A device and method for advanced treatment of chemical fiber wastewater

Abstract

The present invention discloses a device and method for advanced treatment of chemical fiber wastewater, which relates to the technical field of wastewater treatment. The device includes a treatment tank and support legs arranged at its lower end. A partition bottom plate is provided inside the treatment tank. A central column is rotatably arranged at the middle position of the partition bottom plate. A rotating tank is provided at the upper end of the central column. An air intake structure is provided on the rotating tank. The rotating tank is connected to a power mechanism for driving its rotation. The present invention is designed in view of the drawbacks of existing treatment devices, can scrape the impurities generated by filtration, so that the impurities accumulate in one place, which facilitates the subsequent cleaning. At the same time, combined with reverse air blowing, it helps to keep the filter holes smooth and improve the filtration efficiency. In addition, a mixing method of hitting and spraying liquid is also set, so that the medicament and the sewage are fully mixed, ensuring the disinfection effect.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and specifically to a device and method for advanced treatment of chemical fiber wastewater. Background Art

[0002] The amount of chemical fiber wastewater is large. Generally, advanced treatment methods are used to recycle the sewage, which complies with the national water resource recycling policy. Physical pretreatment: Grids, filtration, and sedimentation tanks are used to remove large impurities such as suspended solids and particulate matters. Chemical pretreatment: Coagulant + air flotation machine. The coagulant can use three types of drugs, namely polyaluminum + fiber removal flocculant + polyacrylamide, in combination. Regarding the treatment plan, a patent with the publication number CN210163244 U in the existing patents records a chemical fiber wastewater treatment device. By performing secondary filtration on the sewage and simultaneously feeding disinfectant into the sewage, the disinfection speed is accelerated and the sewage treatment effect is improved.

[0003] However, the above treatment method is prone to problems such as clogging of the filter screen. Moreover, the addition of the disinfection agent here is only dripping, and this dripping method has a slow diffusion rate and is not easily mixed fully with the sewage, which is not conducive to the disinfection operation.

[0004] Based on this, an advanced treatment device and method for chemical fiber wastewater are now provided, which can eliminate the drawbacks existing in the existing device. Summary of the Invention

[0005] The purpose of the present invention is to provide an advanced treatment device and method for chemical fiber wastewater to solve the problems in the background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A device for advanced treatment of chemical fiber wastewater, comprising a treatment tank and support legs arranged at its lower end. Inside the treatment tank, there is a partition bottom plate. At the middle position of the partition bottom plate, a central column is rotatably arranged. At the upper end of the central column, there is a rotating tank. An air inlet structure is provided on the rotating tank. The rotating tank is connected to a power mechanism for driving its rotation. Inside the cavity of the central column, there is a partition plate. Above the partition plate, there is an air guiding channel for guiding air. Several air spraying pipes communicating with the air guiding channel are distributed on the outer side of the central column. One-way valves for one-way air intake are provided on the air spraying pipes. On the upper side of the air spraying pipes, there are first filter meshes for air spraying. Inside the treatment tank, there are also a first filter mesh and a second filter mesh for filtering sewage. The first filter mesh and the second filter mesh are fixedly connected to the central column. The first filter mesh is located above the second filter mesh. There are two air spraying pipes, respectively close to the bottom positions of the first filter mesh and the second filter mesh. An exhaust pipe for exhausting gas is provided on the upper right side of the treatment tank. Inside the treatment tank, there is also an impurity collecting member for removing impurities on the surfaces of the first filter mesh and the second filter mesh. A medicine spraying and stirring member for spraying medicine into the treatment tank is also provided on the central column. A liquid discharging pipe for discharging materials is provided on the lower right side of the treatment tank.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: The impurity collecting member includes two slag discharging pipes arranged on the outer side of the treatment tank. The slag discharging pipes correspond to the positions of the filter meshes. On the inner wall of the treatment tank where the slag discharging pipes are located, there is a scraping plate flush with the surface of the first filter mesh or the second filter mesh. A butterfly valve for discharging materials is provided at the lower end of the slag discharging pipe.

[0010] In an optional solution: A impurity collecting tank for collecting the materials discharged from the slag discharging pipes is also provided on the outer side of the treatment tank.

[0011] In an optional solution: The medicine spraying and stirring member includes a liquid spraying pipe arranged on the outer side of the central column. The liquid spraying pipe is arranged below the second filter mesh. Spraying holes for spraying liquid are distributed on the surface of the liquid spraying pipe. The liquid spraying pipe is communicated with a buffer liquid cavity inside the central column. One-way liquid spraying valves are provided at the positions of the spraying holes. A medicine supplying mechanism for supplying medicine to the inside thereof is provided in the buffer liquid cavity.

[0012] In an alternative solution: The drug supply mechanism includes a piston rod slidably disposed inside the buffer liquid chamber. A rotational limiting member for restricting relative rotation between the piston rod and the buffer liquid chamber is provided therebetween. A suction pipe penetrates through the piston rod, and the lower end of the suction pipe extends into the medicine cylinder. The medicine cylinder is disposed at the lower end of the processing box and is used for storing the disinfection agent. A one-way valve that only allows the agent to flow in one direction is provided on the suction pipe. The lower end of the piston rod is fixedly connected to the inner bottom of the processing box through a return spring. A rotating ring connected to the return spring is rotatably provided at the inner bottom of the processing box. A plurality of side rods are arrayed on the outer side of the piston rod, and pressing wheels are provided at the outer ends of the side rods. Protruding blocks corresponding to the positions of the pressing wheels are provided at the inner bottom of the processing box.

[0013] In an alternative solution: The rotational limiting member includes a limiting groove provided on the outer side of the piston rod, and a limiting protrusion matching the limiting groove is provided on the inner wall of the buffer liquid chamber.

[0014] In an alternative solution: The power mechanism includes a driven gear ring provided on the outer side of the lower end of the rotating box. A driving motor is provided at the upper end of the processing box where the driven gear ring is located, and a driving gear meshing with the driven gear ring is provided at the output end of the driving motor.

[0015] In an alternative solution: The air intake structure includes a plurality of air inlets provided on the outer side of the rotating box, and air intake vanes for guiding air to enter are provided at the positions of the air inlets.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The present invention is designed for the drawbacks of the existing processing device, can scrape the impurities generated by filtration, so that the impurities accumulate in one place, facilitating subsequent cleaning. At the same time, combined with reverse air blowing, it helps to keep the filter holes smooth and improve the filtration efficiency. In addition, a mixing method of hitting and spraying liquid is also set, so that the agent and the sewage are fully mixed, ensuring the disinfection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present invention.

[0019] Figure 2 It is a schematic structural diagram inside the present invention.

[0020] Figure 3 It is a schematic structural diagram of the piston rod of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the scraping plate and the first filter screen of the present invention.

[0022] Annotation of reference numerals: treatment tank 11, drive motor 12, drive gear 13, rotating tank 14, intake vane 15, driven gear ring 16, exhaust pipe 17, air guide channel 18, first filter screen 19, air injection hole 20, air injection pipe 21, second filter screen 22, partition plate 23, medicine spraying hole 24, liquid outlet pipe 25, liquid spraying pipe 26, piston column 27, side rod 28, return spring 29, material suction pipe 30, medicine barrel 31, raised block 32, pressing wheel 33, partition bottom plate 34, buffer liquid chamber 35, impurity collection tank 36, slag discharge pipe 37, scraping plate 38, central column 39. Detailed implementation manner

[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, as Figures 1-4 shown, a device for deep treatment of chemical fiber wastewater includes a treatment tank 11 and support legs provided at its lower end. A partition bottom plate 34 is provided inside the treatment tank 11. A central column 39 is rotatably provided at the middle position of the partition bottom plate 34. A rotating tank 14 is provided at the upper end of the central column 39. An air intake structure is provided on the rotating tank 14. The rotating tank 14 is connected to a power mechanism for driving its rotation. An air guide channel 18 for guiding air is provided above the partition plate 23 inside the central column 39. A plurality of air injection pipes 21 communicating with the air guide channel 18 are distributed on the outer side of the central column 39. A one-way valve for one-way air intake is provided on the air injection pipe 21. A first filter screen 19 for air injection is provided on the upper side surface of the air injection pipe 21. First filter screens 19 and second filter screens 22 for filtering sewage are also provided inside the treatment tank 11. The first filter screens 19 and the second filter screens 22 are fixedly connected to the central column 39. The first filter screens 19 are located above the second filter screens 22. Two air injection pipes 21 are provided, respectively near the bottom positions of the first filter screens 19 and the second filter screens 22. In this way, the ejected gas can perform back blowing operations on the first filter screens 19 and the second filter screens 22 to avoid clogging problems. An exhaust pipe 17 for exhausting gas is provided on the upper right side of the treatment tank 11. An impurity collection member for removing impurities on the surfaces of the first filter screens 19 and the second filter screens 22 is also provided inside the treatment tank 11. In this way, impurities can be prevented from clogging on the filter surface, ensuring the filtering effect. A medicine spraying and stirring member for spraying medicine into the treatment tank 11 is also provided on the central column 39, which can make the medicine fully mixed with the sewage. A liquid outlet pipe 25 for discharging materials is provided on the lower right side of the treatment tank 11;

[0025] The impurity collection member includes two slag discharge pipes 37 arranged outside the treatment tank 11. The slag discharge pipes 37 correspond to the positions of the filter meshes. On the inner wall of the treatment tank 11 where the slag discharge pipes 37 are located, there is a scraping plate 38 flush with the surface of the first filter mesh 19 or the second filter mesh 22. The scraping plate 38 is used to scrape away the impurities on the filtering surface. Under the action of centrifugal force, the impurities will accumulate along the inner wall of the treatment tank 11. With the guidance of the scraping plate 38, the impurities will enter the slag discharge pipes 37, thus avoiding the filtering area. A butterfly valve for discharging materials is provided at the lower end of the slag discharge pipes 37. In the later stage, only by opening the slag discharge pipes 37 can the impurities and part of the sewage be poured out;

[0026] A miscellaneous collection tank 36 for collecting the materials discharged from the slag discharge pipes 37 is also arranged outside the treatment tank 11. When the slag discharge pipes 37 are opened, the sewage will carry the impurities into the miscellaneous collection tank 36 together, so as to remove the blockage;

[0027] The medicine spraying and stirring member includes a liquid spraying pipe 26 arranged outside the central column 39. The liquid spraying pipe 26 is arranged below the second filter mesh 22. Spraying holes 24 for spraying liquid are distributed on the surface of the liquid spraying pipe 26. The liquid spraying pipe 26 is communicated with a buffer liquid cavity 35 inside the central column 39. One-way liquid spraying valves are arranged at the positions of the spraying holes 24. A medicine supply mechanism for supplying medicine to the inside thereof is arranged in the buffer liquid cavity 35. Under the action of the medicine supply mechanism, the medicine continuously enters the buffer liquid cavity 35 and then sprays out from the spraying holes 24. The sprayed medicine cooperates with the impact of the liquid spraying pipe 26 on the sewage, effectively improving the mixing effect of the medicine and the sewage;

[0028] The medicine supply mechanism includes a piston column 27 slidably arranged inside the buffer liquid cavity 35. A rotary limiting member for restricting the relative rotation between the piston column 27 and the buffer liquid cavity 35 is arranged between the piston column 27 and the buffer liquid cavity 35. A suction pipe 30 penetrates through the piston column 27. The lower end of the suction pipe 30 extends into a medicine barrel 31. The medicine barrel 31 is arranged at the lower end of the treatment tank 11 and is used for storing disinfection medicine. A one-way valve allowing only the one-way flow of the medicine is arranged on the suction pipe 30. The lower end of the piston column 27 is fixedly connected to the inner bottom of the treatment tank 11 through a return spring 29. A rotating ring connected to the return spring 29 is rotatably arranged on the inner bottom of the treatment tank 11. A plurality of side rods 28 are arranged in an array on the outer side of the piston column 27. A pressing wheel 33 is arranged at the outer end of the side rod 28. A raised block 32 corresponding to the position of the pressing wheel 33 is arranged on the inner bottom of the treatment tank 11. In this way, when the piston column 27 rotates rapidly along with the central column 39, the pressing wheel 33 will be intermittently pushed by the raised block 32, so that the piston column 27 makes a piston movement along the buffer liquid cavity 35. Under the action of the piston column 27, the medicine in the suction pipe 30 will be continuously transported to the buffer liquid cavity 35. Since a hose is arranged at the lower end of the suction pipe 30, there is no need to worry about the problem that the liquid suction port is separated from the liquid medicine;

[0029] The rotation limiting member includes a limiting groove provided on the outer side of the piston column 27. A limiting protrusion matching the limiting groove is provided on the inner wall of the buffer liquid cavity 35. The arrangement of the limiting protrusion and the limiting groove enables the piston column 27 to rotate together with the buffer liquid cavity 35;

[0030] The power mechanism includes a driven gear ring 16 provided on the outer side of the lower end of the rotating box 14. A driving motor 12 is provided at the upper end of the processing box 11 where the driven gear ring 16 is located. A driving gear 13 meshing with the driven gear ring 16 is provided at the output end of the driving motor 12. By driving the driving gear 13 to rotate with the driving motor 12, the driving gear 13 cooperates with the driven gear ring 16 to drive the rotating box 14 to rotate, thereby providing power for the rotation of the central column 39;

[0031] The air intake structure includes a plurality of air inlets provided on the outer side of the rotating box 14. Air intake vanes 15 for guiding air to enter are provided at the positions of the air inlets. When the rotating box 14 rotates rapidly, the air intake vanes 15 will guide the outside air to quickly enter the rotating box 14, thereby providing an air source for aeration.

[0032] The above embodiment discloses a device for deep treatment of chemical fiber wastewater. During actual use, the power mechanism drives the rotating box 14 and the central column 39 to rotate rapidly. The first filter screen 19 and the second filter screen 22 will also rotate together. The scraping plate 38 is used to scrape away the impurities on the filtering surface. Under the action of centrifugal force, the impurities will accumulate against the inner wall of the processing box 11. With the guidance of the scraping plate 38, the impurities will enter the slag discharge pipe 37, thus avoiding the filtering area. Later, only by opening the slag discharge pipe 37 can the impurities and part of the sewage be poured out. When the rotating box 14 rotates rapidly, the air intake vanes 15 will guide the outside air to quickly enter the rotating box 14, and then spray out along the spray holes 20 on the spray pipe 21, thereby performing a back-blowing treatment on the first filter screen 19 and the second filter screen 22, improving the filtering effect. When the piston column 27 rotates rapidly with the central column 39, the pressing wheel 33 will be intermittently pushed by the raised block 32, so that the piston column 27 makes a piston movement along the buffer liquid cavity 35. Under the action of the piston column 27, the medicament in the suction pipe 30 will be continuously transported to the buffer liquid cavity 35, and then the liquid medicine will spray out along the spray holes 24 on the spray pipe 26. The sprayed medicament cooperates with the impact of the spray pipe 26 on the sewage, effectively improving the mixing effect of the medicament and the sewage. The filtered and disinfected sewage will be discharged along the liquid outlet pipe 25.

[0033] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present disclosure, and all should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A device for advanced treatment of chemical fiber wastewater, comprising a treatment tank (11) and support legs arranged at its lower end. Inside the treatment tank (11), there is a partition bottom plate (34). At the middle position of the partition bottom plate (34), a central column (39) is rotatably arranged. At the upper end of the central column (39), there is a rotating tank (14), and an air intake structure is arranged on the rotating tank (14). Characterized in that, The rotating tank (14) is connected to a power mechanism for driving its rotation. Inside the cavity of the central column (39), there is a partition plate (23). Above the partition plate (23), there is an air guiding channel (18) for guiding air. A number of air spraying pipes (21) communicating with the air guiding channel (18) are distributed on the outer side of the central column (39). A one-way valve for one-way air intake is arranged on the air spraying pipe (21). Inside the treatment tank (11), there are also a first filter screen (19) and a second filter screen (22) for filtering sewage. The first filter screen (19) and the second filter screen (22) are fixedly connected to the central column (39). The first filter screen (19) is located above the second filter screen (22). There are two air spraying pipes (21), respectively close to the bottom positions of the first filter screen (19) and the second filter screen (22). An exhaust pipe (17) for exhausting gas is arranged on the upper right side of the treatment tank (11). Inside the treatment tank (11), there is also an impurity collecting member for removing impurities on the surfaces of the first filter screen (19) and the second filter screen (22). On the central column (39), there is also a chemical spraying and stirring member for spraying chemicals into the treatment tank (11). A liquid outlet pipe (25) for discharging materials is arranged on the lower right side of the treatment tank (11). The chemical spraying and stirring member includes a liquid spraying pipe (26) arranged on the outer side of the central column (39). The liquid spraying pipe (26) is arranged below the second filter screen (22). Spraying holes (24) for spraying liquid are distributed on the surface of the liquid spraying pipe (26). The liquid spraying pipe (26) communicates with a buffer liquid cavity (35) inside the central column (39). A one-way liquid spraying valve is arranged at the position of the spraying holes (24). A medicine supply mechanism for providing medicine for the inside of the buffer liquid cavity (35) is arranged in the buffer liquid cavity (35). The medicine supply mechanism includes a piston rod (27) slidably disposed inside a buffer liquid chamber (35). A rotation limiting member for restricting relative rotation between the piston rod (27) and the buffer liquid chamber (35) is provided therebetween. A suction pipe (30) penetrates through the piston rod (27). The lower end of the suction pipe (30) extends into a medicine cylinder (31). The medicine cylinder (31) is disposed at the lower end of a treatment box (11) and is used for storing a disinfection agent. A one-way valve allowing only one-way flow of the agent is provided on the suction pipe (30). The lower end of the piston rod (27) is fixedly connected to the inner bottom of the treatment box (11) through a return spring (29). A rotating ring connected to the return spring (29) is rotatably provided at the inner bottom of the treatment box (11). A plurality of side rods (28) are arrayed on the outer side of the piston rod (27). A pressing wheel (33) is provided at the outer end of the side rod (28). A raised block (32) corresponding to the position of the pressing wheel (33) is provided at the inner bottom of the treatment box (11), so that the piston rod (27) performs a piston motion along the buffer liquid chamber (35). Under the action of the piston rod (27), the agent in the suction pipe (30) will be continuously transported into the buffer liquid chamber (35), and then the liquid medicine will be ejected along the medicine spraying holes (24) on a liquid spraying pipe (26).

2. The advanced treatment device for chemical fiber wastewater according to claim 1, wherein, The impurity collection member includes two slag discharge pipes (37) disposed outside the treatment box (11). The slag discharge pipes (37) correspond to the positions of the filter meshes. Two scraping plates are provided on the inner wall of the treatment box (11) where the slag discharge pipes (37) are located. The two scraping plates are flush with the surfaces of the first filter mesh (19) or the second filter mesh (22) respectively. A butterfly valve for discharging materials is provided at the lower end of the slag discharge pipe (37).

3. The advanced treatment device for chemical fiber wastewater according to claim 2, characterized in that, A collection tank (36) for collecting impurities discharged from the slag discharge pipes (37) is further provided outside the treatment box (11).

4. The advanced treatment device for chemical fiber wastewater according to claim 3, characterized in that, The rotation limiting member includes a limiting groove provided on the outer side of the piston rod (27), and a limiting projection matching the limiting groove is provided on the inner wall of the buffer liquid chamber (35).

5. The advanced treatment device for chemical fiber wastewater according to claim 4, wherein The power mechanism includes a driven gear ring (16) provided on the outer side of the lower end of a rotating box (14). A driving motor (12) is provided at the upper end of the treatment box (11) where the driven gear ring (16) is located. A driving gear (13) meshing with the driven gear ring (16) is provided at the output end of the driving motor (12).

6. The advanced treatment device for chemical fiber wastewater according to claim 5, characterized in that, The air intake structure includes a plurality of air inlets provided on the outer side of the rotating box (14), and air intake vanes (15) for guiding air to enter are provided at the positions of the air inlets.

7. A method for using the device for advanced treatment of chemical fiber wastewater according to claim 6, characterized in that, It includes the following steps: Step 1: Drive the rotating box (14) and the central column (39) to rotate rapidly through the power mechanism. The first filter mesh (19) and the second filter mesh (22) will also rotate together. The scraping plate (38) is used to scrape away the impurities on the filtering surface. Under the action of centrifugal force, the impurities will accumulate against the inner wall of the treatment box (11). With the guidance of the scraping plate (38), the impurities will enter the slag discharge pipes (37). Step 2: When the rotating box (14) rotates rapidly, the intake vane (15) guides the outside air to quickly enter the rotating box (14), and then sprays out along the spray holes (20) on the spray pipe (21), thereby performing a back-blowing treatment on the first filter screen (19) and the second filter screen (22), improving the filtering effect. Step 3: When the piston column (27) rotates rapidly with the central column (39), the pressing wheel (33) is intermittently pushed by the raised block (32), so that the piston column (27) performs a piston motion along the buffer liquid chamber (35). Under the action of the piston column (27), the medicament in the suction pipe (30) is continuously transported to the buffer liquid chamber (35), and then the liquid medicine sprays out along the spray holes (24) on the liquid spraying pipe (26). The sprayed medicament cooperates with the liquid spraying pipe (26) to strike the sewage, effectively improving the mixing effect of the medicament and the sewage.

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