Sticky earthy firebrick is the fireproof product that produces for raw material with fireproof clay. Use on industry very extensive. Clay brick cent is brick of clay of completely brick of common clay brick, much grog clay, raw material and Gao Gui the breed such as qualitative clay brick. Clay brick is to slant acidity fireproof material, the addition as content of the Al2O3 in the brick its acidity wear off. Its thermal conductance is all and fireproof material in low. Its are fireproof although be as high as 1700 ° C,spend, but only 1300 ° C controls loading bate temperature, this is the big drawback of clay brick, when because this is in,high temperature is used, cannot bearing, cannot press press. When its are eroded by a large number of R2O, its bate temperature drops to be controlled to 1050 ° C further even, the bottom that can be used in Chi Bi only so or pool bottom temperature are inferior place. The heat of clay brick expands leading is commonly used and fireproof material in small. Because clay brick is crystal petty, air hole is small at the same time and distributing even, make stress gets amortize more easily, because this is heatproof inside very big range concussion sex is strong. The fireproof material fittings near the feeder on inferior place checker brick, flue and furnace of pool of daily expense glass is like regenerator bottom temperature the requirement such as bowl of drift, makings fights the place with thermal shock good sex, can produce effect adequately. Brick of clay of wave motion of function of clay brick physics belongs to one of siliceous aluminous goods main breed, be the Al2O3 content that makes aggregate, fireproof clay make bond be made with clay grog for 30% ? The refractory products of 48% . Of clay brick fireproof spend wave motion to be between 1580-1770 ℃ , loading bate temperature is mixed because of chemical and mineral composition send density to differ have very big difference, heatproof shake sex is better. Use at working temperature to be in commonly the place of vitreous kiln furnace under 1300 ℃ . Does the clinker scale of sticky earthy goods fluctuate normally at 50% ? 90% , make tall the goods of compact, high strenth and good high temperature capability, appropriate uses much grog recipe, namely 80% ? 90% , this needs corresponding land reasonable adjust granuality composition, adopt high pressure shapes and proper high temperature is firing, goods can obtain very good physics property. Because range of craft parameter change is very big, goods function also changes inside very big range, function of clay brick physics fluctuates normally. The ultimate cluster of clay brick (brick of 1) common clay this clay brick is by plasticity the soft qualitative clay with strong, dispersive big sex and partial clay grog are made up and become. Is the content that combines clay in commonly 40% ? 50% , and is the content of clay grog in commonly 50% ? 60% . Use commonly but model shapes and half dry process, norms also can be used specially pouring shape. Is common clay brick in commonly 1300? 1450 ℃ are firing. (Brick of clay of 2) much grog this brick is mixed with the grog of 80% above 20% the following union clay are made. Brick of much grog clay expects as a result of the brick much is in barren to change position, be out of shape not easily in production process, assured the over all dimension of adobe, make the goods after agglomeration has relatively ideal bulk density, mechanical intensity and heatproof shake property. The soft qualitative clay with general use stronger plasticity regards this as bricky bond. Because pug is medium combinative clay content is inferior, technical properties is poorer, shape have certain difficulty, outside controlling bricky machine except what use tall tonnage so, still need to add the bond of certain amount in bricky makings, wait like sulphurous acid pulp, the combinative function that expects in order to enhance a brick, improvement craft property. Of much clay grog firing temperature is average should prep above 1450 ℃ . (3) gives birth to material goods completely this brick is used directly broken the barren sex makings after and combinative clay make unfired brick, undertake direct agglomeration next. The manufacturing leave out of completely raw material working procedure of original to calcine, managing the sources of energy, reduced cost, and raw material grain is united in wedlock weller with combinative clay when goods agglomeration, those who raised adobe cause density and mechanical strength. But brick of completely raw material is in firing when the volume with be had certain is contractive, cannot produce brick of high quality clay consequently. (4) does not bake bricks this brick is clay grog grain, will fine pink or add a few union clay and chemical bond to mix again, pass the clay product that shape and makes. This kind of goods does not pass high temperature firing, production simplifies, in using a process actually, endure with firing the high temperature effect with not big difference in temperature and gradually agglomeration. (This brick place uses brick of clay of 5) low creep raw material must structure compact, purity tall, foreign matter is little. Goods still should have admirable heatproof shake stability and fight aggressivity, it is consequently in the process that make, still need to add a part to synthesize commonly Molaishi and fall in high temperature can the “ of translate into Mo Laishi raw material of 3 stone ” . Brick of low creep clay is controlled in 1400 ℃ commonly firing. (Brick of clay of small air hole of brick of clay of 6) small air hole is to be on the foundation of general clay brick, change what craft is made and become. Use fancy Jiao Baoshi to be main raw material commonly, join a few aluminous content is 55% ? 3 stone of the fine pink of tall aluminous aluminous grog of 70% or “ ” or pyrophyllite kind the mixed powder of expansile raw material is made. Make the size that fine pink controls even when the brick, in order to obtain compact base substrate. Commonner clay brick wants the aluminous content of brick of low stomatic clay tall, consequently firing temperature should compare common clay brick tall. This brick basically applies at the kiln furnace such as the vitreous kiln, blast furnace, furnace that mix iron. (Brick of 7) large clay this brick is general bigger, requirement sheet is in again 50kg above, does some heft 400 even? 500kg, use commonly pouring shape law. This brick basically is used in vitreous kiln. According to fireproof spent discretion, clay goods can be divided for the following 4 grade. ① special grade: Fireproof degree not under 1750 ℃ . ② is first-class: Fireproof degree not under 1730 ℃ . ③ is second-class: Fireproof degree not under 1670 ℃ . ④ third class: Fireproof degree not under 1580 ℃ . Fireproof material occurrence craze, fall off, easy how to wear away to do? Want to solve a problem thoroughly, need to be dug from germ, the analysis gives real reason, flourish Cheng Naicai is engaged in be able to bear or endure service of timber production, research and development is old, can solve all sorts of difficulty problems of liner of furnace of high temperature kiln, welcome broad new old friend to seek advice reach technical communication.
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