Mo Laishi gets together brick of light heat preservation regards insulation material as a medium high quality product, application is very wide, small today make up for everybody introduction Molaishi gets together the application of brick of light heat preservation in roller path kiln, interested friend understands together fall.
Brick of heat insolation of Mo Laishi heat preservation is with Molaishi (3Al2O3 · 2SiO2) the expensive aluminous simple fireproof stuff that gives priority to brilliant photograph. General alumina content is in 65% ～ 75% between. Mineral composition divides Molaishi outside, contain alumina among them inferior person still contain a few glass photographs and Fang Shiying; Contain alumina taller person still contain a few corundum. Brick of Mo Laishi heat preservation can be used at liner of furnace of high temperature kiln directly, use extensively already at the liner of shuttle type kiln, roller path kiln, glass and petro-chemical kiln furnace at present.
Mo Laishi gets together general alumina content is in brick of light heat preservation 65% ～ 75% between. Mineral composition divides Molaishi outside, contain alumina among them inferior person still contain a few glass photographs and Fang Shiying; Contain alumina taller person still contain a few corundum. Fireproof degree taller, can amount to 1790 ℃ above. Loading bate begins temperature 1700 ℃ of 1600 ～ . Intensity of normal temperature compression 70 ～ 260MPa. Heatproof shake sex is good.
Mo Laishi series pledges the brick has agglomeration gently Mo Laishi brick and electric frit Mo Laishi brick two kinds. Agglomeration not comes stone brick is main raw material with tall aluminous aluminous grog, join a few clay or unripe alumina to make bond, via shaping, firing and make. Electric frit not comes stone brick is raw material with alumina of tall alumina, industry and fireproof clay, join charcoal or coke granule to make reducer, law of reductive report frit is used to make after shaping. The crystallization of electric frit Mo Laishi is bigger than agglomeration Mo Laishi, heatproof shake sex is better than agglomeration goods.
The heat preservation effect of industrial kiln furnace is one of crucial factors that affect specific power consumption. Develop a kind of service life to grow and the product that can reduce quality of body of heater is to have very much those who want. JM28 belongs to Molaishi to combine material, have high temperature capability the characteristic with good, low cost, can use at kiln furnace liner, can reduce body of heater effectively not only quality, managing light, still can prolong lining service life, reduce uphold charge.
1, JM28 Mo Laishi gets together the Molaishi that Cheng Naicai of the flourish of brick of light heat preservation that make produces gets together brick of light heat preservation with industrial AL2O3 pink, clay, agglomeration good aluminous alumina and partial cyanite are given priority to should, add wood chip (1mm is chosen) beg with polystyrene (diametical 2~0.5mm) preparation pledges gently brick. In joining fine white of industrial AL2O3 pink, aluminous, cyanite, clay mixer first, work mix 3~5min, add polystyrene ball, wood chip and bond next (adscititious) , edge border agitate, after mixing even, go out grind. Use crowded mud law to shape. After 48h of ℃ of 50~60 of wet base course and 100~110 ℃ 72h are dry after shaping firing. Firing temperature control is in 1400~1500 ℃ , heat preservation 8h. The exterior that checks sample according to relative standard check and manage change target.
2, result and the JM28 Mo Laishi that analytic flourish Cheng Naicai produces get together exterior of finished product of brick of light heat preservation is white, edges and corners trenchant, size is exact. Its manage changes index to be: AL2O3=67.99% , fe2O3=0.87% , bulk density is 0.8g/cm3, compression intensity is 2.3MPa, change of the line after 1500 ℃ 8h is burned is - 0.1% , thermal conductance (800 ℃ ) for K-1 of · of 0.24W · M-1. Turn index result according to manage knowable: Content of AL2O3 of finished product of light qualitative brick is 67.99% , explain this matchs more than generating Molaishi: Fe2O3 content <1% , exterior of the adobe after be being burned so is white (if iron content on the high side, the adobe after burning is aglow) . Compression intensity satisfies a standard to ask (≥ 2.1MPa) , because industrial AL2O3 is in,be firing 13% bulk systole of the left and right sides arose in the process, those who be helpful for compression intensity rise. Clay and industrial AL2O3 are in firing the bulk that different level appeared in the process is contractive, and aluminous Molaishi changes generation bulk to expand, of cyanite decompose reaction to also produce bulk to expand, systematic bulk expands and systole offsets each other make change of product whole line not big, change of the line after 1500 ℃ 8h burns is only - 0.1% : Thermal conductance (800 ℃ ) for K-1 of · of 0.248W · M-1, because the experiment is medium,basically be arose after added wood chip and polystyrene spherule are firing even small 7 aperture, constituent structure is even, thermal conductance is low, achieved energy-saving result.
3, the applied JM28 Mo Laishi of the product gets together the liner of job of shuttle type kiln that brick of light heat preservation applies at ceramics works, 1400 ℃ control normal use temperature, high temperature resistant function of function, heat conduction function, accumulation of heat all compares cite data advantageous and service life is long, improved the quality of the product and productivity, improved working environment. Use JM28 Mo Laishi to get together the air consumption of every kiln after brick of light heat preservation is working line is controlled for 160Kg, mix a structure than former brick every kiln but managing light 40Kg left and right sides, energy-saving advantage is clear.
4, conclusion JM28 Mo Laishi gets together brick of light heat preservation has bulk stability intensity of good, compression tall, thermal conductance is small waited for an advantage to achieve managing light gas and the goal that reduce kiln style quality.
About not coming brick of light heat preservation introduces Shi Ju to hope to be helped somewhat to everybody to here, zhengzhou flourish Cheng Naicai regards professional fireproof material manufacturer as the home, the product is all ready, firebrick has: Quality of product of brick of argillaceous brick, tall aluminous firebrick, corundum, Mo Laishi brick is good, fireproof material price is substantial, welcome everybody the incoming telegram seeks advice and choose and buy.
Get Price
WhatsApp