• Silica Brick for Lime Kilns - Silica Alumina Fire Brick System 1
  • Silica Brick for Lime Kilns - Silica Alumina Fire Brick System 2
  • Silica Brick for Lime Kilns - Silica Alumina Fire Brick System 3
Silica Brick for Lime Kilns - Silica Alumina Fire Brick

Silica Brick for Lime Kilns - Silica Alumina Fire Brick

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
10000000 m.t./month

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Features

  • 1. Low bulk density, low thermal conductivity, good thermal insulation performance.

  • 2. Refractory category allow direct contact of fire, suitable ofr various atmosphere

  • 3. Good integrity with furnace lining, long service life, easy operation, could be shaped    freely

Typical Applications

  • 1. Furnaces of metallurgy industry, heat treatment furnace

  • 2. Furnaces of chemical industry and construction industry.

  • 3. Furnace of incineration of garbage, recirculating fluidized bed furnace etc.

Specification:

Refractory fireclay brick

 

Item Specifications

N-1

JN-40

JN-42

Al2O3  %

≥42

≥40

≥42

Fe2O3  %

≤2.3

≤2.7

≤2.5

Refractoriness ℃

1760

1760

1760

Apparent porosity  %

≤22

≤24

≤23

Bulk Density≥ g/cm3

2.25

2.20

2.25

Refractoriness under load 0.2MPa℃

1400

1380

1450

Cold crushing strength  MPa

35

28

35

Permanent linear chang %

1500℃×2h

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4


Silica Alumina Fire Brick for Lime Kilns

FAQ

Q1: How do you control the products quality?

A1: With strict quality control system throughout the materials selection and production process, our refractory and ceramic fiber products quality is effectively controlled to meet customer requirements.

From the raw materials selecting, our quality control begin. The quality certificates of raw materials are required and each batch will be tested before using. During production, the quality control are conducted by workers and then each piece will be sorted and examined by quality supervis

 

Q2: What`s the lead time for my order?

A2: It depends on customers’ requirements and our production schedule. And usually we need 30-60 days for refractory bricks,10-25 days for unshaped refractory materials and 10-20 days for ceramic fiber blankets.

 


Q: Semisilica brick interpretation
Good thermal shock resistance. In use, more high viscosity glass phase can be formed, and the masonry brick joint and the working surface are dense and the masonry is complete, which is beneficial to improve the impermeability of the masonry and reduce the erosion effect of the slag on the masonry.
Q: What is acid refractory?
Acid refractory material usually refers to refractories with SiO2 content greater than 93%. Its main characteristic is that it can resist acid slag corrosion at high temperature, but it is easy to react with alkaline slag.
Q: Semisilica brick, clay brick, high alumina brick and what is the difference?
This is a kind of refractory material is divided into three types: semisilica brick (A12O315 ~ 30%), clay brick (A12O330 ~ 48%), high aluminum brick (A12O3>48%).
Q: The brick is mainly used in the place?
Open hearth furnace regenerator and a sediment chamber, soaking furnace, glass furnace refractory materials and ceramic brick kiln, kiln vault and other load-bearing parts.
Q: How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?
Mainly depends on the color and density of brick. Another black clay brick and brick with iron oxide formation and how much the size of bricks
Q: The high thermal conductivity of silica brick and traditional brick what is the difference?
The scale quartz is a spear shaped double crystal structure, very compact and favorable to the increase of thermal conductivity. The high thermal conductivity of silica brick in improving thermal conductivity and other performance indicators and traditional coke silicabrick agreement.That is to say, the high thermal conductivity of silica brick all inherited the traditional advantages of coke oven silica brick, on the basis of further highlight the characteristics of high thermal conductivity
Q: Why is the three oxidation of two silicon is very harmful impurities in silica brick
Can generate the material needs is the best way to see the impurity problem!! the first consideration is whether can get the material impurities with what method choice after the time! Miscellaneous reactions cannot have new impurity formation! Selected cannot and need material reaction reagent!
Q: The chemical composition of silica brick and its physicochemical index?
????Al2O3 SiO2??????fe2o3??????cao???????r2o93~98?0.5~2.5?;;?0.3~2.5??0.2~2.7;??1~1.5;
Q: What is the silica refractory products?
High silicon content in high temperature expansion sintering temperature between 1390-1410 in furnace arch
Q: Physical solid waste disposal
Too much addition will reduce the refractory and mechanical strength, increase porosity, so the amount of waste brick should not be too much.

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