A fiber dispersion device for polypropylene fiber concrete

By combining the alternating rotation of the rotating shaft and the dispersing rod with the vibration of the elastic rope, the problem of uneven fiber dispersion in existing devices is solved, achieving uniform dispersion of polypropylene fibers and improving the performance of concrete.

CN224464969UActive Publication Date: 2026-07-07BEIJING HUAIJIAN CONCRETE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING HUAIJIAN CONCRETE CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing polypropylene fiber dispersion devices have poor dispersion effects in non-intersection spaces, leading to severe fiber agglomeration and affecting concrete performance.

Method used

The design employs a rotating shaft, connecting rod, and dispersing rod rotating in an alternating manner, combined with the lifting and shaking of the elastic rope, to ensure uniform fiber dispersion through shearing and secondary dispersion.

Benefits of technology

This method achieves uniform dispersion of polypropylene fibers, avoids fiber agglomeration, and improves the flexural strength, crack resistance, and freeze-thaw resistance of concrete.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224464969U_ABST
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Abstract

The application belongs to the technical field of concrete production and discloses a fiber dispersion device for polypropylene fiber concrete, which comprises a dispersion box, a feeding port, a discharging port, rotating shafts, first connecting rods and second connecting rods which are circumferentially and intervally arranged at one end of the dispersion box, first dispersion rods and second dispersion rods which are intervally arranged at the adjacent sides of the first connecting rods and the second connecting rods, a strip-shaped hole which is formed in the lower side of the dispersion box, mounting seats which are arranged at the outer wall of the dispersion box and located at the two sides of the strip-shaped hole, a lifting plate which is vertically and slidably arranged on the two mounting seats, elastic ropes which are arranged between the lifting plate and the inner wall of the dispersion box which is opposite to the strip-shaped hole, and a driving assembly which is arranged on the outer wall of the dispersion box. The driving assembly drives the two rotating shafts to synchronously and reversely rotate, drives the first connecting rods and the second connecting rods to rotate, and drives the first dispersion rods and the second dispersion rods to staggeringly rotate to disperse the polypropylene fibers through shearing and scattering.
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