Wastewater treatment device for corrugated carton workshop

Abstract

The invention relates to the technical field of wastewater treatment, and provides a corrugated carton workshop wastewater treatment device which comprises a wastewater treatment box, one side of the wastewater treatment box is provided with an overhaul cleaning groove, one side of the wastewater treatment box is provided with a baffle, and the top of the wastewater treatment box is fixedly connected with a water inlet pipe. A sewage discharge pipe is mounted on the outer wall of the wastewater treatment box, a water outlet pipe is mounted on the other side of the wastewater treatment box, a supporting frame is mounted on the outer wall of the wastewater treatment box, and a filtering mechanism is mounted on one side of the supporting frame and comprises a driving motor fixedly mounted on the outer wall of the supporting frame. By starting a driving motor, a movable block can slide in a reciprocating manner along a guide groove formed in a movable plate, so that a water injection pipe swings in a reciprocating manner, waste water in the corrugated carton workshop is uniformly sprayed on a V-shaped filter screen through the water injection pipe swinging in the reciprocating manner to be filtered, and the efficiency of filtering and impurity removal of the waste water in the corrugated carton workshop is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater treatment device for a corrugated cardboard box workshop. Background Technology

[0002] Corrugated cardboard boxes are rigid paper packaging containers made of corrugated cardboard as the core material. They are made of multiple layers of paper bonded together by a special process. The wastewater treatment equipment in the corrugated cardboard box workshop is an environmentally friendly device that is specially designed to treat the wastewater generated during the production of corrugated cardboard boxes. Its core function is to remove pollutants from the wastewater so that it can be discharged in compliance with standards or recycled. To this end, patent CN119707211B discloses a textile wastewater treatment device, comprising: a treatment tank body, a stirring mechanism, and a treatment agent addition mechanism; the treatment agent addition mechanism is installed at the water inlet end of the treatment tank body, and includes an inlet cylinder, an inlet pipe, a treatment agent delivery pipe, a rotating drum, a rotation drive assembly, a stirring assembly, and several partition plates. The treatment agent addition mechanism of this invention adopts a modular cavity isolation design: a detachable rotating drum pretreatment module is integrated at the inlet end, and four radial sliding partition plates dynamically divide the cavity into independent pretreatment units. Each unit sequentially completes the static water inlet, quantitative locking of the agent, closed stirring, and directional drainage process, eliminating dynamic interference of water flow through physical isolation. The existing technical solutions mentioned above have the following drawbacks: Although the reagents can be quantitatively locked during use, the wastewater from corrugated cardboard box workshops often contains a lot of fiber debris and pulp impurities. Current wastewater treatment devices cannot filter and pre-treat the pulp impurities in the wastewater from corrugated cardboard box workshops, thus affecting the efficiency of wastewater treatment in corrugated cardboard box workshops. Summary of the Invention

[0003] The purpose of this invention is to provide a wastewater treatment device for corrugated cardboard box workshops, which solves the defect that existing wastewater treatment devices for corrugated cardboard box workshops cannot filter and pre-treat pulp impurities in the wastewater.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wastewater treatment device for a corrugated cardboard box workshop, comprising a wastewater treatment tank; The wastewater treatment tank has an inspection and cleaning trough on one side, a baffle on one side, an inlet pipe fixedly connected to the top of the wastewater treatment tank, a drain pipe installed on the outer wall of the wastewater treatment tank, and an outlet pipe installed on the other side of the wastewater treatment tank. The outer wall of the wastewater treatment tank is equipped with a support frame, and a filter mechanism is installed on one side of the support frame; The filtration mechanism includes a drive motor fixedly installed on the outer wall of the support frame. The output shaft of the drive motor is fixedly connected to a first rotating rod via a coupling. A cam is fixedly connected to one end of the first rotating rod. A movable block is fixedly connected to the outer wall of the cam. A movable plate is movably connected to the outer wall of the movable block. A guide groove is provided inside the movable plate. A second rotating rod is fixedly connected to the inner wall of the movable plate. A gear is fixedly connected to the outer wall of the second rotating rod. A main gear is movably connected to the outer wall of the gear. A third rotating rod is fixedly connected to the inner wall of the main gear. A water injection pipe is fixedly connected to the outer wall of the third rotating rod. A flexible hose is fixedly connected to the top of the water injection pipe.

[0005] Preferably, the cam forms a rotating structure with the support frame via the first rotating rod, the movable block forms a sliding structure with the movable plate via the guide groove, the movable plate forms a rotating structure with the wastewater treatment tank via the second rotating rod, and the gear plate forms a rotating structure with the wastewater treatment tank via the second rotating rod.

[0006] Preferably, the gear disc meshes with the main gear, the gear disc is fan-shaped, the main gear forms a rotating structure with the wastewater treatment tank via a third rotating rod, and the water injection pipe forms a rotating structure with the wastewater treatment tank via the third rotating rod.

[0007] Preferably, a half gear is fixedly connected to the outer wall of the first rotating rod, a rack is movably connected to the outer wall of the half gear, a receiving plate is fixedly connected to the outer wall of the rack, a guide rod is fixedly connected to the top of the receiving plate, a support plate is movably connected to the outer wall of the guide rod, a return spring is sleeved on the outer wall of the guide rod, a support rod is fixedly connected to the bottom of the receiving plate, and a V-shaped filter screen is fixedly connected to the bottom end of the support rod.

[0008] Preferably, the half gear meshes with the rack, and the guide rod and the support plate form a sliding structure.

[0009] Preferably, a movable rod is fixedly connected to the top of the receiving plate, an air cylinder is movably connected to the outer wall of the movable rod, a piston is fixedly connected to one end of the movable rod, a first one-way valve is installed on the outer wall of the air cylinder, a second one-way valve is installed on the outer wall of the air cylinder, a first air supply pipe is installed on the outer wall of the air cylinder, a nozzle is fixedly connected to one end of the first air supply pipe, and a second air supply pipe is installed on the outer wall of the air cylinder.

[0010] Preferably, the piston and the air cylinder form a sliding structure, and a one-way valve is provided at the input end of both the first air supply pipe and the second air supply pipe.

[0011] Preferably, a stirring mechanism is installed on the outer wall of the first rotating rod. The stirring mechanism includes a first transmission wheel fixedly installed on the outer wall of the first rotating rod, a transmission belt movably connected to the outer wall of the first transmission wheel, a second transmission wheel movably connected to the inner wall of the transmission belt, a first rotating shaft fixedly connected to the inner wall of the second transmission wheel, a stirring blade fixedly connected to the outer wall of the first rotating shaft, a movable groove opened inside the stirring blade, a second rotating shaft movably connected inside the movable groove, a stirring paddle fixedly connected to the outer wall of the second rotating shaft, and a reagent cylinder installed on the top of the wastewater treatment tank. A solenoid valve is installed on the outer wall of the reagent cylinder.

[0012] Preferably, the first drive wheel is engaged with the drive belt, and the drive belt is engaged with the second drive wheel.

[0013] Preferably, the stirring blades form a rotating structure with the wastewater treatment tank via a first rotating shaft, and the stirring blades form a rotating structure with the stirring paddle via a second rotating shaft. The stirring paddles are arranged in a ring around the central axis of the second rotating shaft, and the stirring paddles have an open design.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When the wastewater treatment device for a corrugated cardboard box workshop is in use, the drive motor is started, causing the wastewater from the corrugated cardboard box workshop to be evenly sprayed onto a V-shaped filter screen through a reciprocating water injection pipe for filtration. This expands the range of wastewater pre-treatment. With the combined action of the up-and-down shaking V-shaped filter screen and the continuously blowing nozzles, the filtered pulp impurities can be filtered and discharged, improving the filtration and impurity removal efficiency of the wastewater. The specific method is as follows: By incorporating a filtration mechanism and activating a drive motor, the movable block can slide back and forth along the guide groove inside the movable plate, thereby causing the movable plate to swing back and forth, which in turn causes the gear plate to swing back and forth, drives the main gear to rotate back and forth, and causes the water injection pipe to swing back and forth. This allows the wastewater from the corrugated cardboard box workshop to be evenly sprayed onto the V-shaped filter screen through the swinging water injection pipe for filtration, thus expanding the scope of wastewater pretreatment and improving the efficiency of filtration and impurity removal for wastewater from the corrugated cardboard box workshop. Furthermore, as the first rotating rod rotates, it drives the half gear to rotate. Since the half gear meshes with the rack, the rack can move up and down. Under the action of the return spring, the V-shaped filter screen can shake up and down, causing the fiber debris and pulp impurities accumulated on its surface to be removed from the surface of the V-shaped filter screen due to vibration, thereby preventing the V-shaped filter screen from becoming clogged and further improving the efficiency of filtering and removing impurities from the wastewater in the corrugated cardboard box workshop. Furthermore, as the receiving plate slides back and forth, it drives the piston, which is fixedly connected to one end of the movable rod, to slide back and forth along the air cylinder. This allows the nozzle to continuously blow air onto the V-shaped filter screen, causing the pulp impurity particles on the V-shaped filter screen to be pushed to the lower side of the V-shaped filter screen under the combined action of air blowing and the tilting of the V-shaped filter screen itself. This facilitates the cleaning of the filtered pulp impurity particles and further improves the efficiency of filtering and removing impurities from the wastewater in the corrugated cardboard box workshop. By setting up a stirring mechanism, the first rotating rod rotates to drive the first transmission wheel to rotate, and the second transmission wheel rotates under the transmission belt, which in turn drives the stirring blades fixedly connected to the outer wall of the first rotating shaft to rotate, thereby facilitating the mixing and treatment of wastewater and reagents. Furthermore, as the stirring blades rotate, the second rotating shaft allows the stirring paddle to rotate along the stirring blades, further improving the efficiency of mixing and treating wastewater and chemicals. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the wastewater treatment tank of the present invention; Figure 4 This is a three-dimensional sectional view of the wastewater treatment tank of the present invention; Figure 5 This is a front view schematic diagram of the filtration mechanism of the present invention; Figure 6 This is a three-dimensional structural diagram of the water injection pipe of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the toothed disc of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the V-shaped filter screen of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the nozzle of the present invention; Figure 10 This is a three-dimensional cross-sectional view of the air cylinder structure of the present invention; Figure 11 This is a front view schematic diagram of the stirring mechanism of the present invention; Figure 12 This is a schematic diagram showing the disassembled structure of the stirring blade of the present invention.

[0016] The following are the annotations in the diagram: 1. Wastewater treatment tank; 2. Inspection and cleaning tank; 3. Baffle; 4. Inlet pipe; 5. Support frame; 6. Filter mechanism; 61. Drive motor; 62. First rotating rod; 621. Half gear; 622. Rack; 623. Receiving plate; 6231. Movable rod; 6232. Air cylinder; 6233. Piston; 6234. First one-way valve; 6235. Second one-way valve; 6236. First air supply pipe; 6237. Nozzle; 6238. Second air supply pipe; 624. Guide rod; 625. Support plate; 626. Reset spring. 627. Spring; 628. Support rod; 629. V-shaped filter screen; 63. Cam; 64. Movable block; 65. Movable plate; 651. Guide groove; 652. Second rotating rod; 653. Gear plate; 66. Main gear; 67. Third rotating rod; 68. Water injection pipe; 69. Hose; 7. Stirring mechanism; 71. First transmission wheel; 72. Transmission belt; 73. Second transmission wheel; 74. First rotating shaft; 75. Stirring blade; 751. Movable groove; 752. Second rotating shaft; 753. Stirring paddle; 8. Sewage pipe; 9. Chemical cylinder; 10. Solenoid valve; 11. Water outlet pipe. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-12 The present invention provides a wastewater treatment device for a corrugated cardboard box workshop, comprising a wastewater treatment tank 1.

[0019] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a maintenance and cleaning trough 2 is provided on one side of the wastewater treatment tank 1, a baffle 3 is installed on one side of the wastewater treatment tank 1, an inlet pipe 4 is fixedly connected to the top of the wastewater treatment tank 1, a drain pipe 8 is installed on the outer wall of the wastewater treatment tank 1, an outlet pipe 11 is installed on the other side of the wastewater treatment tank 1, a support frame 5 is installed on the outer wall of the wastewater treatment tank 1, and a filter mechanism 6 is installed on one side of the support frame 5. The filter mechanism 6 includes a drive motor 61 fixedly installed on the outer wall of the support frame 5. The output shaft of the drive motor 61 is fixedly connected to a first rotating rod 62 through a coupling. A cam 63 is fixedly connected to one end of the first rotating rod 62. A movable block 64 is fixedly connected to the outer wall of the cam 63. A movable plate 65 is movably connected to the outer wall of the movable block 64. A guide groove 651 is provided inside the movable plate 65. A second rotating rod 652 is fixedly connected to the inner wall of the movable plate 65. The outer wall of the second rotating rod 652 is fixedly connected to... The device includes a geared disc 653, with a main gear 66 movably connected to its outer wall. A third rotating rod 67 is fixedly connected to the inner wall of the main gear 66. A water injection pipe 68 is fixedly connected to the outer wall of the third rotating rod 67. A flexible hose 69 is fixedly connected to the top of the water injection pipe 68. The input end of the flexible hose 69 is connected to the water inlet pipe 4. A cam 63 forms a rotating structure with a support frame 5 via a first rotating rod 62. A movable block 64 forms a sliding structure with a movable plate 65 via a guide groove 651. The movable plate 65 forms a rotating structure with the wastewater treatment tank 1 via a second rotating rod 652. The geared disc 653 forms a rotating structure with the wastewater treatment tank 1 via the second rotating rod 652. The geared disc 653 meshes with the main gear 66. The geared disc 653 is fan-shaped. The main gear 66 forms a rotating structure with the wastewater treatment tank 1 via the third rotating rod 67. The water injection pipe 68 forms a rotating structure with the wastewater treatment tank 1 via the third rotating rod 67.

[0020] By injecting wastewater from the corrugated cardboard box workshop through the inlet pipe 4 and starting the drive motor 61, the cam 63, which is fixedly connected to one end of the first rotating rod 62, can rotate. This causes the movable block 64 to slide back and forth along the guide groove 651 inside the movable plate 65, thereby driving the movable plate 65 to swing back and forth along the bracket installed on the top of the wastewater treatment tank 1. This causes the gear plate 653 to swing back and forth. Since the gear plate 653 is meshed with the main gear 66, the main gear 66 can rotate back and forth, driving the water injection pipe 68, which is fixedly connected to the outer wall of the third rotating rod 67, to swing back and forth. This allows the wastewater from the corrugated cardboard box workshop to be injected into the water injection pipe 68 through the hose 69 installed at the bottom of the inlet pipe 4, and then evenly sprayed onto the V-shaped filter screen 628 for filtration through the swinging water injection pipe 68.

[0021] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Figure 9 and Figure 10As shown, a half gear 621 is fixedly connected to the outer wall of the first rotating rod 62. A rack 622 is movably connected to the outer wall of the half gear 621. A receiving plate 623 is fixedly connected to the outer wall of the rack 622. A guide rod 624 is fixedly connected to the top of the receiving plate 623. A support plate 625 is movably connected to the outer wall of the guide rod 624. The support plate 625 is fixedly installed on the top of the wastewater treatment tank 1. A return spring 626 is sleeved on the outer wall of the guide rod 624. A support rod 627 is fixedly connected to the bottom of the receiving plate 623. A V-shaped filter screen 628 is fixedly connected to the bottom end of the support rod 627. The V-shaped filter screen 628 is inclined. The half gear 621 and the rack 622 are meshed. The guide rod 624 and the support plate 625 form a sliding structure. A movable rod 6231 is fixedly connected to the top of 23. An air cylinder 6232 is movably connected to the outer wall of the movable rod 6231. A piston 6233 is fixedly connected to one end of the movable rod 6231. A first one-way valve 6234 and a second one-way valve 6235 are installed on the outer wall of the air cylinder 6232. A first air supply pipe 6236 is installed on the outer wall of the air cylinder 6232. A nozzle 6237 is fixedly connected to one end of the first air supply pipe 6236. The nozzle 6237 is fixedly installed on the inner wall of the wastewater treatment tank 1. A second air supply pipe 6238 is installed on the outer wall of the air cylinder 6232. The piston 6233 and the air cylinder 6232 form a sliding structure. One-way valves are provided at the input ends of both the first air supply pipe 6236 and the second air supply pipe 6238.

[0022] As the first rotating rod 62 rotates, it drives the half gear 621 to rotate. Since the half gear 621 is meshed with the rack 622, the rack 622 can move upward, causing the receiving plate 623 to move. This causes the V-shaped filter screen 628, which is fixedly connected to the bottom end of the support rod 627, to move upward. At this time, the guide rod 624 slides along the support plate 625 and presses the return spring 626. When the half gear 621 and the rack 622 disengage, under the action of the return spring 626, the guide rod 624 can slide down the support plate 625 quickly, causing the receiving plate 623 to slide down and return to its original position. The V-shaped filter 628, fixedly connected to the bottom end of the support rod 627, moves rapidly downwards and resets. With the continuous rotation of the half-gear 621, the V-shaped filter 628 vibrates up and down, causing the accumulated fiber debris and pulp impurities on its surface to detach from the surface. Because of its V-shape, the pulp impurities gather towards the center. As the receiving plate 623 moves upwards, the piston 6233, fixedly connected to one end of the movable rod 6231, slides along the air cylinder 6232. At this time, the first one-way valve 6234... When the first air supply pipe 6236's inlet valve is closed and the second check valve 6235 is open, while the check valve at the inlet of the second air supply pipe 6238 is closed, the compressed gas in the air cylinder 6232 is delivered to the nozzle 6237 via the first air supply pipe 6236. When the receiving plate 623 moves downward, it causes the piston 6233 to slide down. At this time, the second check valve 6235 closes, while the check valve at the inlet of the second air supply pipe 6238 opens, and the first check valve 6234 is open, allowing the compressed gas in the air cylinder 6232 to be delivered to the nozzle 6237 via the second air supply pipe 6236. Air is delivered to the nozzle 6237 via the air pipe 6238. Therefore, with the reciprocating lifting and lowering movement of the receiving plate 623, the nozzle 6237 can continuously blow air onto the V-shaped filter 628. Under the combined action of air blowing and the tilting of the V-shaped filter 628 itself, the pulp impurity particles on the V-shaped filter 628 are pushed to the lower side of the V-shaped filter 628. Finally, the filtered pulp impurity particles can be discharged by opening the drain pipe 8. The liquid level in the wastewater treatment tank 1 is always lower than the lowest point of the V-shaped filter 628, so that the wastewater will not be discharged through the drain pipe 8.

[0023] Reference Figure 4 , Figure 11 and Figure 12As shown, a stirring mechanism 7 is installed on the outer wall of the first rotating rod 62. The stirring mechanism 7 includes a first transmission wheel 71 fixedly installed on the outer wall of the first rotating rod 62. A transmission belt 72 is movably connected to the outer wall of the first transmission wheel 71. A second transmission wheel 73 is movably connected to the inner wall of the transmission belt 72. A first rotating shaft 74 is fixedly connected to the inner wall of the second transmission wheel 73. A stirring blade 75 is fixedly connected to the outer wall of the first rotating shaft 74. A movable groove 751 is opened inside the stirring blade 75. A second rotating shaft 752 is movably connected inside the movable groove 751. A stirring paddle 753 is fixedly connected to the outer wall of the wastewater treatment tank 1. A chemical cylinder 9 is installed on the top of the wastewater treatment tank 1. A solenoid valve 10 is installed on the outer wall of the chemical cylinder 9. The first drive wheel 71 is meshed with the drive belt 72. The drive belt 72 is meshed with the second drive wheel 73. The stirring blade 75 forms a rotating structure with the wastewater treatment tank 1 through the first rotating shaft 74. The stirring blade 75 forms a rotating structure with the stirring paddle 753 through the second rotating shaft 752. The stirring paddle 753 is arranged in a ring around the central axis of the second rotating shaft 752. The stirring paddle 753 has an open design.

[0024] The rotation of the first rotating rod 62 drives the first transmission wheel 71 to rotate. Since the first transmission wheel 71 is meshed with the transmission belt 72, and the transmission belt 72 is meshed with the second transmission wheel 73, the second transmission wheel 73 can rotate, which drives the stirring blade 75 fixedly connected to the outer wall of the first rotating shaft 74 to rotate. The solenoid valve 10 is activated, which allows the agent in the agent cylinder 9 to fall into the wastewater treatment tank 1. Under the stirring of the stirring blade 75, the wastewater and agent are mixed. As the stirring blade 75 rotates, the stirring paddle 753 comes into contact with the wastewater. Under the action of the second rotating shaft 752, the stirring paddle 753 can rotate along the stirring blade 75 and further mix the wastewater and agent. The treated wastewater is discharged through the outlet pipe 11.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater treatment device for a corrugated cardboard box workshop, comprising a wastewater treatment tank (1); Its features are: The wastewater treatment tank (1) has a maintenance and cleaning trough (2) on one side, a baffle (3) on one side, an inlet pipe (4) fixedly connected to the top of the wastewater treatment tank (1), a sewage pipe (8) installed on the outer wall of the wastewater treatment tank (1), and an outlet pipe (11) installed on the other side of the wastewater treatment tank (1). The outer wall of the wastewater treatment tank (1) is equipped with a support frame (5), and a filter mechanism (6) is installed on one side of the support frame (5). The filtration mechanism (6) includes a drive motor (61) fixedly installed on the outer wall of the support frame (5). The output shaft of the drive motor (61) is fixedly connected to a first rotating rod (62) via a coupling. One end of the first rotating rod (62) is fixedly connected to a cam (63). The outer wall of the cam (63) is fixedly connected to a movable block (64). The outer wall of the movable block (64) is movably connected to a movable plate (65). The movable plate (65) has a guide groove (651) inside. The inner wall of the movable plate (65) is fixedly connected to a second rotating rod (652). The outer wall of the second rotating rod (652) is fixedly connected to a gear disc (653). The outer wall of the gear disc (653) is movably connected to a main gear (66). The inner wall of the main gear (66) is fixedly connected to a third rotating rod (67). The outer wall of the third rotating rod (67) is fixedly connected to a water injection pipe (68). The top of the water injection pipe (68) is fixedly connected to a flexible hose (69).

2. The wastewater treatment device for a corrugated cardboard box workshop according to claim 1, characterized in that: The cam (63) forms a rotating structure with the support frame (5) through the first rotating rod (62), the movable block (64) forms a sliding structure with the movable plate (65) through the guide groove (651), the movable plate (65) forms a rotating structure with the wastewater treatment tank (1) through the second rotating rod (652), and the gear plate (653) forms a rotating structure with the wastewater treatment tank (1) through the second rotating rod (652).

3. The wastewater treatment device for a corrugated cardboard box workshop according to claim 1, characterized in that: The gear disc (653) is meshed with the main gear (66). The gear disc (653) is fan-shaped. The main gear (66) forms a rotating structure with the wastewater treatment tank (1) through the third rotating rod (67). The water injection pipe (68) forms a rotating structure with the wastewater treatment tank (1) through the third rotating rod (67).

4. The wastewater treatment device for a corrugated cardboard box workshop according to claim 1, characterized in that: A half gear (621) is fixedly connected to the outer wall of the first rotating rod (62). A rack (622) is movably connected to the outer wall of the half gear (621). A receiving plate (623) is fixedly connected to the outer wall of the rack (622). A guide rod (624) is fixedly connected to the top of the receiving plate (623). A support plate (625) is movably connected to the outer wall of the guide rod (624). A return spring (626) is sleeved on the outer wall of the guide rod (624). A support rod (627) is fixedly connected to the bottom of the receiving plate (623). A V-shaped filter screen (628) is fixedly connected to the bottom end of the support rod (627).

5. The wastewater treatment device for a corrugated cardboard box workshop according to claim 4, characterized in that: The half gear (621) meshes with the rack (622), and the guide rod (624) and the support plate (625) form a sliding structure.

6. The wastewater treatment device for a corrugated cardboard box workshop according to claim 4, characterized in that: A movable rod (6231) is fixedly connected to the top of the receiving plate (623). An air cylinder (6232) is movably connected to the outer wall of the movable rod (6231). A piston (6233) is fixedly connected to one end of the movable rod (6231). A first one-way valve (6234) is installed on the outer wall of the air cylinder (6232). A second one-way valve (6235) is installed on the outer wall of the air cylinder (6232). A first air supply pipe (6236) is installed on the outer wall of the air cylinder (6232). A nozzle (6237) is fixedly connected to one end of the first air supply pipe (6236). A second air supply pipe (6238) is installed on the outer wall of the air cylinder (6232).

7. The wastewater treatment device for a corrugated cardboard box workshop according to claim 6, characterized in that: The piston (6233) and the air cylinder (6232) form a sliding structure, and the input ends of the first air supply pipe (6236) and the second air supply pipe (6238) are both equipped with one-way valves.

8. The wastewater treatment device for a corrugated cardboard box workshop according to claim 1, characterized in that: A stirring mechanism (7) is installed on the outer wall of the first rotating rod (62). The stirring mechanism (7) includes a first transmission wheel (71) fixedly installed on the outer wall of the first rotating rod (62). A transmission belt (72) is movably connected to the outer wall of the first transmission wheel (71). A second transmission wheel (73) is movably connected to the inner wall of the transmission belt (72). A first rotating shaft (74) is fixedly connected to the inner wall of the second transmission wheel (73). A stirring blade (75) is fixedly connected to the outer wall of the first rotating shaft (74). A movable groove (751) is opened inside the stirring blade (75). A second rotating shaft (752) is movably connected inside the movable groove (751). A stirring paddle (753) is fixedly connected to the outer wall of the second rotating shaft (752). A reagent cylinder (9) is installed on the top of the wastewater treatment tank (1). A solenoid valve (10) is installed on the outer wall of the reagent cylinder (9).

9. A wastewater treatment device for a corrugated cardboard box workshop according to claim 8, characterized in that: The first drive wheel (71) is engaged with the drive belt (72), and the drive belt (72) is engaged with the second drive wheel (73).

10. A wastewater treatment device for a corrugated cardboard box workshop according to claim 8, characterized in that: The stirring blade (75) forms a rotating structure with the wastewater treatment tank (1) via the first rotating shaft (74). The stirring blade (75) forms a rotating structure with the stirring paddle (753) via the second rotating shaft (752). The stirring paddle (753) is arranged in a ring around the central axis of the second rotating shaft (752). The stirring paddle (753) has an open design.

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