JM23 pledges Mo Laishi brick is a kind of new-style energy-saving and fireproof material gently, can contact blaze directly, have high temperature resistant, stability of high fever shake, intensity is high, coefficient of thermal conductivity is small wait for character. Brick of the liner that is used extensively at furnace of kiln of path of roller of pottery and porcelain, shuttle type kiln, splitting decomposition, hot-blast stove to reach all sorts of electric stove, furnace door, kiln car brick. The advantage is purity tall, matter content is little, high temperature resistant, can contact blaze directly, be able to bear or endure all sorts of atmosphere are corroded, low heat conduction, low hot frit, high strenth, and have precision of good heatproof shake performance, dimension tall, but aleatoric cut. System presses an user closely to ask to be able to accomplish 0.5 0.6 0.8 0.9 1.0 1.2 1.5 between, action contacts blaze directly at furnace of high temperature kiln, heat preservation effect is good, compression intensity is high, coefficient of thermal conductivity is low characteristic. Apply to heat preservation of electric kiln furnace, all sorts of high temperature rotary kiln, channel kiln, nitrogen changes gas kiln furnace to wait. The crystallization of electric frit Mo Laishi is bigger than agglomeration Mo Laishi, heatproof shake sex is better than agglomeration goods. Their high temperature capability basically depends on the uniformity that the content of alumina and glass of Mo Laishi get along with distributing. The brick basically uses 1400 degrees of Molaishi at blind angle of system of splitting decomposition of kiln of agglomeration of regenerator of kiln of frit of shaft of hot-blast stove roof, blast furnace and hearth, glass, pottery and porcelain, oil lining.
JM23 pledges Mo Laishi brick is gently, it is the new technology that our country introduces, home is newest high temperature resistant energy-saving light qualitative fireproof material. Light qualitative Molaishi effect of bricky quality light heat preservation is good, it is makings of high grade high pure and fireproof pink, press product demand proportion, join organic and compound filler, via vacuum extrusion, high temperature burns the product of light qualitative Mo Laishi that combines, the pledges basis of Mo Laishi brick differs gently norms that my company produces, the content of alumina differs in 50%-80% .
Characteristic:
High temperature resistant can amount to 1790 ℃ above. Loading bate begins temperature 1600-1700 ℃ , 70-260MPa of intensity of normal temperature compression, heatproof shake sex is good, intensity is high, rate of high temperature creep is low, coefficient of expansion is small, hot coefficient is small, acid-proof sex is slaggy erode. The weight that can reduce high temperature body of heater greatly, transform structure, managing material, economic energy resources, promotion to manufacture efficiency.
The brick uses light qualitative Molaishi corundum of entrance board shape, high pure electric frit corundum is main raw material, application exceeds small pink advancedly to add a skill, course batch mixing, dry, shape, become in the fire inside kiln of type of high temperature shuttle. Mo Laishi pledges the brick uses 2 paragraphs extensively at ammonia of residuum aerification furnace, synthesis to change the equipment such as reaction furnace of furnace, carbon black and fireproof kiln furnace gently. The exterior dimension of goods, manage changes index, service life to all achieve the client's requirement.
The ground not comes gently character the chemical structure of stone brick, its are outstanding function is shown as follows:
1, low hot frit, because low heat conduction is led, mo Laishi series pledges gently the heat energy with adiabatic brick very few save up, energy-saving in intermittent operation effect is apparent;
2, rate of low heat conduction, have effect of very good adiabatic heat preservation;
3, matter content is low have the oxide content such as alkali metal of low-down iron box, accordingly, fireproof degree tall; The higher volume that contain aluminium makes its still maintain good performance below reducing atmosphere;
4, intensity of hot condition compression is high;
5, can process special form, seam in order to reduce number of brick of build by laying bricks or stones and build by laying bricks or stones;
6, exterior size is exact, accelerate build by laying bricks or stones to build career, reduce fireproof mud to use an amount, assured the intensity of body of build by laying bricks or stones and stability, prolong the life of liner thereby.
Use range:
Basically use at 1400 ℃ above car of hot-blast stove of tall wind lukewarm metallurgy, torpedo suffers molten iron to pound line of place, broken bits, structure of the makings path of kiln of frit of the roof of furnace of steel-making electric arc, glass, regenerator arch, upside, kiln of crucible of lining of blind angle of system of splitting decomposition of kiln of drawer of porcelain of kiln of kiln of agglomeration of pottery and porcelain, path of roller of pottery and porcelain, channel kiln, report, oil, glass and all sorts of electric stove liner, the Chi Bi of settling tank, liner of rotary kiln of cement, lime, can contact blaze directly.
Index / product standards | ρ=0.8 | ρ=1.0 | ρ=1.2 |
Classify temperature (℃ ) | 1400 | 1550 | 1600 |
Al2O3(% ) ≥ | 50 ~ 70 | 65 ~ 70 | 79 |
Fe2O3(% ) ≤ | 0.5 | 0.5 | 0.5 |
Bulk density (G/cm3Bulk density (G/cm | 0.8 | 1.0 | 1.2 |
Normal temperature compressive strength (Mp) | 3 | 5 | 7 |
Coefficient of thermal conductivity (350 ℃ ) W/(mk) | 0.25 | 0.33 | 0.42 |
Loading bate temperature (℃ ) (0.2 Mp, 0.6% ) | 1400 | 1500 | 1600 |
The heavy change that burn a line is led % (1400 ℃ ×3h) | ≤0.9 | ≤0.7 | ≤0.5 |
Use temperature for a long time (℃ ) | 1200 ~ 1500 | 1200 ~ 1550 | 1500-1700 |