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黄金科学技术 ›› 2019, Vol. 27 ›› Issue (1): 121-128.doi: 10.11872/j.issn.1005-2518.2019.01.121

• •    

广西某银矿选矿流程精益化管理研究

唐善茂1,2,刘明凯1,王新宇2   

  1. 1. 桂林电子科技大学,广西 桂林 541010
    2. 广西壮族自治区地质矿产勘查开发局,广西 南宁 530023
  • 收稿日期:2018-04-27 修回日期:2018-08-13 出版日期:2019-02-28 发布日期:2019-03-19
  • 作者简介:唐善茂(1965-),男,湖北仙桃人,教授,从事地勘经济发展管理与研究工作。tsm@guet.edu.cn

Research on the Lean Management of a Silver Ore Dressing Process in Guangxi

Shanmao TANG1,2,Mingkai LIU1,Xinyu WANG2   

  1. 1. Guilin University of Electronic and Technology,Guilin 541010,Guangxi,China
    2. Guangxi Bureau of Geology and Mineral Prospecting and Exploitation,Nanning 530023,Guangxi,China
  • Received:2018-04-27 Revised:2018-08-13 Online:2019-02-28 Published:2019-03-19

摘要:

矿山选矿阶段作为矿石的主要加工处理过程,是影响矿石精矿品位和矿山经济效益的重要因素,选矿流程管理不当会造成矿石精矿品位降低和矿山经济效益的流失。通过分析广西某银矿山选矿流程现状,运用鱼刺图分析法列举该流程面临的主要问题,并进一步利用解释结构模型ISM(Interpretive Structure Modeling)流程分析法找出瓶颈影响因素。模型分析结果表明,该银矿选矿流程存在的最主要问题是精益理念不强、现场管理不当和原矿石品位低,并针对模型分析结论提出该银矿选矿流程精益化管理建议。

关键词: 银矿, 选矿流程, 鱼刺图, 解释结构模型, 精益化管理

Abstract:

With the deepening of supply-side structural adjustment of mining economy, the resource reserves are decreasing and the environmental protection requirements are becoming increasingly stringent.The traditional quantitative,technology-oriented mining production activities is adjusted to the level of technology and management mode innovation.The scientific management mode of mining and dressing production, mining rights, mineral products trading and other production value-added activities in the traditional mining industry is also constantly being innovated and optimized. As the main processing process of ore, the mineral dressing stage is an important factor that affects the grade of ore concentrate and the economic benefit of mine.Improper management of ore dressing process will lead to the decrease of ore concentrate grade and the loss of mine economic benefit.Lean management of mine beneficiation process is of great significance.The research object is the second largest independent silver mine in China.With more than 20 years of resource extraction and separation, and because located in the disputed area of the nature reserve, the mine is obviously restricted by reserves and environmental protection.The ore dressing production process is relative perfect and the scientific management mode is applied. In order to further find out the reasons for the loss of economic benefits of the mine,provide reference for the lean management of the mine beneficiation process,the mine dressing production process was selected as the research object.The process of ore dressing production was express by using flow chart,the problems existing in the process of ore dressing was solicited with Delphi method,then the main problems in this process were listed by fish-prick-graph analysis method.Interpretive Structure Modeling is further used to distinguish the influencing factors at different levels,and identify the bottleneck factors.The results show that,the low grade of raw ore and the improvement of tailings treatment will lead to the loss of benefit directly.Low efficiency of automatic operation and equipment aging degree will affect tailings treatment significantly.The main problem in the process is that the lean idea is not strong and the field management is not good.Based on the conclusion of model analysis,some suggestions on lean management of the silver ore dressing process are put forward.Firstly,constructing lean core ideaSecondly,carrying out the scientific field management method in practice.

Key words: silver ore, dressing process, bones diagram, interpretive structure modeling, lean management

中图分类号: 

  • C931

图1

广西某银矿选矿流程图"

图2

选矿作业现场图"

表1

广西某银矿选矿流程存在问题分析"

类别 问题 原因分析
精益理念不强 选矿工作人员未接受系统的精益理论培训,缺乏精益管理和生产思维
技术培训不到位 部分工序工作人员不能适应当下岗位,未进行必要的岗前培训
工作积极性不高 选矿流程自动化程度较高,工人空闲较多,容易产生懈怠情况
设备老旧程度高 设备工作年限较长,未及时更换
设备维护频率低 现场缺乏设备检修人员,维护主要由设备厂家进行
原矿石品位低 该矿开采年限较长,资源储量有限,开采出来的原矿石品位逐年降低
原矿石氧化程度高 矿石品位降低,保有银矿石含氧化矿较多
浮选药剂效果差 添加药剂主要为黑药和黄药,因添加比例不当、矿石复杂性导致浮选效率降低
各车间缺乏沟通 破碎、磨矿、浮选各车间相互独立,不能及时交换信息
现场管理不当 选矿作业管理人员现场管理缺乏一定的科学性
自动化作业效率低 由于各车间设备处理来料效率存在不同,流程化作业会导致部分设备空闲
车间环境差 车间修建年代早,未进行翻修和改善
现场器具摆放随意 车间内大型设备固定摆放,其他器具按使用习惯摆放较为随意
尾矿处理有待加强 尾矿处理设备老化,工人环保理念较为陈旧

图3

选矿作业主要问题的鱼刺图分析"

图4

各因素相互影响关系图"

表2

可达集合与先行集合及其交集层级分解"

i M P i Q P i M P i)∩QP i
1、4 1,4 1,4 1,4
0 0 0,1,2,3,4,5,6 0
1 0,1,2,4,5,6 1,4 1,4
2 0,2,5,6 1,2,4 2
3 0,3 3 3
4 0,1,2,4,5,6 1,4 1,4
5 0,5,6 1,2,4,5 5
6 0,6 1,2,4,5,6 6
i M P i Q P i M P i)∩QP i
1 1,2,4,5,6 1,4 1,4
2 2,5,6 1,2,4 2
3 3 3 3
4 1,2,4,5,6 1,4 1,4
5 5,6 1,2,4,5 5
6 6 1,2,4,5,6 6
i M P i Q P i M P i)∩QP i
1 1,2,4,5 1,4 1,4
2 2,5 1,2,4 2
4 1,2,4,5 1,4 1,4
5 5 1,2,4,5 5
i M P i Q P i M P i)∩QP i
1 1,2,4 1,4 1,4
2 2 1,2,4 2
4 1,2,4 1,4 1,4
i M P i Q P i M P i)∩QP i

图5

选矿效益流失主要原因层级图"

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