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Online coal ash detection
Overview of HDS-9864A Online Radiation Coal Ash Analyzer System HDS-9864A online ash analyzer uses 241Am (60keV) as the low energy source and 137Cs (6
Product details
HDS-9864A Online Radiation Coal Ash Analyzer
System Overview
HDS-9864AType online coal ash analyzer, using241Am(60keV)As a low energyγSource,137Cs(662keV)As a middle energyγSource, when these two types of energyγAfter the radiation beam passes through the tested coal seam, two types are measured using scintillation detectors and nuclear special detectors after passing through the coal seamγThe counting rate of radiation. Then, using a computer to analyze the two types of strong and weak changesγBy analyzing and calculating the counting rate, the ash content of the measured coal flow can be obtained in real time.9864AThe Model X online ash analyzer is widely used in the detection of incoming coal quality in coking plants, power plants and cement plants, as well as the detection of ash content of middling coal in each process flow of coal preparation plants.
System performance
◇Ash content measurement accuracy: clean coal from non heavy medium coal preparation process (ash content)≤15%）When；Measurement accuracy better than0.5%；
◇Ash content in15%～30%time，Measurement accuracy better than1.0%；
◇Ash content is greater than30%time，Measurement accuracy better than1.5%.
◇Requirement for the measured coal flow: The mass thickness (beam position) of the measured coal flow on the conveyor belt should be greater than2.5g/cm3There is no systematic difference in ash content; Conveyor belt speed: less than5rice/Seconds; Granularity range: less than200mm；
◇Moisture influence: every change in moisture1%The ash content measurement value generally varies by about0.05%~0.1%(Related to coal type)；
◇Stability: Continuous measurement of standard blocks, arbitrary selection8Hourly data, any of which10The maximum deviation between the minute ash content value and the average value shall not exceed0.5%；
System functions
◇The same interface can display1Minutes10Minutes1Hourly grey value; Simultaneously provide10Minutes1Hourly, shift, daily, monthly, annual gray score, and query the average value within any interval;
◇Display and query the cumulative weight reference value of the tested coal flow;
◇Bring two routes4-20mASignal isolation output, capable of displaying multiple ash content information channels(sceneLEDLarge screen display, on-site LCD screen display)Timely display ash content data to operators
◇Automatic constant temperature: The system software can monitor the temperature changes inside the detector in real time and achieve automatic temperature control according to the set target temperature value(The control accuracy is0.2linear measure)；
◇Bring two routes4-20mASignal isolation input, with reserved data processing interfaces for moisture and calorific value information;
◇Automatically determine the working status based on the running condition of the belt and the coal flow on the belt.
◇It can achieve data communication with the centralized control system in the factory, upload relevant information to the monitoring management layer, and also view real-time ash monitoring information through the network;
◇The software can generate various rich data curves, print various data reports, etc;
◇Equipped with automatic calibration function for ash content parameters;
◇The same equipment can measure multiple types of coal and store data models for multiple types of coal;
Online Radiation Coal Ash Analyzer System Software Interface
Application areas:
It can be used in coal washing plants, coking plants, coal mines, power plants, chemical plants, cement plants and other large-scale coal consumption occasions.
Examples of practical applications:
————Online detection of ash content in clean coal in coal preparation plants
————Online detection of ash content in washed raw coal
————Provide ash feedback information for the automation of coal preparation process
————Online detection of ash content during coal loading and blending in coal preparation plants
————Online detection of ash content during power coal blending
————Detection and control of raw coal entering the warehouse according to its ash content size
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