A slag furnace for processing blast furnace hot slag

Abstract

The invention discloses a slag furnace for treating a blast furnace thermal-state slag and aims to provide the slag furnace which not only can fully utilize residual heat resources in the blast furnace thermal-state slag and is energy-saving and environmental-protective but also can enable a melt in the slag furnace to be melted uniformly, a vitrification degree to be high and a fiber-forming ratio and quality of mineral wool to be improved. The slag furnace includes a feeding tank, a homogenizing tank, a melting tank, a clarifying tank and at least two material paths. A slag flow inlet and a main modulating material feeding port are arranged on an upper part of the feeding tank. The bottom of the feeding tank is connected to the bottom of the homogenizing tank through a first liquid flowing path. The bottom of the homogenizing tank is communicated with the bottom of the melting tank through a second liquid flowing path. The clarifying tank is communicated with the melting tank through a third liquid flowing path. One end of each material path is communicated with the clarifying tank and the other end of each material path is closed. In addition, material outlet ports are arranged at the bottoms of the material paths.

Description

technical field [0001] The invention relates to the technical field of slag high-temperature melt, in particular to a slag furnace for processing blast furnace hot slag. Background technique [0002] With the rapid development of the global economy, the problem of energy shortage is becoming more and more serious, and the technology of energy saving and emission reduction has become a research hotspot all over the world. At present, my country's energy situation is severe, and the product energy consumption index is too high. The energy consumption per unit of the main energy-consuming products is 25-90% higher than that of developed countries (the weighted average is about 40% higher); secondly, the energy consumption of the output value is high. Energy consumption is one of the highest in the world. For example, for every kilogram of oil equivalent of energy, Japanese companies can create an average output value of 10.2 US dollars, while China can only create 0.7 US dollars...

AI Technical Summary

Problems solved by technology

Since blast furnace slag is widely used, the principle of energy recovery of slag is not only to recover residual heat resources, but also to facilitate the reuse of slag. While making full use of the sensible heat of waste slag, produce mineral wool, slag glass ceramics, etc. Building material products with high added value; but at present, most blast furnace slags at home and abroad are mainly water-quenched, and the heat cannot be recycled

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