Drilling

Drilling (occupational health). Drilling channel (holes) is made by means of drills percussion-rotary type, operating by means of compressed air. Work driller, especially when drilling manual punch, requires considerable physical effort. In mining and mining apply electrovalence, or so-called rotary drilling. In connection with less dust, vibration or less noise it has advantages over pneumatic drilling. The main occupational hazards when working driller are unfavourable microclimatic conditions, increased noise (see), vibration, emission of dust (see) and sometimes gases, the absence of daylight when working in underground workings.
To reduce the effect of vibration on the body and facilitate labour driller use a variety of fixing devices.
The most harmful industrial factor when drilling is fine dust, which can become a cause of pneumoconiosis (see).
In order to prevent pneumoconiosis when drilling conduct anti-dust measures, the most important of which is the washing of the blast holes with water, or the so-called wet drilling. Dry dust holding has a number of hygienic advantages in comparison with the washing of water - more fully recovered small fractions of dust, no wet clothes and shoes driller. The greatest effect in the fight against dust content in the air when drilling is achieved through the use of complex dust technological activities (replacement of pneumatic drilling elektrovilcieniem, improvement of forms drill bits, drilling deep wells and others) and sanitary purposes (washing, efficient ventilation of production).