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Drum drying method

A drum drying and vacuum drying technology, which is used in the drying of solid materials, non-progressive dryers, heating to dry solid materials, etc., to shorten the drying cycle, enhance the flow, and strengthen the convective heat transfer process.

Inactive Publication Date: 2006-11-15
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings in the prior art methods, and propose a slurry drying method with high efficiency, energy saving and guaranteed drying quality, so as to solve the drying problem of heat-sensitive slurry. Energy consumption and operating costs during the drying process

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Embodiment 1

[0019] Embodiment 1: a kind of operating system that realizes the method of the present invention, mainly comprises the condenser 29 of the heat pump system in the drum 28, the liquid storage tank 10, the dry filter 9, the expansion valve 8, the water vapor condenser 5 and the vacuum system cooling A heat pump circulation subsystem composed of evaporators formed by water heat exchangers 21 connected in series; a vacuum pumping subsystem composed of a vacuum drying chamber 26, a water vapor condenser 5, a buffer tank 3, and a vacuum unit 1; the cooling water of the vacuum system The cooling water circulation subsystem composed of heat exchanger 21, water pump 20, vacuum unit cooling water return pipeline 14, vacuum unit 1, etc.; the drum rotation subsystem composed of deceleration system 24 and drum rolling gear system 12; the heat pump in the drum The system consists of condenser 29, drum 28, oil fins 32 inside the drum, heat pump system working fluid connection pipes 33, 34, c...

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Abstract

The present invention relates to a method for implementing drum drying process by adopting organic combination of closed circulation heat pump technology, vacuum drying technology and drum drying technology. Said invention includes seven processes of vacuum drying, drum drying, drum rotation, heat pump circulation, vacuum evacuation, cooling water circulation and central control. Said invention can be used for drying thermal-sensitive slurry material.

Description

Technical field: [0001] The invention relates to a drum drying method, in particular to a drum drying method which uses closed heat pump circulation technology and vacuum drying technology to achieve high efficiency and energy saving, and is suitable for traditional Chinese medicine slurry, chemical industry, pharmaceutical, agricultural product processing, seafood processing, food processing Drying process of heat-sensitive slurry in other industries. technical background: [0002] At present, with the rapid development of biopharmaceutical and chemical industries, there are many occasions where drying is characteristically required, and the existing technologies have various shortcomings in various degrees. Due to the extensiveness and importance of the drying process, people have invented a variety of drying equipment and methods, such as fluidized bed dryers, tube bundle dryers, blade dryers, spin flash dryers, moving bed dryers, tunnel dryers, etc. Dryer, vacuum dryer,...

Claims

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Application Information

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IPC IPC(8): F26B11/02F26B3/20F26B5/04F26B7/00
Inventor 田小亮孙晖
Owner QINGDAO UNIV
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