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Method for Eliminating Partial Pressure in Reduction Tank for Metal Vacuum Smelting and Reduction Tank Used

A vacuum smelting and reduction tank technology, applied in crucible furnaces, furnaces, lighting and heating equipment, etc., can solve the problems of reducing metal output, affecting reduction reaction, affecting the quality of output metal, etc., to achieve the effect of improving output and quality

Inactive Publication Date: 2011-12-28
GUIZHOU SHIJI TIANYUAN MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it affects the continuous normal progress of the reduction reaction, reduces the metal output, and affects the quality of the output metal

Method used

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  • Method for Eliminating Partial Pressure in Reduction Tank for Metal Vacuum Smelting and Reduction Tank Used
  • Method for Eliminating Partial Pressure in Reduction Tank for Metal Vacuum Smelting and Reduction Tank Used
  • Method for Eliminating Partial Pressure in Reduction Tank for Metal Vacuum Smelting and Reduction Tank Used

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Experimental program
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Effect test

Embodiment 1

[0014] Example 1. In this embodiment, a flow guide groove is opened on the heat conductor as a metal vapor outlet channel as an example to illustrate a specific implementation manner.

[0015] Such as image 3 and Figure 4 As shown, the heat conduction body 1 is welded on the inner wall of the reduction tank 2, and the heat conduction body 1 is provided with a diversion groove 4 as an outlet channel for exporting metal vapor, and the size of the diversion groove 4 is smaller than the diameter of the reduction material 7. Since the heat conductor 1 has a diversion groove 4, the metal vapor generated during the reduction reaction process of the reducing material 7 in the middle passes through the diversion groove 4 to the reduction crystallizer with a very high degree of vacuum quickly, so that no matter in the reduction tank 2 No local partial pressure can be formed in any place, the purpose of eliminating local partial pressure is achieved, and the reduction reaction condit...

Embodiment 2

[0016] Example 2. Such as figure 1 As shown, the heat conductor 1 is made into a hollow structure, so that a cavity 5 is formed in the middle of the heat conductor 1, and a through hole 6 is opened on the cavity to form a metal vapor export channel. The diameter of the through hole 6 is smaller than the particle size of the reducing material 7. path. The same principle can insert the metal vapor outlet pipe 3 in the reduction tank 2, such as figure 2 As shown, there is a through hole 6 on the metal vapor outlet pipe 3 to form a metal vapor outlet channel. The diameter of the through hole 6 is smaller than the particle size of the reduction material 7, forming an outlet channel directly connected to the reduction crystallizer with a high vacuum degree, so that The metal vapor generated in each part of the reduction tank can be sent out in time, so as to achieve the purpose of eliminating partial pressure to realize the export of metal vapor and achieve the purpose of elimina...

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Abstract

The invention discloses a method for eliminating partial pressure in a metal vacuum smelting reduction tank and the reduction tank used. A metal vapor export channel is added in the reduction tank, and a groove is opened on a heat conductor connected to the inner wall of the reduction tank to serve as a reduction tank. The export channel of the metal vapor generated in the reaction is directly connected to the reduction crystallizer with a high degree of vacuum, so that the metal vapor generated in each part of the reduction tank can be sent out in time, eliminating the need for metal vapor to escape during the reduction reaction of the existing reduction tank. Partial pressure formed locally destroys the reduction reaction conditions, thereby achieving the purpose of eliminating local partial pressure and improving the output and quality of smelted metal in the reduction tank.

Description

technical field [0001] The invention relates to a smelting equipment, in particular to a method for eliminating partial pressure in a metal vacuum smelting reduction tank and the used reduction tank. Background technique [0002] In the production of metal vacuum smelting by thermal reduction method, the reduced material produced through the batching and pressing process is sent to the reduction tank for reduction reaction. According to the difference of the reducing agent, the reduction reaction temperature is generally required to be 1000-1300 °C, and the internal pressure of the reduction tank is less than 10Pa~ 13 Pa. During the reduction reaction process, metal vapor will continue to escape from the materials. Since the reduction materials in the reduction tank are stacked and placed, the metal vapor generated by the reduction materials in the middle cannot be sent out in time due to the covering of the outer reduction materials. The partial pressure is higher than 10P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B5/16F27B14/08
Inventor 张继强黄贵明
Owner GUIZHOU SHIJI TIANYUAN MINING IND