A kind of method for hot stuffy treatment of steel slag by using steel slag stuffing pot

Abstract

The invention discloses a method for hot stuffy treatment of steel slag using a steel slag stuffy pot, which includes step 1: loading the slag and sealing the cover, placing the slag bag containing solid hot steel slag into the pot body, and locking and sealing; step 2, Exhaust gas hot stuffiness, firstly perform the first hot stuffiness, that is, spray water to generate a large amount of water vapor; then carry out the initial pressure stabilization control; then carry out the second hot stuffiness, introduce the exhaust gas containing SO2 and CO2 into the slag bag; Then carry out secondary voltage stabilization control; Step 3, replace and release pressure, introduce low-temperature inert gas into the pot body, and open the exhaust port to replace the air in the pot body until the concentration of combustible gas and residual exhaust gas in the pot body is lower than Set the value; then close the inert gas introduction device, and continue to exhaust until the pressure difference between the inside and outside of the pot is zero; Step 4, slag discharge, that is, open the end cover, take out the slag bag, and drain. The invention utilizes waste gas containing two components of SO2 and CO2 for digestion, and the digestion 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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