Product Description
Refractory light weight heat retaining brick for reheating furnace
Refractory light weight heat retaining brick for reheating furnace is an ideal insulating refractory refractory material, with advantages of high strength, low thermal conductivity, good insulation property and low price. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.
Refractory light weight heat retaining brick for reheating furnace is also called heat retaining bricks. It contains more than 48% Ai2O3 and mainly consists of mullite and glass phase or corundum. It is usually made of high bauxite and a small amount of clay. After the raw materials are grounded, it is made into mud. Then it is cast and molded and fired at 1300~1500℃. Sometimes industrial alumimum is used to replace bauxite. Inorganic matter is added as ignition loss substance in order to increase the porosity of the refractory.
Feature of heat retaining bricks :
1. It has advantages with small bulk density, high cold crushing strength, and high refractoriness under load, small dimension tolerance and good thermal shock resistance.
2. It has the lowest and most stable thermal conductivity in various insulating refractory bricks.
3. It can reduce the total weight of furnace body and the thickness of furnace wall effectively, improve heat efficiency, lower energy consumption, improve work conditions and production efficiency, and considerable economic benefit can be obtained.
Production Process of heat retaining bricks:
heat retaining bricks:Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packaging and Shipment
Refractory light weight heat retaining brick for reheating furnace has such advantages as high porosity, good insulation effect, high mechanical intensity, low thermal refractory fiber board conductivity and long service life. It has high cold crushing strengh,size precision and holds the most stable and lowest thermal conductivity of all insulating refractory brick at present. Its maximum insulating castable service temperature is 1350℃. Thermal efficiency and working condition can be improved, energy consumption can be lowered, productivity and significant economic results can be achieved.
Refractory light weight heat retaining brick for reheating furnace is characterized by low bulk density. The total weight of the furnace body and walls thickness can be reduced effectively.
It has found a wide application in ceramics tunnel kiln, roller kiln, shuttle kiln, coking furnaces of iron and steel industry and other thermal equipment. It is mainly used in lining and insulating layer of areas without strong erosion by high temperature melts. When in direct contact with flame, the surface contact temperature can not be higher than 1350℃.
Technical Data
Refractory light weight heat retaining brick for reheating furnace
Physical and Chemical Indexes of heat retaining bricks
| Item | LG-1.2 | LG-1.0 | LG-0.9 | LG-0.8 | LG-0.7 | LG-0.6 | LG-0.5 | LG-0.4 |
Al2O3 % ≥ | 48 |
Fe2O3 % ≤ | 2.0 |
Bulk density g/cm3 ≤ | 1.2 | 1.0 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 |
Cold crushing strength Mpa ≥ | 4.5 | 4.0 | 3.5 | 3.0 | 2.5 | 2.0 | 1.5 | 0.8 |
Permanent linear change temp ≥,less than 2% | 1400 | 1400 | 1400 | 1400 | 1350 | 1350 | 1250 | 1250 |
Thermal conductivity W/m.k 350±25 | ≤0.55 | ≤0.50 | ≤0.45 | ≤0.35 | ≤0.35 | ≤0.30 | ≤0.25 | ≤0.20 |
The technical data pertains to machine pressed standard bricks in compliance with the testing standard. These data are typical approximate guide value. Not to be construed as a binding specification.
Size tolerance ±1.% or 1.5mm whichever is greater.
heat retaining bricks with properties of higher values available where applications require the same.
Shapes&Size
What is the Shapes &Sizes of our heat retaining bricks ?
| Straight |
Split |
Arch |
Wedge |
Tile |
Other Shape |
L×W×H(mm)
230×114×65
230×114×75 |
L×W×H (mm)
230×114×25
230×114×32
230×114×37
230×114×50 |
L×W×H/h(mm)
230×114×65/45
230×114×65/55
230×114×75/45
230×114×75/55
230×114×75/65 |
L×W×H/h (mm)
230×114×65/45
230×114×65/55
220×114×75/45
220×114×75/55
220×114×75/65 |
L×W×H (mm)
230×230×38
230×230×50
230×230×65
230×230×75
|
Key brick,
Skew brick,
Soap,
Checker,
Neck,
Taper, |
We also can make heat retaining bricks according to customers' drawing and requirements. |
Applications
Refractory light weight heat retaining brick for reheating furnace
Applications of heat retaining bricks
Refractory light weight heat retaining brick for reheating furnace is not only widely used in insulating layers of various of thermal processing equipments, such as hot blast furnace, coke oven, glass kiln, etc, but also apply to linings in parts of furnace without strong high-temperature molten material erosive.
Shipping
Refractory light weight heat retaining brick for reheating furnace
Shipping of heat retaining bricks
1. FEDEX/DHL/UPS/TNT for samples.
2. By Sea for batch goods.
3. Customers specifying freight forwarders or negotiable shipping methods.
4. Delivery Time:3 days for common shape samples;15 days for special.
5.shape samples.Within 30 days for batch goods.
Payment and Package
Refractory light weight heat retaining brick for reheating furnace
1. Payment: T/T, Western Union,LC; Usually 30% deposits,70% balance before delivery or negotiations to solve.
2. MOQ: Usually 1Tons,Customers can order certain PCS for special brick.
3. Quality Warranty: 1 years.
4. Package Informations:
(1)Wooden pallet size:930*930mm,Load weight of each pallet:0.5-1.0 Tons.
(2)20 Foot Container can be loaded 25Tons,40 Foot Container can be loaded 28Tons.
Company Information
Refractory light weight heat retaining brick for reheating furnace
Our Competitive Advantage:
1.Competitive Price. Make the products competitive in your market.
2.Abundant Experience. Prevent cracks and twist in Refractory light weight heat retaining brick for reheating furnace .
3.Different Moulds. Save mould fees for you.
4.Strict Quality Control. Meet clients’ quality requirement.
5.Large stocks. Guarantee prompt delivery.
6.Professional Packing. Avoid damage and secure the goods in transportation.
FAQ
Q1: How about your factory’s annual production capacity?
A1:HongTai annual production is about 310,00Tons.
Q2: How many production lines of your factory?
A2:HongTai has 6 production lines, including eight silicon bricks lines, and each one of mullite brick, high alumina brick, insulating brick and monolithics line.
Q3:How large the scale of your factory?
A3: HongTai covers almost 200,000 Square meters, including plant area of 180,000 square meters.
Q4: What’s your factory’s product scope?
A4:HongTai main products are: refractory for hot blast stove, refractory for coke oven, refractory for glass kiln, refractory for carbon calcining furnace.
If you want Refractory light weight heat retaining brick for reheating furnace , please
Contact: Cindy Email: cindy@firebricks-supplies.com
Cell&Whats App: 0086-18623801271 Skype: cindy.tan929 QQ: 316024208
