Three-channel oxygen lance
An oxygen spray gun and three-channel technology, which is applied in the field of three-channel oxygen spray gun, can solve the problems of high-temperature liquid metal splashing, swaying of the spray outlet, uneven oxygen injection, etc., and achieve the effect of reducing the splashing of high-temperature liquid metal
Pending Publication Date: 2017-11-28
侯锦峰
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Problems solved by technology
In the existing oxygen spray gun, the flow rate and flow rate of the oxygen sprayed out are not properly controlled, resulting in uneven oxygen injection.
At the same time, the turbulence of the air flow will cause the nozzle to shake, causing high-temperature liquid metal to splash
Method used
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[0018] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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.
[0019] Such as Figure 1 ~ Figure 3 As shown, the three-channel oxygen spray gun of the present invention comprises a gun barrel, an oxygen inlet passage 1, an outer layer oxygen flower tube 8-2 and an inner layer oxygen flower tube 8-3; One end of the barrel connecting portion 7 is connected to the heat-resistant portion 8 of the barrel, the other end of the barrel connecting portion 7 communicates with the oxygen inlet passage 1, and an outer oxygen flower tube 8- 2. An inner oxygen flower tube 8-3 is arranged inside the outer layer oxygen flower tube 8-2, the outer wall of the inner layer oxygen f...
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The invention discloses a three-channel oxygen lance. The three-channel oxygen lance comprises a lance barrel, an oxygen inlet channel, an outer layer oxygen shock tube and an inner layer oxygen shock tube. The lance barrel comprises a lance barrel connecting part and a lance barrel heat resisting part. One end of the lance barrel connecting part is connected with the lance barrel heat resisting part. The other end of the lance barrel connecting part communicates with the oxygen inlet channel. The outer layer oxygen shock tube is arranged in the lance barrel heat resisting part. The inner layer oxygen shock tube is arranged in the outer layer oxygen shock tube. The outer wall of the inner layer oxygen shock tube is attached to the inner wall of the outer layer oxygen shock tube. The outer wall of the outer layer oxygen shock tube and the outer wall of the inner layer oxygen shock tube are both provided with oxygen grooves. According to the three-channel oxygen lance, oxygen is distributed, the flow speed and the flux of oxygen are controlled, meanwhile, the gas pressure of the oxygen at the center of an outlet of the lance is reduced, and the frequency of splashing high-temperature molten metal is decreased.
Description
technical field [0001] The invention relates to the technical field of injection devices in melting furnaces, in particular to a three-channel oxygen spray gun. Background technique [0002] Oxygen bottom-blowing smelting technology of non-ferrous metals has a history of more than 20 years at home and abroad, and domestic oxygen bottom-blowing lead smelting technology has developed rapidly in recent years. Bottom blowing furnace is the key equipment for bottom blowing smelting, oxygen lance is the core technology in oxygen bottom blowing smelting process. In the existing oxygen spray gun, the flow rate and the flow control of the oxygen sprayed out by it are improper, resulting in the inhomogeneous blowing amount of oxygen. At the same time, the turbulence of the airflow will cause the nozzle to shake, causing high-temperature liquid metal to splash. Contents of the invention [0003] In order to solve the technical problem of improper flow rate and flow control of oxyge...
Claims
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Login to View More IPC IPC(8): C22B13/02
CPCC22B13/02
Inventor 侯锦峰王超英
Owner 侯锦峰