Novel multilayer mineral wool processing and preparing method

Abstract

The invention discloses a novel multilayer mineral wool processing and preparing method, and belongs to the field of multilayer mineral wool preparation. According to the method, a conditioner is subjected to acid washing with diluted hydrochloric acid at a material preparation stage, such that the acid-insoluble substances in the conditioner are washed out, and the diluted hydrochloric acid can increase the acidity of the conditioner so as to improve subsequent conditioning efficiency; during the conditioning, the conditioner acid washing solution is subjected to dry distillation and acid washing through liquid-state blast furnace slag so as to save the energy for heating the conditioner acid washing solution and reduce the energy consumption in a mineral wool position limiting productionprocess; and in a subsequent airflow crushing link, the liquid-state blast furnace slag is subjected to fiber blowing by using disordered high-pressure airflow to prepare uniform mineral wool fibers,such that the blowing off of the mineral wool fibers by the high-pressure airflow during the fiber blowing can be avoided, the long mineral wool fibers are easy to prepare, the position limiting quality of the mineral wool is greatly improved, the processing performance of the mineral wool is improved, and the subsequent processing is convenient to perform.

Description

technical field [0001] The invention relates to the field of multi-layer mineral wool preparation, and more specifically relates to a novel multi-layer processing and preparation method of mineral wool. Background technique [0002] Mineral wool is a cotton-like staple fiber product made from silicate melt. It has excellent properties such as light weight, durability, non-combustibility, non-rot, and no insects. It is an excellent heat insulation and sound-absorbing material, including slag Mineral wool, rock wool, glass wool and ceramic fiber, etc., are the earliest mineral wool obtained from the crater of Hawaii. Therefore, mineral wool is also called "Fal's hair". Among them, those with metallurgical slag or fly ash as the main raw material are called slag. Cotton; those whose main raw materials are rocks such as basalt are called "rock wool". [0003] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged fr...

AI Technical Summary

Problems solved by technology

[0005] The main preparation method of mineral wool earlier is the cupola method. The cupola method has low technical content and relatively simple procedures. However, the cupola method has very obvious shortcomings in the production process: a large amount of smoke and dust generated during the production process, pollution Environment; the use of cold blast furnace slag as feed material requires remelting of fuel, and the production of 1 ton of mineral wool consumes about 400kg of coke, which increases energy consumption and production costs; the produced mineral wool products have high slag ball content, thick fibers, and poor hand feeling

Images