What knot ring kiln sulfate obvious feature

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1, sulfate (CaSO4) bonding reasons (1) when driving is likely to cause the rotary kiln strong oxidizing atmosphere, some of the coke is burned prematurely,

reducing less, CaSO4 decomposition is incomplete. A melting point of 1226 ℃ CaS04 1350 ~ 1450 ℃ poured into a firing zone becomes melted liquid, the liquid

phase under normal conditions the material does not exceed 25% of the total material to 30%, the liquid phase component increases, the slurry becomes too thick,

resulting in material bonding. (2) rotary speed is too fast, accelerating velocity of the material in the kiln, and some decomposition of CaS not promptly recognize

the maximum temperature on entering the area, causing molten material. (3) insufficient loading loading rotary kiln, coal shortage of raw meal C and Si0: relatively

lower levels are dangerous, C low, less reductant, CaSO4 low melting point, easy to bond; SiO2 low, CaO for more, but also reduces the melting point, the critical

point biased downward trend, easy to bond. (4) raw material composition is not good, AI2O3, Fe2O3, P2O5 alkali content is high, the firing phase occurs early

material viscosity and ring formation. 2, the adhesive characteristics of the clinker sulfate form a non-circular irregular shape, generated block and more brittle

material has a porous, spongy. Clinker composition does not exist in CaO, CaS04 content> 3%, long-oxidizing atmosphere causes skin and kiln kiln lining

destruction and decline, strong oxidizing atmosphere, CaSO; violently heated and melted, causing the firing zone to depths ( 8 ~ 10m) flinch. 3, sulfate knot ring

handle (1) prohibits the rotary kiln running quickly. (2) increase the amount of coke and coal, correct kiln strong oxidizing atmosphere to restore the normal kiln

atmosphere and ring usually fall off. (3) When the oxidizing atmosphere of longer duration should be limited kiln exhaust volume. If you are trimming can

degassing tower by adding or subtracting the amount of air and a wash, two wash water pressure to achieve a substantial regulation by transforming the fan inlet

valve. (4) to take sudden fever, quench and regulate coal, wind, and other means to deal with the next quantity of ring. There is also the use of pulverized coal

nozzle necking, the flame is shorter, but the tip temperature is higher, and the use of mobile PCI guns, mobile location burned knot ring, increasing the amount of

coal, raising the temperature, but also allows knot ring melted down. Please indicate Henan YuFeng Heavy Machinery