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Industrial Study on a New Technology of Reducing SO2 Emission in Sintering Flue Gas

机译：烧结烟气中减少SO2排放新技术的工业研究

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In this paper,a new approach of reducing SO2 emission in sintering flue gas is proposed.The principle is that some kind of additives is introduced into feed mix,the additives decompose into NH3 in sintering process during heating,the NH3 reacts with SO2 gas to form ammonium sulphate solid particles,the particles are captured as dust by ESP,so the removal of SO2 in sintering flue gas is achieved.The study results show that the concentration of SO2 in sintering flue gas decreases gradually with the increase of additive amount,when the specific quantity of additive is 3.02kg per ton mix,the decreasing rate of SO2 is up to 81.33％(mass).Since sintering dust must be recycled as raw materials,in order to solve the problem of flue gas SO2 concentration is gradually increasing,the approach of increasing the amount of additive can be taken,or the dust is separately treated for sulfur removal before being used as raw sintering material.The new approach of reducing SO2 emission in sintering flue gas has advantages of low investment,small occupation area and low operation cost.Moreover,the additive is inexpensive and readily available,so sintering cost is not increased obviously.
机译：在本文中，提出了一种降低烧结烟气中SO2发射的新方法。该原理是将某种添加剂引入进料混合物中，添加剂在加热过程中烧结过程中的添加剂在烧结过程中分解为NH 3，使NH 3与SO2气体反应形成硫酸铵固体颗粒，颗粒通过ESP捕获为灰尘，因此实现了在烧结烟道气中的SO2去除。研究结果表明，随着添加剂的增加，烧结烟气中SO2的浓度逐渐降低，何时逐渐降低含量为3.02kg的含量为3.02kg，SO2的降低率高达81.33％（质量）。烧结粉尘必须被再循环为原料，以解决烟气SO2浓度的问题逐渐增加。 ，可以采取增加添加剂量的方法，或者在用作原料烧结材料之前分别处理灰尘以进行硫去除。减少烧结烟道G中SO2排放的新方法由于投资低，占用面积和低运营成本低的优点。over，添加剂廉价且易于获得，因此烧结成本显然不会增加。

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