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
Vertical shaft blasting Dosage
Intelligent Decision System for Vertical Shaft Blasting Scheme
2021年11月16日 Aiming at the above key technical problems, a design method of vertical shaft blasting scheme based on the integration of knowledge base and artificial intelligence (AI) is proposed in thisverify the blasting results The results show that using large diameter empty hole blasting technology in vertical shaft construction of frozen hard rock section can significantly improve 1579 Hard rock deep hole cutting blasting technology in vertical 2015年5月30日 The results show that using large diameter empty hole blasting technology in vertical shaft construction of frozen hard rock section can significantly improve the speed of vertical shaftHard Rock Deep Hole Cutting Blasting Technology in 2010年3月1日 Based on cutting principle and technology development of vertical blasthole cut by stage and deck in vertical shaft excavation, combined with the merits of middle space A new method of cutblasting for vertical shaft excavation and its
A new method of cutblasting for vertical shaft excavation and its
2010年2月10日 This new cut blasting method is provided with the advantages of high blasthole using ratio, big cavity bulk, low rate of chunk, even lumpiness, and relatively high energy using deep hole blasting of vertical shafts, the multistage cut blasting technology can significantly improve the borehole utilization rate and increase the singlecycle footage to ensure efficient Numerical analysis of deep hole multistage cut blasting of vertical This paper proposes the Analytic Hierarchy Process (AHP) based on Particle Swarm Optimization (PSO) to obtain the weights of each index for evaluating the blasting quality of shafts, then Intelligent Quality Evaluation System for Vertical Shaft Blasting and In this regard, this paper proposes a deep hole multistage cut blasting technology of vertical shaft Preliminary engineering practice shows that such cut blasting technology can make Numerical analysis of deep hole multistage cut blasting of vertical
Intelligent Decision System for Vertical Shaft Blasting Scheme
2021年11月16日 It is difficult to determine the blasting parameters scientifically and reasonably using traditional methods Aiming at the above key technical problems, a design method of At present, the blasting method that adopts in the vertical blast working mainly contains two kinds: a kind of is segment blast, promptly in construction, vertical is divided into several sections, carries out blasting in groupsThe advantage of blasting in groups is that the single hop of explosive all is reduced with total dose, thereby blasting harm significantly reduces; Vertical shaft blasting tunneling method Google PatentsRecently, cutting forms of vertical shaft deep hole blasting are parallel cylindrical cutting and inclined tapered cutting In inclined tapered cutting blasting, energy concentrated and crushing gangue throwing high The crushing gangue often collapse sinking machinery equipment in well, moreover, drilling precision of1579 Hard rock deep hole cutting blasting technology in vertical shaft Due to the high in situ stress of the deep rock mass and the restraining effect of the surrounding rock, the deep hole blasting of vertical shaft faces the problems of low borehole utilization rate and poor blasting effect In this regard, this paper proposes a deep hole multistage cut blasting technology of vertical shaftNumerical analysis of deep hole multistage cut blasting of vertical
Shaft Sinking McConnell Dowell
shafts, McConnell Dowell delivers outstanding shaft and access solutions for our customers and the community Capability, Capacity and Creativity and equip both vertical and decline shafts of various diameters to depths of more than 2000 metres, through all types of rock formations2021年1月19日 In order to address problems of shaft lining vibration and surrounding rock damage caused by blasting of freezing shaft, shaft lining vibration was monitored in real time and frozen walls shaft lining vibration and surrounding rock damage control after 2015年3月28日 Taking twocircle vertical blast holes in vertical shaft blasting as prototype, tests for three millisecond blasting models with twocircle vertical blast holes were conducted to investigate the Blasting vibration measurement and analyses of millisecond blasting vertical distance are analyzed, and the regression analysis of shaft blasting vibration energy is carried out according to the principle of dimensional analysis The results show that the main frequency band of the shaft blasting vibration signal is distributed within 0–300 Hz, and the variation trend of blastingResearch on Energy Characteristics of Shaft Blasting Vibration
Study on the influence of vertical shaft blasting with frozen clay
Abstract: When the vertical shaft excavation is constructed by freezing technology,the frozen clay blasting will have a vibration effect on the shaft wall,and it is easy to cause rupture of shaft wall,resulting in safety accidents Taking the frozen clay blasting excavation project of Zhaogu No 2 Mine as the research background,the ANSYS/LSDYNA numerical simulation software was The invention relates to a smooth blasting method for vertical shaft tunneling in a high stress environment, and belongs to the technical field of mine development The method comprises the steps of arranging a central hole in the central position of blast hole arrangement of the vertical shaft rock in a high stress environment, arranging a plurality of layers of annular main blast CNA Smooth blasting method for vertical shaft 1018, 1122 Vertical Shaft Brick Kiln Article April 2021 DOI: 1024321/23938307 CITATIONS 0 READS 23 the development industry is blasting and in this manner, the interest in building materials has expanded manifolds The interest in 1018, 1122 Vertical Shaft Brick Kiln SSRNvertical shaft blasting scheme based on the integration of knowledge base and artificial intelligence (AI) is proposed in this paper Firstly, the characteristic weight of factors affecting the Intelligent Decision System for Vertical Shaft Blasting Scheme
Blasting Vibration Measurement In the Frozen Rock of the
2005年5月18日 ABSTRACT Artificial freezing method is the main means of shaft sinking in unsteady thick alluvium of underground mine, and drilling and blasting method for frozen rock and soil is the valid means to improve the sinking speed In order to guarantee construction security and improve the sinking speed, blasting vibration test is necessary Topbox vibration monitor Due to the high in situ stress of the deep rock mass and the restraining effect of the surrounding rock, the deep hole blasting of vertical shaft faces the problems of low borehole utilization rate and poor blasting effect In this regard, this paper proposes a deep hole multistage cut blasting technology of vertical shaftNumerical analysis of deep hole multistage cut blasting of vertical 2011年10月16日 ABSTRACT The vertical shaft in Xuandong No 2 coalmine is about 8320m in depth and its frozen foundation rock is 365m high According to the increased strength of the frozen bedrock, the blasting parameters are adjusted and the technique of whole section detonating in one time is adopted The new empirical formula concerning the calculation of the The Application of Smooth Blasting for Freezing Rock in Vertical Shaft2020年12月17日 On this basis, the shaft blasting maximum rock fragmentation control model based on double hidden layer BP neural network is proposed vertical shafts and complementary air ducts is adopted toControl of Rock Block Fragmentation Based on the Optimization of Shaft
Ultradeep largesection vertical shaft onetime blasting forming
2022年12月5日 The invention discloses an ultradeep largesection vertical shaft onetime blasting forming method based on electronic detonators The method includes the steps that firstly, the maximum blasting cubic capacity of each time of blasting is determined according to the section area, the rock expansion coefficient and the bottom compensation space size; then, Application of Electronic Deck Charge Blasting Method to a Vertical Shaft Excavation JaeHong Kim, HeeDo Kim, JunWon Lee, GabSoo Kim, YoungBok Son, JaeHoon Kim Abstract This case study deals with an excavation blasting carried out at “SooseoPyeongtek ‒ section construction site”in the vicinity of residential areaApplication of Electronic Deck Charge Blasting Method to a Vertical 2021年6月1日 With the development of refined construction processes, higher requirements are put forward for shaft blasting construction technology Unreasonable blasting construction technology will enhance Numerical analysis of deep hole multistage cut blasting of vertical Due to the high in situ stress of the deep rock mass and the restraining effect of the surrounding rock, the deep hole blasting of vertical shaft faces the problems of low borehole utilization rate and poor blasting effect In this regard, this paper proposes a deep hole multistage cut blasting technology of vertical shaft Preliminary engineering practice shows that such cut blasting Numerical analysis of deep hole multistage cut blasting of vertical
Impact of excavation footage on vertical shaft lining Nature
2024年10月27日 Vertical shafts are crucial for water diversion and transportation 7,8,9They are used extensively in the mining and transportation sectors, serving purposes such as smoke exhaust ventilation 10 YU J X, LI Z Z, GUO M,et alStudy on the influence of vertical shaft blasting with frozen clay on the vibration of shaft wall[J]Journal of Henan Polytechnic University(Natural Science) ,2023,42(1):2634 doi: 1016186/ki16739787 Received: 2021/07/05 Revised: 2022/01/20 Published: 2023/01/25 Study on the influence of vertical shaft blasting with frozen Study on the influence of vertical shaft blasting with frozen clay The invention provides a vertical shaft deephole sectional blasting method The method carries out 5m deephole controlled blasting by combining a peripheral hole and outercircle shallow hole combination shaft wall quality control technology, a spaced doublepipe forward and reverse charging technology and a twostage straight hole sectional slotting A Vertical shaft deephole sectional blasting To provide a theoretical basis for water prevention and control methods and reasonable supporting techniques for vertical shaft, and to ensure the shaft construction to pass the sandstone aquifer safely and rapidly, numerical simulation using dynamic damage constitutive model, which was a userdefined constitutive modules in FLAC3D, a lagrangian analysis code Numerical Simulation of BlastingInduced Damage in Grouting
Shaft Sinking: Drill and Blast Vertical Shaft Sinking Machines
2016年1月1日 "The mining industry is on an ever accelerating path to complete mechanization As companiesutilize more sophisticated and efficient methods of blasting, a more thorough look should begiven to the pros and cons of mechanized shaft sinking Historically, Vertical Shaft SinkingMachines (VSSM) have been capital intensive, making it hard to enter lowest bidder 合作机构 中国矿业大学(北京)力学与建筑工程学院 139; 中国矿业大学（北京）力学与建筑工程学院岩土工程系 24; 中国矿业大学 4; 中国矿业大学力学与建筑工程学院 4; 郑州华辕煤业有限公司 3; 中国矿业大学(北京)资源与安全工程学院 2; 安徽理工大学化学工程学院 2; 北方工业大学土木工程学 杨立云 百度学术The invention discloses a safe and efficient blasting construction method for a shaft wall beam nest of a vertical shaft, which comprises the following steps: a plurality of blast holes distributed in an i x j matrix are formed in a main explosion area at the center of the beam nest, wherein i and j are both odd numbers and are more than or equal to 3; and taking the most central blast hole CNB Safe and efficient blasting Google Patents2023年11月4日 vertical shaft construction Application Practice of Drilling and Blasting Technology in Vertical Shaft Construction Taking the shaft construction of No 2 return air shaft project as an example, based on the analysis of the mechanical conditions of the surrounding rock of the shaft, the paper puts forward the design principles of drilling and blasting parameters Application Practice of Drilling and Blasting Technology in Vertical
CNB System and method for predicting blasting
The invention discloses a system and a method for predicting blasting vibration speed of a side wall of a vertical shaft based on a simply supported beam model, wherein the system comprises the following steps: the system comprises a plurality of vibration speed sensors, a first shaft side wall, a second shaft side wall and a plurality of vibration sensors, wherein the plurality of Liyun YANG Cited by 776 of China University of Mining and TechnologyBeijing Read 48 publications Contact Liyun YANGLiyun YANG Doctor of Engineering China University of Mining DOI: 101109/ACCESS2022 Corpus ID: ; Intelligent Quality Evaluation System for Vertical Shaft Blasting and Its Application @article{Ma2022IntelligentQE, title={Intelligent Quality Evaluation System for Vertical Shaft Blasting and Its Application}, author={Xinmin Ma and Zhenyu Chen and Pan Chen and Yuan Jin and Yue Wang and Liyun Intelligent Quality Evaluation System for Vertical Shaft Blasting At present, the blasting method that adopts in the vertical blast working mainly contains two kinds: a kind of is segment blast, promptly in construction, vertical is divided into several sections, carries out blasting in groupsThe advantage of blasting in groups is that the single hop of explosive all is reduced with total dose, thereby blasting harm significantly reduces; Vertical shaft blasting tunneling method Google Patents
1579 Hard rock deep hole cutting blasting technology in vertical shaft
Recently, cutting forms of vertical shaft deep hole blasting are parallel cylindrical cutting and inclined tapered cutting In inclined tapered cutting blasting, energy concentrated and crushing gangue throwing high The crushing gangue often collapse sinking machinery equipment in well, moreover, drilling precision ofDue to the high in situ stress of the deep rock mass and the restraining effect of the surrounding rock, the deep hole blasting of vertical shaft faces the problems of low borehole utilization rate and poor blasting effect In this regard, this paper proposes a deep hole multistage cut blasting technology of vertical shaftNumerical analysis of deep hole multistage cut blasting of vertical shafts, McConnell Dowell delivers outstanding shaft and access solutions for our customers and the community Capability, Capacity and Creativity and equip both vertical and decline shafts of various diameters to depths of more than 2000 metres, through all types of rock formationsShaft Sinking McConnell Dowell2021年1月19日 In order to address problems of shaft lining vibration and surrounding rock damage caused by blasting of freezing shaft, shaft lining vibration was monitored in real time and frozen walls shaft lining vibration and surrounding rock damage control after
Blasting vibration measurement and analyses of millisecond blasting
2015年3月28日 Taking twocircle vertical blast holes in vertical shaft blasting as prototype, tests for three millisecond blasting models with twocircle vertical blast holes were conducted to investigate the vertical distance are analyzed, and the regression analysis of shaft blasting vibration energy is carried out according to the principle of dimensional analysis The results show that the main frequency band of the shaft blasting vibration signal is distributed within 0–300 Hz, and the variation trend of blastingResearch on Energy Characteristics of Shaft Blasting Vibration Abstract: When the vertical shaft excavation is constructed by freezing technology,the frozen clay blasting will have a vibration effect on the shaft wall,and it is easy to cause rupture of shaft wall,resulting in safety accidents Taking the frozen clay blasting excavation project of Zhaogu No 2 Mine as the research background,the ANSYS/LSDYNA numerical simulation software was Study on the influence of vertical shaft blasting with frozen clay The invention relates to a smooth blasting method for vertical shaft tunneling in a high stress environment, and belongs to the technical field of mine development The method comprises the steps of arranging a central hole in the central position of blast hole arrangement of the vertical shaft rock in a high stress environment, arranging a plurality of layers of annular main blast CNA Smooth blasting method for vertical shaft
1018, 1122 Vertical Shaft Brick Kiln SSRN
1018, 1122 Vertical Shaft Brick Kiln Article April 2021 DOI: 1024321/23938307 CITATIONS 0 READS 23 the development industry is blasting and in this manner, the interest in building materials has expanded manifolds The interest in