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Process method for treatment of nonferrous metal material through energy-saving and environmental protection-type oxygen-rich smelting furnace

A non-ferrous metal, energy-saving and environment-friendly technology, applied in the field of metallurgy, can solve the problems of insufficient smelting flue gas desulfurization depth, substandard tail gas emissions, and low smelting intensity, and achieve the effects of good production environment, improved smelting intensity, and improved smelting efficiency

Inactive Publication Date: 2017-03-15
HUNAN ZHONGDA JOINT INNOVATION & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the metallurgical industry, it is usually necessary to smelt metal materials. Traditional metal smelting uses blast smelting. The smelting intensity is not high, the desulfurization depth of smelting flue gas containing sulfur dioxide is not enough, the tail gas emission is not up to standard, and pollutes the environment.
Especially for the smelting of complex raw materials, the black furnace is often caused due to the low temperature of the hearth

Method used

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  • Process method for treatment of nonferrous metal material through energy-saving and environmental protection-type oxygen-rich smelting furnace

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Effect test

Embodiment 1

[0028] An embodiment of the process method of the present invention using an energy-saving and environment-friendly oxygen-enriched smelting furnace to process non-ferrous metal materials, the process flow chart is as follows figure 1 shown. This processing method specifically comprises the following steps:

[0029] (1) Mix 30 kg of cement, 20 kg of lime, 50 kg of electronic sludge, 100 kg of copper slag, 20 kg of gold and silver-containing slag, 30 kg of iron oxide powder and 150 kg of copper oxide ore, and then mix the ingredients Made into agglomerates to obtain lumps or pellets.

[0030] (2) After natural air-drying or drying of the block or pellet-like materials obtained in step (1), add them together with 40kg of limestone, 10kg of quartz stone and 80kg of carbon essence into an energy-saving and environment-friendly oxygen-enriched smelting furnace for smelting; The main chemical components contained in the added mixed material and their mass percentages are: Cu 18%, ...

Embodiment 2

[0033] An embodiment of the process method of the present invention using an energy-saving and environment-friendly oxygen-enriched smelting furnace to process non-ferrous metal materials, the process flow chart is as follows figure 1 shown. This processing method specifically comprises the following steps:

[0034] (1) Mix and mix 10 kg of cement, 20 kg of lime, 80 kg of lead slag, 20 kg of lead soot, 200 kg of lead oxide ore, 10 kg of silver-containing slag, and 20 kg of iron oxide powder, and then make the mixture into balls Agglomerates or lumps to obtain lumps or pellets.

[0035] (2) After natural air-drying or drying of the block or pellet-like materials obtained in step (1), add them together with 50 kg of limestone, 10 kg of quartz stone and 80 kg of coke into an energy-saving and environment-friendly oxygen-enriched smelting furnace. Melting; the main chemical components contained in the added mixed material and their mass percentages are: Pb 30%, FeO 19%, CaO 12%,...

Embodiment 3

[0038]An embodiment of the process method of the present invention using an energy-saving and environment-friendly oxygen-enriched smelting furnace to process non-ferrous metal materials, the process flow chart is as follows figure 1 shown. This processing method specifically comprises the following steps:

[0039] (1) Mix and mix 10 kg of cement, 20 kg of lime, 200 kg of copper concentrate, 100 kg of copper slag, 20 kg of gold-containing slag, and 30 kg of iron oxide powder, and then make the mixture into a lump to obtain a lump shaped or pelletized materials.

[0040] (2) After natural air-drying or oven-drying of the block or pellet-like materials obtained in step (1), add them together with 40 kg of limestone, 10 kg of quartz stone and 70 kg of coke into an energy-saving and environment-friendly oxygen-enriched melting furnace for melting ; The main chemical components contained in the added mixed material and their mass percentages are: Cu 20%, FeO 20%, CaO 10%, SiO 2 ...

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Abstract

The invention discloses a process method for treatment of a nonferrous metal material through an energy-saving and environmental protection-type oxygen-rich smelting furnace. The method includes the following steps that (1) cement, lime and the nonferrous metal material are mixed to be blended, and then the mixed material is made to be in a block shape or pellet shape to obtain a block-shaped or pellet-shaped material; and (2) the obtained block-shaped or pellet-shaped material, limestone, quartz stone and coke or carbon buttons are added into the oxygen-rich smelting furnace to be smelted, oxygen-rich hot air is connected into the oxygen-rich smelting furnace in the smelting process, oxygen-rich concentration of the connected-in oxygen-rich hot air is adjusted through a distributed control system, a shell of the oxygen-rich smelting furnace is provided with a water jacket, the inner side of the water jacket is provided with a refractory concrete protecting layer, most rare and noble metals are gathered into crude metal after smelting is completed, and flue gas, cyclic collection flue gas, crude metal, soot and slag are obtained after smelting is over. By the adoption of the process method, smelting strength and smelting efficiency are high, the amount of flue gas is small, and energy saving and environmental protection can be realized.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a process method for treating nonferrous metal materials in an energy-saving and environment-friendly oxygen-enriched smelting furnace. Background technique [0002] In the metallurgical industry, it is usually necessary to smelt metal materials. Traditional metal smelting uses blast smelting. The smelting intensity is not high, the desulfurization depth of smelting flue gas containing sulfur dioxide is not enough, the tail gas emission is not up to standard, and pollutes the environment. Especially for the smelting of complex raw materials, the black furnace is often caused due to the low temperature of the hearth. Therefore, it is necessary to research and develop a smelting treatment method for non-ferrous metal materials that can effectively increase smelting intensity, improve smelting efficiency, save energy and reduce consumption, so as to meet the actual needs of effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00B09B3/00
CPCC22B7/001B09B3/29B09B3/80Y02P10/20
Inventor 郭学益李国钦张顺应
Owner HUNAN ZHONGDA JOINT INNOVATION & TECH DEV CO LTD
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