Cement kiln warm-up takes / cent ungird / transfer belt / firing belt / cooling zone / kiln mouth uses fireproof material to should choose so:
(1) warm-up takes and divide ungird: The temperature of this two place is relatively inferior, the coefficient of thermal conductivity of requirement brick line small, wearability is good, the sulfur soda acid that comes from raw material, fuel in this area and chloridize are alkaline begin to volatilize, in the agglomeration inside kiln and rich collect, and the interior of infiltration brick. Common clay brick and alkaline reaction form potassium nepheline and leucite, make bricky face hair short, the generation inside bricky body expands and bring about craze to flake. And contain Al2O325% ～ 28% with SiO265% ～ the alkali resistance brick of 70% or brick of alkali resistance heat insolation are below constant temperature with alkaline reaction when, bricky surface forms the glair facing of a tall viscosity instantly, prevented to flake, but this kind of brick is resistless the use temperature of 1200 ℃ above. Because this warm-up belt uses phosphatic band commonly tall aluminium brick, fight flake tall aluminous brick or use alkali resistance brick.
Cent ungird is used commonly fight flake the tall aluminous brick with good sex, silicon not the brick is fought in the excel on function flake the tall aluminous brick with good sex, life makes an appointment with tower above than fighting the tall aluminous brick that flake one times, but the price is higher, the carborundum that kiln end uses the skin that fight a form into makings mouth appropriate is pouring makings.
(2) transfer take and firing belt: Transfer the skin that bring pit is not stable, ability of change of atmosphere of resistance of requirement kiln line is good, heatproof shake sex good, coefficient of thermal conductivity small, wear-resisting. Extrapolate Jian uses the country brick of magnalium pointed spar, but the coefficient of thermal conductivity of this brick is big, cylindrical shell temperature is high, opposite hear rate wants big, go against reduce specific power consumption. Domestic silicon not bricky coefficient of thermal conductivity small, wear-resisting, its function is on certain level can rival with import data phase. Firing take temperature tall, chemical reaction is intense, requirement brick line fights clinker aggressivity, fight ability of SO3, CO2 strong. Abroad uses brick of magnalium pointed spar commonly, but it is more difficult that this brick hangs kiln skin, and dolomite brick fights thermal shock sex bad, yi Shui is changed; It is better that brick of magnesian iron pointed spar is registering the result on kiln skin, but cost is too high. Home is new it is better that adoption low chromic square magnesian Shi Fu adds up to pointed spar brick to use a case.
(3) cooling zone and kiln mouth: Cooling zone and air temperature of kiln mouth place are as high as 1400 ℃ left and right sides, temperature wave motion is bigger, of clinker abrade and amiable those who flow erode very serious. The coefficient of thermal conductivity of requirement brick line is small, sex of wearability, heatproof shake is good; Fight the alkalescent brick with thermal shock admirable sex, brick of the spar that be like a needle or tall aluminous brick apply to cooling zone inside. Abroad recommends brick of use needle spar commonly, the coefficient of thermal conductivity of brick of Dan Jianjing stone is big, and wearability is bad. Home uses silicon to grind mostly in recent years brick and fight pare
Fall the wear-resisting brick with good sex. Kiln opening position uses heatproof shake sex more good pouring makings. What if wear-resisting fights the tall aluminous brick of thermal shock or steel fiber,add pliable but strong is pouring tall aluminium of makings and low cement is qualitative pouring makings, but in kiln mouth temperature use on extremely tall large kiln common or the corundum that steel fiber adds pliable but strong is qualitative pouring makings.
Zhengzhou flourish fills what fireproof material serves as major to be able to bear or endure the product of fireproof heat preservation that material produces manufacturer to be able to produce more than 40 kinds of different types, product type basically is from sort and recipe scale undertakes distinguishing, line of the products is various, basically can satisfy show level boiler, what steel-making chamfer place needs is high temperature resistant requirement, product quality is worth your reliance.
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