Learn about the comparison or differences between clamp-burning and kiln burning of bricks.
Comparison # Clamp-Burning:
1. Capacity:
About 20000 to 100000 bricks can be prepared at a time.
2. Cost of Fuel:
ADVERTISEMENTS:
Low as grass, cow dung, litter, etc. may be used.
3. Initial Cost:
Very low as no structures are to be built.
4. Quality of Bricks:
ADVERTISEMENTS:
The percentage of good quality bricks is small about 60% or so.
5. Regulation of Fire:
It is not possible to control or regulate fire during the process of burning.
6. Skilled Supervision:
ADVERTISEMENTS:
Not necessary throughout the process of burning.
7. Structure:
Temporary structure.
8. Suitability:
ADVERTISEMENTS:
Suitable when bricks are to be manufactured on a small scale and when the demand of bricks is not continuous.
9. Time of Burning and Cooling:
It requires about 2 to 6 months for burning and cooling of bricks.
10. Wastage of Heat:
ADVERTISEMENTS:
There is considerable wastage of heat from top and sides and hot flue gas is not properly utilized.
Comparison # Kiln-Burning:
1. Capacity:
Average 25000 bricks can be prepared per day.
2. Cost of Fuel:
Generally high as coal dust is to be used.
3. Initial Cost:
More as permanent structures are to be constructed.
4. Quality of Bricks:
The percentage of good quality bricks is more about 90% or so.
5. Regulation of Fire:
The fire is under control throughout the process of burning.
6. Skilled Supervision:
The continuous skilled supervision is necessary.
7. Structure:
Permanent structure.
8. Suitability:
Suitable when bricks are to be manufactured on a large scale and when there is continuous demand of bricks.
9. Time of Burning and Cooling:
Actual time for burning of one chamber is about 24 hours and only about 12 days are required for cooling of bricks.
10. Wastage of Heat:
The hot flue gas is used to dry and pre-heat raw bricks. Hence the wastage of heat is the least.