CN1069675A - 处理废薄膜的设备和方法 - Google Patents
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Abstract
一种再处理废薄膜的实用设备和方法,该设备包
括用于分离进入的废薄膜片和空气的薄膜——空气
分离室,用于将废薄膜片切成细碎的小片的粉碎机,
废薄膜碎片将被运至的储存仓室或下一步的再处理
装置。具有计算机操纵的阀门的空气旁通管在阀门
开着时将空气从薄膜——空气分离室直接导入粉碎
机出口,而在阀门关闭时导致所有空气流入粉碎机入
口。空气旁通阀的开或关取决于粉碎机马达的功
率。仅需一个鼓风机即可将废薄膜运入并运出薄膜
——空气分离室和粉碎机。
Description
本发明一般涉及废薄膜,包括塑料薄膜和纸膜,更确切地说涉及一种重复利用废薄膜的实用的设备和方法。
在生产薄的、连续的膜状片材的传统工艺中,为了得到宽度一致的成品卷,用薄膜纵切机切下片材的边缘。通常将边缘废料回收并用于生产新的薄膜片材。
废薄膜的重复利用可在薄膜生产点进行或是在很远的地方进行。人经济角度考虑,废薄膜的再利用最常见的就是在薄膜的生产点进行。在就地循环工艺中,从薄膜产品片材上切下来的边缘废料被立即送入粉碎机,将废料切成小碎片,为下一道工序做为准备。
将废薄膜运入和运出粉碎机的常用设备包括在粉碎机上游用于将薄膜吹入粉碎机的一个鼓风机,以及在粉碎机下游用于将切割后的碎片从粉碎机中排出的另一个鼓风机。此外,在鼓风机与粉碎机之间于粉碎机的上游还装有一个旋流器。这样,为了将上述边缘废料喂入粉碎机并将切割碎片吸出去,常规设备必需包括购买设备和进行维修所需费用,以及两个鼓风机和一个旋流器所消耗的能量。
本发明的一个目的是提供一种重新加工废薄膜,包括塑料膜和纸腊的实用设备和方法。
本发明的另一个目的是提供一种比常规设备和方法需要更少装置的、重新加工废薄膜的设备和方法。
本发明的其他目的一部分是显而易见的,一部分将在下面做更详细地说明。
本发明的一种优选形式是一咱处理废薄膜、包括塑料膜和纸膜的设备和方法,其中,仅用一个鼓风机将废弃机材料运入和运出废薄膜粉碎机。该设备包括一个吹气装置,狭长的边缘碎片或碎片被喂入其中。将薄膜碎片送入一个薄膜-空气分离器,并向前送入一个由马达驱动的薄膜粉碎机中。粉碎机马达的动力根据粉碎机中薄膜的量自动变化。薄膜在粉碎机中被切成碎片,然后从粉碎机的出口送入一储存仓室,或者也可以进入下一道再处理装置。将材料运入和运出粉碎机的鼓风机安装在粉碎机向下游。
空气旁通管直接将吹风装置与薄膜粉碎机的出口端连在一起。为了控制空气的流速,空气旁通管上设有一控制阀。控制阀的状态随着粉碎机马达功率的增减而成比例地变化。更具体地说,粉碎机马达功率的变化由与控制装置相连的传感器感应到,以高速控制阀的状态。当粉碎机马达功率小,即在起动期间和薄膜粉碎机比较空时,控制阀打开以便将更多的薄膜吸入粉碎机。当粉碎机马达功率大,即当薄膜粉碎机中有较多细碎的碎片时,控制阀关闭,以便将薄膜吸出粉碎机。当粉碎机在稳定状态下运行时,控制阀最好关闭。因为控制阀的自动化控制,可以准确控制粉碎机中气流的速度,仅需一个鼓风机即可将边缘料送入吹风装置并运出薄膜粉碎机。
本发明,自然包括设备和方法的特点、性质以及各部件的联系将在下文举例加以详细说明。
附图中:
图1是本发明的包括薄膜运送装置的示意图,可将其用于实施本发明的方法。
下面结合图1详细说明,其中,同样的编号表示相同的或类似的部件,废薄膜处理装置整体上被编为10号。装置10包括一个废薄膜入口 管12,当废薄膜由边缘纵切机11从薄膜产吕片材(未示出)的边缘上切下来后,被直接送入该入口管。该入口管12可以由任何适宜的材料制成,如金属管材,其直径与可随意变化以适于运送废薄膜。
废薄膜入口管12将废薄膜导入薄膜空气分离器14。分离器14的下端有一个出口16,它将薄膜-空气混合物送入废薄膜粉碎机20的入口18。在这里将废薄膜切成细小的颗粒。废薄膜粉碎机20由一台固定功率高达300马力的马达21驱动。由马达所抽的气流总是随着废薄膜粉碎机20中废薄膜体积的增加而增加,并随着废薄膜粉碎机20中废薄膜体积的减少而减少。细碎后的薄膜从粉碎机20的出口端22处沿粉碎机管状输出管或排放管路23排出废薄膜粉碎机20,并通过疏松仓室26上方的旋流器28将其送入疏松仓室26中。仓室26储存细碎的废薄膜,并可通过仓室排放管30均匀地将其放入造球机32中,在这里将废薄膜制成球状。囊状的薄膜球被放进球输出管34,这种球适于在进一步处理后制成新的塑料制品。
鼓风机24安装在废薄膜粉碎机20和疏松仓室26之间。鼓风机24将废薄膜从边缘纵切机上运走,即沿废薄膜输入管12进入薄膜-空气分离器14、废薄膜粉碎机20,并沿粉碎机输出管23使其进入旋流器28。将旋流器28安装成利用重力给疏松仓室26供料。就在本过程的第一阶段中输送废薄膜而言,即从边缘纵切机11至粉碎机20而言,无需于粉碎机20的上游另设一台鼓风机,因为薄膜粉碎机20下游的鼓风机24能够将废薄膜吸入粉碎机20。分离器14是一种常规装置,包括防止薄膜进入空气旁通管36的装置。由于能够精确控制通过薄膜粉碎机20的气流速度,一个鼓风机24就足以将废水薄膜由边缘纵切机11通过废薄膜处理设备10运送到旋流器28。
因为包括了一个空气旁通管36,废薄膜粉碎机20里的气流速度是连续、自动可调的。该空气旁通管从薄膜-空气分离室14处直接通至废薄膜粉碎机20的出口端22。空气旁通管36上有一个可在开位和关位之间移动的控制阀38。在优选实施例中,该控制阀在两种状态,即全开和全关之间变化,此处,还可以有一个控制阀能调至各种部分打开或部分关闭的状态。
控制阀38的开位或关位是由阀门控制器40调节的。阀门控制器40根据由固态马达功率传感器42感应到的马达21的输出功率,有选择地打开和关闭阀门。当马达21以接近其大功率的工况运转时,控制阀38关闭,以将空气直接吸到粉碎机的出口端22,从而将废薄沿粉碎机输出管23吸出粉碎机20,以免废薄膜粉碎机发生堵塞。当马达21在较小功率下运行时,阀38打开,以将更多的废薄膜运入废薄膜粉碎机20。无论旁通阀打开还是关闭输运废薄膜的动力都是一样的,即,通过设备10使空气和废薄膜向疏松仓室26运动的压力差是一样的。在起动期间,控制阀38反复打开和关闭。在稳定运行时,控制阀38最好保持关闭。
阀闭控制器40是计算机化的,并可编成在开位和关位之间,和在各种马达功率水平上变化的程序。当马达功率低于某一特定值时,例如 20马力,阀门控制器40最好将阀门38打开可保持开的状态,而当马达功率高于20马力或其它预定的功率时,关闭阀门38或保持关闭状态。马达的功率根据废薄膜粉碎机20中薄膜的体积自动改变。
实施例
将用常规纵切机从薄膜制品卷上切下来的聚乙然(或其它种类的塑料)废薄膜狭条通过5英寸的管道以5000英尺/分的速度经过一薄膜-空气分离器运送到一台由Andritz Sprout-Baner有限公司制造的具有30马力马达的DSF512型薄膜粉碎机,并由粉碎机里出来进入疏松仓室,。仅用一台位于粉碎机下游、疏松仓室上游的鼓风机 就可将废薄膜条从纵切机运送到疏松仓室。在起动期间,当粉碎机的功率超过18马力时,空气旁通管上的控制阀关闭,使得空气以800英尺3/分的流速从分离器顶部流至粉碎机的出口。该气流将薄膜经由粉碎机出口吸出粉碎机并向前到达疏松仓室。通过用伏特计监测三个动力相中的每一相测出马达的功率,并测出一相的电流以确定马力。阀门控制器是常用来监测电力的市售元件的组合,并为空气操纵的阀门供能。
单个鼓风机的费用和能耗大约为用于常规装置上两个鼓风机的费用和能耗的一半。
本领域技术人员不难看出,在不脱离本发明精神和情况下,可以对本发明设备和方法做各种改进和修改,本发明的保护范围由所附的权利要求限定。
Claims (16)
1、一种处理废薄膜的设备,包括:
具有一入口和一出口的薄膜-空气分离装置;
薄膜粉碎装置,其入口端不固定地与薄膜-空气分离装置的出口相连,其出口端不固定地与排放管路相连,该薄膜粉碎装置包括一粉碎机和驱动该粉碎机的马达,马达的动力输出根据粉碎机中废薄膜的量而变化;
直接连接在薄膜-空气分离装置和薄膜粉碎装置出口端的空气帝通装置,该空气旁通装置包括一气流控制阀;
用于检测粉碎机马达的输出功率并提供显示输出功率的输出信号传感装置;
根据来自传感装置的输出信号操纵控制阀的控制装置;以及
气动输送装置,用于将废薄膜送到薄膜-空气分离装置、送入并运出薄膜粉碎装置、并通过排放管路。
2、如权利要求1所述的设备,其特征在于气动输送装置包括一个位于薄膜粉碎装置排放管路与至少一个薄膜储存装置及一个薄膜再处理装置之间的鼓风机。
3、如权利要求1所述的设备,其特征在于控制装置在粉碎机马达功率小的时候将控制阀调到有气流的开位,而当粉碎机马达功率大时将控制阀调到无气流的关位。
4、如权利要求1所述的设备,其特征在于控制装置包括一台计算机。
5、如权利要求3所述的设备,其特征在于在该设备稳定运行期间控制装置保持控制阀处于关闭状态。
6、如权利要求3所述的设备,其特征在于控制阀可在至少一种开位与一种关位之间移动。
7、如权利要求1所述的设备,其特在于排放管路与薄膜储存装置相连。
8、如权利要求1所述的设备,其特征在于排放管路与薄膜再处理装置相连。
9、如权利要求1所述的设备,其特征在于所述薄膜是塑料的。
10、一种处理废薄膜的设备,包括:
用于分离空气和废薄膜的薄膜-空气分离室,该分离室有一个入口和一个出口;
用于从薄膜-空气分离室接收废薄膜并粉碎废薄膜的粉碎机,该粉碎机具有一与薄膜-空气分离室的出口相连的入口端和一出口端,该粉碎机由一台其输出功率可根据粉碎机中废薄膜的量而发生变化的马达驱动;
直接将薄膜-空气分离室与粉碎机出口端相连的空气旁通管,该空气旁通管上具有一个控制其中气流速度的控制阀;
不固定地与粉碎机的出口端相连的排放管路;
将废薄膜送入薄膜-空气分离室入口、通过粉碎机、通过排放管路的第一输送装置,该第一输送装置仅由一个鼓风机构成;以及
根据粉碎机马达的输出功率控制控制阀开关或关的计算机化控制装置。
11、如权利要求10所述的设备,其特征在于所述鼓风机位于粉碎机与储存仓室之间。
12、如权利要求10所述的设备,其特征在于当粉碎机马达输出功率小时控制阀打开,而当粉碎机马达输出功率大时控制阀关闭。
13、一种处理废薄膜的方法,包括:
利用第一输送装置将废薄膜运送到薄膜-空气分离装置;
利用第一输送装置将废薄膜由薄膜-空气分离装置运送到粉碎装置,该粉碎装置具有一入口端、一出口端和一台马达,马达的输出功率随着粉碎装置中废薄膜量的变化而改变;以及
利用第一输送装置通过一排放管路运送粉碎的废薄膜;
其特征在于废薄膜通过薄膜-空气分离装置、粉碎装置和排放管路的流速,是通过在开位和关位之间正确调节直接连通薄膜-空气分离装置和粉碎装置的出口端的空气旁通管上的空气旁通阀的位置来控制的;和
第一输送装置包括不是超过一个的鼓风机。
14、如权利要求13所述的方法,其特征在于空气旁通阀可在开位与关位之间运动,空气旁通阀的位置随粉碎装置马达功率的变化而成比例的变化。
15、如权利要求13所述的方法,其特征在于,还包括当粉碎装置的马达功率小时打开空气旁通阀,当粉碎装置的马达功率大时关闭空气旁通阀的步骤。
16、一种在废薄膜重复利用***中减少气动输送装置的能耗的方法,该***具有一个与薄膜粉碎装置相连的空气分离装置,该薄膜粉碎装置具有一个入口端、一个出口端和一个马达驱动的粉碎机,粉碎机马达的功率根据薄膜粉碎装置中的薄膜数量的变化而变化,该方法包括以下步骤:
设置一空气旁通装置,用以将空气由空气分离室直接导入薄膜粉碎机的出口端,该空气旁通装置有一个控制阀,控制阀的开或关的状态随着粉碎装置马达功率的波动而变化,当粉碎装置马达的功率小时阀门打开,当粉碎装置马达的功率大时阀门关闭;
设置不超过一个的鼓风机以将废薄膜运入和运出空气分离装置和薄膜粉碎装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/746,357 US5170949A (en) | 1991-08-16 | 1991-08-16 | Apparatus and method for processing scrap film |
US746,357 | 1991-08-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1069675A true CN1069675A (zh) | 1993-03-10 |
CN1025161C CN1025161C (zh) | 1994-06-29 |
Family
ID=25000494
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN92109266A Expired - Fee Related CN1025161C (zh) | 1991-08-16 | 1992-08-15 | 处理废薄膜的设备和方法 |
Country Status (8)
Country | Link |
---|---|
US (2) | US5170949A (zh) |
EP (1) | EP0528184A1 (zh) |
JP (1) | JPH05277464A (zh) |
KR (1) | KR950010976B1 (zh) |
CN (1) | CN1025161C (zh) |
AU (1) | AU643145B2 (zh) |
CA (1) | CA2069771C (zh) |
MX (1) | MX9204733A (zh) |
Cited By (2)
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CN102285020A (zh) * | 2011-07-19 | 2011-12-21 | 新乐华宝塑料机械有限公司 | 塑料薄膜边料在线回收*** |
CN105619748A (zh) * | 2014-11-06 | 2016-06-01 | 广东联塑机器制造有限公司 | 一种高速流延膜生产设备 |
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US5367952A (en) * | 1993-06-14 | 1994-11-29 | The Furukawa Electric Co., Ltd. | Apparatus for handling lug scrap strips from metallic strip slitters |
KR20000051262A (ko) * | 1999-01-20 | 2000-08-16 | 한영수 | 가죽표면을 갖는 하우징 부품 및 그 제조방법 |
US6259222B1 (en) | 1999-02-26 | 2001-07-10 | Alan K. Kira | Device and method for regulating maximum loading on an electric motor in an aggregate feed replenishing system |
CZ2003852A3 (en) * | 2000-09-26 | 2004-04-14 | Krone Gmbh | Coupling device for glass fiber connectors |
EP1409142A1 (en) * | 2001-06-08 | 2004-04-21 | Tommin Enterprises, LLC | Pressure differential material transport and disposal system |
KR100446601B1 (ko) * | 2001-06-27 | 2004-09-04 | 박성태 | 수지재료의 사출성형용 금형 |
FR2929948B1 (fr) * | 2008-04-09 | 2010-09-24 | Toray Plastics Europ | Film plastique extrude charge en particules metalliques, procede d'obtention et utilisations dudit film |
US8523093B1 (en) * | 2011-04-14 | 2013-09-03 | Liviu Siladi | System for separating a plastic waste from a paper waste |
ITTO20120951A1 (it) * | 2012-10-29 | 2014-04-30 | Rimor Srl | Ciclone separatore a doppio ventilatore per aspirazione rifili plastici e rilancio dei granulati a portata ridotta. |
CN104070617A (zh) * | 2013-03-26 | 2014-10-01 | 防城港市港口区宏达塑料厂 | Bopa生产边料回收*** |
KR102323477B1 (ko) | 2017-04-04 | 2021-11-10 | 삼성디스플레이 주식회사 | 윈도우 성형장치 및 이를 이용한 윈도우 성형방법 |
CN109016232A (zh) * | 2018-07-02 | 2018-12-18 | 安徽致达包装有限公司 | 一种pe膜打孔碎料的回收方法 |
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-
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- 1991-08-16 US US07/746,357 patent/US5170949A/en not_active Expired - Fee Related
-
1992
- 1992-05-28 CA CA 2069771 patent/CA2069771C/en not_active Expired - Fee Related
- 1992-06-15 AU AU18258/92A patent/AU643145B2/en not_active Ceased
- 1992-07-18 EP EP19920112316 patent/EP0528184A1/en not_active Withdrawn
- 1992-07-24 KR KR1019920013253A patent/KR950010976B1/ko active IP Right Grant
- 1992-08-14 MX MX9204733A patent/MX9204733A/es unknown
- 1992-08-14 JP JP23902392A patent/JPH05277464A/ja active Pending
- 1992-08-15 CN CN92109266A patent/CN1025161C/zh not_active Expired - Fee Related
- 1992-09-02 US US07/939,052 patent/US5307998A/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102285020A (zh) * | 2011-07-19 | 2011-12-21 | 新乐华宝塑料机械有限公司 | 塑料薄膜边料在线回收*** |
CN105619748A (zh) * | 2014-11-06 | 2016-06-01 | 广东联塑机器制造有限公司 | 一种高速流延膜生产设备 |
CN105619748B (zh) * | 2014-11-06 | 2018-11-02 | 广东联塑机器制造有限公司 | 一种高速流延膜生产设备 |
Also Published As
Publication number | Publication date |
---|---|
JPH05277464A (ja) | 1993-10-26 |
KR930004045A (ko) | 1993-03-22 |
CA2069771C (en) | 1996-04-16 |
EP0528184A1 (en) | 1993-02-24 |
AU643145B2 (en) | 1993-11-04 |
AU1825892A (en) | 1993-02-18 |
CA2069771A1 (en) | 1993-02-17 |
US5307998A (en) | 1994-05-03 |
CN1025161C (zh) | 1994-06-29 |
US5170949A (en) | 1992-12-15 |
MX9204733A (es) | 1993-07-01 |
KR950010976B1 (ko) | 1995-09-26 |
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