What is the formula for calculating the air volume of a medium efficiency bag filter?

When choosing a bag filter, it is not the more the number of bags the better. If the number of filter bags is increased, the air area of the filter will be increased, and there will be too many filter bags installed on the filter of a certain size, resulting in too small a spacing between the filter bags and squeezing each other when the air comes out, instead of making the effective air area smaller, the wind boy is reduced and the wind resistance rises sharply, so the number of filter bags should be calculated in the right amount.

How to calculate the air volume of the middle-effect bag filter?

Filter air volume: Q=S*V; L=600mm; H=595mm, P=6, efficiency is 65, V=0.25m/s;

then filter area: S=L*H*P*2=0.6*0.595*6*2=4,284 m2;

Rated air volume: Q=4284*0.25*3600 ( converted to wind miles per hour) = 3855m2/h;

In practice, the airspeed will increase by up to 10% if the overdraft is used. But in this case, over-speed bag life will be reduced, when to determine the value of the air volume, we can choose the filter bag, if the bag is out of the wind, the bag expansion, stretching close to 50mm, to avoid squeezing between the bags, the installation size W1 value should be greater than 60mm (calculation can take the value of 70mm) bag number P = W/W1, if the filter width W = 595mm, the number of bags = 595/ 70 = 8.5, so the number of bags for 8.

In summary, the number of bags related to the medium efficiency bag filter, in the choice of bag filter, not the more the better, according to the actual number of bags needed to make, so as not to cause unnecessary damage.