High Alumina Brick - Insulating Fire Brick for Foundry Furnace
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 2000 m.t./month
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Description of High Alumina Brick
High Alumina Brick Insulating Fire Brick for Foundry Furnace is widely used in metallurgy, petroleum, chemical industry, building materials, machinery processing, military, etc of thermal technology equipment. High Alumina Brick is widely used for MgO Reduction Furnace, Blast furnace, Hot Blast Stove, Tunnel kiln , Steel Ladle, Steel smelting furnace, Coke oven,chimney, Waste incinerators, Casting products, Boilers, Cement kilns, Carbon furnace, Glass kilns and a variety of furnace linings and thermal equipment.etc.
Specifications for High Alumina Brick
Item | Fireclay brick | High Alumina Brick | ||||
SK32 | SK34 | SK35 | SK36 | SK37 | SK38 | |
Al2O3 (%) ≥ | 35 | 42 | 48 | 55 | 65 | 75 |
Refractoriness (oC) ≥ | 1670 | 1730 | 1750 | 1770 | 1790 | 1790 |
Refractoriness under Load, oC,0.2MPa ≥ | 1250 | 1300 | 1420 | 1470 | 1500 | 1520 |
Linear Change(%),oC×2h | 1350 | 1350 | 1450 | 1500 | 1500 | 1500 |
-0.5~0 | -0.5~0 | -0.4~+0.1 | -0.4~+0.1 | -0.4~+0.1 | -0.4~+0.1 | |
Porosity (%)≤ | 24 | 22 | 20 | 20 | 19 | 19 |
Cold Crushing Strength, MPa≥ | 20 | 30 | 39.2 | 44.1 | 49 | 53.9
|
Features of High Alumina Brick
Low thermal conductivity, good thermal insulation performance.
Long service life, easy operation, could be shaped freely
Product specification: standard form, normal standard, shaped and special shaped bricks.
Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.
Typical Application of High Alumina Brick
Furnaces of metallurgy industry, heat treatment furnace.
Furnaces of chemical industry and construction industry.
Furnace of incineration of garbage, recirculating fluidized bed furnace .
- Q: What is the heat preservation material used in a laboratory furnace?
- Silicon carbide (SiC) is made from quartz sand, petroleum coke (or coal tar), sawdust (green salt produced when adding green silicon carbide) and other raw materials by smelting with resistance furnace at high temperature. Silicon carbide also rare minerals in nature, Mo sangshi. Silicon carbide, also known as carbon silica. Silicon carbide is the most widely used and the most economical kind of refractory materials in C, N, B and other non oxide refractory materials. It can be called "carborundum sand" or "refractory sand".
- Q: What is the difference between corundum and high alumina??
- The main components of high alumina brick are high alumina bauxite, mullite and partial corundum sand.
- Q: What are the grades of high alumina bricks?
- High alumina brick according to the aluminum content is generally divided into: super high alumina brick, a high aluminum brick, two high alumina brick, three high alumina brick
- Q: How much is one ton of high alumina refractory brick?
- Three high aluminum refractory brick Zhengzhou Kuwait is generally around 800. 32 years of experience, good.
- Q: The cloth blowing is not uniform on the lime kiln refractory brick is damaged it
- Lining 1 yuan to prevent direct damage to the Sindh kiln high temperature flame or air, to protect the kiln carcass; 2, to prevent harmful substances (CO, SO2) erosion of the kiln body; 3, to prevent corrosion, material flow on the kiln body; 4, reduce the kiln temperature, kiln body to prevent oxidation 5, has the function of corrosion; thermal insulation; 6, to improve the coating performance.
- Q: Corundum, high alumina and fireclay refractory difference is what
- Corundum is unknown. The high alumina brick has higher aluminum content than the clay brick, and the temperature resistance is higher than 300 degrees. It is more durable and durable than the clay brick. The production process of high alumina brick is better than that of clay brick. For example, the weight of good clay brick is 3.7kg, and that of high alumina is 4.2kg. Good density. But the price of high aluminum is too high: ordinary clay brick (standard brick example) in 1.1--2.5 yuan / block, high aluminum to 4.5 yuan / block, or even more expensive. The extra high aluminum has reached 5000 tons. Say straight white point is: under the same conditions, clay brick for a period of one year, then the high aluminum for more than three years.
- Q: Does the chimney have high acid resistance?
- The chimney particles and gases, mostly coal tar products, material acidic, therefore, take good acid resistance, acid proof brick, Grouts also used potassium silicate clay acid is preferred.
- Q: What is the difference between metal compounds and metal solid solutions?
- A series of intermetallic compounds occurring between transition metals in intermetallic compounds. The most important are L sigma sigma phase and ves phase, they are topologically close packed (TcP) phase, they consist of a small atomic radius of a dense layer, which is inlaid with a large atomic radius of atomic structure, this is a highly dense pile. In addition to atomic size factors, their formation is also influenced by the concentration of electrons.
- Q: How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?
- Because the hot air outlet of the top burning hot blast furnace is high, the installation requirement of the hot air manifold is high, and the requirement of the strength of the pillar structure is higher, so the rectangular arrangement of the hot blast stove is arranged. The top burning hot blast stove is located on the furnace top because of burner and hot air valve,Therefore, operation, maintenance and installation all require mechanization and automation. Also, because these water cooled valves are mounted with a high elevation,Therefore, the demand for cooling water supply pressure should be improved accordingly, the use of large top burning hot blast stove, the key lies in the design of high-power high-efficiency short flame burner. The top combustion hot blast furnace absorbs the advantages of internal combustion and external combustion hot blast stoves, and overcomes some of their shortcomings,Its structure can meet the requirements of modern blast furnace for high temperature, high pressure and large scale development,Combustion capacity, while meeting production requirements, has been successfully reduced by many devices,
- Q: What should be used as binder for making high alumina bricks?
- Bond for making high alumina brick: soft clay has good plasticity, so the high alumina brick is usually made of soft clay as bond. However, the free Al2O3 free SiO2 and bauxite clinker clay in under 1200 degrees occurred two times of Mullization reaction, generate large volume expansion, silicon porosity, strength reduction. Therefore, the amount of clay powder in the ingredient should be no more than 5%.
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High Alumina Brick - Insulating Fire Brick for Foundry Furnace
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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