Many underground mines in the coal area are gradually ‘greening’, applying modern technologies to help produce safer and more productive, towards the goal of sustainable development and green growth in Quang Ninh province.
The coal mining industry is one of the economic pillars of Quang Ninh province. In the deeper production conditions and higher production costs, coal industry units are focusing on promoting the application of “3 chemistry”: mechanization, automation, news chemical suit. 
“Green mines, modern mines, high yield mines” are important criteria set out in the resolution of the Quang Ninh Coal Party Congress for the term 2020-2025. Currently, many units have been actively applying technology to management and improving production capacity. 
At Ha Lam mine (Ha Long city) – where the mining is down to minus 300m, the “brain” of the mine is the centralized production operation center with CCTV system from the ground to the pit, control , centralized monitoring of conveyor systems, electricity, pump tunnels, wastewater monitoring, … communication connecting all construction sites and workshops to promptly handle possible situations. . 
Maximize application of mechanization to all stages of the production line, from 2015 up to now, Ha Lam Coal Joint Stock Company invested in operating two synchronous mechanized market furnaces, with a capacity of 600 thousand tons / year and 1 , 2 million tons / year, making coal production 3-5 times higher than the old market furnace technology. By 2020, the coal output of the mechanized market will reach more than 1.6 million tons, accounting for 70% of the total coal production of the unit. 
Mr. To Duc Vuong, Deputy Manager of Mining Mechanization Site 1 said: “Currently we use synchronous self-propelled systems from rigs, coal stage machines, rakes, conveyors, to replace very Many stages of operating the craft market kiln are as hard as before. Most of the workers are under 30 years old, grasping and learning technology very quickly and are given regular guidance and training “. 
Mechanization not only increases labor productivity by up to 130%, but also improves safety in the pit. “The increase in output means that the wages of workers also increase significantly. Our average monthly income is 25-26 million / month, effort is reduced a lot”, said furnace worker Hoang Anh Do. . 
Up to now, in Quang Ninh, there have been 10 marketplaces applying synchronous mechanization lines of 8 units of Vinacomin, Vinacomin, Vang Danh, Khe Cham, Mong Duong … Light mechanized market furnaces are also being studied and replicated to units with suitable conditions. 
Modern technology helps to dig deeper and reach further underground, the vast and expansive furnace lines are also equipped with automatic systems to provide circulating cooling water, ventilation, vacuuming, … 
Workers move in the pit by the winch, cable, and truck transport systems to the kiln long mining lines. Working conditions, healthcare, housing … have many great progresses. 
Over the past time, in the difficult context due to the impact of the Covid-19 epidemic, tens of thousands of mine workers have maintained a stable life, ensuring production, contributing to the positive economic growth results of the province. Quang Ninh. 
“Putting the park into the mine, the factory” is also the goal of TKV units. The coal mines are gradually building production according to a modern model, few people, high productivity, safety, harmony with the environment, in line with the trend of sustainable development of the mining industry and responsive requirements and goals for green growth that Quang Ninh province has set out.
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