Water conservancy construction sewage treatment device

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a water conservancy construction sewage treatment device which comprises a treatment pond, a moving mechanism, a stirring mechanism, a material guiding mechanism and a back flushing mechanism. The moving mechanism comprises a mounting box and a driving motor, the mounting box is slidably mounted above the treatment pond, and the mounting box is controlled by the driving motor to move; the stirring mechanism comprises a mounting shaft, stirring blades and flow guide blades, the mounting shaft is rotationally arranged at the bottom of the mounting box, the stirring blades and the flow guide blades are fixedly mounted on the radial outer wall of the mounting shaft, and the flow guide blades are located at the bottom of the mounting shaft and are spirally arranged; the material guiding mechanism comprises a deslagging cylinder, a material conveying auger and a separating plate, the separating plate is fixedly mounted on the outer wall of the deslagging cylinder, the deslagging cylinder is obliquely arranged on the side wall of the mounting box, and the material conveying auger is rotationally mounted on the inner wall of the deslagging cylinder; through cooperation of the structure, the continuity and sufficiency of the flocculation reaction are improved, and the problems that a traditional device is low in treatment efficiency and unstable in effluent quality are solved.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically a wastewater treatment device for water conservancy construction. Background Technology

[0002] During water conservancy construction operations, a large amount of wastewater containing silt, suspended particles, and colloidal impurities is generated. Direct discharge of such wastewater can easily cause problems such as river siltation, water turbidity, and ecological damage. Therefore, on-site wastewater treatment is necessary. Flocculation and sedimentation is a commonly used method for treating wastewater from water conservancy construction. By adding flocculants to the wastewater, fine suspended particles and colloidal substances in the water aggregate to form flocculent precipitates, which are then separated into solid and liquid substances through static settling.

[0003] Traditional wastewater treatment devices used in water conservancy construction often employ an intermittent treatment mode of centralized flocculation followed by unified sludge discharge. After the wastewater completes the flocculation reaction in the treatment tank, it is necessary to wait for the flocs to settle sufficiently before sludge removal. It is difficult to achieve simultaneous sludge removal during the flocculation process. This method has obvious drawbacks in practical use: On the one hand, the formed flocculent sediment remains in the treatment tank for a long time and is easily broken and dispersed under water flow disturbance, returning to the water body and causing the turbidity of the wastewater to rise. This not only reduces the flocculation effect but also increases the consumption of reagents and reaction time. On the other hand, a large amount of flocs continuously deposits at the bottom of the tank, which can easily lead to accumulation and caking, blocking water flow channels and sewage discharge points, causing the effective volume of the treatment tank to continuously decrease, affecting the influent and effluent and reaction efficiency.

[0004] Meanwhile, traditional devices cannot remove the precipitates that have already reacted in a timely manner, and the newly added reagents do not come into sufficient contact with the unreacted impurities in the wastewater. The flocculation reaction is not continuous, and there is a tendency for local over-reaction and local under-reaction, resulting in insufficient stability of the effluent quality.

[0005] Therefore, the present invention provides a wastewater treatment device for water conservancy construction. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a water conservancy construction sewage treatment device according to the present invention, comprising a treatment tank, a moving mechanism, a stirring mechanism, a material guiding mechanism and a backflushing mechanism;

[0008] The moving mechanism includes a mounting box and a drive motor. The mounting box is slidably mounted above the treatment tank, and the movement of the mounting box is controlled by the drive motor.

[0009] The stirring mechanism includes a mounting shaft, stirring blades, and guide vanes. The mounting shaft is rotatably mounted at the bottom of the mounting box. The stirring blades and guide vanes are both fixedly mounted on the radial outer wall of the mounting shaft. The guide vanes are located at the bottom of the mounting shaft and are arranged in a spiral shape.

[0010] The material guiding mechanism includes a slag discharge cylinder, a material conveying auger, and a separation plate. The separation plate is fixedly installed on the outer wall of the slag discharge cylinder, the slag discharge cylinder is inclinedly installed on the side wall of the mounting box, and the material conveying auger is rotatably installed on the inner wall of the slag discharge cylinder.

[0011] The backflushing mechanism includes a backflushing hood and a gas storage tank. The backflushing hood is fixedly installed on the outer wall of the treatment tank, and gas is delivered into the backflushing hood through the gas storage tank.

[0012] Preferably, the drive motor is fixedly installed on the outer wall of the treatment tank, a control screw is rotatably installed on the outer wall of the treatment tank, a transmission frame is installed on the outer wall of the control screw through a threaded connection, and the outer wall of the mounting box is fixedly connected to the side wall of the transmission frame.

[0013] A material guide motor is fixedly installed at the axial end of the slag discharge cylinder, and the output shaft of the material guide motor is fixedly connected to the axial end of the material conveying auger.

[0014] Preferably, a slag discharge trough is fixedly installed on the outer wall of the slag discharge cylinder, and the inner wall of the slag discharge trough is inclined.

[0015] A discharge trough is fixedly installed on the upper end face of the treatment tank. The bottom of the slag discharge trough slides and fits against the upper end face of the discharge trough. An installation rod is fixedly connected to the outer wall of the installation shaft, and the other end of the installation rod is fixedly connected to the outer wall of the stirring blade.

[0016] Preferably, an installation plate is fixedly installed on the upper end face of the treatment tank, the installation plate has a cavity inside, a conveying pipe is fixedly installed on the outer wall of the installation plate, the other end of the conveying pipe is fixedly connected to the outer wall of the backflush shroud, and the inner cavity of the backflush shroud is connected to the inner cavity of the installation plate through the conveying pipe.

[0017] The height of the backflushing hood is flush with the height of the separation plate. A connecting pipe is fixedly installed on the outer wall of the treatment tank. The inner cavity of the connecting pipe is connected to the inner cavity of the mounting plate. A sealing plate is fixedly installed on the outer wall of the slag discharge cylinder.

[0018] Preferably, the air tank is fixedly installed on the outer wall of the mounting box, and an adapter pipe for connecting pipe insertion is fixedly installed on the outer wall of the mounting box, and a sealing ring is fixedly installed on the outer wall of the connecting pipe;

[0019] A support ring is fixedly installed in the inner cavity of the adapter pipe. A tapered hole is opened in the inner wall of the support ring, and a tapered plug is installed in the tapered hole.

[0020] A connecting rod is fixedly installed at the axial end of the conical plug, and a hollow frame is fixedly installed at the end of the connecting rod away from the conical plug. The outer wall of the hollow frame is fixedly connected to the outer wall of the support ring through an elastic element.

[0021] Preferably, the inner wall of the mounting box has a drive shaft that rotates, the axial end of the drive shaft is fixedly connected to the axial end of the mounting shaft, and a control motor is fixedly installed on the upper end face of the mounting box. The control motor is used to control the rotation of the drive shaft.

[0022] A guide tube is fixedly installed on the outer wall of the mounting box. The outer wall of the guide tube is provided with a unidirectional inlet pipe and an outlet pipe. A control plug is slidably installed on the inner wall of the guide tube. The outlet end of the guide tube is connected to the inner cavity of the gas storage tank. A pressure relief valve is provided on the outer wall of the gas storage tank.

[0023] A guide rod is fixedly installed on the bottom surface of the control plug, and the guide rod is slidably connected to the inner wall of the mounting box;

[0024] A control shaft is fixedly installed at the axial end of the drive shaft, and a drive cylinder is fixedly installed on the bottom surface of the control plug. The drive cylinder is slidably sleeved on the outer wall of the control shaft and connected to the control shaft through a reciprocating thread fit.

[0025] The beneficial effects of this invention are as follows:

[0026] 1. This invention effectively solves the core problem of asynchronous flocculation and sludge discharge in traditional devices by incorporating stirring blades, a conveying auger, and a separation plate. In traditional devices, the flocculent precipitates formed over a long period are prone to breakage and caking, leading to decreased flocculation efficiency, increased reagent consumption, and poor treatment continuity. This invention achieves thorough mixing of wastewater and flocculant through stirring blades, while simultaneously driving the flocs to converge in a directional manner. The conveying auger promptly discharges the flocs, and the separation plate separates the sludge from the water and allows the liquid to flow back for continued reaction. This avoids floc breakage and backflow, as well as sedimentation and caking at the bottom of the tank, reducing reagent waste and improving the continuity and sufficiency of the flocculation reaction. It solves the problems of low treatment efficiency and unstable effluent quality in traditional devices, meeting the needs of continuous wastewater treatment in water conservancy construction.

[0027] 2. This invention, by incorporating a control shaft, a guide tube, and a backflushing hood, extends the dual advantages of self-supply of air and online cleaning of the separation plate. The control shaft drives the control plug to slide back and forth within the guide tube, automatically extracting air and storing it in the air storage tank, eliminating the need for additional air source equipment and reducing equipment operating costs. The backflushing hood can perform online backflushing cleaning of clogged separation plates without requiring downtime for disassembly, reducing maintenance time, while ensuring smooth slag-water separation and liquid return, extending the equipment's service life. Furthermore, this design achieves coordinated linkage of stirring, air storage, backflushing, and slag discharge, making the overall operation of the device more efficient and stable, adaptable to the wastewater treatment needs of complex water conservancy construction scenarios. Attached Figure Description

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is an installation diagram of the mounting box in this invention;

[0031] Figure 3 This is a schematic diagram of the installation of the mounting shaft in this invention;

[0032] Figure 4 This is a schematic diagram of the installation of the control plug in this invention;

[0033] Figure 5 This is a schematic diagram of the installation of the material conveying auger in this invention;

[0034] Figure 6 This is a schematic diagram of the structure of the recoil shield in this invention;

[0035] Figure 7 This is a schematic diagram of the internal structure of the transfer pipe in this invention.

[0036] In the diagram: 1. Treatment tank; 2. Mounting shaft; 3. Mounting box; 4. Control motor; 5. Slag discharge cylinder; 6. Material guide motor; 7. Backflush hood; 8. Mounting plate; 9. Connecting pipe; 10. Drive motor; 11. Slag discharge trough; 12. Unloading trough; 13. Air storage tank; 14. Guide cylinder; 15. Transmission frame; 16. Agitator blade; 17. Control screw; 18. Separation plate; 19. Sealing plate; 20. Mounting rod; 21. Guide blade; 22. Transfer pipe; 23. Control shaft; 24. Transmission shaft; 25. Transmission cylinder; 26. Control plug; 27. Material conveying auger; 28. Conveying pipe; 29. ​​Sealing ring; 30. Support ring; 31. Hollow frame; 32. Connecting rod; 33. Conical plug; 34. Guide rod. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] like Figures 1 to 7 As shown, the wastewater treatment device for water conservancy construction of the present invention includes a treatment tank 1, a moving mechanism, a stirring mechanism, a material guiding mechanism, and a backflushing mechanism. By adding flocculant into the treatment tank 1, the fine particles and colloidal impurities suspended in the wastewater are destabilized and aggregated, gradually forming large-volume flocculent flocculations with good settling performance. Under the action of gravity, solid-liquid separation is achieved, effectively removing suspended solids, colloids, and some pollutants from the water body, providing water quality assurance for subsequent water treatment processes, and improving the overall wastewater treatment efficiency and the stability of effluent compliance.

[0039] The moving mechanism includes a mounting box 3 and a drive motor 10. The mounting box 3 is slidably mounted above the treatment pool 1. The drive motor 10 controls the movement of the mounting box 3, and the bottom surface of the mounting box 3 slides and fits against the upper surface of the treatment pool 1.

[0040] The drive motor 10 is fixedly installed on the outer wall of the treatment tank 1. A control screw 17 is rotatably installed on the outer wall of the treatment tank 1. The output shaft of the drive motor 10 is fixedly connected to the axial end of the control screw 17. The drive motor 10 drives the control screw 17 to rotate.

[0041] The outer wall of the control screw 17 is fitted with a transmission frame 15 by a threaded connection. The outer wall of the mounting box 3 is fixedly connected to the side wall of the transmission frame 15. When the control screw 17 rotates, it drives the transmission frame 15 to move, thereby controlling the movement of the mounting box 3.

[0042] The stirring mechanism includes a mounting shaft 2, stirring blades 16, and guide vanes 21. The mounting shaft 2 is rotatably mounted at the bottom of the mounting box 3. During the movement of the mounting shaft 2, it drives the mounting shaft 2 to move synchronously. There are two mounting shafts 2, and gears are provided on the outer walls of both mounting shafts 2. The two gears mesh with each other, and rotating one mounting shaft 2 drives the other mounting shaft 2 to rotate.

[0043] Both the stirring blade 16 and the guide blade 21 are fixedly installed on the radial outer wall of the mounting shaft 2. Rotating the mounting shaft 2 drives the stirring blade 16 and the guide blade 21 to rotate synchronously. The stirring blade 16 stirs the liquid inside the treatment tank 1, promoting the mixing of flocculant and sewage.

[0044] The guide vane 21 is located at the bottom of the mounting shaft 2 and is arranged in a spiral shape. When the guide vane 21 rotates, it controls the liquid at the bottom of the treatment tank 1 to move upward.

[0045] The drive motor 10 drives the control screw 17 to rotate, causing the transmission frame 15 and the mounting box 3 to move along the upper surface of the treatment tank 1. The two mounting shafts 2 at the bottom of the mounting box 3 achieve synchronous reverse rotation through meshing gears. The stirring blades 16 on the mounting shafts 2 horizontally stir and mix the sewage and flocculant in the upper part of the treatment tank 1. The bottom spiral guide blades 21 rotate with the mounting shafts 2, guiding the liquid deposited at the bottom of the treatment tank 1 upward. In conjunction with the overall movement of the mounting box 3, the materials at different depths and different horizontal positions in the treatment tank 1 are stirred in all directions.

[0046] By combining the stirring blades 16 and the spiral guide blades 21, and by moving the mounting box 3, the flocculant can be distributed more evenly in the treatment tank 1, avoiding uneven local concentrations of the flocculant. At the same time, it enhances the contact and collision between fine particles, colloidal impurities, and flocculant in the wastewater, improving the floc formation effect. The bottom-up stirring can effectively prevent suspended solids from settling and caking at the bottom of the tank, significantly improving the sufficiency and uniformity of the flocculation reaction, thereby improving the treatment efficiency and solid-liquid separation effect of water conservancy construction wastewater.

[0047] The material guiding mechanism includes a slag discharge cylinder 5, a conveying auger 27, and a separation plate 18. The separation plate 18 is fixedly installed on the outer wall of the slag discharge cylinder 5. The separation plate 18 is a common filter plate. The bottom of the slag discharge cylinder 5 is below the liquid surface in the inner cavity of the treatment tank 1, and the other end is above the liquid surface. The two mounting shafts 2 rotate synchronously to control the liquid to move in the same direction (i.e., towards the bottom of the slag discharge cylinder 5).

[0048] The slag discharge cylinder 5 is inclinedly set on the side wall of the mounting box 3. The conveying auger 27 is rotatably installed on the inner wall of the slag discharge cylinder 5. The axis of the conveying auger 27 coincides with the axis of the slag discharge cylinder 5. The axial end of the slag discharge cylinder 5 is fixedly installed with a guide motor 6. The output shaft of the guide motor 6 is fixedly connected to the axial end of the conveying auger 27. The rotation of the conveying auger 27 is controlled by the guide motor 6.

[0049] When the conveying auger 27 rotates, it conveys the flocculated slag at the bottom of the slag discharge cylinder 5 upward along the inclined cylinder body. Under the obstruction and guiding effect of the separation plate 18, the slag and water are initially separated. The separated liquid flows back to the treatment tank 1 through the separation plate 18 to continue to participate in the flocculation reaction. Only the flocculated slag is continuously discharged, which improves the slag and water separation efficiency and avoids the liquid being discharged with the slag.

[0050] Simultaneous slag discharge during the flocculation process serves several purposes. First, it allows for the timely removal of flocculent precipitates already formed in treatment tank 1, preventing the flocs from remaining, accumulating, or breaking down in the tank for extended periods, thus ensuring the continuous and efficient flocculation reaction. Second, it prevents slag from depositing, hardening, and clogging the bottom of treatment tank 1 and the inlet of slag discharge cylinder 5. Simultaneous slag discharge also prevents an increase in turbidity in the water within treatment tank 1, reducing the interference of the formed flocs on subsequent flocculation reactions. Third, the separation plate 18 separates the slag from the water, allowing the return liquid to continue participating in the reaction, improving water resource utilization and reagent utilization, ensuring the continuity of the wastewater treatment process within treatment tank 1, and ultimately enhancing the overall wastewater treatment efficiency and the stability of effluent compliance of the device.

[0051] The two mounting shafts 2 rotate synchronously in the same direction, driving the stirring blades 16 and the guide blades 21 to push the sewage and flocculated flocs in the treatment tank 1 toward the bottom of the slag discharge cylinder 5 and collect them. This allows the flocculent sediment to continuously and centrally enter the feeding area of ​​the slag discharge cylinder 5. Combined with the conveying action of the conveying auger 27, the efficiency of flocs entering the slag discharge cylinder 5 is greatly improved, avoiding the flocs from dispersing and settling in the treatment tank 1. This achieves simultaneous stirring and mixing, directional slag collection, and continuous slag discharge, significantly improving the overall slag discharge effect and the continuity of sewage treatment.

[0052] The backflushing mechanism includes a backflushing hood 7 and an air storage cylinder 13. The backflushing hood 7 is fixedly installed on the outer wall of the treatment tank 1. Gas is supplied to the backflushing hood 7 through the air storage cylinder 13. As the separation plate 18 is used, the mesh of the separation plate 18 gradually becomes clogged. At this time, the separation plate 18 is controlled to move closer to the backflushing hood 7 until the backflushing hood 7 and the outer wall of the slag discharge cylinder 5 are in contact. At this time, the air storage cylinder 13 supplies gas towards the inside of the backflushing hood 7 to achieve backflushing cleaning of the separation plate 18. This can promptly clear the clogged mesh on the separation plate 18, ensure smooth slag-water separation and liquid return, and avoid the blockage of the separation plate 18 leading to poor slag discharge and obstructed liquid return, thereby maintaining the stable operation of the slag discharge cylinder 5 and the treatment tank 1.

[0053] In a preferred embodiment of the present invention, a slag discharge trough 11 is fixedly installed on the outer wall of the slag discharge cylinder 5. The inner wall of the slag discharge trough 11 is inclined. When the conveying auger 27 rotates, solid slag is discharged from one end of the slag discharge cylinder 5 and falls into the interior of the slag discharge trough 11.

[0054] A discharge trough 12 is fixedly installed on the upper end face of the treatment tank 1. The bottom of the slag discharge trough 11 slides and fits against the upper end face of the discharge trough 12. The solid slag inside the slag discharge trough 11 is discharged through the discharge trough 12 for collection and treatment.

[0055] An installation rod 20 is fixedly connected to the outer wall of the mounting shaft 2. The other end of the installation rod 20 is fixedly connected to the outer wall of the stirring blade 16. When the mounting shaft 2 rotates, the stirring blade 16 rotates synchronously through the installation rod 20.

[0056] The mounting shaft 2 drives the stirring blade 16 to rotate via the mounting rod 20, which pushes the flocculent precipitate formed in the treatment tank 1 to the bottom of the slag discharge cylinder 5. The slag is then conveyed upward by the conveying auger 27 and discharged from the end of the slag discharge cylinder 5 to the slag discharge trough 11. The slag discharge trough 11 slides and fits against the unloading trough 12 as the device moves, allowing the solid slag inside to pass smoothly through the unloading trough 12 and be discharged externally. This achieves continuous and automatic solid slag collection and discharge while the flocculation reaction is underway, realizing integrated continuous operation of flocculation and slag discharge.

[0057] An installation plate 8 is fixedly installed on the upper end face of the treatment tank 1. The interior of the installation plate 8 is provided with a cavity. A conveying pipe 28 is fixedly installed on the outer wall of the installation plate 8. The inner cavity of the installation plate 8 is connected to the inner cavity of the conveying pipe 28.

[0058] The other end of the conveying pipe 28 is fixedly connected to the outer wall of the recoil shield 7, and the inner cavity of the recoil shield 7 is connected to the inner cavity of the mounting plate 8 through the conveying pipe 28.

[0059] The height of the backflushing shroud 7 is flush with the height of the separation plate 18. The position of the sliding adjustment mounting box 3 can be controlled to bring the slag discharge cylinder 5 close to the backflushing shroud 7 so that it can wrap around the outer wall of the separation plate 18.

[0060] A connecting pipe 9 is fixedly installed on the outer wall of the treatment tank 1. The inner cavity of the connecting pipe 9 is connected to the inner cavity of the mounting plate 8. The gas storage cylinder 13 delivers gas to the inside of the backflush shroud 7 through the connecting pipe 9.

[0061] A sealing plate 19 is fixedly installed on the outer wall of the slag discharge cylinder 5. The outer wall of the sealing plate 19 is provided with rubber. The backflushing cover 7 presses against the rubber to achieve a sealed connection between the slag discharge cylinder 5 and the backflushing cover 7, thereby improving the efficiency of backflushing cleaning.

[0062] In a preferred embodiment of the present invention, the gas storage cylinder 13 is fixedly installed on the outer wall of the mounting box 3. The outer wall of the mounting box 3 is fixedly installed with an adapter pipe 22 for the connection pipe 9 to be inserted. When the mounting box 3 moves, the adapter pipe 22 moves synchronously, thereby realizing the insertion of the connection pipe 9 and the adapter pipe 22. The outer wall of the connection pipe 9 is fixedly installed with a sealing ring 29. After the connection pipe 9 and the adapter pipe 22 are inserted, the sealing ring 29 is used to seal the connection pipe 9 and the adapter pipe 22.

[0063] A support ring 30 is fixedly installed in the inner cavity of the adapter pipe 22. A tapered hole is opened in the inner wall of the support ring 30, and a tapered plug 33 is installed in the tapered hole. The tapered plug 33 is made of rubber, so as to realize one-way conduction in the inner cavity of the adapter pipe 22.

[0064] A connecting rod 32 is fixedly installed on the axial end of the conical plug 33. A hollow frame 31 is fixedly installed on the end of the connecting rod 32 away from the conical plug 33. The outer wall of the hollow frame 31 is fixedly connected to the outer wall of the support ring 30 through an elastic element. As the connecting tube 9 is inserted, the connecting tube 9 presses against the hollow frame 31, causing the conical plug 33 and the support ring 30 to separate. At this time, the conical hole is open, so as to deliver gas toward the inside of the transfer tube 22.

[0065] The sliding adjustment mounting box 3 brings the slag discharge cylinder 5 close to the backflushing hood 7. The sealing plate 19 and the backflushing hood 7 are pressed and sealed. At the same time, the connecting pipe 9 and the transfer pipe 22 are inserted and sealed by the sealing ring 29. The connecting pipe 9 presses against the hollow frame 31 to separate the conical plug 33 from the support ring 30, and the transfer pipe 22 is opened. The gas output from the gas storage cylinder 13 enters the backflushing hood 7 through the connecting pipe 9, the transfer pipe 22, the inner cavity of the mounting plate 8, and the conveying pipe 28 in sequence, and performs gas backflushing cleaning on the separation plate 18.

[0066] The inner wall of the mounting box 3 has a rotating drive shaft 24. The axial end of the drive shaft 24 is fixedly connected to the axial end of the mounting shaft 2. Rotating the drive shaft 24 drives the mounting shaft 2 to rotate.

[0067] A control motor 4 is fixedly installed on the upper surface of the mounting box 3. The control motor 4 is used to control the rotation of the transmission shaft 24. One of the transmission shafts 24 is connected to the control motor 4, thereby driving the two mounting shafts 2 to rotate through the control motor 4.

[0068] A guide tube 14 is fixedly installed on the outer wall of the mounting box 3. The outer wall of the guide tube 14 is provided with a unidirectional inlet pipe and an outlet pipe. The inlet pipe and the outlet pipe are provided with one-way valves with opposite conduction directions.

[0069] A control plug 26 is slidably installed on the inner wall of the guide tube 14. The output end of the guide tube 14 is connected to the inner cavity of the air storage cylinder 13. By reciprocating the sliding of the control plug 26, the guide tube 14 is controlled to draw external air into the inner cavity of the air storage cylinder 13. A pressure relief valve is provided on the outer wall of the air storage cylinder 13. The pressure relief valve is used to limit the maximum air pressure in the inner cavity of the air storage cylinder 13.

[0070] A guide rod 34 is fixedly installed on the bottom surface of the control plug 26. The guide rod 34 is slidably connected to the inner wall of the mounting box 3. By setting the guide rod 34, the sliding stability of the control plug 26 is improved, thereby preventing the control plug 26 from deflecting.

[0071] A control shaft 23 is fixedly installed on the axial end of the drive shaft 24. The control shaft 23 is a common reciprocating threaded shaft. A drive cylinder 25 is fixedly installed on the bottom surface of the control plug 26. The drive cylinder 25 is slidably sleeved on the outer wall of the control shaft 23 and connected to the control shaft 23 through a reciprocating thread fit. The drive shaft 24 drives the control shaft 23 to rotate, which in turn drives the control plug 26 to slide back and forth.

[0072] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0073] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0074] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for water conservancy construction, characterized in that: It includes a treatment tank (1), a moving mechanism, a mixing mechanism, a material guiding mechanism, and a backflushing mechanism; The moving mechanism is mounted on a housing (3) and a drive motor (10). The housing (3) is slidably mounted above the treatment tank (1), and the drive motor (10) controls the movement of the housing (3). The stirring mechanism includes a mounting shaft (2), stirring blades (16) and guide vanes (21). The mounting shaft (2) is rotatably mounted at the bottom of the mounting box (3). The stirring blades (16) and guide vanes (21) are both fixedly mounted on the radial outer wall of the mounting shaft (2). The guide vanes (21) are located at the bottom of the mounting shaft (2) and are arranged in a spiral shape. The material guiding mechanism includes a slag discharge cylinder (5), a material conveying auger (27), and a separation plate (18). The separation plate (18) is fixedly installed on the outer wall of the slag discharge cylinder (5). The slag discharge cylinder (5) is inclinedly arranged on the side wall of the mounting box (3). The material conveying auger (27) is rotatably installed on the inner wall of the slag discharge cylinder (5). The backflush mechanism includes a backflush shroud (7) and a gas storage cylinder (13). The backflush shroud (7) is fixedly installed on the outer wall of the treatment tank (1), and gas is delivered into the backflush shroud (7) through the gas storage cylinder (13).

2. The wastewater treatment device for water conservancy construction according to claim 1, characterized in that: The drive motor (10) is fixedly installed on the outer wall of the treatment tank (1). A control screw (17) is rotatably installed on the outer wall of the treatment tank (1). The output shaft of the drive motor (10) is fixedly connected to the axial end of the control screw (17). A transmission frame (15) is installed on the outer wall of the control screw (17) through threaded connection. The outer wall of the mounting box (3) is fixedly connected to the side wall of the transmission frame (15). The slag discharge cylinder (5) is fixedly installed with a material guide motor (6) at its axial end, and the output shaft of the material guide motor (6) is fixedly connected to the axial end of the material conveying auger (27).

3. The wastewater treatment device for water conservancy construction according to claim 2, characterized in that: The outer wall of the slag discharge cylinder (5) is fixedly installed with a slag discharge trough (11), and the inner wall of the slag discharge trough (11) is inclined. The upper end face of the treatment tank (1) is fixedly installed with a discharge trough (12), the bottom of the slag discharge trough (11) is slidably attached to the upper end face of the discharge trough (12), and an installation rod (20) is fixedly connected to the outer wall of the installation shaft (2), and the other end of the installation rod (20) is fixedly connected to the outer wall of the stirring blade (16).

4. The wastewater treatment device for water conservancy construction according to claim 3, characterized in that: An installation plate (8) is fixedly installed on the upper end face of the treatment tank (1). The interior of the installation plate (8) is provided with a cavity. A conveying pipe (28) is fixedly installed on the outer wall of the installation plate (8). The other end of the conveying pipe (28) is fixedly connected to the outer wall of the backflush shroud (7). The inner cavity of the backflush shroud (7) is connected to the inner cavity of the installation plate (8) through the conveying pipe (28). The height of the backwash shroud (7) is flush with the height of the separation plate (18). A connecting pipe (9) is fixedly installed on the outer wall of the treatment tank (1). The inner cavity of the connecting pipe (9) is connected to the inner cavity of the mounting plate (8). A sealing plate (19) is fixedly installed on the outer wall of the slag discharge cylinder (5).

5. A wastewater treatment device for water conservancy construction according to claim 4, characterized in that: The gas storage cylinder (13) is fixedly installed on the outer wall of the mounting box (3). The outer wall of the mounting box (3) is fixedly installed with an adapter pipe (22) for the connection pipe (9) to be inserted. The outer wall of the connection pipe (9) is fixedly installed with a sealing ring (29). The inner cavity of the adapter pipe (22) is fixedly installed with a support ring (30), and the inner wall of the support ring (30) is provided with a tapered hole, and a tapered plug (33) is provided in the tapered hole. A connecting rod (32) is fixedly installed at the axial end of the conical plug (33), and a hollow frame (31) is fixedly installed at the end of the connecting rod (32) away from the conical plug (33). The outer wall of the hollow frame (31) is fixedly connected to the outer wall of the support ring (30) through an elastic element.

6. A wastewater treatment device for water conservancy construction according to claim 5, characterized in that: The inner wall of the mounting box (3) is rotatably equipped with a drive shaft (24), the axial end of the drive shaft (24) is fixedly connected to the axial end of the mounting shaft (2), and a control motor (4) is fixedly installed on the upper end face of the mounting box (3). The control motor (4) is used to control the rotation of the drive shaft (24). The outer wall of the mounting box (3) is fixedly installed with a guide tube (14). The outer wall of the guide tube (14) is provided with a unidirectional inlet pipe and an outlet pipe. The inner wall of the guide tube (14) is slidably installed with a control plug (26). The outlet end of the guide tube (14) is connected to the inner cavity of the gas storage tank (13). The outer wall of the gas storage tank (13) is provided with a pressure relief valve. A guide rod (34) is fixedly installed on the bottom surface of the control plug (26), and the guide rod (34) is slidably connected to the inner wall of the mounting box (3); A control shaft (23) is fixedly installed at the axial end of the drive shaft (24), and a drive cylinder (25) is fixedly installed on the bottom surface of the control plug (26). The drive cylinder (25) is slidably sleeved on the outer wall of the control shaft (23) and connected to the control shaft (23) through a reciprocating thread fit.

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