The cone-less top charging system is designed for receiving materials, their charging into blast furnace and distribution in the furnace top section in certain operating modes: circular, sector, spiral, to the point and combined (circular and spiral).
The main units of the bell-less top charging device are:
- hauled receiving hopper
- upper gas seal valves
- sealing
- hoppers
- basic probe
- charge gate unit
- lower valve unit
- funnel assembled
- compensator with catch
- drive
- chute distributor
| Furnace volume, m3 | 1033..1386 | 1386..1709 | 2000..2300 | 3000 |
| Funnel volume, m3 | 10 | 12 | 14 | 17 |
| Hopper volume, m3 | 16 | 24 | 28 | 34 |
| H, mm | 16735 | 17905 | 18435 | 19655 |
| Mass, ton | 270 | 370 | 400 | 480 |
| Gas pressure on the furnace top, MPa | 0,25 |
| Gas temperature on the furnace top, ºС | 350 |
| Agglomerate temperature, ºС | 700 |
| Chute tilt, deg | 11...53 |
| Chute tilt speed, deg.sec | 1,28 |
| Chute rotation speed, deg/sec | 0,35; 1,34 |
| Cooling of distributor bearings,blowing of gas seal valve seats | nitrogen |
| Cooling of distributor units | By water |
| Distributor drive | Electro- mechanical. |
| Drives: | |
| Receiving funnel gates | hydraulic |
| Gas seal valves of the charge gates | hydraulic |
| Lubrication | grease |
