Steel Structural Installation of Top Feed System in Blast Furnace
The top feed system of the blast furnace is a complex system that includes the closing hopper at the top of the furnace, the feeder system, the shaft hopper, the lifting mechanism and the main hopper. Its purpose is to supply hot molten iron and solid charging materials, such as coke, sinter and pellets, to the furnace. Steel structures are essential for proper installation and operation of the top feed system.
First of all, the steel structure for the feeder system must be carefully designed and pre-assembled in an off-site location. It must include the main hopper, several connecting beams, shaft hopper, a turntable and a pulley. The steel frames and beams should be made of high quality and high-tensile strength steel with a superior thermal rating and corrosion resistance. The steel structure must be welded and inspected to ensure that it is strong and durable to hold the heavy components of the feeder system.
The second step of the installation process is to install the main hopper at the top of the blast furnace. This is the most important steel structure of the top feed system and is responsible for the storage and delivery of the molten iron and solid charging materials. The main hopper should be securely mounted to the furnace wall and the steel frame must be strong enough to bear the weight of the hopper and its contents. The foundation for the main hopper is also important for proper operation of the hopper and should be installed according to the manufacturers instructions.
The next step is to install the shaft hopper. This steel structure is connected to the main hopper and is used to deliver the charging materials to the main hopper. This steel structure should be of highest quality and able to endure the pressure, stress and temperature from the hot molten iron. The shaft hopper is also connected to the lifting mechanism and the connective beams for the turntable, pulley and other moving parts in the feeder system. All these steel components must be securely connected and inspected before the installation of the lifting mechanism.
The lifting mechanism is the last step in the steel structural installation of the top feed system. This is the steel system that is responsible for lifting the molten iron and solid charging materials from the main hopper to the shaft hopper. This steel structure should be able to withstand the weight of the materials, the pressure and the temperature of the hot molten iron.
The top feed system of the blast furnace requires proper installation and maintenance of the steel structures in order to ensure its safe and effective operation. The steel structures must be carefully designed, securely mounted and inspected for their strength, quality and durability. Installation of the top feed system is a complex process that requires the skills of a highly experienced steel structural installer.
