“There is no need to climb up to seal the upper corner of the inlet and return air of the fully mechanized coal mine，The wind flow adjustment of the double-lane excavation working face has been speeded up and upgraded..."
Recently，Hanjiawan Coal Company has equipped the underground mining working face with an air bag type rapid sealing device，Received unanimous praise from front-line mining workers。
Previous，When the entry and return wind corners of the fully mechanized mining face need to be blocked，All are built with sandbags，The amount of sand is larger、Heavy workload，And employees are required to work at height，There is a security risk。During double-lane excavation of the excavation working face，After the entry and return air contact lane m88 casino reviewis connected，To prevent wind short circuit，Adopt measures to build temporary wind barriers，But the wind barrier has poor plasticity，There is a phenomenon of air leakage in the tunnel due to deformation due to wind pressure，Easy to cause ventilation system disorder。
For this，Hanjiawan Coal Company arranges professional and technical personnel to go out for benchmarking、Technical exchange，Introduced "YHQM air bag type rapid sealing device" for mining working faces。
The airbag device is made of flame retardant、Anti-static material composition，Contains support frame，Comply with the provisions of "General Experimental Methods and Determination Rules for Flame Retardant and Antistatic Properties of Polymer Products Used in Underground Coal Mines"，Light weight、Easy to carry，Simple and quick operation，Can directly use underground air pressure system to inflate。Inflation time only takes 5-10 minutes，Maintain no leakage for more than 360h after inflation，Sealed and sturdy construction、persistent，Good blocking effect，Low air leakage rate，And no wearing and consumable parts，Can be used repeatedly。
“Easy to operate，The effect is good，Working becomes more worry-free，We all M88 loginaffectionately call it ‘Pink Dun Dun’。" Li Hongqing, leader of the electromechanical maintenance team of the continuous mining team, praised。
Due to the device’s strong adaptability to the shape of the tunnel，Can be big or small，Full of plasticity and versatility，Available in different cross-sectional shapes、Used in tunnels with different bracket forms，has become a major "sharp weapon" for the company's rescue squadron in emergency rescue work。This device can be used in complex underground tunnel environments with pipelines，Used for underground gas treatment、Isolation of carbon monoxide and dust，It can also prevent flying gangue，Promote the daily practice and combat readiness of ambulance team members。
As understood，After the device is put into operation，Enclosed construction efficiency increased by 60%，Wind flow blocking efficiency is 3 to 5 times higher than temporary wind barriers，Saving costs about 350,000 yuan。While improving the efficiency of front-line mining workers，Increased work site safety factor，Effectively promotes safe production in mines。(Author: Li Jintao Editor: Wang Yu)