Fireclay Brick - Common Fire Clay Bricks

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Specifications

1.high density,high refractoriness
2.high thermal shock,competitive price
3.low porosity,heat resistance

Application: they are wildly used in various furnaces, especially suitable to the middle and low parts of regenerator in glass furnaces.

Specification:

Common fireclay products

Product Index	Common Fireclay Products
Product Index	DN-10	DN-12	DN-15	DN-18
AL2O3 % ≥	45	45	42	42
Fe2O3 % ≤	1.00	1.20	1.65	1.80
Bulk Density≥ g/cm3	2.40	2.35	2.30	2.25
A.P. % ≤	10	12	15	18
C.C.S (Mpa) ≥	70	65	60	48
Refractoriness ≥ °C	1750	1750	1750	1750
Reheating Linear Change%	1400°C×2h -0.1~+0.05	1400°C×2h -0.1~+0.05	1400°C×2h -0.2~0	1400°C×2h -0.4~0
0.2Mpa Refractoriness under loadT0.6 ≥ °C	1500	1470	1450	1400

Refractory brick is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, refractory brick is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.

Refractory brick has wide applications, mainly used in metallurgy, construction(cement and glass), petroleum, chemical industry, electric power and machine building.

Q: How much is the silica powder in refractory bricks.: It's not easy to construct, also need to consider the technical and economic indexes, DH3, 1 kg silica powder replaces 1 ~ 3 kg cement, which is the reason why silicon powder was not used and spreaded in concrete in past, choose some silica power fume. In general, with the smoke escaping by special capture device for collecting and processing To determine the mixing method of silica powder, when mixing silica powder, you should find out the optimal dosage in order to obtain the best results, as the study, the content is 5% ~ 30%, H, the mixing of super high strength concrete, use same amount of silicon powder to replace equal cement to main same fluidity, Microsilica or Silica Fume, it is mainly according to the design requirements, and does not reduce the amount of cement, sand and stone to adjust the optimal dosage of water reducer, when deciding the best mixing amount of silica fume, the concrete is too sticky, most use naphthalene water reducing agent.

Q: can the red brick be used as refractory brick?: Can not replace! The high temperature will make it burst. Coefficient of thermal expansion is not enough

Q: What is the material of refractory brick used in the high temperature zone of the kiln?: The ordinary generally use clay high alumious fireclay brick. GB/T 3994-2005 insulating refractory brick. What with good material is high-grade thermal insulation refractory brick. GB/T 3995-2006, high alumina thermal insulation refractory brick , model A13, is made of aluminium oxide, A13 50U, senior heat insulatio brick B5

Q: The furnace refractory bricks are burnt into ash, what material can resist higher temperature than the refractory brick: steel plate is ok

Q: What are the hazards of solid clay bricks?: The production of clay brick destroys 500 thousand mu per year

Q: Are sintered brick concrete bricks?: Sintered brick: brick made of clay, shale, coal gangue or fly ash, made by molding and roasting at high temperature. Bricks used for masonry, load-bearing and non load bearing walls are collectively called sintered bricks.According to the raw materials, they are divided into sintered clay brick, sintered fly ash brick, sintered coal brick and so on.A sintered brick with a solid or void ratio of less than 25% is called a sintered ordinary brick.The production and use of ordinary clay brick has been in China for more than 3000 years. Nowadays, ordinary clay bricks still dominate the wall materials used in construction projects. Although the ordinary clay brick has many disadvantages, due to its low cost, simple process, design and construction technology is mature and people's inertia and other reasons, the ordinary clay brick for quite a long period of time, especially in rural areas, is still one of the main wall materials.

Q: Which is better for tunnel kiln suspended ceiling, refractory brick or ceramic fiber module ?: If there is no strong hot erosion by airflow, then module is certainly better

Q: How to prevent the refractory bricks from burning to crack?: This may result from formula. Prevent the refractory bricks from being overweight. Firstly, sintering agent should not exceed the standard, when sintering, bricks must be well piled to piled bricks, and the bricks must be dry.

Q: What are the properties of clay bricks?: Clay brick is very important. It can make clay brick not only with high refractoriness, but also can be used in many high temperature thermal equipment. The brick brick has better resistance to hot and cold, and the water cooling can reach 10~25 times at 850 centigrade. Clay brick can resist weak acid slag corrosion, the resistance to alkaline slag is slightly worse, increasing the content of Al2O3, can improve the ability of alkali resistance slag.

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