A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of solid waste recycling, and discloses a method for cooperatively treating household garbage and zinc-containing solid waste through a cement clinker production line, which comprises the following steps: cement raw materials enter a cyclone preheater I-1, are subjected to multi-stage preheating, then enter a decomposing furnace, and then enter a rotary kiln for clinker firing to obtain high-temperature flue gas and cement clinker; the household garbage, the zinc-containing solid materials and the auxiliary materials enter a pelletizer to be prepared into pellets, and the pellets enter a rotary kiln to generate zinc-containing flue gas; zinc-containing flue gas and high-temperature flue gas are converged and then enter a decomposing furnace and then enter a cyclone preheater I-2, heat is recycled, and secondary zinc oxide is obtained through recycling in a large chamber of a bag collector; tertiary air enters a cyclone preheater V, raw materials are preheated and then enter a small chamber of a bag collector, and waste gas is introduced into a chimney through a fan to be discharged. According to the method, the problem that the zinc-containing solid waste and the household garbage cannot be effectively utilized is solved, and the zinc hypoxide and the zinc calcine can be simultaneously produced on the basis of not changing the original cement clinker production line for producing the cement clinker.
本发明属于固体废弃物回收利用技术领域，公开了一种水泥熟料生产线协同处理生活垃圾和含锌固废的方法，包括以下步骤：水泥生料进入旋风预热器I‑1经多级预热后进入分解炉，之后进入回转窑进行熟料烧成，得到高温烟气和水泥熟料；生活垃圾、含锌固料和辅料进入造球机制成球团，球团进入回转窑生成含锌烟气；含锌烟气和高温烟气汇合后进入分解炉，再进入旋风预热器I‑2，经回收热量再经布袋收尘器大室回收得到次氧化锌；三次风进入旋风预热器V，给生料预热后进入布袋收尘器小室，废气经风机引入烟囱排放。本发明解决了含锌固废和生活垃圾不能有效利用的问题，且可以在不改变原有水泥熟料生产线生产水泥熟料的基础上同时生产次氧化锌和锌焙砂。
The invention belongs to the technical field of solid waste recycling, and discloses a method for cooperatively treating household garbage and zinc-containing solid waste through a cement clinker production line, which comprises the following steps: cement raw materials enter a cyclone preheater I-1, are subjected to multi-stage preheating, then enter a decomposing furnace, and then enter a rotary kiln for clinker firing to obtain high-temperature flue gas and cement clinker; the household garbage, the zinc-containing solid materials and the auxiliary materials enter a pelletizer to be prepared into pellets, and the pellets enter a rotary kiln to generate zinc-containing flue gas; zinc-containing flue gas and high-temperature flue gas are converged and then enter a decomposing furnace and then enter a cyclone preheater I-2, heat is recycled, and secondary zinc oxide is obtained through recycling in a large chamber of a bag collector; tertiary air enters a cyclone preheater V, raw materials are preheated and then enter a small chamber of a bag collector, and waste gas is introduced into a chimney through a fan to be discharged. According to the method, the problem that the zinc-containing solid waste and the household garbage cannot be effectively utilized is solved, and the zinc hypoxide and the zinc calcine can be simultaneously produced on the basis of not changing the original cement clinker production line for producing the cement clinker.
本发明属于固体废弃物回收利用技术领域，公开了一种水泥熟料生产线协同处理生活垃圾和含锌固废的方法，包括以下步骤：水泥生料进入旋风预热器I‑1经多级预热后进入分解炉，之后进入回转窑进行熟料烧成，得到高温烟气和水泥熟料；生活垃圾、含锌固料和辅料进入造球机制成球团，球团进入回转窑生成含锌烟气；含锌烟气和高温烟气汇合后进入分解炉，再进入旋风预热器I‑2，经回收热量再经布袋收尘器大室回收得到次氧化锌；三次风进入旋风预热器V，给生料预热后进入布袋收尘器小室，废气经风机引入烟囱排放。本发明解决了含锌固废和生活垃圾不能有效利用的问题，且可以在不改变原有水泥熟料生产线生产水泥熟料的基础上同时生产次氧化锌和锌焙砂。
Method and device for cooperatively treating household garbage and zinc-containing solid waste on dry-process cement clinker production line
干法水泥熟料生产线协同处理生活垃圾和含锌固废的方法与装置
LI DAOBIN (author)
2024-03-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
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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