In March 2021, Qingdao Airbrother Technology Co., Ltd. successfully signed a contract with China National Coal Group Corp to participate in the world's first overhead grain air dome silo project.
At 18:45 on June 7, 2022, after multiple preliminary processes such as fan debugging, film exhibition, and foundation fixation, the first dome warehouse 4 # of the project took 105 minutes to rise from the ground.
As the world's first overhead grain air dome silo, there are a total of four silos in the Sichuan Xinjin Direct Grain Reserve Warehouse, each 36.1 meters high and 23 meters in diameter. A single silo can store 7500 tons of grain. Based on the daily consumption of half a kilogram of food by each adult, one warehouse of food can meet the annual food needs of 70000 people.