What are tailings stones
Tails ore stones are waste that has no potential generated during mineral mining, and are usually composed of residual particles after ore crushing and screening. With the recent rise in popularity of environmental protection issues, tailings treatment technology has become one of the hot topics across the network. This paper combines hot data in the past 10 days to analyze the definition, hazards and treatment plans of tailings stones.
1. Definition and source of tailings stones
According to data from the China Mining Federation, the total tailings volume in 2022 has exceeded 6.2 billion tons. The main sources are as follows:
| Source Type | PercentageExample Minerals |
|---|
| Metal ore screening | 47%Iron ore, copper ore |
td>Non-metallic mining| 38% | Phosphate ore, graphite |
|
| Precipitation of ore dressing wastewater | td>15%
IIidum>2. Related Recent Hot Events
According to the network-wide public opinion monitoring (data as of November 2023), the discussion on related topics:
| platform | Discussion volume (next 10 days) | | |
|---|
| Weibo | Lentils 12,000 | #Taistry Pollution Control TL# |
| Zhihu | 6800+ | Tailing recycling technology |
| Today's headlines | 9500+ | Violation stacking cases
3. Three major characteristics of tailings stones
1.Physical characteristics: Particle size 0.1-5mm accounts for more than 75%, and the density is 2.6-3.2g/cm³
Shouldn't 2.Chemical properties: May contain heavy metals such as lead and arsenic (see the typical ingredients in the table below)
| Element | Content range | Exceed standard |
|---|
| Silicon dioxide | 45-erbium75% | -- |
| Sulfide | 0.3-12% | cc>0_1% |
3.Environmental risks: It is easy to cause veld landslide (23 tailings pond accidents around the world in the past five years)
4. Recycling and Utilization Technology_Type
According to the latest policy documents of the Ministry of Industry and Information Technology, the following processing methods are recommended:
| technology | Utilization rate | Application areas |
|---|
>| Pressing the brick | 12-35% | Building Materials |
| Micro powder blending material | gger45% | Concrete |
| Recycling of valuable metals | 8-15% | metallurgy |
Note: The data comes from the "National Comprehensive Utilization White Paper (2023)".
<請問>Five Archie months_Hot Proposals
1. On November 15, a company in Hebei used tailings stones to pave rural roads to reduce costs by 40 ale
2. On November 5, Chile passed a new regulation (Act No. 21456) requiring the 202owen mine dam to be equipped with an AI monitoring system
Conclusion:The treatment of tailings stones is not only a technical issue, but also a key link in the sustainable development. With the rise of _ESG investment, related technologies will continue to gain market attention.
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