Henan Hongtai Kiln Refractory Co.,Ltd.
PROFESSIONAL MANUFACTURE REFRACTORIES FOR FURNACE ！
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Silica brick for coke kiln is made of silicon raw material with 93% silicon oxide, usually used in coke oven, hot blast furnace, glass melting furnace. It has high refractoriness under load, good at acid slag erosion resistance.
Main characters of silica brick for coke kiln
(1)High refractoriness under load.
(2)High heat conductivity.
(3)Good thermal shock resistance.
(4)Solidity stable of capacity in high temperature.
Feature of silica brick for coke kiln
1.Strong acid slag resistance,
2.High refractoriness under load,
3.Volume shrinkage not change when reheated.
4.Used for glass furnace.
Technical date of silica brick
Please feel free to let us know your refractories needs, we will offer you the most suitable solution for you.
| Silica brick for glass furnace | |||||
| Item: | BG-96A | BG-96B | BG-95A | BG-95B | |
| SiO 2 | ≥96 | ≥96 | ≥95 | ≥95 | |
| Fe 2 O 3 | ≤0.8 | ≤1.0 | ≤1.2 | ≤1.2 | |
| Apparent porosity % | ≤22(24) | ||||
| Cold Crushing Strength MPa | Brick below20KG | ≥35(30) | |||
| Brick ≥20KG | ≥30(25) | ||||
| Refractoriness under load ºC | ≥1680 | ≥1670 | ≥1660 | ≥1650 | |
| True density g/cm ³ | ≤2.34 | ≤2.34 | ≤2.35 | ≤2.35 | |
| Silica brick for coke oven | ||
| Item: | CO-94A | CO-94B |
| SiO2: % | ≥94 | ≥94 |
| Al 2 O 3 : % | ≤ 1.5 | ≤ 1.5 |
| Fe2O3: % | ≤ 1.5 | ≤ 1.5 |
| Refractoriness under load 0.2Mpa | ≥ 1650ºC | ≥ 1650ºC |
| Apparent porosity: % | ≤ 22 | ≤ 24 |
| Bulk density: g/cm ³ | ≤ 2.34 | ≤ 2.35 |
| Cold crushing strength: MPa | ≥30 | ≥25 |
| Permanent linear change % (1450ºC ×2h) | 0~0.2 | 0~0.2 |
| Thermal expansion(1000ºC) | ≤1.28 | ≤1.30 |
| Silica brick for hot blast furnace | |
| Item | RG-95 |
| SiO2 | ≥ 95 |
| Al2O3 | ≤ 1.0 |
| Fe2O3 | ≤1.3 |
| Apparent porosity % | ≤22(24) |
| Cold crushing strength MPa | ≥45(35) |
| Remaining quarts % | ≤1.0 |
| Refractoriness under load ºC | ≥1650 |
| Creep(0.2Mpa ×1550ºC×50h) % | ≤0.8 |
| Thermal expansion coefficient (1000ºC) % | ≤1.25 |
| Apparent density g/cm ³ | ≤2.32 |
Application of silica brick
1.Glass melting furnace, ceramic frit kiln, sodium silicate furnace, soaking furnace, ceramic kiln, etc
2.Coke oven's coking chamber, combustion chamber walls, steel open-hearth's regenerator and sediment chamber, etc.
3.Load-bearing parts of high temperature hot blast stove and acid open-hearth furnace roof, etc.
Size of silica brick for coke kiln
| Straight Type | Arch Type | Wedge Type |
| L×W×H (mm) 230×114×65 230×114×75 230×114×32 220×110×60 220×110×50 220×110×40 | L×W×H/h (mm) 230×114×65/55 230×114×65/45 230×114×65/59 220×110×65/50 220×110×75/65 220×110×60/40 | L×W×H/h (mm) 230×114×65/55 230×114×65/45 220×110×75/65 220×110×60/40 |
| Other Sizes Can Be Customized | ||
Production process of silica brick for coke kiln
1)Raw material to factory→checkout→burdening→stirring→mixing→taking out the raw material,
2)Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packaging and Shipment.
2.Quality Assurance
1)Going out the furnace→checkout→packing→qualified product→putting in storage→sale,
2)The process from raw to product are strictly tested by equipment.
1.Inspection and Control of incoming raw materials: according to the chemical content,raw materials are classified into different levels to ensure quality of brick first.
2.Inspection and control of the process: during the production,every brick will be weighed twice strictly to reduce the error of weight .
3.Quality audit by quality management: inspection of product standardization of quality of each product by process control and experimentation, taking corrective measures timely whenever deviations are noted.
4.Before delivery, the inspectors will inspect the size,appearance, physical and chemical properties of silica brick again in factory.
