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: What kind of coal should be used to burn refractory brick? and how many calories smoke is suitable?: Coal briquette's effect is also good

Q: How to repair the boiler?: What kind of boiler, the external wall or the furnace arch, the smoke wall, the material: High-alumina cement, refractory brick, refractory clay, knife brick

Q: Mainly use the raw materials inside refractory bricks,: Go to the refractory factory to buy some refractory mortar that has the same texture of refractory bricks, the general boiler use clay refractory mortar.

Q: What refractory mortar is better if masonrying 4 meters height and 114 mm width of refractory brick: Use high aluminum refractory cement!

Q: When the coal-fired steam boiler is built, it is necessary to build a common red brick between the refractory bricks. May I ask what is the requirement for this common red brick?: The same the better, it will be easy to build

Q: How to count the number of loading refractory bricks?: Use one meter by one meter wooden raft-towing: use one meter raft-towing to count: Known your brick is T-3 standard bricks, each four layers lies down 15 and sidewards is 4 =64; according to 3.4kg, 47 clay bricks can hold 10 to 12 layers. According to the upper limit, each raft-towing can hold 2.3 tons

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: can castable refractory replace refractory bricks in rotary?kiln?: depend on where you use, rotary kiln is not a good place to use it. it can repair the kiln.

Q: Do slag bricks have clay bricks strong enough?: Red bricks are the most durable in construction, and the cost of red brick is also relatively high in cost.