METHOD TO PRODUCE BRIQUETTE FUEL Russian patent published in 2013 - IPC C10L5/02 C10L5/14 C10L10/02 

FIELD: power engineering.

SUBSTANCE: method to produce briquette fuel includes stages for preparation of initial components, mixing, pressing and drying. Components used are a carbon-containing material, such brown coal medium-temperature coke of the initial grain-size composition, a mineral binder, such as subcoal aleurolite, a strengthening modifier, such a 3% aqueous solution of a polyvinyl alcohol (PVA) or an aqueous solution of 10% flour paste, a hydrophobe modifier, such as fuel oil of M100 grade and water, at the following ratio of components, wt %: mineral binder - 1-10; strengthening modifier - 1-30; hydrophobe modifier - 1-10; water - 1-30; carbon-containing material - balance. After mixing of components the briquette mass is pressed into briquettes under pressure of 20-200 MPa, and then briquettes are dried at the temperature 100-250°C.

EFFECT: method improvement.

4 cl, 15 ex