CN116899311B - Sewage prefilter and filtering method - Google Patents

Sewage prefilter and filtering method Download PDF

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Publication number
CN116899311B
CN116899311B CN202311167676.5A CN202311167676A CN116899311B CN 116899311 B CN116899311 B CN 116899311B CN 202311167676 A CN202311167676 A CN 202311167676A CN 116899311 B CN116899311 B CN 116899311B
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CN
China
Prior art keywords
water
box
wall
filter
sewage
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Application number
CN202311167676.5A
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Chinese (zh)
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CN116899311A (en
Inventor
秦淦
张淑鹏
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Shanxi Guangyu Chemical New Materials Technology Co ltd
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Shanxi Guangyu Chemical New Materials Technology Co ltd
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Priority to CN202311167676.5A priority Critical patent/CN116899311B/en
Publication of CN116899311A publication Critical patent/CN116899311A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/906Special treatment of the feed stream before contacting the filtering element, e.g. cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks

Abstract

The application provides a sewage prefilter and a filtering method. A sewage prefilter device comprising: the embedded box is formed by welding iron plates, a storage box and a water storage tank are fixedly arranged in the embedded box, a material collecting frame is arranged in the storage box, a water blocking frame is fixedly arranged at the top of the embedded box, the width of the water blocking frame is identical to that of the embedded box, a crushing frame is fixedly arranged on the inner wall of the top of the embedded box, a crushing mechanism is arranged on the crushing frame, a water receiving bucket is fixedly arranged at the bottom of the crushing frame, a filter bucket is fixedly arranged on the inner wall of the water receiving bucket, the bottom end of the filter bucket extends to the lower part of the water receiving bucket, a plurality of second filter holes are formed in the inner wall of the filter bucket, and a small material conveyor is arranged in the embedded box, and one end of the small material conveyor is positioned below the filter bucket. The sewage prefilter and the filtering method provided by the application have the advantages of comprehensive filtering, good filtering effect and convenience in cleaning.

Description

Sewage prefilter and filtering method
Technical Field
The application relates to the technical field of sewage prefilter equipment, in particular to a sewage prefilter and a sewage prefilter method.
Background
A large amount of sewage can be generated in the living process of people, a large amount of sewage can be generated in the industrial production process, the sewage can have a large influence on the living environment of people, the living environment of people can be seriously harmed, in order to prevent or eliminate the harm, and meanwhile, the living environment quality of people is improved, the sewage needs to be conveyed to a sewage treatment station for treatment, and most of the sewage conveying methods nowadays are carried out through a sewer.
In the sewage conveying process, the sewage can carry some waste garbage in people's life or industrial production rubbish, and these rubbish flows along with sewage in the sewer, however the inner wall of sewer is generally comparatively coarse, and the in-process of coarse inner wall and the contact of rubbish impurity in the sewage can influence the flow of rubbish impurity, makes rubbish impurity form in the sewer easily and piles up, influences the normal flow of sewer, and still need dredge through professional when the sewer is blocked, and is consuming time and power.
Therefore, it is necessary to provide a sewage prefilter and a filtering method for solving the above technical problems.
Disclosure of Invention
The application solves the technical problem of providing the sewage prefilter which has comprehensive filtration, good filtration effect and convenient cleaning.
In order to solve the technical problems, the sewage prefilter and the filtering method provided by the application comprise the following steps: the water storage tank is characterized by comprising an embedded box, wherein the embedded box is formed by welding iron plates, a material storage box and a water storage tank are fixedly arranged in the embedded box, a water blocking frame is fixedly arranged at the top of the embedded box, the width of the water blocking frame is the same as that of the embedded box, a crushing frame is fixedly arranged on the inner wall of the top of the embedded box, a crushing mechanism is arranged on the crushing frame, a water receiving bucket is fixedly arranged at the bottom of the crushing frame, a filter hopper is fixedly arranged on the inner wall of the water receiving bucket, the bottom end of the filter hopper extends to the lower part of the water receiving bucket, a plurality of second filter holes are formed in the inner wall of the filter hopper, a small material conveyor is arranged in the embedded box, one end of the small material conveyor is positioned below the filter hopper, the other end of the small material conveyor extends into the material storage box, a second water conveying pipe is fixedly arranged on the outer wall of the water receiving box, the other end of the second water conveying pipe is communicated with the inner wall of the embedded box, a baffle is fixedly arranged on the outer wall of the water receiving bucket, a second water blocking plate is fixedly arranged on the outer wall of the water receiving bucket, two water blocking plates are fixedly arranged on the two water inlet pipes are fixedly arranged on the two water blocking plates of the water storage tank, and the two water blocking plates are fixedly arranged on the two water inlet pipes are fixedly arranged on the two water storage tank and are fixedly connected with the water inlet pipe; the water collecting device comprises a water storage tank, a water collecting box, a water outlet pipe and a water storage tank, wherein the water collecting box is fixedly installed on the inner wall of the bottom of the embedded box, the water collecting box is arranged at the top of the water storage tank, the water filtering tank is arranged on the inner wall of the bottom of the material collecting box, a water conveying pipe I is fixedly installed at the top of the water conveying pipe I and communicated with the water filtering tank, a water conveying pump is fixedly installed on the outer wall of one side of the partition plate, a water inlet pipe I is fixedly installed at the water inlet of the water conveying pump, the other end of the water inlet pipe I is communicated with the water storage tank, a water outlet pipe I is fixedly installed at the water outlet of the water conveying pump, and the other end of the water outlet pipe I is communicated with the water storage tank; the filter plate is characterized in that a suction fan, a filter box and a purifying box are fixedly arranged on the outer wall of one side of the partition plate, an air inlet port on the suction fan is communicated with the filter box, an air outlet port on the suction fan is communicated with the purifying box, an air inlet pipe is fixedly arranged on the outer wall of one side of the filter box, the other end of the air inlet pipe is communicated with the storage box, an exhaust pipe is fixedly arranged on the outer wall of one side of the purifying box, the other end of the exhaust pipe extends to the upper part of the pre-buried box, a filter plate is fixedly arranged on the inner wall of the filter box, two activated carbon adsorption plates are arranged on the inner wall of the purifying box, a dust collecting frame is arranged in the filter box and is arranged on one side of the filter box close to the air inlet pipe, a pull rod is fixedly arranged on the dust collecting frame, and a pull ring is fixedly arranged on the top end of the pull rod; the exhaust pipe comprises an air delivery pipe I and an air delivery pipe II, the air delivery pipe I is fixed on the outer wall of one side of the purifying box, a fixed cylinder is fixedly installed on the outer wall of one side of the partition plate, the other end of the air delivery pipe I is communicated with the fixed cylinder, the air delivery pipe II is fixedly installed on the outer wall of the fixed cylinder, the other end of the air delivery pipe II extends to the upper side of the embedded box, a cleaning mechanism is arranged on the filter bucket, and the cleaning mechanism comprises: clear up bucket, drive frame and clearance board, clear up bucket fixed mounting on the inner wall of filter bowl, the drive frame rotates to be installed on the clearance bucket, clearance board fixed mounting is on the drive frame, one side of clearance board and the inner wall contact of filter bowl are provided with the brush on the outer wall of one side of clearance board, can clear up a plurality of filtration pore second through the brush, guarantee the filter effect of filter bowl, be provided with drive mechanism on the baffle, drive mechanism includes: the device comprises a transmission rod, a belt pulley I, a rotating roller, a belt pulley II, an impeller and a transmission belt, wherein the transmission rod is rotatably arranged on one side outer wall of a partition board, one end of the transmission rod extends into a cleaning barrel, a bevel gear I is fixedly sleeved at one end of the transmission rod, which is positioned in the cleaning barrel, a bevel gear II is fixedly sleeved at one end of the transmission frame, which is positioned in the cleaning barrel, the bevel gear I is meshed with the bevel gear II, the belt pulley I is fixedly sleeved at one end of the transmission rod, which is far away from the cleaning barrel, the rotating roller is rotatably arranged on one side outer wall of the partition board, one end of the rotating roller extends into a fixed barrel, the belt pulley II is fixedly sleeved on the rotating roller, the impeller is arranged in the fixed barrel, the impeller is fixedly sleeved on the rotating roller, the transmission belt is sleeved on the belt pulley I and the belt pulley II, and two regulating rollers are rotatably arranged on one side outer wall of the partition board.
Preferably, the two crushing rollers, the crushing motor, the first circular gear and the second circular gear are all rotatably mounted on the inner walls of two sides of the crushing frame, one end of each crushing roller penetrates through the partition plate and is rotatably connected with the partition plate, the crushing motor is fixedly mounted on the outer wall of one side of the partition plate, the first circular gear is fixedly sleeved with the two crushing rollers, the second circular gear is fixedly sleeved with the output shaft of the crushing motor, and the second circular gear is meshed with any one circular gear.
Preferably, a valve I is arranged at the bottom end of the filter bucket, which is positioned outside the water receiving bucket, and the valve I adopts an electric ball valve.
Preferably, the top of pre-buried case has been seted up and has been got the material through-hole, get the material through-hole with the storage case intercommunication, the top of pre-buried case is provided with apron one, a T type setting of apron, the bottom of apron one extends to get in the material through-hole, apron one is in through four mounting bolt fixed mounting the top of pre-buried case, the handle is installed in the top rotation of apron one.
Preferably, the top of the water accumulation tank is fixedly provided with two baffle plates, the two baffle plates are arranged at two sides of the small material conveyor, and the outer wall of one side of each baffle plate is fixedly connected with the outer wall of one side of the material accumulation tank.
Preferably, a plurality of liquid level detectors are fixedly arranged on the inner wall of one side of the water storage tank.
Preferably, two replacement through openings are formed in the top of the embedded box, the two replacement through openings are respectively communicated with the filter box and the purifying box, two cover plates II are arranged at the top of the embedded box and are arranged in a T-shaped mode, the bottoms of the cover plates II extend to the two replacement through openings respectively, and the two cover plates II are installed on the embedded box through eight fixing bolts respectively.
In order to solve the technical problems, the application also provides a sewage prefiltering method, which comprises the following steps:
s1: digging a placement groove of an embedded box at the bottom of the sewer, and embedding the embedded box into the placement groove to enable the top of the embedded box to be leveled with the inner wall of the bottom of the sewer;
s2: collecting water flow of a sewer through a water blocking frame and a water baffle plate and conveying the water flow into an embedded box;
s3: crushing impurities in the sewage through a crushing mechanism;
s4: the sewage falls into a filter bucket, a plurality of filter holes II on the filter bucket prefilter the sewage, the filtered water flow is conveyed into a water storage tank through a water receiving bucket and a water conveying pipe I, and a lifting pump is started to convey the water flow in the water storage tank into a sewer again through a water inlet pipe II and a water outlet pipe II;
s5: the impurity in the filter funnel drops on small-size material conveyer after filtering, starts small-size material conveyer and carries the receipts material frame in the storage case with impurity, takes out the receipts material frame from the pre-buried incasement and clear up afterwards.
Compared with the related art, the sewage prefilter and the filtering method provided by the application have the following beneficial effects:
the application provides a sewage prefilter which can better shield water flow in a sewer through a water blocking frame and two water baffles, so that the filtering effect of the sewage prefilter is improved;
through the setting of two crushing rollers, crushing motor, two circular gear one and circular gear two, can break great impurity in the rivers, avoid causing subsequent filterable jam, guarantee you to the normal filtration of rivers, through the setting of filter bucket, water receiving bucket, raceway one, storage water tank, elevator pump, inlet tube two and outlet pipe two, can prefilter sewage to impurity in avoiding the sewage blocks up the sewer, also provide convenient for subsequent sewage treatment simultaneously.
Drawings
FIG. 1 is a schematic diagram of a front view of a sewage prefilter device and a first embodiment of the present application;
FIG. 2 is a schematic cross-sectional elevation view of a first embodiment of a wastewater prefilter device of the present application;
FIG. 3 is a schematic rear sectional view of a first embodiment of a sewage prefilter device according to the present application;
FIG. 4 is a schematic perspective sectional view of a first embodiment of a sewage prefilter device according to the present application;
fig. 5 is a schematic perspective view of a receiving frame in a first embodiment of the sewage prefilter according to the present application;
FIG. 6 is a schematic diagram showing a front view of a second embodiment of the sewage prefilter according to the present application;
FIG. 7 is a schematic cross-sectional view of a second embodiment of a wastewater prefilter device provided by the present application;
FIG. 8 is a schematic diagram showing a front view of a third embodiment of a sewage prefilter according to the present application;
FIG. 9 is a schematic diagram showing the connection structure of a cleaning barrel, a fixing barrel and a transmission mechanism in a third embodiment of the sewage prefilter device provided by the application;
FIG. 10 is a schematic perspective sectional view of a transmission mechanism in a third embodiment of a sewage prefilter according to the present application;
FIG. 11 is a schematic diagram showing a front view of a fourth embodiment of a sewage prefilter according to the present application;
fig. 12 is a schematic perspective sectional view of a cover plate one in a fourth embodiment of the sewage prefilter according to the present application.
Reference numerals in the drawings: 1. embedding a box; 2. a water blocking frame; 3. crushing a frame; 4. a water receiving bucket; 5. a filter bucket; 6. a valve I; 7. a small material conveyor; 8. a storage bin; 9. a feed inlet; 10. a water accumulation tank; 11. a water filtering tank; 12. a water delivery pipe I; 13. a material receiving frame; 14. a cover plate I; 15. a water storage tank; 16. a liquid level detector; 17. a water delivery pipe II; 18. a second valve; 19. a pulverizing roller; 20. a circular gear I; 21. a crushing motor; 22. a circular gear II; 23. a water pump; 24. a first water inlet pipe; 25. a first water outlet pipe; 26. a lift pump; 27. a water inlet pipe II; 28. a second water outlet pipe; 29. a partition plate; 30. a water baffle; 31. a striker plate; 32. a suction fan; 33. a filter box; 34. a purifying box; 35. an air inlet pipe; 36. an exhaust pipe; 37. an activated carbon adsorption plate; 38. a filter plate; 39. a dust collecting frame; 40. a pull rod; 41. replacing the through hole; 42. a cover plate II; 43. a fixed cylinder; 44. an air delivery pipe I; 45. an air delivery pipe II; 46. a first belt pulley; 47. a drive belt; 48. a rotating roller; 49. a belt pulley II; 50. an impeller; 51. cleaning a barrel; 52. a transmission rod; 53. a first conical gear; 54. a second bevel gear; 55. a transmission frame; 56. a cleaning plate; 57. a shrink tank; 58. clamping the rod; 59. a clamping groove; 60. a pull rope; 61. and a return spring.
Detailed Description
The application will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1 to 5, the sewage prefilter and the filtering method include: the embedded box 1, the embedded box 1 adopts the iron plate welding to form, the storage box 8 and the water storage tank 15 are fixedly installed in the embedded box 1, a material receiving frame 13 is arranged in the storage box 8, a plurality of first filtering holes are formed in the bottom of the material receiving frame 13, a filtering state can be formed for water flow in stored impurities through the arrangement of the first filtering holes, a material taking through hole is formed in the top of the embedded box 1, the material taking through hole is communicated with the storage box 8, a cover plate 14 is arranged at the top of the embedded box 1, the cover plate 14 is in a T-shaped arrangement, the bottom of the cover plate 14 extends into the material taking through hole, the cover plate 14 is fixedly installed at the top of the embedded box 1 through four mounting bolts, a lifting handle is rotatably installed at the top of the cover plate 14, a plurality of liquid level detectors 16 are fixedly installed on the inner wall of one side of the water storage tank 15, the liquid level detectors 16 are formed by adopting the prior art, the function of detecting the sewage capacity in the water storage tank 15, thereby being convenient for the lift pump 26 to discharge, avoid forming the empty pump operation, the top fixed mounting of pre-buried case 1 has water blocking frame 2, the width of water blocking frame 2 is the same with the width of pre-buried case 1, fixed mounting has the shielding plate on the inner wall of water blocking frame 2, the shielding plate sets up in a roll-over, can make things convenient for rivers to flow into smashing in the frame 3, both sides outer wall on water blocking frame 2 is last to be fixed mounting has water baffle 30, two water baffle 30 adopt flexible rubber material to constitute, through the setting of water baffle 30, the rivers in the sewer of blocking that can be better, fixed mounting is smashed the frame 3 on the top inner wall of pre-buried case 1, be provided with crushing mechanism on smashing the frame 3, the bottom fixed mounting of smashing frame 3 has water receiving bucket 4, the inner wall mountain fixed mounting of water receiving bucket 4 has filter bucket 5, a plurality of filtration pore second has been seted up on the inner wall of filter bucket 5, the bottom of filter bucket 5 extends to the below of water receiving bucket 4, the filter bucket 5 is arranged at the bottom end outside the water receiving bucket 4, the valve I6 adopts an electric ball valve, the material can be controlled to fall discontinuously through the valve I6, the material is more prevented from falling onto the small material conveyor 7 through the filter bucket 5, the top of the pre-buried box 1 is provided with a water through groove which is communicated with the water blocking frame 2, the water through groove is communicated with the crushing frame 3, the inner wall of the water through groove is arranged in an inclined manner, the sewage is conveniently fallen down, the small material conveyor 7 is arranged in the pre-buried box 1, the small material conveyor 7 is formed by adopting the prior art, the surface of a conveying belt on the small material conveyor 7 is arranged into a net shape, one end of the small material conveyor 7 is arranged below the filter bucket 5, the other end of the small material conveyor 7 extends into the storage box 8, one side outer wall of the storage box 8 is provided with a feed inlet 9, one end of the small material conveyor 7 penetrates through the feed inlet 9 and is matched with the feed inlet 9, a water delivery pipe II 17 is fixedly installed on the outer wall of the water receiving bucket 4, the other end of the water delivery pipe II 17 is communicated with the water storage tank 15, a valve II 18 is arranged on the water delivery pipe II 17, the valve II 18 is formed by an electric valve, a partition 29 is fixedly installed on the inner wall of the embedded box 1, a lifting pump 26 is fixedly installed on the outer wall of one side of the partition 29, a water inlet pipe II 27 is fixedly installed on a water inlet of the lifting pump 26, the other end of the water inlet pipe II 27 is communicated with the water storage tank 15, a water outlet pipe II 28 is fixedly installed on a water outlet of the lifting pump 26, the other end of the water outlet pipe II 28 extends to the upper portion of the embedded box 1, and the top end of the water outlet pipe II 28 needs to extend to the upper portion of the sewer, so that flowing water flow can not form backflow.
The crushing mechanism includes: the two crushing rollers 19, the crushing motor 21, the first round gears 20 and the second round gears 22, the two crushing rollers 19 are all rotatably mounted on the inner walls of the two sides of the crushing frame 3, one ends of the two crushing rollers 19 penetrate through the partition 29 and are rotatably connected with the partition 29, the crushing motor 21 is fixedly mounted on the outer wall of one side of the partition 29, the first round gears 20 are fixedly sleeved on one ends of the two crushing rollers 19 respectively, the second round gears 22 are fixedly sleeved on the output shaft of the crushing motor 21, and the second round gears 22 are meshed with any one of the first round gears 20.
The water storage tank 10 is fixedly mounted on the inner wall of the bottom of the embedded tank 1, two baffle plates 31 are fixedly mounted on the top of the water storage tank 10, two baffle plates 31 are arranged on two sides of the small material conveyor 7, one side outer wall of each baffle plate 31 is fixedly connected with one side outer wall of the storage tank 8, a water receiving port is formed in the top of the water storage tank 10 and located below the small material conveyor 7, a water filtering tank 11 is formed in the inner wall of the bottom of the material receiving frame 13, a water conveying pipe I12 is fixedly mounted on the top of the water storage tank 10, the top of the water conveying pipe I12 is communicated with the water filtering tank 11, a water conveying pump 23 is fixedly mounted on one side outer wall of the partition plate 29, a water inlet pipe I24 is fixedly mounted on a water inlet of the water conveying pump 23, the other end of the water inlet pipe I24 is communicated with the water storage tank 10, a water outlet pipe I25 is fixedly mounted on a water outlet of the water conveying pump 23, the other end of the water outlet pipe I25 is communicated with the water storage tank 15, and the water conveying pump 23 is operated in an intermittent mode.
In this embodiment:
before use, a proper deep groove is required to be excavated at the bottom of the sewer, and then the embedded box 1 is hoisted and transported by a crane, so that the embedded box 1 enters the deep groove, and the top of the embedded box 1 and the inner wall of the bottom of the sewer are positioned at the same horizontal plane;
during the use, sewage flows in the sewer, through setting up of water blocking frame 2 and breakwater 30, can make rivers flow in smashing frame 3, start crushing motor 21 drives circular gear two 22 and rotates, under the effect of two circular gears one 20, drive two crushing rollers 19 and rotate, then smash the impurity in the rivers that get into smashing frame 3, this operation need not long incessantly go on, two crushing rollers 19 can intercept great impurity in the rivers, play prefilter's effect, and stay the impurity on two crushing rollers 19 and can break when smashing roller 19 rotation, drop in filter bucket 5 thereupon, can filter the impurity through filter bucket 5, the rivers after filtering can flow in receiving bucket 4, rethread raceway one 12 flows in storage water tank 15, and the impurity that filters can stay in filter bucket 5, only need open valve one 6, the impurity drops on small-size material conveyer 7 under the effect of gravity, can be with the relatively big impurity in rivers interception in the water storage box 8 through small-size material conveyer 7, play prefilter's effect, can receive in the water storage box 13 in order to receive the water inlet tube 13 and can be opened at certain height in order to receive the water outlet pipe 13, thereby the water inlet tube 14 is opened in order to receive the water storage box 13, the operation is convenient and easy, the water inlet tube is opened in order to receive the frame 13, the operation is accomplished in order to receive the water inlet tube 13 again, and the water inlet tube is convenient for the operation is 13 is convenient to receive in the 13.
Compared with the related art, the sewage prefilter provided by the application has the following beneficial effects:
the water flow in the sewer can be well shielded through the water blocking frame 2 and the two water blocking plates 30, so that the filtering effect of the sewage prefilter is improved;
through the setting of two crushing rollers 19, crushing motor 21, two circular gears one 20 and circular gear two 22, can break great impurity in the rivers, avoid causing subsequent filterable jam, guarantee you to the normal filtration of rivers, through the setting of filter bucket 5, connect cask 4, raceway one 12, storage water tank 15, elevator pump 26, inlet tube two 27 and outlet pipe two 28, can prefilter sewage to impurity in avoiding the sewage blocks up the sewer, also provide convenience for subsequent sewage treatment simultaneously.
Second embodiment
Based on the sewage prefilter and the filtering method provided by the first embodiment of the application, the second embodiment of the application provides another sewage prefilter and a filtering method. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
A second embodiment of the application is further described below with reference to the drawings and the embodiments.
Referring to fig. 6-7, the sewage prefilter further includes a suction fan 32, the suction fan 32 is fixedly mounted on an outer wall of one side of the partition 29, a filter tank 33 and a purifying tank 34 are fixedly mounted on an outer wall of one side of the partition 29, an air inlet port on the suction fan 32 is communicated with the filter tank 33, an air outlet port on the suction fan 32 is communicated with the purifying tank 34, an air inlet pipe 35 is fixedly mounted on an outer wall of one side of the filter tank 33, the other end of the air inlet pipe 35 is communicated with the storing tank 8, an exhaust pipe 36 is fixedly mounted on an outer wall of one side of the purifying tank 34, and the other end of the exhaust pipe 36 extends to above the embedded tank 1. The filter plate 38 is fixedly installed on the inner wall of the filter box 33, the dust collecting frame 39 is arranged in the filter box 33, the dust collecting frame 39 is arranged on one side of the filter box 33 close to the air inlet pipe 35, the pull rod 40 is fixedly installed on the dust collecting frame 39, the pull ring is fixedly installed on the top end of the pull rod 40, and the two activated carbon adsorption plates 37 are arranged on the inner wall of the purifying box 34.
Two replacement through openings 41 are formed in the top of the embedded box 1, two replacement through openings 41 are respectively communicated with the filter box 33 and the purifying box 34, two cover plates two 42 are arranged on the top of the embedded box 1, the two cover plates two 42 are all in T-shaped arrangement, the bottoms of the two cover plates two 42 are respectively extended to the two replacement through openings 41, and the two cover plates two 42 are respectively installed on the embedded box 1 through eight fixing bolts.
In this embodiment:
when the air suction machine 32 is started in use, air flow in the storage box 8 is absorbed into the filter box 33 through the air inlet pipe 35, impurities in the air flow can be filtered through the filter plate 38, damage to the air suction machine 32 caused by the impurities is avoided, the filtered impurities fall into the dust collecting frame 39, the dust collecting frame 39 is taken out through the pull rod 40 to be cleaned, the filtered air flow can flow into the purifying box 34, the filtered air flow is discharged through the exhaust pipe 36 after being filtered by the two activated carbon adsorption plates 37, the accumulation of the air in the sewage impurities in the storage box 8 can be avoided through the operation, and the discomfort of the cleaning personnel caused by the air in the cleaning process of cleaning the storage box 8 is avoided.
Third embodiment
A third example of the application is further described below with reference to the drawings and embodiments.
Referring to fig. 8-10, in the sewage prefilter, the exhaust duct 36 is composed of a first air duct 44 and a second air duct 45, the first air duct 44 is fixed on an outer wall of one side of the purifying box 34, a fixed cylinder 43 is fixedly installed on an outer wall of one side of the partition 29, the other end of the first air duct 44 is communicated with the fixed cylinder 43, the second air duct 45 is fixedly installed on an outer wall of the fixed cylinder 43, the other end of the second air duct 45 extends to an upper side of the pre-buried box 1, a cleaning mechanism is arranged on the filtering hopper 5, and the cleaning mechanism includes: clear up bucket 51, drive frame 55 and clearance board 56, clear up bucket 51 fixed mounting is on the inner wall of filter bowl 5, drive frame 55 rotates to be installed on clear up bucket 51, clearance board 56 fixed mounting is on drive frame 55, one side of clearance board 56 and the inner wall contact of filter bowl 5, be provided with the brush on the outer wall of one side of clearance board 56, can clear up a plurality of filtration pore second through the brush, guarantee the filter effect of filter bowl 5, be provided with drive mechanism on the baffle 29, drive mechanism includes: the transmission rod 52, the belt pulley I46, the rotating roller 48, the belt pulley II 49, the impeller 50 and the transmission belt 47, the transmission rod 52 is rotatably installed on one side outer wall of the partition 29, one end of the transmission rod 52 extends into the cleaning barrel 51, one end of the transmission rod 52, which is located in the cleaning barrel 51, is fixedly sleeved with the first bevel gear 53, one end of the transmission frame 55, which is located in the cleaning barrel 51, is fixedly sleeved with the second bevel gear 54, the first bevel gear 53 is meshed with the second bevel gear 54, the belt pulley I46 is fixedly sleeved with one end of the transmission rod 52, which is far away from the cleaning barrel 51, the rotating roller 48 is rotatably installed on one side outer wall of the partition 29, one end of the rotating roller 48 extends into the fixing barrel 43, the belt pulley II 49 is fixedly sleeved with the rotating roller 48, the impeller 50 is arranged in the fixing barrel 43, the impeller 50 is fixedly sleeved with the rotating roller 48, the transmission belt 47 is sleeved with the first bevel gear 46 and the second bevel gear 49, two adjusting rollers are rotatably installed on one side outer wall of the partition 29, and the shape of the transmission belt 47 can be adjusted through the two adjusting rollers, so that the installation is adapted.
In the present embodiment
When the air flow is conveyed through the suction fan 32, the purified air flow is conveyed into the fixed cylinder 43 through the first air conveying pipe 44, the air flow is conveyed to the outside of the embedded box 1 through the second air conveying pipe 45, the impeller 50 is driven to rotate when the air flow flows in the fixed cylinder 43, the rotating roller 48 is driven to rotate, the belt pulley 49 is driven to rotate, the transmission rod 52 is driven to rotate through the action of the transmission belt 47, the transmission frame 55 is driven to rotate under the action of the first bevel gear 53 and the second bevel gear 54, the cleaning plate 56 is driven to rotate, and the inner wall of the filter bucket 5 can be cleaned through the cleaning plate 56 effectively, so that the blocking probability of the filter bucket 5 is reduced, and normal filtration of sewage is guaranteed.
Fourth embodiment
A fourth example of the application will be further described with reference to the drawings and embodiments.
Referring to fig. 11-12, in the sewage prefilter, a first cover plate 14 is disposed at the top of the pre-buried box 1, a handle is disposed at the top of the first cover plate 14, four shrinkage grooves 57 are formed in the outer wall of the first cover plate 14, four clamping bars 58 are slidably mounted on the inner walls of the four shrinkage grooves 57, four clamping grooves 59 are formed in the inner walls of the material taking through grooves, the four clamping bars 58 extend into the four clamping grooves 59 in a decibel manner and are respectively matched with the four clamping grooves 59, pull ropes 60 are fixedly mounted on the outer walls of one sides of the four clamping bars 58, one ends of the four pull ropes 60 are fused and connected with the bottoms of the handles, return springs 61 are fixedly mounted on the inner walls of one sides of the four shrinkage grooves 57, and the other ends of the four return springs 61 are respectively fixedly connected with one ends of the four clamping bars 58.
In the present embodiment
When impurity cleaning is carried out, the cover plate I14 needs to be taken down, only the lifting handle is needed to be pulled at this moment, under the action of the pulling force, the four clamping rods 58 are respectively moved towards the four shrinkage grooves 57, and then are respectively separated from the four clamping grooves 59, so that the cover plate I14 can be taken down from the embedded box 1, and similarly, when the cover plate I14 is pulled during installation, the four clamping rods 58 are contracted in the four shrinkage grooves 57, after the cover plate I14 enters the material taking through groove, the lifting handle is loosened, under the action of the four reset springs 61, the four clamping rods 58 are respectively pushed into the four clamping grooves 59, and therefore the fixing of the cover plate I14 can be completed, the operation is simple and convenient, and the cleaning convenience for impurities can be effectively improved.
The application also provides a sewage prefiltering method, which comprises the following steps:
s1: digging a groove with the same size as the embedded box 1 at the bottom of the sewer, and embedding the embedded box 1 into the groove to enable the top of the embedded box 1 to be leveled with the inner wall of the bottom of the sewer;
s2: the water flow of the sewer is collected through the water blocking frame 2 and the water blocking plate 30 and is conveyed into the embedded box 1;
s3: starting a crushing motor 21 to drive two crushing rollers 19 to rotate so as to crush larger impurities in the sewage;
s4: the sewage falls into the filter bucket 5, the sewage is prefiltered through a plurality of filter holes II on the filter bucket 5, the filtered water flow is conveyed into the water storage tank 15 through the water receiving bucket 4 and the water conveying pipe I12, and the lifting pump 26 is started to convey the water flow in the water storage tank 15 into the sewer again through the water inlet pipe II 27 and the water outlet pipe II 28;
s5: and starting the valve I6, enabling impurities in the filter hopper 5 to fall onto the small material conveyor 7, starting the small material conveyor 7 to convey the impurities into the material receiving frame 13 in the storage box 8, taking the cover plate I14 off from the top of the embedded box 1, and taking the material receiving frame 13 out of the embedded box 1 for cleaning.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (8)

1. A sewage prefilter device comprising: the embedded box is characterized in that the embedded box is formed by welding iron plates, a material storage box and a water storage tank are fixedly arranged in the embedded box, a material receiving frame is arranged in the material storage box, a water blocking frame is fixedly arranged at the top of the embedded box, the width of the water blocking frame is the same as that of the embedded box, a crushing frame is fixedly arranged on the inner wall of the top of the embedded box, a crushing mechanism is arranged on the crushing frame, a water receiving bucket is fixedly arranged at the bottom of the crushing frame, a filter bucket is fixedly arranged on the inner wall of the water receiving bucket, the bottom end of the filter bucket extends to the lower part of the water receiving bucket, a plurality of second filter holes are formed in the inner wall of the filter bucket, a small material conveyer is arranged in the embedded box, one end of the small material conveyer is positioned below the filter bucket, the other end of the small material conveyor extends into the storage box, a water delivery pipe II is fixedly arranged on the outer wall of the water receiving barrel, the other end of the water delivery pipe II is communicated with the water storage box, a partition plate is fixedly arranged on the inner wall of the embedded box, a lifting pump is fixedly arranged on the outer wall of one side of the partition plate, a water inlet pipe II is fixedly arranged on a water inlet of the lifting pump, the other end of the water inlet pipe II is communicated with the water storage box, a water outlet pipe II is fixedly arranged on a water outlet of the lifting pump, the other end of the water outlet pipe II extends to the upper part of the embedded box, water blocking plates are fixedly arranged on the outer walls of two sides of the water blocking frame, and the two water blocking plates are made of flexible rubber materials; the water collecting device comprises a water storage tank, a water collecting box, a water outlet pipe and a water storage tank, wherein the water collecting box is fixedly installed on the inner wall of the bottom of the embedded box, the water collecting box is arranged at the top of the water storage tank, the water filtering tank is arranged on the inner wall of the bottom of the material collecting box, a water conveying pipe I is fixedly installed at the top of the water conveying pipe I and communicated with the water filtering tank, a water conveying pump is fixedly installed on the outer wall of one side of the partition plate, a water inlet pipe I is fixedly installed at the water inlet of the water conveying pump, the other end of the water inlet pipe I is communicated with the water storage tank, a water outlet pipe I is fixedly installed at the water outlet of the water conveying pump, and the other end of the water outlet pipe I is communicated with the water storage tank; the filter plate is characterized in that a suction fan, a filter box and a purifying box are fixedly arranged on the outer wall of one side of the partition plate, an air inlet port on the suction fan is communicated with the filter box, an air outlet port on the suction fan is communicated with the purifying box, an air inlet pipe is fixedly arranged on the outer wall of one side of the filter box, the other end of the air inlet pipe is communicated with the storage box, an exhaust pipe is fixedly arranged on the outer wall of one side of the purifying box, the other end of the exhaust pipe extends to the upper part of the pre-buried box, a filter plate is fixedly arranged on the inner wall of the filter box, two activated carbon adsorption plates are arranged on the inner wall of the purifying box, a dust collecting frame is arranged in the filter box and is arranged on one side of the filter box close to the air inlet pipe, a pull rod is fixedly arranged on the dust collecting frame, and a pull ring is fixedly arranged on the top end of the pull rod; the exhaust pipe comprises an air delivery pipe I and an air delivery pipe II, the air delivery pipe I is fixed on the outer wall of one side of the purifying box, a fixed cylinder is fixedly installed on the outer wall of one side of the partition plate, the other end of the air delivery pipe I is communicated with the fixed cylinder, the air delivery pipe II is fixedly installed on the outer wall of the fixed cylinder, the other end of the air delivery pipe II extends to the upper side of the embedded box, a cleaning mechanism is arranged on the filter bucket, and the cleaning mechanism comprises: clear up bucket, drive frame and clearance board, clear up bucket fixed mounting on the inner wall of filter bowl, the drive frame rotates to be installed on the clearance bucket, clearance board fixed mounting is on the drive frame, one side of clearance board and the inner wall contact of filter bowl are provided with the brush on the outer wall of one side of clearance board, can clear up a plurality of filtration pore second through the brush, guarantee the filter effect of filter bowl, be provided with drive mechanism on the baffle, drive mechanism includes: the device comprises a transmission rod, a belt pulley I, a rotating roller, a belt pulley II, an impeller and a transmission belt, wherein the transmission rod is rotatably arranged on one side outer wall of a partition board, one end of the transmission rod extends into a cleaning barrel, a bevel gear I is fixedly sleeved at one end of the transmission rod, which is positioned in the cleaning barrel, a bevel gear II is fixedly sleeved at one end of the transmission frame, which is positioned in the cleaning barrel, the bevel gear I is meshed with the bevel gear II, the belt pulley I is fixedly sleeved at one end of the transmission rod, which is far away from the cleaning barrel, the rotating roller is rotatably arranged on one side outer wall of the partition board, one end of the rotating roller extends into a fixed barrel, the belt pulley II is fixedly sleeved on the rotating roller, the impeller is arranged in the fixed barrel, the impeller is fixedly sleeved on the rotating roller, the transmission belt is sleeved on the belt pulley I and the belt pulley II, and two regulating rollers are rotatably arranged on one side outer wall of the partition board.
2. The wastewater prefilter device of claim 1, wherein said comminution mechanism comprises: two crushing rollers, crushing motor, two circular gears one and circular gear two, two crushing rollers are all rotated and are installed on the both sides inner wall of crushing frame, two crushing roller's one end all runs through the baffle and with the baffle rotates to be connected, crushing motor fixed mounting is in on the outer wall of one side of baffle, two circular gear one respectively fixed cover establish two crushing roller's one end, circular gear two fixed cover is established on crushing motor's the output shaft, circular gear two with arbitrary one circular gear one meshing.
3. The sewage prefilter of claim 1, wherein a valve one is provided on the bottom end of the filter bucket outside the water receiving bucket, and the valve one adopts an electric ball valve.
4. The sewage prefilter of claim 1, wherein the top of the pre-buried box is provided with a material taking through hole, the material taking through hole is communicated with the material storage box, the top of the pre-buried box is provided with a cover plate I, the cover plate I is in a T-shaped arrangement, the bottom of the cover plate I extends into the material taking through hole, the cover plate I is fixedly installed at the top of the pre-buried box through four mounting bolts, and a handle is rotatably installed at the top of the cover plate I.
5. The sewage prefilter of claim 1, wherein two baffle plates are fixedly installed at the top of the water accumulation tank, the two baffle plates are arranged at two sides of the small material conveyor, and one side outer wall of each baffle plate is fixedly connected with one side outer wall of the material accumulation tank.
6. The sewage prefilter of claim 1, wherein a plurality of liquid level detectors are fixedly mounted on an inner wall of one side of the water storage tank.
7. The sewage prefilter of claim 1, wherein two replacement openings are formed in the top of the pre-buried box, the two replacement openings are respectively communicated with the filter box and the purifying box, two cover plates two are arranged on the top of the pre-buried box and are arranged in a T-shaped mode, the bottoms of the two cover plates two extend into the two replacement openings respectively, and the two cover plates two are installed on the pre-buried box through eight fixing bolts respectively.
8. A method for prefiltering sewage, characterized in that the sewage prefiltering apparatus according to any one of claims 1 to 7 is used for prefiltering sewage, comprising the steps of:
s1: digging a placement groove of an embedded box at the bottom of the sewer, and embedding the embedded box into the placement groove to enable the top of the embedded box to be leveled with the inner wall of the bottom of the sewer;
s2: collecting water flow of a sewer through a water blocking frame and a water baffle plate and conveying the water flow into an embedded box;
s3: crushing impurities in the sewage through a crushing mechanism;
s4: the sewage falls into a filter bucket, a plurality of filter holes II on the filter bucket prefilter the sewage, the filtered water flow is conveyed into a water storage tank through a water receiving bucket and a water conveying pipe I, and a lifting pump is started to convey the water flow in the water storage tank into a sewer again through a water inlet pipe II and a water outlet pipe II;
s5: the impurity in the filter funnel drops on small-size material conveyer after filtering, starts small-size material conveyer and carries the receipts material frame in the storage case with impurity, takes out the receipts material frame from the pre-buried incasement and clear up afterwards.
CN202311167676.5A 2023-09-12 2023-09-12 Sewage prefilter and filtering method Active CN116899311B (en)

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344152A1 (en) * 1986-10-29 1989-12-06 Josef Merai Process and installation for dewatering waste water sludge.
AU2001287343A1 (en) * 2000-09-26 2002-06-20 Helmut Bacher Device and method for the filtration of viscous material
KR20070064946A (en) * 2005-12-19 2007-06-22 이승준 A food garbage treating apparatus
KR20090024632A (en) * 2007-09-04 2009-03-09 미츠비시 마테리알 가부시키가이샤 Clean bench and method of producing raw material for single crystal silicon
CA2355165C (en) * 1998-12-18 2009-03-17 Filter Technology Australia Pty. Limited A filter cartridge and process
CN205381973U (en) * 2016-02-21 2016-07-13 沈阳环境科学研究院 Medical wastewater processing apparatus
CN211311216U (en) * 2019-05-30 2020-08-21 北京兴星伟业生态环境工程技术有限公司 Buried integrated rural domestic sewage treatment device
CN212374914U (en) * 2020-05-21 2021-01-19 江西中驰绿能科技有限公司 Solid waste filtering device
CN215137615U (en) * 2021-03-24 2021-12-14 卫金翠 Self-cleaning device for water supply and drainage in electric power engineering
CN114405103A (en) * 2022-02-23 2022-04-29 武汉水务环境科技有限公司 Automatic sewage treatment equipment for sewage treatment
CN219376233U (en) * 2023-04-13 2023-07-21 黑龙江省庄禹检测科技有限公司 Engineering construction wastewater treatment system
CN116587055A (en) * 2023-07-18 2023-08-15 山西旭峰机电设备科技发展有限公司 Chip cleaning system of machine tool
CN219784049U (en) * 2023-05-30 2023-10-03 李红梅 Drainage extraction prefilter structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411824B (en) * 2000-09-26 2004-06-25 Bacher Helmut DEVICE AND METHOD FOR FILTRATING VISCOSE MATERIALS
CN110439101B (en) * 2019-09-06 2020-04-03 广州克力劳保用品有限公司 Dredging device for urban sewer

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344152A1 (en) * 1986-10-29 1989-12-06 Josef Merai Process and installation for dewatering waste water sludge.
CA2355165C (en) * 1998-12-18 2009-03-17 Filter Technology Australia Pty. Limited A filter cartridge and process
AU2001287343A1 (en) * 2000-09-26 2002-06-20 Helmut Bacher Device and method for the filtration of viscous material
KR20070064946A (en) * 2005-12-19 2007-06-22 이승준 A food garbage treating apparatus
KR20090024632A (en) * 2007-09-04 2009-03-09 미츠비시 마테리알 가부시키가이샤 Clean bench and method of producing raw material for single crystal silicon
CN205381973U (en) * 2016-02-21 2016-07-13 沈阳环境科学研究院 Medical wastewater processing apparatus
CN211311216U (en) * 2019-05-30 2020-08-21 北京兴星伟业生态环境工程技术有限公司 Buried integrated rural domestic sewage treatment device
CN212374914U (en) * 2020-05-21 2021-01-19 江西中驰绿能科技有限公司 Solid waste filtering device
CN215137615U (en) * 2021-03-24 2021-12-14 卫金翠 Self-cleaning device for water supply and drainage in electric power engineering
CN114405103A (en) * 2022-02-23 2022-04-29 武汉水务环境科技有限公司 Automatic sewage treatment equipment for sewage treatment
CN219376233U (en) * 2023-04-13 2023-07-21 黑龙江省庄禹检测科技有限公司 Engineering construction wastewater treatment system
CN219784049U (en) * 2023-05-30 2023-10-03 李红梅 Drainage extraction prefilter structure
CN116587055A (en) * 2023-07-18 2023-08-15 山西旭峰机电设备科技发展有限公司 Chip cleaning system of machine tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
关于环境工程中城市污水处理的分析;张雨;;建材与装饰(第19期);全文 *

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