Burner nitrogen protection device and nitrogen protection method
A technology of nitrogen protection device and protective cover is applied in the field of furnace head nitrogen protection device and nitrogen protection, which can solve the problems of poor copper liquid protection effect, high cost and poor casting environment.
Inactive Publication Date: 2015-03-11
CNMC ALBETTER ALBRONZE
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Problems solved by technology
This method is expensive, the casting environment is poor, and the protection effect on the copper liquid is not good.
Currently, there is no good solution
Method used
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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0024] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" etc. indicate orientation or position The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation,...
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The invention discloses a burner nitrogen protection device, which comprises a sleeve an adjusting cylinder, a spring, an upper end cover and a protection cover, wherein the outer side of the lower end of the sleeve is provided with a first limiting part, the inner side of the upper end of the adjusting cylinder is provided with a second limiting part which is matched with the first limiting part, the sleeve slides and extends into the adjusting cylinder, the outer side of the adjusting cylinder is provided with a convex spherical surface, the spring sleeves the outer side of the sleeve, one end of the spring is connected with the upper end of the sleeve, the other end of the spring is connected with the upper end surface of the adjusting cylinder, a crossover port is formed in the inner side of the upper end cover, the inside surface of the crossover port is provided with a concave spherical surface which is matched with the convex spherical surface, the upper end of the protection cover is connected with the upper end cover, and the protection cover is provided with an air inlet. The invention also discloses a burner nitrogen protection method. The burner nitrogen protection device has the characteristics that the cleaning and environment-friendly effects are realized, the service life is long, the production cost is low, the protection effect of molten copper is good, and the good popularizing and applying value is realized.
Description
technical field [0001] The invention relates to a furnace head nitrogen protection device and a nitrogen protection method, in particular to a nitrogen protection device and a nitrogen protection method for molten copper and pouring pipes in the semi-continuous casting process of red copper. Background technique [0002] In the existing semi-continuous casting process, the furnace head part is covered with carbon black to protect the surface of the copper water to reduce the oxidation of the copper water by the air during the process, while the pouring pipe part is still exposed to the air during the casting process. The service life of the pouring pipe is greatly reduced. This method has high cost, poor casting environment, and poor protection effect on copper liquid. Currently, there is no good solution. Contents of the invention [0003] The present invention aims at the deficiencies in the above-mentioned prior art, and provides a furnace head nitrogen protection dev...
Claims
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IPC IPC(8): B22D11/11
CPCB22D11/11
Inventor 赵长军赵洪山张建华郭丽丽荆岩李学帅郑朋艳
Owner CNMC ALBETTER ALBRONZE