Ultrasonic spray freeze drying device

A spray freeze-drying and ultrasonic technology, used in heating devices, drying solid materials, drying solid materials without heating, etc., can solve the problems of high production cost, long processing cycle of freeze-drying technology, loss of volatile substances, etc. Easy disassembly, good flavor retention, fast spray rate

Inactive Publication Date: 2018-10-26
DALIAN POLYTECHNIC UNIVERSITY
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Problems solved by technology

[0004] At present, the main method of preparing solid powder is to use spray drying technology, and a few use freeze drying. The solid powder prepared by spray drying technology, on the one hand, due to the high temperature operation of spray drying, causes thermal degradation of heat-sensitive substances; on the other hand, it may suffer Significant loss of volatile substances
Freeze-drying technology allows raw materials to be f

Method used

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  • Ultrasonic spray freeze drying device

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Embodiment 1

[0033] The application of the present invention in the preparation of natural seafood seasoning soup powder. The soup is thawed, homogenized and other pretreatments are carried out. The heating temperature of the heating jacket is 50°C to ensure that the liquid material to be sprayed is sprayed at a temperature of 50°C to ensure that the sprayed liquid material is in a uniform state. The feed flow rate is 5.0mL / min, the ultrasonic power is 3W, and the ultrasonic frequency is 40KHz. The small liquid droplets sprayed by the ultrasonic wave quickly enter the cooling liquid, and are continuously sprayed by the stirring device. The microstructure of the obtained powder is smooth, without gaps and cracks. In the droplets, the protein-rich layer is obtained as a spherical granular product due to this spray freeze-drying, which has the advantages of controllable size, porosity, instant dissolution, good fluidity, and good stability. The ultrasonic spray-freeze drying process helps to...

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Abstract

The invention discloses an ultrasonic spray freeze drying device. The ultrasonic spray freeze drying device comprises an ultrasonic spray nozzle 4, wherein materials are supplied to the ultrasonic spray nozzle 4 by a liquid material conveying device 1; a heating sleeve sleeves outside an injector of the liquid material conveying device 1; the ultrasonic spray nozzle 4 is supported on the upper part of a heat preservation device 5 through a fixing supporting device, and is aligned with a cold medium contained in the heat preservation device 5; the ultrasonic spray nozzle 4 is connected with anultrasonic controller 7 through a high-frequency signal line 8; and in addition, the ultrasonic spray nozzle 4 is provided with a cooling part 9, and the cooling part 9 is connected with a cooler 10.According to the ultrasonic spray freeze drying device, a powder product with relatively small particle size distribution is obtained, the produced powder is small in agglomeration degree, and obtained solid powder directly enters the cold medium for freezing after being sprayed, so that the flavor retention is relatively good. The ultrasonic spray freeze drying device is easy to mount and dismount, convenient to use, easy to control, easy to monitor in real time, high in spray speed and good in flavor retention.

Description

technical field [0001] The present invention relates to ultrasonic equipment, more specifically, relates to an ultrasonic spray freeze-drying device. Background technique [0002] Ultrasound is a sound wave with a frequency higher than 20kHz. It is a process of mechanical vibration in the medium. During its propagation, the interaction between the ultrasonic wave and the medium can change the phase and amplitude of the ultrasonic wave. Ultrasound has a variety of physical and sonochemical effects and is widely used. Ultrasonic technology has been widely used in chemistry, chemical industry, medicine, medical treatment and pesticide because of its many special physical properties, no chemical residue, high safety, simplicity and effectiveness. In recent years, the application in the food industry has also received increasing attention. Ultrasonic extraction, ultrasonic sterilization, ultrasonic drying, ultrasonic filtration, ultrasonic cleaning, etc. in the food industry ha...

Claims

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Application Information

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IPC IPC(8): F26B5/06F26B5/02F26B23/00F26B25/00F26B25/04
CPCF26B5/02F26B5/065F26B23/00F26B25/00F26B25/04
Inventor 秦磊薛佳张玉莹黄旭辉董秀萍李冬梅徐献兵杜明朱蓓薇
Owner DALIAN POLYTECHNIC UNIVERSITY
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