Hearth, steel wraps those who use insulation material to have a place

March 15, 2024Nov 25, 2024


Hearth makes the advantage of heat-insulation layer analyse hearth structure to use light qualitative insulation material to make thermal insulation commonly with light qualitative insulation material, whole is pouring and pouring for working layer. The hearth structure that firebrick build by laying bricks or stones builds tradition of this kind of structure comparing has the advantage such as better integral sex, longer service life, but also put in a few inadequacy.
It is hearth after whole is pouring hard drawing of patterns (water seals groovy pattern plate to cannot take out) ; 2 it is hearth expands to outer shroud shift; 3, because drying-out heats up air to rise, hearth is bad and roast, do not take care a bit, can cause hearth blowout. Working layer chooses wash-and-wear explosion proof pouring makings, this are pouring time of makings drawing of patterns is short, have function of wash-and-wear explosion proof, when drying-out not easy blowout, and have higher strength, good thermal shock stability and fight aggressivity of ferric oxide skin, the ideal that is hearth job layer is used makings, be united in wedlock with distinctive construction craft appearance, can make sure hearth job layer is not outward annulus expands shift; Side of side of annulus of inside and outside uses prefabricated component, pouring when need not raise a standard, solved the problem with the bad drawing of patterns when hearth construction already, assured the dimension that annulus seams between annulus of hearth inside and outside again; Reduce thickness of hearth job layer, increase ply of hearth heat-insulation layer, raise sex of hearth heat preservation. Because the technology of fireproof data industry progresses, used a few high quality, efficient fireproof data, make boiler setting structure gets ameliorative, drop off of working layer ply, heat-insulation layer ply increases gradually, this is advantageous to improving performance of boiler setting heat preservation, but the characteristic that should notice structure of annular boiler setting, namely the upside ply of furnace wall is thicker than bottom a few bigger.


Firebrick of heat insolation of light-duty heat preservation and common firebrick compare brick of argillaceous heat insolation, weight is light, interior covers even petty air hole, porosity is tall. Such, can make sure furnace wall comes loose heat is less, fuel cost is reduced accordingly, light qualitative brick means accumulation of heat at the same time less, heat accordingly and refrigeration is faster, allow to be operated circularly quickly. Firebrick of heat insolation of light-duty heat preservation applies to temperature to be between ℃ of 900 ℃ ~1650.
Brick of Mo Laishi heat preservation uses high quality high pure and fireproof data, compare heavy demand according to the product, join organic and compound filling, via vacuum extrusion, high temperature agglomeration, make product of light qualitative Mo Laishi. Because Molaishi pledges heat preservation brick is had gently,pledge gently, the characteristic of heat preservation, use extensively at the heat-resisting surface of all sorts of hot project facilities, fireproof liner or heat-insulation layer, created a condition to raise facilities energy utilization rate, this product uses Molaishi advocate brilliant photograph, expensive aluminous fireproof stuff, general alumina content is between 65%-75% . Mo Laishi pledges fireproof temperature of the brick can exceed 1790 ℃ gently. The initiative temperature of load bate is in 1600-1700 ℃ . Compression of light 70-260MPa normal temperature. Heat-resisting performance is good.
Light qualitative tall aluminous brick is main raw material with aluminous alumina, al2O3 content not under the brick of light qualitative tall aluminous heat preservation of 48% . Tall aluminous qualitative adiabatic firebrick, basically use aluminous aluminous grog, it is raw material with clay, deserve to be reached with binder curium wood chip, to improve product performance, join the fine powder such as stone of line of industrial alumina, corundum, silicon, cyanite, silica. Can make bulk density be more than the product of 0.4g/cm3. Al2O3 content is different, bulk density is different, use temperature is different also, it is commonly between 1250~1350 ℃ , some can amount to 1550 ℃ .
Cast steel the choice of heat-insulating material of the thermal insulation that hire capable person and application. The groovy insulation material that include steel basically has warming plate of asbestine board, tall aluminous fiber, felt insulation to wait, heat preservation effect is poor, cause pollution to the environment. As a result of the flying development of accept rice material and technology, development of people success land gave strength of a kind of high temperature tall, heat conduction leads low, thermal capacity the compound reflex with low, good thermal stability is adiabatic board. It can lie between heat insulation to conduct at the same time, thermal convection current, heat radiation, it is a kind of adiabatic function good, the heat insulating materials of safe environmental protection. Structure of hole of composite material thermal insulation board is even, aeriform element is put between atomic hole equably, adiabatic effect is apparent. Because have the character of rate of low heat conduction and tall reflectivity, it prevents the hot exercise of aeriform element effectively, the coefficient of thermal conductivity that compares traditional organic or inorganic heat insulating materials is lower, smaller than dormant air even. Paper of 1 one silicone oil; 2 press quick glue; Cloth of 3- Bo fine; 4 one tinsel; 5- fiber gauze pink of 6 one metal; 7 one each other wears network polymer and fiber; Pink of silicon of 8- accept rice. 2 it is adiabatic principle. Use recipe of advanced compound reflex thermal insulation board and manufacturing technology, make material is had at the same time prevent aeriform member hot motion, reduce heat to conduct, action of radiant of block heat insolation, heat proof quality raises 3-4 than traditional heat-insulating material times. The quantity of heat that prevents convection gas is delivered basically rely on convection to come true, the low speed element of the high speed element of high temperature side and microtherm side produces collision, chase a layer to conduct heat. Because silicon of accept rice aperture is small powdery hole is very small, hole diameter is less than the average and free Cheng of aeriform element, aeriform element can store equably between atomic hole, gas generates flow not easily, the heat that prevents aeriform member effectively thereby moves. 2 it is to reduce conduct heat small pink is in accept Mi Konggui the grain when conducting heat is sectional accumulate with the interface between grain, naturally, coefficient of thermal conductivity is lower than traditional heat insulating materials also much. Small pink of silicon of aperture of this accept rice has the thermal conductivity of K of · of 0.016W/m · K~0.024W/m, it is the extraordinary hot stuff with a kind of extremely low thermal conductivity. To ply only the aluminum foil of 6m · 10m, coefficient of thermal conductivity is K of · of 0.038W/m · K~0.042w/m, it is a kind of very good heat insulating materials. 3 it is the block heat radiation that uses accept rice SiO and aluminum foil to form compound reflex is adiabatic board, use multilayer aluminum foil regards reflection as heat radiation, reflectivity achieves 87% above, make compound reflex adiabatic board the heat preservation result that achieves ideal.
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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