Acid mist waste gas is introduced into the purification tower through the wind pipe, passes through the filling layer, and undergoes a complete gas-liquid contact absorption and neutralization reaction with sodium hydride absorption liquid. After purification, the acid mist waste gas is further dehumidified and demisted by the mist removal plate before being exhausted into the atmosphere by the fan. The absorption liquid is pressurized by a pump at the bottom of the tower and sprayed down from the top, returning to the bottom for recirculation. The purified acid mist waste gas meets the discharge requirements of the Guangdong Province local standards and is below the national discharge standards.

The equipment employs a packed tower to purify waste gases, suitable for both continuous and intermittent emissions treatment. The process is simple, with convenient and straightforward management, operation, and maintenance, without affecting the workshop's production. It has a wide application range, capable of purifying multiple pollutants simultaneously. The pressure drop is low, with a large operational flexibility, and excellent demisting performance. The tower can be made from FRP/PP/PVC materials based on actual conditions. The packing uses low-resistance Pall rings, which can thoroughly remove odors and harmful substances from the gas.

The equipment is available in single-tower and double-tower configurations. It features a circular tower design, assembled by segmental flange connections. It is composed of a storage tank, tower body, air inlet section, spray layer, packing layer, swirl mist removal section, exhaust cone cap, and inspection openings.