Pollution discharge mechanism of rotary drum filter

Abstract

The utility model provides a drum filter's blowdown mechanism, including drum filter body and connecting the blowdown mechanism of the blowdown pipe in drum filter body, the blowdown mechanism is composed of blowdown tank, filter screen cylinder, motor, the inside of blowdown tank is communicated with the blowdown pipe in drum filter body, the motor is provided at the top of blowdown tank, the filter screen cylinder is connected with the blowdown tank, and the filter screen cylinder is connected with the motor. The power output shaft is arranged in the pollution discharge tank, the filter screen cylinder is fixedly installed in the pollution discharge tank, the axis of the top of the filter screen cylinder is rotationally connected with the power output shaft of the motor, a water outlet pipe communicated with the interior of the filter screen cylinder is fixedly arranged at the axis of the bottom of the filter screen cylinder, and the water outlet pipe is fixedly connected to the bottom in the pollution discharge tank; two symmetrical stirring rods are arranged on the two sides of the filter screen cylinder in the pollution discharge tank, the top ends of the stirring rods are fixedly connected to a power output shaft of the motor through connecting pieces, and the lower ends of the stirring rods are rotationally connected to the water outlet pipe through connecting pieces. The device has the advantages of preventing water resource waste and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of drum filters, in particular to a sewage discharge mechanism of a drum filter. Background Art

[0002] Aquaculture is a production business that uses suitable waters to breed aquatic economic animals and plants. Fisheries are an important part of it. Aquaculture can be divided into freshwater aquaculture, seawater aquaculture, and shallow sea flat aquaculture. In long-term production practice, people have accumulated rich experience and technology in fish farming. To raise fish, you must first raise water. Water is the environment for fish to survive. Better water quality can reduce the occurrence of fish diseases and is more conducive to the growth and survival of fish. In freshwater aquaculture, the fish pond needs to be treated regularly to improve the water quality of the fish pond. For this purpose, a drum filter is required.

[0003] China Patent Network discloses a fish pond drum filter (publication number: CN 214758672U), which includes a hollow drum and a rotating device. The drum is driven by the rotating device. The inner wall of the drum is provided with a plurality of ribs parallel to the axis of the drum. The ribs are provided with elastic baffles away from the inner wall of the drum. The elastic baffles extending out of the ribs are installed on the ribs so that when the drum rotates, the dirt entering the drum can be blocked by the ribs and the elastic baffles as the drum rotates, and the dirt will not fall into the bottom of the drum, so the filtering effect is better and the efficiency is higher.

[0004] It can be seen from the above technology that the rotary drum filter currently used in aquaculture directly discharges the dirt and water received in the sewage hopper out of the drum when discharging sewage. Although the sewage discharge is effective, since the sewage hopper collects not only dirt but also water, the discharge of water and dirt together can easily cause a waste of water resources, so there is room for improvement. Utility Model Content

[0005] The utility model provides a sewage discharge mechanism of a rotary drum filter to solve the problems raised in the background technology.

[0006] In order to solve the above problems, the utility model provides a sewage discharge mechanism of a rotary drum filter, comprising a rotary drum filter body and a sewage discharge mechanism connected to a sewage discharge pipe in the rotary drum filter body, the sewage discharge mechanism is composed of a sewage discharge tank, a filter screen cylinder, and a motor, the interior of the sewage discharge tank is connected to the sewage discharge pipe in the rotary drum filter body, the motor is arranged at the top of the sewage discharge tank, and the power output shaft is arranged in the sewage discharge tank, the filter screen cylinder is fixedly installed in the sewage discharge tank, and the axis center of the top of the filter screen cylinder is rotatably connected to the power output shaft of the motor, and a water outlet pipe communicating with the interior of the filter screen cylinder is fixedly provided at the bottom axis center, the water outlet pipe is fixedly connected to the bottom of the sewage discharge tank, and the water outlet of the water outlet pipe is arranged outside the bottom end of the sewage discharge tank, and two symmetrical stirring rods are arranged on both sides of the filter screen cylinder in the sewage discharge tank, the top end of the stirring rod is fixedly connected to the power output shaft of the motor through a connecting piece, and the lower end of the stirring rod is rotatably connected to the water outlet pipe through a connecting piece.

[0007] Preferably, a first brush is provided on a side surface of the stirring rod close to the filter screen cylinder, and the first brush is in contact with the surface of the filter screen cylinder.

[0008] Preferably, a second brush symmetrical to the first brush is provided on a side surface of the stirring rod close to the inner wall of the sewage tank, and the second brush is in conflict with the inner wall of the sewage tank.

[0009] Preferably, the bottom of the sewage tank is bucket-shaped, and a drainage pipe communicating with the interior of the sewage tank is provided in the side of the bucket.

[0010] Preferably, the water outlet of the water outlet pipe is connected to the drum filter body through a pipeline.

[0011] The beneficial effects of adopting the above technical solution are:

[0012] 1. The impurities and sewage discharged from the drum filter through the sewage pipe enter the sewage tank in the sewage discharge mechanism, and then the water enters the filter cylinder through the filter mesh holes of the filter cylinder. The impurities are intercepted outside the filter cylinder in the sewage tank, and the filtered water flows back to the filter body through the outlet pipe and the pipeline, so that the impurities and water are separated to reduce the waste of water resources.

[0013] 2. When it is necessary to clean and discharge the surface of the filter cylinder and the inside of the sewage tank, the motor drives the two stirring rods to rotate, so that the first brush cleans the surface of the filter cylinder to prevent the filter cylinder from being blocked, and the second brush cleans the inner wall of the sewage tank so that the impurities contaminated inside the sewage tank are swept away, and then the valve of the discharge pipe is opened to discharge the sewage and trapped impurities generated during cleaning from the sewage tank, so that the sewage discharge mechanism can be used stably and continuously, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the sewage discharge mechanism of the utility model.

[0016] Among them: 1-drum filter body; 11-drain pipe; 2-drain mechanism; 21-drain tank; 22-filter screen; 23-motor; 24-water outlet pipe; 25-stirring rod; 26-first brush; 27-second brush; 28-drain pipe. DETAILED DESCRIPTION

[0017] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0018] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a movable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-2In this embodiment, a sewage discharge mechanism of a rotary drum filter includes a rotary drum filter body and a sewage discharge mechanism 2 connected to a sewage discharge pipe 11 in the rotary drum filter body 1. The sewage discharge mechanism 2 is composed of a sewage discharge tank 21, a filter screen cylinder 22, and a motor 23. The interior of the sewage discharge tank 21 is connected to the sewage discharge pipe 11 in the rotary drum filter body 1. The motor 23 is arranged at the top of the sewage discharge tank 21, and the power output shaft is arranged in the sewage discharge tank 21. The filter screen cylinder 22 is fixedly installed in the sewage discharge tank 21, and the top shaft of the filter screen cylinder 22 The center of the sewage tank 21 is rotatably connected to the power output shaft of the motor 23, and a water outlet pipe 24 connected to the inside of the filter screen cylinder 22 is fixedly provided at the bottom axis center. The water outlet pipe 24 is fixedly connected to the bottom of the sewage tank 21, and the water outlet of the water outlet pipe 24 is arranged outside the bottom end of the sewage tank 21. Two symmetrical stirring rods 25 are arranged on both sides of the filter screen cylinder 22 in the sewage tank 21. The top end of the stirring rod 25 is fixedly connected to the power output shaft of the motor 23 through a connecting piece, and the lower end of the stirring rod 25 is rotatably connected to the water outlet pipe 24 through a connecting piece.

[0021] Furthermore, a first brush 26 is provided on a side of the stirring rod 25 near the filter screen cylinder 22, and the first brush 26 contacts the surface of the filter screen cylinder 22, so as to clean the surface of the filter screen cylinder 22 and prevent blockage, thereby ensuring effective separation of water and impurities.

[0022] Furthermore, a second brush 27 symmetrical to the first brush 26 is provided on a side surface of the stirring rod 25 near the inner wall of the sewage tank 21, and the second brush 27 is in contact with the inner wall of the sewage tank 21, so as to facilitate cleaning of the inner wall of the sewage tank 21 and prevent the separated solid impurities from adhering to the inner wall of the sewage tank 21, thereby ensuring the cleanliness of the inner wall of the sewage tank 21 and preventing the growth of bacteria.

[0023] Furthermore, the bottom of the sewage tank 21 is bucket-shaped, and a discharge pipe 28 connected to the interior of the sewage tank 21 is provided in the side of the bucket, so as to facilitate the discharge of impurities separated in the sewage tank 21 from the sewage tank 21 and ensure the stability of the operation of the sewage discharge mechanism 2.

[0024] Furthermore, the water outlet of the water outlet pipe 24 is connected to the drum filter body 1 through a pipeline, so that the water separated from the solid impurities can flow back into the drum filter body 1, thereby preventing the waste of water resources.

[0025] Working process: the sewage bucket in the drum filter body 1 receives the impurities in the mixed water, and then sends them into the sewage tank 21 in the sewage discharge mechanism 2 through the sewage pipe 11, the water flows into the inside of the filter mesh cylinder 22, and the solid impurities are trapped outside the filter mesh cylinder 22 and located in the sewage tank 21. After being filtered and separated by the filter mesh cylinder 22, the water is discharged through the outlet pipe 24 connected to the inside of the filter mesh cylinder 22, and then flows back into the drum filter body 1 to prevent the waste of water resources. When it is necessary to clean the surface of the filter mesh cylinder 22 or the inside of the filter tank 21, the motor 23 in the sewage discharge mechanism 2 is driven to drive the two symmetrical stirring rods 25 to rotate in the sewage tank 21, and the first brush 26 cleans the outer surface of the filter mesh cylinder 22, so that the impurities adhering to the surface of the filter mesh cylinder 22 are swept off, the filter mesh cylinder 22 is prevented from being blocked, and the stability of the separation of water and solid impurities is improved. Qualitatively, the second brush 27 cleans the inner wall of the sewage tank 21, and then the impurities adhered to the inner wall of the sewage tank 21 can be swept off to ensure the cleanliness of the inner wall and prevent long-term adhesion and breeding of bacteria. The impurities trapped in the sewage tank 21 can be stirred up and mixed with water as the stirring rod 25 rotates, and then the valve in the drainage pipe 28 is opened to discharge the water mixed with impurities in the sewage tank 21 out of the sewage tank 21, which can discharge the impurities trapped inside the sewage tank 21 and prevent the drainage pipe 28 from being blocked. The motor 23 is started once every time period to clean the surface of the filter mesh cylinder 22, effectively preventing the filter mesh cylinder 22 from being blocked. At the same time, according to the interception of impurities inside the filter tank 21, the valve in the drainage pipe 28 is opened once to discharge the water mixed with impurities inside, thereby improving the continuity of equipment operation.

[0026] Finally, it should be noted that the above implementation cases are only used to illustrate the present invention, rather than to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention; technologies not described in detail in the present invention are implemented with existing technologies.

Claims

1. A sewage discharge mechanism of a drum filter, comprising a drum filter body and a sewage discharge mechanism connected to a sewage discharge pipe in the drum filter body, characterized in that: The sewage discharge mechanism is composed of a sewage discharge tank, a filter screen cylinder, and a motor. The interior of the sewage discharge tank is connected to the sewage discharge pipe in the rotary drum filter body. The motor is arranged at the top of the sewage discharge tank, and the power output shaft is arranged in the sewage discharge tank. The filter screen cylinder is fixedly installed in the sewage discharge tank, and the top axis of the filter screen cylinder is rotatably connected to the power output shaft of the motor. An outlet pipe connected to the interior of the filter screen cylinder is fixedly provided at the bottom axis. The outlet pipe is fixedly connected to the bottom of the sewage discharge tank, and the water outlet of the outlet pipe is arranged outside the bottom end of the sewage discharge tank. Two symmetrical stirring rods are arranged on both sides of the filter screen cylinder in the sewage discharge tank. The top end of the stirring rod is fixedly connected to the power output shaft of the motor through a connecting piece, and the lower end of the stirring rod is rotatably connected to the outlet pipe through a connecting piece.

2. The sewage discharge mechanism of a rotary drum filter according to claim 1, characterized in that: A first brush is arranged on a side surface of the stirring rod close to the filter screen cylinder, and the first brush contacts the surface of the filter screen cylinder.

3. The sewage discharge mechanism of the rotary drum filter according to claim 1, characterized in that: A second brush symmetrical to the first brush is arranged on a side surface of the stirring rod close to the inner wall of the sewage tank, and the second brush contacts the inner wall of the sewage tank.

4. The sewage discharge mechanism of the rotary drum filter according to claim 1, characterized in that: The bottom of the sewage tank is bucket-shaped, and a drainage pipe communicating with the interior of the sewage tank is arranged on the side of the bucket.

5. The sewage discharge mechanism of the rotary drum filter according to claim 1, characterized in that: The water outlet of the water outlet pipe is connected to the drum filter body through a pipeline.

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