Dec 07, 2019 The so-called snowman in the grate cooler is a name get from the image itself. In fact, it means the clinker accumulates under the rotary kiln before go through into cooler which become higher like a snowman. In severe cases, it can be blocked at the kiln outlet and the clinker can not move out. The main causes of snowman:
Mar 22, 2019 Grate cooler is the main equipment for cooling clinker in new dry cement production.But in the use of the snowman phenomenon often appears.What is a grate cooler snowman?The so - called grate cooler pile snowman is a kind of image of the name, is actually a block yo.That is, in the grate cooler in front of the wall of the rotary kiln tube to the back of the unloading chute, the moving grate
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Dec 08, 2010 Sometimes, large lumps of kiln coating may act as a base for the formation of 'snowmen'. Left unchecked, these 'snowmen' may eventually grow to reach the mouth of the kiln, and block the discharge of clinker from the kiln. There are two methods for removal of snowmen;-1. Shoot them out with a kiln cannon. or better still; 2
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Apr 23, 2013 A variety of cooling grates for cooling cement clinker have been developed and … to the surfaces of adjoining pieces of clinker in the cooler and cause the clinker to … caking, but the formation of snowmen during the cooling of cement clinker
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Jun 22, 2018 In general build-ups in the cement production often cause kiln shut downs with the result of additional cost. Fact is that every identification of a possible problem leading to loss of production means a prevention to reduce cost. Along a developed checklist a cement plant with Snowman formation was checked
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May 14, 2013 Dusty clinker formationWhen the kiln is dusty the snow man problem starts. The dust falls on the coolerand blows back into the kiln which is carried away by secondary air stream. Ifsecondary velocity is more than 5 m/s the finer dust is carried into the kiln and thevelocity of combustion air and combustion products further shoots up near the flamewhich carries the dust further in side the burning
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Apr 07, 2008 Snow man formation in clinker cooler. In our plant we are facing frequent snowman formation problem (formation of heeped coatings near cooler inlet and kiln hood).We are using 6 blasters of 5 kg/cm2 pressure which are operating normally
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In Cement Industry, A snowman is the formation of Clinker as a heap which falls out of a hot Kiln into a cooler compartment. Removed by Flag of Scarborough, ON, Canada UTSRelativity (Talk) 02:50, 26 July 2005 (UTC) Ought there perhaps to be a blurb on the difference between eastern and western depictions of
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The Snowman Problem. A cement plant in the Midwest has reported major buildup issues in their cooler, known as the “snowman”. A snowman is caused when clinker pouring out of the kiln does not move down through the cooler on the moving floor grates and begins to build upon itself, forming a large mass of hard clinker blocking off the cooler and the air flow
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Some cement plants incorporate into the cooler a boroscope inspection camera in the visible spectrum to inspect the cooler’s interior and identify so-called “snowmen”. Snowmen are formations of large buildups on the cooler’s first (static) grate or the kiln discharge wall where the clinker falls from the kiln
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While as when SM is too low, more melt is formed in kiln, issues like thick kiln coating, kiln melting, snowman formation in cooler are more prone. Normal range of SM is 2.3-2.7. Alumina Modulus (AM) is the ratio of content alumina oxide to iron oxide. AM signifies the temperature at which liquid formation starts, the nature of liquid formed
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It is fact that cement industry has seen a sea of developments in the area of production enhancement (from 50 tons/day/kiln to 10000 tons/day/kiln) and energy consumption (from 1400 kcal/kg-clinker to 670 kcal/kg-clinker) and 160 kwh/ton-cement to 70 kwh/ton-cement)
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Cement.technology. Red river is a phenomenon in grate cooler; it is often a red hot narrow stream of fine clinker with a higher temperature than the neighbored clinker and appears far down in the cooler. The fact that especially large diameter type kilns tend to discharge fine clinker on the kiln’s load side and coarse clinker on the opposite
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Mar 01, 2011 Kiln capacity increased from 6100t/day to 6300t/day. This could be further increased to 6750t/day. Specific fuel consumption decreased from 795kcal/kg of clinker to 770 kcal/kg of clinker. After phase II this could be further reduced to 729 kcal/kg of clinker. The cement mill capacity was increased from 135t/hr to; 145t/hr
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The grate cooler is a type of clinker coolers, it plays an important role in the clinker manufacturing process. The grate cooler in a cement plant cools and transports the cement clinker from the rotary kiln, and provides heating air (secondary air) for the rotary kiln and preheater.The performance of the grate cooler will directly affect the production efficiency, energy consumption, and
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Mar 15, 2012 The objective . Titan Florida had recently finished the installation of a new production line supplied by FLSmidth and wanted FLSmidth’s help to deal with a number of challenges, including severe snowman formation caused by chemistry fluctuations. Every eight hours their kiln was creating a snowman – and while their pit crew could hydroblast it out of the cooler inlet in less than 30
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A very important process during cement production is the cooling of the clinker, since to a large extent the quality and characteristics of the cement depend on this phase. The hot clinker produced in the rotary kiln is transferred to a cooler, where it is cooled by air blowers before being conveyed to the cement mill
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Training for Pioneer Cement Operation Kiln Operation Free Lime, FCaO Control Range 0.5-1.5% FCaO 0.5 Hard burn clinker Lead to snowman at Cooler Use higher heat consumption Harmful to brick life. Training for Pioneer Cement Operation Kiln Operation Free Lime, FCaO FCaO 1.5 Low quality of clinker Dusty clinker. Training for Pioneer Cement
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