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Alumina refractory checker brick

 
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Description

Aluminum bricks masonry in blast furnaces of furnace body, furnace body is in the first half of the blast furnace, its diameter from top to bottom gradually expand, to adapt to the heating expansion in the charge and the friction reducing furnace wall of furnace charge, furnace body accounted for 50% 60% of effective height of blast furnace.In this environment, shaft lining need to meet such requirements, and the characteristics of high alumina brick is high refractoriness, high refractoriness under load, acid resistance, alkali resistance, slag corrosion resistance is strong, good abrasion resistance and other characteristics to meet, so the blast furnace body with high alumina brick lining as very suitable.

Above is the introduction of high-alumina bricks used in blast furnace. The lining environment of blast furnace is complex, and there are many kinds of refractory materials used.Revell production of high alumina brick can satisfy the user a variety of kiln using, for customers to provide revell is not only the refractory material, more is to provide users with reasonable solutions, optimization of the kiln lining.

 

Product introduction

1. Product definition:

High alumina firebrick is a kind of alumina silicate refractory whose content of alumina is not less than 55%.By alumina content of bauxite or other alumina

High raw materials are formed by moulding and calcining.

 2. Product features:

Thermal stability, high refractoriness in above 1790 ℃, high refractoriness under load can reach above 1480 °, good slag resistance, good thermal shock stability,

Acid and alkali resistance, high temperature creep rate low, high temperature strength characteristics, belong to the high refractory.

 3. Product classification:

High-alumina bricks are generally divided into four grades according to different content of alumina

 

 

 4. Product use:

The first-grade high-alumina firebrick is mainly used for electric furnace cover (top), blast furnace (body), hot air furnace partition wall, steel ladle lining and steel barrel.

The inner lining of various thermal kilns, such as iron water truck, cement kiln, glass kiln, etc.Widely used in ironmaking, steelmaking, chemical industry, cement and other industries.

Specifications

Physical and chemical index

Items

Technical Data

International code name

SK35

SK36

SK37

SK38

SK40

Chinese code name

LZ-48

LZ-55

LZ-65

LZ-75

LZ-80

Al2O3 min %

48

55

65

75

80

Fe2O3 max %

2

2

2

2

2

Refractoriness oC min.

1750

1770

1790

1790

1790

Refractoriness under Load C min.

1420

1470

1500

1520

1530

Permanent Linear Change % 

1450 C×2h

1500 C×2h

1500 C×2h

1500 C×2h

1500 C×2h

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

Apparent Porosity max. %

22

22

23

23

21

Cold Crushing Strength mim.

39

44

49

54

65

Note :
    Size Tolerance : + / - 1.5 % or + / - 2 Mm Which Ever is Greater
    Above Specified Values Relate to Machine Pressed Standard Bricks.
    P L C Values are for Specimens Heated At Given Temp. for 2 Hours


Production Equipment

Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.

Testing Testing Testing Testing
Packing Details
Packing details:

★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.

★Wooden pallet size: usually 92*92cm (standard brick)

★Castable: Ton bag with rain film and 25kg bags inside

★Or according to customer’s requirements

PackingPackingPackingPacking
Transportation

★Port of dispatch: Tianjin port; Qingdao port

★Delivery time: According to customer’s demand or two sides negotiate

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Our Services

We provide you 

★Timely response: Timely response to your inquiry within 24 hours and provide solution. 

★Competitive Price: Make the products competitive in your market. 

★Free sample: Free sample are offered, trial order are accepted for quality evaluation. 

★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.

★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment. 

★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.

We are here for you!

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Certification:  (ISO 9001:2015)

JUNDAO (HENAN) NEW MATERIALS CO.,LTD.

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