The briquetting processing of the material in pieces of geometrically regular and uniform in each case form, almost the same mass - briquettes (French briquette). When Briquetting create additional raw materials of fine materials (mainly fossil fuels and ores), whose use is inefficient, or inconvenient, as well as recycled waste (culms, sludge, dust, slag, metal shavings, etc.). Feasibility Briquetting in each case, the economically justified.
Depending on the source material is Briquetting with a binder at intermediate pressures (10-50 MN/m2) and without binders at high pressures (100-200 MN/m2). For briquettes of high quality material, directed at pressing, must meet certain requirements (fractional composition, humidity, temperature, etc.).
Briquetting of fossil fuels (Dropped out of stone and similar old brown coal with a relatively strong mechanical structure, private’s weakly structured young brown coal and peat) is produced mainly for energy and public utilities in the briquette factories. Ash obtained briquettes to 20%. They are well opposing gravitational forces, withstand long storage in the open air, are not destroyed before the end of combustion. Briquetting is used as part of new methods of coking for metallurgical coke from the gas and weakly caking coal. Lean coal, anthracite, the old brown coal, semi-briquetted with binders (coal tar pitch in solid or molten liquid form, petroleum bitumen, etc.).