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3 edition of Control of Bulk Density of the Coal Charge in Byproduct Coke Ovens. found in the catalog.

Control of Bulk Density of the Coal Charge in Byproduct Coke Ovens.

United States. Bureau of Mines.

Control of Bulk Density of the Coal Charge in Byproduct Coke Ovens.

by United States. Bureau of Mines.

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Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesReport of investigations (United States. Bureau of Mines) -- 3743
ContributionsSeymour, W., Schmidt, L.
ID Numbers
Open LibraryOL21749421M

coal hammer crusher for non coke oven plant. Sundy Infrared Sulfur Analyzer can be used to determine the sulfur content in coal, coke, ash, biomass fuels and other combustibles in fields of power plants, coal mines, paper making, metallurgy, petrochemical, steel factory etc. Main body size mm * mm * mm Main body weight KG IS0 Solid Mineral Fuels Determination of. USA USA USA USA US A US A US A US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords coal grate gases gas coke Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

@article{osti_, title = {Optimization of coal blends for coke making by the stamp-charging process}, author = {Kuyumcu, H Z}, abstractNote = {Stamp charging means coke production in horizontal chamber ovens, where the coal blend is previously compacted to a so-called coal cake with slightly smaller dimensions than those of the oven and charged to the oven from the battery ram side. Coal utilization, combustion of coal or its conversion into useful solid, gaseous, and liquid products. By far the most important use of coal is in combustion, mainly to provide heat to the boilers of electric power plants. Metallurgical coke is the major product of coal conversion. In addition, techniques for gasifying and liquefying coal into fuels or into feedstocks for the chemical.

Particular attention has been paid to the study of charge and coke cake bulk densities and the search for ways of increasing them to raise coke quality and increase coke-oven productivity. The effects of charge properties on bulk density have been determined at various points in the coke ovens, after charging by the traditional method and. Most coke plants are collocated with iron and steel production facilities, and the demand for coke the major process equipment in a schematic diagram of a byproduct coke Coal Preparation And Charging For By-Product Coke Ovens coal crusher where it .


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Control of Bulk Density of the Coal Charge in Byproduct Coke Ovens by United States. Bureau of Mines. Download PDF EPUB FB2

Additional Physical Format: Online version: Seymour, William. Control of bulk density of the coal charge in byproduct coke ovens.

Washington, D.C.: U.S. Dept. of the. Coke ovens are the chambers made of refractories to convert coal into coke by carbonizing coal in absence of air and there by distilling the volatile matter out of coal.

Byproduct coke oven plant consists of one or more coke oven batteries containing number of coke ovens. Control of bulk density of the coal charge in byproduct coke ovens / By William.

Seymour and L. Schmidt. Abstract. Prepared in cooperation with the Office of Solid Fuels Administrator for of access: Internet Topics: Coal.

Author: William. Seymour and L. Schmidt. Coke ovens are the chambers made of refractories to convert coal into coke by carbonizing coal in absence of air and there by distilling the volatile matter out of coal. Byproduct coke oven plant consists of one or more coke oven batteries containing number of coke ovens (can vary from 20 to in each battery).

The present method describes a procedure for determining a reference bulk density for crushed coal such as that charged into coke ovens. When charging a coke oven, a knowledge of the mass of coal placed in the oven for maintaining a relatively constant oven charge is a requirement.

This test is designed to obtain a degree of compaction of coal. three major subprocesses: coal preparation and charging, thermal distillation and pushing, and byproduct recovery.

Coal Preparation And Charging For By-Product Coke Ovens - The coal that is charged to the ovens is usually a blend of two or more low, medium, or high volatile coals that are generally low in sulfur and ash.

Introduction. The aim of the coal compacting in cokemaking is to increase the bulk density of coal to be charged in coke ovens up to a relative material density of about 80%, i.e., a compact density around kg/m 3 (dry basis) depending on the true density of the coal.

In stamp charge cokemaking operation, the coal blend is quasi-continuously fed into a metal box of. Some of the other factors affecting quality of coke are rank of coal, particle size, bulk density, weathering of coal, coking temperature and coking rate, soaking time, quenching practice.

Coke Oven Plant: Various sections in coke oven plant are given in Table M-II Table M-II Various section in coke oven plant are. This method allows obtaining coal charge bulk density of kg/m 3 (wet basis) and higher, whereas for top charged coke ovens this value is on the order of kg/m 3.

Thermal distillation (coking process) takes place in groups of ovens called coke oven battery. A battery consists of 20 to adjacent ovens with common side walls made of high quality silica and other types of refractory bricks.

Typically, the individual coke ovens are 11 m to m long, m to m wide, and m to m high. The control of the moisture content in blended coal is significant to improve the operating conditions and coke strength in the top-charging coking and stamp-charging coking processes [1,2].

the process of converting coal into coke using the by-product coke oven, the volatile matter in the coal is vaporized and driven off. This volatile matter leaves the coke oven chambers as hot, raw coke oven gas. After leaving the coke oven chambers, the raw coke oven gas is cooled which results in a liquid condensate stream and a gas stream.

ISO provides description of a cone procedure for determining an uncompacted bulk density of crushed coal less than 37 mm in size, such as is charged into coke ovens. It focuses on the uncompacted bulk density of coal resulting from flowing the material into a measuring container (box) in the absence of compacting forces.

The sensitivity of coke reactivity measurement has use in monitoring the maximum temperature reached during the coking operation. Operating factors influencing the maximum temperature of the coke are --coke pushing time schedule, coal charge bulk density, oven heating flue temperature, and heat transfer character of the coal mix.

The majority of coke produced in the United States comes from wet-charge, by-product coke oven batteries (Figure 1). The entire cokemaking operation is comprised of the following steps: Before carbonization, the selected coals from specific mines are blended, pulverized, and oiled for proper bulk density control.

The blended coal is charged into a. Pilot Scale Stamp Charge Coke-making Stamp charge coke-making is commonly used in density variation programs and blending programs where higher densities of coal are required. This type of coke-making is applicable to the Indian coking coal market, where stamp charging in industrial coke ovens.

Coke is the solid carbonaceous material derived from destructive distillation of low-ash, low-sulfur bituminous coal.

Cokes from coal are grey, hard, and porous. While coke can be formed naturally, the commonly used form is man-made. Coke is used as a fuel and as.

The bulk density and mechanical strength of compressed coal cake are controlled by varying the compressing energy, compacting time (when stamping with cyclic impacts of the stampers), coal type. Bulk density depends on coke grain size, porosity, etc. ρ ≈ – kg/m 3. Standard characteristics of coke quality and test methods seem to be insufficient to simulate changing conditions in a modern BF, described in the next section (low coke rate, high pulverised coal injection rate, use of other injectants).

The bulk density of coal charge, energy requirement for coke making, flowability of coal charge etc. guide the extent of moisture in coal blend. Studies have revealed that the bulk density of the charge for the desired crushing level (80% through.

Coke ovens. Modern coke ovens can be as large as metres (21 feet) high, metres (50 feet) long, and metre ( feet) wide, each oven holding up to about 36 tons of coal. The coking time (i.e., between charging and discharging) is about 15 hours. Such ovens are arranged in batteries, containing up to ovens each.Higher rank coal and coke - Bulk density: AS Coal and coke - Sampling Higher rank coal - Sampling procedures: AS Coal and coke - Analysis and testing Higher rank coal - Total moisture: AS Coal and coke - Analysis and testing Higher rank coal - Total moisture: AS Coal and coke - Analysis.DESIGN BASIS FOR A TPD BYPRODUCT COKE OVEN PLANT Coal Type Coal Moisture: Sulfur Content: Bituminous Mixture % by wt.

% by wt. Coke Ovens Operating Conditions Batteries: Coke Ovens per battery: Coal charge per oven: Coking cycle: Temperature: Underfire excess air: 3 85 20 tons 17 hours °C 6% 3.