| 摘要 |
Process and apparatus for the combustion of solid fuels, preferably coal, in pulverised form, which is mixed with a carrier liquid such as water and/or oil thus forming an emulsion, the fuel emulsion being sprayed for this purpose through an approximately annular inlet opening (10) into a combustion chamber (22), so that a flow profile (66) approximately like a hollow cone arises. A reduced pressure (region 60) is built up within this flow profile (66), directly behind the fuel emulsion inlet opening (10) which opens into the combustion chamber (22), so that a portion of the hot combustion gases and a residue of unburnt fuel particles are recirculated centrally. Moreover, gas inlet openings (12',14,16,18,20), through which the gas or air is introduced into the combustion chamber (22), are provided in the end (42) of the combustion chamber (22), with their flow path running helically and concentrically with the axis (40) of the inlet opening (10) which opens into the combustion chamber (22) for the fuel emulsion. Thus the fuel emulsion sprayed into the combustion chamber (22) undergoes a rotational motion, so that the flow profile like a hollow cone undergoes a strong fanning out or broadening out into a bell-shaped or apple-shaped profile (66). By the stated measures, an extremely long particle path (68) on the shortest length ... Original abstract incomplete. <IMAGE>
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