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Metal Mine ›› 2021, Vol. 50 ›› Issue (01): 120-134.

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Study Progress and Prospect on Prevention and Control Technology of Blasting Dust and Poison in Metal Mine Stope

JIN Longzhe,GUO Jingzhong,LI Gang,WANG Tianyang,LIU Jianguo,OU Shengnan,GONG Qi,WANG Jiaying   

  1. 1. School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China;2. Safety Engineering College,North China Institute of Science and Technology,Langfang 065201,China;3. Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.,Maanshan 243000,China;4. Huawei National Engineering Research Center of High Efficient Cyclic Utilization of Metallic Mineral Resources Co.,Ltd.,Maanshan 243000,China;5. State Key Laboratory of Safety and Health for Metal Mines,Maanshan 243000,China
  • Online:2021-01-15 Published:2021-01-18

Abstract: The prevention and control of blasting dust and poison in metal mines is an important approach to strengthen enterprises' awareness of environmental protection and to build green mines,and a inevitable demand to achieve high quality development of mine.In order to systematically study the problems and solutions of blasting dust and poison in metal mines,a comprehensive review of physical and chemical characteristics of dust,dust removal technology of water-stemming,online monitoring,and dust removal with cloudy were carried out.It is show that there are many disadvantages of dust and poison prevention and control in metal mines,such as deficiency of fundamental study and attention,imperfection of the mechanism of dust and poison prevention and control,few of prevention and control techniques,backward on grading supervision,exposure limits,testing methods and other standards,low precision of monitoring equipment of dust,the insufficient of promotion and application of new technologies and equipment for the prevention and control of dust and poison.It was reported that strengthen investigation of dust removal technology of water-stemming and cloud and online monitor of blasting dust and poison, which is an effective measure for prevention and control of blasting dust and poison at this stage.At the same time,the key study directions in the future were proposed: ① The relationship between physicochemical characteristics and wettability of typical metallic mineral dust should be studied to provide basic data and technical support for the physical and chemical elimination of blasting dust and poison;② Through the study on disinfection mechanism and formulation optimization of multicomponent water-stemming,blasting dust and poison could be reduced from the source;③ Utilize the reduction mechanism and formula optimization of roadway cloud removal technology to purify the dust and poison in the polluted air flow and reduce the air pollutants discharged to the ground;④ Online dust monitoring technology and equipment that has the advantages of high-precision,multi-point continuous measurement,resistant to pollution,and long service life,and high-precision dust monitoring system which can resist moisture,impact and other complex environments of mine should be studied and developed, so as to realize automatic and intelligent of dust monitoring;⑤ Carry out top-level design and development plans for standards,improve the system of compulsory dust monitoring standards,speed up the integration and reduction of standards as well as the work of "establishing,revising and abolishing" of standards,so as to improve their pertinence and applicability; ⑥Pay attention to the training of workers on practical operational ability from front-line,strengthen the study on the applicability of new technologies and equipment in the site,increase the popularization and application of new technologies and equipment,so as to improve the working environment of metal mines.

Key words: metal mine, blasting dust and poison, online monitoring, multi-component water stemming, roadway cloudy removal