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Conveyer Belt Transport

Conveyor belts are normally nsed in mine-mouth power plants to bring coal from the mining area to the storage or usage area. Conveyor belts can be used for coal transport in hilly terrain where roads are relatively inaccessible, typically being used to move coal over distances of 5-15 miles. [Pg.185]

Conveyors have the advantage of being relatively maintenance free but have the disadvantage of location inflexibility, making a truck haul still necessary. Movable conveyor belts have been developed and used (U.S. DOE, 1979). The only adverse environmental impacts of conveyor belts for coal transport are coal dust losses during loading, unloading, or transport. [Pg.185]

Conveyor belts do not use water, except for belt cleaning they can use plant electricity and do not require petroleum as the energy source. However, conveyor belts tend to be very energy-intensive. As a result, conveyor belt transport of coal has been limited to shorter distances. [Pg.185]

Storage of coal is an important part of coal-handling systems at mines, particularly since the advent of the unit-train concept in transportation. [Pg.185]

With this in mind, coal storage is generally practiced in order to accomplish one, or a combination, of the following objectives (1) to be ready for transportation promptly, (2) to facilitate blending in order to even out chemical and physical inconsistencies that exist in such a heterogeneous material and to produce a saleable product that has (at best) uniformity, and (3) to store coal of preferential sizes where the demand is seasonal (Berkowitz and Speight, 1973). [Pg.185]


Figure 132 gives a scheme of the functioning of the apparatus worked out by North American Rockwell Corp. (Los Angeles) A conveyer belt transports the luggage first past a neutron generator and then past a detector. The radiation detected is amplified, analysed and compared with a preset threshold. If the detected radiation surpasses the threshold, a visual alarm is activated. ... [Pg.324]

Imaging has also been applied to the study of chilling injury in persimmon fruit,312 to the study of growth and ripening of kiwi fruit,313 and to the detection of pitted olives, while a conveyer belt transports the fruits through a low-field NMR magnet.314... [Pg.129]

The usual means of transporting coal are railroad, barge, tmck, conveyer belt from mine to plant, and slurry pipelines (2,4) (see Transportation). In 1988 769 X 10 t of coal was transported to United States destinations of this, 57.5% was shipped by railroad, 16.0% by barge, 12.3% by tmck, and 14.2% by conveyer, slurry pipeline, and other methods (2). Electric utihties consumed 85.83% of the coal transported in the United States in 1988 (2). [Pg.231]

Hydrauhc transport is used in mines and for lifting coals to the surface in Russia, Poland, and France. Pneumatic transport of coal is used over short distances in power plants and steel mills. The longest (14.5 km) single flight conveyer belt in the world near Uniontown, Kentucky, has a capacity of 1360 t/h. [Pg.231]

The NO3 content of upweUing water is strongly influenced by the location of a system (Codispoti et al., 1982) in the global oceanic conveyer belt that transports deep water through the ocean basins (Broecker and Peng, 1982, their Fig. 1.12). From the North Atlantic to the Pacific and Indian Oceans through the Antarctic Circumpolar Current, there are increasing nutrients, from the faUout of surface productivity. [Pg.774]

Pyrite transport in near-surface sediments generally takes place through the conveyer belt of bioturbation whereby burrowing macrofauna mix the sediment or directly move sediment particles as part of their deposit feeding behavior (Fig. 8.16). As the pyrite reaches up into the suboxic... [Pg.296]

The proposed layout is shown in Figure 9.49. The feed is pumped by a high-pressure pump to spray nozzles. These nozzles can be arranged in various configurations. Here, the spray from the nozzles travels horizontally and then turns down due to gravity. The dried powders are then transported by a conveying belt at the bottom and also conveyed to cyclones or bag filters. [Pg.220]

Each mango was used to pass through a conveyer belt every day until it rotten and was presented to the experts (after removing tags) for recording of human expert predicted maturity level. Then the mangoes were stored in a manner as used during transportation. [Pg.29]

The design of muck transport system must consider many other elements of the excavation. Crane and hoisted buckets, bucket elevator (conveyer belt), dumpers and car-hft, dumpers travelling on spiral road, muck pumping systems are commonly used mucking systems. [Pg.369]

PFOS has also moved deeper in the oceans. In one study between 2002 and 2006, a team of researchers collected samples from 62 locations offshore of Japan and Angola and in the open ocean at various depths [53]. These open-water sampling locations were in the North Atlantic Ocean, Mid-Atlantic Ocean, central to western Pacific Ocean, soufh Pacific Ocean, South China Sea, Japan Sea, and Indian Ocean. The research team concluded that the distributions of PFOS and fhe relafed compound perfluorooctanoate (PFOA), laferally and verfically, were consistent with transport via the Great Ocean Conveyer Belt. The relatively low density distribution of samples and the relatively short period of use of PFOS (about 50 years) make it difficult to reach a definitive conclusion, but the results suggest, in the researchers view, the potential for global fhree-dimensional transport of persistent compounds. [Pg.18]

Figure 37.41 shows the schematic sampling arrangement where the sample is transported on a conveyer belt. In a real sample, even if the overall concentration is constant, the individual particles of the sample could contain different concentrations. The changes in the concentration alter the individual optical readings at different wavelengths. [Pg.751]

In order to place the tubes, a ship equipped with a conveyer belt (Kanyu) started dredging along the Strait in August 2005. Approximately 1,000,000 m (1,307,900 yards ) of clean material consists of soft soil, gravel and sand have been removed and transported to Qinarcik Ditch in the Sea of Marmara with permission of Ministry of Environment. [Pg.731]

The screened coal is stored in bunkers with 8-24 h hold-up for one gasifier each. It is transported on conveyer belts to the top of the gasifier and filled via a feeding chute into the coal lock (see Figure 6.36). The coal lock is a sluice consisting of a pressure vessel, an inlet cone valve at the top, and an outlet cone valve at the bottom. Because the task of the coal lock is to bring the coal from ambient pressure to reactor pressure, devices for pressurization and depressurization are... [Pg.248]

Dry soHds, such as as-rnined ore, emshed ore, and dried concentrates, are transported using tmeks, rail cars, ore passes, conveyor belts (see Conveying), or slurry pipelines (qv) as dictated by the logistics, distances involved, and capacity. Within the mill, conveyor belts are more common, but for fine particles, tailings, and coal, slurry transportation is more typical. [Pg.415]

Figure 5.10. Closed belt (zipper) for conveying in any direction (Stephens-Adamson Co.), (a) Arrangement of pulley, feed hopper and open and closed belt regions, (b) The tubular belt conveyor for horizontal and vertical transport a section of the zippered closed belt is shown, (c) Showing how the zipper closes (on downward movement of the belt in this sketch) or opens (on upward movement of the belt). Figure 5.10. Closed belt (zipper) for conveying in any direction (Stephens-Adamson Co.), (a) Arrangement of pulley, feed hopper and open and closed belt regions, (b) The tubular belt conveyor for horizontal and vertical transport a section of the zippered closed belt is shown, (c) Showing how the zipper closes (on downward movement of the belt in this sketch) or opens (on upward movement of the belt).

See other pages where Conveyer Belt Transport is mentioned: [Pg.387]    [Pg.122]    [Pg.185]    [Pg.488]    [Pg.387]    [Pg.122]    [Pg.185]    [Pg.488]    [Pg.1804]    [Pg.140]    [Pg.162]    [Pg.533]    [Pg.1564]    [Pg.236]    [Pg.296]    [Pg.1808]    [Pg.160]    [Pg.205]    [Pg.188]    [Pg.125]    [Pg.329]    [Pg.530]    [Pg.507]    [Pg.35]    [Pg.240]    [Pg.362]    [Pg.2314]    [Pg.571]    [Pg.415]    [Pg.99]    [Pg.182]    [Pg.154]    [Pg.156]    [Pg.178]    [Pg.99]    [Pg.461]    [Pg.176]   


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