CN1110623A - Short fibre sintered filter core and its preparation technology - Google Patents
Short fibre sintered filter core and its preparation technology Download PDFInfo
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- CN1110623A CN1110623A CN 94118841 CN94118841A CN1110623A CN 1110623 A CN1110623 A CN 1110623A CN 94118841 CN94118841 CN 94118841 CN 94118841 A CN94118841 A CN 94118841A CN 1110623 A CN1110623 A CN 1110623A
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- sintered filter
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Abstract
The short fibre sintered filter core contains mainly phenolic resin, urtropine and short fibre and its filtering precision is controlled by consumption of short fibre. Its making process includes such steps as thorough mixing, moulding, sintering, immersion, centrifugal drying and drying again. The filter core especially suitable for high-viscosity and high-polluted liquid features good self-supporting nature, high porosity up to 80%, good filtering performance, non-deforming after pressing, high filtering presion (5-100 micrometers), long service life and low cost.
Description
The present invention relates to a kind of filter core excessively that is used for Separation of Solid and Liquid, specifically a kind of short fibre sintered filter core and preparation technology thereof.
At present, the Separation of Solid and Liquid purified product is in constantly developing.Home products mostly belongs to tubular filter, adopting the flexible filter material, all must be that skeleton supports filtrate, all possesses specific skeleton as wire wound and polypropylene melt-blown etc., in order to avoid when work pressurized and being out of shape, effect is better in water treatment, but because the properties of materials of product own, it is not suitable for the liquid filtering of high viscosity, high turbidity, back pore size filter distortion is under pressure, increase obstruction thereby produce resistance, make to filter to be affected, can not reach the purpose of Separation of Solid and Liquid.
The object of the present invention is to provide that a kind of self-supporting is good, porosity is high, resistance is little, the power of holding back is strong and pressurized after the duct indeformable, and be adapted to the short fibre sintered filter core and the preparation technology thereof of high turbidity, high viscosity Separation of Solid and Liquid.
The objective of the invention is to realize by following scheme.
A kind of short fibre sintered filter core, the curing agent of employing phenolic resins and suitable phenolic resins is done the rigid support of filter core, mixes short fiber and does filtrate, and the filtering accuracy of its filter core is controlled by the incorporation of short fiber, the demoulding for convenience, and add an amount of releasing agent.It is characterized in that phenol-formaldehyde resin powder is 100 parts, methenamine is 10～30 parts, and short fiber is 60～120 parts, and zinc stearate (calcium) is 3～8 parts.Its preparation technology is: with phenolic resins, with addition of an amount of methenamine (curing agent), mix short fiber by this example then, stir, in the mould of packing into then, add an amount of zinc stearate (calcium) (agent of fat mould), put into the baking oven sinter molding, sintering temperature is 180～250C, and sintering time is 60～100 minutes, the demoulding then, after the sinter molding, also need to carry out impregnation process.This is that the product of sinter molding also has part fibre shedding phenomenon because phenolic resins belongs to rigid brittle, in order to solve the problem of coming off, carries out post processing with the method for dipping.Dip time 1～3 minute, and dry, redrying, temperature are controlled at 100～200C, till the oven dry, and packed products.It is 60～80 parts that maceration extract adopts 100 parts of polyurethane performed polymers, dimethyl sulfoxide (DMSO), and mole is 18～20 parts, and acetone is 80～100 parts.
Short fibre sintered filter core provided by the invention and preparation technology thereof owing to adopt the curing agent methenamine of phenolic resins and suitable phenolic resins to do the rigid support of filter core, make the product self-supporting good.Adopt short fiber to do filtrate, porosity is up to 80, and resistance is little, and it is strong to hold back power, and the duct is indeformable behind the pressurized, and filtering accuracy is 5～100mm, flow 0.5～6mh, resistance 0.006～0.014MPa, operating temperature 0～120C, pH value scope 1～8, long service life; As filtering accuracy is 10um, service life 200h, filtering accuracy be 25um, service life 350h, filtering accuracy is 75um, service life 450h.This product can be widely used in the liquid filtering that water treatment, paint resin, electrophoretic paint, lubricating oil, syrup, ethene, soap etc. are specially adapted to high viscosity, high pollution thing.
The present invention is described in more detail below in conjunction with embodiment.
Embodiment 1:
A kind of short fibre sintered filter core, making its filtering accuracy is 10um.Its batching is 196.7 grams for phenol-formaldehyde resin powder, and methenamine is that 39.4 grams, precision are that the synthetic fibers hair of 0.5～3mm is that 154.9 grams, zinc stearate (calcium) are 8 to restrain.Above various components are mixed by this example, stir, in the mould of then the pulvis batching being packed into, put into oven sintered, sintering temperature is 180～250C, 60～100 minutes time, and the demoulding then, and with in the immersion of the product after the sinter molding maceration extract.Contain 100 parts of polyurethane performed polymers in the maceration extract, dimethyl sulfoxide (DMSO) is 60～80 parts, 80～100 parts in acetone, 10～20 parts of mochas.Immersed 1～3 minute, and dried then, carry out redrying, temperature is 100～200C, till the oven dry.
Embodiment 2:
As different from Example 1, make the filtering accuracy of short fibre sintered filter core reach 20um.Its batching is 186.9 grams for phenol-formaldehyde resin powder, and methenamine is 37.4 grams, and string is that 147 grams, its precision are 0.5～3mm, and zinc stearate (calcium) is 8 grams.Its preparation technology and embodiment 1 are identical.
Embodiment 3:
As different from Example 1, the filtering accuracy of short fibre sintered filter core reaches 75um.Its batching is 149 grams for phenol-formaldehyde resin powder, and methenamine is 29 grams, and the animal origin hair is 124 grams.Its precision is 0.5～3mm, and zinc stearate (calcium) is 8 grams.Its preparation technology and embodiment 1 are identical.
Claims (4)
1, a kind of short fibre sintered filter core is characterized in that it contains phenol-formaldehyde resin powder for being 100 parts, and methenamine is 10～30 parts, and short fiber is 60～120 parts, and zinc stearate (calcium) is 3～8 parts.
2, a kind of preparation technology of short fibre sintered filter core, it is characterized in that with phenol-formaldehyde resin powder, with addition of an amount of methenamine, mix the short fiber hair by this example then, add an amount of zinc stearate (calcium), stir, pack into then in the mould, put into the baking oven sinter molding, sintering temperature is 180～250 ℃, and sintering time is 60～100 minutes, the demoulding then, and in the product immersion maceration extract with sinter molding, 1～3 minute time, and dry, redrying, temperature are controlled at 100～200 ℃, till the oven dry.
3, short fibre sintered filter core as claimed in claim 1 is characterized in that short fiber can adopt synthetic fibers, string and animal origin etc., and precision is 0.5～3mm.
4, the preparation technology of short fibre sintered filter core as claimed in claim 2 is characterized in that containing in the maceration extract 100 parts of polyurethane performed polymers, and dimethyl sulfoxide (DMSO) is 60～80 parts, 80～100 parts in acetone, 10～20 parts of mochas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118841A CN1034155C (en) | 1994-12-09 | 1994-12-09 | Short fibre sintered filter core and its preparation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118841A CN1034155C (en) | 1994-12-09 | 1994-12-09 | Short fibre sintered filter core and its preparation technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1110623A true CN1110623A (en) | 1995-10-25 |
| CN1034155C CN1034155C (en) | 1997-03-05 |
Family
ID=5039044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94118841A Expired - Fee Related CN1034155C (en) | 1994-12-09 | 1994-12-09 | Short fibre sintered filter core and its preparation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034155C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948159A (en) * | 2016-06-07 | 2016-09-21 | 中国科学院新疆理化技术研究所 | Manufacturing method for heavy metal adsorption filter element |
| CN112007428A (en) * | 2020-09-07 | 2020-12-01 | 洛阳理工学院 | Composite sintered plate, preparation method thereof and sintered plate type dust remover |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0172642B1 (en) * | 1984-07-09 | 1989-05-24 | Takeda Chemical Industries, Ltd. | Powder-air filter and separator for use in a powder filling apparatus |
| JPH02149307A (en) * | 1989-10-12 | 1990-06-07 | Kato Hatsujo Kaisha Ltd | Production of porous filter body made of sintered resin |
-
1994
- 1994-12-09 CN CN94118841A patent/CN1034155C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948159A (en) * | 2016-06-07 | 2016-09-21 | 中国科学院新疆理化技术研究所 | Manufacturing method for heavy metal adsorption filter element |
| CN105948159B (en) * | 2016-06-07 | 2018-10-26 | 中国科学院新疆理化技术研究所 | A kind of preparation method of heavy metal adsorption filter core |
| CN112007428A (en) * | 2020-09-07 | 2020-12-01 | 洛阳理工学院 | Composite sintered plate, preparation method thereof and sintered plate type dust remover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034155C (en) | 1997-03-05 |
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| CF01 | Termination of patent right due to non-payment of annual fee |