Flower shape low temperature fixing method and equipment by adopting liquid nitrogen
A low-temperature, liquid nitrogen technology, applied in lighting and heating equipment, special decorative structures, dry solid materials, etc., can solve the problems of difficult quick discharge of moisture, gelatinization of rose petals, etc., and achieve high commercial value and beautiful shape , the effect of preventing coking phenomenon
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Embodiment 1
[0046] A kind of method adopting liquid nitrogen low temperature fixing rose shape, this method comprises the following steps:
[0047] (1) The freshly picked roses are subjected to liquid nitrogen low-temperature freezing to shape the shape, the temperature of the low-temperature freezing is -196°C, and the time is 8s.
[0048] (2) First, the frozen roses are first dried with an open blast high microwave power of 16KW for 30 seconds, then dried with an open blast low microwave power of 7KW for 3 minutes, and finally microwaved. It is 15KW open blast high microwave power drying for 40 seconds, and the wind speed during the open three-stage blast microwave drying process is 6.5 m / min.
[0049] Finally, a dry rose with good flower shape maintenance, no shrinkage of petals and beautiful appearance is obtained.
Embodiment 2
[0051] A kind of method adopting liquid nitrogen low temperature fixing rose shape, this method comprises the following steps:
[0052] (1) The freshly picked roses are first subjected to liquid nitrogen low-temperature freezing to shape the shape. The temperature of the low-temperature freezing is -196°C and the time is 5s.
[0053] (2) First, the frozen roses are first dried with an open blast high microwave power of 10KW for 1 minute, then dried with an open blast low microwave power of 8KW for 2 minutes, and finally microwaved. It is 18KW open blast high microwave power drying for 30 seconds, and the wind speed is 7 m / min during the open three-stage blast microwave drying process.
[0054] Finally, a dry rose with good flower shape maintenance, no shrinkage of petals and beautiful appearance is obtained.
Embodiment 3
[0056] A kind of method adopting liquid nitrogen low temperature fixation gardenia flower shape, this method comprises the following steps:
[0057] (1) The freshly picked gardenias were first subjected to liquid nitrogen low-temperature freezing to set the shape, the temperature of the low-temperature freezing was -196°C, and the time was 10s.
[0058] (2) The Gardenia after freezing is first carried out microwave power is 17KW open air blast high microwave power drying for 50 seconds, then carries out microwave power is 8KW open air blast low microwave power drying for 4 minutes, finally carries out microwave power drying. It is 12KW open blast high microwave power drying for 1 minute, and the wind speed during the open three-stage blast microwave drying process is 7 m / min.
[0059] Finally, the dried gardenia with good flower shape maintenance, no shrinkage of petals and beautiful appearance is obtained.
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