— The most widely adopted method of limestone mining is through opencast pits with bench formation. Limestone mining causes widespread disturbance in the environment. Myriad impacts are observed...

What is required for the lime business is, securing good quality limestone, reliable mining techniques and fine calcination technology. Out of all mineral resources, limestone is the only mineral which Japan, the country poor in natural resources can self-supply and do not have to rely on the export.

Extraction (more commonly referred to as quarrying) consists of removing blocks or pieces of stone from an identified and unearthed geologic deposit. Differences in the particular quarrying techniques used

of the limestone quarries in Japan use the surface mining method (table 1), and many quarries are located near scenic spots. Therefore, ·our exploitation of limestone must be carefully balanced with conservation of nature through such methods as revegetation of quarried areas. The existence of vegetation and forests is fundamental to human life;

In Japan, not only there are many limestone deposits scattered all over the country, but also possess the high characteristics, such as less impurity, small grain size, etc., thereby most of the limestone deposits are suitable enough for high quality end uses.

 — Safe and vibration-free limestone mining in Japan is being enabled by the use of a smart surface miner.

Our company has limestone mines across Japan, such as the Torigatayama Quarry Complex in Kochi Prefecture, the largest mine in the country; the Shiriya Quarry Complex in Aomori Prefecture; the Oita Quarry Complex in Oita Prefecture; and others.

 — The research approach enabled the analysis of the environmental loads associated with the grinding stage in the life cycle of limestone products, from the extraction of raw materials for their wet grinding.

 — Wirtgen's surface miners have been implemented at a limestone mine in Japan in order to extract the mineral without the use of explosives, lessening the noise and vibrations for the local communities.

fine grinding can be achieved by an increase in the frequency of collisions between the grinding media and the particles, and by a large shearing force due to the rotor. In this study, we have performed experiments on the fine grinding of limestone with a SC-mill, and investigated the effects