Incinerators

We design incinerators with one to four incineration lines working independently of each other. The capacities comprise a range of services from 800 tonnes per annum up to 200,000 tonnes per annum. Please submit your enquiries to us. We will provide you with a non-binding indicative tender with a guide price, quickly, easily and free of charge. We will agree on all further steps with you.

You will find information below on a 4-line plant with an annual capacity of 130,000 tonnes per annum to 150,000 tonnes per annum. We will gladly answer any further questions you may have.

Residual Material Recycling Plant / Household Waste

The plant consists of four incineration lines and generates electrical and thermal energy.

The energy to be generated should come from residual waste and domestic waste in neighbouring cities and towns, which is brought to the power plant for thermal recycling. The incinerator charge is acquired via scales.

Generating

electrical energy of 9.0 MW via a steam turbine process.
After the back-pressure steam turbine, the thermal energy is fed into the heating processes such as district heating or industrial heating.

Project Data

Incineration capacity: 130,000 – 150,000 tons per annum depending on the calorific value.
Household waste / mixed waste / commercial waste / residual materials
Calorific values: 11,000 kJ/kg
Thermal firing capacity: 54 MWh/h
Four independent incineration lines: 4 x 4,000 – 4,500 kg/h
Operating hours of plant 8000 – 8500 hrs
Power generation via a back-pressure steam turbine or an ORC turbine
Exhaust air treatment in accordance with German law on the prevention of airborne pollution (17. BimSchV) and EU directives
Auxiliary fuel: natural gas, heating oil, diesel
Automatic charging
Automatic ash removal

General Information

The main specifications for the construction of the furnace systems are ease of use,
robust construction and thus a long service life.

Views

Process Description

Charging the household waste recycling plant

The fuel is filled into the dispensing slots of the furnace with grippers and is dispensed in the furnace with ram feeders.

Incineration

The household waste is incinerated in a stepped combustion chamber. The continuous incineration is ensured by automatic filling and ash removal. The furnace system combines the incineration without rust and the movement of the incinerator charge through the furnace.

The furnace system we are offering is also suitable for very high calorific values.

The dimensions of the combustion chamber and the controlled incineration ensure minimum consumption of primary fuel.

The incinerator charge is moved by electrically driven feed elements from the filling side to the ash removal side.

Combustion air is injected in a controlled manner into the incinerator charge. This upper-air combustion creates an even combustion.

The temperature in the combustion chamber is about 850-1000°C. The temperature is controlled by injecting combustion air and possibly by adding primary fuel.

Primary fuel is necessary only if the incinerator charge has a low calorific value and high moisture content.

The combustion chamber is completely coated in high-quality refractory materials.

The refractory material of the floor has a high level of aluminium oxide and is wear-resistant.

Ash Removal

Ash and slag fall from the last stage into a tank filled with water. The
cooled ash is taken continuously by a conveyor belt from this tank
and is transported to the ash tank.

Afterburning

The flue gas from the combustion chamber cannot contain any burned components.

The afterburning is designed for a flue gas temperature of 850°C and 2 seconds
of retention time.

A burner, an oxygen meter and a temperature measurement behind the afterburning chamber together ensure the destruction of organic pollutants and CO.

Flue Gas Treatment, Exhaust Air Treatment

The exhaust gas treatment is designed individually depending on the fuel used.

7 different treatment processes can be selected, which guarantee unpolluted exhaust air depending on the fuel used in combination.

Dry exhaust air treatment
Wet exhaust air treatment
Catalytic oxidation
Catalytic reduction
Thermal oxidation
Adsorption
Filtration

A flue gas treatment system in accordance with the German law on the prevention of airborne pollution (17. BImSchV) is installed.

For the current project with normal household waste, a dry flue treatment is suitable for the following reasons:

No water consumption
No waste water
No visible steam plumes at the flue

This system consists mainly of an additive dosage, a reactor, a fabric filter and a fan.

A lime-based additive is used as an adsorbent.

Reaction products and flue ash are removed in a fabric filter. A filter cake results from the particle separation and supports the effectiveness of the pollutant separation.

Depending on the differential pressure measured across the filter, the filter cake is treated by compressed air pulses and collected in the filter collecting tank.

A process program controls the removal of used additive in a big bag below the filter and the dosage of new additive in the system. A speed-controlled fan leads the exhaust gas to the flue.

Plant Control System

A programmable plant control system checks and monitors the incineration process.
The most important parameters are displayed on a screen.

Important data such as incineration and afterburning temperatures and oxygen and CO levels are continuously measured and recorded.