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黄金科学技术 ›› 2021, Vol. 29 ›› Issue (1): 120-128.doi: 10.11872/j.issn.1005-2518.2021.01.076

• 采选技术与矿山管理 • 上一篇    

基于虚拟现实技术的磨矿分级工艺自主设计系统的开发

郑高华(),王雨琦,王毓华(),卢东方,郑霞裕   

  1. 中南大学资源加工与生物工程学院,湖南 长沙 410083
  • 收稿日期:2020-04-17 修回日期:2020-07-02 出版日期:2021-02-28 发布日期:2021-03-22
  • 通讯作者: 王毓华 E-mail:easynzh@163.com;wangyh@csu.edu.cn
  • 作者简介:郑高华(1996-),男,山东日照人,硕士研究生,从事基于虚拟现实技术的磨矿分级设计及配置系统研究工作。easynzh@163.com
  • 基金资助:
    中南大学中央高校基本科研业务费专项资金“基于VR技术的典型磨矿工艺设计系统开发”(2019zzts704)

Development of a Grinding-Classification Process Auto-design System Based on Virtual Reality Technology

Gaohua ZHENG(),Yuqi WANG,Yuhua WANG(),Dongfang LU,Xiayu ZHENG   

  1. School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China
  • Received:2020-04-17 Revised:2020-07-02 Online:2021-02-28 Published:2021-03-22
  • Contact: Yuhua WANG E-mail:easynzh@163.com;wangyh@csu.edu.cn

摘要:

为探讨虚拟现实技术应用于矿物加工设计的可行性,基于虚拟现实平台——虚幻引擎4的蓝图系统开发了桌面式磨矿分级工艺自主设计系统。根据磨矿分级工艺设计过程的具体特点,将设计过程中的经验公式、经验数据及设备选型计算的人工智能算法转化为虚幻引擎蓝图系统的语言模型,较好地解决了磨矿分级工艺设计过程中的经验数据、经验公式以及设备选型参数和选型方法的处理问题。基于虚拟现实技术的磨矿分级工艺设计系统,根据用户提供的原始数据和指标,通过后台计算设计出最终方案。本系统的开发,证明采用虚拟现实技术处理磨矿分级工艺设计问题是可行的,为后续实现基于虚拟现实技术的磨矿车间设备配置设计创造了条件。

关键词: 矿物加工设计, 磨矿分级工艺, 虚拟现实技术, 系统开发, 虚幻引擎

Abstract:

To discuss the feasibility of the application of virtual reality technology in mineral processing design,and to solve the problems of long design cycle,low design efficiency and boring design process,which still exist in traditional mineral processing design,a desktop auto-design system of the grinding-classification process was developed in combination with the rapidly rising virtual reality technology.The development of this system takes virtual reality technology platform Unreal Engine 4 as the carrier,and relies on its Blueprint system and Unreal Motion Graphics UI Designer editor to build the whole process.In the process of development,focusing on the empirical formulas,empirical data,equipment selection parameters and equipment selection methods in the traditional grinding and classification process design,the blueprint programming language was used to transform them into a computer-based independent design method.The empirical formulas with complex structure,variable parameters and repeated use are converted into Blueprint system function or macro,the corresponding data of the table are stored as Blueprint array,the value range data are fitted into interpolation function,power function and other mathematical models,and then all of them are stored in the Event Chart of the Blueprint system.Simulation designer in the traditional design methods,using Blueprint design language to write algorithm procedures.After programming and testing,the system is compiled and packaged with Visual Studio 2019,and the Unreal Editor is used to release the Windows version for users to use.According to the original ore data and ore-dressing indexes input by the user,the system recommends the appropriate grinding process,and then,according to the recommended grinding classification process,carries out the calculation of ore volume and pulp indexes,grinding and grading equipment selection calculation,auxiliary equipment selection calculation,etc.,and finally forms a reasonable grinding classification process design scheme.In the process of system design,users can also reasonably change the conditions in the process according to the design requirements.The development of this system has proved that the application of virtual reality technology in mineral processing design is feasible.It has created conditions for the following development of the grinding workshop configuration design system based on virtual reality technology,and also provided useful reference for virtual reality technology to integrate into the mineral processing field.

Key words: mineral processing design, grinding-classification process, visual reality technology, system development, Unreal Engine

中图分类号: 

  • TP391.9

图1

磨矿分级工艺自主设计系统架构"

图 2

磨矿分级工艺自主设计系统功能结构"

图3

高堰式螺旋分级机计算函数“SET_D_FG”"

图4

函数“SET_D_FG”的调用"

表1

球磨机直径校正系数K2及K2数组的构建"

构建数组现厂生产磨机直径D′/mm设计磨机直径D/mm
9001 2001 5002 1002 7003 2003 6004 0004 500
a09001.001.191.341.661.852.072.102.262.41
a11 2000.841.001.141.401.631.741.761.912.04
a21 5000.740.871.001.221.451.521.551.691.80
a32 1000.600.710.811.001.171.251.301.411.49
a42 7000.510.610.700.851.001.091.171.231.30
a53 2000.470.570.640.800.921.001.071.121.19
a63 6000.460.550.620.760.860.941.001.061.12
a74 0000.440.520.590.710.810.890.951.001.06
a84 5000.420.490.560.670.770.840.890.931.00

表2

螺旋分级机粒度校正系数K2和K2′取值"

分级溢流粒度/mmK2K2

1.17

0.83

0.59

0.42

0.30

0.20

0.15

0.10

0.074

0.061

0.053

0.044

2.50

2.37

2.19

1.96

1.70

1.41

1.00

0.67

0.46

3.00

2.30

1.61

1.00

0.72

0.55

0.36

图5

螺旋分级机粒度校正系数曲线"

图6

一段闭路磨矿球磨机选型算法流程"

图7

两段全闭路磨矿球磨机选型算法流程"

图8

β1的编程计算过程"

表3

磨矿机给矿中-0.074 mm含量(%)与给矿粒度之间的关系"

给矿粒度/mm-0.074 mm含量占比/%
难碎性矿石中等可碎性矿石易碎性矿石
40235
20568
1081015
5101520
3152325

图9

β1的3种数学模型"

图10

磨矿分级工艺流程计算测试结果"

图11

磨矿分级工艺设备选型测试结果"

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