CN107438471B - 过滤袋密封方法和通过该方法密封的过滤袋 - Google Patents
过滤袋密封方法和通过该方法密封的过滤袋 Download PDFInfo
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- 238000000926 separation method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/111—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/0093—Making filtering elements not provided for elsewhere
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/012—Making filtering elements
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
一种在过滤材料的缝合接头处密封过滤袋的方法,包括由至少一个过滤材料片形成过滤袋,其中结合的至少一个过滤材料边缘的表面以如此的方式被密封剂的液体或半液体层覆盖,使得结合的过滤材料边缘至少在被密封剂覆盖的表面上彼此接触。在已被施加密封剂层之后,预先制备的过滤袋元件通过将它们用缝线缝合而永久地组合在一起。由至少一个过滤材料片形成的过滤袋的特征在于下述事实,即在缝合部位处在组合的过滤材料边缘(2)和(3)的邻接表面之间存在在缝合之前施加的密封剂层(4),其中所述至少一个过滤材料片的边缘通过缝线(5)通过至少一个线迹结合在一起。
Description
技术领域
本发明的主题是袋式过滤袋(baghouse filter bag)的密封方法和通过该方法密封的过滤袋。
背景技术
由各种材料和各种设计制成的过滤袋用于集尘设备以及技术装置中,并且预期用于灰尘分离或产品运输。它们几乎用于所有行业分支中:能源和燃料、冶金、机电、电子、化工、轻工、食品、制药、木材、造纸行业。
从美国专利说明书第US5156661号已知的袋式过滤袋的材料接头的密封方法包括通过接缝结合过滤材料边缘,然后通过覆盖接缝来密封缝合处,以及用热塑性带将两个相邻的过滤材料边缘结合在一起,然后用过滤材料焊接所述带。
通常用于过滤袋接缝的层压体的是聚四氟乙烯PTFE带。在缝合部位处将单层或多层PTFE带施加到袋的外侧工作侧,然后使其经受高达约800℃的高温暴露。
在使用耐低温性过滤材料的情况下,不能应用过滤袋密封的这种方法。PTFE层压体基本上只能用于由PTFE纤维制成的过滤材料或用PTFE膜覆盖的过滤材料。在由PTFE以外的纤维制成的剩余过滤材料的情况下,仅在使用具有胶层的PTFE带时才可能进行接缝覆盖。这种解决方案的缺点是在PTFE带中使用的胶的耐低温性,并且其不能用于结合由PTFE纤维以外的纤维制成的大多数过滤材料。
用于密封过滤袋中的过滤材料接头部位的另一种方法包括用硅树脂层(siliconelayer)覆盖接缝。类似于在使用PTFE带的情况那样,硅树脂被施加到在缝合部位处组合在一起的过滤袋元件上或现成的过滤袋上。
将PTFE层压体或硅树脂层施加到过滤袋外表面上的两种解决方案的缺点是密封的低机械阻力和其易于从袋表面分离,结果是过滤器完整性损失以及由脱落的密封点污染产品的可能性。在使用的解决方案中,将密封层施加到现成的袋上,使其难以有效地覆盖过滤材料的所有接合点。此外,在一些袋设计中,所使用的解决方案不允许在结合的材料边缘不重叠的部位处的材料间空间的有效密封,例如在缝有圆形底部的袋中。
袋式过滤袋可由一个或多个过滤材料片制成,其通过缝线缝合以确保最佳可能的接缝密封性的方式永久地结合在一起。
最简单的设计从美国专利说明书第US4959045号中已知。矩形过滤材料片沿着与矩形的轴线平行的线折叠,其从该轴线稍微偏移,使得一个材料边缘在缝合之后略微突出超过另一个材料边缘。突出的边缘被弯曲以覆盖较短的边缘并且用包缝接缝完成。
袋的底部部分以相同的方式组合,而顶部部分保持打开。在一些解决方案中,开放的顶部袋边缘被从内向外翻转出并缝合以形成通道。经常使用的过滤袋设计是通过将矩形过滤材料片的较长的边缝合在一起并在一侧上缝合到圆形元件中形成底部而获得的开放的管形状。具有预期用于在过滤单元中安装袋的内部元件的通道可被缝合到管的开放的顶部部分。所有过滤材料接头都用上述方法密封。
发明内容
本发明的目的是设计一种克服上述缺点的过滤袋密封的有效方法和通过该方法密封的过滤袋。
一种过滤袋密封方法,其中:由至少一个过滤材料片形成过滤袋,结合的过滤材料边缘用缝线缝合,并且缝合部位被密封,其特征在于下述事实,即结合的至少一个过滤材料边缘的表面被密封剂的液体或半液体层覆盖,然后至少在被密封剂覆盖的表面上将过滤材料边缘组合成彼此邻接,并且在密封剂已被施加之后将结合的过滤材料边缘缝合到一起。
当密封剂是液体或半液体硅树脂时是有利的。
由至少一个过滤材料片形成的过滤袋的特征在于下述事实,即在缝合部位处在组合的过滤材料边缘的邻接表面之间存在在缝合之前施加的密封剂层,其中所述至少一个过滤材料片的边缘通过缝线通过至少一个线迹永久地结合。
当过滤材料是过滤织物(filtration fabric)、无纺布或针刺毡时是有利的。
根据本发明的过滤袋密封方法确保所有过滤材料接合点的有效密封,消除对过滤过程中使用的产品和介质的密封的直接暴露以及由密封材料污染产品的相关可能性。其还可确保更长的密封寿命,并可用于所有类型和设计的由任何过滤材料制成并通过缝合结合的袋。
附图说明
根据本发明的过滤袋密封方法和通过该方法密封的过滤袋的设计将在附图中所示的实施例的基础上更详细地解释说明,其中:
图1示出过滤袋的视图;
图2是沿A-A线的过滤袋的横截面;
图3是从底侧在轴向截面上的过滤袋的局部视图;
图4是从开放的袋部分侧在轴向截面上的过滤袋的局部视图;
图5是在袋的增强件处的在轴向截面上的过滤袋的局部视图。
具体实施方式
管1由过滤织物2和3的较长的边重叠而由矩形过滤织物片形成。首先将液体或半液体硅树脂层4施加到过滤织物边缘2和3的邻接表面上。在硅树脂固化之后,重叠的过滤织物边缘与将袋子的接头密封在它们之间的硅树脂层4用缝线5缝合在一起。在缝合期间在与被加热的针接触的影响下,穿刺部位用硅树脂硫化(vulcanised)。随后,将由过滤织物制成的通道6缝合到开放的顶管部分1,用于将袋密封紧固在过滤单元中的双串珠条带和卡扣条带放置在通道6那里。为了做到这一点,硅树脂层4被施加到通道6的内边缘和管1的顶部边缘的两个表面上。在硅树脂固化之后,管1的顶部边缘被插入到通道6的边缘之间并且两个元件被结合:通道6和管1通过缝线5缝合在一起。当将过滤袋的底部7和增强件8缝合在管1的底部时接着进行类似的过程。将硅树脂层4施加到管1的底部边缘的两个表面上,以及施加到管1的圆形底部7的边缘表面上以及施加到增强件8的表面上,在它们结合之后它们与管1的表面接触。在硅树脂固化之后,上述元件以图3所示的方式结合,并用缝线5缝合。硅树脂层4,特别是在底部7边缘的表面与邻接管1的底部边缘的内表面之间的硅树脂层4,确保有效地密封过滤材料层之间的空间,这在用硅树脂层覆盖接缝的外表面的同时或者用热塑性带层压接缝的同时是不可能实现的。为了增强过滤袋的中间部分,在管的外表面的周边上缝合由过滤织物条制成的环9,同时预先将硅树脂层4施加到邻接的表面上,并且在硅树脂层4固化之后将两个元件缝合到一起。
Claims (5)
1.一种过滤袋的密封方法,其中:由至少一个过滤材料片形成过滤袋,结合的过滤材料边缘用缝线缝合,并且缝合部位被密封,其特征在于下述事实,即结合的至少一个过滤材料边缘的表面被密封剂的液体或半液体层覆盖,然后至少在被密封剂覆盖的表面上将过滤材料边缘组合成彼此邻接,并且在密封剂已被施加之后将结合的过滤材料边缘缝合到一起,所述密封剂是液体或半液体硅树脂,并且在硅树脂固化之后缝合,其中在缝合期间穿刺部位与被加热的针接触,所述穿刺部位用硅树脂硫化。
2.由至少一个过滤材料片形成的过滤袋,其中所述至少一个过滤材料片的边缘通过缝线通过至少一个线迹永久地结合,其特征在于下述事实,即在缝合部位处在组合的过滤材料边缘(2)和(3)的邻接表面之间存在在缝合之前施加的密封剂层(4),所述密封剂是液体或半液体硅树脂,并且在硅树脂固化之后缝合,其中在缝合期间穿刺部位与被加热的针接触,所述穿刺部位用硅树脂硫化。
3.根据权利要求2所述的密封袋,其特征在于下述事实,即所述过滤材料是过滤织物。
4.根据权利要求2所述的密封袋,其特征在于下述事实,即所述过滤材料是无纺布。
5.根据权利要求2所述的密封袋,其特征在于下述事实,即所述过滤材料是针刺毡。
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PLP.412004 | 2015-04-15 | ||
PL412004A PL237799B1 (pl) | 2015-04-15 | 2015-04-15 | Sposób uszczelnienia worka filtracyjnego i worek filtracyjny |
PCT/PL2016/000039 WO2016167678A1 (en) | 2015-04-15 | 2016-04-11 | A filter bag sealing method and a filter bag sealed therewith |
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CN107438471B true CN107438471B (zh) | 2020-10-09 |
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US (1) | US10661204B2 (zh) |
EP (1) | EP3283190B8 (zh) |
CN (1) | CN107438471B (zh) |
ES (1) | ES2729025T3 (zh) |
LT (1) | LT3283190T (zh) |
PL (2) | PL237799B1 (zh) |
PT (1) | PT3283190T (zh) |
RU (1) | RU2760308C9 (zh) |
TR (1) | TR201906868T4 (zh) |
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US10384155B1 (en) * | 2013-08-21 | 2019-08-20 | Enpac, L.L.C. | Storm drain sediment filter |
US11904261B2 (en) | 2021-01-28 | 2024-02-20 | Rosedale Products | Backflush filter assembly |
US11969674B2 (en) * | 2022-06-03 | 2024-04-30 | Todd Ewing | Liquid filtering bag |
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CN103874793A (zh) * | 2011-09-21 | 2014-06-18 | 唐纳森公司 | 由用树脂质醛组合物交联聚合物制成的细纤维 |
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SU117347A1 (ru) * | 1958-04-03 | 1958-11-30 | В.Н. Павлов | Матерчатый фильтр дл очистки воздуха |
US3419151A (en) | 1966-11-15 | 1968-12-31 | American Felt Co | Strainer bag construction |
SU360952A1 (ru) * | 1970-07-20 | 1972-12-07 | Государственный научно исследовательский институт | Зная |
IE56164B1 (en) | 1984-12-21 | 1991-05-08 | Philip Joeph Hartley | Improvements in and relating to filter socks |
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US5205938A (en) * | 1992-03-12 | 1993-04-27 | Pall Corporation | Polyester bag filter |
WO2003053678A1 (en) * | 2001-10-02 | 2003-07-03 | Ilc Dover, Inc. | Method of sealing a sewn seam |
JP5060873B2 (ja) * | 2007-08-24 | 2012-10-31 | 東レ・ダウコーニング株式会社 | シリコーン系感圧接着剤組成物および感圧接着テープもしくはシート |
CN201709474U (zh) * | 2010-05-24 | 2011-01-19 | 广东溢达纺织有限公司 | 一种表面无缝线的成衣接缝 |
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2016
- 2016-04-11 WO PCT/PL2016/000039 patent/WO2016167678A1/en active Application Filing
- 2016-04-11 CN CN201680021571.0A patent/CN107438471B/zh active Active
- 2016-04-11 UA UAA201710556A patent/UA123579C2/uk unknown
- 2016-04-11 US US15/564,705 patent/US10661204B2/en active Active
- 2016-04-11 PL PL16722964T patent/PL3283190T3/pl unknown
- 2016-04-11 ES ES16722964T patent/ES2729025T3/es active Active
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- 2016-04-11 EP EP16722964.0A patent/EP3283190B8/en active Active
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Patent Citations (1)
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CN103874793A (zh) * | 2011-09-21 | 2014-06-18 | 唐纳森公司 | 由用树脂质醛组合物交联聚合物制成的细纤维 |
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Publication number | Publication date |
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WO2016167678A1 (en) | 2016-10-20 |
UA123579C2 (uk) | 2021-04-28 |
PL3283190T3 (pl) | 2019-07-31 |
RU2760308C9 (ru) | 2022-03-18 |
PL237799B1 (pl) | 2021-05-31 |
US20180071661A1 (en) | 2018-03-15 |
LT3283190T (lt) | 2019-08-12 |
US10661204B2 (en) | 2020-05-26 |
CN107438471A (zh) | 2017-12-05 |
EP3283190B1 (en) | 2019-03-06 |
RU2760308C2 (ru) | 2021-11-23 |
ES2729025T3 (es) | 2019-10-29 |
RU2017139926A3 (zh) | 2019-05-24 |
PL412004A1 (pl) | 2016-10-24 |
RU2017139926A (ru) | 2019-05-15 |
PT3283190T (pt) | 2019-06-14 |
EP3283190A1 (en) | 2018-02-21 |
TR201906868T4 (tr) | 2019-05-21 |
EP3283190B8 (en) | 2019-07-10 |
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