Large Fireclay Clay Bricks

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Refractory brick
1. Low thermal conductivity
2. Long service life, easy operation
3.cheapness
4.the most widely used

Features:

1. Low thermal conductivity, good thermal insulation performance.

2. Long service life, easy operation, could be shaped freely

3. Product specification: standard form, normal standard, shaped and special shaped bricks.

4. 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.

Applications:

1. Carbon bake furnaces in the aluminum industry

2. Preheat zones and cyclones of rotary cement kilns

3. Insulation for glass tanks

4. Fireplace and pizza ovens

5. Coke ovens

6. Blast furnaces

7. Reheating furnaces

8. Suspended roofs

9. Lime kilns

10. Chimney

Technical data:

Item	SK-30	SK-32	SK-34	SK-36	SK-38
AL₂O₃ % (min)	30-35%	35-38%	38-42%	50-55%	60-65%
Fe₂O₃% (max)	3	3	2.8	2.5	2.3
Refractoriness	≥1670°C	≥1690°C	≥1710°C	≥1750°C	≥1770°C
Refractoriness under load, 0.2MPa, (°C)	≥1270	≥1350	≥1350	≥1430	≥1450
Apparent porosity (%)	20-24	20-24	19-23	18-22	18-22
Bulk density (g/cm³)	2.00-2.05	2.05-2.1	2.1-2.15	2.15-2.25	2.25-2.35
Cold crushing strength (MPa)	≥25	≥30	≥35	≥45	≥50
Thermal expansion at 1000°C (%)	≤0.6	≤0.55	≤0.55	≤0.4	≤0.4

Q: Is fireclay brick acidproof? Does clay brick anti corrosion when it's used to build chimney lining?: Refractory bricks anti acid and alkali after high-temperature calcination, and anti-corrosion won't be a problem

Q: Which is better for tunnel kiln suspended ceiling, refractory brick or ceramic fiber module ?: use ceramic fiber precast block

Q: the amount of per square refractory brick of Various specifications and thickness of the refractory brick wall: 9 grams-47. 7 grams- 47 calculate by your own according to the actual volume; cubic centimeter; 2.2 grams Clay brick 2: 1; 3, high alumina brick 3; cubic centimeter; standard density, cubic centimeter: 230mm * 114mm * 65mm, diatomite insulation brick 0, you can calculate the reference value

Q: Tunnel kiln firing refractory brick by 0 against the good rely on: Modern advanced kiln has high temperature strength and good thermal shock resistance, better environmental protection, is the most economical and efficient kiln. (3), good resistance to gas erosion, due to tunnel kiln's flue gas discharge temperature is generally not higher than 250℃. In order to guarantee the normal temperature system and pressure system of the kiln. Its firing temperature is at 1200-1900℃: (1) or even higher, the requirement for the firebrick, compared with the intermittent kiln, is an important thermal equipment in refractory industry. It is a kind of energy-saving kiln. Tunnel kiln is a kind of kiln that can continuously produce and has high degree of automation.

Q: what is application of high alumina refractory brick?: reverberatory?furnace 1, close to the neutral refractory, but because mullite crystallization has not formed the network organization, so the load softening temperature is not higher than silica?brick. the refractoriness of high alumina brick is higher than fireclay?brick and semi-silica brick, mainly used in blast furnace, nozzle brick,etc. it is up to 1790 C~ 1750, can resistance to acid slag and alkaline slag erosion. hot blast furnace, blast furnace, high alumina brick are widely used for producing open-hearth?furnace regenerative bricks, because it contains SiO2, low impurity content, which belongs to high-grade refractory materials, electric furnace. 2, plug head used in pouring system . In addition. 3, because high aluminum products contains more Al2O3, forming less fusible vitreous body, so the high load softening temperature is higher than clay brick. because rotary kiln lining, slag resistance of high alumina refractory brick contain more Al2O3, so the ability of anti alkaline slag is weaker than anti acid slag. so it has a wide range of application. high alumina refractory brick due to the following performances

Q: Do refractory bricks insulate heat?: The light brick inside the brick is heat insulation brick, according to the different bulk density, the effect is also different

Q: How to prevent high alumina refractory brick from producing crack when reproduce high alumina refractory brick?: 1-1, on the 1 in order to prevent the emergence of crack in the production of high alumina refractory brick. 2 is appropriate, the water absorption rate of the tube mill should be controlled below 6%, the excess air coefficient controlled between level 1 and 2. The water absorption rate of clinker of bauxite with high alumina controlled under 4%-5%, making the high aluminum refractory brick burning in a smoothly and steadily weak oxidation atmosphere, and should be adjusted by thermotechnic

Q: What is the life of an old fashioned refractory brick kiln transformed into a flat topped tunnel kiln? what material should be used to transform the old fashioned refractory bricks vault kiln to flat tunnel kiln, and how long is the service life?: use castable refractory

Q: What is the difference between the refractory bricks, hand-made bricks and the machine pressure bricks?: Hand-made brick mainly produces brick that is not easy to produce molding Machine pressure brick adopts 100 tons of press machine to mold the density of hand-made brick is not enough, it's light; machine pressure bricks can only produce bricks that produce molding at a time, hand-made bricks mainly adopts hydraulic vibration molding machine

Q: The service life of the refractory brick of the intermediate frequency electric furnace, how long is the replacement period.: There is no standard. As long as the induction coil can be fixed and furnace lining can be built, the service life will be different. Replace it if it's broken, and there is no problem to take it apart. Buy a backup. And the textures of refractory brick are not the same in different places.

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