A gift to the Year of the Tiger! Three Three Three Industrial Mining TBM Datong Wangcun Coal Project Successfully Completed!

Release time:

2022-01-24


 

In the middle of winter, the silver-clad coal is Datong, and good news comes from thousands of meters underground to present a good news to the New Year of the Tiger!
On January 20, 2022, Jinneng Holding Group Datong Wangcun Coal Industry Company's return air lane tunneling project in Xipan District, Shan 4, completed the 3780-meter diameter mining TBM -- "Zhenxing No.1" independently developed and manufactured by Sanshan Industry, and successfully reached the shutdown position, marking the successful completion of the return air lane project in Xipan District, Datong Wangcun Coal Industry!
 
 
 
 

"Revitalization One"

Overcome the complex geological conditions

 

The construction environment of "Zhenxing No.1" is complex, and it tenaciously passes through the harsh geological conditions such as sandstone, fault, fracture zone, water bearing zone, high ground pressure and so on. During tunneling, the project passes through three fault fracture zones with a maximum drop of 17 meters. When TBM passes through the fault, serious roof and two sides collapse occurs, and the surrounding rock is abnormally broken and collapses at one touch.

 

 

"Revitalization One"

Set a new record for coal mine roadway excavation

 

The tunneling, attitude control, slag discharge, support, dust removal, and wear resistance of the cutter head of "Zhenxing No.1" have all withstood the test, and the tunnel formation is stable and beautiful. The average tunneling speed is 35-45 mm/min. Under the condition that the daily actual working time is less than 12 hours except for the maintenance time of large belts, and only the evening shift and single shift tunneling can be carried out, the high-level achievements of the highest daily tunneling speed of 20 meters and the highest monthly tunneling speed of 406 meters are achieved. Compared with the traditional drilling and blasting method, the tunneling efficiency is improved by 6-8 times.

 

"Revitalization One"

Created the fastest installed record

 

From the preliminary demonstration, determination of the design scheme, processing and manufacturing to the completion of on-site installation and commissioning, it takes only 70 days, which is nearly 5 months less than other domestic manufacturers.

 

 

"Revitalization One"

Changed the construction method

 

"Zhenxing No.1" is specially designed for the construction environment and requirements of underground coal mine roadways. It uses a full-section cutter head to break rock into roadways at one time, completely changing the problems of high energy consumption and low construction speed of the traditional manual drilling and blasting method in the construction of whole rock roadways. With a brand-new construction method, it meets the requirements of safety, environmental protection and speed in coal mine construction. "Zhenxing No.1" integrates the functions of tunneling, slag discharge, support, dust prevention, ventilation, guidance, explosion-proof, advanced drilling, data acquisition, ground monitoring and other functions, realizing parallel operation of tunneling, support, slag discharge and other construction processes, and can adapt to the excavation of soft rock, hard rock, soft and hard staggered and other strata. Cutterhead and cutting tool layout science, excellent material selection, adapt to complex geological conditions and long-distance tunneling, the average monthly footage of 600-800 meters, the highest monthly footage can reach more than 1000 meters.

 

 

"Revitalization One"

Leading the trend of technology

 

On December 1, 2020, an evaluation meeting on the scientific and technological achievements of coal mine complex formation full-section intelligent excavation technology and equipment research was held in Datong, Shanxi Province. The meeting was presided over by Academician Zhang Tiegang, and an expert group composed of experts from domestic head energy groups, professors from established coal colleges and universities, and experts from equipment users conducted serious and rigorous comments. After inquiries, exchanges, and concentrated discussions by the expert group, they unanimously reached the following conclusions: The scientific and technological achievements of the full-section intelligent tunneling technology and equipment research in the complex formations of the Sansan Industrial Coal Mine have reached the international leading level.

 

 

Mining TBM

Have broad market prospects

 

China's energy situation and pattern determine that coal is still the main body of the energy structure (accounting for 74%). Under the background of double carbon, coal mines are currently facing a blowout development, that is, before the carbon peak in 2030, the coal production capacity must reach the peak first. Especially under the background of the current Australian coal outage, Indonesian coal embargo and regional power cuts, the development of domestic coal mines is facing great opportunities. There are more than 5300 coal mines in the country. The current development of coal mines is facing the dilemma of "digging behind mining". The development of coal mine roadways lags far behind coal mining. This is due to the particularity of coal mine strata and the backwardness of tunneling technology. The ultimate equipment to solve the problem of coal mine roadway development is the coal mine roadway boring machine. There are a total of 200000 non-coal mines (including metal mines) in the country. These mines have three serious problems, namely, safety, environmental protection and efficiency. The fundamental way to solve these problems is still the need for mine roadheader.

 

 

In the future, China's coal mine construction field will focus on the construction of large mines, inclined shaft, vertical shaft construction is an important means to improve the coal production capacity of mining areas, the need for long-distance, large slope coal mine inclined shaft dual-mode TBM roadheader. The depth of the deep coal seam has reached more than 1000 meters, and the excavation formation is complex and the geological conditions are changeable, which brings unlimited business opportunities for the coal roadway tunneling shield machine. The intelligent tunneling equipment represented by the shield machine implements the guiding ideology for the development of the coal machine industry and meets the requirements of the high-quality development of the coal industry in the new era. It can be "green, digital, information, and intelligent" for coal and non-coal mines and metal mines. The development of "provides important equipment support, while bringing social benefits of safety, efficiency, energy saving and environmental protection.
 

 

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