GB/T 39988-2021 in English
VALIDTechnical specification for total tailings paste production and disposal
- Issued on:2021-05-21
- Implemented on:2022-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 39988-2021 |
| Document status: | VALID |
| Title in English: | Technical specification for total tailings paste production and disposal |
| Title in Chinese: | 全尾砂膏体制备与堆存技术规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2021-05-21 |
| Implemented on: | 2022-04-01 |
| ICS Classification: | 73.020-Mining and quarrying |
| Chinese Classification: | D15-Mining |
| Professional Classification: | GB-National Standard |
| Related Keywords: | total tailings paste production
standard technical indicators parameter requirements test methods water technical specification paste preparation disposal introduction analysis |
| Related Topics: | system
tail english tail Preparation Tail + paste Paste memory technology tail sand a tail pile up GBT39988 GB/T 39988-2021 The latest technical specifications for full tailing sand paste filling Safe storage of phosphogypsum preparation |
《GB/T 39988-2021全尾砂膏体制备与堆存技术规范》由TC379（全国黄金标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
| Technical indicators | Parameter requirements | Test methods |
|---|---|---|
| Water bleeding rate | 5-10% | GB/T 50080 |
| Yield stress | 30-100Pa | Appendix A Rheometer method |
| Fine particle content | ≥15% (＜20μm) | GB/T 50123 |
Key technologies for paste preparation
The standard stipulates that the deep cone thickener is used as the core equipment, and the flocculant solution needs to be diluted twice to a concentration of 0.01%-0.1%. The optimal parameters of the flocculant are determined through static sedimentation experiments, and key data such as the thickener processing capacity are obtained through dynamic experiments.
Discharge process selection guide
Central discharge case
An iron mine uses a standpipe discharge system. When the dam body infiltration line exceeds the safety value, it switches to a surrounding discharge system, reducing the burial depth of the infiltration line from 2.1m to 3.5m, meeting the design requirements.
Implementation suggestions
1. It is recommended to use a thin layer dry stack system (<15cm) in arid areas
2. Fine-grained tailings require a chemical dust suppressant spraying device
3. It is recommended to use a isolation layer + soil cover composite solution for closed reservoir reclamation
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