CN102921210B - Unpowered automatic back-flushing screening device for culture water treatment - Google Patents
Unpowered automatic back-flushing screening device for culture water treatment Download PDFInfo
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- CN102921210B CN102921210B CN201210451924.4A CN201210451924A CN102921210B CN 102921210 B CN102921210 B CN 102921210B CN 201210451924 A CN201210451924 A CN 201210451924A CN 102921210 B CN102921210 B CN 102921210B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 238000011010 flushing procedure Methods 0.000 title abstract description 11
- 239000010865 sewage Substances 0.000 claims abstract description 29
- 238000009360 aquaculture Methods 0.000 claims description 27
- 244000144974 aquaculture Species 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000011001 backwashing Methods 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 210000000088 Lip Anatomy 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
An unpowered automatic back-flushing screening device for culture water treatment comprises a water tank (1), a sieve plate (2) and a back-flushing water bucket (3). The unpowered automatic back-flushing screening device for the culture water treatment is characterized in that the top of the water tank (1) is provided with an upward opening, and the side wall of the water tank (1) is provided with a culture sewage inlet pipe (10) which is communicated with an overflow groove (9) arranged in the water tank (1); a clear water groove is formed at the bottom of the water tank (1) and provided with a filtered clear water discharge pipe (11), and a sewage collecting groove (13) is arranged at one end of the clear water groove in separating mode through a separating plate; the sieve plate (2) is disposed in the water tank (1) in inclined mode, the higher end of the sieve plate (2) is arranged below an overfall gap of the overflow groove (9), and a sieve plate sundry discharge outlet (7) at the lower end of the sieve plate (2) is arranged above the separating plate of the sewage collecting groove (13) of the water tank (1); and the back-flushing water bucket (3) is a cuboid bucket type water barrel. The unpowered automatic back-flushing screening device for the culture water treatment has the advantages of automatic back-flushing, unpowered operation and adjustable back-flushing intervals.
Description
Technical field
The present invention relates to a kind of screen apparatus, specifically, is the unpowered automatic backwash screen apparatus of a kind of aquaculture water process.
Background technology
Existing aquaculture water process sieving equipment is as rotary drum Microfilter, belt filter etc., and filtering accuracy is high, and automaticity is also higher.Chinese patent CN202105484U discloses a kind of sieve bend filtering device for aquaculture on January 11st, 2012, comprising water tank, sieve bend and automatic flushing device, water tank bottom forms Rinsing Area, Rinsing Area side is provided with outlet pipe, on front side of water tank, upper end is provided with overflow launder, and overflow launder lateral wall is provided with water inlet pipe; Sieve bend dictyosome upper end is connected to overflow launder upper inside edges, and its lower end is connected to the sewage sump upper inside edges being fixed on water tank bottom, is provided with sewage draining exit bottom sewage sump; Automatic flushing device is made up of cleaning brush and drive unit, the bottom surface of cleaning brush is consistent with sieve bend and sewage sump inner surface configuration, drive unit comprises motor, reduction box and transmission mechanism, transmission mechanism is then made up of threaded screw rod and traveling nut, is also respectively equipped with travel switch at threaded screw rod two ends.Advantageously also be provided with programmable timer in drive unit, cleaning brush thus regularly can be driven to be parallel to sieve bend in the horizontal direction and move back and forth the contamination removing sieve bend wire side.But this sieving device drives device comprises the devices such as motor, reduction box and transmission mechanism, and while its filtering accuracy is higher, its cost is also relatively high, and due to the transmission mechanism of complexity and power backwash design, often fault rate is also higher.
Chinese patent CN 101134150B discloses a kind of screening and sieving apparatus for water treatment on January 12nd, 2011, comprising deslagging device, slag-draining device, casing, frame and tank provided thereon, tank both sides are provided with water inlet and delivery port, and water inlet side is provided with fluid level indicator and overflow lip.Deslagging device is " factory " shape structure, and its one end is inclined in tank, and the other end is connected with slag-draining device.Deslagging device system is provided with drive roll and follower rollers " factory " shape support by two ends forms with the filter cloth being located at its periphery, and " factory " shape support bending part is provided with the back-up roller of adjustable filter cloth degree of tightness.The nearly drive roll end of support is provided with air blow-off device and spatula.Support between air blow-off device and back-up roller is provided with nozzle.Slag-draining device is located at below deslagging device slag output end, is to be made up of motor, conveying worm, slag notch and the press cylinder that is connected with helical feed machine tail end, and helical feed machine tail end is provided with the filter cloth of its periphery of parcel, nozzle and pressing filtering liquid outlet.Although this invention has compact conformation, floor space is little, applied widely, cost is low, operational efficiency high, its motor, conveying worm, slag notch and also very high with the energy consumption of conveying worm.
Therefore, in aquaculture water process, especially in sea farming system, parts, once be corroded, just likely cause the paralysis of equipment.In addition, this known kind equipment all needs power due to the design of transmission mechanism and backwash, all can produce certain operation energy consumption.
Summary of the invention
Object of the present invention, is the unpowered automatic backwash screen apparatus of aquaculture water process proposing a kind of environmental protection, do not consume energy.
For achieving the above object, technical solution of the present invention is:
The unpowered automatic backwash screen apparatus of a kind of aquaculture water process, comprise water tank, sieve plate and backwash bucket, is characterized in that:
Described water tank is rectangular box, top upward opening, and a sidewall is provided with aquaculture wastewater water inlet pipe, the overflow launder be separated out by L shape dividing plate in sewage water inlet pipe joining water box, and the vertical partition plate of overflow launder connects a small gangs of water water inlet pipe communicated with overflow launder; Rinsing Area is formed at water tank bottom, Rinsing Area is provided with filtering water discharge pipe, and being separated out a sewage sump at the opposite side vertical clapboard that Rinsing Area is corresponding with sewage water inlet pipe, sewage sump vertical clapboard is higher than Rinsing Area, and sewage sump (13) is provided with the dirt discharge pipe discharging dirt;
Described sieve plate is rectangular, and in the tilted setting of water tank, below its high-end gap being arranged at overflow launder, the sieve plate foreign material outlet of low side is arranged at above the sewage sump dividing plate of water tank;
Described backwash bucket is a cuboid bucket type bucket, bucket upper end is inclined-plane opening, the other end is at the bottom of closed vat, backwash bucket is fixed with an eccentrically weighted shaft in the middle of relative both sides, the position of eccentrically weighted shaft is in the center of gravity of backwashing water bucket, the two ends adjustable shelf of eccentrically weighted shaft is located at water tank two side, is provided with a positive stop above eccentrically weighted shaft, is thereunder provided with the rotational angle that a positive stop controls backwash bucket; The inclined-plane opening of described backwash bucket can accept the discharge water of shallow bid water water inlet pipe, and backwash bucket gradually filled with water time can tumble to side, institute's filled with water is poured on sieve plate.
The unpowered automatic backwash screen apparatus of aquaculture water process of the present invention can also be further achieved by the following technical measures.
The unpowered automatic backwash screen apparatus of aforesaid aquaculture water process, wherein said tank inner wall is made up of 316L stainless steel.
The unpowered automatic backwash screen apparatus of aforesaid aquaculture water process, wherein said sieve plate is made up of 316L stainless steel.
The unpowered automatic backwash screen apparatus of aforesaid aquaculture water process, wherein said sieve plate is wedge wire screen, its gap width 0.1 ~ 0.2mm.
The unpowered automatic backwash screen apparatus of aforesaid aquaculture water process, wherein said backwash bucket can control the time interval of backwash by the time length of filled with water.The technical program can adopt and change backwashing water bucket volume size, or changes the time interval that shallow bid water water inlet pipe uninterrupted realizes controlling backwash.
After adopting technique scheme, the unpowered automatic backwash screen apparatus of aquaculture water process of the present invention has the following advantages:
1, automatic backwash, without the need to manual intervention, can complete sieve plate cleaning voluntarily, avoid too much human cost;
2, unpowered work, the whole unpowered work of whole device, transmission mechanism-free, except sieve plate, miscellaneous part can use nonmetallic materials to make, and avoids material corrosion, operational failure;
3, backwash interval is adjustable, by regulating the flow of backwash water inlet pipe, backwash bucket just can be regulated to fill the time length control backwash interval time of water.
Accompanying drawing explanation
Fig. 1 is the structural representation of aquaculture water process of the present invention with unpowered automatic backwash screen apparatus;
Fig. 2 is the structural representation of backwash bucket of the present invention.
In figure: 1 water tank, 2 sieve plates, 3 backwash buckets, 4 eccentrically weighted shafts, 5 upper limit blocks, 6 lower limit blocks, 7 sieve plate foreign material outlets, 8 shallow bid water water inlet pipes, 9 overflow launders, 10 sewage water inlet pipes, 11 filtering water discharge pipes, 12 dirt discharge pipes, 13 sewage sumps, 14 inclined-plane openings, 15 the 1st backwash bucket bottoms, 16 the 2nd backwash bucket bottoms.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Now refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of aquaculture water process of the present invention with unpowered automatic backwash screen apparatus, and Fig. 2 is the structural representation of backwash bucket of the present invention.As shown in the figure, described water tank 1 is the rectangular box that inwall is made up of 316L stainless steel, top upward opening, one sidewall is provided with aquaculture wastewater water inlet pipe 10, the overflow launder 9 be separated out by L shape dividing plate in sewage water inlet pipe 10 joining water box 1, the vertical partition plate of overflow launder 9 connects a small gangs of water water inlet pipe 8 communicated with overflow launder 9; Rinsing Area is formed at water tank 1 bottom, Rinsing Area is provided with filtering water discharge pipe 11, and being separated out a sewage sump 13 at the opposite side vertical clapboard that Rinsing Area is corresponding with sewage water inlet pipe 10, sewage sump 13 vertical clapboard is higher than Rinsing Area, and sewage sump 13 is provided with the dirt discharge pipe 12 discharging dirt;
Described sieve plate 2 is rectangular, and in the tilted setting of water tank 1, below its high-end gap being arranged at overflow launder 9, the sieve plate foreign material outlet 7 of low side is arranged at above sewage sump 13 dividing plate of water tank 1; The wedge wire screen that described sieve plate 2 is made up of 316L stainless steel, its gap width 0.1mm.
Described backwash bucket 3 is a cuboid bucket type bucket, bucket upper end is inclined-plane opening 14, the other end is at the bottom of closed vat, backwash bucket 3 is fixed with an eccentrically weighted shaft 4 in the middle of relative both sides, the position of eccentrically weighted shaft 4 is in the center of gravity of backwashing water bucket 3, the two ends adjustable shelf of eccentrically weighted shaft 4 is located at water tank 1 two side, is provided with a positive stop 5 above eccentrically weighted shaft 4, is thereunder provided with the rotational angle that a positive stop 6 controls backwash bucket 3; The inclined-plane opening 14 of described backwash bucket 3 can accept the discharge water of shallow bid water water inlet pipe 8, and backwash bucket 3 gradually filled with water time can tumble to side, institute's filled with water is poured on sieve plate 2.Described backwash bucket can control the time interval of backwash by the time length of filled with water.The technical program can adopt and change backwashing water bucket volume size, or changes the time interval that shallow bid water water inlet pipe uninterrupted realizes controlling backwash.
Aquaculture water process of the present invention is as follows by the duty of unpowered automatic backwash screen apparatus:
Aquaculture wastewater is divided into two-way after entering water tank 1: flow into one piece of sieve plate be in tilted layout 2 after (1) most of sewage climbs over weir wall, and particle is to being trapped on sieve plate, and clean water flows out from delivery port through behind sieve plate gap; (2) another shallow bid current enter shallow bid water water inlet pipe 8, and the inclined-plane opening 14 of backwash bucket can accept the discharge water of shallow bid water water inlet pipe 8, and backwash bucket gradually filled with water time cause backwash bucket to flip to one side due to the weight of water.A positive stop 5 is provided with above eccentrically weighted shaft 4, when backwash bucket 3 fills with upset due to water, institute's filled with water is poured on sieve plate 2 and carries out backwash, now the 1st backwash bucket bottom 15 of backwash bucket 3 is stopped by upper limit block 5, also returned by stop after namely backwash bucket 3 is finished down water, when rinsing bucket 3 and returning, 2nd backwash bucket bottom 16 of backwash bucket 3 is stopped the discharge water making it return to original position continuation undertaking shallow bid water water inlet pipe 8 by lower limit block 6, go round and begin again continuous circulation flushing sieve plate 2 thus.The particle that sieve plate 2 retains is washed, and washes away the particle got off and finally imports sewage sump discharge.
The present invention has substantive distinguishing features and significant technological progress, aquaculture water process of the present invention with unpowered automatic backwash screen apparatus be a kind of environmental protection, the aquaculture water process of not consuming energy carries out unpowered work with unpowered automatic backwash screen apparatus, automatic backwash, without the need to manual intervention.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (5)
1. the unpowered automatic backwash screen apparatus of aquaculture water process, comprises water tank (1), and sieve plate (2) and backwash bucket (3), is characterized in that:
Described water tank (1) is rectangular box, top upward opening, one sidewall is provided with aquaculture wastewater water inlet pipe (10), the overflow launder (9) be separated out by L shape dividing plate in sewage water inlet pipe (10) joining water box (1), the vertical partition plate of overflow launder (9) connects a small gangs of water water inlet pipe (8) communicated with overflow launder (9); Rinsing Area is formed at water tank (1) bottom, Rinsing Area is provided with filtering water discharge pipe (11), and be separated out a sewage sump (13) at the opposite side vertical clapboard that Rinsing Area is corresponding with sewage water inlet pipe (10), sewage sump (13) vertical clapboard is higher than Rinsing Area, and sewage sump (13) is provided with the dirt discharge pipe (12) discharging dirt;
Described sieve plate (2) is rectangular, and in water tank (1) tilted setting, below its high-end gap being arranged at overflow launder (9), the sieve plate foreign material outlet (7) of low side is arranged at above sewage sump (13) dividing plate of water tank (1);
Described backwash bucket (3) is a cuboid bucket type bucket, bucket upper end is inclined-plane opening (14), the other end is at the bottom of closed vat, backwash bucket (3) is fixed with an eccentrically weighted shaft (4) in the middle of relative both sides, the position of eccentrically weighted shaft (4) is in the center of gravity of backwashing water bucket (3), the two ends adjustable shelf of eccentrically weighted shaft (4) is located at water tank (1) two side, be provided with a positive stop (5) in the top of eccentrically weighted shaft (4), be thereunder provided with the rotational angle that a positive stop (6) controls backwash bucket (3); The inclined-plane opening (14) of described backwash bucket (3) can accept the discharge water of shallow bid water water inlet pipe (8), and backwash bucket (3) gradually filled with water time can tumble to side, institute's filled with water is poured on sieve plate (2).
2. the unpowered automatic backwash screen apparatus of aquaculture water process as claimed in claim 1, it is characterized in that, described water tank (1) inwall is made up of 316L stainless steel.
3. the unpowered automatic backwash screen apparatus of aquaculture water process as claimed in claim 1, it is characterized in that, described sieve plate (2) is made up of 316L stainless steel.
4. the unpowered automatic backwash screen apparatus of the aquaculture water process as described in claim 1 or 3, is characterized in that, described sieve plate (2) is wedge wire screen, its gap width 0.1 ~ 0.2mm.
5. the unpowered automatic backwash screen apparatus of aquaculture water process as claimed in claim 1, is characterized in that, described backwash bucket (3) can control the time interval of backwash by the time length of filled with water.
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CN103713337A (en) * | 2014-01-09 | 2014-04-09 | 南京斯比特电子科技有限公司 | Bevel-opening tipping bucket |
CN103961921B (en) * | 2014-05-13 | 2015-12-02 | 泰顺派友科技服务有限公司 | Circulating water culture system conical screen auto-flushing machine people device |
CN108159753B (en) * | 2017-12-28 | 2019-11-05 | 陕西理工大学 | A kind of sewage bulk impurity filtering device |
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CN2133621Y (en) * | 1992-05-28 | 1993-05-19 | 林作勇 | Washing unit |
CN2453054Y (en) * | 2000-12-12 | 2001-10-10 | 张理 | Water saving type flushing means for toilet |
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CN101982622A (en) * | 2010-10-21 | 2011-03-02 | 清华大学 | Quality-graded collecting and purifying process and system for rainfall runoff |
CN202105484U (en) * | 2010-11-11 | 2012-01-11 | 中国水产科学院研究所渔业机械仪器研究所 | Sieve bend filtering device for aquaculture |
CN202876475U (en) * | 2012-11-12 | 2013-04-17 | 中国水产科学研究院渔业机械仪器研究所 | Unpowered automatic backflush screening device for aquaculture water treatment |
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2012
- 2012-11-12 CN CN201210451924.4A patent/CN102921210B/en not_active Expired - Fee Related
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CN2133621Y (en) * | 1992-05-28 | 1993-05-19 | 林作勇 | Washing unit |
CN2453054Y (en) * | 2000-12-12 | 2001-10-10 | 张理 | Water saving type flushing means for toilet |
WO2005115585A1 (en) * | 2004-05-18 | 2005-12-08 | Sungshin Engineering Co., Ltd | Gravity type fiber filter |
CN101134150A (en) * | 2006-08-29 | 2008-03-05 | 黄伟飞 | Screening and sieving apparatus for water treatment |
CN101982622A (en) * | 2010-10-21 | 2011-03-02 | 清华大学 | Quality-graded collecting and purifying process and system for rainfall runoff |
CN202105484U (en) * | 2010-11-11 | 2012-01-11 | 中国水产科学院研究所渔业机械仪器研究所 | Sieve bend filtering device for aquaculture |
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