heat insulating bricks fire clay brick for tunnel kiln fire resistant high refractoriness fireclay brick
Introduction of heat insulating bricks:
heat insulating bricks is made from flint clay clinker and binder,through high temperature sintering. Al2O3 content is 30%-48%, SiO2 content is 50%-65%, and a small number of alkali metals, alkaline earth metal oxides, etc. Mineral composition is usually mullite, quartz and glass phase. Its refractoriness is 1580-1750°C, refractoriness under load is 1250-1450 °C, line expansion coefficients is low, with good thermal shock resistance and strong ability to resist erosion acid slag.
Feature of heat insulating bricks:
1. High refractoriness, high-temperature endurable;
2. Good thermal shock resistance;
3.Good volume stability at high temperature;
4. Good corrosion resistance;
5. Good spalling resistance and wear resistance;
6. High mechanical strength;
7. High-temperature creep rate is low;
Application of heat insulating bricks:
| heat insulating bricks |
| Iron & steel making industry | Such as blast furnace,hot blast furnace(stove),pellet shaft furnace,hot metal ladle,steel ladle,tundish,eating furnace,soaking pit furnace,heat treatment furnace,refining furnace,reheating furnace,metal mixter furnace,cupola furnace etc thermal technology equipment |
| Non-ferrous Metal industry | Such as smelting furnace, reverberatory furnace etc |
| Building materials industry | Such as cement kiln,glass kiln,ceramic kiln,lime kilns,kiln car,tunnel kiln,rotary kiln |
| Energy&Incineration | Such as coke oven,general boiler,power generation boiler,circulating fluidized bed boiler,electric furnace,carbonroasting furnace,waste incinerators |
| Others | Petrochemical industry furnace,Pizza oven |
Picture of heat insulating bricks:
Technical Index of heat insulating bricks:
| Project | N-1 | N-2a | N-2b | N-3a | N-3b | N-4 | N-5 |
| Al2O3 % ≥ | 40 | 39 | 34 | 34 | 32 | 32 | 31 |
| Fe2O3 % ≥ | 2.1 | 2.1 | 2.3 | 2.3 | 2.5 | 2.5 | 2.5 |
| Refractoriness ℃ ≥ | 1750 | 1730 | 1730 | 1710 | 1710 | 1690 | 1670 |
| 0.2Mpa Refractoriy under load T0.6 ℃ ≥ | 1400 | 1350 | 1350 | 1320 | 1320 | 1330 | 1330 |
| Reheating
Linear
Change
% | 1400℃ | +0.1~-0.4 | | +0.2~ -0.5 | / | / | / | / |
| 1350℃ | / | / | / | | | +0.2~-0.5 | +0.2~ -0.5 |
| Apparent porosity% ≤ | 22 | 24 | 26 | 24 | 26 | 24 | 26 |
| Cold Crushing MPa ≥ | 30 | 25 | 20 | 20 | 15 | 20 | 15 |
| Bulk density g/cm3 ≥ | 2.15 | 2.10 | 2.10 | 2.05 | 2.05 | 2.05 | 2.00 |
FAQ
Q1: Can we visit your factory?
Of course, welcome at any time and we will be honored to have a customer and friend.
Q2: When can I get the price?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
Q3: How do you guarantee quality?
For each production processing, we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
Q4: Do you have any experiences of export?
Yes, and now we have gained a global sales network reaching Russia, Korea, Vietnam, Pakistan, Bulgaria, French, India, Congo, Angola, South Africa, and so on.
Q5: Do you provide free samples?
Yes, we can provide a free sample for testing, if we have sample in stock. The quantity based on the material type. The buyer should bear all the shipping costs.
Packaging & Shipping
Packaging:
1. On wooden pallets with plastic cover: wooden pallet size :930*930 or 1000*1000mm
2. Load weight of each pallet: 1.5-2.0 tons
Shipping:
3. Our packaging is as per customer’s request
4. Normal goods delivered by sea transport
5. Sample shipping by express
6. We will ship and delivery goods timely, quality and quantity guaranteed, and also in accordance
with the contract and customer's requirement completely.
Jansincere Service:
1.Manufacturing high quality complete Refractory Material: Professional on manufacturing and providing shaped refractory and monolithics for aluminum, non-ferrous metallurgy, cement industries, environment and energy solutions.
2.Technical consultation: According to customers’ requirement of each equipment and different working conditions, we will formulate customized products to achieve optimization of economy and practicability.
3.Installation: Jansincere people has a strong ability to do pre-assemble works and install the kilns on the site.
4.Maintenance: Providing professional consulting & diagnosing services on problems may existed of the kilns. Regularly maintenance provided during the whole service range.
Product Tags:
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Tunnel Kiln Fire Resistant Insulating Refractory Brick High Temperature Endurable Images
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