PRODUCT NEWS/產ռ新聞


Fata Aluminum Installs Green Sand Reclamation Plants at Tupy Saltillo Fata Aluminum recently installed a green sand reclama-


置ੇ生再砂湿ੇ، :[V_ 9GRZORRU ֧ ,GZG 'R[SOT[S


tion plant at the Tupy cast iron facility in Saltillo, Mexico. Termal and mechanical reclamation of metalcasting sand,


especially for green sand cast iron plants, makes it possible to reduce the purchase of new sand. Tis reduces the transport of sand and/or scraps from and to the plant. Sand reclamation also makes it possible to carefully monitor and control the sand used by the metalcasting facility, as the features of regen- erated sand are kept constant through the sand treatment that occurs through reclamation. Fata Aluminum developed its sand regeneration technol-


ogy, which consists of a mixed mechanical/thermal/mechani- cal treatment, in the 1980s and has implemented it in various cast iron plants, including Cifunsa and Teksid. Te Tupy Saltillo regeneration plant has an input capac-


ity of approximately 13 tons/hr of product to be treated and produces about 10 tons/hr of regenerated sand, which is used to manufacture cores. The plant, which entered full production in May


2015, processes excess sand coming from its green sand molding lines. Te material to be processed is first crushed to a maximum


size of 3 mm and then metal is separated from the sand, which is then sent for its first mechanical treatment carried out by a pneumatic attritor, designed and manufactured by Fata Aluminum, to remove most of the bentonite in the sand. Termal treatment follows, in which the sand regeneration


furnace, operating on the principle of the fluid bed, is heated by natural gas with a calcinated sand/air heat recovery device. Te hot sand leaving the calcination furnace drops by gravity into a heat exchanger con- sisting of two overlapping fluid beds where it meets a backflow of fluidization/ combustion air of the furnace. Specific valves, without


moving parts and there- fore suitable for high tem- perature operation, allow the sand to pass from one fluid bed to the one below, forcing the combustion/ fluidization air to cross


_V[:ङ١约缔ض萨ւ西墨֨ 近日，,GZG 'R[SOT[S 铸铁Դ安装д湿砂Ӈ生装置。 铁铸砂湿ث是ҿ尤，用ӯӇ械机չ收֛热ङ砂用造铸


砂ङԴ造铸ӟ进صӗ。量购采ङ砂新Ѻ降לਈ，પ来Դ ੧进砂旧ثй助有还用ӯӇ子砂。ҁ工输运ङ料废չ子 ङ砂生Ӈ，理ה生Ӈ过经子砂О֜，Ӳ控չ测डङূє 性ૅґ持६定。 世纪 年ї，,GZG 'R[SOT[S就已ूՇӟ ֨早


并，统系理ה械机 热 械机式合ז括包，术技生Ӈ子砂 )OL[TYG չ :KQYOJ 括包，Դ铁铸य़՟й用术技થر经已 Ҹ՛。 吨 时ش每О约量容ҵ输ङ置装生ӇURROZRG9 :[V_ 吨Ӈ生砂，这пӇ生 时ش每О率ф生，սф理ה待 年 月已经实现Ҷি ֨置装થ。ਯ砂造Ӳй用砂 。子砂ѿךङি型造砂湿ҿਘ来理הਈ֨现，ф生 SS ङ 过超Љت尺成ॊঞ料材ङ理ה要ر，ү首 ङ来ӟख़ӣرӇ，来ӟख़ӣИ子砂ђً金رե然，ট颗 Ծ除৲ђ，理ה械机次一আ੧进机ॊ磨动气ӱ送运子砂 ৱઋગङ机ॊ磨动气ङ用҅Иҿ。֦润膨数ךङИ子砂 չӲ造商Э是 ,GZG 'R[SOT[S。 થ，炉生Ӈ子砂用҅理ה热，理ה热੧进子砂ثե然


砂烧煅Ճљ气然מ过通它，床化流是理Խҁ工ङ炉生Ӈ ҁ力重֨ե炉烧煅开ख़砂热。热加置装收֛热气空 子 Ӈ生炉助燃空气 流֛用ҁ化流Њ，֘换с热ҵ落Ј用 。成ু床化流ङՌ重ЗДं֘换с热Иҿ，汇с ҅用没有活动零ў、 适合高温ҁЏङ特殊阀 门，有助й砂子穿过一 张流化床进ҵЈ面ङ一 张流化床，迫҅助燃 流化空气穿越这Д张热 с换流化床。通过这य़ 方法，空气ӱ达煅烧炉 煅烧室Фӹ，就已经预 热ӱ接近煅烧ङ砂子ङ


The Tupy Saltillo regeneration plant has an input capacity of approximately 13 tons/hr of product to be treated and produces about 10 tons/hr of regenerated sand, which is used to manufacture cores.


:[V_ 9GRZORRUӇ生装置ङ 吨 时ش每О约量容ҵ输 每О率ф生，սф理ה待


吨Ӈ生砂，这п 时ش Ӈ生砂用йӲ造砂ਯ。થ 年 月已经 ֨置装 הਈ֨现，ф生িҶ现实 ךङি型造砂湿ҿਘ来理 ѿ砂子。


54 | FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION June 2016


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