The utility model is a counter current tank calciner with a double preheating air channel, which includes a calciner, and the first preheating air channel is set in the calciner, which is set up with a first drawing board, which is characterized by a second preheating air channel, and the second preheating air channel in a calciner, between the fifth fire lane and the eighth fire path. The upper end of the second preheated air duct is connected with the fifth fire path, and the lower end is communicated with the first preheating air channel, and second pulling plates are arranged inside the cooling channel, and are connected with the furnace body. When calcined, the raw material is entered into the first fire path by the feed inlet, and the volatile matter into the eighth fire path begins to burn. The first preheating air channel is added to the eighth fire channel to supplement the air combustion. During the calcination process, the second pulls set in the second preheated air channel are opened, and the preheated air is preheated in the first preheated air passage. The second preheated air channel enters the fifth fire path to support combustion, so that the gas in the fifth flue can be fully burned and the temperature of fifth fire paths will be increased.
【技术实现步骤摘要】
具有双预热空气道的逆流罐式煅烧炉
本技术涉及煅烧设备,是具有双预热空气道的逆流罐式煅烧炉。
技术介绍
现有技术的逆流罐式煅烧炉包括炉体,炉体由煅烧罐和对应的加热火道组成,炉体内由上至下依次设置第一火道~第八火道3,在炉体的上方设置煅烧罐进料口、下方设置冷却水套9,第一火道对应的煅烧罐与进料口连通,第八火道对应的煅烧罐与冷却水套9连通,每一个煅烧罐的加热火道从第一火道到第八火道迂回连通,从而形成挥发分燃烧通道;在第一火道~第八火道3的侧面设置挥发分通道,挥发分通道的上端与第一火道连通、下端与第八火道3连通、中间与第五火道5连通,在挥发分通道与第五火道5之间设置燃烧盖板,在挥发分通道与第八火道3之间设置活动拉板;预热空气道2置于第八火道3与冷却水套9之间,预热空气道2的排气口与第八火道3连通、进气口与外界连通,预热空气道2的进气口设置进气盖板1,拉板6置于预热空气道2内并固连;在第五火道5的侧面设置火道盖板4,用于观察第五火道5的燃烧状态,见图1。煅烧使用的燃料主要靠原料中含有的挥发分进行燃烧。煅烧时,原料由进料口进入第一火道对应的煅烧罐,生产过程中原料逐步下移,其中的挥发分进入挥发分通道、然后进入第八火道3开始燃烧,挥发分逐渐向上依次进入第七火道~第一火道进行燃烧,也可以通过活动拉板关闭进入第八火道3的挥发分通道,通过燃烧盖板打开进入第五火道5的挥发分通道,使挥发分直接进入第五火道5燃烧。为使挥发分充分燃烧,可以通过预热空气道2向第八火道3补充空气助燃,外界空气通过预热空气道2进入第八火道3时,在预热空气道2内被预加热,能够防止外界空气直接进入第八火道3导致 ...
【技术保护点】
1.一种具有双预热空气道的逆流罐式煅烧炉,它包括煅烧炉,所述煅烧炉内设置第一预热空气道,第一预热空气道内设置第一拉板,其特征是:还包括第二预热空气道,所述第二预热空气道置于煅烧炉内、第五火道与第八火道之间的侧面,第二预热空气道上端与第五火道连通、下端与第一预热空气道连通,其内设置第二拉板、并与炉体固连。
【技术特征摘要】
1.一种具有双预热空气道的逆流罐式煅烧炉,它包括煅烧炉,所述煅烧炉内设置第一预热空气道,第一预热空气道内设置第一拉板,其特征是:还包括第二预热空气道,所述第二预热空气道置于煅烧炉内、第五火道与第八火道之间的侧面,第二预热空气道上端与第五火道连通、下端与第一预热空气道连通,其内设置第二拉板、并与炉体固连。2.如权利要求1所述的具有双预热空气道的逆流罐式煅烧炉,其特征是:所述煅烧炉的结构是:它包括炉体、保温墙,所述炉体内衬保温墙,炉体内由上至下依次设置第一火道~第八火道,在炉体的下方设置冷却水套,...
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