Construction waste crushing device for construction

By incorporating a steel bar discharge assembly, including a bending discharge assembly and an adsorption discharge assembly, into the crushing device, the problem of long steel bars being unable to be discharged from the crusher is solved, achieving effective separation of steel bars from concrete and smooth discharge, thus improving recycling efficiency.

CN122298564APending Publication Date: 2026-06-30CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA CONSTR SECOND ENG BUREAU LTD
Filing Date
2026-05-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

When existing crushers separate reinforced concrete waste, longer steel bars cannot be discharged from the crusher, affecting normal operation.

Method used

A construction waste crushing device for building construction was designed. It includes a steel bar discharge component, which consists of a bending discharge component and an adsorption discharge component. The bending discharge component bends longer steel bars to reduce their length using bending rollers and movable bending parts. The adsorption discharge component separates smaller steel bars from concrete using magnetic adsorption components.

Benefits of technology

It enables the smooth discharge of longer steel bars and the separation of concrete from steel bars, improving the convenience and efficiency of steel bar recycling.

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Abstract

This invention discloses a construction waste crushing device for building construction, specifically relating to the field of construction waste crushing. The device includes a crushing apparatus, characterized in that a steel bar discharge assembly is provided at the bottom of the crushing apparatus. This assembly comprises a bending discharge assembly and an adsorption discharge assembly. The bending discharge assembly includes a support shell fixedly connected to the bottom of the crushing apparatus. A connecting shaft is rotatably connected to the inner wall of the support shell. A drive motor is fixedly connected to one side of the support shell. The connecting shaft is fixedly connected to the output end of the drive motor. Both ends of the connecting shaft are fixedly connected to transmission connecting cylinders, and one end of each transmission connecting cylinder is slidably connected to a connecting inner rod. This invention, by setting up the steel bar discharge assembly, processes the separated steel bars, allowing longer steel bars to be bent and shortened from the crushing apparatus for discharge. It also separates concrete and steel bars for further processing.
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