SU1235902A1 - Horizonatl cooler of blast-furnace bottom - Google Patents

Description

: cross section; on

The invention relates to ferrous metallurgy, in particular to the domain of manufacture, and can be used to cool the blast furnace bed.

The aim of the invention is to increase the durability of the bottom lining.

Figure 1 shows the horizontal refrigerator, a longitudinal section; FIG. 2 is the same; FIG. 3 is the same section.

The horizontal refrigerator consists of the upper 1 and lower 2 parts section with the longitudinal openings of the 3 cooling pipes 4 and the filling channels 5 and 6 - the bottom. In addition, the horizontal refrigerator consists of blocks of 7,

When mounting the base on the metal bottom 6 or on the leveling refractory layer, the lower part 2 of the section is laid, after that cooling pipes 4 are installed into the forming longitudinal holes 3 and the upper part of the section is mounted. After the cooling sections are installed, carbon paste is fed through the filling channels 5, filling the free space between the sections and the longitudinal holes 3. The carbon-containing blocks of the 7 refractory lining are installed directly onto the cooler.

During operation, cooling pipes 4 are supplied: air or water, and through the metal sections cools the carbon-containing refractory lining blocks 7. As the lining is in full swing, the temperature of the upper part 1 of the section increases and the latter moves along the pipes without destroying them. Since in the proposed construction

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the furnace load with materials is evenly transferred through the horizontal cooler to the foundation, and the pipes in the sections are installed with a gap, the latter do not experience additional stresses from the thermal expansion of the section. This contributes to the gas-tightness of the cooling system and increases the resistance

linings by eliminating the oxidation of its carbon by flowing kiln gases

In addition, the gap between the sections of the sections and the cooling pipes during the design of the refrigerator is selected depending on the thermal resistance of the bottom lining and thermal loads on the podschenny cooling system.

When operating a podscient cooling system, it is usually a significant difficulty to seal the bottom of the floor in the event of a violation of its gas tightness. The injection of the sealing solution is performed only through the fittings located in the housing, i.e. only in the peripheral part of the bottom. When using the proposed design, the injection of the sealing solution can be carried out on the entire podschechnaya bblast. For this you can use part of the longitudinal

pipe-free openings for cooling.

The through channel may be cylindrical or conical in shape.

Thus, the invention provides an increased gas-tightness of the cooling system and provides for an improved durability of the refractory lining, i.e. the duration of the furnace.

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Compiled by V. Terenin Editor E. Belska Tehred M. Khodanich Proofreader I. Erdeyi.

Order 5061/23 Circulation 552. Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

HORIZONTAL DOMAIN HELD REFRIGERATOR, containing a metal plate with channels for cooling pipes, characterized in that, in order to increase the stability of the lining of the bottom, the refrigerator plate is made in the form of two parallel sections, with a through hole in the upper section and a gap between the sections and cooling tubes filled with carbon mass. SU,. „1235902