Ventilation system of multi-stage machine station in mine

Abstract

The invention discloses a multi-stage station ventilation technical system of a mine. A level-I station (1) is arranged in a main air inlet alley; a level-II station (2) is arranged in an air inlet courtyard connection ally; a level-III station (3) is arranged in an air return courtyard connection ally; a level-IV station (4) is arranged in a main air return ally; a plurality of stages (more than or equal to 3) of the stations are connected in series and in parallel; ventilation stations of the same state are connected in parallel; different stages of stations are connected in series; a plurality of fans are connected in series and in parallel in the ventilation stations; the number of stages and the positions of the stations are determined; the types of the fans are selected, and the air volumes of the fans are adjusted; a mine ground main monitoring room (12) is arranged on the ground of the mine; and a multi-stage station remote concentrated monitoring system and an underwell atmosphere environment on-line monitoring system are constructed. Constant-pressure ventilation of each ventilation network section of the mine can be realized, and air leakage is reduced; a plurality of stages of underwell stations can be started and stopped remotely; the frequencies and speeds of the fans can be converted and adjusted, and system air return is realized; parameters such as running states of the fans, air volume and air pressure of the fans, temperature of a motor bearing and power factors are monitored in real time; and an underwell ventilation environment can be monitored in real time and on line.

Description

technical field [0001] The invention relates to an underground mine ventilation technology, in particular to a multi-stage machine station ventilation system technology, which can be widely used in underground mine ventilation systems. Background technique [0002] Mine multi-level machine station ventilation technology is to use the principle of wind pressure balance to implement pressure equalization ventilation on the mine ventilation system. Regulating (starting and stopping of fan, fan running speed), to achieve the balance of wind pressure in each branch air path, the wind pressure at the two ends of each leakage air path is equal, that is, the external air leakage point keeps the differential pressure at zero, and the internal air leakage point keeps the wind pressure equal . [0003] Compared with the large main fan ventilation system, the multi-stage machine station ventilation system can make the ventilation pressure evenly distributed, reduce the air leakage, inc...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems existing in the prior art, such as determination of machine station levels and positions, ventilation resistance calculation, air volume distribution, fan type selection and multi-machine station multi-fan management, and to provide a machine that can realize various Mine multi-stage machine station ventilation system with equal pressure ventilation, air flow control and adjustment in the ventilation network section, high effective air volume rate, strong predictability of ventilation effect, and low ventilation energy consumption

Images