Method for producing ultra-fine basalt continuous filament

Abstract

The invention relates to a method for producing a superfine basalt continuous fiber, which comprises the following steps: breaking, smashing and screening a basalt ore raw material; removing iron from the basalt raw material powder; washing the raw material with clear water and mixing the raw material with a fusing assistant; and performing melting, soakage and fiber drawing on the mixed raw material in a tank furnace to finally obtain the superfine basalt continuous fiber. The production process provided by the invention has the characteristics of low cost, excellent product quality, and the like.

Description

Technical field [0001] The invention relates to a production method of basalt fiber, in particular to a production method of ultrafine basalt continuous fiber. Background technique [0002] Basalt is an igneous rock formed by underground magma ejected from volcanoes or condensed from surface fissures. The main component of basalt is sodium aluminosilicate or calcium aluminosilicate. The content of silicon dioxide is about 45-52%. It also contains high iron oxide and magnesium oxide. It is a fine-grained dense black rock. Due to the large number of stomata produced during the eruption, sometimes large pores such as almond-shaped structures are often filled with other minerals. Basalt magma has a low viscosity, is easy to flow, and forms a large overburden, often forming a vast lava platform, so it is widely distributed. [0003] Basalt can be divided into basalt, alkaline basalt, and high-aluminum basalt according to its different composition; according to its different structure,...

AI Technical Summary

Problems solved by technology

[0009] Due to the lack of suitable furnace material, the life of the furnace is short and the unit cost is increased

It is also due to the material of the furnace body. If the insulation is done well, the life of the furnace body will be shortened. If you want to prolong the life of the furnace body, you dare not make the furnace body a good insulation layer, which will lead to excessive power consumption during the heating process.

[0010] 2. The performance of basalt fiber cannot meet the requirements of specific working conditions

[0012] 3. The wire drawing operation in the production process is unstable

[0013] At present, some domestic basalt fiber production enterprises generally have problems in the process of fiber forming, such as unstable operation, uneven fiber formation, and difficult control of number unevenness, mainly because the kiln is in the process of melting rock. Uneven distribution, uneven current, resulting in uneven melting melt

[0014] 4. The life of the wire drawing furnace and bushing is short and the output is low

[0015] The melting temperature of basalt fiber in the melting process is more than 200 degrees higher than that of ordinary glass fiber, and there are a lot of metallic iron in the rock, and there are many oxides that continue to volatilize, which has a great impact on the furnace body and bushing plate. damage, resulting in severe damage to both

[0016] This shows that the production method of above-mentioned existing basalt continuous fiber obviously still has inconvenience and defective, and urgently needs to be further improved

In order to solve the problems existing in the production method of basalt continuous fiber, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time. This is obviously a problem that the relevant industry is eager to solve

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