A direct molten iron blowing furnace

Abstract

The invention provides a molten iron blowing straight furnace. The molten iron blowing straight furnace comprises a furnace body and a blowing straight tube, wherein the furnace body is fixedly connected with a rack, a sealing cover is arranged above the furnace body, the blowing straight tube vertically penetrates through the sealing cover and the bottom part of the furnace body and the blowing straight tube is assembled with the bottom part of the furnace body in sliding and sealing manners; the blowing straight tube is internally provided with a pipeline communicated with the blowing gas channel, blowing tubes which are circumferentially and uniformly distributed, are designed on the part, extending into the furnace body, of the blowing straight tube, the blowing tubes are communicated with the interior of the blowing straight tube and are used for obliquely and downwards blowing gas. The furnace body is directly fixed, does not be rotated in the production process so that the production time is saved and meanwhile, the entire furnace body is closely designed, the heat generated in the production inside the furnace cannot escape and be wasted and meanwhile, the exhaust gas produced inside the furnace body is more convenient to treat and the exhaust gas cannot be directly discharged into the air to cause environmental pollution.

Description

Technical field [0001] The invention belongs to the technical field of metal smelting equipment, in particular to a molten iron blowing straight furnace. Background technique [0002] Smelting is a refining technology, which is used to extract metals from ores by roasting, smelting, electrolysis and using chemical agents; reduce impurities contained in metals or increase certain components in metals to smelt required metals. In the process of metal smelting, especially in the process of iron and steel smelting, various smelting furnaces are often used, and the converter is a kind of smelting furnace that is often used. The furnace body can be rotated and is used for metallurgical furnaces for blowing steel or blowing matte. The furnace body of the converter is made of steel plate, which is cylindrical and lined with refractory materials. It is heated by chemical reaction heat during blowing and does not require an external heating source. It is the most important steelmakin...

AI Technical Summary

Problems solved by technology

Although the smelting has a simple structure and is easy to use, it needs to keep turning the furnace during use, making it difficult to seal the upper part of the converter, which will cause a large amount of heat in the smelting furnace to escape and cause waste; at the same time, it will overheat the workshop and make the steel The production environment of the factory is not good, and too many rotation steps also greatly affect the production efficiency of the converter, and the dumping of the smelting furnace is usually directly in contact with the outside air, which also has a greater safety hazard

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