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Smelting system for iron-based multi-metal mineral materials

A multi-metal and metal ore technology, applied in the field of metal smelting, can solve the problems of poor adaptability of raw materials and high energy consumption, and achieve the effect of improving environmental emission indicators, improving recovery rate, and reducing comprehensive energy consumption

Pending Publication Date: 2019-08-23
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a smelting system for iron-based polymetallic ore to solve the problems of high energy consumption and poor adaptability of raw materials existing in the smelting technology for iron-based polymetallic ore

Method used

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  • Smelting system for iron-based multi-metal mineral materials
  • Smelting system for iron-based multi-metal mineral materials
  • Smelting system for iron-based multi-metal mineral materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figures 1 to 4 As shown, the molten pool smelting device includes a connected molten pool smelting device 200 and an electrothermal reduction device 300. The molten pool smelting device 200 is provided with a first feed port 201 and a second feed port 202, and the first feed port 201 is arranged at the melting point. On the top of the pool smelting device 200 , the second feeding port 202 is arranged on the side wall of the molten pool smelting device 200 , and the electrothermal reduction device 300 is provided with a slag discharge port 301 and a metal discharge port 302 . The nozzle of the first side blowing lance 210 is submerged below the liquid level of the molten pool in the molten pool smelting device 200 through the second feeding port 202 to inject fuel and oxygen-enriched air into the molten pool.

[0041] The electrothermal reduction device 300 is provided with three electrodes 310 (self-baking electrodes), which are powered by AC. A second side bl...

Embodiment 2

[0044] The difference with embodiment 1 is:

[0045] The molten pool smelting device 200 does not use a submerged side blowing lance to inject fuel.

[0046] Through the above smelting process, the recovery rate of vanadium element is 93wt%, the recovery rate of iron element is 88wt%, and the comprehensive energy consumption is 7% higher than that of Example 1.

Embodiment 3

[0048] The difference from Embodiment 1 is that the number of electrodes 310 is two.

[0049] Through the above smelting process, the recovery rate of vanadium element is 94wt% and the recovery rate of iron element is 87wt%.

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Abstract

The invention provides a smelting system for iron-based multi-metal mineral materials. The iron-based multi-metal mineral materials comprise iron element, titanium element and vanadium element. The smelting system comprises a mixing device, a smelting-pool smelting device and an electrothermal reduction device, wherein the mixing device is provided with a proportioning inlet and a mixing outlet; the smelting-pool smelting device is provided with a first charge port, a second charge port and a melt outlet, the first charge port is formed in the top of the smelting-pool smelting device, the second charge port is formed in the sidewall of the smelting-pool smelting device, and the mixing outlet is formed in a manner of communicating with the first charge port and / or the second charge port; and the electrothermal reduction device is provided with a deslagging port, a metal discharge port and a melt inlet, and the melt inlet communicates with the melt outlet. The smelting system combining the mixing device, the efficient smelting-pool smelting device and the electrothermal reduction device is capable of effectively increasing the recovery rate for the vanadium element, and lowering theoperation labor intensity, and further has the advantage of reducing the comprehensive energy consumption, increasing the environmental emission indexes, and the like.

Description

technical field [0001] The invention relates to the field of metal smelting, in particular to a smelting system for iron-based polymetallic ore. Background technique [0002] Vanadium-titanium magnetite is a difficult ore to smelt. At present, the vanadium-titanium magnetite smelting devices that have been maturely used mainly include blast furnace smelting devices and rotary kiln-electric furnace smelting devices. [0003] The process of smelting with blast furnace smelting equipment is mainly to put the vanadium-titanium magnetite into the blast furnace after sintering or pelletizing to recover iron and vanadium. The existing document CN102041331A discloses a process for smelting vanadium-titanium magnetite in a blast furnace, in which the blast furnace is used as a smelting device. However, the main advantages of this smelting device are high production efficiency and large production scale. The disadvantages are high comprehensive energy consumption, long process, diff...

Claims

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Application Information

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IPC IPC(8): C21B13/14C22B4/06C22B4/08C22B34/22
CPCC21B13/14C21B13/006C21B13/0006C22B4/06C22B4/08C22B34/22
Inventor 李东波黎敏刘诚尉克俭茹洪顺郭亚光徐小锋曹珂菲李兵陈学刚
Owner CHINA ENFI ENGINEERING CORPORATION
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