Shuttle type kiln configuration is approximate at the kiln of heating furnace of stage car type, heat treatment furnace, the type that it is shuttle that says in pottery and porcelain and fireproof data industry, shuttle type kiln not comes with corundum intensity of compression of stone brick normal temperature is more than stability of 100MPA, thermal shock (1100 ℃ water-cooling) be more than 10 times.
Shuttle type kiln is the kiln pouring blaze of type of a kind of kiln car, its structure and traditional rectangle pour blaze kiln essentially similar. The burner of kiln installs go up in wall of two side kiln; Kiln bottom is built with fireproof material build by laying bricks or stones the structure is worn to go up in kiln car steel, igneous aperture is sucked by kiln namely, raise flue locate kiln car to go up, make kiln wall lower a flue photograph join on flue and kiln car; Kiln car moves in orbit of firing chamber bottom, kiln car number inspects the cubage of kiln and decide; Reach between kiln car set between kiln car and kiln wall Qu Feng and arenaceous.
Shuttle type kiln not comes with corundum stone brick corundum Mo Laishi brick is it is main raw material with corundum, Molaishi, exceed fine pink and additive through adding silicon of right amount alumina, oxidation, base substrate shapes with 300t attrition compressor, base substrate density is 2.7g/cm3. Base substrate undertakes inside channel desiccator dry. ℃ of entrance temperature 40~50, temperature of senior officer dry 130 ℃ , dry time 48h, base substrate moisture is more than 1.5% . Goods is firing inside channel kiln, firing temperature is 1550 ℃ , 10h of heat preservation time.
Workmanship uses synthetic Mo Laishi to make corundum normally Mo Laishi brick, makings of grain of usable Mo Laishi is aggregate, α - Al2O3 pink expects for pink, frit of usable also report or agglomeration corundum grain expect for aggregate, synthesis Mo Laishi pink is pink to expect. Aggregate and powdery makings deserve to have burden by certain proportion and fraction, it is bond with waste liquid of sulphurous acid pulp, press one methodize feed in raw material. Mix practice adequately even, with attrition the machine that press a brick or hydraulic pressure press bricky machine to shape. After adobe is dry, at 1650 ~1750 ℃ firing. Some uses electric frit or agglomeration corundum is arenaceous for aggregate, comprise proportional α in order to have Molaishi or corundum Mo Laishi - the aluminous alumina with tall Al2O3 or clay mix fine pink to undertake for powdery makings burden makes a brick, mo Laishi brick sends the corundum that makes with this craft density is a bit poor, this craft application is not consequently wide, craft wants a place: Collect aluminium powder of oxidation of industry of in order to and pure clay, aluminous alumina or silica to be raw material complex raw material of pure Mo Laishi, especially content of alkali metal oxide should as far as possible low, it is good that with Mo Shi grain expects the product that makes for aggregate fights thermal shock sex, but fight aggressivity to be differred a bit, with corundum arenaceous the goods that is aggregate, be able to bear or endure corrode sex is good, but heatproof shake sex is a bit poor.
Because goods is to be outside kiln,shuttle type kiln uses fireproof data outfit, discharge, and operation of easy implementation mechanization, with the tradition suck type to pour blaze kiln photograph to compare, improved labor condition, reduced labor intensity. In addition, shuttle type kiln uses burner of high speed temperature adjustment, products of combustion with very high rate (LOOm/s above) eject enters pit, the hot to circulating rate of products of combustion is carried greatly from, entire pit goods is more old-style than be in kiln pouring blaze is firing achieve more easily heat equably, improve product quality, managing burnup.
Mo Laishi brick can contact corundum directly blaze, fight flake, high temperature resistant, can regard high temperature industry as the adiabatic line of furnace already, also can regard the job of furnace of kiln of other industry high temperature as the layer, basically apply at petrifaction industry, large and medium-sized furnace of synthetic ammonia aerification and stove of magnetic material gas use data, material of establishment of form a complete set of furnace of kiln of high temperature industry.
Kiln of compose of shuttle type kiln also is to have vault and condole tip very this two sort. Vault is to use wedge brick build by laying bricks or stones to become, arch horn is commonly between 180 ° of 60 ° ～ , among them the vault of 60 ° is used morer. Commonly used vault is fireproof material is light qualitative corundum Mo Laishi brick, enclothe again above firebrick have the light qualitative insulation material such as cotton of siliceous aluminous fiber, cliff. Of course some shuttle type kiln still are stuck in the inside of vault brick those who have 50mm ply is high temperature resistant fireproof fiber, in order to reduce the accumulation of heat that kiln carries on the head, service life that comes loose to heat up and lengthen vault brick. The shuttle type kiln with contemporary broader section often uses the kiln of the top that make the same score condole to carry a structure on the head. The kiln of shuttle type kiln of structure of the top that make the same score condole is very fold a place to form by different light qualitative brick or fireproof fiber, with boom general its are alone the ground or it is into group ground hoisting on the girder of kiln body.
Because want to undergo constant temperature change inside shuttle type kiln, should endure especially frequent, the heat that quickness heats and cools quickly bilges cold shrink action, and still play endure kiln inside of low frit volatile erode action, accordingly, the build by laying bricks or stones that how chooses form of kiln of shuttle type kiln correctly builds material is a notable problem. What the wall of kiln of traditional shuttle type uses is heavy qualitative saggar brick or fireproof tall aluminous brick, its harbour quantity of heat is very big, and kiln of contemporary shuttle type uses heat proof quality in great quantities good, accumulation of heat measures thickness of small, body brick of low light qualitative saggar or pledge gently fireproof tall aluminous brick and fireproof fiber, contemporary completely fireproof fibrous is energy-saving model the kiln body of shuttle type kiln is folded by fireproof fiber entirely piece reach its to secure machine plum place to form.
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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