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Čížkovice plant presentation

Čížkovice plant presentation. 2011. Plant History and Milestones. 1898 Plant established 1910 Reconstruction - 3 rotary kilns (dry) 1929 Construction of one additional kiln for white cement 1945 Nationalization 1958 S witch from coal to heav y oil

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Čížkovice plant presentation

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  1. CEMENT Čížkovice plant presentation 2011

  2. Plant History and Milestones 1898 Plant established 1910 Reconstruction - 3 rotary kilns (dry) 1929 Construction of one additional kiln for white cement 1945 Nationalization 1958 Switch from coal to heavy oil 1971 - 75 New plant for cement and lime, new quarry location 1985 New heat-exchanger, 1500  1800 tpd 1991 Joint-stock company established 1992 Lafarge entered the company 1994 - 96 Reconstruction, new PH/PC, central control system, Horomill 1997 Lime production closed, new product introduced - DSL First alternate fuels introduced 2002Switch from heavy oil to lignite 2003 New concrete laboratory for concrete testing 2005 Installation of urea dosing system to reduce NOx emissions 2008 Investment into new packaging and palletizing line Start ofoperation of storage and homogenization shop for liquid wastematerials 2010 Lafarge and STRABAG join their cement activities, agreement was signed by representatives of both companies, which established the new company Lafarge Cement CE Holding GmbH

  3. Plant location and market 65 km to Prague 85 km to Dresden 1/3 export to Germany 2/3 domestic sales

  4. Cement productionLayout

  5. Main Equipment • Desulfurization limestone line (DSL) • dried low-CaO limestone (38-40% CaO, size 0.075/2 mm) • double shaft rotary crusher • vibrating sieve • 260 ktpa Quarry • 3 excavators (Liebherr 984 and Liebherr 974 twice) • 3 dumpers (2 CAT 771, 1 CAT 769) • Hammer crusher (Krusnohorske strojirny, 850 tph) • Belt converyor to the plant (2,5 km) Raw mill shop • supplier Hischmann, 1974, max. production 210 tph • secondary hammer crusher, ball mill • two 1st generation dynamic separators Homogenisation • 9 homosilos, 1000 t each Kiln • 5 stages preheater with calciner channel (PSP, 1997) • kiln nominal output 2814 tpd, SHC ~ 3500 MJ/t clinker, 33 % primary fuels, 67 % alternative fuels • grate clinker cooler PSP+IKN system (1995)

  6. Fuelsubstitution development

  7. Development InvestmentsFocus on fuel cost decrease 2009/2010: Waste city 2010/2011: Cl-Bypass Objectives: Storage of hazardous wastes according to environmental legislation Reliable dosing of calciner fuels, 100% AF substitution on calciner Start up March 2011 Objectives: Increase of SSW on main burner Start up November 2011

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