SU1587064A1 - Blast furnace cooler - Google Patents

Abstract

This invention relates to ferrous metallurgy, in particular to blast furnace designs. The goal is to increase the durability of the refrigerator by reducing the surface of direct contact of the cast-iron plate with the working space of the blast furnace and improving the conditions for fixing the refractory bricks on the working surface of the refrigerator. The blast furnace refrigerator contains a cast iron plate 1, cooling tubes 2 poured into metal and fins 3 on a working surface with refractory bricks 4 between adjacent fins. The ribs 3 are made in the form of triangular horizontal prisms with the bottom 5 and top 6 facets. The lower faces 5 are inclined in the horizontal plane at an angle of 7, which exceeds the angle of inclination to the horizontal plane of the upper edges 6, which is recommended to be larger than the angle of inclination to the vertical plane of the wall of the casing of the blast furnace. Between the faces 5 and 6 of adjacent edges 3, smooth rounding is performed, the radius of which is 0.1-0.3 distances 11 between the vertices of the 12 edges directed toward the working space of the blast furnace. Faces of each refractory brick 4 facing the working space of the blast furnace can be made adjacent to the upper planes of the upper triangular edge of the refrigerator plate. The faces 13 of each refractory brick facing the working space of the blast furnace can be made flush with the faces above and below the located bricks. 3 hp f-ly, 2 ill.

Description

This invention relates to ferrous metallurgy, in particular to blast furnace designs.

The aim of the invention is to improve the resistance of the refrigerator by reducing the surface of the direct contact of the cast-iron plate with the working space of the blast furnace and improving the conditions for fixing the orrie-resistant bricks on the working surface of the refrigerator.

Fig. 1 shows the scheme of a blast furnace refrigeration unit, vertical section-; in fig. 2 - the same when smooth rounded out is made between the oebras with a radius of 0.1-0.3 distances between the tops of the edges, and the face of each refractory brick is made flush with the faces above and below located refractory bricks.

The blast furnace cooler contains a cast iron plate 1, which is poured into the metal by an okhkuzhayushche tube 2 and ribs 3. on the working surface with refractory bricks 4 between adjacent ribs. The ribs 3 are made in the form of triangular horizontal prisms with the bottom 5 and top 6 facets. The lower faces 5 are inclined to the horizontal plane at an angle of 7, which exceeds the angle of inclination 8 to the horizontal plane of the upper edges 6, which are taken to be greater than the angle of inclination 9 to the vertical plane of the wall of the blast furnace casing. Between the faces 5 and 6 of the adjacent fins 3, a smooth rounding 10 is performed, the radius of which is 0.1-0.3 dawn 11 between the tops of the 12 edges directed towards the working space of the blast furnace. The faces of each refractory kir- pich 4 MO-gut facing the working space of the blast furnace can be made adjacent to the upper planes of the upper triangular edge of the refrigerator plate (Fig. 1).

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The faces 13 of each refractory brick facing the working space of the blast furnace can be flush with the faces above and below the bricks (Fig. 2).

The refrigerator works as follows. "

The cooling fluid, the passage through the j-cut tube 2, takes away heat from the cast-iron plate 1, which is heated from the side of the working space of the blast furnace. The heating-cast iron plate and its concomitant temperature deformations, as well as the possible burnout of the metal of the refrigerator when the lining is destroyed, the smaller, the smaller the surface of direct contact of the internal sections of the metal of the plate with the internal space of the blast furnace.

Claims (4)

1. A blast furnace refrigerator containing a cast iron stove, cooling tubes poured into metal and fins on a working surface with a smooth rounding over a cylindrical surface and refractory bricks between adjacent fins, differing from the fact that, in order to reduce the durability of the refrigerator -. the surfaces of direct contact of the cast-iron plate with the working space of the blast furnace and the improvement of fixing conditions for refractory bricks on the working surface of the refrigerator, the ribs are made in the form of triangular horizontal prisms, the lower faces of which are inclined to the horizontal plane at an angle exceeding the angle of inclination to the horizontal plane of the upper grains, and the bricks made wedge-shaped, the upper and lower faces of which are parallel to the corresponding DtHM edges of the fins of the refrigerator. 2. The refrigerator according to claim 1, in accordance with claim 1, so that the radius of smooth rounding on the cylindrical surface between adjacent edges is 0.1-0.3 the distance between the tip edges towards the blast furnace working space. 3. Refrigerator on PP. 1 and 2, T is characterized by the fact that the side of each refractory brick facing the working space of the blast furnace is made adjacent to the upper plane of the upper triangular edge of the refrigerator plate 4. Refrigerator popp. 1-3, characterized in that the face of each refractory brick facing the working space of the blast furnace is flush with the faces above and below the refractory bricks arranged parallel to the outer surface of the cast iron plate of the refrigerator,