CN103463843A - Continuous filtering system - Google Patents
Continuous filtering system Download PDFInfo
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- CN103463843A CN103463843A CN2013104800143A CN201310480014A CN103463843A CN 103463843 A CN103463843 A CN 103463843A CN 2013104800143 A CN2013104800143 A CN 2013104800143A CN 201310480014 A CN201310480014 A CN 201310480014A CN 103463843 A CN103463843 A CN 103463843A
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- filter vat
- filtrate
- communicated
- bucket
- barrel
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- 238000001914 filtration Methods 0.000 title claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 239000010865 sewage Substances 0.000 claims abstract description 13
- 239000000706 filtrate Substances 0.000 claims description 73
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 238000010926 purge Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000011001 backwashing Methods 0.000 abstract 5
- 238000005406 washing Methods 0.000 abstract 1
- 101100372509 Mus musculus Vat1 gene Proteins 0.000 description 25
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- -1 mechanical admixture Substances 0.000 description 1
- 238000013327 media filtration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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- Filtration Of Liquid (AREA)
Abstract
The invention relates to the field of filtering devices, and in particular relates to a continuous filtering system, which can achieve the aim of simultaneously performing filtering and washing. The continuous filtering system comprises a filtering barrel, wherein a mixed lifting pump and a backwashing device are arranged in the filtering barrel; a raw liquid input opening, a filtration liquid output opening and a dirt output opening are formed in the side wall of the filtering barrel; an exhaust valve is arranged on the top of the filtering barrel; a filter material is contained in the filtering barrel and is positioned at the bottom of the filtering barrel; the backwashing device is arranged on the top of the filtering barrel and is close to the exhaust valve; the mixed lifting pump passes through the backwashing device, penetrates through the filtering barrel, extends to the bottom of the filtering barrel and penetrates into the filter material; the backwashing device comprises a separation barrel and a backwashing cavity, which are communicated vertically with each other; a sewage discharging opening is formed in the separation barrel and is communicated with the dirt output opening; the mixed lifting pump comprises a pump body, a compressed gas pipe and a lifting pipe; one end, at the bottom of the filtering barrel, of the compressed gas pipe is communicated with the side wall of one end, at the bottom of the filtering barrel, of the lifting pipe through the pump body; the top end of the compressed gas pipe extends out of the filtering barrel; the top end of the lifting pipe is positioned in the separation barrel and is communicated with the separation barrel.
Description
Technical field
The present invention relates to the filter field, in particular to the continuous filtration system.
Background technology
Conventional rapid filter refers to traditional rapid filter arrangement form, utilize in filtering layer the surface area that bulk material provides, hold back the suspended solid that has passed through coagulating treatment in stoste, filtrate is generally individual layer fine sand grating filtrate or coal, sand double-layer filter material, rinse unit and adopt water to rinse, comprise flush water pump, water tower and the auxiliary facility etc. that rinses.
Tradition pressure type filter vat, because of filter filled media difference, purposes is respectively had any different with effect.Quartz sand filtration bucket, active carbon filtration bucket, filtration with manganese sand bucket are generally arranged.Can be used alone and also can combine use according to actual conditions.The medium of multi-medium filtering bucket is quartz sand, anthracite etc.Function is filtering suspension, mechanical admixture, organic matter etc., reduces the turbidity of water.
The problem existed, common fast filter and traditional pressure type filter vat are discontinuous filtration, and filtrate is fixed, when cleaner liquid is not up to standard or during the value of reaching capacity, need the backwash filtrate.Usually when the backwash filtrate, clean flushing water from the bottom of filter vat by high-pressure delivery, from the top of filter vat, be discharged from afterwards, such back-flushing method not only energy consumption is large but also efficiency is low, filtrate easily hardens or produces mud ball, the filtrate that hardens or produce mud ball can not continue to use, and needs to change filtrate or has increased cost when filter vat is overhauled; And filter vat is because need interlude longer during backwash, and then need many filter vats to change to make for being filtered, cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of continuous filtration system, to address the above problem.
The continuous filtration system provided in an embodiment of the present invention, comprising: filter vat; Be provided with mixed lifting pump and back purge system in described filter vat; The sidewall of described filter vat is provided with stoste input port, cleaner liquid delivery outlet and dirt delivery outlet;
The top of described filter vat is provided with drain tap; Be loaded with filtrate in described filter vat, described filtrate is positioned at the bottom of described filter vat; Described back purge system is located at the top near the described filter vat of described drain tap; Described mixed lifting pump runs through described filter vat through described back purge system and extends to the bottom of described filter vat and go deep in described filtrate;
Described back purge system comprises: separating barrel and backwash chamber, and described separating barrel and described backwash chamber are communicated with setting up and down, and described separating barrel is positioned at the top in described backwash chamber; Described separating barrel is provided with sewage draining exit, and described sewage draining exit and described dirt delivery outlet are communicated with; The bottom in described backwash chamber is higher than the upper surface of filtrate heap;
Described mixed lifting pump comprises: control the pump housing, the compression gas pipe of inflating to the bottom of described filter vat of gas unidirectional circulation and the filtrate of the bottom of described filter vat is promoted to the riser in described separating barrel; The bearing of trend of described compression gas pipe and described riser is all consistent with the height place direction of described filter vat, and the end that described compression gas pipe is positioned at the bottom of described filter vat is positioned at the bottom of the described filter vat sidewall of an end by the described pump housing and described riser is communicated with; The top of described compression gas pipe extends to outside described filter vat, and the top of described riser is arranged in described separating barrel and is communicated with described separating barrel.
Continuous filtration system provided by the invention, change traditional back-flushing method, directly back purge system is located in filter vat, can realize the purpose that filtration limit, limit is rinsed, and provides cost savings, and improved efficiency.
Particularly, from the stoste input port, stoste is inputted in filter vat, directly risen to the top of filter vat by the liquid of media filtration, and discharge from the cleaner liquid delivery outlet; Filtered in filter material surface after stoste and filtrate heap the dirt in can residual stoste, now, by compressor, Compressed Gas is sent in the compression gas pipe of mixed lifting pump, compression gas pipe is inflated in filter vat, gas can not return from compression gas pipe, because riser is communicated with by the pump housing and compression gas pipe, gas can be gone out filter vat by drain tap from rising in riser, and filtrate, dirt and the part cleaner liquid of filter vat bottom also can rise in separating barrel from the bottom of riser with the gas risen simultaneously.In riser, cleaner liquid can carry out backwash momently to filtrate.But the cleaning of the filtrate in the mixed lifting pump is mainly collision and rubbing action, and strong backwash process has occurred in riser, but, because the time is shorter, backwash is not thorough, needs secondary cleaning.
The filtrate, dirt and the part cleaner liquid that enter in separating barrel can overflow from the top of riser, enter in separating barrel simultaneously, because separating barrel and backwash chamber are communicated with, filtrate is because Action of Gravity Field, enter separating barrel and directly fall into the backwash chamber after interior.
Because the bottom in backwash chamber is positioned at the top of the upper surface of filtrate, and separating barrel and backwash chamber are communicated with setting up and down, so, all be full of cleaner liquid in backwash chamber and separating barrel simultaneously, the liquid level of the cleaner liquid in filter vat now is set higher than the liquid level in separating barrel, the filtrate fallen in the cleaner liquid outside the backwash chamber and backwash chamber can form convection current, having cleaner liquid rises in the backwash chamber until separator rapidly from the bottom in backwash chamber constantly, from riser, dirt and cleaner liquid out can remain in along with the buoyancy of the liquid in separating barrel separating barrel, and dirt can overflow to from the opening part of middle level cylinder in outer cylinder, deposition is also discharged from sewage draining exit.
The process that the filtrate be raised descends in the backwash chamber, because cleaner liquid rises, utilize the principle of Fluidization Engineering, under the effect of the friction shearing between up and down, filtrate is again cleaned strongly, and the vibration produced due to the collision of the inwall in filtrate and backwash chamber and the frictional force effect between filtrate, make dirt separation, the dirt come off is rushed to discharging from outlet after precipitation in separating barrel, and the filtrate cleaned up drops down onto on the filtrate heap and again filters use.
The accompanying drawing explanation
The structural representation that Fig. 1 is continuous filtration system provided by the invention;
1. filter vat, 2. filtrate, 3. internal layer bucket, 4. middle level bucket, 5. outer bucket, 6. backwash chamber, 7. compression gas pipe, 8. riser, the 9. pump housing, 10. downflow weir, 11. cleaner liquid delivery outlets, 12. dirt delivery outlets, 13. the stoste input port, 14. communicating pipes, 15. eddy flow uniform devices, 16. drain tap, 17. cleaner liquid liquid levels, liquid level in 18. separating barrels.
The specific embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
Embodiment 1: as shown in Figure 1,
The continuous filtration system comprises: filter vat 1; Be provided with mixed lifting pump and back purge system in described filter vat 1; The sidewall of described filter vat 1 is provided with stoste input port 13, cleaner liquid delivery outlet 11 and dirt delivery outlet 12;
The top of described filter vat 1 is provided with drain tap 16; Be loaded with filtrate 2 in described filter vat 1, described filtrate 2 is positioned at the bottom of described filter vat 1; Described back purge system is located at the top near the described filter vat 1 of described drain tap 16; Described mixed lifting pump runs through described filter vat 1 through described back purge system and extends to the bottom of described filter vat 1 and go deep in described filtrate 2;
Described back purge system comprises: separating barrel and backwash chamber 6, and described separating barrel and described backwash chamber 6 are communicated with setting up and down, and described separating barrel is positioned at the top in described backwash chamber 6; Described separating barrel is provided with sewage draining exit, and described sewage draining exit and described dirt delivery outlet 12 are communicated with; The bottom in described backwash chamber 6 is higher than the upper surface of filtrate heap;
Described mixed lifting pump comprises: control the pump housing 9, the compression gas pipe 7 of inflating to the bottom of described filter vat 1 of gas unidirectional circulation and the filtrate of the bottom of described filter vat 12 is promoted to the riser 8 in described separating barrel; The bearing of trend of described compression gas pipe 7 and described riser 8 is all consistent with the height place direction of described filter vat 1, and the end that described compression gas pipe 7 is positioned at the bottom of described filter vat 1 is positioned at the bottom of described filter vat 1 sidewall of an end by the described pump housing 9 and described riser 8 is communicated with; The top of described compression gas pipe 7 extends to outside described filter vat 1, and the top of described riser 8 is arranged in described separating barrel and is communicated with described separating barrel.
Continuous filtration system provided by the invention, change traditional back-flushing method, directly back purge system is located in filter vat 1, can realize the purpose that filtration limit, limit is rinsed, and provides cost savings, and improved efficiency.
Particularly, from stoste input port 13 by stoste, input in filter vat 1, the liquid filtered by filtrate 2 directly rises to the top of filter vat 1, and discharges from cleaner liquid delivery outlet 11; Filtered in filtrate 2 surfaces after stoste and filtrate heap the dirt in can residual stoste, now, by compressor, Compressed Gas is sent in the compression gas pipe 7 of mixed lifting pump, compression gas pipe 7 is toward the interior inflation of filter vat 1, gas can not return from compression gas pipe 7, because riser 8 is communicated with by the pump housing 9 and compression gas pipe 7, gas can be gone out filter vat 1 by drain tap 16 from the interior rising of riser 8, and filtrate 2, dirt and the part cleaner liquid of filter vat 1 bottom also can rise in separating barrel from the bottom of riser 8 with the gas risen simultaneously.Can carry out backwash momently at the interior cleaner liquid of riser 8 to filtrate 2.But the cleaning of the filtrate 2 in the mixed lifting pump is mainly collision and rubbing action, strong backwash process occurred riser 8 is interior, but, because the time is shorter, backwash is not thorough, needs secondary cleaning.
The filtrate 2, dirt and the part cleaner liquid that enter in separating barrel can overflow from the top of riser 8, enter in separating barrel simultaneously, because separating barrel and backwash chamber 6 are communicated with, filtrate 2 is because Action of Gravity Field, enter separating barrel and directly fall into backwash chamber 6 after interior.
Because the bottom in backwash chamber 6 is positioned at the top of the upper surface of filtrate 2, and separating barrel and backwash chamber 6 are communicated with setting up and down, so, all be full of cleaner liquid in backwash chamber 6 and separating barrel simultaneously, the height of the height of the cleaner liquid liquid level 17 in filter vat 1 higher than liquid level in separating barrel 18 now is set, the filtrate of the cleaner liquid outside backwash chamber 6 and the whereabouts in backwash chamber 6 can form convection current, having cleaner liquid rises in backwash chamber 6 until separating barrel rapidly from the bottom in backwash chamber 6 constantly, from riser 8, dirt and cleaner liquid out can remain in along with the buoyancy of the liquid in separating barrel separating barrel, and dirt can overflow to from the opening part of middle level cylinder in outer cylinder, deposition is also discharged from sewage draining exit.
The filtrate 2 be raised is from the process of backwash chamber 6 interior declines, because cleaner liquid rises, utilize the principle of Fluidization Engineering, under the effect of the friction shearing between up and down, filtrate 2 is again cleaned strongly, and the frictional force effect that the vibration produced due to the collision of the inwall in filtrate 2 and backwash chamber 6 and filtrate are 2, make dirt separation, the dirt come off is discharged from outlet with rushing to precipitation in separating barrel, and the filtrate 2 cleaned up drops down onto on the filtrate heap and again filters use.
Embodiment 2:
Based on above-described embodiment, the present invention has done further improvement:
In order to improve the separating effect of dirt and filtrate 2, separating barrel is three coaxial drums, is respectively internal layer bucket 3, middle level bucket 4 and outer bucket 5;
Internal layer bucket 3 and middle level bucket 4 are the drum of up/down perforation, and riser 8 and internal layer bucket 3 are communicated with, and backwash chamber 6 and middle level bucket 4 are communicated with;
The bottom of outer bucket 5 is connected with the bottom lock of middle level bucket 4, and the sidewall of middle level bucket 4 is provided with opening, with outer bucket 5, is communicated with;
In order to regulate at any time the liquid level in middle level bucket 4, in order to make the liquid level of cleaner liquid and the difference in height between the liquid level in middle level bucket 4 that lasting circulating pressure upwards can be provided, the control valve of regulating described middle level bucket 4 height can be set on middle level bucket 4.Can regulate in time the height of middle level bucket 4 by this control valve, namely can regulate the liquid level in middle level bucket 4.
In order to improve the cleaning performance of filtrate 2 in the secondary backwash process, the sidewall that described backwash chamber 6 can be set is collapsible wallboard, and filtrate 2 is subject to stopping of collapsible wallboard in the decline process, has extended the time of backwash, has improved the effect of cleaning.
In order to make stoste can enter equably in the filtrate heap, improve the filter effect to stoste, can arrange and described stoste evenly can be inputted to the eddy flow uniform device 15 in described filtrate 2;
The mixed lifting pump is through eddy flow uniform device 15, and the upper end of eddy flow uniform device 15 is fixed on the outer wall of mixed lifting pump, and its lower end is positioned at the filtrate heap;
Eddy flow uniform device 15 can play the energy dissipating effect to stoste, and stoste is entered in filter vat 1 reposefully.The pollutants such as the suspension in stoste, are dammed to get off by filtrate 2 by 2 layers of process of filtrate from bottom to top, and cleaner liquid rises to 6 tops, backwash chamber through cleaner liquid efferent duct outflow filter bucket 1, are filtered into up flow type and filter, the steady safety of whole filter process.
In order to accelerate, to carrying the speed of stoste in filter vat 1, can be set horizontal by the angle setting communicating pipe 14.Preferably, the height place direction of the bearing of trend of the axis of communicating pipe 14 and filter vat 1 is 45 ° of angles.
In order to prevent that the clean cleaner liquid after filtration is passed filtrate 2 and the liquid contamination that riser 8 rises, cleaner liquid delivery outlet 11 can be located to the top of described dirt delivery outlet 12, be located on the liquid level in middle level bucket 4.
The inwall of filter vat is provided with downflow weir 10, and downflow weir 10 and cleaner liquid delivery outlet 11 are communicated with.
In order to make cleaner liquid gently to flow out, can on the inwall of filter vat, a downflow weir 10 be set cleaner liquid delivery outlet 11, this downflow weir 10 and cleaner liquid delivery outlet 11 are communicated with, now the cleaner liquid by downflow weir 10 can carry out final step ground precipitation before outflow, improves the filter quality of cleaner liquid.
For the dirt that makes deposition can be discharged filter vat 1 more, dirt delivery outlet 12 can be located between described stoste input port 13 and described cleaner liquid delivery outlet 11, namely dirt delivery outlet 12 is located at below the liquid level in middle level bucket 4, on the upper surface of filtrate heap.
In order to improve the filter effect of filtrate 2, the particle size that filtrate 2 particles can be set is identical.Simultaneously, the density that filtrate 2 can be set is greater than the density of stoste, so that the mixed lifting pump can promote filtrate 2 smoothly.
Continuous filtration system provided by the invention does not need additional pipeline, utilizes the principle of Fluidization Engineering simultaneously, and filtrate 2 is lifted to self-cleaning in equipment, and the counter-flushing liquid of use is cleaner liquid, does not need extra clean water source, has reduced cost.Simultaneously can limit filtration limit backwash filtrate 2, improved the speed of filtering.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. continuous filtration system, is characterized in that, comprising: filter vat; Be provided with mixed lifting pump and back purge system in described filter vat; The sidewall of described filter vat is provided with stoste input port, cleaner liquid delivery outlet and dirt delivery outlet;
The top of described filter vat is provided with drain tap; Be loaded with filtrate in described filter vat, described filtrate is positioned at the bottom of described filter vat; Described back purge system is located at the top near the described filter vat of described drain tap; Described mixed lifting pump runs through described filter vat through described back purge system and extends to the bottom of described filter vat and go deep in described filtrate;
Described back purge system comprises: separating barrel and backwash chamber, and described separating barrel and described backwash chamber are communicated with setting up and down, and described separating barrel is positioned at the top in described backwash chamber; Described separating barrel is provided with sewage draining exit, and described sewage draining exit and described dirt delivery outlet are communicated with; The bottom in described backwash chamber is higher than the upper surface of filtrate heap;
Described mixed lifting pump comprises: control the pump housing, the compression gas pipe of inflating to the bottom of described filter vat of gas unidirectional circulation and the filtrate of the bottom of described filter vat is promoted to the riser in described separating barrel; The bearing of trend of described compression gas pipe and described riser is all consistent with the height place direction of described filter vat, and the end that described compression gas pipe is positioned at the bottom of described filter vat is positioned at the bottom of the described filter vat sidewall of an end by the described pump housing and described riser is communicated with; The top of described compression gas pipe extends to outside described filter vat, and the top of described riser is arranged in described separating barrel and is communicated with described separating barrel.
2. continuous filtration system according to claim 1, is characterized in that,
Described separating barrel is three coaxial drums, is respectively internal layer bucket, middle level bucket and outer bucket;
Described internal layer bucket and described middle level bucket are the drum of up/down perforation, and described riser and described internal layer bucket are communicated with, and described backwash chamber and described middle level bucket are communicated with;
The bottom of described outer bucket is connected with the bottom lock of described middle level bucket, and the sidewall of described middle level bucket is provided with opening, with described outer bucket, is communicated with;
Described outer bucket is provided with sewage draining exit away from the sidewall of described middle level bucket, and described sewage draining exit and described dirt delivery outlet are communicated with by blow-off pipe.
3. continuous filtration system according to claim 2, is characterized in that,
Described middle level bucket is provided with the control valve of regulating described middle level bucket height.
4. continuous filtration system according to claim 2, is characterized in that,
The sidewall in described backwash chamber is collapsible wallboard.
5. continuous filtration system according to claim 1, is characterized in that,
Also comprise and stoste evenly can be inputted to the eddy flow uniform device in described filtrate;
Described mixed lifting pump is through described eddy flow uniform device, and the upper end of described eddy flow uniform device is fixed on the outer wall of described mixed lifting pump, and its lower end is positioned at described filtrate heap;
Described stoste input port is communicated with by communicating pipe and described eddy flow uniform device.
6. continuous filtration system according to claim 5, is characterized in that,
Described communicating pipe is horizontal by the angle setting.
7. continuous filtration system according to claim 2, is characterized in that,
Described cleaner liquid delivery outlet is located at the top of described dirt delivery outlet.
8. continuous filtration system according to claim 7, is characterized in that,
The inwall of described filter vat is provided with downflow weir, and described downflow weir and described cleaner liquid delivery outlet are communicated with.
9. continuous filtration system according to claim 1, is characterized in that,
The particle size of the particle of described filtrate is identical.
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Cited By (4)
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CN106718820A (en) * | 2016-12-12 | 2017-05-31 | 江苏省海洋水产研究所 | The miscellaneous algae filter of one main laver spore and miscellaneous algae minimizing technology |
CN108654155A (en) * | 2018-06-11 | 2018-10-16 | 中山市环保产业有限公司 | A kind of active sand filter |
CN109173363A (en) * | 2018-11-12 | 2019-01-11 | 新乡市绿丰环保工程有限公司 | Continuous activated carbon filter device and its operation method |
CN109621503A (en) * | 2019-01-25 | 2019-04-16 | 倍杰特集团股份有限公司 | A kind of diffuser |
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CN200966944Y (en) * | 2006-06-29 | 2007-10-31 | 长沙高新开发区美源环保科技有限公司 | Moving sand filter |
CN202766350U (en) * | 2012-08-31 | 2013-03-06 | 东北师范大学 | Continuous operating low-dissolved oxygen biological iron removal and manganese fixation device |
CN203483923U (en) * | 2013-10-14 | 2014-03-19 | 李岩 | Continuous filtration system |
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WO2001021274A1 (en) * | 1999-09-23 | 2001-03-29 | Degremont | Improvements to filters with granular material bed, in particular for water treatment |
CN2406715Y (en) * | 1999-12-08 | 2000-11-22 | 陈喆 | Filter for continuously recirculating sand-washing |
CN200966944Y (en) * | 2006-06-29 | 2007-10-31 | 长沙高新开发区美源环保科技有限公司 | Moving sand filter |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN106718820A (en) * | 2016-12-12 | 2017-05-31 | 江苏省海洋水产研究所 | The miscellaneous algae filter of one main laver spore and miscellaneous algae minimizing technology |
CN108654155A (en) * | 2018-06-11 | 2018-10-16 | 中山市环保产业有限公司 | A kind of active sand filter |
CN109173363A (en) * | 2018-11-12 | 2019-01-11 | 新乡市绿丰环保工程有限公司 | Continuous activated carbon filter device and its operation method |
CN109621503A (en) * | 2019-01-25 | 2019-04-16 | 倍杰特集团股份有限公司 | A kind of diffuser |
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