Dr.-Ing. Stefan Vogt

Do counterflow kilns hold the promise of an energy miracle? (Part 1)

The theoretical principles governing the energy consumption of counterflow kilns are explained and compared with the actual performance data of existing counterflow kilns. In addition, the advantages and disadvantages of different types of counterflow kilns are discussed and their energy conservation potentials compared with the energy consumption of fast firing kilns.

1 Introduction

According to research by Böger [2], Carl Emmel was awarded German Imperial Patent No. 13604 on May 1, 1880, for his counterflow kiln. The first reference to a foreign patent found by this author was made by Conrad Dressler on July 1, 1924 [3] concerning a tunnel kiln with two parallel channels through which trains of kiln cars travel in opposite directions (»1). It is not known whether a kiln of the type described was ever actually built.

In the 1930s and ‘40s, Riedhammer, Kerabedarf and Siemens-Schuckert built a number of counterflow kilns, some of which were electrically heated...

Related articles:

Issue 2020-4 Keramischer Ofenbau

EnerViT plus firing system ready for the market

The EnerViT firing system from Keramischer Ofenbau is now successfully in operation in over 35 kilns. Fields of application are oxidation-firing, gas-heated roller and tunnel kilns with firing...

more
Issue 2015-7

Cleia: Firing process and energy savings expert

Thanks to its latest successful projects and developments in energy management and firing processes, Cleia can now claim a leading position in the engineering of process solutions i.e. ­energy...

more

Cleia: Firing process and energy savings expert

Thanks to its latest successful projects and developments in energy management and firing processes, Cleia can now claim a leading position in the engineering of process solutions i.e. ­energy...

more
Issue 2018-5 Dr.-Ing. Stefan Vogt

Do counterflow kilns hold the promise of an energy miracle? (Part 2)

6 Counterflow kiln with forced circulation In the interest of ongoing development for counterflow kilns, the transition to forced circulation with the aid of supplementary circulation fans (»4) would...

more
Issue 2011-7-8

Solid-solid recuperation for increasing the energy efficiency of tunnel kilns

1 Background As an energy-intensive branch of industry, the clay brick and tile industry is constantly endeavouring to lower the energy consumption of existing equipment and searching for alternative...

more