Continuous production method of cotton fiber heat-insulating material by using molten yellow phosphorus slag

Abstract

The invention relates to a production method of cotton fiber, comprising the following steps: 1. conveying molten phosphorus slag; 2. adjusting components of the phosphorus slag: selecting the following additives based on the weight percentage of the phosphorus slag: 1%-10% of borax, 0.1%-0.5% of albite, 0.01%-0.03% of sodium carbonate and 10%-30% of glass, evenly mixing the additives, placing in a storage container, heating and melting the additives by tail gas of a phosphorus furnace to form a molten mass, and directly adding the molten mass to the molten phosphorus slag; 3. making the phosphorus slag into cotton: transferring the phosphorus slag obtained in step 2 into a four-roll high-speed centrifugal cotton making machine, and adding a secondary adjuvant to positive-pressure airflow needed for cotton making to participate in the cotton-making procedure, wherein, the secondary adjuvant is mixed liquid composed of the following components in percentage by weight: 60%-80% of kerosene and 20%-40% of paraffin, and the secondary adjuvant accounts for 0.5%-1% of the weight of the phosphorus slag; and 4. collecting, curing and forming the cotton fiber.

Description

technical field [0001] The invention relates to a method for cotton fiber, in particular to a method for producing cotton fiber by directly using yellow phosphorus slag as a follow-up production process. Background technique [0002] In the production process of yellow phosphorus, about 10 tons of slag is produced for every 1 ton of yellow phosphorus produced. The chemical composition of phosphorus slag is characterized by SiO2+Al2O3+CaO+MgO content of 95.00%. It is a high-quality raw material for manufacturing building materials and insulation materials. The current treatment situation in the industry is that part of it is used to produce slag cement as an active material additive, and a small amount is used as brick and silicon fertilizer, and most of the rest are piled up, causing serious solid waste pollution. [0003] At present, my country's mineral wool production is dominated by the cupola method and the electric furnace method (according to the raw material melting ...

AI Technical Summary

Problems solved by technology

This process requires electric heating for heat preservation during the transportation of phosphorous furnace slag, and there is additional power consumption

Moreover, the composition of phosphorus furnace slag has not been adjusted, and the product quality is difficult to meet the quality standard requirements