Our traditional company can look back on a long history: from its beginnings with the first product developments in 1880 to the founding of today’s THEISEN GmbH in the 1920s and its current international involvement – almost 145 years have passed since then in which THEISEN has supplied state-of-the-art engineering technology for gas cleaning systems.
Herewith our most important milestones:
1880
The history starts …
with the invention of some important developments/break-throughs by the company founder Eduard Theisen: For example the first process for the production of milk powder, as well as the development of the THEISEN Gas Washer for cleaning off gas from blast furnaces. At the end of 19th century it was already possible to use the cleaned gasses in the gas machines of the steel industry to generate electrical power.
Around 1890
The first patent for the THEISEN Gaswasher
The company receives the first of numerous patents for the „Theisen Gaswasher“
1900
Gas cleaning systems for the scrubbing of blast furnace gas
THEISEN provided a Gas Cleaning System to the HoerderBergwerks – und Huettenverein for a blast furnace. In the following years thousands of Disintegrators were delivered.
1911
Hans Eduard Theisen takes over the business
After the passing of the company founder, his son Hans Eduard Theisen took over the business. In 1914 he relocated the fabrication to the factory Karl Saaler, today called EHT Werkzeugmaschinen GmbH. One section of EHT is dedicated for the building of the gas washers.
Since 1920
Throughout Europe the gas washers are used…
…for the scrubbing of off-gasses in the iron and steel industry in blast furnaces, smelter, gas generators and coke ovens.
Shortly afterwards they are used in the gassification processes of peat, wood, lignite (brown coal) and coal.
15 July 1926
Merger to „THEISEN GmbH München“
A merger of the firms Ed. Theisen, München and A.V.G. Allgemeine Vergasungsgesellschaft m.b.H to form a new company „THEISEN GmbH München“. The firm was located, where it still is to this day, at Friedrich-Herschel-Str. 25 in Munich.
The new firm incoporates a wide spectrum for the application of the Disintegrator: cooling, scrubbing and tar separation during the cleaning of process and synthetic gases.
1920s and 1930s
Theisen provides world wide
Theisen provides licenses to the USA and delivers world wide.
1931
50% of the shares Eisen-und Hammerwerk GmbH
The family Theisen aquires 50% of the shares Eisen-und Hammerwerk GmbH, which increase to 100% by 2006.
1939 – 1945
Continuation of operations
Throughout the war Theisen GmbH was able to continue with their operations.
1950 till 1960
Theisen provides licenses to Japan, UK and Brazil
The investment requirement of steel industry increases. Theisen provides licenses to Japan, UK and Brazil.
1968/1970
Co-opeation agreement with the GHW
Theisen GmbH and Gesellschaft für Hüttenwerksanlagen (GHW) close a co-opeation agreement, where Theisen is the exclusive supplier of off-gas cleaning plants for the GHW Cupola furnaces.
1985
Establishment of TVT THEISEN
With the establishment of TVT THEISEN Verfahrenstechnik, new business ventures are exploited: recycling of solvents, ground water cleaning, adsorbtion and absorbtion plants for air emmissions and process water plants.
TVT developed plants for the reduction of emmisions of organic solvents with incorporated recycling of process materials for re-use.
1992
SHT Industrieanlagen GmbH is established
SHT Industrieanlagen GmbH is established to bundle the capabilities of the associated firms:
- Schubeis (Machine fabrication)<br>
- Hellingrath (process control engineering)<br>
- THEISEN (gas cleaning)<br>
The Theisen hot gas filter is developed for the rock wool furnaces and can accommodate temperatures up to 800°C.
1995
Gasification of refuse
Delivery of a pyrolysis gas cleaning plant in the gasification of refuse.
2004
THEISEN Engineering (Pty) Ltd is established in South Africa
THEISEN Engineering (Pty) Ltd is established in South Africa and from the beginning achieves good success.
2007
Complete gas cleaning plant for a ferrochrome furnace
Delivery of a complete gas cleaning plant for a ferrochrome furnace to Middelburg South Africa.
2010
Delivery of four identical gas cleaning plants to Kazakhstan
Theisen receives the biggest supply contract in the history of the firm for delivery of four identical gas cleaning plants to Kazakhstan.
2011
Plant for the scrubbing of gases as fuel
Theisen delivers a gas cleaning plant for the scrubbing of gases to be utilised as fuel in a cogen project.
2013
Prototype of the CDC
Development of the prototype of the Cooler Disintegrator Compressor (CDC).
2015
Relocation of the production facility
Signing of a co-operation agreement with Wehrle Werk AG and relocation the production to Wehrle Werk AG Emmendingen.
