Generally speaking, manufacturing cement requires the following steps:

1. Crushing and storing the raw materials
The most important raw material for the production of cement is limestone. Other potential ingredients are clay, sand, shale, fly ash and bauxite. In a first step, these raw materials are crushed, so as to reduce their size.

2. Blending and milling the crushed materials to produce raw meal
Next, the crushed raw materials are blended in the correct proportions. The resulting mixture is then ground into a fine powder, called “raw meal”. At this stage, corrective materials can be added to achieve the desired composition.

3. Burning the raw meal to produce clinker
Subsequently, the raw meal is burnt at very high temperatures in a kiln, fueled by oil, pulverized coal or petroleum coke. This turns the raw meal into a dark grey gravel-like matter, called “cement clinker”.

4. Grinding the clinker with gypsum to produce the final cement
Finally, the clinker is ground to a fine powder and blended with small amounts of gypsum to extend the setting time of the final product: cement.

AMECO circular portal reclaimer with stacker for clinker, in operation at Lafarge Ciments in Port-la-Nouvelle, France

AMECO longitudinal bed blending storage for limestone provided to JK Lakshmi Cement in Udaipur, India

AMECO circular bed blending storage for limestone, delivered to KCP in Ramakrishnapuram, India

AMECO’s high-quality equipment plays a role in each of these steps. Large volumes of the raw materials, additives and fuels are stored with the help of our stacker/reclaimer systems. This guarantees the continuous production of cement, even when there are supply interruptions.

Next to these strategic material storages, AMECO provides blending beds that are able to homogenize the afore mentioned products. Products of consistent quality that increase the efficiency of the cement production process.

Finally, AMECO’s stacker/reclaimer systems enable the storage of the intermediate (clinker) and the final product (cement). When the plant is located near a port, our shiploaders can moreover load these materials – in bulk and/or in bags – into ships for transportation by sea.