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Thermally destructing organic sludge obtained from urban/industrial wastewater, by stirring/mixing organic sludge containing carbon, hydrogen and volatile/dry material with steel beads, and coating beads with thin layer of dry sludge
Thermally destructing organic sludge obtained from urban/industrial wastewater, by stirring/mixing organic sludge containing carbon, hydrogen and volatile/dry material with steel beads, and coating beads with thin layer of dry sludge
The process for thermal destruction of organic sludge, comprises stirring or mixing 1 kg of organic sludge containing carbon (49%), hydrogen (7%) and volatile/dry material (76%) with 100 kg of steel beads having diameters of 9-12 mm for 150 seconds thus lowering the average temperature of beads to 90[deg] C, and coating the beads with a thin layer of dry sludge, which disintegrates into dry fine particles. The dryness (95%) of the fine particles is carried out in a furnace at 105[deg] C. The fine particles are separated from beads by screening, and transferred into an oxidation chamber. The process for thermal destruction of organic sludge, comprises stirring or mixing 1 kg of organic sludge containing carbon (49%), hydrogen (7%) and volatile/dry material (76%) with 100 kg of steel beads having diameters of 9-12 mm for 150 seconds thus lowering the average temperature of beads to 90[deg] C, and coating the beads with a thin layer of dry sludge, which disintegrates into dry fine particles. The dryness (95%) of the fine particles is carried out in a furnace at 105[deg] C. The fine particles are separated from beads by screening, and transferred into an oxidation chamber at 850[deg] C for 2 seconds by a reaction with air mass of which the oxygen content is 8-10% above the stoichiometry. The reaction transforms the particles into gas and ash. The beads are heated using 60% of gas fumes by solid/gas heat exchange. The speed of movement of the gas fumes through the mass of beads for solid/gas exchange is 14 m/s at the beginning and 8 m/s at the end of the exchange. The fumes at the end of the exchange contain 30% of initial heat, and accelerate the drying process of sludge during the stirring. The obtained wet fume and water vapor mixture has an average temperature of 140[deg] C. The wet fume is mixed with water having an average temperature of 20[deg] C by condensation process. The incondensable gases resulting from the mixing of wet fume and water are purified from the residual volatile organic compound and other poly chlorinated dibenzo-p-dioxins (PCDD) and poly chlorinated dibenzo furans (PCDF) by solubilization of oil flow at 20[deg] C before discharge into the atmosphere at average temperature of 22[deg] C and according to the international regulatory standards. The thermal destruction process is carried out under an average relative pressure of 3500 Pa. An independent claim is included for a device for thermal destruction of organic sludge.
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机译：热销毁有机污泥的方法包括将1千克含碳（49％），氢（7％）和挥发性/干燥材料（76％）的有机污泥与100千克直径为9-90毫米的钢珠搅拌或混合12mm持续150秒，从而将珠子的平均温度降低至90℃，并且用干污泥的薄层涂覆珠子，该干污泥的薄层分解成干燥的细颗粒。细粒的干燥（95％）在105℃的炉中进行。通过筛分将细粒与珠分离，并转移到氧化室中。热销毁有机污泥的方法包括将1公斤含碳（49％），氢（7％）和挥发性/干燥材料（76％）的有机污泥与100公斤直径为9- 12mm持续150秒，从而将珠子的平均温度降低至90℃，并用干污泥的薄层涂覆珠子，该干污泥层分解成干燥的细颗粒。细粒的干燥（95％）在105℃的炉中进行。通过筛分将细粒与珠粒分离，并通过850℃将其转移到850℃的氧化室中2秒钟。与空气中的氧气含量比化学计量高8-10％的反应。该反应将颗粒转化为气体和灰分。使用60％的气体烟气通过固/气热交换加热小珠。气体烟气在固体/气体交换过程中穿过小珠团块的移动速度在交换开始时为14 m / s，在交换结束时为8 m / s。交换结束时的烟气中含有30％的初始热量，并在搅拌过程中加速了污泥的干燥过程。所获得的湿烟气和水蒸气混合物的平均温度为140℃。通过冷凝过程将湿烟气与平均温度为20℃的水混合。通过溶解20°的油流，从残留的挥发性有机化合物和其他多氯二苯并对二恶英（PCDD）和多氯二苯并呋喃（PCDF）中纯化出湿烟气和水混合产生的不凝气体。根据国际法规标准，在平均温度为22℃释放到大气中之前，温度为50℃。热破坏过程是在3500 Pa的平均相对压力下进行的。对有机污泥进行热破坏的装置也包括一个独立的权利要求。
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