Application of Laser Particle Size Analyzer in Pulverized Coal

Pulverized coal is primarily used as a high-efficiency fuel in large thermal power plant boilers. Its fine powder form ensures thorough mixing with air, resulting in efficient and stable combustion. It is also widely used in cement rotary kilns, metallurgical blast furnace injection, and modern coal chemical industries (such as coal-to-gas), serving as a vital energy source and raw material for the industrial sector.

Testing the particle size distribution of coal powder is a very important and basic task, which is of key significance in all aspects of coal utilization.

1. It directly affects combustion efficiency. If the particle size is too coarse, the pulverized coal will not burn fully, resulting in increased heat loss from incomplete mechanical combustion and reduced efficiency. If the particle size is too fine, it will easily coke in the furnace or burn too violently, affecting safety.

2. Particle size affects the power consumption and equipment wear of the coal mill. By monitoring the particle size, the operation mode of the pulverizing system can be optimized to minimize energy consumption and reduce wear of grinding components while meeting combustion requirements, thus saving operating costs.

3. It is also related to the control of pollutants such as nitrogen oxides (NOx). A uniform and reasonable particle size distribution can make the combustion process more controllable and help reduce emissions.

Therefore, particle size testing is the basis for achieving refined management of the coal combustion process and clean and efficient utilization, and is an indispensable link in improving economic benefits and safety and environmental protection performance from the source.

This time, Winner2008B is recommended to test the particle size distribution of pulverized coal. Its testing range is 0.01-1200μm, and it is a large-range wet particle size analyzer.

Winner2008B features a unique double-sided optical path design, a fully integrated load-sharing system, and unconstrained free fitting technology. This significantly improves the instrument's accuracy and performance. Its testing range covers the entire millimeter, micron, submicron, and nanometer ranges.

Measuring instrument information is as follows:

The video of measuring particles is as follows：