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Physicochemical Index of Preheated Air Chamber of Fire-resistant, Wear-resistant and Heat-insulating Material for Circulating Fluidized Bed Boiler
Preheated air chamber | Medium insulating castable YG-ZJ-1.6 |
Bauxite aggregate 60 Floating beads 10 Silicon powder 5 Additive 25 |
Fire resistance > 1500 C, bulk density < 1.6 g/cm 3; Normal temperature compressive strength > 30 Mpa; flexural strength > 10 Mpa; The change rate of reheating line is 0.2%, and the thermal shock stability is more than 20 times. Maximum operating temperature 1300 C |
4 years Above | The main material is medium insulating castable. This part should have three physical properties: thermal insulation, fire resistance and thermal shock stabilization. The bauxite aggregate and floating beads used in our factory are composed of two main raw materials: (1) bauxite aggregate plays a role of fire resistance and thermal shock stability; (2) floating beads play a role of thermal insulation. Medium insulating castable produced by our factory has been used in fluidized bed area with good effect. |
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