Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Disposal method and device for rapid combustion decarburization of coal gangue
The invention relates to the field of resource treatment of bulk industrial solid waste (coal gangue), provides a treatment method and device for rapid combustion and decarburization of coal gangue, and aims to solve the problem of deflagration caused by rapid precipitation of volatile components in the coal gangue combustion process and the problem of poor decarburization effect caused by incomplete combustion of fixed carbon in the coal gangue. According to the main scheme, the method comprises the steps that raw materials are prepared into particles, the particles are dried and preheated through a belt dryer and then enter a pyrolysis device to be subjected to low-temperature dry distillation treatment, part of volatile component gas is separated out, and pyrolyzed coal gangue particles are obtained. Then, the particles enter a belt type sintering machine tunnel kiln through a middle stock bin to be subjected to self-roasting treatment, then decarburization combustion treatment is conducted, and coal gangue particles obtained after decarburization combustion are obtained, namely, the water-retaining ceramsite is obtained. If high-strength ceramsite or gravel needs to be produced, coal gangue particles subjected to decarburization combustion need to be subjected to deep combustion decarburization and surface high-temperature vitrification treatment through a rotary kiln.
本发明涉及大宗工业固废（煤矸石）资源化处置领域，提供了一种煤矸石快速燃烧脱碳的处置方法及装置，旨在解决煤矸石燃烧过程中挥发分快速析出导致的爆燃问题，以及煤矸石中固定碳燃烧不完全导致的脱碳效果差的问题。主要方案包括将原料制备成颗粒，然后经过带式干燥机干燥和预热处理后，进入热解装置进行低温干馏处理，分离出部分挥发分气体，得到热解后的煤矸石颗粒。接着，这些颗粒通过中间料仓进入带式烧结机隧道窑自焙烧处理，然后进行脱碳燃烧处理，得到脱碳燃烧后的煤矸石颗粒，即保水陶粒。若需要生产高强陶粒或砾石，则需要对脱碳燃烧后的煤矸石颗粒通过回转窑进行深度燃烧脱碳和表面高温玻化处理。
Disposal method and device for rapid combustion decarburization of coal gangue
The invention relates to the field of resource treatment of bulk industrial solid waste (coal gangue), provides a treatment method and device for rapid combustion and decarburization of coal gangue, and aims to solve the problem of deflagration caused by rapid precipitation of volatile components in the coal gangue combustion process and the problem of poor decarburization effect caused by incomplete combustion of fixed carbon in the coal gangue. According to the main scheme, the method comprises the steps that raw materials are prepared into particles, the particles are dried and preheated through a belt dryer and then enter a pyrolysis device to be subjected to low-temperature dry distillation treatment, part of volatile component gas is separated out, and pyrolyzed coal gangue particles are obtained. Then, the particles enter a belt type sintering machine tunnel kiln through a middle stock bin to be subjected to self-roasting treatment, then decarburization combustion treatment is conducted, and coal gangue particles obtained after decarburization combustion are obtained, namely, the water-retaining ceramsite is obtained. If high-strength ceramsite or gravel needs to be produced, coal gangue particles subjected to decarburization combustion need to be subjected to deep combustion decarburization and surface high-temperature vitrification treatment through a rotary kiln.
本发明涉及大宗工业固废（煤矸石）资源化处置领域，提供了一种煤矸石快速燃烧脱碳的处置方法及装置，旨在解决煤矸石燃烧过程中挥发分快速析出导致的爆燃问题，以及煤矸石中固定碳燃烧不完全导致的脱碳效果差的问题。主要方案包括将原料制备成颗粒，然后经过带式干燥机干燥和预热处理后，进入热解装置进行低温干馏处理，分离出部分挥发分气体，得到热解后的煤矸石颗粒。接着，这些颗粒通过中间料仓进入带式烧结机隧道窑自焙烧处理，然后进行脱碳燃烧处理，得到脱碳燃烧后的煤矸石颗粒，即保水陶粒。若需要生产高强陶粒或砾石，则需要对脱碳燃烧后的煤矸石颗粒通过回转窑进行深度燃烧脱碳和表面高温玻化处理。
Disposal method and device for rapid combustion decarburization of coal gangue
一种煤矸石快速燃烧脱碳的处置方法及装置
WANG WENJUN (Autor:in)
01.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B01D
SEPARATION
,
Trennen
/
F22B
Verfahren der Dampferzeugung
,
METHODS OF STEAM GENERATION
/
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
Decarburization equipment and decarburization process for coal gangue
| Europäisches Patentamt | 2024