Material feeding method

Abstract

The invention belongs to the technical field of feeding, and particularly relates to a material feeding method. According to the material feeding method, the rotary feeder is used for conveying materials in the stock bin to the discharge port of the stock bin; during feeding, the rotary feeder is used for driving the arch breaking device to conduct mechanical arch breaking on materials in the stock bin. According to the material feeding method, continuous and stable feeding can be achieved, real-time and effective mechanical arch breaking and low-position arch breaking are achieved through the rotating arch breaking plate, real-time and effective high-position arch breaking is achieved through the rotating flexible steel wire rope, and therefore the problems that due to arch breaking, feeding is not stable, and the feeding flow cannot be controlled are solved; through frequency conversion control, the rotating speed of the uniformly rotating rotor is adjusted, and the purpose of adjusting the flow is achieved.

Description

technical field [0001] The invention belongs to the technical field of feeding, and in particular relates to a material feeding method. Background technique [0002] At present, the feeding of solid powder generally adopts the feeding system of intermittent feeding and intermittent metering. This system can only be applied to fixed places (such as concrete preparation stations). High, can only meet the existing production needs. [0003] The feeder is a feeder in a general sense. The feeder is divided into two types: open type and closed type. The common feeders include electromagnetic vibration feeder, bar vibrating feeder, and screw feeder. Material arching refers to the phenomenon that the material forms a domed arch at the outlet of the silo, hindering the discharge. When the material is discharged from the silo, due to the friction and cohesion between the particles and between the particles and the inner wall of the silo, an arch is formed above the discharge port, w...

AI Technical Summary

Problems solved by technology

But its shortcomings are obvious. First, because the intensity of vibration is fixed and not adjustable, its arch-breaking effect is not reliable. Second, the long-term vibration makes the silo plate fatigue, which causes it to be pulled apart or welded at the welding point, which affects the material. The safety of the warehouse; the compressed air arch breaking method introduces a gas medium into the powder particles, so that the application range is greatly limited by the physical parameters of the powder material, such as some flammable and explosive materials, the water content and oxygen content of the gas At the same time, it is difficult to control the flow of the arch-breaking airflow, which also makes the arch-breaking effect unreliable.

The above two methods are actually not very ideal. When vibrating the material to break the arch, only the solid powder in the vibrating part is broken. It is difficult to effectively break the arch or pre-interference the high-level arch far away from the vibration point. The actual Arching still often occurs during production, which often leads to interruption of feeding

Arch breaking based on the existing feeding material is usually carried out after the arch breaking, so the whole feeding process cannot be stable

Because of the interruption of feeding, most of the powder batching methods adopt intermittent production mode. Due to the poor continuity and accuracy of feeding, the accuracy of continuous production process is difficult to guarantee, and the quality and performance of products will be affected.

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