Stirring device for anaerobic tank

Abstract

A stirring shaft is arranged in the anaerobic tank and penetrates through a tank cover of the anaerobic tank, a mounting seat is arranged at the center of the upper side of the tank cover, the upper end of the stirring shaft penetrates through the mounting seat, a transverse plate is arranged at the upper end of the stirring shaft, a transverse sliding hole is formed in the middle of the transverse plate, a vertical plate is arranged on one side of the mounting seat, and the vertical plate is arranged on the other side of the mounting seat. The stirring motor is fixedly installed on the vertical plate, the front end of an output shaft of the stirring motor is in shaft connection with the Z-shaped frame, and a transverse shaft at the upper end of the Z-shaped frame is slidably installed in the sliding hole; a plurality of stirring blades are circumferentially and uniformly arranged at the lower end of the stirring shaft, and are positioned on the inner side of the flow pipe. According to the stirring device, the rotatable stirring shaft is changed to move up and down, the stirring motor drives the stirring shaft to move up and down through the Z-shaped frame, and the stirring device has the advantages of high mixing efficiency, low shearing force, low energy consumption, convenience in maintenance and the like.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection equipment, and more specifically, to a stirring device for an anaerobic pond. Background Art

[0002] In the process of sewage treatment, the anaerobic pond is one of the commonly used treatment facilities, and the organic matter in the sewage is degraded by the action of anaerobic microorganisms. In order to improve the treatment efficiency and ensure the full contact between anaerobic microorganisms and the organic matter in the sewage, it is usually necessary to stir the sewage in the anaerobic pond.

[0003] The currently adopted stirring methods are as follows:

[0004] 1. Mechanical stirring: By installing a stirrer or stirring paddle, the sewage is stirred mechanically. This method is simple and direct, but it cannot fully stir the sewage, resulting in poor stirring effect;

[0005] 2. Gas stirring: By injecting air or biogas into the sewage, the power generated by the rising bubbles is used for stirring. This method is relatively gentle, but the stirring effect is limited by the gas volume and distribution, and an additional gas generating device may be required;

[0006] 3. Fluid circulation: By using a pump or other fluid power equipment, the circulation flow of the sewage in the anaerobic pond is formed to achieve stirring. This method has a good effect, but it has high energy consumption and complex equipment maintenance. Summary of the Utility Model

[0007] Based on the above technical problems, the utility model proposes a stirring device for an anaerobic pond.

[0008] A stirring device for an anaerobic pond includes: a stirring motor, a stirring shaft, and stirring blades. The stirring shaft is arranged in the anaerobic pond, and the stirring shaft passes through the pond cover of the anaerobic pond. An installation seat is provided at the center on the upper side of the pond cover. The upper end of the stirring shaft passes through the installation seat. A horizontal plate is provided at the upper end of the stirring shaft. A horizontal sliding hole is opened in the middle of the horizontal plate. A vertical plate is provided on one side of the installation seat. The stirring motor is fixedly installed on the vertical plate. The front end of the output shaft of the stirring motor is connected to a Z-shaped frame. The horizontal shaft at the upper end of the Z-shaped frame is slidably installed in the sliding hole; a flow pipe is provided at the lower end of the stirring shaft. A plurality of the stirring blades are evenly arranged in a circle at the lower end of the stirring shaft, and the stirring blades are located inside the flow pipe.

[0009] Preferably, the stirring blades are rotatably installed on the stirring shaft.

[0010] Preferably, the flow pipe adopts a design with non-uniform diameters along its axis direction, specifically, it is thin in the middle and thick at both ends, and the stirring blades are located at the middle of the flow pipe.

[0011] Preferably, the Z-shaped frame is composed of a horizontal shaft, a vertical shaft, and a coupling, forming a Z-shaped structure. An adjustment screw is provided at the upper part of the vertical shaft, which is in threaded cooperation with the vertical shaft. The horizontal shaft is rotatably connected to the upper end of the adjustment screw, and the lower end of the vertical shaft is fixedly connected to the coupling. The adjustment screw is provided with a fixing bolt and a locking bolt. The fixing bolt is fixed at the upper part of the adjustment screw, and the locking bolt is located at the lower part of the adjustment screw, which can lock the adjustment screw on the vertical shaft.

[0012] Preferably, clamping grooves are formed on the upper and lower arms of the sliding hole, and a convex ring is provided in the middle of the horizontal shaft, which is clamped in the clamping groove.

[0013] Beneficial effects: This stirring device changes the rotatable stirring shaft into a vertical movement. The stirring motor drives the stirring shaft to move up and down through the Z-shaped frame, which has the advantages of high mixing efficiency, low shear force, low energy consumption, and convenient maintenance.

[0014] A flow tube is provided at the stirring blade. Its structure is thinner in the middle and thicker at both ends. The flow tube can effectively disrupt or change the flow state of the flowing fluid. When the fluid passes through the flow tube, the thinner part in the middle will accelerate the fluid, while the thicker parts at both ends help to guide the fluid in and out, improving the efficiency of vertical mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shows the structural schematic diagram of the present invention;

[0016] Figure 2 Shows the sectional view of the present invention;

[0017] Figure 3 Shows the structural diagram of the Z-shaped frame of the present invention;

[0018] Figure 4 Shows the structural schematic diagram of the flow tube of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0020] Such as Figures 1 to 4A stirring device for an anaerobic tank is shown, including: a stirring motor 10, a stirring shaft 4, and stirring blades 6. The stirring shaft 4 is installed in the anaerobic tank 1. The stirring shaft 4 passes through the tank cover 2 of the anaerobic tank and can slide up and down on the tank cover 2. At the center of the upper side of the tank cover 2, there is an installation seat 3. The upper end of the stirring shaft 4 slides through the installation seat 3. A horizontal plate 7 is provided at the upper end of the stirring shaft 4. A horizontal sliding hole 8 is opened in the middle of the horizontal plate 7. A vertical plate 11 is provided on one side of the installation seat 3. The stirring motor 10 is fixedly installed on the vertical plate 11. The front end of the output shaft of the stirring motor 10 is connected to the Z-shaped frame 9 by a shaft. The horizontal shaft 91 at the upper end of the Z-shaped frame 9 is slidably installed in the sliding hole 8. A flow pipe 5 is provided at the lower end of the stirring shaft 4. A plurality of stirring blades 6 are evenly arranged in a circle at the lower end of the stirring shaft 4. The stirring blades 6 are rotatably installed on the stirring shaft 4. The stirring blades 6 are located inside the flow pipe 5. Connecting rods 12 are provided on the inner sides of the upper and lower ends of the flow pipe 5. The other ends of the connecting rods 12 are fixed to the stirring shaft 4.

[0021] The output shaft of the stirring motor 10 drives the Z-shaped frame 9 to rotate. When the Z-shaped frame 9 rotates, it drives the horizontal plate 7 to move up and down. At this time, the stirring shaft 4 also moves up and down. The stirring shaft 4 drives the stirring blades 6 at the lower end to disturb the sewage in the anaerobic tank with the up and down movement of the stirring shaft 4, realizing the up and down mixing of the sewage. It can cooperate with an ordinary stirring device to achieve more sufficient and uniform stirring of the anaerobic tank.

[0022] In a possible implementation, the flow pipe 5 adopts a design with a non-uniform diameter along its axis. Specifically, it is thinner in the middle and thicker at both ends. The stirring blades 6 are located at the middle of the flow pipe 5. The flow pipe 5 can effectively disrupt or change the flow state of the flowing fluid. When the fluid passes through the flow pipe 5, the thinner part in the middle accelerates the fluid, while the thicker parts at both ends help to guide the fluid in and out, improving the efficiency of up and down mixing.

[0023] In a possible implementation, the Z-shaped frame 9 is a Z-shaped frame composed of a horizontal shaft 91, a vertical shaft 93, and a coupling 94. An adjusting screw 95 is provided on the upper part of the vertical shaft 93. The vertical shaft 93 is in threaded cooperation with the adjusting screw 95. The upper end of the adjusting screw 95 is a rotatably connected shaft sleeve 92. The horizontal shaft 91 is connected and fixed to the shaft sleeve 92. The lower end of the vertical shaft 93 is connected and fixed to the coupling 94. Fixing bolts 96 and locking bolts 97 are provided on the adjusting screw 95. The fixing bolts 96 are fixed on the upper part of the adjusting screw 95. The locking bolts 97 are located at the lower part of the adjusting screw 95 and can lock the adjusting screw 95 on the vertical shaft 93.

[0024] In this implementation, the height of the Z-shaped frame 9 can be changed by the adjusting screw 95. By changing the height of the Z-shaped frame 9, the range of up and down movement of the stirring shaft 4 can be changed, increasing the up and down stroke distance of the stirring blades 6, making the stirring and mixing more sufficient.

[0025] In a possible implementation, clamping grooves are formed on the upper and lower arms of the sliding hole 8, and a convex ring 98 is provided in the middle of the horizontal shaft 91. The convex ring 98 is stuck in the clamping groove. In this structure, the horizontal shaft 91 and the sliding hole 8 are in a clamped state, preventing the horizontal shaft 91 from sliding out of the sliding hole 8.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A stirring device for an anaerobic tank, characterized in that: include: A stirring motor, a stirring shaft, and a stirring blade. The stirring shaft is arranged in an anaerobic tank, and the stirring shaft passes through the pool cover of the anaerobic tank. A mounting seat is arranged at the center of the upper side of the pool cover. The upper end of the stirring shaft passes through the mounting seat. A horizontal cross plate is arranged at the upper end of the stirring shaft. A horizontal sliding hole is opened in the middle of the cross plate. A vertical plate is arranged on one side of the mounting seat. The stirring motor is fixedly mounted on the vertical plate. The front end of the output shaft of the stirring motor is connected to the Z-frame shaft. The horizontal shaft at the upper end of the Z-frame is slidably mounted in the sliding hole. A flow tube is arranged at the lower end of the stirring shaft. A plurality of stirring blades are evenly arranged at the lower end of the stirring shaft in a circle. The stirring blades are located on the inner side of the flow tube.

2. The stirring device for an anaerobic tank according to claim 1, characterized in that: The stirring blade is rotatably mounted on the stirring shaft.

3. The stirring device for an anaerobic tank according to claim 1, characterized in that: The flow tube adopts a design of non-uniform diameter along its axial direction, specifically, it is thin in the middle and thick at both ends, and the stirring blade is located in the middle of the flow tube.

4. The stirring device for an anaerobic tank according to claim 1, characterized in that: The Z-shaped frame is composed of a horizontal axis, a vertical axis and a coupling axis. An adjusting screw is provided on the upper part of the vertical axis. The vertical axis is threadedly matched with the adjusting screw. The horizontal axis is rotatably connected to the upper end of the adjusting screw. The lower end of the vertical axis is fixedly connected to the coupling axis. A fixing bolt and a locking bolt are provided on the adjusting screw. The fixing bolt is fixed to the upper part of the adjusting screw. The locking bolt is located at the lower part of the adjusting screw and can lock the adjusting screw on the vertical axis.

5. The stirring device for an anaerobic tank according to claim 1, characterized in that: The upper and lower arms of the sliding hole are provided with clamping grooves, and a convex ring is arranged in the middle of the horizontal axis, and the convex ring is clamped in the clamping groove.

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