Open-pit coal mine introduces new technologies for environmental protection and dust prevention

As an open-pit coal mining production, Xinjiang Guanghui Coal Company invested tens of millions of yuan in the country to take the lead in the introduction of foreign advanced spray dust prevention technology, and gradually realize the parallel situation of economic and environmental protection.

On May 14, the author came to the Second Mining Area of ​​Baishihu Open-pit Coal Mine in Xinjiang Guanghui Coal Company located in Maohuhu Town, Yiwu County, Xinjiang. In the pit, the transport vehicles circled up the tunnel and did not raise much dust behind the car. Han Shifa, general manager of Xinjiang Guanghui Coal Industry Company, said that this year, the company purchased more than 40 sprinklers, used tunnel waste water and processed domestic water, and implemented 24 roads, workers' work, and on-site office areas where trucks were transported. Hours of continuous watering and sprinkling improved the effect of watering and dust reduction, effectively reducing dust pollution. “The most advanced environmental protection technology is applied to the crushing and screening stations. We have invested over tens of millions of yuan. We have pioneered the use of advanced technology for spray and dust prevention in the United States in open pit mines. After a preliminary experiment, the effect is obvious, and the dust reduction effect can reach 90%.” Han Shifa said.

At the crushing and screening station, the workers demonstrated on-site comparisons of the effects of using spray technology and not using spray technology. The author saw that when the spray technology was not used, vehicles dumping raw coal quickly set off coal dust. From time to time, workers who stood two meters away could not be seen clearly. After the sprinkler facility is started, sprays of different orientations installed on both sides will sprinkle water into the tunnels of the crushing and screening plant to reduce fly ash. According to reports, the mystery of this is mainly in the water to add a non-polluting agent, the increase agent has an adsorption force, can play a dust, dust, environmental protection effect. “In the past, the dust on the working platform in the mining area was 2 cm thick every day. The staff at each position could barely see each other, but they only coordinated by the intercom.” Han Shifa said that in recent years, the country has paid more and more attention to environmental protection. In order to take the lead, the company went out on several occasions to go out and look for equipment technology on the Internet. Last year, the company discovered that an American agent company in Tianjin has negotiated this technology and established an experimental site. On April 15 this year, the company invested 10 million yuan in one-time capital to introduce equipment and technology and completed it on May 1st. Initial identification and experimentation. “Nan Maohu has a lot of windy weather. If you calculate the daily production capacity from 40,000 tons to 50,000 tons, a hundred tons of coal will be blown away in a year. After the implementation of environmental protection technologies, the fly ash will be locked up and scattered. Pollution of the environment has also effectively reduced the loss of coal yards.Only one of these items can save more than 10,000 yuan per day. We must not only calculate economic accounts, but must also consider environmental protection and people’s livelihood accounts, and we cannot ignore environmental protection and workers for economic efficiency. Physical health problems," said Han Shifa.

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