The utility model relates to a plant ventilation system, in particular to a workshop ventilation structure for a smelting process producing harmful gas.

Background technology

In the smelting industry, harmful gases are often produced in the smelting process. Therefore, how to eliminate harmful gases is related to the health of the production line staff. For example, zinc electrodeposition workshop in smelter, the surface of open tank in the workshop constantly evaporates acid mist, water vapor and heat. In order to reduce air pollution in the workshop, it is necessary to fully ventilate.

In the past, the conventional practice is to set skylight or roof ventilator on the roof of the workshop to exhaust the air naturally by using the heat pressure or wind pressure caused by the difference of indoor and outdoor temperature. The external wall around the workshop can open the window to naturally enter the air.

There are several disadvantages in this way:

1. the ventilation volume is unstable because of the constant change of outdoor wind speed and temperature, which is not a stable factor.

2. the air flow is not well organized, the work point far away from the outer window of the workshop is polluted, and the outer window is corroded by acid gas for a long time, and the damage is serious.