Coal and ash handling in thermal power plant mcqs with answers. Fly ash booklet for pdf federal highway administration. Follow appropriate systems of work laid down for your safety. Operation and maintenance of coal handling system in thermal.
They range in size from 300 cubic feet to 17,500 cubic feet, and are designed to work seamlessly with ash handling systems like the ones we have discussed. Bottom ash is transported either continuously or periodically and. Types of ash handling system in power plant engineering 1. Boilers burning pulverized coal pc have bottom furnaces. Ash ash is the residue remaining after the coal is incinerated. The correct procedure to wear cloth is head to be covered first followed by coat. Uses, benefits, and drawbacks of fly ash in construction. Burning of coal leads to generation of ash can be the non combustible part of fuel, or generated after the burning of the coal. The handling system consists of belt conveyors, screw conveyors, etc.
Ppt basic food hygiene powerpoint presentation free to. The function of coal handling plant in thermal power plant is to receive, process, store, feed the coal bunkers consistently over entire life of the power plant. Ash handling systems may employ different forms of pneumatic ash conveying or mechanical ash conveyors. Handling data gcse resources for teachers and students.
Tecpro, since 2002 is one of the fastest growing epc companies in the core sector. Protective clothing should not be worn outside the food. Generally the power plants prefer dry fly ash disposal instead of making ash slurry from the fly ash and the reason is that the fly ash collected. Only authorized and trained employees would have access. Handling of ash is a problem because ash coming out of the furnace is too hot, it is dusty and irritating to handle and is accompanied by some poisonous gases 4. The dust handling plant is associated with the ash handling plant but is considered as a separate layout problem.
Operation and maintenance of coal handling system in thermal power plant j. Due to the absence of an active excretory mechanism, iron balance in mammals is maintained by limiting its intestinal uptake and by continuously recycling and reusing cellular iron. Ash handling equipment is one of the most crucial links in the solid fuel, biomass boiler, and combustion systems chain. Coal handling system coal handling plant in thermal power plant. Dry ash handlingpresentation free download as powerpoint presentation. Ppt thermal power plant powerpoint presentation free to. Is 50 1959 gross calorific value at constant volume is the quantity of heat liberated by combusting the fuel at constant volume in oxygen. Ash handling system power plant engineering amit mak youtube. Sodalime glass consists of sand, limestone, soda ash, and cullet broken glass. Wear protective clothing which is washable,lightcoloured without external pockets. Bottom ash is stored in storage hopper for 8 12 hours, ground by a clinker grinder, and then transported to ash transport tank via hydroejector seawater is continuously supplied to cool down the water in the bottom ash storage hopper below 60. Ash handling plant an overview sciencedirect topics.
Coal handling plant consists of track hopper,feeders, conveyor system, roller screen, crusher, stacker reclaimer, compressor,dfds system,ttr,pumps etc. The dust is handled in its dry state throughout the plant by pneumatic air slides which remove dust from the economiser hoppers and precipitator hoppers. Fences, barricades, and locked doors, whether inside the facility or outside, can be used to prevent unauthorized access to areas where a fall hazard exists. Find details of companies offering ash handling systems at best price. Both moisture and ash are determined after equilibrating at 60 percent relative humidity and 400c temperature as per relevant clauses of indian standard specification no. Ash handling plant or ash handling system in thermal power plant are used to cooled down the ash to manageable temperature, transferred to a disposal area or storage which is further utilized in other industries. Home inspection ppt chimney safety institute of america csia. Theory and design of dilute phase pneumatic conveying systems. Othmer as described by them in their book fluidization and fluidparticle systems published in 1960 ref. Make proper use of equipment provided for your safety. Sodalime glass, since it constitutes 77 percent of total glass production, is discussed here. Ash handling options for coalfired power plants power.
Ash handling systems have experienced gradual changes since the 1970s, but the kingston event triggered the u. May 07, 2014 ash handling system of a thermal power plant 1. Found in plants around the world, ash handling systems are set up in harsh environments where they endure intense temperatures. Precautions for safe handling, including recommendations for handling incompatible chemicals, minimizing the release of the chemical into the environment, and providing advice on general hygiene practices e. Environmental protection epa to create new regulations for ash handling that will.
Photomicrograph made with a scanning electron microscope sem. Nov, 2016 the initial process in coal based thermal power plant is coal handling. Explaining ash handling systems for biomass to energy boilers. Ash handling systen in a power plant free download as powerpoint presentation.
Coal handling plant in a thermal power generating station. Mechanical means are required for the disposal of ash. Coal is transported in thermal power station either by railways,roadways or rope ways. Scribd is the worlds largest social reading and publishing site. Thermal power plant free download project of php,java,asp. Fly ash particles at 2,000 x magnification ash handling refers to the method of collection, conveying, interim storage and load out of various types of ash residue left over from solid fuel combustion processes. Ash produced in about 10 to 20% of the total coal burnt in the furnace. Once inside, a method of fall protection must be implemented for the authorized worker. Ash storage silos can be constructed for both fly ash and bottom ash applications.
Aug 09, 2016 introduction to thermal power plant general layout of thermal power plant site selection criterion of thermal power plant coal preparation coal storage ash handling electrostatic precipitator. In fly ash handling system, the major objective is to collect and transport the fly ash from the ash hoppers of the esp to the fly ash silo or to the ash slurry making tank. A free powerpoint ppt presentation displayed as a flash slide show on id. Home inspection ppt chimney safety institute of america. Environmental protection epa to create new regulations for. Vacuum type pneumatic system clear space is available below esp area. The schenck process method of fly ash handling is clean, efficient and fully enclosed, with exceptional reliability and requiring minimum maintenance. Microsoft powerpoint is a presentation application included with microsoft office, and can be downloaded and installed on your computer at the same time you install microsoft office. In a coal based thermal power plant, the initial process in the power generation is coal handling. Introduction in india 65% of total power is generated by the thermal power stations. Oct 15, 2017 types of ash handling system in power plant engineering 1.
Coal handling plants a complete details about chp equipments. Ash handling system in thermal power plant ash handling. A typical ash handling system may employ vacuum pneumatic ash collection with ash conveying from several ash pick up stations and resulting in delivery to an ash storage silo for interim holding prior to load out for disposal or reuse. The large ash particles are collected under the furnace in a waterfilled ash hopper, fly ash is collected in dust collectors with either an electrostatic precipitator or a baghouse. Submitted by 1 akshay kumar yaday r630211006 2 amay jain r630211007 3 aniket bhattacharya r630211008 4 animesh gupta r630211009 5 anukriti r630211011 2. Ash from the various collecting points is pneumatically conveyed to the ash storage silo and is unloaded at regular periods for final disposal without creating a dust nuisance.
The final component of a highquality ash handling system is the ash storage silo. Introduction ash handling systems are required for removal of bottom ash and fly ash from coal fired boilers. Dense phase pneumatic system conveying speed is low. Ash handling system power plant engineering amit mak. Cooperate with your employer on health and safety matters. Over a third of all accidents reported to the hse and local authorities arise from manual handling. Coal and ash handling in thermal power plant mcqs with answers ahsan 071919 good information and some more info like size of coal and equipment descriptions or dictionary of these terms to be included. Detroit ash handling systems are designed for effective, economical and trouble free disposal of ash from units burning coal or solid refuse fuels.
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