Images
Figure CN122273175A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of printing wastewater treatment equipment technology, specifically to a water-based ink printing wastewater recovery device. Background Technology
[0002] Currently, water-based ink printing generates a large amount of wastewater. When this wastewater is discharged, it carries a lot of paper fiber residue, which can easily clog the inside of the drainage pipes, thereby reducing the flow rate within the pipes. It also makes it difficult to reuse the wastewater later. Summary of the Invention
[0003] To address the aforementioned technical shortcomings, the present invention aims to provide a water-based ink printing wastewater recycling device, which has advantages such as improving the filtration effect on fiber residues in wastewater through multi-stage filtration.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a water-based ink printing wastewater recycling device, comprising: The feed hopper has open side walls; The slag pressing and water filtering assembly is installed at the opening on the side wall of the feed box; Multiple water guide pipes are provided, and all of them are connected to the sludge pressing and water filtering assembly. The recycling bin is located outside the feed bin and is connected to the slag-pressing and water-filtering assembly via a water pipe. The slag pressing and filtration assembly includes a slag pressing box located at the opening on the side wall of the feed box. The slag pressing box is connected to the recovery box via a water guide pipe. The side wall of the slag pressing box near the feed box is open, and the opening on the side wall of the slag pressing box is connected to the opening on the side wall of the feed box. A push cylinder is installed on the top of the slag pressing box. A compression spring is coaxially installed on the piston rod of the push cylinder. A filter pressing box is installed at the end of the compression spring away from the push cylinder. A water intercepting plate is slidably installed on the side wall of the filter pressing box near the feed box, and the water intercepting plate is vertically installed in the opening on the side wall of the feed box. A filter plate is connected to the bottom surface of the filter pressing box via a spring telescopic rod. The recycling bin includes a box body located outside the feed box, a filter plate assembly inside the box body, and multiple drain pipes at the bottom of the box body.
[0005] Preferably, one end of each of the plurality of water guide pipes is connected to the slag pressing box along its length, and the other ends of the plurality of water guide pipes are distributed at intervals along the horizontal direction at the top of the recovery box, so that the water filtered by the slag pressing box can flow into the recovery box through the water guide pipes.
[0006] Preferably, the bottom surface of the feed box and the bottom surface of the water interceptor are both inclined, and the bottom surface of the water interceptor abuts against the bottom surface of the feed box. The width of the opening on the side wall of the feed box is adapted to the width of the water interceptor, so that the wastewater in the feed box can flow into the slag pressing box when the water interceptor does not block it.
[0007] Preferably, the filter plate assembly includes: Left crossbar; The right horizontal bar, left horizontal bar and right horizontal bar are respectively set horizontally on the two opposing inner walls of the recycling bin; The filter plates are arranged in multiples, and are vertically arranged between the left and right horizontal bars. The two opposite ends of the filter plates are movably inserted into the left and right horizontal bars, which facilitates the flow of water into the recovery tank to the filter plate assembly for filtration.
[0008] Preferably, the filter plate comprises: The middle plate, with its two opposing side walls respectively movably inserted into the left and right crossbars; A pivot is movably inserted through the middle plate, and the axis of the pivot coincides with the center line of the middle plate. There are two rotating disks, one at each end of the rotating disk, and the rotating disks are coaxial with the rotating shaft. The rotating disk has multiple hooks, which are evenly distributed along the outer peripheral wall of the rotating disk. The upper filter plate is set on the top surface of the middle plate, and the upper filter plates on two adjacent middle plates abut against each other. The lower filter plate is set on the bottom surface of the middle plate, and the lower filter plates on two adjacent middle plates abut against each other. The hooks on the upper filter plate, the lower filter plate and the rotating disc can filter and block the fiber residue in the water flow.
[0009] Preferably, a T-shaped guide groove is vertically provided on the side wall of the water intercepting plate near the filter pressure box, and a T-shaped guide block adapted to the T-shaped guide groove is provided on the side wall of the filter pressure box near the feed box end. The T-shaped guide block is slidably disposed in the T-shaped guide groove, which facilitates the water intercepting plate to move up and down along the T-shaped guide groove, thereby realizing the opening and closing of the opening on the side wall of the feed box, so as to whether the wastewater in the feed box can flow.
[0010] Preferably, the distance from the bottom surface of the filter press box to the filter plate is adapted to the height of the T-shaped guide groove, so that after the water-cutting plate closes the opening on the side wall of the feed box, the bottom surface of the filter press box can be pressed against the top surface of the filter plate.
[0011] Preferably, a sealing ring with a matching shape is provided on the outer peripheral wall of the water-cutting plate along the circumferential direction. The sealing ring abuts against the bottom surface of the feed box and the side wall of the feed box, which helps to improve the sealing performance of the water-cutting plate after the opening of the side wall of the feed box is closed.
[0012] The beneficial effects of the present invention are as follows: 1. The present invention, through the set slag-pressing and water-filtering components and filter plate components, can perform multi-stage filtration of wastewater, which is beneficial to improving the cleaning effect of fiber residues in wastewater, thereby increasing the sewage discharge rate; at the same time, it is also convenient for the recycled wastewater to be treated and reused.
[0013] 2. The filter plate is movably inserted between the left and right crossbars, which makes it easy to remove and replace or clean the filter plate after a period of use, thereby improving the cleaning effect of fiber residue in wastewater.
[0014] 3. The rotating disc is mounted on the middle plate by rotating shaft, and hooks are provided on the outer peripheral wall of the rotating disc. Therefore, the rotating disc can rotate under the impact of wastewater, thereby avoiding or reducing the excessive concentration of fiber residue on the outside of the rotating disc and reducing the removal effect of fiber residue. Attached Figure Description
[0015] 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of a water-based ink printing wastewater recycling device provided in an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of the internal structure of a water-based ink printing wastewater recycling device provided in an embodiment of the present invention.
[0018] Figure 3 This is a schematic diagram of the slag-pressing and filtration component of a water-based ink printing wastewater recovery device provided in an embodiment of the present invention.
[0019] Figure 4 This is a schematic diagram of the position structure of the T-shaped guide block in an embodiment of the present invention for a water-based ink printing wastewater recycling device.
[0020] Figure 5 This is a schematic diagram showing the positions of the left and right crossbars of a water-based ink printing wastewater recycling device provided in an embodiment of the present invention.
[0021] Figure 6 This is a schematic diagram of the filter plate structure of a water-based ink printing wastewater recycling device provided in an embodiment of the present invention.
[0022] Figure 7A schematic diagram of the rotating disk structure of a water-based ink printing wastewater recycling device provided in an embodiment of the present invention.
[0023] Explanation of reference numerals in the attached drawings: 1. Feed box; 2. Slag pressing and water filtering assembly; 21. Slag pressing box; 22. Push cylinder; 23. Compression spring; 24. Filter pressing box; 241. T-shaped guide block; 25. Water intercepting plate; 251. T-shaped guide groove; 26. Filter plate; 27. Spring telescopic rod; 3. Water guide pipe; 4. Recovery box; 41. Filter plate assembly; 411. Left crossbar; 412. Right crossbar; 413. Filter plate; 4131. Intermediate plate; 4132. Rotating shaft; 4133. Rotating disk; 4134. Hook; 4135. Upper filter plate; 4136. Lower filter plate; 42. Box body; 43. Drain pipe. Detailed Implementation
[0024] 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, and 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.
[0025] Example 1 like Figures 1 to 4As shown, this invention provides a water-based ink printing wastewater recovery device, including a feeding box 1 with an open side wall; a slag-pressing and filtration assembly 2 disposed at the opening of the side wall of the feeding box 1; multiple water guide pipes 3, all of which are connected to the slag-pressing and filtration assembly 2; a recovery box 4 disposed outside the feeding box 1 and connected to the slag-pressing and filtration assembly 2 via the water guide pipes 3; the slag-pressing and filtration assembly 2 includes a slag-pressing box 21 disposed at the opening of the side wall of the feeding box 1. The slag pressing box 21 is connected to the recovery box 4 via a water guide pipe 3. The side wall of the slag pressing box 21 near the feed box 1 is open, and the opening of the side wall of the slag pressing box 21 is connected to the opening of the side wall of the feed box 1. A push cylinder 22 is installed on the top of the slag pressing box 21. A compression spring 23 is coaxially installed on the piston rod of the push cylinder 22. A filter pressure box 24 is installed at the end of the compression spring 23 away from the push cylinder 22. A water-cutting plate 25 is slidably installed on the side wall of the filter pressure box 24 near the feed box 1. A water-cutting plate 25 is vertically installed inside the side wall opening of the feed box 1. A filter plate 26 is connected to the bottom surface of the filter pressure box 24 via a spring telescopic rod 27. The recovery box 4 includes a box body 42 located outside the feed box 1. A filter plate assembly 41 is installed inside the box body 42. Multiple drain pipes 43 are installed at the bottom of the box body 42. One end of each of the multiple water guide pipes 3 is connected to the slag pressing box 21 along its length. The other ends of the multiple water guide pipes 3 are distributed horizontally at intervals on the top of the recovery box 4. This facilitates the flow of water filtered through the slag press 21 into the recovery tank 4 via the water guide pipe 3; a T-shaped guide groove 251 is vertically arranged on the side wall of the water intercepting plate 25 near the filter press 24, and a T-shaped guide block 241 adapted to the T-shaped guide groove 251 is arranged on the side wall of the filter press 24 near the feed box 1, and the T-shaped guide block 241 is slidably arranged in the T-shaped guide groove 251; the distance from the bottom surface of the filter press 24 to the filter plate 26 is adapted to the height of the T-shaped guide groove 251.
[0026] First, wastewater is added to the feed box 1. The wastewater in the feed box 1 enters the pressing box 21 through the side wall opening of the feed box 1. The push cylinder 22 is activated to push the filter pressing box 24, filter plate 26, and water intercepting plate 25 towards the bottom surface of the pressing box 21. When the bottom surface of the water intercepting plate 25 contacts the bottom surface of the pressing box 21, the push cylinder 22 continues to push the filter pressing box 24 (the filter pressing box 24 is a box-shaped structure composed of multiple screen plates stacked from top to bottom) and the filter plate 26 (the filter plate 26 is a screen plate-shaped structure) towards the bottom surface of the pressing box 21 until the filter plate 26 contacts the bottom surface of the pressing box 21. (During the movement, the filter plate 26 can filter the fiber residue in the pressing box 21, that is, the wastewater can flow out from the bottom surface of the filter plate 26 to the top surface of the filter plate 26, and at the same time, the fiber residue in the pressing box 21 can be filtered.) The residue is squeezed onto the bottom surface of the slag pressing box 21. As the filter pressing box 24 continues to move (the bottom surface of the filter pressing box 24 can contact the top surface of the filter plate 26, so that the fiber residue mixed in the wastewater flowing out from the top surface of the filter plate 26 can be filtered again through the filter pressing box 24, so that the fiber residue can be trapped between the bottom surface of the filter pressing box 24 and the top surface of the filter plate 26. The wastewater filtered through the fiber residue in the slag pressing box 21 can flow into the recovery box 4 through the water guide pipe 3); at the same time, when the bottom of the T-shaped guide block 241 abuts against the bottom of the T-shaped guide groove 251, the bottom surface of the water intercepting plate 25 can be pressed against the bottom surface of the slag pressing box 21, so as to prevent the wastewater in the feed box 1 from continuing to flow into the slag pressing box 21; the wastewater entering the recovery box 4 (box body 42) is filtered again by the filter plate assembly 41 and discharged through the drain pipe 43.
[0027] Valves are installed on the water pipes 3 to close them before the wastewater in the feed box 1 enters the slag pressing box 21, so as to prevent the unfiltered wastewater in the slag pressing box 21 from directly entering the recovery box 4; and after the wastewater in the slag pressing box 21 has been filtered, the valves can be opened to allow the wastewater in the slag pressing box 21 to enter the recovery box 4.
[0028] When the wastewater in the feed box 1 is fed into the slag pressing box 21 through the side wall opening of the feed box 1, the valve on the water guide pipe 3 is first closed, and the push cylinder 22 is activated to move the filter pressing box 24, filter plate 26 and water intercepting plate 25 away from the bottom surface of the slag pressing box 21. At this time, the wastewater in the feed box 1 enters the slag pressing box 21 through the side wall opening of the feed box 1. Then, the push cylinder 22 is activated to move the filter pressing box 24, filter plate 26 and water intercepting plate 25 towards the bottom surface of the slag pressing box 21. When the bottom surface of the water intercepting plate 25 comes into contact with the bottom surface of the slag pressing box 21, the valve on the water guide pipe 3 is opened, so that the wastewater in the slag pressing box 21 enters the recovery box 4 (box body 42) after filtration. Then, the wastewater can be filtered and discharged in stages through the slag pressing box 21, which improves the cleaning effect of fiber residue in the wastewater.
[0029] Example 2 Based on Example 1, such as Figures 1 to 3 As shown, the bottom surface of the feed box 1 and the bottom surface of the water interceptor 25 are both inclined, and the bottom surface of the water interceptor 25 abuts against the bottom surface of the feed box 1. The width of the opening on the side wall of the feed box 1 is adapted to the width of the water interceptor 25. A sealing ring of a suitable shape is provided circumferentially on the outer peripheral wall of the water interceptor 25, and the sealing ring abuts against the bottom surface of the feed box 1 and the side wall of the feed box 1. The height of the bottom surface of the feed box 1 at the end away from the slag pressing box 21 is greater than the height of the feed box 1 at the end near the slag pressing box 21, which facilitates... Wastewater in feed box 1 flows into slag pressing box 21; when the bottom surface of the water-blocking plate 25 abuts against the bottom surface of feed box 1, the wastewater in feed box 1 stops flowing into slag pressing box 21 (the sealing ring helps to improve the sealing between the water-blocking plate 25 and feed box 1), which is beneficial for removing impurities from the wastewater flowing into slag pressing box 21; when the bottom surface of the water-blocking plate 25 does not contact the bottom surface of feed box 1, the wastewater in feed box 1 can flow into slag pressing box 21 for filtration.
[0030] Example 3 Based on Example 1, such as Figures 1 to 2 , Figures 5 to 7 As shown, the filter plate assembly 41 includes a left crossbar 411; the left crossbar 411 and the right crossbar 412 are horizontally arranged on opposite inner walls of the recycling bin 4; multiple filter plates 413 are provided, and the filter plates 413 are vertically arranged between the left crossbar 411 and the right crossbar 412, with opposite ends of the filter plates 413 movably inserted into the left crossbar 411 and the right crossbar 412 respectively; the filter plate 413 includes a middle plate 4131, with opposite side walls of the middle plate 4131 movably inserted into the left crossbar 411 and the right crossbar 412 respectively; The shaft 4132 moves through the intermediate plate 4131, and the axis of the shaft 4132 coincides with the center line of the intermediate plate 4131; two rotating disks 4133 are provided, and the two rotating disks 4133 are respectively provided at both ends of the rotating disk 4133, and the rotating disks 4133 and the shaft 4132 are coaxial; multiple hooks 4134 are provided, and the multiple hooks 4134 are evenly distributed along the outer peripheral wall of the rotating disk 4133; the upper filter plate 4135 is provided on the top surface of the intermediate plate 4131; the lower filter plate 4136 is provided on the bottom surface of the intermediate plate 4131.
[0031] When the wastewater in the slag pressing box 21 flows through the water guide pipe 3 into the box body 42 and onto the filter plate assembly 41, it first passes through the upper filter plate 4135 for filtration; then it flows through the outer peripheral wall of the rotating disc 4133, where the fiber residue in the wastewater can be caught on the barbs 4134 by the baffle hooks; the wastewater passing through the rotating disc 4133 then passes through the lower filter plate 4136 for filtration, and finally is discharged through the drain pipe 43 via the lower filter plate 4136.
[0032] After the filter plate 413 has been used for a period of time, it can be removed and replaced or cleaned between the left crossbar 411 and the right crossbar 412 (both the left crossbar 411 and the right crossbar 412 are provided with slots that are compatible with the middle plate 4131, so that the middle plate 4131 can be installed or removed), thereby improving the cleaning effect of fiber residue in wastewater.
[0033] The upper filter plates 4135 on two adjacent intermediate plates 4131 abut against each other, and the lower filter plates 4136 on two adjacent intermediate plates 4131 abut against each other, and the outer peripheral wall of each upper filter plate 4135 abuts against the inner peripheral wall of the box 42; so that the wastewater flowing into the box 42 through the water guide pipe 3 flows to each upper filter plate 4135 and is not directly discharged through the drain pipe 43.
[0034] Since the rotating disk 4133 is rotatably mounted on the intermediate plate 4131 via the rotating shaft 4132, and hooks 4134 are provided on the outer peripheral wall of the rotating disk 4133, the rotating disk 4133 can rotate under the impact of wastewater, thereby avoiding or reducing the excessive concentration of fiber residue on the outside of the rotating disk 4133 and reducing the removal effect of fiber residue.
[0035] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A water-based ink printing wastewater recycling device, characterized in that, include: Feed box (1), the side wall of feed box (1) is open; The slag pressing and water filtering assembly (2) is located at the side wall opening of the feed box (1); Water guide pipe (3), multiple water guide pipes (3) are provided, and multiple water guide pipes (3) are connected to the slag filter water assembly (2); The recycling box (4) is located outside the feed box (1) and is connected to the slag-pressing and water-filtering assembly (2) through the water guide pipe (3); The slag pressing and water filtration assembly (2) includes a slag pressing box (21) located at the opening of the side wall of the feed box (1). The slag pressing box (21) is connected to the recovery box (4) through a water guide pipe (3). The side wall of the slag pressing box (21) near the feed box (1) is open. The opening of the side wall of the slag pressing box (21) is connected to the opening of the side wall of the feed box (1). A push cylinder (22) is provided on the top of the slag pressing box (21). A compression spring (23) is coaxially provided on the piston rod of the push cylinder (22). A filter pressing box (24) is provided at the end of the compression spring (23) away from the push cylinder (22). A water intercepting plate (25) is slidably provided on the side wall of the filter pressing box (24) near the feed box (1). The water intercepting plate (25) is vertically provided in the opening of the side wall of the feed box (1). A filter plate (26) is connected to the bottom surface of the filter pressing box (24) through a spring telescopic rod (27). The recycling bin (4) includes a box body (42) located outside the feed box (1), a filter plate assembly (41) is provided inside the box body (42), and multiple drain pipes (43) are provided at the bottom of the box body (42).
2. The water-based ink printing wastewater recycling device as described in claim 1, characterized in that, One end of each of the multiple water pipes (3) is connected to the slag box (21) along its length, and the other ends of the multiple water pipes (3) are distributed at intervals along the horizontal direction on the top of the recovery box (4).
3. The water-based ink printing wastewater recycling device as described in claim 1, characterized in that, The bottom surface of the feed box (1) and the bottom surface of the water-cutting plate (25) are both inclined, and the bottom surface of the water-cutting plate (25) abuts against the bottom surface of the feed box (1). The width of the opening of the side wall of the feed box (1) is matched with the width of the water-cutting plate (25).
4. The water-based ink printing wastewater recycling device as described in claim 1, characterized in that, The filter plate assembly (41) includes: Left horizontal bar (411); The right crossbar (412), the left crossbar (411) and the right crossbar (412) are respectively horizontally set on the two opposing inner walls of the recycling bin (4); Filter plate (413), multiple filter plates (413) are provided. The filter plates (413) are vertically arranged between the left crossbar (411) and the right crossbar (412), and the two opposite ends of the filter plates (413) are respectively movably inserted into the left crossbar (411) and the right crossbar (412).
5. The water-based ink printing wastewater recycling device as described in claim 4, characterized in that, Filter plate (413) includes: The middle plate (4131) has two opposing side walls that are movably inserted into the left crossbar (411) and the right crossbar (412), respectively. A rotating shaft (4132) is movably inserted through the intermediate plate (4131), and the center line of the rotating shaft (4132) coincides with the center line of the intermediate plate (4131). There are two rotating disks (4133), which are respectively located at both ends of the rotating disk (4133). The rotating disks (4133) are coaxial with the rotating shaft (4132). The hook (4134) is provided in multiple ways, and the multiple hooks (4134) are evenly distributed along the outer peripheral wall of the rotating disk (4133); The upper filter plate (4135) is disposed on the top surface of the intermediate plate (4131), and the upper filter plates (4135) on two adjacent intermediate plates (4131) abut against each other; The lower filter plate (4136) is disposed on the bottom surface of the intermediate plate (4131), and the lower filter plates (4136) on two adjacent intermediate plates (4131) abut against each other.
6. The water-based ink printing wastewater recycling device as described in claim 1, characterized in that, A T-shaped guide groove (251) is vertically arranged on the side wall of the water-cutting plate (25) near the filter pressure box (24). A T-shaped guide block (241) that matches the T-shaped guide groove (251) is arranged on the side wall of the filter pressure box (24) near the feed box (1). The T-shaped guide block (241) is slidably arranged in the T-shaped guide groove (251).
7. The water-based ink printing wastewater recycling device as described in claim 1, characterized in that, The distance from the bottom of the filter press (24) to the filter plate (26) is matched with the height of the T-shaped guide groove (251).
8. The water-based ink printing wastewater recovery device as described in claim 3, characterized in that, A sealing ring with a matching shape is provided on the outer peripheral wall of the water-cutting plate (25) along the circumferential direction. The sealing ring abuts against the bottom surface of the feed box (1) and the side wall of the feed box (1).