PREPARING MILK OF LIME
DSL lime milk plants represent the ideal solution for the industrial preparation of mixtures and suspensions based on water and hydrated lime or lime hydrate (Ca(OH)2) or calcium carbonate (CaCO3) with concentrations that can vary from 3% to 15%. Lime milk is a product used in many sectors, like building (construction), agriculture, chemistry, ecology and food; among the most common uses we can point out the neutralization of pollutants contained in liquid effluents (dirty water treatment), the improvement of acid soils, the preparation of agricultural pesticide mixtures, desalination, the production process of some foods and the cooling of devices used in rock cutting.
LIME STORAGE AND DISSOLUTION
The plant consists of one or more silos for storing hydrated lime and a DLS dissolver with agitator into which water and lime are fed. According to the estimated consumption and the characteristics of the installation site either traditional vertical monolithic, telescopic, modular panel silos or EUROSILO horizontal silos with low environmental impact can be chosen. The dissolver is equipped with a paddle agitator or marine propeller agitator, which allows the lime to be diluted in water in a homogeneous manner, avoiding the formation of lumps and is supplied with inspection doors, an overflow outlet, a dust vent with a filtering system and lifting hooks. The plant works autonomously depending on the established parameters and set levels, according to the weight percentages and concentrations required by the downstream process.
VOLUMETRIC DOSING AND ELECTRONIC WEIGHING
The plant can have either batch or continuous production and the system can be managed in timed volumetric mode, with control via level indicators, or via electronic gravimetric weighing with decreasing weight load cells. The electronic weighing system guarantees a high precision in the dosages, homogeneity in the mixed solution and constancy of the results, detecting and correcting eventual problems linked to the dosages of the materials such as, for example, the formation of bridges inside the silos that prevent the lime from flowing out. Finally, the weighing system allows the control and storage of data related to the total consumption of water and lime.