As many cement plants will testify, cleaning cement and raw meal silos can be a dangerous, time consuming, costly and tricky job. Nowadays, most cement plants try to emphasize and enforce stringent safety policies. A demand for SAFE silo cleaning has long been overdue.
Despite a growing awareness that safety is a major factor when performing a silo cleaning task, there are still cases whereby cement plants have chosen to ignore the huge risks involved in undertaking such activities. In some instances, the danger posed to workers is so serious that innocent lives have been lost. With that in mind, cement plants must recognise that silo cleaning is a highly professional job that needs to be performed by qualified specialists who are able to minimise the exposure to risks posed to human lives, by incorporating skill, experience and technology.
In many cases, the discharge area of the silo provides one of the biggest challenges in silo cleaning. Loose material has to be removed from the silo first and huge lumps of hardened cement are commonly found blocking the passageway during the extraction of material from the silo. In the past, the only available solution was to either pump compressed air through an improvised opening at the discharge gate, or by completely removing the discharge chutes itself. However, neither method has been proven to be effective or efficient.