The heating furnace is mainly composed of a regenerator insulated by refractory materials (dense insulating materials), a hearth that supports and transports heating elements, a furnace body, and a heat recovery system. The heating furnace uses oil, natural gas, electricity, and coal as the main fuels as heat sources. The furnace temperature and pressure are controlled automatically, of course, it can also be controlled manually. Refractories for heating furnaces play an important role in controlling energy consumption and improving the efficiency of heating furnaces. The service life of the refractory lining and the production efficiency of the heating furnace depends to a large extent on the correct selection of refractory materials, refractory design results and accurate masonry methods.
The role of refractory materials for heating furnaces
The function of the refractory lining of the heating furnace is to prevent the heat loss of the furnace body and to ensure that the surface temperature of the furnace body is low. To meet the safe working conditions around the furnace body of the heating furnace, thereby helping to achieve the unit fuel consumption target. The design and structure of refractory materials also fully consider the problem of minimizing the heat loss of sidewalls, furnace roof, and furnace bottom.
Advantages of advanced refractory solutions for heating furnaces
Generally speaking, refractory solutions for heating furnaces include a complete set of solutions for new projects and upgrading projects. At the same time, it also includes shotcrete refractory technology solutions. And simple and quick refractory masonry technology, thereby greatly shortening the furnace shutdown time for relining and reforming the heating furnace. The advantages of advanced refractory solutions for heating furnaces are as follows.
- Practical and reliable heating technology. For various types of heat treatment furnaces, the working temperature can reach 1500°C.
- The energy-saving effect is remarkable. With rich professional technology and the best selection of refractory products, it can make the life of refractory lining longer and better heat preservation performance.
- Simple process and short shutdown period. Through rapid masonry technology, shorten the lining change time and maximize production efficiency.
- Provide users with high-quality technical services through reheating project experience. Including various general contract projects, maintenance, and improvement projects.
Monolithic Refractories Solution for Heating Furnace
Nowadays, refractory materials of masonry heating furnace are increasingly using refractory materials of an integral structure, instead of refractory bricks in the past. The main advantage of the improvement from refractory bricks to the Monolithic refractory structure is to reduce the downtime of the heating furnace and improve the production efficiency of the heating furnace. The overall furnace lining can also minimize the intermediate downtime and maintenance costs for refractory relining, and can also improve the thermal stress generated by frequent cooling and heating during maintenance. If refractory bricks are used, the number of joints in the refractory brick structure is large. Hot gas can easily transfer heat through the refractory brick lining, which leads to an increase in the temperature of the furnace shell. However, the number of joints in the overall refractory lining structure is small, which has little effect on the temperature of the furnace shell. The comparison between the two schemes of refractory bricks and integral refractories is as follows.
| Items | Refractory Bricks | Monolithic Refractories |
| Refractory Mortar | Yes | No |
| Corroded Surface | enlarged due to mortar joints | smaller. |
| Physical Properties | Soaking and pre-burning. | Depends on the temperature gradient. |
| Pore Diameter | Usually larger. | very small. |
Rongsheng Refractory Manufacturer
Rongsheng is an experienced refractory manufacturer and supplier. After years of development, Rongsheng already has an advanced refractory brick production workshop and a fully automatic unshaped refractory production line. At the same time, Rongsheng also established an engineering team to provide refractory service and technical support for the overall construction of various thermal furnace equipment. For more information about Rongsheng refractory manufacturers and Rongsheng refractories, please contact us. We will provide you with services according to your specific needs.
