Research On Ventilation & Gas Intensive Monitoring System For Small Coalmine

How to improve the serious situation of safety production in small coalmines is an urgent research topic. The application of Coalmine Safety Production Monitoring System to monitor the safety production situation can greatly reduce production accidents; but in terms of most small coalmines, the system doesn't bring much effect. So in recent years, some research institutes come up with a Small Coalmine Safety Production Monitoring System developed specially for small coalmines. However, it still can't solve small coalmines' existing problems of lacking technicians, poor management, low efficiency, etc.In fact, the individual monitoring mode is not efficient considering the present situation in small coalmines. Therefore, this dissertation puts forward a completely new monitoring mode — Intensive Monitoring & Managing Mode For Small Coalmines, and correspondingly, develops a Ventilation & Gas Intensive Monitoring System For Small Coalmine.The dissertation has done research work in the following aspects:1. Putting forward the Intensive Monitoring & Managing Mode For Small Coalmines.For a small coalmine, because of its limited production scale and capability, it feels difficult to do the overall safety production monitoring. As for the Intensive Monitoring & Managing Mode, it could unite all the small coalmines in the region in order to achieve the goal of safety production. The new mode proposes that all the coalmines share one set of monitoring system and the monitoring task is performed by a remote monitoring center. It forms a large network to direct and control the safety production in each coalmine involved and thus can well solve single coalmine's existing problem of low-level management, lacking monitoring technicians and the difficulty in maintaining and repairing equipments. It realizes the idea of Small Coalmine, Great Management and definitely will help bring about a big reform in small coalmines' safety production management system.2. Developing the Ventilation & Gas Intensive Monitoring System For Small Coalmine.In this system, unmanned intelligent substation and devices for displaying and alarming are put in individual coalmine. As the core of the system, the monitoring computer is put in the remote monitoring center and the technicians there are in charge of the total control of the safety production in all coalmines.The accuracy of the data obtained in each coalmine is one of the key problems to be solved in the new system. So the dissertation discusses the self-correction technology for gas sensor.