An aqueous ink wastewater treatment system

Abstract

The present application belongs to sewage treatment technical field, specifically a kind of water-based ink wastewater treatment system, including air flotation equipment;The vortex cavity air flotation equipment includes: air flotation tank body, scum collection and excretion system and overflow effluent system;It also includes mud scraping mechanism;The mud scraping mechanism includes: circulating chute, the circulating chute is set in the inner surface of both sides of air flotation tank in the air flotation tank body;Sliding block, two The circulating chute is slidably connected with sliding block;Connecting rod, the opposite side end surface of two The sliding block is fixedly connected with connecting rod;Telescopic rod, the outer surface of connecting rod is fixedly connected with two telescopic rods;Float, two The top of telescopic rod is fixedly connected with float;Collecting bin, the right side of circulating chute is provided with collecting bin;The present application is mainly used to solve when using air flotation equipment to treat ink sewage, since the length of scraper is constant, when the water in air flotation tank fluctuates, it will cause the phenomenon of incomplete scraping when the scraper removes waste residue.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically a water-based ink wastewater treatment system. Background Technology

[0002] Water-based inks mainly refer to chemical inks that possess a certain degree of water solubility, prepared by combining various water-soluble polymeric water-based chemical pigments and resins with other water-soluble chemical pigments, dispersants, and other related chemicals and additives through a series of physicochemical reactions. Currently, water-based inks are widely used in the printing and packaging industries, including the printing of books, magazines, and promotional products, as well as paper packaging for products such as tobacco, alcohol, food and beverages, and children's toys.

[0003] The treatment process for water-based ink wastewater is as follows:

[0004] Water-based ink wastewater is collected in a collection tank and then pumped into an equalization tank where it is aerated. The water-based ink wastewater that has been equalized in the equalization tank is then pumped into a rapid mixing tank, where a flocculant, polyacrylamide (PAM), is added under slow stirring to convert suspended organic pollutants such as acrylic resin and colloids in the wastewater into large, visible suspended particles.

[0005] The pretreated ink wastewater is pumped into a chamber filter press using a pneumatic diaphragm pump. The filter press removes all large suspended solids, and the filter cloth is permeated with water for further treatment. The filtrate then enters the filtrate tank.

[0006] The wastewater in the filtrate tank is then pumped into the reaction tank for reaction, and then pumped into the air flotation equipment for treatment. After the above treatment, the wastewater meets the national wastewater discharge standards.

[0007] When using air flotation equipment to treat ink wastewater, because the length of the scraper is constant, fluctuations in the water in the flotation tank can cause the scraper to not completely remove the waste residue. Summary of the Invention

[0008] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a water-based ink wastewater treatment system.

[0009] The technical solution adopted by the present invention to solve its technical problem is: a water-based ink wastewater treatment system of the present invention, including an air flotation device; the air flotation device includes: an air flotation tank, a scum collection and discharge system, an overflow effluent system and an electrical control system;

[0010] The flotation tank includes an aeration tank and a flotation chamber; a vortex aerator is installed in the aeration tank.

[0011] It also includes a sludge scraping mechanism, which is installed inside the flotation tank; the sludge scraping mechanism includes:

[0012] The air flotation tank has circulation chutes on both inner surfaces of the air flotation tank. The circulation chutes are elongated oval chutes, that is, the chutes on the top and bottom sides are parallel chutes, and the chutes on the left and right sides are semi-circular chutes.

[0013] The slider is slidably connected in both of the two circulating grooves, and the slider is a rectangular block; the width of the slider is smaller than the width of the circulating groove.

[0014] A connecting rod is fixedly connected to the opposite end faces of the two sliders;

[0015] The telescopic rod has two telescopic rods fixedly connected to its outer surface, and the telescopic rods are vertically upward.

[0016] Float blocks are fixedly connected to the tops of the two telescopic rods;

[0017] A first rotating rod is rotatably connected to the left side of the circulation chute, located within the inner wall of the air flotation tank. A portion of the first rotating rod extends out of the air flotation tank and is connected to a first motor. A first spool is fixedly connected to the first rotating rod, and a first pull rope is wound around the first spool. The other end of the first pull rope is fixedly connected to a connecting rod. A first contact is provided within the circulation chute on the side closest to the first rotating rod.

[0018] The second rotating rod is rotatably connected to the right side of the circulation chute, located within the inner wall of the air flotation tank. A portion of the second rotating rod extends out of the air flotation tank and is connected to the second motor. A second spool is fixedly connected to the second rotating rod, and a second pull rope is wound around the second spool. The other end of the second pull rope is fixedly connected to a connecting rod. A second contact is provided within the circulation chute on the side closest to the second rotating rod.

[0019] A collection bin is provided on the right side of the circulation chute.

[0020] Preferably, the first rotating rod is positioned at the upper left of the circulating slide; the second rotating rod is positioned at the lower right of the circulating slide.

[0021] The slider is made of plastic.

[0022] Preferably, the inner wall of the slider is provided with evenly arranged ball grooves, and each ball groove is fixedly connected to a spring; each ball groove is rotatably connected to a ball, and the ball extends out of the ball groove under the force of the spring, and the side of the ball extending out of the ball groove is in contact with the circulating slide groove; the ball and the spring are not connected.

[0023] Preferably, the outer surface of the float is covered with a partition layer;

[0024] The partition is connected to the outer surface of the float via Velcro.

[0025] Preferably, the outer surface of the connecting rod is provided with uniformly arranged blades;

[0026] The rotating blade is rotatably connected to the connecting rod.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. The water-based ink wastewater treatment system of the present invention, by setting a float on a telescopic rod, allows the float to move with the fluctuations of the wastewater when the water in the flotation tank fluctuates, thus keeping the float always on the water surface. This scrapes the waste residue on the water surface into the collection bin, avoiding the situation where a fixed scraper would not completely remove the waste residue when the water surface fluctuates. Furthermore, since the maximum length of the telescopic rod and the float is less than the distance from the parallel groove below the circulation chute to the wastewater surface, when the slider slides into the parallel groove below the circulation chute, it can pull the float into the wastewater and slide it towards the first rotating rod. This process prevents the float from remaining on the water surface during its movement towards the first rotating rod, thus avoiding pushing the waste residue towards the first rotating rod and affecting the scraping of the waste residue.

[0029] 2. In the water-based ink wastewater treatment system of the present invention, since the first rotating rod is located at the upper left position of the circulating chute and the second rotating rod is located at the lower right position of the circulating chute, when the first rotating rod rotates and winds the first pull rope, the slider can be pulled from the parallel groove below the circulating chute to the upper half of the semi-circular groove on the left side of the circulating chute through the first pull rope. When the second pull rope pulls the connecting rod, the slider can slide into the parallel groove above the circulating chute more easily. When the second rotating rod rotates and winds the second pull rope, the slider can be pulled from the parallel groove above the circulating chute to the lower half of the semi-circular groove on the right side of the circulating chute through the second pull rope. When the first pull rope pulls the connecting rod, the slider can slide into the parallel groove below the circulating chute more easily, thereby enabling the slider to slide more smoothly and circulate within the circulating chute.

[0030] 3. In the water-based ink wastewater treatment system of the present invention, due to the presence of the rotating blade, the rotating blade will move as the connecting rod moves slowly. During the movement of the rotating blade, it will rotate under the action of the wastewater. During the rotation of the rotating blade, the wastewater can be slightly agitated, thereby accelerating the upward movement of suspended solids in the wastewater. Attached Figure Description

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Figure 1 This is a perspective view of the present invention;

[0033] Figure 2 This is the present invention. Figure 1 Enlarged view of a portion of point A in the middle;

[0034] Figure 3 This is a top view of the present invention;

[0035] Figure 4 This is the present invention. Figure 3 Sectional view at point BB;

[0036] Figure 5 This is the present invention. Figure 4 Enlarged view of a section at point C;

[0037] Figure 6 This is a cross-sectional view of the cooperation between the slider and the circulating groove in this invention.

[0038] In the picture:

[0039] 1. Flotation tank; 11. Aeration tank; 12. Flotation tank; 13. Vortex aerator; 14. Collection bin; 2. Circulation chute; 21. Sliding block; 22. Connecting rod; 23. Telescopic rod; 24. Float; 25. Ball groove; 26. Ball; 27. Partition; 28. Rotating blade; 3. First rotating rod; 31. First motor; 32. First pull rope; 33. Second rotating rod; 34. Second motor; 35. Second pull rope. Detailed Implementation

[0040] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0041] like Figures 1 to 6 As shown, this invention provides a water-based ink wastewater treatment system.

[0042] Includes an air flotation device; the air flotation device includes: an air flotation tank 1, a scum collection and discharge system, an overflow effluent system, and an electrical control system;

[0043] The flotation tank 1 includes an aeration tank 11 and a flotation tank 12; a vortex aerator 13 is installed in the aeration tank 11.

[0044] It also includes a sludge scraping mechanism, which is installed inside the flotation tank 12; the sludge scraping mechanism includes:

[0045] The circulating chute 2 is provided on both inner surfaces of the air flotation tank 12. The circulating chute 2 is an elongated oval chute, that is, the chute on the upper and lower sides is a parallel chute, and the chute on the left and right sides is a semi-circular chute.

[0046] Slider 21: Slider 21 is slidably connected in both of the two circulating grooves 2, and slider 21 is a rectangular block; the width of slider 21 is smaller than the width of circulating groove 2.

[0047] The connecting rod 22 is fixedly connected to the opposite end faces of the two sliders 21.

[0048] Telescopic rod 23, two telescopic rods 23 are fixedly connected to the outer surface of the connecting rod 22, and the telescopic rods 23 are vertically upward;

[0049] Float 24, the top of the two telescopic rods 23 are fixedly connected to float 24;

[0050] The first rotating rod 3 is rotatably connected to the left side of the circulation chute 2, located in the inner wall of the air flotation box 1, and a portion of the first rotating rod 3 extends out of the air flotation box 1 and is connected to the first motor 31; a first spool is fixedly connected to the first rotating rod 3, a first pull rope 32 is wound on the first spool, and the other end of the first pull rope 32 is fixedly connected to the connecting rod 22; a first contact is provided in the circulation chute 2 on the side near the first rotating rod 3;

[0051] The second rotating rod 33 is rotatably connected to the right side of the circulation chute 2, located within the inner wall of the air flotation tank 1. A portion of the second rotating rod 33 extends out of the air flotation tank 1 and is connected to the second motor 34. A second spool is fixedly connected to the second rotating rod 33, and a second pull rope 35 is wound around the second spool. The other end of the second pull rope 35 is fixedly connected to the connecting rod 22. A second contact is provided within the circulation chute 2 on the side closest to the second rotating rod 33.

[0052] Collection chamber 14 is provided on the right side of the circulation chute 2;

[0053] Specifically, when the flotation equipment treats wastewater, the operator first turns on the equipment. Once started, the electrical control system activates the vortex aerator 13. During operation, the aerator 13 separates impurities and suspended solids from the wastewater onto the surface. Simultaneously, the electrical control system controls the second motor 34 to rotate slowly. This rotation drives the second rotating rod 33, which in turn winds the second pull rope 35 around the second spool, causing the connecting rod 22 to slowly move towards the position of the second rotating rod 33. Since the connecting rod 22 is fixedly connected to the two sliders 21, the sliders 21 slide within the circulation trough 2. During the sliding process, slider 21 will first slide from the semi-circular groove on the left side of the circulation chute 2 to the parallel groove above the circulation chute 2. When slider 21 slides to the parallel groove above the circulation chute 2, float 24 will rise to the water surface under its own buoyancy. At the same time, as slider 21 continues to slide in the parallel groove above the circulation chute 2, float 24 will also move from the wastewater surface toward the collection chamber 14. During this process, it can push the waste floating on the wastewater toward the collection chamber 14. When float 24 moves to the position of collection chamber 14, it can push the waste on the wastewater surface into the collection chamber 14. Then, the second pull rope 35 continues to pull slider 21 to slide in the circulation chute 2. At this time, slider 21 will be pulled into the circulation chute. In the semi-circular groove on the upper right of groove 2, when slider 21 moves to the right semi-circular groove, slider 21 will touch the second contact. When the second contact is triggered, the electronic control system controls the second motor 34 to stop rotating, and at the same time controls the first motor 31 to rotate slowly. During the rotation of the first motor 31, it will drive the first rotating rod 3 to rotate. The first rotating rod 3 will wind the first pull rope 32 through the first spool, thereby pulling the connecting rod 22 to move slowly towards the position of the first rotating rod 3. At this time, slider 21 will be pulled into the parallel groove above and below the circulating trough 2, and at the same time, it will pull the second rotating rod 33 to reverse and drive the second motor 34 to reverse. Since the maximum length of the telescopic rod 23 and the float 24 is less than the distance from the parallel groove below the circulating trough 2 to the wastewater surface, thus... The float 24 is pulled into the wastewater and slid towards the position of the first rotating rod 3. When the slider 21 is pulled to the position of the semi-circular groove on the left side of the circulation chute 2, the slider 21 will slide into the semi-circular groove on the left side of the circulation chute 2 and slide in the semi-circular groove on the left side of the circulation chute 2. When the slider 21 touches the first contact, the electronic control system controls the first motor 31 to stop rotating and controls the second motor 34 to rotate. During the rotation of the second motor 34, the second pull rope 35 will pull the connecting rod 22 and the slider 21 to slide into the parallel groove above the circulation chute 2 and move towards the collection chamber 14. At the same time, the first rotating rod 3 is pulled to reverse and the first motor 31 is driven to reverse, so that the waste residue on the surface of the wastewater can be pushed into the collection chamber 14 and thus circulated.

[0054] In this process, by setting the float 24 on the telescopic rod 23, when the water in the flotation tank 12 fluctuates, the float 24 can move with the fluctuation of the wastewater, so that the float 24 always moves on the water surface, thereby scraping the waste residue on the water surface into the collection bin 14. This avoids the situation where the scraper is fixed, and when the water surface fluctuates, the waste residue on the wastewater surface will not be completely scraped off. At the same time, since the maximum length of the telescopic rod 23 and the float 24 is less than the distance from the parallel groove below the circulation chute 2 to the wastewater surface, when the slider 21 slides into the parallel groove below the circulation chute 2, the float 24 can be pulled into the wastewater and slide towards the first rotating rod 3. In this process, it can prevent the float 24 from being on the water surface during the movement of the float 24 towards the first rotating rod 3, thereby pushing the waste residue towards the first rotating rod 3 and affecting the scraping of the waste residue.

[0055] In this embodiment, the first rotating rod 3 is positioned at the upper left of the circulating slide 2; the second rotating rod 33 is positioned at the lower right of the circulating slide 2.

[0056] The slider 21 is made of plastic;

[0057] Specifically, since the first rotating rod 3 is located at the upper left of the circulating slide 2 and the second rotating rod 33 is located at the lower right of the circulating slide 2, when the first rotating rod 3 rotates and winds the first pull rope 32, the slider 21 can be pulled from the parallel groove below the circulating slide 2 to the upper half of the semi-circular groove on the left side of the circulating slide 2 through the first pull rope 32. When the second pull rope 35 pulls the connecting rod 22, the slider 21 can slide into the parallel groove above the circulating slide 2 more easily. When the second rotating rod 33 rotates and winds the second pull rope 35, the slider 21 can be pulled from the parallel groove above the circulating slide 2 to the lower half of the semi-circular groove on the right side of the circulating slide 2 through the second pull rope 35. When the first pull rope 32 pulls the connecting rod 22, the slider 21 can slide into the parallel groove below the circulating slide 2 more easily, so that the slider 21 can slide in the circulating slide 2 more easily.

[0058] Meanwhile, since the slider 21 is made of plastic, and plastic has good corrosion resistance, the service life of the slider 21 can be improved.

[0059] In this embodiment, the inner wall of the slider 21 is provided with evenly arranged ball grooves 25, and each ball groove 25 is fixedly connected to a spring; each ball groove 25 is rotatably connected to a ball 26, and the ball 26 extends out of the ball groove 25 under the action of the spring, and the side of the ball 26 extending out of the ball groove 25 is in contact with the circulating slide 2; the ball 26 is not connected to the spring.

[0060] Specifically, since the ball bearing 26 extends out of the ball bearing groove 25 and fits against the circulating slide 2, the presence of the ball bearing 26 can reduce the friction between the slider 21 and the circulating slide 2 during the sliding process of the slider 21 in the circulating slide 2, thereby preventing the slider 21 from experiencing excessive friction and affecting its sliding. When the slider 21 slides into the semi-circular grooves on the left and right sides of the circulating slide 2, since the semi-circular grooves themselves have a certain curvature and the width of the slider 21 is less than the width of the circulating slide 2, the semi-circular grooves will not hinder the slider 21 from sliding in the semi-circular grooves during the sliding process of the slider 21. At the same time, with the pull of the connecting rod 22 by the first pull rope 32 and the second pull rope 35, the float 24 can always be vertically upward during the circulating rotation, preventing the float 24 from tilting and affecting the slag scraping process.

[0061] In this embodiment, the outer surface of the float 24 is covered with a partition layer 27;

[0062] The partition 27 is connected to the outer surface of the float 24 via Velcro;

[0063] Specifically, since the surface of the float 24 is covered with a partition 27, when the float 24 is scraping off the waste residue, it can avoid direct contact between the float 24 and the waste residue, thus preventing the waste residue from adhering to the float 24. At the same time, since the partition 27 is connected to the float 24 by Velcro, when cleaning or replacement is required, the partition 27 can be directly peeled off from the float 24 for replacement or cleaning, so that the float 24 does not need to be cleaned separately.

[0064] In this embodiment, the outer surface of the connecting rod 22 is provided with uniformly arranged rotating blades 28;

[0065] The rotating blade 28 is rotatably connected to the connecting rod 22;

[0066] Specifically, due to the presence of the rotating blade 28, the rotating blade 28 will move as the connecting rod 22 moves slowly. During the movement of the rotating blade 28, it will rotate under the action of the wastewater. During the rotation of the rotating blade 28, the wastewater can be slightly agitated, thereby accelerating the upward movement of suspended solids in the wastewater.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-based ink wastewater treatment system, comprising an air flotation device; the air flotation device comprising: Flotation tank (1), scum collection and discharge system, overflow system and electrical control system; The flotation tank (1) includes an aeration tank (11) and a flotation tank (12); the aeration tank (11) is equipped with a vortex aerator (13); The feature is that it further includes a sludge scraping mechanism, which is disposed within the flotation tank (12); the sludge scraping mechanism includes: The circulating chute (2) is provided on both sides of the inner surface of the air flotation tank (12); the circulating chute (2) is an elongated oval chute, that is, the chute on the upper and lower sides is a parallel chute, and the chute on the left and right sides is a semi-circular chute. The slider (21) is slidably connected in both of the two circulating grooves (2), and the slider (21) is a rectangular block; the width of the slider (21) is less than the width of the circulating groove (2); The connecting rod (22) is fixedly connected to the opposite end faces of the two sliders (21); Telescopic rod (23), two telescopic rods (23) are fixedly connected to the outer surface of the connecting rod (22), and the telescopic rods (23) are vertically upward; Float (24), the top of the two telescopic rods (23) are fixedly connected to the float (24); The maximum length of the telescopic rod (23) and the float (24) is less than the distance from the parallel channel below the circulating chute (2) to the wastewater surface; The first rotating rod (3) is rotatably connected to the left side of the circulation chute (2) in the inner wall of the air flotation box (1), and the first rotating rod (3) extends out of the air flotation box (1) and is connected to the first motor (31); a first spool is fixedly connected to the first rotating rod (3), a first pull rope (32) is wound on the first spool, and the other end of the first pull rope (32) is fixedly connected to the connecting rod (22); a first contact is provided in the circulation chute (2) on the side close to the first rotating rod (3); The second rotating rod (33) is rotatably connected to the right side of the circulation chute (2) in the inner wall of the air flotation box (1), and part of the second rotating rod (33) extends out of the air flotation box (1) and is connected to the second motor (34); a second spool is fixedly connected to the second rotating rod (33), a second pull rope (35) is wound on the second spool, and the other end of the second pull rope (35) is fixedly connected to the connecting rod (22); a second contact is provided in the circulation chute (2) on the side close to the second rotating rod (33); Collection bin (14) is provided on the right side of the circulation chute (2).

2. The water-based ink wastewater treatment system according to claim 1, characterized in that: The first rotating rod (3) is located at the upper left position of the circulating slide (2); the second rotating rod (33) is located at the lower right position of the circulating slide (2).

3. The water-based ink wastewater treatment system according to claim 1, characterized in that: The slider (21) is made of plastic.

4. The water-based ink wastewater treatment system according to claim 3, characterized in that: The inner wall of the slider (21) is provided with evenly arranged ball grooves (25), and each ball groove (25) is fixedly connected with a spring; each ball groove (25) is rotatably connected with a ball (26), and the ball (26) extends out of the ball groove (25) under the action of the spring, and the side of the ball (26) extending out of the ball groove (25) is in contact with the circulating slide (2); the ball (26) is not connected to the spring.

5. The water-based ink wastewater treatment system according to claim 1, characterized in that: The outer surface of the float (24) is covered with a partition (27).

6. The water-based ink wastewater treatment system according to claim 5, characterized in that: The partition (27) is connected to the outer surface of the float (24) by Velcro.

7. The water-based ink wastewater treatment system according to claim 1, characterized in that: The outer surface of the connecting rod (22) is provided with uniformly arranged blades (28).

8. The water-based ink wastewater treatment system according to claim 7, characterized in that: The rotating blade (28) is rotatably connected to the connecting rod (22).

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