CN108744976A - The preparation method of micro-filtration food-grade filtering material - Google Patents
The preparation method of micro-filtration food-grade filtering material Download PDFInfo
- Publication number
- CN108744976A CN108744976A CN201810556105.3A CN201810556105A CN108744976A CN 108744976 A CN108744976 A CN 108744976A CN 201810556105 A CN201810556105 A CN 201810556105A CN 108744976 A CN108744976 A CN 108744976A
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- micro
- filtering material
- filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
- B01D67/0041—Inorganic membrane manufacture by agglomeration of particles in the dry state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/04—Tubular membranes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides the preparation methods of micro-filtration food-grade filtering material, its make the preparation of filtering material is simple, material without departing from, and can be backwashed in any case and meet requirement of the different enterprises to body form, simple to operation, reduce enterprise operation cost.High molecular weight HDPE pellets are refrigerated to subzero 20 ° or less, HDPE is crushed with high speed disintegrator later, obtain the powder that grain size is 20 μm~40 μm, the powder of acquisition is poured into the mold of corresponding form, it is cooled down by high temperature sintering, obtains the micro-filtration food-grade filtering material that filtering accuracy is 0.08 μm~0.12 μm correspondingly-shaped.
Description
Technical field
The present invention relates to the technical fields for crossing micro-filtration material, the specially preparation method of micro-filtration food-grade filtering material.
Background technology
Micro-filtration food-grade currently on the market, which crosses filtering material, hollow-fibre membrane and trepanning supra polymer section of jurisdiction plated film,
Have the shortcomings that there are corresponding, wherein：
1, for hollow-fibre membrane the disadvantage is that needing stringent pre-filtering, cleaning is difficult, and it is costly to change film, once damage, whole
It only scraps, and flow resistance is very big in fibre pipe, the pressure loss is larger, should not handle thick liquid, and production process is complicated, in
Empty fiber membrane has chemical composition residue organic molten, and structure is single, cannot backwash, and filtering accuracy is inadequate, short life；
2, trepanning supra polymer section of jurisdiction plated film, complex process film the inside are easy to fall off containing organic solvent.Our company invention
Micro-filtration food-grade screen pipe, filter, filtration core be sintered at high temperature into it is variously-shaped, it is simple for process, do not fall off, can in the case of arbitrary
Requirement of the different enterprises to body form is met to backwash, it is simple to operation, reduce enterprise operation cost.
Invention content
In view of the above-mentioned problems, the present invention provides the preparation method of micro-filtration food-grade filtering material, make filtering material
Preparation is simple, material without departing from and can backwashing and meet different enterprises and be wanted to body form in any case
It asks, is simple to operation, reducing enterprise operation cost.
The preparation method of micro-filtration food-grade filtering material, it is characterised in that：High molecular weight HDPE pellets are refrigerated to subzero
20 ° hereinafter, later crushed HDPE with high speed disintegrator, the powder that acquisition grain size is 20 μm~40 μm, by the powder filling of acquisition
It in the mold for entering corresponding form, is cooled down by high temperature sintering, it is the micro- of 0.08 μm~0.12 μm correspondingly-shaped to obtain filtering accuracy
Filter food-grade filtering material.
It is further characterized by：High speed disintegrator rotating speed in crushing process is not less than 10000 revs/min, really
It is fully reliable to protect crushing；
Preferably, the powder that grain size is 30 μm is obtained after high speed disintegrator crushes, later by pouring into mold high temperature sintering
After cooling, the micro-filtration food-grade filtering material that filtering accuracy is 0.1 μm of correspondingly-shaped is obtained；
It is cooled down by mold high temperature sintering and obtains the micro-filtrate membrane filtration pipe for corresponding to form, centered on the micro-filtrate membrane filtration pipe
Axis is the tubular structure of through hole；
The micro-filtrate membrane filtration piece for obtaining corresponding form is cooled down by mold high temperature sintering, the micro-filtrate membrane filtration piece is arbitrary
The plane arrangement structure of the shape of planar development state, preferably disc shape；
The micro-filtrate membrane filtration core of corresponding form is obtained by mold high temperature sintering, the micro-filtrate membrane filtration core carries for one end
End the tubular structure at end.
After applying the present invention, the powder for obtaining corresponding grain size is crushed after directly freezing high molecular weight HDPE pellets, then
Directly powder is filled in the mold of corresponding form, high temperature sintering cooling obtains the micro-filtration food-grade filter material of corresponding form
Material, sinterable at variously-shaped, simple for process, HDPE material sintering organic solvent-frees can be backwashed and not fallen off；Arbitrarily
In the case of can backwash, filtering accuracy is reliable and stable, and it is obtained by high temperature sintering, and chemical property is reliable and stable；It makes
Filtering material preparation is simple, material without departing from and can backwashing and meet different enterprises to object in any case
The requirement of shape, simple to operation, reduction enterprise operation cost.
Description of the drawings
Fig. 1 is the structure diagram of the micro-filtrate membrane filtration pipe prepared using the present invention；
Fig. 2 is using the half-sectional structure diagram of the micro-filtrate membrane filtration piece of the invention prepared；
Fig. 3 is using the half-sectional structure diagram of the micro-filtrate membrane filtration core of the invention prepared.
Specific implementation mode
The preparation method of micro-filtration food-grade filtering material, it is characterised in that：High molecular weight HDPE pellets are refrigerated to subzero
20 ° hereinafter, later crushed HDPE with high speed disintegrator, the powder that acquisition grain size is 20 μm~40 μm, by the powder filling of acquisition
It in the mold for entering corresponding form, is cooled down by high temperature sintering, it is the micro- of 0.08 μm~0.12 μm correspondingly-shaped to obtain filtering accuracy
Filter food-grade filtering material.
High speed disintegrator rotating speed in crushing process is not less than 10000 revs/min, it is ensured that crushes fully reliable；
In specific embodiment, high speed disintegrator obtains the powder that grain size is 30 μm after crushing, later by pouring into mold height
After temperature sintering is cooling, the micro-filtration food-grade filtering material that filtering accuracy is 0.1 μm of correspondingly-shaped is obtained.
It is cooled down by mold high temperature sintering and obtains the micro-filtrate membrane filtration pipe of corresponding form, sees Fig. 1, micro-filtrate membrane filtration Guan Weizhong
Mandrel is the tubular structure of through hole；
The micro-filtrate membrane filtration piece for obtaining corresponding form is cooled down by mold high temperature sintering, micro-filtrate membrane filtration piece is arbitrary plane
The plane arrangement structure of the shape of unfolded state, preferably disc shape (see Fig. 2)；
The micro-filtrate membrane filtration core of corresponding form is obtained by mold high temperature sintering, sees Fig. 3, and micro-filtrate membrane filtration core is one end band
There is the tubular structure at cut-off end.
It crushes the powder for obtaining corresponding grain size after directly freezing high molecular weight HDPE pellets, then directly fills powder
It is attached in the mold of corresponding form, high temperature sintering cooling obtains the micro-filtration that filtering accuracy is 0.08 μm~0.12 μm corresponding form
Food-grade filtering material；Its is sinterable at variously-shaped, simple for process, and HDPE material sintering organic solvent-frees can be backwashed
And it does not fall off；It can be backwashed in the case of arbitrary, filtering accuracy is reliable and stable, and it is obtained by high temperature sintering, chemical property
It is reliable and stable；It so that the preparation of filtering material is simple, material without departing from and can backwashing satisfactions in any case
It is requirement of the different enterprises to body form, simple to operation, reduce enterprise operation cost.
Specific embodiments of the present invention are described in detail above, but content is only the preferable implementation of the invention
Example, should not be construed as limiting the practical range of the invention.It is all to become according to impartial made by the invention application range
Change and improve etc., it should all still belong within this patent covering scope.
Claims (6)
1. the preparation method of micro-filtration food-grade filtering material, it is characterised in that：High molecular weight HDPE pellets are refrigerated to subzero 20 °
Hereinafter, later crushed HDPE with high speed disintegrator, the powder that grain size is 20 μm~40 μm is obtained, the powder of acquisition is poured into pair
It in the mold for answering form, is cooled down by high temperature sintering, obtains the micro-filtration food that filtering accuracy is 0.08 μm~0.12 μm correspondingly-shaped
Grade filtering material.
2. the preparation method of micro-filtration food-grade filtering material as described in claim 1, it is characterised in that：The high speed disintegrator
Rotating speed is not less than 10000 revs/min in crushing process.
3. the preparation method of micro-filtration food-grade filtering material as claimed in claim 1 or 2, it is characterised in that：High speed disintegrator
It is 30 μm of powder that grain size is obtained after crushing, later by pouring into the cooling of mold high temperature sintering after, it is 0.1 μm to obtain filtering accuracy
The micro-filtration food-grade filtering material of correspondingly-shaped.
4. the preparation method of micro-filtration food-grade filtering material as described in claim 1, it is characterised in that：It is burnt by mold high temperature
The cooling micro-filtrate membrane filtration pipe for obtaining corresponding form of knot, axis is the tubular structure of through hole centered on the micro-filtrate membrane filtration pipe.
5. the preparation method of micro-filtration food-grade filtering material as described in claim 1, it is characterised in that：It is burnt by mold high temperature
The cooling micro-filtrate membrane filtration piece for obtaining corresponding form of knot, the micro-filtrate membrane filtration piece is the shape of arbitrary plane unfolded state.
6. the preparation method of micro-filtration food-grade filtering material as described in claim 1, it is characterised in that：It is burnt by mold high temperature
Knot obtains the micro-filtrate membrane filtration core of corresponding form, and the micro-filtrate membrane filtration core is tubular structure of the one end with cut-off end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556105.3A CN108744976A (en) | 2018-06-01 | 2018-06-01 | The preparation method of micro-filtration food-grade filtering material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810556105.3A CN108744976A (en) | 2018-06-01 | 2018-06-01 | The preparation method of micro-filtration food-grade filtering material |
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| CN108744976A true CN108744976A (en) | 2018-11-06 |
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| CN201810556105.3A Pending CN108744976A (en) | 2018-06-01 | 2018-06-01 | The preparation method of micro-filtration food-grade filtering material |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040928A (en) * | 1989-02-22 | 1990-04-04 | 东辽县机内净化器厂 | HDPE super high molecular weight material diesel-oil filter element and production method |
| CN2249750Y (en) * | 1995-08-16 | 1997-03-19 | 马彰原 | Bactericidal filtering water-purifier |
| CN101063069A (en) * | 2007-05-30 | 2007-10-31 | 张明文 | Wine rod type filter element and method for making same |
| AU2007327802A1 (en) * | 2006-12-04 | 2008-06-12 | Pall Corporation | Filtering device, especially for use as a well screen filter |
| CN102869688A (en) * | 2010-05-03 | 2013-01-09 | 提克纳有限责任公司 | Polyethylene powders and porous articles produced therefrom |
| CN203060971U (en) * | 2013-01-31 | 2013-07-17 | 莫唐 | Novel microporous filter core |
| JP5352487B2 (en) * | 2010-01-25 | 2013-11-27 | 株式会社イノアック住環境 | Method for manufacturing sintered body |
| CN107415265A (en) * | 2017-05-23 | 2017-12-01 | 威孔过滤科技（苏州）有限公司 | The preparation method of sintering polytetrafluoroethylene filter core |
-
2018
- 2018-06-01 CN CN201810556105.3A patent/CN108744976A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040928A (en) * | 1989-02-22 | 1990-04-04 | 东辽县机内净化器厂 | HDPE super high molecular weight material diesel-oil filter element and production method |
| CN2249750Y (en) * | 1995-08-16 | 1997-03-19 | 马彰原 | Bactericidal filtering water-purifier |
| AU2007327802A1 (en) * | 2006-12-04 | 2008-06-12 | Pall Corporation | Filtering device, especially for use as a well screen filter |
| CN101063069A (en) * | 2007-05-30 | 2007-10-31 | 张明文 | Wine rod type filter element and method for making same |
| JP5352487B2 (en) * | 2010-01-25 | 2013-11-27 | 株式会社イノアック住環境 | Method for manufacturing sintered body |
| CN102869688A (en) * | 2010-05-03 | 2013-01-09 | 提克纳有限责任公司 | Polyethylene powders and porous articles produced therefrom |
| CN203060971U (en) * | 2013-01-31 | 2013-07-17 | 莫唐 | Novel microporous filter core |
| CN107415265A (en) * | 2017-05-23 | 2017-12-01 | 威孔过滤科技（苏州）有限公司 | The preparation method of sintering polytetrafluoroethylene filter core |
Non-Patent Citations (2)
| Title |
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| 李凤生: "《超细粉体技术》", 31 July 2000, 国防工业出版社 * |
| 潘卫三: "《工业药剂学（第三版）》", 31 August 2015, 中国医药科技出版社 * |
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Application publication date: 20181106 |