Introduction
Screen heating is a method used to eliminate screen blinding, a common problem in various industries, by using electrically heated wire cloth. The idea of screen heating dates back to the early 20th century, with the first commercially available system developed in 1947 by F.R. Hannon & Sons (now Hanco International). This innovation proved to be a game-changer for industries that relied on wire screens, such as the clay industry.
What is Screen Blinding?
Screen blinding occurs when the material being processed, such as clay or dirt, clogs the holes in the screen. This can lead to reduced production efficiency and increased maintenance costs. The introduction of heat to the wire cloth reduces the surface tension of the material, making it easier to pass through the screen.
History of Screen Heating
The concept of screen heating has its roots in the early 20th century. The first patents for electrically heated screens were filed around 1924, with the first commercially available system developed in 1947. The first applications of screen heating were limited to the clay industry, but it soon spread to other industries.
Key Facts
- The first commercially available screen heating system was developed in 1947 by F.R. Hannon & Sons (now Hanco International).
- The first applications of screen heating were limited almost exclusively to the clay industry.
- The system consists of electrically heated wire cloth, which reduces the surface tension of materials being processed.
- Screen heating was initially used to eliminate screen blinding, but it has since been adopted in various industries to improve production efficiency.
Examples of Screen Heating in Action
Screen heating has been implemented in various industries, including the clay industry, mining, and food processing. The system has been used to improve production efficiency, reduce maintenance costs, and increase the lifespan of screens.
Evolution of Screen Heating Technology
Over the years, screen heating technology has evolved significantly. The introduction of copper and copper cables improved the system's electrical connection, while the use of silicon-bonded fiberglass enhanced the insulation of screen boxes. Flexible shunts were also used, but their use was eventually discontinued due to the difficulty of attaching the stationary transformer to a vibrating screen.
FAQ
What is screen blinding? Screen blinding occurs when the material being processed, such as clay or dirt, clogs the holes in the screen.
How does screen heating work? Screen heating uses electrically heated wire cloth to reduce the surface tension of materials being processed, making it easier to pass through the screen.
What were the first applications of screen heating? The first applications of screen heating were limited almost exclusively to the clay industry.
Who developed the first commercially available screen heating system? The first commercially available screen heating system was developed in 1947 by F.R. Hannon & Sons (now Hanco International).