Apparatus for supplying multiple burners with fine-grained fuel

Abstract

With an apparatus for supplying multiple burners with fine-grained fuel from a storage container, with thermal conversion of solid fuels in a gasification reactor, wherein the storage container is equipped with a discharge cone, a solution is supposed to be created with which the required excess gas amounts can be reduced and it is possible to do without separate discharge cones per burner line, without giving up the uncoupling of the burner lines. This is achieved in that the discharge cone ( 1 ) is equipped, at least in certain regions, with a gas-permeable wall region ( 6, 6 ′) and with at least two solids discharge lines ( 15 ) that lead to the burners.

1 . Apparatus for supplying multiple burners with fine-grained fuel from a storage container, with thermal conversion of solid fuels in a gasification reactor, wherein the storage container is equipped with a discharge cone, wherein
 the discharge cone ( 1 ) is equipped, at least in certain regions, with a gas-permeable wall region ( 6 ,  6 ′) and with at least two solids discharge lines ( 15 ) that lead to the burners.   
     
     
         2 . Apparatus according to  claim 1 ,
 wherein   the solids discharge lines ( 15 ) are provided in the cone ( 1 ), below the gas-permeable wall regions ( 6 ) in the direction of gravity.   
     
     
         3 . Apparatus according to  claim 1 , wherein
 the gas-permeable wall regions ( 6 ) in total form the wall surface of an element ( 2 ) of the discharge cone ( 1 ) shaped as a truncated cone.   
     
     
         4 . Apparatus according to  claim 1 , wherein
 the discharge cone ( 1 ) is formed from multiple elements ( 2 ,  3 ,  4 ), particularly elements shaped as truncated cones, which are connected with one another.   
     
     
         5 . Apparatus according to  claim 4 ,
 wherein   the discharge cone ( 1 ) is provided with a closure bottom ( 4 ), which is gas-permeable at least in certain regions.   
     
     
         6 . Apparatus according to  claim 1 , wherein
 a double-walled element shaped as a truncated cone, having a gas-permeable wall region ( 6 ) made from a sintered metal, a perforated metal sheet, or the like, is directly assigned to the storage container for the fine-grained fuel.   
     
     
         7 . Apparatus according to  claim 1 , wherein
 the solids discharge lines ( 15 ) are disposed on the cone at an angle less than 90° relative to the vertical axis, directed downward in the direction of gravity.   
     
     
         8 . Apparatus according to  claim 7 ,
 wherein   the solids discharge lines ( 15 ) are positioned at a right angle relative to the related cone wall ( 14 ).   
     
     
         9 . Apparatus according to  claim 1 , wherein
 the closure bottom ( 22 ) has an inner stirring device ( 19 ) assigned to it.   
     
     
         10 . Apparatus according to  claim 1 , wherein
 the closure bottom ( 22 ) and/or the lower region of the discharge cone ( 1 ), in the direction of gravity (g), is provided with media feed lines ( 23 ,  25 ), particularly for loosening the solid in the cone interior or for applying additives.