Cleaning mechanism of drum filter

Abstract

The utility model provides a cleaning mechanism of a rotary drum filter, which comprises a rotary drum filter body arranged in a support frame and a cleaning mechanism which linearly reciprocates above a rotary drum of the rotary drum filter body, and the cleaning mechanism is composed of a speed reducing motor, a movable plate and a flushing pipe, two guide rods are symmetrically installed in the supporting frame and located above a rotary drum in the rotary drum filter body, the movable plate is connected to the two guide rods in a sliding mode, the flushing pipe is installed below the movable plate, a plurality of high-pressure flushing nozzles are distributed on the flushing pipe at equal intervals, a connecting rod is fixedly arranged at one end of the movable plate, and the connecting rod is connected with the movable plate. The other end of the connecting rod penetrates through the supporting frame in a sliding mode through a guide groove formed in the supporting frame, a connecting base is installed at the end, penetrating through the supporting frame in a sliding mode, of the connecting rod, a driving arm is hinged to the interior of the connecting base, the other end of the driving arm is connected into an eccentric wheel, and the eccentric wheel is installed on a power output shaft of a gear motor. The device has the advantages of improving the flushing effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of drum filters, in particular to a cleaning mechanism for drum filters. 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 beach aquaculture. China is one of the earliest countries in the world to develop freshwater fish farming. 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 rotary drum filter is required.

[0003] The 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] In the above technology, the drum is flushed by the flushing nozzles on the flushing water pipe, so that the impurities generated during filtration in the drum fall into the sewage hopper and are discharged from the drum. However, the position of the flushing pipe is fixed, and the flushing nozzles are arranged equidistantly. Therefore, there are gaps during flushing, and the surface of the drum cannot be completely flushed effectively. Therefore, there is room for improvement. Utility Model Content

[0005] The utility model provides a cleaning mechanism for 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 cleaning mechanism of a rotary drum filter, comprising a rotary drum filter body installed in a support frame, and a cleaning mechanism that performs linear reciprocating movement above the rotary drum in the rotary drum filter body, the cleaning mechanism being composed of a reduction motor, a movable plate, and a flushing pipe, two guide rods are symmetrically installed in the support frame above the rotary drum in the rotary drum filter body, the movable plate is slidably connected to the two guide rods, the flushing pipe is installed below the movable plate, and a plurality of high-pressure flushing nozzles are equidistantly arranged in the flushing pipe, a connecting rod is fixedly provided at one end of the movable plate, and the other end of the connecting rod slides through the support frame through a guide groove provided in the support frame, a connecting seat is installed at the end of the connecting rod that slides through the support frame, a driving arm is hinged in the connecting seat, and the other end of the driving arm is connected to an eccentric wheel, the eccentric wheel is installed on the power output shaft of the reduction motor, and the reduction motor is installed on the outside of the support frame.

[0007] Preferably, the spraying direction of the high-pressure flushing nozzle corresponds to a sewage discharge hopper provided inside the drum in the drum filter body.

[0008] Preferably, the distance that the cleaning mechanism performs linear reciprocating motion is half of the distance between the two high-pressure flushing nozzles.

[0009] Preferably: one end of the flushing pipe is connected to a water pump via a hose, and the water inlet end of the water pump is arranged below the drum in the drum filter via a pipeline.

[0010] The beneficial effects of adopting the above technical solution are:

[0011] The eccentric wheel is driven to rotate by the reduction motor, and then the connecting rod is driven to move back and forth in a straight line through the driving arm and the connecting seat, so that the movable plate can move back and forth in a straight line in the two guide rods, and the flushing pipe can move back and forth in a straight line. Since the distance of the linear reciprocating motion is half of the distance between the high-pressure nozzles, the high-pressure nozzle can fully flush the upper part of the drum in the rotary drum filter to prevent areas that cannot be flushed, thereby effectively improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A.

[0014] Among them: 1-support frame; 11-guide groove; 2-drum filter body; 21-drum; 3-cleaning mechanism; 31-reduction motor; 32-movable plate; 33-flushing pipe; 34-guide rod; 35-high-pressure flushing nozzle; 36-connecting rod; 37-connecting seat; 38-driving arm; 39-eccentric wheel; 4-water pump. DETAILED DESCRIPTION

[0015] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0016] 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.

[0017] 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.

[0018] like Figure 1-2In this embodiment, a cleaning mechanism of a drum filter comprises a drum filter body 2 installed in a support frame 1, and a cleaning mechanism 3 which moves linearly and reciprocatingly above a drum 21 in the drum filter body 2, wherein the cleaning mechanism 3 is composed of a reduction motor 31, a movable plate 32, and a flushing pipe 33. Two guide rods 34 are symmetrically installed above the drum 21 in the drum filter body 2 in the support frame 1, and the movable plate 32 is slidably connected to the two guide rods 34. The flushing pipe 33 is installed below the movable plate 32, and the flushing pipe 33 is installed below the movable plate 32. A number of high-pressure flushing nozzles 35 are evenly spaced in the washing pipe 33. A connecting rod 36 is fixedly provided at one end of the movable plate 32, and the other end of the connecting rod 36 slides through the support frame 1 through a guide groove 11 provided in the support frame 1. A connecting seat 37 is installed at the end of the connecting rod 36 that slides through the support frame 1. A driving arm 38 is hinged in the connecting seat 37, and the other end of the driving arm 38 is connected to an eccentric wheel 39. The eccentric wheel 39 is installed on the power output shaft of the reduction motor 31, and the reduction motor 31 is installed on the outside of the support frame 1.

[0019] Furthermore, the spraying direction of the high-pressure flushing nozzle 35 corresponds to the sewage hopper provided inside the drum 21 in the drum filter body 2, so as to ensure that when the high-pressure flushing nozzle 35 reversely flushes the drum 21, the impurities flushed down can fall into the sewage hopper, and then cooperate with the sewage discharge mechanism to discharge the impurities from the drum in the drum filter body 2. The sewage hopper is not shown in the figure, and the structure principles of the prior art structures and the patent documents in the background technology are basically the same.

[0020] Furthermore, the distance for the linear reciprocating movement of the cleaning mechanism 3 is half of the distance between the two high-pressure flushing nozzles 35 . By limiting the moving distance of the cleaning mechanism 3 , the high-pressure flushing nozzles 35 can fully flush the drum 21 in the drum filter body 2 .

[0021] Furthermore: one end of the flushing pipe 33 is connected to a water pump 4 through a hose, and the water inlet end of the water pump 4 is arranged below the drum 21 in the drum filter body 2 through a pipeline. The water filtered by the drum filter body 2 can be pumped out by the water pump 4 for flushing, thereby ensuring the stability of flushing without connecting to an external water source.

[0022] Working process: When in use, the drum 21 in the drum filter body 2 rotates, and the water pump 4 pumps the filtered water from the drum 21 into the flushing pipe 33, and flushes the surface of the drum 21 in the drum filter body 2 through the high-pressure flushing nozzle 35. At this time, the reduction motor 31 drives the eccentric wheel 39 to rotate, and the eccentric wheel 39 drives the connecting rod 36 to move linearly reciprocatingly under the restriction of the guide groove 11 in the support frame 1 through the driving arm 38, so that the movable plate 32 moves back and forth on the two guide rods 34, so the flushing pipe 33 reciprocates with the movable plate 32 above the drum 21, so as to cooperate with the rotation of the drum 21 to fully backwash the drum 21 and improve the flushing efficiency.

[0023] 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 cleaning mechanism for a drum filter, comprising a drum filter body mounted in a support frame, and a cleaning mechanism that moves linearly and reciprocatingly above a drum in the drum filter body, characterized in that: The cleaning mechanism is composed of a reduction motor, a movable plate, and a flushing pipe. Two guide rods are symmetrically installed in the support frame above the drum in the drum filter body. The movable plate is slidably connected to the two guide rods. The flushing pipe is installed below the movable plate, and a number of high-pressure flushing nozzles are evenly arranged in the flushing pipe. A connecting rod is fixed at one end of the movable plate, and the other end of the connecting rod slides through the support frame through a guide groove provided in the support frame. A connecting seat is installed at the end of the connecting rod that slides through the support frame. A driving arm is hinged in the connecting seat, and the other end of the driving arm is connected to the eccentric wheel. The eccentric wheel is installed on the power output shaft of the reduction motor, and the reduction motor is installed on the outside of the support frame.

2. A cleaning mechanism for a rotary drum filter according to claim 1, characterized in that: The spraying direction of the high-pressure flushing nozzle corresponds to the sewage discharge hopper provided inside the drum in the drum filter body.

3. A cleaning mechanism for a rotary drum filter according to claim 1, characterized in that: The distance that the cleaning mechanism performs linear reciprocating motion is half of the distance between the two high-pressure flushing nozzles.

4. A cleaning mechanism for a rotary drum filter according to claim 1, characterized in that: One end of the flushing pipe is connected to a water pump through a hose, and the water inlet end of the water pump is arranged below the drum in the drum filter through a pipeline.

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