A kind of slag bag cooling method

Abstract

The invention discloses a slag ladle, which comprises a slag ladle body, a heat exchange pipe arranged on the slag ladle body, and a fan for ventilating the heat exchange pipe. The slag bag provided by the invention can realize slow cooling of the slag bag. At the same time, it can also improve the cooling efficiency and reduce the slow cooling time. It can well control the cooling speed of the slag bag, prevent the occurrence of rapid cooling, thereby improving the recovery rate of copper, and at the same time recover the sensible heat of the high-temperature slag through the cooling medium, and the water in the heat exchange pipe can be reused. It will be wasted, and there will be no possibility of "blasting" high-temperature slag during operation. The heat exchange pipe can bring the heat from the high-temperature place in the slag bag to the low-temperature place, so that the heat dissipation of the whole slag bag is even and gentle, and can adjust the temperature of the slag bag itself, so that the temperature of the slag bag itself tends to be uniform, and there will be no Rapid cooling reduces the damage to the slag bag during the cooling process and prolongs the service life of the slag bag.

Description

technical field [0001] The invention relates to the technical field of slag ladle cooling, in particular to a slag ladle and a slag ladle cooling method. Background technique [0002] With the sharp increase in the demand for copper for industrial production, the supply of copper resources in my country is becoming increasingly tight, and the copper metallurgy industry is paying more and more attention to the dilution treatment of copper smelting slag. In order to further reduce the copper grade of waste slag, in the past 10 years, the number of domestic enterprises using the mill-float method to discharge copper smelting slag has been increasing year by year. [0003] During the use of the slag bag, when the slag is put into the bag, it is heated to above 700°C instantly, and when it is sprayed and cooled, it is quenched with water, and the slag bag is seriously damaged. Not more than 3 years. [0004] The currently used slag ladle cooling method is to directly discharge ...

AI Technical Summary

Problems solved by technology

[0005] At the same time, the operating environment of the cooling site is very harsh. When water encounters high-temperature melt, it vaporizes rapidly. A large amount of water mist on site affects the line of sight. The slow cooling of each ton of slag consumes about 0.5 tons of water.

This not only wastes the sensible heat of slag and consumes a lot of water conservancy resources, but also has the possibility of high-temperature slag "blasting (the water encounters high-temperature slag and quickly vaporizes, releasing a large amount of energy instantly)", which seriously threatens the safety of people and equipment.

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