A wastewater treatment device

Abstract

The present application discloses a wastewater treatment device, which relates to the technical field of wastewater treatment. It includes a treatment tank, a treatment chamber is provided in the treatment tank, a stirring shaft located in the treatment chamber is rotatably connected to the treatment tank, and a driving member is provided on the treatment tank; a stirring pipe is rotatably connected to the treatment tank, the stirring pipe is sleeved on the outer peripheral side of the stirring shaft and the bottom of the stirring pipe is closed, a stirring space is formed between the stirring pipe and the stirring shaft, and a transmission component is provided on the treatment tank to drive the stirring pipe to rotate in the opposite direction when the stirring shaft rotates. Stirring blades are provided on the outer peripheral side of the stirring shaft, and stirring paddles are provided on the outer peripheral side of the stirring pipe; a water inlet pipe is provided on the treatment tank, a coagulation pipe communicating with the stirring space and located at the pipe orifice position of the stirring pipe is provided on the treatment tank, and a plurality of discharge pipes communicating with the stirring space are circumferentially spaced along the outer peripheral side of the stirring pipe and near the bottom position, and a flocculation pipe communicating with the treatment chamber is provided on the treatment tank, and a drain pipe is provided near the top position of the treatment tank. The present application can improve the space utilization rate.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment, and particularly relates to a wastewater treatment device. Background Art

[0002] Wastewater treatment is to use physical, chemical, and biological methods to treat wastewater, purify the wastewater, reduce pollution, enable the wastewater to be recycled and reused, and is conducive to making full use of water resources.

[0003] Currently, when treating wastewater by chemical methods, it is generally based on adding chemicals to generate chemical reactions to achieve wastewater treatment. To improve the treatment effect, a grading treatment tank is usually set up during treatment. The wastewater first enters the first-stage treatment tank, and then a coagulant is added to the first-stage treatment tank for stirring and neutralization. After the wastewater fully reacts, it is discharged to the second-stage treatment tank, and a flocculant is added to the second-stage treatment tank for stirring. After full reaction, the precipitated wastewater is then sent to the next process.

[0004] Regarding the above related technologies, the inventor found the following defects: When treating wastewater by chemical methods, multiple treatment tanks need to be set up, and a large amount of space is required for setting up the treatment tanks. Summary of the Invention

[0005] In order to reduce the space required for wastewater treatment, this application provides a wastewater treatment device.

[0006] This application provides a wastewater treatment device, adopting the following technical solution:

[0007] A wastewater treatment device includes a treatment tank. A treatment chamber is provided in the treatment tank. A stirring shaft located in the treatment chamber is rotatably connected to the treatment tank, and a driving member for driving the stirring shaft to rotate is provided on the treatment tank;

[0008] A stirring pipe is rotatably connected to the treatment tank. The stirring pipe is sleeved on the outer peripheral side of the stirring shaft and the bottom of the stirring pipe is closed. A stirring space is formed between the stirring pipe and the stirring shaft. The treatment tank is provided with a transmission component for driving the stirring pipe to rotate in the opposite direction when the stirring shaft rotates. A plurality of stirring blades located in the stirring space are provided on the outer peripheral side of the stirring shaft, and a plurality of stirring paddles located in the treatment chamber are provided on the outer peripheral side of the stirring pipe;

[0009] The treatment tank is provided with a water inlet pipe communicating with the stirring space and located at the pipe orifice position of the stirring pipe, a coagulant pipe communicating with the stirring space and located at the pipe orifice position of the stirring pipe. A plurality of discharge pipes communicating with the stirring space are circumferentially spaced along the outer peripheral side of the stirring pipe and near the bottom position. The treatment tank is provided with a flocculant pipe communicating with the treatment chamber, and a drain pipe is provided near the top position of the treatment tank.

[0010] By adopting the above technical solution, when processing, the driving member is started and the wastewater and the coagulant are introduced into the stirring space. At this time, the stirring shaft rotates and drives the stirring tube to rotate through the transmission assembly, so that the stirring blades stir and mix the wastewater and the coagulant. After stirring, the wastewater is discharged into the treatment cavity through the discharge pipe, and the flocculant is introduced into the treatment cavity through the flocculation pipe, and then is mixed and reacted with the wastewater. Finally, the wastewater is discharged through the drain pipe. The whole process is simple. While the wastewater is mixed with the coagulant, the reacted wastewater is continuously discharged into the treatment cavity through the discharge pipe for flocculation, greatly reducing the space required for wastewater coagulation. At the same time, the coagulation place of the wastewater and the coagulant and the flocculation place of the wastewater and the flocculant are combined, greatly improving the space utilization rate and reducing the space demand.

[0011] Optionally, the transmission assembly includes a transmission rack, a transmission gear and a power gear. The power gear is arranged on the outer peripheral side of the stirring shaft. The transmission gear is rotatably connected to the treatment tank and meshes with the power gear. The transmission rack is arranged on the peripheral side wall of the stirring tube, and the transmission gear meshes with the transmission rack.

[0012] By adopting the above technical solution, when the stirring shaft rotates, the power gear drives the transmission gear to rotate, so that the transmission gear drives the stirring tube to rotate through the transmission rack. And the rotation direction of the stirring tube is opposite to that of the stirring shaft, so that the flow direction of the wastewater is opposite to the rotation direction of the stirring blades, reducing the possibility of the wastewater moving in the same direction as the stirring blades, which is beneficial to improving the stirring effect.

[0013] Optionally, the stirring shaft includes a connecting column. The stirring shaft is provided with a kidney-shaped hole extending along the axial direction. The connecting column slides up and down in the kidney-shaped hole and both ends protrude out of the kidney-shaped hole. The stirring blades are arranged at the ends of the connecting column. An installation sleeve is slidably sleeved on the outer peripheral side of the stirring shaft up and down. The connecting column is rotatably connected to the installation sleeve. The stirring shaft is provided with a driving assembly. When the stirring shaft rotates, the driving assembly drives the connecting column to rotate and slide up and down at the same time.

[0014] By adopting the above technical solution, when the stirring shaft rotates, the driving assembly drives the connecting column to move up and down and rotate at the same time, improving the stirring effect of the stirring blades on the wastewater.

[0015] Optionally, the driving assembly includes a driving gear, a driving rack, and a driving block. The driving blocks are arranged at intervals in the circumferential direction and are located directly below the mounting sleeve. A driving column is provided at the bottom of the mounting sleeve, and a hemispherical slider is provided at the bottom of the driving column. The stirring shaft is provided with an elastic driving member for driving the connecting column to slide downward. An arc-shaped convex surface is formed on one side of the driving block facing the mounting sleeve. The slider slides on the bottom of the stirring tube and the arc-shaped convex surface. The driving gear is arranged on the connecting column, and the driving rack is arranged in the stirring shaft. The driving gear meshes with the driving rack.

[0016] By adopting the above technical solution, the slider slides on the driving block, and at the same time, the mounting sleeve slides up and down under the cooperation of the gravity of the mounting sleeve, the connecting shaft, etc., so that the connecting column slides up and down with the mounting sleeve. At this time, the driving gear and the driving rack cooperate to drive the connecting column to rotate, which is beneficial to realizing the effect of the stirring blade moving up and down while rotating.

[0017] Optionally, the elastic driving member is a driving spring. The driving spring is arranged in the kidney-shaped hole. One end of the driving spring abuts against the connecting column, and the other end of the driving spring abuts against the top hole wall of the kidney-shaped hole.

[0018] By adopting the above technical solution, the driving spring elastically releases and pushes the connecting column to slide downward, accelerating the downward sliding speed of the mounting sleeve, which is beneficial to keeping the slider in contact with the bottom pipe wall of the stirring tube and the driving block.

[0019] Optionally, a spray head is rotatably connected to one side of the discharge pipe away from the stirring tube. A plurality of spray nozzles are provided on the periphery of the spray head. The treatment tank is provided with a control assembly for controlling the rotation of the spray head when the stirring tube rotates.

[0020] By adopting the above technical solution, when the stirring tube rotates, the control assembly controls the rotation of the spray head, so that the spraying range of the wastewater is expanded, which is beneficial to the more uniform diffusion of the wastewater in the treatment chamber.

[0021] Optionally, the control assembly includes a control rack and a control gear. The control rack is arranged on the circumferential side wall of the treatment chamber in the circumferential direction. A control column is connected to one side of the spray head away from the stirring tube. The control gear is arranged on the control column. The control gear meshes with the control rack.

[0022] By adopting the above technical solution, when the stirring tube rotates, the control gear meshes with the control rack, causing the connecting column to rotate, which is beneficial to driving the spray head to rotate.

[0023] Optionally, the control gear is located below the control rack.

[0024] By adopting the above technical solution, the possibility that impurities in the wastewater fall onto the control rack and affect the use of the control gear is reduced.

[0025] In summary, the present application includes at least one of the following beneficial effects:

[0026] 1. While coagulating the wastewater, the coagulated wastewater is discharged into the treatment chamber through the discharge pipe, reducing the space required for wastewater coagulation. At the same time, coagulation is combined with flocculation, greatly improving the space utilization rate.

[0027] 2. When the stirring shaft rotates, the stirring blades move up and down and rotate at the same time, further disturbing the wastewater and enhancing the mixing reaction effect between the wastewater and the coagulant. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the external structure of an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of the internal cross-section of an embodiment of the present application;

[0030] Figure 3 is Figure 2 an enlarged schematic diagram of part A of

[0031] Figure 4 is Figure 2 an enlarged schematic diagram of part B of

[0032] Figure 5 is Figure 2 an enlarged schematic diagram of part C of

[0033] Reference numerals: 1, treatment tank; 11, treatment chamber; 12, water inlet pipe; 13, coagulation pipe; 14, discharge pipe; 141, spray head; 142, spray orifice; 143, control column; 15, flocculation pipe; 16, drain pipe; 2, stirring shaft; 21, stirring blades; 22, connecting column; 23, kidney-shaped hole; 231, receiving groove; 24, mounting sleeve; 25, driving column; 251, slider; 26, driving spring; 3, stirring pipe; 31, stirring paddle; 4, stirring space; 5, transmission assembly; 51, transmission rack; 52, transmission gear; 53, power gear; 6, driving block; 61, driving gear; 62, driving rack; 7, control assembly; 71, control rack; 72, control gear; 8, driving member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following further describes the present application in detail with reference to the Figures 1-5 accompanying drawings.

[0035] An embodiment of the present application discloses a wastewater treatment device. Refer to Figure 1 And Figure 2, the wastewater treatment device includes a treatment tank 1. A treatment chamber 11 is provided inside the treatment tank 1. The treatment tank 1 is rotatably connected to a stirring shaft 2. The stirring shaft 2 extends in the vertical direction and is located at the middle position of the treatment chamber 11.

[0036] See Figure 2 , the treatment tank 1 is provided with a driving member 8. The driving member 8 is a driving motor. The driving motor is fixed on the top of the treatment tank 1 and the output shaft is fixedly connected to the stirring shaft 2. When the driving motor is started during use, it can drive the stirring shaft 2 to rotate.

[0037] See Figure 2 , the treatment tank 1 is provided with a stirring pipe 3. The stirring pipe 3 is connected to the top wall of the treatment tank 1 through a bearing. The inside of the stirring pipe 3 is hollow, with an opening at the top and a closed bottom. The stirring pipe 3 is sleeved on the outer peripheral side of the stirring shaft 2, and a stirring space 4 is formed between the inner pipe wall of the stirring pipe 3 and the stirring shaft 2.

[0038] See Figure 2 , the top wall of the treatment tank 1 is fixed with a water inlet pipe 12 and a coagulant pipe 13. The pipe orifices of the water inlet pipe 12 and the coagulant pipe 13 extend into the stirring space 4 and are located near the top wall of the treatment tank 1. During use, wastewater enters the stirring space 4 through the water inlet pipe 12, and the coagulant enters the stirring space 4 through the coagulant pipe 13. A plurality of groups of stirring blades 21 are arranged at intervals up and down on the outer peripheral side of the stirring shaft 2. Each group of stirring blades 21 has two and is symmetrically arranged.

[0039] See Figure 2 And Figure 3 , the treatment tank 1 is provided with a transmission assembly 5. When the stirring shaft 2 rotates, the transmission assembly 5 transmits power, causing the stirring shaft 2 to rotate in opposite directions, so that the stirring blades 21 can effectively stir the wastewater and the coagulant in the stirring space 4.

[0040] See Figure 2 And Figure 3 , the transmission assembly 5 includes a transmission rack 51, a transmission gear 52 and a power gear 53. The power gear 53 is fixed on the outer peripheral side of the stirring shaft 2. The transmission gear 52 is rotatably connected to the top wall of the treatment tank 1 and is located in the stirring space 4. The transmission gear 52 meshes with the power gear 53. The transmission rack 51 is of an annular rack structure and is fixed on the inner wall of the stirring pipe 3 near the top position. The transmission rack 51 meshes with the transmission gear 52. When the power gear 53 drives the transmission gear 52 to rotate, the transmission gear 52 drives the power gear 53 to rotate. At this time, the stirring pipe 3 rotates and the rotation direction is opposite to that of the stirring shaft 2, which can drive the wastewater to flow, and the flow direction is opposite to the movement direction of the stirring blades 21, so that the stirring blades 21 can better stir the coagulant and the wastewater.

[0041] See Figure 4, the stirring shaft 2 includes a plurality of connecting columns 22. A kidney-shaped hole 23 with a hole depth direction extending horizontally is formed in the stirring shaft 2. The kidney-shaped holes 23 correspond to the connecting columns 22 one by one and are evenly spaced up and down. The connecting columns 22 slide up and down in the kidney-shaped holes 23 and are perpendicular to and intersect with the central axis of the stirring shaft 2. Both ends of the connecting columns 22 extend outside the kidney-shaped holes 23. An installation sleeve 24 is slidably sleeved on the outer peripheral side of the stirring shaft 2 up and down. The inner wall of the installation sleeve 24 is in sliding contact with the outer peripheral side of the stirring shaft 2. The connecting columns 22 are rotatably connected to the installation sleeve 24 and extend outside the installation sleeve 24. The stirring blades 21 are fixed to the ends of the connecting columns 22 and are located outside the installation sleeve 24. The stirring shaft 2 is provided with a driving assembly. When the stirring shaft 2 rotates, the driving assembly drives the installation sleeve 24 to move up and down while driving the connecting columns 22 to rotate, so that the stirring blades 21 move up and down while rotating, further disturbing the wastewater and the coagulant and improving the mixing reaction effect of the wastewater and the coagulant.

[0042] See Figure 2 and Figure 4 , the driving assembly includes a driving gear 61, a driving rack 62 and a driving block 6. There are a plurality of driving blocks 6, which are fixedly arranged on the bottom pipe wall of the stirring pipe 3 at equal intervals along the circumferential direction with the central axis of the stirring shaft 2 as the center. The driving blocks 6 are located in the stirring space 4 and are directly below the installation sleeve 24. The driving block 6 is an arc-shaped block structure, and the top of the driving block 6 is an arc-shaped convex surface, and the arc-shaped convex surface faces the installation sleeve 24. A driving column 25 is fixedly connected to the bottom of the installation sleeve 24, and a hemispherical block-shaped slider 251 is fixedly connected to the bottom of the driving column 25. The arc-shaped convex surface side of the slider 251 faces the driving block 6. The stirring shaft 2 is provided with an elastic driving member. The elastic driving member is a driving spring 26. The driving spring 26 is installed in the kidney-shaped hole 23. One end of the driving spring 26 abuts against the outer peripheral side of the connecting column 22, and the other end abuts against the top hole wall of the kidney-shaped hole 23. During use, the driving spring 26 elastically releases and pushes the connecting column 22 downward, so that the installation sleeve 24 drives the driving column 25 downward to keep the slider 251 in contact with the bottom pipe wall of the stirring pipe 3 or the driving block 6. When the stirring shaft 2 rotates, the stirring shaft 2 and the stirring pipe 3 move in opposite directions. At this time, the slider 251 slides on the bottom pipe wall of the stirring pipe 3 and the arc-shaped convex surface of the driving block 6 respectively, so that the installation sleeve 24 moves up and down.

[0043] See Figure 2 and Figure 4 , the driving gear 61 is fixed on the outer peripheral side of the connecting column 22. Accommodating grooves 231 are respectively formed in the vertical hole walls on the opposite sides of the kidney-shaped hole 23. The driving rack 62 is installed in one of the accommodating grooves 231 and meshes with the driving gear 61. When the installation sleeve 24 moves up and down, the driving gear 61 and the driving rack 62 cooperate to make the connecting column 22 rotate, and the rotation direction of the connecting column 22 when the installation sleeve 24 slides upward is opposite to the rotation direction of the connecting column 22 when the installation sleeve 24 slides downward.

[0044] See Figure 5 Figure 5 , on the outer peripheral side of the stirring tube 3 and near the bottom position, a discharge pipe 14 is fixedly connected. There are multiple discharge pipes 14, which are evenly spaced along the circumferential direction. The discharge pipe 14 communicates with the stirring space 4. A spray head 141 is rotatably connected to the position of the discharge pipe 14 away from the stirring tube 3. A plurality of spray nozzles 142 are evenly spaced on the outer peripheral side of the spray head 141. The spray nozzles 142 are spaced along the circumferential direction with the central axis of the discharge pipe 14 as the center. During stirring, the wastewater reacted with the coagulant in the stirring space 4 enters the discharge pipe 14 under the action of pressure and inertia force, and enters the treatment chamber 11 through the spray nozzles 142.

[0045] See Figure 2 Figure 2 , the treatment tank 1 is fixedly connected with a flocculation pipe 15. The flocculation pipe 15 extends into the treatment chamber 11 and the pipe orifice is located at the position of the treatment chamber 11 close to the discharge pipe 14, for introducing the flocculant and reacting with the wastewater in the treatment chamber 11.

[0046] See Figure 5 Figure 5 , the treatment tank 1 is provided with a control component 7. When the stirring tube 3 rotates, the control component 7 controls the rotation of the spray head 141, improving the spraying range of the wastewater sprayed from the spray nozzles 142, so that the wastewater entering the treatment chamber 11 can be relatively evenly diffused, improving the mixing effect of the flocculant and the wastewater.

[0047] See Figure 5 Figure 5 , the control component 7 includes a control rack and a control gear 72. The control rack 71 is fixed along the circumferential direction on the circumferential side wall of the treatment chamber 11 with the central axis of the stirring shaft 2 as the center. A control column 143 is fixedly connected to the side of the spray head 141 away from the discharge pipe 14. The control gear 72 is fixed on the outer peripheral side of the control column 143. The control gear 72 is located directly below the control rack 71, and the control gear 72 meshes with the control rack 71. When the stirring tube 3 rotates, the control gear 72 slides on the control rack 71. At this time, the control rack 71 drives the control gear 72 to rotate, so that the spray head 141 rotates, improving the spraying range of the wastewater.

[0048] See Figure 2 Figure 2 , the treatment tank 1 is connected with a drain pipe 16. The drain pipe 16 communicates with the treatment chamber 11 and is located at the position of the treatment tank 1 close to the top. The wastewater and the flocculant are stirred and mixed and then discharged from the drain pipe 16.

[0049] The implementation principle of the wastewater treatment device in the embodiment of the present application is as follows:

[0050] When processing, the driving motor is turned on to drive the stirring shaft 2 to rotate. Then, the wastewater is first introduced into the stirring space 4, and at the same time, a coagulant is introduced, so that the stirring blades 21 mix the wastewater and the coagulant. Then, the stirred wastewater is sprayed out through the spray port 142 and enters the treatment chamber 11. At the same time, a flocculant is introduced into the treatment chamber 11 to mix the flocculant with the wastewater. Finally, the wastewater is discharged through the drain pipe 16.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A wastewater treatment device, characterized in that: It includes a processing tank (1) with a processing chamber (11) formed therein. The processing tank (1) is rotatably connected to a stirring shaft (2) located in the processing chamber (11), and the processing tank (1) is provided with a driving member (8) for driving the stirring shaft (2) to rotate. The processing tank (1) is rotatably connected to a stirring pipe (3). The stirring pipe (3) is sleeved on the outer peripheral side of the stirring shaft (2) and the bottom of the stirring pipe (3) is closed. A stirring space (4) is formed between the stirring pipe (3) and the stirring shaft (2). The processing tank (1) is provided with a transmission assembly (5) for driving the stirring pipe (3) to rotate in the opposite direction when the stirring shaft (2) rotates. A plurality of stirring blades (21) are arranged on the outer peripheral side of the stirring shaft (2) in the stirring space (4), and a plurality of stirring paddles (31) are arranged on the outer peripheral side of the stirring pipe (3) in the processing chamber (11). The processing tank (1) is provided with a water inlet pipe (12) communicating with the stirring space (4) and located at the pipe orifice position of the stirring pipe (3), and a coagulant pipe (13) communicating with the stirring space (4) and located at the pipe orifice position of the stirring pipe (3). A plurality of discharge pipes (14) communicating with the stirring space (4) are arranged at intervals along the circumferential direction on the outer peripheral side of the stirring pipe (3) near the bottom position. The processing tank (1) is provided with a flocculation pipe (15) communicating with the processing chamber (11), and a drain pipe (16) is arranged near the top position of the processing tank (1). The transmission assembly (5) includes a transmission rack (51), a transmission gear (52) and a power gear (53). The power gear (53) is arranged on the outer peripheral side of the stirring shaft (2). The transmission gear (52) is rotatably connected to the processing tank (1) and meshes with the power gear (53). The transmission rack (51) is arranged on the circumferential side wall of the stirring pipe (3), and the transmission gear (52) meshes with the transmission rack (51). The stirring shaft (2) includes a connecting column (22). The stirring shaft (2) is provided with a kidney-shaped hole (23) extending axially. The connecting column (22) slides up and down in the kidney-shaped hole (23) and both ends protrude out of the kidney-shaped hole (23). The stirring blades (21) are arranged at the ends of the connecting column (22). An installation sleeve (24) is slidably sleeved on the outer peripheral side of the stirring shaft (2) up and down. The connecting column (22) is rotatably connected to the installation sleeve (24). The stirring shaft (2) is provided with a driving assembly. When the stirring shaft (2) rotates, the driving assembly drives the connecting column (22) to rotate and slide up and down at the same time. The driving assembly includes a driving gear (61), a driving rack (62) and a driving block (6). The driving blocks (6) are arranged at intervals in the circumferential direction and are located directly below the mounting sleeve (24). A driving column (25) is provided at the bottom of the mounting sleeve (24), and a hemispherical slider (251) is provided at the bottom of the driving column (25). An elastic driving member for driving the connecting column (22) to slide downward is provided on the stirring shaft (2). An arc-shaped convex surface is formed on one side of the driving block (6) facing the mounting sleeve (24). The slider (251) slides on the bottom of the stirring tube (3) and the arc-shaped convex surface. The driving gear (61) is arranged on the connecting column (22), the driving rack (62) is arranged in the stirring shaft (2), and the driving gear (61) meshes with the driving rack (62).

2. The wastewater treatment device according to claim 1, characterized in that: The elastic driving member is a driving spring (26). The driving spring (26) is arranged in the kidney-shaped hole (23). One end of the driving spring (26) abuts against the connecting column (22), and the other end of the driving spring (26) abuts against the top hole wall of the kidney-shaped hole (23).

3. The wastewater treatment device according to claim 1, characterized in that: A spray head (141) is rotatably connected to one side of the discharge pipe (14) away from the stirring tube (3). A plurality of spray openings (142) are formed on the circumferential side of the spray head (141). The treatment tank (1) is provided with a control assembly (7) for controlling the rotation of the spray head (141) when the stirring tube (3) rotates.

4. The wastewater treatment device according to claim 3, characterized in that: The control assembly (7) includes a control rack (71) and a control gear (72). The control rack (71) is arranged on the circumferential side wall of the treatment chamber (11) in the circumferential direction. A control column (143) is connected to one side of the spray head (141) away from the stirring tube (3). The control gear (72) is arranged on the control column (143), and the control gear (72) meshes with the control rack (71).

5. The wastewater treatment device according to claim 4, characterized in that: The control gear (72) is located below the control rack (71).

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