CN1220205A - 废发泡聚苯乙烯塑料回收再生方法 - Google Patents
废发泡聚苯乙烯塑料回收再生方法 Download PDFInfo
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- CN1220205A CN1220205A CN97122010A CN97122010A CN1220205A CN 1220205 A CN1220205 A CN 1220205A CN 97122010 A CN97122010 A CN 97122010A CN 97122010 A CN97122010 A CN 97122010A CN 1220205 A CN1220205 A CN 1220205A
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- foamed polystyrene
- polystyrene plastics
- waste foamed
- recovering
- plastics
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- 229920003023 plastic Polymers 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002699 waste material Substances 0.000 title claims abstract description 18
- 229920006248 expandable polystyrene Polymers 0.000 title claims abstract description 15
- 230000001172 regenerating effect Effects 0.000 title claims description 6
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 2
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- 230000008602 contraction Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
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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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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
本发明涉及一种废发泡聚苯乙烯塑料回收再生方法,其特征在于将收购的废料加入高压釜中,通入150—800kpa压力的水蒸汽1—30分钟进行收缩脱泡处理,再经降温卸料干燥,粉碎至3—5mm后,直接由挤出机挤出、造粒,该方法简单,无污染、安全,产品质量好,回收率高。
Description
本发明涉及一种废发泡聚苯乙烯塑料回收再生方法。
目前，发泡聚苯乙烯塑料的各种制品越来越多，但是至今尚未有理想的再生方法，已有的回收再生方法主要是直接热熔法，溶剂法和加热降解法三种方法，其中直接加热法，由于发泡聚苯乙烯塑料本身具有隔热性能，因此在高温下，传热效果不好，致使表面易氧化发黄，以致焦化，不易获得质量较好的产品，并且由于体积大，质轻，加工困难，粉碎时易带静电，泡体中所含可燃气体丁烷易燃易爆，生产不安全；溶剂法要消耗大量溶剂，而这些溶剂又具有毒性，易残留在产品中蒸发不干净，同时，产生对人体有害健康的成分，其成本又高，同样存在易燃易爆问题，生产不安全，也造成污染环境；高温降解法所得的燃料由于除含有毒物质苯乙烯外，其燃烧冒大量黑烟，同样污染环境，成本高，工艺复杂，应用推广有极大的局限性。
本发明目的正是为了克服上述已有技术的缺点与不足而提供一种安全无污染的废发泡聚苯乙烯塑料回收再生方法，从而可得到高质量的产品，减少环境污染，变废为宝，有广泛的推广价值。
本发明目的是这样实现的：
废发泡聚苯乙烯塑料回收再生方法，其特征在于按下列步骤进行：
将收购的废发泡聚苯乙烯塑料加入高压釜中，通入150-800kpa压力的水蒸汽1-30分钟进行收缩脱泡处理，然后降温卸料，进行干躁，再粉碎粒径3-5mm，最后将粉碎物料用挤出机挤出，造粒，即为回收聚苯乙烯塑料产品。
由于采取上述技术方案使本发明技术与已有技术相比具有如下优点及效果：
a)本发明用高压水蒸气，可防止聚笨乙烯高温氧化，同时不会发生可燃有机气体的燃烧与爆炸的危险，因此可保证安全生产并得到高质量的回收产品；
b)由于水蒸气热容量大，传热均匀，废泡沫聚苯乙烯塑料在高温高压的蒸气热处理后，只需1-30分钟就可使泡体脱泡体积收缩到≥8倍，因此速度快效果好，处理量大；
c)在高压水蒸汽作用下，同时完成回收废料的清洗和消毒；
d)再生方法简单易行，生产安全无污染，无三废排放、回收率高。
实施列1
将收购的废泡沫聚苯乙烯塑料，经过切块，装入具有安全阀，压力表，超压报警装置的高压釜中，封釜，通入150kpa压力的水蒸汽30分钟后降温、卸料，再经过干躁，粉碎至粒径-5mm后，直接用φ60双螺杆塑料挤出机挤出，通水冷却切粒，即得到本发明的再生聚苯乙烯塑料产品。
实施例2
同实施例1的设备，在加入废泡沫聚苯乙烯塑料后通入400kpa压力的水蒸汽10分种后降温卸料，再经过干燥，粉碎至粒径-3mm后，直接用φ90的单螺杆塑料挤出机挤出，通水冷却切粒，即得到本发明的再生聚苯乙烯塑料产品。
实施例3
同实施例1的设备，在加入废发泡聚苯乙烯塑料后，通入800kpa压力的水蒸汽，1分钟后，降温卸料经过干燥，粉碎粒径为-5mm后，直接用φ60双螺杆塑料挤出机挤出，水下切粒，即得到本发明的再生聚苯乙烯塑料产品。
Claims (1)
1．废发泡聚苯乙烯塑料回收再生方法，其特征在于按下列步骤进行：
将收购的废发泡聚苯乙烯塑料加入高压釜中，通入150-800kpa压力的水蒸汽1-30分钟进行收缩脱泡处理，然后降温卸料，进行干躁，再粉碎粒径3-5mm，最后将粉碎物料用挤出机挤出，造粒，即为回收聚苯乙烯塑料产品。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97122010A CN1220205A (zh) | 1997-12-15 | 1997-12-15 | 废发泡聚苯乙烯塑料回收再生方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97122010A CN1220205A (zh) | 1997-12-15 | 1997-12-15 | 废发泡聚苯乙烯塑料回收再生方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1220205A true CN1220205A (zh) | 1999-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97122010A Pending CN1220205A (zh) | 1997-12-15 | 1997-12-15 | 废发泡聚苯乙烯塑料回收再生方法 |
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| CN (1) | CN1220205A (zh) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100482439C (zh) * | 2002-04-12 | 2009-04-29 | Mba聚合物公司 | 塑料的多步分离 |
| CN100575053C (zh) * | 2006-10-18 | 2009-12-30 | 张凤臣 | 用废弃eps泡沫塑料制造异型包装物、板材的方法 |
| CN101177026B (zh) * | 2006-11-10 | 2010-05-12 | 隆典实业股份有限公司 | 回收再制发泡方法 |
| CN101920534A (zh) * | 2009-06-16 | 2010-12-22 | 飞雕电器集团有限公司 | 一种废料回收方法 |
| CN102581986A (zh) * | 2012-02-27 | 2012-07-18 | 大河宝利材料科技(苏州)有限公司 | 一种工业后再循环废弃塑料的回收方法 |
| CN114252951A (zh) * | 2016-05-27 | 2022-03-29 | 三菱化学株式会社 | 光学用聚乙烯醇系薄膜及其制造方法、以及利用该光学用聚乙烯醇系薄膜的偏光膜 |
-
1997
- 1997-12-15 CN CN97122010A patent/CN1220205A/zh active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100482439C (zh) * | 2002-04-12 | 2009-04-29 | Mba聚合物公司 | 塑料的多步分离 |
| CN100575053C (zh) * | 2006-10-18 | 2009-12-30 | 张凤臣 | 用废弃eps泡沫塑料制造异型包装物、板材的方法 |
| CN101177026B (zh) * | 2006-11-10 | 2010-05-12 | 隆典实业股份有限公司 | 回收再制发泡方法 |
| CN101920534A (zh) * | 2009-06-16 | 2010-12-22 | 飞雕电器集团有限公司 | 一种废料回收方法 |
| CN102581986A (zh) * | 2012-02-27 | 2012-07-18 | 大河宝利材料科技(苏州)有限公司 | 一种工业后再循环废弃塑料的回收方法 |
| CN102581986B (zh) * | 2012-02-27 | 2014-07-02 | 大河宝利材料科技(苏州)有限公司 | 一种工业后再循环废弃塑料的回收方法 |
| CN114252951A (zh) * | 2016-05-27 | 2022-03-29 | 三菱化学株式会社 | 光学用聚乙烯醇系薄膜及其制造方法、以及利用该光学用聚乙烯醇系薄膜的偏光膜 |
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