常温针刺毡过滤材料
Normal temperature filter medium
常温滤材主要由涤纶、丙纶、聚丙烯腈等纤维经针刺加固工艺制成。具有透气性好、表面平整光滑、尺寸稳定性好、容易剥离粉尘等优良性能。
BG gas needle punched filter felts for normal temperature are PET needle punched felt, PP needle punched felt and Acrylic needle punched felt. These products possess many good features, such as good air permeability, smooth surface, hardly distortion, and easily de-dusting, etc.
density : 1.38g/cm3 ;melt temperature: 255~265℃; Breaking strength: 5cN/dtex or above.Using temperature: 130℃, the temperature can reach to 170℃ for short time use.Chemical features: can not resistant strong alkali, easily hydrolyzed in high temperature conditions. Very good acid resistant.
Thin denier PET needle punched felt with heatset and singed finishing treatment, possess features like smooth surface, stable structure, good permeability, and easily de-dusting. After functional finishing treatment as water and oil repellent, membrane, anti-static, coating, the PET felt can get even better performance. And this treatment could prevent dust adhering to the bag, enhancing the precision of filtration, prevent exploring, longer the life-span, etc.
涤纶针刺过滤毡可广泛应用于钢铁、水泥(特别是干法旋窑水泥磨收尘)、化工、发电厂,冶炼,建材,制药,粮食加工,食品,铸造等行业。
PET needle punched felt can be applied in steel, cement, chemistry, power station, pharmacy and so on.
density : 0.91 g/cm3;melt temperature: 165~170℃; very good abrasion assistant and elasticity.
Using temperature: 90℃.
Chemical features: very good chemical resistant, perfect performance in resisting strong acid and alkali. Can not be hydrolyzed.
丙纶纤维针刺过滤毡,除具有普通针刺过滤毡的优点外,因其优异的耐酸、碱性及水解稳定性,可应用于烟气温度100℃以下及酸、碱度较高的场合或酸、碱度较大的液固分离领域。与板框轧滤机、真空吸滤机、袋式过滤机、离心过滤机等液式过滤分离设备配套性使用
Because of it’s perfect chemical resistant features, PP needle punched felt can be widely applied in gas and liquid filtration in the condition of strong acid and alkali under the temperature 100℃.
There are two kinds of polyacrylonitrile fibre we usually call it Acrylic—copolymer and homopolymer. This fiber can be produced by few countries( Germany and Japan). Homopolymer has better hydrolyze resistant characteristics than copolymer.
After different finishing treatment, Acrylic needle punched felt can possess water and oil proof, anti-acid and alkali, anti- oxidant performance. Under the right temperature PPS fiber can be replaced by Acrylic fiber in order to cut the cost.