CN108654155B - Active sand filter - Google Patents
Active sand filter Download PDFInfo
- Publication number
- CN108654155B CN108654155B CN201810594213.XA CN201810594213A CN108654155B CN 108654155 B CN108654155 B CN 108654155B CN 201810594213 A CN201810594213 A CN 201810594213A CN 108654155 B CN108654155 B CN 108654155B
- Authority
- CN
- China
- Prior art keywords
- sand
- sand filtering
- filtering
- filter
- cleaning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000004576 sand Substances 0.000 title claims abstract description 151
- 238000001914 filtration Methods 0.000 claims abstract description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000004140 cleaning Methods 0.000 claims abstract description 35
- 239000010865 sewage Substances 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 9
- 238000011001 backwashing Methods 0.000 claims description 7
- 239000008213 purified water Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 117
- 239000000463 material Substances 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005352 clarification Methods 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to an active sand filter, which is characterized in that: including sand filtering belt cleaning device (1), inlayer sand filtering subassembly (2), outer sand filtering subassembly (3), outer case subassembly (4) that set gradually from inside to outside, be equipped with between inlayer sand filtering subassembly (2) and outer sand filtering subassembly (3) and be used for splendid attire filter sand chamber (5), be equipped with between outer sand filtering subassembly (3) and outer case subassembly (4) and be used for splendid attire water purification chamber (6) up to standard water, be connected with on sand filtering belt cleaning device (1) and be used for introducing sewage inlet tube (7), be equipped with on outer case subassembly (4) and be used for with water purification in water purification chamber (6) exhaust outlet pipe (8), outer sand filtering subassembly (3) are along the peripheral lateral wall setting in filter sand chamber (5), be equipped with a plurality of confession water purification outflow filtration holes (31) on outer sand filtering subassembly (3), this active sand filter area is little, with low costs, the resource obtains make full use of.
Description
[ Field of technology ]
The invention relates to an active sand filter.
[ Background Art ]
The active sand filtering is a continuous water treatment filtering technology, and belongs to fluidized bed filtering, and sand washing is performed while filtering. The active sand filtering technology has the advantages of low one-time investment cost, no need of a back flushing system, low operation and maintenance cost and the like, and plays an increasingly important role in municipal and industrial water and sewage advanced treatment processes.
The prior active sand filter has the advantages that filtered water reaching the standard flows out from the top end of the filter, the filtering efficiency is low, the occupied area is large, the cost is high, and the resources are not effectively utilized.
In view of the above, it is necessary to address the issues described above, and it is against this background that the present invention has been made.
[ Invention ]
The invention aims to solve the technical problems in the prior art, and provides the active sand filter which is provided with the unique outer sand filter component, and the treated purified water flows out from the periphery of the outer sand filter component, so that the efficiency of purifying sewage is greatly improved compared with the traditional technology, the occupied area is small, the cost is low, and the resources are fully utilized.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an active sand filter, includes by interior and outer filter sand belt cleaning device 1 that sets gradually, inlayer sand filter unit 2, outer sand filter unit 3, outer case subassembly 4 inlayer sand filter unit 2 with be equipped with between the outer sand filter unit 3 and be used for splendid attire filter sand chamber 5 be equipped with between outer sand filter unit 3 with be equipped with between the outer case subassembly 4 and be used for splendid attire water purification chamber 6 up to standard filter sand belt cleaning device 1 is last to be connected with be used for introducing sewage inlet tube 7 be equipped with on the outer case subassembly 4 be used for with clean water exhaust outlet pipe 8 in the water purification chamber 6, outer sand filter unit 3 is followed filter sand chamber 5's peripheral lateral wall sets up be equipped with a plurality of confession water purification outflow filtration pore 31 on the outer sand filter unit 3.
As described above, the inner sand filter assembly 2 includes a plurality of sand blocking plates 21 with inverted V-shaped cross sections, a plurality of sand blocking plates 21 are stacked up and down, and a water flow channel 22 for sewage to flow into the sand filter cavity 5 is provided between the upper and lower sand blocking plates 21.
The distance L between the upper and lower sand-blocking pieces 21 as described above ranges in size from: 40mm +.L +.60 mm.
The top end separating device 9 is provided at the upper part of the sand filter cleaning device 1, the active sand backwash assembly 10 communicated with the sand filter cleaning device 1 is provided in the top end separating device 9, and a backwash drain pipe 101 for discharging suspended matters and other impurities is provided on the active sand backwash assembly 10.
A lifting device 11 for lifting the sand-water mixture at the lower part of the sand filtering cavity 5 upwards and promoting the circulating flow is arranged below the sand filtering and cleaning device 1.
The stirring device 12 is arranged on the top end separating device 9, and the stirring device 12 comprises a driving motor 121 arranged at the top end of the top end separating device 9 and a stirring shaft 122 extending into the cavity of the activated sand backwashing assembly 10 and the sand filtering and cleaning device 1.
A spiral connector 13 is provided between the activated sand backwash assembly 10 and the sand filter cleaning device 1 as described above, and a spiral pipe 131 through which impurities such as suspended substances flow into the activated sand backwash assembly 10 is provided in the spiral connector 13.
The lower part of the sand filtering chamber 5 is in an inverted cone shape as described above.
The beneficial effects of the invention are as follows:
1. The invention provides the active sand filter which is provided with the unique outer sand filtering component, the treated purified water flows out from the periphery of the outer sand filtering component, compared with the traditional technology, the efficiency of purifying the sewage is greatly improved, the occupied area is small, the cost is low, and the resources are fully utilized.
2. The invention provides an active sand filter which is provided with a unique inner sand filtering component, wherein the inner sand filtering component comprises a plurality of sand blocking sheets with V-shaped cross sections, the sand blocking sheets can ensure that sewage smoothly enters a sand filtering cavity for cleaning, and can prevent filter sand in the sand filtering cavity from flowing back into a sand filtering cleaning device and prevent the filter sand from blocking the sand filtering cleaning device.
[ Description of the drawings ]
FIG. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view A-A in fig. 2.
Fig. 4 is an enlarged view of a portion B in fig. 3.
Fig. 5 is an enlarged view of a portion C in fig. 3.
[ Detailed description ] of the invention
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, an active sand filter comprises a sand filtering and cleaning device 1, an inner sand filtering component 2, an outer sand filtering component 3 and an outer box component 4 which are sequentially arranged from inside to outside, a sand filtering cavity 5 for containing filtered sand is arranged between the inner sand filtering component 2 and the outer sand filtering component 3, a water purifying cavity 6 for containing standard water is arranged between the outer sand filtering component 3 and the outer box component 4, a water inlet pipe 7 for introducing sewage is connected to the sand filtering and cleaning device 1, a water outlet pipe 8 for discharging the purified water in the water purifying cavity 6 is arranged on the outer box component 4, the outer sand filtering component 3 is arranged along the peripheral side wall of the sand filtering cavity 5, a plurality of filtering holes 31 for the purified water to flow out are formed in the outer sand filtering component 3, and the active sand filter is provided with a unique outer sand filtering component, the purified water after being treated flows out of the periphery of the outer sand filtering component, thus the efficiency of the sewage is greatly improved, the occupied area is small, and the cost is low, and the full utilization is achieved.
As shown in fig. 1, 3 and 4, in this embodiment, the inner sand filter assembly 2 includes a plurality of sand blocking plates 21 with inverted V-shaped cross sections, the sand blocking plates 21 are stacked up and down, and a water flow channel 22 for sewage to flow into the sand filtering cavity 5 is provided between the upper and lower sand blocking plates 21.
As shown in fig. 1, 3, and 4, in the present embodiment, the distance L between the upper and lower sand-blocking pieces 21 ranges from: the sand baffle can ensure that sewage smoothly enters the sand filtering cavity for cleaning, and can prevent the sand filtering in the sand filtering cavity from flowing back into the sand filtering cleaning device and the sand filtering from blocking the sand filtering cleaning device, on the one hand, the sand baffle is 40mm less than or equal to L less than or equal to 60mm, and is preferably 50 mm.
As shown in fig. 1 and 3, in the present embodiment, a top end separator 9 is provided at the upper part of the sand filter cleaning device 1, an activated sand backwash assembly 10 communicating with the sand filter cleaning device 1 is provided in the top end separator 9, and a backwash drain pipe 101 for discharging impurities such as suspended solids is provided in the activated sand backwash assembly 10.
As shown in fig. 1 and 3, in the present embodiment, a lifting device 11 for lifting up the sand-water mixture at the lower part of the sand filtering chamber 5 and promoting the circulation flow is provided below the sand filtering and cleaning device 1.
As shown in fig. 1 and 3, in the present embodiment, the stirring device 12 is provided on the top end separating device 9, the stirring device 12 includes a driving motor 121 provided on the top end of the top end separating device 9, and a stirring shaft 122 extending into the cavity of the activated sand backwash assembly 10 and the sand filter cleaning device 1, and the stirring device 12 can prevent the filter sand from blocking the sand filter cleaning device 1 and prevent impurities such as suspended matters from blocking the activated sand backwash assembly 10.
As shown in fig. 1,3 and 5, in the present embodiment, a spiral connector 13 is provided between the activated sand backwash assembly 10 and the sand filter cleaning device 1, a spiral pipe 131 for allowing impurities such as suspended matters to flow into the activated sand backwash assembly 10 is provided in the spiral connector 13, and the spiral pipe 131 facilitates the impurities such as suspended matters to flow into the activated sand backwash assembly 10, and prevents the filtered sand from entering the activated sand backwash assembly 10.
As shown in fig. 1 and 3, in this embodiment, the lower portion of the sand filtering chamber 5 is in an inverted cone shape, so that the filter sand is convenient to gather and circulate in the lower portion of the sand filtering chamber 5, and the purification efficiency is improved.
The active sand filter is based on the countercurrent principle, raw water to be treated enters the filter through a water inlet pipe and a water distributor positioned at the bottom of the filter, water flows countercurrent from bottom to top through a filter bed, filtered liquid after filtration is gathered at the top of the filter, and flows out through an overflow port. The active sand filtering system is one high efficiency filtering process integrating coagulation, clarification and filtering and consists of several active sand filter units. It does not need to stop the machine for back flushing; the single-stage filter material is adopted, no grading is needed, and the problems of uneven hydraulic distribution, primary filtrate and the like are avoided; the back flushing water pump and an electric and pneumatic valve for stopping and switching are not needed; no coagulation and clarification tank is needed, and no mechanical equipment for coagulation and clarification is needed. Thus, the active sand filtration system occupies a more compact area and is more economical to operate. Raw water enters the filter through the water inlet pipe, is uniformly distributed by the water distributor, and then flows upwards to the reverse flow filter material layer and is discharged. In the process, raw water is filtered, and the pollutant content in the water is reduced; meanwhile, the content of pollutants in the quartz sand filter material is increased, and the pollutant content of the lower filter material layer is higher than that of the upper filter material layer. And an air lift pump positioned in the center of the filter lifts quartz sand filter materials at the bottom layer to a sand washer at the top of the filter for cleaning under the action of an air compressor. The sand grains are cleaned and returned to the filter bed, and the pollutants generated by the cleaning are discharged. Because the quartz sand filter material is in a top-down motion state in the filter and plays a role in stirring raw water, stirring flocculation can be completed in the filter. The filter material in the filter is clean and timely, and can bear higher concentration of pollutants entering water. The special internal structure and the self characteristics of the active sand filter ensure that coagulation, clarification and filtration are all completed in the same tank body. The active sand filtering system consists of a concrete pool with a corresponding structure, a conical sand filtering guide device, an internal filtering unit, a water inlet pipeline, a filtrate water outlet pipeline, a flushing water outlet pipe, elastic connection between the internal filtering unit and the corresponding pipeline, an air compressor, a control system and the like. The internal filtering unit comprises a water inlet pipe, a water outlet pipe, a water flow distributor, a sand washing device, a flushing water outlet pipe, an air lift pump sleeve and the like. The water inlet and outlet pipe and the flushing water outlet pipe are positioned at the upper part of the filtering unit. The polluted filter material at the bottom of the filter is lifted to the sand washer at the top of the filter through the air lift pump, pollutants are separated from active sand through the turbulent flow effect, the impurities are discharged through the cleaning water outlet, and the clean sand returns to the sand bed by utilizing dead weight so as to realize continuous filtration.
Claims (5)
1. An activated sand filter, characterized by: the sand filtering and cleaning device comprises a sand filtering and cleaning device (1), an inner sand filtering component (2), an outer sand filtering component (3) and an outer box component (4) which are sequentially arranged from inside to outside, wherein a sand filtering cavity (5) for containing filtered sand is arranged between the inner sand filtering component (2) and the outer sand filtering component (3), a water purifying cavity (6) for containing standard water is arranged between the outer sand filtering component (3) and the outer box component (4), a water inlet pipe (7) for introducing sewage is connected to the sand filtering and cleaning device (1), a water outlet pipe (8) for discharging the purified water in the water purifying cavity (6) is arranged on the outer box component (4), the outer sand filtering component (3) is arranged along the peripheral side wall of the sand filtering cavity (5), and a plurality of filtering holes (31) for allowing the purified water to flow out are formed in the outer sand filtering component (3). The inner sand filter assembly (2) comprises a plurality of sand blocking sheets (21) with inverted V-shaped cross sections, the sand blocking sheets (21) are vertically stacked, a water flow channel (22) for sewage to flow into the sand filtering cavity (5) is arranged between the upper sand blocking sheet (21) and the lower sand blocking sheet (21), and the size range of the distance L between the upper sand blocking sheet (21) and the lower sand blocking sheet (21) is as follows: 40mm < L < 60mm; the lower part of the sand filtering cavity (5) is in an inverted cone shape.
2. The activated sand filter of claim 1, wherein: the sand filtering and cleaning device is characterized in that a top end separating device (9) is arranged on the upper portion of the sand filtering and cleaning device (1), an active sand backwashing assembly (10) communicated with the sand filtering and cleaning device (1) is arranged in the top end separating device (9), and a backwashing drainage pipeline (101) for discharging suspended matter impurities is arranged on the active sand backwashing assembly (10).
3. The activated sand filter of claim 2, wherein: and a lifting device (11) for lifting the sand-water mixture at the lower part of the sand filtering cavity (5) upwards and promoting the circulation flow is arranged below the sand filtering and cleaning device (1).
4. The activated sand filter of claim 2, wherein: the top end separating device (9) is provided with a stirring device (12), and the stirring device (12) comprises a driving motor (121) arranged at the top end of the top end separating device (9) and a stirring shaft (122) extending into the active sand backwashing assembly (10) and the cavity of the sand filtering and cleaning device (1).
5. The activated sand filter of claim 4, wherein: a spiral connector (13) is arranged between the active sand backwashing assembly (10) and the sand filtering and cleaning device (1), and a spiral pipeline (131) for enabling suspended matter impurities to flow into the active sand backwashing assembly (10) is arranged in the spiral connector (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594213.XA CN108654155B (en) | 2018-06-11 | 2018-06-11 | Active sand filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594213.XA CN108654155B (en) | 2018-06-11 | 2018-06-11 | Active sand filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108654155A CN108654155A (en) | 2018-10-16 |
| CN108654155B true CN108654155B (en) | 2024-07-26 |
Family
ID=63775549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810594213.XA Active CN108654155B (en) | 2018-06-11 | 2018-06-11 | Active sand filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108654155B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991857A (en) * | 2020-08-03 | 2020-11-27 | 优德太湖水务（苏州）有限公司 | Non-blocking sand filtering system |
| CN112696400B (en) * | 2021-02-07 | 2023-07-04 | 山东安瑞格精密机械有限公司 | Hydraulic workstation with air filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164433A (en) * | 1996-05-02 | 1997-11-12 | 张日养 | Closed horizontal-flow type filter capable of automatically cleaning filtering layer and its filtering method |
| CN202015528U (en) * | 2011-03-28 | 2011-10-26 | 广西博世科环保科技股份有限公司 | Reverse flow continuous sand filter |
| CN204815831U (en) * | 2015-07-08 | 2015-12-02 | 云南海诚环保科技有限公司 | Continuous sand filter with high -efficient cleaning function of filter sand |
| CN208541845U (en) * | 2018-06-11 | 2019-02-26 | 中山市环保产业有限公司 | It is a kind of for filtering the active sand filter of suspended matter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000218104A (en) * | 1999-02-01 | 2000-08-08 | Japan Organo Co Ltd | Continuous sand filter |
| CN103463843B (en) * | 2013-10-14 | 2015-09-16 | 李岩 | Continuous filtration system |
| CN204543680U (en) * | 2015-01-26 | 2015-08-12 | 上海奥德水处理科技有限公司 | A kind of have sand device and the continuous quicksand filter that sand grains is uniformly distributed function |
| CN104984572A (en) * | 2015-07-13 | 2015-10-21 | 江苏德立环保工程有限公司 | Efficient active flowing bed purifier |
| CN106621493A (en) * | 2016-12-06 | 2017-05-10 | 欧盛腾水处理技术（杭州）有限公司 | Horizontal flow continuous sand filtration equipment and water treatment process thereof |
| CN207253829U (en) * | 2017-09-30 | 2018-04-20 | 绿源(北京)环保设备股份有限公司 | Active sand filter plant and sewage filter system |
-
2018
- 2018-06-11 CN CN201810594213.XA patent/CN108654155B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164433A (en) * | 1996-05-02 | 1997-11-12 | 张日养 | Closed horizontal-flow type filter capable of automatically cleaning filtering layer and its filtering method |
| CN202015528U (en) * | 2011-03-28 | 2011-10-26 | 广西博世科环保科技股份有限公司 | Reverse flow continuous sand filter |
| CN204815831U (en) * | 2015-07-08 | 2015-12-02 | 云南海诚环保科技有限公司 | Continuous sand filter with high -efficient cleaning function of filter sand |
| CN208541845U (en) * | 2018-06-11 | 2019-02-26 | 中山市环保产业有限公司 | It is a kind of for filtering the active sand filter of suspended matter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108654155A (en) | 2018-10-16 |
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