Depth iron extraction and impurity reduction technology of refractory rhombohedral iron ore stone resources
A technology for refractory iron ore separation, applied in magnetic separation, solid separation, chemical instruments and methods, etc., can solve the problems of adverse effects of smelting process, low recovery rate, high processing cost, etc., and achieve good effect of improving iron and reducing impurities Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] The ore sample comes from an iron ore containing 36.53% iron, 0.86% sulfur, 0.95% phosphorus, 18.23% silicon dioxide, and 9.23% aluminum oxide in a certain area in Chongqing. The iron in the sample is mainly siderite, and it also contains some Iron minerals such as red limonite, pyrite, iron silicate, etc.
[0026] The iron ore is crushed to less than 3mm; the ore crushed to less than 3mm is placed in a roaster, and the temperature is controlled at 400°C for drying and dehydration, and the drying time is controlled at 30 minutes; the dried and dehydrated material is dried Grind to below -0.074mm, add 0.5% cuprous chloride, 3% lime, 20% magnesium chloride, 1% calcium chloride, 20% coke and mix with the material, then use a pelletizer to prepare pellets pellets with a diameter of 8 mm; dry the pellets with a water content of less than 8% in a roasting furnace at a drying temperature of 200°C; dry the pellets with a water content of less than 8% Put the raw material into ...
Embodiment 2
[0034] The ore sample comes from an iron ore containing 34.23% iron, 0.66% sulfur, 0.72% phosphorus, 20.68% silicon dioxide, and 11.22% aluminum oxide in a certain area of Yunnan. The iron in the sample is mainly siderite, and it also contains some Iron minerals such as red limonite, pyrite, iron silicate, etc.
[0035] Crush the iron ore to less than 3mm; put the ore crushed to less than 3mm into a roaster, control the temperature at 600 ° C for drying and dehydration, and control the drying time at 60 minutes; dry-grind the dried and dehydrated materials To below -0.074mm, add 3% cuprous chloride, 15% lime, 50% magnesium chloride, 3% calcium chloride, 40% coke and mix with the material, and prepare pellets with a pellet machine Pellet material with a diameter of 8mm; dry the pellet material with a water content of less than 8% in a roasting furnace at a drying temperature of 300°C; dry the pellet material with a water content of less than 8% Put it into a roasting furnace f...
Embodiment 3
[0043] The ore sample comes from an iron ore containing 41.25% iron, 0.87% sulfur, 0.98% phosphorus, 21.55% silicon dioxide, and 14.25% aluminum oxide in a certain area of Shaanxi. The iron in the sample is mainly siderite, and it also contains some Iron minerals such as red limonite, pyrite, iron silicate, etc.
[0044] Crush the iron ore to less than 3mm; place the ore crushed to less than 3mm into a roaster, control the temperature at 500°C for drying and dehydration, and control the drying time to 30 minutes; dry-grind the dried and dehydrated materials To below -0.074mm, add 2% cuprous chloride, 10% lime, 40% magnesium chloride, 2% calcium chloride, 35% coke and mix with the material, and prepare pellets with a pellet machine Pellet material with a diameter of 8mm; dry the pellet material with a water content of less than 8% in a roasting furnace at a drying temperature of 250°C; dry the pellet material with a water content of less than 8% Roasting in a roasting furnac...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More