Raw Materials for Refractory:Calcined Bauxite with Round Kiln
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Specification of Calcined Bauxite
Item | Al2O3 (min) | Fe2O3 (max) | TiO2 (max) | SiO2 (max) | KO2+NaO2 (min) | CaO+MgO (min) | Bulk Density(g/cm3) |
70 | 70% | 2.5% |
|
|
|
| 2.9min |
75 | 75% | 3.0% | 4.0% | 8% | 0.3% | 0.6% | 2.7min |
80 | 80% | 3.0% | 4.0% | 8% | 0.3% | 0.6% | 2.8min |
85 | 85% | 2% | 4.0% | 8% | 0.3% | 0.6% | 3.0min |
86 | 86% | 2% | 4.0% | 8% | 0.3% | 0.6% | 3.2min |
87 | 87% | 2% | 4.0% | 7% | 0.3% | 0.6% | 3.2min |
88 | 88% | 1.8% | 4.0% | 7% | 0.25% | 0.6% | 3.25min |
90 | 90% | 1.8% | 4.0% | 7% | 0.25% | 0.6% | 3.25min |
In 1MT jumbo bag or as the buyer request.
We ship the cargo in 20' GP containers,each container loads 25MT/20bags.
Application of Calcined Bauxite
1.aluminium industry
2.precision casting
3 refractory materials
4.aluminum silicate refractory fiber for fiber blanket, refractory brick .
5. refractory cement
Bauxite is an aluminium ore and is the main source of aluminium.
Bauxite is used in cement, chemicals, face makeup, soda cans, dishwashers, siding for houses.
- Q: What are some of the new refractories and what are their characteristics?
- These refractory materials can be bought in Zhengzhou real gold refractory materials factory. If necessary, we can visit the factory in Xinmi first.
- Q: Refractory material, refractory brick
- Refractory materials of various varieties, different uses, it is necessary to scientifically classify refractory materials, so as to facilitate scientific research, rational selection and management. There are many classification methods for refractory materials, among which chemical properties classification method, chemical mineral classification method, production technology classification method, material form classification method and so on are included.
- Q: Who knows about the fire endurance of sintered shaly hollow bricks?
- Sintered shaly hollow bricks of Chu area have high intensity. The average compressive strength of them is up to 15.8, which matches with M7.5 cement mortar that has advantages of low water absorption, and good anti efflorescence performance. The fire endurance of sintered shaly hollow bricks should not exceed1050 degrees otherwise they will burn excessively. I, actually, think that the temperature should be controlled within 980 degrees. I hope my answer may help you.
- Q: What refractories are used in various parts of the blast furnace.
- Blast furnace from top to bottom has the throat, hearth staves, waist, bosh, hearth and furnace bottom. the specific structure is as follows: The throat is the first to be affected by the impact and abrasion, generally use high-density alumina bricks. the upper and central portion of temperature furnace is only 400 ~ 800 ℃, the area with high alumina bricks and silicate bricks. The lower part of furnace is subject to erosion and dust erosion alkali metal vapor due to high temperatures, it is required in such case to use high quality clay brick,high alumina brick,carborundum brick,corundum brick that is slag resistance and alkali?resistance, temperature resustant and wearproof. Furnace bosh temperature reached 1400 ~ 1600 ℃, serverly eroded by slag,vapor, flush. so we use carborundum brick and reaction-bonded silicon?carbide?brick. Bosh temperature reaching1600 ~ 1650 ℃, using alumina brick, corundum brick or silicon carbide brick. the temperature of Hearth near the upper portion of the outlet zone at 1700 ~ 2000 ℃, use of silicate bricks and corundum castable graphite filler, silicon carbide bricks. In 1450 Silly twitch bottom temperature sealing die of hunger slander bet phoenix astringent preserved Grade ~ 1500 ℃, use of graphite bricks and microporous carbon bricks, now use more corundum brick, corundum mullite brick and synthetic mullite brick. x26lt;P class x3d "share-btn"x26gt;
- Q: What's the classification of flameproof glass, the refractory time of fireproofing glass.
- Fireproofing glass partition has the advantages of thermal insulation,resistance slow fire spreading and smoke insulation. when the fire broke out, it can creat favorable conditions for the rescuing of personnel, property and buildings, reduce the loss to mininum level, it has gained people's favor and has huge market potential. it's widely used in computer rooms, and high precision laboratory, school,core parts of party and government organs. In the past two years, there are several major fire accidents happened in domestic, such as Shanghai jing 'an district high-rise residential, CCTV new address Beipei building, which have caused serious loss and damage. Fireproofing glass naturally become the focus, China has carried out a wide range of fire control safety inspection work, the fireproofing consciousness of people has been gradually improved. Fireproofing glass, fire-resistant glass partition, firewall, fire doors, and other products are highly emphasized. Industry analyst of Beijing Lisiduoge partition materials believes that fireproofing glass partition is a new kind of construction fire-proof material, and is mainly used for making firewall, fire doors, fire partition,etc. Europe divide fireproofing glass into composite thermal insulation type and one-side complete fireproof glass. Divided from fire resistance levels, fireproofing glass can be divided into 30 minutes, 45 minutes, 60 minutes and 90 minutes four levels. Domestic fire partition indicators in line with international standards has fully embodied the countrymen have paid more and more attention on fireproofing safety.
- Q: What's the refractory material in common use currently?
- According to its category, raw material of basic refractory: Mainly magnesite (magnesia), dolomite, lime, olivine, serpentine, high alumina material (sometimes neutral); main neutral raw material: chromite, graphite, silicon carbide (artificial).
- Q: what textures of furnace refractories are good?
- First, it depends on the kiln. If it is the cubic kiln, the top and the wall portion should use alumina hollow ball bricks. The bent seal and kiln car use heavy corundum bricks. If it is the consecutive kiln, the burning zone shall all use the alumina hollow ball bricks, and both the burning zone bent seal and the brick kiln car bent seal use the heavy corundum bricks. Ifit is the pit furnace, furnace walls and roof use the alumina hollow ball bricks, and the bottom of the furnace use heavy corundum bricks.
- Q: Is it necessary for the frame of glass fireproof door to be crammed with fire-proof material?
- Close the door , and check if the gap is normal, whether the hole and the door leaf are in the same plane, and whether the door leaf has tendency to fall down. Fire resistance steel door——means that use a cold rolled steel sheet as door frame, door plank and framework, and stuff a door leaf with incombustible material.
- Q: What needs to be paid attention to in the construction of high- temperature refractory mortar?
- In the construction of high-temperature refractory mortar, the following matters should be noted: 1. Take out the organic fire blocking material and knead it into tha shape of a ball. If the temperature is too low, the blocking material along with the package can be put into 40-70℃ warm water and heated before any other operation. 2. During the use of high-temperature daub masonry stove, the minimum mortar joint should be 0.5mm and general mortar joint should be 3-5mm, which can solve the processing and fine grinding of refractory brick on the brick grinder. Besides, it is conducive to the health of workers, and can reduce the masonry effort, ensure the quality and speed up the construction progress. 3. When making urgent repair on the stove, if the joint is much too large, 2-3mm refractory pieces can be appropriately added into the high- temperature refractory mortar, and stirred to fill the joint so as to shorten the repair time and ensure normal production. 4. High- temperature refractory mortar can be painted inside various furnace body, and it should be guaranteed that the surface of the furnace body has no dust or debris before painting. The holes should be cleaned up before plugging. Lay, embed, and fill the blocking material into the gap of holes evenly. For larger holes, flame screen can be used as the framework to increase strength.
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Raw Materials for Refractory:Calcined Bauxite with Round Kiln
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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