CN203389537U - Membrane modulus device applicable to recovering squeezing alkali liquor in viscose production by diffusion dialysis - Google Patents
Membrane modulus device applicable to recovering squeezing alkali liquor in viscose production by diffusion dialysis Download PDFInfo
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- CN203389537U CN203389537U CN201320441411.5U CN201320441411U CN203389537U CN 203389537 U CN203389537 U CN 203389537U CN 201320441411 U CN201320441411 U CN 201320441411U CN 203389537 U CN203389537 U CN 203389537U
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Abstract
The utility model relates to a membrane modulus device applicable to recovering squeezing alkali liquor in viscose production by diffusion dialysis, belonging to the technical field of membrane recovery of squeezing alkali liquor in viscose production. According to the membrane modulus device, a plurality of partitioning plates (10) and cation exchange membranes (9) are arranged and superposed alternately at intervals and press mutually; the partitioning plates (10) and the cation exchange membranes (9) are clamped by a squeezing alkali liquor runner interlayer (3) and an absorption liquid runner interlayer (4); the squeezing alkali liquor runner interlayer (3) and the absorption liquid runner interlayer (4) are further clamped by a first clamping plate (1) and a second clamping plate (2). The membrane modulus device provided by the utility model can efficiently recover the squeezing alkali liquor in viscose production with high quality, and the membrane pitch is small. The membrane modulus device is small in size and small in occupied area, and the production cost is lowered.
Description
Technical field
The utility model relates to the film group device in a kind of Membrane recovery unit MRU, more particularly, the utility model relates to a kind of film group device that press lye in viscose rayon production is reclaimed in diffusion dialysis that is applicable to, and belongs to the press lye film recovery technology field in viscose rayon production.
Background technology
Production process of viscose fiber in chemical fibre industry, can produce the akaline liquid that contains high-enriched organics (take hemicellulose as main).If let alone direct discharge, serious environmental pollution will be caused.If adopt the method for neutralization, process this alkali lye, a large amount of acid will be consumed, and cause and in alkali lye, form a large amount of inorganic salts, therefore the alkali in this alkali lye is reclaimed, and organic matter is wherein become can carry out the solid matter of harmless treatment to be only the processing mode more friendly to environment.
Viscose staple fibre is the cellulose reprocessing product being present in natural products, have water suction moisturizing, smooth nice and cool, ventilative, antistatic, the characteristic such as gorgeous dyes.Its production process is to use bamboo, wood, cotton, it is raw material that fiber crops etc. are rich in the prepared pulp of cellulosic plant, through caustic soda, flood, yellow, and thereby regeneration obtains viscose rayon product in acid coagulating bath, at caustic soda, flood, the link of squeezing can produce above-mentioned akaline liquid, this akaline liquid is called press lye, be different from the spent lye that other industry produces, its composition is mainly NaOH and hemicellulose, at present the alkali in this alkali lye is reclaimed and also lacks effective means, although adopt Nanofiltering membrane to reclaim alkali in minority field, but still exist the rate of recovery low, the shortcoming that operating cost is high.
Diffusion dialysis is to utilize pellicle or perm-selective ion-ex-change membrane, the process that the solute in solution is moved to low concentration one side by film by high concentration one side, and this process is to take concentration difference as power.It is mainly used in separated and purifying organic and inorganic electrolyte.Aspect environmental project, be mainly used at present processing and the recovery of Suan ﹑ alkali wasteliquid.
It is CN101983756A that State Intellectual Property Office discloses a publication number in 2011.3.9, name is called the patent of invention of " a kind of spiral coil type diffusion dialysis membrane module and preparation method thereof ", this patent discloses a kind of spiral coil type diffusion dialysis membrane module and preparation method thereof, feature is the runner filter that sandwiches amberplex He Qi both sides between two central tubes, mutually be close to around central tube by same direction one roll set, and become cylinder in axial edge adhesive seal; Amberplex end forms the tangential direction runner opening of two radial symmetric in cylinder outer rim, be bonded and sealed respectively and fix a lateral flow tubes, with plastic sheeting, the whole cylinder that comprises lateral flow tubes being taken up to sealing again fixes, form film core, film core is packed in cylindrical housing, two ends is fixing with adhesive casting, forms with four and imports and exports the spiral coil type diffusion dialysis membrane module of taking over.This facility compact loading density is large, can three-dimensional assembling floor space little; Can realize diffusion liquid and the radially spiral counter-current flow of dialysate fluid, less turbulence is large, and mass-transfer efficiency is higher, and elementary membrane area feed liquid treating capacity is large, be easy to react with other or separation equipment integrated.
Diffusion dialysis film group device in currently available technology exists the spacing between film and film excessive, causes diffusion dialysis film group device volume large, and floor space is large, the problem that causes production cost to increase.And the structure of existing diffusion dialysis film group device is not suitable for press lye in the production of diffusion dialysis recovery viscose rayon yet.
Utility model content
It is large that the utility model is intended to the intermembranous distance that solves in diffusion dialysis film group device of the prior art, cause diffusion dialysis film group device volume large, floor space is large, the problem that causes production cost to increase and be not suitable for the recovery of the press lye in viscose rayon production, a kind of film group device that press lye in viscose rayon production is reclaimed in diffusion dialysis that is applicable to is provided, can reclaim efficiently, in high quality press lye in viscose rayon production, and intermembranous distance is little, film group device volume is little, floor space is little, reduces production costs.
In order to realize above-mentioned utility model object, its concrete technical scheme is as follows:
A kind of film group device that is applicable to press lye in the production of diffusion dialysis recovery viscose rayon, comprise the first clamping plate, the second clamping plate, dividing plate and cation-exchange membrane, it is characterized in that: described dividing plate and cation-exchange membrane are a plurality of, and interval is alternately overlapping, and compress mutually, described dividing plate and cation-exchange membrane are squeezed alkali lye runner interlayer and absorption liquid runner interlayer clamps, and described press lye runner interlayer and absorption liquid runner interlayer are clamped by the first clamping plate and the second clamping plate again.
Press lye runner interlayer described in the utility model bottom is provided with press lye import, and top is provided with raffinate outlet.
Absorption liquid runner interlayer described in the utility model bottom is provided with absorption liquid import, and top is provided with reclaims liquid outlet.
Between dividing plate described in the utility model, be provided with polytetrafluoroethylene sealing gasket sheet, thickness is 0.1-0.15mm.
In cation-exchange membrane described in the utility model, the distance between every adjacent two cation-exchange membranes is 0.4-0.9mm.
Cation-exchange membrane described in the utility model is perfluorinated sulfonic acid cation-exchange membrane.
The aperture of cation-exchange membrane described in the utility model is 5-10nm.
Width of flow path in press lye runner interlayer described in the utility model and absorption liquid runner interlayer is 0.2-1mm.
The useful technique effect that the utility model brings:
1, a kind of film group device that is applicable to press lye in the production of diffusion dialysis recovery viscose rayon that the utility model provides, can reclaim efficiently, in high quality press lye in viscose rayon production, and because film and dividing plate replace overlapping compression, spacing is little, the volume of film group device is little, floor space is little, has reduced production cost.
2, press lye runner interlayer described in the utility model bottom is provided with press lye import, top is provided with raffinate outlet, described absorption liquid runner interlayer bottom is provided with absorption liquid import, top is provided with reclaims liquid outlet, the structure of this bottom in and top out, be conducive to pressure balance, discharge bubble, increase the contact area of alkali lye.
3, between dividing plate described in the utility model, be provided with polytetrafluoroethylene sealing gasket sheet, thickness is 0.1-0.15mm, the utility model has adopted polytetrafluoroethylene sealing gasket sheet, thickness is only 1/4 of conventional pads, that common is 0.5-1.0mm, so further dwindle the distance between dividing plate, also just dwindled the distance between cation-exchange membrane; In described cation-exchange membrane, the distance between every adjacent two cation-exchange membranes is 0.4-0.9mm, and the selection of this distance range has increased Reynolds number, increases diffusion coefficient, improves diffusion velocity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model film group device;
Reference numeral: 1 be the first clamping plate, 2 be the second clamping plate, 3 for press lye runner interlayer, 4 for absorption liquid runner interlayer, 5 for press lye import, 6 for absorption liquid import, 7 for raffinate outlet, 8 for reclaim liquid outlet, 9 for cation-exchange membrane, 10 be dividing plate.
The specific embodiment
embodiment 1
A kind of film group device that is applicable to press lye in the production of diffusion dialysis recovery viscose rayon, comprise the first clamping plate 1, the second clamping plate 2, dividing plate 10 and cation-exchange membrane 9, described dividing plate 10 is a plurality of with cation-exchange membrane 9, and interval is alternately overlapping, and compress mutually, described dividing plate 10 is squeezed alkali lye runner interlayer 3 with cation-exchange membrane 9 and absorption liquid runner interlayer 4 clamps, and described press lye runner interlayer 3 and absorption liquid runner interlayer 4 are clamped by the first clamping plate 1 and the second clamping plate 2 again.
embodiment 2
On the basis of embodiment 1, preferred:
Described press lye runner interlayer 3 bottoms are provided with press lye import 5, and top is provided with raffinate outlet 7.
Described absorption liquid runner interlayer 4 bottoms are provided with absorption liquid import 6, and top is provided with reclaims liquid outlet 8.
Between described dividing plate 10, be provided with polytetrafluoroethylene sealing gasket sheet, thickness is 0.1mm.
In described cation-exchange membrane 9, the distance between every adjacent two cation-exchange membranes 9 is 0.4mm.
Described cation-exchange membrane 9 is perfluorinated sulfonic acid cation-exchange membrane.
The aperture of described cation-exchange membrane 9 is 5nm.
Described press lye runner interlayer 3 and the width of flow path in absorption liquid runner interlayer 4 are 0.2mm.
embodiment 3
On the basis of embodiment 1, preferred:
Described press lye runner interlayer 3 bottoms are provided with press lye import 5, and top is provided with raffinate outlet 7.
Described absorption liquid runner interlayer 4 bottoms are provided with absorption liquid import 6, and top is provided with reclaims liquid outlet 8.
Between described dividing plate 10, be provided with polytetrafluoroethylene sealing gasket sheet, thickness is 0.15mm.
In described cation-exchange membrane 9, the distance between every adjacent two cation-exchange membranes 9 is 0.9mm.
Described cation-exchange membrane 9 is perfluorinated sulfonic acid cation-exchange membrane.
The aperture of described cation-exchange membrane 9 is 10nm.
Described press lye runner interlayer 3 and the width of flow path in absorption liquid runner interlayer 4 are 1mm.
On the basis of embodiment 1, preferred:
Described press lye runner interlayer 3 bottoms are provided with press lye import 5, and top is provided with raffinate outlet 7.
Described absorption liquid runner interlayer 4 bottoms are provided with absorption liquid import 6, and top is provided with reclaims liquid outlet 8.
Between described dividing plate 10, be provided with polytetrafluoroethylene sealing gasket sheet, thickness is 0.125mm.
In described cation-exchange membrane 9, the distance between every adjacent two cation-exchange membranes 9 is 0.65mm.
Described cation-exchange membrane 9 is perfluorinated sulfonic acid cation-exchange membrane.
The aperture of described cation-exchange membrane 9 is 7.5nm.
Described press lye runner interlayer 3 and the width of flow path in absorption liquid runner interlayer 4 are 0.6mm.
On the basis of embodiment 1, preferred:
Described press lye runner interlayer 3 bottoms are provided with press lye import 5, and top is provided with raffinate outlet 7.
Described absorption liquid runner interlayer 4 bottoms are provided with absorption liquid import 6, and top is provided with reclaims liquid outlet 8.
Between described dividing plate 10, be provided with polytetrafluoroethylene sealing gasket sheet, thickness is 0.12mm.
In described cation-exchange membrane 9, the distance between every adjacent two cation-exchange membranes 9 is 0.8mm.
Described cation-exchange membrane 9 is perfluorinated sulfonic acid cation-exchange membrane.
The aperture of described cation-exchange membrane 9 is 9nm.
Described press lye runner interlayer 3 and the width of flow path in absorption liquid runner interlayer 4 are 0.3mm.
embodiment 6
Adopt the film group device of embodiment 1-5 to carry out the method that press lye in viscose rayon is reclaimed in diffusion dialysis:
By naoh concentration, be 50-150g/L, hemicellulose concentration is that the press lye of 20-80g/L reduces large granular impurity concentration through filtering pretreatment, then enter in diffusion dialysis film group device with the demineralized water as absorption liquid, mode with cross-flow flows, by cation-exchange membrane, carry out diffusion dialysis, be recycled alkali lye; Gauge pressure in described diffusion dialysis process is 0.03-0.08MPa.
Naoh concentration in the described press lye that reduces large granular impurity concentration through filtering pretreatment is controlled as 50-200g/L, and hemicellulose concentration is controlled as 20-150g/L, and large granular impurity content is controlled as being less than 1g/L.
Above-mentioned large granular impurity comprises bulky grain dust impurity, bulky grain metal impurities etc.
Described cation-exchange membrane is that to take the cloth of a kind of or two kinds of cospinning shapes in nylon, polypropylene, polyvinyl chloride, polytetrafluoroethylene (PTFE) be basement membrane, then with rubbing method, is filmed with perfluorinated sulfonic acid the alkaline-resisting cation-exchange membrane forming.
The thickness of above-mentioned basement membrane is 0.05-2mm.
The aperture of described cation-exchange membrane is 5-10nm.
Width of flow path in described diffusion dialysis film group device is 0.2-1mm.
The flow control of described press lye is 2-20mm/s, and the flow control of described demineralized water is 3-25mm/s.
In described diffusion dialysis film group device, the clearance control between every adjacent two cation-exchange membranes is 0.4-0.9mm.
Naoh concentration in described recovery alkali lye is controlled as 40-160g/L, and hemicellulose concentration is controlled as < 10g/L.
Claims (8)
1. one kind is applicable to the film group device that press lye in viscose rayon production is reclaimed in diffusion dialysis, comprise the first clamping plate (1), the second clamping plate (2), dividing plate (10) and cation-exchange membrane (9), it is characterized in that: described dividing plate (10) is a plurality of with cation-exchange membrane (9), and interval is alternately overlapping, and compress mutually, described dividing plate (10) is squeezed alkali lye runner interlayer (3) with cation-exchange membrane (9) and absorption liquid runner interlayer (4) clamps, described press lye runner interlayer (3) and absorption liquid runner interlayer (4) are clamped by the first clamping plate (1) and the second clamping plate (2) again.
According to claim 1 a kind of be applicable to diffusion dialysis reclaim viscose rayon produce in the film group device of press lye, it is characterized in that: described press lye runner interlayer (3) bottom is provided with press lye import (5), top is provided with raffinate outlet (7).
According to claim 2 a kind of be applicable to diffusion dialysis reclaim viscose rayon produce in the film group device of press lye, it is characterized in that: described absorption liquid runner interlayer (4) bottom is provided with absorption liquid import (6), top is provided with reclaims liquid outlet (8).
4. a kind of film group device that press lye in viscose rayon production is reclaimed in diffusion dialysis that is applicable to according to claim 1, is characterized in that: described dividing plate is provided with polytetrafluoroethylene sealing gasket sheet between (10), and thickness is 0.1-0.15mm.
According to claim 1 a kind of be applicable to diffusion dialysis reclaim viscose rayon produce in the film group device of press lye, it is characterized in that: in described cation-exchange membrane (9), the distance between every adjacent two cation-exchange membranes (9) is 0.4-0.9mm.
6. a kind of film group device that press lye in viscose rayon production is reclaimed in diffusion dialysis that is applicable to according to claim 1, is characterized in that: described cation-exchange membrane (9) is perfluorinated sulfonic acid cation-exchange membrane.
7. according to a kind of film group device that is applicable to press lye in the production of diffusion dialysis recovery viscose rayon described in claim 1 or 6, it is characterized in that: the aperture of described cation-exchange membrane (9) is 5-10nm.
8. according to a kind of film group device that is applicable to press lye in the production of diffusion dialysis recovery viscose rayon described in claim 1 or 3, it is characterized in that: described press lye runner interlayer (3) and the width of flow path in absorption liquid runner interlayer (4) are 0.2-1mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441411.5U CN203389537U (en) | 2013-07-24 | 2013-07-24 | Membrane modulus device applicable to recovering squeezing alkali liquor in viscose production by diffusion dialysis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320441411.5U CN203389537U (en) | 2013-07-24 | 2013-07-24 | Membrane modulus device applicable to recovering squeezing alkali liquor in viscose production by diffusion dialysis |
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| CN203389537U true CN203389537U (en) | 2014-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118022546A (en) * | 2024-03-29 | 2024-05-14 | 山东艾德森生物科技股份有限公司 | Low-viscosity konjak glucomannan separation equipment and method |
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2013
- 2013-07-24 CN CN201320441411.5U patent/CN203389537U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118022546A (en) * | 2024-03-29 | 2024-05-14 | 山东艾德森生物科技股份有限公司 | Low-viscosity konjak glucomannan separation equipment and method |
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Granted publication date: 20140115 |
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