>>Ordinary
Boiler-Used Unshaped Refractory Material
Such kind of product is manufactured
adopting the same kind of unshaped refractory materials
used for boilers of power stations in foreign countries
and research-developed by the Power Construction Research
Institute of the Energy Sources Ministry on the basis
of the country available resources. The material is
applicable to all the ordinary boilers.
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Such hi-temperature and slightly
expanded refractory material is of constant-temperature
and plasticity properties, easy for construction
and sealing etc.so the deficiency caused by boiler's
expanding with heat and contracting with cold can
be completely resolved while the overhaul period
for boiler's wall and its top sealing is further
extended. GD-170 refractory casting material possesses
its fine properties of hi-temperature, hi-intensity
and non-contracting after-hi-temperature-firing,
besides, it can make up for the deficiency of slow-drying
of plasticity refractory material, benefits to large
area's construction and also can be used with hi-temperature
and slightly expanded plasticity refractory materials.
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Name,
Project, Target
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refractory casting materical
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hi-temperature and slightly expanded refractory
material
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Volume Densityg/cm3
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2.1~2.3
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2.2
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Intensity
of Anti-Pressing
MPa
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110℃*24h
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≥25
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≥15(7.0)
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800℃*3h
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≥25
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1200℃*3h
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≥25
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1300℃*3h
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≥22
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1400℃*3h≥12(5.5)
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Linear Change
Rate
%
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800℃*3h
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+_0.05
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1200℃*3h
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0~+0.5
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1300℃*3h
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0~+2.0
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1400℃*3h+2
~+3.5
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fire-resisting degree℃
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1650~1700
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plasticity
%
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40~60
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Chemical Content
%
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Al2O3
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45~50
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SiO2
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35~40
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>>Circulation
Vulcanized Bed-Boiler-Used Hi-Intensity and Abrasion-Resisting
Shaped Products
Such kind of series products have special features
of hi-intensity and wear-resistance, slag-corrosion-resistance,
fine heat-shocking stability and anti-hi-temperature-creeping
etc., mainly used in easy wearing parts of combustion
chamber and whirlwind separator of circulation vulcanized
bed-boiler.
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Name, Project,
Target
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Zirconium-Corundum
Brick
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Silicon Carbide
Brick
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Fibrolite Brick
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Zirconium-Mullite
Brick
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Mullite Brick
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HMS Highly Abrasion-Resisting
Brick
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Sintered Phosphate
Brick
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Chemical Content
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Al2O3
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45~75
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60
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65
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70
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60
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72
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SiO2
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35
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26
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24
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ZrO2
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12~28
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8~10
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SiC
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70~90
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~20
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physical property
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Volume Density
g/cm3
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2.8~3.1
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2.5~2.7
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2.6
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2.7
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2.5
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2.5
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2.7
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Intensity of
Cold Pressing
Mpa
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110
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75
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100
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105
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80
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80
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90
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phaneropore rate %
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18
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22
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18~20
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19
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21
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20
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20
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Linear Change
After-Firing
1350℃*3h
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0.01
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0.01
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0.02
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0.02
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0.02
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0.02
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0.02
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thermal shock stability 1100℃
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35
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40
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40
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40
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30
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30
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35
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Highest Use Temperature
℃
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1500
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1500
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1450
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1500
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1450
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1450
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1450
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Degree of Anti-Abrasion CC
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<6
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<7
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<6
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<6
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<7
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<7
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<8
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