Method and device for automatically washing picked porphyra yezoensis shoots

Abstract

The invention discloses a method and device for automatically washing picked porphyra yezoensis shoots. The device for automatically washing the picked porphyra yezoensis shoots comprises a submerged pump and a water inlet pipe. The water inlet pipe is shaped like a Chinese character 'hui'. One end of the water inlet pipe is connected with the submerged pump and the other end of the water inlet pipe is provided with three arm type rotary nozzles. The interval of the nozzles arranged on the same line ranges from 1.5 m to 4 m. Two rows of parallel nozzles are arranged in a staggered mode. The spraying range of the nozzles is a circle with the radius ranging from 1 m to 2 m. Each nozzle is composed of a hollow shaft core and three arm type water outlet pipes. The hollow shaft cores are connected with the water inlet pipe. Water outlets are evenly formed in the arm type water outlet pipes. After stimulation of the day and night temperature difference and the running water stimulation, conchospores are diffused by shell protonemata in a concentrated mode in the morning of a next day, high-density conchospore water in a nursery pond is pumped to the water inlet pipe through the submerged pump and sprayed to a shoot picking net curtain through the three arm type rotary nozzles, and therefore a whole nursery system is washed synchronously and evenly. The device is simple in structure and operation, quite low in constructive cost, low in use cost and better in shoot picking effect.

Description

technical field [0001] The invention relates to a method and a device for collecting seedlings of Porphyra variegata, in particular to an automatic flushing method for collecting seedlings of Porphyra variegata and a flushing device. Background technique [0002] Porphyra is a type of large seaweed with high nutritional value. Its protein content is as high as 40%. According to the international amino acid scoring standard, the amino acid score in laver is over 90 points. It is the plant species with the best reported amino acid ratio. my country's seaweed cultivation area and yield are among the top in the world. The main cultivated varieties are altar laver in the south and Porphyra zebra in the north, and the annual output value of Porphyra zebra accounts for about half of the total value of laver in my country. After more than 30 years of development, my country has formed a scale of 320,000 mu of Porphyra zebra cultivation area and a total industrial value of 3 billion...

AI Technical Summary

Problems solved by technology

This process requires a lot of manpower and financial resources. When the cost was low in the early stage, it was 40-50 yuan / person / day. However, with the sharp increase in labor costs in recent years, in the autumn of 2013, the labor cost of picking seedlings and flushing water Rise to 80-100 yuan / person / day; 1000m 2 About 20 people are required to flush the seedling area every day, and the seedling harvesting cycle lasts for about one month. For one seedling harvesting cycle, the labor cost for flushing only is about 48,000-60,000 / 1000m 2

[0004] Due to the influence of artificial factors such as uneven spraying of artificial flushing, in the same nursery room, the natural environment conditions such as light, temperature, wind direction, water flow, and nutrient salts of two adjacent nursery ponds are the same, but the artificial flushing will be different due to the artificial flushing. Evenly, one pond has concentrated seedling emergence and a higher seedling collection rate, while the other pond has problems such as non-concentrated seedling emergence and low seedling collection rate

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