CN102357942A - Production method for recycled bottle sheet - Google Patents
Production method for recycled bottle sheet Download PDFInfo
- Publication number
- CN102357942A CN102357942A CN2011102432896A CN201110243289A CN102357942A CN 102357942 A CN102357942 A CN 102357942A CN 2011102432896 A CN2011102432896 A CN 2011102432896A CN 201110243289 A CN201110243289 A CN 201110243289A CN 102357942 A CN102357942 A CN 102357942A
- Authority
- CN
- China
- Prior art keywords
- pet
- pet particle
- bottle
- rinsing
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
The present invention relates to a production method for a recycled bottle sheet. According to the method, recovered PET bottles are pre-washed to maximally remove impurities; the PET bottles are crushed into PET particles with a particles size of 16 mm, and the impurities in the PET particles are separated; then the PET particles are subjected to treatments of secondary washing, separation rinsing, dehydration and separation, and drying in one time to obtain the required recycled bottle sheet. The method provided by the present invention has the following advantages that: the PET bottles are recovered and utilized; the recycling quality and the recycling efficiency of the PET bottles are improved; a new raw material source is provided for the production of terylene FDY.
Description
[technical field]
The present invention relates to a kind of production method, be specifically related to a kind of production method that can be used as the reclaiming bottle piece of polyester FDY raw materials for production.
[background technology]
Polyester (PET) bottle (like mineral water bottle, beverage bottle, edible oil bottle etc.) nearly all is not biodegradable, and Along with people's is handled and recycled the key issue that the waste polyester bottle has become the polyester industrial sustainable development the raising of environmental requirement.In the last few years, people had constantly developed the method for some recyclings: such as making short fiber with the PET bottle chips that reclaims (sheet stock that the waste polyester bottle that promptly reclaims is ground into), be used for small screw in the laboratory and do the experiment of producing long filament; Chinese patent publication number CN1683612 discloses a kind of " directly being made the production method of fiber by the polyester bottle sheet material that reclaims " etc.Though these methods can be recycled polyester bottles, only limit to some low-end products, experimental and the field relatively large to the bottle chips requirement.Produce the returnable bottle sheet stock that obtains in the prior art and can't be used for the high and production technology higher of the such braided wire speed of polyester FDY ingredient requirement because of the more high reason of its impurity content.
[summary of the invention]
Technical problem to be solved by this invention is to provide a kind of production method of reclaiming bottle piece, when realizing the recycling of PET bottle, has improved it and has reclaimed quality and benefit, and for producing polyester FDY a kind of new raw material sources are provided.
The present invention solves the problems of the technologies described above through following technical scheme: specifically comprise the steps:
Step 1, prerinse: the PET bottle that reclaims is carried out high speed impact cleaning so that the impurity maximization is removed; And in cleaning process the bottle with bottle between mutual friction mutually; The water temperature of cleaning is 70～80 ℃, and the water of cleaning is alkalescent, pH value is 8～9, and scavenging period is 15min;
Step 2, pulverizing separate: adopt pulverizer to be ground into the PET particle that particle diameter is 16mm in the PET bottle after the prerinse; Afterwards PET particle transport to the separation equipment that is provided with inner bag that obtains is carried out separating of impurity and PET particle, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min;
Step 3, secondary cleaning: will in step 2, carry out the high temperature rotation in PET particle transport to the high temperature furnace after the separating treatment and clean; Rotational line speed is 2500m/min; Temperature is set to 90 ℃ in the stove; Water in the stove is alkalescent, pH value is 10～11, and every batch of PET particle time of staying in stove is 20min;
Step 4, separation rinsing: the PET particle transport after the step 3 cleaning is not carried out high speed rotation separation to there being the inner bag separation equipment; Impurity in the PET particle is further separated, afterwards the PET particle is carried out rinsing to remove alkalescence, microparticle and suspension;
Step 5, dehydration separate: the PET particle after the step 4 rinsing is dewatered, and the impurity that carries out the PET particle after the dehydration further separates, lock out operation is consistent in this lock out operation and the step 2;
Step 6, drying: with the final PET particle drying that obtains of step 5 handle to moisture content smaller or equal to one of percentage, thereby required reclaiming bottle piece.
Further, the concrete operations of rinsing in the said step 4: adopt the mode of screw rod transmission in rinsing bath, to carry out rinsing the PET particle, and current in the opposite direction in the direction of screw rod transmission PET particle and the rinsing bath.
Further, the depth of water in the said rinsing bath is made as 1.6m.
The beneficial effect of the production method of a kind of reclaiming bottle piece of the present invention is: through the PET bottle that reclaims being carried out successively prerinse, pulverizing separation, secondary cleaning, separation rinsing, dehydration separation and a kind of new reclaiming bottle piece of dry back acquisition; This reclaiming bottle piece has the few characteristics of impurity; Can satisfy and produce the high requirement of polyester FDY linear velocity; Promptly can be used as the raw materials for production of polyester FDY, thereby not only realize recycling, and improved it and reclaimed quality and benefit the PET bottle; Meanwhile, also a kind of new raw material sources are provided for producing polyester FDY.
[specific embodiment]
The production method of a kind of reclaiming bottle piece of the present invention; Mainly be based on the condition of producing the required polyester material of polyester FDY; Consider that from reducing impurity content and viscosity aspect the PET bottle that reclaims is prepared through series of operations reclaimed the quality high product, it specifically comprises the steps: step 1, prerinse: the PET bottle that reclaims is carried out high speed impact cleaning so that the impurity maximization is removed; And in cleaning process the bottle with bottle between mutual friction mutually; The water temperature of cleaning is 70～80 ℃, and the water of cleaning is alkalescent, pH value is 8～9, and scavenging period is 15min; Step 2, pulverizing separate: adopt pulverizer to be ground into the PET particle that particle diameter is 16mm in the PET bottle after the prerinse; Afterwards PET particle transport to the separation equipment that is provided with inner bag that obtains is carried out separating of impurity and PET particle, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min; Step 3, secondary cleaning: will in step 2, carry out the high temperature rotation in PET particle transport to the high temperature furnace after the separating treatment and clean; Rotational line speed is 2500m/min; Temperature is set to 90 ℃ in the stove; Water in the stove is alkalescent, pH value is 10～11, and every batch of PET particle time of staying in stove is 20min; Step 4, separation rinsing: the PET particle transport after the step 3 cleaning is not carried out high speed rotation separation to there being the inner bag separation equipment; Impurity in the PET particle is further separated, afterwards the PET particle is carried out rinsing to remove alkalescence, microparticle and suspension; Step 5, dehydration separate: the PET particle after the step 4 rinsing is dewatered, and the impurity that the PET particle after the dehydration is carried out further separates, lock out operation is consistent in this lock out operation and the step 2; Step 6, drying: with the final PET particle drying that obtains of step 5 handle to moisture content smaller or equal to one of percentage, thereby required reclaiming bottle piece.
Wherein, to adopt weakly alkaline water to clean mainly be in order to remove greasy dirt for step 1 and step 3; Adopting the separation equipment that is provided with inner bag in the step 2 is in order better the powder fragment to be isolated from the PET particle; The reason that adopts no inner bag separation equipment in the step 4 is in order to increase the space with the fraction time between the prolongation PET particle, thereby impurity can be isolated more fully; Linear velocity is 2500m/min in step 2 and the step 3, if linear velocity then can't be thrown out of impurity less than 2500m/min preferably from the PET particle, if linear velocity is excessive, then can expend the bigger energy; In addition, the concrete operations of rinsing are to adopt the mode of screw rod transmission in rinsing bath, to carry out rinsing the PET particle in the step 4, and current in the opposite direction in the direction of screw rod transmission PET particle and the rinsing bath, and the depth of water in this rinsing bath preferably is made as 1.6m.
For better the present invention will be described, the present invention has lifted following several embodiment.
Embodiment one
The PET bottle of returning is carried out high speed impact cleaning so that the impurity maximization is removed; And in cleaning process between bottle and the bottle mutually mutual friction to remove the impurity such as paper pulp of bottle appearance; The water temperature of cleaning is 80 ℃, and the water of cleaning is alkalescent, pH value is 8, and scavenging period is 15min; PET bottle after then will cleaning adopts pulverizer to be ground into the PET particle that particle diameter is 16mm; And PET particle transport to the separation equipment that is provided with inner bag that obtains carried out separating of impurity and PET particle, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min; With carrying out secondary cleaning in PET particle transport to the high temperature furnace after the separating treatment; Be in particular the high temperature rotation and clean, rotational line speed is 2500m/min, and temperature is set to 90 ℃ in the stove; Water in the stove is alkalescent, pH value is 11, and every batch of PET particle time of staying in stove is 20min; PET particle transport after the high temperature rotation cleaning is not carried out high speed rotation separation to there being the inner bag separation equipment, the impurity in the PET particle is further separated, afterwards the PET particle is carried out rinsing to remove alkalescence, microparticle and suspension; PET particle after the rinsing is dewatered, and carry out impurity separation further to PET particle transport to the separation equipment that is provided with inner bag after the dehydration, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min; At last dehydration and after separating, the PET particle drying handle to moisture content smaller or equal to one of percentage, thereby required reclaiming bottle piece.
Embodiment two
The PET bottle of returning is carried out high speed impact cleaning so that the impurity maximization is removed; And in cleaning process between bottle and the bottle mutually mutual friction to remove the impurity such as paper pulp of bottle appearance; The water temperature of cleaning is 70 ℃, and the water of cleaning is alkalescent, pH value is 8.5, and scavenging period is 15min; PET bottle after then will cleaning adopts pulverizer to be ground into the PET particle that particle diameter is 16mm; And PET particle transport to the separation equipment that is provided with inner bag that obtains carried out separating of impurity and PET particle, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min; With carrying out secondary cleaning in PET particle transport to the high temperature furnace after the separating treatment; Be in particular the high temperature rotation and clean, rotational line speed is 2500m/min, and temperature is set to 90 ℃ in the stove; Water in the stove is alkalescent, pH value is 10, and every batch of PET particle time of staying in stove is 20min; PET particle transport after the high temperature rotation cleaning is not carried out high speed rotation separation to there being the inner bag separation equipment, the impurity in the PET particle is further separated, afterwards the PET particle is carried out rinsing to remove alkalescence, microparticle and suspension; PET particle after the rinsing is dewatered, and carry out impurity separation further to PET particle transport to the separation equipment that is provided with inner bag after the dehydration, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min; At last dehydration and after separating, the PET particle drying handle to moisture content smaller or equal to one of percentage, thereby required reclaiming bottle piece.
Embodiment three
The PET bottle of returning is carried out high speed impact cleaning so that the impurity maximization is removed; And in cleaning process between bottle and the bottle mutually mutual friction to remove the impurity such as paper pulp of bottle appearance; The water temperature of cleaning is 75 ℃, and the water of cleaning is alkalescent, pH value is 9, and scavenging period is 15min; PET bottle after then will cleaning adopts pulverizer to be ground into the PET particle that particle diameter is 16mm; And PET particle transport to the separation equipment that is provided with inner bag that obtains carried out separating of impurity and PET particle, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min; With carrying out secondary cleaning in PET particle transport to the high temperature furnace after the separating treatment; Be in particular the high temperature rotation and clean, rotational line speed is 2500m/min, and temperature is set to 90 ℃ in the stove; Water in the stove is alkalescent, pH value is 10.5, and every batch of PET particle time of staying in stove is 20min; PET particle transport after the high temperature rotation cleaning is not carried out high speed rotation separation to there being the inner bag separation equipment, the impurity in the PET particle is further separated, afterwards the PET particle is carried out rinsing to remove alkalescence, microparticle and suspension; PET particle after the rinsing is dewatered, and carry out impurity separation further to PET particle transport to the separation equipment that is provided with inner bag after the dehydration, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min; At last dehydration and after separating, the PET particle drying handle to moisture content smaller or equal to one of percentage, thereby required reclaiming bottle piece.
The reclaiming bottle piece of above-mentioned acquisition can know that through measuring it has the few characteristics of impurity, meets the condition as the polyester FDY raw materials for production, is the production polyester FDY a kind of new raw material sources are provided; In addition; If with the PET bottle of returning impact at a high speed carry out earlier before cleaning sorting with the PET bottle inherent viscosity that guarantees to get into subsequent operation or step all more than 0.75, the then final reclaiming bottle piece that obtains not only can be used as the raw materials for production of polyester FDY but also can be used as the raw material that spins industry thread.
Claims (3)
1. the production method of a reclaiming bottle piece is characterized in that: specifically comprise the steps:
Step 1, prerinse: the PET bottle that reclaims is carried out high speed impact cleaning so that the impurity maximization is removed; And in cleaning process the bottle with bottle between mutual friction mutually; The water temperature of cleaning is 70～80 ℃, and the water of cleaning is alkalescent, pH value is 8～9, and scavenging period is 15min;
Step 2, pulverizing separate: adopt pulverizer to be ground into the PET particle that particle diameter is 16mm in the PET bottle after the prerinse; Afterwards PET particle transport to the separation equipment that is provided with inner bag that obtains is carried out separating of impurity and PET particle, and the temperature of separation equipment is set at normal temperature, linear velocity is set at 2500m/min;
Step 3, secondary cleaning: will in step 2, carry out the high temperature rotation in PET particle transport to the high temperature furnace after the separating treatment and clean; Rotational line speed is 2500m/min; Temperature is set to 90 ℃ in the stove; Water in the stove is alkalescent, pH value is 10～11, and every batch of PET particle time of staying in stove is 20min;
Step 4, separation rinsing: the PET particle transport after the step 3 cleaning is not carried out high speed rotation separation to there being the inner bag separation equipment; Impurity in the PET particle is further separated, afterwards the PET particle is carried out rinsing to remove alkalescence, microparticle and suspension;
Step 5, dehydration separate: the PET particle after the step 4 rinsing is dewatered, and the impurity that carries out the PET particle after the dehydration further separates, lock out operation is consistent in this lock out operation and the step 2;
Step 6, drying: with the final PET particle drying that obtains of step 5 handle to moisture content smaller or equal to one of percentage, thereby required reclaiming bottle piece.
2. the production method of a kind of reclaiming bottle piece as claimed in claim 1; It is characterized in that: the concrete operations of rinsing in the said step 4: adopt the mode of screw rod transmission in rinsing bath, to carry out rinsing the PET particle, and current in the opposite direction in the direction of screw rod transmission PET particle and the rinsing bath.
3. the production method of a kind of reclaiming bottle piece as claimed in claim 2, it is characterized in that: the depth of water in the said rinsing bath is made as 1.6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102432896A CN102357942A (en) | 2011-08-23 | 2011-08-23 | Production method for recycled bottle sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102432896A CN102357942A (en) | 2011-08-23 | 2011-08-23 | Production method for recycled bottle sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102357942A true CN102357942A (en) | 2012-02-22 |
Family
ID=45583350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102432896A Pending CN102357942A (en) | 2011-08-23 | 2011-08-23 | Production method for recycled bottle sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102357942A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160397A (en) * | 2013-03-22 | 2013-06-19 | 江苏中再生投资开发有限公司 | Efficient regeneration PET (polyethylene terephthalate) bottle chip cleaning agent and cleaning method thereof |
| CN103422182A (en) * | 2013-08-19 | 2013-12-04 | 大连恒源纤维科技有限公司 | Regenerated polyester short-cut fiber |
| CN103831911A (en) * | 2014-03-12 | 2014-06-04 | 江苏中再生投资开发有限公司 | Method for preparing special material of recycled polyester for high-purity chemical fibers |
| CN104708730A (en) * | 2015-02-12 | 2015-06-17 | 苏州玖隆再生科技股份有限公司 | PET bottle recycling process |
| CN105235099A (en) * | 2015-11-14 | 2016-01-13 | 安徽双帆高纤有限公司 | Method for machining spinning fibrous materials with abandoned plastic bottles as basic materials |
| CN105269713A (en) * | 2015-11-17 | 2016-01-27 | 王仁杰 | Low-temperature crushing and separating treatment method for oil field waste plastic |
| CN105837853A (en) * | 2016-03-31 | 2016-08-10 | 浙江绿宇环保有限公司 | Cleaning and pretreatment process for waste textiles containing polyester fibers |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306560A (en) * | 2008-02-02 | 2008-11-19 | 谭亦武 | High-cleanliness cleaning and treating system for PET recovered bottle pieces |
| CN101844379A (en) * | 2010-05-18 | 2010-09-29 | 北京朗林德通环保科技有限公司 | Device for producing regenerative polyester bottle chips by using waste plastics and production process thereof |
| CN101914269A (en) * | 2010-07-05 | 2010-12-15 | 海盐海利环保纤维有限公司 | Preparation and inspection method for regenerated polyester filament-grade bottle chips |
| CN102114676A (en) * | 2011-01-31 | 2011-07-06 | 苏州中塑再生机械有限公司 | Recycling, breaking and cleaning line for polyethylene terephthalate (PET) mineral water bottle |
-
2011
- 2011-08-23 CN CN2011102432896A patent/CN102357942A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306560A (en) * | 2008-02-02 | 2008-11-19 | 谭亦武 | High-cleanliness cleaning and treating system for PET recovered bottle pieces |
| CN101844379A (en) * | 2010-05-18 | 2010-09-29 | 北京朗林德通环保科技有限公司 | Device for producing regenerative polyester bottle chips by using waste plastics and production process thereof |
| CN101914269A (en) * | 2010-07-05 | 2010-12-15 | 海盐海利环保纤维有限公司 | Preparation and inspection method for regenerated polyester filament-grade bottle chips |
| CN102114676A (en) * | 2011-01-31 | 2011-07-06 | 苏州中塑再生机械有限公司 | Recycling, breaking and cleaning line for polyethylene terephthalate (PET) mineral water bottle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160397A (en) * | 2013-03-22 | 2013-06-19 | 江苏中再生投资开发有限公司 | Efficient regeneration PET (polyethylene terephthalate) bottle chip cleaning agent and cleaning method thereof |
| CN103422182A (en) * | 2013-08-19 | 2013-12-04 | 大连恒源纤维科技有限公司 | Regenerated polyester short-cut fiber |
| CN103831911A (en) * | 2014-03-12 | 2014-06-04 | 江苏中再生投资开发有限公司 | Method for preparing special material of recycled polyester for high-purity chemical fibers |
| CN104708730A (en) * | 2015-02-12 | 2015-06-17 | 苏州玖隆再生科技股份有限公司 | PET bottle recycling process |
| CN105235099A (en) * | 2015-11-14 | 2016-01-13 | 安徽双帆高纤有限公司 | Method for machining spinning fibrous materials with abandoned plastic bottles as basic materials |
| CN105269713A (en) * | 2015-11-17 | 2016-01-27 | 王仁杰 | Low-temperature crushing and separating treatment method for oil field waste plastic |
| CN105269713B (en) * | 2015-11-17 | 2017-11-17 | 王仁杰 | Oil field waste plastic at low temperature crushes method for separating and processing |
| CN105837853A (en) * | 2016-03-31 | 2016-08-10 | 浙江绿宇环保有限公司 | Cleaning and pretreatment process for waste textiles containing polyester fibers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102357942A (en) | Production method for recycled bottle sheet | |
| CN102179883B (en) | Film crushing washing line | |
| EP3386655B1 (en) | Method for waste processing | |
| CN102677515A (en) | Process for preparing recovered pulp with high whiteness and high cleanliness | |
| CN103074109B (en) | Method for removing resin substance from lignite wax | |
| CN102671922A (en) | Method for recycling papermaking waste residues | |
| CN101935895A (en) | Method for preparing ultraviolet resistance POY composite filament by reclaimed PET chips and nanometer TiO2 | |
| CN107825620B (en) | Method for green freezing recovery of plastic bottles | |
| CN103143438A (en) | Production technique of magnetite refined powdered iron by dry process | |
| CN106007502A (en) | Method for enhancing mechanical properties of paste filling material by using plastic waste | |
| CN1560283A (en) | Technology for using steel dregs | |
| CN103785670A (en) | Method for harmless treatment of waste residue in paper making | |
| CN108726522B (en) | Silicon slag electric separation method capable of effectively improving silicon metal recovery rate | |
| CN103071573B (en) | A kind of calcium sulfate disintegrating apparatus and technique | |
| CN1326821A (en) | Process for treating silicon slag | |
| CN101914269A (en) | Preparation and inspection method for regenerated polyester filament-grade bottle chips | |
| CN101658854B (en) | Method for preparing high-performance concrete additive by using steel slag ball-milling waste residue | |
| CN204263405U (en) | A kind of waste household appliances plastic casing treatment system | |
| CN104338605A (en) | Method for recycling inorganic filler from iron tailings, obtained inorganic filler and inorganic filler modification method | |
| CN101811706A (en) | Causticized alkali liquor efficient separation method | |
| CN102816248B (en) | Dry type cassava starch extraction process | |
| CN103341925A (en) | Method for producing PET bottle materials | |
| CN100577308C (en) | Belt-type double-magnetic track magnetic separator for obtianing fine iron powder by magnetic separation | |
| CN104138793A (en) | Reselection impurity removal method for talcum ore containing ferrous sulfide | |
| CN206405168U (en) | A kind of fixed-end forces device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120222 |