The main task of SIG-1 is the reduction of coal self-heating tendency by the deactivation of its surface, and thereby the extension of fire incubation period.
It is used for:
It can be used in underground workings of coal mines in workings of levels ‘a’, ‘b’ or ‘c’ methane explosion hazard.
SIG-1 is a class 4 inhibitor of coal self-heating process according to the classification developed in Central Mining Institute (GIG).
SIG-1 was researched and tested multidimensionally. The tests showed that foam generated is non-flammable, non-toxic, and is not prone to electrification and electrostatic charge accumulation. It does not has a negative effect on the functioning sensors of carbon monoxide monitoring and automatic methane monitoring.
SIG-1 was assessed positively by Department of Toxicology and Risk Assessment of National Institute of Public Health – National Institute of Hygiene, attestation no. PZH/HT-2611/2012, and has a certificate issued by certification body of Central Mining Institute (GIG) no. B/2237/2011.
Products for the production of SIG-1 are:
Aqueous mixture of components A and B is prepared in the modular mixer MP, and then through the hose line and feed pump it is pumped to the foaming device mounted in the point of SIG-1 application, where the mixture is foamed and ejected by means of compressed air or nitrogen.