Method for processing mineral wool

Abstract

The invention provides amineral wool processing method applied to the mineral wool production field. The said processing steps of mineral wool comprises 1)adding liquid blast furnace slag ,which is used as a raw material, into a melting quenching and tempering furnace (4),andblowing sandstone ,which is used as a modified material, and sodium carbonate ,which is used as an viscosity improving agent, into the melting quenching and tempering furnace (4); 2) after melting and mixing the liquid blast furnace slag, sandstone and sodium carbonate at a high temperature , conveying the high-temperature melt to an intermediate reservoir (8) through a flow mixing arrangement (7); 3) after the liquid high-temperature melt (6) in the intermediate reservoir (8) flows out from a slag outlet of the intermediate reservoir (8), performing silk throwing with a centrifugal silk throwing machine (9) to form mineral wool. The processing method for mineral wool disclosed by this invention can remarkably reduce the energy consumption during the mineral wool processing and effectively utilize the potential heat energy of the high temperature slag to reduce the energy waste, therefore minimizing the processing cost of mineral wool.

Description

technical field [0001] The invention belongs to the field of slag wool production, and more specifically relates to a slag wool processing method. Background technique [0002] Slag wool is made of blast furnace slag as the main raw material, adding part of the conditioning agent, and is made of filamentary inorganic fiber by high-speed centrifugation or blowing after melting. It has the characteristics of small thermal conductivity, non-combustible, harmless to human body, long service life, good sound insulation effect, light weight, wide temperature range, mothproof, cheap, corrosion resistance, good chemical stability, good sound absorption performance, etc. , can be used for filling insulation, sound absorption, sound insulation of buildings and filling insulation of various thermal equipment. [0003] At present, in China, cold blast furnace slag and basalt are generally used as main raw materials, a certain proportion of silica, dolomite, etc. are used as tempering m...

AI Technical Summary

Problems solved by technology

[0004] However, in recent years, with the rapid expansion of the use of basalt, silica, and coke, resource shortages have resulted, and raw material prices have risen sharply

In addition, the production of cold bulk slag raw materials is also decreasing day by day, coupled with factors such as the impact of cupola on the environment and incomplete homogenization of slag system resulting in unstable quality of slag wool, the development of cold state production of slag wool technology is limited

The main difficulty in producing slag wool from hot blast furnace slag is in the mixing and homogenization technology of cold solid conditioner and hot melt liquid blast furnace slag, that is, at high temperature, the addition method of quenching and tempering material, the melting of solid and the The mixing of slag liquid makes it difficult to achieve homogeneity and uniform temperature of the slag system

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