Glass fiber needle punched felt can be divided into glass fiber high-temperature resistant dust removal bag short cut fiber needle punched felt and continuous filament glass fiber needle punched felt. How much is the cost of a needle felt filter bag? Short cut fiber needle felt is made by cutting glass fiber roving into 50mm and randomly laying it on a substrate pre placed on the conveyor belt. Then, a needle with an inverted hook is used to needle the short cut fibers into the substrate, and the hook needle then lifts some fibers upwards to form a three-dimensional structure. The substrate used can be a thin fabric of glass fiber or other fibers, which has a fluffy feel. There are twill fiberglass felt and satin fiberglass felt, which are mainly used as insulation and sound insulation materials, heat lining materials, filter materials, and can also be used in the production of fiberglass. However, the produced fiberglass has low strength and limited scope of use. Another type of continuous strand needle felt is a felt that randomly throws continuous glass strands onto a continuous mesh belt using a wire throwing device, and forms a three-dimensional structure of fibers interconnected through needle plates. The fiberglass high-temperature resistant dust removal bag adopts a high-temperature and high-pressure cleaning method to enhance the tensile strength of the filter fabric of the fiberglass dust collector. The post-treatment methods include graphite treatment and silicone oil treatment; The appearance is soft, with a high degree of swelling in terms of water content. The wear and tear resistance of the filter material is more than 1.5 to 3 times higher than that of ordinary filter materials, and the acid resistance is good. There are two types of high temperature dust removal bags: alkali free glass fiber and medium alkali glass fiber. The temperature resistance of these bags can reach 280-295 ° C, with high dust removal efficiency and long service life. They are widely used in industries such as cement, steelmaking, and coking. Physical performance indicators: Characteristics of continuous glass fiber open width filter cloth.
