Gravimetric Coal Feeder / Load cell coal feeder : FAISAL AHMED
A gravimetric coal feeder is a device used in power plants and industrial processes to accurately measure and control the flow of coal into a boiler or furnace based on its weight. Unlike volumetric feeders that measure coal flow by volume, gravimetric feeders measure it by weight. This approach provides greater accuracy and control, making it crucial for maintaining consistent combustion and energy production in coal-fired systems. Gravimetric coal feeders typically use load cells or other weight-sensing mechanisms to achieve precise measurement and control of coal flow #gravimetric #gravimetriccoalfeeder #coalflow
CALIBRATION::
Calibrating coal feeders in a power plant is crucial for maintaining accurate and consistent fuel delivery, which is essential for efficient and safe operation. Here are the general steps involved in coal feeder calibration #coalfueldelevery
Preparation: Ensure that the coal feeder and associated equipment are in a safe condition for calibration. Shut down the feeder and lock out/tag out the power source to prevent accidents #feeder #coal #coalscale
Weighing System: Most coal feeders use a weighing system to measure the coal flow. Calibrate this system using certified test weights. Ensure that the scale is properly zeroed before calibration #belt #loadcell .
Belt Speed Calibration: If the feeder uses a conveyor belt, calibrate the belt speed by measuring the actual speed and comparing it to the setpoint. Adjust the speed controller as needed #Beltspeedcalibration.
Material Testing: Collect a sample of coal from the stockpile or supply source for testing. This sample should represent the coal's typical characteristics, including size distribution and moisture content.
Feeder Calibration: Start the coal feeder and run it at a specified load for a set duration. Measure the actual coal delivery rate during this time using the weighing system #coalfeedercalibration
Adjustment: Compare the measured delivery rate to the desired rate. If there's a discrepancy, adjust the feeder's settings, such as the belt speed or feeder speed control, until the desired rate is achieved.
#loalcellcalibration
Repeat and Fine-Tune: Repeatedly run the calibration process and make minor adjustments as necessary until the feeder consistently delivers the required amount of coal accurately.
Documentation: Maintain thorough records of the calibration process, including settings, test results, and any adjustments made. This documentation is essential for future reference and troubleshooting.
Regular Maintenance: Schedule regular maintenance and calibration checks to ensure the coal feeder continues to operate accurately over time. Environmental conditions and wear and tear can affect calibration. #yamatocoalfeeder
Safety Precautions: Always prioritize safety during calibration. Follow established safety protocols, and involve qualified personnel who are trained in working with power plant equipments. #yamato #loadonweight
2 сен 2023
