CN203973821U - For the production of the casting device of polyamide granules - Google Patents
For the production of the casting device of polyamide granules Download PDFInfo
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- CN203973821U CN203973821U CN201420173506.8U CN201420173506U CN203973821U CN 203973821 U CN203973821 U CN 203973821U CN 201420173506 U CN201420173506 U CN 201420173506U CN 203973821 U CN203973821 U CN 203973821U
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- polyamide
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- valve
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Links
- 239000004952 Polyamide Substances 0.000 title claims abstract description 89
- 229920002647 polyamide Polymers 0.000 title claims abstract description 89
- 238000005266 casting Methods 0.000 title claims abstract description 81
- 239000008187 granular material Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 52
- 238000005520 cutting process Methods 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000008569 process Effects 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 25
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 description 60
- 239000000203 mixture Substances 0.000 description 22
- 230000008859 change Effects 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 12
- 230000004044 response Effects 0.000 description 11
- 239000000654 additive Substances 0.000 description 10
- 238000005259 measurement Methods 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 9
- 150000004985 diamines Chemical class 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 150000001991 dicarboxylic acids Chemical class 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 238000006116 polymerization reaction Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 150000001408 amides Chemical group 0.000 description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 5
- 229910052794 bromium Inorganic materials 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000006081 fluorescent whitening agent Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 229920003656 Daiamid® Polymers 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical group FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 229920003231 aliphatic polyamide Polymers 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- -1 diphenyl phosphorous acid hexamethylene diamine salt Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- SJXAPSYSUSLVBB-UHFFFAOYSA-N P(O)(O)O.C1(=CC=CC=C1)[K] Chemical compound P(O)(O)O.C1(=CC=CC=C1)[K] SJXAPSYSUSLVBB-UHFFFAOYSA-N 0.000 description 1
- JYHBYPWYDMUSKO-UHFFFAOYSA-N P(O)(O)O.C1(=CC=CC=C1)[Na] Chemical compound P(O)(O)O.C1(=CC=CC=C1)[Na] JYHBYPWYDMUSKO-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000005819 Potassium phosphonate Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001266 acyl halides Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- AWSFEOSAIZJXLG-UHFFFAOYSA-N azepan-2-one;hydrate Chemical compound O.O=C1CCCCCN1 AWSFEOSAIZJXLG-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- TVZISJTYELEYPI-UHFFFAOYSA-N hypodiphosphoric acid Chemical compound OP(O)(=O)P(O)(O)=O TVZISJTYELEYPI-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- FLFJVPPJGJSHMF-UHFFFAOYSA-L manganese hypophosphite Chemical compound [Mn+2].[O-]P=O.[O-]P=O FLFJVPPJGJSHMF-UHFFFAOYSA-L 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The utility model provides the casting device for the production of polyamide granules, and it is the device that can be used for prediction casting output and polyamide granules is provided.In one embodiment, casting device can comprise container, and described container comprises pressure controller and extrudes valve; Cutter, described cutter has cutting speed; And process controller, described process controller comprise for the pressure control module of controlled pressure controller, for control extrude valve extrude valve module, for controlling the cutting speed module of cutting speed, and for determine casting output output module.Described output module can (i) temperature of casting water of temperature, outflow of casting water of amount, inflow of casting water based on flowing into from two or more positions calculate the heat transmission between the casting water that flow into the casting water of casting device and flow out described device, and (ii) by heat transmission with to cast output associated.
Description
Technical field
The utility model model relates to for measuring or predicting that the casting output of the polyamide polymer of extruding produces the casting device of polyamide granules.
Background technology
Be described as nylon polyamide at the particular types fatty polyamide that repeats the aliphatic key between amide units with at least 85%.Known these aliphatic polyamides are derivative from dicarboxylic acids and other derivative (as acid anhydrides, acid amides, acyl halide, half ester and diester) that can form the dicarboxylic acids of acid amides, conventionally react with primary amine or secondary amine.More specifically, form aliphatic polyamide polymers by monomer (as dicarboxylic acids and diamines), known is having reacted of derivative that maybe can be formed the dicarboxylic acids of acid amides by primary diamines or secondary diamine (being connected to the diamines at least on each nitrogen with a hydrogen) and dicarboxylic acids.The example of reaction process is as follows:
-[NH-R'-NH-CO-R-CO]-
n-+nH
2O
Wherein R and R' represent bivalent hydrocarbon radical, and n represents the quantity of repetitive and the quantity of hydrone.
Named " construction unit " of polymer derivative from a molecule of each diacid and diamines by the quantity of carbon atom in group (R and R ') separately.Therefore,, by hexa-methylene-1, the polyamide of 6-diamines and adipic acid is " nylon 6,6 " (polyhexamethylene adipamide).
Fibre-forming polyamide can form by (being generally 180 DEG C to 300 DEG C) and heating the diamines of equimolar amounts substantially and dicarboxylic acids or heating under polycondensation reaction condition the preparing of dicarboxylic acid derivatives of acid amides.This product has fiber and forms character, wherein can realize sufficiently high molecular weight.
The characteristic of a given polyamide can change in sizable scope, and may depend on molecular weight.To a certain extent, this polyamide characteristic is subject to the impact of the character of its end group, and this depends on excessive which kind of reactant that used, diamines or dicarboxylic acids.
Two features of fibre-forming polyamide relate to its high-melting-point and low solubility.Almost opaque solid always of fibre-forming polyamide by being derived compared with the amine of simple types and acid institute, described opaque solid can melt or become transparent at a quite definite temperature.Lower than the fine polyamide of shape of its fusing point, in the time detecting with X ray, generally present the positive evidence of the crystal structure of sharp-pointed X-ray crystal powder diffraction pattern, large bulk state.The density of these polyamide is conventionally between 1.0 and 1.2, and more specifically, the density of nylon 6,6 is considered to 1.14 gram per centimeters at present
3.
The same with other polycondensation products, polyamide generally comprises the separate unit of very approximate structure.The mean size of these separate units, the mean molecule quantity of polymer are deliberately controlled in certain limited field.Polymerisation is more further carried out, and mean molecule quantity (and inherent viscosity) will be higher.
If equimolar amounts uses reactant completely, under the condition that can make volatile products overflow, continue for a long time polymerization and heating, and can obtain the polyamide of very high molecular weight.But if the arbitrary reactant of excessive use, polymerization proceeds to certain a bit, then substantially stops.The time point that polymerization stops may depending on the amount of diamines or the binary acid (or derivative) of excessive use.
The easy technology of preparing polyamide comprises: prepare a salt by the diamines and the dicarboxylic acids that mix approximately chemical equivalent in liquid, described liquid may be selected to be the poor solvent to product salt.If needed, subsequently can be by taking from suitable solvent crystallization the salt that purifying separates from liquid.These diamines-dicarboxylates are crystalloid, and have definite fusing point.Their water solubles, and can carry out crystallization from some alcohol and alcohol-aqueous mixtures easily.
Preparing fibre-forming polyamide from diamines-dicarboxylate can carry out in many ways.Do not having under the condition of solvent or diluent, and under the condition of the water generating, this salt can be heated to reaction temperature (180 DEG C to 300 DEG C) in allowing to remove reaction.Manufacturing with it before the object of filament and other shape, may need polyamide to be placed under reduced pressure, for example, be equivalent under the absolute pressure of 50 to 300 millimetress of mercury (67 to 400 millibars).This can, making before polymer cure, complete by the emptying reactor of preparing polyamide very easily.
In the ordinary course of things, in above-mentioned polyamide forming process, necessarily require not add catalyst.For example, but some phosphorous material (metal phosphinate hydrochlorate and phosphate) plays catalytic action to a certain extent as everyone knows.Use the catalyst adding sometimes to give extra advantage to the material of preparing HMW.
The commercialization preparation of most of linear condensation things, polyamide is usually directed to heat monomer parent material, to cause the condensation of progressive polymer.This process is carried out in several stages conventionally, comprises in the middle of removing volatile matter and forms low-molecular-weight, low viscous polymeric liquid.At various vacuum and the time of staying and temperature, process this low-molecular-weight, low viscous polymeric liquid so that polymer can reach required final molecular weight and viscosity.
Although desired final molecular weight and viscosity generally can realize, during casting, obtain technological parameter accurately, the homogeneity that therefore obtains consistent polymeric material may go wrong.Therefore, finding and utilize the technological parameter of multiple technologies pin-point accuracy to manufacture polymeric material, is the progress in this area.
Utility model content
The utility model relates to for the production of the device of polyamide granules and relevant apparatus.In one embodiment, a kind of device for the manufacture of polyamide granules can comprise HIGH PRESSURE TREATMENT container, cutter and process controller.Described HIGH PRESSURE TREATMENT container can comprise pressure controller (as by import, heating component and/or discharge valve) and extrude valve.Described cutter can be configured to cut the polyamide polymer of extruding from HIGH PRESSURE TREATMENT container to form polyamide granules.Described process controller can comprise for the pressure control module of controlled pressure controller, for controlling the cutting speed module of cutting speed, for controlling the valve module of extruding of extruding valve, and for calculating the output module of casting output.
Brief description of the drawings
Understand better the utility model below in conjunction with nonrestrictive accompanying drawing, wherein:
Figure 1A is according to the sectional view of the spendable HIGH PRESSURE TREATMENT container of embodiment of the present utility model;
Figure 1B is according to the sectional view of spendable another HIGH PRESSURE TREATMENT container of embodiment of the present utility model;
Fig. 2 is wherein according to the schematic diagram of the system of the spendable device of the present utility model of embodiment of the present utility model.
Fig. 3 is according to the figure of the sample casting of the polyamide of an embodiment of the present utility model; And
Fig. 4 is the figure of time beguine according to the batch weight of the polyamide of an embodiment of the present utility model.
It should be noted that above-mentioned figure is only the exemplary expression of embodiment of the present utility model, does not form any restriction by described figure to scope of the present utility model.
Detailed description of the invention
A lot of for the details of illustrating the purpose of this utility model although detailed description has below comprised, person of skill in the art will appreciate that a lot of variations of details below and be modified in the scope of embodiment disclosed in the utility model.
Therefore, embodiment has below illustrated the utility model without loss of generality, and the utility model is not brought to restriction.Before describing the utility model in more detail, be to be understood that the utility model is not limited to described specific embodiment, this is because this embodiment can change.It is also understood that the term that used is only for the object of describing specific implementations here, be not intended to limit, this is because scope of the present utility model is only limited to the appended claims.Unless otherwise prescribed, all technical terms and the scientific terminology that used here has the identical implication of implication of conventionally understanding with the those of ordinary skill in the art in field described in the utility model.
As the singulative " " and " this " that are used in this description and appended claim comprise plural object, unless context separately has clear and definite miscellaneous stipulations.Therefore, for example " polyamide " comprises multiple polyamide.
In the disclosure, " comprising ", " containing " and " having " etc. can have according to united states patent law gives their meaning and can mean " comprising " etc., and is conventionally interpreted as open term.Term " by ... composition " be enclosed term, and only comprise the device listed especially, method, component, parts, structure, step etc. according to the meaning of united states patent law.In the time of the device will " substantially by ... composition " or " basic composition " etc. comprising for the utility model, method, component, parts, structure, step etc., it relates to and the similar element of disclosure herein, but it can comprise extra building stone, composition component, method step etc.But, with corresponding device disclosed herein, compound, method etc. Comparatively speaking, these extra devices, method, component, parts, structure, step etc. can not affect in fact foundation characteristic and the novel features of device, compound, method etc.In details more, in the time of the device will " substantially by ... composition " or " basic composition " etc. comprising for the utility model, method, component, parts, structure, step etc., it has meaning and these terms given according to united states patent law is open, as long as the content changing that the basic or novel features of recording or not by being greater than, it allows to be greater than recorded content and exists.When use open-ended term, during as " comprising " or " comprising ", should be appreciated that, as clearly state, also directly supported term " substantially by ... form " and term " by ... form ".
Term " polymerisable compound " or " polymerizable solution " refer to the solution adding according to the agitated autoclave of embodiment of the present utility model, when it processes in autoclave under specific temperature and pressure curve, formation can be extruded or be gathered in and polyamide polymer for further using.
Term " polyamide salt " refers to the salt being included in polymerisable compound (together with other additives), and described polymerisable compound provides the basic polymerizable material that is used to form polyamide polymer.If for example polyamide polymer is nylon 6,6, salt can be prepared by adipic acid and hexamethylene diamine.Other additive also can be present in polyamide solution, or introduces before reaction vessel, or is incorporated in reaction vessel.For example, conventionally titanium dioxide is introduced directly in container, but before polymerisable compound is incorporated into container, introduces other additives, such as catalyst, fluorescent whitening agent, defoamer etc., although do not require this order or the even existence of these additives.
Term " cycle " relates to the stage of the batch polymerization processing mainly being limited by the pressure curve in container.Period 1 (cycle 1) occurs in the beginning of batch processed, and at this moment pressure is just raised to relatively high pressure from relatively low pressure.Occur in relatively high pressure is kept to a period of time second round (cycle 2).Period 3 occurs when (cycle 3) is reduced to relatively low pressure along with relatively high pressure.Period 4 (cycle 4) is along with relatively low pressure being kept to a period of time and occurring.Period 5 (cycle 5) is along with the polymer of preparation is extruded and occurred in container.Term " period 4 ", " cycle 4 " and " cycle before casting " that the utility model uses can replace mutually.
Phrase, for example " be suitable for providing ", " being enough to cause " or " be enough to produce " etc. relate to the reaction condition relevant to time, temperature, solvent, reactant density etc. in synthetic context, can change reaction condition so that the useful quantity of product or the output of product to be provided, this is in the scope of the experimenter's of this area common skill.Be, needed product is for being only that product or parent material are consumed completely with there is no need, and the needed product providing can separated or otherwise further use.
Should be understood that, ratio, concentration, amount or other data can be explained with the form of a scope here.It should be understood that using this range format is for convenience and simplicity.And therefore, should explain not only to comprise the data parameters clearly stating as the end points of scope in mode flexibly, and if each numerical value and subrange comprise " approximately ' X ' is to about ' Y ' ", also comprise all individual data parameters or be included in the subrange in described scope.In order to illustrate, the concentration range of " approximately 0.1% to approximately 5% " should be interpreted as, not only comprise that clearly approximately 0.1 % by weight of explanation is to the concentration of approximately 5 % by weight, be also included within single concentration in illustrated scope (for example 1%, 2%, 3% and 4%) and subrange (for example 0.5%, 1.1%, 2.2%, 3.3% and 4.4%).In one embodiment, term " about " can comprise according to the tradition of the significant digits of data parameters and rounding off.In addition, phrase " approximately ' X ' is to ' Y ' " comprises " approximately ' X ' arrives approximately ' Y ' ".
Here the term " about " that used, in the time relating to data parameters or scope, it allows the variation to a certain degree in certain numerical value or scope, for example the end points of explained numerical value or the scope explained 10% in or variation in 5% on the other hand.
In addition, with enumerate or the mode of Ma Kushi group describe feature of the present utility model or aspect place, person of skill in the art will appreciate that, therefore also according to any single key element of the key element of Ma Kushi group or subbase group, the utility model has been described.For example, if X is described to select the group of free bromine, chlorine and iodine composition, as enumerated separately, claim and X that to have described X be completely bromine are the claim of bromine and chlorine.For example, feature of the present utility model or aspect according to this place of describing of enumerating, person of skill in the art will appreciate that, therefore also according to any combination of any single key element of the key element of Ma Kushi group or subbase group, the disclosure has been described.Therefore, if X is described to select the group of free bromine, chlorine and iodine composition, and Y is described to select the group of free methyl, ethyl and propyl group composition, describes completely and supported that X is the claim that bromine and Y are methyl.
As used herein, all constituent contents provide with the form of percentage by weight, unless otherwise stated.In the time relating to component solution, percentage refers to the percentage by weight of the component that comprises solvent (for example water), except as otherwise noted.
As used herein, the molecular weight of all polymer (Mw) is weight average molecular weight, except as otherwise noted.
In the time reading the disclosure, it will be evident to one skilled in the art that, here each independent embodiment of describing and illustrate has independently parts and feature, these independently parts and feature be easy to any character separation of other several embodiments or in conjunction with and do not deviate from scope of the present utility model or spirit.Any described step can described situation order implement or implement with the order of feasible any other in logic.
Conventionally, a kind of device for the manufacture of polyamide granules can comprise HIGH PRESSURE TREATMENT container, cutter and process controller.Described HIGH PRESSURE TREATMENT container can comprise pressure controller (for example import, heating component, discharge valve) and extrude valve.Described cutter can be configured to cut the polyamide polymer of extruding from HIGH PRESSURE TREATMENT container to form polyamide granules.Described process controller can comprise for the pressure control module of controlled pressure controller, for controlling the cutting speed module of cutting speed, for controlling the valve module of extruding of extruding valve, and for calculating the output module of casting output.
In another embodiment, the casting device that is used for the casting output of predicting the polyamide polymer of extruding can comprise flow and temperature measuring tool, for measure the casting water (conventionally from two or more positions) that flows into casting device amount, measure the casting water flowing into temperature, measure the casting water flowing out temperature, calculate the heat transmission between casting water and the casting water of outflow flowing into, and for by heat transmission with cast the associated associated tool of output.
In another embodiment, can comprise cutting tool for the production of the device of the particle of polyamide polymer, for the polyamide polymer bar of extruding to the proportional cutting speed cutting of output of polyamide polymer with essence.Described device also can further comprise the adjustment instrument for adjusting the first technological parameter.The optional free cutting speed of described the first technological parameter, extrude valve opening, and the group of container pressure composition, and can adjust in response to the second alternative technological parameter, to maintain the homogeneity of polyamide granules, wherein as said, output is calculated with casting output, the optional free cutting speed of described the second technological parameter, extrudes the group of valve opening and container pressure composition.
It should be noted that each of these discussion can be considered to be applied in each embodiment, no matter whether it came into question clearly in the context of this embodiment in the time that device of the present utility model is discussed.Therefore, for example, in the time discussing about the polyamide polymer of a device, these are discussed and also can be used in other devices, and vice versa.
Turn back to now device of the present utility model, generally, can in the paradigmatic system that comprises polyamide, use the utility model manufacture method, casting method, device etc.In one embodiment, polyamide polymer can comprise, is substantially made up of nylon 6,6, or is made up of nylon 6,6.Nylon 6,6 can be straight polymer, or also can be modified by the additive of any amount, and described additive comprises fluorescent whitening agent, dyestuff etc.Usually, the manufacture method relating in the utility model can comprise continuous method and batch method, except as otherwise noted.These methods are carried out conventionally in reaction vessel, for example autoclave.In one embodiment, manufacture method can be a batch method.There is no particular limitation, and as described in the utility model, this batch of method is generally 5 periodic methods.
Particularly with reference to nylon 6,6, can in multiple embodiment, be from about 1000Kg to about 2600Kg according to the typical batch of production scale of embodiment of the present utility model, or from 1000Kg to 1500Kg, or from 1300 to 2600Kg, and can be at a batch production period, in autoclave, circulate approximately 90 to 150 minutes, or 100 to 120 minutes.Also can use batch production scale and time beyond the above-mentioned scope, this depends on the selection of equipment and polymer, or other Considerations in those skilled in the technology concerned's ken.Generally, the salt that can be used as of the nylon of polyamide adds.In one embodiment, nylon can be nylon 6,6 salt, and amount in can the scope of approximately 50 % by weight to 95 % by weight is present in polyamide.
In the polymerization of polyamide of the present utility model, can use kinds of processes parameter, comprise temperature and pressure.In one embodiment, temperature can be in the scope of approximately 190 DEG C to approximately 290 DEG C, and spontaneous pressure or other pressure during some cycle can be at approximately 250 pound per square inch absolute values (psia) to the scope of approximately 300 pound per square inch absolute values (psia).In addition, in another embodiment, during some cycle, can under the vacuum condition of pressure that is less than 10torr, heat.
Generally, can realize by autoclave and extrude/casting process for the production of the method for the present utility model of polyamide granules.In one embodiment, described method can or for example, start from the polyamide solution that provides the aqueous solution of the polyamide salt (nylon 6,6 salt) to high pressure container handling to prepare by concentrated slurry.Optionally, can dilute described slurry and become more concentrated by evaporation step.In one embodiment, can, according to the known method of prior art, prepare slurry from the aqueous solution of monomer hexamethylene diamine and adipic acid.In another concrete embodiment, in the time that nylon 6,6 monomer solutions are the form of caprolactam water solution, described slurry can contain a small amount of nylon 6 monomers.In one embodiment, HIGH PRESSURE TREATMENT container can be heated to subsequently approximately 230 DEG C (or other function temperature) and make inner spontaneous pressure rise.Optionally by delustering agent, titanium dioxide (TiO
2) inject autoclave and as the monomer mixture of water-borne dispersions.
Polyamide solution or multiviscosisty slurry mix can be heated to approximately 245 DEG C (or some other function temperature) subsequently in autoclave.When in this temperature, the pressure of autoclave can be reduced to atmospheric pressure, and by further reducing pressure by vacuum in a known way, to form daiamid composition.The described autoclave that maintenance contains daiamid composition under this temperature and/or pressure approximately 30 minutes.For example then this step is further heated to polyamide polymer composition approximately 285 DEG C, and drying nitrogen is introduced to HIGH PRESSURE TREATMENT container in autoclave, and by introducing drying nitrogen to approximately 4 to the absolute pressure of the about 5bar described autoclave that pressurizes.
After polymerization, can carry out polyamide extruded polymer to produce polyamide granules by casting process.Usually, casting output is the parameter of this casting technique, and is used in the production of polyamide granules and adjusts Castingother technological parameter.As discussed herein, the invention provides the method for real-time estimate casting output.The prediction of this casting output can be used for adjusting other granulating technological parameters so that the homogeneity of particle to be provided, and is difficult to realize before the homogeneity of described particle for polyamide autoclave casting technique.Usually, calculate instantaneous casting output with heat transfer model, described heat transfer model has used temperature and the flow velocity of the measurement of casting water.In an embodiment of the present invention, show and described multiple heat transfer model, but for example should be understood that, in every kind of form (formula I-III), can use same balance.Useful positive number or negative are adjusted constant.Understand these, in one embodiment, can calculate casting output (TP) with the heat transfer model as shown in formula I:
TP=TP model+TP deviation (I)
Wherein, TP deviation, based on container, calculates TP model from formula II:
TP model=(flowing into temperature-outflow temperature-a-(b* stream 1)-(c* stream 2))/d (II)
Wherein,
Flow into the temperature of the measurement of the casting water of temperature=enter
Flow out the temperature of the measurement of the casting water of temperature=go out
Stream 1=enters the flow velocity of the measurement of the casting water of primary importance (for example, water slide); And
Stream 2=enters the temperature of the measurement of the water of the second place (for example, cutter), and wherein a, b, c and d are the independently constant that depends on bank (bank).
In general, flowing into temperature is equivalent to and the temperature that flowed into the water of casting technique before contacting the polymer of extruding.After the polymer that described outflow temperature is generally equivalent to extrude in contact, leave the temperature of the water of casting operation.So, these casting coolant-temperature gages can be used for calculating the polymer of extruding to the heat transmission of casting water.In general, a, b, c and d, for specific casting device, can obtain by experiment.The temperature control of casting water flowing into is in 5 DEG C, in 2 DEG C, in 1 DEG C or in 0.5 DEG C.The temperature of the casting water of flow process is owing to contacting and improving with the polymer of extruding.As described herein, TP model calculates output by this temperature difference.This TP model can allow to cast the accurate and consistent prediction of output.
In an alternative but relevant embodiment, during granulating, can calculate described casting output with similar energy balance model.Described model described herein can use current, two kinds of temperature (coolant-temperature gage in the coolant-temperature gage entering and drier downstream) of two kinds of measurements, and a series of constant.In this embodiment, casting output (TP) model shows in formula III:
TP=(P1-P2-C4*P3-C2*P4)/C3+P5 （Ⅲ）
Wherein,
The temperature of the measurement of the casting water in P1=drier downstream
The temperature of the measurement of the casting water that P2=enters
The casting current 1 that P3=measures
The casting current 2 that P4=measures
P5=constant, and
The coefficient of C1-C4=current and/or other processes.
For an embodiment for a particular system is provided, constant/coefficient can be P5=-0.76213, C1=-0.6105, C2=-0.88531, C3=3.63958, C4=27.7428.These are by the mode of embodiment, specific device to be provided, and are construed as in no instance restrictive.Those skilled in the art can derive these constant/coefficients to particular condition or device.
In another embodiment, in order to obtain the accurate relation between output and state-variable, can test, wherein determine a set of technique initialization for stream 1, stream 2 and output, then also determined that this has provided TP as X to the temperature difference of the measurement between the cooling water that adds and flow out of all these predetermined settings, temperature rise, as the model of Y, causes relation (flowing out temperature-inflow temperature)=C4+C3* output+C1* stream 1*C2* stream 2.Because output is in X variable in this relation, described formula can be rearranged to obtain output as Y.Therefore, in another embodiment, TP=-7.6225+0.27476* (flowing out temperature-inflow temperature)+0.1677* stream 1+0.24325* stream 2.It should be noted that this is an alternative version of formula I.
In the further details about formula I, as understood by the skilled person in the art, can calculate TP deviation.But in one embodiment, the coordination of yield model can realize by adjusting deviation, described deviation is to use for example following formula to calculate from the difference between raw material batch weight and comprehensive output batch weight:
Polyamide polymer described in the utility model also can be prepared with catalyst.In one embodiment, in polyamide, can there is 10ppm(weight) to 1000ppm(weight) catalyst of amount in scope.On the other hand, catalyst can 10ppm(weight) to 100ppm(weight) amount in scope exists.Not do not limit, the salt that catalyst can comprise phosphoric acid, phosphorous acid, hypophosphoric acid, arylphosphonic acid, arylphosphinic acid, these compounds with and composition thereof.In one embodiment, catalyst is sodium hypophosphite, manganese hypophosphite, phenyl sodium phosphite, phosphenylic acid sodium, phenyl potassium phosphite, phosphenylic acid potassium, diphenyl phosphorous acid hexamethylene diamine salt, tolyl potassium phosphite or its mixture.On the one hand, catalyst can be sodium hypophosphite.
Can improve according to the outward appearance whiteness of the disclosed polyamide of embodiment of the present utility model and daiamid composition by adding fluorescent whitening agent.These polyamide can show permanent whiteness and improve, and can be by keep this whiteness to improve as the operation of thermal finalization.In one embodiment, in polyamide, can there is the fluorescent whitening agent of the amount in the scope of 0.01 % by weight to 1 % by weight.On the one hand, fluorescent whitening agent can be titanium dioxide.
In addition, can prepare these polyamide polymers with antioxidative stabilizer, antibacterial additives etc.In addition, can prepare polyamide polymer with antigassing additive.In one embodiment, in polyamide, can there is 1ppm(weight) to 500ppm(weight) scope in the antigassing additive of amount.
Be born acid dyeable according to the disclosed polyamide polymer of embodiment of the present utility model, but also can come these polymer of modification or copolymer by the copolymerization dye of positive ion in polymer, and convert it into basic dyeing form.These modifications make composition accept especially the dyeing with basic-dyeable fibre.
Forward now Figure 1A and 1B to, it has shown the cross sectional representation of two exemplary agitated autoclave.These figure are unnecessary to be drawn in proportion, and does not show each and all details common in agitated autoclave, but selects optionally to have shown schematically showing of the feature relevant especially to the utility model.Therefore, in the present embodiment, agitated autoclave 10 can comprise HIGH PRESSURE TREATMENT container 20 and agitator or spiral 22.Although shown agitator and spiral, it is dispensable.Described container comprises chamber wall 24, it typically is electroplating container wall, and described chamber wall and/or other structures is set to support heating component 26a and the 26b of one or more types.In the present embodiment, 26a has shown external jacket heating component, and 26b has shown inner heating component.It should be noted that the heating component in Figure 1A is placed in relatively close agitator place, this is more typical; And heating component in Figure 1B is placed in more close chamber wall place, this can be more typical for non-agitating type autoclave.But, as described in, the position of heating element heater can lead to those skilled in the art consider the utility model afterwards determine.In another embodiment, all can there is heating element heater two positions, near chamber wall with near agitator.
External jacket heating component 26a can be used for the raising polymerizable components that contains in container or the temperature of polymer, be attached to the inner surface of chamber wall and/or agitator and inner heating component 26b especially can be used for stoping polymer to become.As shown in Figure 1A, except having shown inner heating component, also have a pair of renewal rod (refresher bars), it works with novel polymer more together with central stirrer or spiral 22.Agitator work to be so that polymer is moved up along core, and in the time stirring the polymer of fusing, excellent by upgrade the polymer of fusing from sidewall surfaces removing polymer with described a pair of renewal.The heat transfer of this set in can improvement system, and can reduce the height of the eddy current being caused by agitator.In any situation, although all it should be noted that schematically shown inner heating component on sectional view, it will be appreciated that the inside heating component that can use any shape or structure.It is also to be noted that described heating component can be constructed or be arranged to portability any fluid of the prior art (comprising gas and/or liquid), is used to autoclave that heat is provided.Also shown imported valve 28 and autoclave air vent 30, and described imported valve 28 and autoclave air vent 30 can be used as pressure controller and use or use separately (with heating component 26a together with 26b, it also can controlled pressure) together with coming.Do not show pressue device or pressure source, still will be understood that in the time wanting impressed pressure and can have described pressue device or pressure source.Or, intelligible as this area, can increase pressure by adding heat, and by the emptying pressure that reduces.Further, the bottom of HIGH PRESSURE TREATMENT container is valve openings 32.This figure do not show and extrudes valve, but this to be the polymer prepared in autoclave be extruded for the further position of processing.It should be noted that as will be understood by the skilled person in the art, regardless of the description of these imports, valve, air vent etc. and the position of demonstration, compared with shown, can use these or other port, for any object of user design differently.It is also to be noted that, provide this exemplary HIGH PRESSURE TREATMENT container that forms polyamide polymer in autoclave and step only for exemplary object, as producing polyamide polymer with other technical process, autoclave and additive of any amount.No matter how polymer is prepared in autoclave, this point in the method for describing is generally main purpose of the present utility model, casts the polymer from aggregation container, and prediction casting output.
As described in the utility model, the utility model provides the polyamide polymer of extruding by cutting and has adjusted kinds of processes parameter the device that forms the particle of polyamide polymer.Especially, the utility model allows to regulate the first technological parameter in response to the change of above-mentioned other a kind of technological parameter for the production of the device of polyamide granules, and described the first technological parameter comprises cutting speed, extrudes valve opening and container pressure.In addition, on the one hand, can adjust two technological parameters in response to the 3rd technological parameter.In one embodiment, although adjustable any technological parameter or two technological parameters, the technological parameter being conditioned can be or can comprise container pressure.On the other hand, the technological parameter being conditioned can be maybe can comprise and extrude valve opening.On the other hand, the technological parameter being conditioned can be maybe to comprise cutting speed.Can adjust these technological parameters to maintain the homogeneity of polyamide granules based on casting output, wherein can predict casting output according to the utility model.
Forward now Fig. 2 to, device for the manufacture of polyamide granules can comprise container 20, as being similar to the autoclave as shown in Fig. 1, described container 20 comprises pressure controller (it can be the form of inlet line/valve 28, discharge pipe/valve 30 and/or heating component 26).Although it should be noted that the heating component that has shown external jacket, can replace with or increase inner heating component.Also show and extruded valve 34 for what polymer was extruded to structure extrudes by Die and mould plate or other.Described device also can comprise cutter 36, and described cutter is configured to have the cutting speed that is applicable to cutting polyamide granules.For example, described cutter can be revolution cutter, and it is configured to cut very fast during by it when the polymer being extruded.Described device also can comprise process controller 60, and it can comprise pressure control module 70, cutting speed module 80 and extrude valve module 90.Described device also can comprise plate 38, slurry collection equipment 40, slurry pipeline 42 and drier/circulator 44.
In the further description of the process controller 60 about described device, can automatically implement with multiple module 70,80,90,100 general utility functions or the processing step of automation equipment.For example, can come controlled pressure valve 28, autoclave ventilating opening 30 and heating component 26 by pressure control unit 70, with the adjusting of authorized pressure.Can control cutter 36 by cutting speed module 80.Can control and extrude valve 34 by extruding valve module 90.Useful measurement module 100 calculates the casting output of prediction.Other module (not shown)s that can exist, include but not limited to agitator module, drier module, heating component module etc.Described module can be worked simultaneously, provides automated system in the mode of the polyamide granules that causes homogeneous.
Fig. 3 has set forth the figure of explanation embodiment, and in an embodiment, these modules are worked simultaneously and realized the remarkable homogeneity according to embodiment of the present utility model.Particularly, Fig. 3 has illustrated the casting figure according to the technological parameter of the device of embodiment of the present utility model.Particularly, this figure provides during casting as the autoclave pressure of passing through single batch casting method of the function of time, from the output of the polyamide polymer of autoclave, has linearizingly extruded valve figure, and cutting speed.As shown in the figure, regulate kinds of processes parameter that substantially invariable output is provided under high cutting speed, and the automatic mode that also keeps high throughput rate when can keeping particle homogeneity is provided thus.
In the chart of Fig. 3, also should be noted that and changed cutting speed, and cutting speed and output is substantially proportional,, when output rises or decline (as shown in the chart), cutting speed rises equally respectively and declines.Because term " substantially " relates to output or relative coupling proportional with cutting speed, it may be defined as any matching degree, under this matching degree, the average quality of a collection of particle of homogeneous is that to have the Individual Quality of at least 95% individual particles be described average quality to described a collection of particle in 10%.To the relatively moving of output, can keep homogeneity by basic coupling cutting speed.As a result, pressure controller has kept output in rational scope with the use of extruding valve, for realizing effective sectility face.For example, in the efficient system of the high yield providing in the pressure by applicable and linear valve aperture, cutting speed can be carried out to relative coupling with output.Should notice that cutting speed also rises in the time that output rises.
Turn back to Fig. 2, as described in the utility model, the pressure of container 20 can be spontaneous, or can generate from external pressure source.In addition, can working pressure source (not shown) and pressure valve 28 and/or air vent 30 regulate pressure.Extrude valve 34 general control apertures, polyamide polymer is extruded from described aperture.In some respects, extrude valve opening and can be called as the linear aperture of extruding valve." linearity " used herein refers to the opening (opening region) that is equivalent to described valve than the mathematic(al) manipulation of the percentage of the material of extruding by opening.For example, " linearity " aperture of 50% refers to from 100%(100% and refers to the heap(ed) capacity while opening valve completely) total amount in extrude 50% material from opening, even if valve opening (opening region) the obtained aperture that may not be 50%.It should be noted that when valve and do not set and approach 100% while opening, have the control of the output of more polyamide polymer far away.In the time of valve proximity 70% or 80% aperture, the control of output is significantly reduced.For example, the aperture of valve is changed to 50% pair of output from 40% and there is relatively significant effect, there is very little effect and valve is reached to 90% pair of output from 80%.Therefore, it is desirable to keep valve as far as possible in the scope of approximately 30% to 70% aperture, and more typically during polymer casting process, remain in 35% to 60% scope.In order to complete this target, can change pressure and/or cutting speed and keep valve opening in the preferred range.Although described these, these are not what be strict with.This has been to provide a kind of mechanism, to keep the maximum flexibility about the aperture of squeezing valve.
Be back to the multiple adjusting of technological parameter, can carry out in response to the variation of other technological parameters the adjusting of described kinds of processes parameter, should be noted that the adjusting of technological parameter can be carried out successively or simultaneously (or carrying out successively) within the overlapping time.In one embodiment, can regulate more than one technological parameter in response to the variation of the 3rd technological parameter.In order to provide embodiment to illustrate that why these technological parameters can benefit from change, once should be noted that from HIGH PRESSURE TREATMENT container and start extrusion, the polyamide polymer conventionally wherein containing does not also finish its polymerization process completely.Therefore, polyamide polymer can continue further multiviscosisty during extrusion.Have been found that under this condition and can not keep simply output and prior particle homogeneity by independent increase pressure.Similarly, only further open the polymer of extruding valve 34 and also can always not make up fully multiviscosisty.In addition,, even by controlling together two in these parameters, adjust cutting speed if not the variation based on output, the homogeneity of polyamide granules also can suffer damage.
Therefore, device of the present utility model comprises by the pressure, the valve opening of variation and the cutting speed of variation that change controls productive rate, and therefore controls particle homogeneity, realizes the particle of homogeneous with effective means.Therefore, in a specific embodiment, exemplary output can be in the scope of 2 to 10 tphs or 5 to 9 tphs, or more particularly, 6 to 8 tphs.Exemplary pressure during extruding can be at 0 to 12 bar, 1 to 10 bar, or in the scope of 5 to 10 bar.Exemplary valve opening level can be in 30% to 70% scope, or in 45% to 65% scope.Use the exemplary cutting speed of helical cutters or other similar rotary cutters in 100 to 2000RPM scope, 400 to 1800RPM, or in 600 to 1500RPM scope.Conventionally, during casting, these technological parameters are remained within the scope of these, and by adjust described parameter within the scope of these, can realize the homogeneity of polyamide granules.Although stated above-mentioned these, also can use the technological parameter beyond these scopes, as long as can keep as particle homogeneity described in the utility model.
Can control output by extruding valve 34 apertures at least in part, can control cutting speed by cutter 36, and can carry out controlled pressure by one or more pressure controllers 26,28,30 and control output.Although exceeding a technological parameter adjustable provides polyamide granules, and in a concrete embodiment, pressure and/or cutting speed can allow operation in linear aperture is 30% to 70%, 35 to 65% or 40% to 60% scope to extrude valve.In addition, for desirable efficiency is provided, in one embodiment, in large system, output can be at least 5 tons/hour, or at least 7 tons/hours, and adjusting process parameter can maintain in the scope of target output in 10 quality % and changes.
Process controller 60 is generally connected with cutter 36 and container network by computer, other computing equipments or other network equipments.Device of the present utility model can be the automatics that uses multiple module.In one embodiment, in response to cutting speed or the change of extruding the aperture of valve 34, pressure control module 70 capable of regulating pressure controllers 26,28 and/or 30.On the one hand, in response to cutting speed and the change of aperture of extruding valve, pressure control module capable of regulating pressure controller.In another embodiment, in response to pressure or the change of extruding the aperture of valve, the cutting speed of cutting speed module 80 capable of regulating cutters 36.On the one hand, in response to pressure and the change of aperture of extruding valve, cutting speed module capable of regulating cutting speed.In another embodiment, in response to the change of cutting speed or pressure, extrude valve module capable of regulating and extrude valve.On the one hand, in response to the change of cutting speed and pressure, extrude valve module capable of regulating and extrude valve.In another embodiment, described output module 100 can flow velocity and temperature based on casting water be calculated casting output.Similarly, module of the present utility model can be worked through process controller simultaneously, during casting, carrys out adjusting process parameter in the mode of the polyamide granules that is enough to provide polyamide granules, especially consistent and homogeneous.
As further instruction, in order more specifically to emphasize the independence of its enforcement, some functional units of describing in this description are called as " module ".For example " module " can be to implement as hardware circuit, described hardware circuit comprises the semiconductor can be purchased off the shelf, transistor or other discrete elements of super large-scale integration (Very Large Scale Integration, the VLSI) circuit of customization or grid array, for example logic chip.Module can also be implemented on programmable hardware device, described programmable hardware device such as field-programmable grid array, programmable logic array, PLD etc.Module also can implemented for the software of carrying out by polytype processor.The module of the identification of executable code for example can comprise one or more blocks of computer instructions, and it can be used as object, program or function and organize.But the executable code of the module of identification does not need physically together, but can comprise the different instruction that is stored in diverse location, described diverse location comprises module, and in the time that logic links together, realizes the above-mentioned object for module.
In fact, the module of executable code can be single instruction or a lot of instruction, and is even distributed in several different code fragments, between distinct program and cross over several memory devices.Similarly, in module, can and described operating data be described in this identification, and can any suitable form embody operating data, and organize described operating data by the data structure of adequate types.Can individual data set collect operating data, or can be in different position distribution operating datas, described different position comprises different storage device.Described module can be passiveness or positive, comprises the medium that can operate to carry out required function.
Embodiment
The coordination of embodiment 1-yield model
The coordination of yield model completes with following variable:
The batch weight of the prediction that batch weight 1=calculates from the raw material of all interpolations of this batch
The comprehensive output of batch weight 2=, calculate as follows:
The coordination of yield model completes by adjusting deviation, and described deviation is to calculate by the difference between raw material batch weight and comprehensive output batch weight and by following computational methods:
The embodiment 2-time is compared batch weight
Fig. 4 shown for a kind of specific autoclave time recently from the trend of the batch weight of comprehensive output, described specific autoclave is for a series of batches of productions of specific aggregation species.Each vertical dotted line represents the beginning of the type of polymer of a new round.Especially, for the combination of this autoclave-type of polymer, each new round is usually initial with " too high " output batch weight, and it has triggered DCS and has carried out round-off error to upgrade TP deviation.This error in output batch weight can be caused by polymer property.
Although, with for architectural feature and/or the theme of the present utility model that operated specific language description, it should be understood that, the theme being limited by the accompanying claims is not necessarily limited to specific feature as described above and operation.But above-described specific feature and action are disclosed as the exemplary form implementing the claims.Can carry out multiple improvement and substituting setting and not depart from the spirit and scope of described technology.
Claims (6)
1. for the production of a casting device for polyamide granules, comprising:
Container, described container comprises:
Pressure controller, and
Extrude valve;
There is the cutter of cutting speed; And
Process controller, described process controller comprises:
Pressure control module, for controlled pressure controller,
Extrude valve module, extrude valve for controlling
Cutting speed module, for controlling cutting speed; And
Output module, for determining casting output,
Wherein, the temperature of the temperature of the amount of the casting water of output module (i) based on flowing into from two or more positions, the casting water of inflow, the casting water of outflow is calculated the heat transmission between the casting water that flow into the casting water of casting device and flow out described device, and (ii) that heat transmission is associated with casting output.
2. casting device according to claim 1, is characterized in that, configures described device and manufacture with the bar of the nylon 6,6 extruded by cutting the particle of the homogeneous of nylon 6,6 in batches.
3. casting device according to claim 1, is characterized in that, described container is non-agitated autoclave.
4. casting device according to claim 1, is characterized in that, described container is agitated autoclave.
5. casting device according to claim 1, is characterized in that, described process controller carrys out network by computer and is connected in described cutter and described container.
6. casting device according to claim 1, is characterized in that, described pressure controller comprises one or more discharge valves, imported valve or heating component.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361818259P | 2013-05-01 | 2013-05-01 | |
| US61/818,259 | 2013-05-01 |
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| CN203973821U true CN203973821U (en) | 2014-12-03 |
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|---|---|---|---|---|
| CN104129023A (en) * | 2013-05-01 | 2014-11-05 | 英威达科技公司 | Measuring molten polymer throughput using heat transfer balance |
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2014
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| CN104129023A (en) * | 2013-05-01 | 2014-11-05 | 英威达科技公司 | Measuring molten polymer throughput using heat transfer balance |
| CN104129023B (en) * | 2013-05-01 | 2017-11-17 | 英威达纺织（英国）有限公司 | Molten polymer yield is measured using heat transfer balance |
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