The principle is that the dust-cont

The principle is that the dust-containing gas from the inlet into the tangent direction, air flow in the rotational movement, the air flow up and down separation, forming a double helix motion, dust on the boundary of the double helix produced separation effect, resulting in thicker dust particles will fall or fall. By separating the air flow to the outer wall, a portion of the dust is discharged from the middle opening of the bypass separation chamber. The remaining dust is then re-moved by the lower airflow. The upper spiral air flow has the effect of wrapping fine dust particles, which improves dust removal efficiency. This part of the fine dust particles is transported by the upper spiral gas flowing up, forming a strongly rotating upper dust ring under the upper cap, which enters and flows into the upper opening of the bypass separation chamber together with the upper spiral air flow. Through conical cylinders, internal air flows and converges, purified gas is discharged from the exhaust pipe and separated dust flows into the hoppe