低品位锡尾矿机柱联合浮选实验研究

蔺慧杰; 蓝卓越; 熊文良; 张丽军; 陈达; 刘能云; 周政

doi:10.3969/j.issn.1000-6532.2023.04.023

低品位锡尾矿机柱联合浮选实验研究

1.
中国地质科学院矿产综合利用研究所，中国地质调查局稀土资源应用技术创新中心，自然资源部战略矿产综合利用工程技术创新中心，四川　成都　610041

2.
昆明理工大学国土资源工程学院，云南　昆明　650093

基金项目: 中国地质调查局地质大调查项目（DD20211235）；四川省中央引导地方科技发展专项项目（2022ZYD0126）；中央在川高校院所重大科技成果转化项目任务合同书（2022ZHCG0124）

详细信息

作者简介: 蔺慧杰（1993-），男，助理工程师，研究方向为矿山资源综合利用

通讯作者: 蓝卓越（1976-），男，副教授，研究方向为矿山资源综合利用

中图分类号: TD952

收稿日期: 2022-10-28

刊出日期: 2023-08-25

Column Combined Flotation of Low Grade Tin Tailings

1.
Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Rare Earth Resource Application Technology Innovation Center of China Geological Survey, Technology Innovation Center for Comprehensive Utilization of Strategic Minerals Resources, Ministry of Natural Resources, Chengdu, Sichuan, China

2.
Faculty of Land Resources Engineering of Kunming University of Science and Technology, Kunming, Yunnan, China

More Information

Corresponding author: Lan Zhuoyue, xingdakg@126.com

Received Date: 28 October 2022

Publish Date: 25 August 2023

摘要

摘要:
这是一篇矿物加工工程领域的论文。为提高锡尾矿中的资源利用效率，在传统浮选工艺的基础上，提出机柱联合浮选的工艺流程。浮选柱进行粗-扫选作业，发挥其大处理量，高富集比优势；浮选机做精选作业，可提高流程的整体稳定性。本次实验结果表明，在给矿品位0.28%的前提下，经机柱联合浮选后可得到品位15.26%，回收率61.13%的锡石富中矿，再经摇床作业后精矿品位达到40.87%，可达到6等品锡精矿的指标要求。实验表明本流程对于低品位、细粒锡石矿有较好的适应性，同时可减少选厂的建设用地，具备一定推广意义。
- 矿物加工工程 /
- 锡尾矿 /
- 机柱联合 /
- 细粒回收 /
- 高效富集
Abstract:
This is an essay in the field of mineral processing engineering. In order to make more efficient use of the resources in cassiterite tailings, we put forward the process flow of combined operation of flotation column and flotation machine on the basis of traditional flotation process. Among them, the flotation column for roughing and scavenging operations can give full play to the advantages of large processing capacity and high enrichment ratio of the flotation column; the selection operation of flotation machine can improve the overall stability of the process. Through this experiment, it is shown that under the premise of feeding ore grade of 0.28%, cassiterite middlings with grade of 15.26% and recovery rate of 61.13% can be obtained by combined flotation of flotation column and flotation machine. After shaking table operation, the concentrate grade reaches 40.87%, which can reach the index of grade 6 tin concentrate. The test results show that this process has good adaptability to low-grade and fine-grained cassiterite ore, and can reduce the construction land of the concentrator, which has certain promotion significance.
- Mineral processing engineering /
- Tin tailings /
- Machine column joint /
- Fine particle recovery /
- Efficient enrichment

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图 1 条件实验浮选流程

Figure 1.

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图 2 闭路实验流程

Figure 2.

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表 1 试样主要化学成分分析结果/%

Table 1. Analysis results of the main chemical component of sample

Sn	S	Fe	Al₂O₃	MgO	CaO	SiO₂
0.284	0.24	1.40	10.35	3.72	9.46	50.53

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表 2 锡在各粒级的分布结果 /%

Table 2. Results of Sn distribution in each grain level

产品粒级/mm	产率/%	品位/%	分布率/%
+0.074	16.90	0.056	3.75
-0.074+0.045	32.87	0.059	7.69
-0.045+0.031	17.80	0.070	4.94
-0.031	32.43	0.650	83.62
给矿	100.00	0.25	100.00

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表 3 浮选柱条件实验结果

Table 3. Test results of flotation column conditions

充气量/ (L/min)	产品名称	Sn品位/%	产率/%	回收率/%	分选层/精矿泡沫层/cm
1.6	粗精矿	5.42	1.93	36.70	70/70
	尾矿	0.123	98.07	63.30
	原矿	0.285	100	100
1.8	粗精矿	6.16	2.47	53.58	70/80
	尾矿	0.111	96.86	46.42
	原矿	0.284	100	100
2.0	粗精矿	5.54	2.59	51.43	80/65
	尾矿	0.105	97.31	48.57
	原矿	0.279	100	100
2.2	粗精矿	5.37	2.63	50.26	70/70
	尾矿	0.123	98.07	49.74
	原矿	0.281	100	100

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表 4 浮选柱部分实验结果

Table 4. Test results of flotation column

产品名称	产率/%	品位/%	回收率/%
粗精矿	3.35	5.75	67.04
尾矿	96.65	0.098	32.96
给矿	100.00	0.287	100.00

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表 5 浮选机部分实验结果

Table 5. Test results of flotation machine

产品名称	产率/%	品位/%	作业回收率/%
精矿	32.84	15.26	87.14
中矿	67.16	1.10	12.86
给矿	100.00	5.75	100.00

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表 6 摇床实验结果

Table 6. Test results of shaking

产品名称	产率/%	品位/%	作业回收率/%
精矿	24.27	40.87	65.01
富中矿	75.73	7.05	34.99
给矿	100.00	15.26	100.00

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