CN105935515A - 一种用于净化塔的纳米复合过滤膜 - Google Patents

一种用于净化塔的纳米复合过滤膜 Download PDF

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CN105935515A
CN105935515A CN201610457935.1A CN201610457935A CN105935515A CN 105935515 A CN105935515 A CN 105935515A CN 201610457935 A CN201610457935 A CN 201610457935A CN 105935515 A CN105935515 A CN 105935515A
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cnt
membrane layer
tio
composite film
filter membrane
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范赛红
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WUXI GUOSONG ENVIRONMENTAL PROTECTION MACHINERY CO Ltd
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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
    • 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
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
    • 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
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/546—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using nano- or microfibres
    • 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
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0223—Vinyl resin fibres
    • B32B2262/0238—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Nanotechnology (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filtering Materials (AREA)

Abstract

本发明公开了一种用于净化塔的纳米复合过滤膜，包括：支撑基础膜层、第一CNT/TiO2复合膜层、PVDF电纺纤维膜层、第二CNT/TiO2复合膜层和CTAB/NaSal/PVA纳米纤维膜层，所述的支撑基础膜层的内表面由内往外依次设置有所述的第一CNT/TiO2复合膜层、所述的PVDF电纺纤维膜层、所述的第二CNT/TiO2复合膜层和所述的CTAB/NaSal/PVA纳米纤维膜层。通过上述方式，本发明对超细粉尘颗粒的过滤效率高，除尘过滤的十分充分，能够改善脱硝脱硫的效果。

Description

一种用于净化塔的纳米复合过滤膜
技术领域
本发明涉及净化塔领域，特别是涉及一种用于净化塔的纳米复合过滤膜。
背景技术
随着我国经济的发展，在能源消费中带来的环境污染也越来越严重。其中大气烟尘、酸雨、温室效应和臭氧层的破坏已成为危害人民生存的四大杀手。燃煤烟气所含的烟尘、二氧化硫、氮氧化物等有害物质是造成大气污染、酸雨和温室效应的主要根源。我国南方及西南部地区相当一大片地域频繁发生酸雨和酸雾的灾害。我国燃煤取得的能量达到能源总量的75%以上，而且这种能源结构在近年不会改变。与此同时燃煤烟气中排放的二氧化硫和氮氧化物占全国总排放量的90%。因此在我国对燃煤烟气进行脱硫脱硝是刻不容缓的任务。
烟气在脱硫脱硝的同时也要进行除尘处理，然而，目前的烟气的除尘处理对超细粉尘颗粒的过滤效率低，以至于影响到了脱硝脱硫效果。
发明内容
本发明主要解决的技术问题是提供一种用于净化塔的纳米复合过滤膜，对超细粉尘颗粒的过滤效率高，除尘过滤的十分充分，能够改善脱硝脱硫的效果。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种用于净化塔的纳米复合过滤膜，包括：支撑基础膜层、第一CNT/TiO2复合膜层、PVDF电纺纤维膜层、第二CNT/TiO2复合膜层和CTAB/NaSal/PVA纳米纤维膜层，所述的支撑基础膜层的内表面由内往外依次设置有所述的第一CNT/TiO2复合膜层、所述的PVDF电纺纤维膜层、所述的第二CNT/TiO2复合膜层和所述的CTAB/NaSal/PVA纳米纤维膜层。
在本发明一个较佳实施例中，所述的第一CNT/TiO2复合膜层的厚度与所述的第二CNT/TiO2复合膜层的厚度相同。
在本发明一个较佳实施例中，所述的第一CNT/TiO2复合膜层的厚度大于所述的第二CNT/TiO2复合膜层的厚度。
在本发明一个较佳实施例中，所述的支撑基础膜层的厚度大于第一CNT/TiO2复合膜层的厚度。
本发明的有益效果是：本发明对超细粉尘颗粒的过滤效率高，除尘过滤的十分充分，能够改善脱硝脱硫的效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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它的附图，其中：
图1是本发明用于净化塔的纳米复合过滤膜一较佳实施例的结构示意图；
附图中各部件的标记如下：1、支撑基础膜层，2、第一CNT/TiO2复合膜层，3、PVDF电纺纤维膜层，4、第二CNT/TiO2复合膜层，5、CTAB/NaSal/PVA纳米纤维膜层。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，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它实施例，都属于本发明保护的范围。
请参阅图1，本发明实施例包括：
一种用于净化塔的纳米复合过滤膜，包括：支撑基础膜层1、第一CNT/TiO2复合膜层2、PVDF电纺纤维膜层3、第二CNT/TiO2复合膜层4和CTAB/NaSal/PVA纳米纤维膜层5，所述的支撑基础膜层1的内表面由内往外依次设置有所述的第一CNT/TiO2复合膜层2、所述的PVDF电纺纤维膜层3、所述的第二CNT/TiO2复合膜层4和所述的CTAB/NaSal/PVA纳米纤维膜层5。
本发明中，所述的第一CNT/TiO2复合膜层2的厚度与所述的第二CNT/TiO2复合膜层4的厚度相同。
本发明中，所述的第一CNT/TiO2复合膜层2的厚度大于所述的第二CNT/TiO2复合膜层4的厚度。
本发明中，所述的支撑基础膜层1的厚度大于第一CNT/TiO2复合膜层2的厚度。
本发明用于净化塔的纳米复合过滤膜的有益效果是：本发明对超细粉尘颗粒的过滤效率高，除尘过滤的十分充分，能够改善脱硝脱硫的效果。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (4)

1.一种用于净化塔的纳米复合过滤膜，其特征在于，包括：支撑基础膜层、第一CNT/TiO2复合膜层、PVDF电纺纤维膜层、第二CNT/TiO2复合膜层和CTAB/NaSal/PVA纳米纤维膜层，所述的支撑基础膜层的内表面由内往外依次设置有所述的第一CNT/TiO2复合膜层、所述的PVDF电纺纤维膜层、所述的第二CNT/TiO2复合膜层和所述的CTAB/NaSal/PVA纳米纤维膜层。
2.根据权利要求1所述的用于净化塔的纳米复合过滤膜，其特征在于，所述的第一CNT/TiO2复合膜层的厚度与所述的第二CNT/TiO2复合膜层的厚度相同。
3.根据权利要求1所述的用于净化塔的纳米复合过滤膜，其特征在于，所述的第一CNT/TiO2复合膜层的厚度大于所述的第二CNT/TiO2复合膜层的厚度。
4.根据权利要求1所述的用于净化塔的纳米复合过滤膜，其特征在于，所述的支撑基础膜层的厚度大于第一CNT/TiO2复合膜层的厚度。
CN201610457935.1A 2016-06-23 2016-06-23 一种用于净化塔的纳米复合过滤膜 Pending CN105935515A (zh)

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CN113117434A (zh) * 2019-12-30 2021-07-16 西安工程大学 柔性网状脉结构陶瓷纳米纤维超高温过滤膜的制备方法

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Application publication date: 20160914