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AE—Automation and Emerging Technologies: Improving the Control and Accuracy of Slurry Spreaders

✍ Scribed by I.M. Scotford; T.R. Cumby; P.F. Inskip

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
398 KB
Volume
79
Category
Article
ISSN
0021-8634

No coin nor oath required. For personal study only.

✦ Synopsis

A prototype slurry spreading system, based on a commercially available pump discharge tanker, was designed, built and tested. The system featured a positive displacement slurry pump, an electrically operated #ow control valve and a novel spreading boom "tted with #uidic diodes.

The prototype slurry spreading system was tested generally in accordance to a draft international (European Committee for Standardisation) standard, and achieved a controlled, even application rate. By monitoring pump speed and valve position, the discharge rate from the tanker could be predicted to an accuracy of $2% of the maximum #ow rate. Using this system in conjunction with a control system enabled the application rate to be controlled to an accuracy of $1)5 m ha. In addition, the novel #uidic diode boom achieved lateral average deviation values which were consistently better than 9%.

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