FIELD: metallurgy.
SUBSTANCE: method involves preliminary dry cleaning of blast-furnace gas in dust collector. Then gas is subject to fine cleaning to 4 mg/m3 in dry filter with ceramic filtering elements at gas pressure on the mouth of 0.25-0.35 MPa and gas temperature of up to 900°C. The obtained gas is cooled in evaporation scrubber to temperature of 60-65°C with saturation with water vapours to 100%. Then gas is passed through gas expansion turbine at temperature of 60-65°C or through reduction-throttle group of dry type at temperature of 55-60°C.
EFFECT: reducing capital costs and operating costs for gas cleaning complex.
1 dwg, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PURIFICATION OF A BLAST-FURNACE GAS AT INCREASED PRESSURE OF THE GAS ON A BLAST FURNACE TOP | 2003 |
|
RU2232821C1 |
| GAS CLEANING OF BLAST FURNACE GAS | 0 |
|
SU945177A1 |
| GAS PRESSURE CONTROL APPARATUS IN MOUTH OF BLAST FURNACE | 2004 |
|
RU2288277C2 |
| METHOD FOR CLEANING BLAST FURNACE GAS | 0 |
|
SU908817A1 |
| SYSTEM FOR PURIFYING AND COOLING BLAST FURNACE GAS | 0 |
|
SU1788020A1 |
| UNIT FOR CLEANING BLAST FURNACE GASES | 0 |
|
SU997757A1 |
| METHOD OF CONTROL OF REMOVAL OF GAS OUT OF BLAST FURNACE AND SYSTEM TO IMPLEMENT IT | 0 |
|
SU1775589A1 |
| BLAST GAS PURIFICATION | 0 |
|
SU722948A1 |
| DEVICE FOR PRESSURE EQUALIZING AND VENTING BLAST FURNACE TOP INTERBELL SPACE | 0 |
|
SU1673601A1 |
| METHOD OF ELECTRIC CLEANING OF BLAST FURNACE GAS | 0 |
|
SU456445A1 |
