Anti-blocking stirring device

Abstract

The utility model discloses an anti-blocking stirring device and relates to the technical field of sewage treatment equipment. The anti-blocking stirring device comprises a mounting frame, a rotating shaft, an intercepting screen and a power mechanism, the intercepting screen is fixed in the mounting frame, the power mechanism is fixed on the mounting frame and connected with the rotating shaft, and a plurality of stirring shafts are spirally fixed on the rotating shaft. Stirring paddle blades made of rubber materials are arranged and detachably and fixedly connected to the ends of the stirring shafts, and the outer edges of the stirring paddle blades are in a sawtooth shape. According to the utility model, the stirring paddle blades rotate for stirring, so that the sewage flowing efficiency is improved, the sieve pores are prevented from being blocked, the dispersion of the suspended filler in the biological tank can be promoted, and the stirring paddle blades are made of rubber materials, so that the abrasion between the stirring paddle blades and each part is effectively reduced; and the service life of each part during sewage treatment is obviously prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to an anti-clogging stirring device. Background Art

[0002] MBBR process is an efficient wastewater treatment process, mainly used to treat wastewater with high concentration of organic matter and pollutants that are difficult to degrade. The suspended filler in MBBR process will be blocked on the inner side of the interception screen at the outlet due to the flow of sewage water. At present, the conventional anti-clogging method is to add perforated aeration at the bottom of the pool to flush the screen, but the operation of this aeration has certain shortcomings: on the one hand, the energy consumption of aeration is high, and on the other hand, it affects the circulation and fluidization of the suspended filler. Utility Model Content

[0003] In view of the above-mentioned current method of preventing blockage by aeration and flushing, there are problems such as high aeration energy consumption and influence on the circulation and fluidization of suspended fillers. The utility model provides an anti-blocking stirring device.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An anti-clogging stirring device comprises a mounting frame, a rotating shaft, an intercepting screen and a power mechanism, wherein the intercepting screen is fixed in the mounting frame, the power mechanism is fixed on the mounting frame and is drivingly connected to the rotating shaft, and a plurality of stirring shafts are fixed on the rotating shaft in a spiral shape. A stirring paddle blade is provided, the stirring paddle blade is made of rubber material, the stirring paddle blade is detachably fixedly connected to the end of the stirring shaft, and the outer edge of the stirring paddle blade is serrated.

[0006] Furthermore, the mounting frame is a frame structure, the intercepting screen is a hollow semi-cylindrical shape with a plurality of screen holes, and the intercepting screen has a first opening and a second opening, the first opening is opened on the top wall of the mounting frame, and the second opening is opened on a side wall of the mounting frame.

[0007] Furthermore, a circular or fan-shaped upper cover plate is adapted to be provided at the first opening, the power mechanism is connected to the upper cover plate, the upper cover plate is detachably fixedly connected to the mounting frame, and the outer edge of the stirring shaft protrudes from the second opening.

[0008] Furthermore, the stirring paddle blade is inclined, and the angle formed by the angle between the stirring paddle blade and the horizontal plane is 5-30°.

[0009] Furthermore, the power mechanism includes a motor and a reducer, the motor is connected to the upper end of the rotating shaft through the reducer, and the lower end of the rotating shaft is not in contact with the intercepting screen.

[0010] Furthermore, the Shore hardness of the stirring paddle blade is 20 - 100 degrees, and the thickness of the stirring paddle blade is 3 - 10 mm.

[0011] Furthermore, the Shore hardness of the stirring paddle blade is 50 - 70 degrees.

[0012] Furthermore, the Mooney viscosity ML(1+4) of the stirring paddle blade at 100 °C ranges from 20 to 120.

[0013] Furthermore, the Mooney viscosity ML(1+4) of the stirring paddle blade at 100 °C ranges from 35 to 60.

[0014] The beneficial effects of the present utility model are as follows: The present utility model drives the stirring paddle blade to rotate and stir through a rotating shaft, which can not only improve the efficiency of sewage flow inside and outside the intercepting screen, effectively prevent blockage at the intercepting screen, but also promote the uniform dispersion of suspended fillers in the biological pond. Moreover, the stirring paddle blade is made of rubber material, which effectively reduces the wear between the stirring paddle blade and the suspended fillers and the intercepting screen, significantly improving the service life of each component during the sewage treatment process. The present utility model drives the stirring paddle blade to rotate and stir through a rotating shaft, avoiding the use of aeration scouring, reducing the aeration energy consumption while also avoiding affecting the circulating fluidization of the suspended fillers. Description of the Drawings

[0015] Figure 1 The structural principle schematic diagram of an embodiment of the present utility model is shown.

[0016] Figure 2 Shown is Figure 1 a side view of Detailed Embodiments

[0017] The present utility model discloses an anti-blocking stirring device. The following makes a specific description of an embodiment of the present utility model in conjunction with the accompanying drawings.

[0018] In conjunction with Figure 1 and Figure 2As shown in the figure, the anti-clogging stirring device includes an installation frame 1, a rotating shaft 7, an intercepting screen 2, stirring paddle blades 9 and a power mechanism. The installation frame 1 is a frame structure in the shape of a cuboid. The intercepting screen 2 is in the shape of a hollow semi-cylinder and is detachably and fixedly connected inside the installation frame 1. A number of sieve holes 3 are provided on the intercepting screen 2. The intercepting screen 2 has a first opening and a second opening. The first opening is opened on the top wall of the installation frame 1. A circular or fan-shaped upper cover plate 6 is adaptively provided at the first opening. The edge of the upper cover plate 6 is detachably and fixedly connected to the top wall of the installation frame 1 by bolts. The power mechanism is detachably and fixedly connected to the top of the upper cover plate 6. The power mechanism includes a motor 4 and a speed reducer 5. The motor 4 passes through the upper cover plate 6 through the speed reducer 5 to be connected to the rotating shaft 7 located inside the intercepting screen 2, driving the rotating shaft 7 to rotate. The upper end of the rotating shaft 7 is detachably and fixedly connected to the speed reducer 5 by a flange for easy replacement. The lower end plane of the rotating shaft 7 is suspended and does not contact the bottom surface of the intercepting screen 2, which can prevent the lower end of the rotating shaft 7 from rubbing against the intercepting screen 2 and avoid wear of the cross section of the lower end of the rotating shaft 7. A wear-resistant sleeve is sleeved on the lower end of the rotating shaft 7. The wear-resistant sleeve is made of organic material to further improve the protection effect of the lower end of the rotating shaft 7. A number of stirring shafts 8 are detachably and fixedly connected to the outer wall of the rotating shaft 7 in a spiral shape from bottom to top.

[0019] The stirring paddle blades 9 are made of rubber material and are detachably and fixedly connected to the ends of the stirring shafts 8 in an inclined shape by bolts. The lift angle formed by the angle between the stirring paddle blades 9 and the horizontal plane is 5-30°. The edge of the stirring paddle blades 9 is serrated. In this embodiment, the thickness of the stirring paddle blades 9 is 3-10 mm. The Shore hardness of the stirring paddle blades 9 is 20-100 degrees. In this embodiment, the Shore hardness of the stirring paddle blades 9 is preferably 50-70 degrees. The Mooney viscosity ML(1+4)100°C range of the stirring paddle blades 9 is 20-120. In this embodiment, the Mooney viscosity ML(1+4)100°C range of the stirring paddle blades 9 is preferably 35-60.

[0020] The intercepting screen 2 is adjacent to the front side of the installation frame 1. The second opening of the intercepting screen 2 is opened on the front side wall of the installation frame 1. When the outer edge of the stirring shaft 8 and the stirring paddle blades 9 rotate, they protrude from the second opening and the installation frame 1. The intercepting screen 2 is detachably and fixedly connected to the installation frame 1. The staff can replace the intercepting screen 2 with different concave angles according to the actual situation, that is, replace the intercepting screen 2 with different cylindrical diameters.

[0021] During use, the anti-clogging stirring device is installed in the biological pond containing suspended fillers. The motor 4 drives the rotating shaft 7 to rotate through the speed reducer 5. At the same time, the rotating shaft 7 drives the stirring shaft 8 and the stirring paddle blades 9 to rotate. The stirring paddle blades 9 have a lift angle when installed on the stirring shaft 8, and a spiral structure is formed between the stirring paddle blades 9. Moreover, the outer edge of the stirring paddle blades 9 is serrated. When rotating, the rotational motion can stir the fillers from bottom to top and from inside to outside, so as to realize the movement of the fillers along a predetermined trajectory and uniform dispersion, and avoid the problem of accumulation and blockage of the fillers at the outlet-side intercepting screen 2.

[0022] The utility model drives the stirring paddle blades 9 to rotate through the rotating shaft 7, which can not only improve the flow efficiency of the sewage on both sides of the intercepting screen 2, effectively prevent blockage at the intercepting screen 2, but also promote the uniform dispersion of the suspended fillers in the biological pond. Moreover, the stirring paddle blades 9 are made of rubber materials, which can effectively reduce the wear between the stirring paddle blades 9 and the suspended fillers and the intercepting screen 2, and significantly improve the service life of each component during the sewage treatment process by the MBBR process.

[0023] Certainly, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the utility model should also fall within the protection scope of the utility model.

Claims

1. An anti-clogging stirring device, characterized in that: The invention comprises a mounting frame (1), a rotating shaft (7), an intercepting screen (2) and a power mechanism, wherein the intercepting screen (2) is fixed in the mounting frame (1), the power mechanism is fixed on the mounting frame (1) and is drivingly connected to the rotating shaft (7), and a plurality of stirring shafts (8) are fixed in a spiral shape on the rotating shaft (7); A stirring paddle blade (9) is provided. The stirring paddle blade (9) is made of rubber material. The stirring paddle blade (9) is detachably fixedly connected to the end of the stirring shaft (8). The outer edge of the stirring paddle blade (9) is serrated.

2. The anti-clogging stirring device according to claim 1, characterized in that: The installation frame (1) is a frame structure, and the intercepting screen (2) is in the shape of a hollow semi-cylinder and has a plurality of screen holes (3); The intercepting screen (2) has a first opening and a second opening, the first opening being opened on the top wall of the mounting frame (1), and the second opening being opened on a side wall of the mounting frame (1).

3. The anti-clogging stirring device according to claim 2, characterized in that: A circular or fan-shaped upper cover plate (6) is adapted to be arranged at the first opening, the power mechanism is connected to the upper cover plate (6), the upper cover plate (6) is detachably fixedly connected to the mounting frame (1), and the outer edge of the stirring shaft (8) protrudes from the second opening.

4. The anti-clogging stirring device according to claim 1, characterized in that: The stirring paddle blade (9) is inclined, and the angle formed by the angle between the stirring paddle blade (9) and the horizontal plane is 5-30°.

5. The anti-clogging stirring device according to claim 2, characterized in that: The power mechanism comprises a motor (4) and a reducer (5); the motor (4) is connected to the upper end of the rotating shaft (7) via the reducer (5); and the lower end of the rotating shaft (7) is not in contact with the intercepting screen (2).

6. The anti-clogging stirring device according to claim 1, characterized in that: The Shore hardness of the stirring paddle blade (9) is 20-100 degrees, and the thickness of the stirring paddle blade (9) is 3-10 mm.

7. The anti-clogging stirring device according to claim 6, characterized in that: The Shore hardness of the stirring paddle blade (9) is 50-70 degrees.

8. The anti-clogging stirring device according to claim 1, characterized in that: The Mooney viscosity ML (1+4) of the stirring paddle blade (9) at 100° C. is in the range of 20-120.

9. The anti-clogging stirring device according to claim 8, characterized in that: The Mooney viscosity ML (1+4) of the stirring paddle blade (9) at 100°C is in the range of 35-60.

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