CN105862180A - Energy conservation process for recycling polyester-containing waste textiles - Google Patents
Energy conservation process for recycling polyester-containing waste textiles Download PDFInfo
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- CN105862180A CN105862180A CN201610193621.5A CN201610193621A CN105862180A CN 105862180 A CN105862180 A CN 105862180A CN 201610193621 A CN201610193621 A CN 201610193621A CN 105862180 A CN105862180 A CN 105862180A
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- compacting
- energy saving
- waste
- cutting
- saving technique
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- 239000002699 waste material Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000008569 process Effects 0.000 title claims abstract description 32
- 239000004753 textile Substances 0.000 title claims abstract description 20
- 229920000728 polyester Polymers 0.000 title abstract description 29
- 238000004064 recycling Methods 0.000 title abstract description 9
- 238000004134 energy conservation Methods 0.000 title abstract 3
- 238000005520 cutting process Methods 0.000 claims abstract description 43
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 238000005406 washing Methods 0.000 claims description 30
- 238000009960 carding Methods 0.000 claims description 21
- 238000011084 recovery Methods 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 12
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 238000001764 infiltration Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 230000008719 thickening Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 27
- 229920004933 Terylene® Polymers 0.000 description 24
- 239000000047 product Substances 0.000 description 21
- 239000000835 fiber Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 239000000126 substance Substances 0.000 description 9
- 230000008929 regeneration Effects 0.000 description 8
- 238000011069 regeneration method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000013505 freshwater Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 4
- 238000001223 reverse osmosis Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000005021 gait Effects 0.000 description 2
- 238000007603 infrared drying Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003921 oil Substances 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
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- -1 therefore 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B2017/001—Pretreating the materials before recovery
- B29B2017/0015—Washing, rinsing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/044—Knives
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to an energy conservation process for recycling polyester-containing waste textiles and belongs to the technical field of waste material recycling or processing. The process comprises the steps of cutting-off, cleaning, drying, cutting and compacting and tackifying which are set in sequence; the cutting-off step means that after being carded through a cutting-off machine, waste silk is cut off through a reciprocating cutter; after the waste silk is cut off to reach the set length, cleaning, dewatering and drying are conducted in the form of fragmented segments; the moisture content is controlled to be 0.5% or below, the waste silk is sent into the cutting and compacting procedure, squeezing and temperature-raised plastification are conducted, and then tackifying is conducted. The energy conservation process recycling and reutilizing polyester products and has the advantages of being stable in production, large in number of raw material varieties, reliable in product quality, low in energy consumption and the like.
Description
Technical field
The present invention relates to a kind of containing washing waste textile recovery energy saving technique, belong to recovery or the process technology neck of waste material
Territory.
Background technology
PET polyester due to have good physical and chemical stability, cost performance, stretchable performance and become in the world first
Synthesize greatly macromolecular material, have the polyester of ten-million-ton scale to enter every year and take field.And as the PET industry in petrochemical industry downstream, one
Aspect is faced with the present situation that petroleum resources are non-renewable and increasingly exhausted, on the other hand, is difficult to degrade under polyester nature, number
Measure huge waste and old terylene textile and become solid waste, bring huge burden to environment.Therefore, how to waste and old poly-
Ester articles reclaims, it is achieved the Efficient Cycle of resource utilizes, and minimizing environmental pollution becomes PET industry and needs asking of solution badly
Topic.
The principle that waste polyester reclaiming should be acted on and be recycled maximization, removal process cleans is carried out.Poly-
Ester regeneration can be divided into Physical and chemical method regeneration, and Physical refers to reclaim by cutting off, pulverize, add the operations such as heat fusing
Regeneration；Chemical recovery is by the polyester depolymerization of solid-state, is converted into less molecule, intermediate raw material, or is converted into monomer, so
After 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
Decolouring, the equilibrium problem of the technology such as refined and cost, and fail large scale application.
Physical has features such as investment is saved, processing cost is low, but due to spinning oil present in waste and old polyester,
The impurity such as printing and dyeing assistant and result in the recycled polyester degree of polymerization reduce, form and aspect deteriorate, limit the purposes of recycled polyester.Zhejiang is green
In space environmental protection Co., Ltd granted patent 201320600503.3,201520531917.4, the most cleaned of employing can be reclaimed
Process route in, the programs such as polyester waste material is the most cleaned, dry, saved water resource, yet with vacuum draw efficiency with
And surface active agent composition is difficult to the problems such as volatilization in spin finish aid, final products colour, intrinsic viscosity are the most not ideal enough.And
Conventional physical method removal process is cleaned needs to consume great lot of water resources, such as, during manufacturing foam material, product needed per ton disappears
Consume more than 4 tons of water；Ministry of Industry and Information's No. 40 file " regeneration chemical fibre (terylene) industry standard condition " middle requirement in 2015 " regenerates
Chemical fibre (polyester filament) (hereinafter referred to as regenerated terylene long filament) yearly productive capacity is not less than 20,000 tons ", " regenerated terylene long filament
Production, fresh water water withdrawal be less than 0.70 ton/ton ", " recycling rate of water used by the industries is not less than 86% ".
On the one hand, physical recovering method needs to be carried out and improve polyester quality, on the other hand, needs to limit removal process
In energy consumption, water consumption, based on this, make subject application.
Summary of the invention
In order to overcome the drawbacks described above existing for the recovery of existing terylene goods, the present invention provides a kind of low energy consumption, produces surely
Determine, can realize washing waste textile recovery energy saving technique containing of waste and old polyester regeneration.
For achieving the above object, the technical scheme that the present invention takes is as follows:
Containing wash waste textile reclaim energy saving technique, including the cut-out being sequentially arranged, clean, dry, cut compacting and thickening, institute
The cut-out stated is that waste silk is cut off by reciprocal cutting knife after cutting machine refers to combing, after waste silk is cut to preseting length, with broken section of shape
Formula is carried out, dewatered drying, and control moisture, below 0.5%, is sent in compacting operation, the broken section of screw rod bottom compacting machine
Filter after delivering to driving screw extrusion molten, the more intensified homogenizing that is pumped to viscosifies homogenizing thickening in still, Cast Strip granulation.
Further, as preferably:
Described cleaning includes washing, primary dewatering, rinsing, second dehydration, removes the removal of impurity and finish, controls oil content after cleaning
≤0.1%。
Described cleaning includes once washing, primary dewatering, rinsing, secondary washing, second dehydration, remove the removal of impurity and oil
Agent, controls oil content≤0.1% after cleaning.It is furthermore preferred that described cleaning is provided with water circulation mechanism, i.e. described secondary
Being provided with counter-infiltration structure after washing step, the Water circulation after process to rinsing or is once washed.
Being provided with manipulator, carding mechanism, conveying mechanism and reciprocal cutting knife in described cutting machine, manipulator is positioned at back and forth
Cutting knife front, conveying mechanism is then between manipulator and reciprocal cutting knife, and waste silk is advanced at carding mechanism by manipulator, combing
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 it is described
Carding mechanism on be provided with tooth-shape structure, and tooth-shape structure highly gradient (to successively decrease preferably)；Described reciprocal cutting knife front
Conveying mechanism on be provided with pressure roller, for preliminary consolidation and control waste silk gait of march, thus adjust shearing length；Described
Conveying mechanism is conveyer belt；The frequency of reciprocal cutting knife is 10-600rpm, and pressure roller rotating speed can according to the requirement of waste silk shearing length
Adjust, it is ensured that broken segment length 1-10cm of waste silk.Described compacting refers to broken section of High Rotation Speed on the cutterhead of compacting machine, cuts further
Progressively being compacted while Duan, fricative heat takes away the moisture in waste silk, the part in finish is volatilizable thing further.Cutter
Dish rotating speed controls in the range of 100-600rmp, and in compacting process, compaction is controlled by cutterhead rotating speed, current feedback compacting machine
In height of materials, control between 250-300A.
The application is applied to the recovery of the terylene goods such as terylene waste, Polyester Textiles, and its operation principle is as follows:
Terylene goods are in hopper poured into by hydraulic platform, under the progradation of manipulator, move forward at carding mechanism, comb
Tooth-shape structure in reason mechanism is height grading structure (time the most from high to low, combing effect is more preferably), along with tooth-shape structure
(left and right) moves back and forth, and waste silk is pulled and gradually methodization, it is to avoid while solid accumulation, complete the combing of waste silk, comb
Waste silk after reason is the regular form that direction is consistent；Waste silk continues to be fed forward along with conveying mechanism, due to waste silk now relatively
For fluffy, when being fed directly to reciprocal cutter, the length after cut-out is longer, and therefore the conveying mechanism in cutting knife front is provided above
Pressure roller (direction of rotation is consistent with conveying mechanism, may be configured as single, it is possible to horizontal pair is arranged), pressure roller is by pre-for fluffy waste silk
Compacting secondary are smooth, and simultaneously under the pressure roller clamping action with conveying mechanism, the pace of waste silk is controlled, now,
The frequency of reciprocal cutting knife may be configured as at the uniform velocity, and along with the incremented/decremented of waste silk pace, the length of broken section be incremented by/is passed therewith
Subtract；Send in matting for broken section, first carry out washing and remove impurity, then carry out rinsing the finish removing broken section surface, then enter
Row centrifugal dehydration, controls oil content below 0.1%, finally dries to moisture within 0.5%；After cleaning, drying
Sending in cutting compacting machine for broken section, in the high-speed rotation of cutterhead, broken section mutual with the stationary knife in cutterhead, compacting machine tank body
Completing compacting process in mechanism, meanwhile, friction produces substantial amounts of heat, it is ensured that broken section of temperature >=100 DEG C of waste silk, on broken section
Volatilizable thing evaporation in the moisture of residual and finish, under cutting compacting machine internal pressure power effect, broken section is gradually compacted and moulds
Changing, and upper strata charging does not affect the compacting of broken section of lower floor, therefore feeds and is compacted to carry out simultaneously, broken section after compacting cleaved
Screw rod bottom compacting machine filters after delivering to driving screw extrusion molten, the more intensified homogenizing that is pumped to viscosifies homogenizing increasing in still
Viscous, recycle after the pelletizing of Cast Strip.Compared with conventional polyester way of recycling, the beneficial effect of technique provided herein is such as
Under:
(1) energy consumption is low, and yield is high, and automaticity is high.In the application, feed is by manipulator, carding mechanism and conveyer
Structure realizes, and material is constantly advanced by manipulator, makes feed abundance, rational height gradual change in carding mechanism all the time in hopper
Tooth-shape structure, waste silk is hauled out, and is allowed to move forward with it, and carries out regular comb in moving process by this tooth-shape structure
Reason, makes waste silk along direction of advance marshalling, and therefore, manipulator, carding mechanism and conveying mechanism form automatic feed, auto-comb
The form of reason；Reciprocal cutting knife, for moving up and down, achieves the cut-out of fiber during moving up and down, with the tear fracture of routine (as
Stationary knife in the role of tear of hobboing cutter in the disintegrating machine of patent 201320600503.3, patent 201520531917.4, the grinding of moving knife
Mill role of tear) mode compares, and the application uses cut-out mode, it is to avoid this fracture torn is irregular, breaking length can not
The defects such as control, fiber winding, reciprocating cutting frequency is controlled and frequency is higher, and its productivity can reach 3-8t/h, the product of unit interval
Amount is about more than 2 times of usual manner, and uses crushing cutter/disintegrating machine energy consumption relatively big, and the reciprocal cut-out that the application is used
Energy consumption is controlled at reduced levels by mode, is about the 1/4 of conventional grinding mode power consumption.
(2) multiple processes removing impurity such as moisture and spinning oil, has widened waste material source.In waste product, oil, water contain
Amount will result directly in polyester and seriously degrades, and form and aspect deteriorate, thus limit the purposes of reconstituted product, and reclaim profit in end-product
Content and two aspect factors are relevant, self profit content in first raw material, and 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, matting
Completing directly to be controlled below 0.1% by oil content, drying can use infra-red drying, while hot blast feeding, by aqueous
Amount controls below 0.5%；Meanwhile, in follow-up cutting compacting process, heat produced by High Rotation Speed is further by broken section
In moisture and the volatilizable thing of finish steam；Vacuum draw mouth, further imurity-removal composition it is provided with in follow-up driving screw.
Therefore, the application is provided with the operation of multiple tracks imurity-removal, the waste and old polyester of recyclable different impurities content.
(3) reuse of water resource can be realized, reduce water and pollute.In the application, cleaning system can arrange counter-infiltration knot
Structure (such as reverse osmosis membrane, deionization film etc.) is as water circulation mechanism, after this counter-infiltration structure may be provided at rinsing, it is possible to arrange
After secondary is washed, after rinse water is carried out reverse-osmosis treated by it, clean water reuse is to once washing, rinse or secondary water
Place's of washing (counter-infiltration structure can not remove purificant, is now used at rinsing optimal), can complete the circulation of water resource, in theory
Can realize without drain operation, therefore its water consumption requires " again far below in " regeneration chemical fibre (terylene) industry standard condition "
Biochemical fiber (polyester filament) (hereinafter referred to as regenerated terylene long filament) yearly productive capacity is not less than 20,000 tons ", " regenerated terylene is long
Silk production, fresh water water withdrawal be less than 0.70 ton/ton ", " recycling rate of water used by the industries is not less than 86% "., 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.
Label in figure: A. terylene goods；B. combing product；C. pre-compacted product；The most 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 reclaims energy saving technique containing washing waste textile, shown in Fig. 1, including cutting off, clean, dry, cutting pressure
Real and thickening, cuts off, cleans, dries, cuts compacting and thickening is carried out successively, and fluffy mixed and disorderly terylene goods A is with broken section of D-shaped formula
Be carried out, dewatered drying, control moisture below 0.5%, send into cutting compacting operation in, after compacting extruding heat up plasticizing, increase
Viscous.
Wherein, in conjunction with Fig. 3 and Fig. 4, it is breaking in cutting machine and completes, in cutting machine, be provided with manipulator, carding mechanism, defeated
Sending mechanism and reciprocal cutting knife 6, manipulator is positioned at reciprocal cutting knife front, conveying mechanism then between manipulator and reciprocal cutting knife,
Waste silk is advanced at carding mechanism by manipulator, and carding mechanism is provided with tooth-shape structure 3, and tooth-shape structure 3 highly successively decreases, comb
Reason mechanism moves back and forth and carries out combing pretreatment, forms the combing product B of opposed flattened, and this combing product B is through pressure roller 5 pre-compacted
Forming relatively compact pre-compacted product C, pressure roller 5 controls waste silk gait of march by the relative rotation speed with 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 cuts off long according to waste silk
The requirement of degree is adjustable, it is ensured that broken segment length 1-10cm of waste silk.Broken section of D is carried out, dewatered drying, control moisture 0.5% with
Under, send in cutting compacting operation, viscosify after supercharging plasticizing.Wherein, cleaning includes that washing, primary dewatering, rinsing, secondary take off
Water, removes the removal of impurity and finish, controls oil content≤0.1% after cleaning.
Compacting refers to broken section of High Rotation Speed on the cutterhead of compacting machine, is progressively compacted；Cutterhead rotating speed controls at 100-
In the range of 600rmp, in compacting process, compaction is controlled by cutterhead rotating speed, 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 so that it is on terylene goods (as a example by terylene waste) A
Pour in hopper 2, under the progradation of manipulator, move forward at carding mechanism, the tooth-shape structure 3 in carding mechanism
The most from high to low, along with moving back and forth of tooth-shape structure 3, waste silk is pulled and gradually methodization, it is to avoid solid accumulation
Meanwhile, completing the combing of waste silk, the combing product B after combing is the consistent regular form in direction；Combing product B is along with conveyer
Structure 4 continues to be fed forward, and owing to combing product B now is the most fluffy, is provided above pressure roller 5(pressure roller 5 edge through conveying mechanism 4
The direction of arrow rotates), pressure roller 5 is by fluffy combing product B pre-compacted secondary smooth formation pre-compacted product C, simultaneously in pressure
Roller 5 is with under the clamping action of conveying mechanism 4, and the pace of pre-compacted product C is controlled, and now, reciprocal cutting knife 6 is along its institute
Corresponding arrow pumps, and pre-compacted product C is cut into the broken section of D that length is consistent；Broken section of D sends into scavenger
In sequence, first carry out washing and remove impurity, then carry out rinsing the finish removing broken section of D surface, be then centrifuged dehydration, by finish
Content controls below 0.1%, finally dries to moisture within 0.5%；Broken section of D after cleaning, drying sends into compacting machine
In, in the high-speed rotation of cutterhead, broken section of D completes compacting in cutterhead interaction process, and meanwhile, kinetic energy is converted into heat
Can, on broken section of D, moisture and the volatilizable thing of finish of residual are evaporated, and under compacting machine internal pressure power effect, broken section of D gradually presses
In fact, and upper strata charging does not affect the compacting of broken section of lower floor, therefore feeds and is compacted to carry out simultaneously, and broken section bottom compacting machine
Screw rod filters after delivering to driving screw extrusion molten, the more intensified homogenizing that is pumped to viscosifies homogenizing thickening in still, Cast Strip pelletizing
After recycle.
During aforesaid operations, feed is realized by manipulator, carding mechanism and conveying mechanism 4, and manipulator is by thing
Material constantly advances, and makes in hopper 2 feed all the time sufficient, the tooth-shape structure 3 of rational height gradual change in carding mechanism, this tooth
Waste silk is hauled out by shape structure 3, and is allowed to move forward with it, and carries out regular combing in moving process, makes waste silk all in phase
Same tendency, therefore, manipulator, carding mechanism and conveying mechanism 4 form the form of automatic feed, automatic carding；Reciprocal cutting knife 6
Pump, during moving up and down, achieve the cut-out of fiber.
In waste product, finish, moisture content will result directly in polyester and seriously degrades, and form and aspect deteriorate, thus limit reconstituted product
Purposes.In the application, enter the broken section of D that polyester article is 1-10cm of matting, can fully fill with water and purificant
Tap is touched, and oil content can directly be controlled below 0.1% by the completing of matting, and drying can use infra-red drying, and hot blast send
While material, by water content control below 0.5%；Meanwhile, in follow-up compacting process, heat produced by High Rotation Speed
Further the moisture in broken section of D and finish are steamed, remove profit further, the most permissible by technique is cleaned and cut compacting
The fully oil in removing terylene goods, water, therefore, terylene goods material quality is not limited by the technique that the application is used, and it comes
Source is more extensive, and the terylene goods related to all can put into recovery.
In compacting operation, the raw material carrying out being compacted is broken section of D-shaped state, and in compacting process, the length of this 1-10cm is divided
Cloth the most broken section of D 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, and difference is: clean include once washing, primary dewatering,
Rinsing, secondary washing, second dehydration, remove the removal of impurity and finish, controls oil content≤0.1% after cleaning.
Embodiment 3
The present embodiment is identical with the setting of embodiment 1 and operation principle, and difference is: combine Fig. 2, is provided with water circulation in cleaning
Mechanism, is provided with counter-infiltration structure after rinsing process, the Water circulation after process is to rinsing.
After rinse water is carried out reverse-osmosis treated by water circulation mechanism, meeting in the water of this reuse at clean water reuse to rinsing
Containing a certain amount of purificant, strengthen wash effect, thus the circulation of water resource can be completed, not only reduce water consumption, make consumption
Water rate control, at the corresponding 1 ton of waste silk of 0.1 ton of water, requires " again far below in " regeneration chemical fibre (terylene) industry standard condition "
Biochemical fiber (polyester filament) (hereinafter referred to as regenerated terylene long filament) yearly productive capacity is not less than 20,000 tons ", " regenerated terylene is long
Silk production, fresh water water withdrawal be less than 0.70 ton/ton ", " recycling rate of water used by the industries is not less than 86% ".
Embodiment 4
The present embodiment is identical with the setting of embodiment 1 and operation principle, and difference is: clean include once washing, primary dewatering,
Rinsing, secondary washing, second dehydration and water circulation mechanism, remove the removal of impurity and finish, controls oil content≤0.1%, secondary after cleaning
It is provided with counter-infiltration structure after washing step extremely to rinse as water circulation mechanism, the Water circulation after process.
After rinse water is carried out reverse-osmosis treated by water circulation mechanism, meeting in the water of this reuse at clean water reuse to rinsing
Containing a certain amount of purificant, strengthen wash effect, thus the circulation of water resource can be completed, not only reduce water consumption, make consumption
Water rate control, at the corresponding 1 ton of waste silk of 0.1 ton of water, requires " again far below in " regeneration chemical fibre (terylene) industry standard condition "
Biochemical fiber (polyester filament) (hereinafter referred to as regenerated terylene long filament) yearly productive capacity is not less than 20,000 tons ", " regenerated terylene is long
Silk production, fresh water water withdrawal be less 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, concrete scheme no longer describes in detail.
Comparative example 2
With patent 201520531917.4 embodiment 2 as a comparison, concrete scheme no longer describes in detail.
The application being contrasted with comparative example 1, comparative example 2, its result collects as shown in table 1.
Effect comparison table under the different embodiment of table 1
Using scheme provided herein, comparative example 1 is to realize fiber by the role of tear of hobboing cutter in disintegrating machine
Broken；Comparative example 2 is by stationary knife, the grinding role of tear of moving knife, the application then be use with comparative example 1,
Comparative example 2 diverse cut-out mode, it is to avoid tear that caused fracture is irregular, breaking length is uncontrollable, fiber
The defects such as winding, and reciprocating cutting frequency is controlled and frequency is higher, the yield of unit interval is about more than 2 times of usual manner,
Meanwhile, using crushing cutter/disintegrating machine energy consumption relatively big, and the application consumes energy low, yield is high, and automaticity is high, and it is used
Energy consumption is controlled at reduced levels by reciprocal cut-out mode, is about the 1/4 of conventional grinding mode power consumption.
Therefore, process route provided herein, not only energy consumption is low, and yield is high, and water consumption is only the 1/ of prior art
10, and in comparative example 1, polyester degraded is big, b value is high, comparative example 2 using industrial yarn as reclaim original made by
Product colour is higher, 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.
Claims (10)
1. reclaim energy saving technique containing washing waste textile, it is characterised in that: include the cut-out being sequentially arranged, clean, dry, press
Reality, extrusion molten and thickening, described cut-out is that waste silk is cut off by reciprocal cutting knife after cutting machine refers to combing, is cut to by waste silk
After preseting length, be carried out with broken section of form, dewatered drying, control moisture below 0.5%, send into compacting operation in, supercharging
Viscosify after plasticizing, Cast Strip pelletizing.
2. as claimed in claim 1 containing washing waste textile recovery energy saving technique, it is characterised in that: described cleaning includes water
Wash, primary dewatering, rinsing, second dehydration, remove the removal of impurity and finish, after cleaning control oil content≤0.1%.
3. as claimed in claim 1 containing washing waste textile recovery energy saving technique, it is characterised in that: described cleaning includes one
Secondary washing, primary dewatering, rinsing, secondary washing, second dehydration, remove the removal of impurity and finish, controls oil content≤0.1% after cleaning.
4. wash waste textile and reclaim energy saving technique containing as described in any one of claim 1-3, it is characterised in that: described is clear
It is provided with water circulation mechanism in washing, this water circulation mechanism arranges counter-infiltration structure, after rinse water is processed by counter-infiltration structure, then
Secondary reuse.
5. as claimed in claim 1 containing washing waste textile recovery energy saving technique, it is characterised in that: set in described cutting machine
Being equipped with manipulator, carding mechanism, conveying mechanism and reciprocal cutting knife, manipulator is positioned at reciprocal cutting knife front, and conveying mechanism is then positioned at
Between manipulator and reciprocal cutting knife, waste silk is advanced at carding mechanism by manipulator, and carding mechanism moves back and forth that to carry out combing pre-
After process, conveying mechanism is passed to reciprocal cutter and cuts off.
6. as claimed in claim 5 containing washing waste textile recovery energy saving technique, it is characterised in that: on described carding mechanism
It is provided with tooth-shape structure, and the highly gradient of tooth-shape structure.
7. as claimed in claim 5 containing washing waste textile recovery energy saving technique, it is characterised in that: before described reciprocal cutting knife
It is provided with pressure roller, for pre-compacted and adjust shearing length on the conveying mechanism of side.
8. wash waste textile and reclaim energy saving technique containing as described in claim 1,2,3,5,6 or 7, it is characterised in that: reciprocal
The frequency of cutting knife is 10-600 beat/min, and pressure roller rotating speed is adjustable according to the requirement of waste silk shearing length, it is ensured that the broken segment length of waste silk
1-10cm。
9. as claimed in claim 1 containing washing waste textile recovery energy saving technique, it is characterised in that: described cutting compacting is
Refer to broken section of High Rotation Speed on the cutterhead of cutting compacting machine, it is achieved compacting process.
10. as claimed in claim 9 containing washing waste textile recovery energy saving technique, it is characterised in that: described cutterhead rotating speed control
System is in the range of 100-600rmp, and in compacting process, compaction is controlled by cutterhead rotating speed, the material in current feedback compacting machine
Highly, control between 250-300A containing washing waste textile recovery；Temperature of charge >=100 DEG C in compacting process.
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| CN112899796A (en) * | 2021-01-11 | 2021-06-04 | 平顶山神马帘子布发展有限公司 | Preparation method of high-strength regenerated nylon 66 fiber |
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