Debris flow discharge channel

By introducing a separating screen and an energy dissipation ridge structure into the debris flow drainage channel, the shortcomings of the debris flow drainage channel in energy dissipation and particulate matter separation are solved, the equipment life is extended and the maintenance cost is reduced, and a way to reuse particulate matter is provided.

CN224468526UActive Publication Date: 2026-07-07GEOLOGICAL & NATURAL DISASTER PREVENTION & CONTROL INST GANSU ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GEOLOGICAL & NATURAL DISASTER PREVENTION & CONTROL INST GANSU ACADEMY OF SCI
Filing Date
2025-08-18
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing debris flow drainage channels have limited energy dissipation capabilities, short service life, and difficulty in effectively separating coarse and fine particles, resulting in severe equipment damage and high maintenance costs.

Method used

A debris flow drainage channel was designed, comprising a main channel, a detachable separating screen, a primary energy dissipation ridge, a separating screen, a buffer channel, and a sedimentation zone. The separating screen separates coarse and fine particles, and the energy dissipation ridge reduces the impact force and extends the equipment life.

Benefits of technology

It achieves effective separation of coarse and fine particles, reduces equipment damage, extends service life, lowers maintenance costs, and provides a way to reuse particulate matter.

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Abstract

A debris flow discharge channel, comprising: a main channel through which the debris flow passes; a separation screen detachably connected to the main channel, the separation screen separating the main channel into an upper discharge channel and a lower discharge channel; a first accumulation area in communication with the upper discharge channel; a buffer channel in communication with the lower discharge channel, the buffer channel being provided with transverse energy dissipation ridges and longitudinal flow guide ridges; and a second accumulation area provided behind the buffer channel. The separation screen separates coarse and fine particles, which, in terms of service life, prevents the downstream discharge channel from being damaged by the huge impact force of coarse particles or being blocked by the accumulation, effectively prolongs the service life of the discharge channel, and, in terms of later maintenance, the separation of coarse and fine particles facilitates the maintenance and repair of the downstream main channel, thereby effectively reducing the maintenance cost in the later period.
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