A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-carbon environment-friendly coal gangue suspension calcination method and process system
The invention belongs to the technical field of coal gangue production, and particularly relates to a low-carbon environment-friendly coal gangue suspension calcination method and process system.The low-carbon environment-friendly coal gangue suspension calcination method comprises the following steps that firstly, coal gangue is subjected to suspension calcination, a multi-layer-distributed porous medium combustor is adopted in a calcining furnace, medium-low-heat-value gas fuel is combusted, and the coal gangue is obtained; 180-220 DEG C hot air which is discharged from the second cooling system and passes through a dust collector B is used as primary combustion-supporting air; the retention time of the gas in the calcining furnace system is less than 7 seconds, the O2 content in the flue gas at the outlet of the calcining furnace is controlled to be less than 2.0%, and the CO content is 3,000-8,000 ppm. According to the low-carbon and environment-friendly coal gangue suspension calcination method and process system, a multi-layer distributed porous medium combustor is adopted in a calcination furnace, low-heating-value gas can be combusted, and the problems that combustion in the calcination furnace is unstable, and temperature distribution is uneven are solved.
本发明属于煤矸石生产技术领域，尤其涉及一种低碳环保煤矸石悬浮煅烧方法及工艺系统，所述低碳环保煤矸石悬浮煅烧方法包括以下步骤：步骤一：将煤矸石悬浮煅烧，煅烧炉采用多层分布的多孔介质燃烧器，燃烧中低热值气体燃料，采用第二冷却系统出来经过收尘器B的180‑220℃的热风当一次助燃风；煅烧炉系统内气体停留时间小于7s，控制煅烧炉出口烟气中O2含量小于2.0％，CO含量为3000‑8000ppm。本发明提供一种低碳环保的煤矸石悬浮煅烧方法及工艺系统，煅烧炉采用多层分布的多孔介质燃烧器，可以燃烧低热值气体，解决煅烧炉内燃烧不稳定，温度分布不均难题。
Low-carbon environment-friendly coal gangue suspension calcination method and process system
The invention belongs to the technical field of coal gangue production, and particularly relates to a low-carbon environment-friendly coal gangue suspension calcination method and process system.The low-carbon environment-friendly coal gangue suspension calcination method comprises the following steps that firstly, coal gangue is subjected to suspension calcination, a multi-layer-distributed porous medium combustor is adopted in a calcining furnace, medium-low-heat-value gas fuel is combusted, and the coal gangue is obtained; 180-220 DEG C hot air which is discharged from the second cooling system and passes through a dust collector B is used as primary combustion-supporting air; the retention time of the gas in the calcining furnace system is less than 7 seconds, the O2 content in the flue gas at the outlet of the calcining furnace is controlled to be less than 2.0%, and the CO content is 3,000-8,000 ppm. According to the low-carbon and environment-friendly coal gangue suspension calcination method and process system, a multi-layer distributed porous medium combustor is adopted in a calcination furnace, low-heating-value gas can be combusted, and the problems that combustion in the calcination furnace is unstable, and temperature distribution is uneven are solved.
本发明属于煤矸石生产技术领域，尤其涉及一种低碳环保煤矸石悬浮煅烧方法及工艺系统，所述低碳环保煤矸石悬浮煅烧方法包括以下步骤：步骤一：将煤矸石悬浮煅烧，煅烧炉采用多层分布的多孔介质燃烧器，燃烧中低热值气体燃料，采用第二冷却系统出来经过收尘器B的180‑220℃的热风当一次助燃风；煅烧炉系统内气体停留时间小于7s，控制煅烧炉出口烟气中O2含量小于2.0％，CO含量为3000‑8000ppm。本发明提供一种低碳环保的煤矸石悬浮煅烧方法及工艺系统，煅烧炉采用多层分布的多孔介质燃烧器，可以燃烧低热值气体，解决煅烧炉内燃烧不稳定，温度分布不均难题。
Low-carbon environment-friendly coal gangue suspension calcination method and process system
一种低碳环保煤矸石悬浮煅烧方法及工艺系统
WU XIAOPING (author) / PENG XUEPING (author) / DAI ZHONGYUAN (author) / CHEN CHANGHUA (author) / LIN MINYAN (author) / WAN FUWEI (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F23G
Einäscherungsöfen
,
CREMATION FURNACES
/
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
Coal gangue calcination method for cement activity enhancer
| European Patent Office | 2023
Preparation process of lightweight environment-friendly coal gangue hollow brick
| European Patent Office | 2024
Preparation method of environment-friendly autoclaved coal gangue brick
| European Patent Office | 2021