Maintenance tool special for propeller of biological tank of sewage treatment plant

Abstract

The utility model provides a special maintenance tool for a propeller of a biological tank of a sewage treatment plant, which belongs to the technical field of sewage treatment and comprises a maintenance movable frame, the maintenance movable frame is used for fixing the propeller and is rotatably mounted on a base, and a maintenance operation surface of the propeller can be conveniently adjusted by the maintenance movable frame through rotation. According to the scheme, the propeller is fixed through the maintenance movable frame and the motor placing seat, maintenance personnel do not need to carry equipment to adjust a maintenance operation surface, supporting is firm, the problem that the propeller is unstable in the original maintenance process is solved, the labor cost is greatly reduced, and meanwhile operation convenience and safety are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a special maintenance tool for the propeller of a biological tank in a wastewater treatment plant. Background Technology

[0002] The largest component in a wastewater treatment plant is the biological treatment tank, which plays a crucial role in wastewater treatment. As part of the biological reaction unit, it absorbs harmful substances and degrades organic matter. The core equipment of the biological treatment tank is the submersible propeller, which consists of a motor at one end and an impeller at the other. In the biological treatment tank, it propels and stirs the water, ensuring thorough mixing of activated sludge flocs with pollutants in the wastewater to prevent sludge deposition, while simultaneously directing the water flow in a specific direction.

[0003] A wastewater treatment plant's biological treatment tank has 40 submersible propellers that have been operating continuously for many years. Frequent mechanical seal leaks trigger alarms, requiring maintenance personnel to disassemble the propellers and repair the seals. The following problems were encountered during the maintenance process: 1. The propellers are imported equipment, expensive and very heavy, requiring four maintenance personnel to work together during repairs; 2. Manual disassembly and handling of the propellers during maintenance poses safety hazards, as they could easily cause injury to workers from impacts; 3. The propellers need to be manually adjusted to the maintenance operating surface, which results in instability. Utility Model Content

[0004] The purpose of this utility model is to provide a special maintenance tool for the propeller of the biological tank in a sewage treatment plant, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A special maintenance tool for a biological tank propeller in a wastewater treatment plant includes: a maintenance movable frame for fixing the propeller, wherein the maintenance movable frame is rotatably mounted on a base, allowing the maintenance movable frame to be rotated to adjust the maintenance operation surface of the propeller.

[0007] Preferably, one end of the maintenance mobile frame is provided with a motor mounting base, which is used to fix and install the pusher motor, and the end of the maintenance mobile frame away from the motor mounting base is rotatably mounted on the top of the base via a rotating shaft.

[0008] Preferably, a clearance opening is provided on the top side of the base away from the rotating shaft, and the clearance opening is located below the motor mounting base.

[0009] Preferably, a pair of fasteners are fixedly installed on the top of the base near the clearance opening, and a stabilizer bar is detachably installed inside the fasteners.

[0010] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0011] This solution secures the propeller using a mobile maintenance frame and motor mounting base. The entire process eliminates the need for maintenance personnel to move the equipment or adjust the maintenance work surface, ensuring stable support and resolving the previous issue of propeller instability during maintenance. This solution allows for equipment maintenance without compromising efficiency, reducing the number of operators from four to two, significantly lowering labor costs while maintaining ease and safety of operation. Attached Figure Description

[0012] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Base; 11. Bottom rectangular frame; 12. Top rectangular frame; 13. Support rod; 14. Reinforcing rod; 2. Maintenance mobile frame; 21. Rectangular frame; 22. Motor mounting base; 23. Rotating shaft; 24. Clamp; 25. Clearance opening; 26. Fastener; 27. Stabilizer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] This solution utilizes a mobile maintenance frame 2 and a motor mounting base 22. During use, the mobile maintenance frame 2 is adjusted to a vertical position, with the motor mounting base 22 at the bottom. The propeller, removed from the biological tank, is lifted by an external crane. With human assistance, the maintenance operating surface of the propeller is oriented away from the rectangular frame 21, and then the propeller motor is placed downwards into the motor mounting base 22. The external crane hook is then adjusted, and the crane continues to rise, rotating the mobile maintenance frame 2 around the pivot 23 until the propeller is horizontal, i.e., the maintenance operating surface is facing upwards. The adjustment is then complete. Throughout the maintenance process, only two people are required: one operates the propeller, and the other supervises safety, ensuring a perfect fit between the propeller and its specialized tools.

[0018] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0019] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments. Example 1

[0020] A special maintenance tool for biological tank propellers in wastewater treatment plants, such as Figure 1 As shown, it includes a base 1 and a maintenance movable frame 2 rotatably mounted on the base 1. In this embodiment, both the base 1 and the maintenance movable frame 2 are welded from angle iron.

[0021] The base 1 includes a bottom rectangular frame 11 that contacts the ground and a top rectangular frame 12 that is parallel to the bottom rectangular frame 11 and positioned above it. Corresponding corners of the bottom rectangular frame 11 and the top rectangular frame 12 are fixedly connected by support rods 13. In addition, a reinforcing rod 14 is welded between the two to further strengthen the base 1. The length of the support rod 13 is greater than the rotation radius of the propeller impeller, so that when the propeller is in a horizontal position, its impeller will not collide with the ground.

[0022] like Figure 1 As shown, the maintenance frame 2 includes a rectangular frame 21. One end of the rectangular frame 21 is vertically welded with a motor mounting base 22. The motor mounting base 22 and the rectangular frame 21 are connected in an "L" shape. The motor mounting base 22 has a semi-enclosed structure with its opening facing the rotating shaft 23, which facilitates the insertion of the propeller motor from the semi-enclosed opening. The shape and size of the motor mounting base 22 are matched with the propeller motor and can be designed according to actual use. It is used to securely fix the propeller motor and ensure the stability of the propeller.

[0023] like Figure 1 As shown, a rotating shaft 23 is fixedly welded to the bottom end of the maintenance mobile frame 2 away from the motor mounting base 22. A pair of clamps 24 are symmetrically welded to the top two sides of the base 1 (i.e., the two opposite sides of the top rectangular frame 12). The maintenance mobile frame 2 and the base 1 are rotatably connected by the rotating shaft 23 and the clamps 24. In addition, a clearance opening 25 is provided on the top side of the base 1 away from the rotating shaft 23. The clearance opening 25 is located below the motor mounting base 22. The clearance opening 25 and the rotating shaft 23 are located on the two opposite sides of the top rectangular frame 12. The two cooperate with each other to facilitate the rotation of the maintenance mobile frame 2 around the rotating shaft 23, thereby adjusting the maintenance operation surface of the thruster.

[0024] The length of the rectangular frame 21 should be less than the length of the propeller excluding the impeller portion, to avoid collision between the impeller and the structure of this utility model when the propeller is rotated and adjusted to the maintenance operation surface, thereby preventing damage to the propeller.

[0025] The workflow of this solution is as follows: During use, adjust the maintenance frame 2 to a vertical position, with the motor mounting base 22 at the bottom. The propeller removed from the biological tank is lifted by an external crane. With human assistance, the maintenance operating surface of the propeller is oriented away from the rectangular frame 21. Then, the propeller motor is placed downwards into the motor mounting base 22. The external crane hook is then adjusted, and the crane continues to rise, rotating the maintenance frame 2 around the pivot 23 until the propeller is horizontal, i.e., the maintenance operating surface is facing upwards. The adjustment is then complete. Example 2

[0026] Its main difference from Example 1 is:

[0027] A pair of fasteners 26 are fixedly installed on both sides of the top of the base 1 near the clearance opening 25. A stabilizing rod 27 is detachably installed inside the fastener 26. The stabilizing rod 27 is inserted after the pusher is adjusted to the maintenance operation surface, and further supports it from the bottom of the maintenance mobile frame 2 to prevent accidents such as the external crane coming off the hook.

[0028] The above-described preferred embodiments of the present invention are provided for guidance, but it will be apparent to those skilled in the art that such embodiments are provided merely by way of example. Many modifications, alterations, and alternatives will arise in the mind and spirit of the present invention without departing from its intent. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A dedicated service tool for a biological tank propeller of a sewage treatment plant, characterized in that, Include: Base (1) and overhaul movable rack (2), overhaul movable rack (2) is used for fixing propeller, one end of overhaul movable rack (2) is equipped with motor placing seat (22), motor placing seat (22) is used for fixing and installing propeller motor, one end of overhaul movable rack (2) away from motor placing seat (22) is rotatably installed on the top of base (1) through pivot (23), so as to facilitate the adjustment of the overhaul operation surface of propeller through the rotation of overhaul movable rack (2).

2. The special maintenance tool for the biological tank propeller of a sewage treatment plant according to claim 1, characterized in that: The side of the top of base (1) away from pivot (23) is provided with a clearance (25), and the clearance (25) is located below the motor placing seat (22).

3. The special maintenance tool for the biological tank propeller of a sewage treatment plant according to claim 2, characterized in that: A pair of fasteners (26) are fixedly installed on the top of base (1) close to the clearance (25), and a stabilizing rod (27) can be detachably installed in the fastener (26).

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