A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CO2 zero-emission production process and system for calcining cement by using solar energy and hydrogen energy
The invention discloses a CO2 zero-emission production process and system for calcining cement by using solar energy and hydrogen energy, and the specific process is as follows: the solar energy is reflected to a heat collection energy storage device through a mirror field, the heat collection energy storage device focuses and stores energy, the collected kiln tail waste gas containing high-concentration CO2 gas is heated to 900-1200 DEG C and is conveyed into a decomposition furnace, and the decomposition furnace is heated to 900-1200 DEG C; the limestone is decomposed into calcium oxide, and high-concentration CO2 waste gas generated by decomposition enters a preheater system to preheat the limestone and then returns to the heat collection energy storage device; when the solar energy is sufficiently stored, decomposed calcium oxide is divided into two paths, one part of calcium oxide and auxiliary materials are mixed and enter a rotary kiln to be calcined, fuel of the rotary kiln adopts hydrogen energy, and flue gas discharged out of the kiln is collected through a cyclone; a part of calcium oxide enters the storage tank. According to the invention, solar energy and hydrogen energy clean energy with low energy consumption, low pollution and low emission are used for replacing traditional energy, so that the whole firing system has the effects of energy conservation, consumption reduction and zero emission of CO2 greenhouse gas.
本发明公开了一种利用太阳能、氢能煅烧水泥的CO2零排放生产工艺及系统，具体工艺为太阳能通过镜场反射到集热储能器上，集热储能器聚焦并储存能量，将收集的含高浓度CO2气体的窑尾废气加热至900～1200℃，并输送到分解炉内，将石灰石分解为氧化钙，分解产生的高浓度CO2废气进入预热器系统预热石灰石后，再返回到集热储能器中；在太阳能储备充足时，分解后的氧化钙分为两路，一部分氧化钙与辅料进行配料进入回转窑进行煅烧，回转窑的燃料采用氢能，出窑的烟气通过旋风筒进行收集；一部分氧化钙进入储存库。本发明以低能耗、低污染、低排放的太阳能、氢能清洁能源替代传统能源，实现整个烧成系统节能降耗、CO2温室气体零排放效果。
CO2 zero-emission production process and system for calcining cement by using solar energy and hydrogen energy
The invention discloses a CO2 zero-emission production process and system for calcining cement by using solar energy and hydrogen energy, and the specific process is as follows: the solar energy is reflected to a heat collection energy storage device through a mirror field, the heat collection energy storage device focuses and stores energy, the collected kiln tail waste gas containing high-concentration CO2 gas is heated to 900-1200 DEG C and is conveyed into a decomposition furnace, and the decomposition furnace is heated to 900-1200 DEG C; the limestone is decomposed into calcium oxide, and high-concentration CO2 waste gas generated by decomposition enters a preheater system to preheat the limestone and then returns to the heat collection energy storage device; when the solar energy is sufficiently stored, decomposed calcium oxide is divided into two paths, one part of calcium oxide and auxiliary materials are mixed and enter a rotary kiln to be calcined, fuel of the rotary kiln adopts hydrogen energy, and flue gas discharged out of the kiln is collected through a cyclone; a part of calcium oxide enters the storage tank. According to the invention, solar energy and hydrogen energy clean energy with low energy consumption, low pollution and low emission are used for replacing traditional energy, so that the whole firing system has the effects of energy conservation, consumption reduction and zero emission of CO2 greenhouse gas.
本发明公开了一种利用太阳能、氢能煅烧水泥的CO2零排放生产工艺及系统，具体工艺为太阳能通过镜场反射到集热储能器上，集热储能器聚焦并储存能量，将收集的含高浓度CO2气体的窑尾废气加热至900～1200℃，并输送到分解炉内，将石灰石分解为氧化钙，分解产生的高浓度CO2废气进入预热器系统预热石灰石后，再返回到集热储能器中；在太阳能储备充足时，分解后的氧化钙分为两路，一部分氧化钙与辅料进行配料进入回转窑进行煅烧，回转窑的燃料采用氢能，出窑的烟气通过旋风筒进行收集；一部分氧化钙进入储存库。本发明以低能耗、低污染、低排放的太阳能、氢能清洁能源替代传统能源，实现整个烧成系统节能降耗、CO2温室气体零排放效果。
CO2 zero-emission production process and system for calcining cement by using solar energy and hydrogen energy
利用太阳能、氢能煅烧水泥的CO2零排放生产工艺及系统
WU XIAOPING (author) / MA JIAOMEI (author) / LI BO (author) / WANG WEI (author)
2022-03-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
F24S
Sonnenkollektoren
,
SOLAR HEAT COLLECTORS
/
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
CO2 zero-emission production process and system for calcining limestone by using solar energy
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