|
Lion the metallurgical chemical plant since the 1995 technical innovation Revamp, output continues to expand, the level of technology has greatly improved, and has grown to become an annual output of 20,000 tons of electrolytic zinc, 25,000 tons of sulfuric acid, metallurgical and chemical enterprises. Expansion to 30,000 tons / year of electricity accumulate zinc project building goals are: to rely on scientific and technological progress and improve the technical content of the principle of low-input, high-yield, for efficiency, to fully tap the potential of the existing facilities of the factory, through the renovation and expansion, the gold Lion the metallurgical chemical plant annual production by 20,000 tons of electrolytic zinc / year to 50,000 tons of electrolytic zinc / year, comprehensive recovery of valuable metals, especially scattered metal gallium, germanium recovery to reach the world, in terms of technology and equipment advanced level. Professional point of view from the smelting process, the Golden Lion metallurgy chemical plant expansion of 30,000 tons / year zinc electrowinning project feasibility study, proposed a program of continuous leaching process instead of intermittent leaching process. Includes program selection process argument, metallurgical calculations, the calculation of the main equipment selection, shop configuration, divalent metal recycling, link protection. The project construction period of 1.5 years from the date of completion of the construction drawing design proposed. After the completion of the project, the main products: zinc ingots (including Zn 99.995%): 30001t / a, a product more than the rate of not less than 85%, including: special grade greater than 20%; sulfuric acid (H 2 < / sub> SO 4 98%): 54000t / a. Byproducts: germanium slag (containing Ge 0.9 ~ 1.1%): 520t / a; copper cadmium cobalt slag (containing Zn 44%, Cd 4% of lead-silver slag (containing Pb 35 ~ 40%, Ag 0.1%): 2670t / a; ): 1051.550t / a. Casting scum (inclusive of Zn 85%): 1050T / a. Good production environment, polluting emissions. Annual sales income of 297,191,850 yuan, annual sales tax 20,078,540 yuan, the total annual cost of 248,155,430 yuan, annual sales profit of 28,957,880 yuan, 28,457,880 yuan of the total annual profit. Project investment profit rate is 14.23%, investment profit rate is 24.27%. The payback period in Excluding gallium effective and can not help but income tax case is 7.74 years, considering gallium product benefits, the payback period is expected to be reduced to 5.21 years. The project has a short payback period, the high rate of return on investment, the obvious economic benefits and other advantages. The feasibility study showed that Lion the metallurgical chemical plant expansion 30,000 tons / year zinc electrowinning project has fully exploit the existing potential, advanced technology and reliable, high level of equipment, less input, multi-output, high efficiency characteristics, can be expected , after the completion of the project, the economic efficiency of enterprises will be greatly improved, and lay a solid foundation for further new development.
|