High Temperature Mullite Checker Refractory Brick for Blast Stove
The Description:
Checker brick is widely recognized and accepted by the world of ironmaking, a heat-carrying heat storage body with strong heat exchange capacity, large heat storage area, smooth ventilation, low resistance and many other superior thermal characteristics. Lattice brick is a kind of heat transfer medium, which is mainly used in the middle and upper part of the regenerator of hot blast furnace and plays the role of heat storage. In the process of heating cold air into hot air, it plays an extremely important role.
The Physical and Chemcial Index of High Temperature Mullite Checker Refractory Brick for Blast Stove
| Items |
DL-80 |
DL-75 |
BDL-80 |
BRL-75 |
BRL-83 |
BRL-85 |
| Al2O3 % ≥ |
80 |
75 |
80 |
75 |
83 |
85 |
| Fe2O3 % ≤ |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
| Apparent porosity % ≤ |
19 |
19 |
18 |
18 |
17 |
17 |
| B.D g/cm3 ≥ |
2.7 |
2.6 |
2.8 |
2.7 |
2.9 |
2.9 |
| CCS Mpa |
70 |
60 |
60 |
55 |
70 |
80 |
| RUL ºC ≥ |
1540 |
1520 |
1550 |
1530 |
1550 |
1560 |
| % P.L.C 1550ºC×2h |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
Product feature:
1. Having a plurality of transparent cell holes parallel to the side surface, and positioning protrudes and positioning grooves located on two parallel surfaces.
2. Good volume stability, high temperature load creep performance, high density and low porosity. Modern blast furnace hot blast furnace usually adopts lattice brick regenerator structure.
Checker brick is mainly used in blast furnace hot blast furnace and flame furnace.
The checker bricks are mainly used in the regenerator of hot blast stove. The checker bricks with lattice holes are arranged in an orderly manner. The upper and lower holes of the lattice bricks can allow gas to pass through. According to the technical requirements of different temperature areas, siliceous lattice bricks, clay bricks, etc., are generally selected, and in some hot blast furnaces, high aluminum bricks, mullite bricks, sillimanite bricks, etc.
The role of the hot blast stove is to heat the cold air sent by the blower to the blast furnace into hot air, and then the hot air is sent to the blast furnace through the hot air tube for combustion reaction. The BF hot blast furnace has a furnace period and a air supply period, and the two working periods are rotated periodically. In the furnace period, the high temperature flue gas after combustion passes through the hole of the lattice brick of the hot blast furnace, and the heat is transferred to the lattice brick. In the air supply period, the cold air from the blower enters the hot blast furnace, is heated into hot air by the lattice brick, and is sent to the blast furnace through the hot air pipe.
Company main products and profiles:
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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