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A platform for research: civil engineering, architecture and urbanism
High-quality lime production device and process capable of completely recovering CO2
The invention discloses a high-quality lime production device capable of completely recovering CO2. The device comprises a lime kiln, the lime kiln comprises a preheating chamber, a calcining chamber and a cooling chamber which are sequentially arranged from top to bottom; the preheating chamber and the cooling chamber are arranged on the vertical axis of the lime kiln, a central air duct is arranged between the preheating chamber and the cooling chamber, and the calcining chamber is arranged around the central air duct; a feed opening of the preheating chamber is connected with the calcining chamber, and a feed opening of the calcining chamber is connected with the cooling chamber; a feeding hole and a waste gas outlet are formed in the preheating chamber; a discharge port and a cooling air inlet are formed in the cooling chamber; a flue gas inlet and a flue gas outlet are formed in the calcining chamber. The preheating chamber and the cooling chamber are arranged on the same axis, and the calcining chamber is arranged around the central air duct between the preheating chamber and the cooling chamber, so that preheating-cooling air flow is separated from CO2 gas generated in the calcining process, dilution of CO2 by impurity components such as O2 and N2 in cooling air is avoided, and high-purity CO2 gas is obtained while lime is produced.
一种CO2全回收的高质量石灰生产装置，该装置包括石灰窑；所述石灰窑包括自上而下依次设置的预热膛、煅烧膛、冷却膛；所述预热膛与冷却膛布置在石灰窑的竖直轴线上，且预热膛与冷却膛之间设有中心风道，煅烧膛则围绕中心风道设置；预热膛的下料口与煅烧膛连接，煅烧膛的下料口与冷却膛连接；所述预热膛上设有进料口和废气出口；所述冷却膛上设有排料口和冷却风入口；所述煅烧膛上设有烟气入口和烟气出口。本发明将预热膛与冷却膛布置在同一轴线上，煅烧膛围绕预热膛与冷却膛之间的中心风道设置，从而将预热‑冷却的风流与煅烧过程产生的CO2气体相互分离，避免了冷却风中O2和N2等杂质成分对CO2的稀释，在生产石灰的同时，获得高纯度CO2气体。
High-quality lime production device and process capable of completely recovering CO2
The invention discloses a high-quality lime production device capable of completely recovering CO2. The device comprises a lime kiln, the lime kiln comprises a preheating chamber, a calcining chamber and a cooling chamber which are sequentially arranged from top to bottom; the preheating chamber and the cooling chamber are arranged on the vertical axis of the lime kiln, a central air duct is arranged between the preheating chamber and the cooling chamber, and the calcining chamber is arranged around the central air duct; a feed opening of the preheating chamber is connected with the calcining chamber, and a feed opening of the calcining chamber is connected with the cooling chamber; a feeding hole and a waste gas outlet are formed in the preheating chamber; a discharge port and a cooling air inlet are formed in the cooling chamber; a flue gas inlet and a flue gas outlet are formed in the calcining chamber. The preheating chamber and the cooling chamber are arranged on the same axis, and the calcining chamber is arranged around the central air duct between the preheating chamber and the cooling chamber, so that preheating-cooling air flow is separated from CO2 gas generated in the calcining process, dilution of CO2 by impurity components such as O2 and N2 in cooling air is avoided, and high-purity CO2 gas is obtained while lime is produced.
一种CO2全回收的高质量石灰生产装置，该装置包括石灰窑；所述石灰窑包括自上而下依次设置的预热膛、煅烧膛、冷却膛；所述预热膛与冷却膛布置在石灰窑的竖直轴线上，且预热膛与冷却膛之间设有中心风道，煅烧膛则围绕中心风道设置；预热膛的下料口与煅烧膛连接，煅烧膛的下料口与冷却膛连接；所述预热膛上设有进料口和废气出口；所述冷却膛上设有排料口和冷却风入口；所述煅烧膛上设有烟气入口和烟气出口。本发明将预热膛与冷却膛布置在同一轴线上，煅烧膛围绕预热膛与冷却膛之间的中心风道设置，从而将预热‑冷却的风流与煅烧过程产生的CO2气体相互分离，避免了冷却风中O2和N2等杂质成分对CO2的稀释，在生产石灰的同时，获得高纯度CO2气体。
High-quality lime production device and process capable of completely recovering CO2
一种CO2全回收的高质量石灰生产装置及工艺
LIU QIAN (author) / ZHOU QIANGANG (author) / ZHOU HAOYU (author) / CHEN SIMO (author)
2023-09-19
Patent
Electronic Resource
Chinese
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