Zinc slag recycling and regenerating system for hot galvanizing

Abstract

The invention discloses a zinc slag recycling and regenerating system for hot galvanizing. The zinc slag recycling and regenerating system for hot galvanizing comprises a zinc slag adding device, an aluminum agent adding device, a protection medium adding device, a temperature control smelting furnace device, a liquid-slag separating device, a molten zinc ingot casting device, a dissolving tank and an electrolytic cell. The zinc slag recycling and regenerating system is characterized in that the zinc slag adding device is connected with the temperature control smelting furnace device, the position above the temperature control smelting furnace device is connected with the aluminum agent adding device and the protection medium adding device, and the liquid-slag separating device is arranged at the bottom of the temperature control smelting furnace device and connected with the molten zinc ingot casting device and the dissolving tank; and the dissolving tank is connected with the electrolytic cell through a pipeline and connected with a washing drying device, and a discharging port of the washing drying device is connected with a feeding port of the temperature control smelting furnace device. According to the zinc slag recycling and regenerating system, raw material and energy consumption can be reduced to a large degree, investment is reduced, and meanwhile by-products in the recycling process can be cyclically utilized. The zinc slag recycling and regenerating system has the beneficial effects that the recycling cost is low, the technology is simple, waste water discharging is avoided, and new pollution is not generated.

Description

technical field [0001] The invention relates to a recovery and regeneration system for hot-dip galvanized zinc slag. Background technique [0002] As an excellent protective coating for ferrous metals, galvanizing is widely used, accounting for almost 60%-70% of all types of plating in electromechanical, construction, hardware and other industries. The use of passivation film of various colors not only increases the decorative effect, but also improves the corrosion resistance. But along with the continuous development and popularization of people to galvanizing process, produced a large amount of harmful substances to the environment and human body. [0003] The impact of industrial waste on environmental quality is becoming more and more serious, especially heavy metal pollution. Heavy metals entering the soil not only affect soil fertility and the quality of agricultural products, but also accumulate in animals and plants through water, air, crops and other transmission...

AI Technical Summary

Problems solved by technology

Some of the heavy metal highly toxic substances have the functions of carcinogenicity, teratogenicity and induction of gene mutation, thus bringing health risks to human beings

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