Coalmines are 1 of the most harmful work places in the world. The coal gives temperature and often also electricity but output of coal sometimes means fatal incidents, fuel explosions or other problems, which are normally explained in the newspapers when the worst occurs.
Nonetheless, the increasing of the protection in the coalmines are an essential problem for many individuals who is concerned the mines’ lives and quality of work.
For this cause, it is very important to follow with the security laws at any workstations. Another important problem is making usage of the right underground mining tools.
This equipment should be controlled by well-qualified workers who are familiar with the security rules and know how to use the machines correctly to avoid dangerous. (drilling underground)
Beneath the planet, in the coalmine, here are few equipments which help miners to output the coal. They are: longwall shearer, boom-type roadheader and coal crusher.
The 1st machine is named longwall shearer. It is a exploration tool, which works below ground, in the so-called exploration wall, or in the destination where the coal is straight output. It moves making use of the unique conveyor (called scrapers); it does not make use of caterpillars (such as boom-type roadheader). The CM user works such a device by the remote control. (see roof bolter)
The second equipment used below ground is called 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 stone and move ahead. The gained coal is transported at the bottom of the boom-type roadheader.
The last appliance, which will be introduced in this text, is named coal crusher. It is a tool used for crushing coals into smaller parts. Here are devices for crushing mineral coal and brown coal, too.