Intensive mine ventilation resistance measuring and calculating method

A technology for mine ventilation and ventilation resistance, which is applied to mine/tunnel ventilation, mining equipment, earth-moving drilling, etc. It can solve the problems of complex number of underground tunnels and the inability of monitoring data to cover all underground locations, and is conducive to intelligent regulation The effect of early warning, saving resources and avoiding cumbersome processes

Active Publication Date: 2017-08-22
CHINA UNIV OF MINING & TECH
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, there are a large number of coal mine underground roadways and the real situation is complex, and the monitoring data cannot cover all underground locations, and only some key locations can be monitored

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intensive mine ventilation resistance measuring and calculating method
  • Intensive mine ventilation resistance measuring and calculating method
  • Intensive mine ventilation resistance measuring and calculating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The present invention will be further described below in conjunction with the drawings.

[0042] Such as figure 1 As shown, an intensive mine ventilation resistance measurement method is to establish a ventilation resistance measurement subsystem with each independent roadway as the object, and arrange wind speed sensors reasonably. Air pressure sensors and differential pressure sensors 4 are arranged at the roadway nodes, and the short pipeline 2 The location is also the overlapping location of the long pipeline 1 and the short pipeline 2, which specifically includes the following steps:

[0043] Step 1: Establish a number of ventilation resistance measurement subsystems in the underground roadway with each independent roadway as the object, and select PVC steel wire hose as the pressure measurement pipeline 5 in the resistance measurement subsystem. The pressure measurement pipeline 5 is divided into long pipelines 1 and short pipeline 2;

[0044] Step 2: Make the undergro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An intensive mine ventilation resistance measuring and calculating method comprises the following steps that a plurality of ventilation resistance measuring subsystems are arranged in underground roadways, and wind speed sensors are reasonably arranged; two or more underground roadways which are connected in parallel share an initial node and a tail node, pitot tubes and pressure difference sensors are arranged at the initial node and the tail node of the roadways, and the sharp ends of the pitot tubes are perpendicular to the cross sections of the roadways and right face the wind flow direction; long pipelines and short pipelines are arranged fixedly along the waist lines of the inner walls of the roadways; the wind outlet ends of the long pipelines and the wind outlet ends of the short pipelines are connected with two measurement connectors of the pressure difference sensors correspondingly, and then the ventilation resistance hi of the roadways can be obtained; the ventilation resistance h of a mine is calculated; and the wind resistance Ri of each roadway is calculated. The method can save resources needed by measurement of mine ventilation resistance with an existing differential pressure gauge method, can avoid measurement errors caused by human factors, can achieve high-precision mine ventilation network online resolution and facilitates intelligent adjustment and control and advanced alarm of a mine ventilation system.

Description

Technical field [0001] The invention relates to the field of mine ventilation and safety, in particular to a method for measuring and calculating intensive mine ventilation resistance. Background technique [0002] At present, there are two methods commonly used to determine mine ventilation resistance: barometer method and differential pressure meter method. Compared with the two methods, the measurement accuracy of the barometer method is lower, resulting in greater error in the measurement results; the differential pressure meter method is difficult to measure and is not suitable for large-scale measurement of all minerals. Either way, a certain number of professional and technical personnel are required to conduct manual survey-style surveys on the entire mine. The calculation of the wind network of mine ventilation has been developed to be realized by computer programming, such as the mine ventilation simulation software (Ventilation Simulation Expert). It can be seen that...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/02
CPCE21F1/02
Inventor 魏连江周福宝夏同强胡建坤
Owner CHINA UNIV OF MINING & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap