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Improvement in segregation of sinter-mix through incorporation of magnetic charging chute at Sinter Plants

机译：通过在烧结植物中掺入磁性充电槽的烧结偏析的改进

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In conventional sintering process of uniform solid fuel distribution with sloping chute for charging the materials,heat deficiency at top layer and low permeability are commonly observed process deficiencies.These process shortfalls affect the quality,cost and productivity of sinter making.These process deficiencies are effectively tackled by incorporation of a “magnetic charging chute” in place of the conventional “sloping chute” in sinter machines.Magnetic field induced on charge materials by a permanent magnet provided in the charging chute,improves size segregation of charge materials by charging the coarser particles to the far side of the charging chute and finer particles to near the charging chute,into the continuously forward moving pallets.This improved segregation of charge materials effects in formation of highly permeable sinter-bed in the pallet facilitates improved permeability of the sinter bed.The magnetic field on the charge materials also helps in efficient segregation of magnetic ferrous metals consists mill scales and returns sinter fines,which are heat generative and low temperature melting capabilities,provide additional heat at the top for efficient sintering operation through improvement in yield at top layer of sinter bed.Laboratory trials with sinter raw materials were conducted by simulating the charging conditions in proportional scale to estimate the optimal magnetic field requirement in the magnetic chute applications.Mathematical equations were used to validate the magnetic strength,estimated through laboratory tests.On the basis of the laboratory tests,‘magnetic segregation chute’ has been designed,developed and successfully installed at commercial scale in one of the sinter machines of Durgapur Steel Plant and Bokaro Steel Plant.The industrial trials have witnessed various technological benefits such as increase in average air-filtration velocity,strength of sinter,machine speed,productivity and reduction in solid-fuel consumption and return-sinter fines.
机译：在常规固体燃料分布的均匀烧结过程中，具有倾斜的斜槽，用于对材料进行充电，顶层的热缺乏率和低渗透性是通常观察到的过程缺陷。这些过程的缺陷会影响烧结制造的质量，成本和生产率。有效的过程缺陷通过掺入烧结机中的“磁性充电滑槽”代替烧结机中的传统“倾斜滑槽”。通过在充电槽中提供的永磁体在电荷材料上引起的磁场，通过向较粗颗粒充电来改善电荷材料的尺寸分离在充电滑槽的远侧和更细的颗粒到充电斜槽附近，进入连续前进的移动托盘中。这种改善了在托盘中形成高度渗透烧结床的电荷材料的偏差促进了烧结床的渗透性。电荷材料上的磁场也有助于高效的S​​egregati磁性黑色金属组成磨削尺度并返回烧结料，这是热生成和低温熔化能力，在顶部提供额外的热量，通过在烧结床顶部的产量提高获得高效的烧结操作。具有烧结原料的制造试验通过模拟比例刻度的充电条件来估计磁力滑槽应用中的最佳磁场要求。使用实验室测试估计的磁力强度，估计了实验室试验的基础，“磁隔离滑槽”的基础'已在杜尔图尔钢铁厂和博卡罗钢铁厂的一台烧结机中设计，开发和成功安装。工业试验目睹了各种技术益处，如平均空气过滤速度，烧结强度，机器的强度固体燃料消耗的速度，生产力和降低ND Return-Sinter罚款。

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