Pesticide production wastewater treatment device

Abstract

The invention provides a pesticide production wastewater treatment device, and belongs to the technical field of water treatment.The pesticide production wastewater treatment device comprises an outer cylinder, an aerobic purification cylinder and an anaerobic purification cylinder, a liquid inlet pipe is installed at the bottom of the anaerobic purification cylinder, the anaerobic purification cylinder and the aerobic purification cylinder are each of a conical structure with one end open, the aerobic purification cylinder is arranged outside the anaerobic purification cylinder, and the liquid inlet pipe is connected with the liquid inlet pipe. The top of the anaerobic purification cylinder is communicated with the aerobic purification cylinder, the outer cylinder is located outside the aerobic purification cylinder, the bottom of the aerobic purification cylinder is communicated with the outer cylinder, a driving shaft is rotationally installed at one end of the aerobic purification cylinder, a transverse support is fixedly installed on the driving shaft, and the transverse support is fixedly connected with the anaerobic purification cylinder. A stirring rod extending to the position between the outer wall of the anaerobic purification barrel and the inner wall of the aerobic purification barrel is installed on the transverse support, an aeration disc is installed at the bottom of the aerobic purification barrel, the anaerobic process and the aerobic process in water treatment are connected in series and used in a matched mode, the nitrogen and phosphorus removal effect can be achieved, and the water treatment efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment, and in particular is a pesticide production wastewater treatment device. Background Art

[0002] With the development of the economy, the widespread use of pesticides and fertilizers and the increase in rural domestic sewage discharge have caused large amounts of nitrogen and other biological nutrients to be continuously discharged into rivers and lakes, accelerating the eutrophication of water bodies. At present, my country's pesticide factories have a large amount of sewage discharge and a low effective sewage treatment rate. The waters are seriously polluted and it is difficult to meet national standards.

[0003] Although my country has taken a large number of measures to solve the water pollution problem in pesticide factories, there are still problems in terms of technical equipment, such as high infrastructure and operating costs, and the need to improve treatment efficiency. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a pesticide production wastewater treatment device.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a pesticide production wastewater treatment device, comprising an outer cylinder, an aerobic purification cylinder, and an anaerobic purification cylinder, wherein a liquid inlet pipe is installed at the bottom of the anaerobic purification cylinder, the anaerobic purification cylinder and the aerobic purification cylinder are conical structures with one end open, the aerobic purification cylinder is arranged outside the anaerobic purification cylinder, the top of the anaerobic purification cylinder is connected with the aerobic purification cylinder, the outer cylinder is located outside the aerobic purification cylinder, the outer cylinder, the aerobic purification cylinder, and the anaerobic purification cylinder are arranged coaxially, the bottom of the aerobic purification cylinder is connected with the outer cylinder, a driving shaft is rotatably installed at one end of the aerobic purification cylinder, the driving shaft is connected to a driving member, the driving member is installed on the aerobic purification cylinder, a transverse bracket is fixedly installed on the driving shaft, a stirring rod extending between the outer wall of the anaerobic purification cylinder and the inner wall of the aerobic purification cylinder is installed on the transverse bracket, and an aeration disk is installed at the bottom of the aerobic purification cylinder.

[0006] As a further improvement scheme: a stirring rod extending between the outer wall of the anaerobic purification cylinder and the inner wall of the aerobic purification cylinder is hingedly installed on the transverse bracket, a limit frame is slidably installed on the stirring rod, a special-shaped ring plate is fixedly installed on the inner wall of the aerobic purification cylinder, one end of the limit frame is slidably connected to the special-shaped ring plate, and the special-shaped ring plate is composed of a plurality of convex plates.

[0007] As a further improvement scheme: a plurality of through holes are provided on the special-shaped ring plate.

[0008] As a further improvement scheme: one end of the driving shaft is provided with an external thread, a sleeve is threadedly connected to the driving shaft via the external thread, a support rod is fixedly installed on the sleeve, and one end of the support rod is fixedly installed with a driving rod.

[0009] As a further improvement scheme: a movable ring is slidably installed at the bottom of the aerobic purification cylinder, the movable ring is located between the aerobic purification cylinder and the anaerobic purification cylinder, the movable ring is elastically installed at the bottom of the outer cylinder, a plurality of arc-shaped protrusions are fixedly installed on the movable ring, and the driving rod intermittently abuts against the arc-shaped protrusions.

[0010] As a further improvement scheme: a spring and a telescopic rod are installed between the movable ring and the bottom of the outer cylinder.

[0011] As a further improvement scheme: a floating plate is rotatably mounted on the driving shaft, and the floating plate is located at the open end of the anaerobic purification cylinder.

[0012] As a further improvement scheme: an overflow cylinder is fixedly mounted on the outer wall of the outer cylinder, and a liquid outlet pipe is mounted outside the overflow cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the anaerobic purification cylinder as a conical cylindrical structure, the wastewater treated by anaerobes can be allowed to flow into the aerobic purification cylinder while ensuring the passage of wastewater; by setting the aerobic purification cylinder as a conical cylindrical structure, the oxygen can be stirred and mixed by setting a stirring rod, thereby ensuring the uniform distribution of oxygen; by using the anaerobic process and the aerobic process in water treatment in series, the effect of denitrification and phosphorus removal can be achieved, and the efficiency of water treatment can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of a pesticide production wastewater treatment device Figure 1 ;

[0015] Figure 2 The overall structure of a pesticide production wastewater treatment device Figure 2 ;

[0016] Figure 3 The overall structure of a pesticide production wastewater treatment device Figure 3 ;

[0017] Figure 4 A schematic diagram of the cross-sectional structure of a pesticide production wastewater treatment device Figure 1 ;

[0018] Figure 5 A schematic diagram of the cross-sectional structure of a pesticide production wastewater treatment device Figure 2 ;

[0019] Figure 6 It is a schematic diagram of a movable ring structure of a pesticide production wastewater treatment device;

[0020] Figure 7 A schematic diagram of the stirring rod structure of a pesticide production wastewater treatment device;

[0021] Figure 8 This is a schematic diagram of the driving rod and anaerobic purification cylinder structure of a pesticide production wastewater treatment device;

[0022] Fig. 9 A schematic diagram of the driving rod structure of a pesticide production wastewater treatment device;

[0023] Fig.10 This is a schematic diagram of the structure of an aerobic purification cylinder of a pesticide production wastewater treatment device;

[0024] In the figure: 1, outer cylinder; 11, overflow cylinder; 12, liquid outlet pipe; 2, aerobic purification cylinder; 21, exhaust pipe; 22, discharge pipe; 23, support seat; 24, aeration plate; 25, special-shaped ring plate; 26, through hole; 3, anaerobic purification cylinder; 31, liquid inlet pipe; 4, driving member; 41, driving shaft; 42, external thread; 5, horizontal bracket; 51, stirring rod; 52, lateral spoiler; 53, limit frame; 6, movable ring; 61, telescopic rod; 62, spring; 7, arc-shaped protrusion; 8, sleeve; 81, support rod; 82, driving rod; 9, floating plate. DETAILED DESCRIPTION

[0025] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] See also Figures 1 to 10In one embodiment, a pesticide production wastewater treatment device includes an outer cylinder 1, an aerobic purification cylinder 2, and an anaerobic purification cylinder 3. A liquid inlet pipe 31 is installed at the bottom of the anaerobic purification cylinder 3. One end of the liquid inlet pipe 31 is connected to the bottom of the anaerobic purification cylinder 3, and the other end passes through the outer cylinder 1 and extends out of the outer cylinder 1 to be connected with the wastewater discharge pipe. The anaerobic purification cylinder 3 and the aerobic purification cylinder 2 are conical structures with one end open. The top of the anaerobic purification cylinder 3 is open, and the bottom of the aerobic purification cylinder 2 is open. The open area of ​​the aerobic purification cylinder 2 is the gap between the inner wall of the aerobic purification cylinder 2 and the outer wall of the anaerobic purification cylinder 3. The top of the aerobic purification cylinder 2 is provided with an exhaust pipe 21 and a driving member 4. The driving member 4 can be a motor, and can also be a gear rack drive structure. The driving member 4 and the drive shaft 41 is connected, the aerobic purification cylinder 2 is arranged outside the anaerobic purification cylinder 3, the top of the anaerobic purification cylinder 3 is connected with the aerobic purification cylinder 2, the outer cylinder 1 is located outside the aerobic purification cylinder 2, the outer cylinder 1, the aerobic purification cylinder 2, and the anaerobic purification cylinder 3 are coaxially arranged, the bottom of the aerobic purification cylinder 2 is connected with the outer cylinder 1, a support seat 23 is fixedly installed on the outer wall of the aerobic purification cylinder 2, the support seat 23 is located at the top of the outer cylinder 1, a driving shaft 41 is rotatably installed at one end of the aerobic purification cylinder 2, a transverse bracket 5 is fixedly installed on the driving shaft 41, a stirring rod 51 extending between the outer wall of the anaerobic purification cylinder 3 and the inner wall of the aerobic purification cylinder 2 is installed on the transverse bracket 5, an aeration plate 24 is installed at the bottom of the aerobic purification cylinder 2, and the aeration plate 24 is connected with an oxygen supply device.

[0028] In this embodiment, when treating wastewater, the wastewater is first passed into the liquid inlet pipe 31 at the bottom of the anaerobic purification cylinder 3, and the wastewater enters the anaerobic purification cylinder 3 through the bottom of the anaerobic purification cylinder 3, and anaerobically treated in the anaerobic purification cylinder 3. After the treatment is completed, new wastewater flows in from the bottom liquid inlet pipe 31. The continuous introduction of wastewater allows the wastewater in the anaerobic purification cylinder 3 to reach the open part of the anaerobic purification cylinder 3, and then flows down from the top of the anaerobic purification cylinder 3 into the aerobic purification cylinder 2. Oxygen is supplied through the aeration disk 24 in the aerobic purification cylinder 2, so that the wastewater can be treated by aerobic microorganisms. The driving member 4 and the driving shaft 41 are provided to drive the stirring rod 51 to rotate, so that the wastewater and oxygen located between the outer wall of the anaerobic purification cylinder 3 and the inner wall of the aerobic purification cylinder 2 are evenly mixed, thereby improving the effect of aerobic microbial treatment. After the treatment is completed, it can flow into the outer cylinder 1 from the open part of the aerobic purification cylinder 2.

[0029] See also Figures 1 to 6 , Fig.10In one embodiment, a stirring rod 51 extending between the outer wall of the anaerobic purification cylinder 3 and the inner wall of the aerobic purification cylinder 2 is hingedly installed on the transverse bracket 5, and a limit frame 53 is slidably installed on the stirring rod 51. Both ends of the limit frame 53 are U-shaped structures. A special-shaped ring plate 25 is fixedly installed on the inner wall of the aerobic purification cylinder 2. One end of the limit frame 53 is slidably connected to the special-shaped ring plate 25. The special-shaped ring plate 25 is composed of a plurality of convex plates, and a sliding connection with the special-shaped ring plate 25 and the stirring rod 51 is achieved through the U-shaped structures at both ends. Side spoilers 52 are fixedly installed on both sides of the stirring rod 51.

[0030] In this embodiment, the stirring rod 51 and the transverse bracket 5 are rotatably installed. By providing a special-shaped ring plate 25 composed of a plurality of convex plates, the stirring rod 51 can have intermittent movement in the radial direction. The intermittent movement in the radial direction can realize disturbance mixing of the wastewater in the radial direction. While stirring the wastewater, the stirring rod 51 rotates around the axis and also has relative movement of the stirring rod 51, thereby realizing circumferential stirring of the wastewater and radial disturbance mixing, thereby realizing sufficient mixing of the wastewater and oxygen molecules, and ensuring the treatment effect of aerobic microorganisms. In addition, by providing a lateral spoiler 52, the radial disturbance effect can be maximized.

[0031] See also Fig.10 In one embodiment, a plurality of through holes 26 are formed on the special-shaped ring plate 25 .

[0032] In this embodiment, by providing the through hole 26, waste water can pass over the special-shaped ring plate 25 while the special-shaped ring plate 25 participates in radial movement. Secondly, the provision of the through hole 26 can also block the sediment, so that the liquid and the sediment can be separated.

[0033] See also Figures 6 to 9 In one embodiment, an external thread 42 is provided at one end of the driving shaft 41, and a sleeve 8 is threadedly connected to the driving shaft 41 through the external thread 42. An internal thread (not shown in the figure) is provided on the inner wall of the sleeve 8. A support rod 81 is fixedly installed on the sleeve 8. The support rod 81 is arranged horizontally, and a driving rod 82 is fixedly installed at one end of the support rod 81. The driving rod 82 is located between the outer wall of the anaerobic purification cylinder 3 and the inner wall of the aerobic purification cylinder 2.

[0034] In this embodiment, when stirring, the rotation direction of the drive shaft 41 is controlled so that the drive shaft 41 rotates and drives the sleeve 8 to move upward. When it moves above the external thread 42, as the drive shaft 41 continues to rotate, the drive shaft 41 rotates and drives the sleeve 8 to rotate synchronously. At this time, under the action of the stirring rod 51 and the driving rod 82, the wastewater can be stirred and mixed. After stirring for a certain period of time, the specific time can be determined according to the wastewater purification effect. At this time, the drive shaft 41 is controlled to reverse, and the sleeve 8 moves downward while reversing until it moves to the bottom of the external thread 42. The drive shaft 41 rotates and drives the sleeve 8 to rotate synchronously, so that the vertical position of the driving rod 82 can be adjusted through the external thread 42, thereby achieving the adjustment of the stirring height.

[0035] See also Figure 5 , Figure 6 , Figure 8 , Fig. 9 In one embodiment, a movable ring 6 is slidably installed at the bottom of the aerobic purification cylinder 2, and the movable ring 6 is located between the aerobic purification cylinder 2 and the anaerobic purification cylinder 3. The movable ring 6 is elastically installed at the bottom of the outer cylinder 1, and a plurality of arc-shaped protrusions 7 are fixedly installed on the movable ring 6, and the driving rod 82 intermittently abuts against the arc-shaped protrusions 7.

[0036] In this embodiment, the seal between the outer walls of the aerobic purification cylinder 2 and the anaerobic purification cylinder 3 can be achieved through the movable ring 6. When the movable ring 6 is squeezed by the driving rod 82, a flow gap can be created between the outer walls of the aerobic purification cylinder 2 and the anaerobic purification cylinder 3, so that the sediment flows through the gap to the bottom of the outer cylinder 1.

[0037] In this embodiment, during stirring, the rotation direction of the driving shaft 41 is controlled so that the driving shaft 41 rotates and drives the sleeve 8 to move upward. When it moves above the external thread 42, as the driving shaft 41 continues to rotate, the driving shaft 41 rotates and drives the sleeve 8 to rotate synchronously. At this time, under the action of the stirring rod 51 and the driving rod 82, the wastewater can be stirred and mixed. After stirring for a certain period of time, the specific time can be determined according to the wastewater purification effect. At this time, the driving shaft 41 is controlled to reverse, and the sleeve 8 moves downward while reversing. When it moves to the bottom of the external thread 42, the driving shaft 41 rotates and drives the sleeve 8 to rotate synchronously. At this time, the driving rod 82 rotates and intermittently engages with the arc-shaped protrusion 7 Contact, the cross-section of the arc-shaped protrusion 7 is a trapezoidal structure, so that the extrusion position of the movable ring 6 is maintained by the top surface of the trapezoid. At this time, the gap between the movable ring 6 and the aerobic purification cylinder 2 and the anaerobic purification cylinder 3 is the largest, and the discharge of the sediment can be maintained through the trapezoidal top surface structure. The two inclined surfaces of the trapezoid are the process of increasing or decreasing gaps. The part between the adjacent arc-shaped protrusions 7 keeps the movable ring 6 stationary and in a sealed state. Secondly, at the bottom of the outer cylinder 1, the part before the outer cylinder 1 and the bottom of the aerobic purification cylinder 2 just blocks the sediment to prevent the sediment from floating with the water flow, so that the solid and liquid in the wastewater can be separated, so that the sediment can be discharged through the discharge pipe 22, thereby avoiding the problem of filter screen clogging caused by solid-liquid separation.

[0038] See also Figure 6 , Figure 8 In one embodiment, a spring 62 and a telescopic rod 61 are installed between the movable ring 6 and the bottom of the outer tube 1.

[0039] In this embodiment, in order to realize the elastic connection between the movable ring 6 and the bottom of the outer tube 1, a spring 62 is provided, and the movable ring 6 can be stably lifted and lowered by providing a telescopic rod 61. The elastic connection method can also use elastic rubber, and is not limited to one implementation form of the spring 62.

[0040] See also Figure 8 , Fig. 9 In one embodiment, a floating plate 9 is rotatably mounted on the driving shaft 41 , and the floating plate 9 is located at the opening of the anaerobic purification cylinder 3 . The floating plate 9 can slide freely on the driving shaft 41 under the action of buoyancy.

[0041] In this embodiment, a floating plate 9 is also provided. When the anaerobic purification cylinder 3 is subjected to anaerobic microbial treatment, the anaerobic purification cylinder 3 can be closed by the floating plate 9. When the anaerobic purification cylinder 3 is overflowing, the floating plate 9 can float up by the buoyancy, thereby suppressing the water splashes on the surface of the wastewater, so that the wastewater is evenly dispersed in the circumferential direction, and at the same time, the overflowing wastewater can enter the aerobic purification cylinder 2.

[0042] See also Figure 1 , Figure 3 In one embodiment, an overflow tube 11 is fixedly mounted on the outer wall of the outer tube 1 , and a liquid outlet pipe 12 is mounted outside the overflow tube 11 .

[0043] In this embodiment, by providing an overflow tube 11, the sediment can be further blocked, thereby achieving solid-liquid separation while treating the wastewater, and the treated wastewater can be drained through the liquid outlet pipe 12 provided outside the overflow tube 11.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pesticide production wastewater treatment device, characterized in that: It comprises an outer cylinder, an aerobic purification cylinder and an anaerobic purification cylinder. A liquid inlet pipe is installed at the bottom of the anaerobic purification cylinder. The anaerobic purification cylinder and the aerobic purification cylinder are conical structures with one end open. The aerobic purification cylinder is arranged outside the anaerobic purification cylinder. The top of the anaerobic purification cylinder is communicated with the aerobic purification cylinder. The outer cylinder is located outside the aerobic purification cylinder. The outer cylinder, the aerobic purification cylinder and the anaerobic purification cylinder are arranged coaxially. The bottom of the aerobic purification cylinder is communicated with the outer cylinder. A driving shaft is rotatably installed at one end of the aerobic purification cylinder. The driving shaft is connected to a driving member, which is installed on the aerobic purification cylinder. A transverse bracket is fixedly installed on the driving shaft. A stirring rod extending between the outer wall of the anaerobic purification cylinder and the inner wall of the aerobic purification cylinder is installed on the transverse bracket. An aeration disk is installed at the bottom of the aerobic purification cylinder.

2. A pesticide production wastewater treatment device according to claim 1, characterized in that: A stirring rod extending between the outer wall of the anaerobic purification cylinder and the inner wall of the aerobic purification cylinder is hingedly installed on the transverse bracket, a limit frame is slidably installed on the stirring rod, a special-shaped ring plate is fixedly installed on the inner wall of the aerobic purification cylinder, one end of the limit frame is slidably connected to the special-shaped ring plate, and the special-shaped ring plate is composed of a plurality of convex plates.

3. A pesticide production wastewater treatment device according to claim 2, characterized in that: The special-shaped ring plate is provided with a plurality of through holes.

4. A pesticide production wastewater treatment device according to claim 1, characterized in that: One end of the driving shaft is provided with an external thread, a sleeve is threadedly connected to the driving shaft via the external thread, a support rod is fixedly installed on the sleeve, and one end of the support rod is fixedly installed with a driving rod.

5. A pesticide production wastewater treatment device according to claim 4, characterized in that: A movable ring is slidably mounted at the bottom of the aerobic purification cylinder. The movable ring is located between the aerobic purification cylinder and the anaerobic purification cylinder. The movable ring is elastically mounted at the bottom of the outer cylinder. A plurality of arc-shaped protrusions are fixedly mounted on the movable ring. The driving rod intermittently abuts against the arc-shaped protrusions.

6. A pesticide production wastewater treatment device according to claim 5, characterized in that: A spring and a telescopic rod are installed between the movable ring and the bottom of the outer cylinder.

7. A pesticide production wastewater treatment device according to any one of claims 1 to 6, characterized in that: A floating plate is rotatably mounted on the driving shaft, and the floating plate is located at the open end of the anaerobic purification cylinder.

8. A pesticide production wastewater treatment device according to any one of claim 7, characterized in that: An overflow cylinder is fixedly mounted on the outer wall of the outer cylinder, and a liquid outlet pipe is mounted outside the overflow cylinder.

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