A ballast gas collection integrated structure for fly ash landfill

By incorporating a gas collection pipe and ballast block into the ton bag, the problem of difficult ballasting and gas collection and separation on fly ash landfill slopes was solved. This enabled simultaneous construction and efficient ballasting and gas collection, reducing costs and extending the reliability of membrane fixation.

CN224478435UActive Publication Date: 2026-07-10HUNAN JUNXIN ENVIRONMENTAL PROTECTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN JUNXIN ENVIRONMENTAL PROTECTION CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Fly ash landfills face difficulties in ballasting on slopes, have poor resistance to strong winds and heavy rains, low construction efficiency, and poor sealing and high costs due to the separation of ballast and gas collection systems.

Method used

A ballast gas collection integrated structure is designed, with a main pipe and branch pipes inside the gas collection pipe. The branch pipes collect gas, and the main pipe is connected to an external collection pipe. The ballast block is nested on top of the main pipe and fixed with an HDPE covering film to form a "pipe-solidified body" composite structure, realizing simultaneous landfilling, ballasting and gas collection.

Benefits of technology

The construction period is shortened by more than 30%, material costs are reduced by 25%, the ballast blocks are less prone to shifting, the fixing reliability of the HDPE cover film is improved, and the uniformity and sealing of gas collection are enhanced.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224478435U_ABST
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Abstract

The utility model discloses a ballast gas collection integrated structure for fly ash landfill, including the ton bag for loading fly ash, be equipped with the gas collecting pipe in the ton bag, the gas collecting pipe includes the main pipe and the branch pipe who interperpendicular intercommunication, the branch pipe sets up along the horizontal direction, and both ends of branch pipe all extend to the ton bag side portion outside to be used for collecting the gas that fly ash landfill body generates, the main pipe top extends to the ton bag top outside, and is connected with outside collection pipe, when ton bag top covers HDPE cover film, the main pipe top nests ballast block, ballast block is used for ballasting HDPE cover film. The utility model has compact structure, preparation convenient, high safety and high reliability etc. characteristics, has improved the efficiency of fly ash landfill, has avoided the disturbance of gas collection system secondary excavation to landfill.
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