CN101844395A - Device for preparing regenerated cellulose tubular membrane - Google Patents
Device for preparing regenerated cellulose tubular membrane Download PDFInfo
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- CN101844395A CN101844395A CN 201010199333 CN201010199333A CN101844395A CN 101844395 A CN101844395 A CN 101844395A CN 201010199333 CN201010199333 CN 201010199333 CN 201010199333 A CN201010199333 A CN 201010199333A CN 101844395 A CN101844395 A CN 101844395A
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- China
- Prior art keywords
- coagulating agent
- tubular membrane
- recipient
- inner prop
- dilator
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Abstract
The invention relates to a device for preparing a regenerated cellulose tubular membrane, which comprises an extrusion cylinder, an inner column, a coagulant feeding tube, a coagulant discharge tube, a compressed air tube and a spreader. The side wall of the extrusion cylinder is provided with a cellulose solution feeding nozzle; the inner column and the extrusion cylinder are in coaxial clearance assembly; the inner column is provided with a central hole in which the coagulant feeding tube, the coagulant discharge tube and the compressed air tube are embedded; and a storage cavity is formed between the extrusion cylinder at the part of the feeding nozzle and the inner column, a core column is arranged between the lower part of the extrusion cylinder and the inner column in clearance, flow passages are transversely and uniformly distributed on the outer edge column surface of the core column, and the upper end of the spreader and the inner column are in coaxial threaded engaging assembly. The device is designed with the replaceable core column for controlling the thickness of the tubular membrane, bolts for adjusting the uniformity of extrusion gaps and coagulant double-row holes formed on the spreader for avoiding the cohesion effect of the membrane so as to play a role in pre-coagulating the inner wall of the cellulose tubular membrane.
Description
Technical field
The present invention relates to prepare the blow molding machine of cellulose membrane, especially a kind of device for preparing regenerated cellulose tubular membrane.
Background technology
Cellulose is the renewable resource that meets the sustainable development requirement, it is the main component of all higher plants such as trees, cotton, fiber crops, fiber and leaf, be one of natural polymer ancient and the abundantest on the earth, the Nature can be produced 1000～150,000,000,000 tons string by photosynthesis every year.The existing quite long history of the production of cellulose membrane material and use plays a part very important in film industry.Is that raw material is made film many-sided advantage is arranged with the cellulose: one, its raw material sources are abundant, the production of cellulose membrane and use and not only can already open up a new approach as materials processing, and can promote the economic benefit and the development of agriculture and forestry; Its two, many hydroxyls are arranged on the cellulose macromolecule chain, have stronger reactivity worth and interaction performance, so the processing technology of cellulose membrane material is fairly simple, cost is low; Its three, cellulose membrane has very high dimensional stability; Its four, cellulose membrane material itself is nontoxic, and can be degraded fully by microorganism, is beneficial to environmental protection; And the regenerated cellulose film of producing can be widely used in the packing of food, medicine, clothes aspect, agricultural mulching, and fields such as the electrode isolation film of reverse osmosis separating membrane and battery are a kind of very promising green macromolecular materials.Therefore, be that the potential scope of application of materials such as film of matrix is very extensive with the cellulose, social benefit is obvious.
By retrieval, find one piece of patent document, be to be expressed to the device (CN1219148) that the precipitating reagent that is arranged in the device below prepares cellulose tubular film by cellulose solution with tertiary amino oxides, this device comprises being furnished with ringwise basically top clearance, be provided with the input pipe of precipitating reagent and the efferent duct of described precipitating reagent in the inside of the ring that is formed by top clearance, the bottom that it is characterized in that being used for the input pipe (3) of precipitating reagent is positioned at the below of described precipitating reagent efferent duct (4).By reading its specification, learn its leakage employing tapered hole structure, dilator adopts a tablet.It is not very smooth that this structure makes leakage, and the stay tube effect is general.
Structure and the present invention of this patent are inequality.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of device for preparing regenerated cellulose tubular membrane is provided, this apparatus structure is simple, design science, film-formation result are good.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of device for preparing regenerated cellulose tubular membrane, comprise recipient, inner prop, coagulating agent input pipe, coagulating agent discharge pipe, compressed air hose and dilator, on the recipient sidewall, be shaped on a cellulose solution feed nozzle, inner prop and recipient concentric gap are installed, inner prop is shaped on centre bore, is embedded with coagulating agent input pipe, coagulating agent discharge pipe and compressed air hose in this centre bore; Be provided with storage cavity between the recipient at feed nozzle position and inner prop, the gap is equipped with a stem stem between recipient bottom and inner prop, the horizontal uniform runner that is shaped on the outer rim cylinder of this stem stem, and install with the engagement of inner prop coaxial threaded the dilator upper end.
And, the coarse adjustment screw and the fine tuning screw of inner prop are installed at recipient top radial equipartition.
And the taper outer edge surface is made in the bottom of dilator.
And described dilator is shaped on the coagulating agent chamber of a sealing, and the coagulating agent input pipe is communicated with this coagulating agent chamber, is shaped on the outer rim through hole on the dilator of this cavity.
Advantage of the present invention and good effect are:
The present invention is simple in structure, design science, film-formation result are good, design has the changed stem stem of control tubular film thickness, and regulate and extrude the inhomogeneity screw in slit, and the made double hole of coagulating agent of dilator of avoiding the film cohesive action, cellulose tubular membrane inwall is played pre-freezing action.
Description of drawings
Fig. 1 is that axis of no-feathering of the present invention cuts open schematic diagram:
Fig. 2 is Fig. 1 mandrel front view.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing, by specific embodiment, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of device for preparing regenerated cellulose tubular membrane comprises recipient 6, inner prop 4, coagulating agent input pipe 1, coagulating agent discharge pipe 3, compressed air hose 2 and dilator 12, is shaped on a feed nozzle 13 on the recipient sidewall, and this feed nozzle is communicated with cellulose solution; Inner prop and recipient concentric gap are installed, and inner prop is shaped on centre bore, is embedded with coagulating agent input pipe, coagulating agent discharge pipe and compressed air hose in this centre bore; Inner prop is shaped on upper and lower two pillow blocks at its underpart undergauge, wherein descend the top of the coaxial engagement installation in the bottom dilator of pillow block, the recipient internal clearance of the following pillow block between dilator upper end and last pillow block lower end is installed a stem stem 9, horizontal uniform many runners 14 that are shaped on the outer rim cylinder of this stem stem, this runner is used to store cellulose solution, and can make cellulose solution continuous-flow, the outer rim cylinder of stem stem and the inwall of recipient form air-gap.Form storage cavity 8 on above the stem stem between pillow block and the recipient, be used to be received from the cellulose solution that feed nozzle sends.
At recipient top radial equipartition coarse adjustment screw 5 and fine tuning screw 7 are installed, because inner prop is coaxial gap installation with recipient, therefore the radially jacking by coarse adjustment screw and fine tuning screw, can adjust the gap between inner prop and the recipient inwall, and then the air-gap between adjusting stem stem and recipient, adjust the flow of cellulose solution between spiral slide with control.
The taper outer edge surface is made in the bottom of dilator, be shaped on the coagulating agent chamber 10 of a sealing in it, the coagulating agent input pipe is communicated with this coagulating agent chamber, on the dilator of this cavity, be shaped on outer rim through hole 11, coagulating agent can flow on the outer edge surface of dilator by this outer rim through hole, and the inwall of cellulose tubular membrane is solidified in advance; The made outer rim through hole in coagulating agent chamber is two rows in the present embodiment, also can set as required.Coagulating agent discharge pipe and compressed air hose pass the coagulating agent chamber and the outlet of the two is positioned at the dilator below.
Operation principle of the present invention is:
Cellulose solution enters storage cavity by feed nozzle, stem stem through having transverse flow channels is squeezed into tubular membrane by the extruding slit, the uniformity in extruding slit is regulated by rotation coarse adjustment and micrometer adjusting screw, the cellulose tubular membrane drops down onto dilator through air-gap, the coagulating agent that the covering of dilator taper outer fringe surface is gone out through double orifice flow by the importing of coagulating agent input pipe, tubular membrane falls into coagulating bath along the dilator outer wall, compressed air is with tubular membrane inflation according to a certain percentage, make cellulose membrane that stretch orientation laterally arranged, can improve the mechanical performance of film.The inside and outside liquid level of film is kept balance, and the unnecessary coagulating agent of inwall is discharged through efferent duct.
This cellulose membrane records its hot strength σ b, elongation at break ε b via electronic tension tester and is respectively 16-30MPa, 50-80%.
Claims (4)
1. device for preparing regenerated cellulose tubular membrane, it is characterized in that: comprise recipient, inner prop, coagulating agent input pipe, coagulating agent discharge pipe, compressed air hose and dilator, on the recipient sidewall, be shaped on a cellulose solution feed nozzle, inner prop and recipient concentric gap are installed, inner prop is shaped on centre bore, is embedded with coagulating agent input pipe, coagulating agent discharge pipe and compressed air hose in this centre bore; Be provided with storage cavity between the recipient at feed nozzle position and inner prop, the gap is equipped with a stem stem between recipient bottom and inner prop, the horizontal uniform runner that is shaped on the outer rim cylinder of this stem stem, and install with the engagement of inner prop coaxial threaded the dilator upper end.
2. want the device of 1 described preparation regenerated cellulose tubular membrane according to right, it is characterized in that: coarse adjustment screw and fine tuning screw that inner prop is installed at recipient top radial equipartition.
3. want the device of 1 described preparation regenerated cellulose tubular membrane according to right, it is characterized in that: the taper outer edge surface is made in the bottom of dilator.
4. want the device of 1 described preparation regenerated cellulose tubular membrane according to right, it is characterized in that: described dilator is shaped on the coagulating agent chamber of a sealing, and the coagulating agent input pipe is communicated with this coagulating agent chamber, is shaped on the outer rim through hole on the dilator of this cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010199333 CN101844395A (en) | 2010-06-12 | 2010-06-12 | Device for preparing regenerated cellulose tubular membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010199333 CN101844395A (en) | 2010-06-12 | 2010-06-12 | Device for preparing regenerated cellulose tubular membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101844395A true CN101844395A (en) | 2010-09-29 |
Family
ID=42769293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010199333 Pending CN101844395A (en) | 2010-06-12 | 2010-06-12 | Device for preparing regenerated cellulose tubular membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101844395A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000023250A1 (en) * | 1998-10-21 | 2000-04-27 | Devro Plc | Film manufacturing method |
| US6444161B1 (en) * | 2000-05-19 | 2002-09-03 | Viskase Corporation | Mandrel structure for use in manufacture of cellulose food casing |
-
2010
- 2010-06-12 CN CN 201010199333 patent/CN101844395A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000023250A1 (en) * | 1998-10-21 | 2000-04-27 | Devro Plc | Film manufacturing method |
| US6444161B1 (en) * | 2000-05-19 | 2002-09-03 | Viskase Corporation | Mandrel structure for use in manufacture of cellulose food casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100929 |