A submerged tube-bundle mixing top-blowing spray gun

Abstract

The invention relates to an immersed pipe bundle mixing and top-blowing spray gun and belongs to the technical field of nonferrous metal smelting. The immersed pipe bundle mixing and top-blowing spray gun comprises a pipe bundle mixing section (1), three or more than three same multi-fluid interfaces (2) which are formed in the top part or tin he annular lateral direction of the pipe bundle mixing section (1), a mixed fluid straight-through section (3) which is connected with the pipe bundle mixing section (1), a rotational flow section (4) in which a cyclone is arranged and which is connected with the mixed fluid straight-through section (3), and a hollow turbulent flow section (5) with one end which is connected with the rotational flow section (4) and the other end which is opened. The immersed pipe bundle mixing and top-blowing spray gun has the beneficial effects that the structure is simple, the spray gun is convenient to manufacture, the cooling strength is high and the service life is long; the effect of mixing multiple fluids in the spray gun is realized and the nonferrous metal smelting efficiency is improved; since the turbulent flow section (5) is a layer of pipe, when the turbulent flow section is buried in a fire metallurgy container and is partially lost, only the end part needs to be trimmed flat, another section is reconnected, the turbulent flow section can be put into use again and the smelting operating cost is greatly reduced.

Description

Technical field: [0001] The invention relates to a submerged tube bundle mixing top blowing spray gun, which belongs to the technical field of heavy nonferrous metal smelting. Background technique: [0002] In the prior art, there are mainly two kinds of lances used in submerged top-blown furnaces: the first one is the Siro lance, which is the first generation of submerged top-blown lance (the patent protection of the lance has expired at present). This kind of spray gun mixes various fluids through the mixing equipment (such as oxygen mixer) outside the spray gun, and then enters the Siro spray gun after mixing. The disadvantage of this spray gun is that additional mixing equipment is required, the cross-section of the spray gun interface is large, the fluid pressure requirement is high, and it is not convenient to increase the fluid flow rate, which limits the bed energy rate of the metallurgical furnace to a certain extent. [0003] The second is the sleeve-type spray gu...

AI Technical Summary

Problems solved by technology

The disadvantage of this type of spray gun is that it requires additional mixing equipment, the cross-section of the spray gun interface is huge, the fluid pressure requirement is high, and it is not convenient to increase the fluid flow rate, which limits the bed energy rate of the metallurgical furnace to a certain extent.

The disadvantage of this spray gun is that the outer layer of the spray gun is easy to be burned and deformed, the fluid flow rate for the external cooling of the spray gun is small, and the cooling intensity is poor

Through document retrieval, do not see the public report identical with the present invention

Images