Sewage treatment filtering device

Abstract

The utility model relates to a sewage treatment filtering device which comprises a filtering barrel, a filtering unit and a spraying unit for cleaning the filtering unit, the filtering barrel is provided with a first containing cavity, the filtering unit is rotationally arranged in the first containing cavity, and the filtering unit is provided with a plurality of flow guide pieces; a water inlet pipe is arranged at the top of the filtering barrel, the water inlet pipe extends into the first containing cavity to be close to the filtering unit, the filtering unit is rotationally connected to the water inlet pipe, and a water outlet of the water inlet pipe faces the flow guide part; sewage is sprayed to the flow guide piece from the water outlet of the water inlet pipe so as to push the filtering unit to rotate. According to the sewage treatment filtering device designed by the utility model, the energy consumption can be reduced while the filtering efficiency is improved, the use cost is saved, the filter screen can be simply and quickly cleaned, the shutdown cleaning time is shortened, and the utilization rate of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially relates to a sewage treatment filter device. BACKGROUND

[0002] Sewage treatment includes domestic sewage and some industrial wastewater, is removed through physical, chemical and biological process for pollutant, and produces treated wastewater enough to release to the environment safely, needs using sewage treatment filter device in the process of sewage treatment to the sundries in sewage carries out primary filtration, reduces the content of foreign matter in sewage. The existing filter device adopts the filter screen to carry out primary filtration, in order to accelerate filtration efficiency, adopts motor drive filter screen rotation to produce centrifugal effect, makes sewage and sundries fast separation, but this mode is big to the consumption of energy, and the use cost is higher, and the filter screen cleaning is troublesome, influences equipment use. UTILITY MODEL CONTENTS

[0003] In view of the above existing problem, the utility model aims at designing a sewage treatment filter device, can reduce the consumption of energy while improving filtration efficiency, save use cost, and can simply and quickly clean filter screen, reduce the time of shutdown cleaning, improve the operation rate of equipment.

[0004] The utility model discloses the purpose that realizes through the following technical scheme:

[0005] Design a sewage treatment filter device, including filter bucket, filter unit and be used for cleaning the spray unit of filter unit, the filter bucket is equipped with first cavity, the filter unit rotates and is equipped in first cavity, the filter unit is equipped with a plurality of flow guides, the filter bucket top is equipped with inlet pipe, the inlet pipe extends to be close to filter unit in first cavity, the filter unit is rotatably connected to inlet pipe, and the water outlet of inlet pipe faces flow guide, and sewage is sprayed to flow guide on the water outlet of inlet pipe to push filter unit rotation.

[0006] The sewage treatment filtering device designed in the scheme can separate sundries in sewage quickly through the high-speed rotation of the filtering unit to generate strong centrifugal force, and realize efficient filtration. Specifically, the water inlet pipe extends into the filtering barrel, and the water outlet thereof faces the flow guide piece on the filtering unit. Under the action of the high-pressure water pump, the sewage is sprayed from the water outlet of the water inlet pipe to the flow guide piece, so that the flow guide piece is subjected to a large scouring thrust, thereby pushing the filtering unit to rotate at high speed to generate centrifugal force for filtering the sewage. The filtered sewage flows into the first cavity, is collected and then discharged from the filtering barrel, and the sundries are intercepted and blocked by the filtering unit. In order to ensure that the filtering unit is not blocked by the sundries, the spraying unit is arranged to spray high-pressure water flow to the filtering unit at regular intervals to clean the filtering unit. Through the above scheme, the filtering unit is replaced by the mode of being driven to rotate by the motor, which can improve the filtering efficiency, reduce the energy consumption and save the use cost; and the filtering unit can be cleaned simply and quickly, the downtime for cleaning is reduced, and the equipment utilization rate is improved.

[0007] Further, the filtering unit comprises a filtering screen and first and second end plates connected to both ends of the filtering screen respectively, and the flow guide pieces are arranged in a circumferential array on the inner wall of the filtering screen, and the water inlet pipe penetrates through the first end plate to extend into the filtering screen.

[0008] The filtering screen adopts a conical cylindrical filtering screen, and the filtering screen is vertically arranged, and the diameter of the cylinder of the filtering screen gradually decreases from top to bottom. During the rotation of the filtering screen, the sewage and sundries slide down from top to bottom and are uniformly distributed on the filtering screen, thereby effectively improving the utilization rate of the filtering screen.

[0009] Further, the first end plate is provided with a first bearing member on the side away from the filtering screen, and the first bearing member is sleeved on the outer wall of the water inlet pipe.

[0010] A through hole is formed in the center of the first end plate, and the water inlet pipe penetrates through the through hole to extend into the filtering screen. The outer wall of the vertical part of the water inlet pipe is sleeved with the first bearing member, the inner ring of the first bearing member is fixedly connected with the outer wall of the water inlet pipe, and the outer ring of the first bearing member is fixed on the first end plate. Under the action of the scouring thrust, the filtering cylinder rotates around the water inlet pipe to form a centrifugal effect.

[0011] Further, the sealing plate located below the second end plate and the jacking drive located below the filtering barrel are further included, the output shaft of the jacking drive is rotatably connected with the sealing plate through the bottom of the filtering barrel, and the jacking drive can drive the sealing plate to ascend and descend to make the sealing plate abut against and separate from the second end plate.

[0012] The bottom of the filter screen is connected with the sundry collecting cavity of the filter barrel. When the filtering operation is performed, the jacking drive drives the sealing plate to ascend and abut against the second end plate, so that the bottom of the filter screen is sealed. After the sewage is filtered through the side wall of the filter screen, the sewage flows into the first cavity, but the sundries collected in the sundry collecting cavity do not flow from the bottom of the filter screen. When it is necessary to clean the sundries in the filter screen, the jacking drive drives the sealing plate to descend and separate from the second end plate, so that the sundries can be flushed into the sundry collecting cavity of the filter barrel and then discharged.

[0013] Further, the side, away from the second end plate, of the sealing plate is provided with a second bearing element, and the second bearing element is sleeved on the output shaft of the jacking drive.

[0014] The second bearing element is fixedly installed at the center position of the sealing plate, the output shaft of the jacking drive is sleeved on and fixed with the inner ring of the second bearing element, so that the sealing plate can rotate around the output shaft of the jacking drive. When the sealing plate abuts against the second end plate, the filter screen rotates, and the sealing plate can rotate together with the filter screen.

[0015] Further, the side, away from the filter screen, of the second end plate is provided with a first annular convex wall, and the diameter of the sealing plate is smaller than the inner diameter of the first annular convex wall.

[0016] The second end plate is provided with the first annular convex wall to surround the sealing plate, and the height of the first annular convex wall is greater than the descending height of the sealing plate. When the sealing plate is opened, the sundries are diffused and flowed out from the circumferential side of the sealing plate by the water flow, and the first annular convex wall blocks the water flow.

[0017] Further, the side, away from the filter screen, of the second end plate is provided with a second annular convex wall, and the position, opposite to the second annular convex wall, of the sealing plate is provided with an annular groove.

[0018] The second end plate and the sealing plate are provided with a matching structure, that is, the second end plate is provided with the second annular convex wall, and the sealing plate is provided with the annular groove. When the jacking drive drives the sealing plate to ascend and abut against the second end plate, the second annular convex wall is embedded in the annular groove, so as to ensure the airtightness between the second end plate and the sealing plate.

[0019] Further, the bottom of the filter barrel is provided with a partition baffle, the partition baffle and the second end plate jointly form a second cavity, and the sealing plate is located in the second cavity.

[0020] The partition baffle and the second end plate divide the filter barrel into two cavity regions, that is, a first cavity and a second cavity. The first cavity is a filtered sewage collecting cavity, and the second cavity is a sundry collecting cavity.

[0021] Further, the separation baffle comprises an inclined portion extending from the bottom of the filter barrel to the second end plate, and a horizontal portion connected with the inclined portion and horizontally extending to the first annular convex wall, and the horizontal portion is close to the first annular convex wall.

[0022] The edge of the second end plate is above the inclined portion, the horizontal portion is close to the first annular convex wall, and the filtered sewage is prevented from flowing into the second cavity from the gap between the horizontal portion and the first annular convex wall as far as possible, and the filtered sewage is collected at the bottom of the filter barrel by arranging the inclined separation baffle, so that the filtered sewage is conveniently discharged.

[0023] Further, the filter barrel further comprises a drainage pipe and a sewage pipe, the drainage pipe is communicated with the first cavity, and the sewage pipe is communicated with the second cavity.

[0024] The drainage pipe is communicated with the first cavity, and the filtered sewage flows into the next process from the drainage pipe; the sewage pipe is communicated with the second cavity, and when the sundries in the filter screen are cleaned, the sundries are discharged into the second cavity together with the sewage and discharged from the sewage pipe.

[0025] Compared with the prior art, the sewage treatment filter device has the following beneficial effects:

[0026] The sewage treatment filter device designed in the scheme can quickly separate sundries in the sewage by the high-speed rotation of the filter unit to realize efficient filtration. Specifically, the water inlet pipe extends into the filter barrel, and the water outlet of the water inlet pipe faces the flow guide piece on the filter unit. Under the action of the high-pressure water pump, the sewage is sprayed from the water outlet of the water inlet pipe to the flow guide piece, so that the flow guide piece is subjected to a large scouring thrust, thereby driving the filter unit to rotate at high speed to generate a centrifugal force for filtering the sewage. The filtered sewage flows into the first cavity, is collected and then discharged from the filter barrel, and the sundries are intercepted and blocked by the filter unit. In order to prevent the filter unit from being blocked by the sundries, the spraying unit is arranged to spray high-pressure water flow to the filter unit at regular time intervals to clean the filter unit. Through the above scheme, the filter unit is replaced by the mode of being driven to rotate by the motor, so that the filtration efficiency is improved, the energy consumption is reduced, the use cost is saved, the filter unit can be simply and quickly cleaned, the downtime for cleaning is reduced, and the equipment utilization rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a perspective view of the sewage treatment filter device according to an embodiment of the utility model.

[0028] Figure 2 It is a sectional view of the sewage treatment filter device according to an embodiment of the utility model.

[0029] Illustration: 1, filter barrel; 11, first cavity; 12, second cavity; 13, water inlet pipe; 14, drain pipe; 15, sewage pipe; 16, partition baffle; 161, inclined part; 162, horizontal part; 2, filter unit; 21, filter screen; 22, first end plate; 23, second end plate; 24, flow guide; 25, sealing plate; 26, jacking drive; 221, first bearing part; 231, first annular convex wall; 232, second annular convex wall; 251, second bearing part; 252, annular groove; 3, spraying unit. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein.

[0031] As Figure 1 and Figure 2As shown, the sewage treatment filter device provided by the embodiment includes a filter barrel 1 arranged vertically, a filter unit 2, and a spraying unit 3 for cleaning the filter unit 2. The filter barrel 1 is provided with a first cavity 11 which is a filtered sewage collecting cavity. A drain pipe 14 is arranged at the bottom of the filter barrel 1 and communicates with the first cavity 11. The filtered sewage flows into the next process from the drain pipe 14. The filter unit 2 is rotatably arranged in the first cavity 11. The filter unit 2 includes a conical cylindrical filter screen 21, a first end plate 22 and a second end plate 23 which are respectively connected and fixed at two ends of the filter screen 21. The filter screen 21 is arranged vertically. The barrel diameter of the filter screen 21 gradually decreases from top to bottom. A plurality of flow guides 24 are arranged in a circumferential array on the inner wall of the filter screen 21. The number of the flow guides 24 is arranged according to the barrel diameter of the filter screen 21. The filter barrel 1 is provided with a water inlet pipe 13. A through hole is formed at the center position of the first end plate 22. The water inlet pipe 13 passes through the through hole and enters the filter screen 21. The water outlet of the water inlet pipe 13 faces the flow guides 24. A first bearing member 221 is sleeved on the vertical part of the outer wall of the water inlet pipe 13. The inner ring of the first bearing member 221 is fixedly connected with the outer wall of the water inlet pipe 13. The outer ring of the first bearing member 221 is fixed on the first end plate 22. Under the action of the high-pressure water pump, the sewage is sprayed from the water outlet of the water inlet pipe 13 to the flow guides 24, so that the flow guides 24 are subjected to a large scouring thrust, thereby causing the filter screen 21 to rotate at high speed around the water inlet pipe 13 to generate a strong centrifugal force, so as to rapidly separate the sundries in the sewage. The filtered sewage flows into the first cavity 11 and is discharged from the drain pipe 14 after being collected. The sundries are intercepted and blocked by the filter screen 21. The filter screen 21 adopts a conical cylindrical filter screen. The barrel diameter of the filter screen 21 gradually decreases from top to bottom. During the rotation of the filter screen 21, the sewage and sundries slide from top to bottom and are uniformly distributed on the filter screen 21, thereby effectively improving the utilization rate of the filter screen 21. Through the above design, the mode that the filter screen 21 is driven to rotate by the motor is replaced. The energy consumption is reduced and the use cost is saved while the filtration efficiency is improved.

[0032] As shown, Figure 1 In order to ensure that the filter screen 21 is not blocked by the sundries, the spraying unit 3 is arranged between the inner wall of the filter barrel 1 and the filter screen 21. The spraying unit 3 sprays high-pressure water flow to the filter screen 21 at regular time to perform scouring and cleaning. The water inlet pipe 13 not only communicates with the sewage inlet pipe, but also communicates with the flushing water inlet pipe. When the filter screen 21 needs to be cleaned, the sewage inlet pipe is closed and the flushing water inlet pipe is started. During the rotation of the filter screen 21, the spraying unit 3 sprays high-pressure water flow to the filter screen 21 to flush the sundries attached to the filter screen 21 to the bottom of the filter screen 21.

[0033] As shown, Figure 2As shown, the filtering unit 2 further comprises a sealing plate 25 located below the second end plate 23 and a jacking driving member 26 located below the filtering barrel 1, the bottom of the filtering barrel 1 is provided with a partition baffle 16, the second end plate 23 and the partition baffle 16 jointly form a second cavity 12, the sealing plate 25 is located in the second cavity 12, the second cavity 12 is a sundry collecting cavity, and the bottom of the filtering barrel 1 is provided with a blowdown pipe 15 communicating with the second cavity 12. The output shaft of the jacking driving member 26 is rotationally connected with the sealing plate 25 through the bottom of the filtering barrel 1, the jacking driving member 26 can drive the sealing plate 25 to ascend and descend so as to abut against and separate from the second end plate 23, and in the embodiment, the jacking driving member 26 is a driving cylinder. When the filtering operation is performed, the jacking driving member 26 drives the sealing plate 25 to ascend and abut against the second end plate 23, so that the bottom of the filter screen 21 is sealed, and the sewage flows into the first cavity 11 after being filtered by the sidewall of the filter screen 21, instead of flowing into the second cavity 12 from the bottom of the filter screen 21. When it is necessary to clean the sundries in the filter screen 21, the jacking driving member 26 drives the sealing plate 25 to descend and separate from the second end plate 23, the flushing water flushes the sundries into the second cavity 12, and then the sundries are discharged from the blowdown pipe 15.

[0034] As shown in Figure 2 the center of the sealing plate 25 is fixedly installed with a second bearing member 251, and the output shaft of the jacking driving member 26 is sleeved on the inner ring of the second bearing member 251 and fixed thereto, so that the sealing plate 25 can rotate around the output shaft of the jacking driving member 26. When the sealing plate 25 abuts against the second end plate 23, the filter screen 21 rotates, and the sealing plate 25 can rotate together with the filter screen 21.

[0035] As shown in Figure 2 the side of the second end plate 23 away from the filter screen 21 is provided with a first annular convex wall 231, and the diameter of the sealing plate 25 is smaller than the inner diameter of the first annular convex wall 231. The first annular convex wall 231 surrounds the sealing plate 25, and the height of the first annular convex wall 231 is greater than the descending height of the sealing plate 25. When the sealing plate 25 is opened, the flushing water flow drives the sundries to spread out from the circumferential side of the sealing plate 25, and the first annular convex wall 231 blocks the water flow. In addition, the side of the second end plate 23 away from the filter screen 21 is further provided with a second annular convex wall 232, and the position of the sealing plate 25 opposite to the second annular convex wall 232 is provided with an annular groove 252. When the jacking driving member 26 drives the sealing plate 25 to ascend and abut against the second end plate 23, the second annular convex wall 232 is embedded in the annular groove 252, so as to ensure the airtightness between the second end plate 23 and the sealing plate 25.

[0036] As shown in Figure 2As shown, the partition baffle 16 comprises an inclined portion 161 extending obliquely from the bottom of the filter barrel 1 to the second end plate 23, and a horizontal portion 162 connected with the inclined portion 161 and extending horizontally to the first annular convex wall 231, the horizontal portion 162 being close to the first annular convex wall 231. The edge of the second end plate 23 is above the inclined portion 161, and the horizontal portion 162 is close to the first annular convex wall 231, so as to avoid the filtered sewage flowing into the second cavity 12 from the gap between the horizontal portion 162 and the first annular convex wall 231 as much as possible, and the inclined partition baffle 16 is arranged to collect the filtered sewage at the bottom of the filter barrel 1, and facilitate the discharge from the drain pipe 14.

[0037] In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In addition, the terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment filtering device comprising a filtering barrel, characterized in that, The filter unit and a spraying unit for cleaning the filter unit are also included; the filter barrel is provided with a first cavity, and the filter unit is rotatably arranged in the first cavity; the filter unit is provided with a plurality of flow guides; the top of the filter barrel is provided with a water inlet pipe extending into the first cavity to be close to the filter unit; the water inlet pipe is rotatably connected to the filter unit, and the water outlet of the water inlet pipe faces the flow guides, so that sewage is sprayed from the water outlet of the water inlet pipe to the flow guides to drive the filter unit to rotate.

2. The sewage treatment filter device according to claim 1, characterized in that, The filter unit includes a filter screen and first and second end plates connected to both ends of the filter screen respectively; the circumferential array of flow guides is arranged on the inner wall of the filter screen; and the water inlet pipe penetrates through the first end plate to extend into the filter screen.

3. The sewage treatment filter device according to claim 2, characterized in that The side of the first end plate away from the filter screen is provided with a first bearing element sleeved on the outer wall of the water inlet pipe.

4. The sewage treatment filter device according to claim 2, characterized in that, A sealing plate located below the second end plate and a jacking drive located below the filter barrel are also included; the output shaft of the jacking drive is rotatably connected to the sealing plate through the bottom of the filter barrel; and the jacking drive can drive the sealing plate to ascend and descend to make the sealing plate abut against and separate from the second end plate.

5. The sewage treatment filter device according to claim 4, characterized in that The side of the sealing plate away from the second end plate is provided with a second bearing element sleeved on the output shaft of the jacking drive.

6. The sewage treatment filter device according to claim 4, characterized in that The side of the second end plate away from the filter screen is provided with a first annular convex wall, and the diameter of the sealing plate is smaller than the inner diameter of the first annular convex wall.

7. The sewage treatment filter apparatus of claim 4, wherein, The side of the second end plate away from the filter screen is provided with a second annular convex wall, and the sealing plate is provided with an annular groove at a position opposite to the second annular convex wall.

8. The sewage treatment filter device according to claim 6, characterized in that The bottom of the filter barrel is provided with a partition baffle, and the partition baffle and the second end plate jointly form a second cavity; and the sealing plate is located in the second cavity.

9. The sewage treatment filter apparatus of claim 8, wherein, The partition baffle includes an inclined portion inclinedly extending from the bottom of the filter barrel to the second end plate and a horizontal portion connected to the inclined portion and horizontally extending to the first annular convex wall; and the horizontal portion is close to the first annular convex wall.

10. The sewage treatment filter apparatus of claim 8, wherein, The filter barrel also includes a drain pipe and a sewage pipe; the drain pipe communicates with the first cavity; and the sewage pipe communicates with the second cavity.

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