Slag waste heat recovery system

Abstract

The invention discloses a slag waste heat recycling system. The system sequentially comprises a slag mixing device, a main transferring device, a material collection hopper, a cooling device and a cold slag collecting device from left to right. The material collection hopper is provided with a breaking device, and a material pushing device is arranged on the cooling device; a feeding end is arranged at the left end of the material pushing device, and a discharging end is arranged at the right end of the material pushing device; meanwhile, the cooling device is located inside an insulation chamber, and at least two waste heat recycling openings are arranged on the top of the insulation chamber in sequence from left to right; the left portion of the main transferring device is matched with the slag mixing device, and the material collection hopper is located below the right end of the main transferring device; and the material collection hopper is located above the feeding end, and the cold slag collecting device is located below the discharging end. The slag waste heat recycling system has the beneficial effects that high-temperature slag can be treated relatively thoroughly, and the waste heat recycling efficiency is higher; and the invention further discloses a slag waste heat recycling method.

Description

technical field [0001] The invention relates to the technical field of iron and steel smelting, in particular to a slag waste heat recovery system. The invention also relates to a method for recovering waste heat from slag. Background technique [0002] Steel is the structural material with the largest consumption and the functional material with the highest output. With the rapid growth of steel production, resources, energy and environmental pollution have become the limiting factors restricting the sustainable development of my country's steel industry. Among them, a large amount of high-temperature slag is produced in blast furnace, converter, and electric furnace smelting projects. The effective treatment of these high-temperature slags and the recovery of the heat contained in them are of great significance for iron and steel enterprises to save energy, water consumption, and pollutant emissions. . [0003] Most of the liquid slag treatment systems in metallurgical ...

AI Technical Summary

Problems solved by technology

[0003] Most of the liquid slag treatment systems in metallurgical enterprises at home and abroad adopt traditional processes such as dry slag method, hot stuffing method, high-pressure water quenching method, etc., resulting in that most of the heat energy of liquid slag is not recovered, and some need to be cooled by a large amount of water, wasting a lot of energy. Energy and water resources, but also pollute the environment, need to bear huge environmental protection costs

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