A fine powder suspension roasting device and roasting method thereof
A suspension roasting and fine powder technology, applied in combustion methods, furnaces, indirect carbon dioxide emission reduction, etc., can solve the problems of insufficient fine powder roasting, and achieve the effects of high production efficiency, investment saving, and wide adaptability.
Active Publication Date: 2019-08-30
HUNAN UNIV OF SCI & TECH
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Problems solved by technology
This application is mainly aimed at the roasting of fine powders, and invented a semi-continuous suspension roasting equipment and method, which aims to overcome the shortcomings of insufficient roasting of fine powders in circulating fluidized beds, and also improve the yield of finished products compared with the above patents
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] The technical problem to be solved by the present invention is to provide a fine powder suspension roasting device and its roasting method with high roasting quality, high production efficiency, energy saving and consumption reduction, aiming at the above technical status.
[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail belo...
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The invention discloses a fine powder suspension roasting device and a roasting method thereof. The roasting device comprises a raw material preheating part and a pressurizing roasting part. The air inflow end of a raw material dryer of the raw material preheating part is connected with a hot air outlet of a cyclone preheater, the discharge end of the raw material dryer is connected with the feedend of a raw material cyclone separator, and the discharge end of the raw material cyclone separator is connected with the feed end of the cyclone preheater. The discharge end of a roasting chamber ofthe pressurizing roasting part is connected with the feed end of a finished product cyclone separator, the discharge end of the finished product cyclone separator is connected with the feed end of acyclone cooler, the discharge end of the cyclone cooler is connected with the feed end of a finished product bin, and a high-temperature waste gas outlet of the finished product cyclone separator is connected with a hot air inlet of the cyclone preheater. The device is simple in structure, semicontinuous production can be achieved, the roasting quality is guaranteed, high-quality roasted powder isobtained, the roasting atmosphere, the roasting temperature and the roasting time can be flexibly adjusted, and therefore the device has high adaptability to roasting of fine powder of various different varieties.
Description
technical field [0001] The invention relates to the technical fields of powder material preparation and chemical industry, in particular to a fine powder suspension roasting device and a roasting method thereof. Background technique [0002] The roasting of powder is an industrial technology widely used in mineral processing, metallurgy, materials and chemical industry. The corresponding roasting equipment includes traditional downdraft kiln, edge kiln, tunnel kiln, shaft kiln, and relatively modern rotary kiln and fluidized fluidized furnace. , Circulating fluidized bed roaster, etc. Traditional roasting equipment has low production efficiency, low degree of automation, high labor intensity, and complicated operation; the investment in fixed assets of rotary kiln is large, and fluidized bed furnace and circulating fluidized bed roasting furnace are mainly for powders whose particle size distribution is mainly in the millimeter level or even coarser. , the roasting of micro...
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IPC IPC(8): F27B17/00F23L15/00
CPCF23L15/00F27B17/00Y02E20/34
Inventor 彭美勋马洪超肖秋国张欣宋飞谢春霖曾令平王成陈欣慧李培
Owner HUNAN UNIV OF SCI & TECH