Operating method for a solid fuel burner

Abstract

The invention belongs to the engineering domain of heating systems, in particular heating systems for chipped to free-flowing fuels in solid form and relates to an operating method for a solid fuel burner. The aim of the invention is to design an operating method for a solid fuel burner, which achieves an efficient operating mode for said burner with the main focus on minimizing the production of aggressive substances such as acids. To achieve this, according to the invention, the burner operation has a double or triple combustion phase profile and the burner operates with two different groups of combustion material.

1 . Operating method for a solid fuel burner,
 characterized in that   the start of the burner is performed with a starting combustion material—combustion material group  1 —which does not form aggressive substances such as acids at a temperature below the burner operating temperature applicable to the burner, that, to this end, the combustion material is supplied from a first combustion material entry ( 7   a ) predetermined for this purpose, wherein the second combustion material entry ( 7   b ) for the main combustion material—combustion material group  2 —is initially not yet active, that upon reaching the operating temperature of the burner the combustion material supply at said first combustion material entry ( 7   a ) is deactivated and, instead, the combustion material supply at the second combustion material entry ( 7   b ) for the main combustion material is activated,   that the continuous operation of the burner is continued—provided that its temperature is not below its operating temperature—wherein, if the second combustion material entry ( 7   b ) is configured as a multiway entry, it can be supplied with alternative combustion materials in combustion material group  2  clocked with respect to time or in dependence on other conditions and can be performed clocked with respect to its operation,   that the termination of the combustion process, when the burner is currently in the state of combusting combustion material of combustion material group  2 , is performed in dependence on the current combustion conditions either in such a way that initially the combustion material supply of combustion material group  2  is deactivated and the combustion material supply of combustion material group  1  is activated, and that the combustion is then stopped out of this combustion material group, or that the combustion is stopped in the state of combusting combustion material of combustion material group  2 .   
   
   
       2 . Operating method according to  claim 1 ,
 characterized in that   the combustion process is performed alternately with combustion materials in combustion material group  2  and/or alternately between combustion material groups  1  and  2 .