Rotary kiln

Images
[Overview]

SPECIAL FEATURES FOR HAZARDOUS WASTE BURNING PLANTS,
THAT ENVIRONMENTAL ENGINEERING AB CAN OFFER.

- True economy with spheroid graphite Iron castings

- Axo-radial kiln sealing allow only strictly controllable amount   of air to flow into the system

- Leak proof and low maintenance residue conveyor is provided   with chains assembled of inexpensive standard components

- Overall tightness of equipment line assures clean working   atmosphere in all parts of the process

Environmental Engineering has chosen the use of SG-iron castings in riding rings, trunnion and thrust rolls, pinions and girth gears.
The graphite nodules in the material give a sufficient lubrication effect on the contact area in case of temporary lubrication failures.
The material also has a greater elasticity, which directly decreases pressure on contact surfaces. Plus, the high strength and hardness properties of SG-cast iron increase structure durability.
For our customers this assures less wear and tear on components. Compared with conventional steel castings, spherical graphite iron castings offer true economical advantages which we pass on to our customers.
The cost of SG-iron castings is considerably lower than that of steel castings, but quality is not compromised at all. This allows us to offer a more economical product. And also completely satisfy the conditions of various processes. Extra savings are achieved due to faster and easier machining.

The heart of the hazardous waste incineration plant is a rotary kiln which is operating at high temperatures (1100°C -1300°C) to achieve an excellent burn out of all kind of hazardous wastes.

The feeding devices for solid waste and barrels are installed in the water-cooled front wall of the rotary kiln.
The flue gases resulting from the incineration of wastes flow into the secondary combustion chamber.
Substances, which have not reacted completely in the rotary kiln, continue their reaction in the secondary combustion chamber. Such unburnt gases and solid particles are mainly formed towards the end of the rotary kiln, since the residence time from there is too short to allow the substances to completely burn out in the kiln.
When the flue gases leave the secondary combustion chamber, they are completely burnt out.