RU1792431C - Device for cooling blast-furnace jacket by service water - Google Patents

Abstract

SUMMARY OF THE INVENTION: in a cooling device for cooling a blast furnace casing with industrial water, the pipes are connected into groups of at least one, while the groups of adjacent rows are displaced horizontally relative to each other by at least one pipe. 1 il ..

Description

The invention relates to ferrous metal aegia and can be used in systems

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x water cooling of blast furnaces. A device for cooling a leather-blast furnace is known, comprising pipes of cooled elements arranged in horizontal rows on the inner / upside of the furnace casing, having individual inlets and outlets of water for each

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pipes. The device is characterized in that, in order to save water consumption, the cooling pipes of several refrigerating plates (cooling elements) are connected in series with each other, each of which has an individual supply to and from industrial water.

The disadvantages of such a device are as follows: when one of the cooling pipes burns out (ruptures) and no emergency measures are taken to disconnect them (which takes place for technological and operational reasons), the rest of the cooling pipes combined into one group also collapse . As a result, part of the casing of the blast furnace remains without cooling equivalent to the area of cooled ™ cops. In existing blast furnaces, especially in a mine, numerous uncooled spots are scattered over the entire surface. This circumstance leads to uneven heating of the casing, overheating of its individual sections, which reduces the service life of the casing and, accordingly, the blast furnace and serves as the basis for major repairs.

An object of the invention is to increase the durability of a casing of a blast furnace.

The goal is achieved by the fact that in the device. Cooling the casing of the blast furnace with industrial water, the pipes are connected in groups of at least one, while the groups of adjacent rows are displaced horizontally relative to each other by at least one pipe.

The use of the invention allows, at the same flow rate of process water, to organize the cooling of the casing of the blast furnace in such a way that in case of destruction of any cooling pipe and, together with it, the corresponding group of pipes, this does not significantly affect the resistance of the casing.

Indeed, if, in each cooling element, for example, th (Л

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If there are two pipes connected to each other through at least one pipe, the failure of two pipes will not entail the destruction of the entire cooled element.

When forming groups that will include pipes located, for example, through two pipes, failure of any group will entail the shutdown of only one pipe in each of several rows of located cooled elements. Disconnecting one pipe in each cooling element will have little effect on changes in the temperature regime of operation of the furnace casing. Displacement of groups in adjacent horizontal rows of cooled elements relative to each other horizontally by at least one chilled pipe will allow to keep the cooling of a section of the furnace casing exposed to intense heat when changes or violations of technological conditions, even when a significant number of groups of ne this site.

Thus, the fulfillment of the considered features when using the claimed invention will make it possible to maintain the temperature mode of operation of the casing of the blast furnace at a sufficient level even when a significant number of pipes of cooled elements fail, which will significantly increase the resistance of the casing of the furnace.

The drawing schematically shows a cooling system for a mine section of a blast furnace in accordance with the invention.

As an example, the connection of the cooling pipes of the elements into groups through one pipe and the displacement of the groups in adjacent horizontal rows by one cooled pipe in the presence of four pipes in each cooled element is shown.

The cooled elements 1 and 2 are located respectively in the horizontal rows I and II. Each element has chilled pipes 3-6 (row I) and pipes 7-10 (II row). When connecting the corresponding pipes 3 and 5 with jumpers 11, groups 12 (I r d) are formed, when connecting the pipes 4 and b, groups 13 (I r d) are formed. In the second row, groups 14 are formed when pipes 7 and 9 are connected, and groups 15 are formed when

connecting pipes 8 and 10, Groups 12-15 have individual inlets 16 and outlets 17 for industrial water. Groups 12 and 13 of the first row are offset relative to the corresponding groups 14 and 15 of the second row by 1 pipe.

Figure 1 also shows the shut-off valve 18 and the manifold 19.

The presented example does not exhaust all embodiments of this device.

The work of grouping the device for cooling the casing of the blast furnace with industrial water is carried out on the basis of the following initial data: design of the cooled elements; the number of chilled pipes in each element; the number of horizontal rows in the blast furnace; technological parameters of the blast furnace; features of the water supply system. ,

The proposed device has the following advantages: ensures the operability of the cooling system in the event of a gradual or emergency failure of a significant number of pipes

cooled elements: increases the durability of the casing of the blast furnace.

Claims (1)

The device for cooling the casing of a blast furnace with industrial water, including cooled elements located on the inside of the casing in horizontal rows, the pipes of which are connected in series to each other in groups having individual inlets and outlets of water, characterized in that. in order to increase the resistance of the casing of the blast furnace, the pipes are connected in n groups at least through one, while the groups of adjacent rows are displaced horizontally from one another relative to at least one pipe. Redg ctor Z. Kholakova Compiled by B. Granovsky Tehred M. Morgenthal Corrector S. Patrusheva Zakg s 170 Circulation NIIPI of the State Committee for Inventions and Discoveries under the USSR SCST, 113035. Moscow, Zh-35, Raushska nab., 4/5 Subscription