2014年3月31日· The purpose of this research was to evaluate the production rate (PR) and cutting performance of surface miners (SM)Surface Miners: Evaluation of the Production Rate and Cutting Performance Based on Rock Properties and Specific Energy In: ROCK MECHANICS AND ROCKSurface Miners: Evaluation of the Production Rate and Cutting
2015年7月1日· The cutting performance of a surface miner (L) may be estimated from cuttability index (CI), the rated capacity of the machine (M c) and a factor for specific5 行· 2013年1月1日· In general, surface miners are capable of cutting rocks with a strength range lying in betweenRock excavation using surface miners: An overview of
2017年3月1日· The critical parameters influencing the production, diesel consumption and pick consumption of SM in Indian coal and limestone mines, were identified through artificial neural network (ANN)2019年6月11日· Surface miner drum width depth of cut cutting speed cutting force tensile strength Sections Surface miners are being increasingly used in opencastDesign Methodology for Cutting Drum, Power Rating and
2016年5月1日· Cutting force exerted by picks is a key factor for final production Rock parameters effect the mechanical excavation and in turn production [2] Thus, study of operating parameters ofThis recent study reports an investigation on the effectiveness of the cutting performance models applied to the Surface Miner Wirtgen 2200SM operation in a limestone quarry,Rock excavation by continuous surface miner in limestone quarry
2015年7月1日· The key performance indicators of surface miners, namely production, diesel and pick consumption were considered for the overall operational and economic2022年10月17日· Application of surface miners has increased phenomenally all around the world for rock excavation in varied rock mass conditions There are numerous models of surface miners with wide range of specifications Machine specifications, specially, power and drum dimensions (drum width and diameter) as well as operating parameter, ie,Influence of Cutting Drum Specifications on the Production Performance
2020年9月1日· A field study was conducted at Sonepur Bazari opencast mine, Eastern coalfields (ECL), West Bengal, India for evaluating the cutting operation and performance of a 2200 SM surface miner underA methodology for designing cutting drum of surface miner to achieve production of desired chip size A PRAKASH1,*, V M S R MURTHY2, K B SINGH1, C KUMAR3 and L A KUMARASWAMIDHAS3 1Central Institute of Mining and Fuel Research, Dhanbad , India 2Department of Mining Engineering, Indian School of Mines, Dhanbad ,A methodology for designing cutting drum of surface miner to
2019年5月28日· The purpose of this research was to evaluate the production rate (PR) and cutting performance of surface miners (SM) based on rock properties and specific energy (SE)2013年1月31日· Cutting speed of surface miner, cutting force developed by individual pick and number of active picks coming in contact with the rock in respect to depth of cut under varied tensile strength can(PDF) Performance simulaton of surface miners with varied
2012年1月1日· Surface Miner Based on the cutting principle, surface miner can be categorized as – (i) multibucket cutting drum located in front of the machine ( eg Krupp Surface Miner), (Dey and Sen, 2008) [9] These limitations are– • performance of surface miners depends largely on the length of cut area,Applicability of a surface miner (SM) must be based on a careful assessment of intact rock and rock mass properties A detailed literature review was made to identify different parameters influencing the performance of various types of cutting machines deployed in different parts of the world The critical parameters influencing the production, dieselHierarchy of parameters influencing cutting performance of surface
2017年3月1日· ance analysis of surface miner in Indian c oal mines – a case study In Conference on Emerging Trends in Mining and Allied Industries, NIT, Rourkela, 2–3 February 2008, pp 57–652018年7月1日· Surface miners are being increasingly used in opencast mines owing to their ability to excavate thin bands selectively Evenminor variations in intact rock and rock mass parameters can adverselyDesign Methodology for Cutting Drum, Power Rating and
CUTTING PERFORMANCE OF THE WIRTGEN 2200 SM SURFACE MINER Unconfined compressive strength (MPa) Windrowing, 22m cutting drum, loose rock Conveyor loading, loose rock Conveyor loading, finejointed rock Conveyor loading, coarsejointed rock Conveyor loading, massive rock A single operation instead of four – with the 2200 SMguarantees maximum cutting performance and precise cutting depths in the mining of hard rock A powerful diesel engine combined with a heavyduty belt drive contributes to the machine’s rapid progress in hard rock Optimum transmission of power is ensured by the highly effi cient mechanical cutting drum drive Our miners are capable of selectiveThe World of Wirtgen Surface Miners
2016年9月1日· A study was conducted on rock samples collected from two limestone mines located in India where surface miner (SM), a popular drum type cutting machine, was used for excavation of rock2011年4月9日· The surface miner was developed in the mid70s improving the design concept of the road milling machine, which were popularly used to cut the old road surface during road construction (Dey 1999)The surface miner essentially comprises a cutting unit, disposing unit (windrowing/conveyor loading) and propelling unit (Fig 1a) TheReview of Cuttability Indices and A New Rockmass Springer
14 Cutting trenches, surfaces and embankments with precision 15 15 Production of tunnel floors 16 16 Rehabilitation of haulroads 17 2 Which Surface Miner for which job? 19 21 Performance ranges of Surface Miners in easily crushable material 20 22 Assesment of rock cuttability 21 23 Which Surface Miner for which job? 年1月1日· The production performance of a few surface miners used in Indian coal mines (Central Coalfields Limited (CCL), South Eastern Coalfields Limited (SECL), Mahanadi Coalfields Limited (MCL) and Singareni Collieries Company Limited (SCCL)) in the year 2007–2008 is shown in Table 6 Cutting performance assessment modelsRock excavation using surface miners: An overview of some
2023年1月20日· Still, the current study covers the milling types of surface miners whose cutting drum is located between the four crawler tracks in the centre of the machine Furthermore, it explains the cutting system of a surface miner and reviews previous studies conducted by different researchers to assess the surface miner’s production2015年7月31日· Surface miner ensures layerbylayer cutting and crushing of powergrade coal simultaneously in opencast mines This technology is proven efficient, environmentfriendly and economical in IndianA new rock cuttability index for predicting key performance
2012年12月1日· A field study was conducted at Sonepur Bazari opencast mine, Eastern coalfields (ECL), West Bengal, India for evaluating the cutting operation and performance of a 2200 SM surface miner under2021年12月15日· Surface miner for rough terrain Surface miner for soft rock Surface Miner in India surface miner india Surface miner mechanically driven cutting drum Surface miners cutcrush and load the material in one single pass Surface Miners Optimize Coal Minining The Surface Miner advantages The surface miner is a mobileTypes of Surface Miner in India Constro Facilitator
2012年12月31日· The surface miner's cutting system consists of a rotating cutting drum to simultaneously cut Filed studies on the performance of SM2100 surface miner working in limestone and coal mines wasHighperformance surface miners for reliable, selective extraction of raw materials by direct loading, sidecasting, or cuttoground Raw materials are extracted and crushed in situ in purest quality in a single operation – without drilling and blasting, and with minimal environmental impact The 2,750 mm cutting drum unit with a cutting280 SMi Surface Miners and Cross Application Miners | Wirtgen
2012年3月13日· Types of Surface Miners (Wirtgen) Cutting Cutting Model Production Specific Use / Applicability Width Depth SM Up to The compact and highly maneuverable 19m 015m machine to mine coal ,2020年6月3日· The size of coal chips, produced during coal cutting operations, is of prime importance from the viewpoint of feed size desired by power plants Proper chip size in cutting can eliminate primary crushing and inturn save energy Achieving a designated size of chip is intimately linked with the drum design inter alia the wrap angle, line spacing ofA methodology for designing cutting drum of surface miner
Surface Miner 2500 SM Vario in Japan Wirtgen’s 220 SM 38/220 SMi 38 surface miner selectively mines raw materials up to a cutting depth of 350 mm and a uniaxial compressive strength of 35 MPa Maximum Performance in Soft Rock With a cutting width of 22 m and a cutting depth of up to 300 mm, the 220 SM/ 220 SMi can extract raw materials2022年6月28日· Featuring innovative technologies that allow high machine utilization rates and maximum productivity, the 280 SM (i) is a highperformance surface miner designed for the reliable and selective extraction of primary resources by direct loading, sidecasting, or cuttoground Raw materials are extracted and crushed in situ in a single operationWirtgen announce new 280 SM(i) surface miner | AggNet
WIRTGEN 2200 SM 38 surface miner for use in, for example, Indian coal mines resulted in a significant increase in productivity in comparison with the standard model The miner’s track record shows an increase in cutting performance by 25% and simultaneous reduction of the specific diesel consumption by 15% 25% more cutting performance2023年2月1日· This recent study reports an investigation on the effectiveness of the cutting performance models applied to the Surface Miner Wirtgen 2200SM operation in a limestone quarry, Palimanan, CirebonImpact of Surface Miner Utilisation on Production Efficiency in
FOCUSING ON CUSTOMER BENEFITS Increasing the cutting performance of the 2200 SM 38 by up to 25 % in comparison with the standard model means a huge step forward It was achieved by a meticulous analysis of the cutting and transport processes This resulted in the surface miner being subjected to a comprehensive process of improvement The2015年7月1日· The performance of surface miners can be judged better by utilizing the combination of intact rock and rock mass parameters, available machine specifications and operating conditions Therefore, performance predictive models were developed by considering all these relevant parameters to estimate production, diesel and pickA new rock cuttability index for predicting key performance indicators
RESEARCH COMMUNICATIONS Hierarchy of parameters influencing cutting performance of surface miner through artificial intelligence and statistical methods A Prakash1,* and V M S R Murthy 2 1 CSIRCentral Institute of Mining and Fuel Research, Dhanbad 826 015, India 2 Department of Mining Engineering, Indian School of Mines,Cutting performance assessment models Table 7 The performance, the cutting tool consumption and the eco Cutting rate with respect to rock strength nomic operation of surface miner is significantly affected byRock excavation using surface miners: An overview of
2023年5月5日· Longitudinal ultrasonic vibrationassisted highspeed dry milling (LUVAHSDM) is adopted to improve the cutting performance and surface quality of Ti6Al4V (TC4) Multifaceted comparisons are presented in terms of milling force, milling temperature, tool wear, 3D surface roughness, and residual stress, utilizing AlCrN,Cutting speed of surface miner, cutting force developed by individual pick and number of active picks coming in contact with the rock in respect to depth of cut under varied tensile strength can be determined through these studies to help the end user to decide suitable parameters for operational controlA study into the influence of intact rock and rock mass properties
Wirtgen’s 220 SM 38/220 SMi 38 surface miner selectively mines raw materials up to a cutting depth of 350 mm and a uniaxial compressive strength of 35 MPa Maximum Performance in Soft Rock With a cutting width of 22 m and a cutting depth of up to 300 mm, the 220 SM/ 220 SMi can extract raw materials up to a uniaxial compressiveThe cutting performance of a surface miner (L) may be estimated Further, the critical parameters influencing the performance of from cuttability index (CI), the rated capacity of the machine (Mc) surface miners in terms of production, diesel and pick consump and a factor for specific cutting condition (k) that varies from 05 to tion were arrived at(PDF) A new rock cuttability index for predicting key performance
Cutting speed of surface miner, cutting force developed by individual pick and number of active picks coming in contact with the rock in respect to depth of cut under varied tensile strength can be determined through these studies to help the end user to decide suitable parameters for operational control Surface miners are being increasingly used inKeywords: Surface miner, intact rock, rock mass, artificial neural network INTACT rock, rock mass and machine parameters are broad key parameters that play a key role in cutting performance Cutting performance is generally evaluated by various parameters such as, production, specific energy, chip size of cut material, cutting force, pick wear,Hierarchy of parameters influencing cutting performance of surface
i NATIONAL INSTITUTE OF TECHNOLOGY 2015 CERTIFICATE This is to certify that, the thesis entitled “PERFORMANCE ASSESSMENT OF SURFACE MINER IN INDIAN COAL MINES” submitted by Sri Seethiraju Eswar Nandan in partial fulfilment of the requirements for the award of Master of Technology (Dual degree) in2016年2月19日· performance of a surface miner, generall y, depends on cutting in edges, curves, turning rad ius and length of working area, truck cha nging ti me, which can be(PDF) Applicability of Surface Miner in Open Cast Mines
Thus, perfor User of the surface miners always finds difficulty in mance of a surface miner, generally, depends on cutting selecting suitable machines (for a mine) and also in in edges, curves, turning radius and length of working choosing their operating mode in short term (day to day area, truck changing time, which can be controlled by the operation) and
