TEIDE REFRACTORY SOLUTIONS, S.L.: HAS CAREFULLY STUDIED THE OXIDATION OF NON SHAPED OF SILICON CARBIDE-BASED REFRACTORIES.
TEIDE REFRACTORY SOLUTIONS, S.L. has developed a set of recipes with the main property of oxidation reducing.
After several years of research and based on our experience in the application of refractory concretes with low and ultra low ciment content to be vibrated and gunited, has as a result the adequacy of these concretes to the most different working conditions for works as:
- Urban or Chemical Waste Incineration
- Power Generation plants … among others.
The fact of Silicon Carbure’s Oxidation takes place according to the following reaction at a high temperature and over a long time:
** SiC + O2 = SiO2 + CO2**
The SiO2 undergoes cristal transformations for instance:
Tridymite with very important volume variations ; the result not only is the volume increase and the weight variation, but also a loss of Silicon Carbide of the concrete.
At the same time, also decreases the termal conductivity (which is the desired property), for example, from the gunited concreted, on bundles of tubes in boilers heat using.
In order to reach an Optimization of Concretes and Silicon Carbide Masses, TEIDE REFRACTORY SOLUTIONS, S.L., performs the following tests and quality controls:
- Variation of Weight at different temperatures.
- Variation of Weight at fixed temperature for a long time.
Oxidation Measuring Machine.
Several photos belongs to different coatings made with Non Shaped material.
- Concrete applied by a Conventional Gunite Machine.
- Concrete applied by a Special Gunite Machine property of Teide in dry.
SPECIAL TEIDE’s GUNITE EQUIPMENT:
- Water injection at very high pressure in discharge of material.
- Mechanical speed Variator for better accuracy of material.
- Maximum flow of air and water.
- Low rejection of material on rebound.
- Low dust over gunning operation.
Frequent tests of manufactured and used materials at the end of their life are done to control the chemical and physical properties and its evolutions along time.
TEIDE REFRACTORY SOLUTIONS, S.L. has supplied and installed non shaped Silicon Carbide materials as:
- PYROSHOT MCC SIC 80 : Gunnable without powder; extremly low rebound.
- PYROFORM TIX-900 FP : Vibration cast.
- PYROFLOW 900 F1: Based to fill between SIC tubes and plates.
- PYROFORM TIX-60/300: Vibration cast.
- MASILLA TIX-90 F3: To be kneaded in place.