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Antimony concentrate vacuum smelting device

A vacuum smelting and concentrate technology, applied in the field of metal smelting, can solve the problems of low recovery rate of antimony metal and high cost

Pending Publication Date: 2020-05-15
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a vacuum smelting device for antimony concentrate to solve the problems of low recovery rate of antimony metal and high cost in the existing stibnite smelting method

Method used

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  • Antimony concentrate vacuum smelting device
  • Antimony concentrate vacuum smelting device

Examples

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Effect test

Embodiment 1

[0052] A method for smelting antimony metal, using vacuum melting equipment such as figure 1 As shown, the smelting method includes:

[0053] After mixing 1t antimony concentrate, soda ash (adding amount accounts for 70% of antimony concentrate), carbon powder (adding amount accounts for 6% of antimony concentrate), add binder (water, adding amount accounts for antimony concentrate, 5% of the total weight of soda ash and carbon powder) for briquetting or pelletizing; place the weighed crude antimony on the bottom plate 13 of the antimony concentrate vacuum smelting device, and then dry the briquette or pellet Above the rough antimony.

[0054] The pressure control device 20 (vacuum pump) is used to vacuum the melting chamber, so that the gas pressure in the furnace is 50 Pa, and then the electric heating device 16 (induction coil) is started for heating, and the materials in the furnace are heated to 700°C. The first smelting process is performed at the temperature, and the smelt...

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Abstract

The invention provides an antimony concentrate vacuum smelting device. The antimony concentrate vacuum smelting device comprises a shell, a program temperature control device and a pressure control device, wherein a smelting cavity, a charging port and a pressure control port are arranged in the shell, and the charging port and the pressure control port communicate with the smelting cavity; the charging port is used for adding stibnite, reducing fuel and an alkaline additive; the program temperature control device is used for controlling the temperature in the smelting cavity in stages; and the pressure control device communicates with the pressure control port and is used for controlling the vacuum degree in the smelting cavity. By adopting the vacuum smelting device to extract metallic antimony from the stibnite, the recovery rate of the metallic antimony is greatly improved, the process flow is simplified, and the recovery cost is reduced.

Description

Technical field [0001] The invention relates to the field of metal smelting, in particular to an antimony concentrate vacuum smelting device. Background technique [0002] The main phase in antimonite is antimony sulfide (Sb 2 S 3 ), the treatment process atmosphere of antimonite is divided into pyrotechnical process and wet process. At present, pyrometallurgical process has an absolute advantage, and more than 95% of antimony ore adopts pyrotechnic process to smelt metal antimony. The typical process flow of antimony pyrite smelting is: blast furnace volatilization smelting-reverberatory furnace reduction. During the smelting process, antimony sulfide volatilizes and oxidizes, while gangue slagging is released from the hearth, and the antimony oxide powder obtained from the flue gas dust enters the reflection Furnace reduction produces crude antimony. Although the "blast furnace-reverberatory furnace" process is mature, it still has the following shortcomings: [0003] Most of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B14/04F27B14/06F27B14/20F27D1/18F27B14/08F27B14/14F27D17/00C22B30/02C22B9/04
CPCC22B9/04C22B30/02F27B14/04F27B14/06F27B14/08F27B14/14F27B14/20F27B2014/045F27B2014/0843F27D1/1808F27D17/001F27D2001/1825F27M2003/13
Inventor 马登李东波陈学刚裴忠冶
Owner CHINA ENFI ENGINEERING CORPORATION
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