VFF SERIES
The VFF-series, vertical four pass F.B.C fired thermic fluid/thermal oil heater is designed for maximum efficiency, using a variety of free flow fuels including agro-waste fuels and pulverized coal. It allows high process temperatures at low operating pressures. The combustion system for free flow fuels consists of fuel feeding threw screw feeder handling and stoking equipment, in refractory lined chamber, air and flue gas handling system (including I.D. fan and F.D. fan) with blowers and pollution control equipment. The furnace construction is done on site (only for bricks works). It includes foundation, fabrication and erection of supporting structure, building up refractory chambers, fixing up firing doors, ash doors, access doors, air plenum chamber and air nozzle.
Operating Range
- Capacity – 0.4 to 10.0 million kcal/hr
- Fuel- pulverized coal, rice husk, sawdust, petcock
- Temperature - 300℃
| Specification | Unit | VFF-400 | VFF-600 | VFF-800 | VFF-1000 | VFF-1500 | VFF-2000 | VFF-2500 | VFF-3000 | VFF-4000 |
|---|---|---|---|---|---|---|---|---|---|---|
| General | ||||||||||
| Maximum heat output | M. Kcal/hr | 0.4 | 0.6 | 0.8 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 |
| Maximum working temperature | °C | 280 | 280 | 280 | 280 | 280 | 280 | 280 | 280 | 280 |
| Thermic fluid heater Rise temperature | °C | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Hot Oil Inlet/Outlet | MM | 80 | 80 | 100 | 100 | 120 | 150 | 150 | 200 | 200 |
| Heating surface area of heater | M² | 40 | 60 | 80 | 100 | 150 | 200 | 250 | 300 | 400 |
| Oil holding capacity of heater | liter | 475 | 570 | 1015 | 1250 | 2350 | 3150 | 3780 | 4500 | 6220 |
| Firing Mode | Automatic throw Screw feeder | |||||||||
| Type of Fuel | Fuel | Crushed Briquette, Rice husk, Coal, | ||||||||
| Boiler Efficiency | ||||||||||
| On Crushed Briquette | % | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 |
| On Rice Husk | % | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 |
| On Coal | % | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 | 78 +/-2 |
| Fuel Consumption | ||||||||||
| Crushed Briquette (4000) | Kg/hr | 128 | 192 | 256 | 321 | 481 | 641 | 801 | 962 | 1282 |
| Rice Husk (3000) | Kg/hr | 171 | 256 | 342 | 427 | 641 | 855 | 1068 | 1282 | 1709 |
| Coal (4500) | Kg/hr | 114 | 171 | 228 | 285 | 427 | 570 | 712 | 855 | 1140 |
| Electrical Load | ||||||||||
| Circulation Oil Pump | H.P. | 10.00 | 15.00 | 20.00 | 25.00 | 30.00 | 40.00 | 50.00 | 60.00 | 75.00 |
| ID fan without BF | H.P. | 5.00 | 7.50 | 10.00 | 10.00 | 15.00 | 20.00 | 25.00 | 30.00 | 40.00 |
| FD fan with APH | H.P. | 5.00 | 7.50 | 10.00 | 10.00 | 15.00 | 20.00 | 25.00 | 30.00 | 40.00 |
| SFD fan with Motor | H.P. | 1.00 | 1.00 | 1.00 | 2.00 | 2.00 | 2.00 | 3.00 | 3.00 | 4.00 |
| Screw feeder | H.P. | 1.00 | 2.00 | 1.00 | 2.00 | 2.00 | 2.00 | 3.00 | 3.00 | 4.00 |
| Total Electric Load | H.P. | 22.00 | 33.00 | 42.00 | 49.00 | 64.00 | 84.00 | 106.00 | 126.00 | 163.00 |
| NOTE: In view of constant endeavors to improve our products, we reserve the right to alter or change above specifications without prior notice. | ||||||||||
- GCV of crushed briquette is 4000 Kcal/KG.
- GCV of rice husk is 3000 Kcal/KG.
- GCV of coal is 4500 Kcal/KG.