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Product Name:Clay Special-Shaped Brick Furnace Cover Brick
Product Description:
Special-shaped clay bricks. Those with one of the following classification characteristics are special-shaped clay bricks:
A. The mass is 2-15kg
B. Thickness dimension is 45-95mm
C. Size-to-size ratio not greater than 6
D. The total number of arcs and concave angles is not more than 2
E. The total number of ditches and houses is not more than 4
F. An acute angle >50° and ≤75°.
G. Without holes and holes.
Clay brick is a common kind of refractory brick, and its Al2O3 content is about 30%-48%. Clay bricks are made of refractory clay or kaolin and clay clinker combined with bonded clay, shaped by semi-dry method or plastic method, and fired at a temperature of 1250-1420 ℃. The refractoriness of clay bricks is generally 1580℃-1750℃, and the softening temperature under load is 1250℃-1450℃. Common clay bricks include national standard clay bricks and clay bricks for hot blast stoves.
Characteristics of clay bricks
1. Wide range of application.
2. Good thermal shock stability.
3. Good volume stability at high temperature.
4. Strong resistance to acid slag.
Uses of clay bricks:
clay bricks are used to build heating furnaces and heat treatment furnaces, flues, open hearth regenerator checker bricks and the bottom of regenerator walls, linings of air pipes and gas pipes, dust collectors of iron-making furnaces and smoke It is also a commonly used refractory material in furnaces such as boilers, lime kilns, glass kilns and ceramic kilns.
Clay brick performance index
ordinary clay brick
Item
Specified value
PN-1
PN-2
PN-3
0.2Mpasoftening temperature under load,℃
1300
1250
1200
Heating Permanent Wire Changes,（1350℃×2h）%
-0.6
-0.7
—
Apparent porosity,% ≤
24
26
28
Normal temperature compressive strength,Mpa ≥
30
25
20
Clay bricks for hot blast stove
Item
DRN-42
DRN-40
DRN-36
Al2O3,% ≥
42
40
36
Fe2O3,%≤
2.0
2.5
2.5
Bulk density ,g/cm3 ≥
2.25
2.20
2.15
Apparent porosity,% ≤
23
24
24
Normal temperature compressive strength ,Mpa ≥
40
40
35
Reburn line rate of change,%
1400℃X2h
1350℃X2h
1300℃X2h
±0.2
Creep rate,（0.2Mpa）% ≤
1250℃X50h
1200℃X50h
1100℃X50h
0.8
use
hot blast stove
Note: Clay bricks have different performance indicators due to different uses.
Clay brick classification
1. According to the content of Al2O3, it is divided into first class > 40%, second class > 35%, third class > 30%; the corresponding refractoriness is 1730 ° C, 1670 ° C and 1610 ° C.
2. According to the use, it is divided into professional clay bricks (clay bricks for blast furnaces, clay bricks for glass kilns, clay bricks for hot blast stoves) and ordinary clay bricks.
3. According to the density, it is divided into ordinary clay bricks and dense clay bricks.
4. According to the shape, it is divided into standard clay bricks, special-shaped clay bricks, and special-shaped clay bricks.
5. According to the variety, it is divided into ordinary clay bricks, multi-clinker clay bricks and all-raw clay bricks. Its mineral phase composition is generally mullite, cristobalite, quartz and glass phases.
Clay brick production
Clay brick production process: ore raw materials - crushing - crushing - batching - mixing - forming - drying - sintering
Clay brick forming process: plastic method and semi-dry method.
Price:1.00
Product Website:http://www.huanya-refractory.com
Company Description
Foshan Huanya New Material Co., Ltd.
Address:GuangDongGuangDongFoShanNanHai3A09, 3AFloor, Ruiying Commercial Building, Dali Town, Nanhai District, Foshan City, Guangdong Province, China
Descption:Huanya New Materials Co., Ltd. is headquartered in Foshan City, Guangdong Province, and has branch factories in Henan Province and Shanxi Province. We have over 20 years professional experience of kiln materials, and R&D capability, production capability, sales capability of refractory materials, specializing in high-end refractory products and raw materials.
Registered Capital:1000000
EmployeeNum:50
Foshan Huanya New Material Co., Ltd.
Contact:Martin Zheng
Telphone:86-0757-85503335-
Fax:86-0757-85503335-
Email:Martin_wf_cheng@aliyun.com
Company Website:https://www.huanya-refractory.com
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