一种煤矿瓦斯浓度超前预测与自适应调速控制方法

By constructing a gas concentration prediction model that integrates spatiotemporal features and a dynamic cloud map, and combining it with a multi-objective optimization algorithm, the problems of low prediction accuracy and insufficient collaborative optimization in coal mine gas concentration were solved, and adaptive speed control of coal mining machines was realized, thereby improving the safety and production efficiency of coal mining.

CN122407285APending Publication Date: 2026-07-17XIAN UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN UNIV OF SCI & TECH
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the accuracy of coal mine gas concentration prediction is not high, and there is a lack of collaborative optimization based on multi-dimensional information. This results in the coal mining machine speed operating independently from the extraction and ventilation systems, making it impossible to accurately predict risks and affecting production efficiency and safety.

Method used

By constructing a gas concentration prediction model that integrates spatiotemporal characteristics, combining dynamic gas concentration cloud maps and gas accumulation velocity vectors, risk zones are divided, segmented speed strategies are formulated, and a multi-objective optimization algorithm is used to generate a coal mining machine speed-position look-ahead control curve to achieve adaptive speed regulation control.

Benefits of technology

It has achieved dynamic quantification and spatial positioning of gas risk, improved the coordinated control of coal mining machine speed and gas migration, and significantly improved the safety and economic benefits of coal mining.

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Abstract

本发明公开了一种煤矿瓦斯浓度超前预测与自适应调速控制方法,包括:对工作面关键点位瓦斯浓度及多源参数实时采集,构建动态数据库;对数据进行预处理及特征筛选,生成预测数据集;基于时序分解与GCNGRU模型输出瓦斯浓度预测值,进而构建动态瓦斯浓度云图,计算瓦斯聚集速度矢量并生成逼近度指标;根据预测值计算分级预警指标并判定预警等级;基于动态云图、速度矢量、逼近度指标及预警等级,将采煤机前方路径划分为多个风险区段,制定分段速度策略,生成速度位置前瞻控制曲线并执行调控,并根据调控效果对模型及参数迭代优化。本发明实现了瓦斯浓度的超前精准预测与采煤机速度的自适应协同调控,在保障安全的前提下最大化采煤效率。
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