Non-Abrasive Products Grinding

ANIVI proposes its Roller Mill, which works in a closed circuit, with a highly efficient Air Classification equipment, which ensures the fineness of the product obtained.

Its typical use is the grinding of semi-hard and non-abrasive minerals, being capable of grinding to fines between 25µ and 150µ. When the product has a little moisture, it can be dried simultaneously while grinding with the addition of hot air.

Functioning

The feeding system adjusts to find the optimum working point with a regular feeding. The grinding is carried out by the pressure produced between the rotating pendulums and the track. The pressure can be modified by varying the turning speed of the machine.

Simultaneously, the main fan blows air into the grinding chamber, dragging the fines that are continuously being produced. The dust-laden air jet is drawn into the Classifier, located in the upper part of the Mill, where the coarse particles are rejected and the dust-laden jet passes to the Cyclone, where the classified product is decanted. This vein is blown back into the Mill, in this way the closed circuit is produced: Mill-Classifier-Cyclone-Fan-Mill.

When treating products with humidity and hot gases are added, it must be taken into account that the water vapor passes through the Bag Filter, therefore, to avoid condensation, all hot areas must be insulated

Materials for Grinding

Calcium carbonate

Clay, Sepiolite

Coke Petroleum

Dolomite

Bentonites

Boracic Products

Competitive advantages

Instant fineness change

Fineness changes are made remotely and very easily from the control panel, even with the mill running.

Automatic feeding

The feeding speed is adjusted automatically with the capacity of the mill, that is, increasing or decreasing it in line with its production, for this, the consumptions of the mill and the main fan are taken into account.

Emission control

Practically the entire installation is in depression, so that even if there are openings in the air circuit, the dust does not go out to the outside environment. Also, the entire circuit breathes through a bag filter.

Simultaneous drying and grinding

These plants are designed to have the possibility of operating with simultaneous drying, when the moisture content of the product so requires, thus achieving that the production costs are really reduced as can be in the case of grinding fossil fuels; like coal, petroleum coke.

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Non-Abrasive Products