WO2020082695A1 - 双层滤料及滤袋 - Google Patents

双层滤料及滤袋 Download PDF

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WO2020082695A1
WO2020082695A1 PCT/CN2019/082798 CN2019082798W WO2020082695A1 WO 2020082695 A1 WO2020082695 A1 WO 2020082695A1 CN 2019082798 W CN2019082798 W CN 2019082798W WO 2020082695 A1 WO2020082695 A1 WO 2020082695A1
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layer
filter
filter layer
double
fiber
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PCT/CN2019/082798
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English (en)
French (fr)
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宋朋泽
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浙江鸿盛环保科技集团有限公司
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Priority to JP2021517580A priority Critical patent/JP7266671B2/ja
Publication of WO2020082695A1 publication Critical patent/WO2020082695A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds

Definitions

  • the invention relates to the technical field of industrial smoke filter materials, in particular to a double-layer filter material and a filter bag.
  • the bag-type dust collector is a device that uses a bag-shaped filter element made of fabric to capture solid particles in the dust-containing gas. It is a dry dust filter device that is suitable for collecting fine, dry, non-fibrous dust.
  • This dust removal equipment which has a history of more than 100 years, increasingly perfect and widely used in modern industrial dust removal.
  • the filter material of the bag-type dust collector in the prior art has poor strength, poor filtration effect, and severe chemical corrosion, which seriously affects the dust removal effect of the dust collector.
  • the purpose of the present invention is to provide a double-layer filter material and a filter bag to solve the technical problems in the prior art.
  • the double-layer filter material provided by the present invention includes an upper filter layer and a lower filter layer;
  • the upper filter layer and the lower filter layer are connected by a connection node
  • the high-temperature coating layer is disposed on a side of the upper filter layer away from the lower filter layer, and the high-temperature coating layer is connected to the upper filter layer through the coating layer.
  • the upper filter layer includes an upper meridian and an upper weft
  • the upper warp and the upper weft are interwoven
  • the lower filter layer includes a lower warp and a lower weft
  • the lower warp and the lower weft are interwoven
  • connection node is a connection point that interweaves with the corresponding lower weft thread on the lower filter layer at any position on the upper meridian;
  • connection node is a connection point interlaced at any position on the upper weft line with a corresponding lower layer warp on the lower filter layer.
  • connection node is provided between the upper filter layer and the lower filter layer.
  • filter holes are provided on the upper filter layer, the lower filter layer, the coating layer and the high-temperature coating layer;
  • the diameters of the filter holes on the lower filter layer, the upper filter layer, the coating layer, and the high-temperature coating layer decrease in sequence.
  • the coating layer is PTFE resin.
  • the material of the high-temperature coating layer is a PTFE expanded microporous film.
  • a catalyst is provided in the coating layer.
  • the catalyst is a denitration catalyst and / or a desulfurization catalyst.
  • the material of the upper filter layer is glass fiber, basalt fiber, polyphenylene sulfide fiber, aramid fiber, polyimide fiber and / or polytetrafluoroethylene fiber;
  • the material of the lower filter layer is glass fiber, basalt fiber, polyphenylene sulfide fiber, aramid fiber, polyimide fiber and / or polytetrafluoroethylene fiber.
  • the invention also provides a filter bag, which is made of the double-layer filter material described in any one of the above.
  • the double-layer filter material and the filter bag provided by the invention divide the filter material into a two-layer structure of an upper filter layer and a lower filter layer, and the filter material is reasonably selected according to the different functions of the upper and lower layers, while increasing the strength, it is better To meet the requirements of the working conditions.
  • the high-temperature coating layer, the coating layer, the upper filter layer, and the lower filter layer form a four-stage high-efficiency filter to meet the ultra-low emission requirements of dust.
  • the double-layer filter material of the invention has high filtering precision, high tensile strength and long service life, and is easy to popularize and apply.
  • FIG. 1 is a schematic structural diagram of a double-layer filter material provided by an embodiment of the present invention.
  • Figure 2 is a top view of Figure 1;
  • FIG. 3 is another schematic structural diagram of a double-layer filter material provided by an embodiment of the present invention.
  • 1 upper filter layer
  • 2 lower filter layer
  • 3 connection node
  • 3-1 first connection node
  • 3-2 second connection node
  • 4 coating layer
  • 5 high temperature coating layer
  • 6 catalyst layer.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • installation should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • the present invention provides a double-layer filter material, including an upper filter layer 1, a lower filter layer 2, a coating layer 4 and a high-temperature coating layer 5; the upper filter layer 1 and The lower filter layer 2 is connected by a connection node 3; the high-temperature coating layer 5 is disposed on a side of the upper filter layer 1 away from the lower filter layer 2, and the high-temperature coating layer 5 passes The coating layer 4 is connected to the upper filter layer 1.
  • the filter material is provided in four layers, namely an upper filter layer 1, a lower filter layer 2, a coating layer 4 and a high-temperature coating layer 5.
  • the upper filter layer 1 and the lower filter layer 2 are connected as a whole by a connection node 3, so that there is a gap between the upper filter layer 1 and the lower filter layer 2 and they can be connected together, thereby making the
  • the filter material can not only perform double-layer filtration, but also enhance the strength of the filter material; the high-temperature coating layer 5 is connected to the upper filter layer 1 through the coating layer 4, which can increase the weather resistance and corrosion resistance of the upper filter layer 1, thereby increasing The service life of the double-layer filter material.
  • the “dual layer” of the “double layer filter material” in this article means that the main body of the filter material is two layers, namely the upper filter layer 1 and the lower filter layer 2, however, the main body can also be provided with The functional layers such as the coating layer 4, the high-temperature coating layer 5, and the catalyst layer 6 in the following, do not contradict the name of "double-layer filter material".
  • the high-temperature coating layer 5 is provided with a plurality of filter holes.
  • the setting of the through filter holes can not only ensure the filtration and cleaning performance of the filter material, but also increase the filtering accuracy of the filter material, that is, by controlling the Size to control the filtering accuracy.
  • the high temperature coating layer 5 is a high temperature resistant film.
  • the high temperature coating layer 5 uses a high temperature resistant film, so that the filter material can still perform normal smoke and dust filtration in a high temperature environment, and the service life of the filter material is guaranteed.
  • filter holes are provided on the upper filter layer 1, the lower filter layer 2, the coating layer 4 and the high temperature coating layer 5; the lower filter layer 2, the upper filter layer 1, the coating layer 4 and the high temperature coating
  • the diameters of the filter holes in the membrane layer 5 decrease in sequence.
  • the filter holes on the four layers of filter material together form an inverted V-shaped filter system, and the diameter of the intake end is smaller than the diameter of the exhaust end, which can effectively achieve high-precision filtration and avoid the passage of larger-size dust.
  • This setting can achieve four-stage high-efficiency filtration to meet the requirements of ultra-low emission of dust.
  • connection node 3 does not protrude on both the upper filter layer 1 and the lower filter layer 2 so that it does not appear on the upper surface of the upper filter layer 1 and the lower surface of the lower filter layer 2.
  • a catalyst layer 6 is further provided on the side of the lower filter layer 2 away from the upper filter layer 1, and the catalyst layer 6 can enable the multi-layer filter material to have chemical filtration performance, thereby providing Catalytic filtration effect.
  • the lower filter layer 2 of the multilayer filter material is soaked in the catalyst liquid, and after the lower filter layer 2 is fully contacted with the catalyst, the multilayer filter material After being taken out of the catalyst liquid, the catalyst layer 6 is formed after the catalyst is cooled or solidified.
  • the above-mentioned catalyst layer 6 can also be formed by coating, or the entire multilayer filter material can be immersed in the catalyst liquid. In this case, the formed catalyst layer 6 will not only be distributed in the lower filter layer The first layer of 2 will also be distributed in other positions of the multi-layer filter material to enhance the effect of catalytic filtration.
  • the materials of the coating layer 4 and the high-temperature coating layer 5 are both PTFE, that is, polytetrafluoroethylene.
  • PTFE has a high temperature resistance type, its working temperature can reach 250 °C; it also has good low temperature resistance, even if the temperature drops to -196 °C, it can maintain 5% elongation; while also having Corrosive, showing inertness to most chemicals and solvents, resistant to strong acids and alkalis, water and various organic solvents; weather resistance, having the best aging life in plastics; high lubricity, PTFE is the coefficient of friction in solid materials The lowest; non-adhesive properties, PTFE is the smallest surface tension of solid materials, does not adhere to any substance; non-toxic, PTFE is physiologically inert, as artificial blood vessels and organs implanted in the body for a long time without adverse reactions; and electrical insulation PTFE can resist 1500V high voltage electricity.
  • the coating layer 4 is mixed with the catalyst before being applied to the upper filter layer 1, and the coating layer 4 mixed with the catalyst is applied on the surface of the upper filter layer 1 to form the coating layer 4 so that The coating 4 has a chemical filtering effect.
  • the catalyst may be a desulfurization catalyst, a denitration catalyst, or another type of catalyst, as long as it can chemically filter the flue gas.
  • the upper filter layer 1 includes an upper warp and an upper weft; the upper warp and the upper weft are interwoven; the lower filter layer 2 includes a lower warp and a lower weft; the lower warp and the upper Describe the interlace setting of the lower weft;
  • connection node 3 is a connection point that interweaves with the corresponding lower weft thread on the lower filter layer 2 at any position on the upper meridian;
  • connection node 3 is a connection point that interweaves with a corresponding lower layer warp on the lower filter layer 2 at any position on the upper weft line.
  • connection node 3 can be set in two ways, which are:
  • connection node 3 which connects the upper filter layer 1 and the lower filter layer 2 together, that is, the upper and lower junctions; the upper weft and the lower warp are interwoven to form a connection node 3, which will filter the upper
  • the layer 1 and the lower filter layer 2 are connected together, that is, the bottom is connected to the upper junction.
  • the surface tissue should have a certain length of warp to cover the lower warp (junction); the reverse side of the fabric should have A certain length of weft float length (viewed from the front, the inner tissue is a continuous warp tissue point) to cover the upper weft line (junction); the junction point of the connecting tissue should be arranged in the center of the upper meridian float line.
  • each organization should have the following requirements: the surface organization should have a certain length of latitude and long float to cover the lower latitude line (junction); the reverse side of the organization should have a certain length The longitude of the warp (the longitudinal longitudinal tissue is a continuous weft tissue point from the front) covers the upper meridian (junction).
  • Joint junction is the joint application of "bottom-up” junction and "up-down” junction. It has two kinds of junction organization: “bottom-up” and "up-down”.
  • connection node 3 may be formed by interlacing the upper warp and the lower weft, or the connection node 3 may be formed by interweaving the upper weft and the lower warp, or as shown in FIGS. 1 and 2 As shown, the two methods are used at the same time, that is, at different positions, the upper meridian or the upper weft is connected to the lower filter layer 2 to make the connection between the upper filter layer 1 and the lower filter layer 2 more stable, avoiding The connection in one direction is easy to disconnect.
  • the first connecting node 3-1 is arranged by interweaving the upper warp and the lower weft to form the connecting node; the second connecting node 3-2 is arranged by the upper weft and the The lower layer is interwoven with warp threads to form connection nodes.
  • first connection node 3-1 and the second connection node 3-2 can also be arbitrarily arranged, such as a row of first connection nodes 3-1 and a row of second connection nodes 3-2 Alternatively, the first connection node 3-1 and the second connection node 3-2 may be arranged at intervals in the same row.
  • connection node 3 may be the method as described in this embodiment, but it is not limited to the above method, and it may also be other setting methods of the connection node 3, such as It can be adhesive, etc. That is to say, the connection node 3 can be connected by textile or other means, or it can be connected using other structures or devices to form the connection node 3, as long as the connection node 3 can be used for up-filtering The fixed connection between layer 1 and lower filter layer 2 is sufficient.
  • connection node 3 is provided between the upper filter layer 1 and the lower filter layer 2.
  • connection node 3 is disposed between the upper filter layer 1 and the lower filter layer 2, which can effectively prevent the connection node 3 from protruding on the surfaces of the upper filter layer 1 and the lower filter layer 2, ensuring that Aesthetic appearance.
  • the specific setting method can be as shown in Figure 1, because each position of the double-layer filter material is composed of the upper warp, the upper weft, the lower warp and the lower weft, and their interweaving order changes, but it does not change the overall thickness. , So that the surfaces of the upper filter layer 1 and the lower filter layer 2 will highlight the connection node 3.
  • the double-layer weaving method of the double-layer filter material is as follows:
  • Double warp and double weft structure that is, the support layer is formed by monofilament warp on one side, and the multifilament filter layer is formed by multifilament weft on one side. Cleaning improves filtration efficiency, and has the characteristics of acid resistance, alkali resistance and high temperature resistance.
  • the material of the upper filter layer 1 is glass fiber, basalt fiber, polyphenylene sulfide fiber, aramid fiber, polyimide fiber and / or polytetrafluoroethylene fiber;
  • the material of the lower filter layer 2 is glass fiber, basalt fiber, polyphenylene sulfide fiber, aramid fiber, polyimide fiber and / or polytetrafluoroethylene fiber.
  • the materials used for the double-layer filter material include but are not limited to glass fiber, basalt fiber, polyphenylene sulfide fiber, aramid fiber, polyimide fiber, and polytetrafluoroethylene fiber.
  • the upper filter layer 1 of the double-layer filter material may be made of a single fiber, or may be made by mixing two or more kinds of fibers.
  • the lower filter layer 2 of the double-layer filter material may also be made of a single fiber, or may be made by mixing two or more types of fibers.
  • the materials of the upper filter layer 1 and the lower filter layer 2 may be the same or different, so that the double-layer filter material has the characteristics of various combinations, making it possible to It has strong adaptability to working conditions.
  • the upper filter layer 1 and the lower filter layer 2 have temperature and corrosion resistance, high strength and low elongation, good filter cleaning performance, and low resistance The remarkable characteristics such as long life can be widely used in the field of industrial flue gas filtration.
  • the invention also provides a filter bag, which is made of the double-layer filter material described in any one of the above.
  • using the above-mentioned double-layer filter material to make a filter bag can increase the filtering effect and service life of the filter bag.
  • the double-layer filter material and the filter bag provided by the present invention divide the filter material into a two-layer structure of an upper filter layer 1 and a lower filter layer 2, and further increase the strength, simultaneously perform two filtrations, and increase the filtration effect.
  • the invention has simple structure, convenient use, simple production process, low cost, and is easy to popularize and apply.

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  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

双层滤料及滤袋，双层滤料包括上滤层（1）、下滤层（2）；上滤层（1）和下滤层（2）之间通过连接结点（3）连接；高温覆膜层（5）设置在上滤层（1）远离下滤层（2）的一侧，且高温覆膜层（5）通过涂覆层（4）与上滤层（1）连接。滤袋使用双层滤料制成。将滤料分为了上滤层（1）和下滤层（2）两层结构，根据上下两层的不同作用合理选配滤料材质，在增加了强度的同时，更好的满足工况的使用要求。高温覆膜层（5）、涂覆层（4）、上滤层（1）、下滤层（2）形成四级高效过滤，满足粉尘超低排放要求。

Description

双层滤料及滤袋
本申请要求于2018年10月26日提交中国专利局、申请号为201811261795.6、发明名称为“双层滤料及滤袋”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及工业烟气过滤材料技术领域，尤其是涉及一种双层滤料及滤袋。
背景技术
目前，袋式除尘器是利用织物制作的袋状过滤元件来捕集含尘气体中固体颗粒物的设备，是一种干式滤尘装置，适用于捕集细小、干燥、非纤维性粉尘。新型滤料和各种形式自动清灰方式的出现，使这种已有一百多年历史的除尘设备日臻完善，广泛应用于现代工业除尘。
现有技术中的袋式除尘器的过滤材料，强度差，过滤效果不好，化学腐蚀性严重，从而严重影响了除尘器的除尘效果。
发明内容
本发明的目的在于提供一种双层滤料及滤袋，以解决现有技术中存在的技术问题。
本发明提供的双层滤料，包括上滤层、下滤层；
所述上滤层和所述下滤层之间通过连接结点连接；
所述高温覆膜层设置在所述上滤层远离所述下滤层的一侧，且所述高温覆膜层通过所述涂覆层与所述上滤层连接。
进一步的，所述上滤层包括上层经线和上层纬线；
所述上层经线和所述上层纬线交织设置；
所述下滤层包括下层经线和下层纬线；
所述下层经线和所述下层纬线交织设置；
所述连接结点为所述上层经线上任意位置与所述下滤层上所对应的下层纬线交织的连接点；
和/或，所述连接结点为所述上层纬线上任意位置与所述下滤层上所对应的下层经线交织的连接点。
进一步的，所述连接结点设置在所述上滤层和所述下滤层之间。
进一步的，所述上滤层、所述下滤层、所述涂覆层和所述高温覆膜层上均设置有滤孔；
所述下滤层、所述上滤层、所述涂覆层和所述高温覆膜层上的滤孔的直径依次减小。
进一步的，所述涂覆层为PTFE树脂。
进一步的，所述高温覆膜层的材质为PTFE膨化微孔薄膜。
进一步的，所述涂覆层中设置有催化剂。
进一步的，所述催化剂为脱硝催化剂或和/或脱硫催化剂。
进一步的，所述上滤层的材料为玻璃纤维、玄武岩纤维、聚苯硫醚纤维、芳纶纤维、聚酰亚胺纤维和/或聚四氟乙烯纤维；
和/或，
所述下滤层的材料为玻璃纤维、玄武岩纤维、聚苯硫醚纤维、芳纶纤维、聚酰亚胺纤维和/或聚四氟乙烯纤维。
本发明还提供了一种滤袋，其使用上述任一项所述的双层滤料制成。
本发明提供的双层滤料及滤袋，将滤料分为了上滤层和下滤层两层结构，根据上下两层的不同作用合理选配滤料材质，在增加了强度的同时，更好的满足工况的使用要求。所述高温覆膜层、涂覆层、上滤层、下滤层形成四级高效过滤，满足粉尘超低排放要求。本发明双层滤料过滤精度高、拉伸强度高、使用寿命长，易于推广和应用。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普 通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的双层滤料的结构示意图；
图2为图1的俯视图；
图3为本发明实施例提供的双层滤料的另一种结构示意图。
附图标记：
1：上滤层；2：下滤层；3：连接结点；3-1：第一连接结点；3-2：第二连接结点；4：涂覆层；5：高温覆膜层；6：催化剂层。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如附图1-图3所示，本发明提供了一种双层滤料，包括上滤层1、下滤层2、涂覆层4和高温覆膜层5；所述上滤层1和所述下滤层2之间通过 连接结点3连接；所述高温覆膜层5设置在所述上滤层1远离所述下滤层2的一侧，且所述高温覆膜层5通过所述涂覆层4与所述上滤层1连接。
在本实施例中，滤料设置为四层，分别为上滤层1、下滤层2、涂覆层4和高温覆膜层5。上滤层1和下滤层2之间通过连接结点3连接为一个整体，进而使得上滤层1和下滤层2之间既具有间隙，又能够连接在一起，进而使得本发明中的滤料既能够进行双层过滤，又能够增强滤料的强度；高温覆膜层5通过涂覆层4与上滤层1连接，能够增加上滤层1的耐候性和耐蚀性，进而增加了双层滤料的使用寿命。
需要指出，本文中所述“双层滤料”的“双层”是指滤料的主体为两层，即上滤层1和下滤层2，但是，在该主体上也可以设置诸如涂覆层4、高温覆膜层5以及下文中的催化剂层6等功能层，这与“双层滤料”的名称并不矛盾。
在本实施例中，高温覆膜层5上设置有多个滤孔，通滤孔的设置不仅能够保证滤料的过滤清灰性能，还能够增加滤料的过滤精度，即通过控制滤孔的大小来实现对过滤精度的控制。
优选的实施方式为，高温覆膜层5为耐高温膜。
高温覆膜层5使用耐高温膜，使得滤料能够在高温的环境下，依然能够进行正常的烟尘过滤，保障了滤料的使用寿命。
在本实施例中，上滤层1、下滤层2、涂覆层4和高温覆膜层5上均设置有滤孔；下滤层2、上滤层1、涂覆层4和高温覆膜层5上的滤孔的直径依次减小。
这样的设置，四层滤料上的滤孔共同构成一个倒V型过滤体系，且进气端直径小于排气端直径，能够有效实现高精度过滤，避免较大粒度粉尘通过。
这样的设置，能够实现四级高效过滤，满足粉尘超低排放的要求。
在本实施例，连接结点3在上滤层1和下滤层2上均不突出，使得其在上滤层1上表面和下滤层2的下表面均没有显现。
在本实施例中，如图3所示，在下滤层2远离上滤层1的一侧还设置有催化剂层6，通过催化剂层6能够使得多层滤料的具有化学过滤的性能，进而提供催化过滤效果。
在本实施例中，催化剂层6是通过将催化剂熔化或溶解后，将多层滤料中的下滤层2在催化剂液体内浸泡，在下滤层2与催化剂充分接触后，将多层滤料从催化剂液体内取出，催化剂冷却或固化后，形成催化剂层6。除此之外，也可以通过涂覆的方式形成上述的催化剂层6，或者，还可以将多层滤料整体浸入催化剂液体中，此时，所形成的催化剂层6将不仅仅分布在下滤层2的一层，还将分布在多层滤料的其他位置，以加强催化过滤的效果。
在本发明中，涂覆层4和高温覆膜层5的材质均为PTFE，即聚四氟乙烯。
PTFE具有较好的耐高温型，其使用工作温度能够达到250℃；也同时具有较好的耐低温性，即使温度下降到-196℃，也可保持5％的伸长率；同时还具有耐腐蚀性，对大多数化学药品和溶剂，表现出惰性、能耐强酸强碱、水和各种有机溶剂；耐候性，有塑料中最佳的老化寿命；高润滑性，PTFE是固体材料中摩擦系数最低者；不粘附特性，PTFE是固体材料中最小的表面张力，不粘附任何物质；无毒害性，PTFE具有生理惰性，作为人工血管和脏器长期植入体内无不良反应；以及电绝缘性，PTFE可以抵抗1500伏高压电。
在本实施例中，涂覆层4在向上滤层1涂抹之前，先经过与催化剂混合，将混合有催化剂的涂覆层4在上滤层1表面进行涂抹，形成涂覆层4，使得涂覆层4具有化学过滤作用。
具体的，催化剂可以是脱硫催化剂，也可以是脱硝催化剂，还可以是其他类型的催化剂，其只要能够对烟气进行化学过滤即可。
优选的实施方式为，所述上滤层1包括上层经线和上层纬线；所述上层经线和所述上层纬线交织设置；所述下滤层2包括下层经线和下层纬线；所述下层经线和所述下层纬线交织设置；
所述连接结点3为所述上层经线上任意位置与所述下滤层2上所对应的下层纬线交织的连接点；
和/或，所述连接结点3为所述上层纬线上任意位置与所述下滤层2上所对应的下层经线交织的连接点。
也就是说，在本实施例中，连接结点3可以有两种设置方式，其分别 为：
上层经线与下层纬线交织，形成连接结点3，将上滤层1和下滤层2连接在一起，即上接下接结；上层纬线与下层经线交织，形成连接结点3，将上滤层1和下滤层2连接在一起，即下接上接结。
具体的工艺如下：
(一)“下接上”接结组织的绘制及上机要点
1、“下接上”组织的绘制
(1)选择表里组织。
为使织物表层不暴露下层经线，织物反面不暴露上层纬线，故对其各组织有如下要求：表组织应有一定长度的经浮长遮盖下层经线(接结点)；里组织的反面应有一定长度的纬浮长(从正面看，里组织横向为连续的经组织点)遮盖上层纬线(接结点)；接结组织的接结点要配置在上层经线浮长线的中央。
(2)确定接结组织和里组织的起始点。
(3)计算组织循环数。
(4)标注表下层经线纬序号，并填入表里组织和接结组织。
(5)填入织入下层纬线时上层经线的提升符号。
(二)“上接下”组织的绘制及上机要点
1、“上接下”接结组织的绘制
(1)选择表里组织
为使表面不暴露下层纬线，反面不暴露上层经线，应对其各组织有如下要求：表组织应有一定长度的纬浮长遮盖下层纬线(接结点)；里组织的反面应有一定长度的经浮长(从正面看里组织纵向为连续的纬组织点)遮盖上层经线(接结点)。
(2)确定接结组织和里组织的方法。
(3)计算组织循环数。
(4)标注表、下层经线纬序号，并填入表里组织和接结组织。
(三)联合接结双层组织的绘制及上机要点
联合接结是“下接上”接结和“上接下”接结的联合应用，它具有“下接上”和“上接下”两种接结组织。
具体的设置中，可以只利用上层经线与下层纬线交织形成连接结点3进行连接，也可以是只利用上层纬线与下层经线交织形成连接结点3进行连接，还可以是如图1和图2所示，将两种方式同时使用，即在不同的位置，使用上层经线或上层纬线与下滤层2进行连接，使得上滤层1和下滤层2之间的连接更加的稳定，避免了单一方向的连接容易脱线的问题。
在本实施例中，如图2所示，第一连接结点3-1的设置方式为上层经线与下层纬线交织形成连接结点；第二连接结点3-2的设置方式为上层纬线与下层经线交织形成连接结点。
第一连接结点3-1和第二连接结点3-2的排列方式也可以进行任意排列，如一排第一连接结点3-1，一排第二连接结点3-2的设置方式，也可以是在同一排中间隔设置第一连接结点3-1和第二连接结点3-2。
需要指出的是，连接结点3的设置方式可以是如本实施例中所述的方式，但其不仅仅局限于上述方式，其还可以是有其他的连接结点3的设置方式，如还可以是粘接等，也就是说，连接结点3可以是通过纺织等方式进行连接设置，也可以是使用其他结构或装置进行连接形成连接结点3，只要能够通过连接结点3实现上滤层1和下滤层2之间的固定连接即可。
优选的实施方式为，所述连接结点3设置在所述上滤层1和所述下滤层2之间。
在本实施例中，将连接结点3设置在了上滤层1和下滤层2之间，其能够有效的避免连接结点3在上滤层1和下滤层2的表面凸显，保证了外观的美观性。
具体的设置方式可以是如图1所示，由于双层滤料的每一处位置均是由上层经线、上层纬线、下层经线和下层纬线构成，其交织顺序改变，但不会改变整体的厚度，使得上滤层1和下滤层2的表面会将连接结点3凸显出来。
同时，上层经线与下滤层2中靠近上滤层1的下层纬线交织，如图1和图2所示，此时，由于下层经线的覆盖，使得上层经线不会在下滤层2表面显现出来，同时，下滤层2的下层纬线被上层经线覆盖，也不会在上滤层1的表面显现出来，当上滤层1和下滤层2的材质不相同时，从外表也不会看出。
在本实施例中，双层滤料的双层编织方式如下：
双经双纬结构，即一面由单丝经线形成支撑层，一面由复丝纬线形成复丝过滤层，透气透水不透料，该过滤布表面光滑，耐磨性好，滤饼易脱落，易清洗，提高过滤效率，并具有耐酸、耐碱、耐高温的特性。
优选的实施方式为，所述上滤层1的材料为玻璃纤维、玄武岩纤维、聚苯硫醚纤维、芳纶纤维、聚酰亚胺纤维和/或聚四氟乙烯纤维；
和/或，
所述下滤层2的材料为玻璃纤维、玄武岩纤维、聚苯硫醚纤维、芳纶纤维、聚酰亚胺纤维和/或聚四氟乙烯纤维。
在本实施例中，双层滤料选用的原料包括但不限于玻璃纤维、玄武岩纤维、聚苯硫醚纤维、芳纶纤维、聚酰亚胺纤维和聚四氟乙烯纤维。
在本实施例中，双层滤料的上滤层1可以是单一纤维制成，也可以是两种或两种以上的纤维混合制成。
同理，在本实施例中，双层滤料的下滤层2也可以是单一纤维制成，也可以是两种或两种以上的纤维混合制成。
需要指出的是，在本实施例中，上滤层1和下滤层2的材料可以是相同的，也可以是不相同的，进而使得双层滤料具有组合方式多样的特点，使得其能够对工况具有较强的适应性。
在实施例中，通过上滤层1和下滤层2的材料的选择，使得上滤层1和下滤层2均具有耐温耐腐，高强低伸，过滤清灰性好，低阻高效长寿命等显著特点，可以广泛应用于工业烟气过滤领域。
本发明还提供了一种滤袋，其使用上述任一项所述的双层滤料制成。
在本实施例中，使用上述的双层滤料制作滤袋，能够增加滤袋的过滤效果和使用寿命。
本发明提供的双层滤料及滤袋，将滤料分为了上滤层1和下滤层2两层结构，进而在增加了强度的同时，能够进行两次过滤，也增加了过滤的效果。本发明的结构简单，使用方便，生产工艺简单，成本低，易于推广和应用。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的 普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱硫本发明各实施例技术方案的范围。
此外，本领域的技术人员能够理解，尽管在此的一些实施例包括其它实施例中所包括的某些特征而不是其它特征，但是不同实施例的特征的组合意味着处于本发明的范围之内并且形成不同的实施例。例如，在上面的权利要求书中，所要求保护的实施例的任意之一都可以以任意的组合方式来使用。公开于该背景技术部分的信息仅仅旨在加深对本发明的总体背景技术的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。

Claims (10)

  1. 一种双层滤料，用于工业用烟尘过滤处理，其特征在于，包括上滤层、下滤层、涂覆层和高温覆膜层；
    所述上滤层和所述下滤层之间通过连接结点连接；
    所述高温覆膜层设置在所述上滤层远离所述下滤层的一侧，且所述高温覆膜层通过所述涂覆层与所述上滤层连接。
  2. 根据权利要求1所述的双层滤料，其特征在于，所述上滤层包括上层经线和上层纬线；
    所述上层经线和所述上层纬线交织设置；
    所述下滤层包括下层经线和下层纬线；
    所述下层经线和所述下层纬线交织设置；
    所述连接结点为所述上层经线上任意位置与所述下滤层上所对应的下层纬线交织的连接点；
    和/或，所述连接结点为所述上层纬线上任意位置与所述下滤层上所对应的下层经线交织的连接点。
  3. 根据权利要求1所述的双层滤料，其特征在于，所述连接结点设置在所述上滤层和所述下滤层之间。
  4. 根据权利要求1所述的双层滤料，其特征在于，所述下滤层、所述上滤层、所述涂覆层和所述高温覆膜层上分布不同孔径的滤孔；
    所述下滤层、所述上滤层、所述涂覆层和所述高温覆膜层上的滤孔的直径依次减小。
  5. 根据权利要求1所述的双层滤料，其特征在于，所述涂覆层为PTFE树脂。
  6. 根据权利要求1所述的双层滤料，其特征在于，所述高温覆膜层的材质为PTFE膨化微孔薄膜。
  7. 根据权利要求1所述的双层滤料，其特征在于，所述涂覆层中设置有催化剂。
  8. 根据权利要求7所述的双层滤料，其特征在于，所述催化剂为脱硝催化剂或和/或脱硫催化剂。
  9. 根据权利要求1所述的双层滤料，其特征在于，所述上滤层的材料为玻璃纤维、玄武岩纤维、聚苯硫醚纤维、芳纶纤维、聚酰亚胺纤维和/或聚四氟乙烯纤维；
    和/或，
    所述下滤层的材料为玻璃纤维、玄武岩纤维、聚苯硫醚纤维、芳纶纤维、聚酰亚胺纤维和/或聚四氟乙烯纤维。
  10. 一种滤袋，其特征在于，使用权利要求1-9任一项所述的双层滤料制成。
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711933A (zh) * 2008-10-07 2010-05-26 辽宁天泽产业集团纺织有限公司 过滤布、过滤装置及其制造方法
CN104117243A (zh) * 2013-04-27 2014-10-29 美龙环保滤材科技(营口)有限公司 双层结构复合膨体过滤布及其制造方法
CN104492160A (zh) * 2014-12-12 2015-04-08 王庆昭 超高分子量聚乙烯单丝滤布及其制备方法
CN104524886A (zh) * 2015-01-13 2015-04-22 安徽省元琛环保科技有限公司 一种双层结构的脱硝除尘一体化功能性滤袋
WO2016207873A1 (en) * 2015-06-25 2016-12-29 Woods Michael John A device for filtering particulates
CN107052559A (zh) * 2017-06-07 2017-08-18 张家港市彰阳工业过滤器有限公司 双层波纹滤布及其焊接定位装置、焊接装置和焊接方法
CN109173471A (zh) * 2018-10-26 2019-01-11 浙江鸿盛环保科技集团有限公司 双层滤料及滤袋

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2963405B2 (ja) * 1997-02-04 1999-10-18 日本テクスチャー株式会社 二重織物
JP3854808B2 (ja) * 2001-02-06 2006-12-06 日本フイルコン株式会社 工業用多層織物
CN202682930U (zh) * 2012-08-03 2013-01-23 厦门厦迪亚斯环保过滤技术有限公司 一种磷酸过滤网
CN103463871B (zh) * 2013-09-02 2015-03-11 安徽锦鸿环保科技有限公司 一种脱硝除尘玻璃纤维覆膜滤料
CN204767934U (zh) * 2015-06-30 2015-11-18 科林环保装备股份有限公司 一种多功能滤袋结构
SG11201804512QA (en) * 2015-12-17 2018-07-30 Gore & Ass Catalytic filter material
CN105854414A (zh) * 2016-03-31 2016-08-17 上海市凌桥环保设备厂有限公司 用于空气净化器中的复合滤料及其制备方法
CN107523915A (zh) * 2016-06-21 2017-12-29 辽宁天泽产业集团纺织有限公司 一种过滤布的制造方法
CN106515163A (zh) * 2016-10-27 2017-03-22 张峰 一种抗氧化耐高温聚四氟乙烯覆膜滤料及其制备方法
CN206566609U (zh) * 2017-02-27 2017-10-20 辽宁鸿盛环境技术集团有限公司 一种有机纤维机织滤料
CN206631327U (zh) * 2017-02-27 2017-11-14 辽宁鸿盛环境技术集团有限公司 一种无机纤维机织滤料
CN209221709U (zh) * 2018-10-26 2019-08-09 浙江鸿盛环保科技集团有限公司 双层滤料及滤袋

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711933A (zh) * 2008-10-07 2010-05-26 辽宁天泽产业集团纺织有限公司 过滤布、过滤装置及其制造方法
CN104117243A (zh) * 2013-04-27 2014-10-29 美龙环保滤材科技(营口)有限公司 双层结构复合膨体过滤布及其制造方法
CN104492160A (zh) * 2014-12-12 2015-04-08 王庆昭 超高分子量聚乙烯单丝滤布及其制备方法
CN104524886A (zh) * 2015-01-13 2015-04-22 安徽省元琛环保科技有限公司 一种双层结构的脱硝除尘一体化功能性滤袋
WO2016207873A1 (en) * 2015-06-25 2016-12-29 Woods Michael John A device for filtering particulates
CN107052559A (zh) * 2017-06-07 2017-08-18 张家港市彰阳工业过滤器有限公司 双层波纹滤布及其焊接定位装置、焊接装置和焊接方法
CN109173471A (zh) * 2018-10-26 2019-01-11 浙江鸿盛环保科技集团有限公司 双层滤料及滤袋

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