Work

Acoustic Detection of Pipeline Blockages in Gas Extraction Systems: A Novel Approach

Year: 2024

Type: article

Abstract: Gas extraction is crucial for coal mine safety, yet pipeline blockages by solid slag and water severely hinder efficiency and pose risks. Traditional detection methods are limited by rapid signal attenuation and noise interference. In this study, an acoustic detection technology is introduced for pipeline blockages, utilizing sensors at potential blockage points to collect sound wave data. Experiments with a scaled pipeline model reveal that slag blockages produce characteristic peaks in the 1200 Hz–2000 Hz range, while water blockages show peaks in the 1 kHz–2 kHz and 3.5 kHz–4.5 kHz bands. The longitudinal blockage intensity and extraction pressure significantly affect the sound pressure levels. A reliable fitting model predicts the blockage intensity based on acoustic signals, achieving high accuracy. This novel method enhances blockage identification, offering a non-invasive, cost-effective solution that improves coal mine safety and efficiency.

Source: Energies

DOI: 10.3390/en17194875

Authors: Chun Liu, Zhongyi Man, Wenlong Li

Institutions: China University of Mining and Technology, Qingdao University of Science and Technology

Language: English

Topic: Mining and Industrial Processes

Subfield: Food Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,955