- Country of manufactureIndia
- Raw material for bricksClay
Our Bricks Burning Process In a tunnel kiln dry bricks are loaded onto a fireproof trolley or kiln car. This then travels very slowly
through the kiln. Typical schedule through the kiln from end to end is 3-4 days but variations occur
depending on production schedules.
Although our kilns are generally more expensive to build than chamber kilns they are more economical
to run and lend themselves to high degrees of automatic control. It is essential that our kilns are run on
a continuous basis for ideally several years at a time between shutdowns.
Different firing schedules are necessary for different clay types. This is not just a matter of peak
temperature. To maximise production it is clearly necessary to arrange for long production runs and as few
changes as possible in order to achieve best results.
1. Pre heating - this ensures total dryness of the brick and utilises combustion gasses in the
kiln to raise the brick temperature.
2. Firing - A fuel, usually natural Wood and Coal is used to raise and maintain the
temperature to the required level over a few hours.
3. Cooling - Cold air is drawn into the kiln to cool the bricks slowly ready for sorting and
packing. This air becomes hot and can be drawn off and recycled for use in the drying process.