Iron ore of size of 10mm-40mm (Lumps) and <10mm href="http://www.irfca.org/faq/faq-stock2.html">http://www.irfca.org/faq/faq-stock2.html
It is found that many times the wagon gates/doors do not close properly (as intended) because of wear and tear. This creates gaps of varying sizes. As a result, the loaded material (mostly Iron ore) comes out from these gaps during transportation. This problem is more evident in case of wagons that are loaded with fines.
To plug the gap, gunny bags are used, to seal the doors and prevent ore spillage throughout the entire the journey of transporting ore from loading point to the destination.
While gunny bags help to avoid transit loss, it creates problems at the destination. For e.g. disposal of worn out gunny bags, improper sealing, and difficulty in positioning the gunny bags for sealing, while the doors are closed.
It is desirable to have cost-effective and simple methods to plug the gaps around the wagon door.
The solutions must meet the following requirements:
Please refer to the link to have closer look at the image to see the existing method of sealing the wagon doors using Gunny bags - https://www.dropbox.com/s/h73jvsgmy84l43b/IMG_20171206_233030.jpg?dl=0