Overall weld joint-free conicity oxygen gun
A technology without welds and oxygen lances, which is applied in the manufacture of converters, etc., can solve the problems of tapered oxygen lance damage and weld cracking on the outer wall of the tapered oxygen lance, and achieve the effects of avoiding weld cracking, improving fixing strength, and avoiding damage
Inactive Publication Date: 2019-01-04
周贵英
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Problems solved by technology
[0002] Currently, tapered oxygen lances are installed in converters or other steelmaking furnaces used for steelmaking, but there are either transverse welds or longitudinal welds on the outer wall of the lower part of the current tapered oxygen lances. In this way, the welding seam on the outer wall of the tapered oxygen lance will crack, which will cause damage to the tapered oxygen lance
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0017] As shown in the figure, the overall non-welded taper oxygen lance of the present invention includes an oxygen tube 1, and the outside of the oxygen tube 1 is provided with an outer tube 2 of the oxygen lance, and the outer tube 2 of the oxygen lance is connected to the lower end of the oxygen tube 1 in one body. The outer tube 2 of the oxygen lance and the oxygen tube 1 are integrally formed, and the lower part of the outer tube 2 of the oxygen lance forms a ...
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The invention discloses an overall weld joint-free conicity oxygen gun which comprises an oxygen tube, wherein the oxygen tube is sleeved by an outer oxygen gun tube; the outer oxygen gun tube is integrally molded with the oxygen tube; a conical part which is shrunk inwards gradually from top to bottom is formed at the lower part of the outer oxygen gun tube; a middle oxygen gun tube is arranged between the outer oxygen gun tube and the oxygen tube; the middle oxygen gun tube is fixed with the outer oxygen gun tube; the upper end of the middle oxygen gun tube extends outside the outer oxygen gun tube; the upper end of the oxygen tube extends outside the middle oxygen gun tube; the middle oxygen gun tube is sleeved by a first sealing cover; the first sealing cover is welded with the upper end of the outer oxygen gun tube and the outer wall of the middle oxygen gun tube; the oxygen tube is sleeved by a second sealing cover; the second sealing cover is welded with the upper end of the middle oxygen gun tube and the outer wall of the oxygen tube; a water outlet tube is communicated with the side wall of the outer oxygen gun tube; a water inlet tube is communicated with the side wall ofthe middle oxygen gun tube above the first sealing cover. By adopting the overall weld joint-free conicity oxygen gun, a phenomenon of weld joint cracking is avoided, and furthermore damage of the overall weld joint-free conicity oxygen gun can be avoided.
Description
technical field [0001] The invention relates to the technical field of steelmaking devices, in particular to an integral weldless taper oxygen lance. Background technique [0002] Currently, tapered oxygen lances are installed in converters or other steelmaking furnaces used for steelmaking, but there are either transverse welds or longitudinal welds on the outer wall of the lower part of the current tapered oxygen lances. In this way, the weld on the outer wall of the tapered oxygen lance will crack, which will cause damage to the tapered oxygen lance. Contents of the invention [0003] The present invention proposes an integral non-welded taper oxygen lance. The oxygen tube in the taper oxygen lance is integrally formed with the outer tube of the oxygen lance. In this way, weld seams can be avoided on the outer wall of the taper oxygen lance, thereby avoiding the occurrence of welds. The phenomenon of seam cracking can avoid the damage of the tapered oxygen lance. [0...
Claims
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IPC IPC(8): C21C5/46
CPCC21C5/4606
Inventor 周贵英
Owner 周贵英