发明名称 |
PROCESS FOR PRODUCING PHOSPHATIC FERTILIZER AND APPARATUS THEREFOR |
摘要 |
<p>The present invention provides a process that treats sludge or incineration ash emitted in greatest quantities and containing a phosphor component and that continuously produces a phosphatic fertilizer and an apparatus therefor. The process that produces a phosphatic fertilizer according to the present invention including the steps of continuously supplying a raw material composed of sludge or incineration ash containing a phosphor component and a reducing agent or a raw material composed of sludge or incineration ash containing the phosphor component, the reducing agent, and at least one of a magnesium component, a calcium component, a potassium component, and calcium-containing waste into a melting furnace which is kept in a reducing atmosphere while an interior of the melting furnace is kept in a sealed state such that the reducing atmosphere is kept in the melting furnace; keeping an inner temperature of the melting furnace at around 1400 °C, heating the raw material while suppressing evaporation of the phosphor component, and causing molten metals and molten slag to coexist in the melting furnace in a two-liquid separated phase; quenching molten slag which flows from the melting furnace; and crushing the quenched molten slag to grains having diameters of 50 µm to 2 mm.</p> |
申请公布号 |
EP1849755(A4) |
申请公布日期 |
2011.05.11 |
申请号 |
EP20050703334 |
申请日期 |
2005.01.06 |
申请人 |
SANKI ENGINEERING CO., LTD |
发明人 |
IWAI, YOSHIHIRO;JOZUKA, TETSUJI;KOMATSU, TAKASHI;TAKAGI, TADASHI |
分类号 |
C05B13/00;B09B3/00;C02F11/10;C05F15/00;C05G3/00 |
主分类号 |
C05B13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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