Firing Kilns

As with dryers, there are many modifications of kilns for firing building ceramics, differing in design, size, and type of fuel used. However, only a few types have gained widespread industrial acceptance by combining high productivity with energy efficiency.
By design, kilns can be divided into the following classes:

1. Ring kilns
   This category includes all kilns of this type, from the historic Hoffmann kilns (over a century old) to kilns with removable roofs. This type is considered technologically outdated and is no longer constructed, but existing units are modernized and continue to operate.
2. Chamber kilns
   This type is used for firing specialized products (such as acid-resistant materials). They provide high temperatures and long soaking periods but have low productivity and limited automation capability.
3. Tunnel kilns
   The most widely used type. They require kiln cars but offer the best energy efficiency combined with high productivity. These kilns can also be fully automated.

PLINFA works with all types of kilns.
For ring kilns, we offer modernization solutions that improve firing quality, reduce fuel consumption, and in some cases increase productivity.
We have experience in designing and constructing chamber kilns used for firing acid-resistant products.
However, our greatest expertise and technological solutions are related to tunnel kilns. For existing kilns, we provide numerous modernization options. In cooperation with laboratory specialists, we can optimize firing regimes to reduce fuel consumption, decrease reject rates, and increase productivity.
For coal-fired kilns, we supply coal burner systems that significantly improve firing performance compared to manual coal feeding.
Naturally, PLINFA also designs and constructs new kilns of various capacities, with kiln car widths from 2 m to 9 m and lengths up to 250 m, including kilns for clinker products.