Hign Alumina Bricks high quality

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In aqueous alumina minerals (monohydrate diaspore, sanshui diaspore, etc.) as the main composition of high bauxite;

The family of sillimanite minerals (including kyanite, andalusite, sillimanite, etc.);Synthetic raw materials, such as industrial alumina, synthetic mullite, fused corundum and so on.China high alumina bauxite resources, quality is good, producing area are mainly distributed in shanxi, henan, hebei, guizhou,

shandong and other places.Produced by high aluminium vanadium and soil, mainly diaspore monohydrate (alpha Al2O3 · H2O) and kaolinite and the mixture of two kinds of minerals.\ n high bauxite with rotary kiln and vertical kiln calcination, sintering temperature of 1500 ~ 1700 ℃.

Sintered bauxite, bibulous rate is in commonly 4 to 7%。

3 oxidation 2 aluminium (Al2O3) content higher than 48% of the silicate aluminum refractory products.Such as Al2O3 content higher than 90%,

called corundum brick.Due to different resources, the national standard is not entirely consistent.Such as European countries for high aluminum

refractory Al2O3 content lower limit is 42%.In China, according to the high alumina bricks are usually divided into three classes: Al2O3 content in Ⅰ etc. ─ ─ the Al2O3 content > 75%.Such as Ⅱ ─ ─ Al2O3 content is 60 ~ 75%;Such as Ⅲ ─ ─ for 48 ~ 60% Al2O3 content.
The raw material According to the resource conditions and different requirements for products, can use the following categories of the material: with water alumina minerals (monohydrate diaspore, sanshui diaspore, etc.) as the main composition of high bauxite;The family of sillimanite minerals (including kyanite, andalusite, sillimanite, etc.);Synthetic raw materials, such as industrial alumina, synthetic mullite, fused corundum and so on.China high alumina bauxite resources, quality is good, producing area are mainly distributed in shanxi, henan, hebei, guizhou, shandong and other places.Produced by high aluminium vanadium and soil, mainly diaspore monohydrate (alpha Al2O3 · H2O) and kaolinite and the mixture of two kinds of minerals.
High bauxite with rotary kiln and vertical kiln calcination, sintering temperature of 1500 ~ 1700 ℃.Sintered bauxite, bibulous rate is in commonly 4 to 7%.

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Q:What are the high aluminum bricks made of?
The amount of refractory mud accounts for about 6% of the brick weight
Q:What should be used as binder for making high alumina bricks?
Bond for making high alumina brick: soft clay has good plasticity, so the high alumina brick is usually made of soft clay as bond. However, the free Al2O3 free SiO2 and bauxite clinker clay in under 1200 degrees occurred two times of Mullization reaction, generate large volume expansion, silicon porosity, strength reduction. Therefore, the amount of clay powder in the ingredient should be no more than 5%.
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.
Q:What causes breakage of refractory bricks?
There are many factors that lead to the damage of refractory brick, can be divided into: the chemical loss (e.g. salt penetration, redox phenomenon), heat loss (burning, thermal shock), mechanical loss (kiln deformation, thrust, brick masonry quality etc.).
Q:What are the specific raw materials for plastic pallets?
There are two kinds of raw materials for plastic pallets: one is polypropylene (PP) and the other is polyethylene (HDPE).Plastic pallets for logistics storage: pp+pe material, recycled material 10%;Plastic trays for food trays: food grade PP, PE, pc;Polyethylene (HDPE) has excellent impact resistance and cold resistance, and it can resist environmental stress cracking. Excellent chemical stability, good oil resistance. Water absorption and tiny, low permeability, organic vapor transmission rate is larger. Electrical insulation is good, in all frequency range, dielectric properties are extremely excellent.
Q:What is the difference between T3 refractory bricks or high alumina refractory bricks?
The T3 in T3 refractory bricks refers to the model indicating that the refractory brick model is T-3, and that the corresponding T-3 model is 230*114*65 (mm)
Q:What are the categories of bricks?
Clay brick materials, cheap, durable, and fire prevention, heat insulation, sound insulation, moisture absorption and other advantages, is widely used in civil engineering. Waste brick can also be used as aggregate of concrete. In order to improve the shortcomings of ordinary clay bricks, such as small, self important and waste of soil, they are developing in the direction of light weight, high strength, hollow and big blocks.
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:How are the high alumina bricks fired?
Generally, the high alumina bauxite is added with a small amount of clay. After being ground, the gas is injected and shaped in the form of slurry by the way of gas attack or foam, and it is burnt at 1300~1500 DEG C. Sometimes industrial alumina can be used to replace part of bauxite clinker. Used for lining and thermal insulation of masonry kilns, as well as for areas where there is no high temperature, high melting material erosion and erosion effects. When touching the flame directly, the touch temperature shall not be higher than 1350 degrees.
Q:What is the high temperature limit of refractory bricks and refractory soil?
Fire clay -- usually refers to folk point stove furnace set with a kind of soil, limit under atmospheric pressure of 1500 degrees fire clay soil 1, properties and uses: clay brick of weak acid refractory material, its thermal stability is good, suitable for hot blast furnace, boiler and flue, smoke chamber lining, etc..2, product specifications form: standard shape, general, special-shaped and special-shaped brick. Physical and chemical properties of fireclay bricks.

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