Cremation & Exhaust-Gas Purification
The cremator and the exhaust train are one engineered unit, not two purchases. Treat them separately and the flue gas either fails the limit or the purification plant costs more energy than the cremation does.
01 What it solves
Traditional cremation equipment carries a familiar list of problems: low efficiency, high noise, high energy consumption, uneven furnace temperature, workshop air pollution, installation quality that cannot be guaranteed, and operators whose health is directly affected by the process.
On the emission side the difficulty is dioxin. Dioxins form in a specific temperature window — roughly 300 °C to 760 °C. Allow flue gas to cool slowly through that band and the purification plant downstream is fighting a problem that has already been created.
02 What the solution includes
Intelligent eco cremator
Fourth-generation machine built on five systems plus auxiliary equipment: combustion, running, programme control, self-adjustment and remote control.
One-touch operation
Started, monitored and adjusted from a 15-inch touchscreen in both the front and rear halls, with analogue control of fuel and air circuits.
Remote and predictive control
Remote real-time operation with artificial-intelligence data-analysis algorithms providing automatic warning and fault diagnosis.
Dual-fuel capability
Runs on light diesel from −20 to 0 grade, or on natural gas or liquefied petroleum gas.
Secondary combustion
Flue gas enters a second combustion chamber at 1000 °C or above, breaking down harmful substances further.
Rapid quench
A quench tower drops the gas to below 200 °C within seconds, skipping the 300–760 °C window in which dioxins form.
Multi-stage purification
Semi-dry deacidification, activated-carbon adsorption and bag filtration remove odour, sulphur dioxide, heavy metals and particulate before discharge.
Flexible configuration
One purification train per furnace or one train shared by two furnaces — "one-to-one" or "one-to-two" — with water-cooled or air-cooled heat exchange selectable to local conditions.
03 How it works
The exhaust path is a deliberate sequence, and each stage exists because of what the previous stage leaves behind.
- Secondary combustionFlue gas from the cremator enters the secondary chamber at 1000–1200 °C, where harmful substances are further decomposed.
- Rapid quenchingGas above 1000 °C enters the quench tower and is cooled to about 200 °C by heat exchange, bypassing the dioxin formation window.
- Semi-dry deacidificationSlaked lime and activated carbon are injected and mixed with the gas, neutralising acids and adsorbing pollutants.
- Bag filtrationParticulate and fly ash are captured. Gas entering the filter is held above 180 °C and leaving it above 130 °C, so the bags cannot condense moisture.
- Activated carbon adsorptionA honeycomb carbon bed adsorbs heavy-metal oxides, chlorides and residual dioxins; the drawer-mounted bed is replaced when saturated.
- Induced draught and dischargeA variable-frequency induced-draught fan draws the cleaned gas to a stainless stack and out.
Modular by design
Flame interception, deacidification, bag filtration and carbon adsorption are integrated into a single skid-mounted unit, which is why installation is fast and the plant footprint stays small.
04 Technical basis
Principal technical parameters of the cremator, and the parameters of the purification train. Values are the standard configuration; non-standard requirements change cost and lead time.
- Overall dimensions
- 3600 × 2400 × 3300 mm (±5%)
- Primary chamber volume
- 1.08 m³
- Primary chamber temperature
- 750–950 °C
- Primary chamber pressure
- −5 to −30 Pa
- Secondary chamber volume
- 1.16 m³
- Secondary chamber temperature
- 850–1050 °C
- Secondary combustion air
- 300–400 Nm³/h at 4000–5000 Pa
- Cremation time (hot furnace)
- 30–50 min
- Fuel consumption (hot furnace)
- 6–12 kg per cremation
- Installed power
- 18.5 kW
- Machine weight
- 13 t
- Ash cooling time
- 5–8 min, adjustable
- Service life
- 12,000 cremations
- Control
- 15-inch touchscreens front and rear, Siemens PLC analogue modules, one-touch start, remote operation with AI-based warning and diagnosis
- Heat exchanger (water-cooled)
- 986 × 2972 mm — quench to below 180 °C within 2 s
- Heat exchanger (air-cooled)
- 962 × 876 × 3100 mm
- Purification module
- 4250 × 2300 × 5260 mm
- Heat-transfer area
- > 120 m²
- Cooling fan power
- 3 kW
- Bag filter area
- 98 m², filtration velocity 0.8–1.1 m/min
- Stack
- Stainless steel, ≥ 400 mm diameter, ≥ 12 m high, sampling port at 4 m
- Flame interception rate
- 99%
| Standard | Subject |
|---|---|
| GB 13801-2015 | Emission limits for atmospheric pollutants from fuel-fired cremators — the discharge standard the system is built to exceed |
| GB 16297-1996 | Integrated emission standard for atmospheric pollutants |
| JB/T 10192-2000 | Technical conditions for small incinerators |
| GB 50016-2019 | Fire protection design for buildings |
05 Incinerators and memorial furnaces
The same purification logic is applied to the other combustion points on a funeral-home site.
Wreath incinerator
A large-mouth incinerator designed specifically for wreaths. It uses the inherent flammability of the material rather than forced oil-fired burning, and a large charging opening so wreaths do not have to be dismantled by hand before loading.
Multi-stage burn and water scrubbing
Gas is burned repeatedly at high temperature for smoke elimination, sterilisation and deodorisation, then water-scrubbed for further dust removal.
Zodiac memorial furnace
A memorial incineration furnace for paper offerings, with card activation, automatic door, image display of the deceased, music playback and life-story narration, plus USB input.
Sealed negative-pressure ash handling
Ash is conveyed through a sealed negative-pressure duct to a central collection room and solidified — a system that outperforms belt conveyors on cleanliness.
PLC control
The memorial furnace's electrical control system uses a PLC digital programmable controller, giving reliable automatic ash collection, smoke elimination and cleaning.
Emission compliance
Purified exhaust from the memorial furnace meets the national emission limits in GB 13801-2015.
06 Where it applies
Cremation is the core of the scope, with the surrounding combustion and treatment points included because they share the exhaust strategy.
07 Selected references
References drawn from the company's delivered portfolio and the 2024 expert evaluation.
09 Questions buyers ask
Which configuration — one-to-one or one-to-two?
It depends on the number of furnaces, how they will be operated and the space available. One purification train shared by two furnaces reduces capital cost and footprint; one train per furnace keeps each furnace independently operable. This is decided during design.
Water-cooled or air-cooled heat exchange?
It depends on local conditions and water availability. Both are offered and the choice is made at design stage against the site.
How long does the activated carbon last?
The honeycomb carbon bed is replaced when saturated, typically at around 5000 cremations. It is drawer-mounted so replacement does not require dismantling the unit.
What happens to the collected fly ash and spent carbon?
They are solidified in moulds together with the collected dust and sent to landfill, which is the handling route specified for these waste streams.
Do you supply non-standard cremators?
Yes, but non-standard products increase cost and extend the delivery date, which is why the recommendation is always to start from standard models and configurations.
Where to go next
Scope this solution for your project.
Send the site, the zones and the stage you are at. We reply with what we would deliver, which interfaces we would own and the standards we would build to.
