A printing ink waste liquid recovery and treatment equipment

Abstract

This invention relates to the field of wastewater treatment technology and discloses a waste ink recycling and treatment device for printing, including a separation tank, a fixed sealing plate, a transmission pipe, and a connecting cover. The fixed sealing plate has a rectangular groove at its top, and the connecting cover is installed inside the rectangular groove. The transmission pipe is continuously bent, with one end penetrating the fixed sealing plate and the other end connected to a connecting pipe for connecting to a water transmission pipe. A guide pipe is inserted into the end of the transmission pipe inside the separation tank, and a screening frame is installed inside the separation tank. Compared with existing technologies, this invention allows wastewater to enter the separation tank through the guide pipe and flow along the inside of a rotating sleeve. The guide plate, combined with the guide pipe, drives the rotating sleeve to rotate. Wastewater discharged from the upper end of the transmission tank passes through an adsorption shaft, separating filamentous dirt and impurities from the wastewater and winding them onto the adsorption shaft for easy cleaning and maintenance. This allows for step-by-step separation of wastewater.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a waste ink recycling and treatment device for printing. Background Technology

[0002] Ink wastewater can be simply classified as dyeing and printing wastewater. Due to the differences in ink raw materials, types, and production processes, the composition of pollutants in the wastewater is quite complex. Ink wastewater usually has very high color and turbidity, which is due to the large amount of pigments and solid particles it contains.

[0003] Large particulate impurities in ink wastewater, such as pigment particles and suspended solids, can easily deposit in pipes and filters, causing blockages and affecting the normal flow of wastewater. The presence of large particulate impurities also increases resistance during the treatment process, thereby reducing treatment efficiency. For example, during coagulation and sedimentation, large particulate impurities may interfere with the coagulation and sedimentation of fine particles and colloidal substances. To address these issues, we propose a waste ink recycling and treatment device for printing to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a waste ink recycling and treatment device for printing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste ink recycling and treatment device for printing, comprising a separation tank, a fixed sealing plate disposed at the top of the separation tank, a transmission pipe disposed on the fixed sealing plate, and a connecting cover. The top of the fixed sealing plate is provided with a rectangular groove, and the connecting cover is installed inside the rectangular groove. The transmission pipe is continuously bent, one end of the transmission pipe penetrates the fixed sealing plate, and the other end of the transmission pipe is connected to a connecting pipe for connecting to a transmission water pipe.

[0006] The transfer pipe is inserted into the separation box, and a guide pipe is installed inside the guide pipe. The guide pipe is used for sewage transfer and separation. The separation box is equipped with a screening frame for separating large particles of dirt and debris. When sewage needs to be separated, the sewage can be introduced into the separation box through the transfer pipe by the action of an external transfer pump. Under the action of water flow, the rotating sleeve on the guide pipe can rotate, which can play an auxiliary separation role, separating filamentous dirt and impurities in the sewage. In conjunction with the function of the screening frame, the sewage can be separated in multiple stages, removing large particles of dirt and impurities inside, reducing the impact on subsequent chemical separation.

[0007] Preferably, multiple sets of compression pipes are installed at the bottom of the connecting cover. Each set of compression pipes is arranged in a uniform array at the bottom of the connecting cover. A suspension frame is installed at the bottom of each set of compression pipes. The suspension frame is rectangular and has multiple mesh plates installed inside. The mesh plates have a "V" shaped cross-section and are used to adsorb impurities suspended on the water surface. This can pre-treat the wastewater that needs to be treated, reduce internal floating matter, and reduce the clogging of the screening frame during the subsequent separation process.

[0008] Preferably, the guide pipe has an annular groove on its surface, and a rotating sleeve is rotatably installed inside the annular groove. Multiple guide plates are installed on the inner wall of the rotating sleeve, and the guide plates are arranged in a ring array inside the rotating sleeve. Multiple transmission grooves are opened on the surface of the guide pipe, and the rotating sleeve is locked in the middle section of the transmission groove. A mesh screen plate is installed at the lower end of the transmission groove. The mesh screen plate can be used to screen the sewage, and the separated sewage is discharged through the inside of the rotating sleeve. The rotating sleeve can be rotated under the action of water flow for sewage-assisted separation.

[0009] Preferably, a positioning ring is installed on the surface of the rotating sleeve. Multiple slots are formed on the surface of the positioning ring, and a snap-fit ​​plate is installed inside each slot. The snap-fit ​​plates are evenly arrayed on the outer wall of the positioning ring. Multiple adsorption shafts are installed at the top of each snap-fit ​​plate. The adsorption shafts are rectangular and elastic, with multiple elastic barbs on their upper surface. A reset ring, made of elastic material, is installed at the top of each adsorption shaft. The adsorption shafts are evenly distributed at the bottom of the reset rings, and multiple elastic baffles are inserted into the reset rings. The elastic baffles and snap-fit ​​plates are staggered, enabling the adsorption shafts to separate filamentous debris and dirt from the wastewater, reducing their entry onto the screening frame and allowing for step-by-step screening to minimize subsequent clogging.

[0010] Preferably, multiple support plates are installed on the inner wall of the guide pipe, and buffer pipes are installed on the support plates. The buffer pipes are inserted into the bottom of the guide pipe, and multiple adsorption pads are installed at the top of the buffer pipes. The buffer pipes can deform under the impact of water flow, adsorbing dirt in the sewage onto the adsorption pads, which facilitates subsequent disassembly and cleaning and reduces the possibility of blockage inside the guide pipes.

[0011] Preferably, one end of the screening frame is concave, and multiple elastic shafts are installed at the top of the screening frame. A movable plate is installed on the elastic shaft, and a fixed ring is installed on the movable plate. Multiple positioning shafts are fixedly connected to the inner wall of the fixed ring. The position of the fixed ring corresponds to the guide pipe. During the rotation of the rotating sleeve, the bottom of the snap-fit ​​plate can be squeezed between the positioning shaft, which can push the interactive plate to move, agitate the sewage inside, and facilitate the separation of suspended solids inside.

[0012] Preferably, a pair of rectangular frames are installed on the movable plate. The rectangular frames are elastic and have a rotating shaft inside. The surface of the rotating shaft abuts against the inner wall of the separation tank. A snap-fit ​​screen plate is clamped at the bottom of the rectangular frames. At least one set of connecting frames is installed at the bottom of the snap-fit ​​screen plate. The connecting frames are elastic and have multiple rubber shafts installed inside. Adsorption plates are installed on the rubber shafts. The adsorption plates have annular grooves inside, and multiple grid plates are provided inside the annular grooves. Multiple tension rods are installed on the inner wall of the connecting frames. The tension rods are arranged in an array on the outside of the rubber shafts and connected to the adsorption plates. With the help of the adsorption plates, debris and dirt in the sewage can be adsorbed and cleaned.

[0013] Preferably, the sieve frame has a fixed groove at its concave bottom end, and a separation sieve plate is installed inside the fixed groove. Multiple buffer frames are installed on the separation sieve plate. The buffer frames and multiple sets of connecting frames are staggered. The buffer frames can abut against the bottom of the snap-fit ​​sieve plate. When the movable plate moves, it causes the buffer frames to squeeze against the snap-fit ​​sieve plate and the separation sieve plate respectively, which can stretch the elastic screen on the surface and reduce the occurrence of blockage.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, after sewage enters the separation box through the guide pipe, the sewage can be discharged through the transmission trough. Some sewage can be cleaned and screened by the action of the grid screen plate and flows through the inside of the rotating sleeve. With the help of the guide plate, the rotating sleeve can be rotated. The sewage discharged from the upper end of the transmission trough can pass through the adsorption shaft, which can separate the filamentous dirt and impurities in the sewage and wrap them interlaced on the adsorption shaft, making it easy to clean and maintain later. It can separate sewage step by step.

[0016] 2. This invention uses the impact of sewage on the surface of the elastic baffle to deform the reset ring, which can stretch the adsorption shaft and squeeze out the dirt and other residues on the adsorption shaft, causing them to accumulate at the connection between the adsorption shaft and the reset ring, thus reducing the impact of accumulation on sewage discharge.

[0017] 3. During the rotation of the rotating sleeve, the bottom of the snap-fit ​​plate can be rotated and set inside the fixed ring. During the rotation, the snap-fit ​​plate can be squeezed between the positioning shaft, and the movable plate can move, thereby driving the buffer frame to squeeze the snap-fit ​​screen plate and the separation screen plate respectively, which can stretch the elastic screen on the surface and reduce the occurrence of blockage.

[0018] 4. The present invention can cause the connecting frame to deform by moving the movable plate, which can stretch the rubber shaft and the tension rod to both sides. The adsorption sheet can deform under the stretching action to adsorb suspended particulate matter in sewage. After resetting, it can discharge the sewage and other residual wastewater in the particulate matter along the grid plate under the squeezing action. The particulate matter can also remain inside the adsorption sheet, playing the role of adsorbing suspended matter. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the separation box of the present invention;

[0021] Figure 3 This is a schematic diagram of the disassembled bottom structure of the connecting cover of the present invention;

[0022] Figure 4 This is a schematic diagram of the sieving frame structure of the present invention;

[0023] Figure 5 This is a partial structural diagram of the snap-fit ​​screen plate of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of a portion of point A in the middle;

[0025] Figure 7 This is a schematic diagram of the bottom structure of the guide tube of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the rotating sleeve of the present invention;

[0027] In the diagram: 1. Separation box; 2. Transfer pipe; 3. Connecting cover; 4. Guide pipe; 5. Screening frame; 11. Fixed sealing plate; 21. Connecting pipe; 31. Compression pipe; 32. Suspension frame; 41. Rotating sleeve; 411. Guide plate; 42. Transfer trough; 43. Positioning ring; 44. Snap-fit ​​plate; 441. Adsorption shaft; 45. Reset ring; 451. Elastic baffle; 46. Buffer pipe; 461. Support plate; 51. Movable plate; 511. Elastic shaft; 52. Separation screen plate; 53. Buffer frame; 54. Rectangular frame; 541. Rotating shaft; 55. Fixed ring; 551. Positioning shaft; 56. Snap-fit ​​screen plate; 57. Connecting frame; 571. Tension rod; 58. Rubber shaft; 581. Adsorption sheet. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-8 The present invention provides a technical solution: a waste ink recycling and treatment device for printing, including a separation box 1, a fixed sealing plate 11 disposed at the top of the separation box 1, a transmission pipe 2 disposed on the fixed sealing plate 11 and a connecting cover 3. The top of the fixed sealing plate 11 is provided with a rectangular groove, the connecting cover 3 is installed inside the rectangular groove, the transmission pipe 2 is in a continuous bending shape, one end of the transmission pipe 2 passes through the fixed sealing plate 11, and the other end of the transmission pipe 2 is provided with a connecting pipe 21, which is used to connect to the transmission water pipe;

[0030] The transfer pipe 2 is inserted into the separation box 1, and a guide pipe 4 is installed inside the pipe 4. The guide pipe 4 is used for sewage transfer and separation. The separation box 1 is equipped with a screening frame 5, which is used for the separation of large particles of dirt and debris. When sewage needs to be separated, the sewage can be introduced into the separation box 1 through the transfer pipe 2 under the action of the external transfer pump. Under the action of water flow, the rotating sleeve 41 on the guide pipe 4 can rotate, which can play an auxiliary separation role, separating filamentous dirt and impurities in the sewage. In conjunction with the function of the screening frame 5, the sewage can be separated in multiple stages, removing large particles of dirt and impurities inside, reducing the impact on subsequent chemical separation.

[0031] like Figure 3 As shown, to avoid clogging during the wastewater separation process, multiple sets of compression pipes 31 are installed at the bottom of the connecting cover 3. Each set of compression pipes 31 is arranged in a uniform array at the bottom of the connecting cover 3. A suspension frame 32 is installed at the bottom of each set of compression pipes 31. The suspension frame 32 is rectangular and has multiple mesh plates installed inside. The mesh plates have a "V" shaped cross-section and are used to adsorb impurities suspended on the water surface. With the help of the mesh plates, suspended debris in the wastewater during the separation process can be adsorbed and separated, which can reduce the efficiency of subsequent screening and reduce subsequent clogging.

[0032] like Figure 7As shown, blockages and siltation may occur during sewage transmission. An annular groove is formed on the surface of the guide pipe 4, and a rotating sleeve 41 is rotatably installed inside the annular groove. Multiple guide plates 411 are installed on the inner wall of the rotating sleeve 41, and the guide plates 411 are arranged in a ring array inside the rotating sleeve 41. Multiple transmission grooves 42 are formed on the surface of the guide pipe 4, and the rotating sleeve 41 is stuck in the middle section of the transmission groove 42. A mesh screen plate is installed at the lower end of the transmission groove 42, which can separate sewage with the help of the mesh screen plate. Some sewage is transmitted along the sewage inside the rotating sleeve 41. With the help of the guide plates 411, the rotating sleeve 41 is rotated, which can cooperate with the external adsorption shaft 441 to separate some of the dirt in the sewage.

[0033] like Figure 7 As shown, wastewater is prone to accumulating filamentous impurities and debris on the screening frame 5, leading to unexpected blockages. A positioning ring 43 is installed on the surface of the rotating sleeve 41. Multiple slots are formed on the surface of the positioning ring 43, and a retaining plate 44 is installed inside each slot. The retaining plates 44 are evenly arrayed on the outer wall of the positioning ring 43. Multiple adsorption shafts 441 are installed at the top of the retaining plates 44. The adsorption shafts 441 are rectangular and elastic, with multiple elastic barbs on their surface. When the rotating sleeve 41 rotates, wastewater discharged from the upper end of the transmission trough 42 can pass through the adsorption shafts 441, separating the filamentous dirt and impurities in the wastewater and interlacing them around the adsorption shafts 44. 1. For ease of subsequent cleaning and maintenance, a reset ring 45 is installed at the top of each adsorption shaft 441. The reset ring 45 is made of elastic material. The adsorption shafts 441 are evenly distributed at the bottom of the reset rings 45. Multiple elastic baffles 451 are inserted into the reset rings 45. The elastic baffles 451 and the snap-fit ​​plate 44 are staggered. As the sewage impacts the surface of the elastic baffles 451, the reset rings 45 can deform, which can stretch the adsorption shafts 441 and squeeze the dirt and other residues on the adsorption shafts 441, causing them to accumulate at the connection between the adsorption shafts 441 and the reset rings 45. This reduces the impact of accumulation on sewage discharge and allows for step-by-step separation of sewage, facilitating subsequent cleaning and maintenance.

[0034] like Figure 8 As shown, in order to reduce the accumulation of dirt inside the guide pipe 4, multiple support plates 461 are installed on the inner wall of the guide pipe 4. Buffer pipes 46 are installed on the support plates 461. The buffer pipes 46 are inserted into the bottom of the guide pipe 4, and multiple adsorption pads are installed at the top of the buffer pipes 46. The buffer pipes 46 can deform under the impact of water flow. With the impact of water flow, the buffer pipes 46 can deform, which can cause the adsorption pads to rub against the inside of the guide pipe 4, reducing the accidental accumulation of dirt residue on the inner wall.

[0035] like Figure 4As shown, one end of the screening frame 5 is concave, and multiple elastic shafts 511 are installed at the top of the screening frame 5. A movable plate 51 is installed on the elastic shaft 511, and a fixed ring 55 is installed on the movable plate 51. Multiple positioning shafts 551 are fixedly connected to the inner wall of the fixed ring 55. The position of the fixed ring 55 corresponds to the guide tube 4. During the rotation of the rotating sleeve 41, the bottom of the snap-fit ​​plate 44 can be rotated and set inside the fixed ring 55. During the rotation, the snap-fit ​​plate 44 can be squeezed between the positioning shafts 551, which can cause the movable plate 51 to move.

[0036] like Figure 5 and Figure 6 As shown, in order to separate the suspended dirt and debris inside, a pair of rectangular frames 54 are installed on the movable plate 51. The rectangular frames 54 are elastic and have a rotating shaft 541 inside. The surface of the rotating shaft 541 abuts against the inner wall of the separation box 1. A snap-fit ​​screen plate 56 is snapped at the bottom of the rectangular frames 54. At least one set of connecting frames 57 is installed at the bottom of the snap-fit ​​screen plate 56. The connecting frames 57 are elastic and have multiple rubber shafts 58 installed inside. Adsorption plates 581 are installed on the rubber shafts 58. The adsorption plates 581 have annular grooves inside, and multiple mesh plates are provided inside the annular grooves. Multiple tension rods 571 are installed on the inner wall of the connecting frame 57. The tension rods 571 are arranged in an array on the outside of the rubber shaft 58 and connected to the adsorption sheet 581. The movable plate 51 can move and push the connecting frame 57 to deform, so that the rubber shaft 58 and the tension rods 571 can be stretched to both sides. The adsorption sheet 581 can deform under the stretching action to adsorb suspended particulate matter in sewage. After resetting, it can be squeezed to discharge the sewage and other residual particulate matter along the grid plate. The particulate matter can also remain inside the adsorption sheet 581.

[0037] like Figure 4 As shown, in order to reduce the accumulation of internal dirt, the concave bottom of the screening frame 5 has a fixing groove, and a separation screen plate 52 is installed inside the fixing groove. Multiple buffer frames 53 are installed on the separation screen plate 52. The buffer frames 53 and multiple sets of connecting frames 57 are staggered. The buffer frames 53 can abut against the bottom of the snap-fit ​​screen plate 56. When the movable plate 51 moves, it causes the buffer frames 53 to squeeze the snap-fit ​​screen plate 56 and the separation screen plate 52 respectively. This can stretch the elastic screen on the surface, reduce the accumulation of debris and dirt on the separation screen plate 52 and the snap-fit ​​screen plate 56, and play an auxiliary cleaning role.

[0038] Working principle: When wastewater needs to be separated, the wastewater is first introduced into the separation tank 1 through the transfer pipe 2 by an external transfer pump. The water flow causes the rotating sleeve 41 on the guide pipe 4 to rotate, which assists in separation, separating filamentous dirt and impurities from the wastewater. Combined with the screening frame 5, multi-stage separation of the wastewater is achieved, removing large particles of dirt and impurities, reducing the impact on subsequent chemical separation. After entering the separation tank 1 through the guide pipe 4, the wastewater is discharged through the transfer trough 42. Some of the wastewater is cleaned and sieved by the mesh screen plate, and then discharged through the rotating sleeve 41. 1. The internal flow, in conjunction with the guide plate 411, can drive the rotating sleeve 41 to rotate. The sewage discharged from the upper end of the external transmission channel 42 can pass through the adsorption shaft 441, which can separate the filamentous dirt and impurities in the sewage and wrap them interlaced on the adsorption shaft 441, making it easy to clean and maintain later. It can separate the sewage step by step. As the sewage impacts the surface of the elastic baffle 451, it can cause the reset ring 45 to deform, which can stretch the adsorption shaft 441 and squeeze the dirt and other residues on the adsorption shaft 441, causing them to accumulate at the connection between the adsorption shaft 441 and the reset ring 45, reducing the accumulation and affecting the sewage discharge.

[0039] Then, during the rotation of the rotating sleeve 41, the bottom of the snap-fit ​​plate 44 can be rotated and set inside the fixed ring 55. During the rotation, the snap-fit ​​plate 44 can be squeezed between the positioning shaft 551, and the movable plate 51 can move, thereby driving the buffer frame 53 to squeeze the snap-fit ​​screen plate 56 and the separation screen plate 52 respectively, which can stretch the elastic screen on the surface and reduce the occurrence of blockage. As the movable plate 51 moves, it can push the connecting frame 57 to deform, which can stretch the rubber shaft 58 and the tension rod 571 to both sides. The adsorption sheet 581 can deform under the stretching action to adsorb suspended particles in the sewage. After resetting, under the squeezing action, the sewage and other residual particles in the particles can be discharged along the grid plate. The particles can also remain inside the adsorption sheet 581 for easy subsequent cleaning and replacement.

[0040] Finally, during the wastewater separation process, when the wastewater overflows the suspended frame 32, the mesh sheet can separate some of the suspended particulate impurities in the wastewater, reducing the floating particulate matter in the wastewater and playing a multi-stage screening role. After the separation is completed, the wastewater can be allowed to settle in the separation box 1 to allow small particulate impurities to settle. Subsequently, the wastewater can be discharged for further treatment with the help of external equipment.

[0041] 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 waste ink recycling and treatment device for printing, comprising a separation tank (1), a fixed sealing plate (11) disposed at the top of the separation tank (1), a transmission pipe (2) disposed on the fixed sealing plate (11), and a connecting cover (3), characterized in that: The top of the fixed sealing plate (11) is provided with a rectangular groove, the connecting cover (3) is installed inside the rectangular groove, the transmission pipe (2) is in a continuous bending shape, one end of the transmission pipe (2) passes through the fixed sealing plate (11), and the other end of the transmission pipe (2) is provided with a connecting pipe (21), the connecting pipe (21) is used to connect the transmission water pipe; The transmission pipe (2) is inserted into the separation box (1) and a guide pipe (4) is installed inside the end of the pipe. The guide pipe (4) is used for sewage transmission and separation. A sieve frame (5) is installed inside the separation box (1). The sieve frame (5) is used for the separation of large particles of dirt and debris. One end of the sieve frame (5) is concave. Multiple elastic shafts (511) are installed at the top of the sieve frame (5). A movable plate (51) is installed on the elastic shaft (511). A fixed ring (55) is installed on the movable plate (51). Multiple positioning shafts (551) are fixedly connected to the inner wall of the fixed ring (55). The position of the fixed ring (55) corresponds to the guide pipe (4). A pair of rectangular frames (54) are installed on the movable plate (51). The rectangular frames (54) are elastic and have a rotating shaft (541) inside. The surface of the rotating shaft (541) abuts against the inner wall of the separation box (1). A snap-fit ​​sieve plate (56) is snapped at the bottom of the rectangular frame (54). At least one set of connecting frames (57) is installed at the bottom of the snap-fit ​​sieve plate (56). The connecting frame (57) is elastic and has multiple rubber shafts (58) installed inside. Adsorption plates (581) are installed on the rubber shafts (58). The adsorption plates (581) have annular grooves inside and multiple grid plates inside the annular grooves. Multiple tension rods (571) are installed on the inner wall of the connecting frame (57). The tension rods (571) are arranged in an array outside the rubber shafts (58) and connected to the adsorption plates (581). The sieve frame (5) has a fixed groove at the concave bottom end, and a separation sieve plate (52) is installed inside the fixed groove. Multiple buffer frames (53) are installed on the separation sieve plate (52). The buffer frames (53) are staggered with multiple sets of connecting frames (57). The buffer frames (53) can abut against the bottom of the snap-fit ​​sieve plate (56).

2. The printing ink waste liquid recycling and treatment equipment according to claim 1, characterized in that: Multiple sets of compression tubes (31) are installed at the bottom of the connecting cover (3). Each set of compression tubes (31) is arranged in a uniform array at the bottom of the connecting cover (3). A suspension frame (32) is installed at the bottom of each set of compression tubes (31). The suspension frame (32) is rectangular. Multiple mesh plates are installed inside the suspension frame (32), and the cross-section of the mesh plates is "V" shaped, which is used to adsorb impurities suspended on the water surface.

3. The printing ink waste liquid recycling and treatment equipment according to claim 1, characterized in that: The guide pipe (4) has an annular groove on its surface, and a rotating sleeve (41) is rotatably installed inside the annular groove. Multiple guide plates (411) are installed on the inner wall of the rotating sleeve (41). The guide plates (411) are arranged in an annular array inside the rotating sleeve (41). Multiple transmission grooves (42) are opened on the surface of the guide pipe (4). The rotating sleeve (41) is locked in the middle section of the transmission groove (42). A mesh screen plate is installed at the lower end of the transmission groove (42).

4. The printing ink waste liquid recycling and treatment equipment according to claim 3, characterized in that: A positioning ring (43) is installed on the surface of the rotating sleeve (41). Multiple slots are provided on the surface of the positioning ring (43), and a snap-fit ​​plate (44) is installed inside the slot. The snap-fit ​​plates (44) are arranged in a uniform array on the outer wall of the positioning ring (43). Multiple adsorption shafts (441) are installed at the top of the snap-fit ​​plate (44). The adsorption shafts (441) are rectangular and elastic. Multiple elastic barbs are provided on the upper surface of the adsorption shafts (441). A reset ring (45) is installed at the top of each adsorption shaft (441). The reset ring (45) is made of elastic material. The adsorption shafts (441) are evenly distributed at the bottom of the reset ring (45). Multiple elastic baffles (451) are inserted on the reset ring (45). The elastic baffles (451) and the snap-fit ​​plates (44) are arranged alternately.

5. The printing ink waste liquid recycling and treatment equipment according to claim 3, characterized in that: Multiple support plates (461) are installed on the inner wall of the guide pipe (4), and a buffer pipe (46) is installed on the support plate (461). The buffer pipe (46) is inserted into the bottom of the guide pipe (4), and multiple adsorption pads are installed at the top of the buffer pipe (46). The buffer pipe (46) deforms under the impact of water flow.

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