Sharma, Atul ORCID: https://orcid.org/0000-0002-6756-4148, Bradley, Michael S A and Kaur, Baldeep ORCID: https://orcid.org/0000-0002-1762-3058 (2024) On the difference in pneumatic conveying properties of the same product from different manufacturers: a case study based on Quicklime. In: Proceedings of the 11th International Conference on Conveying and Handling of Particulate Solids. CHoPS 2024 Conference, Edinburgh, UK, pp. 73-74. (doi:10.5281/zenodo.14034595)

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Abstract

Quicklime plays a crucial role in infrastructure projects such as soil stabilisation, modifying soil properties and optimising moisture content. It is often handled pneumatically due to its hazardous nature and reactivity. However, the design of pneumatic conveying systems must carefully consider the specific conveying characteristics of the bulk material. These characteristics can be obtained by undertaking conveying trials in a laboratory. Experience has shown that industrial systems designed for a specific grade of a material may experience unreliable performance when handling material of nominally the same specification, obtained from different sources. This occurs due to variations in the material’s conveying characteristics, leading to challenges such as low throughput, pipeline blockage, and particle degradation.

Conveying trials were undertaken using an industrial-scale pneumatic conveying test rig that has a 120 metre long, 100 mm NB (nominal bore) pipeline. Five grades of quicklime were tested, showing that each grade exhibits a different conveying behaviour.

When the conveying data was applied to design an industrial conveying system, it was observed that for the same airflow and pipeline pressure drop, throughput for different grades varies from +19% to -15% as compared to the benchmark grade. This study demonstrates the importance of testing the material in the conveying test pipeline and obtaining the conveying characteristics in determining key design parameters for reliable pneumatic conveying systems.

Item Type:	Conference Proceedings
Title of Proceedings:	Proceedings of the 11th International Conference on Conveying and Handling of Particulate Solids
Uncontrolled Keywords:	pneumatic conveying, quicklime, conveying characteristics, pressure drop, blow tank conveying
Subjects:	Q Science > Q Science (General) T Technology > T Technology (General) T Technology > TS Manufactures
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Related URLs:	http://www.chops2024.ed.ac.uk/
Last Modified:	16 Mar 2026 15:15
URI:	https://gala.gre.ac.uk/id/eprint/52663

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