KR100490864B1 - Process for preparing a high temperature dust collection filter by a resin impregnation coating - Google Patents
Process for preparing a high temperature dust collection filter by a resin impregnation coating Download PDFInfo
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- KR100490864B1 KR100490864B1 KR10-2003-0007494A KR20030007494A KR100490864B1 KR 100490864 B1 KR100490864 B1 KR 100490864B1 KR 20030007494 A KR20030007494 A KR 20030007494A KR 100490864 B1 KR100490864 B1 KR 100490864B1
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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
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/267—Glass
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
- D06C15/02—Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C9/00—Singeing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
- D06M15/277—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof containing fluorine
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- 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
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- 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
- B01D2239/10—Filtering material manufacturing
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/04—Filters
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
Abstract
본 발명은 유리섬유 직포원단 내부에 불화탄소로 이루어진 테프론(PTFE)과 불소수지(fluoro resin)등 액상수지 용액을 혼합하여 고온집진필터에 적합하도록 물리적인 방법과 화학적인 방법으로 형태 안정화시켜 고온에서 발생하는 마이크론(micron)이하의 미세분진에 대한 집진효율을 향상시키고 배출가스 처리속도를 좀더 빠르게 진행하여 소비자의 조건을 충족시킬 수 있도록 하였고 또한 장시간 사용시 고유의 특성이 상실되는 점을 개선하여 산업현장의 필요한 용도에 따라 광범위하게 사용할 수 있도록 생산체계를 확립하여 소비자에게 제공하고자 수지함침코팅에 의한 고온 집진필터의 제조방법에 관한 것이다.The present invention is mixed with a liquid resin solution, such as fluorocarbon (PTFE) and fluoro resin made of fluorocarbon inside the glass fiber woven fabric to stabilize the form by physical and chemical methods to be suitable for high temperature dust filter at high temperature Improved dust collection efficiency for micron or less micro dust generated and faster discharge process to meet consumer's condition, and also improved the loss of inherent characteristics when used for a long time. The present invention relates to a method for manufacturing a high temperature dust collecting filter by resin impregnating coating to provide a consumer with a production system that can be used for a wide range of uses according to the necessary uses.
Description
본 발명은 수지함침코팅에 의한 코트라(KOTLA) 고온집진필터의 제조방법에 관한 것이다. 더욱 구체적으로, 본 발명은 유리섬유 직포원단 내부에 불화탄소로 이루어진 테프론(teflon: PTFE)과 불소수지(fluoro resin)등 액상수지 용액을 혼합하여 고온집진필터에 적합하도록 물리적인 방법과 화학적인 방법으로 형태 안정화시켜 고온에서 발생하는 마이크론(micron)이하의 미세분진에 대한 집진효율을 향상시키고 배출가스 처리속도을 좀더 빠르게 진행하여 소비자의 조건을 충족시킬 수 있도록 하였고 또한 장시간 사용시 고유의 특성이 상실되는 점을 개선하여 산업현장의 필요한 용도에 따라 광범위하게 사용할 수 있도록 생산체계를 확립하여 소비자에게 제공할 수 있는 수지함침코팅에 의한 고온 집진필터의 제조방법에 관한 것이다.The present invention relates to a method for producing a KOTLA high temperature dust collecting filter by resin impregnation coating. More specifically, the present invention is a physical method and a chemical method to mix a liquid resin solution such as teflon (Teflon (PTFE)) made of fluorocarbon inside a glass fiber woven fabric and a fluoro resin (fluoro resin) Its shape stabilization results in improved dust collection efficiency for micron or less dust generated at high temperatures, and faster exhaust gas treatment to meet consumer's requirements. The present invention relates to a method for manufacturing a high temperature dust collecting filter by resin impregnating coating that can be provided to a consumer by establishing a production system to be widely used according to a necessary use of an industrial site.
일반적으로, 유리섬유 직포를 기계적 방법이나 화학적인 방법으로 가공하여 집진필터를 제조하는 방법들이 알려져 있지만, 종래의 통상적인 방법에 따르면, 유리섬유의 충격강도 문제로 분리효과가 뛰어난 집진기 펄스젯 에이크리닝(pulse jet air cleaning)에는 사용할 수 없었으며 분진효과는 낮지만 충격이 작은 리버스 에어 크리닝(reverse air cleaning)에만 적용가능하였다. 또한 화학적 측면에서도 내화학성를 어느정도 갖고 있지만 산, 알카리성이 아주 약한 것으로 나타났다. Generally, a method of manufacturing a dust collecting filter by processing a glass fiber woven fabric by a mechanical method or a chemical method is known. However, according to the conventional method, the dust collector pulse jet cleaning has excellent separation effect due to the impact strength of the glass fiber. It was not available for pulse jet air cleaning and was only applicable to reverse air cleaning with low impact but low impact. In addition, it has some chemical resistance in chemical aspect, but has very weak acid and alkali resistance.
이에 본 발명자는 종래 방법들의 문제점을 개선하기 위해 수많은 연구와 시험을 거듭한 결과, 유리섬유 직포원단 내부에 불화탄소로 이루어진 테프론(PTFE; 폴리테트라플루오르에틸렌)과 불소수지(fluoro resin)등 각종 액상수지 용액을 혼합하여 고온집진필터에 적합하도록 물리적인 방법과 화학적인 방법으로 형태 안정화시켜 고온에서 발생하는 마이크론(micron)이하의 미세분진에 대한 집진효율을 향상시키고 배출가스 처리속도를 좀더 빠르게 진행하여 소비자의 조건을 충족시킬 수 있고 또한 장시간 사용시 고유의 특성이 상실되는 점을 개선하여 산업현장의 필요한 용도에 따라 광범위하게 사용할 수 있도록 생산체계를 확립하여 소비자에게 제공할 수 있음을 밝혀내고 본 발명을 완성하기에 이르렀다. Accordingly, the present inventors have conducted numerous studies and tests to improve the problems of the conventional methods, and various liquids such as Teflon (PTFE; polytetrafluoroethylene) and fluoro resin made of fluorocarbon inside the glass fiber fabric By mixing the resin solution and stabilizing the shape by physical method and chemical method to be suitable for the high temperature dust collection filter, it improves the dust collection efficiency of micron or less dust generated at high temperature and accelerates the exhaust gas processing speed. The present invention was found to be able to satisfy the condition of the consumer and to improve the loss of inherent characteristics when used for a long time so that the production system can be established and provided to the consumer to be widely used according to the required use of the industrial site. It was completed.
본 발명에 의하면 집진필터용 유리섬유 직포 원단을 모소가공하여 테프론 15중량%, 액상불소수지 20중량% 및 물 65중량%로 이루어진 수지함침액에 침지한 후 스퀴징 롤러에서 탈수시키고, 함침탈수된 원단을 일정한 간격으로 상하로 배열된 가열 실린더식 롤러들을 구비하는 건조장치에서 초기온도 100℃~120℃, 마무리 온도 150℃에서 건조 및 큐어링하는 것을 포함하는 수지함침코팅에 의한 고온집진필터의 제조방법이 제공된다.이하, 본 발명을 보다 상세하게 설명하기로 한다. 이하의 설명에서 %는 중량%를 의미한다.According to the present invention, the glass fiber woven fabric for the dust collecting filter is immersed in a resin impregnation solution consisting of 15% by weight of Teflon, 20% by weight of liquid fluorine resin, and 65% by weight of water, followed by dehydration from a squeegeeing roller. Fabrication of high temperature dust collecting filter by resin impregnating coating comprising drying and curing the fabric at an initial temperature of 100 ° C. to 120 ° C. and a finishing temperature of 150 ° C. in a drying apparatus having heated cylindrical rollers arranged up and down at regular intervals. A method is provided. Hereinafter, the present invention will be described in more detail. In the following description,% means% by weight.
본 발명에 따라 수지함침코팅에 의한 고온 집진필터의 제조방법을 공정흐름도에 따라 설명하면 다음과 같다.According to the present invention, a method for manufacturing a high temperature dust collecting filter by resin impregnation coating will be described according to the process flow chart.
[공정흐름도][Process Flow Chart]
[유리섬유 직포원단] → [모소가공] → [함침] → [탈수] → [건조+1차큐링] → [Fiberglass Fabric] → [Moso Processing] → [Impregation] → [Dewatering] → [Drying + 1st Curing] →
[2차 큐어링] → [코트라 고온 집진필터][Second Curing] → [Cotra High Temperature Dust Collector]
- 모소가공(singeing treatment): 기모를 태우는 가공으로 1차 가공과 2차 가공으로 분리되며, 1차가공은 표면처리이고 2차가공은 이면처리이다. -Singeing treatment: This is a brush-burning process that is divided into primary and secondary processes. The primary process is surface treatment and the secondary process is back treatment.
- 함침공정(dipping): 1차 침지로 물＋테프론＋액상불소수지 혼합액 (65%+15%+20%)으로 함침한다. -Dipping: Impregnate with water + Teflon + liquid fluorine resin mixture (65% + 15% + 20%) by primary dipping.
- 탈수공정(squeezing): 맹글롤러(mangle roller)에서 일정한 압력으로 재 침투시킨다. -Squeezing: Repenetrate at a constant pressure in a mangle roller.
- 건조(dryer)+1차큐어링(curing): 실린더식 캔(cylinder shape can)형태의 건조장치 Dryer + Primary Curing: Drying device in the form of a cylinder shape can
- 2차 큐어링: 표면처리 및 고형분 완전점착 (felt calendering) -Secondary curing: surface treatment and solid calendering
- 코트라(KOTLA)집진필터: Konic Tech Teflon+Glass 의 합성어 -KOTLA dust collection filter: compound word of Konic Tech Teflon + Glass
유리섬유 직포원단 내부에 수지 함침코팅에 대한 제조방법으로 원단의 광학적 구조를 보면 2차원적 그물 망상구조를 형성하고 있는 유리섬유에 테프론과 합성수지 혼합용액이 화이버(fiber)내부에 개개별로 코팅되어 형태안정을 유지하여 내열성, 내화성, 내충격성, 내마모성 등 미세분진에 대한 집진효율을 극대화 시킬 수 있었고 또한 사용목적에 따라 광범위하게 분포되어 고온에 적용할 수 있는 집진필터로 다양한 산업용에 적용이 가능하게 되었다. As a manufacturing method for the resin impregnating coating inside the glass fiber fabric, the optical structure of the fabric shows that the mixture of Teflon and resin is coated on the fiber individually to the glass fiber forming the two-dimensional network. By maintaining the shape stability, it was able to maximize the dust collection efficiency of fine dust such as heat resistance, fire resistance, impact resistance, and abrasion resistance, and it is widely distributed according to the purpose of use, and it can be applied to various industries as a dust filter that can be applied at high temperature. It became.
또한 종래에는 유리섬유의 최대 단점인 충격강도 문제로 분리효과가 뛰어난 집진기 펄스젯 에어크리닝 (pulse jet air cleaning)에는 사용할 수 없었으며 분진효과가 낮지만 충격이 작은 리버스 에어 크리닝(reverse air cleaning)에만 적용 하였으나, 본 발명에서는 내부함침 코팅법을 이용함으로서 테프론과 불소수지가 유리섬유 직포원단 내부의 경사와 위사 사이에 안정적으로 점착되어 섬유와 섬유(얀과 얀 =yarn과yarn>사이에서 외부의 충격을 흡수할 수 있는 완충역활을 할 뿐만 아니라 형태 안정성을 유지시켜 내충격강도 및 내마모성, 내열성 등을 혁신적으로 향상시켜 줌으로서 분리효과가 높은 집진필터에 적용이 가능하게 되었고 아울러 유리섬유 원단내부에 코팅된 테프론과 불소수지 혼합액은 분진상 마찰계수가 낮기 때문에 섬유의 기계적 손상을 막아주고 동시에 미세유리 섬유는 필터의 표면적을 확장시켜 주어 서로 다른 화학적 특성을 지닌 마찰전기의 발생으로 마이크론 이하의 분진도 포착할 수 있는 능력을 발휘하게 되었으며 고온에서 발생하는 수분성 및 유분성 등의 점착성 분진에 대해서도 분리현상이 뛰어나서 운전중에 발생하는 차압상승현상(pressure drop)이 현격히 줄어들어 집진필터의 수명을 상대적으로 늘릴 수 있었고 화학적인 측면에서는 어느 정도 내화학성을 갖지만 내알카리성에 아주 약한 단점을 개선할 수 있었다.In addition, due to the impact strength problem, which is the biggest disadvantage of glass fiber, it was not possible to use it for pulse jet air cleaning with excellent separation effect, and only reverse air cleaning with low dust effect but small impact However, in the present invention, by using the internal impregnation coating method, Teflon and the fluorocarbon resin are stably adhered between the warp and the weft inside the glass fiber woven fabric, so that the impact between the fiber and the fiber (yarn and yarn = yarn and yarn) It not only plays a buffering role to absorb water, but also maintains morphological stability to improve impact strength, abrasion resistance, and heat resistance. Teflon and fluororesin have a low dust-based friction coefficient to prevent mechanical damage to the fibers. At the same time, the fine glass fiber expands the surface area of the filter, which is capable of capturing sub-micron dust by the generation of triboelectric electrochemicals with different chemical properties, and adhesion to moisture and oil at high temperatures. The separation effect is excellent even for dust, which significantly reduces the pressure drop during operation, which can extend the life of the dust collecting filter relatively.It has some chemical resistance in chemical aspect, but it can improve the weakness in alkali resistance. Could.
본 발명의 제조공정을 살펴보면, 테프론15%와 액상불소수지 20%를 혼합시키고 이 용액을 다시 물과 적정비율로 혼합 (테프론+불소수지 35% : 물65%)하여 골고루 섞일 수 있도록 교반을 시켜주면서 상온을 유지하여 용해조에 공급한다. 공급된 용액을 적정수준 유지하고 유리섬유 직물원단을 디핑처리(dipping treatment)하여 일정량의 고형분을 함유할 수 있도록 충분히 침지시킨 후 스퀴징 롤러(squeeing roller: 탈수처리)를 통과하는 동시에 균일하게 한번 더 침투하게 되는데, 이때 압력은 8.0 kg/cm2을 항상 유지한다. 스퀴징 롤러를 통과한 원단은 수분을 함유하게 되는데 이때 수분을 제거하기 위하여 건조장치에 인입 시킨다.Looking at the manufacturing process of the present invention, Teflon 15% and liquid fluorine resin 20% is mixed and the solution is mixed with water again in an appropriate ratio (Teflon + fluorine resin 35%: water 65%) by stirring to evenly mixed While maintaining the room temperature while supplying to the dissolution tank. The supplied solution is kept at an appropriate level, and the fiberglass fabric is dipping to sufficiently immerse it to contain a certain amount of solids and then pass through a squeeze roller. Penetrates at this time, with a pressure of 8.0 kg / cm 2 at all times. The fabric passed through the squeegee roller will contain moisture, which is then introduced into the drying device to remove the moisture.
건조장치방법은 실린더 식으로 일정한 간격으로 배열된 상하 열쌍의 가열된 롤러 사이를 통과하면서 수분이 증발하게 되는데 이때 온도는 초기에는 100℃∼120℃을 유지하고 중간부분은 150℃를 형성시켜 1차 건조시키고 아울러 큐어링(curing)이 동시에 일어나면서 제품표면에 평활성을 향상시킬 수 있었다. 또한 마지막 공정인 펠트 칼렌다(felt calender)에 200℃로 통과시켜 고형분을 안정적으로 완전 열 정착(heat setting)시키고 고온에서 변형을 미연에 방지하면서 균제도를 보완하는 혁신적인 제품이 될 수 있었다. In the drying apparatus method, moisture is evaporated while passing between the heated rollers of the upper and lower ten pairs arranged at regular intervals in a cylindrical manner. At this time, the temperature is initially maintained at 100 ° C. to 120 ° C., and the middle part forms 150 ° C. Drying and curing occurred simultaneously to improve the smoothness of the product surface. In addition, it passed through the felt calender, the final process, at 200 ° C., which could be a revolutionary product that complements the uniformity while stably maintaining the solid heat setting and preventing deformation at high temperatures.
상기와 같이 본 발명에 따라 수지함침코팅 공정으로 제조된 코트라(KOTLA)고온집진 필터를 공정1 (Glass 원단상태)과 공정2 (함침코팅후)를 분류하여 중량별로 비교한 데이터는 다음 표 1과 같다.As described above, the Kotra high temperature dust collecting filter manufactured by the resin impregnating coating process according to the present invention is classified by process 1 (Glass fabric state) and process 2 (after impregnation coating) by weight. same.
표-1. Table-1.
상기 표 1에서 본발명의 코트라 집진필터는 물성변화에서는 밀도가 높고 신율이 낮게 분포되어 고온의 압력에서도 변형이 오지 않도록 미세한 다공층으로 함침코팅 되어 수명을 연장시킬 수 있었고 아울러 집진필터의 기능을 한 차원 높일 수 있었다. In Table 1, the KOTRA dust collection filter of the present invention has a high density and low elongation in physical property change, so that the coating can be extended by impregnating with a fine porous layer so as not to be deformed even under high temperature pressure, and also extend the life. Could raise the dimension.
또한 고온에 사용되는 본 발명의 집진필터와 통상적인 시판 집진필터인 테페어(Tefaire; 테프론 + 글래스)와 테프론(Teflon; 100%PTFE 불화탄소로 만든 필터백)을 비교한 시험데이터는 다음 표-2에 나타내었다. 테페어 펠트는 In addition, the test data comparing the dust collecting filter of the present invention used at high temperature with a conventional commercial filter, Tefaire (Teflon + glass) and Teflon (filter bag made of 100% PTFE fluorocarbon) is shown in the following table. 2 is shown. Tepe felt
표2.Table 2.
상기 표2에 나타난 바와같이 본 발명의 코트라 집진필터는 통상의 시판제품(테페어 및 테프론)에 비해 밀도가 높고 강도에서는 경, 위사 방향 모두 2배 정도 차이가 발생되며 특히 신율이 적으므로 외형적으로 발생되는 수축율 및 낮은 차압으로 탁월한 효과를 얻을 수 있었다. 특히 화학적으로 산, 알카리성에 우수한 효력을 발휘하여 고온 집진필터로서의 사용범위를 늘릴 수 있었다. As shown in Table 2, the KOTRA dust collection filter of the present invention has a higher density than the conventional commercial products (Tape and Teflon), and has a difference of about twice as much in the light and weft directions in strength, and in particular, the elongation is small. Excellent effect was obtained with the shrinkage rate and the low differential pressure generated. In particular, it was possible to extend the range of use as a high temperature dust collecting filter by showing excellent effect on acid and alkali chemically.
상기 시험 테이터를 얻기 위한 시험항목별 관련기준 및 공인시험방법은 아래 Relevant standards and official test methods for each test item to obtain the test data are as follows.
표-3에 나타내었다.Table 3 shows.
표 3.Table 3.
본 발명에 따른 고온집진필터는 미세 다공층으로 함침코팅 되어 표면이 균일하고 미세분진에 대한 집진효율이 우수하여 고온의 압력에서도 기공이 팽창되지 않아 분진이 넓혀진 공극으로 침투하지 못하므로 차압이 적게 걸리고 특히 마이크론 이하의 분진을 포착할수 있는 능력을 발휘하여 고온유해 환경에 적합하도록 우수한 화학적 기능과 기계적인 물성을 유지하여 투자비용 절감, 유지비용 절감. 수명연장 등을 지닌 고온 집진필터로서 유효하게 사용할 수 있다. The high temperature dust collecting filter according to the present invention is impregnated and coated with a microporous layer, so that the surface is uniform and the dust collecting efficiency for fine dust is excellent, so that the pores are not expanded even at a high temperature pressure, so that the dust does not penetrate into the widened pores, so the differential pressure is less. In particular, it exhibits the ability to capture sub-micron dust and maintains excellent chemical function and mechanical properties to suit high temperature and harmful environment, reducing investment cost and maintenance cost. It can be effectively used as a high temperature dust collecting filter having an extended life.
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