Reactive injection systems for the reduction of acids and dioxins

In the foundry industry, emission control often involves the use of sophisticated reagent injection systems. These systems neutralize and absorb pollutants and are composed of three main components: the storage station, the dosing unit and the injection section in the pipe.

Reagent storage varies depending on hourly consumption. For large volumes, silos with automatic loading are used, while for lower needs, we can opt for tanks or bunkers manually fed with 20 kg bags or big bags. This flexibility allows the system to adapt to the specific needs of each installation.

In the center of the installation is the automatic dispenser, a precision equipment equipped with a scraping mechanism and a discharge screw. It feeds the reagent into the pneumatic transport pipe. To ensure an accurate dosage, weighing cells are integrated that monitor the reagent consumption in real time, with the data being visualized through a PID interface.

The transport of the reagent to the main pipe is provided by a relaunch fan, connected by a pipe system carefully designed to prevent jams and ensure a constant flow.

Depending on the nature of the pollutants, we use a wide range of reagents. Among the most common are super ventilated hydrated limestone, activated charcoal, or a special solution called sorbalite, composed of 90% lime and 10% activated carbon. This diversity allows us to effectively address a wide range of pollutants, from acidic gases to volatile organic compounds.

By integrating these advanced reagent injection systems, we not only significantly improve air quality in foundries, but also optimize resource consumption, thus aligning ourselves with the latest standards of environmental efficiency and protection.