Operation state control decision making method of mine ventilation system

Abstract

The invention discloses an operation state control decision making method of a mine ventilation system, and belongs to a mine ventilation control decision making method. The method comprises the following steps: (1) establishing or updating a current mine ventilation system model; (2) acquiring and updating ventilation system parameters in real time; (3) inspecting the rationality of the operation state of the ventilation system; (4) adjusting and solving ventilation network air volume in the case of a given mine total air volume when the operation state of the ventilation system is irrational, and adjusting and optimally solving the ventilation network air volume if a feasible solution is not available yet; (5) determining a fan matching working condition, performing air volume adjustment and solving for gradually expanding natural air distribution on an air network according to a maximum air pressure characteristic curve allowed by the fan, and finally determining an optimal executable scheme for air volume adjustment of the mine ventilation system. A mass flow and air density double-layer iteration method is adopted in the air volume adjustment and solving, and a sensor for monitoring underground air density can be saved. Technical support is provided for keeping rational, stable, reliable and high-efficiency operation of the mine ventilation system for a long time.

Description

technical field [0001] The invention relates to a coal mine ventilation control decision-making method, in particular to a mine ventilation system operation state control decision-making method. Background technique [0002] Mine ventilation system is to send the fresh air on the ground directly or after being processed by mechanical ventilation, and send it to the underground operation site through the air inlet shaft, dilute the dirty air in it, and then pass through the return air shaft directly or after air treatment Emissions to ground atmosphere. Its basic function is to provide clean air for people to breathe, dilute and eliminate harmful gases and dust generated in the production process, remove excess heat and humidity, and create a production environment suitable for human operation. Therefore, rational construction and management of a ventilation system is not only the basis for creating safe production and sanitary conditions, but also an important means to prev...

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Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a decision-making method for controlling the operating state of the mine ventilation system, which solves the problem of improper or negligent adjustment of the current mine ventilation, which affects the air flow adjustment work efficiency, and may cause failure of the ventilation system, which will bring adverse consequences to mine safety production

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