Today,Green and low-carbon development has become synonymous with enterprise development,And the 1xbet apps accompanying the coal body,If there is no effective governance,It may be a stumbling block to efficient production。In recent years,Yuwu Coal Industry Company insists on treating both the symptoms and the root causes,Strengthening the exchange of management space for extraction time,The advanced management concept of exchanging extraction time for production space,Adopt advanced 1xbet apps control technologies and methods,Promote 1xbet apps control,Becoming a leader in 1xbet apps control in the industry,And a set of three-dimensional 1xbet apps management model with Yuwu characteristics has been formed,Achieved the goal of making 1xbet apps no longer "willful"。
2023,According to the overall deployment of the group,The company officially assumes the important task of building a "1xbet apps control technology application demonstration base"。As the main unit,In order to fully demonstrate its advanced and applicable technologies in the field of 1xbet apps control,Promote technological progress in the industry,Promoting national energy security and environmental protection,The company relies on its rich technical experience,In three production well areas,Complete 1xbet apps utilization facilities have been built,Including 1xbet apps pumping station and 1xbet apps power station,Equipped with 36 generator sets in total,Total installed capacity up to 23.2MW,Daily power generation 30 kWh。In addition,The company also built an advanced ventilated air oxidation station in Beifengjingjing District,Utilizing three RTO ventilated air oxidation devices,Effectively handle low negative pressure 1xbet apps,The formation of "high negative pressure 1xbet apps drainage for power generation,Diversified 1xbet apps utilization model of low negative pressure 1xbet apps extraction and ventilated air oxidation,Not only has it won an annual 1xbet apps utilization subsidy of 8 million yuan for enterprises,Also achieved 640,000 tons of carbon emission reduction,Making positive contributions to the country’s green and low-carbon development。
The company fully realizes,No advanced 1xbet apps management concepts,It is impossible to ensure the high-quality development of enterprises。How to realize the transformation of 1xbet apps control from "passive" to "active",Strive to overcome the hard issues of 1xbet apps control?The company first pre-pumped from the surface well area,Drain 1xbet apps in the area to be mined in advance,Ensure efficient 1xbet apps management。Currently,There are 168 independent surface extraction wells within the well field,The average 1xbet apps production per well is about 350 cubic meters。
Early before 2018,This company uses activated water for surface drilling and fracturing、Nitrogen foam,Sand injection fracturing process was then fully applied,Fracturing a well requires 800 cubic meters of water and 50 cubic meters of sand;2023,The first test of large liquid volume in Yuxin Fengjing、Large sand volume fracturing,Increase water volume to 2000 cubic meters、The amount of sand added is increased to 200 cubic meters。2019,The company innovatively tested the first U-shaped well,Composed of a straight well and an L-shaped well,The horizontal section is 800m long,The final hole layer is 2m-3m above the coal seam roof,Perforation and fracturing in 10 stages,Maximum daily 1xbet apps production 9200 cubic meters。
Underground,The company has a working face with adjacent tunnel pre-extraction through the excavation working face,Advanced pre-extraction of adjacent tunnel drilling,Carry out hierarchical treatment of adjacent lanes that do not meet the pre-extraction conditions,According to the amount of 1xbet apps emission in the tunnel, the measures of pumping while digging + release holes + CO2 1xbet apps phase fracturing are adopted in sequence。2020,The company has also made technological innovations in pre-extraction of the tunnel face area,Use a thousand-meter drilling rig to construct branch holes in advance,Strip pre-extraction of high 1xbet apps coal tunnel,Place the main hole on the bottom plate or top plate,Open branches into the coal seam for pre-pumping。
In view of the continuous extension of the mine to the west,The actual situation of increasing burial depth,The company promotes the concept of “protecting coal with rock”,Using rock tunnel space to control coal seam 1xbet apps。Through the implementation of bottom tunnel and layer pre-extraction,Constructing bottom tunnel 10 meters below the coal floor,Multi-purpose for one lane in the mining area,A group of 5-meter grid layout for through-layer drilling,And cooperate with hydraulic punching for anti-reflection extraction,Initial stage of extraction,The average monthly 1xbet apps content decreased by 1 cubic meter,In the mining process,The company adopts bedding drilling for drainage,All adopt the two-blocking and one-injection sealing process,Gradually test "three blocks and two notes";At the same time,Promote the application of hydraulic cave creation、Mechanical cavitation and CO2 fracturing and anti-reflection measures,Greatly shortened the 1xbet apps pre-extraction time at the working surface。
While achieving results in 1xbet apps control,The company also strengthens the scientific exploration and management of working surface ventilation methods,U-shaped ventilation working surface for 1xbet apps control in the upper corner,They used end-to-end plugging + upper corner buried pipe drainage。Currently,The ventilation method of the working surface is gradually transitioning from "single U + high ventilation" to "Y + high ventilation",Eliminate corners on the working surface,The main method is to retain Y-shaped ventilation technology along the gorge,Two air inlet lanes,A return air alley,Cooperate with flexible mold wall buried pipes to drain goaf 1xbet apps,Not only improves the production working environment,It also effectively solved the problem of 1xbet apps exceeding the limit in the corners of the working surface,Ensuring safe and efficient mining at the working face。
(Text by Liu Mingxing and Wang Shaobo)
Editor: Li Shichen