CN101914269A - Preparation and inspection method for regenerated polyester filament-grade bottle chips - Google Patents
Preparation and inspection method for regenerated polyester filament-grade bottle chips Download PDFInfo
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- CN101914269A CN101914269A CN2010102186986A CN201010218698A CN101914269A CN 101914269 A CN101914269 A CN 101914269A CN 2010102186986 A CN2010102186986 A CN 2010102186986A CN 201010218698 A CN201010218698 A CN 201010218698A CN 101914269 A CN101914269 A CN 101914269A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention relates to a preparation and inspection method for regenerated polyester filament-grade bottle chips and belongs to the technical field of chemical industry. The method comprises the processes of: preparing the raw materials, which are bottle bricks, of the bottle chip; heating the whole bottle brick to clean the bottle brick and removing labels on the bottle bricks; sorting the bottles according to quality, namely sorting out PVC bottles, sundries bottles, colored bottles and oil bottles; crushing the bottles; sorting the crushed bottle through flotation according to specific gravity; raising the temperature to clean and rubbing to rinse the crushed bottle; dehydrating and drying the crushed bottle; and packing and storing the crushed bottle. The method has the advantages of reasonable technique and design, good sorting effect, reasonable grading and stable quality of the obtained bottle chips.
Description
Technical field
The present invention relates to a kind of making and the method for inspection of regenerated polyester filament-grade bottle chips, belong to chemical technology field.
Background technology
Existing recycled polyester material all is used for producing the product of staple fibre or non-fibre-grade basically, and for example number of patent application is 02118799.1 a kind of method of utilizing recycled polyester production hollow core staple fibers of announcing.But present recycled polyester material still can not replace primary polyester and make the macrofiber product, and a very big bottleneck just is that the screening process of raw material regenerative polyester bottle sheet stock is not mature enough, does not have standard.Because, be not all alternative primary polyester of all recycled polyesters, under the situation that does not have long filament level recycled polyester production method and the method for inspection and standard, quality to the characteristic bottle sheet of bottle matter, difference is difficult to be distinguished, to containing the moisture ashes of impurity powder in the bottle sheet, standard that bottle sheet sheet is unusual and quantity are difficult to control and grasp, often cause quality to use with, various foreign matter contents do not have standard-required, badly influence the melt-spinning of recycled polyester and the high-end product that road, back processing quality can't be produced recycled polyester, so the sophisticated bottle sheet production method and the bottle tablet quality method of inspection and bottle tablet quality standard must be arranged, could correctly distinguish recycled polyester classification and deciding grade and level, because the bottle matter of regenerative piece of polyester bottle is widely different, how to carry out that bottle sheet classification grades and the production process of bottle chips is effectively controlled, i.e. the production method and the method for inspection and standard, also being technical very strong work in the recycled polyester use, is a unsolved difficult problem in the prior art.
Summary of the invention
Technical problem to be solved by this invention provides the making and the method for inspection of the stay-in-grade regenerated polyester filament-grade bottle chips of bottle chips that a kind of technological design is reasonable, selection is effective, classification reasonable, obtain
The present invention solves the problems of the technologies described above the making and the method for inspection that the technical scheme that is adopted is this regenerated polyester filament-grade bottle chips, it is characterized in that: described making and checking procedure are:
A, the regenerative polyester bottle brick promoted be transported to the conveying belt top and cut off strap, a bottle brick is transported to wash bottle operation section by conveying belt;
B, untie sheet bottle brick, add scavenging solution, the bottle brick is cleaned by whole bottle, keep water temperature at 80 ℃--90 ℃, silt in the polyester bottle slice, impurity etc. are carried out the preliminary washing of appearance, and preliminary part P E trade mark, paper label and the gluing matter PVC label of part that remains on the polyester bottles of removing;
C, the whole bottle of bottle brick process are heated behind the previous cleaning, the variable color of PVC bottle, the PVC bottle becomes milky white dim or orange yellow, carry out the manual sorting then, pick out assorted bottle, look bottle, oil bottle in PVC bottle, the PET bottle, further also need pick simultaneously discharging garbage, foreign material, label bits, sort out respectively then, select cleaner PET bottle and enter next procedure;
D, the PET bottle of selecting is pulverized with the method for case of wet attrition;
E, the bottle sheet that will pulverize float and wash, and floating temperature of washing is that 85-95 ℃ simultaneously that difference of specific gravity is bigger bottle cap PET sorts out;
F, with 80 ℃--90 ℃ hot water heat cleaning, friction rinsing, the bottle sheet after will purifying then dewaters under the effect of whizzer, again through circulating drying plant the water ratio of bottle sheet is dropped to≤1%, obtain regenerated polyester filament-grade bottle chips;
G, will obtain regenerated polyester filament-grade bottle chips and carry out sampling Detection, test item has 9, and the standard of every detection is: limiting viscosity: dlg 0.75 ± 0.12; Melting temperature: b/ ℃ 255 ± 5; Water ratio :≤0.81.0; PVC content: 0---60PPM; Content of powder: 0-60PPM; Colourity: by ash card sample 4 grade standards, the degree of range estimation from white to Huang; Impurity: 0---30PPM; Metal content: 030PPM; Bottle sheet particle diameter: 10mm 12mm;
H, carry out the weighing measurement warehouse-in, non-compliantly reduce to short fiber level and non-fibre-grade, thereby finish the making and the check of regenerated polyester filament-grade bottle chips checking standard compliant bottle sheet.
As preferably, among the step h of the present invention, the concrete grammar of detection is: quantity of sampling quantity is every batch 400 gram, and every batch of sampling is no less than two parts, and limiting viscosity adopts the automatic viscosity determinator of NCY to detect; Melting temperature adopts WRX---the micro-thermal analyzer of IS; Water ratio adopts the vacuum oven oven drying method; PVC content adopts the heating, drying proportional analysis approach; Content of powder adopts vibratory screening apparatus, and screening quantizes proportional analysis approach; Colourity, range estimation is from pressing ash card sample to the viscosity of Huang in vain; Impurity: range estimation, refer to arrange the PET foreign material, row chooses proportional analysis approach; Metal content adopts magnet to absorb range estimation, proportional analysis approach; Bottle sheet particle diameter, the dipstick metering range estimation.
As preferably, in the steps d of the present invention, be crushed into sheet particle diameter 〉=12mm ∠ 5%.
As preferably, among the step b of the present invention, scavenging solution adopts 0.04% sodium hydroxide solution.
The present invention compares with existing technology, has the following advantages and characteristics:
1, the making of the present invention and the method for inspection have realized the production method time variable control, and the bottle tablet quality is carried out grading and classification, and the bottle sheet that does not reach the long filament level can be produced staple fibre, and the bottle sheet that is lower than the staple fibre level can be produced other recycled polyester product (non-fibre-grade).The mass discrepancy of regenerative piece of polyester bottle has obtained the objective affirmation that certificate arranged and has reached each and need required.
2, the invention provides the sophisticated bottle sheet production method and the bottle tablet quality method of inspection and bottle tablet quality standard, can correctly distinguish recycled polyester classification and deciding grade and level, can realize that bottle sheet classification grades and the production process of bottle chips is effectively controlled, be the production method and the method for inspection and standard, allow different regenerative polyester bottle matter produce different recycled polyester products, the resource of recycled polyester and added value are further promoted.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment 1:
Present embodiment relates to a kind of making and method of inspection of regenerated polyester filament-grade bottle chips, and concrete steps are as follows:
Production process:
The lifting of regenerative polyester bottle brick is transported to the conveying belt top cuts off strap, a bottle brick is transported to wash bottle operation section by conveying belt.Untie sheet bottle brick, the bottle brick is cleaned by the processing requirement that whole bottle cleans.
Whole bottle matting is carried out the preliminary washing of appearance to the silt in the polyester bottle slice, impurity etc., in the previous cleaning process, can remove the part PE trade mark that remains on the polyester bottles, low label and the gluing matter PVC label of part etc., it is to make the physical condition of PVC bottle and the state generation difference and the variation of PET bottle be convenient to pick out the PVC bottle after the identification through the heating previous cleaning that this operation is more attached most importance to, and partly label also comes off immediately.(whole previous cleaning flow process comprise the concentration of water temp and scavenging solution control by processing sequence) by computer.The clean-out system that adopts is 0.04% sodium hydroxide solution.
Letter sorting: PVC bottle variable color behind whole bottle of previous cleaning of heating of bottle brick process, assorted bottle, look bottle, oil bottle that this operation will be picked out in the PVC bottle PET bottle are sorted out respectively, also need pick discharging garbage, foreign material, label bits etc., guarantee that cleaner PET bottle enters next procedure, similar fine bottle is sorted out, be long filament level recycled polyester, holding bottle matter first pass is the key of guaranteeing long filament level recycled polyester quality.
The bottle material divides pure, the filament-grade bottle material of picking classification is adopted the case of wet attrition method, whole bottle is crushed into sheet particle diameter 〉=12mm ∠ 5%, and the heat that the effect that the case of wet attrition method can utilize the surging force of water to strengthen the cleaning of PET fragment utilizes the cooling effect reduction friction of water to be produced reduces chip and the ashes of PET.
Floating washing; A bottle sheet of pulverizing float washes, this operation reaches the pre-washing and the bottle sheet gravity separation of fragment, and the bottle cap PET bigger difference of specific gravity sorts out, the difference use.
Heat cleaning, friction rinsing: this operation is the important step that bottle sheet cleans, the various dirt foreign material that have in all bottle sheets are all effectively removed in this project operation, be also referred to as the final purification operation of bottle chips, the effect that it utilizes heating power chemical force and mechanical force with bottle sheet final purification to the every standard-required that meets long filament level regenerative piece of polyester bottle.
Dewatered drying: the bottle sheet after this operation will purify dewaters under the effect of whizzer, pass through circulating drying plant again the water ratio of bottle sheet is dropped to≤1%.
Sampling inspection; According to the rules a bottle sheet of having dried is carried out sampling Detection, test item has 9: 1. limiting viscosity 2. melting temperature 3.PVC content 4. sheet abnormality degrees 5. foreign matter contents 6. colourities 7. content of powder 8. water ratio 9. metal contents.
Packing: carry out the weighing measurement warehouse-in to checking standard compliant bottle sheet.Finish the production process of whole regenerated polyester filament-grade bottle chips.
Inspecting standard and means:
Quantity of sampling quantity is every batch 400 gram, and every batch of sampling is no less than two parts.
Limiting viscosity adopts the automatic viscosity determinator of NCY.
Melting temperature; Adopt WRX---the micro-thermal analyzer of IS.
Water ratio adopts the vacuum oven oven drying method.
PVC content adopts the heating, drying proportional analysis approach.
Content of powder adopts vibratory screening apparatus, and screening quantizes proportional analysis approach.
Colourity, range estimation is from pressing ash card sample to the viscosity of Huang in vain
Impurity: range estimation, refer to arrange the PET foreign material, row chooses proportional analysis approach.
Metal content adopts magnet to absorb range estimation, proportional analysis approach.
Bottle sheet particle diameter, the dipstick metering range estimation.
Bottle sheet examination criteria:
Limiting viscosity dlg 0.75 ± 0.12
Melting temperature b/ ℃ 255 ± 5
Water ratio≤0.8---1.0
PVC content 0---60PPM
Content of powder 0---60PPM
Colourity (by the ash card sample 4 grade standards) degree of range estimation from white to Huang
Impurity 0---30PPM
Metal content 0---30PPM
Bottle sheet particle diameter 10mm---12mm
In sum: utilize the high-end product of the alternative primary polyester of recycled polyester production, very important for the production method of regenerative piece of polyester bottle with the method for inspection and the standard of bottle tablet quality, also be technical support and the quality assurance that recycled polyester is produced high-end product.We prove in the production practice of company from 2007 to 2010 3 years January, completing successfully of the trial-production task of the special-shaped many F product in the recycled polyester cross section, Zhejiang Province that our company bears, and reach the effect that industrialization is produced, the more abundant significance of times that confirms this project innovation also is that recycled polyester is made full use of the significant contribution that develops to the high-end product high value added product.Concrete manifestation for 20% the work that target is made efforts of realizing national 11th Five-Year target for energy-saving and emission-reduction, reach cutting down the consumption of energy.We can taking this as an opportunity, furthers investigate the more innovation and the development of frontier more, turns waste into wealth for recycled polyester and make new contribution.
In addition, need to prove, the specific embodiment described in this specification sheets, its prescription, title that technology is named etc. can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done, be included in the protection domain of patent of the present invention according to patent of the present invention.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Though the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technician who is familiar with this technology, change and the retouching done in not breaking away from design of the present invention and scope all should belong to protection scope of the present invention.
Claims (4)
1. the making of a regenerated polyester filament-grade bottle chips and the method for inspection, it is characterized in that: described making and checking procedure are:
A, the regenerative polyester bottle brick promoted be transported to the conveying belt top and cut off strap, a bottle brick is transported to wash bottle operation section by conveying belt;
B, untie sheet bottle brick, add scavenging solution, the bottle brick is cleaned by whole bottle, keep water temperature at 80 ℃--90 ℃, silt in the polyester bottle slice, impurity etc. are carried out the preliminary washing of appearance, and preliminary part P E trade mark, paper label and the gluing matter PVC label of part that remains on the polyester bottles of removing;
C, the whole bottle of bottle brick process are heated behind the previous cleaning, the variable color of P V C bottle, the PVC bottle becomes milky white dim or orange yellow, carry out the manual sorting then, pick out assorted bottle, look bottle, oil bottle in P V C bottle, the PET bottle, further also need pick simultaneously discharging garbage, foreign material, label bits, sort out respectively then, select cleaner PET bottle and enter next procedure;
D, the PET bottle of selecting is pulverized with the method for case of wet attrition;
E, the bottle sheet that will pulverize float and wash, and floating temperature of washing is that 85-95 ℃ simultaneously that difference of specific gravity is bigger bottle cap PET sorts out;
F, with 80 ℃--90 ℃ hot water heat cleaning, friction rinsing, the bottle sheet after will purifying then dewaters under the effect of whizzer, again through circulating drying plant the water ratio of bottle sheet is dropped to≤1%, obtain regenerated polyester filament-grade bottle chips;
G, will obtain regenerated polyester filament-grade bottle chips and carry out sampling Detection, test item has 9, and the standard of every detection is: limiting viscosity: dlg 0.75 ± 0.12; Melting temperature: b/ ℃ 255 ± 5; Water ratio :≤0.81.0; PVC content: 0---60PPM; Content of powder: 0-60PPM; Colourity: by ash card sample 4 grade standards, the degree of range estimation from white to Huang; Impurity: 0---30PPM; Metal content: 030PPM; Bottle sheet particle diameter: 10mm---12mm;
H, carry out the weighing measurement warehouse-in, non-compliantly reduce to short fiber level and non-fibre-grade, thereby finish the making and the check of regenerated polyester filament-grade bottle chips checking standard compliant bottle sheet.
2. the making of regenerated polyester filament-grade bottle chips according to claim 1 and the method for inspection, it is characterized in that: among the described step h, the concrete grammar that detects is: quantity of sampling quantity is every batch 400 gram, every batch of sampling is no less than two parts, limiting viscosity adopts the automatic viscosity determinator of NCY to detect; Melting temperature adopts the micro-thermal analyzer of WRX-IS; Water ratio adopts the vacuum oven oven drying method; PVC content adopts the heating, drying proportional analysis approach; Content of powder adopts vibratory screening apparatus, and screening quantizes proportional analysis approach; Colourity, range estimation is from pressing ash card sample to the viscosity of Huang in vain; Impurity: range estimation, refer to arrange the PET foreign material, row chooses proportional analysis approach; Metal content adopts magnet to absorb range estimation, proportional analysis approach; Bottle sheet particle diameter, the dipstick metering range estimation.
3. the making of regenerated polyester filament-grade bottle chips according to claim 1 and the method for inspection is characterized in that: in the described steps d, be crushed into sheet particle diameter 〉=12mm ∠ 5%.
4. the making of regenerated polyester filament-grade bottle chips according to claim 1 and the method for inspection is characterized in that: among the described step b, scavenging solution adopts 0.04% sodium hydroxide solution.
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| CN2010102186986A CN101914269A (en) | 2010-07-05 | 2010-07-05 | Preparation and inspection method for regenerated polyester filament-grade bottle chips |
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| CN2010102186986A CN101914269A (en) | 2010-07-05 | 2010-07-05 | Preparation and inspection method for regenerated polyester filament-grade bottle chips |
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Cited By (6)
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| CN102318550A (en) * | 2011-08-17 | 2012-01-18 | 奈曼旗享禾种业有限公司 | Annual three-generation inbred line breeding method of sunflower seed Xianghedabaibian |
| CN102357942A (en) * | 2011-08-23 | 2012-02-22 | 何国强 | Production method for recycled bottle sheet |
| CN103341925A (en) * | 2013-06-05 | 2013-10-09 | 马鞍山湖滨无纺布科技有限公司 | Method for producing PET bottle materials |
| CN110014581A (en) * | 2017-11-13 | 2019-07-16 | 无锡市兴盛新材料科技有限公司 | A kind of novel reclamation set of PBT waste material |
| CN110370502A (en) * | 2019-08-06 | 2019-10-25 | 李建民 | A kind of plastic bottle recovery device with the de- mark function of low-heat sense |
| CN114875500A (en) * | 2022-04-30 | 2022-08-09 | 江苏阿代尔新材料科技有限公司 | Production process of waste silk regenerated polyester filament yarn |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102318550A (en) * | 2011-08-17 | 2012-01-18 | 奈曼旗享禾种业有限公司 | Annual three-generation inbred line breeding method of sunflower seed Xianghedabaibian |
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| CN110370502A (en) * | 2019-08-06 | 2019-10-25 | 李建民 | A kind of plastic bottle recovery device with the de- mark function of low-heat sense |
| CN114875500A (en) * | 2022-04-30 | 2022-08-09 | 江苏阿代尔新材料科技有限公司 | Production process of waste silk regenerated polyester filament yarn |
| CN114875500B (en) * | 2022-04-30 | 2023-08-11 | 江苏阿代尔新材料科技有限公司 | Production process of waste silk regenerated polyester filament yarns |
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Application publication date: 20101215 |