Body of kiln of type of high temperature shuttle (firing chamber) it is the vacuum that makes by top of kiln wall, kiln and kiln car line. The wall of pledges firebrick build by laying bricks or stones is become gently shuttle type kiln that collects appliance to have good urgent cold sex and urgent hot sex, the wall outside its uses siliceous aluminous fiber. Siliceous calcareous plate. The adiabatic insulation material such as cliff cotton is used at heat preservation. The surface inside insulation layer but stickup 50mm is thick high temperature resistant fireproof fiber, in order to prolong the service life of insulation and insulation material. Outside kiln wall, via commonly used 3~5mm large board wraps Fu in order to improve kiln the intensity of furnace is amiable close sex. However, contemporary total fine is in from furnace of shuttle type kiln interior of its metal carapace uses fireproof bolt to undertake be fixedded directly to its.
Shuttle type kiln is energy-saving the method belongs to intermittent kiln as a result of it, loss of reason kiln accumulation of heat is big, loss of quantity of heat is big, smoke Wen Gao, quantity of heat is used up big. Because need to add unit of exhaust utilization of waste heat, this one blemish got huge is improved. Normally the temperature of furnace of this kind of kiln is spent in 1350-1650, flue outlet temperature is spent in 1100-1400 between, wasted much quantity of heat so, heat energy utilization rate is 20-40% only, if use heat exchanger, can reclaim the quantity of heat inside flue, heat up hot combustion circularly, dry, or other utility.
If use metallic heat exchanger, can reclaim more than heat, but when flue temperature exceeds 800 to spend, metallic heat exchanger suffers high temperature extremely easily to destroy, cannot realize more than heat to reclaim. For example, usually kiln temperature prep above 800 degrees, and flue temperature is in 800 degrees the following, this is the situation that suits use metal heat exchanger it seems that, but if have power failure. Light tolerance to slant big. Support combustion the circumstance such as wind force inadequacy, can make the temperature of metallic recuperator rapid prep above 800 degrees. Compare with photograph of heat exchanger of pottery and porcelain, had broken through this difficulty, heat exchanger of pottery and porcelain is like next characteristics: 1. High temperature resistant, anti-corrosive, because this can place heat exchanger of pottery and porcelain,be near flue exit. Temperature is higher, criterion the others hot utilization rate is high, heat exchange efficiency is tall, energy-saving effect is good. But, place metallic heat exchanger go up in heat exchanger of pottery and porcelain, burn out quickly. 2. Service life respect, similar case, heat exchanger of pottery and porcelain is metallic heat exchanger multiple or number is decuple. 3. Be like need not heat exchanger, support combustion normally wind temperature is normal temperature (- 10 ℃ - 40 ℃ ) , and support combustion through what heat exchanger of pottery and porcelain heats wind temperature can amount to 300 ℃ - 800 ℃ , can achieve energy-saving goal already, can improve environmental beneficial result again.
The main measure size that the many elements such as distributinging uniformity of ability of eject of the output demand that tastes with calcination to the design of kiln furnace dimension, item characteristics, nozzle, temperature determine put oneself in another's position of shuttle type kiln integratedly. (Inside kiln of 1) shuttle type tall it is the dimensional height that shows from kiln car mesa supports to kiln. Press the height that pile up a battlements more or less will decide the height inside kiln. For example magnesia brick because temperature of bate of its to load is as firing as its temperature close, unfavorable and exorbitant, the height inside kiln is controlled in 1 meter commonly, and silica brick loses temperature of carring capacity bate because of its tall, the height inside its kiln is in commonly 1.9-2.1 rice; The in-house height of existing argillaceous brick and tall aluminous brickkiln is 1.5-1.9 rice and 1.1-1.5 rice respectively. On bricky stamp, the difference in temperature below also is one of influencing factor that should note when the temperature inside kiln is elevatory. The height of kiln increases, fluctuation difference in temperature increases, easy cause firing quality not all. Design of shuttle type internal diameter is 1508 millimeter. (The in-house width of kiln of 2) shuttle type is the distance between the two walls inside kiln. The crop of the width inside kiln and kiln and difference in temperature are concerned. As the accretion with wide kiln, crop increases gradually, too wide when central thermal drop is small. Location of kiln of latter-day shuttle type uses design of flat broad section more, is kiln aspect ratio HB commonly? 2, B is kiln inside wide, h is the height inside kiln; Because internal diameter of kiln of type of this kind of shuttle is designed,be 3016mm. (Of 3) arch heart choose. Kiln roof can divide shuttle type to support for vault and condole. Shuttle type is fireproof kiln, firing temperature is high, it is vault kiln more. Vault uses wedge brick build by laying bricks or stones to build, the option of arch heart angle is very important, arch heart angle is too small, arch body gets power too big, in the meantime, also give now defect appearance in use process, be like arch center part conversely big, arch radius is small, brick of the arch after be heated expands, arch can be squashed and produce craze phenomenon, arch is exorbitant at the same time, the space between vault goods increases, raise fluctuation difference in temperature. Arch center angle is ° of ~180 of half 60 ° , among them arch center part uses 60 ° above. Horn of heart of arch of kiln of type of this kind of shuttle uses 60 ° , radius 3016mm, arrowy tall 403mm. (The cross section of kiln of 4) shuttle type accumulates F=4.154m2, shuttle type kiln grows L=FV=7.222m. Operate circuit through what main measure designs afore-mentioned shuttle type kiln, the detail that realises each working procedure cannot be ignored. Such with respect to furnace of kiln of high temperature of can safe operation, sponsorial body is safe. Do weller in that way.
Kiln of type of shuttle of structure of kiln of high temperature shuttle is type of a kind of kiln car pours blaze kiln, its structure and traditional rectangle pour blaze kiln basic and identical. Burner of kiln of type of a shuttle is installed on structural frame of kiln car steel, kiln bottom is built with fireproof material build by laying bricks or stones go up in structure of frame of kiln car steel, igneous aperture is sucked by kiln namely. Raise flue to be set on kiln car, and pay kiln car copy flue and kiln car raise smoke passageway to be linked together, orbit of bottom of kiln car of kiln car edge is mobile, amount of kiln of basis of kiln car number is certain; Between kiln car, the setting has between kiln car and kiln car heal, arenaceous. Because the product is,the car is assembled outside kiln, and realize mechanization operation easily, relative to a furnace burning kiln at the tradition, improved labor condition, reduced labor intensity. Additional, shuttle type kiln uses burner of high speed temperature adjustment, products of combustion arrives with very fast speed eject inside kiln, the rate of convection heat exchange of enkindle child gets bigger promotion, make entire pit goods more old-style than be in thereby in kiln pouring blaze achieve the goal that heats equably more easily. Want to make kiln body high temperature resistant. Heat preservation function and particular mechanical strength, appropriate chooses thermal conductance low, thermal capacity is small, heatproof the fireproof material of shake (wait like fiber of high-energy effect pottery and porcelain) kiln of build by laying bricks or stones. Still install on wall of shuttle type kiln useful measure aperture, pressure to measure aperture to wait at the burner brick of cool spray head, observation hole, temperature. But, when starting a hole, want to notice not to let them affect build by laying bricks or stones to build intensity and sealing. Like be the same as other kiln furnace, the coping of type kiln also can divide shuttle to carry two kinds on the head for vault and condole. Vault is wedge brick, arch horn is ° of 60 ° ~180 commonly, among them 60 degrees of vault are used more. Fireproof material is common vault commonly light qualitative tall aluminous brick, above again Fu wait for light qualitative heat-insulating material with cotton of siliceous aluminous fiber, cliff. Interior of brick of vault of kiln of some shuttle type still affixes nature 50mm is thick high temperature resistant fireproof fiber, in order to reduce the quantity of heat that kiln carries on the head. Be lost quantity of heat, prolong the service life of vault brick. To wide and sectional contemporary kiln furnace, use flat-roofed type kiln to carry a structure on the head normally. The shuttle type kiln of smooth condole structure is very become by light qualitative different brick or fireproof fiber superposition, with boom condole is on the girder of kiln body. Because shuttle type kiln wants to undergo constant temperature change, should endure especially frequent. Quickness heats and the heat of acuteness refrigeration bilges cold shrink, kiln also should bear in the meantime inside of low frit volatile erode, accordingly, the build by laying bricks or stones that how chooses shuttle type kiln correctly builds material is the problem that deserves attention. Wall of kiln of groovy shuttle type uses brick of heavy qualitative clay or tall aluminous firebrick, have capacity of very high accumulation of heat, and it is good that kiln of contemporary shuttle type uses heat preservation property in great quantities. Rate of accumulation of heat is minor. The brick of light qualitative clay with body low density or light qualitative fireproof, tall aluminous brick and fireproof fiber. And contemporary total fine is energy-saving the kiln body of shuttle type kiln is folded by fireproof fiber entirely piece with its fixed machine spends a composition.
The accumulation of heat that kiln of type of high temperature shuttle uses fireproof data is energy-saving method 1. Kiln mouth accumulation of heat is energy-saving be to pass burner of type of oneself accumulation of heat to come true, burner of type of accumulation of heat telling a body is main by matrix. Fuel spout. Spout of high temperature air. Adiabatic conduit. The composition such as reversal valve. Usually, the spirit way that the installation on burner has 4 regenerator and 4 corresponding independence, polite way formed two opposite regenerator area of a work. With this kind of means, a working party is in eruptive, another working party has the effect of smoke evacuation accumulation of heat, after spending period of time, change through reversal valve. 2. The working process of burner of type of oneself accumulation of heat: When burner of oneself accumulation of heat is working, high temperature flue gas enters two regenerator below the effect that cites fan, pass quantity of heat matrix next. Have flue gas thermal drop discharging below to 200 ℃ . When regenerator approachs saturation, pass reversal valve switch, enter air this regenerator from opposite way, high temperature regenerator heats combustion air, at the same time will store hot style is cool, the combustion that can realize fuel so and quantity of heat reclaim.
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