CN115400496A - Sewage filtering device in primary sewage treatment system - Google Patents
Sewage filtering device in primary sewage treatment system Download PDFInfo
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- CN115400496A CN115400496A CN202211015733.3A CN202211015733A CN115400496A CN 115400496 A CN115400496 A CN 115400496A CN 202211015733 A CN202211015733 A CN 202211015733A CN 115400496 A CN115400496 A CN 115400496A
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- Prior art keywords
- grating
- sewage
- water
- chain
- water outlet
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- 239000010865 sewage Substances 0.000 title claims abstract description 64
- 238000001914 filtration Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 230000005540 biological transmission Effects 0.000 claims description 9
- 210000000988 bone and bone Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 208000034699 Vitreous floaters Diseases 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of sewage treatment equipment, in particular to a sewage filtering device in a primary sewage treatment system, which comprises: the device comprises a frame, a lifting water pump, a power unit, a thick grating, a thin grating, a rotating device, a water receiving disc and a drain pipe; the invention changes the structure of the sewage flow path and the rake teeth, and the thick grating and the thin grating are arranged in a centralized way, so that the integral degree of the equipment is high, on one hand, the occupied area is reduced, on the other hand, the coarse filtration and the fine filtration of the sewage can be completed through one power unit, and thus, the power unit and the energy consumption are reduced.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to a sewage filtering device in a primary sewage treatment system.
Background
In the first-stage sewage treatment, floating objects and silt in sewage need to be filtered, and the existing mode is a coarse grating machine, a lifting water pump, a fine grating machine and a sedimentation tank, namely large and medium sized floating objects in the sewage are intercepted by the coarse grating to protect the lifting water pump from being damaged, the sewage passes through the lifting water pump to the fine grating to intercept small and medium sized floating objects in the sewage and is discharged to the sedimentation tank to precipitate and filter the silt in the sewage, wherein the coarse grating machine and the fine grating machine need to be separately arranged, and a plurality of power units are needed to maintain the operation of the coarse grating machine and the fine grating machine, so that the occupied area is large, the energy consumption of equipment is high, for example, the fine grating machine is directly adopted to intercept the floating in the sewage, the fine grating machine is easy to be blocked, and for example, the coarse grating machine is directly adopted to intercept the floating in the sewage, and the interception efficiency is poor.
Disclosure of Invention
Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a sewage filtering apparatus in a primary sewage treatment system, which reduces a floor area and energy consumption of equipment by integrally installing a coarse grating and a fine grating, and which is achieved by the following technical solutions:
sewage filtering device in one-level sewage treatment system includes: the device comprises a frame, a lifting water pump, a power unit, a thick grating, a thin grating, a rotating device, a water receiving disc and a drain pipe;
the rotating device includes: the chain, the gear and the rake tooth group are arranged, the chain is enclosed into a trapezoid by the arrangement of a plurality of gears, and the width of the upper end of the chain is larger than that of the lower end of the chain;
the harrow tooth group quantity is a plurality of, harrow tooth group includes: the wall surface of the mounting rod is provided with a plurality of through grooves which are arranged at equal intervals, the number of the rake teeth is multiple, and the rake teeth are respectively meshed into the through grooves;
one side of one rack is provided with a first water inlet channel, the water outlet end of the first water inlet channel is positioned at the lower end of the inner periphery of the chain, the same side of the two racks is provided with a first water outlet channel, the tail end of the first water outlet channel is provided with a lifting water pump, a second water inlet channel is arranged above the first water outlet channel, the lifting water pump is communicated with the first water outlet channel and the second water inlet channel through a pipeline, one side of the other rack is provided with a second water outlet channel, and the water inlet end of the second water outlet channel is positioned at the upper end of the inner periphery of the chain;
the power unit is arranged on the top surface of the frame and is connected with a gear fixedly provided with a transmission shaft through a transmission belt;
the coarse grating is positioned on one side of the chain, and gaps of the coarse grating are strip-shaped;
the fine grating is positioned between the upper part of the chain and the second water inlet channel, the grating auxiliary ribs of the fine grating are provided with openings, and the distance between the openings is less than one centimeter;
the water pan is fixed between the two racks and is communicated with the water inlet end of the water outlet channel II, two ends of the water pan are slopes inclined in opposite directions, a filter opening is formed in the communication position of the water pan and the water outlet channel II, and the width of the filter opening is the same as the width of the gap of the thick grating;
the drainage pipe is connected with the water pan, one end of the drainage pipe penetrates through the rack, and the top surface of the joint of the drainage pipe and the water pan is an open surface.
Preferably, the upper ends of the two opposite wall surfaces of the rack are respectively provided with a supporting plate, the two supporting plates extend oppositely along the lower direction of the two chains in the second area, and then are bent upwards to be respectively attached to the two ends of the plurality of mounting rods in the second area.
Preferably, the two ends of each rake tooth are provided with a first end tooth and a second end tooth, the width of the second end tooth is larger than that of the first end tooth and the through groove, and the first end teeth of the rake teeth are connected with a positioning shaft together;
preferably, the thick grating combines the grating main ribs of the thick grating through a connecting plate, and the thick grating is fixed on the ground through a support rod;
preferably, the opposite wall surfaces of the rack are fixed on two sides of the fine grating, a chain extends out of one end of the fine grating, a second connecting plate is arranged at the extending position of the fine grating, main grating ribs and auxiliary grating ribs of the fine grating are combined through the second connecting plate, and a plurality of mounting rods at the upper end of the chain are attached to the bottom surface of the fine grating to provide supporting force for the fine grating;
preferably, an auger is arranged in the sewage discharge pipe, and the auger 82 is connected with a second motor.
The invention has the beneficial effects that:
the invention changes the structure of the sewage flow path and the rake teeth, and the thick grating and the thin grating are arranged in a centralized way, so that the integral degree of the equipment is high, on one hand, the occupied area is reduced, on the other hand, the coarse filtration and the fine filtration of the sewage can be completed through one power unit, and thus, the power unit and the energy consumption are reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
FIG. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a schematic structural view of the rotating mechanism of the present invention.
Fig. 5 is a top view of the rotating mechanism of the present invention.
Fig. 6 is a first diagram illustrating a rake tooth structure according to the present invention.
Fig. 7 is a schematic diagram of a rake tooth structure according to the present invention.
FIG. 8 is a schematic view of a coarse grid structure according to the present invention.
FIG. 9 is a schematic view of a fine grid structure according to the present invention.
FIG. 10 is the top view of the water pan and the sewage draining pipe.
FIG. 11 is a schematic view of the structure of one side of the drain pipe and the water pan of the present invention.
Fig. 12 is a schematic diagram of the movement of the rake teeth according to the first embodiment of the present invention.
Fig. 13 is a second schematic diagram of the movement of the rake teeth of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains, however, the present invention may be implemented in various forms, and thus, the present invention is not limited to the embodiments described below, and in addition, components not connected to the present invention will be omitted from the drawings for more clear description of the present invention.
As shown in fig. 1 to 3, a sewage filtering apparatus in a primary sewage treatment system includes: the device comprises a frame 1, a lifting water pump 2, a power unit 3, a thick grating 4, a thin grating 5, a rotating device 6, a water pan 7 and a sewage pipe 8;
the number of the racks 1 is two, and a coarse grating 4, a fine grating 5 and a rotating device 6 are arranged between the two racks 1;
as shown in fig. 4 to 5, the rotating device 6 includes: the chain 61, the gears 62 and the rake tooth group 63, the number of the chains 61 is two, the chains 61 are arranged in a trapezoid shape through the arrangement of a plurality of the gears 62, the width of the upper end of each chain 61 is larger than that of the lower end of each chain 61, a transmission shaft 621 is connected between the gears 62 at the lower ends of the two chains 61, the diameter of the transmission shaft 621 is smaller than that of the gear 62, and the chains 61 are divided into a first area 611, a second area 612, a third area 613 and a fourth area 614 along four edges;
the number of the rake teeth 63 is plural, and as shown in fig. 6 to 7, the rake teeth 63 includes: a plurality of mounting bars 631, rake teeth 632, and a positioning shaft 633, wherein the mounting bars 631 are equidistantly disposed between the two chains 61, wherein the two racks 1 are respectively provided with a support plate (not shown) at the upper end of the opposite wall surface, the two support plates extend along the lower direction of the two chains 61 of the second area 612, and then are bent upward to respectively attach to the two ends of the mounting bars 631 in the second area 612, so as to improve the strength of the mounting bars 631 located in the second area 612, the wall surface of the mounting bars 631 is provided with a plurality of through grooves arranged equidistantly, the number of the rake teeth 632 is multiple, the rake teeth 632 are respectively engaged into the through grooves, and thus the rake teeth 632 slide along the through grooves by natural gravity, the two ends of the rake teeth 632 are provided with a first end tooth 632-1 and a second end tooth 632-2, the width of the second end tooth 632-2 is greater than that of the first end tooth 632-1 and the through groove, and the first end teeth 632-1 of the plurality of rake teeth 632 are connected with a positioning shaft 633 together, so that the distance of the rake teeth 632 sliding on the through groove is limited by the positioning shaft 633 and the second end tooth 632-2, and the rake teeth 632 are convenient to mount, that is, the first end teeth 632-1 of the plurality of rake teeth 632 are inserted into the through groove and penetrate through the first end teeth 632-1 of the plurality of rake teeth 632 through the positioning shaft 633, the first end teeth 632-1 act on floating objects intercepted by the coarse grid 4, and the second end teeth 632-2 act on floating objects intercepted by the fine grid;
one side of one rack 1 is provided with a first water inlet channel 11, the water outlet end of the first water inlet channel 11 is positioned at the lower end of the inner periphery of the chain 61, the same side of the two racks 1 is provided with a first water outlet channel 12, the tail end of the first water outlet channel 12 is provided with a lifting water pump 2, a second water inlet channel 13 is arranged above the first water outlet channel 12, the lifting water pump 2 is communicated with the first water outlet channel 12 and the second water inlet channel 13 through a pipeline, one side of the other rack 1 is provided with a second water outlet channel 14, and the water inlet end of the second water outlet channel 14 is positioned at the upper end of the inner periphery of the chain 61;
the power unit 3 is arranged on the top surface of the rack 1, the power unit 3 consists of a motor, a speed reducer and a transmission belt, and two ends of the transmission belt are respectively connected with the speed reducer and a gear 62 connected with a transmission shaft 621 through belt pulleys;
the coarse grating 4 is positioned at one side of the first region 611 of the chain 61, the inclination angle of the coarse grating 4 is the same as that of the first region 611, as shown in fig. 8, the gap of the coarse grating 4 is strip-shaped, the main grating ribs of the coarse grating 4 are combined through a first connecting plate 41, the coarse grating 4 is fixed on the ground through a support rod 42, sewage enters between the two brackets 1 along a first water inlet channel 11, large floaters in the sewage are intercepted through the coarse grating 4, then the sewage enters a first water outlet channel 12, and simultaneously the first end teeth 631-1 of the rake teeth 631 lift the large floaters obliquely upwards;
the fine grid 5 is positioned between the second area 612 of the chain 61 and the second water inlet channel 13, the opposite wall surfaces of the frame are fixed on two sides of the fine grid 5, one end of the fine grid 5 extends out of the second area 612 of the chain 61, the extending part of the fine grid 5 is provided with a second connecting plate, the main grid bone and the auxiliary grid bone of the fine grid 5 are combined through the second connecting plate, as shown in fig. 9, the auxiliary grid bone of the fine grid 5 is provided with openings 51, the spacing of the openings 51 is smaller than one centimeter, the purpose is that when the rake teeth 63 move along the second area 612, the second end teeth 632 of the rake teeth 63 can pass through the openings 51, the rake teeth 63 are prevented from being blocked by the auxiliary grid bone of the fine grid 5, a plurality of mounting rods 631 in the second area 612 are attached to the bottom surface of the fine grid 5, a supporting force is provided for the fine grid 5, sewage enters the second water inlet channel 13 along the first water outlet channel 12 by lifting the water pump 2, the sewage naturally passes through the fine grid 5 along the water outlet end of the second water inlet channel 13, the small-blocking teeth 631 push the small floating objects towards the horizontal side of the small-floating object 631;
as shown in fig. 10-11, the water pan 7 is fixed between the two racks 1, the water pan 7 is communicated with the water inlet end of the second water outlet channel 14, two ends of the water pan 7 are slope surfaces inclined in opposite directions, a filter opening 71 is arranged at the communication position between the water pan 7 and the second water outlet channel 14, and the width of the filter opening 71 is the same as the gap width of the coarse grating 4;
the sewage pipe 8 is connected with the water pan 7 by ninety degrees included angle, the rack 1 is run through to the sewage pipe 8 one end, the top surface of the sewage pipe 8 and the water pan 7 junction is open face 81, and large and small floaters enter the sewage pipe 8 along the open face 81, be provided with the screw feeder 82 in the sewage pipe 8, the screw feeder 82 is connected with motor two 83.
The working principle of the invention is as follows:
sewage enters along the first water inlet channel 11, large-sized floating objects in the sewage are intercepted by the coarse grating 4, then the sewage enters the first water outlet channel 12, meanwhile, the first end teeth 631-1 of the rake teeth 631 incline upwards to lift the large-sized floating objects, so that the sewage is separated from the large-sized floating objects, when the rake teeth 631 move at the joint of the first area 611 and the second area 612, as shown in fig. 12, the rake teeth 631 turn over and further incline, the large-sized floating objects on the rake teeth 631 slide downwards into the water receiving tray 7, when the rake teeth 631 move to the second area 612, the rake teeth 631 are vertical, and through natural gravity, the first end teeth 631-1 of the rake teeth are downwards attached to the bottom surface of the water receiving tray 7;
sewage enters a second water inlet channel 13 through a lifting water pump 2, the sewage naturally flows downwards through a fine grid 5 along the water outlet end of the second water inlet channel 13, then flows to a sedimentation tank along a water receiving disc 7 and a second water outlet channel 14, the fine grid 5 intercepts small-sized floaters in the sewage, meanwhile, second end teeth 631-2 of a plurality of rake teeth 631 horizontally push the small-sized floaters to one side, and first end teeth 631-1 horizontally push large-sized floaters to one side in the water receiving disc 7, when the large-sized floaters respectively move to the tail ends of the fine grid 5 and the water receiving disc 7, the large-sized floaters enter a sewage discharge pipe 8 along an open surface 81, and are discharged outwards through the sewage discharge pipe 8;
when the rabble blade 631 moves to the third area, the rabble blade 631 slides obliquely downward by natural gravity as shown in fig. 13, so that the first end tooth 631-1 of the rabble blade 631 has a length smaller than that of the second end tooth 631-2, in order to prevent the first end tooth 631-1 from having an excessively long length and being caught by the driving shaft 621 while passing through the driving shaft 621.
Claims (6)
1. Sewage filtering device in one-level sewage treatment system includes: the device comprises a rack (1), a lifting water pump (2), a power unit (3), a coarse grating (4), a fine grating (5), a rotating device (6), a water receiving disc (7) and a sewage discharge pipe (8); the method is characterized in that: the rotating device (6) comprises: the chain rake comprises chains (61), gears (62) and rake tooth groups (63), wherein the number of the chains (61) is two, the chains (61) are enclosed into a trapezoid by arranging the gears (62), and the width of the upper end of each chain (61) is larger than that of the lower end of each chain;
the number of the rake teeth (63) is multiple, and the rake teeth (63) comprises: the wall surface of the mounting rod (631) is provided with a plurality of through grooves which are arranged at equal intervals, the number of the rake teeth (632) is multiple, and the rake teeth (632) are respectively meshed with the through grooves;
one side of one rack (1) is provided with a first water inlet channel (11), the water outlet end of the first water inlet channel (11) is located at the lower end of the inner periphery of the chain (61), the same side of the two racks (1) is provided with a first water outlet channel (12), the tail end of the first water outlet channel (12) is provided with a lifting water pump (2), a second water inlet channel (13) is arranged above the first water outlet channel (12), the lifting water pump (2) is communicated with the first water outlet channel (12) and the second water inlet channel (13) through a pipeline, one side of the other rack (1) is provided with a second water outlet channel (14), and the water inlet end of the second water outlet channel (14) is located at the upper end of the inner periphery of the chain (61);
the power unit (3) is arranged on the top surface of the rack (1), and the power unit (3) is connected with a gear (62) fixed with a transmission shaft (621) through a transmission belt;
the thick grating (4) is positioned on one side of the chain (61), gaps of the thick grating (4) are in a strip shape, the thin grating (5) is positioned between the upper part of the chain (61) and the water inlet channel II (13), openings (51) are formed in grating auxiliary ribs of the thin grating (5), and the distance between the openings (51) is less than one centimeter;
the water pan (7) is fixed between the two racks (1), the water pan (7) is communicated with the water inlet end of the water outlet channel II (14), two ends of the water pan (7) are slopes inclined in opposite directions, a filter opening (71) is formed in the communication position of the water pan (7) and the water outlet channel II (14), and the width of the filter opening (71) is the same as the gap width of the coarse grating (4);
the drainage pipe (8) is connected with the water receiving tray (7), one end of the drainage pipe (8) penetrates through the rack (1), and the top surface of the joint of the drainage pipe (8) and the water receiving tray (7) is an open surface (81).
2. The sewage filtering apparatus in a primary sewage treatment system according to claim 1, wherein: the upper ends of the opposite wall surfaces of the two racks (1) are respectively provided with a supporting plate, the two supporting plates extend oppositely along the lower direction of the two chains (61) in the second area (612) and then are bent upwards to be respectively attached to the two ends of the mounting rods (631) in the second area (612), and the purpose is to improve the strength of the mounting rods (631) in the second area (612).
3. The sewage filtering device in the primary sewage treatment system according to claim 1, wherein: the two ends of each rake tooth (632) are provided with a first end tooth (632-1) and a second end tooth (632-2), the width of each second end tooth (632-2) is larger than that of each first end tooth (632-1) and the through groove, the first end teeth (632-1) of the rake teeth (632) are connected with a positioning shaft (633) together, and the purpose of the positioning shaft is that the sliding distance of the rake teeth (632) on the through groove is limited through the positioning shaft (633) and the second end teeth (632-2), on the other hand, the installation of the rake teeth (632) is facilitated, namely, the first end teeth (632-1) of the rake teeth (632) are inserted into the through groove, and then the positioning shaft (633) penetrates through the first end teeth (632-1) of the rake teeth (632).
4. The sewage filtering device in the primary sewage treatment system according to claim 1, wherein: the thick grating (4) combines the main grating ribs of the thick grating (4) through a first connecting plate (41), and the thick grating (4) is fixed on the ground through a support rod (42).
5. The sewage filtering device in the primary sewage treatment system according to claim 1, wherein: the opposite wall of frame is fixed to thin grid (5) both sides, chain (61) are extended to thin grid (5) one end, and the extension department of thin grid (5) is provided with connecting plate two, makes up the grid main bone and the vice bone of grid of thin grid (5) through connecting plate two, and chain (61) upper end is a plurality of installation pole (631) laminating thin grid (5) bottom surface provides holding power to thin grid (5).
6. The sewage filtering apparatus in a primary sewage treatment system according to claim 1, wherein: an auger (82) is arranged in the sewage discharge pipe (8), and the auger (82) is connected with a second motor (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211015733.3A CN115400496B (en) | 2022-08-24 | 2022-08-24 | Sewage filtering device in primary sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211015733.3A CN115400496B (en) | 2022-08-24 | 2022-08-24 | Sewage filtering device in primary sewage treatment system |
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| CN115400496A true CN115400496A (en) | 2022-11-29 |
| CN115400496B CN115400496B (en) | 2024-07-12 |
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| CN109879542A (en) * | 2019-03-25 | 2019-06-14 | 杭州铭展网络科技有限公司 | A kind of sewage water treatment method |
| CN209797519U (en) * | 2019-03-25 | 2019-12-17 | 江苏新地环境工程有限公司 | Easy-to-clean installation-free type grating cleaner |
| CN110448956A (en) * | 2019-08-20 | 2019-11-15 | 四川天润德环境工程有限公司 | A kind of high-efficiency sewage equipment for separating liquid from solid |
| CN210710815U (en) * | 2019-10-08 | 2020-06-09 | 扬州市水世界环保设备有限公司 | Grid dirt removing machine |
| KR102096805B1 (en) * | 2019-11-26 | 2020-04-03 | 주식회사 신명엔텍 | Rotary type dust remover capable of saving driving power of rake |
| CN111569509A (en) * | 2020-06-01 | 2020-08-25 | 浙江金佰利环境科技有限公司 | Deep well aeration device and sewage treatment process thereof |
| CN213085492U (en) * | 2020-07-07 | 2021-04-30 | 武汉佳园环境工程有限公司 | Grid machine |
| CN211816050U (en) * | 2020-07-10 | 2020-10-30 | 胡勇飞 | Water conservancy grid of clearance rubbish |
| CN112057948A (en) * | 2020-09-07 | 2020-12-11 | 北京清源汇环境技术有限公司 | High-efficiency filtering device |
| CN213680063U (en) * | 2020-09-15 | 2021-07-13 | 简阳希望创美环保有限公司 | First-stage domestic sewage solid-liquid separation system |
| CN215195751U (en) * | 2021-01-20 | 2021-12-17 | 湖北庆中科技有限公司 | Efficient grid machine for sewage treatment |
| CN112939112A (en) * | 2021-02-03 | 2021-06-11 | 广州菊发电子商务有限公司 | Rotary type grating pollution discharge machine |
| CN214634648U (en) * | 2021-03-16 | 2021-11-09 | 福州百特环保设备有限公司 | Thick and thin grid integrated machine |
| CN113800699A (en) * | 2021-11-17 | 2021-12-17 | 枣庄东华水处理科技有限公司 | Recovery plant for waste water treatment |
| CN114130107A (en) * | 2022-02-08 | 2022-03-04 | 济南市槐荫区市政工程服务中心 | Be used in municipal sewage treatment plant's solid-liquid separation equipment |
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| CN115400496B (en) | 2024-07-12 |
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