16-05-2012, 12:19 PM
WET ASH HANDLING system
ASH HANDLING REPORT.docx (Size: 1,004.58 KB / Downloads: 92)
ABSTRACT
In a thermal power plant ash handling is a major problem because if the ash in the flue gasses is left to the atmosphere cause lung cancer and it also contaminates the water and it also causes air pollution.
We have studied in detail about the ash handling plant in KTPS. The system used in KTPS is a WET ASH HANDLING system. The ash is collected at various places such as bottom ash hoppers, economiser hoppers, air pre-heater and ESP. The ash collected is mixed with water in a container and is send into the slurry sump from the slurry sump it is send into the ash pond.
The pond ash can be used as manure but only a small amount of ash is used and the remaining ash is going as waste in the wet ash handling system. But if we use dry ash handling system we can use ash as a bi-product. It can be used as a mixture in cement industry, in brick making and it can also be used to fill the low lying areas.
INTRODCTION TO KTPS
ABOUT APGENCO
Andhra Pradesh Power Generation Corporation is limited in the power generating company of Andhra Pradesh. Its installed capacity is 6550.9MW. It is the third largest power unit in India. It has also achieved highest PLF (power load factor) of 87.7% in the country (in the year 2004-05) and is highest ever achieved by APGENCO.
VISION: To be the best power utility in the country and one of the best in the world
MISSION:
1. To generate adequate and reliable power most economically, efficient and eco-friendly.
2. To spearhead accelerator power developed by planning and implementing new power projects.
3. To implement renovation and modernization of all existing units and enhance their performance
ABOUT KTPS
Kothagudem thermal power station a place of pride in the thermal map in INDIA. It was the first major thermal power station to set up in Andhra Pradesh state electricity board.
Kothagudem thermal power station is basically the coal fired thermal power generation station with total installed capacity of 1720MW. The plant has been divided into namely A, B and C stations. The station has been the recipient of many prestigious awards from various organizations including meritorious awards instituted by the govt .of India. The station has received Meritories productivity awards for nine times and Incentive award for eight times.
SITE LOCATION
Kothagudem thermal power station is located 12kms away from the nearest rail head i.e., Bhadrachalam railway station, on the broad gauge branch line taking off from Dornakal on the Kazipet-Vizayaada rail way line of South Central Railway. The actual site of power station is near Paloncha town which is about 12kms from the collieries town of Kothagudem in Khammam District. The site of the power station is only 3kms from the main Kothagudem-Bhadrachalam road. The total area of KTPS complex is 5450acres in which the power station and its pertinent structures as well as the administrative buildings and residential colonies are located.
WATER SUPPLY
The water supply for the power station is from the reservoir, built across Kinnerasani River at a distance of 10kms from the power station. The supply from the reservoir to make up reservoirs of power station is through open
concrete channel and the flow is by gravity. The carrying capacity of the channel is 110 cusecs. The total requirement for the station is 0.15MT per day. The water supply to power station and colony is being taken from four clarifiers, which have a total capacity of 5200 tonnes per hour.
COAL SUPPLY
The entire requirement of coal to the power station is met by M/s Singareni Collieries Company Ltd from their Rudrampur, Yellandu, Ramachandrapuram, Manuguru mines, Kothagudem area where proved reserves of about 530 million tonnes of coal expected to be available.
TRANSPORTATION FACILITIES
A railway line of about 12kms was constructed from Bhadrachalam road railway station to power station site. This line feeds into the marshalling yard and branch lines of total length 15kms within the power house premises for movement of coal wagons, oil tankers and other materials. The Gajulagudem bypass line was laid and came into service to get the load wagons direct from manuguru mines.