A wastewater sedimentation tank for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, specifically to a wastewater sedimentation tank for sewage treatment, comprising a sedimentation tank body, a support frame, a moving device and an accelerating mixing device, wherein the bottom wall of the sedimentation tank body is designed to be inclined forward and backward, the support frame is installed directly above the sedimentation tank body, the moving device comprises a threaded rod, a slider and a first motor, a rectangular groove is provided on the bottom wall of the support frame, the threaded rod is rotatably installed at the lower part of the rectangular groove, the rotating stirring rod can break the static laminar flow in the sewage, increase the turbulence and flow rate of the water flow, and improve the uniformity of mixing, the threaded rod drives the slider to move linearly in the rectangular groove during the rotation process, so that the accelerating mixing device can cover a larger area in the sedimentation tank body, reducing the mixing dead angle, which means that every part of the wastewater can be effectively treated by the agent, and the uniformity and consistency of the wastewater treatment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a wastewater sedimentation tank used for sewage treatment. Background Art

[0002] As we all know, the wastewater sedimentation tank of sewage treatment is an important treatment unit, which is mainly used to remove suspended particles in wastewater and achieve water purification. Its working principle is mainly based on the principle of gravity sedimentation and particle separation. When sewage containing suspended matter enters the sedimentation tank, due to the effect of gravity, the suspended matter will gradually sink to the bottom of the tank, while the clean water will gradually rise. During the sedimentation process, the suspended matter will form clumps or flocs, which helps to improve the separation effect.

[0003] Sedimentation tanks are widely used in wastewater treatment. In existing sewage treatment sedimentation tanks, the added chemicals cannot fully contact and mix with the sewage, affecting the treatment effect of the sewage. In addition, there are often particles, fibers or other impurities attached to the wall of the sedimentation tank. If they are not cleaned for a long time, these foreign objects will not only gradually accumulate, but may also affect the sedimentation effect and the capacity of the tank. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a wastewater sedimentation tank for sewage treatment.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater sedimentation tank for sewage treatment, comprising a sedimentation tank body, a support frame, a moving device and an accelerating mixing device, the bottom wall of the sedimentation tank body is designed to be inclined forward and backward, the support frame is installed directly above the sedimentation tank body, the moving device comprises a threaded rod, a slider and a first motor, the bottom wall of the support frame is provided with a rectangular groove, the threaded rod is rotatably installed in the lower part of the rectangular groove, one end of the threaded rod passes through the side wall of the support frame and is installed with the first motor, the slider is installed on the threaded rod through a bearing thread, the bottom end of the slider is installed with a cylinder, the accelerating mixing device comprises a second motor, a rotating shaft, a stirring rod and a short rod, the bottom end of the cylinder is fixedly installed with the second motor, the output end of the second motor is installed with the rotating shaft, the outer wall of the rotating shaft is annularly installed with the stirring rod, and the short rod is installed below the stirring rod.

[0008] In order to guide the movement of the slider, the utility model has the following improvements: a fixing rod is fixedly installed on the upper part of the rectangular groove, a guide block is slidably installed on the fixing rod, a connecting plate is installed on the bottom end of the guide block, and the bottom wall of the connecting plate is fixedly connected to the top wall of the slider.

[0009] In order to facilitate cleaning of the side wall of the sedimentation tank, the utility model is improved in that a cleaning plate is fixedly mounted on one end of the stirring rod away from the rotating shaft, and bristles are arranged on the side wall of one end of the cleaning plate away from the stirring rod.

[0010] In order to prevent the rotating shaft from touching the bottom, the utility model is improved in that an elastic ball is installed on the bottom wall of the rotating shaft.

[0011] Preferably, the utility model is improved in that the second motor is a waterproof motor.

[0012] In order to ensure the stable support of the sedimentation tank body, the utility model is improved in that a plurality of supporting legs are installed at the bottom end of the sedimentation tank body.

[0013] In order to facilitate the discharge of treated water, the utility model is improved in that a drain pipe is installed on one side wall of the sedimentation tank body, and a control valve is installed on the drain pipe.

[0014] In order to facilitate the disassembly and assembly of the support frame, the utility model is improved in that the support frame and the sedimentation tank body are disassembled and connected by bolts.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a wastewater sedimentation tank for sewage treatment, which has the following beneficial effects:

[0017] The wastewater sedimentation tank for sewage treatment has an accelerating mixing device, and the output of the second motor drives the rotating shaft to rotate. The rotating shaft drives the stirring rod to rotate during the rotation process. The rotating motion of the stirring rod can produce a strong stirring effect, so that the medicine and the sewage are quickly mixed. Through stirring, the medicine can be more evenly dispersed in the sewage, avoiding the situation where the local concentration of the medicine is too high or too low. The rotating stirring rod can break the static laminar flow in the sewage, increase the turbulence and flow rate of the water flow, and can not only accelerate the mixing process, but also improve the uniformity of mixing, so that the medicine and the sewage are better integrated.

[0018] The wastewater sedimentation tank for sewage treatment has a moving device arranged so that the output end of the first motor drives the threaded rod to rotate, and the threaded rod drives the slider to move linearly, thereby driving the cylinder and the accelerating mixing device to move linearly back and forth on the sedimentation tank body, so that the accelerating mixing device can cover a larger area in the sedimentation tank body, reduce mixing dead angles, and improve the uniformity and consistency of wastewater treatment.

[0019] The wastewater sedimentation tank used for sewage treatment has a cleaning plate and bristles, and a stirring rod drives the cleaning plate to rotate, and brushes the tank wall with the bristles, so that foreign matters such as particles, fibers or other impurities can be removed in real time to keep the tank wall clean. The foreign matters brushed off re-enter the wastewater with the rotation of the stirring rod and the flow of liquid, and are mixed with the medicine, which helps to improve the efficiency and quality of wastewater treatment and ensure that the effluent water quality meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of a half-section three-dimensional structure of the support frame of the utility model;

[0022] Figure 3 For the utility model Figure 2 A schematic diagram of the structure at the local A of the enlarged part;

[0023] Figure 4 For the utility model Figure 2 An enlarged structural diagram of part B.

[0024] In the figure: 1. sedimentation tank body; 2. support frame; 3. threaded rod; 4. slider; 5. first motor; 6. rectangular groove; 7. cylinder; 8. second motor; 9. rotating shaft; 10. stirring rod; 11. short rod; 12. fixing rod; 13. guide block; 14. connecting plate; 15. cleaning plate; 16. bristles; 17. elastic ball; 18. supporting leg; 19. drain pipe; 20. control valve; 21. bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4A wastewater sedimentation tank for sewage treatment, comprising a sedimentation tank body 1, a support frame 2, a moving device and an accelerating mixing device, wherein the bottom wall of the sedimentation tank body 1 is designed to be inclined forward and backward, the support frame 2 is installed directly above the sedimentation tank body 1, the moving device comprises a threaded rod 3, a slider 4 and a first motor 5, a rectangular groove 6 is opened on the bottom wall of the support frame 2, the threaded rod 3 is rotatably installed in the lower part of the rectangular groove 6, one end of the threaded rod 3 passes through the side wall of the support frame 2 and the first motor 5 is installed, the slider 4 is installed on the threaded rod 3 through a bearing thread, the slider 4 is provided with a cylinder 7 at the bottom end, the accelerating mixing device comprises a second motor 8, a rotating shaft 9, a stirring rod 10 and a short rod 11, the second motor 8 is fixedly provided at the bottom end of the cylinder 7, the rotating shaft 9 is provided at the output end of the second motor 8, the stirring rod 10 is provided at the outer wall of the rotating shaft 9 in an annular shape, and the short rod 11 is provided below the stirring rod 10. In this embodiment, when in use, the supporting frame 2 is firstly installed above the sedimentation tank body 1, and then sewage is discharged into the sedimentation tank body 1, and an appropriate amount of medicine is added, and then the cylinder 7 drives the accelerating mixing device to descend and start The second motor 8, the output of the second motor 8 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the stirring rod 10 to rotate during the rotation process. The rotating movement of the stirring rod 10 can produce a strong stirring effect, so that the medicine and sewage are quickly mixed. Through stirring, the medicine can be more evenly dispersed in the sewage, avoiding the situation where the local concentration of the medicine is too high or too low. The rotating stirring rod 10 can break the static laminar flow in the sewage and increase the turbulence and flow rate of the water flow, which helps the medicine to diffuse faster throughout the sewage pool. The turbulence can not only accelerate the mixing process, but also improve the uniformity of the mixing, so that the medicine and sewage are better. The short rod 11 cooperates with the inclined bottom wall of the sedimentation tank body 1 to facilitate mixing and stirring of that area, and then the first motor 5 is started. The output end of the first motor 5 drives the threaded rod 3 to rotate. During the rotation, the threaded rod 3 drives the slider 4 to move linearly in the rectangular groove 6, which can drive the cylinder 7 and the accelerating mixing device to move back and forth linearly on the sedimentation tank body 1, so that the accelerating mixing device can cover a larger area in the sedimentation tank body 1, reducing the mixing dead angle, which means that every part of the wastewater can be effectively treated with the agent, thereby improving the uniformity and consistency of wastewater treatment.

[0027] In actual use, the movement of the slider 4 is further guided. In this embodiment, a fixed rod 12 is fixedly installed on the upper part of the rectangular groove 6, and a guide block 13 is slidably installed on the fixed rod 12. A connecting plate 14 is installed at the bottom end of the guide block 13. The bottom wall of the connecting plate 14 is fixedly connected to the top wall of the slider 4. During the movement of the slider 4, the connecting plate 14 drives the guide block 13 to slide on the fixed rod 12, thereby guiding the movement of the slider 4 and preventing the slider 4 from deviating from the moving trajectory.

[0028] In actual use, it is further convenient to clean the side wall of the sedimentation tank. In this embodiment, a cleaning plate 15 is fixedly installed on the end of the stirring rod 10 away from the rotating shaft 9, and bristles 16 are arranged on the side wall of the cleaning plate 15 away from the stirring rod 10. The stirring rod 10 drives the cleaning plate 15 to rotate, and brushes the pool wall with the bristles 16, which can remove foreign matter such as particles, fibers or other impurities in real time to keep the pool wall clean. This design can effectively prevent foreign matter in the wastewater from hanging on the wall. The brushed foreign matter re-enters the wastewater with the rotation of the stirring rod 10 and the flow of liquid, and mixes with the medicine. This means that these foreign matter have the opportunity to be treated with the medicine again, and may be further decomposed, transformed or removed, which helps to improve the efficiency and quality of wastewater treatment and ensure that the effluent water quality meets the requirements.

[0029] In actual use, in order to further prevent the rotating shaft 9 from touching the bottom, in this embodiment, an elastic ball 17 is installed on the bottom wall of the rotating shaft 9. The elastic ball 17 can prevent the rotating shaft 9 from touching the bottom during the descent process and prevent the bottom wall of the rotating shaft 9 from being damaged.

[0030] Preferably, in the present embodiment, the second motor 8 is a waterproof motor having special sealing materials and structural designs, and can work stably in humid or diving environments. This feature enables the second motor 8 to perform well in situations where it needs to work in water for a long time, and can effectively prevent water or moisture from entering the interior of the motor, thereby avoiding the risk of the motor getting damp and damaged.

[0031] In actual use, in order to further ensure the support stability of the sedimentation tank body 1, in this embodiment, a plurality of support legs 18 are installed at the bottom end of the sedimentation tank body 1. The support legs 18 can effectively support the weight of the sedimentation tank body 1 to ensure the stability of the entire structure. When subjected to external loads or vibrations, the support legs 18 can disperse and bear these forces to prevent the sedimentation tank from deformation or damage, thereby maintaining its normal and safe operation state.

[0032] In actual use, in order to further facilitate the discharge of treated water, in the present embodiment, a drain pipe 19 is installed on one side wall of the sedimentation tank body 1, and a control valve 20 is installed on the drain pipe 19. By adjusting the opening of the control valve 20, the discharge rate of water in the sedimentation tank can be accurately controlled to ensure that the water flow is within a suitable range, neither too fast to cause insufficient discharge nor too slow to affect the sedimentation efficiency.

[0033] In actual use, it is further convenient to disassemble and assemble the support frame 2. In this embodiment, the support frame 2 and the sedimentation tank body 1 are disassembled and connected by bolts 21. Due to the use of bolts 21, the connection between the support frame 2 and the sedimentation tank body 1 is detachable. This feature makes it easy to disassemble and reinstall the support frame 2 when the structure or function of the sedimentation tank needs to be adjusted, thereby improving the flexibility and adjustability of the structure.

[0034] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater sedimentation tank for sewage treatment, comprising a sedimentation tank body (1), a support frame (2), a moving device and an accelerating mixing device, characterized in that: The bottom wall of the sedimentation tank body (1) is designed to be inclined forward and backward. The support frame (2) is installed directly above the sedimentation tank body (1). The moving device comprises a threaded rod (3), a slider (4) and a first motor (5). The bottom wall of the support frame (2) is provided with a rectangular groove (6). The threaded rod (3) is rotatably installed in the lower part of the rectangular groove (6). One end of the threaded rod (3) passes through the side wall of the support frame (2) and the first motor (5) is installed thereon. The threaded rod (3) is provided with a bearing. The slider (4) is threadedly mounted, and a cylinder (7) is mounted at the bottom end of the slider (4). The accelerating mixing device comprises a second motor (8), a rotating shaft (9), a stirring rod (10) and a short rod (11). The second motor (8) is fixedly mounted at the bottom end of the cylinder (7), the rotating shaft (9) is mounted at the output end of the second motor (8), the stirring rod (10) is mounted in an annular shape on the outer wall of the rotating shaft (9), and the short rod (11) is mounted below the stirring rod (10).

2. A wastewater sedimentation tank for sewage treatment according to claim 1, characterized in that: A fixing rod (12) is fixedly mounted on the upper part of the rectangular groove (6), a guide block (13) is slidably mounted on the fixing rod (12), a connecting plate (14) is mounted on the bottom end of the guiding block (13), and the bottom wall of the connecting plate (14) is fixedly connected to the top wall of the sliding block (4).

3. A wastewater sedimentation tank for sewage treatment according to claim 2, characterized in that: A cleaning plate (15) is fixedly mounted on one end of the stirring rod (10) away from the rotating shaft (9), and bristles (16) are arranged on the side wall of one end of the cleaning plate (15) away from the stirring rod (10).

4. A wastewater sedimentation tank for sewage treatment according to claim 3, characterized in that: An elastic ball (17) is installed on the bottom wall of the rotating shaft (9).

5. A wastewater sedimentation tank for sewage treatment according to claim 4, characterized in that: The second motor (8) is a waterproof motor.

6. A wastewater sedimentation tank for sewage treatment according to claim 5, characterized in that: A plurality of supporting legs (18) are installed at the bottom end of the sedimentation tank body (1).

7. A wastewater sedimentation tank for sewage treatment according to claim 6, characterized in that: A drainage pipe (19) is installed on one side wall of the sedimentation tank body (1), and a control valve (20) is installed on the drainage pipe (19).

8. A wastewater sedimentation tank for sewage treatment according to claim 7, characterized in that: The support frame (2) and the sedimentation tank body (1) are connected and disassembled via bolts (21).

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