Group: AMETEK
Catalog excerpts
INSTRUMENTS FOR FLUE GAS DESULFURIZATION
Open the catalog to page 1he reduction of air pollution has been mandated by several Clean Air Acts beginning in 1963 and followed by major revisions and amendments throughout the successive decades. The Amendments of 1990 specifically addressed acid rain caused by sulfur dioxide (SO2) emissions from fossil-fueled electric power plants and, to a lesser extent, from other industrial sources. The more stringent Phase II of this Act went into effect in 2000. With the new emissions standards arriving at a time when energy prices and global warming dominate the news, Flue Gas Desulphurization (FGD) technology has become...
Open the catalog to page 21. Limestone Processing Limestone is the most extensively TRUCK AND RAIL UNLOADING OF LIMESTONE used reagent in today's utility industry. Limestone arrives by truck and train and is transferred from the limestone LIMESTONE HOPPERS bunker to the ball mill where it is ground into a fine powder. The ground SO2 ABSORBER limestone is then transferred to the 1 hydrocyclone feed tank where makeup LIMESTONE STORE water is added. The slurry proceeds to the limestone slurry storage tanks from where it enters the SO2 absorber tower. There the flue gas is contacted PROCESS WATER by the limestone slurry...
Open the catalog to page 32. Gypsum Recovery Although the FGD process was originally established for environmental purposes, a large amount of high quality, synthetic gypsum is created as a by- CENTRIFUGE PUMP TO LIMESTONE SLURRY FEED TANK product of the scrubbing process. DEWATERING UNIT Gypsum is widely used as a source CENTRATE TANK material for manufacturing wallboard and as a conditioner for agricultural ment to recover, dewater and store gypsum for resale. The gypsum slurry pumped from the absorber is fed to the GYPSUM SLURRY most FGD systems incorporate equip- soils. Because of its commercial value, GYPSUM...
Open the catalog to page 43. Wastewater Treatment A dedicated wastewater facility properly integrated with the FGD scrubber operation is typically required to meet the very strict PRIMARY AND SECONDARY HYDROCYCLONES wastewater discharge requirements that ensure water returned to the source will meet quality standards WATER EQUALIZATION TANK A well-designed treatment facility includes a number of technologies such as lime neutralization, gypsum 4 desaturation, clarification, filtration, biological treatment, and sludge thickening and dewatering. SLUDGE PUMP PROTECTION GRAVITY FILTER TREATED WATER OUTPUT 5 SLUDGE TANK...
Open the catalog to page 55 DEMISTER WATER FEED 2 ACID STORAGE TANK TANK SUMPS UNDERFLOW TANK FEED TANK SO2 Absorption System The SO2-laden boiler flue gas stream passes through the electrostatic precipitators and into the approximately 20% fine-grained limestone. The absorber column. Inlet wash water used to prevent slurry is pumped from the bottom of the absorber a buildup of solids in the inlet duct cools the flue and is sprayed downward from nozzles arranged at separate levels in the absorber tower. Process The SO2 absorption process begins as the flue gas is scrubbed by the recirculating limestone slurry...
Open the catalog to page 6Level and Flow Applications for the SO2 Absorption System Sump Overflow and Leak Detection Small sumps are positioned under tanks plantwide to contain leaks or spills. Sumps also contain leaks from pumps, valves, and pipelines. Point level: Top Mounting Displacer Switch; ECHOTEL Ultrasonic Switch; Float-actuated Flood Level Switch; THERMATEL TD1/TD2 Switch with a Spherical Tip; or KOTRON RF Capacitance Switch Dibasic Acid (DBA) Storage Tank Organic acid additives improve scrubbing efficiency and reliability, and reduce tower operating cost. DBA is typically stored in a heated, agitated tank...
Open the catalog to page 7S p e c i a l A p p l i cat i o n S e r i e s Instrumentation from Magnetrol Guided Wave Radar Thru-Air Radar Eclipse and Horizon transmitters are twowire, loop-powered, 24 VDC level transmitters based on Guided Wave Radar (GWR) technology. Available in coaxial, twin rod and single rod probes, these leading-edge transmitters provide measurement performance well beyond that of many traditional technologies. Available with HART®, FOUNDATION fieldbus™ and PROFIBUS® outputs PULSAR Pulse Burst Radar level transmitters are the latest generation of loop-powered, 24 VDC, liquid level transmitters....
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