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Physicochemical Index of Preheated Air Chamber of Fire-resistant, Wear-resistant and Heat-insulating Material for Circulating Fluidized Bed Boiler

Words:[Big][Medium][Small] Mobile Page Two-Dimensional Code 2018-10-15     

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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