Wet iron ore powder bin device capable of preventing arching and arch breaking and application method

Abstract

The invention relates to a wet iron ore powder bin device capable of preventing arching and arch breaking and an application method. The wet iron ore powder bin device comprises a bin straight barrel, a bin cone, lining plates, driving devices, drum hammers, supports, drum membranes and a weighing belt weigher, wherein the lower end of the bin straight barrel is connected with the upper end of the bin cone; the lower end of the bin cone is a discharging port; the bin cone is of an asymmetric structure with inconsistent side tapers; the lining plates are fixed on the inner surfaces of the bin straight barrel and the bin cone; holes are formed in the bin cone and the lining plates in the bin cone in the circumferential direction; the drum hammers are arranged in the holes, and are arranged at the holes in the inner sides of the lining plates. the drum hammers are connected with push rods of the driving devices; the driving devices are installed on the supports; the supports are fixed onto the bin cone; and the weighing belt weigher is installed below the discharging port. The device further comprises a computer, wherein the driving devices and the weighing belt weigher are electrically connected with the computer. According to the wet iron ore powder bin device capable of preventing arching and arch breaking and the application method provided by the invention, the arching prevention measures are taken from three aspects, and arching prevention and arch breaking can be achieved for wet iron ore powder.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a wet iron ore powder silo device capable of preventing arching and breaking and a method for using it. Background technique [0002] During iron ore suspension and magnetization roasting, the filter material delivered by the previous process is stored in the silo and used as a buffer, which provides time for the previous process to deal with failures without affecting the normal operation of the iron ore suspension magnetization roaster. However, most of the current silo failures are arching blockages. The specific reasons, types, powder flow forms, anti-arching and arch-breaking measures for the arching of the silo are as follows: [0003] The main reasons for the arching of the silo: the storage time of the material is too long, the increase of moisture causes the material to agglomerate; the adhesion between the material and the silo wall; the structural shape ...

AI Technical Summary

Problems solved by technology

[0007] The moisture in the wet iron ore powder is more than 10%, the silicon content is more than 25%, and the particle size is very fine, which has the main reason for the above-mentioned arching, which causes frequent blockage of the silo. Due to the arching blockage of the silo, The feed balance of the suspension magnetization roasting furnace system is destroyed, which affects the stable operation of the suspension magnetization roasting furnace system. In severe cases, it may cause damage to the equipment and shutdown of the furnace. Addiction, the traditional arch breaking methods also include warehouse wall vibration, air cannon, etc., but the iron ore powder filter material used to break the humidity is not effective

Images