LU84989A1 - COOLING ARRANGEMENT ON THE FURNACE OVEN - Google Patents

Description

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Possible embodiments of the cooling arrangement according to the invention are shown schematically in the drawings.

It shows 5. ·

1 shows a section of the overall arrangement with coolers and coolers in view,

2 shows the detail of FIG. 1 in side view, 10th

3 shows a cross section through a cooler bag in the vicinity of one of its side walls along the line B-B of FIG. 1,

4 shows a cross section through a cooler bag corresponding to FIG. 3, 15 but with a modified strip,

FIG. 5 shows a development of the wall of a cooler carrying the bar, the section line B'-B 'corresponding to the section line B-B in FIG. 1.

20 9, .. In Fig. 1 and Fig. 2, the overall arrangement of the cooling of a blast furnace in the area of the furnace shell in the rest and in the lower shaft area is shown schematically - "" "" table. While the furnace lining is cooled by the cooling boxes (9), the furnace shell is cooled by water sprinkling. In order to achieve uniform cooling, especially in the area below the cooling boxes, the cooling water flowing down is used by the 'interposed coolers (1) collected and forwarded.

30 In Fig. 3 is a cooler bag connected to the furnace, consisting of the side walls (10) and the wall (2) and an attached elastic% see bar (7). The side walls (10) are connected to the furnace shell (5) and the wall (2) by welding. The wall (2) has a plurality of inwardly directed bulges (6) with a semicircular cross section. As can be seen from the development of the wall (2) in Fig. 5,

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"3" 'the bulges (6) run perpendicular to the longitudinal extension of the wall (2).

v In an expedient embodiment, the bulges (6) have a depth of approximately 12 mm and a distance from one another of approximately 100 mm. In the area of the line of contact (4) of the wall (2) with the furnace shell (5), the wall 5 (2) is welded to the furnace shell. The wall (2) in the area of the recesses (6) is only adapted to the furnace shell (5) so that there is no rigid connection there. This has the effect that different thermal expansions between the furnace shell (5) and the wall (2) are compensated for by the bulges (6) functioning as compensators and uncontrolled distortions in the wall (2) are avoided without the cross-sectional area of the bulges (6). to reduce significantly. The bulges (6) are covered on the outside by the elastic strip (7) lying flat in the remaining area of the wall (2) except for an opening in the lower area of the bulges. The thus formed by the bulge (6) to 15 open at the top and bottom cavity is a suitable guide channel for the controlled cooling water flow. Contamination in the cooling water partially settle on the bottom of the cooler pockets or are flushed out through the openings in the bulges (6) without clogging it. The elastic strip (7) is attached to the wall (2) in a known manner by means of screwed 20 tabs (11). Otherwise, again in a known manner, the attachment of the bar (7) to achieve a mog-5 * is tight against the wall (2) under tension by means of tensioning bolts ayßen ^ on the side walls (10).

25 In Fig. 4, the elastic bar (7) is designed so that it extends to f the furnace shell (5). To ensure the cooling water flow ^ recesses (8) are provided in the lower area of the bar (7).

The arrangement according to the invention enables a controlled cooling water flow which ensures uniform cooling even when different thermal expansions occur between the furnace shell and the cooling pockets. The elastic strip required for water guidance is considerably simplified compared to the previously known shape and is therefore cheaper to manufacture.

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Claims (3)

2. Cooling arrangement according to claim 1, characterized in that the bar (7) extends over the line of contact (4) between the wall carrying it (2) and the tank (5) on the tank (5) er-5 and in on the armor (5) adjacent part with recesses (8) can be seen. 3. Cooling arrangement according to claim 1 or 2, characterized in that the wall (2) at the contact line (4) in the area outside the bulges (6) with the armor (5) 'welded and in the region of the bulges (6) is adapted to the tank (5) closing. 4. Cooling arrangement according to claim 1 or 2 or 3, 15, characterized in that the bulges (6) for the cooling water supply have a semicircular cross section.