Wear-resistant rotary feeder with labyrinth seal structures on rotor end surface

Abstract

The invention discloses a wear-resistant rotary feeder with labyrinth seal structures on a rotor end surface. The wear-resistant rotary feeder comprises a feed port, a discharge port, a housing and a rotor transversely arranged inside the housing, wherein end covers are arranged at both ends of the housing; the end covers are fixed on both sides of the housing through bolts; a wear-resistant coating is coated on the surface of the inner wall of the housing; the rotor comprises an impeller and a rotating shaft; the rotating shaft is arranged at the central part of the impeller; a wear-resistant layer is arranged at the contact excircle part of the impeller and material in a surfacing manner; the labyrinth seal structures are arranged at both ends of the impeller; and a wear-resistant layer is also arranged at the contact excircle part of each labyrinth seal structure and the material in a surfacing manner. The wear-resistant rotary feeder solves the problems that the rotor end surface is poor in sealing, the rotor end surface is serious in inverted ventilation, the wear resistance is poor, the service life is short and the material is easy to shear when an ordinary rotary feeder is used under wear working condition. The wear-resistant rotary feeder has the advantages of being good in blocking prevention, resistant to wear abrasion, resistant to medium pressure, and the like.

Description

technical field [0001] The invention relates to a rotary feeder, in particular to a wear-resistant rotary feeder with a labyrinth sealing structure on the rotor end face. Background technique [0002] Rotary feeder, also known as rotary valve or air lock, is a key technical equipment in the pneumatic conveying system, which can carry out uniform and quantitative delivery of materials. Usually the structure of the rotary feeder is composed of shell, end cover, impeller and other parts. When working, the impeller rotates in the cylindrical shell, and the material falls from the upper hopper into the blades set on the impeller by its own gravity. In the space, the material is discharged to the outlet provided at the lower part of the housing with the rotation of the impeller, and the lower part of the outlet is connected to the acceleration chamber. The falling material is mixed with the airflow in the acceleration chamber and sent to the pipeline under the action of pressure a...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a wear-resistant rotary feeder with a labyrinth seal structure on the end face of the rotor. This invention overcomes the poor sealing of the rotor end face, easy wear and short service life of the existing rotary feeder. , prone to the problem of anti-wind, it has the functions of anti-jamming, wear resistance, medium pressure resistance, etc.

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