Tank furnace for producing basalt continuous fiber

Abstract

The invention relates to a tank furnace for producing basalt continuous filament and pertains to the technical field of novel inorganic non-metallic material processing equipment, the main characteristics are that the furnace body consists of a melting tank and material channels, the melting tank and the material channels are connected by non-submerged dog-holes, the melting tank is divided into a melting area and a homogenization area, a burner is arranged at the top of the furnace vertically, the burner guns of melting area and the feeding pipes are arranged in intervals, and the strong melting area of even feeding and even heating is formed. The material channels are arranged in three directions in the homogenization area of the melting tank, burner guns are arranged in the material channel in sections, the temperature of the fused mass in the material channels is guaranteed, more than 12 wiredrawing shaping areas are evenly arranged in each material channel so as to supply basalt melt mass for the wiredrawing bushing well, emptying devices are arranged at the tail part of the melting tank and the tail parts of all material channels, during the operation, the operation of discharging the meltwater can be carried out when impurities are stored in the meltwater for a long time or the varieties of raw materials are changed. The invention is in favor of improving the quality and industrialized production of the basalt continuous filament.

Description

technical field [0001] The invention relates to a tank kiln for producing continuous basalt fibers, and belongs to the technical field of new inorganic non-metallic material production equipment. Background technique [0002] Basalt continuous fiber is one of the four major special fibers that the country focuses on. It has the characteristics of high strength, acid and alkali resistance, and good high and low temperature performance. It can be widely used in various fields of military, industrial and civilian products, and has a broad market prospect. [0003] Since the 1970s in the research and development of domestic basalt continuous fiber, the National Academy of Building Materials Science and other units have carried out corresponding research intermittently. At present, domestic small-scale manufacturers of continuous basalt fiber include: Hengdian Group Shanghai Russia Gold Basalt Fiber Co., Ltd., Sichuan Aerospace Tuoxin Basalt Industry Co., Ltd., Ning’an City, Heil...

AI Technical Summary

Problems solved by technology

The raw materials of basalt ore come from the place where the company belongs, and the fiber quality is restricted by the region, which is far from meeting the market demand

[0004] At present, several countries such as Russia, Ukraine, and the United States have mastered the industrial production technology for manufacturing basalt continuous fiber. Among them, Russia and Ukraine have made great achievements in the production of basalt continuous fiber and product development and application, but the production of basalt continuous fiber in the world The overall production technology cannot realize the large-scale production of continuous basalt fiber

At present, the stable production technology of basalt continuous fiber in the world generally stays at the unit furnace level of 200-hole platinum-rhodium alloy wire drawing bushing plate. There has not yet been a pool kiln technology for the production of basalt continuous fiber. The annual output of the world is less than 3,000 tons. Existing production capacity can only meet less than 1-5% of world market demand

[0005] Basalt molten liquid has the characteristics of slow heat transfer, large temperature gradient, and easy crystallization. The existing production technology has the disadvantages of slow melting speed of basalt raw materials, uneven temperature and easy formation of crystallization. Impurities, crystals, etc. are not easy to eliminate and affect normal production

For example, in the basalt continuous fiber production tank kiln, the submerged flow hole structure similar to the glass fiber tank kiln is adopted. Due to the high melting temperature of basalt, the working environment of the flow hole is even harsher, and the demand for platinum is greater and it is more likely to be damaged. , at the same time, the submerged flow hole cannot take the best quality melt in the upper layer of the melting pool

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