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A superheated steam drying system and process

A technology of superheated steam and drying process, which is applied in the directions of heating to dry solid materials, drying solid materials, and drying gas arrangement, etc. It can solve the problems of rarely used production and high technical threshold, and achieve fast drying speed and large heat transfer coefficient , Remarkable energy-saving effect

Inactive Publication Date: 2019-08-02
吴宏 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In China, due to the high technical threshold, there are very few applied productions

Method used

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  • A superheated steam drying system and process

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] figure 1 Show the superheated steam drying system process flow chart of the present invention, refer to figure 1 As shown, the system workflow is as follows:

[0013] 1) Send the material to be dried into the drying chamber through a belt drive or other transmission mechanism, and then start the system. During the system start-up process, no more materials to be dried will be added. After the system is started, the feeding system will work again and the materials to be dried will be continuously fed into the system;

[0014] 2) When the system is started, the heater (5) heats the air, and the hot air is driven by the circulation fan (4), at this time the hot air becomes a closed cycle in the system. During the drying process, the moisture in the material quickly evaporates into the hot air, and most of the air in the system is replaced by steam. At ...

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Abstract

The invention discloses a superheated-steam drying system and process applicable to fields of industrial sludge treatment, chemical industry, medicament, wood, food, agriculture and sideline products and the like. The superheated-steam drying system comprises a steam compressor, a condensing heat exchanger, a circulating fan, a drying chamber, a cyclone separator and the like. During the drying process, superheated steam discharged from the drying chamber is divided into two channels, one channel of the superheated steam flows through the steam compressor to increase temperature and pressure, is condensed in the condensing heat exchanger to discharge latent heat, and in the meantime exchanges heat with steam of the other channel directly entering the condensing heat exchanger, the temperature and superheat degree of uncompressed steam further rise after the uncompressed steam absorbs the heat, and the superheated steam is then led into the drying chamber to have materials dried, so that closed circulation of the superheated steam and recycling of energy are formed. The superheated-steam drying system is remarkable in energy-saving effect, good in drying quality of products, free of live steam for drying, environment friendly, odorless, oxygen-free, free of explosion hazards, save and reliable.

Description

technical field [0001] The invention relates to a superheated steam drying system and process applied to the drying fields of industrial sludge treatment, chemical industry, medicine, wood, food and agricultural and sideline products. Background technique [0002] Drying refers to the process of removing moisture from materials under artificial control or natural conditions. In the process of product processing, drying is a very important link, and has been widely used in the fields of industrial sludge treatment, chemical industry, medicine, wood, food and agricultural by-products. At the same time, the study found that the proportion of drying energy consumption to the total energy consumption is increasing year by year, 14% of industrial energy consumption in developed countries is used for drying, while my country's technology in this area is even more backward, and the unit energy consumption in the field of drying Even higher, the drying energy consumption of some indu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B3/00F26B21/02
CPCY02P20/10Y02P60/85
Inventor 吴宏李育隆
Owner 吴宏
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