High Alumina Brick - Ball Mill Lining Brick
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
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Quick Details
| Place of Origin: | Shandong, China (Mainland) | Type: | Ceramic Plates | Application: | Industrial Ceramic |
| Material: | Alumina Ceramic | Model Number: | OK93 | Brand Name: | CNBM |
| Specific Gravity g/cm3: | 3.63~3.68 | (Mohs Scale)Hardness: | 9 | Compression Strength MPa: | ≥2000 |
| Color: | White | Equivalent Wear Loss: | ≤0.08‰ | alumina content: | 93% |
| Samples: | Free available | Usage: | Ball mill |
Packaging & Delivery
| Packaging Details: | box |
| Delivery Detail: | Within 7 Days |
Technical Data
Name Items | OK70 | OK80 | OK90 | OK93 | OK95 |
Specific Gravity g/cm3 | 2.95~3.02 | 3.33~3.36 | 3.55~3.60 | 3.63~3.68 | 3.70~3.75 |
(Mohs Scale)Hardness | 8.5 | 8.5 | 9 | 9 | 9 |
Compression Strength MPa | ≥1700 | ≥1800 | ≥1850 | ≥2000 | ≥2250 |
Color | yellowish | White | White | White | White
|
Equivalent Wear Loss | ≤0.18‰ | ≤0.14‰ | ≤0.10‰ | ≤0.08‰ | ≤0.05‰ |
Guidence for Using
Calculation of alumina liner installed in ball mill
1. The number of alumina liners installed on two end walls:
(1) Calculation of the number of straight liners on the end wall:
Gf=3.14×r2÷(L1×W)
In the above formula: Gf: the number of straight bricks on the end wall of ball mill
r: the semi-diameter of the end wall of ball mill
W: the width of lining bricks
L1: the length of lining bricks
(2) Calculation of number of semi-straight bricks on the end face:
GB=D÷W
In the above formula:
GB: the number of straight bricks on the end face.
D:the diameter of the end wall
W: the width of alumina liner
2. The calculation of number of liner on the round wall.
The total No. of liners:
GC=R1×R2 , R1=3.14×D÷W , R2=(L-2h)÷L1,
in the formula:
GC: The total number of straight bricks and trapezoidal bricks on the round wall.
R1: the rows of bricks on the round wall.
R2: number of bricks in each row
D: the diameter of the end face
h: the thickness of liner
L: the length of Ball mill
W: the width of alumina liner
L1: the length of liner
Remark: GC: calculation of the total number of straight bricks and trapezoidal bricks according to tonnage of Ball mill according to the following table. Respectively calculate the No. of straight liner GC1 and trapezoidal liner GC2according to the proportion in the table.
Mill Tunnage | <0.3t< span=""> | 0.5T | 1--1.5T | 2.5--3T | 5--25T | 30--40 T |
Stri. Brick:Tra.Brick | 0:1 | 1:10 | 1:1 | 2:1 | 3:1 | 5:1 |
3. The total No. alumina liner:
Straight Liner=2Gf+ GC1 Trapezoidal Liner = GC2
Semi-Straight Brick=2GB+ GB1 semi-trapezoidal Brick= GB2
Flake Brick= R2
1. The material of installation:
The installation for lining Ball mill adopts 425# silicate white cement and a little 107# glue asadhesive.
2. The installation:
Before installation, we should clean surface of Ball mill.
(1)Installation should begin from the side walls installed with straight bricks totally and then adopt a certain number of semi- straight bricks to install matched. The gap between lining bricks should be less than 1.5mm. The installation of side walls should use straight bricks and semi-straight bricks only.
(2)After installing two side walls, then install round walls, which should adopt straight bricks and trapezoidal bricks. Make sure the bottom of lining bricks to contact tightly to the round walls, meanwhile use semi-straight brick and semi-trapezoidal liner to match (see the photo mentioned).
Specific installation steps are as following: Please install straight bricks first, then install trapezoidal bricks, at the last line, if the straight bricks can’t be inserted, then install fake bricks, whose gap is sealed tightly by white cement. Please let the workers install flexibly according to specific size of ball mill.
3. Maintenance:
After installation finished, we should maintain according to the following steps:
Dry the ball mill naturally for two days and put pour full water into the ball mill for 3 days, then take the water out and naturally dry 7 days at least.
After drying 7 days, pour water(occupying 70% of volume of mill)into ball mill, then charge alumina ball(occupying 60% of ball mill) and move ball mill for grinding 3 hours. Then move the ball mill the second time for grinding 1.5 hour. After 3 to 4 days, the ball mill could be normally operated.
In winter, new installed ball mill should be heated for two days. On the first day, heat the ball mill by electronic stove for 24 hours, then move the mill and heat the other side for 24 hours. After that, maintain the ball mill as the steps of above mentioned.
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- Q: What is fireproof concrete?
- According to the different properties of fire resisting and heat resisting concrete, they can be divided into silicate, aluminate, phosphate, sulfate, chloride, sol and organic substance, fireproof and heat-resisting concrete, etc.. The following are mainly used silicate, aluminate, phosphate, sulfate fire, heat-resistant concrete.
- Q: What are the high aluminum bricks made of?
- It's OK to use corundum bricks and alumina hollow ball bricks to build a furnace,
- Q: What are the grades of high alumina bricks?
- High alumina brick according to the aluminum content is generally divided into: super high alumina brick, a high aluminum brick, two high alumina brick, three high alumina brick
- Q: Application characteristics of high alumina brick
- Refractoriness. High alumina brick products are advanced varieties of aluminium silicate refractory products, and their refractoriness increases with the increase of Al2O3 content, generally not less than 1750 - 1790 DEG C. If the content of Al2O3 is more than 95% of corundum brick, the refractoriness can be as high as 1900-2000 degrees.
- Q: What's the difference between high alumina refractory bricks and high alumina refractory bricks?
- High alumina refractory brick in all thermal shock properties except performance are better than clay refractory brick, masonry in furnace and thermal equipment, such as clay bricks can be competent the work environment is not high aluminum brick masonry.
- Q: What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?
- The brick Pei boring and time. 6, Pei brick kiln installed between the brick and the brick Pei order, Pei and kiln top, kiln wall gap etc.. 7, high alumina brick kiln plan, and the lack of edges and corners of the scene should be avoided.
- Q: How many cubic bricks does a high alumina brick have?
- It is related to the content of aluminum in high alumina bricks.
- Q: How are the high alumina bricks fired?
- Light and high alumina bricks are usually fired in a weak oxidizing atmosphere. In light and high alumina bricks firing, they are often rich in impurities such as R2O, RO, Fe2O3 and so on. They react with Al2O3 and SiO2 at high temperature to produce liquid phase. In the Al2O3 - SiO2 - R2O system, the growth rate of liquid phase increases with the increase of temperature at high temperature. So, because the increase of sintering temperature brings a lot of liquid phase, the decrease of liquid viscosity will lead to the deformation of brick and the decline of brick high temperature function. Therefore, the lower sintering temperature and longer holding time should be adopted in the sintering process dominated by liquid phase sintering. The production practice shows that the same firing temperature can be used for the high grade aluminum bricks. When fired in an inverted flame kiln, it is usually 1430 degrees centigrade and insulated by 40H. The high alumina bricks such as Ill are 1390~1420 degrees centigrade. When the tunnel kiln is fired, they are 1550 and 1450~1500 degrees centigrade respectively. High alumina brick is usually made of weak oxidizing atmosphere.
- Q: The cloth blowing is not uniform on the lime kiln refractory brick is damaged it
- Lining 1 yuan to prevent direct damage to the Sindh kiln high temperature flame or air, to protect the kiln carcass; 2, to prevent harmful substances (CO, SO2) erosion of the kiln body; 3, to prevent corrosion, material flow on the kiln body; 4, reduce the kiln temperature, kiln body to prevent oxidation 5, has the function of corrosion; thermal insulation; 6, to improve the coating performance.
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High Alumina Brick - Ball Mill Lining Brick
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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