Sustainble manure scraping system developed by HAN Mechanical Engineering students
Dave Wieskamp and Jurgen Eringfeld, HAN Mechanical Engineering students, have developed a sustainable manure scraping system during their internship. This machine can be used to remove solid manure from the manure pans to allow urine to pass through. This contributes to methane and emission reduction. The system is also user friendly and low-maintenance.
The students have developed the manure scraping system for manure pans/gutters together with Wopereis, Jovas Agro International B.V. and Wijnen Machines. The name is already there: DUOSEP, the system for daily manure scraping.
What was the purpose of the internship?
The assignment was to develop a manure transport system that would score high on emission reduction, simplicity and user friendliness, while being low-maintenance at the same time. After several conversations, company visits and drawings, a number of prototypes have been made and tested. These already were very promising!
Dave and Jurgen made an inventory of the requirements that the manure scraping system had to meet. One of the things they looked at was which materials would be most suitable in an environment with a lot of urine and solid manure. In addition, they also investigated a similar, small, manure scaping system on a small cattle farm.
Subsequently, various concept sketches were put on paper. These were translated into 3D designs in SolidWorks. The internship company, Wopereis, used the drawing and parts list to produce the necessary parts for the prototypes.
What was the result?
A number of prototypes were produced. The sliders have a variation of brushes (coarser and finer bristles), hair thickness and attachment methods. These scrapers are attached to a T-shaped chassis. A steel cable and electric motor are responsible for moving the sliding system.
The students tested the various slides on a test setup. During the test phase, it was assessed which of the prototypes had the highest scores on moving solid manure and the passage of urine. They also checked whether the sliding system folds up during the return of the manure scraper.
What were the conclusions from the test setup?
The test setup showed that the principle was working well. The end product is suitable for several different manure pans, is reliable and the materials can withstand the effects of solid manure and urine.
The Mechanical Engineering students also made recommendations about the thickness of the steel cable and the materials that should be used for the clamps and bristle types. This way, they laid a good foundation for further fine-tuning of this type of manure scraping system.
Jurgen Eringfeld & Dave Wieskamp