During the maintenance of the mixing station, the main power supply must be cut off, the door of the distribution cabinet must be locked, and the key should be kept by the electrician.Power cutting and transmission must be operated by electrician.When starting the belt conveyor, mixing host, and other motors, it is necessary to observe whether there are people or other sundry things on the motor, in order to prevent injury or damage to the equipment when starting. When cleaning, it is strictly prohibited to flush the electric motor, electrical switch, solenoid valve and other electrical appliances with water to prevent electric shock and damage to electrical equipment.When the mixer is working, it is forbidden to stand in the discharging area.Non-operators are forbidden to enter the control room, smoking and doing things unrelated to the operation are prohibited.There is no operator in the operating room. Power must be cut off and doors and Windows must be locked before leaving. 240 M3/h Concrete Batching Plants Hzs Ready Mix Batching Plant,Hzs Mini Concrete Batching Plant,Hzs Batching Plant,Hzs Belt Conveyor Batching Plant Shandong Zeyu Heavy Industry Science and Technology Co.,Ltd. , https://www.zeyuconcretemachine.com
A bridge steel box girder with a length of 103 meters, a width of 19 meters and a weight of more than 1300 tons was built at Wuchang Shipyard and successfully launched. According to experts, the steel box girder is the main span steel box girder for the widening reconstruction project of the Chongqing Shibanpo Yangtze River Bridge. Its construction size and weight are the world's largest single-section steel box girder.
The widening renovation project of the Chongqing Shibanpo Yangtze River Bridge is to build a bridge of the same type 5 meters upstream of the bridge to alleviate the traffic pressure in downtown Chongqing. In order to ensure the smooth flow of the main channel of the Yangtze River, the 330-meter main span of the bridge crosses the river, which is a pioneering work in the history of the world T-shaped steel-mixed bridge. It is reported that the 330 m main span is made of concrete at both ends, and China is a 110 m long steel box girder. The steel box girder is divided into three sections, two of which are 4 m long in length with the concrete embedded section, and the main beam section is 103 m long. After undertaking the steel box construction task, Wuchang Shipyard has carefully constructed with the comprehensive advantages of technology, site, equipment and transportation. After the completion of the project, the error of the 103 m main beam section of the steel box girder is only 3 mm.
Because the steel box girder is very large, it can only be transported by water to make it “sail†from Wuhan to Chongqing. To this end, the martial art built the steel box girder as a ship, installed the "spoon" in its head, and installed the signal lights and tethers required for the navigation of the ship in the upper part, and carried out a full sealing inspection of the box to ensure steel. The box girder is in a "sail" in the 1286-kilometer waterway from Wuhan to Chongqing. According to the transportation hoisting plan, the steel box girder will arrive in Chongqing 20 days after launching, and will be steered by the on-site tooling at 90 degrees, then hoisted by a large floating crane, embedded on the main span, and finally welded to the dragon. The industry said that the final welding of the dragon. According to industry insiders, the overall manufacture, launching, floating, steering and field hoisting of such large-volume, large-tonnage steel box girders are rare in the history of bridges in China and the world.