TECHNOLOGY OF WATERCARBON FUEL COMBUSTION IN POWER BOILERS
Purpose: to develop and prove the technology of application coal and carbonaceous wastes in the form of coal-water fuel (WCF), simplifies handling of solid fuels. Based on a review of the existing level of boiler and combustion equipment and experience of application of WCF the “ProEnergoMash” company developed and proposed a new scheme of vortex WCF combustion in power boilers. The scheme is proved by undertaking a detailed mathematical modeling of combustion processes on the example of the oil-gas boiler P-56GM and BKZ-75. The calculation shows that a toroidal vortex is forming under the constriction. The high-temperature core surrounds the vortex. It provides a multiple circulation of particles in the area of active burning and creates the conditions of sustainable ignition and complete combustion with the suppression of the emission of NOx and SO <sub>2</sub>.