CN105690702B - Polylactic acid slice adds titanium dioxide delustring spinning production system - Google Patents
Polylactic acid slice adds titanium dioxide delustring spinning production system Download PDFInfo
- Publication number
- CN105690702B CN105690702B CN201610233619.6A CN201610233619A CN105690702B CN 105690702 B CN105690702 B CN 105690702B CN 201610233619 A CN201610233619 A CN 201610233619A CN 105690702 B CN105690702 B CN 105690702B
- Authority
- CN
- China
- Prior art keywords
- guide shell
- melt
- spinning
- dynamic
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- 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
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
-
- 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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/04—Melting filament-forming substances
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
-
- 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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Polyesters Or Polycarbonates (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Polylactic acid slice adds titanium dioxide delustring spinning production system; including aggregation framework, agitator tank, first poly- tank, poly- tank, pelleter, cooling bay, vulcanization be crystallizing bed eventually, drying tower, the first feed bin, the second feed bin, compressed air system, spinning screw extruder and spinning manifold; stirring pot bottom is connected by the first conveying pipeline with first poly- tank top, and the first conveying pipeline is provided with PLA pre-polymerization mixing device；The discharging opening of spinning screw extruder is connected by melt pipe with spinning manifold, and melt pipe is provided with sound integrated pipeline formula mixing device.Present invention ensure that the melt in prepolymerization pipe flows downward under constant speed state, and make melt temperature in prepolymerization pipe also basically identical, the present invention directly sets some groups of batch mixing units on the 3rd conveying pipeline, eliminate and mixing system is installed on conveyance conduit, cost is saved, reach the purpose of uniform batch mixing, conveying and batch mixing efficiency greatly improve.
Description
Technical field
The invention belongs to poly lactic acid polymerized technical field, more particularly to a kind of addition titanium dioxide delustring of polylactic acid slice to spin
Silk production system.
Background technology
Poly lactic acid polymerized process includes pre-polymerization and gathered eventually.The melt for needing to polymerize is first had to by pre-polymerization, the equipment of pre-polymerization
It is the tank body of a vertical type cylinder shape, prepolymerization pipe is vertically provided with the top of tank body.Need prepolymerized melt from
The upper end of prepolymerization pipe quantitatively enters in prepolymerization pipe, by self gravitation and steadily flows down to from the top down in tank body.By
In the friction factor of melt and prepolymerization tube wall, the melt of prepolymerization tube hub flow downward speed than prepolymerization tube wall at
The downward flowing velocity of melt it is fast, and the temperature at prepolymerization tube wall and the temperature of prepolymerization tube hub also have difference
Not.And preferably situation is；1st, melt flows downward under constant speed state；2nd, it is every when melt flows downward in prepolymerization pipe
The tube wall of individual aspect and the solution temperature of prepolymerization tube hub be desirably also；3rd, due to being used to convey PLA after eventually gathering
Conveyance conduit it is longer, close to tube wall high polymer molten viscosity it is especially big, polylactic acid melt is in course of conveying because of melt
Molecular weight of high polymer wider distribution caused by flow velocity is uneven（It is uneven）Problem, impurity can not effectively filter out, so as to shadow
Sound arrives spinning quality.To reach this purpose, need to assemble array batch mixing preheater in prepolymerization pipe, to meet wanting for polymerization technique
Ask.
The content of the invention
The present invention is in order to solve weak point of the prior art, there is provided it is a kind of can be by prepolymerization inside pipe wall and center
Melt keeps basic constant speed to flow downward and prepolymerization inside pipe wall can be swapped with the melt at center and mixes keeping temperature
Unanimously, the polylactic acid slice being well mixed in poly- rear course of conveying eventually adds titanium dioxide delustring spinning production system.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：Polylactic acid slice adds titanium dioxide delustring
Spinning production system, including aggregation framework, pelleter, cooling bay, the crystallizing bed, drying tower of vulcanization, the first feed bin, the second feed bin,
Compressed air system, spinning screw extruder and spinning manifold, agitator tank, first poly- tank are sequentially provided with from top to bottom in aggregation framework
With poly- tank eventually, stirring pot bottom is connected by the first conveying pipeline with first poly- tank top, and the first conveying pipeline is provided with PLA pre-polymerization
Mixing device, the first autocontrol valve and the first measuring pump, first poly- pot bottom are connected by the second conveying pipeline with poly- tank top eventually,
Second conveying pipeline is provided with the second autocontrol valve and the second measuring pump, and poly- pot bottom is connected with the 3rd conveying pipeline eventually, and the 3rd is defeated
Expects pipe is provided with the 3rd measuring pump, and the discharging opening of the 3rd conveying pipeline is connected with the polylactic acid melt extrusion cavities above cooling bay
Plate, cooling water is loaded with cooling bay, the working end of pelleter is located in cooling bay, and the discharge end of pelleter is located at outside cooling bay
And be connected by conveyer with vulcanizing crystallizing bed feed end, the charging aperture for vulcanizing crystallizing bed discharge end and drying tower connects,
The discharging opening of drying tower is connected with the charging aperture of the second feed bin；
The discharging opening of second feed bin is connected by main tremie pipe with the charging aperture of spinning screw extruder, compressed air system
Air outlet and main tremie pipe between be provided tiltedly with airduct, airduct and the position of compressed air system connection end are higher than airduct and master
The position of tremie pipe connection end, airduct are provided with the adjusting air valve of neighbouring compressed air system, and the discharging opening of the first feed bin passes through
Mix tube is connected with airduct, and mix tube is provided with powder meter, and the discharging opening of spinning screw extruder passes through melt pipe
Road is connected with spinning manifold, and melt pipe is provided with sound integrated pipeline formula mixing device, and spinning measuring is provided with spinning manifold
Pump and filament spinning component, the discharging opening of melt pipe extend into spinning manifold and are connected with the charging aperture of spinning pump, spinning
The outlet of measuring pump and the import of filament spinning component connect；
PLA pre-polymerization mixing device includes the prepolymerization pipe that is arranged in vertical, in prepolymerization pipe from top to bottom at least
Provided with two batch mixing preheaters, all equal structures of batch mixing preheater are identical；
Each batch mixing preheater includes the first upper conical guide shell, the second upper conical water conservancy diversion with same center line
Cylinder, the first inferior pyramidal guide shell, the second inferior pyramidal guide shell, upper shunting cone cylinder and lower shunting cone cylinder；
First upper conical guide shell and the first inferior pyramidal guide shell are upper coarse and lower fine and upper and lower permeable structures, the first epicone
Shape guide shell bottom diameter is more than the second upper conical guide shell bottom diameter, the second upper conical guide shell and the second inferior pyramidal water conservancy diversion
Cylinder is up-thin-low-thick and upper and lower permeable structures, in the first upper conical guide shell bottom diameter and the second upper conical guide shell upper end
Footpath is equal, and the first inferior pyramidal guide shell bottom diameter is equal with the second inferior pyramidal guide shell upper-end inner diameter, the first upper conical water conservancy diversion
Cylinder upper end outer, the second upper conical guide shell lower end outer, the first inferior pyramidal guide shell upper end edge and the second inferior pyramidal water conservancy diversion
Cylinder lower end edge is fixedly connected with prepolymerization inside pipe wall, the first upper conical guide shell lower end edge and the second upper conical guide shell
Upper end edge is fixedly connected, and the first upper conical guide shell lower end edge is fixedly connected with the second upper conical guide shell upper end edge,
First inferior pyramidal guide shell lower end edge is fixedly connected with the second inferior pyramidal guide shell upper end edge；
Upper shunting cone cylinder is the structure that top sharply blocks, bottom is open, and lower shunting cone cylinder sharply blocks for bottom, top
Open structure, upper shunting cone cylinder bottom diameter are equal to lower shunting cone cylinder upper-end inner diameter, and upper shunting cone cylinder bottom diameter is less than pre-
It polymerize bore, upper shunting cone cylinder lower end edge is fixedly connected with lower shunting cone cylinder upper end edge；Upper shunting cone cylinder and lower shunting
Cone cylinder outer wall is fixedly connected by heating agent conduit with prepolymerization inside pipe wall；
The upper end of upper shunting cone cylinder be higher than the first upper conical guide shell upper end edge, under the lower lower end and second for shunting cone cylinder
Conical flow guiding cylinder upper end edge flushes；
Circulation road under formation tube wall melt between upper spreader tube outer surface and the first inferior pyramidal water conservancy diversion tube outer surface, lower point
Circulation road under blend melt is formed between flow cone tube outer surface and the first inferior pyramidal water conservancy diversion tube outer surface；
Upper spreader tube outer surface is provided with central melt flow dividing structure, lower end and the tube wall melt of central melt flow dividing structure
Lower circulation road lower end crosses.
Sound integrated pipeline formula mixing device includes fixed -piping and batch mixing unit, and batch mixing unit includes coaxial setting
Static batch mixing pipeline and dynamic mixture pipeline, the left end of dynamic mixture pipeline are connected with the right-hand member flange of static batch mixing pipeline, are moved
It is provided with dynamic screw dividing plate in state batch mixing pipeline, axially inside direction is separated into the to dynamic screw dividing plate by dynamic mixture pipeline
One semicircle helical duct and the second semicircle helical duct, dynamic screw dividing plate coordinate with dynamic mixture inner-walls of duct gap；It is static
Static ribbon dividing plate is provided with batch mixing pipeline, static batch mixing pipeline is axially inside separated into the 3rd in direction by static ribbon dividing plate
Semicircle helical duct and the 4th semicircle helical duct, static ribbon dividing plate are fixedly connected with static batch mixing inner-walls of duct；
Plane where the both ends of dynamic screw dividing plate and static ribbon dividing plate is each perpendicular in dynamic mixture pipeline
Mandrel line, dynamic screw dividing plate right part center are provided with dynamic cone tank, and dynamic screw dividing plate left part center is provided with dynamic and pushed up
Point, static ribbon dividing plate right part center are provided with static cone tank, and static ribbon dividing plate left part center is top provided with static state, moves
The top left end of state is withstood in static cone tank；
Fixed -piping left end is connected with dynamic mixture pipeline right-hand member flange, is provided with support in fixed -piping, support is provided with
Stationary center, stationary center left end are withstood in dynamic cone tank.
The quantity of batch mixing unit is more than or equal to two groups, and flange connects between two adjacent groups batch mixing unit, one group of batch mixing unit
Static top left end withstand in the dynamic cone tank of one group of adjacent batch mixing unit, one group of batch mixing of fixed -piping and low order end
Unit connects.
The length of static batch mixing pipeline is less than the length of dynamic mixture pipeline.
Central melt flow dividing structure includes shunt cylinder and several isocons, and shunt cylinder and isocon are each provided at point
On flow cone cylinder, shunt cylinder open top, shunt cylinder upper end edge is horizontal, and isocon is wide at the top and narrow at the bottom, all isocon edges of isocon
Upper shunting cone cylinder circumferencial direction is evenly arranged, and isocon upper end connects with shunt cylinder lower end, and shunting infratubal port melts positioned at tube wall
Circulation road lower end and the outside of circulation road upper end intersection under blend melt under body.
Upper shunting cone cylinder is internally formed preheating cavity, the first inferior pyramidal guide shell and the second inferior pyramidal with lower shunting cone cylinder
Hot circulating fluid medium has been passed through in preheating cavity under being internally formed of guide shell, upper preheating cavity and lower preheating cavity；Heating agent conduit
Inner to be connected with upper preheating cavity, heating agent external catheter end is stretched out outside prepolymerization pipe.
Using above-mentioned technical proposal, PLA pre-polymerization mixing device is set to carry out batch mixing warm on the first conveying pipeline
For：Melt flows downward in prepolymerization pipe, and the melt A at prepolymerization tube hub enters shunting along upper shunting cone surface
Cylinder, melt A are flowed to circulation road lower end under tube wall melt and crossed with circulation road upper end under blend melt automatically by isocon again
The outside at place, at the same time, the melt B close to prepolymerization tube wall are entered under tube wall melt by the first upper conical guide shell
In circulation road, flow under tube wall melt and be located at melt A top behind circulation road lower end, be i.e. melt A and melt B enter blend melt
After lower circulation road, melt A is located at lower floor, and melt B is located at upper strata, when melt A and melt B are flowed under blend melt under circulation road
When bringing out mouthful, melt B is located among melt A, i.e., melt A is transformed into by center and continues to flow downward along tube wall, and melt B is by tight
Adjacent tube wall, which is transformed into center, to be continued to flow downward, and during transposition, melt A and melt B are also definitely mixed.
During melt mixed transposition, hot circulating fluid medium is passed through in upper preheating cavity and lower preheating cavity, heat is followed
Ring fluid media (medium) can add thermal medium such as according to technological requirement；Biphenyl Ether, conduction oil etc., are preheated to melt, with side
Just prepolymerization process is controlled.The present invention takes no dead angle design in the junction of all parts.From upper in a piece prepolymerization pipe
Multigroup batch mixing preheater can be installed under.
Sound integrated pipeline formula mixing device is set on melt pipe, had the advantages that：Squeezed in spinning screw
Go out under the discharge pressure effect of machine, the polylactic acid melt after polymerization is entered by fixed -piping, when sticky melt leads under high pressure
When crossing dynamic mixture pipeline, dynamic screw dividing plate starts to rotate under the promotion of melt, on the inwall of dynamic mixture pipeline
The dynamic screw dividing plate that is rotated of viscous melt scrape, diluter among the viscous melt and dynamic mixture pipeline scraped must melt
Body mixes, and pushes ahead into the 3rd semicircle helical duct and the 4th semicircle helical duct in static batch mixing pipeline
Row mixing, enters back into after mixing and above-mentioned mixing process is repeated in dynamic mixture pipeline.Due to the first semicircle helical duct and
Two semicircle helical ducts it is longer and in the axial direction for the hand of spiral set, thus can pressurized melt by when, drive
Dynamic dynamic screw dividing plate rotation；The top form coordinated with cone tank top pressure of rotary material of dynamic screw dividing plate, is not only easy to
Manufacture and assembling, and frictional force is smaller in rotary course, so as to improve the efficiency of dynamic screw dividing plate scraper.Static batch mixing
The length of pipeline is less than the length of dynamic mixture pipeline, most of length of the pipeline of whole conveying PLA all can
The king-sized PLA of the viscosity adhered on tube wall is wiped off, fully improves the uniformity of mixing.
In summary, principle of the invention science, reasonable in design, simple in construction, it is ensured that the melt in prepolymerization pipe is constant
Flowed downward under speed state, and make the tube wall of each aspect and prepolymerization tube hub when melt flows downward in prepolymerization pipe
Solution temperature is also basically identical, so as to meet the requirement of polymerization technique.Some groups of batch mixing units are directly set on melt pipe
, eliminate and mixing system be installed on conveyance conduit, saved cost, reach the purpose of uniform batch mixing, conveying and batch mixing
Efficiency greatly improves.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the invention for having in Fig. 1 one group of batch mixing unit；
Fig. 3 is the dimensional structure diagram of dynamic screw dividing plate in Fig. 2；
Fig. 4 is the dimensional structure diagram of static ribbon dividing plate in Fig. 2；
Fig. 5 is the structural representation of PLA pre-polymerization mixing device in Fig. 1；
Fig. 6 is the top view of the central melt flow dividing structure in Fig. 5.
Embodiment
As shown in figs 1 to 6, polylactic acid slice of the invention addition titanium dioxide delustring spinning production system, including polymerization
Framework 16, pelleter 17, cooling bay 18, vulcanization are crystallizing bed 60, drying tower 61, the first feed bin 62, the second feed bin 63, compressed air
System 64, spinning screw extruder 65 and spinning manifold 66, agitator tank 19, just poly- is sequentially provided with aggregation framework 16 from top to bottom
Tank 20 and eventually poly- tank 21, the bottom of agitator tank 19 is connected by the first conveying pipeline 22 with the just poly- top of tank 20, on the first conveying pipeline 22
Provided with PLA pre-polymerization mixing device 40, the first autocontrol valve 23 and the first measuring pump 24, the first poly- bottom of tank 20 passes through second
Conveying pipeline 25 is connected with the poly- top of tank 21 eventually, and the second conveying pipeline 25 is provided with the second autocontrol valve 26 and the second measuring pump 27,
The poly- bottom of tank 21 is connected with the 3rd conveying pipeline 28 eventually, and the 3rd conveying pipeline 28 is provided with the 3rd measuring pump 29, the 3rd conveying pipeline 28
Discharging opening is connected with the polylactic acid melt extrusion orifice plate 32 above cooling bay 18, is loaded with cooling water in cooling bay 18, cuts
The working end of grain machine 17 is located in cooling bay 18, and the discharge end of pelleter 17 is located at outside cooling bay 18 and by conveyer and vulcanization
Crystallizing bed 60 feed end connection, the discharge end of vulcanization crystallizing bed 60 are connected with the charging aperture of drying tower 61, and drying tower 61 goes out
Material mouth is connected with the charging aperture of the second feed bin 63.
The discharging opening of second feed bin 63 is connected by main tremie pipe 67 with the charging aperture of spinning screw extruder 65, and compression is empty
Airduct 68, airduct 68 and the connection end of compressed air system 64 are provided tiltedly between the air outlet of gas system 64 and main tremie pipe 67
Higher than airduct 68 and the position of the main connection end of tremie pipe 67, airduct 68 is provided with the regulation wind of neighbouring compressed air system 64 for position
Valve 69, the discharging opening of the first feed bin 62 are connected by mix tube 70 with airduct 68, and mix tube 70 is provided with powder meter
71, the discharging opening of spinning screw extruder 65 is connected by melt pipe 72 with spinning manifold 66, and melt pipe 72 is provided with dynamic
Quiet integrated pipeline formula mixing device 31, spinning manifold 66 is interior to be provided with spinning pump 73 and filament spinning component 74, melt pipe 72
Discharging opening extend into spinning manifold 66 and is connected with the charging aperture of spinning pump 73, the outlet and spinning of spinning pump 73
The import connection of component 74.
Sound integrated pipeline formula mixing device 31 includes fixed -piping 1 and batch mixing unit, and batch mixing unit includes coaxial set
Static the batch mixing pipeline 2 and dynamic mixture pipeline 3 put, the right-hand member flange of the left end of dynamic mixture pipeline 3 and static batch mixing pipeline 2
Connection, is provided with dynamic screw dividing plate 4 in dynamic mixture pipeline 3, dynamic screw dividing plate 4 by dynamic mixture pipeline 3 axially inside
Direction is separated into the first semicircle helical duct 5 and the second semicircle helical duct 6, dynamic screw dividing plate 4 with dynamic mixture pipeline 3
Wall gap coordinates；Static ribbon dividing plate 7 is provided with static batch mixing pipeline 2, static ribbon dividing plate 7 is by inside static batch mixing pipeline 2
In axial direction it is separated into the 3rd semicircle helical duct 8 and the 4th semicircle helical duct 9, static ribbon dividing plate 7 and static batch mixing
The inwall of pipeline 2 is fixedly connected.
Plane where the both ends of dynamic screw dividing plate 4 and static ribbon dividing plate 7 is each perpendicular to dynamic mixture pipeline 3
Central axis, the right part center of dynamic screw dividing plate 4 are provided with dynamic cone tank 10, and the left part center of dynamic screw dividing plate 4 is provided with
Dynamically top 11, the right part center of static ribbon dividing plate 7 is provided with static cone tank 12, and the left part center of static ribbon dividing plate 7 is set
There is static state top 13, top 11 left end of dynamic is withstood in static cone tank 12.
The left end of fixed -piping 1 is connected with the right-hand member flange of dynamic mixture pipeline 3, and support 14, support 14 are provided with fixed -piping 1
Stationary center 15 is provided with, the left end of stationary center 15 is withstood in dynamic cone tank 10.
The quantity of batch mixing unit is more than or equal to two groups, and flange connects between two adjacent groups batch mixing unit, one group of batch mixing unit
Static top 13 left end withstand in the dynamic cone tank 10 of one group of adjacent batch mixing unit, the one of fixed -piping 1 and low order end
The unit connection of group batch mixing.The length of static batch mixing pipeline 2 is less than the length of dynamic mixture pipeline 3.
PLA pre-polymerization mixing device 40 includes the prepolymerization pipe 41 being arranged in vertical, and the both ends of prepolymerization pipe 41 are fixed
Be connected on the first conveying pipeline 22, or can using the first conveying pipeline 22 as prepolymerization pipe 41, in prepolymerization pipe 41 from upper and
Under it is identical at least provided with two batch mixing preheaters, all equal structures of batch mixing preheater；Prepolymerization pipe 41 can make in the present invention
Replaced with the first conveying pipeline 22；
Each batch mixing preheater includes having the first upper conical guide shell 42, second of same center line is upper conical to lead
Flow cartridge 43, the first inferior pyramidal guide shell 44, the second inferior pyramidal guide shell 45, upper shunting cone cylinder 46 and lower shunting cone cylinder 47；
The first upper conical inferior pyramidal guide shell 44 of guide shell 42 and first is upper coarse and lower fine and upper and lower permeable structures, and first
The upper conical bottom diameter of guide shell 42 is more than the second upper conical bottom diameter of guide shell 43, the second upper conical guide shell 43 and second
Inferior pyramidal guide shell 45 is up-thin-low-thick and upper and lower permeable structures, the first upper conical bottom diameter of guide shell 42 and the second epicone
The upper-end inner diameter of shape guide shell 43 is equal, the bottom diameter of the first inferior pyramidal guide shell 44 and the upper-end inner diameter of the second inferior pyramidal guide shell 45
It is equal, the first upper conical upper end outer of guide shell 42, the second upper conical lower end outer of guide shell 43, the first inferior pyramidal guide shell 44
Upper end edge and the lower end edge of the second inferior pyramidal guide shell 45 are fixedly connected with the inwall of prepolymerization pipe 41, the first upper conical water conservancy diversion
Cylinder 42 lower end edges be fixedly connected with the second upper conical upper end edge of guide shell 43, the first upper conical lower end edge of guide shell 42 and
The second upper conical upper end edge of guide shell 43 is fixedly connected, the lower end edge of the first inferior pyramidal guide shell 44 and the second inferior pyramidal water conservancy diversion
45 upper end edges of cylinder are fixedly connected；
Upper shunting cone cylinder 46 is the structure that top sharply blocks, bottom is open, lower shunting cone cylinder 47 be bottom sharply block,
The structure of open top, upper shunting cone cylinder 46 bottom diameter are equal to the lower shunting upper-end inner diameter of cone cylinder 47, upper shunting cone cylinder 46 lower end
Internal diameter is less than the internal diameter of prepolymerization pipe 41, and the upper shunting lower end edge of cone cylinder 46 is fixedly connected with lower shunting cone cylinder 47 upper end edge；On
Shunting cone cylinder 46 and the lower shunting outer wall of cone cylinder 47 are fixedly connected by heating agent conduit with the inwall of prepolymerization pipe 41；
The upper end of upper shunting cone cylinder 46 be higher than the first upper conical upper end edge of guide shell 42, the lower end of lower shunting cone cylinder 47 and
The upper end edge of second inferior pyramidal guide shell 45 flushes；
Circulation road under tube wall melt is formed between upper the shunting outer surface of cone cylinder 46 and the outer surface of the first inferior pyramidal guide shell 44
48, form circulation road 49 under blend melt between lower the shunting outer surface of cone cylinder 47 and the outer surface of the first inferior pyramidal guide shell 44；
Upper shunting cone cylinder 46 outer surface is provided with central melt flow dividing structure 50, the lower end of central melt flow dividing structure 50 and pipe
The lower end of circulation road 48 crosses under wall melt.
Central melt flow dividing structure 50 includes a shunt cylinder 51 and several isocons 52, shunt cylinder 51 and isocon 52
It is each provided in shunting cone cylinder 46, the open top of shunt cylinder 51, the upper end edge of shunt cylinder 51 is horizontal, and isocon 52 is wide at the top and narrow at the bottom,
All isocons 52 of isocon 52 are evenly arranged along the upper shunting circumferencial direction of cone cylinder 46, the upper end of isocon 52 and the lower end of shunt cylinder 51
Connection, the lower port of isocon 52 are located at the lower end of circulation road 48 and the upper end intersection of circulation road 49 under blend melt under tube wall melt
Outside.
Upper shunting cone cylinder 46 is internally formed preheating cavity 53 with lower shunting cone cylinder 47, the first inferior pyramidal guide shell 44 and the
Thermal cycle stream has been passed through in preheating cavity 54 under being internally formed of two inferior pyramidal guide shells 45, upper preheating cavity 53 and lower preheating cavity 54
Body medium.Heating agent conduit is inner to be connected with upper preheating cavity 53, and heating agent external catheter end is stretched out outside prepolymerization pipe.Heating agent conduit is to upper
Hot circulating fluid medium in preheating cavity 53 carries out circulation water conservancy diversion, and plays and shunt cone cylinder 46 and lower shunting cone cylinder in support positioning
47 effect.Wherein heating agent conduit does not illustrate in figure comes.
The progress batch mixing warm of setting PLA pre-polymerization mixing device 40 is on the first conveying pipeline：Melt is in prepolymerization
Flowed downward in pipe 41, the melt A at the center of prepolymerization pipe 41 enters shunt cylinder 51, melt A along upper shunting cone cylinder 46 surface
Flow to the intersection of the lower end of circulation road 48 and the upper end of circulation road 49 under blend melt under tube wall melt automatically by isocon 52 again
Outside, at the same time, the melt B close to the tube wall of prepolymerization pipe 41 enters tube wall melt by the first upper conical guide shell 42
In lower circulation road 48, flow under tube wall melt and be located at melt A top behind the lower end of circulation road 48, be i.e. melt A and melt B enter mixed
Close under melt after circulation road 49, melt A is located at lower floor, and melt B is located at upper strata, when melt A and melt B are flowed under blend melt
When the lower end of circulation road 49 exports, melt B is located among melt A, i.e. melt A is transformed into from center to be continued to dirty along tube wall
Dynamic, melt B continues to flow downward by being transformed into center close to tube wall, and during transposition, melt A and melt B have also carried out one
Surely mix.The flow direction for being oriented to melt A of hollow arrow in Fig. 5, the flow direction for being oriented to melt B of filled arrows.
During melt mixed transposition, hot circulating fluid medium is passed through in upper preheating cavity 53 and lower preheating cavity 54,
Hot circulating fluid medium can add thermal medium such as according to technological requirement；Biphenyl Ether, conduction oil etc., are preheated to melt,
To facilitate control prepolymerization process.The present invention takes no dead angle design in the junction of all parts.A piece prepolymerization pipe 41
Multigroup batch mixing preheater can be inside installed from top to bottom.
The sound integrated pipeline formula mixing device 31 set on melt pipe 72, has the advantages that：In spinning
In the presence of screw extruder 65, the PLA after polymerization is entered by fixed -piping 1, when sticky melt is under high pressure by dynamic
When state batch mixing pipeline 3, dynamic screw dividing plate 4 starts to rotate under the promotion of melt, on the inwall of dynamic mixture pipeline 3
The dynamic screw dividing plate 4 that viscous melt is rotated scrapes, the viscous melt scraped and diluter must melt of the centre of dynamic mixture pipeline 3
Body mixes, and pushes ahead to the 3rd semicircle helical duct 8 and the 4th semicircle helical duct 9 in static batch mixing pipeline 2
Inside mixed, entered back into after mixing and above-mentioned mixing process is repeated in dynamic mixture pipeline 3.Due to the first semicircle helical duct
5 and second semicircle spiral logical 6 it is longer and set in the axial direction for the hand of spiral, can thus pass through in pressurized melt
When, driving dynamic screw dividing plate 4 rotates；The top form coordinated with cone tank top pressure of rotary material of dynamic screw dividing plate 4, no
Only easily fabricated and assembling, and frictional force is smaller in rotary course, so as to improve the efficiency of the scraper of dynamic screw dividing plate 4.
The length of static batch mixing pipeline 2 is less than the length of dynamic mixture pipeline 3, can so make whole melt pipe 72（By static batch mixing
Pipeline 2 and dynamic mixture pipeline 3 form）Most of length the king-sized PLA of the viscosity adhered on tube wall can all be scraped
Fall, fully improve the uniformity of mixing.
Using comprising the following steps that for spinning production technology of the invention：
（1）, by participate in polymerization catalyst, stabilizer equal solvent fusion turn into suspension, suspension is injected into stirring
In tank 19, while lactide melt is injected into agitator tank, open agitator tank work, stir 20~40min of melt, until mixing
Stop stirring after uniformly；
（2）, open the first autocontrol valve 23 of agitator tank 19 bottom, lactide melt is mixed by the first measuring pump 24
Compound drops into through the first conveying pipeline 22 and preliminary polymerization operation is just carried out in poly- tank 20, in lactide melt mixture self gravitation
In the presence of, lactide melt mixture by PLA pre-polymerization mixing device during enter after pre- hot mixing it is just poly-
In tank 20, it is that temperature is 100~150 DEG C to carry out preliminary polymerization operation in first poly- tank 20, time of preliminary polymerization operation for 1~
2h, pressure 0.2MPa, after preliminary polymerization operation, the mixture of lactide, titanium dioxide and solvent is aggregated into be sticky
Polylactic acid melt；
（3）, open just the poly- bottom of tank 20 the second autocontrol valve 26, polylactic acid melt is passed through by the second measuring pump 27
Second conveying pipeline 25 drops into the final polymerization operation of the interior progress of poly- tank 21 eventually, and final polymerization operation is that temperature is 150~280 DEG C,
The time of final polymerization operation is 1~6h, pressure 0.3MPa；
（4）, open the 3rd autocontrol valve of the poly- bottom of tank 21 eventually, the polylactic acid melt in poly- tank 21 is through the 3rd conveying eventually
Pipe 28 is discharged, and the 3rd measuring pump 29 set on the 3rd conveying pipeline 28 provides the dynamic of metering, filtering and conveying for polylactic acid melt
Power, clean, well mixed polylactic acid melt is extruded as band strip by polylactic acid melt extrusion orifice plate 32, then to PLA
Melt carries out water cooling；
（5）, polylactic acid melt water cooling be solidified to operation pelleter 17 after normal temperature and carry out section operation, pelleter 17 is by tape
The polylactic acid melt of shape is cut into polylactic acid slice（It is granular）, polylactic acid slice is transported in vulcanization crystallizing bed 60 by conveyer
Crystallized, polylactic acid slice is transported to drying tower 61 and is dried after crystallization；
（6）, dried PLA dry chip is stored into the second feed bin 63, dry titanium dioxide dry powder is stored
Into the first feed bin 62, the bottom of the second feed bin 63 is connected by main tremie pipe 67 with the charging aperture of spinning screw extruder 65；
（7）, the titanium dioxide dry powder in the first feed bin 62 dropped into by gravity in powder meter 71, powder meter 71
Titanium dioxide dry powder is measured；What the PLA dry chip in the second feed bin 63 fell by gravity in main tremie pipe 67
Meanwhile compressed air system 64 is blown into dry compressed air into airduct 68, the dioxy that will be measured by powder meter 71
Change titanium dry powder to be blown into main tremie pipe 67, wind speed size can be adjusted in adjusting air valve 69, to adapt to titanium dioxide dry powder
With the mixing of PLA dry chip different proportion, titanium dioxide dry powder falls after being mixed in main tremie pipe 67 with PLA dry chip
Enter into spinning screw extruder 65；
（8）, spinning screw extruder 65 by titanium dioxide dry powder and PLA dry chip be heated to 200-300 DEG C be made it is poly-
Lactic acid melt；
（9）, under the discharge pressure of spinning screw extruder 65, the polylactic acid melt after filtering passes through the quilt of melt pipe 72
It is sent in spinning manifold 66, further uniformly mixing is poly- for the sound integrated pipeline formula mixing device 31 installed on melt pipe 72
Lactic acid melt；
（10）, the spinning pump 73 in spinning manifold 66 will enter filament spinning component after polylactic acid melt metering supercharging
74, polylactic acid melt is spun into delustring or semi-dull acid fiber by polylactic by filament spinning component 74.
Using the production technology of the present invention, the present invention first produces polylactic acid slice, further according to the fiber properties present invention poly-
Certain proportion is added in lactic acid sliced materials（0.2%~3%）Fiber grade titanium dioxide（TiO2）, the feel of fiber has substantially
Improvement, it is larger to have light（Not plus TiO2）The obvious soft many of acid fiber by polylactic.Secondly, dyeing kinetics substantially reduce, and contaminate
Color uniformity is improved.
The present embodiment is not that the shape to the present invention, material, structure etc. make any formal limitation, every according to this hair
Any simple modification, equivalent change and modification that bright technical spirit is made to above example, belongs to the technology of the present invention side
The protection domain of case.
Claims (6)
1. polylactic acid slice adds titanium dioxide delustring spinning production system, it is characterised in that：Including aggregation framework, pelleter,
Cooling bay, vulcanize crystallizing bed, drying tower, the first feed bin, the second feed bin, compressed air system, spinning screw extruder and spinning
Casing, agitator tank, first poly- tank are sequentially provided with aggregation framework from top to bottom and poly- tank, stirring pot bottom pass through the first conveying pipeline eventually
It is connected with first poly- tank top, the first conveying pipeline is provided with PLA pre-polymerization mixing device, the first autocontrol valve and the first metering
Pump, first poly- pot bottom be connecteds by the second conveying pipeline with poly- tank top eventually, the second conveying pipeline provided with the second autocontrol valve with
Second measuring pump, whole poly- pot bottom are connected with the 3rd conveying pipeline, and the 3rd conveying pipeline is provided with the 3rd measuring pump, the 3rd conveying pipeline
Discharging opening is connected with the polylactic acid melt extrusion orifice plate above cooling bay, and cooling water is loaded with cooling bay, pelleter
Working end is located in cooling bay, and the discharge end of pelleter is located at outside cooling bay and by conveyer with vulcanizing crystallizing bed feed end
Connection, the charging aperture for vulcanizing crystallizing bed discharge end and drying tower connect, the charging aperture of the discharging opening of drying tower and the second feed bin
Connection；
The discharging opening of second feed bin is connected by main tremie pipe with the charging aperture of spinning screw extruder, and compressed air system goes out
Airduct is provided tiltedly between air port and main tremie pipe, airduct and the position of compressed air system connection end are higher than airduct and main blanking
The position of pipe connection end, airduct are provided with the adjusting air valve of neighbouring compressed air system, and the discharging opening of the first feed bin passes through mixing
Expects pipe is connected with airduct, and mix tube is provided with powder meter, the discharging opening of spinning screw extruder by melt pipe with
Spinning manifold connects, and melt pipe is provided with sound integrated pipeline formula mixing device, be provided with spinning manifold spinning pump with
Filament spinning component, the discharging opening of melt pipe extend into spinning manifold and are connected with the charging aperture of spinning pump, spinning measuring
The outlet of pump and the import of filament spinning component connect；
PLA pre-polymerization mixing device includes the prepolymerization pipe that is arranged in vertical, in prepolymerization pipe from top to bottom at least provided with
Two batch mixing preheaters, all equal structures of batch mixing preheater are identical；
Each batch mixing preheater include the first upper conical guide shell with same center line, the second upper conical guide shell,
First inferior pyramidal guide shell, the second inferior pyramidal guide shell, upper shunting cone cylinder and lower shunting cone cylinder；
First upper conical guide shell and the first inferior pyramidal guide shell are upper coarse and lower fine and upper and lower permeable structures, and first upper conical leads
Flow cartridge bottom diameter is more than the second upper conical guide shell bottom diameter, and the second upper conical guide shell and the second inferior pyramidal guide shell are equal
For up-thin-low-thick and upper and lower permeable structures, the first upper conical guide shell bottom diameter and the second upper conical guide shell upper-end inner diameter phase
Deng the first inferior pyramidal guide shell bottom diameter is equal with the second inferior pyramidal guide shell upper-end inner diameter, on the first upper conical guide shell
Hold under outer, the second upper conical guide shell lower end outer, the first inferior pyramidal guide shell upper end edge and the second inferior pyramidal guide shell
End edge edge is fixedly connected with prepolymerization inside pipe wall, the first upper conical guide shell lower end edge and the second upper conical guide shell upper end
Edge is fixedly connected, and the first upper conical guide shell lower end edge is fixedly connected with the second upper conical guide shell upper end edge, and first
Inferior pyramidal guide shell lower end edge is fixedly connected with the second inferior pyramidal guide shell upper end edge；
Upper shunting cone cylinder is the structure that top sharply blocks, bottom is open, and lower shunting cone cylinder sharply blocks for bottom, open top
Structure, upper shunting cone cylinder bottom diameter is equal to lower shunting cone cylinder upper-end inner diameter, and upper shunting cone cylinder bottom diameter is less than prepolymerization
Bore, upper shunting cone cylinder lower end edge are fixedly connected with lower shunting cone cylinder upper end edge；Upper shunting cone cylinder and lower shunting cone cylinder
Outer wall is fixedly connected by heating agent conduit with prepolymerization inside pipe wall；
The upper end of upper shunting cone cylinder is higher than the first upper conical guide shell upper end edge, the lower end of lower shunting cone cylinder and the second inferior pyramidal
Guide shell upper end edge flushes；
Circulation road under tube wall melt, lower spreader are formed between upper spreader tube outer surface and the first inferior pyramidal water conservancy diversion tube outer surface
Circulation road under blend melt is formed between tube outer surface and the first inferior pyramidal water conservancy diversion tube outer surface；
Upper spreader tube outer surface is provided with central melt flow dividing structure, and lower end and the tube wall melt of central melt flow dividing structure flow down
Passage lower end crosses.
2. polylactic acid slice according to claim 1 adds titanium dioxide delustring spinning production system, it is characterised in that：It is dynamic
Quiet integrated pipeline formula mixing device includes fixed -piping and batch mixing unit, and batch mixing unit includes the static mixing tube of coaxial setting
Road and dynamic mixture pipeline, the left end of dynamic mixture pipeline are connected with the right-hand member flange of static batch mixing pipeline, dynamic mixture pipeline
Interior to be provided with dynamic screw dividing plate, by dynamic mixture pipeline, axially inside direction is separated into the first semicircle spiral to dynamic screw dividing plate
Passage and the second semicircle helical duct, dynamic screw dividing plate coordinate with dynamic mixture inner-walls of duct gap；In static batch mixing pipeline
Provided with static ribbon dividing plate, by static batch mixing pipeline, axially inside direction is separated into the 3rd semicircle spiral and led to static ribbon dividing plate
Road and the 4th semicircle helical duct, static ribbon dividing plate are fixedly connected with static batch mixing inner-walls of duct；
Plane where the both ends of dynamic screw dividing plate and static ribbon dividing plate is each perpendicular to the central shaft of dynamic mixture pipeline
Line, dynamic screw dividing plate right part center are provided with dynamic cone tank, and dynamic screw dividing plate left part center is top provided with dynamic, quiet
State helical baffle right part center is provided with static cone tank, and static ribbon dividing plate left part center is provided with static top, dynamic top
Sharp left end is withstood in static cone tank；
Fixed -piping left end is connected with dynamic mixture pipeline right-hand member flange, and support is provided with fixed -piping, and support, which is provided with, to be fixed
Top, stationary center left end is withstood in dynamic cone tank.
3. polylactic acid slice according to claim 2 adds titanium dioxide delustring spinning production system, it is characterised in that：It is mixed
The quantity of material unit is more than or equal to two groups, and flange connects between two adjacent groups batch mixing unit, one group of batch mixing unit it is static top
Left end is withstood in the dynamic cone tank of one group of adjacent batch mixing unit, one group of batch mixing unit connection of fixed -piping and low order end.
4. the polylactic acid slice addition titanium dioxide delustring spinning production system according to Claims 2 or 3, its feature exist
In：The length of static batch mixing pipeline is less than the length of dynamic mixture pipeline.
5. polylactic acid slice according to claim 1 adds titanium dioxide delustring spinning production system, it is characterised in that：In
Heart melt flow dividing structure includes a shunt cylinder and several isocons, and shunt cylinder and isocon are each provided in shunting cone cylinder,
Shunt cylinder open top, shunt cylinder upper end edge are horizontal, and isocon is wide at the top and narrow at the bottom, and all isocons of isocon are along upper shunting cone cylinder
Circumferencial direction is evenly arranged, and isocon upper end connects with shunt cylinder lower end, and shunting infratubal port is located at circulation road under tube wall melt
Lower end and the outside of circulation road upper end intersection under blend melt.
6. polylactic acid slice according to claim 5 adds titanium dioxide delustring spinning production system, it is characterised in that：On
Shunting cone cylinder is internally formed preheating cavity with lower shunting cone cylinder, and the first inferior pyramidal guide shell is interior with the second inferior pyramidal guide shell
Portion forms lower preheating cavity, and hot circulating fluid medium has been passed through in upper preheating cavity and lower preheating cavity；Heating agent conduit it is inner with it is upper pre-
Hot chamber connection, heating agent external catheter end are stretched out outside prepolymerization pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233619.6A CN105690702B (en) | 2016-04-15 | 2016-04-15 | Polylactic acid slice adds titanium dioxide delustring spinning production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233619.6A CN105690702B (en) | 2016-04-15 | 2016-04-15 | Polylactic acid slice adds titanium dioxide delustring spinning production system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105690702A CN105690702A (en) | 2016-06-22 |
| CN105690702B true CN105690702B (en) | 2017-11-10 |
Family
ID=56216952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610233619.6A Active CN105690702B (en) | 2016-04-15 | 2016-04-15 | Polylactic acid slice adds titanium dioxide delustring spinning production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105690702B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791454A (en) * | 2020-06-30 | 2020-10-20 | 浙江海利环保科技股份有限公司 | Method for increasing whiteness in bottle chip granulation process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589523A (en) * | 2015-01-16 | 2015-05-06 | 湖南盛锦新材料有限公司 | Production method and production equipment of special material for polypropylene melt-blown non-woven fabric |
| CN105369382A (en) * | 2015-07-07 | 2016-03-02 | 中山市丝琪纺织科技有限公司 | Polyolefin blending modification elastic yarn slice and elastic yarn preparation method |
| CN205522386U (en) * | 2016-04-15 | 2016-08-31 | 河南省龙都生物科技有限公司 | Titanium dioxide extinction spinning production system is added in polylactic acid section |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011031251A1 (en) * | 2009-09-10 | 2011-03-17 | International Fibers, Ltd. | Apparatus and process for preparing superior carbon fibers |
-
2016
- 2016-04-15 CN CN201610233619.6A patent/CN105690702B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589523A (en) * | 2015-01-16 | 2015-05-06 | 湖南盛锦新材料有限公司 | Production method and production equipment of special material for polypropylene melt-blown non-woven fabric |
| CN105369382A (en) * | 2015-07-07 | 2016-03-02 | 中山市丝琪纺织科技有限公司 | Polyolefin blending modification elastic yarn slice and elastic yarn preparation method |
| CN205522386U (en) * | 2016-04-15 | 2016-08-31 | 河南省龙都生物科技有限公司 | Titanium dioxide extinction spinning production system is added in polylactic acid section |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105690702A (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105734701B (en) | Polylactic acid slice adds titanium dioxide delustring spinning production technology | |
| CN105235175A (en) | Efficient screw extruder | |
| CN206680422U (en) | A kind of polymerization granulation system | |
| CN105714391B (en) | Polylactic acid bi-component composite fiber spinning technique | |
| CN105803565B (en) | PLA delustering fibre direct fabrics production technology | |
| CN105690702B (en) | Polylactic acid slice adds titanium dioxide delustring spinning production system | |
| CN105729660B (en) | PLA delustring section production technology | |
| CN209832528U (en) | PLA film raw materials mixing extrusion system | |
| CN105729745B (en) | PLA bi-component composite fiber spinning production equipment | |
| CN105734702B (en) | PLA delustering fibre direct fabrics system | |
| CN213618218U (en) | Extrusion device is used in plastic products production | |
| CN205522386U (en) | Titanium dioxide extinction spinning production system is added in polylactic acid section | |
| CN205522385U (en) | Two ingredient composite fiber spinning production facilities of polylactic acid | |
| CN116421988B (en) | Efficient anti-adhesion centrifugal spray drying device for metaphosphate | |
| CN205815656U (en) | Falling liquid film melt polycondensation reaction device between a kind of one-tenth comb | |
| CN105818291B (en) | PLA delustring section production system | |
| CN205522079U (en) | Polylactic acid extinction section production system | |
| CN207294951U (en) | A kind of new color masterbatch spinning-drawing machine | |
| CN207240559U (en) | The agitating device of Masterbatch production line | |
| CN201819519U (en) | Continuous rotary broken-strip dryer | |
| CN110103436B (en) | High adsorption performance melting extruder for nanofiber preparation | |
| CN205529171U (en) | Polylactic acid delustered fiber direct spinning system | |
| CN104943007B (en) | A kind of fibrous composite puddles batcher | |
| CN210496191U (en) | Horizontal self-rotating airflow plastic stirring machine | |
| CN109208087B (en) | Equipment for melt direct spinning of multiple varieties of differentiated color yarns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |