A METHOD AND A BURNER FOR INTRODUCING SOLID,LIQUID OR GASEOUS FUEL INTO A BURNING ZONE OF A KILN

摘要

A method and apparatus for introducing solid, liquid or gaseous burning zone of a rotary kiln for manufacturing cement fuel into a conducted through a duct or ducts and primary air is conducteclinker. Fuel is two annular ducts arranged concentrically with, and around, conducted through at least portion of air in one of the air ducts flowing axially, the fuel duct(s), the in the second of the air ducts comprises air which ~ whereas the portion of air the center axis of the burner, and wherein has a rotary component about the amount of primary air in the two portions is independently controlled, such that the two portions of pri are mixed at a lower velocity in a collecting duct into a single ri ary mixed ed airstream having a desired axial/rotary flow characteristic and y mixed airstream is subsequently accelerated up to a desired, higher discharge this velocityy.