Campus Internet Information Ethics in Japan: An Empirical Study
Campus Internet Information Ethics in Japan: An Empirical Study
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日本校园互联网信息伦理：实证研究
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
J. Keenan
中科院分区：
文献类型：
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作者：
Y. Nara;J. Keenan
PCT No. PCT/EP93/02681 Sec. 371日期1995年7月7日102（e）日期1995年7月7日PCT申请1993年9月30日PCT公开PCT公开号WO 95/09079本发明涉及一种由最大粒度小于2 mm、优选小于0.5mm的粉矿制造海绵铁团块的方法，其中将热的粉矿供给辊压机并通过辊压机压块以形成海绵铁团块。除了压块之外，在压块过程中还产生了在辊压机的压料袋的空间中压实的细矿石以及粉尘形式的细粉。这些组分被指定为返回物并从海绵铁团块中分离。然后在压块之前将返回物进料至细粒铁矿石。迄今为止，粉矿的加工在技术领域中引起了很大的问题。本发明建议，返回料在与海绵铁团块分离之后被直接供给到输送机系统，并且仍然热的返回料通过输送机系统基本上均匀地和连续地供给到仍待压块的热粉矿。这里，粉矿的平均粒度小于返矿的平均粒度。这使压块材料变粗，导致压块操作的选择性改进。
PCT No. PCT/EP93/02681 Sec. 371 Date Jul. 7, 1995 Sec. 102(e) Date Jul. 7, 1995 PCT Filed Sep. 30, 1993 PCT Pub. No. WO95/09079 PCT Pub. Date Apr. 6, 1995The present invention relates to a method for making sponge iron briquettes from fine ore with a maximum grain size of less than 2 mm, preferably less than 0.5 mm, wherein hot fine ore is fed to a roller press and is briquetted by the roller press to form sponge iron briquettes. Apart from briquettes, fine ore which is compacted in the spaces of briquette pockets of the roller press, as well as fines in dust form are produced during briquetting. These components are designated as returns and separated from the sponge iron briquettes. The returns are then fed to the fine ferrous ore prior to briquetting. The processing of fine ore has so far entailed great problems in the technical field. The invention suggests that the returns be directly fed to a conveyor system after having been separated from the sponge iron briquettes and that the returns which are still hot be fed by the conveyor system substantially evenly and continuously to the hot fine ore to be still briquetted. The mean particle size of fine ore is here smaller than the mean grain size of the returns. This coarsens the briquetting material, resulting in a selective improvement of the briquetting operation.