STG DeNOx technology: Primary implementations giving energy savings and NOx reduction

STG has developed a LowNOx technology called DeNOx with the main elements you will find below described in short.

DeNOx elements overview for a 7 Port cross fired furnace: Interaction of STG Gas burners, Oxygen sensors and Air Curtain system with Lambda Control, OMC

Burner technology


STG DeNOx gas burner in action

DeNOx Burner technology is an essential key of DeNOx Technology.
It’s main targets are:

1. To avoid the early combustion, better to have a controlled delay in mixing of fuel and combustion air.

2. To produce a long, smooth flame with a wide area for heat exchange from flame to glass and batch, which is finally a low temperature flame with the same or even better energy transfer

Lambda control based on Zirconium oxide Oxygen sensors


Lambda Control in PCS7

Lambda control based on Zirconium oxide Oxygen sensors is another essential and indispensable element of DeNOx Technology which is required for any type of furnace or fuel.
The Lambda Sensor therefor is the essential measuring device.

STG Air Curtain


STG Compressed Air baffle

There are some cases of furnace design, which require more than a reliable sensor and an intelligent control loop to provide optimum combustion situation.

In such cases the Air curtain system, based on water-cooled or air-cooled dynamic air baffles, is used as a tool to control combustion air distribution over the ports of a block type regenerator without separating walls between the ports of a cross fired glass tank furnace.

Digital Furnace Camera Picture Analysis with OMC


Optical Melting Control

OMC Optical Melting Control means the use of video picture processing of a standard type furnace camera to extract additional information from what was formerly only used as an optical picture, and opens a new window to the furnace process.