| 强迫油冷电磁除铁器在输煤港口中的应用 |
| 添加时间：2017/9/16 17:03:03 浏览次数： |
| 随着国民经济的快速发展，我国钢铁、电力、煤炭等行业也得到了突飞猛进的发展，需要的原料更多，同时对原材料的质量也提出了更高的要求，去除铁磁性杂质的任务也越来越艰巨。我国港口行业货物吞吐量由新中国成立初期1000万吨增长到2009年的76.57亿吨，货物吞吐量超过亿吨的港口达到20个，连续7年保持世界第一。我国港口集装箱吞吐量同样保持连续7年世界第一，近10年年均增长率达30%。我国已构成“布局合理、层次分明、功能齐全：的港口格局。在各大输煤港口码头、电力、冶金、煤炭、建材、矿山、粮食、化工等行业需求量逐渐增多。尤其在煤炭行业中，煤炭中混有雷管及残屑、铁钉等铁杂质，不仅影响煤矿、装货港的安全生产，而且给卸港及用户造成极坏影响，致使出口煤炭的质量和声誉下降。为了提高港口的输送能力，港口输送不断加大物料层厚度、提高带速，需求大型高除铁率的精细除铁设备，在此种情况下，强迫油冷电磁除铁器应运而生。 With the rapid development of the national economy, China's iron and steel, electric power, coal and other industries has also been rapid development, need more raw materials, at the same time, the quality of raw materials is also put forward higher requirements, the removal of the ferromagnetic impurities increasinglydifficult task. The cargo throughput of China's port industry increased from 10 million tons to 76.57 tons in 2009 at the beginning of the founding of new China, and reached 20 ports with cargo handling capacity exceeding 100 million tons, keeping the world for the first time in 7 years. Container throughput in China has remained the first in the world for 7 consecutive years, with an average annual growth rate of 30% over the past 10 years. China has formed a port layout with reasonable layout, clear levels and complete functions. In major coal handling ports, ports, electricity, metallurgy, coal, building materials, mines, food, chemical and other industries, demand has increased. Especially in the coal industry, coal mixed with detonator and scraps, iron nails and other impurities, not only affects the safety production of coal mine, port of loading, but also caused extremely bad influence to the discharge port and the user, resulting in decline in the export of coal quality and reputation. In order to improve the transmission capacity of the port, the port transportation increasing material thickness and increase speed, high demand of large iron removal rate of fine iron removal equipment, in this case, the forced oil cooled electromagnetic separator came into being. 我国现在的电磁除铁器普遍采用的技术： Technology adopted by electromagnetic Separators in our country: 1、磁系性能主要满足额定吊高处某一点的磁场强度，磁系分布面积较小，当运用到港口进行除铁时，给料速度达到4.5m/s以上，采用普通电磁除铁器只能吸起皮带表面的铁件，除铁率不到30% 1, the magnetic system performance to meet the main strength of the magnetic field of a high rated lifting point of the magnetic distribution area is small, when applied to the port for iron removal, the feeding speed can reach more than 4.5m/s, the ordinary electromagnetic Separators can only absorb iron belt surface, the iron removal rate of less than 30% 2、普通电磁除铁器磁系结构通常是将线圈自身散热通道进行散热，当磁场强度提高到1500GS以上时，磁系内部自身散热通道无法满足设备散热的需求。 2. The magnetic structure of the ordinary electromagnetic iron remover is usually to heat the cooling channel of the coil itself. When the magnetic field strength is increased to more than 1500GS, the internal heat sink of the magnetic system can not meet the demand of the heat dissipation of the equipment. 3、普通电磁除铁器传动系统带速在2-3m/s左右，然而港口输送带通常在4-6m/s，使得现在除铁器处理量无法满足使用效果要求，除铁效果降低。 3, ordinary electromagnetic iron drive system with speed at about 2-3m/s, however, the port conveyor belt is usually in 4-6m/s, so that now the amount of iron removal can not meet the requirements of use, the effect of iron removal is reduced. 强迫油冷除铁器与大型普通油冷除铁器相比，普通油冷除铁器的性能比较低，特别是在除净率要求很高的一些特殊的场合，如大件或细小铁件很难清除，如用港口输送物料洁净用除铁器可以做到性能足，结构紧凑，适合于除铁要求更高的生产场所，最后是大型普通除铁器的适应环境受限，而如用港口输送物料洁净用除铁器可以做到设计合理、适合在现场非常恶劣的环境下工作，如潮湿、粉尘较大、盐雾腐蚀严重的场所，其物料层比较厚的，输送机皮带事速比较高的情况下的物料中，均能清除铁磁性杂铁，适用范围极广。因此适合港口输送物料中带速较高料层较厚，除铁环境恶劣等现场，能够达到精细除铁的目的。 Forced oil cooled separator oil separator and large common cold compared to performance of ordinary oil cooling separators is relatively low, especially in some special occasions, in addition to the net rate is high, such as the large or small pieces of iron is difficult to remove, such as the use of materials for cleaning port separators can do performance, structure compact, suitable for removing iron demanding production sites, and finally large ordinary separators to adapt to the environment is limited, and as for the port transport material with the addition of clean iron can do reasonable design, suitable for a site is very harsh environments, such as humidity, large dust, salt fog corrosion serious place, its material a relatively thick layer of conveyor belt, what speed under the condition of relatively high material, can remove ferromagnetic iron impurities, wide application. Therefore, it is suitable for the port to transport materials with high belt speed, thicker material layer and bad iron environment, so as to achieve the goal of fine iron removal. |
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