Troubleshooting roll defects - causes and corrective actions

Neglecting to turn trim removal fan on: Turn fan on. Trim is too narrow for removal system to handle at times: There is a minimum trim below which it is dangerous to go. Trim removal system of marginal capacity for speed of winder: Slow winder down and/or increase trim removal system capacity. Dust. Very fine, loose material located on the web

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Steel - Basic oxygen steelmaking | Britannica

Steel - Steel - Basic oxygen steelmaking: More than half the worlds steel is produced in the basic oxygen process (BOP), which uses pure oxygen to convert a charge of liquid blast-furnace iron and scrap into steel. The basic oxygen furnace (BOF) is a refractory-lined, tiltable converter into which a vertically movable, water-cooled lance is inserted to blow oxygen through nozzles at

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Mitsubishi Power, Ltd. | Power Plants: Integrated Coal

Mitsubishi Power is in charge of designing, manufacturing, installing, and test-running an oxygen-blown single-chamber, two-stage, swirl-flow entrained-bed gasifier with a coal feed rate of 1,180 t/day, 166-megawatt combined cycle power generation equipment, and electrical and control equipment.

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Design Guidelines for an Optimum Scrubber System

The reason for this decision is clearly economic: where a scrubber system is needed to meet S02 emission standards, and a throwaway flue gas desulfurization system (such as lime, limestone, or alkaline flyash) is used, it is less costly to remove the dust with a particulate scrubber than with an electrostatic precipitator (Mcllvaine and Ardell

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Pulverised Coal - an overview | ScienceDirect Topics

Blast furnace dust can be recycled by injecting if its Zn content is not too high to accumulate in the process. 1.1.4.2.3 Oil and Tar. Injection of oil was widely used before oil crisis in the 1970s. Since then PCI has been dominant. Equipment for oil injection is quite simple. Oil has been injected up to

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10 Some Methods of Reducing Sulfur Oxides from Power

When a clean dust-free gaseous fuel was needed by industry (e.g. at glass works), it was made by gasifying coal with a mixture of steam and air in a continuous process. The hot gas produced (producer gas) had a low BTU content (130 BTU per cubic foot) because of the dilution with the nitrogen in the air from which it was made.

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Hydrogen Production By Steam Reforming - Chemical

May 01, 2010 · (Page 1) Steam reforming of natural gas at petroleum refining facilities is the predominant means of producing hydrogen in the chemical process industries (CPI). Because hydrogen needs within various sectors of the CPI are at their highest levels in history, and are continuing to grow, an understanding of this method of hydrogen production and purification can be useful

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Glossary of Mining Terms - Coal Education

A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.

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Electrostatic Precipitator - an overview | ScienceDirect

Electrostatic precipitator technology is the preferred PM removal technology in the power industry because of its advantages of large amount of flue gas, high PM removal efficiency, low equipment resistance, simple and reliable use, low operation and maintenance cost,

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Commodity Codes Look-Up | Purchasing

This look-up uses the National Institute of Government Purchasing Codes (NIGP). For a detailed explanation of the NIGP Code used, please visit our NIGP Code Explained webpage. To use this look-up, click on a commodity category below to view selected class item commodity codes.

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