FIELD: metallurgy. SUBSTANCE: device to blow heated up air in pit furnace is formed of several tubular members equipped with firebrick lining. The members are connected to each other with spherical hinged joint and a compensator. The spherical hinged joint is generated by convex spherical pivot formed in a segment, and by concave base formed in the firebrick of adjacent segment. They have a safety housing of heat-resistant steel around convex part to the base of spherical pivot. Radius of curvature of each spherical member is about half a diameter of the tubular members. EFFECT: high efficiency of the pit furnace. 13 cl, 26 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| APPARATUS FOR CHARGING SHAFT FURNACE | 1992 |
|
RU2078831C1 |
| TUYERE DEVICE FOR SUPPLYING BLAST GAS INTO BLAST FURNACE | 1991 |
|
RU2039838C1 |
| TUYERE APPARATUS OF BLAST FURNACE | 0 |
|
SU1748651A3 |
| DEVICE FOR MOUNTING OR DISMANTLING TUYERES OR TYMPS OF SHAFT FURNACES | 1991 |
|
RU2041958C1 |
| METHOD AND APPARATUS FOR INSERTING PINCH BAR TO TAP OF SHAFT FURNACE | 1993 |
|
RU2094468C1 |
| 0 |
|
SU537633A3 | |
| CHARGING ARRANGEMENT FOR SHAFT FURNACE | 0 |
|
SU1493113A3 |
| APPARATUS FOR TAPPING WALL OF SHAFT FURNACE | 1993 |
|
RU2094469C1 |
| SHAFT FURNACE CHARGING ARRANGEMENT | 0 |
|
SU1134121A3 |
| APPARATUS TO AUTOMATIC BLOWING NOZZLE WITH SYSTEM FOR FEEDING LIQUID AND GASEOUS MATERIALS | 1991 |
|
RU2061759C1 |
