Top blowing spray gun

Abstract

The invention discloses a top blowing spray gun which comprises an air pipe, end pressure measuring sleeves, fuel pipes and sleeving parts, wherein the end pressure measuring sleeves are arranged in the air pipe; the outer peripheral surfaces of the end pressure measuring sleeves are spaced with the inner peripheral surface of the air pipe; the fuel pipes are arranged in the end pressure measuring sleeves; a fuel channel is limited in each of the fuel pipes; the sleeving parts are arranged on the end pressure measuring sleeves in a sleeving manner; an air channel is limited by the outer peripheral surfaces of the sleeving parts and the inner peripheral surface of the air pipe. The top blowing spray gun provided by the embodiment of the invention has a good adaptability to electronic scrap smelting, is not easy to damage, enables smelting to be carried out smoothly, and provides a guarantee for the smelting effect.

Description

technical field [0001] The invention relates to the technical field of smelting, and more specifically, to a top blowing spray gun. Background technique [0002] The submerged top-blowing lance bath melting technology is widely used in the melting and blowing process of different metals in pyrometallurgy, and is also used in the international advanced electronic waste melting technology. [0003] As the core equipment of the top-blown submerged spray gun molten pool melting technology, the spray gun can deliver process air, oxygen, and fuel to the molten pool and carry out strong stirring to complete heat transfer, mass transfer and physical and chemical reactions in the melting process, and at the same time withstand high temperature burning , slag erosion and chemical corrosion. Therefore, the spray gun head is easy to burn, and the gun body may also wrinkle and break. The service life of the spray gun is directly related to the smoothness of the process, and the structu...

AI Technical Summary

Problems solved by technology

[0005] The inventors of the present application found that when using small-diameter spray guns for electronic waste smelting, the probability of problems such as bending and twisting of the spray guns is very high, because the size of the spray guns is usually long and extends into the smelting furnace, especially It will protrude into the melt, and the state of the spray gun cannot be checked from the outside at any time, so that it is difficult to be found in time when the spray gun is damaged, which will have a great impact on smelting

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