Coalmines are one of the most dangerous work locations in the globe. The coal gives warm and usually also electricity but production of coal often indicates dangerous accidents, gas explosions or other problems, which are generally discussed in the newspapers when the worst occurs.

Nevertheless, the improving of the protection in the coalmines are an essential issue for lots of individuals who worries the mines’ lifestyles and excellence of work.For this reason, it is extremely important to follow with the ss7 vulnerability test regulations at any workstations. Another essential problem is using the right underground mining technology. This products should be managed by well-qualified workers who are familiar with the security rules and know how to make use of the machines correctly to avoid dangerous. (underground drilling)Beneath the planet, in the coalmine, generally there are few machines which help miners to output the coal. They are: longwall shearer, boom-type roadheader and coal crusher. The first device is called longwall shearer. It is a mining tool, which works below ground, in the so-called exploration wall, or in the place where the coal is straight output. It moves making use of the particular conveyor (named scrapers); it does not make use of caterpillars (such as boom-type roadheader). The CM operator runs such a tool by the remote control. (see roof bolter)The second equipment used underground is known as boom-type roadheader. It moves making use of caterpillars and works underground where drills roadways in the mine. Its front part with the tool drills the rock and move forward. The gained coal is transported at the bottom of the boom-type roadheader.The final device, which will be provided in this text, is named coal crusher. It is a device used for crushing coals into smaller parts. Here are devices for crushing mineral coal and brown coal, too.

Avoiding hazardous circumstances in the coalmines is the goal of the government and the coalmines’ authorities. Unfortunately, there are always some incidents caused by nature and unacceptable usage of the coalmine products. However, here are less and less of them and the underground mining equipment is excellent quality and safe.