Method for performing hot frowsty treatment on steel slag by applying steel slag frowsty pot

Abstract

The invention discloses a method for performing a hot frowsty treatment on steel slag by applying a steel slag frowsty pot. The method includes the steps that 1, the slag is filled, a cover is sealed,a slag bag with the solid hot steel slag is placed in a pot body, locked, and sealed; 2, exhaust gas hot frowsty is performed, the hot frowsty is peformed first, that is, water is sprayed to generatea large amount of steam; then voltage stability control is carried out for the first time; then a second hot frowsty is carried out, and the exhaust gas containing the two components of SO2 and CO2 is introduced into the slag bag; and then a secondary voltage stability control is carried out; 3, replacement and decompression are carried out, low-temperature inert gas is introduced into the pot body, and an exhaust port is opened to perform air exchange in the pot body until the concentrations of combustible gas and residual exhaust gas in the pot body are both lower than a set value; then aninert gas introduction device is closed, and exhaust is continued until pressure difference between the inside and outside of the pot body is zero; and 4, the slag is discharged, the water is drained,that is, the end cover is opened, the slag bag is taken out, and draining is carried out. According to the method, the exhaust gas containing SO2 and CO2 is utilized for decomposition, and the decomposition is more thorough.

Description

technical field [0001] The invention relates to the field of steel slag treatment, in particular to a method for hot stuffing treatment of steel slag using a steel slag stuffing pot. Background technique [0002] There are many methods for treating steel slag at present, such as: hot pouring method, hot stuffing method, water quenching method, wind quenching method, drum granulation method and so on. Each has its own advantages and disadvantages: among them, the steel slag treatment efficiency of the hot pouring method is low, and it pollutes the environment; among them, the hot stuffy method and the water quenching method have great safety hazards; among them, the air quenching method consumes a large amount of compressed air and is noisy; Among them, the efficiency of the drum granulation method is average, the energy consumption of the equipment is higher, and the failure rate and investment are larger. [0003] The invention patent with the authorized announcement numbe...

AI Technical Summary

Problems solved by technology

Compared with the traditional hot stuffing method, this method has improved the digestion and crushing effect a lot, but its digestion effect is average and still needs to be improved.

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