CN103463843B - Continuous filtration system - Google Patents
Continuous filtration system Download PDFInfo
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- CN103463843B CN103463843B CN201310480014.3A CN201310480014A CN103463843B CN 103463843 B CN103463843 B CN 103463843B CN 201310480014 A CN201310480014 A CN 201310480014A CN 103463843 B CN103463843 B CN 103463843B
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- filter vat
- filtrate
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- separating barrel
- bucket
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- 238000001914 filtration Methods 0.000 title claims abstract description 33
- 239000000706 filtrate Substances 0.000 claims abstract description 74
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 230000006835 compression Effects 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims abstract description 24
- 238000010926 purge Methods 0.000 claims abstract description 18
- 239000010865 sewage Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 101100372509 Mus musculus Vat1 gene Proteins 0.000 description 26
- 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
- 238000011010 flushing procedure Methods 0.000 description 6
- 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
- 230000009471 action Effects 0.000 description 4
- 238000005243 fluidization Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000926 separation method Methods 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
- 230000008859 change Effects 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
- 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to filter field, be specifically related to continuous filtration system, the object that filtration limit, limit is rinsed can be realized, comprise filter vat; Mixed lifting pump and back purge system is provided with in it; Sidewall is provided with stoste input port, cleaner liquid delivery outlet and dirt delivery outlet; Top is provided with drain tap; Be loaded with filtrate in filter vat, be positioned at bottom; Back purge system is located at the top of the filter vat near drain tap; Mixed lifting pump penetrates lauter tub through back purge system and extends to bottom and go deep in filtrate; Back purge system comprises the separating barrel and backwash chamber that are communicated with setting up and down; Separating barrel is provided with sewage draining exit and is communicated with dirt delivery outlet; Mixed lifting pump comprises the pump housing, compression gas pipe and riser; One end that compression gas pipe is positioned at the bottom of filter vat is positioned at one end of the bottom of filter vat sidewall by the pump housing and riser is communicated with; The top of compression gas pipe extends to outside filter vat, and the top of riser is arranged in separating barrel and is communicated with separating barrel.
Description
Technical field
The present invention relates to filter field, in particular to continuous filtration system.
Background technology
Conventional rapid filter refers to traditional rapid filter arrangement form, utilize the surface area that bulk material in filtering layer provides, retain the suspended solid through coagulating treatment in stoste, filtrate is generally individual layer fine sand graded filtering media or coal, sand double-layer filter material, rinsing unit adopts water to rinse, and comprises flush water pump, water tower and auxiliary flushing facility etc.
Conventional pressure formula filter vat, because filter filled media is different, purposes is respectively had any different with effect.Generally there are quartz sand filtration bucket, active carbon filtration bucket, filtration with manganese sand bucket.Can be used alone according to actual conditions also can conbined usage.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.
Problems existing, common fast filter and conventional pressure formula filter vat are discontinuous filtration, and filtrate is fixed, when cleaner liquid is not up to standard or when reaching the limit values, need backwash filtrate.Usually when backwash filtrate, clean flushing water from the bottom of filter vat by high-pressure delivery, be discharged from the top of filter vat 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 hardened or produce mud ball can not continue to use, and needs change filtrate or add cost while overhauling filter vat; And filter vat because backwash time need interlude longer, and then need multiple stage filter vat to carry out exchange to make for filtering, cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of continuous filtration system, to solve the problem.
The continuous filtration system provided in an embodiment of the present invention, comprising: filter vat; Mixed lifting pump and back purge system is provided with 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 of the described filter vat near 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 is communicated with setting up and down with described backwash chamber, 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 is communicated with described dirt delivery outlet; The upper surface that the bottom in described backwash chamber is piled higher than filtrate;
Described mixed lifting pump comprises: control the pump housing of gas unidirectional circulation, to the compression gas pipe of the bottom inflatable of described filter vat with the filtrate of the bottom of described filter vat is promoted to the riser in described separating barrel; Described compression gas pipe is all consistent with the direction, height place of described filter vat with the bearing of trend of described riser, and the sidewall that one end that described compression gas pipe is positioned at the bottom of described filter vat is positioned at one end of the bottom of described filter vat 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, changes traditional back-flushing method, is directly located in filter vat by back purge system, can realize the object that filtration limit, limit is rinsed, provide cost savings, improve efficiency.
Particularly, from 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 cleaner liquid delivery outlet; Filter in filter material surface after stoste and filtrate heap the dirt that can remain in 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 compression gas pipe by the pump housing, gas can rise through drain tap and go out filter vat in riser, and filtrate, dirt and part cleaner liquid simultaneously bottom filter vat also can rise in separating barrel from the bottom of riser with the gas risen.The backwash that cleaner liquid can carry out momently to filtrate in riser.But the cleaning of the filtrate in mixed lifting pump is mainly collided and rubbing action, in riser, there occurs strong backwash process, but due to the time shorter, backwash is thorough, needs secondary cleaning.
Enter the filtrate in separating barrel, dirt and part cleaner liquid to overflow from the top of riser, enter in separating barrel simultaneously, because separating barrel is communicated with backwash chamber, filtrate, because Action of Gravity Field, enters after in separating barrel and directly falls into backwash chamber.
Because the bottom in backwash chamber is positioned at the top of the upper surface of filtrate, and separating barrel is communicated with setting up and down with backwash chamber, so, be filled with cleaner liquid in backwash chamber and separating barrel all simultaneously, the liquid level of the cleaner liquid in filter vat is now set higher than the liquid level in separating barrel, the filtrate fallen in cleaner liquid then outside backwash chamber and backwash chamber can form convection current, have cleaner liquid to rise to rapidly in backwash chamber until separator from the bottom in backwash chamber constantly, can remain in separating barrel along with the buoyancy of the liquid in separating barrel from riser dirt out and cleaner liquid, and dirt can overflow in outer cylinder from the opening part of middle level cylinder, deposition is also discharged from sewage draining exit.
By the process that the filtrate promoted declines in 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 frictional force effect between the vibration produced due to the collision of the inwall in filtrate and backwash chamber and filtrate, makes dirt separation, the dirt come off is rushed discharges from outlet after precipitation to separating barrel, and the filtrate cleaned up drops down onto on filtrate heap and again filters use.
Accompanying drawing explanation
Fig. 1 is the structural representation of 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. stoste input ports, 14. communicating pipes, 15. eddy flow uniform devices, 16. drain taps, 17. cleaner liquid liquid levels, liquid level in 18. separating barrels.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment 1: as shown in Figure 1,
Continuous filtration system, comprising: filter vat 1; Mixed lifting pump and back purge system is provided with 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 of the described filter vat 1 near 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 is communicated with setting with described backwash chamber about 6, 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 is communicated with described dirt delivery outlet 12; The upper surface that the bottom in described backwash chamber 6 is piled higher than filtrate;
Described mixed lifting pump comprises: control the pump housing 9 of gas unidirectional circulation, to the compression gas pipe 7 of the bottom inflatable of described filter vat 1 and the riser 8 that is promoted to by the filtrate 2 of the bottom of described filter vat 1 in described separating barrel; Described compression gas pipe 7 is all consistent with the direction, height place of described filter vat 1 with the bearing of trend of described riser 8, and the sidewall that one end that described compression gas pipe 7 is positioned at the bottom of described filter vat 1 is positioned at one end of the bottom of described filter vat 1 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, changes traditional back-flushing method, is directly located at by back purge system in filter vat 1, can realize the object that filtration limit, limit is rinsed, provide cost savings, improve efficiency.
Particularly, stoste is inputted in filter vat 1 from stoste input port 13, directly risen to the top of filter vat 1 by the liquid that filtrate 2 filters, and discharge from cleaner liquid delivery outlet 11; Filter in filtrate 2 surface after stoste and filtrate heap and can remain dirt in stoste, now, by compressor, Compressed Gas is sent in the compression gas pipe 7 of mixed lifting pump, compression gas pipe 7 is toward inflation in filter vat 1, gas can not return from compression gas pipe 7, because riser 8 is communicated with compression gas pipe 7 by the pump housing 9, gas can rise through drain tap 16 and go out filter vat 1 in riser 8, and filtrate 2, dirt and part cleaner liquid simultaneously bottom filter vat 1 also can rise in separating barrel from the bottom of riser 8 with the gas risen.The backwash that cleaner liquid can carry out momently to filtrate 2 in riser 8.But the cleaning of the filtrate 2 in mixed lifting pump is mainly collided and rubbing action, there occurs strong backwash process in riser 8, but due to the time shorter, backwash is thorough, needs secondary cleaning.
Enter the filtrate 2 in separating barrel, dirt and part cleaner liquid to overflow from the top of riser 8, enter in separating barrel simultaneously, because separating barrel is communicated with backwash chamber 6, filtrate 2, because Action of Gravity Field, enters after in separating barrel and directly falls into backwash chamber 6.
Because the bottom in backwash chamber 6 is positioned at the top of the upper surface of filtrate 2, and separating barrel is communicated with setting with backwash chamber about 6, so, be filled with cleaner liquid in backwash chamber 6 and separating barrel all simultaneously, the height of height higher than liquid level in separating barrel 18 of the cleaner liquid liquid level 17 in filter vat 1 is now set, then the filtrate of the cleaner liquid outside backwash chamber 6 and the whereabouts in backwash chamber 6 can form convection current, have cleaner liquid to rise to rapidly from the bottom in backwash chamber 6 constantly in backwash chamber 6 until separating barrel, can remain in separating barrel along with the buoyancy of the liquid in separating barrel from riser 8 dirt out and cleaner liquid, and dirt can overflow in outer cylinder from the opening part of middle level cylinder, deposition is also discharged from sewage draining exit.
By the process that the filtrate 2 promoted declines in backwash chamber 6, 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 between the vibration produced due to the collision of the inwall in filtrate 2 and backwash chamber 6 and filtrate 2, makes dirt separation, the dirt come off is discharged from outlet after precipitation to separating barrel with punching, and the filtrate 2 cleaned up drops down onto on filtrate heap and again filters use.
Embodiment 2:
Based on above-described embodiment, invention has been 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 is communicated with internal layer bucket 3, and backwash chamber 6 is communicated with middle level bucket 4;
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, is communicated with outer bucket 5;
Outer bucket 5 is provided with sewage draining exit away from the sidewall of middle level bucket 4, and sewage draining exit is communicated with by blow-off pipe with dirt delivery outlet 12.
In order to regulate the liquid level in middle level bucket 4 at any time, to make the difference in height between the liquid level in the liquid level of cleaner liquid and middle level bucket 4 can provide the circulating pressure continued upwards, the control valve regulating described middle level bucket 4 height can be set on middle level bucket 4.The height of middle level bucket 4 can be regulated by this control valve in time, namely can regulate the liquid level in middle level bucket 4.
In order to improve the cleaning performance of filtrate 2 in secondary backwash process, the sidewall that can arrange described backwash chamber 6 is collapsible wallboard, and filtrate 2 is subject to the stop of collapsible wallboard in decline process, extends the time of backwash, improves the effect of cleaning.
In order to make stoste can enter equably in filtrate heap, improving the filter effect to stoste, the eddy flow uniform device 15 that described stoste evenly can be inputted in described filtrate 2 can be set;
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 filtrate heap;
Stoste input port 13 was communicated with eddy flow uniform device 15 by communicating pipe 14.
Eddy flow uniform device 15 can play energy dissipating effect to stoste, and stoste is entered in filter vat 1 reposefully.The pollutants such as the suspension in stoste are from bottom to top passing through in filtrate 2 layers of process, and dammed to get off by filtrate 2, cleaner liquid rises to top, backwash chamber 6 through cleaner liquid efferent duct outflow filter bucket 1, is filtered into filtration, the steady safety of whole filter process.
In order to accelerate, to the speed of carrying stoste in filter vat 1, can to arrange and arrange horizontal by angle communicating pipe 14.Preferably, the bearing of trend of the axis of communicating pipe 14 and the direction, height place of filter vat 1 are 45 ° of angles.
In order to prevent the clean cleaner liquid after filtering by the filtrate 2 that risen by riser 8 and liquid contamination, cleaner liquid delivery outlet 11 can be located at the top of described dirt delivery outlet 12, namely 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 is communicated with cleaner liquid delivery outlet 11.
Can gently flow out to make cleaner liquid, on the inwall of filter vat, a downflow weir 10 can be set cleaner liquid delivery outlet 11, this downflow weir 10 is communicated with cleaner liquid delivery outlet 11, now can carry out final step before outflow precipitated by the cleaner liquid of downflow weir 10, improve the filter quality of cleaner liquid.
Filter vat 1 can be discharged more to make the dirt deposited, 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 can arrange filtrate 2 particle is identical.Meanwhile, the density that can arrange filtrate 2 is greater than the density of stoste, so that filtrate 2 can promote by mixed lifting pump smoothly.
Continuous filtration system provided by the invention does not need additional pipeline, utilizes the principle of Fluidization Engineering simultaneously, and filtrate 2 is promoted self-cleaning in a device, and the counter-flushing liquid of use is cleaner liquid, does not need extra clean water source, reduces cost.Simultaneously can limit filtration limit backwash filtrate 2, improve the speed of filtration.
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 amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. continuous filtration system, is characterized in that, comprising: filter vat; Mixed lifting pump and back purge system is provided with 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 of the described filter vat near 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 is communicated with setting up and down with described backwash chamber, 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 is communicated with described dirt delivery outlet; The upper surface that the bottom in described backwash chamber is piled higher than filtrate;
Described mixed lifting pump comprises: control the pump housing of gas unidirectional circulation, to the compression gas pipe of the bottom inflatable of described filter vat with the filtrate of the bottom of described filter vat is promoted to the riser in described separating barrel; Described compression gas pipe is all consistent with the direction, height place of described filter vat with the bearing of trend of described riser, and the sidewall that one end that described compression gas pipe is positioned at the bottom of described filter vat is positioned at one end of the bottom of described filter vat 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;
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 is communicated with described internal layer bucket, and described backwash chamber is communicated with described middle level bucket;
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, is communicated with described outer bucket;
Described outer bucket is provided with sewage draining exit away from the sidewall of described middle level bucket, and described sewage draining exit is communicated with by blow-off pipe with described dirt delivery outlet;
Described middle level bucket is provided with the control valve regulating described middle level bucket height.
2. continuous filtration system according to claim 1, is characterized in that,
The sidewall in described backwash chamber is collapsible wallboard.
3. continuous filtration system according to claim 1, is characterized in that,
Also comprise the eddy flow uniform device that stoste evenly can be inputted 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 was communicated with described eddy flow uniform device by communicating pipe.
4. continuous filtration system according to claim 3, is characterized in that,
Described communicating pipe is arranged horizontal by angle.
5. continuous filtration system according to claim 1, is characterized in that,
Described cleaner liquid delivery outlet is located at the top of described dirt delivery outlet.
6. continuous filtration system according to claim 5, is characterized in that,
The inwall of described filter vat is provided with downflow weir, and described downflow weir is communicated with described cleaner liquid delivery outlet.
7. 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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| CN201310480014.3A CN103463843B (en) | 2013-10-14 | 2013-10-14 | Continuous filtration system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310480014.3A CN103463843B (en) | 2013-10-14 | 2013-10-14 | Continuous filtration system |
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| CN103463843A CN103463843A (en) | 2013-12-25 |
| CN103463843B true CN103463843B (en) | 2015-09-16 |
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| CN106718820B (en) * | 2016-12-12 | 2023-06-30 | 江苏省海洋水产研究所 | Porphyra spore and miscellaneous algae filtering device and miscellaneous algae removing method |
| 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 |
| CN112057915B (en) * | 2019-01-25 | 2022-03-15 | 倍杰特集团股份有限公司 | Label lifting and filtering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203483923U (en) * | 2013-10-14 | 2014-03-19 | 李岩 | Continuous filtration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2798865B1 (en) * | 1999-09-23 | 2001-11-16 | Degremont | IMPROVEMENTS ON GRANULAR MATERIAL BED FILTERS, ESPECIALLY FOR WATER TREATMENT |
| 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 |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203483923U (en) * | 2013-10-14 | 2014-03-19 | 李岩 | Continuous filtration system |
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Effective date of registration: 20200819 Address after: Fengrun Zhen Xiao Shang Guzhuang Cun, Fengrun District, Tangshan City, 064000 Hebei Province Patentee after: Tangshan Zhongtian Century Environmental Protection Technology Co.,Ltd. Address before: Room 12, door 1, 19 / F, Zhaozhuang building, Xueyuan Road, Lunan District, Tangshan City, Hebei Province Patentee before: Li Yan |
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