CN107459219B - Purifying structure for cyclone reinforced filtration and purifying method thereof - Google Patents
Purifying structure for cyclone reinforced filtration and purifying method thereof Download PDFInfo
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- CN107459219B CN107459219B CN201710860030.3A CN201710860030A CN107459219B CN 107459219 B CN107459219 B CN 107459219B CN 201710860030 A CN201710860030 A CN 201710860030A CN 107459219 B CN107459219 B CN 107459219B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
- C02F1/385—Treatment of water, waste water, or sewage by centrifugal separation by centrifuging suspensions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
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Abstract
The invention provides a purifying structure for cyclone reinforced filtration and a purifying method thereof, comprising a shell 1, a biological filter material layer, a water inlet pipeline, a vortex water outlet and a mud discharge port; the biological filter material layers are arranged in the shell 1 at intervals, the purification structure main body is divided into two areas, a back flushing water inlet area is arranged in the area between the biological filter material layers and the shell, and a cyclone filtering area is arranged in the biological filter material layers; due to the centrifugal separation effect, pollutants carried in the water body are accumulated and settled and then discharged from a mud discharge port; when the biological filler layer is blocked or after a certain time of operation, a back flushing step is carried out to flush away dirt deposited in the biological filter layer, so that the adsorption and degradation efficiency is improved. The invention organically combines the rotational flow and the filtering technology, and can better purify the water body in a limited space; and simultaneously, the service life of the biological filler layer is greatly prolonged through back flushing operation.
Description
Technical Field
The invention belongs to the technical field of water treatment equipment, and relates to a cyclone reinforced filtering purification structure and a purification method thereof.
Background
With the rapid development of human beings, forests, wetlands, grasslands and the like in natural areas are continuously replaced by roads, squares, buildings and the like, and the scale of cities is continuously expanding, so that the problems of urban hydrology, water quality, water resources and the like are increasingly prominent. The sewage mainly comprises domestic sewage, industrial wastewater and initial rainwater. A large number of researches show that the particles are main carriers of various pollutants in the sewage, play roles in early stage pollutant adsorption, middle stage pollutant transportation and later stage pollutant sedimentation release in the sewage, and meanwhile, the particles are important water quality indexes for influencing the transparency and turbidity of the water body.
While domestic wastewater treatment is being put into progress in developed countries, further fumbling and attempts are needed. Domestic sewage treatment measures mainly comprise two types: a filtration interception method and a natural sedimentation method. The filtering interception method is to construct a plurality of filtering systems manually, introduce the sewage into the filtering systems for simple filtering treatment, such as adopting different stages of stone-matched blind ditches or perforated concrete filter plates, and the like for simple filtering of the sewage. The filtering interception method has the defects that a filtering interception system is easy to block and lose efficacy, cleaning service is difficult after losing efficacy, and the like. The natural sedimentation method is to construct a sewage regulating and accumulating tank, discharge sewage into the regulating and accumulating tank and remove pollutants in the sewage through gravity sedimentation. But has the problems of large occupied area of the sewage regulating and accumulating tank, large manual cleaning difficulty, incapability of continuous operation and the like.
Disclosure of Invention
In order to solve the problem of removing sewage or different water pollutants, the invention provides a cyclone reinforced filtering purification structure and a purification method thereof. The invention organically combines the vortex and filtering technologies, and can remove most of large particles in the water body by the vortex deposition separation technology; meanwhile, due to the filtering and intercepting effects of the biological filler layer, the capturing capacity of pollutants in the water body is further improved, and the biological film formed on the biological filler layer can well degrade organic matters in sewage, so that the quality of the discharged water is further improved. The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a purification structure of swirl reinforced filtration, includes shell 1, biological filter material layer 2, inlet channel 3, vortex delivery port 4 and mud discharge port 5; the biological filter material layers 2 are arranged in the shell 1 at intervals, the purifying structure main body is divided into two areas, the area between the biological filter material layers 2 and the shell 1 is a back flushing water inlet area, and a cyclone filtering area is arranged inside the biological filter material layers 2; the water inlet pipeline 3 is connected to the biological filter material layer 2 obliquely downwards and is communicated with the cyclone filtering area; the water inlet pipeline 3 is inserted into the inner wall of the biological filter material layer 2 in a tangential manner with the circumferential body of the biological filter material layer 2 and is fixed, so that water flows into a rotational flow filtering area in the biological filter material layer 2 to form a vortex state; the swirl filtering area is also provided with a guide cylinder 6, water flow forms vortex between the biological filter material layer 2 and the outer cylinder of the guide cylinder 6, sludge in the water body can be separated under the action of centrifugal force, and the water with pollutants removed by separation enters the guide cylinder 6 and is discharged through a vortex water outlet 4 arranged at the upper part of the guide cylinder 6; the separated and settled pollutants are discharged from a sludge discharge port 5 at the bottom of the purification structure.
Preferably, a backwash water inlet 9 is arranged at the top of the backwash water inlet region, and the backwash water inlet 9 and the water inlet pipeline 3 are positioned on the same side of the purification structure.
Preferably, the guide cylinder 6 further comprises an inner cylinder and an outer cylinder, the guide cylinder outer cylinder is in a shape of a truncated cone with a small upper part and a large lower part, an included angle between a truncated cone busbar formed by the guide cylinder outer cylinder and a high line of the truncated cone busbar is smaller than 10 degrees, and preferably, an included angle between the truncated cone busbar formed by the guide cylinder outer cylinder and the high line of the truncated cone busbar is 3 degrees or 5 degrees; the guide cylinder inner cylinder is cylindrical.
Preferably, a baffle 12 is further disposed inside the cyclone filtration zone, and the baffle 12 is located below the guide cylinder 6, so that a sediment collection zone 13 is formed inside the cyclone filtration zone below the baffle 12. Preferably, the purifying structure is a cylindrical barrel, the height of the cylindrical barrel is 1.5-3 times of the diameter of the bottom surface of the cylindrical barrel, and the height of the cylindrical barrel can be 2 times or 2.5 times of the diameter of the bottom surface of the cylindrical barrel.
Preferably, the bottom of the baffle 12 has a downward surface, and a sludge collecting port 14 is formed in the bottom of the baffle, and the contaminants deposited on the inner wall of the biological filter layer 2 are guided to the sludge collecting port 14 along the downward surface of the baffle 12, and enter the sediment collecting area 13 through the sludge collecting port 14.
Preferably, the biological filter material layer 2 is further provided with a filtering water outlet 10, the filtering water outlet 10 is positioned below the vortex water outlet 4, the inner wall of the biological filter material layer 2 at the opposite side of the backwash water inlet 9 extends out of the purification structure, and a filtering water outlet valve 15 is preferably further arranged at the filtering water outlet 10.
Preferably, the purifying structure further comprises a total water outlet pipeline 11, and the total water outlet pipeline 11 is respectively communicated with the vortex water outlet 4 and the filtering water outlet 10. Preferably the inlet conduit 3 is at an angle of less than 30 ° to the horizontal, more preferably the inlet conduit 3 is at an angle of 5 °,10 ° or 15 ° to the horizontal.
Preferably, the bottom of the purifying structure has a surface inclined downwards in the direction of the sludge discharge opening 5.
Preferably, the biological filter material layer 2 comprises an inner layer and an outer layer, wherein the inner layer is a small-particle biological filter material layer 7, and the outer layer is a large-particle biological filter material layer 8; the small-particle biological filter material layer 7 is formed by any one or two of quartz sand and microporous ceramic particles, and the large-particle biological filter material layer 8 is formed by mixing any one or more of zeolite, volcanic rock and macroporous ceramic particles.
In addition, the invention also provides a purification method of the cyclone reinforced filtration, which adopts the purification structure of the cyclone reinforced filtration to carry out purification and comprises a cyclone reinforced filtration step and a back flushing step; the cyclone reinforced filtering step comprises the following steps: the sewage enters a cyclone filtering area defined by the biological filter material layer 2 tangentially through a water inlet pipeline 3, and forms vortex in the cyclone filtering area; a guide cylinder 6 is also arranged in the cyclone filtering area to strengthen the vortex rotation; due to the centrifugal separation effect, pollutants carried in the water body are separated, gathered near the inner wall of the biological filter material layer 2 and deposited in a sediment collecting area 13 under the action of gravity, and discharged from the mud discharge port 5; the water body with the pollutants removed enters the guide cylinder 6 from the opening at the lower part of the guide cylinder 6 and is discharged through the vortex water outlet 4 of the guide cylinder 6; when the biological filler layer is blocked or runs for a certain time, a back flushing step is carried out to flush away dirt deposited in the biological filter material layer 2, so that the adsorption and degradation efficiency is improved; the back flushing step comprises the following steps: clean water is introduced into the back flush water inlet area from the back flush water inlet port 9, the water flows through the biological filter material layer 2, the dirt in the biological filter material layer 2 is washed away, the clean water enters the cyclone filter area, and the pollutants such as sludge are settled in the sediment collecting area and discharged through the sludge discharge port; the upper clean water is discharged from the filtering water outlet 10.
Compared with the prior art, the invention has the following beneficial effects:
(1) The rotational flow and filtering technology are organically combined, so that the water body can be better purified in a limited space;
(2) The cyclone filtering area comprises an upper cyclone separating area and a lower sediment collecting area, and the vortex and gravity sedimentation are arranged up and down, so that the overall height of the water purifying system is increased, the purifying treatment capacity of the water body is increased, and the occupied area of the purifying system is greatly reduced;
(3) The biological filler layer plays a role in diversion in the vortex process, and the biological filler layer is self-made of porous structural materials, so that the capture capacity of pollutants in water can be improved, and the separation and deposition efficiency of the water pollutants in the vortex process is effectively improved;
(4) The biological filler layer is not easy to be blocked due to the scouring effect of vortex flow, so that the backwashing process of the biological filler layer is greatly reduced; the oxygen content in the water body is increased, so that the degradation effect of the biological film on the biological filler layer is greatly enhanced, and the water body purifying effect is further improved;
(5) The backwashing system is arranged, the service life of the biological filler layer is greatly prolonged, and as the backwashing is a uniform scouring process, the biological film on the biological filler layer can be reserved maximally in the scouring filler process, meanwhile, the scoured sludge passes through the vortex system, so that the scoured sewage is further purified, and the final sludge is deposited at the bottom of the device and is discharged through cleaning or other modes.
Drawings
The present invention will be described in detail below with reference to the drawings and examples.
FIG. 1 is a schematic front view of a cyclone-enhanced filtering purification structure
FIG. 2 is a schematic cross-sectional view of a purge configuration for cyclone-enhanced filtration
In the figure: the filter comprises a shell 1, a biological filter layer 2, a water inlet pipeline 3, a vortex water outlet 4, a sludge discharge port 5, a guide cylinder 6, a small particle biological filter layer 7, a large particle biological filter layer 8, a back flushing water inlet 9, a filtering water outlet 10, a total water outlet 11, a guide plate 12, a sediment collecting area 13, a sludge collecting port 14, a filtering water outlet valve 15 and a structural cushion layer 16.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the purifying structure for cyclone reinforced filtration comprises a shell 1, a biological filter material layer 2, a water inlet pipeline 3, a vortex water outlet 4 and a mud discharge port 5. The biological filter material layers 2 are arranged in the shell 1 at intervals, the purifying structure main body is divided into two areas, the area between the biological filter material layers 2 and the shell 1 is a back flushing water inlet area, and the inside of the biological filter material layers 2 is a rotational flow filtering area. A backwash water inlet 9 is provided at the top of the backwash water inlet region. The water inlet pipeline 3 is connected to the biological filter material layer 2 obliquely downwards and is communicated with the cyclone filtering area. Preferably, the inlet conduit 3 is at an angle of less than 30 ° to the horizontal, more preferably the angle may be 5 °,10 °, or 15 °. The backwash water inlet port 9 and the water inlet conduit 3 are on the same side of the purification structure. The water inlet pipeline 3 is inserted into the inner wall of the biological filter material layer 2 in a tangential manner with the circumferential body of the biological filter material layer 2 and is fixed, so that water flows into a rotational flow filtering area in the biological filter material layer 2 to form a vortex state. A guide cylinder 6 is also arranged in the cyclone filtering area, the guide cylinder 6 is positioned at the upper part of the cyclone filtering area, and the corresponding position of the water inlet pipeline 3. The guide shell 6 is mounted to the cyclonic filtering region by support means (not shown). The guide cylinder 6 comprises an inner cylinder, an outer cylinder and a vortex water outlet 4. Annular spaces are respectively formed among the biological filter material layer 2, the guide cylinder outer cylinder and the inner cylinder, sewage enters the cyclone filtering area along the tangential direction of the biological filter material layer 2, a vortex state is formed between the biological filter material layer 2 and the guide cylinder 6 outer cylinder and between the guide cylinder outer cylinder and the inner cylinder, and the centrifugal effect of the sewage in the purification structure main body is further enlarged due to the arrangement of the guide cylinder 6. Under the action of centrifugal force, sludge in the water body is separated, firstly, the sludge is gathered near the inner wall of the biological filter material layer 2, and is deposited downwards along the inner wall of the biological filter material layer 2 under the action of gravity; the water body with the pollutants removed enters an annular space between the outer cylinder and the inner cylinder of the guide cylinder 6 from the opening at the lower part of the guide cylinder 6, and moves to the vortex water outlet 4 to be discharged after ascending spirally. The vortex water outlet 4 is positioned at one side of the upper part of the outer cylinder of the guide cylinder 6, which is far away from the water inlet pipeline 3. The guide cylinder outer cylinder is in a round table shape with a small upper part and a large lower part, so that water body can perform spiral descending movement in the cyclone filtering area, and separated sewage can enter the guide cylinder through the lower part of the guide cylinder 6. Preferably, the included angle between the truncated cone generatrix formed by the guide cylinder outer cylinder and the altitude line is smaller than 10 degrees, more preferably, the included angle can be 3 degrees or 5 degrees. The inner cylinder of the guide cylinder is cylindrical, so that water body spirally flows between the inner cylinder and the outer cylinder of the guide cylinder and is discharged from the vortex water outlet 4.
A deflector 12 is also arranged in the cyclone filtering area, and the deflector 12 is positioned at the lower part of the main body below the guide cylinder 6, so that a sediment collecting area 13 is further formed in the cyclone filtering area below the deflector 12. The bottom of the guide plate 12 is provided with a downward surface, and the bottom of the guide plate is provided with a sludge collecting opening 14, and the pollutants deposited on the inner wall of the biological filter material layer 2 are guided to the sludge collecting opening 14 along the downward surface of the guide plate 12, and enter the sediment collecting area 13 through the sludge collecting opening 14. A sludge discharge port 5 is also arranged on the side wall of the biological filter material layer 2 in the sediment collecting area 13, and the pollutants deposited in the sediment collecting area 13 are discharged from the sludge discharge port 5.
Under the centrifugal effect, the pollutant gathered near the inner wall of the biological filter material layer 2 is adsorbed in the porous structure of the biological filter material layer 2, and in addition, the microorganism in the biological filter material layer 2 has degradation effect, does not release toxic and harmful substances to the water body, and can greatly strengthen the purifying effect of the water body. The biological filter material layer 2 is also provided with a filtering water outlet 10, the filtering water outlet 10 is positioned below the vortex water outlet 4, and the inner wall of the biological filter material layer 2 at the opposite side of the backwash water inlet 9 extends out of the purification structure. A filter water outlet valve 15 is also arranged at the filter water outlet 10.
The purifying structure is a cylindrical cylinder with a height 1.5-3 times, preferably 2 times or 2.5 times, the diameter of the bottom surface. The long cylindrical structure enables the guide cylinder with cyclone separation to be arranged above the sediment collecting area, and the cyclone separation and gravity sedimentation areas are arranged up and down, so that the purifying treatment capacity of the water body is increased, and the occupied area of the purifying system is greatly reduced.
The purifying structure is a cylindrical cylinder with a height 1.5-3 times, preferably 2 times or 2.5 times, the diameter of the bottom surface. The long cylindrical structure enables the guide cylinder with cyclone separation to be arranged above the sediment collecting area, and the cyclone separation and gravity sedimentation areas are arranged up and down, so that the purifying treatment capacity of the water body is increased, and the occupied area of the purifying system is greatly reduced. The purifying structure also comprises a total water outlet pipeline 11, wherein the total water outlet pipeline 11 is respectively communicated with the vortex water outlet 4 and the filtering water outlet 10, so that the sewage for removing pollutants and the water after back flushing and filtering flow to the filter material layer 7 through the total water outlet pipeline 11 are formed by mixing any one or two of quartz sand and microporous ceramic particles, and the large-particle biological filter material layer 8 is formed by mixing any one or more of zeolite, volcanic rock and macroporous ceramic particles.
The bottom of the purifying structure is provided with a surface which is inclined downwards towards the sludge discharge opening 5, which is beneficial to the outflow of the sludge under the action of gravity. The bottom of the purification structure is provided with a structural backing layer 16, which may be of various material structures. The bottom structure body with a certain gradient is also arranged on the structural cushion layer, and the bottom structure body is provided with a surface which is inclined downwards towards the mud discharging port 5. Sludge may be disposed of by cleaning.
The invention also provides a purification method of the cyclone reinforced filtration, which comprises a cyclone reinforced filtration step and a back flushing step. The cyclone reinforced filtering step comprises the following steps: sewage enters a cyclone filtering area defined by the biological filter material layer 2 tangentially through a water inlet pipeline 3, and vortex is formed in the cyclone filtering area. A guide cylinder 6 is also arranged in the cyclone filtering area to strengthen the vortex rotation; due to the centrifugal separation effect, pollutants carried in the water body are separated, gathered near the inner wall of the biological filter material layer 2 and deposited in a sediment collecting area 13 under the action of gravity, and discharged from the mud discharge port 5; the water body with the pollutants removed enters the guide cylinder 6 from the opening at the lower part of the guide cylinder 6 and is discharged through the vortex water outlet 4 of the guide cylinder 6. When the biological filler layer is blocked or runs for a certain time, a back flushing step is carried out to flush away dirt deposited in the biological filter material layer 2, so that the adsorption and degradation efficiency is improved; the back flushing step comprises the following steps: clean water is introduced into the back flushing water inlet area from the back flushing water inlet port 9, flows through the biological filter material layer 2, washes away dirt in the biological filter material layer 2, enters the cyclone filtering area, and the water carrying the dirt is then subjected to cyclone separation by the guide cylinder 6, so that the pollutants such as sludge are settled in the sediment collecting area and discharged through the sludge discharge port. The clean water on the upper layer is discharged from the filtering water outlet 10 after back flushing.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a filtration's purification structure is reinforceed to whirl which characterized in that: comprises a shell (1), a biological filter material layer (2), a water inlet pipeline (3), a vortex water outlet (4) and a mud discharge port (5); the biological filter material layers (2) are arranged in the shell (1) at intervals, the purification structure main body is divided into two areas, the area between the biological filter material layers (2) and the shell (1) is a backwashing water inlet area, and the inside of the biological filter material layers (2) is a cyclone filtering area; the water inlet pipeline (3) is connected to the biological filter material layer (2) obliquely downwards and is communicated with the cyclone filtering area; the water inlet pipeline (3) is inserted into the inner wall of the biological filter material layer (2) in a tangential manner with the circumferential body of the biological filter material layer (2) and fixed, so that water flows into a cyclone filtering area in the biological filter material layer (2) to form a vortex state; the swirl filtering area is also internally provided with a guide cylinder (6), water flow forms vortex between the biological filter material layer (2) and the outer cylinder of the guide cylinder (6), sludge in the water body can be separated under the action of centrifugal force, and the water after separating and removing pollutants enters the guide cylinder (6) and is discharged through a vortex water outlet (4) arranged at the upper part of the guide cylinder (6); separating and settling pollutants are discharged from a mud discharge port (5) at the bottom of the purification structure, a backwash water inlet (9) is arranged at the top of a backwash water inlet area, the backwash water inlet (9) and a water inlet pipeline (3) are positioned at the same side of the purification structure, the guide cylinder (6) further comprises an inner cylinder and an outer cylinder, the guide cylinder outer cylinder is in a truncated cone shape with a small upper part and a large lower part, an included angle between a truncated cone busbar formed by the guide cylinder outer cylinder and a high line of the truncated cone busbar is smaller than 10 degrees, the guide cylinder inner cylinder is cylindrical, the biological filter material layer (2) comprises an inner layer and an outer layer, the inner layer is a small-particle biological filter material layer (7), and the outer layer is a large-particle biological filter material layer (8); the small-particle biological filter material layer (7) is formed by any one or two of quartz sand and microporous ceramic particles, and the large-particle biological filter material layer (8) is formed by mixing any one or more of zeolite, volcanic rock and macroporous ceramic particles.
2. A cyclone-enhanced filtering purification structure as claimed in claim 1, wherein: the included angle between the round table generatrix formed by the guide cylinder outer cylinder and the high line is 3 degrees or 5 degrees.
3. A cyclone-enhanced filtering purification structure as claimed in claim 1, wherein: the cyclone filtration area is internally provided with a guide plate (12), and the guide plate (12) is positioned below the guide cylinder (6), so that a sediment collection area (13) is formed inside the cyclone filtration area below the guide plate (12).
4. A cyclone-enhanced filtered purification structure as claimed in claim 3, wherein: the purifying structure is a cylindrical barrel, and the height of the cylindrical barrel is 1.5-3 times of the diameter of the bottom surface of the cylindrical barrel.
5. A cyclone-enhanced filtered purification structure as claimed in claim 4, wherein: the bottom of the guide plate (12) is provided with a downward surface, and the bottom of the guide plate is provided with a sludge collecting opening (14), and pollutants deposited on the inner wall of the biological filter layer (2) are guided to the sludge collecting opening (14) along the downward surface of the guide plate (12) and enter a sediment collecting area (13) through the sludge collecting opening (14).
6. A cyclone-enhanced filtered purification structure as claimed in claim 5, wherein: the biological filter material layer (2) is also provided with a filter water outlet (10), the filter water outlet (10) is positioned below the vortex water outlet (4), the inner wall of the biological filter material layer (2) at the opposite side of the backwash water inlet (9) extends out of the purification structure, and the filter water outlet (10) is also provided with a filter water outlet valve (15).
7. A cyclone-enhanced filtered purification structure as claimed in claim 6, wherein: the purifying structure also comprises a total water outlet pipeline (11), and the total water outlet pipeline (11) is respectively communicated with the vortex water outlet (4) and the filtering water outlet (10).
8. A cyclone-enhanced filtered purification structure as claimed in claim 7, wherein: the included angle between the water inlet pipeline (3) and the horizontal plane is smaller than 30 degrees.
9. A cyclone-enhanced filtered purification structure as claimed in any one of claims 1 to 8, wherein: the bottom of the purifying structure is provided with a surface which is inclined downwards towards the mud discharging opening (5).
10. A method for purifying cyclone reinforced filtration is characterized in that: purifying by a cyclone-enhanced filtering purification structure according to any one of claims 1 to 9, comprising a cyclone-enhanced filtering step and a back flushing step; the cyclone reinforced filtering step comprises the following steps: the sewage enters a cyclone filtering area defined by the biological filter material layer (2) tangentially through a water inlet pipeline (3), and forms vortex in the cyclone filtering area; a guide cylinder (6) is also arranged in the cyclone filtering area to strengthen the vortex rotation; due to the centrifugal separation effect, pollutants carried in the water body are separated, gathered near the inner wall of the biological filter material layer (2), deposited in a sediment collecting area (13) under the action of gravity and discharged from a mud discharge port (5); the water body with the pollutants removed enters the guide cylinder (6) from the opening at the lower part of the guide cylinder (6) and is discharged through the vortex water outlet (4) of the guide cylinder (6); when the biological filler layer is blocked or runs for a certain time, a back flushing step is carried out to flush away dirt deposited in the biological filter material layer (2), so that the adsorption and degradation efficiency is improved; the back flushing step comprises the following steps: introducing clean water into a back flush water inlet area from a back flush water inlet port (9), flushing away dirt in the biological filter material layer (2) by the water flowing through the biological filter material layer (2), allowing the water to enter a cyclone filter area, settling the dirt such as sludge into a sediment collecting area, and discharging the sediment through a sludge discharge port; the upper clean water is discharged from the filtering water outlet (10).
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| CN2017107331865 | 2017-08-24 | ||
| CN201710733186 | 2017-08-24 |
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| CN109052814A (en) * | 2018-08-06 | 2018-12-21 | 铜陵市天峰汽车维修服务有限责任公司 | A kind of biomembrane filter tank of classification processing |
| CN109731392B (en) * | 2019-03-18 | 2024-02-06 | 福州大学 | Ultrasonic filtering system and method |
| CN109772005A (en) * | 2019-03-28 | 2019-05-21 | 福州大学 | A kind of spiral-flow type automatic scraping mud filtration system and method |
| CN112645455B (en) * | 2020-12-21 | 2023-04-07 | 南京大学盐城环保技术与工程研究院 | Self-cleaning type nitrogen and phosphorus removal biological filter and domestic sewage treatment system |
| CN116986669B (en) * | 2023-08-08 | 2024-09-27 | 江苏金智圣环保科技有限公司 | Vertical double-stage cyclone dirt remover |
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| JPH02290290A (en) * | 1989-04-27 | 1990-11-30 | Tokyo Metropolis | Magnetic solid-liquid separation of waste water |
| CN106948453A (en) * | 2017-04-17 | 2017-07-14 | 天津市水利科学研究院 | Early-stage rainwater cuts dirty facility and cuts dirty operating method |
| CN207347357U (en) * | 2017-08-24 | 2018-05-11 | 天津市水利科学研究院 | A kind for the treatment of facilities of eddy flow intensive filtration |
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|---|---|---|---|---|
| JPH02290290A (en) * | 1989-04-27 | 1990-11-30 | Tokyo Metropolis | Magnetic solid-liquid separation of waste water |
| CN106948453A (en) * | 2017-04-17 | 2017-07-14 | 天津市水利科学研究院 | Early-stage rainwater cuts dirty facility and cuts dirty operating method |
| CN207347357U (en) * | 2017-08-24 | 2018-05-11 | 天津市水利科学研究院 | A kind for the treatment of facilities of eddy flow intensive filtration |
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