Coal mining machine multilevel control method for intelligent fully mechanized coal mining face

A technology of fully mechanized mining face and control method, which is applied in mining equipment, mining equipment, earthwork drilling, etc., can solve the problems of alarm lag, unfavorable safe and efficient production of intelligent fully mechanized mining face, etc., and achieve the level of precise early warning and realize The effect of intrinsic safety

Inactive Publication Date: 2018-09-25
陕西陕煤黄陵矿业有限公司 +2
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Problems solved by technology

The alarm of this operation mode has hysteresis, which is extremely unfavorable to the safe and efficient production of intelligent fully mechanized mining face

Method used

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0034] The multi-stage control method of the intelligent fully mechanized mining face coal mining machine described in the present invention analyzes and establishes the coupling relational expression between the gas concentration of the upper corner and the return air channel and the traction speed of the shearer; the upper corner and the return The gas in the Fengshun tank is unified into one evaluation object, named "linkage control gas concentration"; the early warning value of the linkage control gas concentration is divided into five levels from high to low: red, orange, yellow, blue, and green, of which red is the alarm State, green is the safe state, and the other three levels are the early warning state; the traction speed of the shearer is divided into five levels from high to low: 4...

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Abstract

The invention provides a coal mining machine multilevel control method for an intelligent fully mechanized coal mining face. The method includes: setting a plurality of gas concentration thresholds according to danger levels, setting a plurality of early warning levels according to the gas concentration thresholds, and setting coal mining machine traction speeds in one-to-one correspondence to theearly warning levels; acquiring a gas concentration monitoring value in a monitored area at the current moment, and acquiring a gas concentration prediction value at a future moment according to thegas concentration monitoring value at the current moment, time series data and an ARMA model based time series data prediction method, wherein a time interval between the future moment and the currentmoment is 3-10min; judging a current early warning level according to a relationship between the gas concentration prediction value at the future moment and the gas concentration thresholds; settingthe coal mining machine traction speed at the current moment according to the current early warning level. By the coal mining machine multilevel control method, future dangers can be predicted in abnormality of gas concentration fluctuation in advance to bring alarm time ahead of schedule, and the coal mining machine traction speed is properly adjusted according to the danger levels.

Description

technical field [0001] The invention belongs to the technical field of intelligent fully mechanized coal mining face coal mining machine control, and relates to a multi-level control method for a coal mining machine in an intelligent fully mechanized mining face. Background technique [0002] The fully mechanized mining face is an important coal production site, and safety production management has always been a core issue. With the continuous development of coal mine automation technology, some mining areas represented by Huangling Mining have realized the intelligent production of fully mechanized mining face. Coupling with environmental parameters such as gas and roof pressure of the working face, the operator can grasp the operation status of the working face equipment at any time through the video screen of the working face in the monitoring center, and can remotely control the working face equipment through the remote operation console. [0003] As one of the importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/24E21F17/18
CPCE21C35/24E21F17/18
Inventor 范京道李川闫振国
Owner 陕西陕煤黄陵矿业有限公司
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