MIXED EXPLOSIVE COMPOSITION Russian patent published in 2016 - IPC C06B31/40 C06B25/04 

FIELD: blasting operations.

SUBSTANCE: invention relates to explosive works, namely to mixed explosive compositions (MEC) used in explosive works on sections, open pits, combined mines and mines while manual and mechanical charging of blast holes, wells and chambers. MEC contains granulated ammonium nitrate and granulated trinitrotoluene with granule size of more than 1.2 mm in amount of at least 96 wt%, less than 3.2 mm - not less than 85 wt%, more than 5 mm - not more than 0.8 wt% and less than 10 mm - 100 wt%. Composition contains 17.0-56.7 wt% of trinitrotoluene and granulated ammonium nitrate - the balance up to 100. Composition contains moisture and volatile substances of not more than 0.6 wt%.

EFFECT: invention ensures minimum concentration of trinitrotoluene in workplace air during charging of blast holes, wells and chambers by pneumatic conveying.

1 cl, 1 tbl