Introduction

Filter bag is the key part for bag filter operation process, normally the cylinder shaped bags are vertically hanging inside of bag filter. For impulse bag filter, dust is attached to outside surface of bag, when the dusty gas go through bag filter, dust is collected and gathered on the outer surface of bag, and clean air goes through bag and exhaust open air. The bag cage is inside bag for supporting. It can preventing bag fall down. And it also can use to clean dust cake and re-distribution.

Filter bag material is be selected in accordance with gas temperature, humidity and chemical characteristics, comprehensively considering factors such as particle size, weight, shape, grindability and dust concentration, filtering rate, way of dust removal, emission concentration and bag-type dust remover working system, etc. Normally, pulse-blowing bag-type dust remover uses needle felt and compartment blowback bag-type dust remover or mechanical vibration bag-type dust remover uses woven cloth.

Features

1. Normal filter material is 208 and 901 dacron, its operation temperature does not exceed 120℃, however, operation temperature of glass fiber bag is not more than 250℃.

2. Cotton fabric normally used for dusty gas without corrosivity and temperature below 80-90℃.

Parameter

Name	Material	Gram Weight (g/㎡)	Thickness (mm)	Property m³/㎡·min	Breaking Strength (N/5×20cm)		Breaking Elongation (10%)		Operate Temperature (℃)
					Warp	Weft	Warp	Weft
Polyester needle-felt filer bag	Polyester/polyester filament fabric	500±5%	1.8±10%	12	>1200	>1600	<30	<45	≤130
Polyester anti-static needle felt filter bag	Polyester/polyester antistatic fabric	500±5%	1.8±10%	12	>1000	>1600	<30	<45	≤130
Medium temperature needled felt filter bag	Dacron, PPS/glass fiber woven fabric	700±5%	2.2±10%	8-12	>1000	>1500	<10	<10	≤170
Polypropylene filber needled felt filter bag	PP, PP Yarn	500±5%	2.1±10%	12	>960	>1060	<35	<55	≤90
FMS filter bag	Aramid fiber, glass fiber/glass fiber cloth	800±5%	2.4-3.0	8-15	>1800	>1800	<10	<10	≤260
Nomex needle-felt filter bag	Nomex/ nomex fabric	500±5%	2.2±10%	17	>800	>1200	<35	<55	≤200
PPS needle-felt filter bag	PPS/PPS filament fabric	500±5%	1.8±10%	15	>1200	>1300	<30	<30	≤190
P84 needle-felt filter bag	P84/P84 fabric	850±5%	3.5±10%	8-15	>1800	>1800	<10	<10	≤220
Glass fiber needle-felt filter bag	Glass fiber	900±5%	2.0±10%	8-15	>1800	>1800	<10	<10	≤300