Flourish Cheng Naicai is fireproof material kiln furnace applies technical channel begin lecturing, what share to everybody today is the knowledge that uses firebrick about industrial kiln furnace.
Industrial boiler asks with the type of firebrick and function industrial boiler is firebrick build by laying bricks or stones is built close firebox, burn in order to supply fuel, reach blaze of the flaming in boiler each heating surface and outside isolation to rise. Accordingly, requirement firebrick has hear resistance, adiabatic sex and sealing. Its are given priority to with different clay firebrick mostly with firebrick. 1, capacity of boiler setting structure is given priority to with heavy construction in the boiler setting of the industrial boiler under 35t/h, immediate step builds boiler setting to go up in the foundation of boiler. Boiler setting is comprised two layers by inside and outside, fireproof liner wall uses T-3 standard firebrick build by laying bricks or stones is become, adiabatic outside the wall is become with build by laying bricks or stones of mechanism red brick. To improve heat proof quality, the thermal insulation that has 20mm left and right sides stays between firebrick and red brick, fill heat-insulating material, or firebrick of heat insolation of diatomite of 16mm of inter build by laying bricks or stones. Requirement of 4 walls corner bites the wall outside red brick each other build by laying bricks or stones, make 4 walls form whole, wear with light-duty steel outside will outside mural band lives, steel wearing is not added outside the wall outside some, common brick of be similar in shape wall. Boiler setting ply is 360~730mm, lining is 116~232mm firebrick, outer for 240~480mm red brick. In the microtherm area of boiler rear flue, spend when smoke air temperature under 500 ℃ when, furnace moisture in the soil uses red brick build by laying bricks or stones to build entirely. 2, commonly used and vaulted roof and condole hang the roof structure of boiler of roof construction industry roof. Vaulted roof is comprised by firebrick of foot of the arch foot bridge of profiled bar, arch, wedge firebrick and heat preservation brick. Condole hangs roof to hang crossbeam, cable suspension, condole to hang brick and heat-insulation layer composition by profiled bar condole.
How is industrial kiln furnace machined with firebrick (1) is machined to the firebrick of furnace of large industry kiln, appropriate sets firebrick processing factory, so that have batch treatment. (2) firebrick processing factory should be set be inside firebrick storehouse or near storehouse. The area of firebrick processing factory should machine mechanical stage to count computation according to what needing firebrick, . Every mechanical place wants the area firebrick sort of firebrick processing factory area / the treatment that M2 general firebrick machines blast furnace of 12 ～ 15 M2 to use tall aluminous firebrick processing factory of 30 ～ 40 M2(3) firebrick must install the establishment that discharge dirt, wind is in charge of appropriate to use armor plate to make. Fanner appropriate uses middling pressure centrifugal type fanner, the dust that take out should be handled via removing dust, must not pollute an environment, operation personnel does good labor protection by the regulation. (Field mixes the bricky battlements of finished product of 4) treatment firebrick carriage passageway should level off, expedite; Add workshop ground appropriate to be set around the firebrick battlements of the spot temporarily. (Of 5) firebrick processing factory should accord with with report " site of construction project construction offers standard of the safety that use phone " the regulation of GB50194.
The use environment that aerification furnace damages with firebrick case study is aimed at aerification furnace firebrick reachs use situation, to its caustic corrode case study is as follows: 1) the Si that contains in slaggy eater, Al, Ca, Fe and salt of other minim metal kind the part that made eater, different coal is planted what can form different sort is slaggy, slaggy the osmosis that passes pair of bricks, fuse forms compound of low melting point with the composition of firebrick, changed bricky composition, compound of low melting point is eroded ceaselessly, bring about firebrick ceaseless by fuse, permeate, be denuded gradually thereby, enter by air current carry secretly stimulate cold room, form grey broken bits. The destruction of 2) thermal stress is existing as a result of the norms of firebrick and dimension the inhibition of temperature gradient and furnace casing, make firebrick produces annulus to stress, additional, the different composition of firebrick its coefficient of expansion is different, also can produce different thermal stress in bricky interior, leave often jockey bring about furnace temperature fluctuate considerably, also can make the thermal stress of firebrick produces the sudden appearance that change and causes a brick to produce crackle, make firebrick ceaseless by caustic corrode. If leave often,the influence operation operating mode of 3) operation operating mode is not stabilized jockey, temperature pressure wave motion and error of a few operations also are met the caustic corrode of aggravate firebrick, lift as what operate temperature, the caustic corrode rate of firebrick will increase. What the influence of 4) other element plants as a result of coal is not stable, the part that causes broken bits sends those who give birth to metabolic; burner to assemble dimension unqualified, cause effect of coal oar pulverization bad; burner is using later period, brick of furnace of coil leak; builds mass of build by laying bricks or stones poorer the use state that waits for other element to also change firebrick.
The place on put together appeals to, it is small above the relevant content that makes up smallness industrial kiln furnace to use firebrick. The welcome pays close attention to channel of technology of fireproof material manufacturer.
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