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Double-hearth shaft kiln with auxiliary nozzles and working method of double-hearth shaft kiln
The invention relates to a double-hearth shaft kiln with auxiliary nozzles and a working method of the double-hearth shaft kiln. The auxiliary nozzles in the double-hearth shaft kiln comprise bottom nozzles and channel nozzles. The two bottom nozzles are installed on supporting seats arranged in the centers of the bottoms of the two kiln chambers respectively, and spraying openings of the bottom nozzles extend to the bottom of the roasting zone. The multiple channel nozzles are installed on the top and the side portion of the center position of the connecting channel respectively. The working mode that a traditional double-hearth shaft kiln carries out full parallel flow roasting in a roasting kiln hearth and carries out countercurrent heat storage in a heat storage kiln hearth, namely the working mode of'full parallel flow roasting and countercurrent heat storage 'is changed into the working mode that parallel flow roasting is carried out in the roasting kiln hearth and countercurrent roasting and heat storage are carried out in the heat storage kiln hearth. The two-way roasting working mode of parallel-flow roasting, counter-flow roasting and heat storage is adopted, cooling air participates in combustion supporting, then a low-temperature airflow area where roasting belt materials of a heat storage kiln chamber are cooled is eliminated from the source, and the productivity and the product quality are improved.
本发明涉及一种带辅助喷嘴的双膛竖窑及其工作方法，双膛竖窑中的辅助喷嘴包括底部喷嘴和通道喷嘴；底部喷嘴为2个，分别安装在设于2个窑膛底部中心处的支撑座上，底部喷嘴的喷出口延伸至焙烧带底部；通道喷嘴为多个，分别安装在连接通道中心位置的顶部和侧部。本发明将传统双膛竖窑在焙烧窑膛内进行全并流焙烧、在蓄热窑膛进行逆流蓄热的工作方式，即“全并流焙烧+逆流蓄热”的工作方式，改变为在焙烧窑膛内进行并流焙烧、在蓄热窑膛进行逆流焙烧及蓄热的工作方式，即“并流焙烧+逆流焙烧及蓄热”的双向焙烧工作方式，让冷却空气参与助燃，进而从根源上消除蓄热窑膛的焙热带物料被冷却的低温气流区域，提高了产能和产品质量。
Double-hearth shaft kiln with auxiliary nozzles and working method of double-hearth shaft kiln
The invention relates to a double-hearth shaft kiln with auxiliary nozzles and a working method of the double-hearth shaft kiln. The auxiliary nozzles in the double-hearth shaft kiln comprise bottom nozzles and channel nozzles. The two bottom nozzles are installed on supporting seats arranged in the centers of the bottoms of the two kiln chambers respectively, and spraying openings of the bottom nozzles extend to the bottom of the roasting zone. The multiple channel nozzles are installed on the top and the side portion of the center position of the connecting channel respectively. The working mode that a traditional double-hearth shaft kiln carries out full parallel flow roasting in a roasting kiln hearth and carries out countercurrent heat storage in a heat storage kiln hearth, namely the working mode of'full parallel flow roasting and countercurrent heat storage 'is changed into the working mode that parallel flow roasting is carried out in the roasting kiln hearth and countercurrent roasting and heat storage are carried out in the heat storage kiln hearth. The two-way roasting working mode of parallel-flow roasting, counter-flow roasting and heat storage is adopted, cooling air participates in combustion supporting, then a low-temperature airflow area where roasting belt materials of a heat storage kiln chamber are cooled is eliminated from the source, and the productivity and the product quality are improved.
本发明涉及一种带辅助喷嘴的双膛竖窑及其工作方法，双膛竖窑中的辅助喷嘴包括底部喷嘴和通道喷嘴；底部喷嘴为2个，分别安装在设于2个窑膛底部中心处的支撑座上，底部喷嘴的喷出口延伸至焙烧带底部；通道喷嘴为多个，分别安装在连接通道中心位置的顶部和侧部。本发明将传统双膛竖窑在焙烧窑膛内进行全并流焙烧、在蓄热窑膛进行逆流蓄热的工作方式，即“全并流焙烧+逆流蓄热”的工作方式，改变为在焙烧窑膛内进行并流焙烧、在蓄热窑膛进行逆流焙烧及蓄热的工作方式，即“并流焙烧+逆流焙烧及蓄热”的双向焙烧工作方式，让冷却空气参与助燃，进而从根源上消除蓄热窑膛的焙热带物料被冷却的低温气流区域，提高了产能和产品质量。
Double-hearth shaft kiln with auxiliary nozzles and working method of double-hearth shaft kiln
一种带辅助喷嘴的双膛竖窑及其工作方法
ZHAO XIN (author) / WANG CHEN (author) / ZHAO BAOHAI (author) / PAN ZHONGWEI (author) / WU ZHANDE (author) / BAI CHENG (author)
2024-08-02
Patent
Electronic Resource
Chinese
IPC:
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
C04B
Kalk
,
LIME
/
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
Double-hearth lime shaft kiln ignition device and method
| European Patent Office | 2020