METHOD FOR INCINERATION OF MILLED SOLID FUEL AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC F23C6/04 

FIELD: power industry.

SUBSTANCE: device for incineration of milled solid fuel consists of two stages, the first stage is made in the form of gas generator and the second stage is in the form of post-combustion chamber, the gasification unit of fine fraction contains co-axially primary countercurrent and secondary countercurrent flame tubes, a turbulence chamber interposed between them, containing flame tube whose diameter is larger than the diameters of the primary countercurrent and secondary countercurrent flame tubes, each primary countercurrent and secondary countercurrent flame tubes contain tangential nozzle swirlers that form a twist of flows with the opposite direction of the angular velocity vectors, wherein the primary countercurrent flame tube in the plane of tangential nozzle swirler contains a nozzle coaxial to its central axis, the second stage comprises a cylindrical body, a flame tube, tangential nozzle swirler, outlet nozzle with a central inlet, located in the plane of the tangential nozzle swirler, and an outlet, a pre-chamber with inlets and outlets, wherein the tangential nozzle swirler forms flow twist that coincides with the direction of flow twist angular velocity in the primary countercurrent flame tube, the nozzles of air supply, removal of mixture of solid particles and gas, wherein the air supply nozzle communicates with the tangential nozzle swirler, and the nozzle for removal of mixture communicates with the flow part of flame tube in opposite to the tangential nozzle swirler end. The nozzles are installed tangentially on the inner surface of casing so that the angular velocity vectors of the air flow and the flow of mixture of solid particles and gas coincide in direction with the angular velocity vector of air at the outlet of nozzle swirler.

EFFECT: increase the efficiency of work process of fuel combustion by increasing productivity, economic and environmental characteristics, expanding the type of fuel burned and increasing the reliability of work process.

2 cl, 6 dwg