Types of filter bags and their advantages

Bag dust collectors (bag filters) are a type of dust removal systems with high efficiency. In fact, the bag filter is an air pollution control system that removes solid particles in the air with excellent efficiency. These dust collectors include vertical bags with a height of 2300-3200 mm and a diameter of 140-200 mm, which are usually placed in parallel in a metal case and the flow passes through it. Bag filters are usually used for particles with a diameter of about one micron, and if they are designed properly, they will have an efficiency of more than 95%.

Usually, bag filters are made of long cylindrical fabric bags are formed in the form of The surface of bag filters contains small cones that do not allow particles to pass through the surface of the bag filter, when air containing polluting particles enters the filter bag and passes through the surface of the bag filter, a layer of particles forms on the surface of the bag filter. It forms until the air can no longer pass through the surface of the bag filter. Then the cleaning system comes into action and online or offline prepares the bag filter to perform the filtration process.

Bag filters and storage racks air compressor Centrifugal fan Collector hopper Dust extraction system Cleaning system of bag filters main body Silicone or spark arrester electric valve venturi Jet polish control board

Usually, filtration in bag filter systems is done by one of the following four mechanisms: Inertia of particles Brownie Dart moves Diffusion properties of particles Electrostatic properties of particles

In the mechanical shaking method, one side of the cylindrical bag filters is connected to a moving plate, which is vibrated by a motor, and thus by shaking If you eat bag filters, the dust will come out of them. It is low, and for this reason, many bag filters are needed and they occupy a lot of space.

In the bag of reverse air filters, which are known as industrial dust collectors, the ends of the bag filters are connected to a metal plate and the other side of them is suspended above the filter bag. Usually, this model of bag filters consists of several parts to enable the continuous operation of the filtration system. A lot of space is needed for this type of bug filter.

In pulse jet filtration systems, each filter bag is individually supported by metal cages. After the polluted air passes through the bottom of the bag filter chamber, the dust and polluting particles are trapped by the outer surface of the bag filters and the purified air comes out from the top of the bag filter. In this method, they use a compressed air jet pulse to clean bag filters from dust particles.

Efficiency and high efficiency Completely new and modern design low consumption low voice Replaceable and repairable parts Suitable for environmental conditions

Bag filters can be exposed to air flow in two ways: Installation after the ventilator In this method, the current is blown into the system. But due to the fact that in this case, the device will work at a pressure higher than the atmosphere, the possibility of contaminated dust leakage is very high, and today this method is obsolete. Installation before the ventilator In this method, the current is sucked from inside the system, and due to the fact that the device works at a lower pressure than atmospheric pressure, there is no possibility of dust leakage. Also, in this method, it is not possible for moving parts of the ventilator to collide with dust particles.