CN1061021A - A kind of method and apparatus of reclaiming waste tri-glycol with super filtration - Google Patents
A kind of method and apparatus of reclaiming waste tri-glycol with super filtration Download PDFInfo
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- CN1061021A CN1061021A CN 90108915 CN90108915A CN1061021A CN 1061021 A CN1061021 A CN 1061021A CN 90108915 CN90108915 CN 90108915 CN 90108915 A CN90108915 A CN 90108915A CN 1061021 A CN1061021 A CN 1061021A
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Abstract
The present invention relates to a kind of method and apparatus that the waste liquid of used triglycol generation such as spinning jet, strainer, filament spinning component is cleaned in chemical fibre industry that reclaims.The invention is characterized in and adopt ultrafiltration process to reclaim waste tri-glycol liquid.Form ultra-filtration equipment by Receiving bin 1, pump 3, hollow fiber membrane ultrafiltration device 6 and variable valve and tensimeter etc., with pump 3 waste tri-glycol liquid is transported in the hollow fiber membrane ultrafiltration device 6, polyester impurity is separated with triglycol, and the present invention has advanced technology, simple, low, safe and reliable, the advantages such as the rate of recovery is high, good product quality of power consumption of equipment.
Description
The present invention is a kind of method that reclaims waste tri-glycol, reclaims waste tri-glycol with ultrafiltration process specifically.
Triglycol is as the clean-out system of the spinning jet of terylene spinning, strainer, filament spinning component etc., and is used for chemical fibre industry in a large number.Use because of repeatedly cleaning repeatedly, the polyester and the impurity that are dissolved in the triglycol constantly increase, and have a strong impact on cleaning performance, and become waste tri-glycol.Waste tri-glycol is a kind of organic solvent, if discharging can cause environmental pollution, damages human health, and causes loss economically.Conventional recovery method is to adopt distillation method.Because the boiling point of triglycol is higher, needs high temperature and decompression operation, power consumption, power consumption, cause combustion explosion easily, and facility investment is big, quality product is difficult to guarantee the cost recovery height.Therefore, how recycling waste tri-glycol, is the unsolved always for a long time difficult problem of chemical fibre industry.
The objective of the invention is in order to solve the deficiencies in the prior art, and provide a kind of efficient fast, economical and energy saving, safe and reliable, equipment and operating procedure simply reclaim the method and the device of waste tri-glycol.
Technical scheme of the present invention is: adopt ultrafiltration process reclaiming clean waste tri-glycol.Form by equipment such as Receiving bin, power-driven pump, ultra-fine filter, variable valve, tensimeters.Receiving bin links to each other with the import of pump by pipeline, variable valve is installed on pipeline, the opening for feed of pump outlet and ultra-fine filter is joined by pipeline, be equipped with variable valve and tensimeter on the pipeline, be equipped with reflux line on the refluxing opening of ultra-fine filter, reflux line is connected with Receiving bin, on reflux line, variable valve is installed.Ultra-fine filter adopts the combination of external-compression type polysulfone hollow fiber ultrafiltration membrane system, and parallel connection, series, parallel series combination form are arranged, and by the size of treatment capacity, can be combined by 2～100 membrane modules.Hollow-fibre membrane is made by polysulfone material, Fibre diameter is 0.4～0.5 millimeter, membranous wall is thick to be 0.15～0.2 millimeter, the micropore of membranous wall is on average at 50～100A, use nylon wire, also can encase thousands of hollow-fibre membranes with polyvinyl chloride net, polythene net, the interior two ends of the plexi-glass tubular of packing into simultaneously stick with glue the bonding end socket of agent, tackiness agent is a Resins, epoxy, polymeric amide and ethene-vinyl acetate fat tackiness agent, one end of plexi-glass tubular is a liquor inlet, and the other end is scavenging solution outlet, apart from 10～25 centimeters places of liquor inlet refluxing opening is arranged; There is the cleaning sewage draining exit at 10～25 centimeters places apart from the scavenging solution outlet.
With pump the waste tri-glycol liquid in the Receiving bin is driven in ultra-fine filter control operating pressure 2～5atm with the linear velocity of 2～3 meter per seconds, working temperature is 10～50 ℃, waste tri-glycol liquid is in the hollow fiber ultrafiltration membrane surface flow, triglycol is cleaned by hollow fiber ultrafiltration membrane because of molecular weight is less, the waste tri-glycol that another part has polyester and impurity flows through the hollow fiber ultrafiltration membrane surface, be back in the Receiving bin with the linear velocity of 1～2 meter per second, driving in ultra-fine filter by pump again separates, so circulation, purify triglycol and reclaim and use, polyester and impurity are collected and become concentrated solution.Because equipment is worked for a long time, the ultra-filtration membrane surface can be contaminated, and main display parameter are decay of through-rate, will clean for this reason.The operating process of cleaning is the same with ordinary production, needn't increase equipment, just with the waste tri-glycol solution in the Receiving bin, changes the outfit and goes up clean-out system, adopts low pressure and mass flow to clean and gets final product, and clean-out system can be ethanol, water.
Fig. 1 reclaims the schematic flow sheet of waste tri-glycol for ultrafiltration process.
Fig. 2 is the structural representation of external-compression type polysulfone hollow fiber ultrafiltration membrane system.
Below in conjunction with accompanying drawing technological process and the device that ultrafiltration reclaims waste tri-glycol is described in further detail:
As shown in Figure 1,1 is that receiving slit, 3 is that pump, 6 is ultrafilter, is equipped with on the pipeline 2 Control valve 4 is equipped with control valve 7 and Pressure gauge 8 on the pipeline 5, on the reflux line 9, control valve 10 is arranged.
As shown in Figure 2, liquor inlet 11 and scavenging solution outlet 12 two ends at membrane module, 10～25 centimeters places apart from liquor inlet 11 are provided with bypass outlet 13,10～25 centimeters places apart from the scavenging solution outlet are provided with sewage draining exit 14, in lucite tube 15, the thousands of hollow fiber ultrafiltration membrane 17 of packing into and encasing with nylon wire 16, hollow fiber ultrafiltration membrane 17 is made by poly-material, and two ends stick with glue agent 18 end sockets.
Pack into waste tri-glycol in the Receiving bin 1 is driven in the ultra-fine filter 6 by pump 3, and in ultra-fine filter 6, waste tri-glycol is divided into two portions, and a part is a concentrated solution, is back to recirculation in the Receiving bin 1 by reflux line 9; Another part is the purification triglycol that sees through hollow fiber ultrafiltration membrane 17, flows out from the scavenging solution outlet 12 of ultra-fine filter 6, reclaims and uses.
The present invention compared with prior art has the following advantages:
1. processing unit is simple, less investment; 2. easy to operate, be easy to grasp; 3. need not the high temperature decompression operation, safe, economical, energy-conservation, cost recovery is low; 4. good product quality, before the processing, amount of polyester is 1～5% in the waste tri-glycol, after the processing, amount of polyester is basically detecting in the triglycol; Through using, quality is good; 5. the rate of recovery is up to more than 95%; 6. pollution-free.
Embodiment:
Recycle 1 ton of waste tri-glycol every day, equipment configuration: Receiving bin: 1 meter 3 of volume; Impeller pump: 25～30 meters of lifts, power about 1, ultra-fine filter is by 4 hollow fiber ultrafiltration membrane parallel arrangement, and accessory is: variable valve, tensimeter, sebific duct etc.
Operating process: open variable valve 4, variable valve 7 earlier, start impeller pump 3, regulating operating pressure by variable valve 10 is 2atm, and return velocity is about 1 meter per second, after the voltage stabilizing, with regard to Sustainable Production.The rate of recovery of triglycol is more than 95%.Output and quality is close with the certified products quality index.
Claims (9)
1, a kind of method that reclaims triglycol, it is characterized in that adopting ultrafiltration process, with pump 3 the waste tri-glycol liquid in the Receiving bin 1 is transported to 6 li of ultra-fine filters, in ultra-fine filter 6, triglycol sees through hollow fiber ultrafiltration membrane 17 and is cleaned, the waste tri-glycol that another part has polyester and impurity flows through the surface of hollow fiber ultrafiltration membrane 17, be back in the Receiving bin 1, drive in the ultra-fine filter 6 by pump 3 again and separate, so circulation, the impurity of polyester is collected and forms concentrated solution, and triglycol is cleaned to reclaim and uses;
2, reclaim the method for waste tri-glycol according to claim 1, the operating line speed that it is characterized in that reclaiming waste tri-glycol is 2～3 meter per seconds, and return wire speed is 1～2 meter per second, and operating pressure is 2～5atm, 10～50 ℃ of working temperatures;
3, the method for recovery waste tri-glycol as claimed in claim 1 is characterized in that the cleaning of membrane module, and just with the waste tri-glycol liquid in the Receiving bin 1, changing the outfit is scavenging solution, adopts low pressure and mass flow to clean;
4,, it is characterized in that said scavenging solution is ethanol or water as the method for claim 1 and the described recovery waste tri-glycol of claim 3;
5, a kind of ultra-filtration equipment that reclaims waste tri-glycol, it is characterized in that Receiving bin 1 links to each other with pump 3 imports by pipeline 2, variable valve 4 is installed on pipeline 2, the outlet of pump 3 is communicated with by pipeline 5 with the opening for feed of ultra-fine filter 6, and variable valve 7 and tensimeter 8 are installed on the pipeline 5, and ultra-fine filter 6 has scavenging solution outlet 12, be equipped with reflux line 9 on the refluxing opening of ultra-fine filter 6, reflux line 9 is connected with Receiving bin, on reflux line 9, variable valve 10 is installed;
6, ultra-filtration equipment as claimed in claim 5, what it is characterized in that said ultra-fine filter 6 employings is the external-compression type hollow-fibre membrane, hollow fiber ultrafiltration membrane 17 is made by polysulfone material, Fibre diameter is 0.4～0.5 millimeter, membranous wall is thick to be 0.15～0.2 millimeter, the micropore of membranous wall is on average at 50～100A, encase thousands of hollow fiber ultrafiltration membrane 17 with nylon wire 16, pack in the plexi-glass tubular 15, two ends stick with glue agent 18 bonding end sockets, and an end of plexi-glass tubular 15 has liquor inlet 11, there is refluxing opening 13 at 10～25 centimeters places apart from liquor inlet 11, the other end has scavenging solution outlet 12, and there is the sewage draining exit 14 of cleaning at 10～25 centimeters places apart from scavenging solution outlet 12;
7,, it is characterized in that said nylon wire 16 can also be polyvinyl chloride net, polythene net as claim 5 and the described ultra-filtration equipment of claim 6;
8,, it is characterized in that said tackiness agent 18 can be Resins, epoxy, polymeric amide and ethene one vinyl acetate tackiness agent as claim 5 and the described ultra-filtration equipment of claim 6;
9, ultra-filtration equipment as claimed in claim 5 is characterized in that said ultra-fine filter 6 can be formed by 2～100 hollow-fibre membrane 18 combination of components, has parallel connection, series, parallel series combination form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108915 CN1061021A (en) | 1990-11-02 | 1990-11-02 | A kind of method and apparatus of reclaiming waste tri-glycol with super filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108915 CN1061021A (en) | 1990-11-02 | 1990-11-02 | A kind of method and apparatus of reclaiming waste tri-glycol with super filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1061021A true CN1061021A (en) | 1992-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90108915 Pending CN1061021A (en) | 1990-11-02 | 1990-11-02 | A kind of method and apparatus of reclaiming waste tri-glycol with super filtration |
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| Country | Link |
|---|---|
| CN (1) | CN1061021A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773749A (en) * | 2010-03-01 | 2010-07-14 | 新疆石油学院 | Method for purifying polyol for preventing natural gas from freezing and dehydrating natural gas and equipment |
| CN105016987A (en) * | 2015-07-09 | 2015-11-04 | 任广鸿 | Method and device for recycling industrial waste containing nylon 66 triglycol |
| CN105237367A (en) * | 2015-09-02 | 2016-01-13 | 山东新时代药业有限公司 | Method of recycling triethylene glycol from synthetic mother liquid of sevoflurane |
-
1990
- 1990-11-02 CN CN 90108915 patent/CN1061021A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773749A (en) * | 2010-03-01 | 2010-07-14 | 新疆石油学院 | Method for purifying polyol for preventing natural gas from freezing and dehydrating natural gas and equipment |
| CN101773749B (en) * | 2010-03-01 | 2012-08-22 | 新疆石油学院 | Method for purifying polyol for preventing natural gas from freezing and dehydrating natural gas and equipment |
| CN105016987A (en) * | 2015-07-09 | 2015-11-04 | 任广鸿 | Method and device for recycling industrial waste containing nylon 66 triglycol |
| CN105237367A (en) * | 2015-09-02 | 2016-01-13 | 山东新时代药业有限公司 | Method of recycling triethylene glycol from synthetic mother liquid of sevoflurane |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |