Kiln device for producing mineral wool or rock wool by using high-temperature hot slag

Abstract

The invention discloses a kiln device for producing mineral wool or rock wool by using high-temperature hot slag. The kiln device comprises a hot flow slag groove, a main charging device, a mixing device, an electrode module, a kiln, a combustion device, a bubbling device and a material way, wherein one end of the hot flow slag groove is connected with a feed port of the kiln; the mixing device is positioned on the inner side of the kiln, and communicates with the feed port of the kiln; an outlet of the mixing device communicates with an inner cavity of the kiln; the main charging device is fixedly connected to a main feed port of the kiln; the combustion device is connected to the wall surface of the kiln; the electrode module is fixedly connected to the bottom of the kiln; the bubbling device is fixedly connected to the bottom of the kiln; the material way is positioned on the outer side of the kiln; and one end of the material way is connected with a discharge port of the kiln. The kiln device directly uses the high-temperature hot slag for producing the mineral wool and the rock wool, can remelt all waste cottons and slag balls produced in the production process for reutilization, and achieves the effects of high efficiency, energy conservation and environmental protection in the whole production process.

Description

technical field [0001] The invention belongs to the field of preparation of mineral wool and rock wool, and in particular relates to a kiln device for producing mineral wool or rock wool by using high-temperature hot slag. technical background [0002] The coordinated development of resources, environment, energy and population is a major social issue in today's world. The shortage of resources and the fragile carrying capacity of the environment are the two bottlenecks restricting my country's economic development. At present, the total discharge of industrial waste in my country has reached more than 3 billion tons. In 2015, the waste slag produced by the metallurgical industry alone reached more than 200 million tons. Among the main solid wastes in the metallurgical industry, blast furnace slag accounts for 25% to 50% of iron production, and steel slag accounts for 12% to 20% of steel production. Based on the annual production of 200 million tons of steel in my country...

AI Technical Summary

Problems solved by technology

However, there are still many technical problems in the direct use of high-temperature hot-melt slag.

At present, only a few iron and steel plants have tried to use hot slag to produce mineral wool by electromelting, but it is still unable to control the fluctuation of the liquid level, the composition is unstable, and there are problems such as unstable product quality and high overall cost.

Images