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Method for resource utilization of dezincification rotary kiln cooperated desilting sludge
The invention belongs to the technical field of desilting sludge resource utilization, and particularly relates to a dezincification rotary kiln cooperative desilting sludge resource utilization method. The method comprises the following steps: mixing zinc-containing dust sludge with pretreated dredging sludge to obtain a mixture; the mixture is conveyed into a rotary kiln to be subjected to roasting treatment, in the roasting treatment process, organic matter in the desilting sludge is decomposed in the rotary kiln, hot kiln slag and flue gas are generated through roasting treatment, secondary zinc oxide is obtained after the flue gas is subjected to two-time dust removal, and the flue gas subjected to two-time dust removal is subjected to desulfurization treatment and discharged; the hot kiln slag is subjected to water quenching treatment to form granulated kiln slag, the granulated kiln slag is subjected to magnetic separation, and magnetic separation powder and tailings are obtained. According to the method, the desilting sludge and the zinc-containing dust sludge are mixed and subjected to roasting treatment in the rotary kiln, and low-cost, large-quantity, full-quantity and resource utilization of the desilting sludge can be achieved.
本发明属于清淤污泥资源化利用技术领域，具体涉及一种脱锌回转窑协同清淤污泥资源化利用的方法。该方法包括以下步骤：将含锌尘泥与预处理后的清淤污泥混合，得到混合料；将所述混合料输送至回转窑中进行焙烧处理，在焙烧处理过程中，清淤污泥中的有机物在回转窑中分解，焙烧处理产生热窑渣和烟气，所述烟气经过两次除尘得到次氧化锌，两次除尘后的烟气经过脱硫处理进行排放；所述热窑渣经过水淬处理形成粒化窑渣，将所述粒化窑渣进行磁选分离，得到磁选粉和尾渣。本发明通过将清淤污泥与含锌尘泥混合并在回转窑中进行焙烧处理，可以实现清淤污泥的低成本、大宗量、全量化、资源化利用。
Method for resource utilization of dezincification rotary kiln cooperated desilting sludge
The invention belongs to the technical field of desilting sludge resource utilization, and particularly relates to a dezincification rotary kiln cooperative desilting sludge resource utilization method. The method comprises the following steps: mixing zinc-containing dust sludge with pretreated dredging sludge to obtain a mixture; the mixture is conveyed into a rotary kiln to be subjected to roasting treatment, in the roasting treatment process, organic matter in the desilting sludge is decomposed in the rotary kiln, hot kiln slag and flue gas are generated through roasting treatment, secondary zinc oxide is obtained after the flue gas is subjected to two-time dust removal, and the flue gas subjected to two-time dust removal is subjected to desulfurization treatment and discharged; the hot kiln slag is subjected to water quenching treatment to form granulated kiln slag, the granulated kiln slag is subjected to magnetic separation, and magnetic separation powder and tailings are obtained. According to the method, the desilting sludge and the zinc-containing dust sludge are mixed and subjected to roasting treatment in the rotary kiln, and low-cost, large-quantity, full-quantity and resource utilization of the desilting sludge can be achieved.
本发明属于清淤污泥资源化利用技术领域，具体涉及一种脱锌回转窑协同清淤污泥资源化利用的方法。该方法包括以下步骤：将含锌尘泥与预处理后的清淤污泥混合，得到混合料；将所述混合料输送至回转窑中进行焙烧处理，在焙烧处理过程中，清淤污泥中的有机物在回转窑中分解，焙烧处理产生热窑渣和烟气，所述烟气经过两次除尘得到次氧化锌，两次除尘后的烟气经过脱硫处理进行排放；所述热窑渣经过水淬处理形成粒化窑渣，将所述粒化窑渣进行磁选分离，得到磁选粉和尾渣。本发明通过将清淤污泥与含锌尘泥混合并在回转窑中进行焙烧处理，可以实现清淤污泥的低成本、大宗量、全量化、资源化利用。
Method for resource utilization of dezincification rotary kiln cooperated desilting sludge
一种脱锌回转窑协同清淤污泥资源化利用的方法
LIU ZIMIN (author) / MA MENGCHEN (author) / QIU QUANSHAN (author) / WANG QIANG (author) / CUI JIAN (author) / YU LEI (author) / ZHANG YAOHUI (author) / GUI MANCHENG (author) / RAO LEI (author) / HE JUN (author)
2024-11-01
Patent
Electronic Resource
Chinese
IPC:
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
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