Multi-stage sewage filtering device

Abstract

The utility model provides a multistage sewage filtering device which comprises a sewage filtering tank, two annular fixing frames are arranged on the inner wall of the sewage filtering tank in the vertical direction, a filtering grating mechanism is arranged at the upper end of the upper fixing frame, and a filtering cloth mechanism is arranged at the upper end of the lower fixing frame. A rotating shaft is rotationally connected to the center in the sewage filtering tank, a driving motor in transmission connection with the rotating shaft is arranged at the top of the sewage filtering tank through a motor fixing seat, the rotating shaft extends into the sewage filtering tank and is sequentially mounted in the middles of the filtering grating mechanism and the filtering cloth mechanism, and two impurity discharging holes are formed in one side of the sewage filtering tank; by arranging the fixing frame, the filtering grating mechanism, the filtering cloth mechanism, the driving motor, the rotating shaft, the connecting plate, the collecting hole, the water pipe and the high-pressure water pump, when the filtering grating mechanism and the filtering cloth mechanism rotate, impurities enter the collecting hole through the connecting plate, high-pressure liquid washes the impurities, and then the impurities enter the discharging pipe from the impurity discharging hole to be discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to sedimentation tank technical field especially, relates to a kind of multi-stage filtration sewage filtering device. BACKGROUND

[0002] Sewage filtering device is used to remove suspended solids, particulate matter, colloids, organic matter and microorganism and other pollutants in sewage, widely used in sewage treatment plant, industrial wastewater treatment and other fields, sewage multi-stage filtration device is usually composed of multiple filtering units of different precision, remove pollutants step by step, existing sewage multi-stage filtration device also includes disinfection unit and sludge treatment unit etc., after long-term operation of filtering device, many impurities will accumulate on filtering unit, so that the filtering effect of filtering unit reduces, even causes that filtering device cannot operate, so it is necessary to clean the impurities on filtering unit periodically, the structure design of existing filtering device is very simple, when cleaning impurities, filtering device needs to be opened, then filtering unit is replaced or cleaned, this way not only consumes manpower but also is not convenient enough. SUMMARY

[0003] The utility model solves the problem that when cleaning impurities, filtering device needs to be opened, not only consumes manpower but also is not convenient enough.

[0004] In order to solve the above technical problem, the utility model provides a kind of multi-stage filtration sewage filtering device, including sewage filtering tank, the inner wall of sewage filtering tank is provided with two circular ring fixed frames in vertical direction, the upper fixed frame upper end is provided with filter grid mechanism, the lower fixed frame upper end is provided with filter cloth mechanism, sewage filtering tank inside center is rotatably connected with the shaft, sewage filtering tank top is provided with the driving motor of transmission connection with the shaft by motor fixing seat, the shaft extends to sewage filtering tank inside and is installed with the middle part of filter grid mechanism and filter cloth mechanism in proper order, sewage filtering tank one side is provided with two impurity discharge holes, two impurity discharge holes are respectively at the upper end of the edge of filter grid mechanism and filter cloth mechanism, the inner wall of sewage filtering tank is provided with the impurity gathering pipe that is communicated with impurity discharge hole, the number of impurity gathering pipe is two, two impurity gathering pipes one side is provided with collection hole, and two impurity gathering pipes are respectively parallel with the upper end of filter grid mechanism and filter cloth mechanism, two collection holes lower end are connected with the filter structure of the upper end of filter grid mechanism and filter cloth mechanism respectively by connecting plate, the inside of sewage filtering tank is provided with water pipe, one end of water pipe penetrates into impurity gathering pipe, the other end is communicated to the outside of sewage filtering tank, and is communicated with high-pressure water pump arranged in the outside of sewage filtering tank, the outside of sewage filtering tank is provided with two impurity discharge pipes that are communicated with two impurity discharge holes respectively.

[0005] Preferably, the upper end of the sewage filtering tank is communicated with a sewage inlet pipe, and the lower end of the sewage filtering tank is communicated with a sewage outlet pipe.

[0006] Preferably, the water pipe penetrating into one end of the impurity collecting pipe is communicated with a nozzle for spraying towards the impurity discharging hole.

[0007] Preferably, the impurity collecting pipe is internally provided with a filter screen covering the outside of the nozzle.

[0008] Preferably, the impurity collecting pipe is internally provided with a filter screen covering the outside of the nozzle.

[0009] Preferably, the filter grid mechanism comprises a filter grid body and a first support frame arranged at the bottom of the filter grid body, the filter cloth mechanism comprises a filter cloth body and a second support frame arranged at the bottom of the filter cloth body, the first support frame and the second support frame are respectively provided with first sliding guide rails and second sliding guide rails at the bottom, the first sliding guide rails and the second sliding guide rails are respectively slidably connected to the upper end of the fixed frame, and the rotating shaft is sequentially arranged at the center of the filter grid body and the filter cloth body.

[0010] Preferably, the filter grid body and the filter cloth body are cylindrical structures with the center being higher than the edge of the outer ring.

[0011] Preferably, the sewage filtering tank is provided with support legs at the bottom in the circumferential direction.

[0012] Preferably, the sewage filtering tank is provided with a dosing pipe at the top.

[0013] Preferably, the two impurity discharging pipes are provided with control valves.

[0014] Compared with the prior art, the multi-stage filtering sewage filtering device has the following beneficial effects:

[0015] 1、The fixed frame, the filter grid mechanism, the filter cloth mechanism, the driving motor, the rotating shaft, the connecting plate, the collecting hole, the water pipe and the high-pressure water pump are arranged, the filter grid mechanism and the filter cloth mechanism are arranged in the sewage filtering tank through the fixed frame, large impurities in the sewage are filtered through the filter grid mechanism, the sewage passing through the filter grid mechanism falls downwards to the filter cloth mechanism, the sewage is filtered through the filter cloth mechanism, the driving motor drives the rotating shaft to rotate, the rotating shaft drives the filter grid mechanism and the filter cloth mechanism to rotate, when the filter grid mechanism and the filter cloth mechanism rotate, the impurities at the upper end of the filter structure of the filter grid mechanism and the filter cloth mechanism are received, the impurities enter the collecting hole through the connecting plate, the high-pressure water pump transmits high-pressure liquid to the impurity collecting pipe through the water pipe, the impurities are washed away through the high-pressure liquid, the impurities enter the impurity discharging hole, and then are discharged from the discharging pipe, so that when the impurities are cleaned, the filtering device does not need to be opened, manpower is saved, and the problem that it is not convenient is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1It is the first schematic view of the main body structure of the utility model;

[0017] Figure 2 It is the second schematic view of the main body structure of the utility model;

[0018] Figure 3 It is the schematic view of the impurity gathering pipe structure of the utility model;

[0019] Figure 4 It is the schematic view of the water pipe and high pressure water pump connecting structure of the utility model;

[0020] Figure 5 It is the schematic view of the rotating shaft and filter grid mechanism, filter cloth mechanism connecting structure of the utility model.

[0021] In the drawing: 1, sewage filter tank; 2, fixed frame; 3, filter grid mechanism; 31, filter grid body; 32, first support frame; 33, first sliding guide rail; 4, filter cloth mechanism; 41, filter cloth body; 42, second support frame; 43, second sliding guide rail; 5, rotating shaft; 6, driving motor; 7, impurity discharge hole; 8, impurity gathering pipe; 9, collection hole; 10, connecting plate; 11, water pipe; 12, high pressure water pump; 13, impurity discharge pipe; 14, sewage inlet pipe; 15, sewage discharge pipe; 16, spray head; 17, filter screen; 18, fixed rod; 19, support leg; 20, dosing pipe; 21, control valve. DETAILED DESCRIPTION

[0022] The utility model relates to a kind of multi-stage filtration sewage filter device, such as Figures 1-5As shown, including sewage filter tank 1, the inner wall of sewage filter tank 1 is provided with two circular fixed frame 2 in the vertical direction, the upper fixed frame 2 is provided with filter grid mechanism 3 on the upper end, the lower fixed frame 2 is provided with filter cloth mechanism 4 on the upper end, the inside center of sewage filter tank 1 is rotatably connected with the rotating shaft 5, the top of sewage filter tank 1 is provided with the drive motor 6 connected with the rotating shaft 5 through the motor fixing seat, the rotating shaft 5 extends to the inside of sewage filter tank 1 and is sequentially mounted with the middle part of filter grid mechanism 3 and filter cloth mechanism 4, sewage filter tank 1 is provided with two impurity discharge holes 7, two impurity discharge holes 7 are respectively arranged at the upper end of the edge of filter grid mechanism 3 and filter cloth mechanism 4, the inner wall of sewage filter tank 1 is provided with impurity gathering pipe 8 communicated with impurity discharge hole 7, the number of impurity gathering pipe 8 is two, two impurity gathering pipes 9 are provided with collecting holes 9 on one side, and two impurity gathering pipes 9 are respectively parallel to the upper end of filter grid mechanism 3 and filter cloth mechanism 4, two collecting holes 9 are respectively connected with the filter structure of the upper end of filter grid mechanism 3 and filter cloth mechanism 4 through connecting plate 10, the inside of sewage filter tank 1 is provided with water pipe 11, one end of water pipe 11 penetrates into impurity gathering pipe 8, the other end penetrates to the outside of sewage filter tank 1, and is communicated with high-pressure water pump 12 arranged outside sewage filter tank 1, the outside of sewage filter tank 1 is provided with two impurity discharge pipes 13 communicated with two impurity discharge holes 7 respectively, by setting sewage filter tank 1 as the main body of sewage filter device, by setting fixed frame 2, filter grid mechanism 3 and filter cloth mechanism 4, filter grid mechanism 3 and filter cloth mechanism 4 are installed in the inside of sewage filter tank 1 through fixed frame 2, sewage is filtered through filter grid mechanism 3, the sewage passing through filter grid mechanism 3 falls downward to filter cloth mechanism 4, and the sewage is filtered through filter cloth mechanism 4, by setting drive motor 6, rotating shaft 5, drive motor 6 drives rotating shaft 5 to rotate, rotating shaft 5 drives filter grid mechanism 3 and filter cloth mechanism 4 to rotate, by setting connecting plate 10 and collecting hole 9, when filter grid mechanism 3 and filter cloth mechanism 4 rotate towards collecting hole 9, the impurities on the upper end of the filter structure of filter grid mechanism 3 and filter cloth mechanism 4 are received, so that the impurities enter collecting hole 9 through connecting plate 10, by setting water pipe 11 and high-pressure water pump 12, high-pressure water pump 12 transmits high-pressure liquid to impurity gathering pipe 8 through water pipe 11, the impurities are washed by high-pressure liquid, the impurities enter impurity discharge hole 7, and then are discharged from impurity discharge hole 7 to impurity discharge pipe 13, so that the problem that when the impurities are cleaned, the filter device needs to be opened, which not only consumes manpower but also is not convenient is solved.

[0023] In the embodiment of the utility model, sewage inlet pipe 14 is communicated with the upper end of sewage filter tank 1, sewage outlet pipe 15 is communicated with the lower end of sewage filter tank 1, sewage inlet pipe 14 is set, which is convenient for injecting sewage into sewage filter tank 1, sewage outlet pipe 15 is set, which is convenient for discharging the sewage filtered in the tank body.

[0024] In an embodiment of this utility model, the water pipe 11 is inserted into the impurity collection pipe 8 and one end is connected to a nozzle 16 that sprays towards the impurity discharge hole 7. By setting the nozzle 16, the liquid spraying speed is increased and the flushing effect is improved.

[0025] In an embodiment of this utility model, a filter screen 17 is provided inside the impurity collection tube 8 and covers the outside of the nozzle 16. By providing the filter screen 17, the protection effect on the nozzle 16 is enhanced.

[0026] In this embodiment of the invention, the impurity gathering tube 8 is installed on the side away from the collection hole 9 by a fixing rod 18 to the inner wall of the sewage filter tank 1. By setting the fixing rod 18, the stability of the impurity gathering tube 8 inside the sewage filter tank 1 is improved.

[0027] In an embodiment of this utility model, the filter grid mechanism 3 includes a filter grid body 31 and a first support frame 32 disposed at the bottom of the filter grid body 31. The filter cloth mechanism 4 includes a filter cloth body 41 and a second support frame 42 disposed at the bottom of the filter cloth body 41. The bottom of the first support frame 32 and the second support frame 42 are respectively provided with a first sliding guide rail 33 and a second sliding guide rail 43. The first sliding guide rail 33 and the second sliding guide rail 43 are slidably connected to the upper end of the fixed frame 2. By setting the filter grid body 31, the first support frame 32 and the first sliding guide rail 33, the bottom of the filter grid body 31 is installed with the first support frame 32, the bottom of the first support frame 32 is installed with the first sliding guide rail 33, the bottom of the filter cloth body 41 is installed with the second support frame 42, and the second support frame 42 is installed with the second sliding guide rail 43, thereby improving the stability of the filter grid mechanism 3 and the filter cloth mechanism 4.

[0028] In this embodiment of the utility model, the filter grid body 31 and the filter cloth body 41 are cylindrical structures with the center higher than the outer edge. By setting the filter grid body 31 and the filter cloth body 41 to be cylindrical structures with the center higher than the outer edge, it is easier for impurities to move to the inner wall edge of the sewage filter tank 1, and it is easier to improve the stability of the connection between the filter grid mechanism 3 and the filter cloth mechanism 4 and the sewage filter tank 1.

[0029] In an embodiment of this utility model, the bottom of the sewage filter tank 1 is provided with support legs 19 at equal intervals in the circumferential direction. By providing support legs 19, the stability of the sewage filter tank 1 when placed on the ground is facilitated.

[0030] In an embodiment of this utility model, a dosing pipe 20 is connected to the top of the sewage filter tank 1. By setting the dosing pipe 20, it is convenient to add chemical agents to the sewage filter tank 1.

[0031] In an embodiment of this utility model, control valves 21 are installed on the two impurity discharge pipes 13. By setting the control valves 21, it is convenient to control the opening and closing of the impurity discharge pipes 13.

[0032] In use, first, the sewage is injected into the sewage filter tank 1 through the sewage inlet pipe 14, the sewage is filtered by the large impurities through the filter grid mechanism 3, the sewage passing through the filter grid mechanism 3 falls downwards to the filter cloth mechanism 4, the sewage is filtered by the suspended solids through the filter cloth mechanism 4, the driving motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the filter grid body 31 and the filter cloth body 41 to rotate, the filter grid body 31 and the filter cloth body 41 drive the first sliding guide rail 33 and the second sliding guide rail 43 to slide on the fixed frame 2 through the first support frame 32 and the second support frame 42 respectively, when the filter grid mechanism 3 and the filter cloth mechanism 4 rotate, the connecting plate 10 receives the impurities on the upper end of the filter structure of the filter grid mechanism 3 and the filter cloth mechanism 4, so that the impurities enter the collecting hole 9 through the connecting plate 10, the high-pressure water pump 12 transmits the high-pressure liquid to the impurity gathering pipe 8 through the water pipe 11, the high-pressure liquid washes the impurities, so that the impurities enter the impurity discharging hole 7, and then are discharged from the impurity discharging hole 7 to the impurity discharging pipe 13.

[0033] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A multi-stage filtering sewage filtering device comprising a sewage filtering tank (1), characterized in that, The sewage filter tank (1) is provided with two circular fixed frames (2) in the vertical direction, the upper fixed frame (2) is provided with a filter grid mechanism (3) at the upper end, the lower fixed frame (2) is provided with a filter cloth mechanism (4) at the upper end, the sewage filter tank (1) is rotatably connected with a rotating shaft (5) in the center, the sewage filter tank (1) is provided with a drive motor (6) which is in transmission connection with the rotating shaft (5) through a motor fixing seat at the top, the rotating shaft (5) extends into the sewage filter tank (1) and is sequentially installed with the filter grid mechanism (3) and the filter cloth mechanism (4), two impurity discharge holes (7) are formed in one side of the sewage filter tank (1), the two impurity discharge holes (7) are respectively located at the upper ends of the edges of the filter grid mechanism (3) and the filter cloth mechanism (4), the inner wall of the sewage filter tank (1) is provided with impurity collecting pipes (8) which are in communication with the impurity discharge holes (7), the number of the impurity collecting pipes (8) is two, one side of each of the two impurity collecting pipes (8) is provided with a collecting hole (9), and the two impurity collecting pipes (8) are respectively parallel to the upper ends of the filter grid mechanism (3) and the filter cloth mechanism (4), the lower ends of the two collecting holes (9) are respectively connected with the filter structures at the upper ends of the filter grid mechanism (3) and the filter cloth mechanism (4) through connecting plates (10), the sewage filter tank (1) is provided with a water pipe (11) inside, one end of the water pipe (11) penetrates into the impurity collecting pipe (8), the other end penetrates through to the outside of the sewage filter tank (1) and is in communication with a high-pressure water pump (12) arranged outside the sewage filter tank (1), and the sewage filter tank (1) is provided with two impurity discharge pipes (13) which are respectively in communication with the two impurity discharge holes (7).

2. The multi-stage filtering sewage filtering device according to claim 1, characterized in that: The sewage filter tank (1) is provided with two circular fixed frames (2) in the vertical direction, the upper fixed frame (2) is provided with a filter grid mechanism (3) at the upper end, the lower fixed frame (2) is provided with a filter cloth mechanism (4) at the upper end, the sewage filter tank (1) is rotatably connected with a rotating shaft (5) in the center, the sewage filter tank (1) is provided with a drive motor (6) which is in transmission connection with the rotating shaft (5) through a motor fixing seat at the top, the rotating shaft (5) extends into the sewage filter tank (1) and is sequentially installed with the filter grid mechanism (3) and the filter cloth mechanism (4), two impurity discharge holes (7) are formed in one side of the sewage filter tank (1), the two impurity discharge holes (7) are respectively located at the upper ends of the edges of the filter grid mechanism (3) and the filter cloth mechanism (4), the inner wall of the sewage filter tank (1) is provided with impurity collecting pipes (8) which are in communication with the impurity discharge holes (7), the number of the impurity collecting pipes (8) is two, one side of each of the two impurity collecting pipes (8) is provided with a collecting hole (9), and the two impurity collecting pipes (8) are respectively parallel to the upper ends of the filter grid mechanism (3) and the filter cloth mechanism (4), the lower ends of the two collecting holes (9) are respectively connected with the filter structures at the upper ends of the filter grid mechanism (3) and the filter cloth mechanism (4) through connecting plates (10), the sewage filter tank (1) is provided with a water pipe (11) inside, one end of the water pipe (11) penetrates into the impurity collecting pipe (8), the other end penetrates through to the outside of the sewage filter tank (1) and is in communication with a high-pressure water pump (12) arranged outside the sewage filter tank (1), and the sewage filter tank (1) is provided with two impurity discharge pipes (13) which are respectively in communication with the two impurity discharge holes (7).

3. The multi-stage filtering sewage filtering device according to claim 1, characterized in that: The water pipe (11) is provided with a spray head (16) which sprays towards the impurity discharge hole (7) at one end penetrating into the impurity collecting pipe (8).

4. The multi-stage filtering sewage filtering device according to claim 3, characterized in that: The impurity collecting pipe (8) is provided with a filter screen (17) which is arranged outside the spray head (16) inside.

5. The multi-stage filtration sewage filtration device according to claim 1, characterized in that: The impurity collecting pipe (8) is installed with the sewage filter tank (1) through a fixing rod (18) at the side away from the collecting hole (9).

6. The multi-stage filtration sewage filtration device according to claim 1, characterized in that: The filter grid mechanism (3) comprises a filter grid body (31) and a first support frame (32) arranged at the bottom of the filter grid body (31), the filter cloth mechanism (4) comprises a filter cloth body (41) and a second support frame (42) arranged at the bottom of the filter cloth body (41), the first support frame (32) and the second support frame (42) are respectively provided with first sliding guide rails (33) and second sliding guide rails (43) at the bottom, the first sliding guide rails (33) and the second sliding guide rails (43) are respectively in sliding connection with the upper ends of the fixed frames (2), and the rotating shaft (5) is sequentially installed with the centers of the filter grid body (31) and the filter cloth body (41).

7. The multi-stage filtration sewage filtration device according to claim 6, characterized in that: The filter grid body (31) and the filter cloth body (41) are cylindrical structures with the center higher than the outer edge.

8. The multi-stage filtration device of claim 1, wherein: The sewage filter tank (1) is provided with support legs (19) which are equally spaced in the circumferential direction at the bottom.

9. The multi-stage filtration device of claim 1, wherein: The sewage filtering tank (1) is communicated with a dosing pipe (20) at the top.

10. The multi-stage filtration device of claim 1, wherein: Control valves (21) are installed on the two impurity discharge pipes (13).

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