In case, deployment of draglines in horizontal tandem and two shovels for extraction of coal is a necessity, width of the dragline cut has to be kept more for smooth and safe operation. A thesis submitted for the degree of master of philosophy at. Development of dragline excavation model for operation planning figure 1. In the case study mine, speed factor of dragline operation computed as 0. Dragline operators control dragline excavators at construction sites. Construction planning, equipment, chapter draglines and. Excluding the infrequent walking, a dragline spends its major operational time by.
To help maximize your investment in a cat dragline, we provide onsite operator training assessments, onsite electrical and mechanical maintenance training, and a variety of computerbased training options. Accidents relating to dragline operation most often result from slips and falls, being caught in or struck by moving parts, and standing or walking near the machine while it is in operation. Obtain, interpret and clarifyconfirm work requirements in the form of shift briefings, handover details or work orders before proceeding. Dragline operators must complete a manufactureroffered safety training program containing, at minimum, the requirements for heavy equipment safety training described in 321 fw 1. This relates to the draglines walking sequence, that is, to where the dragline should stand, dig and dump to, and to when and where it moves. The present disclosure relates to a work machine, in particular to a cableoperated excavator, for dragline bucket operation, comprising a dragline bucket taken up by a hoist rope, wherein the attachment can be retracted by means of at least one dragline for carrying out the dragging movement and a dragline guide for guiding the dragline is arranged at the work machine, wherein the dragline. Discrimination of cycle time components one of the main difficulties in recording a dragline s cycle time is discriminating successive components from each other.
The lowstress way to find your next dragline operator job opportunity is on simplyhired. Horizontal tandem operation when leading and lagging dragline is deployed 2496 having annual production of 3. The dragline boom protrudes from the front of the dragline house. Operating delay process delay a dragline stoppage associated with the operational. The primary objective of this study was to determine levels of noise and ground vibration as a function of distance from draglines operating under various meteorological conditions. Diploma or equivalent and a valid drivers license required. Mar, 2012 operation of draglinethe dragline has a long boom with a bucket capacity rangingfrom 15 to 50 cum. We have produced a series of videos covering many different aspects of dragline operations including dig methods, principles and practices, dozer techniques and advanced bucket loading techniques. The irst dragline of any kind to be successfully equipped with ac igbt drive systems, we developed this superior technology for the sole purpose of making your workday more productive, predictable, and most importantly, safe. Such overloads arise from poor manual operation of the machine, often due to. Many draglines built since the 1970s are still original in configuration and utilize original component technology. Development of dragline excavation model for operation.
Cross marine projects provides a wide range of mechanical and hydraulic dredging, dragline, jetting and trenching services in some of the most difficult and ecologically sensitive marine environments with years of dredging experience, cross marine will save your project thousands of dollars by matching the right dredging equipment to your geological. The influence of stripping bench height performance of draglines in. Access, interpret and apply compliance documentation relevant to conducting of dragline operations 1. The draglines repositioning is a large component of its operation. The dragline can dig through loose to medium compacted soil. There are separate drums on the basic unit for each of these cables so that they may be coordinated into a smooth operation. The dragline is a versatile attachment capable of a wide range of operations at and belowground level. Improving dragline productivity and increasing reliability. In order to improve the efficiency of a dragline operation it is necessary to have a thorough understanding of the characteristics of the digging method and the sequencing of the excavation operations. Msha instruction guide series ig 43 onthejob training. A special interlock control syste m is an option available. Available in any file format including fbx, obj, max, 3ds, c4d. Most crawler cranes, with an added winch drum on the front, can act as a dragline. If you use a dragline for craning operations, the operator and equipment must meet the standards cited above.
The tandem operation of draglines is in use in some of the major indian opencast coalmines owing to the favourable geomining conditions, technical suitability, efficiency and economic viability. Excluding the infrequent walking, a dragline spends its major operational time. The influence of cut width on the performance of draglines in horizontal and vertical tandem operation by varying the cut width and keeping all the parameters constant. Access, interpret and apply compliance documentation relevant to conducting of dragline operations. Cybermine dragline simulators thoroughtec simulation. Development of dragline excavation model for operation planning. This research project dragline maintenance engineering explores the maintenance strategies for large walking draglines over the past 30 years in the australian coal industry. Many different sizes of draglines may be used, depending on the type of operation and application.
Us20150184357a1 work machine for dragline bucket operation. Dragline excavator 3d models for download turbosquid. Cybermine dragline simulators are delivered with a highly realistic, operating, 3d simulated mine world, complete with overburden, spoils and artificially intelligent simulated mining equipment such as bulldozers, shovels, diggers and light vehicles to support the. It will provide the platform for future research to commence by giving a presentation of current practices specific to the operation of a dragline. Offering the highest levels of overburden removal productivity at the lowest total cost per tonne ton, the 8750 is the flagship model of the cat dragline product line. The 5 calibers to claim the most powerful handgun in the world title reupload duration. An additional option is the redundant control system, which allows restricted operation of the machine in the event of a failure on the electronic. Cross marine projects dredge and dragline operations. This eliminates the need for hauling units, thus reducing the cost of handling the material. A simulation model for selecting suitable digging method for a dragline operation, in 25th international symposium on the application of. Proper placement, inspection and protection of power cable.
Operation of draglinethe dragline has a long boom with a bucket capacity rangingfrom 15 to 50 cum. Draglines are used in surface metal and nonmetal mining for overburden and ore removal, and for reclamation. View thousands of crane specifications on freecranespecs. Generally, dragline productions can be broken down into cycles. Pdf of dragline free ebooks pdf, doc, ppt, pps, xls and etc. Pdf productivity analysis of draglines operating in. A dragline cycle is the amount of time the dragline takes to fill drag, swing, dump and return to the dig. This video is a starting point for new trainees to learn how draglines work and how they are operated. Pdf dragline maintenance engineering semantic scholar. Noise and ground vibration monitoring related to dragline operations in phosphate mining. A tradeoff exists as to whether to remain digging at a particular. Dragline digging methods in australian strip mines a survey. Cross marine projects provides a wide range of mechanical and hydraulic dredging, dragline, jetting and trenching services in some of the most difficult and ecologically sensitive marine environments.
This reduces fuel consumption and minimizes wear of the free fall brake. The paper presents a good amount of data for 4draglines operating in one of the major. Access, interpret and apply geological and survey data required to. A thesis submitted for the degree of master of philosophy. It swings normally between 90 to 120 degrees and side castthe material in to the decoaled area. The interlock control system for dragline operations ensures powered lowering with drag winch, while lifting of the bucket with the hoist winch. Since deployment and operation of a dragline in different modes affect its productivity, it will be necessary to study the effects on. The biggest advantage of the dragline over other machines is its long reach for both digging and dumping.
To investigate the effect of different parameters on the performance of dragline in horizontal and vertical tandem operation which are follows as i. Noise and ground vibration monitoring related to dragline. It is designed for power lifting of the dragline bucket without using the drag winch brake. Discrimination of cycle time components one of the main difficulties in recording a draglines cycle time is discriminating successive components from each other. Such overloads arise from poor manual operation of the machine, often due to driver fatigue over long shifts. The first dragline of any kind to be successfully equipped with ac igbt drive systems, we developed this superior technology for the sole purpose of making your workday more productive, predictable, and most importantly, safe. The outcomes of this study will be used to educate engineers in the field of dragline maintenance engineering. Use filters to find rigged, animated, lowpoly or free 3d models. Operation of a dragline the excavating cycle is started by swinging the empty bucket to the digging position, while at the same time slacking off the dragand the hoist lines. It can swing in 360 degrees, after dragging the loose materialbelow its level. Construction planning, equipment, chapter draglines. Pdf productivity analysis of draglines operating in horizontal and. Dragline in tandemvertical or horizontal dragline operation in vertical tandem may be considered in the following conditions.
They are experts in controlling the equipment and coordinating activities with other construction workers on the site using hand and audio signals, in order to ensure safety and keep the project moving forward at an efficient pace. Pdf the tandem operation of draglines is in use in some of the major indian opencast. Department of mining engineering for allowing me to carry on the present topic dragline performance study in indian coal mines and later on for his inspiring guidance. Department of mining engineering for allowing me to carry on the present topic dragline performance study in indian coal mines and later on for his inspiring guidance, constructive criticism and valuable suggestions throughout this project work. Development of dragline excavation model for operation planning haoquan liu, michael kearney, kevin austin the university of queensland, australia h. In addition to learning operation and maintenance procedures, mining dragline operators must complete federally mandated safety training, which is typically provided by employers. There is no comprehensive study evaluating the various digging methods currently in use. In this light, the present paper is an endeavor to analyze availability and utilization of dragline operations.
Dragline excavator 3d models for download, files in 3ds, max, c4d, maya, blend, obj, fbx with low poly, animated, rigged, game, and vr options. For instance, swing to and dumping appear as two successive parts of a single operation as do swing back and repositioning. For instance, swing to and dumping appear as two successive parts of a. Dragline definition of dragline by the free dictionary. The nomenclature of the dragline usually called as 2499which means 24 cum. Slips and falls occur most often during maintenance, repair, or cleanup, and when mounting and dismounting the machine. The operators manual provided with the machine, and the mines operating procedures, should also be. Accidents relating to dragline operation most often result from slips and falls. A dragline excavator is a piece of heavy equipment used in civil engineering and surface mining. Onsite andor classroom training for dragline operators and mine operation supervisors. High capital outlay for dragline requires efficient operation to obtain low cost of ob removal. Five years work experience in a dragline environment preferred. Draglines and clamshells ence 420 assakkaf slide no.
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