Further developed

Throw screening from the beginning of the 20th century AD to the present demonstrated by the example of indirectly excited throw screening machines

Summary: The development of engineering sciences played an important role in the

screening practice from the 20th century. Growing requirements, as regards increasing variety, fineness and throughputs of the materials to be screened led to the further development of existing or new screening principles for the classification of special materials to be screened. This development is demonstrated by the example of throw screening focussing on the indirectly excited screening machines. Directly excited throw screening machines will be the topic of a third contribution.

1 The influence of engineering sciences on the screening practice in the 20th century taking into account demographic facts

The scientific-technical revolution, beginning in the 19th and continued in the 20th century, caused enormous changes in engineering, science, economy and society. Various branches of engineering experienced a considerable upward trend [1] and basic sciences such as mathematics, physics and chemistry received an important impetus. In about the mid-20th century, the engineering sciences became established as independent technical-scientific disciplines, such as mechanical...

Related articles:

Issue 01-02/2010

Fine and very fine screening

Throw screening from the beginning of the 20th century to the present demonstrated by the example of directly excited throw screening machines

1. Throw screening machines directly excited by means of bumpers or impactor bars The development of bumper-type screens [1], which had begun in America at the beginning of the 20th century, was...

Issue 05/2015

Which screen for which application?

Key strengths of JOEST, a medium-sized company and international leader in vibration technology, are its great flexibility, many years of experience in vibration technology as well as its creativity...

Issue 05/2019 Optimization

Direct excited polishing screens for fertilizer

M?odification on the existing concrete steel beams was very limited and had to be respected in the new machine design. Installed at the top of the building with limitation in height, respecting on and...

Issue 05/2022 thyssenkrupp CK+

Circular-motion vibrating screen with many innovative features

For many years now, screens of the CK line have already been successfully used worldwide for screening of aggregates, gravel, ore and coal as well as in the recycling industry. They have impressed...

Issue 10/2015

New production line for Metso ­screening machines­

Given the different design features, Metso decided to subdivide their successfully established screening machines into two different production lines. From now on they are named Metso PREMIER SiebeTM...