Lithium bromide-based low-temperature medicinal material drying device

A drying device, lithium bromide technology, applied in heating devices, drying, dryers and other directions, can solve the problems of inability to directly utilize process waste heat and aggravate environmental thermal pollution, achieve preservation of product phase and quality, reduce thermal pollution, accelerate Effects of the drying process

Active Publication Date: 2021-03-02
EAST CHINA JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the exhaust gas generated in the pharmaceutical process contains a large amount of process waste heat that cannot be directly used, and these waste heat is discharged into the atmosphere, causing environmental thermal pollution to intensify

Method used

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  • Lithium bromide-based low-temperature medicinal material drying device

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Embodiment Construction

[0025] The present invention will be further explained below in conjunction with accompanying drawing, it is necessary to point out here that the following specific embodiments are only used to further illustrate the present application, and should not be interpreted as limiting the protection scope of the present application. Application content Some non-essential improvements and adjustments are made to this application.

[0026] Such as figure 1 As shown, a lithium bromide-based low-temperature medicinal material drying device includes: lithium bromide solution circulation, refrigerant circulation and low-temperature drying air duct circulation.

[0027] The lithium bromide solution cycle includes a generator 1, a waste heat recovery device 2, a pressure reducing valve 3, an absorber 4, a first spray device 5, a generator pump 6 and a second spray device 7; wherein the generator 1 has Lithium bromide concentrated solution, the absorber 4 has a lithium bromide dilute soluti...

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Abstract

The invention discloses a lithium bromide-based low-temperature medicinal material drying device, and belongs to the technical field of low-temperature drying technology and waste heat utilization. The lithium bromide-based low-temperature medicinal material drying device mainly comprises lithium bromide solution circulation, refrigerant circulation and low-temperature drying air duct circulation.The lithium bromide solution circulation and the refrigerant circulation form a parallel loop, and a generator in the lithium bromide solution circulation is divided into two branches to complete thelithium bromide solution circulation and the refrigerant circulation; and the low-temperature drying air duct circulation is connected with the refrigerant circulation in parallel through an evaporator in the refrigerant circulation, and the evaporator cools and dehumidifies air. According to the medicinal material drying device, process waste heat is effectively used for performing lithium bromide absorption type refrigeration circulation, the moisture content of air flowing out of a drying box is reduced, and water is collected in the evaporator, meanwhile, frosting in the evaporator due tosupercooling of the water is prevented; and defrosting is performed by a hot water pipeline, so that the operation stability is improved.

Description

technical field [0001] The invention is a lithium bromide-based low-temperature medicinal material drying device, which belongs to the technical fields of low-temperature drying technology and waste heat utilization. Background technique [0002] In order to ensure the valuable ingredients in Chinese herbal medicines, it is necessary to strictly and accurately control the drying temperature during the medicinal process. At present, the commonly used drying methods on the market include hot air drying, vacuum freeze drying and low temperature drying. The hot air drying method uses hot air to transfer heat to the material, so that the water in the medicinal material evaporates and then diffuses into the air. This method is very simple. The dried medicinal material is in good condition, but the treated medicinal material lacks nutrients and cannot be dried. Give full play to its medicinal efficacy; the vacuum freeze-drying method is to directly sublimate the solid ice produced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B23/00F26B23/10F25B15/06F25B41/20F25B47/02
CPCF25B15/06F25B47/027F26B23/005F26B23/10Y02B30/62Y02P70/10Y02A30/27
Inventor 张娜李亮徐青周慕川王庆港谭思雯刘敏徐苑
Owner EAST CHINA JIAOTONG UNIVERSITY
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