MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Mine blasting accident case Baidu Library
Statistical analysis of large accidents in China's coal mines in 2016
To better understand the characteristics and trends of current coal mine accidents, 29 cases of significant accidents occurred in China in 2016 are introduced first in this manuscript; then, the Flyrock and failure to secure the blasting area dominate blastingrelated accidents in mining, especially in surface mining Blasting accidents in the mining industry tend to result in critical FLYROCK ISSUES IN BLASTING 百度学术2024年1月1日 This study investigated the use of a modeled accidentprevention framework for combining accident case data to construct an accident causation network for targeted data Accident casedriven study on the causal modeling and prevention 2020年4月24日 In Bhurkunda ‘A’ Colliery of Central Coalfields Limited (CCL), in Ramgarh District of Jharkhand State, a fatal accident occurred on 5th April, 2017, where one blasting An Investigation to Assess the Cause of Accident due to Springer
Analysis of coal mine safety accident features in China, 2017–2022
2024年6月1日 Coalrelated accidents are prevalent in China, often attributed to the intricate geology and challenging working conditions of mines This study seeks to determine the On 5th April 2017, one fatal accident of a blasting helper took place at Bhurkunda ‘A’ colliery (Balkudra Quarry of Outsourcing Patch) by flying fragment duringAn Investigation to Assess the Cause of Accident due to Springersmall and medium openpit mine harmful effects of blasting blasting damage safety criterion preventive measureAnalysis of harmful blasting effects from the small and 百度学术2004年1月1日 Problem: Blasting is a hazardous component of surface mining Serious injuries and fatalities result from improper judgment or practice during rock blasting This paper Blasting injuries in surface mining with emphasis on flyrock and
Research on the causal mechanism of a rock burst accident in a
2023年12月15日 Based on the disaster characteristics and the geoconditions at the scene, in this study, the occurrence mechanism of a serious rock burst accident that occurred in the 2023年11月14日 Recent accident statistics emphasize the ongoing hazards, necessitating a proactive approach Mitigation strategies encompass optimizing blast design, establishing Understanding The Risks of Flyrock in Mine and Quarry Blasting2019年2月2日 In order to effectively prevent coal mine accidents, we selected the most serious type of accident in coal mines—gas explosions—as the research object Based on the accident causation model (24Model), we propose an The Accident Path of Coal Mine Gas Explosion Based blasting accidents The available statistical data on occurrence of the gold mine blasting accidents was a basis for further considerations of the blasting accident model, as well as a case study related to the development of the blasting control and monitoring system, which was installed in the Guilaizhuang Gold Mine in Shandong Province of BLASTING CONTROL AND MONITORING SYSTEM DURING BLASTING
Development and Occurrence Mechanisms of FaultSlip 百度学术
Development and Occurrence Mechanisms of FaultSlip Rockburst in a Deep Tunnel Excavated by Drilling and Blasting: A Case Study In this work, an extremely intense faultslip rockburst case, with a local magnitude of 23, observed in a deep tunnel in southwestern China was introduced as a case study The rockburst caused a large economic 2022年7月16日 Artisanal and smallscale gold mining (ASGM) employs 14–19 million people globally There is limited research on accidents, injuries, and safety in Zimbabwe’s ASGMAccidents, Injuries, and Safety among Artisanal and SmallScale Mine safety issues in quarry industry: case studies of recent fatal accidents in Sri Lanka In DMDOK Dissanayake CL Jayawardena (Eds), Proceedings of International Symposium on Earth Resources Management Environment 2021 (pp 4045)Mine safety issues in quarry industry: case studies of recent fatal 2015年8月24日 This paper discusses such stability problem of Jayant opencast mine which experienced a accident on December, 2008 Slided dump moved towards the highwall to bury five mine workers Deployment of Slope failure of waste rock dump at Jayant opencast mine, India: A case
Underground Mine Gas Explosion Accidents and Prevention
2021年1月1日 Request PDF Underground Mine Gas Explosion Accidents and Prevention Techniques – An overview Mine gas explosions present a serious safety threat in the worldwide coal mining industry it has Surda Copper Mine Blasting Fumes Accident 5 Fatal 1984 Date of the Accident : 04/04/1984 Owner : Hindustan Copper Ltd Number of persons killed : 5 Place : Singhbhum Copper Belt, Jharkhand This accident occurred in No10 level stope which was worked by the “postpillar method” The method ofMajor accidents in the Indian Coal Mines (19522005)2024年2月14日 Gas accidents represent a crucial domain of coal mine safety research, as they result in substantial property damage, environmental pollution, and even loss of life compared to other types of accidents Particularly, human factors play a significant role in Human factors analysis of coal mine gas accidents based on 《煤矿爆破》创刊于1983年，双月刊，是由中国煤炭科工集团有限公司主管、中煤科工集团淮北爆破技术研究院有限公司主办的专业学术期刊。据2019年6月期刊官网显示，《煤矿爆破》编辑委员会拥有委员24人， 设主编1人、总编辑1人、副主编 2人。据2019年6月11日中国知网显示，《煤矿爆破》总被下载 煤矿爆破 百度百科
Mine safety issues in quarry industry: case studies of recent fatal
Mine safety issues in quarry industry: case studies of recent fatal accidents in Sri Lanka In DMDOK Dissanayake CL Jayawardena (Eds), Proceedings of International Symposium on Earth Resources Management Environment 2021 (pp 4045)Statistical characteristics about accidentrelated factors such as space, time, volatile ratio of coal dust, ignition sources, and accident categories were analyzed Some special conclusions have been achieved For example, most dust explosions were found to have occurred only in certain provinces and during certain months of the yearA statistical analysis of coal mine accidents caused by coal dust accident occurred on 5th April, 2017, where one blasting helper employed in the mine died due to hit by a flying fragment generated from the blasting operation The accident took place when blasting was conducted in an overburden bench using site mixed emulsion (SME) explosives Blasthole diameter was 160 mm, and depths of holes were 60 mAn Investigation to Assess the Cause of Accident due to2017年4月15日 Bender (1999) defined production blasting as the type of blasting that is designed to fragment a predetermined volume of rock; widely spaced holes are drilled and fired in a controlled delay sequence(PDF) ROCK BLASTING FOR MINING ResearchGate
Coupling Technology of Deep‐Hole Presplitting Blasting and
2021年3月23日 To solve the problems of coal seam gas content, high gas pressure, developed faults, complex structure, poor coal seam permeability, and high outburst risk in the 8 th Mine of Pingdingshan Coal Mining Group, the method of combining theoretical analysis and field engineering tests were was for coupling technology of deephole presplitting blasting and 2022年4月1日 The roof of the coal seam of LW7313 is mostly dominated by the sandstone layer and mudstone layer, and Pratt’s coefficient of the rock is 47~150 (Figure 1(b))The coal seam is overlaid successively by sandy mudstone (average thickness of 47 m) that forms the immediate roof, medium sandstone (average thickness of 161 m) in the main roof, etc and which are Mechanism and Energy Evolution Characteristics Wiley Online Library1992年1月1日 Ok Tedi Mine is a high production open pit porphyry copper mine located high in the Star mountains of Papua New Guinea The mine produces an average of 160 000 tonnes of ore and waste daily at a 1:1 strip ratio Full scale drilling and blasting began in 1988, prior to which time all material was ripped and dozedDrilling and blasting procedures at Ok Tedi underwent Cost Effective Blasting A Case Study OneMineThe prevalence of accidents and injuries was 350% and 257% Accidents associated with experiencing injuries included mine collapses and underground trappings The major injury risk factors were digging, blasting, being male, being 18–35 years old, crushing, and the underground transportation of workers and materialsAccidents, Injuries, and Safety among Artisanal and SmallScale
(PDF) ORELM: A Novel Machine Learning Approach for Prediction of
2019年8月2日 PDF Blastinduced flyrock is a hazardous and undesirable phenomenon that may occur in surface mines, especially when blasting takes place near Find, read and cite all the research you need Download scientific diagram Blasting accident causes in coal surface mining (1978–2001) from publication: Flyrock phenomena and area security in blastingrelated accidents In both the Blasting accident causes in coal surface mining (1978–2001)2022年2月1日 For instance, some mines in South Africa and Canada have reached a depth of 30004000 m (Counter, 2014;LippmannPipke et al, 2011) However, in China, the mining depth is mostly below 8001100 m (PDF) Review of preventive and constructive measures 2011年1月1日 ing at studied mine site 31 Causes of Flyrock Fly rock in open pit mine blasting usually means that it is unexpected projection of rock mass from blasting beyond blast area Blast area is an area in which shock waveflying , material or gases from an explosive may cause injury to person There are numerous factors which determine the blast Flyrocks – Detection and Mitigation at Construction Site in Blasting
An Analysis Of Surface Coalmine Blasting Accidents
2003年1月1日 During the past decade, approximately 5 billion pounds of explosives were used annually in the United States Most of this quantity of explosives was used by the mining industry, with coalmining being the dominant application for explosives Considering the large amount of explosives used, the accident safety record for the mining industry has improved significantly Blasting KG Hosahalli Granite Quarry on 08111996; Saunda D West Colliery on 18091984; Surda Copper Mine on 04041984; Shivrajpur Manganese Mine on 6121910; Accidents in Coal Mines; Accidents in NonCoal Mines; Reports and Court of Enquiries in Mining Disasters Paul Committee Report (Source: Mining Accidents2015年5月8日 Download Citation Causes of Coal Mine Accidents in the World and Turkey Occupational accidents and occupational diseases are common in the mining sector in Turkey and throughout the world The Causes of Coal Mine Accidents in the World and Turkey2020年2月5日 The mine pressure database is used to store mine pressure monitoring information and mine pressure observation index information, as well as time and space information of working face mining, and maintain realtime synchronization with the comprehensive early warning database through the interface 4 APPLICATIONS OF THE Applications of online integrated system for Wiley Online Library
Flyrocks – Detection and Mitigation at Construction Site in Blasting
2012年12月1日 Due to the occurrence of frequent accidents in Indian mines, the Directorate General of Mine Safety (DGMS) have prohibited the use of large hole diameters in boulder blasting to prevent the 2019年5月18日 China’s coal mine production situation is grim and various types of accidents occur frequently, and gas explosion accidents are the highest incidence of coal mine accidents The authors selected 200 gas explosion accidents of coal mine enterprises in recent years, and extracted a large number of workers’ unsafe behaviorsRisk Assessment of Miners’ Unsafe Behaviors: A Case Study of Gas 2019年2月6日 It is followed by gas explosion (19% accidents and 17% fatalities) and mine blasting (13% accidents and 16% fatalities) A positive correlation (071) exists between accidents and fatalitiesOvercoming Mine Safety Crisis in Pakistan: An Appraisal2021年9月1日 Based on the text mining of 307 coal mine accident investigation reports, combined with chisquare statistical dimensionality reduction and word cloud analysis methods, 52 accident causes, such as the falsification of the security monitoring system and insufficient staffing of safety inspections, were identified as the leading causes of coal mine accidentsConstruction and analysis of a coal mine accident causation network
OneMine Studies on Blasting Accident – A Case Study
2008年1月1日 Number of mine accidents occurred in Indian surface mines are due to poor quality of explosives and blasting accessories Amlori open cast project is one of the major coal producing projects in India Standard drilling and blasting parameters are used to achieve desired productivity of the mine 150 and 260 mm diameter blast holes are used for blasting in coal 2019年10月24日 Outburst (hereinafter referred to as “outburst”) is regarded as a potential hazard to be managed in gassy coal seams around the world 17 Since the firstrecorded outburst happened in Isaac Coal Mine in Lule coalfield in Experimental investigations of stress‐gas pressure 2012年1月1日 The blasting process remains a potential source of numerous environmental and safety accidents The majority of these accidents were contributed to the flyrock and lack of blast area securityEnvironmental and Safety Accidents Related to 2023年10月26日 The study was conducted to develop controlled blasting patterns for safe blasting operations within the blasting zone of 50–100 m from the nearby dwellings In order to minimize ground vibrations, three methods (1) Reduced burden and spacing with shorter hole depth, (2) Modified decoupled charged using plastic pipes and (3) Prefracture line using Controlled Blasting Within Danger Zone of 500 M From Dwelling
Blasting Safety: Avoiding Blasting Disasters SafetyCulture
2023年12月13日 Safety Precautions Before Blasting A “BlasterinCharge” (BIC) must oversee all the blasting operations This person is held accountable for completing all tasks associated with these activities Additionally, a thorough inspection of new blasting sites is necessary for hazards and environmental impactsCoal bed gas has been considered a major mine hazard since the first documented coal mine gas explosion in 1810 in the United States [1] and Blasting Accidents in Mines and Methods for Determining Mine Atmosphere Status Chapter; pp 111–121; Cite this chapter; Download book PDF In the case of gas chromatography, Gasrelated, Fire, and Blasting Accidents in Mines and Methods 2010年8月17日 4 Important causes of accidents Roof/side fall accidental fall of roof or side at the time of excavation PRIMARY Winding accident in the course of raising or lowering coal or man in shaft Haulage accident in the course of raising or lowering coal by tubs NEXT Dumper accidents associated with dumper – wheeled vehicles for carrying coal with tipper mechanism Accidents in coal mines PPT Free Download SlideShare2016年3月25日 In pursuit of this objective, the study encompassed a comprehensive analysis of 175 round blasting events carried out at the Sungun Copper Mine, incorporating key factors such as burden, spacing Assessment of backbreak due to blasting operation in
Fatal gas explosion accidents on Chinese coal mines and the
Although the total death toll due to various accidents in China's coal mining industry has decreased in recent years, coal mine gas explosion is still occupied the main proportion of major accident and threatening miners' lives Mining industry Unsafe behavior Case study Gas explosion 引用走势 辅助 Various explosives and perimeter control blasting techniques have been developed in order to minimize rock damage associated with the conventional drilling and blasting operations Mining engineers have little or no control over the rock mass characteristics, but proper selection of blast design and explosives parameters results in blasts producing minimum disturbance to the Assessment of blasting quality for lateral development in