Crematorium oven

Abstract

The invention relates to a crematorium oven 1 comprising at least one combustion chamber 2 with a ceiling, wall 2.1 and base 3 on which to place the object to be cremated, a heat supply system 4, a combustion air supply 5 and a flue gas outlet 6. Within the ceiling and/or the wall 2.1 and/or the base 3 of the combustion chamber 2 at least one combustion air supply channel 7 and at least one flue gas return channel 8 are provided whereby the flue gas return channel 8 in the ceiling, and/or the wall 2.1 and/or the base 3 has an inlet 8.1 and an outlet 8.2. In the ceiling and/or wall 2.1 and/or in the base 3 of the combustion chamber 2 the at least one combustion air supply channel 7 opens into the at least one flue gas return channel 8, so that with the supplied combustion air a suction effect of the combustion air supply into the combustion chamber 2 is brought about. In this way at least part of the flue gas produced during the combustion process is drawn into the inlet 8.1 of the flue gas return channel 8 and emitted through the outlet 8.2 of the flue gas return channel 8 into the combustion chamber 2 and is thereby supplied to the combustion process again.

1 . Crematorium oven ( 1 ) comprising at least one combustion chamber ( 2 ) with a ceiling, wall ( 2 . 1 ) and base ( 3 ) on which to place the object to be cremated, a heat supply system ( 4 ), a combustion air supply ( 5 ) and a flue gas outlet ( 6 ),
 whereby within the ceiling and/or the wall ( 2 . 1 ) and/or the base ( 3 ) of the combustion chamber ( 2 ) at least one combustion air supply channel ( 7 ) and at least one flue gas return channel ( 8 ) are provided,   whereby the flue gas return channel ( 8 ) in the ceiling and/or the wall ( 2 . 1 ) and/or the base ( 3 ) has an inlet ( 8 . 1 ) and an outlet ( 8 . 2 )   whereby in the ceiling and/or wall ( 2 . 1 ) and/or in the base ( 3 ) of the combustion chamber ( 2 ) the at least one combustion air supply channel ( 7 ) opens into the at least one flue gas return channel ( 8 ), so that with the supplied combustion air a suction effect of the combustion air supply into the combustion chamber ( 2 ) is brought about,   whereby at least part of the flue gas produced during the combustion process is drawn into the inlet ( 8 . 1 ) of the flue gas return channel ( 8 ) and emitted through the outlet ( 8 . 2 ) of the flue gas return channel ( 8 ) into the combustion chamber ( 2 ) and is thereby supplied to the combustion process again.   
     
     
         2 . Crematorium oven according to  claim 1  characterised in that at least one combustion air supply channel ( 7 ) opens into several flue gas return channels ( 8 ). 
     
     
         3 . Crematorium oven according to  claim 1  characterised in that the inlet ( 8 . 1 ) of the at least one flue gas return channel ( 8 ) is arranged in the wall ( 2 . 1 ) of the combustion chamber above the outlet ( 8 . 2 ) of the at least one flue gas return channel ( 8 ) 
     
     
         4 . Crematorium oven according to  claim 1  characterised in that the combustion chamber ( 2 ) has a first and a second combustion chamber section ( 2   a,    2   b ) whereby the first combustion chamber section ( 2   a ) is designed for the incineration of the object to be cremated and the second combustion chamber section ( 2   b ) is designed for the afterburning of the ashes and/or the cremated remains from the first combustion chamber section ( 2   a ). 
     
     
         5 . Crematorium oven according to  claim 4  characterised in that the base ( 3 ) brings about at least partial separation of the first combustion chamber section ( 2   a ) from the second combustion chamber section ( 2   b ). 
     
     
         6 . Crematorium oven according to  claim 5  characterised in that by way of at least one flue gas return channel ( 8 ) in the base ( 3 ) a connection between the first and the second combustion chamber section ( 2   a,    2   b ) is produced. 
     
     
         7 . Crematorium oven according to  claim 6  characterised in that the base ( 3 ) has several elevations ( 9 ) for positioning the object to be cremated at a distance from the base ( 3 ). 
     
     
         8 . Crematorium oven according to any one of  claim 7  characterised in that the flue gas outlet ( 6 ) is connected to the second combustion chamber section ( 2   b ). 
     
     
         9 . Crematorium oven according to  claim 2  characterised in that the inlet ( 8 . 1 ) of the at least one flue gas return channel ( 8 ) is arranged in the wall ( 2 . 1 ) of the combustion chamber above the outlet ( 8 . 2 ) of the at least one flue gas return channel ( 8 ). 
     
     
         10 . Crematorium oven according to  claim 2  characterised in that the combustion chamber ( 2 ) has a first and a second combustion chamber section ( 2   a,    2   b ) whereby the first combustion chamber section ( 2   a ) is designed for the incineration of the object to be cremated and the second combustion chamber section ( 2   b ) is designed for the afterburning of the ashes and/or the cremated remains from the first combustion chamber section ( 2   a ). 
     
     
         11 . Crematorium oven according to  claim 3  characterised in that the combustion chamber ( 2 ) has a first and a second combustion chamber section ( 2   a,    2   b ) whereby the first combustion chamber section ( 2   a ) is designed for the incineration of the object to be cremated and the second combustion chamber section ( 2   b ) is designed for the afterburning of the ashes and/or the cremated remains from the first combustion chamber section ( 2   a ). 
     
     
         12 . Crematorium oven according to  claim 2  characterised in that by way of at least one flue gas return channel ( 8 ) in the base ( 3 ) a connection between the first and the second combustion chamber section ( 2   a,    2   b ) is produced, wherein the combustion chamber ( 2 ) has a first and a second combustion chamber section ( 2   a,    2   b ) whereby the first combustion chamber section ( 2   a ) is designed for the incineration of the object to be cremated and the second combustion chamber section ( 2   b ) is designed for the afterburning of the ashes and/or the cremated remains from the first combustion chamber section ( 2   a ). 
     
     
         13 . Crematorium oven according to  claim 3  characterised in that by way of at least one flue gas return channel ( 8 ) in the base ( 3 ) a connection between the first and the second combustion chamber section ( 2   a,    2   b ) is produced, wherein the combustion chamber ( 2 ) has a first and a second combustion chamber section ( 2   a,    2   b ) whereby the first combustion chamber section ( 2   a ) is designed for the incineration of the object to be cremated and the second combustion chamber section ( 2   b ) is designed for the afterburning of the ashes and/or the cremated remains from the first combustion chamber section ( 2   a ). 
     
     
         14 . Crematorium oven according to  claim 4  characterised in that by way of at least one flue gas return channel ( 8 ) in the base ( 3 ) a connection between the first and the second combustion chamber section ( 2   a,    2   b ) is produced. 
     
     
         15 . Crematorium oven according to  claim 4  characterised in that the flue gas outlet ( 6 ) is connected to the second combustion chamber section ( 2   b ). 
     
     
         16 . Crematorium oven according to  claim 5  characterised in that the flue gas outlet ( 6 ) is connected to the second combustion chamber section ( 2   b ). 
     
     
         17 . Crematorium oven according to  claim 6  characterised in that the flue gas outlet ( 6 ) is connected to the second combustion chamber section ( 2   b ).