CN205699632U - A kind of solvent recovery fine filtering device produced for carbon fiber - Google Patents
A kind of solvent recovery fine filtering device produced for carbon fiber Download PDFInfo
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- CN205699632U CN205699632U CN201620358865.XU CN201620358865U CN205699632U CN 205699632 U CN205699632 U CN 205699632U CN 201620358865 U CN201620358865 U CN 201620358865U CN 205699632 U CN205699632 U CN 205699632U
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- carbon fiber
- filter
- filtering device
- fine filtering
- solvent recovery
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Abstract
The utility model discloses a kind of solvent recovery fine filtering device produced for carbon fiber.Described fine filtering device is made up of the fine straining unit that two structures are identical, and described fine straining unit is composed in series by the filter that two structures are identical；Described filter is shell structure, and filter is provided with sieve plate, and sieve plate is divided into top layer, central filler district and bottom filter inner chamber；Top layer and bottom are carbon felt layer, and central filler district is active carbon fiber felt.This utility model can reduce in polyacrylonitrile fibril production process, such as the accumulation of the non-volatile impurities such as oils and fats in recycling design, promotes the steady quality of produced carbon fibre precursor.
Description
Technical field
This utility model relates to carbon fibre precursor production field, says further, relates to a kind of solvent recovery fine filtering device produced for carbon fiber.
Background technology
In polyacrylonitrile-based carbon fibre production process, the production of high-performance polyacrylonitrile precursor is most important.In general, acrylonitrile monemer, itaconic acid and other comonomer are under the initiation of azo dimethyl (AIBN), carrying out radical polymerization in sodium rhodanate (NaSCN) aqueous solution or dimethyl sulfoxide solvent, the solution of polymerization gained is spinning solution.But, general in macrocyclic production procedure, because the solvent used by Ju He needs to reclaim for a long time and recycle, often because of infiltration or the accumulation etc. of trace impurity of the lubricant greases such as equipment pipe fitting, cause polymer solvent recovery unit can bring some into and be difficult to the non-volatile impurities etc. that the purifier that the system that is recovered carries is removed, and then affect stablizing of polyreaction, cause the decline of solvent cycle efficieny efficiency, the decline of carbon fibre precursor quality stability, production cost to increase height.And for problems, conventional patent or document are difficult to find that the solution that may be used for industrialized unit.
Utility model content
For solving produced problem in prior art, this utility model provides a kind of solvent recovery fine filtering device produced for carbon fiber, can reduce in polyacrylonitrile fibril production process, such as the accumulation of the non-volatile impurities such as oils and fats in recycling design, promote the steady quality of produced carbon fibre precursor.
The purpose of this utility model is to provide a kind of solvent recovery fine filtering device produced for carbon fiber.
Described fine filtering device is composed in series by the fine straining unit that two structures are identical, and described fine straining unit is composed in series by the filter that two structures are identical；
Described filter is shell structure, and filter is provided with sieve plate, and sieve plate is divided into top layer, central filler district and bottom filter inner chamber；Top layer and bottom are carbon felt layer, and central filler district is active carbon fiber felt.
Wherein, preferably:
Described filter top is provided with apparatus closing end, is provided with diaphragm seal between apparatus closing end and filter housings, and apparatus closing end is fixedly connected with the casing；
Filter bottom arranges fixing leg.
Central filler district is divided into N shell active carbon fiber felt by sieve plate, and N is more than or equal to 2.
Described sieve plate is processed into by corrosion resistant plate perforate.
The carbon felt size of carbon felt floor and the active carbon fiber felt size in central filler district can be adjusted according to practical situation, in this utility model preferably:
The carbon felt of carbon felt layer a size of 500mm*500mm*220mm；
The active carbon fiber felt in central filler district a size of 500mm*500mm*220mm.
Said two filter is out one for being installed in series.
By controlling valve, two fine straining unit can individually use or be used in series.
This utility model specifically can be by the following technical solutions:
Described fine filtering device is composed in series by the fine straining unit that two structures are identical, and described fine straining unit is composed in series by the filter that two structures are identical.Described filter is cube structure, including apparatus closing end, gasket seal, sieve plate, carbon felt, active carbon fiber felt, fixing leg composition.Described apparatus closing end is fixed with movable bolt；Described sieve plate is processed into by corrosion resistant plate perforate.
Inner chamber is isolated into central filler district and bottom three part of top layer, multiple structure by described filter interior by sieve plate, and top layer and bottom fill after using carbon felt fixing, and central filler district uses the layering of active carbon fiber felt package to fill.Described filter can manually be vented aerofluxus.
The utility model has the advantage of:
After accessing fine filtering device described in the utility model in former solvent recovering system, can be under conditions of not changing former technique, it is effectively reduced in solvent recovery long period cyclic process such as the accumulation of the non-volatile impurities such as oils and fats, improve the homogeneity of recycling design further, and then promote the stable steady quality with produced carbon fibre precursor of spinning technique.Meanwhile, device described in the utility model has low cost, easy to operate and safeguard simple feature.
Accompanying drawing explanation
Fig. 1 fine filtering device of the present utility model workflow schematic diagram in solvent recovering system；
Fig. 2 filter structure schematic representation described in the utility model；
Fig. 3 this utility model sieve-plate structure schematic diagram.
Description of reference numerals:
1 solution reservoir；2 fine straining unit A；3 fine straining unit B；4 polymerization reaction systems；5 sieve plates；6 end sockets；7 fix leg；8 active carbon fiber felts；9 carbon felt layers；10 bottom discharge mouths；11 charging apertures.
Detailed description of the invention
Below in conjunction with embodiment, further illustrate this utility model.
Embodiment:
Such as Fig. 1, fine filtering device involved by this utility model includes 2 and 3 two fine straining unit, access former acrylonitrile polymerization solvent recovering system in pipeline mode, respectively include that two filters described in the utility model, two filters one open one for being installed in series at 2 and 3 two fine straining unit.The sodium thiocyanate solution reclaimed is processed by circularly purifying between 1 solution reservoir, 2 and 3 two fine straining unit, can enter 4 polymerization reaction systems after requisite quality.
Described fine filtering device is composed in series by the fine straining unit that two structures are identical, and described fine straining unit is composed in series by the filter that two structures are identical；Described filter is shell structure, and filter is provided with sieve plate 5, and sieve plate is divided into top layer, central filler district and bottom filter inner chamber；Top layer and bottom are carbon felt layer, and central filler district is active carbon fiber felt.
Such as Fig. 2, filter top end socket 6 is fixed by 12 movable bolts, and with ethylene-propylene-diene monomer glue gasket as sealing gasket, bottom is fixed leg 7 and supported fixing.Inner chamber is isolated into six filtrate fill areas by six layers of sieve plate 5 by filter interior, and sieve plate 5 plays fixing, compression and punishment in advance effect, is made up of 2mm thickness corrosion resistant plate, it has 407 material paths in 14mm aperture.Top layer and bottom 2 fill after using 52 layers of carbon felt fixing, (total carbon felt size: 500mm*500mm*220mm)；Middle four layer 3 uses activated carbon fiber fiber felt to fill (active carbon fiber felt bag size: 500mm*500mm*220mm) respectively.The sodium thiocyanate solution reclaimed is entered by charging aperture 11, bottom discharge mouth 10 go out.
When recycling design from 1 out after, sequentially enter fine straining unit A2 and fine straining unit B 3, two groups of fine straining unit series connection, reclaim solution and circulate in such as the blood circulation of Fig. 1, when in solvent oils and fats and other residues through filtration reach polymerization require time, just enter.Fine straining unit A2 or fine straining unit B 3 is can be used alone, it is possible to fine straining unit A2 and fine straining unit B 3 are used in series by regulating corresponding valve.
Although the foregoing describing detailed description of the invention of the present utility model; but those familiar with the art is to be understood that; we are merely exemplary described specific embodiment; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art, in the equivalent modification made according to spirit of the present utility model and change, should be contained in scope of the claimed protection of the present utility model.
Claims (7)
1. the solvent recovery fine filtering device produced for carbon fiber, it is characterised in that:
Described fine filtering device is composed in series by the fine straining unit that two structures are identical, and described fine straining unit is by two
The filter that structure is identical is composed in series；
Described filter is shell structure, and filter is provided with sieve plate, sieve plate filter inner chamber be divided into top layer,
Central filler district and bottom；Top layer and bottom are carbon felt layer, and central filler district is active carbon fiber felt.
2. the solvent recovery fine filtering device produced for carbon fiber as claimed in claim 1, it is characterised in that:
Described filter top is provided with apparatus closing end, is provided with sealing between apparatus closing end and filter housings
Sheet, apparatus closing end is fixedly connected with the casing；
Filter bottom arranges fixing leg.
3. the solvent recovery fine filtering device produced for carbon fiber as claimed in claim 2, it is characterised in that:
Central filler district is divided into N shell active carbon fiber felt by sieve plate, and N is more than or equal to 2.
4. the solvent recovery fine filtering device produced for carbon fiber as claimed in claim 3, it is characterised in that:
Described sieve plate is processed into by corrosion resistant plate perforate.
5. the solvent recovery fine filtering device produced for carbon fiber as claimed in claim 4, it is characterised in that:
The carbon felt of carbon felt layer a size of 500mm*500mm*220mm；
The active carbon fiber felt in central filler district a size of 500mm*500mm*220mm.
6. the solvent recovery fine filtering device produced for carbon fiber as claimed in claim 1, it is characterised in that:
Said two filter is out one for being installed in series.
7. the solvent recovery fine filtering device produced for carbon fiber as claimed in claim 1, it is characterised in that:
By controlling valve, two fine straining unit can individually use or be used in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358865.XU CN205699632U (en) | 2016-04-26 | 2016-04-26 | A kind of solvent recovery fine filtering device produced for carbon fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358865.XU CN205699632U (en) | 2016-04-26 | 2016-04-26 | A kind of solvent recovery fine filtering device produced for carbon fiber |
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| Publication Number | Publication Date |
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| CN205699632U true CN205699632U (en) | 2016-11-23 |
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| CN201620358865.XU Active CN205699632U (en) | 2016-04-26 | 2016-04-26 | A kind of solvent recovery fine filtering device produced for carbon fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308745A (en) * | 2016-04-26 | 2017-11-03 | 兰州蓝星纤维有限公司 | The device and application method of waste solids in a kind of continuous cleaning carbide furnace exhaust passage |
-
2016
- 2016-04-26 CN CN201620358865.XU patent/CN205699632U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308745A (en) * | 2016-04-26 | 2017-11-03 | 兰州蓝星纤维有限公司 | The device and application method of waste solids in a kind of continuous cleaning carbide furnace exhaust passage |
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