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Saturday, August 1, 2020 | History

2 edition of Computer modeling of continuous miner cutting systems for dust generation found in the catalog.

Computer modeling of continuous miner cutting systems for dust generation

Bruce D. Hanson

Computer modeling of continuous miner cutting systems for dust generation

by Bruce D. Hanson

  • 52 Want to read
  • 36 Currently reading

Published by U.S. Dept. of the Interior, Bureau of Mines in Washington, D.C .
Written in English

    Subjects:
  • Coal-mining machinery -- Testing -- Computer programs.,
  • Mine dusts -- Analysis -- Computer programs.

  • Edition Notes

    Includes bibliographical references.

    Statementby B.D. Hanson and W.W. Roepke.
    SeriesReport of investigations ;, 9245, Report of investigations (United States. Bureau of Mines) ;, 9245
    ContributionsRoepke, Wallace W.
    Classifications
    LC ClassificationsTN23 .U43 no. 9245, TN813 .U43 no. 9245
    The Physical Object
    Pagination21 p. :
    Number of Pages21
    ID Numbers
    Open LibraryOL2150721M
    LC Control Number88607918

    Dust control can be intimidating at first encounter. Many questions may be swirling around in your mind, trying to figure out what exactly you need or how it works. Let’s take a look at the entry point of dust management and answer some common questions about dust control and DustBoss® systems. 10 FAQs about Dust Continue Reading. Room-and-pillar mining has obvious geometric constraints, i.e. Cut #5 cannot be mined until Cut #1 and Cut #3 have been mined. Safety regulations dictate other clear constraints, i.e. Cut #1 and Cut #3 must also be bolted before Cut #5 can be mined.

    The Fusion series of dust collectors is another option. These collectors can be customized to address any concern, while running efficiently and with less maintenance than other equipment. RoboVent also offers a number of exhaust fans and make-up air systems. These units keep air moving using powerful blowers and advanced controls. and unacceptably high airborne dust levels attheface. In South Africa, progress inthe application offully mechanized continuous mining systems willdepend on their ability to cut at maximum efficiency. Here, the high strength and abrasiveness ofthe coals are major factors inhibiting the use of .

    Hard Rock Miner’s Handbook is a work of the heart. Jack—whose 40+ year career spanned engineering, construction, and operation of mining projects worldwide—conceived of and wrote the first edition of the Handbook, published in June , to assist miners and engineers in the difficult world of hard rock mining. It was his. Roll back dust. Dust from cutting coal. Continuous miner chassis. HU Oper. Scrubber. exhaust. Dust from cutter drum. Dust from tail. Dust. Dust. Dust. Roll back dust. Continuous miner operator. Return air. Intake air. Current cutting drum spray system. Coal dust wettability characteristics affect dust control. Current spray block design.


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Computer modeling of continuous miner cutting systems for dust generation by Bruce D. Hanson Download PDF EPUB FB2

Computer modeling of continuous miner cutting systems for dust generation. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, (OCoLC) COMPUTER MODELING OF CONTINUOUS MINER CUTTING SYSTEMS FOR DUST GENERATION By B. Hanson 1 and W. Roepke2 ABSTRACT The U.S. Bureau of Mines has developed an interactive computer program which enables the user to identify the effect of cutting system changes on relative dust generation and forces for continuous miner drums.

The U.S. Bureau of Mines has developed an interactive computer program that enables the user to identify the effect of cutting system changes on relative dust generation and forces for continuous miner drums. The program simultaneously evaluates machine and coal seam parameters, and those parameters that the user can control.

Since die introduction of continuous miners in I's, not much change has been made in the cutting drum design for efficient excavation and reduced respirable dust generation.

The problem in continuous miner head/drum is mainly associated with bit/tool and drum geometry. The bits'/tools' tips and the bodies are not designed properly, resulting in.

computer data acquisition system. Face return airflow was A key component for controlling dust generated by continuous miners in ft cuts has been the utilization of flooded-bed scrubbers. The 12CM12 continuous miner, with a solid-head cutting head system, features a mm (38 in.) conveyor width for standard width entry applications.

The 12CM12, as well as all 12CM series continuous miners, are designed specifically to make efficient use of the additional space available in higher seam heights by offering improved outboard. Analysis of the longwall miner, continuous miner, and drill shroud labs progressed and continued through FY In-house airflow analysis was conducted to aid in the improvement and development of dust controls for the continuous miner, with significant work being conducted to model and validate different continuous miner configurations.

Active dust capturing systems, like flooded-bed dust scrubbers, are deployed on continuous mining machines to capture dust generated at the coal face.

These scrubbers capture dust particles on a mesh-like impingement screen flooded with water. These systems have proven to reduce respirable dust concentrations between 60% and 90% on a mass basis.

Simon, P. and Richard, L. () Continuous miner-technology and systems, The Mining, Geolo gical & Melallurgical, Inst. of India conference on High production technology for underground mines. • “Continuous miner operator” is the most frequently listed occupation on death certificates that record silicosis as the cause of death.

In light of the ongoing severity of. Continuous Miners. We manufacture a range of drive motors for continuous miners and bolter miners including the drives for haulage, hydraulics and gathering arms. These motors are designed to give the maximum possible output from the size limitations imposed by the driven equipment.

The four fundamental principles of dust control, prevention of generation, suppression on site with water sprays, collection by scrubbers, and dilution by ventilation, are applied to continuous miners, longwall faces, and roof bolters.

Enhanced dust control with 28 different surfactants is presented. Continuous Miner Dust Controls • Water Sprays • Wetting Agents • Wethead Drum • Scrubbers • Face Airflow Practices (Ventilation) • Spray and Scrubber Optimization for Exhaust Face Ventilation Systems • Underground Studies of Continuous Miner Scrubber Effectiveness • Mining Crosscuts • Bit Design and Cutting Considerations.

Our range of mechanical industrial cutting equipment includes electrically powered and track-mounted bolter miners for constructing and securing roadways, continuous miners and borer miners for continuous extraction of coal and soft minerals, boxhole borers for boring circular passages, reef miners for low-profile mining, roadheaders for underground excavation and tunneling, and cutting.

Pre-cleaner dust assessment Results • 18% of the precleaner dust is respirable size (dust is respirable size. • Quartz content of precleaner dust is not significantly different from that of collector box dust (% vs. • Based on a preliminary study, precleaner dust dump events did not result in measurable increases of airborne.

COMPUTER MODELING OF DUST AND FORCES FOR LONGWALL MINING SYSTEMS By B. Hanson 1 and W. Roepke2 ABSTRACT An interactive computer program has been developed by the Bureau of Mines which enables the user to identify the effect of cutting system changes on relative dust generation for longwall shearer drums.

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the s, has been widely used to generate electricity.

Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.

In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is a 'pit', and. The surface miner is a mobile milling machine with a mechanically driven cutting drum.

On Wirtgen machinery the drum is located between two sets of individually height adjustable crawler tracks, and a two- stage conveyor system used to directly load trucks. Wirtgen surface miners cut, crush and load the material in one single pass.

Caterpillar’s hard-rock cutting line, concurs: “It has been a vision of the company for more than 15 years to make continuous mining available for the hard-rock mining industry,” he tellsMM. “In coal and soft-rock mining, longwalls and continuous miners have set safety and performance standards.

Sandvik double-pass miners use the most advanced cutting technology for the continuous mining of coal and soft materials. Continuous miners cut and gather the material simultaneously and convey it into shuttle cars, haul trucks or a continuous haulage system. They are typically used for full-scale production in room-and-pillar mining operations.

The high labor intensity and cost associated with cutting stone makes quarrying the most expensive surface mining method. Highwall mining is a coal mining method for recovery of outcropped coal by mechanical excavation without removal of overburden.

A continuous miner with single or multiple. Continuous miner is a mining machine that produces a constant flow of ore fromthe working face of the mine. The machine continuously extracts as it is loadingcoal with a cutting steel drum and conveyor continuous miner has been available in some form since the late s.mid-seam operations, the Cat CM continuous miner incorporates all the robust features of the CM Series plus new features and enhancements.

With 2 × kW (2 × hp) cutter-head motors, it is the most powerful continuous miner in its class.