Cremation method
AssigneeMessr. Griesheim GmbH
InventorHerbert Marz
Life of this patent
Estimating the term…
Abstract
A method and installation for the cremation of bodies in coffins. The coffin is placed in a crematorium furnace in the wall of which at least one burner is disposed. Conbustion occurs in a chamber of the crematorium furnace without naturally-occurring air and with the burning of the coffin supplying energy along with part of the recirculated flue gas in which oxygen has been added. The flue gas fed back to the crematorium furnace is recirculated uncooled. The temperature at the crematorium furnace is maintained by the burning coffins and the oxygen-enriched recirculated flue gas.
Claims19
A method for cremating bodies in coffins in a crematorium furnace, the crematorium furnace having a cremation chamber, a heat exchanger, mixers, a chimney, and a control unit comprising at least one temperature sensor, at least one burner, and a conduit for removing flue gas generated during cremation, the method comprising the steps of:
- establishing a flue gas cycle whereby at least half of the flue gas leaving the crematorium furnace is recirculated to the crematorium chamber without being cooled;
- admixing oxygen with the recirculated flue gas to effect cremation in the crematorium furnace without supplying any naturally occurring air;
- the control unit maintaining the temperature of the cremation process within a predetermined range by regulating the supply of the recirculated flue gas/oxygen mixture to the at least one burner;
- and,
- switching off the at least one burner when, as a result of the energy made available by burning coffins with oxygen only being supplied via the mixture of oxygen and recirculated flue gas, the temperature in the crematorium furnace is sufficient for maintaining the cremation process.
An installation for cremating bodies contained in coffins, said installation comprising:
- a crematorium furnace;
- at least one burner to which fuel is supplied, said at least one burner mounted to a wall of said crematorium furnace;
- a source of oxygen;
- two mixers for creating a flue gas/oxygen mixture therein;
- a conduit connected to said crematorium furnace for the removal of flue gas from said crematorium furnace;
- a conduit connected to each of said mixers and to said flue gas removal conduit for recirculating flue gas to the respective mixers;
- at least one temperature sensor connected to said crematorium furnace;
- and
- a control unit operably connected to said at least one temperature sensor for regulating the supply of the flue gas/oxygen mixture to said at least one burner so that the temperature in said crematorium furnace remains within a predetermined range, and so that said at least one burner is switched off when, as a result of the energy made available by burning coffins with oxygen only being supplied via the flue gas/oxygen mixture, the temperature for burning the coffins is achieved,
- wherein oxygen from said source of oxygen is 90% pure and is admixed with at least a part of the flue gas diverted for recirculation to one of said mixers, which admixture is supplied to said at least one burner, and wherein oxygen which is at least 99% pure is admixed with the other part of the flue gas diverted for recirculation to the other of said mixers and is supplied to said crematorium furnace.
Dependencies are inferred from the claim text.