The develops heat-insulating material development of heat-insulating material is OK restrospect to 1870-1890 year, one kind can machine a brick model material is called diatomite, it is to be in laky the fossil of a kind of plant that with the course in ocean several chiliad deposit forms, have poor and poriferous organization. There is resource of thousands of kinds of diatomite on the world, difference is not big, contain the silicon of 75%~80% for the most part. Consider to discover, this kind of natural stoma is OK also can light material fact to watch through adding, this kind can light material to be able to make the product of a kind of low density and low thermal conductivity in combustion process. This kind is called the heat-insulating material of diatomite, still apply extensively in microtherm domain today. In 19 centuries end, people also uses other heat-insulating material or poriferous data, for example vermiculite, vermiculite has tallish rated temperature value, but the temperature that can not reach need. Fang Shiying can be achieved only classification ratedly temperature 950 ℃ , the rated temperature of vermiculite is 1050-1100 ℃ about. Use clay fault to produce the crockery of numerous and different figure and norms at that time, fang Shiying was added to regard combustion as material in producing a course. Because this was born,front row takes the place of firebrick of siliceous aluminous heat insolation, this also is the is 23 class brick that we weigh currently, operation temperature is 1200 ℃ about. After this is very fast be replaced by 2500 class or the bricky place of 1350 ℃ . These bricks pass extrusion of material of plasticity pottery and porcelain, this material is contained can light composition, for example sawdust or coal fines, sequel ever still had been used get together stupid ethylene. This kind of production methods needs raw material to have certain plasticity, accordingly this is not is the product that adds aluminium to obtain higher rated temperature. Because plasticizer has been born, be in about 1930~1985 year during the basic method that development went to produce a brick, make adiabatic brick has higher aluminous content, rated temperature can achieve 1750 ℃ .
The sort that adiabatic firebrick classifies adiabatic and refractory products is very much, pledge by density of use temperature, bulk, material with product figure cent is 4 kinds commonly. By use temperature cent can divide it is 3 kinds: Use below to 900 ℃ in 600 ℃ above, if the; such as diatomite, asbestine calls; of goods of microtherm heat insolation to reach what use below 1200 ℃ in 900 ℃ , if clay pledges adiabatic brick bleachs bead brick to wait, in calling, ; of lukewarm adiabatic goods uses temperature prep above of 1200 ℃ above call high temperature heat insolation refractory products, like tall aluminium qualitative, Molaishi gets together firebrick of heat insolation of brick of brick of light heat preservation, silicon qualitative heat insolation, alumina. By bulk density cent bulk density is more than or be equal to 0.4g/cm3 call; of general and adiabatic firebrick to be less than 0.4g/cm3 call exceed light qualitative adiabatic firebrick. By products lumber qualitative cent can be divided for diatomite qualitative, clay pledges, silicon is qualitative, tall aluminium is qualitative, magnesian qualitative, zirconium dolomite is qualitative, qualitative etc. Pressing product figure cent to plant is the adiabatic firebrick that finalize the design, include to stick earthy, tall aluminium to pledge, silicon is qualitative and the; such as firebrick of certain oxide heat insolation is adventitious adiabatic and fireproof material another kind, if heat insolation is fireproof and pouring,expect etc. Mix with density in the international standard ISO2245 of formulate of international Organization for Standardization the heavy change that burn a line is not more than the experiment temperature cent of 2% to be 1100 ℃ , 1250 ℃ , 1400 ℃ , 1500 ℃ , 1600 ℃ , the breed such as 1700 ℃ .
The build by laying bricks or stones of adiabatic brick is built one, the of craft of wet build by laying bricks or stones of adiabatic brick 1 process mixes make build by laying bricks or stones build slop - working procedure is checked - curium cut brick of treatment heat insolation - build by laying bricks or stones is built. 2 mix make build by laying bricks or stones build slop (1) builds slop to introduce finished product when build by laying bricks or stones when fireproof mud or slop of clay of diatomite pink union, answer to adopt mechanical mix as far as possible, agitate time is not gotten little at 5min, slop consistency is controlled through adding water to measure. (2) falls in the circumstance of inorganic instrument agitate, appropriate is used immerse law, be about to mix the water of raw material fill that makes build by laying bricks or stones build slop to use is flooded, permeate naturally, immerse time is not gotten little at 24h, the decant after soaking goes redundant water is blended and be being become. 3 working procedure are checked (before 1) build by laying bricks or stones builds diatomite brick, whether does the interface that should check diatomite brick and kiln furnace housing accord with a requirement. (2) builds heavy-duty boiler setting when build by laying bricks or stones when, should before the examination whether does the quality of body of fireproof build by laying bricks or stones accord with requirement, accessory installation is correct. 4 curium cut treatment (1) is used at fault of body of adiabatic build by laying bricks or stones to seam the brick uses hand bladed saw or with brick or other treatment hacksaw curiums cut, cannot chop with bricky knife cut. (When batch of 2) adiabatic brick is machined, appropriate uses example control, underline directly with saw blade or steel needle. (3) machines precision to rise, adiabatic brick and contact of component of different profiled bar are in, should use embossing law to machine a line certainly. The build by laying bricks or stones of 5 adiabatic bricks is built (1) build by laying bricks or stones builds order and build by laying bricks or stones to build height to should be decided according to structure of system of build by laying bricks or stones. (2) adiabatic brick or light qualitative brick should pull line fault to seam build by laying bricks or stones to build. (Appropriate of 3) make level uses thick slop. Authorities ministry out of tolerance or have bury beforehand, when different brick block up, appropriate uses treatment brick make level. (When 4) build by laying bricks or stones builds adiabatic brick, smooth seam part is equal seam place appropriate to use the method that spread ash, stand seam place appropriate to use law of the ash that carry a sword to make grey crowded step. (5) heat insolation shoulds not be inside body of bricky build by laying bricks or stones stay set expand seam, but be opposite rightly when the activity of other equipment and component adiabatic brick, and expand value bigger when, should expanding fireproof fiber is used inside the limits of the value or other bouncy heat-insulating material replaces adiabatic brick. (6) is become of body of fireproof build by laying bricks or stones expand seam. Especially direct expand seam be opposite when body of adiabatic build by laying bricks or stones, the adiabatic brick of the place is replaced by the brick, brick of general application standard makes the same score build by laying bricks or stones or establish build by laying bricks or stones, fu covers expand seam can. (Application of 7) adiabatic brick squeezes build by laying bricks or stones to search by hand, unfavorable with mallet knock, the body of adiabatic build by laying bricks or stones that originallies to already working does not get knock, collision or other vibration. (The brick of body of 8) adiabatic build by laying bricks or stones seams width to should be less than 5 Mm. Slop brand and cooperate to ask than according with a design, what brick of heat insolation of wet build by laying bricks or stones seams is full degree must not under 80 ％ . 2, the craft of dry build by laying bricks or stones of adiabatic brick 1 general provision (qualitative, norms accords with the material of brick of heat insolation of 1) dry build by laying bricks or stones and filling design requirement. (2) does the appearance of brick of heat insolation of build by laying bricks or stones to answer in good condition, touch caustic to must not be used badly. (3) build by laying bricks or stones seams used filling to answer dry, can write property good, if have be affected with damp be affected with damp or knot round appearance, answer to be able to be used via the ability after stoving sift out. (4) does brick of heat insolation of build by laying bricks or stones to should use a fault to seam build by laying bricks or stones to build. The examination of the working procedure before 2 dry build by laying bricks or stones (before 1) build by laying bricks or stones is built, furnace kiln housing reachs relevant accessory to installation ends and should check qualification via working procedure. (2) in the van bricklaying or pouring and fireproof pouring when makings, body of bricky build by laying bricks or stones and pouring the normal execution condition that the construction quality of body should satisfy system of adiabatic build by laying bricks or stones, answer highly appropriate. (3) should be in between housing wall and body of build by laying bricks or stones narrow when build by laying bricks or stones of the fill inside groove is built, thoroughly cleared narrow the bricky bits inside groove, slop and other and sundry. 3 build by laying bricks or stones build a method (1) does brick of heat insolation of build by laying bricks or stones to answer with furnace kiln housing or before body of path build by laying bricks or stones is built to guide the face has step, if have,fraise should undertake machining handling. (2) does not have a requirement like the design, build conduit liner upside except build by laying bricks or stones (on semicircle) , the semicircle on the liner of fixed cylinder equipment and cone-shaped liner are usable outside law of annulus build by laying bricks or stones, the others all should use a fault to seam build by laying bricks or stones to build. (3) fault seams treatment, make level treatment, remodel treatment to should be accorded with curium the demand that cuts treatment. (The build by laying bricks or stones of 4) dry build by laying bricks or stones is seamed in should the adiabatic filling pink with dry cram, when wanting, can add in the mix into in filling a few common cement is dry mix even. Mix into adds the filling that has cement to should be filled. next just but build by laying bricks or stones builds below one.
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