Today, refractory manufacturers are also competing fiercely in this field. Under these circumstances, most manufacturers are doing a good job of attracting customers. But no matter what, people still need to learn and research when collaborating. Generally speaking, customers should pay attention to the priority choice of reliable manufacturers when looking for manufacturers.
The development trend of refractories is variety, organic chemistry, preferred refractory products and high density shaped materials, mainly environmental protection and energy saving. Along with the development trend of production technology, apart from the fire protection layer, heat insulation refractory products and light cast charge used for high temperature charge, high temperature ceramic fiber products are gradually introduced. In addition to the fire protection layer used for medium temperature charge, generally used for high temperature charge fire protection layer.
Refractory materials and thermal insulation materials that can bear the temperature of incineration should be selected according to the temperature. At the same time, the corrosion of organic waste gas by incineration is considered. According to corrosion resistance, the selected raw materials can be divided into three categories: good alkaline resistance insulation brick. Such as silicon carbide brick: corrosion resistance insulation brick, such as magnesium aluminum brick, magnesium brick, limestone brick; Good corrosion resistance neutral insulation brick, such as high aluminum refractory brick, steel jade brick, silicon carbide brick, carbon brick. Thermal insulation brick is divided into aerated brick and mass brick according to its proportion.
The following measures should be adopted for the temperature control of refractory engineering construction in winter: the engineering construction temperature of concrete refractory castable, plastic, spray paint, fireproof sand slurry, etc., should not be less than 5℃; The construction temperature of sodium silicate refractory castable, clay refractory cement and polyphosphate refractory fire castable shall not be less than 10℃; Refractory castables with low viscosity concrete as adhesive can be heated with mixing water, but the temperature should not be higher than 30℃. The temperature of heating water for fly ash cement refractory castable cannot exceed 60℃. However, organic chemical vulcanization accelerators may not be added to refractory fire castables.
The high-temperature structural compressive strength of refractories must be taken into account. Materials in use will bear certain burdens and damage. The structural compressive strength of raw materials can change greatly at high temperature, so the high temperature compressive strength must be taken into account. The advantage is that the load becomes soft. The application temperature of refractories must be less than the load softening point. For example, the fire resistance grade of clay brick is 1730℃, and its load softening point is 1350℃, so the high application temperature is only 1350℃.
