CN2285154Y - Water supply filter - Google Patents
Water supply filter Download PDFInfo
- Publication number
- CN2285154Y CN2285154Y CN 97205726 CN97205726U CN2285154Y CN 2285154 Y CN2285154 Y CN 2285154Y CN 97205726 CN97205726 CN 97205726 CN 97205726 U CN97205726 U CN 97205726U CN 2285154 Y CN2285154 Y CN 2285154Y
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- filter
- layer
- particle diameter
- filtrate
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a water supply filter. Two and six layers of polyolefin particles which are filled with inorganic filler are arranged in the filter. The corresponding specific gravity of filtering material is increased from top to bottom layer by layer in a 0.3 to 1.8 range, the effective particle diameter is increased from top to bottom layer by layer in a 0.8 to 2.4 mm range, or the particle diameter of the first to the fourth layers is increased layer by layer. The particle diameter of the fourth to the sixth layers is reduced layer by layer, and the nonuniformity coefficient of each particle is less than or equal to 1.05. The filtering material has good chemical stability and small nonuniformity coefficient. The structure of the filter is reasonable, and the water making capacity of the utility model increases 2 to 4 times than that of a common filter, the backwashing water consumption falls to 40 to 60 %, and the water making cost can save 10 to 20 %. The utility model has the advantages of convenient operation and reasonable running.
Description
The utility model relates to the plastic filtering material filter in the feedwater filtration treatment.
Feed water filter is a kind of equipment that water supply purification is handled engineering, and the granular filter material of filter interior filling is called for short filtrate.Its course of work is the former water that has added coagulant in advance, during the filter material layer of the filter of flowing through, produces the contact cohesion on its surface, and the suspension in the former water is trapped in former water is purified.Along with the prolongation of filtration time, the suspension that filter material layer is held back increases gradually, and the resistance to water-flow of filter material layer increases gradually, arrives the filtration end point, carries out backwash, makes filtering layer recovery arrive the filtration original state.Filtrate the earliest is the quartz sand that is processed into certain specification, inorganic filtrates such as ANTHRACITE FILTER MEDIA and magnet ore particle had been developed afterwards again, above-mentioned filtrate proportion is greater than water, nonuniformity coefficient is big, the result of waterpower screening makes filtrate arrange from bottom to top by granular size, and the space between the filtering material particle is from the top down along the ascending arrangement of water (flow) direction.During filtration, the suspension major part is retained in the filtrate upper surface, makes the middle and lower part of filtrate can not give full play to filtration.Desirable filter should be the particle diameter of filtrate along the descending arrangement of water (flow) direction, the surface area of whole like this filter material layer just can obtain the utilization of maximum limit.Therefore, afterwards, having developed top again is that the bilayer filter and the top of quartz sand filter media is that the anthracite middle part is the three layer filtration device of magnet ore particle filtrate composition for the quartz sand bottom for the ANTHRACITE FILTER MEDIA bottom, successively reduce along the water (flow) direction particle diameter during this class filter system water, relatively approach desirable filter course, but still there is waterpower screening problem in every metafiltration material inside, and two interlayers mix easily, operation easier is big, thereby makes widely-used being affected.After this, developed spherical light filter material of polystyrene and the cylindric light filter material of polypropylene again,, only seen the report that reverse filtrate carries out single layer filter device application test, still do not reached the requirement of desirable filtering layer filter because its nonuniformity coefficient is big.
The purpose of this utility model provides a kind of improved plastic filtering material filter, and it makes the filtering layer of filter reach desirable state.
For achieving the above object, the utility model adopts following technical scheme: filter is container 1 and the container endoparticle filtrate 2 that has water inlet pipe and outlet pipe, two-layer comparing to six layers is set in the container focuses on increase successively from top to bottom in 0.3～1.8 scope, the polyolefin particles that contains 0.2～4.6% inorganic filler that effective grain size successively changes in 0.8～2.4mm scope, the nonuniformity coefficient of particle＜=1.05.
Described filtrate 2 can be set to from top to bottom that particle diameter successively increases, and perhaps the top particle diameter of filter medium of filtrate 2 successively increases from top to bottom, and the bottom particle diameter of filter medium successively reduces, and one to four layer of particle diameter successively increases, and four to six layers of scheme that particle diameter successively reduces are better.Being shaped as of filtrate is cylindrical, spherical, elliptical cylinder-shape and polyhedral a kind of, described inorganic filler is any two a mixture of a kind of of silica, barium sulfate, iron oxide, calcium carbonate or its, granularity is 320～500 orders, and described container 1 has 3,4,5 three intake-outlets.
Filtrate in the container 1 can according to different needs be set to respectively two-layer, three layers, four layers, five layers, six layers, every layer height is different and different with the number of plies and water quality, is generally 100～500mm.The utility model is described in further detail below in conjunction with example.
Fig. 1 is that schematic diagram Fig. 2 of the utility model filter is that unidirectional filter work schematic diagram Fig. 3 is a dual flow filter work schematic diagram
Fig. 2 and Fig. 3 also are embodiment of the present utility model.With reference to accompanying drawing 2 and accompanying drawing 3,1st, filter container, the 2nd, filter course, 3,4,5 is respectively top, the bottom of container 1, the short tube at middle part, a, b, c, d, e, f are respectively the particle diameter filtrates different with proportion, each metafiltration gauge lattice such as table 1: table 1
For accompanying drawing 2 and 3 liang of embodiment filters of accompanying drawing, used filtrate is cylindrical, concrete data such as table 2 are to unidirectional filter, with reference to accompanying drawing 2, during operation, former water is discharged by top short tube 3 from 4 water inlets of bottom short tube, and filtrate just in time is arranged in order from big to small along its particle diameter of water (flow) direction, form desirable filtering layer, made full use of the surface area of filter material layer to greatest extent.During backwash, water enters from top short tube 3 and bottom short tube 4, discharge by middle part short tube 5, the expansion of under middle part short tube 5, expanding of d metafiltration material, the expansion of on short tube 5, expanding of a, b, c three-layer filter, because a, b, c, d proportion increase successively, so after the backwash, the result of waterpower screening makes the still table 2 that puts in order of filter material layer
| Sequence number | Effective grain size (mm) | Proportion to water | Nonuniformity coefficient |
| a | 0.8～1.2 | 0.3～0.5 | ＜＝1.05 |
| b | 1.3～1.6 | 0.5～0.7 | |
| c | 1.6～2.0 | 0.7～0.9 | |
| d | 2.0～2.4 | 1.0～1.2 | |
| e | 1.3～1.6 | 1.2～1.4 | |
| f | 0.8～1.2 | 1.4～1.8 |
| Sequence number | Diameter (mm) | Cylinder height (mm) | Proportion to water | Nonuniformity coefficient |
| a | 0.8 | 1.2 | 0.5 | 1.05 |
| b | 1.2 | 1.6 | 0.7 | |
| c | 1.6 | 2.0 | 0.9 | |
| d | 2.0 | 2.4 | 1.1 | |
| e | 1.2 | 1.6 | 1.4 | |
| f | 0.8 | 1.2 | 1.8 |
Annotate: each filtering layer height is the perfect condition that 450mm is right as operation is initial, and filtering layer still can be played one's part to the full, and has thoroughly eliminated the defective of prior art.With reference to accompanying drawing 3, for dual flow filter, during operation, former water enters from middle part short tube 5, flows through the upper and lower filtrate simultaneously and is flowed out by short tube 3 and 4, and two parts all form desirable filtering layer up and down.During backwash, water enters from 3 and 4 liang of short tubes, is flowed out by short tube 5, the upper and lower filtering layer is with the expansion of equally expanding of unidirectional filter, and after the backwash, each layer arranged as before, do not mix layer between the filtering layer, still arrange, equally thoroughly eliminated the defective of prior art with desirable filtering layer.
The utility model compared with prior art has the following advantages:
1. the inorganic filtrate chemical stability of prior art is general, wears no resistance, and the particle nonuniformity coefficient is large, and filtrate chemical stability of the present utility model is good, and wearability is good, and the particle nonuniformity coefficient is little.
2. because the granular media performance of plastics is good, and filter structure is reasonable, the existing filter drainage capacity of this filter improves 2～4 times; Back washing strength and water consumption descend 40～60%, and the capital expenditure of filtered water per ton can save 10～30%, and water producing cost can save 10～20%, and is easy to operate reliable.
Claims (7)
1. feed water filter, comprise the container (1) and the container endoparticle filtrate (2) that have water inlet pipe and outlet pipe, it is characterized in that being provided with in the container (1) two-layer comparing and focus on increase successively from top to bottom in 0.3～1.8 scope to six layers, the polyolefin particles filtrate (2) that contains 0.2～4.6% inorganic filler that effective grain size successively changes in 0.8～2.4mm scope, the nonuniformity coefficient of particle is smaller or equal to 1.05.
2. filter as claimed in claim 1, it is characterized in that described filtrate (2) from top to bottom particle diameter successively increase.
3. filter as claimed in claim 1, it is characterized in that described filtrate (2) from top to bottom filtrate top particle diameter successively increase, the bottom particle diameter of filter medium successively reduces.
4. filter as claimed in claim 1, it is characterized in that described filtrate (2) from top to bottom one to four layer of particle diameter successively increase, four to six layers of particle diameter successively reduce.
5. filter as claimed in claim 1 is characterized in that described filtrate is cylindrical, spherical, elliptical cylinder-shape and polyhedral a kind of.
6. filter as claimed in claim 1 is characterized in that described inorganic filler is a kind of of silica, barium sulfate, iron oxide, calcium carbonate or any two mixture wherein, and granularity is 320～500 orders.
7. filter as claimed in claim 1 is characterized in that described container (1) has 3,4,5 three intake-outlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205726 CN2285154Y (en) | 1996-12-29 | 1996-12-29 | Water supply filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205726 CN2285154Y (en) | 1996-12-29 | 1996-12-29 | Water supply filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2285154Y true CN2285154Y (en) | 1998-07-01 |
Family
ID=33925891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205726 Expired - Fee Related CN2285154Y (en) | 1996-12-29 | 1996-12-29 | Water supply filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2285154Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114540078A (en) * | 2020-11-24 | 2022-05-27 | 何巨堂 | Simulated deposition filtration method for hydrocarbon raw material in fixed bed hydrogenation reaction process |
-
1996
- 1996-12-29 CN CN 97205726 patent/CN2285154Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114540078A (en) * | 2020-11-24 | 2022-05-27 | 何巨堂 | Simulated deposition filtration method for hydrocarbon raw material in fixed bed hydrogenation reaction process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |