How to choose the baghouse filtration velocity

Baghouse filtration velocity size determines the size of the baghouse overall operating efficiency and cost. Therefore, we have to understand how to select the size of the filtration velocity.

Filter the size of the wind speed is mainly determined by the traits of dusty gas, fabric categories as well as the nature of the dust, under normal circumstances are selected in accordance with the dust removal equipment recommended sample data and practical experience of the user. Pulse baghouse filtration velocity of about 1.2 to 2m / s, glass fiber bag filter filtration velocity of approximately 0.5 to 0.8 m / s. The main selection parameters are the following.

A. Type cleaning method according to the different types of dust

Carbon black, silica (white carbon), aluminum, zinc sublimate remaining gas in the gas formed due to condensation and chemical reaction solution, activated carbon is discharged from the cement kiln cement. Filtration velocity of 0.25 to 0.40.3 to 0.50.33 to 0.600.8 to 1.2 m / s.

Sublimate of iron and ferroalloys, foundry dust, alumina, cement mill discharge cement, the carbonization furnace Cheung Wah matter, lime, corundum, plastic, iron oxide, coke, coal. The filtration velocity 0.28 to 0.450.4 to 0.650.45 to 1.01.0 to 2.0 m / s.

Talc, coal, blast cleaning dust, fly ash, ceramic production of dust, carbon black (secondary processing), a pigment, kaolin, limestone, mineral dust, bauxite, cement (from the cooler). The filtration velocity 0.30 to 500.50 to 1.00.6 to 1.21.5 to 3.0 m / s.

II. According to the number of bags

Calculated the total filtration area and the area of ??the single dust bag, you can calculate the bag number. If the the bag room number of each bag is determined, you can also calculated the entire precipitator room number. Although the the precipitator design or selection in the need to determine the number of rooms, but the site layout and easy maintenance considerations, often more than six rooms in addition to sitting room as the double row. Less than 5 chamber precipitator of each chamber is given as a single row.

Selected parameters, dusty gas flow, the nature of the concentration and dust dispersion, wettability, viscosity, etc. In addition to the above two are selected the baghouse filter wind speed parameters. Understand these parameters, we can easily select the size of the baghouse filter wind speed in order to improve the operating efficiency of the dust collector, thereby reducing costs.