Several common industrial dry dust collectors

Dry dust collector does not need water as a dust removal medium, the main features: the usage of a wide range of most dust objects can use dry dust collector, especially for large-scale centralized dust removal system; dust discharge state is dry powder conducive to centralized processing and comprehensive utilization. The shortcomings are: cannot remove the toxic gases in the gas, improper handling is likely to cause secondary dust. It should be noted that: the treatment of relatively high humidity dust or high temperature gas, the need to take anti-condensation Satan Shi, or easy to produce dust bonding, blocking the phenomenon of the pipeline.
Common industrial dry dust collector can be divided into cyclone dust collector, electrostatic precipitator, bag filter, gravity dust collector.
1. Cyclone dust collector introduction
How it works: dust-laden gas from the inlet into the dust collector between the shell and the exhaust pipe to form a rotating downward swirling. Dust suspended in the external swirling flow under the action of centrifugal force toward the wall, and with the external rotation to the lower part of the dust, discharged from the dust hole. The purified gas forms an ascending swirling flow and is discharged through the exhaust pipe.
Application range and characteristics: cyclone dust collector is suitable for purification of more than 5 to 10 microns of non-stick, non-fiber dry dust. It is a simple structure, easy operation, high temperature, equipment costs and low resistance (80 to 160 mm water column) purification equipment, cyclone dust collector in the purification equipment is the most widely used.
2. Bag filter introduced
Working principle:
⑴ gravity sedimentation effect - dust-laden gas into the bag filter, the particles, than the heavy dust, under the action of gravity subsidence, which is exactly the same role as the sedimentation room.
⑵ Sieve effect - when the dust particle diameter than the gap between the filter material fiber or filter between the dust gap between the dust in the air through when it is blocked, which is known as the role of screening. When the accumulation of dust on the filter, this effect is more significant.
⑶ Inertial force effect - air through the filter, can be around the fiber, and the larger dust particles in the role of inertial force, still according to the original direction of movement, then collided with the filter was captured.
Bag filters have been used in a wide range of industrial sectors for a long time to capture non-bonded non-fibrous industrial dust and volatiles to capture dust particles up to 0.1 micron.
3. Gravity dust collector introduction
How it works: Suddenly reduce the flow rate and change the flow, the larger particles of dust under the action of gravity and inertial force, and gas separation, settling to the bottom of the cone cone. Belong to coarse dust. The upper part of the gravity dust collector is provided with an interlocking valve, the electric winch is opened and the lower part of the gravity precipitator is arranged. A gravity precipitator is a device that separates dust from a gas by means of gravity settling of dust. The process of dust settling by gravity is that the flue gas enters the gravity settling device from the horizontal direction. Under the action of gravity, the dust particles gradually settle down and the gas continues to move in the horizontal direction, so as to achieve the purpose of dust removal.