Wastewater treatment device for printing and dyeing wastewater

Abstract

The invention relates to the technical field of printing and dyeing wastewater treatment, and provides a wastewater treatment device for printing and dyeing wastewater, the wastewater treatment device comprises a filter barrel and a water tank, the middle of the top end of the filter barrel is fixedly connected with a placement table, the front and rear ends of the placement table are fixedly connected with electric push rods, and the driving ends of the electric push rods are connected with scrapers through sliding assemblies; a disc is fixedly connected to the inner wall of the filter barrel and located at the bottom of the scraper, rotating rods are rotatably connected to the inner wall of the disc and located on the left side and the right side of the scraper and penetrate through the upper side and the lower side of the disc, and scraper plates are fixedly connected to the outer walls of the rotating rods and located on the upper side of the filter screen. The accumulated solid pollutants are shoveled to the opening of the blow-off pipe to be discharged through the electric push rod, the folded plate, the sliding groove frame, the sliding plate and the scraper, so that treatment of the solid pollutants in the printing and dyeing wastewater is completed, and compared with a traditional treatment method, the mode does not need precipitation and manual fishing, the treatment time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing and dyeing wastewater treatment, and specifically to a wastewater treatment device for printing and dyeing wastewater. Background Art

[0002] As an important part of the textile industry, the printing and dyeing industry generates a large amount of printing and dyeing wastewater during the production process. The printing and dyeing wastewater mainly comes from processes such as fabric dyeing, printing, and rinsing. Its composition is complex and the pollution degree is high. Due to the use of a large amount of dyes, the wastewater has a deep color, seriously affecting the light transmittance of water bodies, and has a high organic matter content. The wastewater contains a large amount of pollutants such as dyes, auxiliaries, and sizing agents. If the printing and dyeing wastewater is directly discharged without effective treatment, it will have a negative impact on environmental elements such as soil and atmosphere, and damage the ecological balance.

[0003] In the traditional printing and dyeing wastewater treatment process, precipitation is a key link. At present, most printing and dyeing sewage is precipitated in a pool. Through natural sedimentation or adding flocculants, the pollutant particles are aggregated and settled to achieve preliminary solid-liquid separation. However, this conventional precipitation method has obvious disadvantages. The solid pollutants after precipitation need to be salvaged manually or with the help of equipment, which not only consumes manpower, material resources and time, but also has cumbersome operations. Moreover, during the salvage process, the staff needs to constantly monitor the precipitation situation. If the solid pollutants cannot be salvaged in time and effectively, they may be resuspended and mixed into the water body again, deteriorating the water quality and affecting the subsequent treatment process.

[0004] Therefore, in order to facilitate the treatment of solid pollutants in printing and dyeing wastewater, improve work efficiency, and prevent solid pollutants from re-mixing into the water body, the present application proposes a wastewater treatment device for printing and dyeing wastewater. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a wastewater treatment device for printing and dyeing wastewater, which solves the problems that traditional printing and dyeing wastewater needs to be precipitated and then salvaged manually or with the help of equipment, consuming manpower, material resources and time, and having cumbersome operations.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wastewater treatment device for printing and dyeing wastewater, comprising a filter barrel and a water tank, a placement platform is fixedly connected to the middle part of the top of the filter barrel, an electric push rod is fixedly connected to the front and rear ends of the placement platform, and the driving ends of the electric push rod are connected to a scraper through a sliding assembly, the inner wall of the filter barrel is located at the bottom of the scraper and is fixedly connected to a disc, and the inner wall of the disc is fixedly connected to a plurality of filter screens, and the front and rear ends of the filter barrel are located at the top of the disc and are fixedly connected to a sewage pipe, the inner wall of the disc is located on the left and right sides of the scraper and is rotatably connected to a rotating rod and penetrates the upper and lower sides of the disc, the outer wall of the rotating rod is located on the upper side of the filter screen and is fixedly connected to a scraper, the bottom end of the filter barrel is located at the lower part of the left rotating rod and is fixedly connected to a motor, the driving end of the motor penetrates the inner wall of the filter barrel and is connected to the rotating rod through a gear set, a collecting cylinder is arranged on the top of the filter barrel, and a shunt pipe is fixedly connected to the upper part of the filter screen in sequence on the lower side of the outer wall of the collecting cylinder, and the bottom end of the shunt pipe is fixedly connected to the upper part of the filter screen corresponding to the top of the filter barrel in sequence; The water tank is arranged on the right side of the filter barrel, and a connecting frame is fixedly connected to the bottom of the left end of the water tank, a water pipe 1 is fixedly connected to the left end of the connecting frame, a water pump is fixedly connected to the left end of the water pipe 1, a water pipe 2 is fixedly connected to the left input end of the water pump, a water pipe 2 is fixedly connected to the bottom of the right end of the filter barrel at the left end, and a drop hopper is fixedly connected to the inner wall on the right side of the top of the water tank and passes through the inside and outside of the water tank; here, the waste water gathered after filtering in the filter barrel forms a channel in the water pipe 1 and the water pipe 2, and the water pump is used to pump the waste water into the water tank.

[0007] Preferably, the gear set includes spur gears fixedly connected at the bottom ends of the rotating rods, the spur gears are meshingly connected to each other, a transmission rod is fixedly connected to the bottom end of the left spur gear, and the bottom end of the transmission rod is fixedly connected to the driving end of the motor; here, the motor serves as a driving source to drive the transmission rod to rotate, and by relying on the transmission effect of the meshing of the gears, only one spur gear needs to be driven to make the spur gear on the other side rotate.

[0008] Preferably, the outer wall of the rotating rod is located on the upper side of the spur gear and is rotatably connected to a fixing plate, and the left and right ends of the fixing plate are respectively fixedly connected to the left and right ends of the inner wall of the filter barrel; here, the fixing plate is inclined on both sides so that the wastewater flows to both sides when passing through, while providing a support effect for the rotating rod.

[0009] Preferably, the sliding assembly includes a folding plate fixedly connected to the driving end of the electric push rod and a sliding plate fixedly connected to the top end of the scraper. The lower parts of the left and right ends of the folding plates are slidably connected to the front and rear inner walls of the top end of the filter barrel respectively. The left and right ends of the sliding plate are slidably connected to a slide frame, and the top end of the slide frame is fixedly connected to the opposite side of the bottom end of the folding plate. Here, the opposite ends of the scrapers on both sides are concave semi-arcs, and the curvature range of the bottom is less than 90°.

[0010] Preferably, an extension box is fixedly connected to the top of the inner wall of the connecting frame, and vertical rods are rotatably connected to the right inner walls of the upper and lower ends of the extension box and penetrate the upper and lower sides of the extension box, and a number of stirring blades are fixedly connected to the left and right ends of the vertical rods; here, the extension box serves as a supporting point for multiple structural components in the water tank and can be connected to the transmission components.

[0011] Preferably, the left inner wall at the bottom end of the extension box is rotatably connected to a rotating shaft and passes through both sides of the extension box, the top end of the rotating shaft is rotatably connected to the inner wall of the extension box, and the bottom end of the rotating shaft is fixedly connected to an impeller; here, the bottom of the impeller is sharp and has curved and inclined blades on the outside.

[0012] Preferably, the outer walls of the rotating shaft and the vertical rod are located on the inner side of the extension box and are fixedly connected to a power wheel, and the end of the power wheel opposite to the outer diameter is meshed with a synchronous belt; here, the meshing of the synchronous belt and the power wheel forms a transmission effect, and the rotation of the power wheel on either side can drive the power wheel on the other side to rotate.

[0013] Preferably, L-shaped plates are fixedly connected to the bottom of both front and rear ends of the drop hopper, and a baffle is slidably connected to the inner wall of one end of the L-shaped plate; here, a slide rail is formed between the relatively placed L-shaped plates, which provides a position for the baffle to be installed and connected, and limits the sliding direction and movement of the baffle.

[0014] Preferably, the left end of the baffle is rotatably connected to a connecting rod, and a discharge port is opened on the left side of the inner wall of the baffle; here, the opening area of ​​the inner wall of the discharge port is the same as the opening area of ​​the bottom of the hopper.

[0015] Preferably, the top end of the vertical rod is fixedly connected to a connecting rod 2, and the left side of the top end of the connecting rod 2 is rotatably connected to the left side of the bottom end of the connecting rod 1; here, the connection between the connecting rod 1 and the connecting rod 2 forms a transmission, thereby driving the baffle to slide back and forth between the L-shaped plates.

[0016] The present invention provides a wastewater treatment device for printing and dyeing wastewater. It has the following beneficial effects: 1. The present invention completes the operation of injecting printing and dyeing wastewater into the filter barrel through a collecting tube and a shunt pipe, and then completes the filtration of solid pollutants in the wastewater through a disc and a filter screen, and then completes the scraping of solid pollutants through a motor, a transmission rod, a spur gear, a rotating rod, and a scraper, so that the solid pollutants can be gathered between the scrapers on both sides, and then the gathered solid pollutants are shoveled to the opening of the sewage pipe for discharge through an electric push rod, a folding plate, a slide frame, a slide plate, and a scraper, thereby completing the treatment of solid pollutants in the printing and dyeing wastewater. Compared with the traditional treatment method, this method does not require sedimentation and does not require personnel to salvage, shortens the treatment time, and improves work efficiency.

[0017] 2. The present invention introduces the separated wastewater into the water tank through a water pump. When the wastewater passes through the connecting frame, the baffle forms a reciprocating motion at the bottom opening of the hopper through the rotating shaft, impeller, power wheel, synchronous belt, vertical rod, connecting rod 2, connecting rod 1, and L-shaped plate. When the discharge port moves to the bottom opening of the hopper, the degradation agent filled in the hopper falls into the water tank and contacts with the wastewater, thereby realizing batch feeding and avoiding excessive feeding at one time, which makes part of the degradation agent damp and agglomerated and difficult to dissolve in the wastewater. At the same time, the vertical rod drives the stirring blade to rotate, thereby realizing mixing and stirring of the wastewater and the degradation agent, so that the degradation agent is quickly dissolved and the degradation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the device of the present invention; Figure 2 It is a cross-sectional view of the filter barrel of the present invention; Figure 3 is a cross-sectional view of a disc of the present invention; Figure 4 It is a schematic diagram of the structure of the slide frame of the present invention; Figure 5 is a cross-sectional view of a water tank of the present invention; Figure 6 is a cross-sectional view of an extension box of the present invention; Figure 7 It is a schematic diagram of the structure of the drop hopper of the present invention; Figure 8 It is a schematic diagram of the baffle structure of the present invention; Fig. 9 It is a cross-sectional view of the collecting tube of the present invention.

[0019] In the figure, 1, filter barrel; 2, water tank; 3, connecting frame; 4, water pipe 1; 5, water pump; 6, water pipe 2; 7, collecting tube; 8, diversion pipe; 9, placement table; 10, electric push rod; 11, sewage pipe; 12, drop hopper; 13, folding plate; 14, slide frame; 15, scraper; 16, disc; 17, filter screen; 18, retaining plate; 19, transmission rod; 20, motor; 21, rotating rod; 22, spur gear; 23, slide plate; 24, scraper; 25, vertical rod; 26, stirring blade; 27, extension box; 28, L-shaped plate; 29, power wheel; 30, synchronous belt; 31, rotating shaft; 32, impeller; 33, baffle; 34, discharge port; 35, connecting rod 1; 36, connecting rod 2. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example: Please see attached Figure 1 -Attached Fig. 9 The embodiment of the present invention provides a wastewater treatment device for printing and dyeing wastewater, including a filter barrel 1 and a water tank 2. A placement platform 9 is fixedly connected to the middle of the top of the filter barrel 1. The front and rear ends of the placement platform 9 are fixedly connected to electric push rods 10. The inner wall of the filter barrel 1 is located at the bottom of the scraper 24 and is fixedly connected to a disc 16. The inner wall of the disc 16 is fixedly connected to a plurality of filter screens 17. The front and rear ends of the filter barrel 1 are located at the top of the disc 16 and are fixedly connected to a sewage pipe 11. The inner wall of the disc 16 is located at the left and right sides of the scraper 24 and is rotatably connected to a rotating rod 21 that penetrates the upper and lower sides of the disc 16. The outer wall of the rotating rod 21 is located on the upper side of the filter screen 17 and is fixedly connected to a scraper 15. The bottom end of the filter barrel 1 is located on the left side. The lower part of the rotating rod 21 is fixedly connected to the motor 20, the top of the filter barrel 1 is provided with a collecting cylinder 7, the lower side of the outer wall of the collecting cylinder 7 is fixedly connected with a shunt pipe 8 in sequence corresponding to the upper part of the filter screen 17, the bottom end of the shunt pipe 8 is fixedly connected to the upper part of the filter screen 17 corresponding to the top of the filter barrel 1, the water tank 2 is arranged on the right side of the filter barrel 1, the bottom of the left end of the water tank 2 is fixedly connected to a connecting frame 3, the left end of the connecting frame 3 is fixedly connected to a water pipe 1 4, the left end of the water pipe 1 4 is fixedly connected to a water pump 5, the left input end of the water pump 5 is fixedly connected to a water pipe 2 6, the left end of the water pipe 2 6 is fixedly connected to the bottom of the right end of the filter barrel 1, the right inner wall of the top of the water tank 2 is fixedly connected to a drop hopper 12 and runs through the inside and outside of the water tank 2; To explain further, firstly, the wastewater is introduced, and the printing and dyeing wastewater is accurately poured into the collecting barrel 7. After the wastewater flows into the collecting barrel 7, it will flow toward the filter barrel 1 along the diversion pipes 8 on the outer wall of the collecting barrel 7. When the wastewater enters the filter barrel 1, it will first pass through the filter screen 17 installed on the inner wall of the disc 16. The filter screen 17 is distributed with fine small holes, which can effectively intercept the solid matter in the wastewater on the surface of the filter screen 17, while the liquid wastewater, relying on its own fluidity, smoothly passes through the fine holes in the filter screen 17 and flows to the lower side of the filter barrel 1, and gradually gathers in the lower area of ​​the inner wall of the filter barrel 1. Before treating the wastewater after filtration and gathered in the filter barrel 1, it is necessary to start the water pump 5 to introduce the wastewater from one end of the water pipe 2 6 into the water tank 2. The wastewater gathered inside the filter barrel 1 will be introduced into the water tank 2 along the direction of the water flow.

[0022] The bottom ends of the rotating rods 21 are all fixedly connected to the spur gears 22, and the spur gears 22 are meshed with each other. The bottom end of the left spur gear 22 is fixedly connected to the transmission rod 19, and the bottom end of the transmission rod 19 is fixedly connected to the driving end of the motor 20; To further explain, after the printing and dyeing wastewater is dumped, the solid matter retained on the surface of the filter 17 needs to be cleaned and processed. At this time, the motor 20 is started, and the driving end of the motor 20 will drive the transmission rod 19 connected to it to rotate. The rotation of the transmission rod 19 is like a power hub, which in turn drives the connected spur gear 22 to rotate synchronously. Since the spur gears 22 on both sides are meshed with each other, when the spur gear 22 on the front side is driven by the spur gear 22 on the rear side, it will also start to rotate. In this way, the spur gears 22 on both sides will drive their respective connected rotating rods 21 to rotate in opposite directions. While the rotating rod 21 rotates, it will carry the connected scraper 15 to make a circular motion on the surface of the filter 17. During the rotation process, the scraper 15 has a scraping effect on the solid matter on the surface of the filter 17, and gradually gathers the originally dispersed solid matter between the scrapers 15 on both sides. To scrape off the pollutants on the filter 17 on the other side, it is only necessary to start the motor 20 in reverse.

[0023] The outer wall of the rotating rod 21 is located on the upper side of the spur gear 22 and is rotatably connected to a retaining plate 18, and the left and right ends of the retaining plate 18 are respectively fixedly connected to the left and right ends of the inner wall of the filter barrel 1; To further explain, the retaining plate 18 provides support and reinforcement for the rotating rod 21, and the top of the retaining plate 18 is tilted downward on both sides to prevent sewage from gathering on the top thereof.

[0024] The sliding assembly includes a folding plate 13 fixedly connected to the driving end of the electric push rod 10 and a sliding plate 23 fixedly connected to the top of the scraper 24. The lower parts of the left and right ends of the folding plate 13 on the opposite sides are respectively slidably connected to the inner walls of the front and rear sides of the top of the filter barrel 1. The left and right ends of the sliding plate 23 are slidably connected to the slide frame 14. The top of the slide frame 14 is fixedly connected to the opposite side of the bottom end of the folding plate 13. To explain further, when the electric push rods 10 on both sides are started, the driving ends of the electric push rods 10 will extend out, pushing the folding plate 13 to smoothly displace on the inner wall of the top of the filter barrel 1. As the folding plate 13 moves, the two slide racks 14 will move in opposite directions. At the same time, under the push of the scraper 24, the gathered solid matter will be pushed to the side close to the sewage pipe 11. Then, under the continuous push of the electric push rod 10, the bottom of the scraper 24 will contact the edge slope of the disc 16. As the slope is guided, the scraper 24 will move upward, pushing the slide plate 23 into the slide rack 14 and retracting it. When the scraper 24 moves to the highest point of the edge of the disc 16, the pushed solid matter will open from there and be smoothly discharged out of the filter barrel 1 along the sewage pipe 11. The staff only needs to set two containers at appropriate positions on the outside to collect the solid matter.

[0025] An extension box 27 is fixedly connected to the top of the inner wall of the connection frame 3, and a vertical rod 25 is rotatably connected to the right inner wall of the upper and lower ends of the extension box 27 and penetrates the upper and lower sides of the extension box 27. A plurality of stirring blades 26 are fixedly connected to the left and right ends of the vertical rod 25; To further explain, the extension box 27 serves as the outer shell of part of the transmission mechanism, providing protection for the components, and at the same time providing support and connection points for the components. The vertical rod 25 is cylindrical, and a number of stirring blades 26 are connected to both sides. When the vertical rod 25 rotates, the stirring blades 26 rotate in the water tank 2.

[0026] The left inner wall at the bottom end of the extension box 27 is rotatably connected with a rotating shaft 31 and passes through both sides of the extension box 27. The top end of the rotating shaft 31 is rotatably connected to the inner wall of the extension box 27, and the bottom end of the rotating shaft 31 is fixedly connected with an impeller 32. To further explain, before the wastewater enters the water tank 2, it will first pass through the water pipe 4 and the connecting frame 3. When passing through the connecting frame 3, the water flow converges to generate a large potential energy, which will impact the blades on the outside of the impeller 32. The blades on the outside of the impeller 32 are stressed, forcing the impeller 32 to rotate rapidly.

[0027] The outer wall of the rotating shaft 31 and the vertical rod 25 are located inside the extension box 27 and are fixedly connected with a power wheel 29. The end of the power wheel 29 opposite to the outer diameter is meshed with a synchronous belt 30. To further explain, the rotation of the impeller 32 will drive the rotating shaft 31 and its corresponding connected power wheel 29 to rotate. Then, under the transmission action of the synchronous belt 30, the power wheel 29 on the other side will also rotate, and drive the corresponding connected vertical rod 25 to rotate.

[0028] The bottom of both ends of the hopper 12 is fixedly connected with an L-shaped plate 28, and a baffle 33 is slidably connected with the inner wall of one end of the L-shaped plate 28; To further explain, a slide track is formed between the L-shaped plates 28 for the baffle plate 33 , and the L-shaped plates 28 are interconnected on the left and right sides, so that the baffle plate 33 can slide left and right between the L-shaped plates 28 .

[0029] The left end of the baffle 33 is rotatably connected to a connecting rod 35, and a discharge port 34 is provided on the left side of the inner wall of the baffle 33; To further explain, the staff needs to pour a certain amount of degradation agent into the hopper 12 in advance. When the discharge port 34 slides left and right between the relative L-shaped plates 28 and the discharge port 34 moves to the bottom opening of the hopper 12, the degradation agent will fall from the bottom opening of the hopper 12 into the water tank 2. When the solid part of the baffle 33 moves to the bottom opening of the hopper 12, it will block the degradation agent from falling. In this way, the degradation agent is discharged in batches, effectively avoiding the situation where too much degradation agent is added at one time, causing some degradation agents to become damp and agglomerated and unable to be completely dissolved in the wastewater.

[0030] The top of the vertical rod 25 is fixedly connected with a second connecting rod 36, and the left side of the top of the second connecting rod 36 is rotatably connected to the left side of the bottom end of the first connecting rod 35; To explain further, when the vertical rod 25 rotates, the connecting rod 2 36 on its top will rotate around the vertical rod 25, while driving the connecting rod 1 35 to cause displacement within a certain range, and the baffle 33 connected to the other end of the connecting rod 1 35 will slide back and forth between the relative L-shaped plates 28, forming a left and right reciprocating motion trajectory.

[0031] Working principle: First, pour the printing and dyeing wastewater into the collecting barrel 7. After entering the collecting barrel 7, the wastewater flows into the filter barrel 1 along the shunt pipes 8 connected at four places on the outer wall of the collecting barrel 7. After entering the filter barrel 1, the wastewater will first pass through the filter screen 17 in the inner wall of the disc 16. Through the fine holes in the filter screen 17, the solid matter in the wastewater is filtered on the surface of the filter screen 17, while the liquid wastewater flows into the lower side of the filter barrel 1 through the fine holes in the filter screen 17, gathers on the lower side of the inner wall of the filter barrel 1, and fills the inside of the water pipe 2 6; After the printing and dyeing wastewater is dumped, the solid matter retained on the surface of the filter screen 17 is processed by starting the motor 20, so that its driving end drives the transmission rod 19 to rotate, thereby driving the spur gear 22 on the rear side to rotate, and then the spur gears 22 on both sides are meshed with each other, so that the front spur gear 22 rotates, thereby realizing that the spur gears 22 on both sides drive their respective rotating rods 21 to rotate towards each other, and at the same time, the rotating rod 21 will drive the connected scraper 15 to rotate on the surface of the filter screen 17, and have a scraping effect on the solid matter on the surface of the filter screen 17, and then gather the filtered solid matter between the scrapers 15 on both sides, start the motor 20 to reverse, and the solid matter can be scraped off the two filter screens 17 on the opposite side. After that, the electric push rods 10 on both sides are started, so that the driving ends thereof push the folding plate 13 to move on the inner wall of the top of the filter barrel 1, and the two chute frames 14 are moved in opposite directions. At the same time, the solid matter is pushed to a place close to the sewage pipe 11 under the push of the scraper 24. Then, under the continuous push of the electric push rod 10, the bottom of the scraper 24 will contact the edge slope of the disc 16. With the inclination of the slope, the scraper 24 pushes the slide plate 23 upward into the chute frame 14 and retracts it. When the scraper 24 moves to the highest point of the edge of the disc 16, the pushed solid matter will be discharged from the filter barrel 1 along the sewage pipe 11 from the opening there. The staff only needs to set up containers at two places on the outside to collect the solid matter. Before treating the filtered and collected wastewater, it is necessary to start the water pump 5 to introduce the wastewater from the water pipe 2 6 into the water tank 2, and the wastewater collected inside the filter barrel 1 will be introduced into the water tank 2 along the direction of the water flow. Before the wastewater enters the water tank 2, it will first pass through the water pipe 1 4 and the connecting frame 3. While passing through the connecting frame 3, due to the large potential energy of the water flow convergence, it will impact the blades on the outer side of the impeller 32, causing it to be stressed, so that the impeller 32 rotates rapidly, and drives the rotating shaft 31 and the corresponding power wheel 29 to rotate, and then under the transmission action of the synchronous belt 30, the power wheel 29 on the other side rotates, and drives the corresponding vertical rod 25 to rotate, and the connecting rod 2 36 at the top of the vertical rod 25 will rotate with the center of the vertical rod 25, and drive the connecting rod 1 35, so that it produces a displacement within a certain range, and the baffle 33 connected to the other end of the connecting rod 1 35 will slide between the relatively placed L-shaped plates 28, forming a left and right reciprocating motion; The staff only needs to pour a certain amount of degradation agent into the hopper 12 in advance. When the baffle 33 slides left and right between the opposite L-shaped plates 28, when the discharge port 34 moves to the bottom opening of the hopper 12, the degradation agent will fall from the opening into the water tank 2. When the solid part of the baffle 33 moves to the bottom opening of the hopper 12, it will block the degradation agent from falling, thereby forming batch feeding, avoiding too much input at one time, causing part of the degradation agent to become damp and agglomerated, and unable to be completely dissolved in the wastewater. At the same time, during the batch feeding process, the vertical rod 25 will drive the stirring blades 26 connected on both sides to rotate in the water tank 2, and stir and mix the wastewater and the degradation agent, thereby improving the dissolution efficiency and accelerating the treatment of pollution in the printing and dyeing wastewater.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for printing and dyeing wastewater, comprising a filter barrel (1) and a water tank (2), characterized in that: A placement platform (9) is fixedly connected to the middle of the top of the filter barrel (1), and an electric push rod (10) is fixedly connected to the front and rear ends of the placement platform (9), and the driving end of the electric push rod (10) is connected to a scraper (24) through a sliding assembly. A disc (16) is fixedly connected to the inner wall of the filter barrel (1) at the bottom of the scraper (24), and a plurality of filter screens (17) are fixedly connected to the inner wall of the disc (16). A sewage pipe (11) is fixedly connected to the front and rear ends of the filter barrel (1) at the top of the disc (16), and a rotating rod (21) is rotatably connected to the inner wall of the disc (16) at the left and right sides of the scraper (24). The rotating rod (21) penetrates the upper and lower sides of the disc (16); the outer wall of the rotating rod (21) is located on the upper side of the filter screen (17) and is fixedly connected to a scraper (15); the bottom end of the filter barrel (1) is located on the lower part of the left rotating rod (21) and is fixedly connected to a motor (20); the driving end of the motor (20) penetrates the inner wall of the filter barrel (1) and is connected to the rotating rod (21) through a gear set; a collecting cylinder (7) is arranged on the top of the filter barrel (1); a shunt pipe (8) is fixedly connected to the lower side of the outer wall of the collecting cylinder (7) corresponding to the upper part of the filter screen (17); the bottom end of the shunt pipe (8) is fixedly connected to the upper part of the filter screen (17) corresponding to the top of the filter barrel (1); The water tank (2) is arranged on the right side of the filter barrel (1); a connection frame (3) is fixedly connected to the bottom of the left end of the water tank (2); a water pipe 1 (4) is fixedly connected to the left end of the connection frame (3); a water pump (5) is fixedly connected to the left end of the water pipe 1 (4); a water pipe 2 (6) is fixedly connected to the left input end of the water pump (5); a water pipe 2 (6) is fixedly connected to the bottom of the right end of the filter barrel (1); a drop hopper (12) is fixedly connected to the inner wall on the right side of the top end of the water tank (2) and penetrates both the inner and outer sides of the water tank (2).

2. A wastewater treatment device for printing and dyeing wastewater according to claim 1, characterized in that: The gear set comprises spur gears (22) fixedly connected to the bottom ends of the rotating rods (21), the spur gears (22) being meshingly connected to each other, the bottom end of the left spur gear (22) being fixedly connected to a transmission rod (19), and the bottom end of the transmission rod (19) being fixedly connected to the driving end of the motor (20).

3. A wastewater treatment device for printing and dyeing wastewater according to claim 2, characterized in that: The outer wall of the rotating rod (21) is located on the upper side of the spur gear (22) and is rotatably connected to a retaining plate (18), and the left and right ends of the retaining plate (18) are respectively fixedly connected to the left and right ends of the inner wall of the filter barrel (1).

4. A wastewater treatment device for printing and dyeing wastewater according to claim 1, characterized in that: The sliding assembly comprises a folding plate (13) fixedly connected to the driving end of the electric push rod (10) and a sliding plate (23) fixedly connected to the top of the scraper (24); the lower parts of the left and right ends of the folding plate (13) are respectively slidably connected to the inner walls of the front and rear sides of the top of the filter barrel (1); the left and right ends of the sliding plate (23) are slidably connected to the sliding groove frame (14); the top of the sliding groove frame (14) is fixedly connected to the opposite side of the bottom end of the folding plate (13).

5. A wastewater treatment device for printing and dyeing wastewater according to claim 1, characterized in that: An extension box (27) is fixedly connected to the top of the inner wall of the connection frame (3); vertical rods (25) are rotatably connected to the right inner walls of the upper and lower ends of the extension box (27) and penetrate the upper and lower sides of the extension box (27); and a plurality of stirring blades (26) are fixedly connected to the left and right ends of the vertical rod (25).

6. A wastewater treatment device for printing and dyeing wastewater according to claim 5, characterized in that: A rotating shaft (31) is rotatably connected to the left inner wall of the bottom end of the extension box (27) and penetrates both inner and outer sides of the extension box (27); the top end of the rotating shaft (31) is rotatably connected to the inner wall of the extension box (27); and the bottom end of the rotating shaft (31) is fixedly connected to an impeller (32).

7. A wastewater treatment device for printing and dyeing wastewater according to claim 6, characterized in that: The outer wall of the rotating shaft (31) and the vertical rod (25) located inside the extension box (27) are both fixedly connected to a power wheel (29), and the end of the power wheel (29) opposite to the outer diameter is meshedly connected to a synchronous belt (30).

8. A wastewater treatment device for printing and dyeing wastewater according to claim 1, characterized in that: The bottoms of both the front and rear ends of the drop hopper (12) are fixedly connected to L-shaped plates (28), and the inner wall of one end of the L-shaped plate (28) is slidably connected to a baffle (33).

9. A wastewater treatment device for printing and dyeing wastewater according to claim 8, characterized in that: The left end of the baffle (33) is rotatably connected to a connecting rod 1 (35), and a discharge port (34) is provided on the left side of the inner wall of the baffle (33).

10. A wastewater treatment device for printing and dyeing wastewater according to claim 5, characterized in that: The top end of the vertical rod (25) is fixedly connected to a second connecting rod (36), and the left side of the top end of the second connecting rod (36) is rotatably connected to the left side of the bottom end of the first connecting rod (35).

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