CN115317994A - Non-immersion type pneumatic back-washing filtering device for breeding tail water - Google Patents
Non-immersion type pneumatic back-washing filtering device for breeding tail water Download PDFInfo
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- CN115317994A CN115317994A CN202210887327.XA CN202210887327A CN115317994A CN 115317994 A CN115317994 A CN 115317994A CN 202210887327 A CN202210887327 A CN 202210887327A CN 115317994 A CN115317994 A CN 115317994A
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- Prior art keywords
- sewage
- hollow shaft
- sludge
- immersion
- water
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D33/503—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles the backwash arms, shoes acting on the cake side
Abstract
The utility model provides a pneumatic back flush filter equipment of non-immersion for breeding tail water, includes water receiving tank subassembly, strains a subassembly and back flush trachea, adopts non-immersion filtration mode, strains a subassembly and can not last immersion water, can avoid filter equipment to be in the state that the aquatic received the corruption for a long time, has increased the life cycle of device, and the discrepancy of sewage and mud is all through being fixed in the inboard hollow shaft of drum grid, and device simple structure maintains the convenience, and non-immersion's filtration mode is higher than current immersion efficiency moreover. The invention adopts a pneumatic back washing mode, the sludge adhered to the filter screen is blown off by the back washing air pipe, the sludge can fall into the sewage receiving hopper to be uniformly discharged, the filter screens at different positions can be back washed by rotating the cylinder grating, the back washing efficiency is higher, the pollution to filtered purified water during back washing can be avoided, the chemical composition and the material proportion of the sewage to be treated can not be changed, and the water resource is saved.
Description
Technical Field
The invention relates to the field of culture tail water filtering devices, in particular to a non-immersion pneumatic backwashing filtering device for culture tail water.
Background
A large amount of culture tail water is generated in the culture process of aquatic products, sludge rich in solid waste biological fermentation resources exists in the culture tail water, the tail water is generally recycled to save water changing cost, and the recycling of biological purified water and solid waste biological fermentation can be realized after solid-liquid separation of the tail water. Most of the earliest microfilters were multi-layer screen filtration and provided with multiple standing water tanks, which was inefficient. At present, a drum-type micro-filter is commonly used and needs to be immersed in a water purifying tank for use, namely, the drum-type micro-filter belongs to an immersion type filtering device, the device can be in a corrosion-prone state in water for a long time in the using process, the corrosion time is long, the maintenance is inconvenient, in addition, as the device is immersed in the water, the device can only adopt a liquid back washing mode, the water resource is wasted, the water purifying component proportion is easily influenced, and the efficiency of direct filtering and the back washing is lower.
Disclosure of Invention
In order to solve the problems of the existing filtering device, the invention provides a non-immersion pneumatic backwashing filtering device for aquaculture tail water.
The technical scheme adopted by the invention for solving the technical problems is as follows: a non-immersion pneumatic backwashing filter device for breeding tail water comprises a water receiving tank assembly, a filter cartridge assembly and a backwashing air pipe, wherein the water receiving tank assembly comprises a water receiving tank, a bearing bush assembly and a motor, the top end of the water receiving tank is arranged in an open mode, the filter cartridge assembly comprises a cylindrical grating, a filter screen is arranged on the outer arc surface of the cylindrical grating, a large gear and a cover plate are respectively covered at two ends of the cylindrical grating, a hollow shaft and a sewage receiving funnel are arranged on the inner side of the cylindrical grating, the hollow shaft is arranged along the horizontal direction, the axis of the hollow shaft is overlapped with the axis of the cylindrical grating, two ends of the hollow shaft respectively penetrate through the large gear and the cover plate and extend to the outer side of the cylindrical grating, the large gear and the cover plate are respectively installed on the hollow shaft through respective bearings, the bearing bush assembly comprises a lower bearing bush and an upper bearing bush, the two lower bearing bushes are respectively installed at two sides of the water receiving tank along the length direction, two ends of the hollow shaft, which are positioned at the outer side of the cylindrical grating, are respectively placed on the two lower bearing bushes which are respectively matched with the hollow shaft,
the hollow shaft is internally provided with a sewage cavity and a sludge cavity which are separated from each other, one end of the hollow shaft, which is positioned outside the cylinder grating, is provided with a sewage inlet communicated with the sewage cavity, the other end of the hollow shaft, which is positioned outside the cylinder grating, is provided with a sludge outlet communicated with the sludge cavity, the side wall of the hollow shaft is provided with a plurality of sewage outlets and a sludge inlet, the plurality of sewage outlets are communicated with the sewage cavity, so that sewage flows into the cylinder grating from the sewage cavity and falls into a water receiving box after being filtered by a filter screen, the sludge inlet is communicated with the sludge cavity and is positioned at one side of the hollow shaft, which faces upwards, the sewage receiving funnel is arranged on the hollow shaft and is positioned at one side of the hollow shaft, the bottom opening cover of the sewage receiving funnel is arranged on the sludge inlet,
the utility model discloses a sewage treatment device, including drum grid, backflushing air pipe, hollow shaft, backflushing air pipe, a plurality of air holes have been seted up on the lateral wall that backflushing air pipe is close to the drum grid, and a plurality of air holes can cooperate and will be located the filter screen of drum grid one side up on the mud of adhesion blow down to connect dirty funnel in to be convenient for mud from connecing dirty funnel to fall into the mud chamber and see off from the sludge outlet, the motor is installed in the outside of water receiving tank for drive gear wheel rotates, thereby makes backflushing air pipe can blow down the mud of adhesion respectively on the filter screen of the different positions of drum grid.
Preferably, the sewage import and advance water piping connection, install the sewage pump on the inlet tube, the mud export is connected with a mud pipe, goes out to install the sludge pump on the mud pipe.
Preferably, a plurality of connecting beams are arranged between the large gear and the cover plate.
Preferably, the output shaft of the motor is provided with a pinion gear meshed with the gearwheel.
Preferably, one or more semi-ring brackets are installed on the bottom side of the sewage receiving hopper, and all the semi-ring brackets are installed on the outer arc surface of the hollow shaft.
Preferably, the top sides of the two upper bearing bushes are respectively provided with a support rod, and two ends of the back washing air pipe are respectively arranged at the top ends of the two support rods.
According to the technical scheme, the invention has the beneficial effects that:
the filtering device adopts a non-immersion filtering mode, the filter cartridge component can not be immersed in water continuously, the filtering device can be prevented from being in a state of being corroded in water for a long time, the life cycle of the device is prolonged, sewage and sludge can enter and exit through the hollow shaft fixed on the inner side of the cylindrical grating, the device is simple in structure and convenient to maintain, and the non-immersion filtering mode is higher in efficiency than the existing immersion filtering mode. The invention adopts a pneumatic back washing mode, the sludge adhered to the filter screen is blown off by the back washing air pipe, the sludge can fall into the sewage receiving hopper to be uniformly discharged, the filter screens at different positions can be back washed by rotating the cylinder grating, the back washing efficiency is higher, the pollution to filtered purified water during back washing can be avoided, the chemical composition and the material proportion of the sewage to be treated can not be changed, and the water resource is saved.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of a water-receiving tank assembly;
FIG. 3 is a schematic view of a filter cartridge assembly;
FIG. 4 is a schematic view of the internal structure of the filter cartridge assembly;
FIG. 5 is a schematic view of a hollow shaft;
FIG. 6 is a schematic view of the internal structure of the hollow shaft;
fig. 7 is a schematic view of a sewage receiving funnel.
The labels in the figure are: 1. the device comprises a water receiving box, 2, a lower bearing bush, 3, a motor, 4, a filter cartridge assembly, 5, an upper bearing bush, 6, a support rod, 7, a back flushing air pipe, 8, a hollow shaft, 9, a large gear, 10, a cover plate, 11, a cylindrical grating, 12, a filter screen, 13, a connecting beam, 14, a sewage receiving funnel, 15, a sewage outlet, 16, a sludge inlet, 17, a sewage cavity, 18, a sludge cavity, 19 and a semi-ring support.
Detailed Description
Referring to the drawings, the specific embodiments are as follows:
as shown in fig. 1, a non-immersion pneumatic backwashing filter device for breeding tail water comprises a water receiving tank assembly, a filter cartridge assembly 4 and a backwashing air pipe 7, as shown in fig. 2, the water receiving tank assembly comprises a water receiving tank 1, a bearing bush assembly and a motor 3, the top end of the water receiving tank 1 is arranged in an open manner, as shown in fig. 3, the filter cartridge assembly 4 comprises a cylinder grating 11, a filter screen 12 is arranged on the outer arc surface of the cylinder grating 11, a large gear 9 and a cover plate 10 are respectively arranged at two ends of the cylinder grating 11 in a covering manner, a hollow shaft 8 and a sewage receiving funnel 14 are arranged on the inner side of the cylinder grating 11, the hollow shaft 8 is arranged in the horizontal direction, the axis of the hollow shaft 8 is superposed with the axis of the cylinder grating 11, two ends of the hollow shaft 8 respectively penetrate through the large gear 9 and the cover plate 10 and extend to the outer side of the cylinder grating 11, the large gear 9 and the cover plate 10 are respectively installed on the hollow shaft 8 through respective bearings, namely, the cylinder grating 11, the large gear 9 and the cover plate 10 can freely rotate on the hollow shaft 8, and the cover plate 10, and a plurality of connecting beams 13 are also arranged between the large gear 9 and the cover plate 10.
As shown in fig. 1 and 2, the bearing bush assembly includes lower bearing bushes 2 and upper bearing bushes 5, the two lower bearing bushes 2 are respectively installed at two sides of the water receiving tank 1 along the length direction, two ends of the hollow shaft 8 located at the outer side of the cylindrical grating 11 are respectively placed on the two lower bearing bushes 2, the upper bearing bushes 5 matched with the hollow shaft 8 are respectively installed on the two lower bearing bushes 2, the top sides of the two upper bearing bushes 5 are respectively provided with a support rod 6, and two ends of the back-washing air pipe 7 are respectively installed at the top ends of the two support rods 6.
As shown in fig. 6, a sewage chamber 17 and a sludge chamber 18 which are mutually separated are arranged in the hollow shaft 8, a sewage inlet communicated with the sewage chamber 17 is arranged at one end of the hollow shaft 8 which is positioned outside the cylinder grating 11, the sewage inlet is connected with a water inlet pipe, a sewage pump is arranged on the water inlet pipe, a sludge outlet communicated with the sludge chamber 18 is arranged at the other end of the hollow shaft 8 which is positioned outside the cylinder grating 11, the sludge outlet is connected with a sludge outlet pipe, and the sludge outlet pipe is provided with a sludge pump.
As shown in fig. 5 and 6, a plurality of sewage outlets 15 and a sludge inlet 16 are formed on the side wall of the hollow shaft 8, the plurality of sewage outlets 15 are all communicated with the sewage cavity 17, so that sewage flows into the cylindrical grating 11 from the sewage cavity 17 and falls into the water receiving tank 1 after being filtered by the filter screen 12, and the sludge inlet 16 is communicated with the sludge cavity 18 and is located on the upward side of the hollow shaft 8.
As shown in fig. 4, the sewage receiving funnel 14 is installed on the hollow shaft 8 and located at one side of the hollow shaft 8 facing upwards, as shown in fig. 7, one or more half-ring brackets 19 are installed at the bottom side of the sewage receiving funnel 14, all the half-ring brackets 19 are installed on the outer arc surface of the hollow shaft 8, and the bottom end opening of the sewage receiving funnel 14 is covered on the sludge inlet 16.
As shown in fig. 1, the backwash air pipe 7 is installed on the upward outer side of the cylindrical grating 11, the backwash air pipe 7 is arranged in parallel with the hollow shaft 8, a plurality of air blowing holes are formed in the side wall, close to the cylindrical grating 11, of the backwash air pipe 7, the air blowing holes can be matched with sludge adhered to the filter screen 12 on the upward side of the cylindrical grating 11 to be blown down into the sludge receiving hopper 14, so that the sludge can fall into the sludge cavity 18 from the sludge receiving hopper 14 and be sent out from a sludge outlet, the motor 3 is installed on the outer side of the water receiving box 1, and a pinion meshed with the gearwheel 9 is installed on an output shaft of the motor 3 and used for driving the gearwheel 9 to rotate, so that the backwash air pipe 7 can respectively blow down sludge adhered to the filter screens 12 on different positions of the cylindrical grating 11.
When filtering breeding the tail-water, continuously deliver to sewage import with sewage through the inlet tube, then sewage can follow in the sewage export 15 outflow to it is inboard to fall into drum grid 11, and sewage can continue to fall into water receiving tank 1 after being filtered by filter screen 12, can leave filterable mud on the filter screen 12. In the process, the motor 3 is started to enable the cylindrical grating 11 to keep rotating, so that the filter screens 12 at all circumferential positions of the cylindrical grating 11 can be filtered, and the static water obtained in the water receiving tank 1 can be taken at any time.
When the filter screen 12 is filled with a large amount of sludge, the filter screen 12 is backwashed, the sewage delivery is stopped, the rotation of the cylindrical grid 11 is kept, then the air pump is periodically opened, the backwashing operation is sequentially performed on different positions of the filter screen 12 by using the backwashing air pipe 7, the sludge is continuously blown down from the top side of the cylindrical grid 11 into the sewage receiving hopper 14, then falls into the sludge cavity 18 through the sludge inlet 16 and is uniformly delivered out from the sludge outlet, and after the sludge accumulated on the filter screen 12 is basically cleaned up, the air blowing of the backwashing air pipe 7 can be stopped, and the culture tail water is filtered again.
Claims (6)
1. The utility model provides a pneumatic back flush filter equipment of non-immersion for breeding tail water which characterized in that: comprises a water receiving tank assembly, a filter cartridge assembly (4) and a backwashing air pipe (7), wherein the water receiving tank assembly comprises a water receiving tank (1), a bearing bush assembly and a motor (3), the top end of the water receiving tank (1) is arranged in an open manner, the filter cartridge assembly (4) comprises a cylindrical grating (11), a filter screen (12) is arranged on the outer arc surface of the cylindrical grating (11), a large gear (9) and a cover plate (10) are respectively covered at two ends of the cylindrical grating (11), a hollow shaft (8) and a sewage receiving funnel (14) are arranged at the inner side of the cylindrical grating (11), the hollow shaft (8) is arranged along the horizontal direction, the axis of the hollow shaft (8) is superposed with the axis of the cylindrical grating (11), two ends of the hollow shaft (8) respectively penetrate through the large gear (9) and the cover plate (10) and extend to the outer side of the cylindrical grating (11), the large gear (9) and the cover plate (10) are respectively arranged on the hollow shaft (8) through respective bearings, the lower bearing bush (2) and the upper bearing bush (5), two lower bearing bushes (2) are respectively arranged at two sides of the water receiving tank (1), the two lower bearing bush (8) are respectively arranged at two ends and the upper end of the hollow shaft (2) which are respectively matched with the hollow shaft (11),
the hollow shaft (8) is internally provided with a sewage cavity (17) and a sludge cavity (18) which are mutually separated, one end of the hollow shaft (8) positioned outside the cylinder grating (11) is provided with a sewage inlet communicated with the sewage cavity (17), the other end of the hollow shaft (8) positioned outside the cylinder grating (11) is provided with a sludge outlet communicated with the sludge cavity (18), the side wall of the hollow shaft (8) is provided with a plurality of sewage outlets (15) and a sludge inlet (16), the plurality of sewage outlets (15) are communicated with the sewage cavity (17), so that sewage flows into the cylinder grating (11) from the sewage cavity (17) and falls into the water receiving box (1) after being filtered by the filter screen (12), the sludge inlet (16) is communicated with the sludge cavity (18) and positioned on one side of the hollow shaft (8) facing upwards, the sewage receiving funnel (14) is arranged on the hollow shaft (8) and positioned on one side of the hollow shaft (8) facing upwards, the bottom end opening cover of the sewage receiving funnel (14) is arranged on the sludge inlet (16),
back flush trachea (7) are installed in drum grid (11) outside up, back flush trachea (7) and hollow shaft (8) parallel arrangement, have seted up a plurality of gas holes on the lateral wall that back flush trachea (7) are close to drum grid (11), and a plurality of gas holes can cooperate will be located drum grid (11) filter screen (12) of one side up and go up the mud of adhesion and blow down to connect in dirty funnel (14) to sludge falls into mud chamber (18) and sends out from the mud export from connecing dirty funnel (14), motor (3) are installed in the outside of water receiving case (1), are used for driving gear wheel (9) to rotate, thereby make back flush trachea (7) can blow down the mud of adhesion respectively on the filter screen (12) of drum grid (11) different positions.
2. The non-immersion pneumatic backwashing filter device for the aquaculture tail water of claim 1, wherein: the sewage import and advance water piping connection, install the sewage pump on the inlet tube, mud export and play mud union coupling go out to install the sludge pump on the mud pipe.
3. The non-immersion pneumatic backwashing filter device for the aquaculture tail water of claim 1, wherein: a plurality of connecting beams (13) are arranged between the bull gear (9) and the cover plate (10).
4. The non-immersion pneumatic backwashing filter device for the aquaculture tail water of claim 1, wherein: and a pinion meshed with the large gear (9) is arranged on an output shaft of the motor (3).
5. The non-immersion pneumatic backwashing filter device for the aquaculture tail water of claim 1, wherein: one or more semi-ring brackets (19) are installed on the bottom side of the sewage receiving hopper (14), and all the semi-ring brackets (19) are installed on the outer arc surface of the hollow shaft (8).
6. The non-immersion pneumatic backwashing filter device for the aquaculture tail water of claim 1, wherein: the top sides of the two upper bearing bushes (5) are respectively provided with a supporting rod (6), and the two ends of the back washing air pipe (7) are respectively arranged at the top ends of the two supporting rods (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210887327.XA CN115317994A (en) | 2022-07-26 | 2022-07-26 | Non-immersion type pneumatic back-washing filtering device for breeding tail water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210887327.XA CN115317994A (en) | 2022-07-26 | 2022-07-26 | Non-immersion type pneumatic back-washing filtering device for breeding tail water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115317994A true CN115317994A (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210887327.XA Pending CN115317994A (en) | 2022-07-26 | 2022-07-26 | Non-immersion type pneumatic back-washing filtering device for breeding tail water |
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| CN (1) | CN115317994A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1039960A1 (en) * | 1998-10-14 | 2000-10-04 | Gene Hirs | Filter |
| CN102743914A (en) * | 2011-04-18 | 2012-10-24 | 郭丰时 | Unpowered spinning microstrainer |
| CN205182325U (en) * | 2015-11-16 | 2016-04-27 | 北京华夏源洁水务科技有限公司 | Driven type rotary drum (cone -element) micro -filtration device |
| CN105597416A (en) * | 2016-03-23 | 2016-05-25 | 中国科学院水生生物研究所 | Method and device for air-backwashing and continuously concentrating algae slurry |
| CN110467330A (en) * | 2019-09-17 | 2019-11-19 | 重庆市农业科学院 | A kind of cycle water fish-cultivating fish excrement sewage concentration device and cycle water fish-cultivating excrement sewage concentration reclaiming system |
| CN111437647A (en) * | 2020-05-28 | 2020-07-24 | 岳阳佰胜智慧环保科技有限公司 | Internal inflow non-metal roller grid cleaner and using method thereof |
| CN114130102A (en) * | 2021-10-22 | 2022-03-04 | 北京恒泰源盛高科技有限公司 | Vacuum rotary drum filtration system |
-
2022
- 2022-07-26 CN CN202210887327.XA patent/CN115317994A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1039960A1 (en) * | 1998-10-14 | 2000-10-04 | Gene Hirs | Filter |
| CN102743914A (en) * | 2011-04-18 | 2012-10-24 | 郭丰时 | Unpowered spinning microstrainer |
| CN205182325U (en) * | 2015-11-16 | 2016-04-27 | 北京华夏源洁水务科技有限公司 | Driven type rotary drum (cone -element) micro -filtration device |
| CN105597416A (en) * | 2016-03-23 | 2016-05-25 | 中国科学院水生生物研究所 | Method and device for air-backwashing and continuously concentrating algae slurry |
| CN110467330A (en) * | 2019-09-17 | 2019-11-19 | 重庆市农业科学院 | A kind of cycle water fish-cultivating fish excrement sewage concentration device and cycle water fish-cultivating excrement sewage concentration reclaiming system |
| CN111437647A (en) * | 2020-05-28 | 2020-07-24 | 岳阳佰胜智慧环保科技有限公司 | Internal inflow non-metal roller grid cleaner and using method thereof |
| CN114130102A (en) * | 2021-10-22 | 2022-03-04 | 北京恒泰源盛高科技有限公司 | Vacuum rotary drum filtration system |
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