Ball material feeding device of ferrite pre-sintering rotary kiln

Abstract

The invention discloses a ball material feeding device of a ferrite pre-sintering rotary kiln. A ball material storing mechanism, a material receiving mechanism, a discharging pipeline and a feeding controller are included; the material receiving mechanism comprises a connection screw, a bottom plate and a feeding cylinder; the upper end of the discharging pipeline is connected with a discharginghole formed in the bottom plate, and the lower end of the discharging pipeline stretches into a rotary heating pipe of the rotary kiln; and the feeding controller comprises a cycle timer and an electromagnetic valve, and the feeding controller is electrically connected with the feeding cylinder. Due to the above manner, the ball material feeding device of the ferrite pre-sintering rotary kiln is reasonable and compact in overall structure; a full-automatic control manner is achieved through the feeding controller; and the feeding process is not affected by the ball diameter or the ball type, and ball materials are not extruded or broken, either.

Description

technical field [0001] The invention relates to the technical field of production equipment for soft ferrite materials, in particular to a ball material feeding device for a ferrite pre-burning rotary kiln. Background technique [0002] At present, there is basically a pre-firing process in the production of ferrite, the purpose is to remove part of the impurities in the raw material and make the raw material ferrite initially, so as to obtain higher performance and reduce shrinkage deformation during final firing . Rotary kilns are commonly used in the industry for pre-firing. There are generally three types of feed materials during pre-firing, one is powder, the other is spherical, and the other is flakes. The powder is the original raw material. state, spheroids and flakes are obtained by pelletizing and tableting the powder respectively. Among them, the spheroid pre-sintering method is widely used in the industry because of its good material fluidity and simple processi...

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Problems solved by technology

[0004] At present, there are three commonly used feeding methods for ball materials, namely vibrating disk feeding, screw feeding and rotary valve feeding, but these three feeding methods have disadvantages, and the disadvantage of vibrating disk feeding is the amount of feed. Unstable, greatly affected by the diameter and shape of the ball; the balls in the screw feed and rotary valve feed are easy to be crushed into powder after being squeezed, and the fluidity becomes poor, causing the feed rotation mechanism to be stuck and the powder in the The shortcomings of poor flow in the rotary kiln and easy adhesion on the wall of the rotary kiln

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