CN203620518U - Tubular membrane filtering component used in solid-liquid separation filter-press device - Google Patents
Tubular membrane filtering component used in solid-liquid separation filter-press device Download PDFInfo
- Publication number
- CN203620518U CN203620518U CN201320835180.6U CN201320835180U CN203620518U CN 203620518 U CN203620518 U CN 203620518U CN 201320835180 U CN201320835180 U CN 201320835180U CN 203620518 U CN203620518 U CN 203620518U
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- Prior art keywords
- filter
- tubular membrane
- filter core
- solid
- liquid separation
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- Expired - Lifetime
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- 239000012528 membrane Substances 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 title claims abstract description 37
- 238000000926 separation method Methods 0.000 title claims abstract description 26
- 238000001914 filtration Methods 0.000 title abstract description 27
- 239000007787 solid Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009295 crossflow filtration Methods 0.000 abstract description 2
- 239000000306 component Substances 0.000 abstract 2
- 239000008358 core component Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000007906 compression Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000002145 thermally induced phase separation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a tubular membrane filtering component used in a solid-liquid separation filter-press device. The filtering component consists of a filter core and a tubular membrane wrapping the outer surface of the filter core, wherein the filter core is a cylinder; grooves are uniformly formed in the outer surface along the circumference; the grooves extend along the axial direction to form a liquid guide channel of the filter core; the tubular membrane is of an external-pressure type internal-supported type structure and is formed by a support layer on the inner side and a membrane layer on the outer side, and the support layer is tightly adhered to the membrane layer. The utility model aims at solving the technical problems that a filtering net of a filter core component of a conventional solid-liquid separation filter-press device is poor in mechanical property, the aperture is large and is not uniformly distributed, the high-precision filtration cannot be achieved and moreover the solid-liquid separation efficiency is low and the separation effect is not thorough because of an ordinary cross flow filtration mode in the filter-press process.
Description
Technical field
The utility model belongs to solid-liquid separation technique field, is specifically related to a kind of tubular membrane filter element for Separation of Solid and Liquid filter-pressing device.
Background technology
Filter core and filter screen etc. that at present in solid-liquid separation technique, the press filtration part of filter-pressing device is generally communicated with respectively end cap and piston by the end cap of piston, sandwich and two ends form.The many filter elements that are wrapped in the filter core composition of filter screen are set in disengagement chamber, in pressure-filtering process, move with respect to end cap by piston and coaxial line rotation, material to be separated is carried out to Separation of Solid and Liquid, the filtered juice filtering out enters in filter core by filter screen, enter the liquid collecting cavity in end cap and the piston rod at these two ends with the drain passage of filter core after, discharge, remaining solid material is delivered to outside filter.
In prior art, the filter core of filter-pressing device is generally tubular structure, and adopt screen support at skin, and be fixed on the center of net-filter assembly, the functional characteristics effectively screen support being derived with filtrate and collect combines, the drain passage that the well-regulated groove of filter core excircle forms is communicated with two ends liquid collecting cavity, need not other drainage set, the juice that can realize separation is collected in the liquid collecting cavity of two ends through filter core passage.But in pressure-filtering process, this filter core can be because the squeezing action of material to be separated to filter screen causes the drain passage on filter net jam filter core, reduce drain area, cause drain not smooth, affect the filtration of filtrate and flow, and then affect the separative efficiency of filter-pressing device; And the aperture of this filter screen is often between 1 ~ 10mm, more greatly and easily distortion, in pressure-filtering process, material to be separated passes through in cross-flow mode, causes solid-liquid separation efficiency low in aperture, and separating effect is not thorough.
Utility model content
The purpose of this utility model is intended to solve the large and skewness of the filter screen bad mechanical property, aperture of filter element in existing filter-pressing device, cannot realizes high-precision filtration, and in pressure-filtering process, conventional cross-flow filtration mode causes that solid-liquid separation efficiency is low, the halfway technical problem of separating effect, and a kind of tubular membrane filter element for Separation of Solid and Liquid filter-pressing device is provided.
Concrete technical scheme of the present utility model is as follows:
for a tubular membrane filter element for Separation of Solid and Liquid filter-pressing device, formed by filter core and the tubular membrane that is coated on filter core outer surface; Described filter core is cylinder, and its outer surface is distributed with groove along even circumferential, and described groove extends the drain passage that forms filter core vertically; Described tubular membrane is fitted tightly and is formed by the supporting layer of inner side and the rete in outside.
Gap between described filter core outer surface and tubular membrane is 5 ~ 20mm; Between tubular membrane and filter core outer surface, there is certain gap, guarantee not affect in pressure-filtering process the flexural deformation of filter core.
Described tubular membrane is a kind of miillpore filter, and the aperture of its rete is 0.1 ~ 10 μ m, by a large amount of impurity and macromolecular substances in feed liquid to be separated effectively catching, improves the separative efficiency of filter element, makes Separation of Solid and Liquid more thorough.Described rete is that the one or more combination raw material in fine by Kynoar, polyether sulfone, polysulfones, polypropylene is prepared from, and in preparation process, both can adopt thermally induced phase separation film forming, also can pass through non-solvent phase conversion method film forming.
Described supporting layer is formed by nonwoven spiral winding, also can be wound fiber support skeleton by fibrage; It is positioned at inner side of tubular membrane, for the coating of outside rete provides support.
When use, the two ends of filter element are connected with press filtration piston rod and end cap respectively by connection fixture, and the drain passage that groove on filter core outer surface forms is connected with the liquid collecting cavity of press filtration piston rod inside and the liquid collecting cavity of end cap inside; In Separation of Solid and Liquid process, by spiral and the stretching motion of piston rod, drive spiral and the stretching motion of filter element, first solidliquid mixture to be separated passes through the filtration of tubular membrane, hold back a large amount of impurity and macromolecular particle material, see through the filtrate of tubular membrane through the filtration again of inner filter core, the drain passage being formed by the groove on gap and filter core outer surface between tubular membrane and the outer surface of filter core is discharged after entering the liquid collecting cavity of press filtration piston rod inside and the liquid collecting cavity of end cap inside.The obstruction of effectively avoiding impurity in solidliquid mixture to be separated and macromolecular particle material to cause drain passage, has strengthened the ability that sees through of filter core, and then realizes the completeness of Separation of Solid and Liquid.Adopt external-compression type inner support type tubular membrane, after can guaranteeing that Separation of Solid and Liquid finishes, filter cake moisture content drops to 15% ~ 35%.
The utility model has the advantage of:
(1) tubular membrane is a kind of external-compression type tube-type micropore filter membrane with high flux, even aperture distribution, by the filtration of holding back of tubular membrane, the obstruction of effectively avoiding impurity in solidliquid mixture to be separated and macromolecular particle material to cause drain passage, strengthen the ability that sees through of filter core, make Separation of Solid and Liquid more thorough, separation finishes rear filter cake moisture content and drops to 15% ~ 35%.
(2) tubular membrane is fitted tightly and is formed by the supporting layer of inner side and the rete in outside, the high-intensity supporting construction of medial support layer makes between the filter core of filter-pressing device and tubular membrane without the support component that increases other, can bear higher pressure, effectively avoid support component to stop up the drain passage on filter core excircle, and guarantee that tubular membrane does not affect the filter effect of inner filter core.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of the utility model filter element;
Fig. 2 is the A-A profile in Fig. 1;
Fig. 3 is tubular membrane sectional view.
Wherein: 1 is filter core, 2 is drain passage, and 3 is tubular membrane, and 4 is connection fixture, and 5 is press filtration piston rod, and 6 is end cap, 7 liquid collecting cavities for press filtration piston rod inside, and 8 is the liquid collecting cavity of end cap inside, and 31 is supporting layer, and 32 is rete.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.
Referring to Fig. 1, Fig. 2 and Fig. 3, tubular membrane filter element for Separation of Solid and Liquid filter-pressing device described in the utility model, adopt external-compression type to strengthen inner support type structure, tubular membrane 3 is coated on the outer surface of filter core 1, form the filter element of filter-pressing device with filter core 1, described filter core 1 is cylinder, and its outer surface is distributed with groove along even circumferential, and described groove extends to form the drain passage 2 of filter core vertically; Gap between filter core outer surface and tubular membrane 3 is 5 ~ 20mm.Described tubular membrane 3 comprises the supporting layer 31 of inner side and the rete 32 in outside, and supporting layer 31 fits tightly with rete 32.The high strength support structure of tubular membrane 3 medial support layers 31 makes between the filter core 1 of filter element and tubular membrane 3, without the support component that increases other, effectively to avoid support component to stop up drain passage, and to guarantee that tubular membrane does not affect the filter effect of inner filter core.
The two ends of the filter element being combined with filter core 1 by tubular membrane 3 are connected with press filtration piston rod 5 and end cap 6 by connection fixture 4 respectively, and the drain passage 2 that groove on filter core 1 outer surface forms is connected with the liquid collecting cavity 7 of press filtration piston rod inside and the liquid collecting cavity 8 of end cap inside.
As shown in Figure 3, described supporting layer 31 is formed by nonwoven belt spiral winding, or is wound fiber support skeleton by fibrage, is positioned at tubular membrane inner side, for the coating of outside rete provides support.Described rete 32 is that the one or more combination raw material in fine by Kynoar, polyether sulfone, polysulfones, polypropylene is prepared from, in preparation process, both can adopt thermally induced phase separation film forming, also can pass through non-solvent phase conversion method film forming, its aperture is 0.1 ~ 10 μ m, rete is coated in the outermost of tubular membrane, makes tubular membrane have the design feature of external-compression type film.
In separation process, by spiral and the stretching motion of piston rod, drive spiral and the stretching motion of filter element, first solidliquid mixture to be separated passes through the filtration of tubular membrane, hold back a large amount of impurity and macromolecular particle material, see through the filtrate of tubular membrane through the filtration again of inner filter core, the drain passage being formed by the groove on gap and filter core outer surface between tubular membrane and filter core outer surface is discharged after entering the liquid collecting cavity of press filtration piston rod inside and the liquid collecting cavity of end cap inside.The obstruction of effectively avoiding impurity in solidliquid mixture to be separated and macromolecular particle material to cause drain passage, has strengthened the ability that sees through of filter core, and then realizes the completeness of Separation of Solid and Liquid.Adopt external-compression type inner support type tubular membrane, after can guaranteeing that Separation of Solid and Liquid finishes, filter cake moisture content drops to 15% ~ 35%.
Claims (5)
1. for a tubular membrane filter element for Separation of Solid and Liquid filter-pressing device, formed by filter core and the tubular membrane that is coated on filter core outer surface; It is characterized in that described filter core is cylinder, its outer surface is distributed with groove along even circumferential, and described groove extends the drain passage that forms filter core vertically; Described tubular membrane is fitted tightly and is formed by the supporting layer of inner side and the rete in outside.
2. filter element according to claim 1, is characterized in that the gap between described filter core outer surface and tubular membrane is 5 ~ 20mm.
3. filter element according to claim 1 and 2, the aperture that it is characterized in that described tubular membrane rete is 0.1 ~ 10 μ m.
4. filter element according to claim 1, is characterized in that described supporting layer is formed by nonwoven spiral winding.
5. filter element according to claim 1, is characterized in that described supporting layer is wound fiber support skeleton by fibrage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320835180.6U CN203620518U (en) | 2013-12-17 | 2013-12-17 | Tubular membrane filtering component used in solid-liquid separation filter-press device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320835180.6U CN203620518U (en) | 2013-12-17 | 2013-12-17 | Tubular membrane filtering component used in solid-liquid separation filter-press device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203620518U true CN203620518U (en) | 2014-06-04 |
Family
ID=50807045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320835180.6U Expired - Lifetime CN203620518U (en) | 2013-12-17 | 2013-12-17 | Tubular membrane filtering component used in solid-liquid separation filter-press device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203620518U (en) |
-
2013
- 2013-12-17 CN CN201320835180.6U patent/CN203620518U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |