CN105755588A - Circulation system for water recycled from polyester-containing waste textiles - Google Patents
Circulation system for water recycled from polyester-containing waste textiles Download PDFInfo
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- CN105755588A CN105755588A CN201610193619.8A CN201610193619A CN105755588A CN 105755588 A CN105755588 A CN 105755588A CN 201610193619 A CN201610193619 A CN 201610193619A CN 105755588 A CN105755588 A CN 105755588A
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- containing washing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000002699 waste material Substances 0.000 title claims abstract description 55
- 239000004753 textile Substances 0.000 title claims abstract description 45
- 229920000728 polyester Polymers 0.000 title abstract description 35
- 230000004087 circulation Effects 0.000 title abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 54
- 238000004140 cleaning Methods 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000005056 compaction Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims description 51
- 230000008569 process Effects 0.000 claims description 45
- 238000002360 preparation method Methods 0.000 claims description 15
- 230000017531 blood circulation Effects 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 13
- 230000018044 dehydration Effects 0.000 claims description 12
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 238000001223 reverse osmosis Methods 0.000 claims description 12
- 230000008719 thickening Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 30
- 238000004064 recycling Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000013467 fragmentation Methods 0.000 abstract 1
- 238000006062 fragmentation reaction Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 30
- 239000005020 polyethylene terephthalate Substances 0.000 description 24
- 229920004933 Terylene® Polymers 0.000 description 21
- 239000000047 product Substances 0.000 description 21
- 238000009960 carding Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 12
- 230000008929 regeneration Effects 0.000 description 10
- 238000011069 regeneration method Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000013505 freshwater Substances 0.000 description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000005021 gait Effects 0.000 description 2
- 238000007603 infrared drying Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G11/00—Disintegrating fibre-containing articles to obtain fibres for re-use
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a circulation system for water recycled from polyester-containing waste textiles, and belongs to the field of technologies for recycling or processing waste materials.The circulation system sequentially carries out cutting-off, cleaning, drying, cutting compaction and tackifying.Cutting-off refers to cutting off the polyester-containing waste textiles by reciprocating cutters after the polyester-containing waste textiles are carded by fingers of cut-off machines, the polyester-containing waste textiles are cleaned, dewatered and dried in a fragmentation form after the polyester-containing waste textiles are cut off and have set lengths, the content of moisture in the polyester-containing waste textiles is lower than 0.5% under the control, and the polyester-containing waste textiles are fed into compaction working procedures, are extruded, heated and plasticized and then are tackified.The circulation system is applied to recycling polyester products, and has the advantages of stability in production, multiple raw material varieties, reliable product quality, low energy consumption and the like.
Description
Technical field
The present invention relates to a kind of containing washing waste textile recycle-water blood circulation, belong to recovery or the processing technique field of waste material.
Background technology
PET polyester due to have good physical and chemical stability, cost performance, stretchable performance and become and first synthesize greatly macromolecular material in the world, have the polyester of ten-million-ton scale to enter every year and take field.And as the PET industry in petrochemical industry downstream, it is faced with the present situation that petroleum resources are non-renewable and increasingly exhausted on the one hand, on the other hand, is difficult to degrade under polyester naturalness, the waste and old terylene textile of substantial amounts becomes solid waste, brings huge burden to environment.Therefore, how waste and old polyester goods are reclaimed, it is achieved the Efficient Cycle of resource utilizes, reduce environmental pollution and become the problem that PET industry needs solution badly.
The principle that waste polyester reclaiming should be acted on and be recycled maximization, removal process cleans carries out.Polyester regeneration can be divided into Physical and chemical method regeneration, and Physical refers to and carries out reclaiming by cutting off, pulverize, add the operations such as heat fusing；Chemical recovery is by the polyester depolymerization of solid-state, is converted into less molecule, intermediate raw material, or is converted into monomer, then polycondensation again.Chemical recovering method polyester can reach the level of primary polyester in theory, and can carry out chemical modification, but is limited to the equilibrium problem of decolouring, the technology such as refining and cost, and fails large scale application.
Physical has the features such as investment is saved, processing cost is low, but result in the reduction of the recycled polyester degree of polymerization, form and aspect deterioration due to impurity such as the spinning oil existed in waste and old polyester, printing and dyeing assistants, limits the purposes of recycled polyester.In the not cleaned process route that can reclaim adopted in Zhejiang Lv Yu environmental protection company limited granted patent 201320600503.3,201520531917.4, the programs such as polyester waste material is not cleaned, dry, save water resource, being difficult to the problems such as volatilization yet with surface active agent composition in vacuum draw efficiency and spin finish aid, final products colour, intrinsic viscosity are still not ideal enough.And conventional physical method removal process is cleaned and is needed to consume great lot of water resources, for instance manufacturing in foam material process, product needed per ton consumes more than 4 tons of water；Ministry of Industry and Information No. 40 file " regeneration chemical fibre (terylene) industry standard condition " middle requirement " regeneration chemical fibre (polyester filament) (hereinafter referred to as regenerated terylene long filament) yearly productive capacity is not less than 20,000 tons ", " production of regenerated terylene long filament, fresh water water withdrawal is lower than 0.70 ton/ton ", " recycling rate of water used by the industries is not less than 86% " in 2015.
On the one hand, physical recovering method needs to be carried out and improve polyester quality, on the other hand, it is necessary to the energy consumption in restriction removal process, water consumption, based on this, makes subject application.
Summary of the invention
In order to overcome existing terylene goods to reclaim existing drawbacks described above, the present invention provides a kind of low energy consumption, it is stable to produce, regeneration can be realized containing washing waste textile recycle-water blood circulation.
For achieving the above object, the technical scheme that the present invention takes is as follows:
Containing washing waste textile recycle-water blood circulation, containing washing after waste textile is carried out with broken section of form, impurity and oil preparation are removed in dehydration, control oil content≤0.1% after cleaning, after sending into after drying in road cutting compacting operation, and thickening after supercharging plasticizing；Cleaning is provided with water circulating process, after this water circulating process will clean water process, reuse again.
Further, as preferably:
Described cleaning includes washing, primary dewatering, rinsing, second dehydration, removes impurity and oil preparation, controls oil content≤0.1% after cleaning.
Described cleaning includes once washing, primary dewatering, rinsing, secondary washing, second dehydration, removes impurity and oil preparation, controls oil content≤0.1% after cleaning.
After described water circulating process is arranged on secondary washing step, this water circulating process adopts reverse osmosis, is washed to rinsing or secondary by the Water circulation after processing.
Mechanical hand, carding mechanism, conveying mechanism and reciprocal cutting knife it is provided with in described cutting machine, mechanical hand is positioned at reciprocal cutting knife front, conveying mechanism is then between mechanical hand and reciprocal cutting knife, mechanical hand will be advanced into carding mechanism place containing washing waste textile, carding mechanism moves back and forth after carrying out combing pretreatment, and conveying mechanism is passed to reciprocal cutter and cuts off.It is furthermore preferred that described carding mechanism is provided with tooth-shape structure, and tooth-shape structure highly gradient (to successively decrease preferably)；The conveying mechanism in described reciprocal cutting knife front is provided with pressure roller, for preliminary consolidation and control containing washing waste textile gait of march, thus adjusting shearing length；Described conveying mechanism is conveyer belt；The frequency of reciprocal cutting knife is 10-600 beat/min, and pressure roller rotating speed is according to adjustable containing the requirement washing waste textile shearing length, it is ensured that containing washing the broken segment length 1-10cm of waste textile.Described cutting compacting refers to broken section of high speed rotating on the cutterhead of cutting compacting machine, it is achieved compacting process.Cutterhead rotating speed controls within the scope of 100-600rmp, and in compacting process, compaction is controlled by cutterhead rotating speed, and the height of materials in current feedback compacting machine controls between 250-300A.
The application being applied to terylene containing the recovery and rinsing pretreatment washing the terylene goods such as waste textile, Polyester Textiles, its operation principle is as follows:
Terylene goods are after hydraulic platform and hopper are supplied, broken section of moderate length is formed after combing is cut off, send in matting for these broken section, first carry out washing and remove impurity, carry out rinsing again and remove the oil preparation of broken section surface, then it is centrifuged dehydration, oil content is controlled below 0.1%, finally dry to moisture within 0.5%；After cleaning, drying broken section is sent in cutting compacting machine, in the high-speed rotation of cutterhead, broken section with cutterhead interaction process in complete cutting, simultaneously, kinetic energy is converted into heat energy, moisture and the oil preparation of broken section of upper residual are evaporated, under the intrinsic pressure power effect of compacting machine, broken section of compacting gradually, and upper strata charging does not affect the compacting of broken section of lower floor, therefore charging can carry out with plasticizing simultaneously, and the screw rod bottom the cleaved compacting machine of fluid that plasticizing is formed is delivered in homogenizing thickening still and is balanced and thickening, can put into secondary and utilize.
Compared with conventional polyester way of recycling, having the beneficial effect that of technique provided herein:
(1) multiple processes elimination impurity such as moisture and spinning oil, has widened waste material source.Oil in waste product, water content will result directly in polyester and seriously degrades, form and aspect worsen, thus limiting the purposes of reconstituted product, and it is relevant to reclaim profit content and two aspect factors in end-product, self profit content in first raw material, it two is removal effect in technique, in the application, enter broken section that polyester article is 1-10cm of matting, can fully be fully contacted with water and purificant, oil content can directly be controlled below 0.1% by the completing of matting, drying can adopt infrared drying, while hot blast feeding, by water content control below 0.5%；Meanwhile, in follow-up cutting compacting process, volatilizable to the moisture in broken section and oil preparation thing is steamed by heat further produced by high speed rotating；Follow-up driving screw is provided with vacuum draw mouth, further imurity-removal composition.Therefore, the application is provided with the operation of multiple tracks imurity-removal, the waste and old polyester of recyclable different impurities content.
(2) reuse of water resource can be realized, reduce water and pollute.In the application, cleaning system can arrange reverse osmosis structure (such as reverse osmosis membrane, deionization film etc.) as water circulation mechanism, after this reverse osmosis structure may be provided at rinsing, after may also be arranged on secondary washing, after cleaning water is carried out reverse-osmosis treated by it, clean water reuse is to once washing, (reverse osmosis structure can not remove purificant for rinsing or secondary washing place, now it is used in rinsing place best), the circulation of water resource can be completed, can realize without drain operation in theory, therefore its water consumption well below proposed one ton of GB containing the standard washing one ton of water of waste textile, and solve the problem that water pollutes.
Accompanying drawing explanation
Fig. 1 is the first process chart of the present invention；
Fig. 2 is the second process chart of the present invention；
Fig. 3 is the structural representation of cut-off parts in the present invention；
Fig. 4 is the structural representation of carding mechanism in cutting machine in the present invention；
Fig. 5 is the process chart of comparative example 1；
Fig. 6 is the process chart of comparative example 2.
Number in the figure: A. terylene goods；B. combing product；C. pre-compacted product；D. broken section；1. hydraulic platform；2. hopper；3. tooth-shape structure；4. conveying mechanism；5. pressure roller；6. reciprocal cutting knife.
Detailed description of the invention
Embodiment 1
The present embodiment is containing washing waste textile recycle-water blood circulation, and shown in Fig. 1, broken section of D is carried out, dewatered drying, controls moisture below 0.5%, sends in cutting compacting operation, thickening after supercharging plasticizing.Wherein, cleaning and include washing, primary dewatering, rinsing, second dehydration, be provided with reverse osmosis after rinsing process, the Water circulation after process, to rinsing, removes impurity and oil preparation, controls oil content≤0.1% after cleaning.Dry again, control moisture below 0.5%, send in cutting compacting operation, thickening after supercharging plasticizing.
Wherein, in conjunction with Fig. 3 and Fig. 4, it is breaking in cutting machine and completes, mechanical hand it is provided with in cutting machine, carding mechanism, conveying mechanism and reciprocal cutting knife 6, mechanical hand is positioned at reciprocal cutting knife front, conveying mechanism is then between mechanical hand and reciprocal cutting knife, mechanical hand will be advanced into carding mechanism place containing washing waste textile, carding mechanism is provided with tooth-shape structure 3, and tooth-shape structure 3 highly successively decreases, carding mechanism moves back and forth and carries out combing pretreatment, form the combing product B of opposed flattened, this combing product B forms relatively compact pre-compacted product C through pressure roller 5 pre-compacted, pressure roller 5 is by controlling containing washing waste textile gait of march with the relative rotation speed of conveying mechanism 4 simultaneously.In the present embodiment, conveying mechanism 5 is conveyer belt；The frequency of reciprocal cutting knife is 10-600rpm, and pressure roller rotating speed is according to adjustable containing the requirement washing waste textile shearing length, it is ensured that containing washing the broken segment length 1-10cm of waste textile.
Compacting refers to broken section of high speed rotating on the cutterhead of compacting machine, progressively compacting；Cutterhead rotating speed controls within the scope of 100-600rmp, and in compacting process, compaction is controlled by cutterhead rotating speed, and the height of materials in current feedback compacting machine controls between 250-300A.
In conjunction with Fig. 3, hydraulic platform 1 tilts along direction shown in arrow, terylene goods thereon (for terylene containing washing waste textile) A is made to pour in hopper 2, under the progradation of mechanical hand, move forward to carding mechanism place, the height of the tooth-shape structure 3 in carding mechanism is from high to low, along with moving back and forth of tooth-shape structure 3, it is pulled and methodization gradually containing washing waste textile, while avoiding solid accumulation, completing containing the combing washing waste textile, the combing product B after combing is the consistent regular form in direction；Combing product B continues to be fed forward along with conveying mechanism 4, owing to combing product B now is comparatively fluffy, it is provided above pressure roller 5(pressure roller 5 through conveying mechanism 4 to rotate in the direction of the arrow), pressure roller 5 is by fluffy combing product B pre-compacted secondary smooth formation pre-compacted product C, simultaneously under the clamping action of pressure roller 5 and conveying mechanism 4, the pace of pre-compacted product C is controlled, now, reciprocal cutting knife 6 pumps along its corresponding arrow, and pre-compacted product C is cut into the broken section of D that length is consistent；Broken section of D sends in matting, first carries out washing and removes impurity, then carry out rinsing the oil preparation removing broken section of D surface, is then centrifuged dehydration, is controlled by oil content below 0.1%, finally dry to moisture within 0.5%；Broken section of D after cleaning, drying sends in cutting compacting machine, in the high-speed rotation of cutterhead, broken section of D and cutterhead interaction process complete cutting, simultaneously, kinetic energy is converted into heat energy, the moisture and the volatilizable thing of oil preparation that remain on broken section of D are evaporated, under the intrinsic pressure power effect of compacting machine, broken section of D compacting gradually, and upper strata charging does not affect the compacting of broken section of lower floor, therefore charging and compacting can carry out simultaneously, filtration after driving screw extrusion molten is delivered to for broken section through the screw rod bottom compacting machine, homogenizing thickening in homogenizing thickening still is delivered to then through booster pump, recycle after the pelletizing of Cast Strip.
In aforesaid operations process, feed is realized by mechanical hand, carding mechanism and conveying mechanism 4, material is constantly advanced by mechanical hand, make in hopper 2 feed all the time sufficient, the tooth-shape structure 3 of rational height gradual change in carding mechanism, this tooth-shape structure 3 will be hauled out containing washing waste textile, and so as to move forward with it, and in moving process, carry out regular combing, make containing washing waste textile all in identical tendency, therefore, mechanical hand, carding mechanism and conveying mechanism 4 form the form of automatic feed, automatic carding；Reciprocal cutting knife 6 pumps, and achieves the cut-out of fiber in moving up and down process.
In waste product, oil preparation, moisture content will result directly in polyester and seriously degrades, and form and aspect worsen, thus limiting the purposes of reconstituted product.In the application, enter the broken section of D that polyester article is 1-10cm of matting, can fully be fully contacted with water and purificant, oil content can directly be controlled below 0.1% by the completing of matting, drying can adopt infrared drying, while hot blast feeding, by water content control below 0.5%；Simultaneously, in follow-up cutting compacting process, moisture in broken section of D and oil are steamed by heat further produced by high speed rotating, deep removal profit, just can fully removing the oil in terylene goods, water by cleaning and cut compacting in technique, therefore, terylene goods material quality is not limit by the technique that the application adopts, its source is more extensive, and the terylene goods related to all can put into recovery；After cleaning water is carried out reverse-osmosis treated by water circulating process, clean water reuse can contain a certain amount of purificant to the water of this reuse of rinsing place, strengthen wash effect, thus the circulation of water resource can be completed, not only reduce water consumption, water consumption is made to control 0.1 ton of water correspondence 1 ton containing washing waste textile, require " regeneration chemical fibre (polyester filament) (hereinafter referred to as regenerated terylene long filament) yearly productive capacity is not less than 20,000 tons " far below in " regeneration chemical fibre (terylene) industry standard condition ", " the production of regenerated terylene long filament, fresh water water withdrawal is lower than 0.70 ton/ton ", " recycling rate of water used by the industries is not less than 86% ".
In compacting operation, the raw material carrying out compacting is broken section of D-shaped state, in compacting process, the distribution of lengths of this 1-10cm broken section of D uniformly is easier to compacting, and bulk density is uniform, it is to avoid the yield caused by fluff bulk, density fluctuation is unstable.
Embodiment 2
The present embodiment is identical with the setting of embodiment 1 and operation principle, it is distinctive in that: in conjunction with Fig. 2, cleaning includes once washing, primary dewatering, rinsing, secondary washing, second dehydration and water circulating process, remove impurity and oil preparation, oil content≤0.1% is controlled after cleaning, being provided with reverse osmosis after secondary washing step as water circulating process, the Water circulation after process is to rinsing.
After cleaning water is carried out reverse-osmosis treated by water circulating process, clean water reuse is to rinsing place, the water of this reuse can contain a certain amount of purificant, strengthen wash effect, thus the circulation of water resource can be completed, not only reduce water consumption, water consumption is made to control 0.1 ton of water correspondence 1 ton containing washing waste textile, require " regeneration chemical fibre (polyester filament) (hereinafter referred to as regenerated terylene long filament) yearly productive capacity is not less than 20,000 tons " far below in " regeneration chemical fibre (terylene) industry standard condition ", " the production of regenerated terylene long filament, fresh water water withdrawal is lower than 0.70 ton/ton ", " recycling rate of water used by the industries is not less than 86% ".
Comparative example 1
With patent 201320600503.3 embodiment 1 as a comparison, in conjunction with Fig. 5, concrete scheme no longer describes in detail.
Comparative example 2
With patent 201520531917.4 embodiment 2 as a comparison, in conjunction with Fig. 6, concrete scheme no longer describes in detail.
The application and comparative example 1, comparative example 2 being contrasted, its result collects as shown in table 1.
Effect comparison table under the different embodiment of table 1
Adopting scheme provided herein, comparative example 1 realizes the broken of fiber by the role of tear of hobboing cutter in disintegrating machine；Comparative example 2 passes through stationary knife, the grinding role of tear of moving knife, and waste and old terylene goods are carried out pretreatment with broken section of form in the application, this broken section and comparative example 1, comparative example 2 is ruptured irregular, breaking length is uncontrollable, the process state of the forms such as Filament-wound Machine is different, adopt the form of the application, both cleaning materials and cleaning agent (water can farthest have been increased, purificant etc.) between contact surface, simultaneously, it is also beneficial to follow-up drying and reduces the degraded of extruding intensification plasticizing process, after cleaning pretreatment, the oil content on broken section is relatively low, moisture content is effectively controlled, formed follow-up quality of finished uniformly guaranteed.
Therefore, process route provided herein, not only energy consumption is low, yield is high, and water consumption is only the 1/10 of prior art, and in comparative example 1, polyester degraded is big, b value is high, and comparative example 2 is higher using industrial yarn as reclaiming original made product colour, and Pillar recovery is only capable of degradation and uses；And the finished product of the reclaimed preparation of the application can reduce polyester palliating degradation degree, intrinsic viscosity reduces limited, and colour is low, it is ensured that product quality, it is achieved regeneration.
Claims (9)
1. containing washing waste textile recycle-water blood circulation, it is characterized in that: containing washing after waste textile is carried out with broken section of form, impurity and oil preparation are removed in dehydration, control oil content≤0.1% after cleaning, after sending into after drying in road compacting operation, thickening after extruding pressure build up plasticizing；Cleaning is provided with water circulating process, after this water circulating process will clean water process, reuse again.
2. as claimed in claim 1 containing washing waste textile recycle-water blood circulation, it is characterised in that: described it is sequentially carried out washing, primary dewatering, rinsing, second dehydration containing washing waste textile, removes impurity and oil preparation, control oil content≤0.1% after cleaning.
3. as claimed in claim 2 containing washing waste textile recycle-water blood circulation, it is characterised in that: described water circulating process is arranged at and rinses or after second dehydration, and after it adopts reverse osmosis will clean water process, reuse is to rinsing again.
4. as claimed in claim 1 containing washing waste textile recycle-water blood circulation, it is characterized in that: described be sequentially carried out once washing, primary dewatering, rinsing, secondary washing, second dehydration containing washing waste textile, remove impurity and oil preparation, after cleaning, control oil content≤0.1%.
5. as claimed in claim 4 containing washing waste textile recycle-water blood circulation, it is characterised in that: after described water circulating process is arranged at rinsing or second dehydration, after it adopts reverse osmosis to be processed by cleaning water, reuse is washed to rinsing or secondary again.
6. as described in any one of claim 1-5 containing washing waste textile recycle-water blood circulation, it is characterised in that: described broken segment length is 1-10cm.
7. as claimed in claim 1 containing washing waste textile recycle-water blood circulation, it is characterised in that: described compacting refers to broken section of high speed rotating on the cutterhead of compacting machine, it is achieved compacting process.
8. as claimed in claim 7 containing washing waste textile recycle-water blood circulation, it is characterized in that: described cutterhead rotating speed controls within the scope of 100-600rmp, in compacting process, compaction is controlled by cutterhead rotating speed, the height of materials in current feedback compacting machine, controls between 250-300A.
9. as described in claim 1,7 or 8 containing washing waste textile recovery system, it is characterised in that: in described compacting process, temperature of charge >=100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193619.8A CN105755588A (en) | 2016-03-31 | 2016-03-31 | Circulation system for water recycled from polyester-containing waste textiles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193619.8A CN105755588A (en) | 2016-03-31 | 2016-03-31 | Circulation system for water recycled from polyester-containing waste textiles |
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| CN105755588A true CN105755588A (en) | 2016-07-13 |
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| CN201610193619.8A Pending CN105755588A (en) | 2016-03-31 | 2016-03-31 | Circulation system for water recycled from polyester-containing waste textiles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111659496A (en) * | 2020-05-19 | 2020-09-15 | 陈式好 | Adherence type weaving waste water fibre interception breaker that fluctuates |
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