KR100361431B1 - Gas filter manufactured with fine yarn - Google Patents

Gas filter manufactured with fine yarn Download PDF

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Publication number
KR100361431B1
KR100361431B1 KR1020000040718A KR20000040718A KR100361431B1 KR 100361431 B1 KR100361431 B1 KR 100361431B1 KR 1020000040718 A KR1020000040718 A KR 1020000040718A KR 20000040718 A KR20000040718 A KR 20000040718A KR 100361431 B1 KR100361431 B1 KR 100361431B1
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South Korea
Prior art keywords
dust
bubble
denier
short fibers
nonwoven fabric
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KR1020000040718A
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Korean (ko)
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KR20020007042A (en
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김선헌
홍성주
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주식회사 프리챌홀딩스
(주)대호인더스트리
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Priority to KR1020000040718A priority Critical patent/KR100361431B1/en
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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
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0613—Woven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0618—Non-woven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0659—The layers being joined by needling

Abstract

본 발명은 기체필터에 관한 것으로서, 보다 상세하게는 화학, 제철, 시멘트 산업 등 분진이 발생되는 모든 산업현장의 집진기내에 장착되는 백필터(bag filter)에 관한 것으로서, 본 발명의 목적은 미세분진을 포집할 수 있고, 탈진이 용이하며, 분진포집시의 차압이 작고, 강도가 큰 백필터를 제공하는 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas filter, and more particularly, to a bag filter mounted in a dust collector of all industrial sites where dust is generated, such as chemical, steel, and cement industries. It is possible to provide a bag filter that can be collected, easy to be dedusted, has a low differential pressure during dust collection, and has a high strength.

본 발명에 의한 세사를 이용한 기체필터는 250 ~ 1300 데니어 폴리에스터사로 제직된 기포; 상기 기포의 일면에 니들펀칭에 의하여 결합되며 0.7 ~ 6 데니어 내에서 2 종이상의 폴리에스터 단섬유를 혼용하여서 제조된 제1부직포; 및 상기 기포의 타면에 니들펀칭에 의하여 결합되며 0.5 ~ 1 데니어 폴리에스터 단섬유 또는 0.5 ~ 1 데니어 나이론 단섬유로 된 제2부직포의 3층 구조로 이루어지는 것을 특징으로 한다.Gas filter using a fine yarn according to the present invention is a bubble woven into 250 ~ 1300 denier polyester yarn; A first nonwoven fabric bonded to one surface of the bubble by needle punching and manufactured by mixing two polyester short fibers in 0.7 to 6 deniers; And it is coupled to the other surface of the bubble by needle punching, characterized in that consisting of a three-layer structure of the second nonwoven fabric of 0.5 ~ 1 denier polyester short fibers or 0.5 ~ 1 denier nylon short fibers.

본 발명에 의한 세사를 이용한 기체필터는 미세분진을 포집할 수 있고, 탈진이 용이하며, 분진포집시의 차압이 작고, 강도가 크다.The gas filter using fine yarns according to the present invention can collect fine dusts, facilitate dust removal, and have a small differential pressure at the time of dust collection and a high strength.

Description

세사를 이용한 기체필터{Gas filter manufactured with fine yarn}Gas filter manufactured with fine yarn

본 발명은 기체필터에 관한 것으로서, 보다 상세하게는 화학, 제철, 시멘트 산업 등 분진이 발생되는 모든 산업현장의 집진기내에 장착되는 백필터(bag filter)에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas filter, and more particularly, to a bag filter installed in dust collectors of all industrial sites where dust is generated, such as chemical, steel, and cement industries.

이러한 백필터는 좁고 길쭉한 자루(bag)형상을 하고 있으며 집진기내의 백케이지 (bag cage)에 끼워져서 사용된다. 백필터 표면에 분진이 어느 정도 퇴적되어 압력손실(차압)이 커지면 그것을 압축공기로 불어서 털어낸 후(탈진시킨 후) 다시 분진을 포집하게 된다.This bag filter has a narrow, elongated bag shape and is used by being fitted in a bag cage in a dust collector. If dust is deposited to some extent on the surface of the bag filter and the pressure loss (differential pressure) is increased, the dust is blown off by compressed air (dedusted) and then collected again.

분진이 발생되는 산업현장의 분진의 허용기준치는 점점 엄격해지고 있다. 예를 들어 제련공장의 경우 1999년 이전에는 그 허용기준치가 20mg/m3이었으나 그 이후에는 10mg/m3으로 강화되었다. 따라서 이러한 허용기준치를 만족시키려면 좀 더 미세한 분진까지도 걸러낼 수 있는 백필터가 필요하게 되었다.The threshold for dust at industrial sites where dust is generated is becoming increasingly stringent. In the case of smelters, for example, the limit was 20 mg / m 3 before 1999, but has since been strengthened to 10 mg / m 3 . Therefore, to meet these limits, a bag filter capable of filtering even finer dust is needed.

그러나 종래의 백필터로는 이러한 허용기준치를 만족시키기 어려웠다. 외기(外氣)와 직접 접촉되는 백필터 표면의 재질은 주로 부직포인데 이러한 부직포로서 기공이 큰 부직포를 사용했기 때문이다. 이렇게 백필터 표면의 기공이 클 경우 미세분진을 포집할 수 없을 뿐만 아니라 필터 표면에 분진이 깊숙이 박히게 되므로(분진의 1차 부착층이 두껍게 형성되므로) 탈진이 어렵게 되고 차압도 커지게 된다.However, it is difficult to meet these acceptance criteria with conventional bag filters. The material of the surface of the bag filter which is in direct contact with the outside air is mainly a nonwoven fabric because the nonwoven fabric having a large pore is used as the nonwoven fabric. In this case, when the pores on the surface of the bag filter are large, fine dust cannot be collected, and dust is deeply embedded in the filter surface (because the first adhesion layer of dust is formed thick), which makes it difficult to exhaust dust and increases the differential pressure.

백필터에 있어서 분진의 포집시에는 공기가 일방향으로 이동하게 되고 탈진시에는 압축공기가 그 반대방향으로 이동하게 된다. 이 때 백필터 자체가 공기의 이동방향에 따라 안쪽 또는 바깥쪽으로 팽창하게 되므로 백필터에는 일정 정도 이상의 강도가 요구된다. 그러나 종래의 백필터는 이러한 강도가 부족한 단점이 있었다.In the bag filter, air moves in one direction when dust is collected, and compressed air moves in the opposite direction when dust is collected. At this time, since the bag filter itself expands inward or outward according to the moving direction of the air, the bag filter requires a certain degree or more of strength. However, the conventional bag filter has a disadvantage of lacking such strength.

본 발명의 목적은 미세분진을 포집할 수 있고, 탈진이 용이하며, 분진포집시의 차압이 작고, 강도가 큰 백필터를 제공하는 것이다.An object of the present invention is to provide a bag filter capable of collecting fine dust, easy dust removal, small differential pressure during dust collection, and high strength.

상기 목적을 달성하기 위하여 본 발명에 의한 세사를 이용한 기체필터는 250 ~ 1300 데니어 폴리에스터사로 제직된 기포; 상기 기포의 일면에 니들펀칭에 의하여 결합되며 0.7 ~ 6 데니어 내에서 2 종이상의 폴리에스터 단섬유를 혼용하여서 제조된 제1부직포; 및 상기 기포의 타면에 니들펀칭에 의하여 결합되며 0.5 ~ 1 데니어 폴리에스터 단섬유 또는 0.5 ~ 1 데니어 나이론 단섬유로 된 제2부직포의 3층 구조로 이루어지는 것을 특징으로 한다.Gas filter using a fine yarn according to the present invention in order to achieve the above object is a bubble woven from 250 ~ 1300 denier polyester yarn; A first nonwoven fabric bonded to one surface of the bubble by needle punching and manufactured by mixing two polyester short fibers in 0.7 to 6 deniers; And it is coupled to the other surface of the bubble by needle punching, characterized in that consisting of a three-layer structure of the second nonwoven fabric of 0.5 ~ 1 denier polyester short fibers or 0.5 ~ 1 denier nylon short fibers.

이하에서 구체적인 실시예를 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to specific embodiments.

본 발명의 세사를 이용한 기체필터는 니들펀칭(needle punching) 방식으로 제조된다. 그 제조공정을 살펴보면 다음과 같다.The gas filter using the fine yarn of the present invention is manufactured by a needle punching method. Looking at the manufacturing process is as follows.

0.7 ~ 6데니어(denier) 폴리에스터단섬유를 통상의 부직포 제조공정에 따라카딩(carding), 크로스래핑(cross lapping)하여 웹(web)을 형성한 후 형태안정성을 위해 프리펀칭(pre-punching)한다. 이 프리펀칭된 웹을 250 ~ 1300데니어 폴리에스터사로 제직(製織)된 기포(基布)의 일면에 메인펀칭(main punching)하여 복합화한다(이하에서 이 결과물을 '기포-제1부직포 복합체'라 한다).Carding and cross lapping 0.7 to 6 denier polyester short fibers in accordance with a conventional nonwoven fabric manufacturing process to form a web and then pre-punching for morphological stability do. The prepunched web is main punched on one surface of a fabric woven from 250 to 1300 denier polyester yarns to be compounded (hereinafter, the resultant product is referred to as a 'bubble-first nonwoven composite'). do).

0.5 ~ 1데니어 폴리에스터단섬유 또는 0.5 ~ 1데니어 나일론단섬유를 역시 통상의 부직포 제조공정에 따라 카딩, 크로스래핑하여 웹을 형성한 후 형태안정성을 위해 프리펀칭한다. 상기 기포-제1부직포 복합체를 뒤집어서 기포의 타면에 이 프리펀칭된 웹을 메인펀칭하여 복합화한다(이하에서 기포-제1부직포 복합체에 메인펀칭된 부직포를 '제2부직포'라 한다).0.5-1 denier polyester short fibers or 0.5-1 denier nylon short fibers are also prepunched for form stability after carding and cross-lapping to form a web according to a conventional nonwoven fabric manufacturing process. The bubble-first nonwoven composite is turned upside down to composite the prepunched web on the other side of the bubble by main punching (hereinafter, the nonwoven fabric main punched in the bubble-first nonwoven composite is referred to as 'second nonwoven').

이 후 통상의 후가공처리(예를 들어 발수처리 등)를 하여 제품이 완성된다.Thereafter, the product is completed by ordinary post-processing treatment (for example, water repellent treatment).

상기 제1부직포의 원료인 0.7 ~ 6데니어 폴리에스터단섬유의 예로서 0.7데니어, 1.4데니어, 2데니어, 3데니어 폴리에스터단섬유를 들 수 있으나 이에 한정되는 것은 아니다. 이것들은 단독으로 또는 2이상을 혼합하여 사용될 수 있다. 2데니어, 3데니어 폴리에스터단섬유를 단독 또는 혼합하여 사용하는 것이 바람직하다.Examples of the 0.7 to 6 denier polyester short fibers as the raw material of the first nonwoven fabric include 0.7 denier, 1.4 denier, 2 denier and 3 denier polyester short fibers, but are not limited thereto. These may be used alone or in combination of two or more. It is preferable to use 2 denier and 3 denier polyester short fibers individually or in mixture.

상기 제2부직포의 원료로서 0.5 ~ 1데니어 폴리에스터단섬유 또는 0.5 ~ 1데니어 나일론단섬유가 사용된다. 0.7데니어 폴리에스터단섬유를 사용하는 것이 바람직한데 이 경우 1㎛ 크기의 분진까지 포집할 수 있다. 종래에는 2데니어, 3데니어 폴리에스터단섬유를 단독 또는 혼합한 것을 사용하였다. 이 경우 백필터 표면의 기공이 커서 미세분진을 포집하기 어려웠고, 분진이 깊숙이 박혀(분진의 1차 부착층이 두껍게 형성되어) 탈진이 어려웠으며 차압이 컸다.0.5-1 denier polyester short fiber or 0.5-1 denier nylon short fiber is used as a raw material of the second nonwoven fabric. It is preferred to use 0.7 denier polyester short fibers, in which case it is possible to collect dust up to 1 μm in size. Conventionally, what used 2 denier and 3 denier polyester short fibers individually or in mixture was used. In this case, the pores on the surface of the bag filter were large, making it difficult to collect fine dust, and the dust was deeply embedded (because the first adhesion layer of the dust was formed thick), making it difficult to exhaust and having a large differential pressure.

상기 기포로서 250 ~ 1300데니어 폴리에스터사로 제직(製織)된 것을 사용한다. 1000데니어 폴리에스터사로 제직된 것을 사용하는 것이 바람직하다. 종래에는 300데니어 폴리에스터사로 제직된 기포를 사용하여 백필터의 강도에 문제가 있었다.As the bubble, one woven from 250 to 1300 denier polyester yarn is used. It is preferable to use those woven with 1000 denier polyester yarns. Conventionally, there is a problem in the strength of the bag filter using bubbles woven from 300 denier polyester yarn.

실시예Example

전술한 제조공정에 따라 백필터를 제조하였다. 기포는 1000데니어 폴리에스터사로 기포밀도(경사 ×위사)가 17 ×16이 되게 제직한 것을 사용하였다. 제1부직포의 원료로 2데니어 및 3데니어 폴리에스터단섬유를 혼합한 것을 사용하였다. 제2부직포의 원료로 0.7데니어 폴리에스터단섬유를 사용하였다. 니들펀칭 완료후 폴리테트라플루오로에틸렌(PTFE)으로 발수처리하였다.A bag filter was manufactured according to the above-described manufacturing process. The bubble used was 1000 denier polyester yarn, which was woven so that the bubble density (tilt x weft) became 17x16. As a raw material of the first nonwoven fabric, a mixture of 2 denier and 3 denier polyester short fibers was used. 0.7 denier polyester short fibers were used as a raw material for the second nonwoven fabric. After needle punching was completed, water-repellent treatment was performed with polytetrafluoroethylene (PTFE).

제조된 백필터의 물성을 하기 표에 나타내었다.Physical properties of the manufactured bag filter are shown in the following table.

비교예Comparative example

전술한 제조공정에 따라 백필터를 제조하였다. 기포는 300데니어 폴리에스터사로 기포밀도(경사 ×위사)가 44 ×27이 되게 제직한 것을 사용하였다. 제1부직포 및 제2부직포의 원료로 2데니어 및 3데니어 폴리에스터단섬유를 혼합한 것을 사용하였다. 니들펀칭 완료후 폴리테트라플루오로에틸렌(PTFE)으로 발수처리하였다.A bag filter was manufactured according to the above-described manufacturing process. Bubbles were 300 denier polyester yarns that were woven so as to have a bubble density (tilt x weft) of 44 x 27. As a raw material of the first nonwoven fabric and the second nonwoven fabric, a mixture of 2 denier and 3 denier polyester short fibers was used. After needle punching was completed, water-repellent treatment was performed with polytetrafluoroethylene (PTFE).

제조된 백필터의 물성을 하기 표에 나타내었다.Physical properties of the manufactured bag filter are shown in the following table.

표table

구분division 단위unit 실시예Example 비교예Comparative example 비고* Note * 중량weight g/㎡g / ㎡ 600.0600.0 603.0603.0 KS K 0514KS K 0514 두께thickness mmmm 1.91.9 2.22.2 KS K 0506KS K 0506 통기도Aeration ㎤/㎠ㆍsecCm 3 / cm 2 · sec 10.010.0 17.017.0 KS K 0570KS K 0570 인장강도The tensile strength 길이Length kgfkgf 160.0160.0 84.384.3 KS K 0520CUT STRIPKS K 0520CUT STRIP 폭width 160.0160.0 156.2156.2 인장신율Tensile elongation 길이Length %% 26.026.0 26.226.2 폭width 34.034.0 37.537.5 5% 신율강도5% Elongation Strength 길이Length kgfkgf 42.142.1 19.919.9 폭width 18.918.9 6.36.3 10% 신율강도10% elongation at break 길이Length kgfkgf 65.865.8 35.035.0 폭width 47.947.9 12.312.3 열수축률Heat shrinkage 경사slope %% 0.10.1 4.04.0 150℃, 30분150 ° C, 30 minutes 위사Weft 0.10.1 1.71.7 발수도Water repellency -- 9090 9090 KS K 0590KS K 0590

* KS K 수치는 KS 시험기준을 의미함.* KS K value means KS test standard.

상기 표에서 통기도로부터 실시예의 백필터의 기공이 비교예의 그것보다 더 작게 형성되어 있다는 것을 알 수 있다. 실시예에서는 비교예보다 섬도가 큰 원사로 기포를 제조했기 때문에 인장강도가 더 크고 인장신율이 약간 작으며 신율강도가 상당히 더 큰 것을 알 수 있다.It can be seen from the table that the pores of the bag filter of the example are smaller than those of the comparative example from the air permeability. In the examples, since the bubbles were made of yarns having a larger fineness than the comparative example, it can be seen that the tensile strength is larger, the tensile elongation is slightly smaller, and the elongation strength is considerably larger.

본 발명에 의한 세사를 이용한 기체필터는 미세분진을 포집할 수 있고, 탈진이 용이하며, 분진포집시의 차압이 작고, 강도가 크다.The gas filter using fine yarns according to the present invention can collect fine dusts, facilitate dust removal, and have a small differential pressure at the time of dust collection and a high strength.

Claims (4)

250 ~ 1300 데니어 폴리에스터사로 제직된 기포; 상기 기포의 일면에 니들펀칭에 의하여 결합되며 0.7 ~ 6 데니어내에서 2종이상의 폴리에스터 단섬유를 혼용하여서 제조된 제1부직포; 및 상기 기포의 타면에 니들펀칭에 의하여 결합되며 0.5 ~ 1 데니어 폴리에스터 단섬유 또는 0.5 ~ 1 데니어 나이론 단섬유로 된 제2부직포의 3층 구조로 이루어지는 것을 특징으로 하는 세사를 이용한 기체 필터.Bubbles woven from 250 to 1300 denier polyester yarns; A first nonwoven fabric bonded to one surface of the bubble by needle punching and manufactured by mixing two or more kinds of polyester short fibers within 0.7 to 6 deniers; And a third layer structure of a second nonwoven fabric made of 0.5 to 1 denier polyester short fiber or 0.5 to 1 denier nylon short fiber coupled to the other surface of the bubble by needle punching. 삭제delete 삭제delete 삭제delete
KR1020000040718A 2000-07-14 2000-07-14 Gas filter manufactured with fine yarn KR100361431B1 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR101230249B1 (en) * 2010-11-10 2013-02-07 (주)에어릭스 Anto-static nonwoven felt with superfine fibers for dust collecting filter

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CN117122994B (en) * 2023-08-23 2024-04-09 抚顺新东方滤料工贸有限公司 Improved medium temperature resistant polyester filter bag and preparation method thereof

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JPH0220910A (en) * 1988-03-17 1990-01-24 Fujitsu Ltd Surface acoustic wave device
KR910011320A (en) * 1989-12-28 1991-08-07 공정곤 Bag filter made of polyester filament yarn
JPH0526122U (en) * 1991-09-18 1993-04-06 ダイワボウ・クリエイト株式会社 Filter cloth
KR19980068512A (en) * 1997-02-20 1998-10-26 손영목 Flame retardant filter bag and its manufacturing method
KR100196031B1 (en) * 1996-10-26 1999-06-15 박형중 Non-woven fabric for filter
KR20010027395A (en) * 1999-09-13 2001-04-06 롤프 에취, 켈러, 카즈노리 이마무라 Filter Element Air Filtering And Its Manufacturing Method

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Publication number Priority date Publication date Assignee Title
JPH0220910A (en) * 1988-03-17 1990-01-24 Fujitsu Ltd Surface acoustic wave device
KR910011320A (en) * 1989-12-28 1991-08-07 공정곤 Bag filter made of polyester filament yarn
JPH0526122U (en) * 1991-09-18 1993-04-06 ダイワボウ・クリエイト株式会社 Filter cloth
KR100196031B1 (en) * 1996-10-26 1999-06-15 박형중 Non-woven fabric for filter
KR19980068512A (en) * 1997-02-20 1998-10-26 손영목 Flame retardant filter bag and its manufacturing method
KR20010027395A (en) * 1999-09-13 2001-04-06 롤프 에취, 켈러, 카즈노리 이마무라 Filter Element Air Filtering And Its Manufacturing Method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101230249B1 (en) * 2010-11-10 2013-02-07 (주)에어릭스 Anto-static nonwoven felt with superfine fibers for dust collecting filter

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