TWI513562B - 以高軟化溫度製造塑膠顆粒之方法 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Description
本發明是一種關於在製造融熔鏈塑料的穿孔板與其後含製程液體與切削裝置的製程室裡使用高軟化溫度(特別是超過120℃)來製造塑膠顆粒的方法,在那裡面混合了製程液體的粒體被排進冷卻槽以冷卻此粒體,這樣的塑膠包括例如聚碳酸酯、聚碳酸酯混合物、聚苯乙烯、低黏度聚對苯二甲二乙酯與高溫熱塑性塑膠。
熱塑性聚合物的造粒在WO/2004/080679 A1中有描述。當造粒時為了製造具有小於10%凹點與其他面都是凸點的顆粒,此文件揭露將適用的聚合物以鏈塑料的方式進料到充滿製程流體的製程室內,且使用切削裝置來切碎成粒體,之後此含有製程流體的粒體再以冷卻液的混合下冷卻且溫度從60℃到130℃,此水下造粒方法可以避免顆粒的內部形成空穴或液泡。
並且WO 2004/033174 A1敘述了一種製造塑膠顆粒的方法,其中造粒是在一高於100℃的液體槽內完成;據此造粒在一液體槽內(最好是溫度高於100℃水槽),且此容器是以壓力槽的方式並立刻接在造粒完成後。
本發明同樣地也是關於使用一高軟化溫度來製造塑膠顆粒的方法,特別是其溫度超過120℃,如此設計以致所製造的顆粒大多不具有空洞,根據此發明是由將製程室充滿製程液體(特別是水)來完成,此製程流體與粒體的混合物一起被傳送過冷卻槽到分離槽,且過程中壓力都維持著,在分離槽中粒體被從製程流體中分離後再先被送過一氣壓閥,以降壓到環境壓力後排出。
在造粒的方法中,故意結合使用相對的高溫與高壓,也就是溫度大於120℃且壓力大於2巴。因為相對大於120℃的高溫,塑膠可以在高軟化溫度進行造粒,且同時使用相對大於2巴的壓力在切削裝置內,在此壓力下實際上可完全避免空洞的形成,特別是在被提供到切削裝置後的冷卻槽時,如果有空穴或液泡的塑膠顆粒會在後製程加工時產生紋路或氣泡。
接在冷卻槽之後,已冷卻的粒體可以在施加壓力下從製程流體分離且排出。為了這個目的,接續冷卻槽後接了一分離槽,其中粒體可以從製程流體內藉由施加壓力而被分離且再被送到一氣壓閥來降低壓力到環境壓力,此之後粒體可被分開來做後續製程。
在本發明中,也能回收含在流體內的熱能,特別是使用熱交換器為有助益的方法,此製程流體與粒體的混合物在穿過冷卻槽後就被送到熱交換器做熱回收,然後穿過氣壓閥到分離槽內且其溫度低於製程流體沸點,在這裡首先粒體被排出,其次製程流體穿過熱交換器回到製程室。
此切削裝置被設計為水中造粒機,其中熱鏈塑料被送進穿孔板,然後就被切削旋轉輪掃過的穿孔板切削成粒體。
圖1說明了本發明方法的一個特別的實現例,其中製程室1具有一眾所周知的水中造粒機,其具有習知的穿孔板2與切削旋轉輪3,其刀片掃過穿孔板,如此可將經由進料管進來到穿孔板2的融熔狀鏈塑料切削成粒體,輔助此切削製程是用一有製程流體提供給製程室的方式來做,其製程流體是經由進料管5注入到製程室1的內部,此製程流體(特別是水)是以溫度大於120℃且壓力大於2巴的狀態注滿製程室1的內部。
在製程室內製造出來的粒體然後就被與製程流體混合送過進料管6到冷卻槽7內,其中可以充分地去除熱並維持一壓力,所以在後續的分離槽8中將粒體與製程流體分離;然後粒體就被送過進料管9到被設計為回轉式氣壓閥的氣壓閥10中,其可以將傳到的材料恢復到室壓,所以粒體材料就可以傳送到出料口11做後續製程加工。
從分離槽8排出的製程流體就被經由進料管12送到過濾幫浦裝置13,其可以將製程流體中的微小顆粒分離出來且設定系統壓力到大於2巴,此製程流體就被送過進料管14到溫度控制裝置15,其中可以藉由能量流16的方式(加熱或冷卻)來將溫度提高到大於120℃,此已定好溫度與壓力而離開溫度控制裝置15的製程流體再被經由進料管5送到製程室1。
另一個實現本發明的架構就如圖2所示,其具有一熱交換器17來做熱回收,其加入到整體架構就如下所示:經由進料管4送進來融熔狀的塑料與製程室1的操作方法與上述圖1所述相同,所以這方面可以參考圖1的說明,根據在圖1的架構下,製程流體與粒體的混合物就被送到冷卻槽7且特別是再送到熱交換器17,熱交換器17在圖2只以圖示的方式表示,特別是可用熱泵來實施;此熱交換器17接受了經過進料管18的混合物且由出料口19排出(其特別是低溫),其熱能已經被如下所示地使用在別處,從出口19排出的混合物然後就通過氣壓閥10,其可以將排出的混合物的壓力降低到室壓且冷卻後通過進料管20送到分離槽8,此分離槽8從出口21只排出環境壓力下的粒體且溫度已降低,從分離槽8分離出的製程流體再經由進料管22到過濾幫浦裝置13,此裝置可傳送純化過的製程流體到通過進料管23到熱交換器的入口24,將製程流體導過熱交換器17就可以用流體吸熱的方式將熱儲存起來且在熱交換器17的出口25散發出的熱,將熱用來做後續使用,然後再以與圖1所示相同的方式傳送到溫度控制裝置15,此控制裝置可以確保經由進料管5送進製程室地製程流體的壓力與溫度。
1‧‧‧製程室
2‧‧‧穿孔板
3‧‧‧切削旋轉輪
4‧‧‧進料管
5‧‧‧進料管
6‧‧‧進料管
7‧‧‧冷卻槽
8‧‧‧分離槽
9‧‧‧進料管
10‧‧‧氣壓閥
11‧‧‧出料口
12‧‧‧出料口
13‧‧‧過濾幫浦裝置
14‧‧‧進料管
15‧‧‧溫度控制裝置
16‧‧‧能量流
17‧‧‧熱交換器
18‧‧‧進料管
19‧‧‧出料口
20‧‧‧進料管
21‧‧‧出口
22‧‧‧進料管
23‧‧‧進料管
24‧‧‧熱交換器的入口
25‧‧‧出口
圖1揭示了一方法的架構圖,其將製程流體與粒體的混合物在通過冷卻槽後在分離槽的施加壓力下分離。
圖2揭示了一方法的架構圖,其將製程流體與粒體的混合物在
回收熱能後送過氣壓閥到分離槽。
1‧‧‧製程室
2‧‧‧穿孔板
3‧‧‧切削旋轉輪
4‧‧‧進料管
5‧‧‧進料管
6‧‧‧進料管
7‧‧‧冷卻槽
8‧‧‧分離槽
9‧‧‧進料管
10‧‧‧氣壓閥
11‧‧‧出料口
12‧‧‧出料口
13‧‧‧過濾幫浦裝置
14‧‧‧進料管
15‧‧‧溫度控制裝置
16‧‧‧能量流
Claims (12)
- 一種使用高軟化溫度來製造塑膠顆粒的方法,特別是其溫度超過120℃且在製造融熔的鏈塑料的穿孔板與之後含有製程液體與切削裝置的製程室裡,在那裡面一製程液體與粒體的混合物被排進冷卻槽內來冷卻此粒體,其特徵在於此製程室充滿了製程流體,其溫度大於120℃且壓力大於2巴,且此製程流體與粒體的混合物一起被送過冷卻槽到分離槽,且傳送過程中壓力都維持著,且在分離槽中粒體被從製程流體分離出,粒體接著送過一氣壓閥以降到環境壓力後排出。
- 如申請專利範圍第1項之方法,其特徵在於一水中造粒機被用來作為切削裝置。
- 如申請專利範圍第1或2項之方法,其特徵在於可被做造粒的塑膠是聚碳酸酯、聚碳酸酯混合物、聚苯乙烯、低黏度聚對苯二甲二乙酯或高溫熱塑性塑膠。
- 一種使用高軟化溫度來製造塑膠顆粒的方法,特別是其溫度超過120℃且在製造融熔的鏈塑料的穿孔板與之後含有製程液體與切削裝置的製程室裡,在那裡面一製程液體與粒體的混合物被排進冷卻槽內來冷卻此粒體,其特徵在於此製程室充滿了製程流體,其溫度大於120℃且壓力大於2巴,且此製程流體與粒體的混合物一起被送過冷卻槽,且傳送過程中壓力都維持著,混合物通過冷卻槽後送到氣壓閥以降到環境壓力,接著送到分離槽中以將粒體從製程流體分離出。
- 如申請專利範圍第4項之方法,其特徵在於此製程液體與粒體的混合物在通過冷卻槽後被送到熱交換器,經熱回收後再以一低於製程流體沸點的狀態經過氣壓閥到分離槽,在此粒體被送出且其次製程流體穿過熱交換器回到製程室。
- 如申請專利範圍第5項之方法,其特徵在於熱回收是由熱泵來完成。
- 如申請專利範圍第4項之方法,其特徵在於一水中造粒機被用來作為切削裝置。
- 如申請專利範圍第4至7項中任一項之方法,其特徵在於可被做造粒的塑膠是聚碳酸酯、聚碳酸酯混合物、聚苯乙烯、低黏度聚對苯二甲二乙酯或高溫熱塑性塑膠。
- 一種使用超過120℃的高軟化溫度來製造塑膠顆粒的裝置,包含:一製程室,其內部包含有一溫度大於120℃且壓力大於2巴的製程液體;一穿孔板,用以製造融熔的鏈塑料,其中該穿孔板係設置在該製程室內;一切削裝置,設置在該製程室內,以將該些鏈塑料切碎成粒體;一冷卻槽,用以接收來自該製程室的製程液體與粒體的混合物,其中該混合物由該製程室傳送至該冷卻槽的過程中壓力都維持著;一氣壓閥,用以將該混合物降到環境壓力;一熱交換器,用以對來自該冷卻槽的混合物進行熱回收;以及一分離槽,用以將該粒體從該製程流體分離出,且將該製程流體經由該熱交換器送回至該製程室,其中從該熱交換器來的該混合物係以低於該製程流體的沸點溫度經過該氣壓閥送到該分離槽。
- 如申請專利範圍第9項之裝置,其中該熱交換器包含一熱泵,用以進行熱回收。
- 如申請專利範圍第9項之裝置,其中一水中造粒機係被用來作為切削裝置。
- 如申請專利範圍第9至11項中任一項之裝置,係用以對聚碳酸酯、聚碳酸酯混合物、聚苯乙烯、低黏度聚對苯二甲二乙酯或高溫熱塑性塑膠進行造粒。
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DE102008062480A DE102008062480A1 (de) | 2008-12-16 | 2008-12-16 | Verfahren zum Granulieren von Kunststoff mit hoher Erweichungstemperatur |
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TW201034827A TW201034827A (en) | 2010-10-01 |
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TW098143117A TWI513562B (zh) | 2008-12-16 | 2009-12-16 | 以高軟化溫度製造塑膠顆粒之方法 |
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US (1) | US20120256341A1 (zh) |
EP (1) | EP2361174B1 (zh) |
JP (1) | JP5635006B2 (zh) |
DE (1) | DE102008062480A1 (zh) |
ES (1) | ES2529059T3 (zh) |
PL (1) | PL2361174T3 (zh) |
TW (1) | TWI513562B (zh) |
WO (1) | WO2010072361A1 (zh) |
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JP5557631B2 (ja) * | 2010-07-13 | 2014-07-23 | 株式会社神戸製鋼所 | 水中カット造粒装置 |
DE102011004429A1 (de) * | 2011-02-18 | 2012-08-23 | Coperion Gmbh | Vorrichtung zur Herstellung von Granulaten aus polymeren Werkstoffen |
FR2981600B1 (fr) | 2011-10-25 | 2013-11-15 | Rhodia Operations | Procede de preparation de granules de polyamide |
DE102011119076B4 (de) * | 2011-11-21 | 2014-06-26 | Automatik Plastics Machinery Gmbh | Vorrichtung und Verfahren zum Druckabbau eines Fluids mit darin enthaltenen Granulatkörnern |
JP6006653B2 (ja) * | 2013-02-04 | 2016-10-12 | 出光興産株式会社 | ポリカーボネート樹脂用押出造粒装置およびポリカーボネート樹脂押出造粒方法 |
US10393455B2 (en) * | 2013-07-22 | 2019-08-27 | Ineos Europe Ag | Method of cleaning a heat exchanger |
DE102015210966A1 (de) * | 2015-06-15 | 2016-12-15 | Maag Automatik Gmbh | Kunststoffgranulat und Verfahren zur Herstellung von Kunststoffgranulat |
DE102015119787A1 (de) | 2015-11-16 | 2017-05-18 | Maag Automatik Gmbh | Verfahren zur Herstellung eines Kunststoffgranulats |
ITUA20163918A1 (it) * | 2016-05-30 | 2017-11-30 | Sacmi | Metodo e apparato per produrre oggetti in materiale polimerico. |
JP2023538623A (ja) | 2020-08-18 | 2023-09-08 | エボニック オペレーションズ ゲーエムベーハー | (硬質)パーティクルフォームを製造するための、高めた水温での水中ペレット化による高温ポリマーをベースとするペレットの製造 |
DE102022107129A1 (de) * | 2022-03-25 | 2023-09-28 | Johannes Wissing | Verfahren und Anordnung zur Energie-Rückgewinnung beim Extrudieren |
AT526070B1 (de) | 2022-10-19 | 2023-11-15 | Econ Gmbh | Vorrichtung zur druckwasserbeaufschlagten Unterwassergranulierung von Kunststoffen bei einer Prozesswassertemperatur von über 100 °C |
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-
2009
- 2009-12-15 PL PL09801160T patent/PL2361174T3/pl unknown
- 2009-12-15 JP JP2011539966A patent/JP5635006B2/ja active Active
- 2009-12-15 EP EP09801160.4A patent/EP2361174B1/de active Active
- 2009-12-15 US US13/139,972 patent/US20120256341A1/en not_active Abandoned
- 2009-12-15 ES ES09801160.4T patent/ES2529059T3/es active Active
- 2009-12-15 WO PCT/EP2009/008996 patent/WO2010072361A1/de active Application Filing
- 2009-12-16 TW TW098143117A patent/TWI513562B/zh active
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WO2008110290A1 (de) * | 2007-03-15 | 2008-09-18 | Automatik Plastics Machinery Gmbh | Verfahren zur granulierung und kristallisation von thermoplastischen polymeren |
Also Published As
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EP2361174B1 (de) | 2014-11-05 |
WO2010072361A1 (de) | 2010-07-01 |
PL2361174T3 (pl) | 2015-04-30 |
JP2012512051A (ja) | 2012-05-31 |
EP2361174A1 (de) | 2011-08-31 |
ES2529059T3 (es) | 2015-02-16 |
JP5635006B2 (ja) | 2014-12-03 |
DE102008062480A1 (de) | 2010-06-17 |
US20120256341A1 (en) | 2012-10-11 |
TW201034827A (en) | 2010-10-01 |
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