1. Selection of filtration speed: The filtration speed is a key factor in the selection of dust removal accessories. It should be based on the nature of soot or dust, the application, dust particle size, viscosity, gas temperature, moisture content, dust concentration, and different filter media and other factors. determine. When the dust particle size is finer, the temperature and humidity are higher, the concentration is greater, and the viscosity should be selected to be lower. Such as ≤ 1m/min; otherwise optional high value, generally should not exceed 1.5m/min. For the dust particle size is large, room temperature, dry, non-sticky, and the concentration is extremely low, you can choose 1.5 ~ 2m/min. When the filtration rate is selected, the net filtration wind speed when reducing the filtration area in one chamber (at the time of cleaning) should not exceed the above values.
2. The filter material should be considered based on the temperature, moisture content, acid, alkali properties, dust viscosity, concentration, and abrasiveness of the dust gas. Generally when the moisture content is small, no acidity is selected according to the temperature of the dust gas. When the temperature is less than or equal to 130°C, a 500-550g/m2 polyester needle felt is used. <250°C, Kevlar Nomex Needle felt or 800g/m2 glass fiber needle felt or 800g/m2 weft double glass fiber fabric or FMS (FMS) high temperature filter material Fiberglass material). When the moisture content is large and the concentration of dust is large, waterproof, oil-repellent filter material (or anti-condensation filter material) or membrane filter material (base cloth should be waterproof needle-punched felt) should be selected. When the dust-laden gas contains acid, alkali and gas temperature ≤ 190 °C, often use Leyton (Pyrene polyphenylene sulfide) needle felt. When the gas temperature is ≤ 240°C and the acid and alkali resistance requirements are not too high, P84 (polyimide) needle felt is used. When the dust-containing gas is flammable and explosive, use anti-static Polyamide needle felt. When the dust-containing gas has both a certain amount of moisture and flammable and explosive gas, use water, oil, and static electricity (three anti-static) Polyester needle felt.
3. Control device, bag filter using PLC microcomputer program control instrument, sub-pressure (automatic), timing (automatic), manual three control methods. Constant pressure control: According to the set differential pressure control, the pressure difference of the dust collector exceeds the set value, and each room automatically clears the dust in turn. Timing control: According to the set time, every other cleaning cycle, each room will be cleaned in turn. Manual control: In the on-site operation cabinet can be manually controlled in turn automatically cleaned each room, can also be cleaned separately for each room. The user selects the control method. When the user does not require it, the supplier is controlled according to the timing.
Stripe Fabric,Striped Upholstery Fabric,Striped Drapery Fabric,Vintage Stripe Fabric
Jiangyin Yaze Wool Textile Co. LTD , https://www.ya-ze.com