CN111304763B - Low-melting-point preparation system and preparation method of super-soft renewable polyester staple fibers - Google Patents
Low-melting-point preparation system and preparation method of super-soft renewable polyester staple fibers Download PDFInfo
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- CN111304763B CN111304763B CN202010226708.4A CN202010226708A CN111304763B CN 111304763 B CN111304763 B CN 111304763B CN 202010226708 A CN202010226708 A CN 202010226708A CN 111304763 B CN111304763 B CN 111304763B
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- 229920000728 polyester Polymers 0.000 title claims abstract description 100
- 239000000835 fiber Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000004061 bleaching Methods 0.000 claims description 78
- 239000002351 wastewater Substances 0.000 claims description 64
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 61
- 239000002699 waste material Substances 0.000 claims description 50
- 239000006260 foam Substances 0.000 claims description 44
- 230000007246 mechanism Effects 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 34
- 238000007667 floating Methods 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 22
- 238000005485 electric heating Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 238000009987 spinning Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 238000007380 fibre production Methods 0.000 claims description 2
- 238000009474 hot melt extrusion Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920004933 Terylene® Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- HGINCPLSRVDWNT-UHFFFAOYSA-N acrylaldehyde Natural products C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- -1 coatings Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses a low-melting-point preparation system and a preparation method of super-soft renewable polyester staple fibers, which relate to the technical field of polyester fiber preparation.
Description
Technical Field
The invention relates to the technical field of polyester fiber preparation, in particular to a low-melting-point preparation system and a preparation method of super-soft renewable polyester staple fibers.
Background
The polyester is a raw material for manufacturing polyester fibers, coatings, films and engineering plastics, and is a linear polymer polycondensate prepared by polycondensation reaction of saturated dibasic acid and dihydric alcohol. The variety of such polycondensates varies depending on the raw materials or intermediates used, and thus the variety is numerous and numerous. However, all kinds have a common feature that the links of the macromolecules are linked by ester groups "-COO-", so that the polycondensates are generally called polyesters. The fiber prepared based on polyester is called terylene, is one of three large synthetic fibers (terylene, chinlon and acrylon) and is the most main synthetic fiber. Staple chemical fiber (Staple) products are cut into lengths of several centimeters to tens of centimeters, and such lengths of fiber are known as Staple fibers.
Polyester-based waste refers to various products made of polyester materials, such as: packaging bottles, packaging cans and the like, the polyester products are changed into waste materials after being unusable, and the waste materials are directly discarded in the environment to damage the environment, so that waste materials can be changed into valuable materials in order to effectively treat and recycle the part of the polyester waste materials, the recycling of the polyester waste materials is mainly embodied in the aspect of preparation and treatment of polyester fibers, and the protection of the environment is improved.
At present, a common treatment process for preparing polyester fibers from polyester waste materials generally sequentially comprises the steps of crushing, cleaning, drying, hot-melt extrusion and spinning to finally form reusable polyester fibers, and in the steps, the process of bleaching the polyester waste materials is absent, because the color of the recycled polyester waste materials is different, and if the recycled polyester waste materials are not subjected to rinsing treatment, the polyester fibers produced subsequently are influenced, therefore, a low-melting-point preparation system of the super-soft renewable polyester staple fibers and a preparation method thereof are proposed by a person skilled in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-melting-point preparation system and a preparation method of super-soft renewable polyester staple fibers, which solve the problem that the polyester waste lacks bleaching treatment to the polyester waste in the process of preparing the polyester fibers, and the color of the recycled polyester waste is different, so that the polyester fibers produced subsequently are influenced if the polyester waste is not rinsed.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a super gentle renewable polyester staple fiber's low melting point preparation system, includes rubbing crusher unit, cleaning machine group, drying unit, screw extruder unit and spinning machine group, rubbing crusher unit, cleaning machine group, drying unit, screw extruder unit and spinning machine group distribute in the different regions in the workshop to according to polyester staple fiber's production order, process polyester staple fiber's semi-manufactured goods in proper order, still include according to polyester staple fiber production order, set up the bleaching unit between cleaning machine group and drying unit.
The bleaching unit comprises a rinsing mechanism, a floating foam collecting mechanism and a wastewater collecting and treating mechanism, wherein the floating foam collecting mechanism is fixedly arranged at the top of the inner side wall of the rinsing mechanism, and the liquid inlet end of the wastewater collecting and treating mechanism is connected with the liquid outlet of the rinsing mechanism in series.
The utility model provides a bleaching mechanism, including the bleaching case that the top is open form, the inside bottom fixed mounting of bleaching case has a plurality of electrical heating boards, the inside bottom fixed mounting of bleaching case has a plurality of hydrogen peroxide delivery pipes, a plurality of groups electrical heating board and a plurality of hydrogen peroxide delivery pipes are alternately distributed in the inside of electrical heating board, the outside of a plurality of hydrogen peroxide delivery pipes just is located the inside district fixed mounting of bleaching case has a plurality of shower nozzle, a side wall fixed mounting of bleaching incasement portion has temperature sensor, the outer wall of bleaching case opposite side is fixed mounting respectively has controller and temperature display.
Preferably, a floating foam outlet with a polygonal structure is formed in the top of the rear side surface of the bleaching box, and the formed height of the floating foam outlet is matched with the height of the normal hydrogen peroxide storage inside the bleaching box.
Preferably, the water inlet ends and the water outlet ends of the hydrogen peroxide conveying pipes extend to the outside of the bleaching box, the water inlet ends of the hydrogen peroxide conveying pipes are connected with a liquid inlet control valve in series, and the water outlet ends of the hydrogen peroxide conveying pipes are of sealing structures.
Preferably, the electric heating plate, the temperature sensor, the controller and the temperature display are all in bidirectional electric connection with an external power supply, a signal output end of the temperature sensor is electrically connected with a signal input end of the controller, and a control end of the controller is electrically connected with the electric heating plate and an input end of the temperature display respectively.
Preferably, the floating foam collecting mechanism comprises a runway A and a runway B which are respectively and symmetrically and fixedly arranged on two sides of the inner wall of the bleaching box, a foam collecting plate is connected between the runway A and the runway B in a sliding manner, two groups of electric hydraulic rods are movably connected to the surfaces, adjacent to the rear side surface of the bleaching box, of the foam collecting plate in a plane-symmetrical manner, the electric hydraulic rods are connected with the foam collecting plate through a rotating shaft, and non-telescopic ends of the two groups of electric hydraulic rods are installed on the rear side surface of the bleaching box in a penetrating manner.
Preferably, both ends of the spray collecting plate correspond respectively and form sliding type connection structure with the floating spray outlet and the runway B through adjusting structures, the adjusting structures include connecting rods which are connected with the runway A and the runway B in a sliding mode respectively, one end of each connecting rod, deviating from the runway A, is fixedly connected with an adjusting frame, both ends of the spray collecting plate are connected with inner thread cylinders in a penetrating mode, an adjusting bolt is arranged in the adjusting frame in a penetrating mode, the bottom end of the adjusting bolt penetrates through the inner thread cylinders, and a rotating connection structure is formed between the bottom ends of the adjusting bolt and the inner thread cylinders through bearings.
Preferably, the waste water collecting and treating mechanism comprises a waste water collecting tank, a liquid inlet at the top of the waste water collecting tank is connected with a waste water conveying main pipe in series, a plurality of liquid inlets of the waste water conveying main pipe are arranged, each liquid inlet is correspondingly connected with a waste water collecting branch pipe in series, and the liquid inlet of the waste water collecting branch pipe is connected with a liquid outlet of the rinsing mechanism in series and is provided with a liquid outlet control valve.
Preferably, an access board is fixedly arranged on one side end surface of the wastewater collection box, a plurality of groups of sliding grooves are fixedly arranged in the wastewater collection box, and each group of sliding grooves is correspondingly and slidably connected with a filter screen.
Preferably, the bottom of the rear end face of the wastewater collection box is communicated with a wastewater discharge pipe, and the filtering pore diameters of a plurality of layers of filter screens are gradually reduced from top to bottom.
Preferably, the preparation method of the low-melting-point preparation system of the super-soft renewable polyester staple fiber comprises the following steps:
s1, crushing: adding the sorted polyester waste into a pulverizer set for pulverization treatment to obtain sheet-shaped polyester waste;
s2, cleaning: putting the flaky polyester waste obtained in the step S1 into a cleaning unit, and cleaning the waste by using flowing clean water to remove surface stains and obtain clean polyester flaky waste;
s3, bleaching: transferring the clean polyester sheet waste obtained in the step S2 into a bleaching unit, and bleaching the polyester waste with different colors to obtain white polyester sheet waste;
s4, drying: adding the white polyester waste obtained in the step S3 into a dryer unit, and removing surface moisture to obtain dried polyester sheet waste;
s5, heat capacity extrusion: adding the dried polyester sheet waste obtained in the step S4 into a screw extruder unit, extruding to obtain a polyester extrusion material in a molten state, and standing and cooling to room temperature;
s6, spinning: extruding the molten polyester obtained in the step S5, obtaining the filiform polyester staple fiber by using a spinning machine set, and packaging the filiform polyester staple fiber.
Advantageous effects
The invention provides a low-melting-point preparation system and a preparation method of an ultra-soft renewable polyester staple fiber. Compared with the prior art, the method has the following beneficial effects:
1. according to the low-melting-point preparation system and the preparation method of the super-soft renewable polyester staple fiber, in the process of preparing the polyester staple fiber from the existing polyester waste, the bleaching treatment of the polyester waste is additionally carried out, wherein a bleaching mechanism in a bleaching unit comprises a bleaching box with an open top, a plurality of electric heating plates are fixedly arranged at the bottom end inside the bleaching box, a plurality of hydrogen peroxide conveying pipes are fixedly arranged at the bottom end inside the bleaching box, a plurality of groups of electric heating plates and a plurality of hydrogen peroxide conveying pipes are alternately distributed inside the electric heating plates, a plurality of spray heads are fixedly arranged at the outer parts of the plurality of hydrogen peroxide conveying pipes and at the inner parts of the bleaching box, a temperature sensor is fixedly arranged at one side wall inside the bleaching box, and a controller and a temperature display are fixedly arranged on the outer wall of the other side of the bleaching box.
2. The floating foam collecting mechanism in the bleaching unit comprises a runway A and a runway B which are respectively and symmetrically fixedly arranged on two sides of the inner wall of a bleaching box, wherein an inner silk tube is fixedly connected at two ends of the runway A and the runway B in a penetrating manner, an adjusting bolt is arranged in the inner part of the adjusting frame in a penetrating manner, the bottom ends of the adjusting bolt penetrate through the inner silk tube and form a rotating connection structure with the inner bottom ends of the adjusting frame through a bearing, the non-telescopic ends of the two groups of the electric hydraulic rods penetrate through the rear side surface of the bleaching box, two ends of the floating foam collecting plate respectively correspond to a floating foam outlet and the runway B, a sliding connection structure is formed between the two ends of the floating foam collecting plate and the runway B through an adjusting structure, the adjusting structure comprises connecting rods which are respectively connected with one ends of the runway A and the runway B in a penetrating manner, the two ends of the foam collecting plate are respectively connected with the inner silk tube in a penetrating manner, and the adjusting bolt is arranged in the inner part of the adjusting frame in a penetrating manner, and the bottom ends of the adjusting bolt penetrate through the inner silk tube and form a rotating connection structure with the inner silk tube through a bearing.
3. The low-melting-point preparation system of the super-soft renewable polyester staple fibers and the preparation method thereof are characterized in that a waste water collecting and treating mechanism in a bleaching unit comprises a waste water collecting box, a waste water conveying main pipe is connected in series to a liquid inlet at the top of the waste water collecting box, a plurality of waste water conveying main pipes are arranged at the liquid inlet of the waste water conveying main pipe, each liquid inlet is correspondingly connected with a waste water collecting branch pipe in series, a liquid outlet control valve is arranged, a plurality of groups of sliding grooves are fixedly arranged in the waste water collecting box, each group of sliding grooves are correspondingly and slidably connected with a filter screen, when the whole rinsing treatment process is finished in actual use, waste water after use is discharged in a box body to be collected, and a plurality of layers of filter screens with different filter apertures are arranged in the box body, impurities contained in the waste water can be filtered, and the filter screens are detachable and can be continuously used after being cleaned for a plurality of times, so that the practicability is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of the bleaching unit of the present invention;
FIG. 3 is a schematic diagram of a rinse mechanism of the present invention;
FIG. 4 is a schematic view of the mounting structure of the spray head of the present invention;
FIG. 5 is a schematic block diagram of the temperature constant control of the present invention;
FIG. 6 is a top view of the froth collecting mechanism of the present invention;
FIG. 7 is a cross-sectional view taken along section A-A of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic diagram of a wastewater collection and treatment mechanism according to the present invention;
FIG. 9 is a schematic view showing the internal structure of the wastewater collection tank of the present invention;
FIG. 10 is a schematic block diagram of a process for preparing the present invention.
In the figure: 1. a pulverizer set; 2. a cleaning unit; 3. a bleaching unit; 31. a rinsing mechanism; 311. a bleaching box; 312. a froth discharge port; 313. an electric heating plate; 314. a hydrogen peroxide delivery pipe; 315. a spray head; 316. a liquid inlet control valve; 317. a temperature sensor; 318. a controller; 319. a temperature display; 32. a floating foam collection mechanism; 321. runway A; 322. runway B; 323. a connecting rod; 324. an adjusting frame; 325. a spray collection plate; 326. an electric hydraulic rod; 327. an inner wire cylinder; 328. an adjusting bolt; 329. a bearing; 3210. a rotating shaft; 33. a waste water collecting and treating mechanism; 331. a waste water collection tank; 332. a waste water conveying main pipe; 333. the waste water is collected and branched; 334. a liquid outlet control valve; 335. an access panel; 336. a waste water discharge pipe; 337. a chute; 338. a filter screen; 4. a dryer group; 5. a screw extruder set; 6. and a spinning machine set.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a super gentle renewable polyester staple's low melting point preparation system, includes rubbing crusher unit 1, cleaning unit 2, drying unit 4, screw extruder unit 5 and spinning unit 6, rubbing crusher unit 1, cleaning unit 2, drying unit 4, screw extruder unit 5 and spinning unit 6 distribute in the different regions in the workshop to according to polyester staple's production order, process polyester staple's semi-manufactured goods in proper order, still include according to polyester staple production order, set up the bleaching unit 3 between cleaning unit 2 and drying unit 4.
Referring to fig. 2, the bleaching unit 3 includes a rinsing mechanism 31, a froth collecting mechanism 32 and a waste water collecting and treating mechanism 33, the froth collecting mechanism 32 is fixedly installed at the top of the inner sidewall of the rinsing mechanism 31, and the liquid inlet end of the waste water collecting and treating mechanism 33 is connected with the liquid outlet of the rinsing mechanism 31 in series.
Referring to fig. 3-4, the rinsing mechanism 31 includes a bleaching box 311 with an open top, a plurality of electric heating plates 313 are fixedly mounted at the bottom end of the inside of the bleaching box 311, a plurality of hydrogen peroxide conveying pipes 314 are fixedly mounted at the bottom end of the inside of the bleaching box 311, a plurality of groups of electric heating plates 313 and a plurality of hydrogen peroxide conveying pipes 314 are alternately distributed in the inside of the electric heating plates 313, a plurality of spray heads 315 are fixedly mounted on the outside of the plurality of hydrogen peroxide conveying pipes 314 and on a section inside the bleaching box 311, a temperature sensor 317 is fixedly mounted on one side wall inside the bleaching box 311, a controller 318 and a temperature display 319 are fixedly mounted on the outer wall of the other side of the bleaching box 311 respectively, a foam outlet 312 with a polygonal structure is formed at the top of the rear side of the bleaching box 311, the opening height of the foam outlet 312 is matched with the height of the inside of the bleaching box 311 for normally storing hydrogen peroxide, the water inlet ends and the water outlet ends of the plurality of the hydrogen peroxide conveying pipes 314 are all extended to the outside of the bleaching box 311, the water inlet ends of the plurality of the hydrogen peroxide conveying pipes 314 are all connected in series with a liquid inlet control valve 316, and the water outlet ends of the hydrogen peroxide conveying pipes 314 are all in a sealed structure.
Referring to fig. 5, the electric heating plate 313, the temperature sensor 317, the controller 318 and the temperature display 319 are all electrically connected to an external power source in two directions, the signal output end of the temperature sensor 317 is electrically connected to the signal input end of the controller 318, and the control end of the controller 318 is electrically connected to the input ends of the electric heating plate 313 and the temperature display 319, respectively.
Referring to fig. 6-7, the floating foam collecting mechanism 32 includes a runway a321 and a runway B322 which are respectively and symmetrically and fixedly installed on two sides of the inner wall of the bleaching box 311, a foam collecting plate 325 is connected between the runway a321 and the runway B322 in a sliding manner, two groups of electric hydraulic rods 326 are movably connected between the foam collecting plate 325 and the rear side of the bleaching box 311 in a plane-symmetrical manner, the electric hydraulic rods 326 are connected with the foam collecting plate 325 through a rotating shaft 3210, non-telescopic ends of the two groups of electric hydraulic rods 326 are installed on the rear side of the bleaching box 311 in a penetrating manner, two ends of the foam collecting plate 325 are respectively and correspondingly connected with the floating foam outlet 312 and the runway B322 in a sliding manner through adjusting structures, each adjusting structure comprises a connecting rod 323 which is respectively and slidably connected with the runway a connecting rod 323, one end of the connecting rod 323, deviating from the runway a321, of each end of the connecting rod 323 is fixedly connected with an adjusting frame 324, two ends of the foam collecting plate 325 are respectively and are connected with an inner wire cylinder 327 in a penetrating manner, the inner part of the adjusting frame 324 is penetrated by an adjusting bolt 328, and the bottom ends of the adjusting bolt 328 penetrates the inner part 327 of the inner wire cylinder 324, and the inner part of the adjusting frame 322 is connected with the inner part of the adjusting frame through a rotating shaft 327, and the inner bottom end of the adjusting frame 327 through a rotating structure.
Referring to fig. 8-9, the wastewater collection and treatment mechanism 33 includes a wastewater collection tank 331, a wastewater conveying main pipe 332 is connected in series with a liquid inlet at the top of the wastewater collection tank 331, a plurality of liquid inlets of the wastewater conveying main pipe 332 are provided, each liquid inlet is correspondingly connected in series with a wastewater collection branch pipe 333, the liquid inlet of the wastewater collection branch pipe 333 is connected in series with a liquid outlet of the rinsing mechanism 31, a liquid outlet control valve 334 is provided, an access plate 335 is fixedly mounted on one side end surface of the wastewater collection tank 331, a plurality of groups of sliding grooves 337 are fixedly mounted in the wastewater collection tank 331, each group of sliding grooves 337 is correspondingly and slidably connected with a filter screen 338, a wastewater discharge pipe 336 is communicated with the bottom of the rear side end surface of the wastewater collection tank 331, and the filtering aperture of the plurality of layers of filter screens 338 is gradually reduced from top to bottom.
Referring to fig. 10, the preparation method of the system for preparing the super-soft renewable polyester staple fiber with low melting point comprises the following steps:
s1, crushing: adding the sorted polyester waste into a pulverizer set 1, and pulverizing to obtain sheet polyester waste;
s2, cleaning: putting the flaky polyester waste obtained in the step S1 into a cleaning unit 2, and cleaning the waste by using flowing clean water to remove surface stains and obtain clean polyester flaky waste;
s3, bleaching: transferring the clean polyester sheet waste obtained in the step S2 into a bleaching unit 3, and bleaching the polyester waste with different colors to obtain white polyester sheet waste;
s4, drying: adding the white polyester waste obtained in the step S3 into a dryer unit 4, and removing surface moisture to obtain dry polyester sheet waste;
s5, heat capacity extrusion: adding the dried polyester sheet waste obtained in the step S4 into a screw extruder set 5, extruding to obtain a polyester extrusion material in a molten state, and standing and cooling to room temperature;
s6, spinning: extruding the molten polyester obtained in the step S5, obtaining a filiform polyester staple fiber by using a spinning machine set 6, and packaging the filiform polyester staple fiber.
In this embodiment, since the pulverizer set 1, the cleaning set 2, the dryer set 4, the screw extruder set 5 and the spinning set 6 are all devices commonly used in the art for preparing polyester fibers, the working principle parts thereof will not be described in detail, and the working principle of the bleaching set 3 is described in detail as follows:
the sheet-shaped polyester waste material cleaned by the cleaning unit 2 is added into the bleaching box 311, then, the hydrogen peroxide solution is added into the bleaching box 311 by using a hydrogen peroxide conveying pipe 314 and a spray head 315 through an external hydrogen peroxide solution supply pump (not shown), when the hydrogen peroxide solution is added, the liquid level of the hydrogen peroxide solution is ensured to be slightly lower than the height of a floating foam discharge port 312, an electric heating plate 313 is started to heat the hydrogen peroxide solution, the temperature can be preset on a controller 318, the preset temperature is assumed to be 90 ℃, the temperature of the hydrogen peroxide solution continuously rises along with the continuous heating of the electric heating plate 313, in the process, a temperature signal is transmitted to the controller 318 at all times by a temperature sensor 317, the temperature signal is displayed by a temperature display 319, the signal is immediately transmitted to the controller 318 after the temperature monitored by the temperature sensor 317 reaches 90 ℃, the controller 318 actively controls the electric heating plate 313 to stop working, and the controller 318 can also actively control the electric heating plate 313 to continuously work, so that the purpose of keeping the constant temperature of the hydrogen peroxide solution is achieved;
along with the progress of bleaching treatment, the surface of the hydrogen peroxide solution generates floating foam, when the floating foam needs to be cleaned, the foam collecting plate 325 is positioned on the front side surface (the position opposite to the floating foam outlet 312) of the bleaching box 311, the electric hydraulic rod 326 is started to shorten the electric hydraulic rod 326, the foam collecting plate 325 is driven to move towards the direction of the floating foam outlet 312 under the action of the runway A321 and the runway B322, in the moving process, the floating foam on the surface of the hydrogen peroxide solution moves along with the foam collecting plate 325 until being discharged from the floating foam outlet 312, then, the electric hydraulic rod 326 is controlled to stretch to drive the foam collecting plate 325 to immediately recover to the initial position for preparing for the next foam collection, and repeated operation is carried out to inaudibly remove the floating foam so as to achieve the optimal bleaching effect;
after the whole bleaching process is finished, the generated waste water is discharged into the waste water collecting box 331 through the waste water collecting branch pipe 333 and the waste water conveying main pipe 332 and is filtered by the plurality of layers of filter screens 338, when the waste water amount in the waste water collecting box 331 reaches a state needing to be discharged, the waste water is discharged through the waste water discharging pipe 336, the filter screens 338 are disassembled and cleaned, when the filter screens 338 are disassembled, the overhaul plate 335 is disassembled, the filter screens 338 are pulled out under the action of the sliding grooves 337, and after the filter screens 338 are cleaned, the filter screens are installed in the same way, and a sealing effect is achieved between the overhaul plate 335 and the waste water collecting box 331 to prevent liquid leakage.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a super gentle renewable polyester staple fiber's low melting point preparation system, includes rubbing crusher unit (1), cleaning unit (2), drying unit (4), screw extruder unit (5) and spinning unit (6), rubbing crusher unit (1), cleaning unit (2), drying unit (4), screw extruder unit (5) and spinning unit (6) distribute in different regions in the workshop to according to polyester staple fiber's production order, process polyester staple fiber's semi-manufactured goods in proper order, its characterized in that still includes according to polyester staple fiber production order, bleaching unit (3) of setting up between cleaning unit (2) and drying unit (4);
the bleaching unit (3) comprises a rinsing mechanism (31), a floating foam collecting mechanism (32) and a wastewater collecting and treating mechanism (33), wherein the floating foam collecting mechanism (32) is fixedly arranged at the top of the inner side wall of the rinsing mechanism (31), and the liquid inlet end of the wastewater collecting and treating mechanism (33) is connected with the liquid outlet of the rinsing mechanism (31) in series;
the rinsing mechanism (31) comprises a bleaching box (311) with an open top, a plurality of electric heating plates (313) are fixedly arranged at the bottom end of the inside of the bleaching box (311), a plurality of hydrogen peroxide conveying pipes (314) are fixedly arranged at the bottom end of the inside of the bleaching box (311), the electric heating plates (313) and the hydrogen peroxide conveying pipes (314) are alternately distributed in the inside of the bleaching box (311), a plurality of spray heads (315) are fixedly arranged at the outside of the hydrogen peroxide conveying pipes (314) and at the section inside the bleaching box (311), a temperature sensor (317) is fixedly arranged at one side wall inside the bleaching box (311), and a controller (318) and a temperature display (319) are respectively fixedly arranged on the outer wall of the other side of the bleaching box (311).
The top of the rear side of the bleaching box (311) is provided with a floating foam outlet (312) with a polygonal structure, the opening height of the floating foam outlet (312) is matched with the height of the inside of the bleaching box (311) for normally storing hydrogen peroxide, the water inlet ends and the water outlet ends of the hydrogen peroxide conveying pipes (314) are all extended to the outside of the bleaching box (311), the water inlet ends of the hydrogen peroxide conveying pipes (314) are all connected with a liquid inlet control valve (316) in series, the water outlet ends of the hydrogen peroxide conveying pipes (314) are all of a sealing structure, the electric heating plate (313), the temperature sensor (317), the controller (318) and the temperature display (319) are all in bidirectional electric connection with an external power supply, the signal output end of the temperature sensor (317) is electrically connected with the signal input end of the controller (318), and the control end of the controller (318) is electrically connected with the input ends of the electric heating plate (313) and the temperature display (319) respectively;
the waste water collection treatment mechanism (33) comprises a waste water collection box (331), a waste water conveying main pipe (332) is connected in series with a liquid inlet at the top of the waste water collection box (331), a plurality of waste water collecting branch pipes (333) are correspondingly connected in series with each liquid inlet, a liquid inlet of each waste water collecting branch pipe (333) is connected in series with a liquid outlet of a rinsing mechanism (31) and is provided with a liquid outlet control valve (334), an overhaul plate (335) is fixedly arranged on one side end face of the waste water collection box (331), a plurality of groups of sliding grooves (337) are fixedly arranged in the waste water collection box (331), each group of sliding grooves (337) are correspondingly and slidably connected with a filter screen (338), a waste water discharge pipe (336) is arranged at the bottom of the end face of the rear side of the waste water collection box (331), and the filtering aperture of each layer of filter screen (338) is gradually reduced from top to bottom.
2. The system for preparing the ultra-soft renewable polyester staple fiber with the low melting point according to claim 1, wherein the floating foam collecting mechanism (32) comprises a runway A (321) and a runway B (322) which are symmetrically and fixedly installed on two sides of the inner wall of the bleaching box (311), a foam collecting plate (325) is connected between the runway A (321) and the runway B (322) in a sliding mode, two groups of electric hydraulic rods (326) are symmetrically and movably connected on the surface, adjacent to the rear side surface of the bleaching box (311), of the foam collecting plate (325), the electric hydraulic rods (326) are connected with the foam collecting plate (325) through a rotating shaft (3210), and non-telescopic ends of the two groups of electric hydraulic rods (326) are installed on the rear side surface of the bleaching box (311) in a penetrating mode.
3. The low-melting-point preparation system of the ultra-soft renewable polyester staple fiber according to claim 2, wherein two ends of the spray collecting plate (325) respectively correspond to the floating spray outlet (312) and the runway B (322) and form a sliding connection structure through an adjusting structure, the adjusting structure comprises a connecting rod (323) respectively connected with the runway A (321) and the runway B (322) in a sliding mode, one end, deviating from the runway A (321), of the connecting rod (323) is fixedly connected with an adjusting frame (324), two ends of the spray collecting plate (325) are respectively connected with an inner wire cylinder (327) in a penetrating mode, an adjusting bolt (328) is arranged in the adjusting frame (324) in a penetrating mode, and a rotating connection structure is formed between the bottom end of the adjusting bolt (328) and the inner bottom end of the adjusting frame (324) through a bearing (329).
4. A method for preparing a system for preparing a low melting point of a super-soft and renewable polyester staple fiber, which is characterized in that the method is implemented by using the system for preparing a low melting point of a super-soft and renewable polyester staple fiber according to any one of claims 1 to 3, and the method for preparing the system for preparing a low melting point of a super-soft and renewable polyester staple fiber comprises the following steps:
s1, crushing: adding the sorted polyester waste into a pulverizer set (1) for pulverization treatment to obtain sheet-shaped polyester waste;
s2, cleaning: putting the flaky polyester waste obtained in the step S1 into a cleaning unit (2), and cleaning the waste by using flowing clean water to remove surface stains and obtain clean polyester flaky waste;
s3, bleaching: transferring the clean polyester sheet waste obtained in the step S2 into a bleaching unit (3), and bleaching the polyester waste with different colors to obtain white polyester sheet waste;
s4, drying: adding the white polyester waste obtained in the step S3 into a dryer unit (4) to remove surface moisture and obtain dry polyester sheet waste;
s5, hot melt extrusion: adding the dried polyester sheet waste obtained in the step S4 into a screw extruder set (5), extruding to obtain a polyester extrusion material in a molten state, and standing and cooling to room temperature;
s6, spinning: extruding the molten polyester obtained in the step S5, obtaining a filiform polyester staple fiber by using a spinning machine set (6), and packaging the filiform polyester staple fiber.
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