CN105013221A - Multistage filter material filtering device - Google Patents
Multistage filter material filtering device Download PDFInfo
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- CN105013221A CN105013221A CN201410179499.7A CN201410179499A CN105013221A CN 105013221 A CN105013221 A CN 105013221A CN 201410179499 A CN201410179499 A CN 201410179499A CN 105013221 A CN105013221 A CN 105013221A
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- filter packing
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- filtration device
- filtering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Filtering Materials (AREA)
Abstract
A multistage filter material filtering device comprises a casing. The top end and the bottom end of the casing are provided with a water inlet and a water outlet respectively, the casing is provided with a filtering packing layer, the filtering packing layer is composed of at least three layers of hollow fine-fiber fluffy spherical packing with the diameter decreased gradually, the hollow fine-fiber fluffy spherical packing is composed of an inner plastic framework and fine fibers wound around the plastic framework, and the winding thickness of the fine fibers is 5-15 mm. Filtration gaps are changed in a forced mode on the basis of retaining the hydrodynamics sewage interception principle, stepless variable pores are formed in filtering layers, and the filtering sewage interception capability is greatly enhanced.
Description
Technical field
The present invention relates to Separation of Solid and Liquid field, particularly relate to the preprocessing technical field that leachate in uranium enrichment enters ion-exchange.
Background technology
Nuclear energy, as a kind of energy the most clean at present, is more and more subject to the favor of many countries.And the topmost fuel of nuclear reaction---uranium, it a kind ofly nuclear fission can occur and produce the metal of core cumulative, and the uranium in uranium ore average content of countries in the world is lower, and disperse very much, and dopant species is complicated, content is high.The method of usual employing is hydrometallurgy.Hydrometallurgy first step is exactly extract technology, by most of useless magazins' layout out.Extract technology be exactly with chemical reagent by with in the ore of numerous mineral association useful constituent---uranium is converted into soluble compound, and to be optionally dissolved out, to obtain the solution of containing metal uranium, realize the separation process of uranium component and impurity composition.Then purified by ion-exchange or solvent extraction, then uranium enrichment further, realize the utilization of core.
Leaching is exactly by the aqueous solution containing solvent, such as acid solution or aqueous slkali etc., directly carry out being uniformly mixed according to a certain percentage contacting with uranium ore, the uranium made it in ore is dissolved in the aqueous solution containing acid, alkali selectively, and be separated with other undissolved mineral, obtain the uranium containing the overwhelming majority and the aqueous solution only containing few other mineralogical composition partly soluble, thus realize being separated of uranium and other mineral.The leachate that the leaching method (as leaching, dump leaching etc.) of usual employing obtains comprises containing uranium solution, partial impurities and solid slag.If not by the Impurity removal in leachate, not only can cause subsequent technique intermediate ion switch bed local stoppages, and can resin wearing be caused, affect resin adsorption effect, cause the uranium in leachate to run off in a large number.
The multistage hydrocyclone of usually connecting before entering ion-exchange and spiral classifier, but because leachate is strong to the abrasion of equipment, poor fluidity, device separates weak effect, be easily worn, the shortcoming such as operating trouble is more.Developed into the thin mud separation of coarse sand and coarse sand washing that application fluidization technology carries out leachate afterwards.Although this method operates continuous, easy and stable, the impurity of relatively fine particle cannot be isolated.
Summary of the invention
The invention provides a kind of multistage media filtration device, cut forcibly changing on dirty basis at reservation hydrodynamics and filter space, filtering layer realizes stepless variable orifice gap, filters retaining power and greatly strengthens.
Key problem in technology of the present invention is filter packing fractional layer to lay, and from the bottom to top, every layer of diameter increases gradually, and density reduces gradually.Every layer of design thickness joins number of stages and the decision of water quality situation according to filtrate.Upper strata filtrate because of diameter comparatively large, thus porosity between filtrate is comparatively large, and can be used for retaining larger particles impurity, lower floor's filtrate voidage is less, for retaining comparatively granule impurity.Conventional same graded filtering media, impurity is mainly trapped within upper strata filter material surface, and easily cause and harden, retaining power is little, and the backwash cycle is short.Impurity screening reaches certain thickness by clear water backwash, can according to the density variation AUTOMATIC ZONING of filtrate after backwash, and the minor diameter filtrate preferential precipitation that density is large, the major diameter filtrate that density is little precipitates after a while, until return to initial laying state.Its concrete technical scheme is: a kind of multistage media filtration device, comprise housing, housing tip and bottom are respectively arranged with water inlet and delivery port, described housing is provided with filter packing layer, it is characterized in that the hollow thin fiber fluffy ball filler that described filter packing layer is diminished gradually by least three layers of diameter forms, described hollow thin fiber fluffy ball filler is made up of the plastic skeleton of inside and the fine fibre be wound on plastic skeleton, and described fine fibre is wound around thickness 5 ~ 15mm.
As preferably, described filter packing layer is divided into upper, middle and lower three layers successively, upper level filter filler diameter 40, thickness 400mm, middle level filter packing diameter 25, thickness 400mm, lower floor's filter packing diameter 15, thickness 400mm.
As preferably, described lower floor filter packing is layed on supporting network screen work, and described supporting network screen work is made up of uniformly at intervals multiple up big and down small cone.
As preferably, described plastics aggregate is hollow ball shape, and spherome surface is evenly equipped with permeable hole.
Beneficial effect of the present invention: hollow thin Filament-wound Machine frame design of the present invention, keep single filtrate respectively equal to voidage, reduce the loss of flood peak, and unit volume filter capacity is significantly improved, overcome traditional solid fiber-ball filter media inside closely knit, little, the easy contamination in space dirt, be difficult to the shortcoming that cleans up, filter efficiency is low.Filtrate density gradient designs: 1.2 ~ 1.8g/cm
3between, different according to diameter, density is difference slightly, and from big to small, density becomes large to diameter gradually, and density variation is realized by filtrate inner skeleton counterweight.Its filter packing main component is obtained by copolymer spinning, has good acid-proof alkaline.Also possess certain intensity simultaneously, inside have acid and alkali-resistance plastic skeleton to support, apply pressure and be unlikely to crimp, and affect its porosity.Due to its architectural characteristic, make it possess hydrophilicity: complete wetting in water, can not float because of bubbles attached during cleaning, and be easy to backwash; Carry charge: utilize identical charges exclusion principle, in leachate, granule foreign is often with negative electrical charge, and filter material surface carries negative electrical charge equally, and during backwash, impurity trapped particle is very easily rinsed removal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of filter packing.
Fig. 3 is the plastic skeleton structural representation of Fig. 2.
Detailed description of the invention
1. a multistage media filtration device, comprise housing 001, housing 001 top and bottom are respectively arranged with water inlet 011 and delivery port 012, described housing 001 is provided with filter packing layer 002, the hollow thin fiber fluffy ball filler 021 that described filter packing layer 002 is diminished gradually by three layers of diameter forms, described hollow thin fiber fluffy ball filler 021 is made up of the plastic skeleton 211 of inside and the fine fibre 212 be wound on plastic skeleton 211, and described fine fibre 212 is wound around thickness 5 ~ 15mm.Described plastics aggregate 211 is hollow ball shape, and spherome surface is evenly equipped with permeable hole 211a.Certain uranium ore leachate process, apparent muddiness, water yield 15m
3/ h, pH=1.5, SiO2=500mg/L, design filter 1000, the filtrate number of plies 3 layers, amount to height 1200mm, lower floor filter packing 021c diameter 15, thickness 400mm, middle level filter packing 021b diameter 25, thickness 400mm, upper level filter filler 021a diameter 40, thickness 400mm, SiO after filtering
2≤ 2mg/L, water quality is as clear as crystal.Described lower floor filter packing 021c is layed on supporting network screen work 003, and described supporting network screen work 003 is made up of uniformly at intervals multiple drain cap 031.
Claims (4)
1. a multistage media filtration device, comprise housing, housing tip and bottom are respectively arranged with water inlet and delivery port, described housing is provided with filter packing layer, it is characterized in that the hollow thin fiber fluffy ball filler that described filter packing layer is diminished gradually by least three layers of diameter forms, described hollow thin fiber fluffy ball filler is made up of the plastic skeleton of inside and the fine fibre be wound on plastic skeleton, and described fine fibre is wound around thickness 5 ~ 15mm.
2. the multistage media filtration device of one according to claim 1, is characterized in that described filter packing layer is divided into upper, middle and lower three layers successively, upper level filter filler diameter 40, thickness 400mm, middle level filter packing diameter 25, thickness 400mm, lower floor's filter packing diameter 15, thickness 400mm.
3. the described multistage media filtration device of one according to claim 2, it is characterized in that described lower floor filter packing is layed on supporting network screen work, described supporting network screen work is made up of uniformly at intervals multiple drain cap.
4. the multistage media filtration device of one according to claim 1, it is characterized in that described plastics aggregate is hollow ball shape, spherome surface is evenly equipped with permeable hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179499.7A CN105013221A (en) | 2014-04-30 | 2014-04-30 | Multistage filter material filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179499.7A CN105013221A (en) | 2014-04-30 | 2014-04-30 | Multistage filter material filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105013221A true CN105013221A (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410179499.7A Pending CN105013221A (en) | 2014-04-30 | 2014-04-30 | Multistage filter material filtering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105013221A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546685A (en) * | 2020-11-09 | 2021-03-26 | 黄河勘测规划设计研究院有限公司 | High-efficiency filter material and suspension filter system using same |
| CN113355937A (en) * | 2021-04-22 | 2021-09-07 | 凌黎明 | Processing device and processing method for separated and remixed paper pulp with retained fine fibers |
| CN113666538A (en) * | 2021-08-27 | 2021-11-19 | 哈尔滨工程大学 | A device for removing copper and nickel ions in electroplating wastewater by ion exchange method and its technological process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100467A (en) * | 1987-01-27 | 1988-08-10 | 东北电力学院 | Filtration method by mediums and equipment |
| JPH09234309A (en) * | 1996-03-01 | 1997-09-09 | Suido Kiko Kaisha Ltd | Filter layer compression method, filtration method and filtration device |
| CN201618449U (en) * | 2010-01-14 | 2010-11-03 | 新兴县六祖镇盈丰环保设备厂 | Double-layer high-efficient filter |
| CN202136838U (en) * | 2011-06-28 | 2012-02-08 | 广西地博矿业集团股份有限公司 | Activated carbon filtering device |
| CN102755771A (en) * | 2011-04-26 | 2012-10-31 | 吉林市天源环保工程有限公司 | Multi-stage variable-porosity fiber filter bed and filtering equipment |
| CN202620811U (en) * | 2012-04-12 | 2012-12-26 | 廊坊恒盛环保设备有限公司 | Multi-media mechanical filter with carbon fibers |
| CN203803172U (en) * | 2014-04-30 | 2014-09-03 | 江苏中超环保有限公司 | Multistage filter material filtering device |
-
2014
- 2014-04-30 CN CN201410179499.7A patent/CN105013221A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100467A (en) * | 1987-01-27 | 1988-08-10 | 东北电力学院 | Filtration method by mediums and equipment |
| JPH09234309A (en) * | 1996-03-01 | 1997-09-09 | Suido Kiko Kaisha Ltd | Filter layer compression method, filtration method and filtration device |
| CN201618449U (en) * | 2010-01-14 | 2010-11-03 | 新兴县六祖镇盈丰环保设备厂 | Double-layer high-efficient filter |
| CN102755771A (en) * | 2011-04-26 | 2012-10-31 | 吉林市天源环保工程有限公司 | Multi-stage variable-porosity fiber filter bed and filtering equipment |
| CN202136838U (en) * | 2011-06-28 | 2012-02-08 | 广西地博矿业集团股份有限公司 | Activated carbon filtering device |
| CN202620811U (en) * | 2012-04-12 | 2012-12-26 | 廊坊恒盛环保设备有限公司 | Multi-media mechanical filter with carbon fibers |
| CN203803172U (en) * | 2014-04-30 | 2014-09-03 | 江苏中超环保有限公司 | Multistage filter material filtering device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546685A (en) * | 2020-11-09 | 2021-03-26 | 黄河勘测规划设计研究院有限公司 | High-efficiency filter material and suspension filter system using same |
| CN113355937A (en) * | 2021-04-22 | 2021-09-07 | 凌黎明 | Processing device and processing method for separated and remixed paper pulp with retained fine fibers |
| CN113355937B (en) * | 2021-04-22 | 2023-09-08 | 保定市满城国利造纸有限公司 | Separation and remixing pulp treatment device for retaining fine fibers and treatment method thereof |
| CN113666538A (en) * | 2021-08-27 | 2021-11-19 | 哈尔滨工程大学 | A device for removing copper and nickel ions in electroplating wastewater by ion exchange method and its technological process |
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Application publication date: 20151104 |
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