Auxiliary sludge removal device for primary sedimentation tank

Abstract

This utility model discloses an auxiliary sludge discharge device for primary sedimentation tanks, including an auxiliary sludge discharge pipe and an adjustment mechanism. The auxiliary sludge discharge pipe includes a supporting sludge discharge pipe, an X-axis rotating sludge discharge pipe, and a Y-axis rotating sludge discharge pipe connected sequentially from the output end to the input end. The output end of the supporting sludge discharge pipe is connected to a sludge discharge pump. The adjustment mechanism includes a Y-axis rotating drive device, an X-axis rotating drive device, and a connecting frame installed on the X-axis rotating sludge discharge pipe. When the sludge discharge volume is large, this utility model can effectively assist the fixed sludge discharge device, significantly improve the overall sludge discharge efficiency, and ensure that the sludge at the bottom of the tank is removed more evenly, avoiding the problem of local sludge accumulation or cleaning dead corners. When the fixed sludge discharge device is blocked, this solution can quickly and accurately position the Y-axis rotating sludge discharge pipe directly above the blockage point, and apply a reverse suction force through the sludge discharge pump to unclog and clean the fixed sludge discharge device.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an auxiliary sludge removal device for primary sedimentation tanks. Background Technology

[0002] In wastewater treatment processes, sludge removal is a crucial step in ensuring stable system operation and achieving effluent quality standards. When using mainstream treatment processes such as activated sludge and biofilm processes, a large amount of excess sludge is continuously generated, primarily composed of microbial metabolic products, inorganic particles, and organic impurities. Timely sludge removal effectively prevents excessive sludge accumulation in the reaction tank, maintains the balance of the biological system, and ensures treatment efficiency.

[0003] Taking primary sedimentation tanks as an example, their sludge removal operation not only removes settling suspended solids (SS), significantly reducing the load on subsequent biological treatment units (such as secondary sedimentation tanks), but also avoids the generation of scum or malodorous gases caused by anaerobic fermentation of sludge. Currently, primary sedimentation tanks mostly rely on gravity sedimentation to achieve solid-liquid separation, and usually have fixed sludge removal devices installed at the bottom of the tank for suction sludge removal. However, this method has obvious limitations: sludge often contains large particulate impurities such as fibers and hair, which easily cause blockage of sludge removal pipes, requiring frequent shutdowns for cleaning. This not only affects continuous and stable operation but also increases manual maintenance costs and operational risks. In addition, primary sedimentation sludge is usually characterized by a large total amount and high concentration. Fixed sludge removal devices, due to their limited coverage and suction capacity, cannot achieve efficient and rapid sludge removal, easily leading to excessively long sludge retention time and putrefaction, thus affecting the overall water treatment effect. Utility Model Content

[0004] The main purpose of this invention is to provide an auxiliary sludge removal device for primary sedimentation tanks, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] Auxiliary sludge removal device for primary sedimentation tank, including auxiliary sludge removal pipe and adjustment mechanism;

[0007] The auxiliary sludge discharge pipeline includes a support sludge discharge pipeline, an X-axis rotating sludge discharge pipeline, and a Y-axis rotating sludge discharge pipeline connected sequentially from the output end to the input end. The output end of the support sludge discharge pipeline is connected to a sludge discharge pump.

[0008] The adjustment mechanism includes a Y-axis rotation drive device, an X-axis rotation drive device, and a connecting frame installed on the X-axis rotation sludge discharge pipe;

[0009] One end of the Y-axis rotation drive device is hinged to the connecting frame, and the other end of the Y-axis rotation drive device is hinged to the Y-axis rotation sludge discharge pipe. The Y-axis rotation drive device enables the Y-axis rotation sludge discharge pipe to rotate relative to the X-axis rotation sludge discharge pipe around its Y-axis.

[0010] One end of the X-axis rotation drive device is hinged to the primary sedimentation tank, and the other end of the X-axis rotation drive device is hinged to the connecting frame. The X-axis rotation drive device enables the X-axis rotating sludge discharge pipe to rotate around its X-axis relative to the sludge discharge pipe.

[0011] Furthermore, the connecting frame is provided with a first hinge seat on the Y-axis, the Y-axis rotating sludge discharge pipe is provided with a second hinge seat on the Y-axis, and the two ends of the Y-axis rotating drive device are respectively connected to the first hinge seat on the Y-axis and the second hinge seat on the Y-axis.

[0012] Furthermore, the connecting frame is provided with a first hinge seat for the X-axis, the primary sedimentation tank is provided with a second hinge seat for the X-axis, and the two ends of the X-axis rotation drive device are respectively connected to the first hinge seat for the X-axis and the second hinge seat for the X-axis.

[0013] Furthermore, the X-axis rotating sludge discharge pipe is L-shaped;

[0014] The horizontal section of the X-axis rotating sludge discharge pipe is connected to the supporting sludge discharge pipe, and this horizontal section is in the X-axis direction of the supporting sludge discharge pipe;

[0015] The vertical section of the X-axis rotating sludge discharge pipe is connected to the Y-axis rotating sludge discharge pipe, and this vertical section is in the Y-axis direction of the X-axis rotating sludge discharge pipe.

[0016] Furthermore, a shearing mechanism is provided at the input end of the Y-axis rotating sludge discharge pipe;

[0017] The shearing mechanism includes a top pipe, a shearing housing, and a bottom pipe connected in sequence, and a filter screen is installed inside the shearing housing between the top pipe and the bottom pipe;

[0018] The top end of the top pipe is connected to the end of the Y-axis rotating sludge discharge pipe;

[0019] The top end of the bottom pipe is rotatably connected to a bottom rotating ring, and the inner wall of the bottom rotating ring is provided with a bottom shearing blade located below the filter screen;

[0020] It also includes a shear drive assembly for driving the rotation of the bottom rotating ring.

[0021] Furthermore, a top rotating ring is rotatably connected to the bottom end of the top pipe, and a top shearing blade located above the filter screen is provided on the inner wall of the top rotating ring.

[0022] The shearing drive assembly can drive the top rotating ring to rotate.

[0023] Furthermore, the top shear blade and the bottom shear blade are arranged in the same direction, and the two are misaligned in the circumferential direction;

[0024] The shearing drive assembly drives the bottom rotating ring and the top rotating ring to rotate in the same direction;

[0025] The shearing drive assembly includes a shearing drive device fixed to the side wall of the top pipe, and a top co-directional drive gear and a bottom co-directional drive gear located below the top co-directional drive gear are sleeved on the output shaft of the shearing drive device.

[0026] The shearing drive assembly further includes a top driven gear that is sleeved on the top rotating ring and meshes with the top driving gear, and a bottom driven gear that is sleeved on the bottom rotating ring and meshes with the bottom driving gear.

[0027] Furthermore, the top shear blade and the bottom shear blade are arranged in opposite directions;

[0028] The shearing drive assembly drives the bottom rotating ring and the top rotating ring to rotate in opposite directions;

[0029] The shear drive assembly includes a shear reverse drive device fixed to the side wall of the top pipe. The output shaft of the shear reverse drive device is sleeved with a top reverse transmission gear and a top reverse drive gear located below the top reverse transmission gear.

[0030] The bottom end of the inner wall of the shear shell is rotatably provided with a bottom drive shaft, and a bottom reverse drive gear and a bottom reverse transmission gear located below the bottom reverse drive gear are sleeved on the bottom drive shaft.

[0031] The inner wall side of the shear shell is also rotatably provided with a central drive shaft, and a central reverse drive gear is sleeved on the central drive shaft. The top and bottom ends of the central reverse drive gear mesh with the top reverse drive gear and the bottom reverse drive gear, respectively.

[0032] The shear drive assembly further includes a top reverse driven gear sleeved on the top rotating ring and meshing with the top reverse driving gear, and a bottom reverse driven gear sleeved on the bottom rotating ring and meshing with the bottom reverse driving gear.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. Through the coordinated action of the Y-axis rotation drive device and the X-axis rotation drive device, the angle and position of the Y-axis rotating sludge discharge pipe in three-dimensional space can be precisely adjusted, thereby dynamically expanding its adsorption and radiation range. This design allows the sludge discharge operation to no longer be limited to a fixed point, and can actively cover a larger area at the bottom of the primary sedimentation tank. Especially when the sludge discharge volume is large, it can effectively assist the fixed sludge discharge device, significantly improve the overall sludge discharge efficiency, and ensure that the sludge at the bottom of the tank is removed more evenly, avoiding the problems of local sludge accumulation or cleaning dead corners.

[0035] 2. When the fixed sludge discharge device becomes clogged, this solution can quickly and precisely position the Y-axis rotating sludge discharge pipe directly above the blockage point. The sludge pump then applies a reverse suction force to unclog and clean the fixed sludge discharge device. This function greatly reduces reliance on manual cleaning, minimizes downtime due to blockages, and improves the system's continuous operational reliability and automation.

[0036] 3. The shearing mechanism integrated at the front end of the sludge discharge pipe, through the high-speed rotation of the top and bottom shear blades in the same or opposite directions, can effectively shear, tear, and mix sludge containing large particles such as fibers and hair. Combined with the filter screen, it pre-crushes solid materials that are prone to clogging, ensuring smooth subsequent pipeline transportation, improving the processing capacity of sludge with high impurity content, and expanding the application scenarios of this device. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the auxiliary sludge removal device for the primary sedimentation tank of this utility model;

[0038] Figure 2 This is a three-dimensional structural diagram of the adjusting mechanism in the auxiliary sludge removal device for the primary sedimentation tank of this utility model;

[0039] Figure 3 This is a schematic diagram of the adjusting mechanism in the auxiliary sludge removal device for the primary sedimentation tank of this utility model;

[0040] Figure 4 This is an exploded structural diagram of the shearing mechanism in the auxiliary sludge removal device for the primary sedimentation tank of this utility model.

[0041] Figures 5-6 This is a cross-sectional schematic diagram of the shearing mechanism in the auxiliary sludge removal device for the primary sedimentation tank of this utility model;

[0042] Figures 7-8 This is a schematic diagram of the bottom shear blade and top shear blade in the auxiliary sludge removal device for the primary sedimentation tank of this utility model.

[0043] In the diagram: 1. Primary sedimentation tank; 2. Supporting sludge discharge pipe; 3. X-axis rotating sludge discharge pipe; 4. Y-axis rotating sludge discharge pipe; 5. Adjusting mechanism; 51. Connecting frame; 52. Y-axis rotation drive device; 53. X-axis rotation drive device; 54. Y-axis first hinge seat; 55. Y-axis second hinge seat; 56. X-axis first hinge seat; 57. X-axis second hinge seat; 6. Sludge discharge pump; 7. Shearing mechanism; 71. Top pipe; 72. Bottom rotating ring; 73. Bottom shear blade; 74. Filter screen; 75. Shearing shell; 76. Bottom pipe; 77. Top... 78. Top rotating ring; 79. Top shearing blade; 710. Bottom co-directional drive gear; 711. Top co-directional driven gear; 712. Bottom co-directional driven gear; 713. Shearing reverse drive device; 714. Top reverse transmission gear; 715. Top reverse drive gear; 716. Middle reverse transmission gear; 717. Middle transmission shaft; 718. Bottom transmission shaft; 719. Bottom reverse drive gear; 720. Bottom reverse transmission gear; 721. Top reverse driven gear; 722. Bottom reverse driven gear; 723. Shearing co-directional drive device. Detailed Implementation

[0044] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0045] like Figure 1-8 As shown, the auxiliary sludge removal device for the primary sedimentation tank includes an auxiliary sludge removal pipe and an adjustment mechanism 5.

[0046] The auxiliary sludge discharge pipeline includes a supporting sludge discharge pipeline 2, an X-axis rotating sludge discharge pipeline 3, and a Y-axis rotating sludge discharge pipeline 4 connected sequentially from the output end to the input end. The output end of the supporting sludge discharge pipeline 2 is connected to a sludge discharge pump 6.

[0047] The adjustment mechanism 5 includes a Y-axis rotation drive device 52, an X-axis rotation drive device 53, and a connecting frame 51 installed on the X-axis rotation mud discharge pipe 3;

[0048] One end of the Y-axis rotation drive device 52 is hinged to the connecting frame 51, and the other end of the Y-axis rotation drive device 52 is hinged to the Y-axis rotation sludge discharge pipe 4. The Y-axis rotation drive device 52 enables the Y-axis rotation sludge discharge pipe 4 to rotate relative to the X-axis rotation sludge discharge pipe 3 around its Y-axis.

[0049] One end of the X-axis rotation drive device 53 is hinged to the primary sedimentation tank 1, and the other end of the X-axis rotation drive device 53 is hinged to the connecting frame 51. The X-axis rotation drive device 53 enables the X-axis rotating sludge discharge pipe 3 to support the sludge discharge pipe 2 to rotate around its X-axis.

[0050] In application, the output end of the sludge discharge pipe 2 is connected to a sludge collector via a sludge discharge pump 6 for subsequent sludge treatment operations.

[0051] Preferably, the X-axis rotating sludge discharge pipe 3 is L-shaped;

[0052] The horizontal section of the X-axis rotating sludge discharge pipe 3 is connected to the supporting sludge discharge pipe 2, and this horizontal section is in the X-axis direction of the supporting sludge discharge pipe 2;

[0053] The vertical section of the X-axis rotating sludge discharge pipe 3 is connected to the Y-axis rotating sludge discharge pipe 4, and the vertical section is in the Y-axis direction of the X-axis rotating sludge discharge pipe 3.

[0054] In this embodiment, both the Y-axis rotation drive device 52 and the X-axis rotation drive device 53 can be electric push rods or cylinders. One end of the Y-axis rotation drive device 52 is hinged to the connecting frame 51, and this end can be the cylinder end (fixed end) or the telescopic end (movable end); similarly, one end of the X-axis rotation drive device 53 is hinged to the primary sedimentation tank 1, and this end can be the cylinder end (fixed end) or the telescopic end (movable end).

[0055] In practice, the bottom of the primary sedimentation tank 1 is still equipped with a fixed sludge discharge device, while in this embodiment it serves as an auxiliary sludge discharge device.

[0056] When the amount of sludge discharged from the initial sedimentation tank 1 is large, the sludge discharge pump 6 is started. Under the adsorption effect of the sludge discharge pump 6, the Y-axis rotating sludge discharge pipe 4 can assist in adsorbing sludge from above the fixed sludge discharge device. During the adsorption process, the angle position of the Y-axis rotating sludge discharge pipe 4 on the Y-axis (based on the X-axis rotating sludge discharge pipe 3) can be adjusted by the Y-axis rotating drive device 52, and the angle position of the Y-axis rotating sludge discharge pipe 4 on the X-axis (based on the supporting sludge discharge pipe 2) can be adjusted by the X-axis rotating drive device 53. In this way, the adsorption radiation range of the Y-axis rotating sludge discharge pipe 4 can be expanded to achieve the effect of uniform sewage discharge.

[0057] When the fixed sludge discharge device is blocked, the position of the Y-axis rotating sludge discharge pipe 4 is adjusted by the Y-axis rotating drive device 52 and the X-axis rotating drive device 53 so that it is directly above the fixed sludge discharge device. At the same time, the sludge discharge pump 6 is started to perform a reverse adsorption effect on the fixed sludge discharge device to achieve the effect of clearing the blockage.

[0058] To enable the Y-axis rotation drive device 52 to drive the rotation of the Y-axis rotating sludge discharge pipe 4 on the Y-axis, preferably, the connecting frame 51 is provided with a Y-axis first hinge seat 54, the Y-axis rotating sludge discharge pipe 4 is provided with a Y-axis second hinge seat 55, and the two ends of the Y-axis rotation drive device 52 are respectively connected to the Y-axis first hinge seat 54 and the Y-axis second hinge seat 55.

[0059] To enable the Y-axis rotation drive device 52 to drive the X-axis rotation of the sludge discharge pipe 3 on the X-axis, preferably, the connecting frame 51 is provided with an X-axis first hinge seat 56, the primary sedimentation tank 1 is provided with an X-axis second hinge seat 57, and the two ends of the X-axis rotation drive device 53 are respectively connected to the X-axis first hinge seat 56 and the X-axis second hinge seat 57.

[0060] Preferably, a shearing mechanism 7 is provided at the input end of the Y-axis rotating sludge discharge pipe 4;

[0061] The shearing mechanism 7 includes a top pipe 71, a shearing housing 75 and a bottom pipe 76 connected in sequence. A filter screen 74 is provided inside the shearing housing 75 between the top pipe 71 and the bottom pipe 76.

[0062] The top end of the top pipe 71 is connected to the end of the Y-axis rotating sludge discharge pipe 4;

[0063] The top end of the bottom pipe 76 is rotatably connected to a bottom rotating ring 72, and the inner wall of the bottom rotating ring 72 is provided with a bottom shearing blade 73 located below the filter screen 74;

[0064] It also includes a shear drive assembly for driving the bottom rotating ring 72 to rotate.

[0065] In this embodiment, when there are many sludge impurities in the initial sedimentation tank 1, or when the fixed sludge discharge device is severely clogged, the shearing mechanism 7 can be activated to cut and stir the impurities to achieve a better sludge discharge effect.

[0066] In application, activating the shear drive assembly will cause the bottom rotating ring 72 to rotate, and the bottom shear blade 73 will cut and agitate the impurities in the sludge. The cut sludge can then pass through the filter screen 74 into the top pipe 71, and then be discharged through the Y-axis rotating sludge discharge pipe 4, the X-axis rotating sludge discharge pipe 3, and the supporting sludge discharge pipe 2. The filter screen 74 is designed to prevent clogging in the auxiliary sludge discharge device.

[0067] Preferably, the bottom end of the top pipe 71 is rotatably connected to a top rotating ring 78, and the inner wall of the top rotating ring 78 is provided with a top shearing blade 79 located above the filter screen 74;

[0068] The shearing drive assembly can also drive the top rotating ring 78 to rotate.

[0069] In this embodiment, a top shearing blade 79 is provided above the filter screen 74 to assist the bottom shearing blade 73 in further cutting and stirring the sludge, thereby accelerating the efficiency of sludge discharge.

[0070] Preferably, the top shearing blade 79 and the bottom shearing blade 73 are arranged in the same direction, and the two are misaligned in the circumferential direction;

[0071] The shearing drive assembly drives the bottom rotating ring 72 and the top rotating ring 78 to rotate in the same direction;

[0072] The shearing drive assembly includes a shearing drive device 723 fixed to the side wall of the top pipe 71. A top drive gear 77 and a bottom drive gear 710 located below the top drive gear 77 are sleeved on the output shaft of the shearing drive device 723.

[0073] The shear drive assembly further includes a top driven gear 711 sleeved on the top rotating ring 78 and meshing with the top driving gear 77, and a bottom driven gear 712 sleeved on the bottom rotating ring 72 and meshing with the bottom driving gear 710.

[0074] In this embodiment, the shearing drive device 723 can be a motor. The blades of the top shearing blade 79 and the bottom shearing blade 73 are arranged in the same direction, and they are misaligned in the circumferential direction, such as... Figure 7 As shown.

[0075] In application, the shearing drive device 723 is activated, causing the top driving gear 77 and the bottom driving gear 710 to rotate synchronously. Through the meshing of the top driving gear 77 with the top driven gear 711 and the bottom driving gear 710 with the bottom driven gear 712, the bottom rotating ring 72 and the top rotating ring 78 are driven to rotate in the same direction and synchronously, thereby driving the top shear blade 79 and the bottom shear blade 73 to rotate in the same direction and synchronously. This allows for double the shearing and mixing of the sludge. All gears are located within the shear housing 75.

[0076] When only a bottom rotating ring 72 and a bottom shearing blade 73 are provided, it is only necessary to drive the bottom rotating ring 72 to rotate. In this way, it is only necessary to provide a shearing co-directional drive device 723, a bottom co-directional drive gear 710 and a bottom co-directional driven gear 712. In this way, the bottom shearing blade 73 can be driven to rotate to perform the corresponding shearing and stirring operations.

[0077] Preferably, the shearing drive assembly drives the bottom rotating ring 72 and the top rotating ring 78 to rotate in opposite directions;

[0078] The shear drive assembly includes a shear reverse drive device 713 fixed to the side wall of the top pipe 71. The output shaft of the shear reverse drive device 713 is sleeved with a top reverse transmission gear 714 and a top reverse drive gear 715 located below the top reverse transmission gear 714.

[0079] The bottom end of the inner wall of the shear housing 75 is rotatably provided with a bottom drive shaft 718, and a bottom reverse drive gear 719 and a bottom reverse drive gear 720 located below the bottom reverse drive gear 719 are sleeved on the bottom drive shaft 718.

[0080] The inner wall side of the shear shell 75 is also rotatably provided with a central drive shaft 717, and a central reverse drive gear 716 is sleeved on the central drive shaft 717. The top and bottom ends of the central reverse drive gear 716 mesh with the top reverse drive gear 714 and the bottom reverse drive gear 720, respectively.

[0081] The shear drive assembly further includes a top reverse driven gear 721 sleeved on the top rotating ring 78 and meshing with the top reverse driving gear 715, and a bottom reverse driven gear 722 sleeved on the bottom rotating ring 72 and meshing with the bottom reverse driving gear 719.

[0082] In this embodiment, the shearing reverse drive device 713 can be a motor. The blades of the top shearing blade 79 and the bottom shearing blade 73 are arranged in opposite directions, such as... Figure 8 As shown.

[0083] In application, the shearing reverse drive device 713 is activated, driving the top reverse transmission gear 714 and the top reverse drive gear 715 to rotate. On one hand, the meshing of the top reverse drive gear 715 and the top reverse driven gear 721 drives the top rotating ring 78 to rotate, thereby driving the top shear blade 79 to rotate. On the other hand, the meshing of the top reverse transmission gear 714, the middle reverse transmission gear 716, and the bottom reverse transmission gear 720 transmits the aforementioned kinetic energy to the bottom drive shaft 718, causing it to drive the bottom reverse drive gear 719 to rotate in the opposite direction to the top reverse drive gear 715. Then, through the meshing of the bottom reverse drive gear 719 and the bottom reverse driven gear 722, the bottom rotating ring 72 rotates in the opposite direction to the top rotating ring 78, thereby driving the bottom shear blade 73 to rotate in the opposite direction to the top shear blade 79. In this way, the sludge can be subjected to double the shearing and mixing operations. Among them, the top reverse transmission gear 714, the middle reverse transmission gear 716, and the bottom reverse transmission gear 720 can all be bevel gears. Each gear is located within the shear housing 75.

[0084] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0085] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary sludge discharge device for a primary sedimentation tank, characterized in that Includes auxiliary sludge discharge pipes and regulating mechanisms (5); The auxiliary sludge discharge pipeline includes a supporting sludge discharge pipeline (2), an X-axis rotating sludge discharge pipeline (3), and a Y-axis rotating sludge discharge pipeline (4) connected sequentially from the output end to the input end. The output end of the supporting sludge discharge pipeline (2) is connected to a sludge discharge pump (6). The adjustment mechanism (5) includes a Y-axis rotation drive device (52), an X-axis rotation drive device (53), and a connecting frame (51) installed on the X-axis rotation sludge discharge pipe (3); One end of the Y-axis rotation drive device (52) is hinged to the connecting frame (51), and the other end of the Y-axis rotation drive device (52) is hinged to the Y-axis rotation sludge discharge pipe (4). The Y-axis rotation drive device (52) enables the Y-axis rotation sludge discharge pipe (4) to rotate relative to the X-axis rotation sludge discharge pipe (3) around its Y-axis. One end of the X-axis rotation drive device (53) is hinged to the primary sedimentation tank (1), and the other end of the X-axis rotation drive device (53) is hinged to the connecting frame (51). The X-axis rotation drive device (53) enables the X-axis rotation sludge discharge pipe (3) to rotate relative to the sludge discharge pipe (2) around its X-axis.

2. The auxiliary sludge discharge device for a primary sedimentation tank according to claim 1, characterized by: The connecting frame (51) is provided with a first hinge seat (54) on the Y-axis, and the Y-axis rotating sludge discharge pipe (4) is provided with a second hinge seat (55) on the Y-axis. The two ends of the Y-axis rotating drive device (52) are respectively connected to the first hinge seat (54) and the second hinge seat (55) on the Y-axis.

3. The auxiliary sludge removal device for primary sedimentation tank according to claim 2, characterized in that: The connecting frame (51) is provided with an X-axis first hinge seat (56), the primary sedimentation tank (1) is provided with an X-axis second hinge seat (57), and the two ends of the X-axis rotation drive device (53) are respectively connected to the X-axis first hinge seat (56) and the X-axis second hinge seat (57).

4. The auxiliary sludge removal device for primary sedimentation tank according to claim 1, characterized in that: The X-axis rotating sludge discharge pipe (3) is L-shaped; The horizontal section of the X-axis rotating sludge discharge pipe (3) is connected to the supporting sludge discharge pipe (2), and the horizontal section is in the X-axis direction of the supporting sludge discharge pipe (2); The vertical section of the X-axis rotating sludge discharge pipe (3) is connected to the Y-axis rotating sludge discharge pipe (4), and the vertical section is in the Y-axis direction of the X-axis rotating sludge discharge pipe (3).

5. The auxiliary sludge removal device for a primary sedimentation tank according to any one of claims 1-4, characterized in that: The input end of the Y-axis rotating sludge discharge pipe (4) is equipped with a shearing mechanism (7); The shearing mechanism (7) includes a top pipe (71), a shearing shell (75) and a bottom pipe (76) connected in sequence. A filter screen (74) is provided inside the shearing shell (75) between the top pipe (71) and the bottom pipe (76). The top end of the top pipe (71) is connected to the end of the Y-axis rotating sludge discharge pipe (4); The bottom pipe (76) is rotatably connected to a bottom rotating ring (72), and the inner wall of the bottom rotating ring (72) is provided with a bottom shearing blade (73) located below the filter screen (74); It also includes a shear drive assembly for driving the rotation of the bottom rotating ring (72).

6. The auxiliary sludge removal device for primary sedimentation tank according to claim 5, characterized in that: The bottom end of the top pipe (71) is rotatably connected to a top rotating ring (78), and the inner wall of the top rotating ring (78) is provided with a top shearing blade (79) located above the filter screen (74); The shear drive assembly can drive the top rotating ring (78) to rotate.

7. The auxiliary sludge removal device for primary sedimentation tank according to claim 6, characterized in that: The top shearing blade (79) and the bottom shearing blade (73) are arranged in the same direction, and the two are misaligned in the circumferential direction; The shear drive assembly drives the bottom rotating ring (72) and the top rotating ring (78) to rotate in the same direction; The shear drive assembly includes a shear drive device (723) fixed to the side wall of the top pipe (71). The output shaft of the shear drive device (723) is fitted with a top drive gear (77) and a bottom drive gear (710) located below the top drive gear (77). The shear drive assembly further includes a top driven gear (711) sleeved on the top rotating ring (78) and meshing with the top driving gear (77), and a bottom driven gear (712) sleeved on the bottom rotating ring (72) and meshing with the bottom driving gear (710).

8. The auxiliary sludge removal device for primary sedimentation tank according to claim 6, characterized in that: The top shear blade (79) and the bottom shear blade (73) are arranged in opposite directions; The shear drive assembly drives the bottom rotating ring (72) and the top rotating ring (78) to rotate in opposite directions; The shear drive assembly includes a shear reverse drive device (713) fixed to the side wall of the top pipe (71), and the output shaft of the shear reverse drive device (713) is sleeved with a top reverse transmission gear (714) and a top reverse drive gear (715) located below the top reverse transmission gear (714). The bottom end of the inner wall of the shear shell (75) is rotatably provided with a bottom drive shaft (718), and a bottom reverse drive gear (719) and a bottom reverse drive gear (720) located below the bottom reverse drive gear (719) are sleeved on the bottom drive shaft (718). The inner wall side of the shear shell (75) is also rotatably provided with a central drive shaft (717), and a central reverse drive gear (716) is sleeved on the central drive shaft (717). The top and bottom ends of the central reverse drive gear (716) mesh with the top reverse drive gear (714) and the bottom reverse drive gear (720) respectively. The shear drive assembly further includes a top reverse driven gear (721) sleeved on the top rotating ring (78) and meshing with the top reverse driving gear (715), and a bottom reverse driven gear (722) sleeved on the bottom rotating ring (72) and meshing with the bottom reverse driving gear (719).

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