Frequently Asked Questions

What sheet metal is the silo made of?

Our silos are mostly made of zinc coated sheet metal Z450 with a zinc coating thickness on both sides of 450g/cm2 (it is possible to order a silo made of sheet metal with a different zinc coating thickness, e.g. Z275 - 275g/cm2)

How is the dryer fired?

We use furnaces fired with natural gas or LPG. Generally, we offer our customers modulated strip burners, because they are easy to build, less prone to failures, easier-to-maintain (it is easier to find a fault) and thus less expensive in operation. At the same time, they are efficient enough for most of our investment projects.

How much does the implementation of an investment project cost?

We can give the total cost of an investment project only after a preliminary design has been prepared, because it depends on many factors. At each investment project it is necessary to visit the Customer's site in order to examine the site in terms of the geological structure, localization, existing technical infrastructure, etc. Then a preliminary design and a cost estimate are prepared.

How much does the preparation of an engineering design cost?

The design will be free of charge, if we implement the entire investment project.

How important is the thickness of the zinc coating?

The zinc coating thickness has a considerable impact on the stability and service life of the silo, ensures a greater resistance to corrosion and protects against perforation. This is particularly important in areas with a high humidity of air.

What may happen as a result of silo burst?

It may lead to collapsing of the silo.

What are benefits of well-designed silo?

In order to prevent problems associated with the flow in a silo, a good design of the silo is needed. The most logical (and most beneficial) solution for storage of bulk materials is a silo with a flow induced by the gravity force. The silo then obtains a cylindrical or rectangular form with a hopper at the bottom. The hopper directs the product towards the hole, which is also the most common cause of problems.

They include: an irregular outflow, segregation, deposition of the product, ageing or decomposition of the product, shocks, overflow, adhesion, or a situation where there is no flow at all.

Many of these problems can be mitigated by the use of special equipment, or - in order to find a solution - the method of trials and errors may be used.

Of course it is better to avoid the problems. This is possible by using the measurements of product properties in the design phase. That's because flow properties of a product determine the geometry to be used.

During the design process, it may appear that the use of a "normal" silo is not possible. So in order to know it, there is no need to make efforts and bear costs in practice.