A device and method for distributing loose materials for pelletizing raw materials

Abstract

The invention discloses a pelletizing raw material loosening and blanking device and method. The pelletizing raw material loosening and blanking device comprises a base plate, enclosure plates, a material loosening plate, a vibrating plate and a driving device. The enclosure plates are welded to the four sides of the base plate. The vibrating plate is fixed to the middle of the lower surface of the base plate. Material loosening holes are evenly distributed in the upper portion and the lower portion of the base plate respectively. Material loosening bars penetrate through the material loosening holes. The lower ends of the material loosening bars are welded to the material loosening plate. The driving device is connected to the lower surface of the material loosening plate. The material loosening plate is movably connected to the base plate through shaft pins. The material loosening and blanking device is obliquely arranged between a feeding belt and a disc pelletizer. The material loosening bars vibrate at a certain frequency under the driving of the driving device, and thus pelletizing raw materials fallen onto the base plate are loosened into mineral powder with the uniform granularity; meanwhile, the base plate also vibrates continuously under the action of the vibrating plate, so that the mineral powder dispersed on the base plate is evenly distributed in a pelletizing disc. By the adoption of the pelletizing raw material loosening and blanking device and method, the dispersity of the pelletizing raw materials fallen into the pelletizing disc can be improved, the contact area between a green pellet and the mineral powder is increased, the pelletizing time is sufficient, and the quality of the green pellet is improved; the quality of returned materials is reduced, and the load of a screening system is reduced.

Description

technical field [0001] The invention belongs to the field of pellet production, and in particular relates to a loose material distributing device and method for pelletizing raw materials. Background technique [0002] The disc pelletizing machine adopts the pelletizing principle of rolling forming. It is a disc-shaped pelletizing equipment that makes fine-grained powdery materials into spherical materials whose particle size meets the requirements of the next operation. It is widely used in iron ore pellets in the metallurgical industry. Ball production and pelletizing of non-ferrous metal mixed concentrates. During the process of rolling the material into a ball, under the action of friction with the bottom surface of the disc, it is carried by the disc to rotate counterclockwise. When the material is brought to a certain height, the material will roll down, so that different sizes The cue ball rolls and rubs with the disk, continuously sticks to the bulk material and grow...

AI Technical Summary

Problems solved by technology

[0004] Patent application No. 200810117842.X discloses a pelletizing tray feeder, which is made of a U-shaped steel support frame, and a plurality of round holes are opened on both side walls of the support frame, and smooth and wear-resistant steel sticks are placed in the round holes. , grooves are made at both ends of each stick, and at each position aligned with the grooves, a sliding arm is fixed on the protective cover with bolts, and the free end of the sliding arm is placed in the groove of the head of the stick, so that the stick only It can roll, but the device is complicated to manufacture and the stick is easy to get stuck, so it can't achieve the loosening effect

[0005] Patent application number 201120485138.7 discloses a pelletizing disc feeding device, including a disc pelletizing machine and a feeding belt, and a distribution plate is set between the outlet of the feeding belt and the disc pelletizing machine, but the distribution The board only has a buffering effect on the pelletizing raw materials, but fails to fully disperse the raw materials, let alone achieve uniform distribution

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