Intercepting device for sewage treatment tank

Abstract

The invention discloses an intercepting device for a sewage treatment tank, and belongs to the technical field of sewage treatment. The device comprises a box body, a floating object treatment device for collecting and treating floating objects and a driving mechanism for driving the floating object treatment device to treat the floating objects in sewage, and the floating object treatment device comprises a collecting mechanism for collecting the floating objects and a treatment mechanism for discharging the floating objects out of the box body. And the collecting mechanism and the processing mechanism are synchronously controlled by a driving mechanism. The problem that in the prior art, an intercepting device is blocked during treatment is solved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically to an interception device for wastewater treatment ponds. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly entering the daily lives of ordinary people. According to the source of wastewater, wastewater treatment is generally divided into industrial wastewater treatment and domestic wastewater treatment.

[0003] In the prior art, for example, Chinese Patent Publication No. CN 119607642 A discloses an interception device for sewage treatment in a sewage treatment pond, relating to the field of sewage treatment technology. It includes a sewage channel for sewage flow and an interception grille for intercepting debris. It further includes: a mounting frame disposed inside the sewage channel; a fixing mechanism, one end connected to the mounting frame and the other end abutting against the sewage channel; an installation mechanism, one end connected to the mounting frame and the other end connected to the interception grille; a debris-removing mechanism connected to the mounting frame; and a conveying mechanism connected to the mounting frame. This invention places the mounting frame inside the sewage channel, the fixing mechanism fixes the mounting frame, the installation mechanism installs and fixes the interception grille, the interception grille intercepts debris and garbage in the sewage, the debris-removing mechanism removes the debris intercepted by the interception grille, and the conveying mechanism transports it out for further processing. This invention facilitates the assembly and disassembly of the interception grille.

[0004] However, most floating objects are made of materials such as plastic and wood fiber. When using auger conveyors, floating objects can easily clog the auger. For example, plastic bags and fibrous waste are particularly prone to causing blockages. Once a blockage occurs, cleaning it is very troublesome and seriously affects its normal use. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the purpose of this invention is to provide an interception device for wastewater treatment ponds that can solve the problem of blockage caused by existing interception devices during treatment.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an interception device for a sewage treatment pond, comprising:

[0007] Box;

[0008] A floating debris handling device for collecting and processing floating debris;

[0009] A drive mechanism is used to drive the floating debris treatment device to treat floating debris in sewage;

[0010] The floating debris handling device includes a collection mechanism for collecting floating debris and a handling mechanism for discharging floating debris from the tank.

[0011] The collection mechanism and the processing mechanism are both synchronously controlled by a drive mechanism.

[0012] Preferably, the collection mechanism includes:

[0013] The cleaning rack collects and intercepts floating debris;

[0014] Two movable frames are symmetrically arranged on both sides of the cleaning frame to drive the cleaning frame to move;

[0015] The cleaning rack includes a planar metal mesh I and a conical metal mesh II. Multiple metal meshes I are arranged, and multiple metal meshes I are arranged in an array on metal mesh II.

[0016] The box is also equipped with a guide mechanism to guide the movement of the cleaning rack.

[0017] Preferably, the processing mechanism includes:

[0018] The rotating shaft is rotatably mounted on the wall of the box.

[0019] Several material turning racks are arranged in a circular array on a rotating axis;

[0020] The material turning frame includes a first metal mesh plate fixedly connected to the rotating shaft and a second metal mesh plate hinged to the first metal mesh plate.

[0021] Preferably, the first metal mesh plate is further provided with a limiting plate for restricting the second metal mesh plate from rotating on the first metal mesh plate;

[0022] A torsion spring for resetting the metal mesh plate is also arranged at the hinge joint between the first metal mesh plate and the second metal mesh plate.

[0023] Preferably, the drive mechanism includes a servo motor and a lead screw arranged at the output end of the servo motor, the lead screw being threadedly connected to one of the moving frames.

[0024] Preferably, the guiding mechanism includes a guide rod arranged parallel to the lead screw, and another movable frame is sleeved on the guide rod.

[0025] Preferably, the drive mechanism is further provided with a transmission mechanism for driving the processing mechanism.

[0026] Preferably, the transmission mechanism includes:

[0027] The drive end is arranged on the moving frame and the lead screw;

[0028] The transmission end is arranged on the rotating shaft to drive the rotating shaft to rotate;

[0029] The driving end and the transmission end are connected in a transmission connection.

[0030] Preferably, the drive end includes a transmission rod that is inserted into the lead screw, a spring for resetting the transmission rod, and a retainer arranged at the end of the transmission rod. The transmission rod slides along the axial direction of the lead screw, and the lead screw limits the radial movement of the transmission rod.

[0031] Preferably, the transmission end includes:

[0032] Second clamp is engaged with first clamp;

[0033] Bevel gear one is located at the end of chuck two;

[0034] The second bevel gear is arranged coaxially with the rotating shaft and meshes with the first bevel gear.

[0035] The beneficial effects of this invention are as follows:

[0036] This invention employs a composite structure of "planar metal mesh I plus conical metal mesh II" for the collection mechanism. The array of metal mesh I uniformly intercepts floating objects of different particle sizes, avoiding local accumulation. The flow-guiding characteristics of the conical metal mesh II guide the floating objects to the processing end, shortening the residence time. The metal mesh has a smooth surface and high strength, making it less prone to being entangled by fibrous or soft floating objects, effectively reducing the risk of blockage by floating objects.

[0037] This invention employs a hinged structure of "metal mesh plate one + metal mesh plate two" for the material-turning frame of the processing mechanism. After the material-turning frame rotates to transport the floating objects to the outside of the box, it continues to rotate and re-enter the box. When it touches the box wall, it will automatically flip over, thus smoothly passing over the box wall and entering the box for subsequent removal of floating objects.

[0038] This invention synchronously controls the operation of the collection mechanism and the tipping frame by arranging a drive mechanism and a transmission mechanism. It uses a clamping cylinder one and a clamping cylinder two to drive the rotating shaft to rotate via bevel gear one and bevel gear two, resulting in low transmission loss. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of an interception device for a sewage treatment pond provided in an embodiment of the present invention.

[0041] Figure 2 This is a side view of an interception device for a sewage treatment pond provided in an embodiment of the present invention.

[0042] Figure 3 This is a schematic diagram of the structure of a cleaning frame for an interception device used in a sewage treatment pond, provided in an embodiment of the present invention.

[0043] Figure 4 This is a schematic diagram of the internal structure of an interception device for a sewage treatment pond, provided in an embodiment of the present invention.

[0044] Figure 5 for Figure 4 Enlarged view of point A in the image.

[0045] Figure 6 This is a schematic diagram of the transmission mechanism of an interception device for a sewage treatment pond, provided in an embodiment of the present invention.

[0046] Figure 7 This is a schematic diagram of the internal structure of the transmission mechanism of an interception device for a sewage treatment pond, provided in an embodiment of the present invention.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1-Box body, 2-Cleaning rack, 3-Moving rack, 4-Metal mesh one, 5-Metal mesh two, 6-Rotating shaft, 7-Metal mesh plate one, 8-Metal mesh plate two, 9-Servo motor, 10-Lead screw, 11-Guide rod, 12-Transmission rod, 13-Spring, 14-Clipper one, 15-Clipper two, 16-Bevel gear one, 17-Bevel gear two, 18-Limit plate. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In existing technologies, sewage treatment ponds often use auger structures to transport and intercept floating debris. However, lightweight floating materials such as plastics and fibers easily become entangled in the auger blades, causing equipment blockages. For example, plastic bags can become tangled and piled up after being caught in the auger, requiring the machine to be stopped and disassembled for cleaning, which severely impacts treatment efficiency. At one sewage treatment plant, the cumulative downtime for equipment maintenance due to blockages exceeded ten hours per month when using a traditional auger interception device, seriously affecting normal production.

[0051] To address these issues, researchers discovered that the core problem with the smooth transport of floating debris lies in the poor adaptability of the auger structure to flexible materials. Observing the movement trajectory of floating debris in wastewater revealed that it tends to concentrate on the surface and diffuses with the water flow. Based on this, a mechanical pushing mechanism was proposed to replace the auger conveyor. This mechanism uses movable interception components to collect the floating debris and discharge it directly, avoiding continuous contact between the material and the rotating components.

[0052] Example 1:

[0053] like Figures 1 to 7 As shown, the present invention proposes an interception device for a sewage treatment tank, including a tank 1, a floating object treatment device for collecting and treating floating objects, and a drive mechanism for driving the floating object treatment device to treat floating objects in sewage. The floating object treatment device includes a collection mechanism for collecting floating objects and a discharge mechanism for discharging floating objects from the tank 1. The collection mechanism and the treatment mechanism are both synchronously controlled by the drive mechanism.

[0054] The collection mechanism includes a cleaning frame 2 for collecting and intercepting floating objects, and two movable frames 3 symmetrically arranged on both sides of the cleaning frame 2 for moving the cleaning frame 2. The cleaning frame 2 includes a planar metal mesh 4 and a conical metal mesh 5. Multiple metal meshes 4 are arranged, and multiple metal meshes 4 are arranged in an array on the metal mesh 5. The housing 1 is also equipped with a guide mechanism for guiding the movement of the cleaning frame 2. Specifically, the guide mechanism includes a guide rod 11 arranged parallel to the lead screw 10, and another movable frame 3 is sleeved on the guide rod 11.

[0055] Specifically, the cleaning frame 2 moves horizontally within the tank 1 via two movable frames 3 on both sides. A flat metal mesh 4 intercepts floating debris on the surface of the sewage, while a conical metal mesh 5 prevents the debris from covering it, allowing water to pass through the gaps between the debris and the mesh 5, thus avoiding blockage. When the drive mechanism moves the movable frames 3, the symmetrically arranged frames move along the tank wall to maintain the balance of the cleaning frame 2, resisting a certain amount of water flow impact. The guide mechanism, via guide rods 11, limits its deviation, further enhancing its resistance to water flow impact, thereby converging floating debris to one side wall of the tank.

[0056] Example 2

[0057] Based on Embodiment 1, this application further proposes a processing mechanism including a rotating shaft 6 rotatably arranged on the wall of the housing 1 and a plurality of annular arrays of flipping racks on the rotating shaft 6;

[0058] The material turning frame includes a metal mesh plate 7 fixedly connected to the rotating shaft 6 and a metal mesh plate 8 hinged to the metal mesh plate 7.

[0059] A limiting plate 18 is also arranged on the metal mesh plate 7 to restrict the rotation of the metal mesh plate 8 on the metal mesh plate 7;

[0060] A torsion spring for resetting metal mesh plate 7 is also arranged at the hinge joint between metal mesh plate 7 and metal mesh plate 8.

[0061] The rotating shaft 6 is the core component that supports and drives the tilting frame. It can be made of hollow steel pipe or solid steel shaft, and its rotation is achieved through a bearing connection to the side wall of the housing 1. The tilting frame is the component used to move floating objects for cleaning. It can be made of metal mesh plates welded or bolted to the rotating shaft, with a circular array distribution to ensure uniform force distribution. Metal mesh plate 7 is a base plate rigidly connected to the rotating shaft 6. It can be made of perforated steel plate or woven metal mesh and forms the main support structure of the tilting frame. Metal mesh plate 2 is a movable plate hinged to metal mesh plate 7. It can be made of the same material and connected by a hinge, allowing for adaptive deformation upon contact with the housing wall.

[0062] When the rotating shaft 6 is driven to rotate by the driving mechanism, the material turning frame of the ring array rotates synchronously with the shaft. The metal mesh plate 7, as a fixed part, continuously pushes and lifts the floating object to move and rotate to transport it to the outside of the box, similar to a waterwheel. After the metal mesh plate 8 transports the floating object to the outside of the box 1, it continues to rotate. When it hits the wall of the box 1, it is resisted and deflects around the hinge point. When it breaks contact, it resets under the action of the torsion spring.

[0063] Through the above technical solution, this application effectively solves the problem of fibrous floating objects entangled and blocking moving parts, and significantly reduces the frequency of maintenance and cleaning.

[0064] Example 3

[0065] Based on Embodiment 2, this application further proposes a drive mechanism including a servo motor 9 and a lead screw 10 arranged at the output end of the servo motor 9, wherein the lead screw 10 is threadedly connected to one of the moving frames 3.

[0066] The output of servo motor 9 is coaxially connected to lead screw 10. When servo motor 9 starts, it drives lead screw 10 to rotate. The moving frame, which is threaded to lead screw 10, moves along the axis of lead screw 10, thereby driving the cleaning frame to perform horizontal reciprocating motion under the constraint of the guide mechanism. During this process, the rotational accuracy of lead screw is controlled by servo motor to ensure that the movement speed and stroke of the moving frame are adjustable, thus achieving stable collection of floating objects.

[0067] The drive mechanism is also equipped with a transmission mechanism for driving the processing mechanism.

[0068] The transmission mechanism includes a drive end arranged on the movable frame 3 and the lead screw 10, and a transmission end arranged on the rotating shaft 6 to drive the rotating shaft 6 to rotate. The drive end and the transmission end are connected in transmission.

[0069] The drive end includes a transmission rod 12 that is inserted into the lead screw 10, a spring 13 for resetting the transmission rod 12, and a retainer 14 arranged at the end of the transmission rod 12. The transmission rod 12 slides along the axial direction of the lead screw 10, and the lead screw 10 limits the radial movement of the transmission rod 12.

[0070] The transmission end includes a second caliper 15 that meshes with the first caliper 14, a first bevel gear 16 arranged at the end of the second caliper 15, and a second bevel gear 17 that is coaxially arranged with the rotating shaft 6 and meshes with the first bevel gear 16.

[0071] The transmission rod 12 is a rod-shaped component that is inserted into the lead screw 10 and transmits power through axial sliding. Specifically, it can be a metal rod with a rectangular cross section. It cooperates with the threaded groove of the lead screw to form a radial limit, thereby pushing the moving frame 3 to move when the lead screw 10 rotates. When it touches the transmission rod 12, it pushes it to move along the axial direction of the lead screw 10.

[0072] The spring refers to the elastic element used to reset the transmission rod 12, which can be implemented using a helical compression spring. The first clamp 14 refers to the meshing component located at the end of the transmission rod, which can be implemented using a sleeve structure with internal teeth, meshing with the external teeth of the second clamp 15 to transmit rotational power. The first bevel gear 16 and the first bevel gear 17 refer to a set of meshing bevel gears, which can be implemented using helical bevel gears with a 20° pressure angle.

[0073] When the lead screw 10 is driven to rotate, the moving frame 3 moves along the axial direction of the lead screw 10, thereby driving the moving frame 3 to move and collect floating objects on the water surface. When the objects are collected near one side wall of the housing 1, the transmission rod 12 is pushed to slide. At the same time as the transmission rod 12 slides, it is also driven to rotate by the rotation of the lead screw 10. Through the meshing of the first clamp 14 and the second clamp 15, the first bevel gear 16 is driven to rotate. The meshing of the first bevel gear 16 and the second bevel gear 17 transmits power to the rotating shaft 6, so that the tipping frame rotates synchronously with the rotating shaft 6. During this process, the spring 13 always applies a restoring force to the transmission rod, ensuring that the first clamp 14 and the second clamp 15 automatically disengage when the transmission rod 12 loses the push of the moving frame 3, thus forming an intermittent power transmission mechanism. This ensures that the tipping frame only starts working when the cleaning frame 2 pushes the floating objects to the tipping frame position, transporting the floating objects pushed by the cleaning frame 2 to the outside of the housing 1.

[0074] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An interception device for a sewage treatment pond, characterized in that, include: Box (1); A floating debris handling device for collecting and processing floating debris; A drive mechanism is used to drive the floating debris treatment device to treat floating debris in sewage; The floating object treatment device includes a collection mechanism for collecting floating objects and a treatment mechanism for discharging floating objects from the container (1); The collection mechanism and the processing mechanism are both synchronously controlled by a drive mechanism.

2. The interception device for a sewage treatment pond as described in claim 1, characterized in that, The collection mechanism includes: The cleaning rack (2) collects and intercepts floating debris; Two movable frames (3) are symmetrically arranged on both sides of the cleaning frame (2) to drive the cleaning frame (2) to move; The cleaning rack (2) includes a planar metal mesh (4) and a conical metal mesh (5). Multiple metal meshes (4) are arranged in an array on the metal mesh (5). The box (1) is also equipped with a guide mechanism for guiding the movement of the cleaning rack (2).

3. The interception device for a sewage treatment pond as described in claim 2, characterized in that, The processing mechanism includes: A rotating shaft (6) is rotatably arranged on the wall of the box body (1); Several material turning racks are arranged in a ring array on a rotating axis (6); The material turning frame includes a metal mesh plate 1 (7) fixedly connected to the rotating shaft (6) and a metal mesh plate 2 (8) hinged to the metal mesh plate 1 (7).

4. The interception device for a sewage treatment pond as described in claim 3, characterized in that, The metal mesh plate one (7) is also provided with a limiting plate (18) for restricting the rotation of the metal mesh plate two (8) on the metal mesh plate one (7); A torsion spring for resetting the metal mesh plate 1 (7) is also arranged at the hinge joint between the metal mesh plate 1 (7) and the metal mesh plate 2 (8).

5. The interception device for a sewage treatment pond as described in claim 2, characterized in that, The drive mechanism includes a servo motor (9) and a lead screw (10) arranged at the output end of the servo motor (9), the lead screw (10) being threadedly connected to one of the moving frames (3).

6. The interception device for a sewage treatment pond as described in claim 5, characterized in that, The guiding mechanism includes a guide rod (11) arranged parallel to the lead screw (10), and another movable frame (3) is sleeved on the guide rod (11).

7. The interception device for a sewage treatment pond as described in claim 6, characterized in that, The drive mechanism is also equipped with a transmission mechanism for driving the processing mechanism.

8. The interception device for a sewage treatment pond as described in claim 7, characterized in that, The transmission mechanism includes: The drive end is arranged on the movable frame (3) and the lead screw (10); The transmission end is arranged on the rotating shaft (6) to drive the rotating shaft (6) to rotate; The driving end and the transmission end are connected in a transmission connection.

9. The interception device for a sewage treatment pond as described in claim 8, characterized in that, The drive end includes a transmission rod (12) that is inserted into the lead screw (10), a spring (13) for resetting the transmission rod (12), and a retainer (14) arranged at the end of the transmission rod (12). The transmission rod (12) slides along the axial direction of the lead screw (10), and the lead screw (10) limits the movement of the transmission rod (12) in its radial direction.

10. The interception device for a sewage treatment pond as described in claim 9, characterized in that, The transmission end includes: The second clamp (15) is engaged with the first clamp (14); Bevel gear one (16) is arranged at the end of caliper two (15); The second bevel gear (17) is arranged coaxially with the rotating shaft (6) and meshes with the first bevel gear (16).

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