The construction steps of refractory castables for the second-stage reformer lining are a complex and delicate process involving multiple key links. The following are the construction steps explained in detail in a professional tone:
1. Preparation before construction
Before construction, it is necessary to ensure that the interior of the second-stage reforming furnace is clean and free of debris and that the furnace structure is intact. At the same time, check the quality of refractory material castables to ensure that they meet design requirements and relevant standards. In addition, prepare the tools and equipment required for construction, such as mixers, vibrators, formwork, etc., and make sure they are in good condition.
2. Mixing and transportation of refractory castables
According to the prescribed proportions, thoroughly stir the components of the refractory castable to ensure uniform mixing. During the mixing process, the amount of water added and the mixing time are strictly controlled to ensure the performance and construction quality of the castables. After the mixing is completed, special transport tools are used to transport the refractory material castables to the construction site.
3. Pouring and Vibration
Lay a layer of refractory castable evenly on the furnace lining template, and the thickness should meet the design requirements. During the pouring process, pay attention to controlling the pouring speed and thickness to avoid quality problems such as hollowing and cracking. At the same time, use a vibrator to vibrate the castable to remove air and excess moisture and improve the density and strength.
4. Maintenance and mold removal
After the pouring is completed, the refractory castables are cured. During the curing period, keep the ambient humidity and temperature stable to prevent the castables from being affected by excessive drying or temperature changes. The curing time depends on the type and thickness of the castable, and generally needs to reach the specified time. After the maintenance is completed, remove the formwork and check the flatness and quality of the furnace lining.
Through the above construction steps, it can be ensured that the construction quality of the refractory material castables for the second-stage reformer lining meets the design requirements, providing reliable guarantee for the normal operation of the furnace body.
