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Green Cremation & Environment

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.

4th & 5thGeneration
GB 13801-2015Emission basis
Oil & gas dualFuel

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.

  1. Secondary combustionFlue gas from the cremator enters the secondary chamber at 1000–1200 °C, where harmful substances are further decomposed.
  2. Rapid quenchingGas above 1000 °C enters the quench tower and is cooled to about 200 °C by heat exchange, bypassing the dioxin formation window.
  3. Semi-dry deacidificationSlaked lime and activated carbon are injected and mixed with the gas, neutralising acids and adsorbing pollutants.
  4. 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.
  5. Activated carbon adsorptionA honeycomb carbon bed adsorbs heavy-metal oxides, chlorides and residual dioxins; the drawer-mounted bed is replaced when saturated.
  6. 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%
StandardSubject
GB 13801-2015Emission limits for atmospheric pollutants from fuel-fired cremators — the discharge standard the system is built to exceed
GB 16297-1996Integrated emission standard for atmospheric pollutants
JB/T 10192-2000Technical conditions for small incinerators
GB 50016-2019Fire 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.

Cremation hallsFlue-gas treatment plantWreath and offering incinerationMemorial furnacesAsh handlingHeat recovery

07 Selected references

Weng'an Taipingshan Funeral HomeGuizhou Province — exhaust-gas equipment
Zhangshu Funeral HomeJiangxi Province — exhaust-gas equipment
Equipment verified4th-generation eco cremator and exhaust-gas purification system
National evaluationThe company's modern post-life industry intelligent operation system and application was reviewed by an expert panel in 2024 and judged to reach leading domestic level, with cremation and refrigeration technology assessed as internationally advanced

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.