Environmentally friendly FBD low-noise axial flow local ventilation fan

Local ventilation fans for coal mines are essential ventilation equipment in the mining and excavation production process, especially the FBD series explosion-proof, pressure-in, contra-rotating axial flow local ventilation fans. These are not only widely used in the pressure-in long-distance ventilation of large and small cross-section roadways in coal mine underground mining, but also in ventilation and air exchange in industrial fields such as metallurgy, petrochemicals, power, railways, and highway tunnels. This series of ventilation fans are reasonably matched with the ventilation parameters of coal mine roadways for excavation construction. This series of fans features high flow rate, high wind pressure, and high efficiency. However, during the operation of the ventilation fan, harsh aerodynamic and mechanical noise is generated, which has affected the physical and mental health of workers during coal mine production. Currently, most of the local fans we use adopt a double-layer shell filled with sound-absorbing materials to reduce noise, but the overall radiated noise of the running fan is greater than 100dB(A), which cannot meet customer requirements for low noise.

I. Scope of Application

The FBD series explosion-proof, pressure-in, contra-rotating axial flow local ventilation fans are suitable for use in coal mines, metal mines, chemical mines, and other industrial sectors for conveying air containing gas, coal dust, and other explosive hazards in mine intake roadways. They are used with positive pressure air ducts for pressure-in ventilation; they can also be used as tunnel construction ventilation equipment.

II. Model and Meaning

Ventilation model and meaning are as follows: Explosion-proof, pressure-in, contra-rotating axial flow local ventilation fan for mines

III. Performance Parameter Table

Performance parameter table for the FBD series explosion-proof, pressure-in, contra-rotating axial flow local ventilation fan

Product Features

1. Uses contra-rotating direct-drive, reducing the guide vane device, increasing fan pressure while reducing airflow resistance.

2. The fan is designed with an intake tower silencer, and the inlet and outlet are equipped with spiral composite silencers. Using impedance composite silencing effectively reduces fan noise.