Home Product Refractory insulation material
  • Efficient energy - saving insulation castable

Efficient energy - saving insulation castable

Refractory pouring material is a certain grade of refractory aggregate, powder, high temperature alumina and so on. According to the refractory aggregate is divided into: clay, high-alumina, corundum, siliceous, magnesia, chrome, zirconite and silicon carbide refractory castables.
brief introduction: HT-160A type, HT135B type, HT-130C type, including high-performance wear-resistant refractory castable, is ramming, vibration method of construction of refractory materials.
  • Product introduction
  • Performance advantage
  • technical parameter
  • cases

Product introduction

Refractory castable, also known as water quality castable. Main model is HT-160A type, HT135B,HT-130C type, including high-performance wear-resistant refractory castable, is a ramming, vibration method of construction of unshaped refractories. With excellent fire resistance, the use of temperature (not less than 1600 ℃ -1100 ℃), the construction process must be made of template watering vibration not less than 5 minutes, natural conservation is not less than 72 hours, and then after the oven, oven , Wood oven, steam oven, coal-fired oven, fuel oven oven, oven time is not less than 10 days, and then take sample to test water, not more than 3% after the normal use. Widely used in electric power, metallurgy, steel, ceramics, petrochemical and other large-scale use of boiler furnace.

Refractory pouring material is consisted by a certain grade of refractory aggregate, powder, high temperature alumina and so on. According to the refractory aggregate is divided into: clay, high-alumina, corundum, siliceous, magnesia, chrome, zirconite and silicon carbide refractory castables. According to 8% water use ratio, add water and water reducing agent 0.001%, and then stir the use. According to the hardening method is divided into: gas hard or hardened refractory castable three.

Performance advantage

Refractory pouring material should have a good hygienic environment when used. Hardness can not be achieved after the deformation without damage to the performance, the general use of castable index and subject to aluminum content.

Refractory pouring materials are usually selected with water easy to stir, the accessories is high-alumina clinker, fused corundum as aggregate. Combined clay is an important raw material for plastics, in addition to its good plasticity and good adhesion, but also should pay attention to the clay sintering performance and alkali content indicators. Plastic can be mixed with a certain amount of clay, with its masonry furnace if the water is too much, then the shrinkage will be too large and cause furnace body damage. Add the right amount of alumina and other fine powder, you can reduce the drying shrinkage and high temperature heating shrinkage. During the oven temperature control from 50 ℃ to 250 ℃ range, according to the oven program curve for oven. Usually castable heated to 900 ~ 1100 ℃ or more into the sintering, increased cold strength. The thermal strength is higher than that of the cold state before 900 ~ 1100 ℃. When the temperature reaches above 1700 ℃, the part of the castable is softened, the hot strength is lower than the cold state, and the temperature is higher Strength and cold intensity showed a completely different trend, the thermal strength decreased gradually, and the cold intensity continued to increase.

The scope of application of refractory castables:

Circulating fluidized bed boiler lining, chain furnace as a whole pouring, as well as the top of the furnace and flame belt cyclone separator's anti-wear treatment.

Refractory pouring material construction process:

This material is constructed by vibration compacting method. Before construction, the required parts and blank blanks are made to be tight and fast, and the joints of the blanks are finished. The correct anchors are important for supporting the flaky castings, using rigid anchoring nail tips, anchoring nails up and down about 150 mm to 250 mm, and the thickness of the material can be determined according to the design of the different furnaces. Keep the expansion joints.

Refractory pouring materials's storage

Avoid storage in open air, prevent direct sunlight. In Summer,it should be stored in a cold and dank place, in winter with antifreeze measure.

technical parameter

cases