DEVICE, METHOD AND SYSTEM FOR IN-LINE MONITORING OF THE CONCENTRATION OF ACID MIST

摘要

The invention relates to a device for the real-time monitoring of the concentration of acid mist generated in hydrometallurgy processes that use sulphuric acid. The device comprises means for aspirating atmospheric air disposed to establish a negative pressure difference with the environment, causing a sample of the atmospheric air to pass through an arrangement of communicating vessels that includes an air inlet pipe (20) and an acid absorption reactor (2) containing a siphon tube (3). The device further comprises: a sensor (31) for measuring the pH of the flow of the solution of air in water, which is connected with means (40) that can record and transmit the measurements of the sensor (31); and means for neutralising the solution (10) by means of the dosed input of a water-soluble alkali compound.