Method for smelting reduction production of zinc smelting slag
A technology of zinc smelting slag and zinc smelting, which is applied in the field of smelting reduction production of zinc smelting slag, and can solve problems such as waste of resources, environmental pollution, and large pollution
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0222] Example 1
[0223] A method for smelting reduction production of zinc smelting slag includes the following steps:
[0224] Step 1, slag mixing: add cold zinc smelting slag (zinc leaching slag and volatile kiln slag) into the DC electric arc furnace, while adding lime and SiO 2 , MgO, Al 2 O 3 , Forming a mixed slag; heating the mixed slag to a molten state to form a copper-containing reaction slag, and at the same time adding copper oxide concentrate, and the reaction slag can be mixed naturally; real-time monitoring of the reaction slag, while ensuring that (a ) And (b) two parameters to obtain the slag after the reaction is completed;
[0225] Corresponding to (a): The temperature of the copper-containing reaction slag is 1660℃. Use a refractory spray gun to insert into the reaction slag. Use nitrogen with a preheating temperature of 1100℃ as the loading gas, and spray into the normal temperature powdery copper slag with a particle size of ≤150μm , Copper-containing soot, m...
Example Embodiment
[0234] Example 2
[0235] A method for smelting reduction production of zinc smelting slag includes the following steps:
[0236] Step 1, slag mixing: add cold zinc smelting slag (zinc leaching slag) into the pourable smelting reaction slag pot, while adding limestone, dolomite, red mud, FeO and Fe 2 O 3 , To form a mixed slag, add copper oxide concentrate and copper sulfide concentrate at the same time; use oxygen-enriched air with a preheating temperature of 800 ℃, inject natural gas, 20mm anthracite and coke particles to heat the mixed slag to a molten state , The formation of copper-containing reaction slag; real-time monitoring of the reaction slag, by adjusting and controlling the two parameters (a) and (b) at the same time, to obtain the slag after the reaction is completed;
[0237] Corresponding to (a) The temperature of the copper-containing reaction slag is 1520℃, and the refractory spray gun is used to insert the reaction slag, and the normal temperature argon is used as ...
Example Embodiment
[0254] Example 3
[0255] A method for smelting reduction production of zinc smelting slag includes the following steps:
[0256] Step 1, slag mixing: add zinc smelting slag (hot volatilized slag obtained from the discharge port of the volatilization kiln) into the DC electric arc furnace, and at the same time add limestone and high-calcium red mud after sodium removal to form mixed slag, and add sulfide Copper concentrate; use oxygen with a preheating temperature of 900°C to inject anthracite, coke particles and coal powder with a particle size of 20mm to heat the mixed slag to a molten state to form a copper-containing reaction slag, which is mechanically stirred and mixed; real-time monitoring of the reaction Slag, by adjusting and controlling the two parameters (a) and (b) at the same time to obtain the slag after the reaction is completed;
[0257] Corresponding to (a): The temperature of the copper-containing reaction slag is 1685℃. Add acidic metallized pellets, copper smelti...
PUM
Property | Measurement | Unit |
---|---|---|
Granularity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap