Integrated briquette coal conveying, cooling and curing process and device
An integrated, briquette technology, applied in the direction of solid fuel, petroleum industry, fuel, etc., can solve the problems of low cooling efficiency and spontaneous combustion of briquette, achieve high cooling efficiency, improve oxidation resistance, and reduce oxidation performance.
Inactive Publication Date: 2014-09-10
SHANGHAI QIAOXU MACHINERY ENG
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Problems solved by technology
[0005] In view of the above problems, the present invention provides an integrated device for transporting, cooling and solidifying coal briquettes to solve the problems of low cooling efficiency and easy spontaneous combustion of briquettes in the prior art
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[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0026] see figure 1 , an integrated cooling and solidification device for conveying molded coal, including a conveying system 100 for conveying molded coal. The conveying system is sequentially provided with a high-speed wind blowing section 200, a sprayed water section 300 and a solidifying air cooling section along the conveying direction 400. The high-speed air-blowing section is equipped with a high-speed air-blowing device, which blows the briquettes at high speed, blows away the fine powder that is easy to oxidize and dust on the surface of the briquettes, and sends them to the dust removal device. The sprayed water section is equipped with a sprayed water device for spraying water on the surface of the briquette, so that it can be rap...
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The invention discloses an integrated briquette coal conveying, cooling and curing process and device. By using the process and device disclosed by the invention, the temperature of a hot briquetting coal of lignite can be reduced, meanwhile, fine powder attached on the surface of the briquette coal is reduced, and the surface oxidizability of the briquette coal is lowered, thus the breakage rate in the briquette coal cooling process is reduced, the ball forming rate of the briquette coal is increased, the oxidizability of the briquette coal is improved, and the spontaneous combustion phenomenon is reduced. Compared with the prior art, the integrated briquette coal conveying, cooling and curing process and device have the characteristics of small floor area and high cooling efficiency; and by using the integrated briquette coal conveying, cooling and curing process and device, the dust flying condition in the conveying process can be effectively reduced, the surface of the briquette coal is solidified, and the spontaneous combustion probability caused during accumulation is reduced.
Description
technical field [0001] The invention relates to the field of cooling and conveying of solid materials, in particular to a device for conveying, cooling and solidifying molded coal after lignite is hot-pressed. Background technique [0002] Lignite upgrading technology is a new direction of energy development today. The upgraded lignite is generally hot-pressed to increase its energy density, reduce spontaneous combustion, reduce dust pollution, increase the transportation radius, and increase the scope of application. Before the hot-pressed briquettes are completely cooled, their compressive strength and drop strength are very low, but after the briquettes are completely cooled, their compressive strength and drop strength can be greatly improved. Through a large number of experiments, it can be found that the briquettes formed by hot pressing have the following problems in the hot state: [0003] 1. Lignite itself has a low ignition point, high volatile content, and is eas...
Claims
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IPC IPC(8): C10L5/30
Inventor 郑志斌王会锋任浩
Owner SHANGHAI QIAOXU MACHINERY ENG