广州旺涛过滤器材科技有限公司
TECHNICAL TOPICS
 
Dust collection bag, which is the heart of a pulse bag dust collector, is called a dust collection filter bag, a filter bag and so on at home and abroad, and is a key part in the running process of the bag dust collector, and a barrel-shaped filter bag is vertically hung in the dust collector generally. The dust collector or dust collection equipment is used for separating dust from flue gas. The bag dust collector is also called a filter dust collector, is a dry high-efficiency dust collector, and is a dust collection device for collecting solid particulate matters in dusty gas through a bag filter element made from a fiber braided fabric. The action principle is that dust particles collide with fibers and are intercepted due to inertial force when moving around the filter cloth fibers. The fabric and design of the dust collection bag should achieve effects of high-efficiency filtering, easy dust peeling and durability to the greatest extent. The selection of the dust collection bag is of vital importance and directly influences a dust collection effect of the dust collector, and the dust collection bag is selected according to factors such as the temperature, humidity and chemical property of gas, particle size, dust concentration, filter air speed, a dust collection mode and so on. Processing methods of dust collection bag: the dust collection bag is mainly divided into a woven filter material dust collection bag, a non-woven filter material dust collection bag and a composite filter material dust collection bag.
1. Woven filter material dust collection bag: vertically arranged warp yarns and weft yarns are woven into the filter material by a weaving machine according to a certain organization rule.
2. Non-woven filter material dust collection bag: the common spinning and weaving processes are not performed, and the fibers are directly subjected to web formation or the yarns are layered, staggered, bonded, needle-punched, melt-blown or spun to form a flaky filter material. 3. Composite filter material dust collection bag: the dust collection bag filter material formed by compositing more than two materials is prepared by more than two methods.