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Method for co-processing arsenic-containing waste residues through rotary kiln
The invention discloses a method for co-processing arsenic-containing waste residues by a rotary kiln, which specifically comprises the following steps of: crushing and screening waste residues, charging and granulating, preheating the rotary kiln and performing high-temperature incineration co-processing to obtain furnace slag. According to the method, arsenic in the waste residues can be efficiently removed, compared with a traditional treatment method, the treatment time is shorter, the efficiency is higher, raised dust is subjected to tail gas treatment, secondary pollution is prevented, sodium thiosulfate, incineration fly ash, pulverized coal, rock, a binder and a proper amount of water are mixed and then subjected to proportioning granulation, the added pulverized coal enables arsenic-containing waste residues to be fully combusted, the particle size is small, and the arsenic-containing waste residues can be recycled. Therefore, the arsenic removal rate is improved, the arsenic is solidified into the clinker by effectively utilizing preheating and high-temperature incineration of the rotary kiln, the activity of the arsenic is reduced, and thorough harmlessness of the arsenic-containing waste residues can be realized.
本发明公开了一种回转窑协同处置含砷废渣方法，具体包括如下步骤：废渣粉碎筛分、加料制粒、回转窑预热和高温焚烧协同处理，得到炉渣。本发明可以将废渣中的砷高效去除，与传统处理方法处理时间更短，效率更高，扬尘经过尾气处理，防止二次污染，将硫代硫酸钠、焚烧飞灰、煤粉、岩石、粘结剂和适量的水进行混合后配比制粒，加入的煤粉使得含砷废渣粒充分燃烧，且粒径小，燃烧更彻底，从而提高砷的去除率，有效利用回转窑的预热和高温焚烧将砷固到熟料中，降低了砷的活性，可实现含砷废渣的彻底无害化。
Method for co-processing arsenic-containing waste residues through rotary kiln
The invention discloses a method for co-processing arsenic-containing waste residues by a rotary kiln, which specifically comprises the following steps of: crushing and screening waste residues, charging and granulating, preheating the rotary kiln and performing high-temperature incineration co-processing to obtain furnace slag. According to the method, arsenic in the waste residues can be efficiently removed, compared with a traditional treatment method, the treatment time is shorter, the efficiency is higher, raised dust is subjected to tail gas treatment, secondary pollution is prevented, sodium thiosulfate, incineration fly ash, pulverized coal, rock, a binder and a proper amount of water are mixed and then subjected to proportioning granulation, the added pulverized coal enables arsenic-containing waste residues to be fully combusted, the particle size is small, and the arsenic-containing waste residues can be recycled. Therefore, the arsenic removal rate is improved, the arsenic is solidified into the clinker by effectively utilizing preheating and high-temperature incineration of the rotary kiln, the activity of the arsenic is reduced, and thorough harmlessness of the arsenic-containing waste residues can be realized.
本发明公开了一种回转窑协同处置含砷废渣方法，具体包括如下步骤：废渣粉碎筛分、加料制粒、回转窑预热和高温焚烧协同处理，得到炉渣。本发明可以将废渣中的砷高效去除，与传统处理方法处理时间更短，效率更高，扬尘经过尾气处理，防止二次污染，将硫代硫酸钠、焚烧飞灰、煤粉、岩石、粘结剂和适量的水进行混合后配比制粒，加入的煤粉使得含砷废渣粒充分燃烧，且粒径小，燃烧更彻底，从而提高砷的去除率，有效利用回转窑的预热和高温焚烧将砷固到熟料中，降低了砷的活性，可实现含砷废渣的彻底无害化。
Method for co-processing arsenic-containing waste residues through rotary kiln
一种回转窑协同处置含砷废渣方法
LI XIANMING (author) / TAN LONGHUI (author) / LI MENGTING (author) / HU XIAOWU (author) / CHEN SHIYONG (author) / HUANG HUI (author)
2023-04-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F23G
Einäscherungsöfen
,
CREMATION FURNACES
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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