Applied Scientific Instruments Co., Ltd.

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Applications and Industries : Coal Industry

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Applications and Industries

Coal Industry

Bettersize instruments provide the particle size analysis data of coal industry products (coal, coal water slurry and coal ash).
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Particle measuring is of great importance for the production of coal products, especially the particle size distribution measurement, d90 particle size measurement,etc, these parameters are very important for the particle size analysis of coal, coal water slurry and coal ash.Thermal power plants generally smash raw coal into coal fines. The good combustion characteristics of coal fines can reduce incomplete combustion losses. In general coal crushing, the range of particle size distribution is mostly within 5-180 μm, and the particle size of coal fines should be controlled within 20-50 μm. The ideal particle size testing dispersion method for coal fines is dry dispersion (i.e., dispersing coal fines with compressed air). The gas pressure for dispersing coal fines should approach the actual pressure of the boiler to transport the coal fines. The Optimum operation of pulverised coal power stations is difficult to maintain especially when the coal can be sourced from different locations where its grind ability differs because of a high degree of variability in fuel properties and loading profiles. Because of this operators may apply boiler settings that are too conservative and thus the tuning can be far from ideal.

Imbalances in coal flow rates to each burner can negatively affect performance, safety, amount of NOx emissions, slagging formation and power consumption. Excessively coarse throughputs generate higher levels of unburned carbon in the ash making the byproducts less saleable. In addition a feed, which has been over milled, produces areas of high temperature (Hot spots) that lead to higher levels of NOx emissions and flame instability in addition to expensive overgrinding.

A kind of clean coal-based fluid fuel, coal water slurry not only has similar physical properties to heavy oil, it also has better combustion characteristics than coal. It is one of the most important ways of using coal cleanly and efficiently. The particle size optimization of coal water slurry in power plants can save potentially considerable funds by promoting production efficiency.
 
Bettersizer S3 Plus

The Bettersizer S3 Plus particle size and shape analyzer combines laser diffraction and dynamic image analysis in one instrument. It can measure the size and shape of particles  from 0.01 μm to 3500 μm. Its exceptional sensitivity for either ultrafine particles or oversized particles, and unsurpassed resolution, make it the most powerful size and shape analyzer for enthusiastic researchers who conduct top scientific research.

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Bettersizer 2600

The Bettersizer 2600 utilizes this laser diffraction technology. There are 92 photoelectric detectors to convert light signals from the scattering spectrum to electrical signals, which are transmitted into an intelligent software. By implementing the Mie scattering theory to the data and performing mathematical conversion, the complete particle size distribution can be derived.

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Bettersizer ST

The Bettersizer ST is an automated laser diffraction particle size analyzer designed for industrial quality control. Its patented DLOS (Dual Lens Optical System) guarantees the instrument to provide consistent and reliable particle size distribution results. The SOP (Standard Operating Procedure) and automated analysis procedures are designed to help you save valuable time for quality inspection. Skip complex operations with Bettersizer ST: Simply click "Start", add the sample, and Bettersizer ST will provide the particle size distribution analysis for you.

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27 มีนาคม 2566

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