Multistage dynamic composite vibration excitation solid waste roadbed filler processing device and method

The multi-stage dynamic composite vibration treatment device solves the problem of uneven mixing of lightweight EPS particles with other materials, achieving high-quality treatment of roadbed filler and improving the stability and bearing capacity of the roadbed.

CN120700757BActive Publication Date: 2026-05-26SHANDONG EXPRESSWAY INFRASTRUCTURE CONSTR CO LTD +1
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Patent Information

Application Number
CN202511032399.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2026-05-26
Estimated Expiration
2045-07-25

AI Technical Summary

Technical Problem

Existing mixing devices cannot effectively solve the problem of uneven mixing of lightweight EPS particles with other materials, resulting in large differences in the performance of roadbed fillers, affecting the stability and bearing capacity of the roadbed. At the same time, incomplete pretreatment leads to poor filler quality.

Method used

A multi-stage dynamic composite vibration treatment device is adopted, including a pretreatment unit, a metering unit, and a mixing unit. Through the coordinated work of screening, crushing, metering, and stirring devices, a three-dimensional shear flow field and vertical convection circulation are formed to ensure uniform mixing of materials.

Benefits of technology

It improves the mixing uniformity and stability of roadbed filler, reduces the floating rate of EPS particles, enhances material adaptability, and improves the overall quality and processing efficiency of filler.

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Abstract

This invention discloses a multi-stage dynamic composite excitation solid waste roadbed filler treatment device and method, relating to the field of solid waste resource utilization technology. The device includes a pretreatment unit, a metering unit, a mixing unit, and a control unit. The pretreatment unit processes carbide slag, silica fume, excavated soil, and EPS particles, addressing issues such as incomplete agglomeration, incomplete removal of oversized particles, and ungraded EPS particles. In the mixing unit, a first and second stirring shaft are vertically distributed to form a three-dimensional shear flow field, and the material lifting device forms a vertical convection circulation, effectively solving the problem of uneven mixing caused by the low density and easy floating of EPS particles. The control unit enables coordinated control of all units. This device and method can improve the mixing uniformity of solid waste roadbed filler, reduce strength fluctuations, meet the quality requirements of engineering for roadbed filler, and promote the resource utilization of solid waste.
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Citation Information

Patent Citations

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