Coal slime drying system and method using electric power plant low-grade steam and solar energy

A low-grade steam and drying system technology, applied in the field of coal slime drying system, can solve the problems of low efficiency of hot blast furnace, uneven drying, uneconomical operation, etc., and achieve good environmental coordination, low operation and maintenance costs, and short drying cycle Effect

Active Publication Date: 2015-05-27
CEEC JIANGSU ELECTRIC POWER DESIGN INST
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Problems solved by technology

However, the efficiency of this method is extremely low, the coal consumption is high, the drying is uneven, and the operation is extremely uneconomical.

Method used

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  • Coal slime drying system and method using electric power plant low-grade steam and solar energy
  • Coal slime drying system and method using electric power plant low-grade steam and solar energy
  • Coal slime drying system and method using electric power plant low-grade steam and solar energy

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0024] The present invention proposes a coal slime drying system utilizing low-grade steam and solar energy in power plants, such as figure 1 Shown is the schematic diagram of the first embodiment of the present invention, and the present invention comprises the wet coal slime conveying equipment 1 that is used to transport the wet coal slime to be dried, is used to provide the solar greenhouse 2 of coal slime drying and solar irradiation, uses Coal slime turning machine for spreading, turning, transporting and cutting fine coal slime particles. 3. Dried coal slime conveying equipment for transporting dried coal slime. 4. Used to provide low High-grade steam power plant thermal system 5, floor ...

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Abstract

The invention discloses a coal slime drying system using electric power plant low-grade steam and solar energy. The system comprises coal slime conveying equipment used for conveying to-be-dried wet coal slime, a solar greenhouse used for providing coal slime drying and solar irradiation, a coal slime turning machine used for paving, turning throw, conveying and cutting the coal slime into fine coal slime particles, dried coal slime conveying equipment used for conveying dried coal slime, an electric power plant thermodynamic system used for proving low-grade steam, and a floor heating device used for absorbing the heat energy of the low-grade steam to supply heat energy required by coal slime drying. The invention also provides a coal slime drying method using electric power plant low-grade steam and solar energy. The method has the advantages of high system transparency, good environment coordination, stable and sate operation, low operation maintenance cost, energy source saving and the like.

Description

technical field [0001] The invention belongs to the technical field of energy saving and environmental protection, and in particular relates to a coal slime drying system and method utilizing low-grade steam and solar energy of a power plant. Background technique [0002] Coal slime is a semi-solid formed by pulverized coal containing water. It is a by-product in the coal production process. Generally, it still has a calorific value of 10-20MJ / kg, even exceeding some low calorific value steam coal. It is a valuable coal resource. However, coal slime has disadvantages such as high water holding capacity, high water content and high viscosity. It is difficult to stack, store and transport, and it is difficult to realize industrial application. As a result, it not only wastes valuable coal resources, but also causes serious environmental problems. pollute. [0003] Coal is the most used energy in our country. It is estimated that by 2015, the national coal slime output will re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B1/00F26B3/28F26B23/10F26B25/00
Inventor 范仁东王志斌赵铮周伟朵
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST
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