Tower-type coal drying and quality improving device
A coal drying and drying technology, which is applied in drying, drying machines, solid fuels, etc., can solve the problems of low heat exchange efficiency and uncontrollable heat exchange time, so as to facilitate storage, inhibit the precipitation of volatile matter, and ensure dehydration effect of effect
Active Publication Date: 2014-07-02
TSINGHUA UNIV
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Problems solved by technology
[0006] The purpose of the present invention is to overcome the above-mentioned technical shortcomings: low heat exchange efficiency, uncontrollable heat exchange time, etc., and thus provide a tower type coal drying and upgrading device with good drying effect, controllable drying time and simple system
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[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] figure 1 It is a schematic diagram of the structure principle of the first embodiment of the present invention. It can be seen from the figure that the drying device includes a drying tower shell 10, a drying mechanism arranged in the shell, and coal inlets 2 respectively arranged on the drying tower shell. , a coal outlet 6, an air intake chamber 3 and an exhaust chamber 7; the drying mechanism includes a first motor 1a, a first rotating shaft 11a, a plurality of drying discs 8 and a scraper 5 respectively arranged on each drying disc . The outside of the drying tower shell 10 is provided with an insulating layer 9 to ensure the temperature in the drying tower. The coal inlet 2 is located on the top of the drying tower shell; the air inlet chamber 3 is located below the coal inlet and on the upper part of the drying tower shell, and the inlet is provided with...
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The invention discloses a tower-type coal drying and quality improving device which comprises a drying tower shell, a drying mechanism as well as a coal inlet, a coal outlet, a gas intake chamber and a gas exhaust chamber, wherein the drying mechanism is arranged in the shell; the coal inlet, the coal outlet, the gas intake chamber and the gas exhaust chamber are respectively arranged on the shell of the drying tower; the drying mechanism comprises a rotary shaft, a plurality of drying round discs and a plurality of scrape plates respectively arranged on each drying round disc; the drying round discs consist of a plurality of fan blades which are arranged circumferentially at intervals; fan blades on the two adjacent drying round discs are staggered and arrayed; scraping plates are fixed on the rotary shaft, and rotate along with the rotary shaft; drying gas enters the drying tower from the gas intake chamber; coals are dried up on the drying round discs, and treated waste gas is exhausted from the gas exhaust chamber; and coals entering the drying chamber are scraped to the next layer of drying round disc by the scraping plates; and the steps are repeated in the way, so that coals dried completely are exhausted from the coal outlet in the bottom. The device can effectively control the drying time of to-be-dried coals, and has the advantages of good drying effect and simple and reliable system.
Description
technical field [0001] The invention relates to a coal drying and upgrading equipment, in particular to a tower type coal drying and upgrading device. Background technique [0002] Coal is a non-renewable energy source. Due to the gradual depletion of other energy sources such as oil, its price is getting more and more expensive, making coal mining more and more large, and high-quality coal energy is being exhausted. Due to low-quality coal storage Therefore, it is very necessary to rationally utilize low-quality coal. [0003] Low-quality coal has the characteristics of high volatile matter, high moisture, and low calorific value, which makes it easy to spontaneously ignite and decompose during storage, and if it is directly involved in combustion, it will lead to a decrease in flame temperature and a decrease in thermal efficiency. Moisture also consumes a certain amount of calories. For coal transportation, it is economically uneconomical to transport lignite with high ...
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IPC IPC(8): F26B17/30C10L9/08
Inventor 丁艳军孙忠杰代维敏董建勋张守玉
Owner TSINGHUA UNIV