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Energy-saving type grain microwave insect preventing and mould-proof method and special equipment

A kind of anti-mildew technology for grains, which is applied in the direction of trapping or killing insects, application, preservation of seeds through radiation/electrical treatment, etc., can solve the problems of tarnish and beauty, high cooling speed, surface cracks, etc. The effect of enhanced thermal effect, improved heat transfer efficiency, and shortened time

Inactive Publication Date: 2009-11-11
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the cooling rate of rice is too high or using wind cooling, it will cause surface cracks and roughness, and lose its original luster and beauty

Method used

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  • Energy-saving type grain microwave insect preventing and mould-proof method and special equipment
  • Energy-saving type grain microwave insect preventing and mould-proof method and special equipment
  • Energy-saving type grain microwave insect preventing and mould-proof method and special equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 (basic test method and equipment example):

[0044] 1. Test materials and equipment

[0045] The grains used in the experiment were paddy and rice produced in China (the variety is Jinyou 207, provided by Hunan Jinjian Rice Industry Co., Ltd.). The common storage insects are rice elephant, saw-saw thieves, and red-thick thorax, which were donated by Henan University of Technology. The analysis and detection instrument is a near-infrared grain quality analyzer (Perten 9100 / 01, produced in Germany).

[0046] The microwave oven of the present invention adopts an industrial microwave oven, model: QW-15HM type, 2450MHz, output power 24KW, produced by Guangzhou Kewei Microwave Energy Co., Ltd. The effective size (the accumulation volume of rice in the microwave oven) is 4680mm×600mm×60mm (length×width×height).

[0047] 2. Test method:

[0048] (1) Sample preparation

[0049] 1) Inject 20 live and healthy test insects (rice elephant, saw-saw beetle, and red-s...

Embodiment 2

[0075] Embodiment 2 (special equipment of the present invention and process parameter example):

[0076] attached by figure 1 , 2 As shown, the processing equipment of the present invention includes processing units A and B, wherein the projected length L1 of the belt conveyors (5), (6) in processing unit A is L1=2m, and the actual length is 2.263m. The belt width is 600mm, the quantity is 3, and the inclination angle θ=20°. The rotating speed of belt conveyors 5 and 6 is 399 rpm, and the residence time of rice in A1 and A2 is 8 minutes respectively.

[0077] The belt conveyor (7) in the processing unit B has a length L=3m and a width of 600mm; the belt conveyor (8) has a length of 3.3m and a width of 600mm. The rotating speed of belt conveyor (7), (8) 375 turns / min. The total time of microwave treatment (B1 and B2) was 5 min. Microwave output power is 13.125kw;

[0078] The total length of the microwave device is 9.8m, the total width is 0.7m, and the total height is 3...

Embodiment 3

[0086] Embodiment 3 (invention effect example):

[0087] In order to obtain the best implementation mode of the present invention, applicant comparatively designed 1#-17# series test, through reagent test and test, its main technical parameters are as follows:

[0088] Microwave output power: P=13.125kw;

[0089] Rice flow rate is 820kg / h; irradiation quality is 85.3kg (rice), 71.6kg (paddy);

[0090] The specific heat of rice is 1.96kJ / kg·℃; the heat loss is 5%; the microwave dose (power) is 0.15kw / kg;

[0091] The initial temperature of rice is 38°C; the material thickness is 50±2mm; the material width is 500±2mm;

[0092] The total length L=7.2m that is used for irradiation treatment in the microwave oven of experiment; When the rotating speed of belt conveyor (7) and (8) 300,375,400 turns / min, corresponding microwave treatment time is 4,5,6min respectively.

[0093] Table 1 shows the preheating air temperature 45°C-50°C, time 8-12min, so that the rice temperature after ...

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Abstract

The present invention relates to an energy-saving type pests-resisting mould-proofing treatment method for grains and its special-purpose equipment. Said invention includes the microwave irradiation-cooling treatment steps, and is characterized by that it includes the steps of preheating, microwave irradiation, cooling and heat exchange, in which the heat exchange is implemented in unit A for preheating and cooling and the microwave irradiation is implement in unit B, and between unit A and unit B ac closed channel is connected. Besides, said invention also provides its working principle and operation method.

Description

technical field [0001] The invention belongs to the technical field of grain storage and preservation. Specifically, it belongs to the technical field of prevention and control of main storage pests and molds of rice, rice, wheat, etc. Various worm states such as adults, eggs, etc.) and methods and special equipment for reducing rice mold Background technique [0002] The research on pest control and mildew control in the grain storage process in my country is mainly aimed at the raw materials after harvest. At present, the commonly used pest control methods are chemical fumigation represented by phosphine (or aluminum phosphide) and methyl bromide. Taking rice as an example, chemical fumigants have a good control effect on adults, but the control effect on insect eggs and mold is poor, and it will bring 3R problems (enhanced resistance, pesticide residue, and rampant growth), Food safety and ecological environment issues. Due to food safety and other reasons, edible rice...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B9/06A01M17/00
CPCY02P60/85
Inventor 赵思明熊善柏刘友明谭汝成程学勋程科
Owner HUAZHONG AGRI UNIV
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