一种基于主动剪切流场与磁场协同的钢纤维混凝土连续定向装置及方法

By using a device that coordinates active shear flow field and magnetic field, a shear flow field is formed by a tapered channel and conveyor belt for pre-dispersion and pre-arrangement. Combined with an electromagnetic orientation module for precise orientation, the problem of high energy consumption and poor orientation effect in the existing technology is solved, and low-energy, high-precision continuous production is realized.

CN122143193BActive Publication Date: 2026-07-17XIANGTAN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIANGTAN UNIV
Filing Date
2026-05-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing steel fiber reinforced concrete directional technology suffers from high energy consumption, discontinuity, and poor directional effect, making it difficult to achieve low-energy, high-precision continuous production.

Method used

The device employs a combination of active shear flow field and magnetic field. It uses a tapered channel module and a conveyor belt to form a shear flow field for pre-dispersion and pre-arrangement. Combined with an electromagnetic orientation module, it applies a parallel magnetic field in a constant channel for precise orientation. An integrated control system is used to adjust the conveyor belt speed, vibration frequency, and magnetic field strength to adapt to different concrete fluidity.

Benefits of technology

It achieves low-energy consumption and high-precision steel fiber orientation, is suitable for continuous production, reduces equipment heat generation and operating costs, and improves the uniform distribution and orientation effect of fibers in concrete.

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Abstract

本发明公开了一种基于主动剪切流场与磁场协同的钢纤维混凝土连续定向装置及方法,属于钢纤维混凝土定向技术领域。装置包括机架、独立驱动的第一、第二传送带且第二传送带速度小于第一传送带、进料单元、渐缩通道模块、振动装置、电磁定向模块及过渡连接板。渐缩通道模块与第一传送带构成横截面线性缩小的第一封闭通道,产生剪切流场对钢纤维预分散预排列;电磁定向模块与第二传送带构成横截面恒定的第二封闭通道,并产生平行输送方向的均匀磁场,对预排列纤维精确定向;过渡连接板实现平稳转移。集成控制系统根据混凝土扩展度或T500时间调节工艺参数。本发明实现了低能耗、高精度、连续化的钢纤维定向,适用于不同流动性混凝土。
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