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Cremation is considered by most health authorities to be the most hygienic form of burial in the world. Rising environmental and health awareness has led to a significant increase in the proportion of cremation burials in recent years. In addition to the aspects of environmental protection, which are laid down in Germany in the 27th Federal Immission Protection Regulation (27th BImSchV), rules for the conception and operation of crematoria were developed in participation of RUPPMANN in the VDI Guideline 3891.
RUPPMANN fully lives up to that requirements with three different furnace systems:
Multi stage incinerator
The multi stage incinerator is the most powerful RUPPMANN system and is now the most widespread. In essence, its strengths are demonstrated by the following features:
- For the cremation phases of main combustion, mineralization and ash cooling, the multi stage incinerator has stacked furnace areas (floors), which are separated from each other by rotating plates. When they are in operation, the combustion residue from each phase passes by gravity into the next area.
- The construction of the efficient furnance requires a two-storey building, whereat the coffin insertion takes place in the upper floor and the cooled ash is removed from the lower level
Flat bed incinerator
A flat bed incinerator is used where the building only allows one floor. The combustion takes place here on a so-called stove plate (flat bed), which is cleared after completion of the main combustion. For reasons of piety, the clearance is done manually by means of a dedicated tool. Thus, the ash can be ensured residue-free regardless of the state of wear of the stove.
The combustion takes place on a flat bed (stove plate) and can not be flowed through from below with combustion air. Thats the reason, the combustion takes a little longer compared to the multi stage incinerator.
The compact incinerator combines the advantages of a coffin grate (fast main combustion) with a low height for use in lower buildings.
|Construction||Multi stage incinerator||Flatbed incinerator||Compact incinerator|
Floor-lowered fully automatic coffin insertion system
|Floor-lowered fully automatic coffin insertion system with coffin collecting wavers||Floor-lowered fully automatic coffin insertion system|
||Grate construction||Stove plate||Grate construction|
|Mineralization||Own mineralization chamber (activ heated)||The mineralization of the ash occurs in the mineralization and ash cooling area during the first half of a cremation cycle by active firing with the mineralization burner.||The mineralization of the ash takes place in the mineralization and ash cooling area under passive air supply.|
||Own ash cooling area with passive ventilation||With switching off the mineralization burner, the ash cooling phase starts with passive ventilation.||The ash cooling takes place in the mineralization and ash cooling area under passive air supply.|
|Requirements for the building
||none (depending on type of furnance)||none||none (depending on type of furnance)|
|Evaluation||Multi stage incinerator
||Flat bed incinerator
|Performance at comparable incineration result
||by dint of the coffin support a good flow of the coffin with combustion air is given. By separating into 3 ashing zones, a cycle time of approx. 60 min/EE can be achieved.||Due to the design, the coffin can not be supplied with combustion air from below, so that the main combustion lasts >75 min/EE.||The main combustion corresponds to that of the multi stage incinerator. The combination of mineralization and cooling in one area results in a cycle time of approx. 60-75 min / EE.|
|Incineration result with comparable cycle time||very good, since the residence time of the deceased and their ashes in the furnace is the longest (three cycles through three ashing zones).||The incineration result depends on the operator, in whose discretion it is, when the stove plate should be cleared. Since mineralization and ash cooling occur in one cycle, the cycle time must be extended for a comparable residence time.||Due to the good supply of the under-grate area, a good pre-mineralization already takes place before the residues are removed into the mineralization and ash cooling area.|
|Handling||External rotation of the rotating plates eliminates the need to handle with residues in the oven. As a result, no heated oven area has to be opened during operation except for the feed.||After completion of the main combustion on the stove plate, the residues must be drawn into the mineralization and ash cooling area using a designed instrument.||After completion of the main combustion, the residues from the partial grate area must be drawn into the mineralization and ash cooling area. Compared to the flat bed oven, this area is limited in space, so that this process can be carried out much faster and easier.|
RUPPMANN faces up to these future challenges.
By the use of proven technological components and our extensive experience, we are able to meet the versatile requirements and to offer a customized solution for each individual case.