Ultrasonic fumigating atomization method for insect-expelling and anti-mildew for storage agricultural products by utilizing composite essential oil
A technology of ultrasonic atomization and essential oils, which is applied in application, food preservation, edible seed preservation, etc., can solve the problems of increasing operators’ exposure to toxic gases, mold and other microorganisms that are not inhibited, and endanger human health, etc. Drug resistance, low cost, good volatility
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[0045] Example 1
[0046] Dehydration and refining of Litsea cubeba oil, clove oil, ageratum oil and geraniol oil: Litsea cubeba oil, clove oil, ageratum oil and geraniol oil purchased from the rural areas directly enter the w-2 intermittent alcohol recovery distillation tower (Wuxi) LTECH Petrochemical Equipment Co.) Perform secondary distillation at 130°C and 1.15 atmospheres, and add CaCl after collection 2 Dehydrate, make the water content of the essential oil less than 3%.
[0047] Cinnamon oil preparation: purchased from the market, benzaldehyde and glyoxylic acid containing more than 96.1% by volume were mixed with glyoxylic acid in a volume ratio of 1:1.2, then added to the reactor and reacted at 25°C for 15 minutes, stirring while adding 110 times / min. Then, after standing for 8 hours, the unreacted glyoxylic acid in the lower layer is released, and the reactant in the upper layer is cinnamon oil.
[0048] Compound essential oil preparation method: according to the volume r...
Example Embodiment
[0051] Example 2
[0052] As attached figure 1 The design drawing and description of the drawings of the ultrasonic fumigation and atomization device are implemented according to the connection relationship between the components in each part of the circuit described in the content of the invention and the technical parameter requirements of the components described in the implementation. The invention can be implemented.
[0053] An ultrasonic fumigation and atomization device, such as figure 1 As shown, the ultrasonic fumigation and atomization device includes a DC power supply 1, a connecting wire 2, an atomization cylinder head 3, an atomization cylinder body 4, an ultrasonic transducer 5, an atomization pipe interface 6 and a blast system 7. The output terminal 2-1 of the connection wire 2 is connected to the DC power supply 1, and the input terminal 2-2 of the connection wire 2 is connected to the ultrasonic transducer 5 through the atomization cylinder head 3; the atomizatio...
Example Embodiment
[0066] Example 3
[0067] Microscopic measurement of atomization effect: use a pipette to suck 2-3μL of water on the cleaned glass slide, push the water drop away, and put the ultrasonic transducer in the ultrasonic fumigation atomization device made in Example 2 In a 2L beaker containing compound essential oils, turn on the power for ultrasonic atomization, and use a water-coated glass slide to collect 5cm, 25cm and 40cm from the atomized liquid surface (the side of the glass slide with the droplets) Put the collected glass slide under an inverted microscope to observe and take a video of the fog droplets; then use a micrometer to calibrate the fog droplets at the same magnification, and finally use the scrimagt software to perform gray scale ratio and boundary extraction on the image And statistical analysis, the results show as Figure 4 : The most abundant droplets of the droplets collected at a distance of 5cm from the liquid surface account for 66%. The particle size is 7-...
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