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Method and device for continuously heating and sterilizing solid materials by tubular microwaves

A technology of heat sterilization and microwave heating, which is applied in the direction of heating, water supply equipment, sanitary equipment for toilets, etc., and can solve related problems such as complicated processes

Inactive Publication Date: 2010-05-19
XINJIANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the case of high requirements for heat sterilization of solid materials or complex related processes, the existing microwave sterilization technology has certain limitations

Method used

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  • Method and device for continuously heating and sterilizing solid materials by tubular microwaves
  • Method and device for continuously heating and sterilizing solid materials by tubular microwaves

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Effect test

Embodiment 1

[0020] The tubular microwave continuous heating and sterilizing solid material device is composed of a pressurized solid material conveying system, a microwave heating system and an automatic control system. Among them, the pressurized solid material conveying system is composed of a feed inlet (1), a screw pump (2), a feed pipe (3), a rotary sealing valve (7), and a discharge port (8); the heating system is mainly composed of an array of graded The heating microwave oven (5) is composed of a steam generator (12); the steam generator (12) is only used as an auxiliary equipment for the sterilization and heating system inside the device when the whole device is started, and the tubular microwave continuous heating and sterilizing solid material device starts And after normal operation, the steam generator should be closed in time; the control system is mainly composed of a pressure sensor (10), a temperature sensor (9) and a related control device (11) installed between the micro...

Embodiment 2

[0026]In the production process of solid-state fermentation to produce red yeast rice, protease, pectinase, cellulase, citric acid, ethanol, lactic acid, gibberellin, vitamins, soy sauce, vinegar, liquor, protein feed, b.t. preparations, edible fungi, etc. , the medium for solid-state fermentation needs to be sterilized. With the present invention, the solid material to be sterilized is pushed into the feed pipe (3) from the feed port (1) via the screw pump (2). The propelling force of the material is provided by the screw pump. Under the push of the screw pump, the solid material enters the delivery pipe from the feed port and is pushed to the discharge port. Rotary seal valve connection can control the continuous output of materials while ensuring sufficient steam pressure and sterilization temperature in the delivery pipe. When the solid material travels in the feeding pipe, it is heated and sterilized by the microwave heating chamber (5). The sterilization temperature and...

Embodiment 3

[0028] In the process of food processing, the present invention is used to continuously heat and sterilize dried fruits, candied fruit, pickles, various seasoning powders, etc.; the sterilization temperature is selected in the range of 120°C-140°C depending on the nature of the material and the requirements of the sterilization process. The working pressure of pressurized steam is generally selected between 0.2063Mpa-0.3653Mpa, and the time is 0.1-20 minutes. The corresponding products after sterilization are more hygienic and safer to eat, and the shelf life and shelf life of the products are more guaranteed.

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Abstract

Solid materials with water are continuously heated by multistage microwaves to produce water vapor; the pressure of the water vapor from 0.1017MPa to 1.0015MPa is formed in a tube for closing the water vapor; the preferable pressure of the water vapor is from 0.2063MPa to 0.3653MPa; a threaded rod pump is used for continuous charging in a controllable mode; a rotating valve is used for continuous discharging in a controllable mode; the device for continuously heating and sterilizing solid materials by tubular microwaves is operated with the pressure; and the solid materials are heated by the microwaves to above process sterilizing temperature and under the pyrogenation or coking temperature of the materials to continuously sterilize the solid materials with water. The device is widely applied to the fields of food, brewage, fruit processing, extraction of Chinese herbal medicine and the production of organic fertilizer.

Description

technical field [0001] The method and device for tubular microwave continuous heating and sterilization of solid materials relate to the technical field of microwave continuous heating and sterilization of solid materials in biological engineering, chemical industry, food and environmental engineering. Background technique [0002] At present, in many fields such as food, pharmaceuticals, agricultural and sideline products processing, brewing, organic waste treatment, solid-state fermentation, chemical industry, manufacturing industry, etc., the problem of heating and sterilization of solid materials is often encountered. Compared with traditional steam heating and sterilization, microwave heating and sterilization of granular, powdery and other aqueous solid materials can significantly shorten the sterilization time. It has many advantages such as simple equipment, low energy consumption, easy operation and easy automation. There is no environmental pollution problem. When...

Claims

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Application Information

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IPC IPC(8): A61L2/12A61L2/04A61L2/24
Inventor 王卫国王志东王皓计巧灵
Owner XINJIANG UNIVERSITY
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