Science and Technology Daily, Beijing, August 4 (Reporter Ma Aiping) Rongcheng in August was picturesque.
With the roar of the machine, the skewers of oysters were dragged onto the surface and sent to the conveyor belt. Under the strong washing of the sea water, clean oysters were harvested.
“Marine oyster farming can also be mechanized like harvesting wheat.” At the operation site, Yan Rongjin, general manager of the Rongjin Oyster Farming Cooperative in Rongcheng City, Shandong Province, said happily, “The oyster mechanized harvesting equipment can be harvested by 2-3 people. Reaping production, the operating speed is 8-10 meters/minute, and the production capacity is 6-8 tons/hour. Compared with manual harvesting, the efficiency is 6-10 times higher, and the recovery rate is increased to 99%." Yan Rongjin said.
A few days ago, the Shandong Fisheries Society organized experts to evaluate the results of "Development and Industrialization Demonstration of Automatic Oyster Harvesting and Cleaning System at Sea" and passed the acceptance.
The evaluation expert group unanimously agreed that the system is the first in China, and the overall results have reached the leading level.
According to Shen Jian, head of the technology innovation team for raft farming mechanization of the Fisheries Machinery and Instrument Research Institute of the Chinese Academy of Fishery Sciences, the research team designed and developed the oyster hanging raft traction and water Equipment for lower lifting, conveying, stripping, main raft guide, high-pressure spray cleaning, etc., integrated research and development of oyster mechanized harvesting operation platform, and constructed a raft-type hoisting oyster mechanized harvesting and cleaning integrated operation system.
"Compared with traditional manual operations, the system's production efficiency is increased by 10 times, labor is saved by 90%, and the recovery rate is increased from 91% to more than 99%, which effectively solves the current serious labor shortage in oyster farming and harvesting." Li Qi, a professor at the Fisheries College of Ocean University of China, the leader of the evaluation expert group, said that at the same time, compared with traditional land-based cleaning, the harvesting equipment reduces land-based sewage discharge and avoids the extraction of cleaning water, raw material transportation, and discharge of wastewater after cleaning. , Realized energy-saving, emission-reduction and clean production; by reducing the breeding density and adopting new longline breeding technology, the oyster raft-type farming model was constructed; and the integrated oyster harvesting and cleaning system was designed and constructed to realize the mechanization of oyster-raft breeding Harvesting has promoted the mechanization of marine aquaculture.