ºÚÁÏ×¨Çø

Molybdenum Wall: Flow Barrier for optimal glass quality in melting furnaces

Date: 20 January 2025
Source:
Molybdenum Wall: Flow Barrier for optimal glass quality in melting furnaces
Photo source
Horn Glass Industries

Date: 20 January 2025

The molybdenum wall is a crucial component in melting furnaces, enhancing glass quality by preventing short-circuit flow and ensuring optimal refining processes.

The molybdenum wall is used in basins of melting tanks in the area after the hot spot to separate the melting part from the refining part and thus prevent a short-circuit flow. It acts as a flow barrier, forcing the bottom glass to rise into the hot area of the hot spot, where it dissolves the last relics from the batch to refine bubbles in the glass. This ensures a better quality of the molten glass with a comparable energy input and/or a higher melting capacity with the same glass quality.

The molybdenum wall is installed in the basin of the furnace across the entire width of the basin between refractory bricks placed in front of and behind it. The molybdenum wall is anchored in the floor and stands stress-free between these bricks. 

It consists of individual molybdenum plates that are held in molybdenum rods. The rods are anchored in the ground. The design takes into account the different thermal expansion of the various materials. 

The Mo-Wall is characterised by the fact that its function remains unrestricted until the end of the furnace journey.

The wall is suitable for all standard glass types and all fossil-heated furnaces with and without boosting.

The exact dimensions are determined depending on the application.

During tempering and until the furnace is completely filled, the space between the AZS blocks is provided with a safety layer to prevent unwanted oxidation and sublimation of the molybdenum metal.

Features:

  •  Improved glass quality
  • Greater flexibility
  • Permanently secured function until the end of the furnace service life
  • Simple design and installation
  • Can be used in fossil-fuel heated furnaces, also with boosting

Technical data:

  •  Width of the wall: can be adapted to any width of the furnace                                           
  • Operating temperature: ... 1630 °C
  • Glass types: Alkali - lime - glass, borosilicate glass, aluminosilicate glass, etc.
600450 Molybdenum Wall: Flow Barrier for optimal glass quality in melting furnaces ºÚÁÏרÇø

See more news about:

Others also read

ºÚÁÏרÇø industry professionals are being urged to secure their place now for the milestone 20th Furnace Solutions Conference taking place in St Helens, UK, on 3–4 June 2026.
HORN continues to advance sustainable glass production with its innovative E-Fusion Power Boosting System, designed to increase melting efficiency, improve glass quality and support manufacturers in reducing COâ‚‚ emissions.
HORN was entrusted by Gerresheimer to replace its existing all-electric melting furnace with a new state-of-the-art all-electric furnace at its Momignies manufacturing plant in Belgium.
For over a decade, Weha-Therm has relied on Softsolution to enhance quality assurance through advanced, automated inspection systems and continuous innovation.
This video shows how to use the new Glaston FlatGuard.
Registration is now open for the 2026 Furnace Solutions Conference, organised by the Society of Glass Technology, which returns to St Helens, UK, on 3–4 June 2026.

Add new comment

From industry