Age 9X has discovered inventions

Nguyen Van Tuan (Quynh Luu, Nghe An) and Ha Hoai Nam (Yen Bai) were both born in 1991. Having just entered the age of a young man, these two young people have been trying to build machines that are right for production. .

Arriving in Quynh Luu, Nghe An, when talking to a union official about Nguyen Van Tuan, the boy invented a gas-shielding anti-shrimp machine, he did not hide his pride because of "talented young boy".

Rescue shrimp farmers to save hundreds of million VND!

The gas-shielding anti-shrimp machine of Nguyen Van Tuan.(Photo: Vifotec)

It is the invention of the gas-proof shrimp anti-air machine of Nguyen Van Tuan, the boy born in 1991 in Quynh Luu. Tuan said, my family has shrimp farming. He found that shrimp farmers often face a lot of risks and dangers, especially shrimp crops, when a family lost hundreds of millions of VND at the end of the season just because the shrimp died of gas.

Through research, Tuan found that the reason when shrimp is large, need more oxygen, must provide enough oxygen for them to live. But how to find out early when the shrimp suffocate to handle is not an easy problem.

According to the experience of shrimp farmers, shrimps only float to the surface when they are short of oxygen. They emerge according to herds, forming a powerful force. Thanks to this experience, Tuan thought of putting up an iron net so that when the shrimp jumped, it would hit the net connected to the electrical switch, causing the electrical switch to close and emit a signal. As a result, it is possible to detect when to handle.

Tuan's airless shrimp anti-shrimp machine was born, operating on the principle that: When the oxygen is inadequate, the shrimp will float on the water surface, the light of the headlight and the electric generator will stimulate the shrimp to work strongly on the surface of the pond lake, hit the net to transmit to the sensor system of the machine.

After the sensor receives the signal, it will transmit the signal through the relay system to the signal receiver to close the circuit to the working aerator, the amount of oxygen is timely added, help the shrimp to be healthy normally and will recede. back to the bottom of the pond.

In addition, the machine also has the ability to alarm against theft and alarm shrimp floating in the water in large quantities thanks to an attached auxiliary component.

Tuan tried his shrimp pond and got good results. What is interesting is that this useful product only costs 250,000 VND. The materials are mostly from scrap metal. The most expensive material is the battery.

GS. Nguyen Duc Khiem, member of the jury of the National Children Youth Innovation Contest (2008) commented on this award-winning product: This device, if invested more, is more complete, can be applied spread into real life to avoid damage and risks to shrimp farmers at the end of the harvest period.

Cinnamon splitting machine is 20 times more productive than manual making

Hoai Nam's cinnamon splitting machine.(Photo: Vifotec)

Only with small savings and free summer days, Ha Hoai Nam (born in 1991) in Yen Bai has successfully manufactured cinnamon splitting machines to help his rural workers avoid accidents caused by knives. cinnamon cut into hands, not long sitting and increased productivity.

This study has surpassed hundreds of other candidates, winning a special prize in the 2007 National Youth Youth Innovation Contest and WIPO Gold Medal.

Nam said, from a young age, she followed her mother to rent cinnamon. Nam said, with the manual method of chopping cinnamon with a knife, it is easy to split into the hand, back pain because of sitting for a long time and inhaling dust but the productivity is only 100-120 kg / day.

Because there was not much money, the material to make this smart machine was bought from scrap stores by Nam. With only VND 2 million within a month of summer, he had to dismantle, weld, poker according to the idea, he had the desired machine.

Simple operation: the machine frame is equipped with devices to help cinnamon pipes be split into pieces according to the desired size. The cylinder head is movable, attached to the blades. When the piston moves, the cinnamon tube passes through the blade and is split into pieces.

In particular, the productivity of cinnamon cutting machine is 20 times that of manual cinnamon splitting, one day it can handle 2000-2400kg.

In the coming time, Nam will study to find more information to increase the productivity of the machine by 40-45 times. Nam wishes his machine will be replicated in life to minimize the hardship for farmers.

Nam shared, I will study more useful machines for farmers. For 3 times, Nam has participated in the National Youth Adolescents Contest, he previously won the 3rd Prize.