In essence, the advantage here is to have this system in stock, ready for operation in the event of an emergency where your current system shuts down, or is damaged beyond repair.
Some important points:
- Not all cremation systems in the UK are supplied with additional abatement technology. This is usually at the discretion of the council.
- Our technology ensures that we produce clean emissions.
- In the case of York council additional abatement technology was not required based on their emergency permit guidelines.
- If abatement is mandatory for you, we can offer abatement retro-fitting at any time after the emergency period has ended and in the event that you would like keep the system permanently.
Plant Operation
The cremator consists of a primary chamber into which the coffin is inserted and within which the primary combustion takes place. The primary chamber is equipped with a single burner and two sets of air jets. Waste gas produced from this phase of the process exits the primary chamber via transfer ports in the chamber sidewall into the secondary combustion zone where harmful gaseous components are eliminated. The flue gases make numerous passes through the secondary combustion zone, where the temperature is maintained at 850°C with a residence time of at least 2 seconds. Temperatures within the primary and secondary chambers are measured by thermocouples which relay data to the PLC control station.
Emission Limits, monitoring and other provisions.
The crematorium is designed for emergency purposes and can operate without an abatement system. It is expected to operate within the emission requirements and methods and frequency of monitoring set out in Table 1.
Pollutant |
Concentration Limits |
Hydrogen chloride |
30 mg/ m3 hourly average |
Total particle matter |
50mg/m3 Hourly average |
Carbon monoxide |
100mg/mg3 |
Organic compounds |
20mg/m3 Averaged over an hour of cremation |
Temperature |
Minimum of 850°C (1123K) in secondary combustion chamber |
Residence time |
Minimum of 2 seconds |
Oxygen |
Measured wet or dry, minimum average 6%and minimum 3% |
Measurements and calculations of the volume rate of the flue gases throughout the cremation cycle: the estimated gas flow is 1.14m3/s. The secondary chamber of the cremator has a volume of 8.38m3, the secondary chamber of the cremator is designed to ensure a gas retention time in excess of 2 seconds.
Mass and energy balance calculations are available on request.
