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 References
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In over forty years of activity Cimprogetti has supplied and commissioned more than 400 plants world-wide, including lime kilns, hydrating and classifying plants, lime putty plants, packing lines as well as PCC (Precipitated Calcium Carbonate) plants.
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Technical Articles
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Simulation of lime calcination in PFR kiln - Influence of energy input and lime throughput (Code K_2011_EN-DE_022)
With the steady state one-dimensional mathematical model the lime burning process in the PFR kiln can be described. The solid core and surface temperature, the gas temperature, the calcination degree of the limestone, the heat loss by the kiln wal and the pressure drop along the height of the kiln can be simulated [...]
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Operating results of 500 tpd Cimprogetti lime kiln firing biomass, with option “syngas” (code K_2011_EN_021)
World Leading Industries have moved their process to reduce or make use of their processing of “alternative sources of energy versus fossils fuels”. CIMPROGETTI is sensitive to develop technical solution related to protect the environment, and has already implemented a series of studies in order to use of non-renewable fossil fuels and reduce overall CO2 emissions [...]
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Miglioramento ambientale coniugato al risparmio energetico
(code K_2010_IT_020)
Da sempre la scelta di Cimprogetti è stata contraddistinta dalla vocazione ad una progettazione di impianti che coniuga elevate performances di produttività ad una particolare attenzione alla sostenibilità ambientale.
Il nuovo forno rigenerativo Twin-D da 500 tonnellate/giorno installato presso Fornaci Zulian (Italia) è la più grande unità produttiva di ossido di calcio al mondo con l’utilizzo di BIOMASSA al 100% [...]
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High capacity (500-600 t/day) TSR lime kilns with innovative design (code K_2009_EN_019)
The success of a lime manufacturing business in a free market, mostly depends on having a competitive edge. Operating costs along with fuel flexibility and diluted maintenance are the real key factors, in the today competitive environment, able to determine whether a given kiln may represent the competitive edge of a new installation, or not [...]
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Lime Hydration Process Development (code H_2008_EN_004)
Different qualities of quick lime and hydrated lime have become needed to satisfy the new request arising from different industrial segments. In particular for hydrated lime, relatively newer industrial uses, such as Flue Gas Desulphurization, have required new product characteristics [...]
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Effective & Environmental Alternatives (code K_2008_EN_018)
Leading industrial groups in emerging countries such as India and China are progressively paying more and more attention to the possibility of using alternative fuels for lime production. Lean gases in some industrial sectors, e.g. the steel industry, represent unavoidable byproducts of their production process and must be either used or vented to the atmosphere. The opportunity to use them in lime production [...]
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Economic energy (code K_2008_EN_017)
The article investigates on the substitution of fossil fuels, the reduction of greenhouse gases emission, the reduction of production costs of calcium oxide and the diversification of of the supply of energy sources [...]
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Case study: Extreme Modularisation (code K_2007_EN_016)
Cimprogetti recently developed a “module” concept that includes remarkable modifications to the kiln design and construction
processes. Probably for the first time ever in the lime plants sector,
the company undertook an extreme preassembling process for two TWIN-D kilns [...]
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Regenerative kiln fired on Australian medium volatile bituminous coal at BSCS (code K_2005_EN_015)
The lime capacity of Blue Circle Southern Cement was increased by installation of a new Twin-D 85 fired on Australian medium volatile bituminous coal, namely Clarence coal, at its Galong lime plant. At the stage of design a key issue was the adaptation of the standard burning lance design to the Clarence coal combustion characteristics. To predict the pulverized fuel Clarence coal combustion using the patented “big pocket” burning lance, a numerical simulation has been carried out using Fluent commercial code. The kiln was successfully commissioned on January 2005 at 433 tpd capacity with 40 to 100 mm limestone stone
size [...]
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Lime for PCC manufacturing: the new Twin-C shaft kiln at Tagger lime plant (code K_2005_DE-EN_014)
The Tagger lime plant in Golling (Salzburg, Austria) was established more than 100 years ago. Since that time, Dachstein lime has been quarried at Ofenauerberg near the town of Salzburg and burnt in shaft kilns. In the mid 1990s, strategic considerations, together with the opportunity to supply lime for PCC manufacturing, led to the construction of a new shaft kiln. After careful evaluation of the kiln types available on the market and taking into account the lime quality required by the PCC manufacturers,Tagger decided to build a natural-gas-fired Twin-C annular shaft kiln supplied by Cimprogetti of Bergamo, Italy [...]
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Alternative fuels for Double Shaft lime Kilns (English version code K_2004_EN_013 - Chinese version code K_2004_CH_013)
Cimprogetti S.p.A., Italy, has examined the use of alternative fuels for double shaft regenerative TWIN-D® lime kilns. Various factors were taken into consideration, including the cost of exploitation, fuels availability, finished product quality requirements and the environmental impact.
Two case studies are presented here. The first concerns a 200 tpd Twin Shaft Regenerative kiln fired with pulverised anthracite installed at the Puklina plant in Bulgaria. The second focuses on a 260 tpd TWIN-D® NS 55 kiln at the Karabuk plant in Turkey fired by coke oven gas.
In both cases, the two substances proved their worth as alternative fuels when used with these types of kiln. The quality of quicklime produced was consistent and in accordance with the client specification [...]
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New enhancement of hydration plant technology (code H_2004_EN_002)
In recent years, a growing interest has been seen among lime manufacturers to produce different qualities of hydrated lime. Good hydrated lime quality can be achieved with a wide range of reactivity of the quicklime if the plant is correctly tailored for the scope [...]
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Dual fuel (code K_2003_EN_012)
The lime market in European countries demonstrates today a strong interest for the utilization a cost effective fuel for dual-fuels combustion equipment of twin shaft regenerative kilns, to optimize the thermal energy utilization, all over the year [...]
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Utilization of lean gases in lime burning with regenerative kilns (code K_2001_EN_009)
Today the markets in China and India are strongly oriented to the utilization of the lean gases in the lime kilns instead of the conventional fuels. The primary driving force for lime kiln fuel selection is cost. However, environmental issues play also an important role. Another driving force for fuel selection is product quality. The fuel influences the quality of the quicklime [...]
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