Insulating fire brick is a new type of building material synthesized with polymer materials. The main function is to keep warm, reduce heat loss and improve thermal efficiency.
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2000Insulating fire brick introduction:
Insulating fire brick is a new type of building material synthesized with polymer materials. The main function is to keep warm, reduce heat loss and improve thermal efficiency. It is a scientific and efficient energy-saving technology. The refractory is generally divided into two types, namely unshaped refractories and shaped refractories. Unshaped refractory materials are also called castables. Shaped refractory materials generally refer to refractory bricks. Their shapes have standard rules and can also be temporarily processed when building and cutting as needed. But there are still big differences between refractory bricks and insulation bricks:
Density: As a thermal insulation material, the general density of thermal insulation brick is about 0.8-1.0g/cm3, but the density requirement of refractory brick as a fireproof material will be higher, because the higher the density of refractory brick, the better the density and the stronger the strength. may be high. Most of the refractory bricks have a density of more than 2.0g/cm3.
Refractoriness: The performance of thermal insulation bricks is mainly in thermal insulation. Although they have a certain degree of fire resistance, they are not as good as refractory bricks in refractory performance. The fire resistance of thermal insulation bricks is generally below 1400 degrees. However, refractory bricks are different. As refractory materials, refractory bricks have their own refractoriness levels that cannot be compared with thermal insulation bricks.
Insulating fire brick characteristics:
1. Low thermal conductivity, with good thermal insulation effect;
2. Low thermal melting, due to low thermal conductivity, mullite series lightweight thermal insulation bricks accumulate little heat energy, and the energy saving effect is obvious in intermittent operation;
3. Low impurity content has a very low content of oxides such as alkali metals in iron boxes, therefore, high refractoriness; high aluminum content enables it to maintain good performance in a reducing atmosphere;
4. High thermal compressive strength;
5. The appearance size is accurate, the speed of masonry is accelerated, the use of refractory mud is reduced, and the strength and stability of the masonry are ensured, thereby prolonging the life of the lining;
6. Can be processed into special shapes. To reduce the number of bricks and joints.
Insulating fire brick application:
Can be used as hot face refractory lining or backing insulation layer of other refractory materials, used in melting furnaces, firing kilns, flues, refining devices, heating devices, regeneration devices, gas generators and pipes, soaking furnaces, annealing furnaces , reaction chambers and other similar industrial thermal equipment.
Insulating fire brick indicators:
|
Item |
Performance |
||||
|
YYJM-23 |
YYJM-24 |
YYJM-26 |
YYJM-28 |
YYJM-30 |
|
|
Classification temperature（℃） |
1260 |
1350 |
1430 |
1540 |
1650 |
|
Bulk density g/cm3 |
0.6 |
0.8 |
0.8-1.0 |
0.9-1.1 |
1.0-1.2 |
|
Compressive strength Mpa |
1.3 |
2.0 |
3.0 |
3.5 |
3.5 |
|
Reburn line changes% （℃xh） |
1250×12 -0.5 |
1320×12 -0.5 |
1400×12 -0.5 |
1510×12 -0.9 |
1600×12 -0.9 |
|
Thermal Conductivity W/m.k(350±25℃） |
0.22 |
0.26 |
0.26 |
0.32 |
0.41 |
|
AL2O3 |
50 |
55 |
60 |
65 |
70 |
|
Fe2O3 |
1.2 |
1.2 |
1.2 |
1.0 |
1.0 |
Insulating fire brick manufacturer equipment:
Insulating refractory bricks packaging:
Insulating fire brick manufacturer according to your requirements shipping :
1.20GP FCL :10-16TONS
2.40GP FCL: 20-26TONS
3.40HQ FCL:22 TONS or 26 TONS
The above quantity without pallet ,the goods will be sent within 7-15days after receiving your order.
Gongyi Yuying Refractory Co., Ltd FAQ:
We can provide samples for free and charge shipping.
1. What is your MOQ?
Our product MOQ is 10 kg.
2. What kind of software package will we use?
25 kg plastic bags can also be customized.
3. What is the delivery time?
1*20 GP container takeS about 3 to 5 days.
4. Can you give me a discount?
Yes, we can negotiate
5. Can you give me advice based on the information we describe?
Of course, our mission is to provide you with professional services.
6. What is the shipping method?
Shipping, air, express. International train
7. What is the type of your company?
We are a Manufacturing & Trading Combo.
It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
The heavy parts of the chrome-zirconium mullite composite bricks are made of high-purity sintered mullite, high-purity chromium oxide, high-purity zirconia, and Guangbai mud as the main raw materials, and the light part of the raw materials are made of 47 mullite, kyanite, Bleaching beads, coke gemstones and Guangxi white mud are the main raw materials
Brown corundum is made of natural bauxite as raw material, carbon (mainly coke) is used as reducing agent, and iron filings are added as sedimentation agent (clarifier) to form ferrosilicon deposited on the bottom of electric furnace.
High alumina brick is mainly used for lining of blast furnace, hot blast furnace, electric furnace roof, reverberatory furnace and rotary kiln. In addition, high alumina brick also widely used as open hearth regenerative lattice brick, pouring system with plug,such as nozzle brick.
Castables Refractory for cement kiln Castables for cement kilns are special refractory castables for cement kilns. In my country, the new dry-process cement technology is developing rapidly, and the design and brick shape of PC and SP kilns are also very complicated. In order to adapt to this situation, our factory has developed a series of new refractory castables to replace the traditional refractory materials. Practice has proved that it is more suitable to use castables in parts with complex structure and kiln body deformation. Castables are also suitable for coolers, preheaters, precalciners, kiln door covers, tertiary air ducts and other parts that require thermal insulation. Its varieties include alkali-resistant castables, high-alumina and corundum castables, heat-insulating castables, and steel fiber reinforced refractory castables. Gongyi Yuying Refractory Co., Ltd. operates: castables for cement kilns, prefabricated blocks, low cement castables, refractory mud, refractory ramming materials, corundum castables, refractory castables, steel fiber castables, steel jade castables, Refractory plastics, high alumina castables, wear-resistant castables, plastics, castables, clay castables, refractory castables manufacturers, the company has 160 employees, including 12 senior professional and technical personnel, with an annual production capacity of 60,000 tons , has light and heavy material production lines, various production, testing and testing equipment, including 10 sets of 400-ton to 1,000-ton series forming presses, two (148 meters long and 118 meters long) high temperature tunnel kiln . Castables are also suitable for use in some parts of coolers, preheaters, precalciners, kiln door covers and tertiary phoenixes. Suitable thermal insulation castables can be used in preheaters of cement kilns and other parts that require thermal insulation. The main castables used in cement kilns are: index Alkali resistant castable High alumina castable High Alumina Steel Fiber Castable High strength mullite castable Silicon carbide anti-skin castable GT-13NL G-16 GF-16 G-20G GC-13H Al2O3%≥ 35 65 65 65 55 SiO2+SiC%≥ - - - - 35 Bulk densityg/cm3≥ 2.10 2.5 2.5 2.60 2.5 Cold pressed strengthMpa≥ 110℃×24h 60 80 80 80 80 1100℃×3h 60 80 80 90 100 Flexural strengthMpa≥ 110℃×24h 6 8 9 8 8 1100℃×3h 6 8 9 9 10 Rate of change of line after burning 1100℃×3h ±0.5 ±0.3 ±0.3 ±0.3 ±0.3 1. Alkali resistant castable Experiments show that the alkali pouring material has excellent alkali resistance much better than ordinary clay or high alumina pouring material. Ordinary and low-cement alkali-resistant castables have been successfully used in double-layer structural linings for preheater roofs, cones, tertiary air ducts, etc., where shaped bricks are not suitable. The low-cement alkali-resistant pouring material can also be used in the rear kiln mouth, cooler and kiln door cover. 2. High alumina and corundum castables High alumina and corundum castables for cement kilns include low cement and ultra-low cement castables, high strength corundum castables, etc. Calcined bauxite and cut jade are used as aggregates in the castable. Low cement and ultra-low cement type high alumina castables can be used in front and rear kiln mouths, chain belts, kiln door covers and cooler side walls. 3. Insulation casting section The heat-insulating castables for cement kilns include ordinary heat-insulating castables, high-strength heat-insulating castables, and ordinary and low-cement alkali-resistant heat-insulating castables. Usually high alumina cement is used as a binder in the castable. Ordinary heat-insulating castables use expanded perlite, expanded vermiculite and waste light bricks as aggregates. High-strength heat-insulating castables use refractory clay ceramsite, fly ash ceramsite, shale ceramsite, etc. as aggregates. Alkali-resistant and heat-insulating castables use alkali-resistant lightweight aggregates. Ordinary heat-insulating castables and their prefabricated blocks can be used as heat-insulating villages in double-layer structural linings of coolers, preheaters, calciners, kiln door covers and tertiary air ducts; high-strength heat-insulating castables and their prefabricated Blocks are available as single-layer linings in the neck and disintegration zones of conventional kilns. Ordinary and low-cement alkali-resistant and heat-insulating castables can be used in preheaters in small and medium-sized kilns and other parts that require alkali-resistant heat insulation. 4. Steel fiber reinforced refractory castables Adding steel fiber can improve the dismantling strength of the castable, and greatly improve the thermal shock resistance, impact resistance and wear resistance of the castable. Our company has carried out a lot of systematic research on steel fiber reinforced refractory castables, and developed a series of steel fiber reinforced refractory castables.
Refractory wet mud used to block the iron outlet can be divided into two categories: water cannon mud and waterless gun mud. On large and medium -sized blast furnaces on high top pressure and high degree of smelting.
Silicon carbide used in industry is a synthetic material, commonly known as emery. Silicon carbide is one of the most commonly used non-oxide refractory raw materials in the field of refractories.
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