Comparison between Clamp buring and Kiln burning
| No. item
|
Clamp-burning
|
Kiln burning
|
| Capacity
|
About 20000-100000
|
avg 25000
|
| Cost of fuel
|
Low as grass, cow dung, litter may be used
|
High because of coal dust is to be used
|
| Initial cost
|
Very low as no structures are to be built
|
More as permanent structures are to be constructed
|
| Quality of bricks
|
The percentage of good qualtiy bricks is small about 60%
|
Percentage of good quality bricks is high 90%
|
| Regulation of fire
|
It is not possible to control or regulate fire during the process of buring.
|
The fire is under control throughout the process of burning
|
| Skilled supervision
|
Not necessary through out the process of burning
|
The continuous skilled supervision is necessary
|
| Structure
|
Temporary structure
|
Permanent structure
|
| Suitability
|
For small scale
|
For large scale
|
| Time of burning and cooling
|
It requires about 2-6 months
|
Actual burning times is 24 hr. and 12 days are required for cooling of bricks.
|
Notes - About comparison is based on use of these kiln with respect to bricks.
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