FIELD: process engineering.
SUBSTANCE: in compliance with this method, mineral stick is smelt in cupola. Said cupola has pit 11 to accommodate said stock. Bottom of said pit is equipped with fire grate 7 where under combustor 2 is arranged. Said combustor is heated by one or several burners 6. Note here that said burners 6 are fed with gas or fluid fuel and oxygen-bearing gas. In compliance with this invention, burners are operated so that flame length in fuel combustion with oxygen-bearing gas makes 60-100%, preferably 65-95% of combustor length. Projections of burner central axes and combustor diameter extending via burner central bore makes the angle of 3-20 degrees at horizontal plane.
EFFECT: uniform heating of cupola, decreased emission of nitrogen oxide.
18 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CUPOLA FURNACE AND METHOD OF OBTAINING MOLTEN SILICA | 2009 |
|
RU2482077C2 |
| METHOD FOR PRODUCTION OF MINERAL INSULATION | 2022 |
|
RU2788662C1 |
| COKE-GAS BLAST CUPOLA | 1997 |
|
RU2109236C1 |
| FUEL-OXYGEN BURNER FOR MELTING FURNACE, SYSTEM AND METHOD FOR CONTROLLING THE IGNITION AND FLAME CONTROL OF SUCH BURNER | 2021 |
|
RU2755239C1 |
| IGNITION AND OPERATION METHOD OF BURNERS AT GASIFICATION OF CARBON-CONTAINING FUEL TYPES | 2009 |
|
RU2533275C2 |
| COKE-GAS CUPOLA FURNACE | 2003 |
|
RU2241929C1 |
| GAS AND ELECTRIC CUPOLA FURNACE (GECF) FOR THE NONMETALLIC MATERIALS MELTING | 2017 |
|
RU2652044C1 |
| GLASS-MELTING FURNACE AND METHOD OF MELTING GLASS | 2008 |
|
RU2422386C1 |
| METHOD OF MANUFACTURING HEAT-INSULATING MINERAL WOOL PRODUCTS | 2014 |
|
RU2566164C1 |
| METHOD AND APPARATUS FOR MANUFACTURING MINERAL FILAMENTS | 2002 |
|
RU2266872C2 |
