AFT
Advance Ash Fusion Tester is used for checking the Fusion Temperature of Coal and Coke Ash. The behaviour of the coal's ash residue at high temperature is a critical factor in selecting coal for boilers and furnaces. The design of most furnaces and boilers takes in to account the characteristics of the ash generated and whether it will remain in solid form or be fluid to some degree. The Ash Fusion Temperature used to analyze coal ash is suitable for the furnace in which it or will become fluid at some temperature.
This test performs the actual Melting / Fusion of the Ash Cone under controlled conditions and checks the corresponding Deformation Temperature of the sample Coal Ash. The instrument complies with the ASTM standard to check the temperatures of four separate transitional states of the Ash Cone between dry and fluid conditions that will occur because of the heating. The Auto Image Recognition feature in the higher versions enables Auto detection of the various deformation temperatures.
| Models | AFT-1 (6401) | AFT-2 (6400) |
| Furnace Temperature Range | 50-1520 deg C | 50-1620 deg C |
| Temperature Controlling Accuracy | 2-5 deg C | 2-5 deg C |
| Resolution | 1 deg C | 1 deg C |
| Sample Quantity | 3 samples in each batch | 5 samples in each batch |
| Standard | ASTM 1857-04 | ASTM 1857-04 |
| Furnace environment | Oxidizing or Weak Reducing | Oxidizing or Weak Reducing |
| Image capture | High Resolution CCD camera with filter | High Resolution CCD camera with filter |
| Image Recognition | Manual | Automatic |
| Cabinet Dimension | 400mm X 550mm X 600mm | 450mm X 600mm X 650mm |
| Weight | 65 Kgs | 70 Kgs |
Note: Due to process of continuous improvements, specifications are subject to change without prior notice