coal mineIt's one of the country's main sources of energy,It is also one of the important pillars of the national economy.At the same time, coal is also China's basic energy source, accounting for a proportion of the primary energy composition.70%left and right,“The proposal of the Eleventh Five-Year Plan further established the basic strategy of "coal-based and diversified development", which laid the foundation for the prosperous development of China's coal industry.Such an important energy source is naturally indispensable for its exploitation. Although with the continuous progress of science, the equipment for mining coal mines is becoming more and more excellent, but there is no escape from the safety problems of mining coal mines,coal mine safetyThe problem is always threatening the personal safety of underground miners.

In the coal mine underground in addition to always pay attention to the danger of coal mine collapse, but also pay attention to the life threat from the underground air, as we all know, not only coalBurningIt produces carbon monoxide, and the coal underground in the mine passes through.oxidationalso produces carbon monoxide, which belongsColorless and tastelessThe gas, and the molecular weight is small, can diffuse in the air, so light contact under the coal mine will appear.Headache, dizziness, palpitations, nauseaSymptoms such as those that disappear quickly after inhaling fresh air are general contact reactions.In addition, there aremild poisoning, moderate poisoning, severe poisoning，In recent years, due to carbon monoxide under the coal mineThere are not a few toxic safety accidents, and many coal mines are due to the lack of timely preparation and warning,No attentionThere was a life accident.

      2021Year1Month19Ruifeng Coal Mine, Dafang County, Bijie City, Guizhou Province11204Return air occurrence in transportation lanecarbon monoxide overrun poisoning accidentAfter preliminary investigation, go down the well on duty47People, safe well lift43people,4People lose contact.Why did this happen? What was the situation at the scene at that time? What was the final rescue situation? How can we avoid such a tragedy from happening again?

Cause of the accident and after:2021Year1Month19Day in the morning.7When20The Guizhou Coal Supervision Bureau received a report that Ruifeng Coal Mine, Dafang County, Bijie City, Guizhou Province.11204Carbon monoxide overrun occurs in return air of transportation laneAfter preliminary investigation, go down the well on duty47People, safe well lift43People.

After full rescue, all missing personnel2021Year1Month19Day12When44All search and rescue wells, including1Human vital signs tend to be stable, in the hospital treatment, the rest3The person has no vital signs. The on-site rescue work has been completed, and the relevant aftermath and accident investigation work are carried out in an orderly manner.

Isn't it sad that three fresh lives were lost in this way? This makes us reflect on why they didn't take safety measures in advance when the carbon monoxide exceeded the limit, so as to avoid such a tragedy, if there was carbon monoxide gas detection equipment, the tragedy is not possible.Avoiding!!!

The same thing in2020Year9Month27Such accidents also occurred in Chongqing coal mines in Japan:

A carbon monoxide overrun accident occurred in the early morning at Songzao Coal Mine, a subsidiary of Chongqing Nengtou Yu New Energy Company, resulting in17People are trapped. After the investigation, it was said that the belt was burning at that time, the underground carbon monoxide exceeded the limit, and finally the accident caused.16People die,accident or caused5000Direct economic losses to the 0.1 billion.

A bloody lesson!!!

Threat from carbon monoxide

How can we prevent the danger of carbon monoxide in a timely manner? Under the coal mine, the ventilation situation itself is not good, if the concentration of carbon monoxide is too high, then there is certainly no way to drop it for a while, if you take the risk of work, you will only lose your life in vain, in the coal mine to prevent carbon monoxide poisoning can only be detected by equipment to detect the air environment. The core components of commonly used carbon monoxide detection equipment areCarbon Monoxide Sensor, long-term underground work, for the detection of the concentration of carbon monoxide below must be accurate enough, which requires the carbon monoxide sensor

High sensitivity

good linearity

high resolution

Technology recommend carbon monoxide sensorCO-AM，Not onlyHigh sensitivity, good linearity, and high resolution, Can accurately detect underground coal mines in a short period of timeCOThe content.

    CO-AMThe carbon monoxide sensor is madeUnited KingdomAlphasenseR & DElectrochemical sensor without power consumptionThe concentration of carbon monoxide can be detected by driving the detection circuit. The sensor is small in size and can be made into a portable detection instrument, a fixed alarm instrument, or an alarm system, etc., which can be usedCoal mines, underground workplaces, alchemyWait. We can provide detailed reference circuits and sensor methods used.