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Heat pump-microwave-infrared combination alternate drying method for amomum tsao-ko

A heat pump drying and infrared technology, which is applied in the direction of heating to dry solid materials, promoting the preliminary treatment of solid material drying, biomass drying, etc., can solve the problems of low efficiency and long cycle

Active Publication Date: 2018-11-02
KUNMING UNIV OF SCI & TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems and deficiencies in the above-mentioned prior art, the present invention provides a heat pump-microwave-infrared combined interval drying method for grass fruits; Tsaoguo dried by the inventive method has a higher content of volatile oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: the average water content of fresh grass fruit is 75% in the present embodiment;

[0018] A heat pump-microwave-infrared combined interval drying method for grass fruit, the specific steps are as follows:

[0019] (1) Evenly spread the fresh tsao berries to the high-pressure washing system to clean the surface stains, and then send them to the heat pump drying system for drying and preheating until the surface of the tsao berries has no moisture. The temperature of the hot air in the heat pump drying system is 70°C. Hot air flow rate is 3000m 3 / h, the thickness of fresh Tsao Guo evenly tiled is 15mm, and the tiled width is 1m;

[0020] (2) Transfer the grass fruit obtained in step (1) to a microwave-infrared interval drying system for microwave-infrared alternate drying for 15 minutes to obtain dried grass fruit, and perform centrifugal dehumidification on the microwave-infrared interval drying system; The power is 9kw, the infrared power is 3kw, and th...

Embodiment 2

[0022] Embodiment 2: the average water content of fresh grass fruit is 70% in the present embodiment;

[0023] A heat pump-microwave-infrared combined interval drying method for grass fruit, the specific steps are as follows:

[0024] (1) Evenly spread the fresh tsao berries to the high-pressure rinsing system to clean the surface stains, and then send them to the heat pump drying system for drying and preheating until the tsao berries surface has no moisture. The temperature of the hot air in the heat pump drying system is 50°C. Hot air flow rate is 5000m 3 / h, the thickness of fresh Tsao Guo evenly tiled is 35mm, and the tiled width is 1.2m;

[0025] (2) Transfer the grass fruit obtained in step (1) to a microwave-infrared interval drying system for microwave-infrared alternate drying for 25 minutes to obtain dried grass fruit, and perform centrifugal dehumidification on the microwave-infrared interval drying system; The power is 18kw, the infrared power is 6kw, and the ai...

Embodiment 3

[0027] Embodiment 3: the average water content of fresh grass fruit is 73% in the present embodiment;

[0028] A heat pump-microwave-infrared combined interval drying method for grass fruit, the specific steps are as follows:

[0029] (1) Evenly spread the fresh tsao berries to the high-pressure washing system to clean the surface stains, and then send them to the heat pump drying system for drying and preheating until the surface of the tsao berries is free of moisture. The temperature of the hot air in the heat pump drying system is 60°C. Hot air flow rate is 4000m 3 / h, the thickness of fresh Tsao Guo evenly tiled is 25mm, and the tiled width is 1.0m;

[0030] (2) Transfer the grass fruit obtained in step (1) to a microwave-infrared interval drying system for microwave-infrared alternate drying for 20 minutes to obtain dried grass fruit, and perform centrifugal dehumidification on the microwave-infrared interval drying system; The power is 13.5kw, the infrared power is 4....

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Abstract

The invention relates to a heat pump-microwave-infrared combination alternate drying method for amomum tsao-ko, and belongs to the technical field of food processing. According to the method, fresh amomum tsao-ko is uniformly spread and conveyed into a high pressure rinsing system for cleaning surface stains, and then conveyed into a heat pump drying system for drying and preheating till the surface of the amomum tsao-ko is free of moisture, wherein the hot air temperature of the heat pump drying system is 50-70 DEG C, and the hot air flow rate is 3000-5000 m<3> / h; and the amomum tsao-ko is conveyed into a microwave-infrared alternate drying system for microwave-infrared alternate drying for 15-30 min to obtain dry amomum tsao-ko, and the microwave-infrared alternate drying system is centrifugally dehumidified. According to the heat pump-microwave-infrared combination alternate drying method, the shortcomings of low efficiency, too long period and the like of a traditional drying method can be overcome, and the amomum tsao-ko dried with the method contains high-content volatile oil.

Description

technical field [0001] The invention relates to a heat pump-microwave-infrared combined interval drying method for strawberries, which belongs to the technical field of food processing. Background technique [0002] Tsaoko (scientific name: Amomum tsaoko Crevost et Lemarie), a perennial medicinal and edible herb belonging to the genus Zingiberaceae, is one of the traditional Chinese medicinal materials recorded in the Pharmacopoeia of the People's Republic of China (2015 edition), and is also a national standard GB / T12729. 1—2008 "Spices and Condiments Names" is one of the 68 kinds of natural spices currently commonly used, known as "the king of appetizers, poppy substitutes". Caoguo is mainly distributed in parts of my country's Yunnan, Guangxi, and Guizhou provinces, as well as parts of Vietnam and northern Laos. Yunnan is the main producing area of ​​Tsaoguo in my country, and its planting area and output account for more than 90% of the country's total, so Tsaoguo is al...

Claims

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Application Information

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IPC IPC(8): F26B1/00F26B3/02F26B3/30F26B3/347F26B21/10F26B21/12
CPCF26B1/00F26B3/02F26B3/30F26B3/347F26B21/10F26B21/12F26B2200/02
Inventor 黄孟阳张明宇李华健杨玺刘秉国
Owner KUNMING UNIV OF SCI & TECH
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