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Drum drying method

A drum drying and vacuum drying technology, applied in the direction of drying solid materials, non-progressive dryers, heating to dry solid materials, etc., to reduce energy consumption, increase convective heat transfer area, and ensure drying quality.

Inactive Publication Date: 2010-05-12
QINGDAO UNIV
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  • Summary
  • 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

Method used

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Embodiment 1

[0019] Example 1: An operating system for implementing the method of the present invention, which mainly includes the condenser 29 of the heat pump system in the drum 28, the liquid storage tank 10, the filter drier 9, the expansion valve 8, the steam condenser 5 and the vacuum system cooling The heat pump cycle subsystem composed of the evaporator formed by the water heat exchanger 21 in series; the vacuum exhaust subsystem composed of the vacuum drying chamber 26, the steam condenser 5, the buffer tank 3, and the vacuum unit 1; and the vacuum system cooling water The cooling water circulation subsystem composed of heat exchanger 21, water pump 20, vacuum unit cooling water return line 14, vacuum unit 1, etc.; drum rotation subsystem composed of deceleration system 24 and drum rolling gear system 12; heat pump in the barrel The system consists of the condenser 29, the drum 28, the oil fins 32 in the drum, the working medium connecting pipes 33 and 34 of the heat pump system, th...

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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 that uses closed heat pump circulation technology and vacuum drying technology to achieve high efficiency and energy saving, and is suitable for Chinese medicine slurry, chemical industry, pharmacy, agricultural product processing, seafood processing, and food processing The drying process of heat-sensitive slurry in other industries. technical background: [0002] At present, with the rapid development of the biopharmaceutical and chemical industries, there are a lot of occasions that require dryness, and the existing technologies have various disadvantages. 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, paddle dryers, spin flash dryers, moving bed dryers, tunnels Dryers, vacuum dryers, etc., each type of drying equipment has its specific rang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B11/02F26B7/00F26B5/04F26B3/20
Inventor 田小亮孙晖
Owner QINGDAO UNIV
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