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      High Alumina Poly Lightweight Insulation Brick

      Apr 15, 2021

      The special blast furnace refractory material is the main raw refractory material, supplemented by appropriate admixture and produced by polylight burning method. Refractory product has the advantages of high strength, good thermal stability, small change of heavy burning fiber and small thermal conductivity. The high alumina poly light insulation brick has a content of AL2O3 of more than 48%, which is mainly composed of mullite and glass phase or corundum. The bulk density is 0.4 to 1.35 g/cm3. The porosity is 66% to 73%, the compressive strength is 1-8 MPa, the fire resistance temperature is 1600 degrees, and good thermal shock resistance.

       


      High Aluminum Poly Light Brick Product Features


      1. High temperature strength;
      2, Good thermal insulation performance;
      3, Resistant to various atmospheric corrosion;
      4. Features such as remarkable energy saving effect;
      5. Excellent thermal shock stability. 

       

      High Alumina Poly Light Insulation Brick Application


      High alumina poly light insulation brick is widely used in kiln lining (not eroded by solution) and insulation layer in metallurgy, machinery, ceramics and chemical industries. It is an ideal energym saving product.
      High alumina poly light insulation brick is used for the lining and insulation of masonry furnaces, as well as the areas where there is no strong high temperature molten material erosion and erosion. When in direct contact with the flame, the surface contact temperature shall not be higher than 1350℃
      High alumina poly light insulation brick used in ceramic tunnel kiln, roller kiln, shuttle kiln, wall kiln, also used in various heating furnace coking furnaces and other thermal equipment, heat treatment lining materials, etc.


      High Alumina Poly Light Insulation Brick Specification

       

      Item

      Specification

      LTL-0.6

      LTL-0.8

      LTL-1.0

      LTL-1.2

      Density Bulk(g/cm3)

      0.6

      0.8

      1

      1.2

      Cold Crushing Strength(Mpa)

      2

      3.98

      4.98

      5.98

      Reburning Linear Change%(℃*h)

      1350*12

      1400*12

      1400*12

      1450*12

      Thermal Conductivity(w/m.k 350+-25℃

      0.25

      0.29

      0.35

      0.45

      Al2o3

      50

      50

      55

      55

      Fe2o3

      1.8

      1.8

      1.8

      1.8


      High Alumina Poly Light Insulation Brick Requirement


      (1) The thermal stability under long-term high temperature working conditions is good
      (2) The wear resistance in the work should be good, and the strength under normal temperature and high temperature conditions should be high.
      (3) The density is high, the thermal conductivity is small, and the thermal insulation performance is good.
      (4) It can resist the severe erosion and erosion of molten iron, slag, blast furnace gas and furnace dust under high temperature and high pressure, and is resistant to various atmospheric corrosion.
      (5) The size of the refractory material should be accurate and in line with national standards, which is conducive to the construction of the blast furnace.

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