• High alumina brick lining brick for ball mill System 1
  • High alumina brick lining brick for ball mill System 2
High alumina brick lining brick for ball mill

High alumina brick lining brick for ball mill

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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 cant 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:

  1. 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.

  2. 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.

  3. 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.

 High alumina brick lining brick for ball mill


Q:How to test the aluminium bricks of high alumina refractory bricks?
Before making bricks, the raw materials are usually tested and tested to see if the aluminum content is up to standard
Q:How to distinguish the good or bad of the high aluminum brick?
The general high alumina bricks used in the steel, steelmaking, hot blast furnace, electric furnace, blast furnace, reverberatory furnace, rotary kiln lining of industrial furnace in China, mainly composed of a bauxite; sillimanite minerals (including kyanite, andalusite, sillimanite etc.); synthetic material, such as alumina synthesis of mullite, corundum, etc.. High aluminum brick has good quality, high refractoriness, long life and other characteristics, is the main use of refractory brick kiln products, commonly used units can not distinguish the quality and grade of high aluminum brick right in the procurement time, caused by the high prices to buy low grade products, thereby reducing the furnace life therefore, Zhengzhou's Sindh yuan refractory material factory in here is simple to introduce how to identify the quality when purchasing brick high alumina brick.Color: in the purchase of high alumina brick, first of all to see the color, high quality aluminum brick surface smooth, yellow color white, four sides smooth, no broken angle, no cracksWeight: the weight of a block of bricks to be called, according to the standard weight level, high aluminum brick weight of 4.5 kg. Two grade high alumina brick weighs 4.2 kg, three high aluminum brick weighs 3.9 kg, the same level, the same parameters can reach this standard can be regarded as high-quality high aluminum bricks, the opposite is not up to the weight that the quality is good, if there is a crack, four angle uneven, off angle phenomenon, then substandard products, some of the above points to help to the purchaser
Q:Difference between low creep high alumina brick and ordinary high alumina brick
Low creep and high alumina brick is based on the theory of "three stones". The combination of bauxite and clay as the main raw material, adding kyanite, andalusite and sillimanite, commonly known as the "three stone" control, physicochemical index and size composition, using alumina mullite corundum + + raw materials such as technical scheme. In the production process, first to detect and control indexes of raw materials, crushing, grinding, sieving process, according to the distribution ratio of ingredients, the size and moisture control of mud mixing after to meet the requirements of forming and molding machine, the use of qualified abrasives, blow molding control number, size and flash at the same time, the detection efficiency of semi-finished products and meet the requirements. Production process: high temperature calcination of high-grade alumina, adding small creep rate of high temperature materials, by high-pressure molding and high temperature firing. It has the characteristics of high strength, low creep rate and high use temperature. Widely used in high temperature furnace, hot air furnace hearth lining, brick and so on.
Q:The difference between ordinary and diatomite brick refractory brick
To say the difference, the material is the biggest difference. There are diatomite brick density, compressive strength of small brick kiln belongs to the outer thermal insulation, and heavy refractory brick kilns for multi village in direct contact with the flame, high temperature resistance, good compressive strength, but no insulation. Hope to help you.
Q:What is fireproof concrete?
Silicate fireproof heat-resistant concrete using temperature can reach 700 DEG ~800 DEG, the main mechanism of its heat is dehydrated calcium hydroxide silicate hydrates series of cement clinker under high temperature, the calcium oxide and slag and mixing activated silica material in the three and two aluminum oxide and the reaction of anhydrous calcium silicate and anhydrous aluminum acid calcium has strong heat resistance, the fire resistance of concrete is a certain. Such as the use of high alumina bauxite and broken bricks, magnesia brick and magnesia for fireproof heat-resistant concrete materials with the highest using temperature can reach 1100 DEG C.
Q:How much is one ton of high alumina refractory brick?
Three high aluminum refractory brick Zhengzhou Kuwait is generally around 800. 32 years of experience, good.
Q:What are the alloy wear resistance materials?
According to the composition of Beijing Naimo metal materials company will wear resistant metal materials is divided into the following five categories: one: high manganese steel series: high manganese steel (ZGMn13),
Q:What is the heat preservation material used in a laboratory furnace?
Thermal insulation cotton is a high-purity clay clinker, alumina powder, silica powder, chromium sand and other raw materials in the industrial furnace melting at high temperature, forming fluid. Then, compressed air is used to blow or use the wire throwing machine to turn the yarn into a fiber shape. After the cotton collector is collected, the cotton is formed into a heat preservation cotton.The high alumina brick is usually made of high alumina clinker with small amount of clay. After grinding, the high alumina brick is poured and shaped in the form of slurry by the way of gas generation or foam, and it is burnt at 1300~1500 DEG C. Sometimes industrial alumina can be used instead of some bauxite clinker. Used for lining and insulation of masonry kilns, as well as for areas where there is no strong, high temperature molten material erosion and erosion. When contacting the flame directly, the surface contact temperature shall not be higher than 1350 degrees centigrade.
Q:Introduction of high alumina brick
Made from alumina or other raw materials of high alumina content; formed and calcined. High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining.
Q:What are the high temperature refractory mortars made of?
Siliceous mud, mineral composition and chemical composition is similar with silica, excellent corrosion resistance, water glass slurry, drying shrinkage, but also can be used for bonding fiber products, sealing furnace wall.

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