ASSESSMENT OF THE COAL RESOURCES OF THE KYRGYZ REPUBLIC:
COAL CHARACTER AND DISTRIBUTION, GEOLOGY, MINING, AND IMPORTANCE TO THE NATION'S FUTURE
USGS Open File Report 97-137A (English)
TABLE a-7 - COMPARISON OF RESULTS FOR BRICK KILNS (Untreated Coal vs. Coal Briquettes)
| ITEM | KILN NO. 1 Untreated Coal Firing |
KILN NO. 2 Coal Briquette Firing |
| 1 | Feeding of coal required every 15 minutes | Feeding of coal briquettes required every 40 minutes. |
| 2 | Temperature fluctuated between 900oC and 1100oC | Temperature remained constant at 1000oC |
| 3 | Larger number of brick rejects due to uneven temperatures. | Very small number of rejects due to more even temperatures. |
| 4 | Very large emission of dust, grit and smoke and fumes of sulfur dioxide. Workers had to cover their faces with thick cloth in order to protect themselves | Emissions of dust, grit, smoke, and sulfur fumes was extremely low and workers could work comfortably without covering their faces. |
| 5 | Causes heavy environmental pollution. | Pollution caused is low and acceptable under the circumstances. |
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