Sludge removal device for sewage treatment ponds

Abstract

This utility model relates to the field of wastewater treatment technology, specifically disclosing a sludge removal device for wastewater treatment tanks. A central support is fixed to the center of the tank bottom; a connecting seat is rotatably connected to the central support; the inner end of a horizontal cylinder is fixed to the side wall of the connecting seat, and a strip-shaped opening is provided at the bottom of the horizontal cylinder; a horizontal spiral blade shaft is located inside the horizontal cylinder; a traveling base moves circumferentially along the edge of the circular wastewater tank; a vertical cylinder is fixed to the traveling base; a vertical spiral blade shaft is located inside the vertical cylinder; a right-angle deflector is fixed to the outer end face of the horizontal cylinder, and two shafts are respectively fixedly connected to the shaft ends of the horizontal and vertical spiral blade shafts; a transmission motor is fixed to the top surface of the vertical cylinder, and its power output shaft is connected to the top end of the vertical spiral blade shaft; a material conveying shell connects the outer end of the horizontal cylinder cavity and the bottom end of the vertical cylinder cavity; the top end of the discharge cylinder is inclinedly sleeved onto the outer wall of the top end of the vertical cylinder. This device enables the wastewater treatment tank to achieve efficient sludge removal without interrupting production.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a device for removing bottom sludge from wastewater treatment ponds. Background Technology

[0002] In wastewater treatment, circular wastewater tanks are commonly used. Suspended solids in the wastewater gradually settle to the bottom of the tank, forming sludge. If this sludge is not cleaned over a long period, it will occupy the effective volume of the tank, reduce treatment efficiency, and may even cause anaerobic reactions, producing harmful gases and leading to deterioration of the effluent quality.

[0003] Traditional methods of removing bottom sediment have the following main problems: Manual dredging requires shutting down the sewage tank, poses significant operational risks, and is labor-intensive and inefficient.

[0004] Submersible sludge pumps: cannot efficiently pump out thick sludge.

[0005] Excavator bucket cleaning: limited cleaning range, low efficiency, and requires operation when the sewage tank is shut down.

[0006] Therefore, there is an urgent need for a highly efficient bottom sludge removal device to enable high-efficiency sludge removal operations on sewage treatment ponds without interrupting production. Utility Model Content

[0007] The purpose of this invention is to provide a bottom sludge removal device for sewage treatment ponds, which solves the problem that it is currently difficult to achieve efficient bottom sludge removal in sewage treatment ponds without interrupting production.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a sludge removal device for a sewage treatment tank, wherein a central support is fixed at the center of the bottom surface of a circular sewage tank; a connecting seat is rotatably connected to the central support; the inner end of a horizontal cylinder is vertically fixed to the side wall of the connecting seat and extends radially along the circular sewage tank; the bottom of the horizontal cylinder has a strip-shaped opening along its axial direction; a horizontal spiral blade shaft is rotatably installed in the inner cavity of the horizontal cylinder; a traveling base moves in a circular motion along the edge of the circular sewage tank; and a vertical cylinder is fixed near the top of the traveling base. The base extends vertically near the wall of the circular sewage tank; a vertical helical blade shaft is rotatably mounted inside the vertical cylinder; a right-angle deflector is fixed to the outer end face of the horizontal cylinder, and two shafts are respectively fixedly connected to the shaft ends of the horizontal and vertical helical blade shafts; a transmission motor is fixed to the top surface of the vertical cylinder, and its power output shaft is drivenly connected to the top end of the vertical helical blade shaft; a material passage shell is used to connect the outer end of the horizontal cylinder cavity and the bottom end of the vertical cylinder cavity; the top end of the discharge cylinder is inclinedly sleeved on the outer side wall of the top end of the vertical cylinder.

[0009] Preferably, a shovel plate is fixed tangentially to the horizontal cylinder at the position corresponding to the bottom edge of the strip opening.

[0010] Preferably, the central support includes a base fixed to the center of the bottom surface of the circular sewage tank using anchor bolts, a column fixed to the center of the top surface of the base, and a bearing fitted onto the outside of the column. The connecting seat is rotatably connected to the column through the bearing.

[0011] Preferably, the connecting seat includes a rotating cylinder that is fitted and matched with the bearing and a side plate fixed to the side wall of the rotating cylinder, and the inner end of the horizontal cylinder is fixedly connected to the side plate.

[0012] Preferably, the top of the column is detachably fitted with an end cap.

[0013] Preferably, the walking base includes a support plate, a sleeve fixedly fitted vertically to the inner end of the support plate, a vertical plate fixed to the outer end of the bottom surface of the support plate, a walking motor fixed to the outer wall of the vertical plate with its power output shaft passing through the vertical plate, and a walking wheel located on the inner side of the vertical plate and fixedly fitted to the inner end of the power output shaft of the walking motor. The vertical cylinder is fixedly fitted to the sleeve near its top.

[0014] Compared with the prior art, the beneficial effects of this utility model are: The sludge removal device for sewage treatment ponds disclosed in this utility model is driven by a walking base to make the whole body move in a circular motion. Through the power provided by the transmission motor and the linkage of the right-angle steering gear, the vertical and horizontal spiral blade shafts rotate simultaneously, which facilitates the timely cleaning of settled sludge and avoids sludge deposition and solidification, so that the sludge can be efficiently removed without stopping the sewage treatment pond. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a three-dimensional structural diagram of the central support of this utility model; Figure 3 This is a three-dimensional structural diagram of the connector of this utility model; Figure 4 This is a three-dimensional structural diagram of the walking base of this utility model; Figure 5 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0016] In the diagram: 1-Central support; 1.1-Base; 1.2-Column; 1.3-Bearing; 1.4-End cap; 2-Connecting seat; 2.1-Rotating drum; 2.2-Side plate; 3-Horizontal cylinder; 3.1-Strip opening; 3.2-Shovel plate; 4- Horizontal helical blade shaft; 5-Vertical cylindrical body; 6-Vertical helical blade shaft; 7-Right-angle steering gear; 8-Feeding housing; 9-Traveling base; 9.1-Support plate; 9.2-Sleeve; 9.3-Vertical plate; 9.4-Traveling motor; 9.5-Traveling wheel; 10 - Conveyor motor; 11-Discharge cylinder. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a bottom sludge removal device for a sewage treatment tank, wherein a central support 1 is fixed at the center of the bottom surface of a circular sewage tank; wherein, the central support 1 includes a base 1.1 fixed to the center of the bottom surface of the circular sewage tank with anchor bolts, a column 1.2 fixed to the center of the top surface of the base 1.1, and a bearing 1.3 fitted on the outside of the column 1.2, and an end cap 1.4 detachably fitted on the top of the column 1.2.

[0019] The connecting seat 2 includes a rotating cylinder 2.1 that is fitted and matched with the bearing 1.3 and a side plate 2.2 fixed to the side wall of the rotating cylinder 2.1.

[0020] The inner end of the horizontal cylinder 3 is vertically fixed to the side wall of the side plate 2.2 and extends radially along the circular sewage tank. The bottom of the horizontal cylinder 3 is provided with a strip-shaped opening 3.1 along its axial direction.

[0021] The horizontal helical blade shaft 4 is rotatably installed inside the horizontal cylinder 3.

[0022] The traveling base 9 moves in a circular motion along the edge of the circular sewage tank. The traveling base 9 includes a support plate 9.1, a sleeve 9.2 fixedly fitted vertically to the inner end of the support plate 9.1, a vertical plate 9.3 fixed to the outer end of the bottom surface of the support plate 9.1, a traveling motor 9.4 fixed to the outer wall of the vertical plate 9.3 with its power output shaft passing through it, and a traveling wheel 9.5 located on the inner side of the vertical plate 9.3 and fixedly fitted to the inner end of the power output shaft of the traveling motor 9.4. The extension direction of the support plate 9.1 is consistent with the extension direction of the horizontal cylinder 3. That is, the traveling motor 9.4 drives the traveling wheel 9.5 to rotate, thereby enabling the traveling base 9 to move in a circular motion along the edge of the circular sewage tank. The traveling motor 9.4 can be driven by a power battery mounted on the support plate 9.1; or it can be powered by a cable. When using a cable power supply, proper cable preparation, guidance, and switching operations should be performed to prevent cable entanglement during the operation of the traveling base 9.

[0023] The vertical cylinder 5 is fixed to the traveling base 9 near the top and extends vertically near the wall of the circular sewage tank; wherein, the vertical cylinder 5 is fixedly sleeved to the sleeve 9.2 near the top.

[0024] The vertical helical blade shaft 6 is rotatably installed inside the vertical cylinder 5.

[0025] The right-angle steering gear 7 is fixed to the outer end face of the horizontal cylinder 3, and the two shafts are respectively fixedly connected to the outer shaft end of the horizontal helical blade shaft 4 and the bottom shaft end of the vertical helical blade shaft 6.

[0026] The transmission motor 10 is fixed to the top surface of the vertical cylinder 5 and its power output shaft is connected to the top end of the vertical helical blade shaft 6. That is, the transmission motor 10 directly drives the vertical helical blade shaft 6 to rotate, and then the bottom end of the vertical helical blade shaft 6 drives the horizontal helical blade shaft 4 to rotate through the right-angle deflector 7.

[0027] The material handling shell 8 is used to connect the outer end of the horizontal cylinder 3 cavity and the bottom end of the vertical cylinder 5 cavity.

[0028] The top of the discharge cylinder 11 is inclined and sleeved on the outer side wall of the top of the vertical cylinder 5.

[0029] In summary, the simultaneous rotation of the horizontal helical blade shaft 4 and the vertical helical blade shaft 6 is achieved by the driving action of the transmission motor 10 and the transmission action of the right-angle steering gear 7. The traveling base 9 drives the entire equipment to perform circular motion.

[0030] The horizontal cylinder 3 moves in a circular motion at the bottom of the circular sewage treatment tank. The sludge enters the horizontal cylinder 3 through the strip opening 3.1. The horizontal spiral blade shaft 4 continuously pushes the sludge in the horizontal cylinder 3 outwards. The sludge enters the bottom of the vertical cylinder 5 through the material conveying shell 8. Then, the vertical spiral blade shaft 6 pushes the sludge upwards until it is discharged from the discharge cylinder 11, thereby realizing the removal of bottom sludge in the circular sewage treatment tank.

[0031] The sludge removal process in the wastewater treatment tank should be carried out promptly when the sludge thickness does not exceed the upper edge of the strip opening 3.1. During overall equipment operation, a low-speed, full-feed approach should be adopted to minimize the agitation of the water in the tank by the horizontal cylinder 3. The vertical cylinder 5 should move close to the tank wall to ensure normal sludge settling in the wastewater treatment tank. For the sludge at the outer edge of the bottom of the wastewater treatment tank, an inclined plate (not shown in the figure) is installed at the outer end of the horizontal cylinder 3 to gather the sludge from the outer edge of the tank bottom towards the center when the horizontal cylinder 3 rotates horizontally, ensuring that this portion of the bottom sludge can be fed through the strip opening 3.1.

[0032] A shovel plate 3.2 is fixed tangentially to the bottom edge of the horizontal cylinder 3 corresponding to the strip opening 3.1. That is, as the horizontal cylinder 3 swings horizontally, the shovel plate 3.2 can easily shovel and deliver the silt from the bottom of the pool into the horizontal cylinder 3.

[0033] It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sludge removal device for a sewage treatment pond, characterized in that, include: The central support (1) is fixed at the center of the bottom surface of the circular sewage tank; The connecting seat (2) is rotated and connected to the central support (1); The horizontal cylinder (3) is vertically fixed at its inner end to the side wall of the connecting seat (2) and extends radially along the circular sewage tank. The bottom of the horizontal cylinder (3) is provided with a strip-shaped opening (3.1) along its axial direction. A horizontal helical blade shaft (4) is rotatably installed in the inner cavity of the horizontal cylinder (3); The walking base (9) moves in a circular motion along the edge of the circular sewage tank; The vertical cylinder (5) is fixed to the walking base (9) near the top and extends vertically near the wall of the circular sewage tank; The vertical helical blade shaft (6) is rotatably installed inside the vertical cylinder (5); The right-angle steering gear (7) is fixed to the outer end face of the horizontal cylinder (3) and the two shafts are respectively fixedly connected to the shaft ends of the horizontal helical blade shaft (4) and the vertical helical blade shaft (6); A transmission motor (10) is fixed to the top surface of the vertical cylinder (5) and its power output shaft is connected to the top end of the vertical spiral blade shaft (6). The material conveying shell (8) is used to connect the outer end of the cavity of the horizontal cylinder (3) and the bottom end of the cavity of the vertical cylinder (5); The discharge cylinder (11) is inclined at its top end and fitted onto the outer wall of the top end of the vertical cylinder (5).

2. The sludge removal device for a sewage treatment pond according to claim 1, characterized in that: The horizontal cylinder (3) is tangentially fixed with a shovel plate (3.2) at the position corresponding to the bottom edge of the strip opening (3.1).

3. The sludge removal device for a sewage treatment pond according to claim 1, characterized in that: The central support (1) includes a base (1.1) fixed to the center of the bottom surface of the circular sewage tank with anchor bolts, a column (1.2) fixed to the center of the top surface of the base (1.1), and a bearing (1.3) fitted on the outside of the column (1.2). The connecting seat (2) is rotatably connected to the column (1.2) through the bearing (1.3).

4. The sludge removal device for a sewage treatment pond according to claim 3, characterized in that: The connecting seat (2) includes a rotating cylinder (2.1) that is fitted and matched with the bearing (1.3) and a side plate (2.2) fixed to the side wall of the rotating cylinder (2.1). The inner end of the horizontal cylinder (3) is fixedly connected to the side plate (2.2).

5. The sludge removal device for a sewage treatment pond according to claim 4, characterized in that: The top of the column (1.2) is detachably fitted with an end cap (1.4).

6. The sludge removal device for a sewage treatment pond according to claim 1, characterized in that: The walking base (9) includes a support plate (9.1), a sleeve (9.2) fixedly fitted vertically to the inner end of the support plate (9.1), a vertical plate (9.3) fixed to the outer end of the bottom surface of the support plate (9.1), a walking motor (9.4) fixed to the outer wall of the vertical plate (9.3) and having its power output shaft pass through the vertical plate (9.3), and a walking wheel (9.5) located on the inner side of the vertical plate (9.3) and fixedly fitted to the inner end of the power output shaft of the walking motor (9.4). The vertical cylinder (5) is fixedly fitted to the sleeve (9.2) near its top end.

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