Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 121 for “"Conveyor"”.
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CMOS/Bipolar current conveyor design and development
… was to design and develop a novel CMOS current conveyor, to improve areas such as bandwidth, slew rate, gain, and Powe- Supply Reject Ratio (PSRR). The current conveyor can be used in low frequency applications such as LED drivers for mobile phones and televisions, and high frequency …
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Transient dynamic discrete model for conveyor belts, A
Includes bibliographical references (pages 94-95).
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Unique massflow estimation technique for horizontal conveyor belts
Massflows on conveyor belts need to be measured in various process streams in mineral extraction processes to ensure good plant management. Conventional weightometers are, however, too expensive to allow a widespread installation in these processes. This study investigates more economic means to …
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A model to predict the lifetime of pneumatic conveyor bends
Bursts in pneumatic conveyor pipelines in industrial processes are a well-known hindrance to the smooth operation of any plant. Unanticipated stoppages can have serious financial implications for any company using pneumatic conveying technology, and health and safety factors are also paramount. …
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An evaluation of forward integration in the transfer conveyor market
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1994.
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A generalized simulation model for the design of a conveyor system
… is developed in SLAM II to study and analyze conveyor systems.. The adequacy of the model is tested by applying it to a conveyor layout as well as some variant designs. 1he problem of modeling large systems is reduced by decomposing the system into smaller segments (subsystems). Different …
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Improving Conveyor Belt Safety Training Through the Use of Virtual Reality
Working around conveyor belts is the cause of numerous accidents each year that are costly to the mining industry. Current safety training practices generally include the use of slide show presentations, lectures, videos, and paper material before sending each worker onto site with an experienced …
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An Interactive Digital Manual For Safety Around Conveyor Belts In Surface Mining
Belt conveyor accidents are mainly attributed to negligence of safety procedures during maintenance work. Entanglement, falling from heights, & collapse of structure or loose materials are the main cause of accidents. While performing maintenance tasks such as cleaning, installation and repair, …
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The flow of particulate bulk solids in an air-assisted gravity conveyor
… how the same powder would flow in an air-gravity conveyor. As a result, a simple chart was prepared allowing an estimate to be made of the minimum fIuidising velocity and the velocity at which entrainment of fines could occur from a knowledge only of the density and particle size of the powder …
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Investigation and Improvement of the Conveyor System at a Bottle Packaging Operation.
… investigation examines the bottle packaging conveyor system and its impact on the overall efficiency at a bottle packaging plant in Anderson, South Carolina. The purpose of this study is to demonstrate the existing opportunity to reduce bottle unit cost, increase productivity, decrease the …
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Continuous production of supported and shaped metal nanocatalysts using conveyor transport system
… in final products. In this dissertation, conveyor transport system was developed as a new technique to produce continuously a family of supported and shaped metal nanocatalysts in a single-step process. With carbon monoxide (CO) as a major species to mediate the surface structures of …
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Some of the factors affecting the operation of a screw conveyor type mixer
A four unit helical conveyor type mixer with cut and folded elements built by L. C. Peery at Virginia Polytechnic Institute in 1939 was tested. Preliminary investigations, made before tests to obtain pertinent data were begun, showed the advisability of straightening these folds. The purpose of …
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Quality management system to improve conveyor system performance : Lethabo Power Station as case study
… Power Station experienced a number of ash plant conveyor failures that resulted in production loss and plant damages. This study was aimed at determining the root causes of the failures (technical, management system and process) that led to conveyor unreliability. The problem was verified by …
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Design and construction of a vibration data logging prototype board for overland conveyor belts
Overland conveyor belt systems form a vital part of modern transportation systems in the mining and mineral processing industries. It is vital that the system is well maintained in order to minimise system downtime and maximise profit. The conveyor belt is the single most expensive item in the …
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The use of laboratory erosion tests for the prediction of wear in pneumatic conveyor bends
… to predict the life of a bend in a pneumatic conveyor. Providing a link between a laboratory erosion tester and erosion tests on a pneumatic conveyor would lead to the development of an inexpensive way of predicting the life of a pipe bend operating under any given set of conveying conditions. …
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Conveyor-belts of information: the role of political parties in basic service delivery in Africa
… same. To illustrate political parties' role as Conveyor-Belts of Information, I focus specifically on two types of actors in these organisations – local party activists and elected representatives. First, using a panel survey of Zambian citizens I demonstrate that party activists and elected …
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A machine vision-based approach to measuring the size distribution of rocks on a conveyor belt
… measuring the size distribution of rocks on a conveyor belt. The system has applications in automatic control and optimization of milling machines, and the selection of optimal blasting methods in the mining industry. Rock size is initially assumed to be the projected rock surface area due to …
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Controlling the feedrate of material from a vibratory pipe conveyor using an electro-magnetic vibrator and load cell system
Submitted in compliance with the requirements for the National Masters Diploma in Technology: Electronic Engineering, Technikon Natal, Durban, South Africa, 1994.
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Energy audit methodology for belt conveyors
… largest components of operating costs on a belt conveyor system. This dissertation introduces a unique Conveyor Electricity Cost Efficiency Audit Methodology (CECEAM). In the CECEAM the conveyor system is evaluated from a high to detail level in order to identify opportunities to improve …
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