Strengthening production technology management is the prerequisite for achieving safe production in coal mines。Since this year，North Shaanxi Mining Company takes disaster management in advance as its premise，Based on production continuity，Scientific production scheduling、Standardized production is a guarantee，Breakthrough through technological transformation and innovation，Strengthen target、Problem and effect orientation，Systematic、Promote production technology management work in a standardized manner，8 major businesses, 40 key tasks, and 84 pragmatic measures are M88 appfully implemented，Press the Endeavor "fast forward button"，Sounding the “March” of Development。
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Fully implement the requirements and spirit of superior coal supply guarantee，Practice the basic work。Following the "1+3" operating mode，Establish a production technology standard management system and a lean mining technology system，Convene regular production technology meetings，Solidly carry out the work of "three excellences and two improvements" in tunnels，Arrange production and continuity in advance，And organized and carried out "epidemic prevention、Stable and safe、Safe supply” labor competition。Small coal pillar mining，Small coal pillar mining、Extra long working face mining、Incline cutting and tilting mining and other technologies are fully promoted and applied in our two mines，Four “one excellent and three reduced” projects and two key mining continuity projects were completed as planned，Output completed 59% of full-year plan，Completed 69% of the full-year plan，Complete supply guarantee target on schedule。
Continuously strengthen the "one communication and three defenses" work，Optimize ventilation system。Completed the optimization of the return air tunnel expansion in the southern part of Sunjiacha 2-2 coal mine，Effectively reduce ventilation resistance，Complete the tunnel excavation of the dedicated air inlet and return tunnel for the 102 panel area，Achieve zoned ventilation。Further strengthen fire prevention and extinguishing management，In accordance with the requirements of the "Provincial Coal Mine Major Disaster Risk Expert Consultation and Supervision Implementation Plan"，Carry out self-examination and self-correction on mine fire prevention and extinguishing。Sunjiacha Longhua Mining Company completed the spontaneous combustion tendency of coal seam、The shortest firing period、Determination of spontaneous ignition index gases and critical values；Hanjiawan Coal Company’s fire prevention and extinguishing requirements in accordance with one-by-one measures，Special coal mining technology for 214202 fully mechanized mining face，Customized fire prevention and fire extinguishing safety technical measures，Effectively eliminates air leakage and spontaneous combustion during lane reuse。
Steady production safety work
Build a four-in-one operation and management model of “target responsibility + management assessment + on-site implementation + innovative development”，Established an operation assessment system of “on-site + in-house + management”，Promote hierarchical control of the management system (leadership、Department、District team、Position)，Compacting responsibility layer by layer，With safety production responsibility system、On-site standard management is the core work，Continuously push the safety barrier forward，Give full play to the role of the "key minority" in setting an example，True realization of standardization of safety production management。Strengthen benchmarking learning，Established an internal safety production standardization acceptance expert team，Carry out safety production standardization experience exchange symposium，And invite experts in the industry to carry out special guidance and training on safety production standardization management system。Further improve site management，Taking job operation process and on-site management as the entry point，Taking the engineering quality and working environment of the mining face as the starting point，Open with tunnel、Initial mining of through-through and fully-mechanized mining faces、Special periods such as the end of harvest are the focus，Solid implementation of standardized on-site control，The standardization “demonstration projects” of the two mines were completed as scheduled。
In accordance with the working idea of "one super, three governance and three improvement" and "forecast exploration、Comprehensive Management、Effect verification、Safety Assessment" working mechanism，Comprehensive implementation of annual key water prevention and control projects，Study and determine technical plans for ground re-examination and disaster management、Special engineering design，Make clear mine geological exploration。Organize and carry out special self-examination on water prevention and control，Compare with the new production safety law and other regulations，Revised professional and technical management system。Continue to strengthen forecasting and advance prevention and control of geological disasters，M88 appCarry out various key projects in an orderly manner。Small coal pillar mining，Hanjiawan completed ground geophysical survey 2.8Km2，Excavation advanced geophysical exploration 5400m，Advanced drilling 32520m，Roof geophysical survey of fully mechanized mining working face 0.66Km2，Roof water drainage drilling 2448m；Sunjiacha Longhua completed ground geophysical exploration 3.46Km2，Advanced geophysical exploration of excavation 6236m，Advanced drilling 8335m，Roof geophysical exploration of fully mechanized mining working face 1.4Km2，Roof water drainage drilling 3377m，Gutter management 28423m2，Key disaster management projects in the two mines were completed as planned，Provides solid geological guarantee for safe production in mines。
Scientific and technological innovation work is done well
Follow "Smart Mine、Smart Mining Area、The goal of building a first-class enterprise，Follow the principle of “practical + cutting-edge”，Formulate the "Special Class Arrangement for Scientific and Technological Innovation Work in 2022"，Clarified the responsibilities of scientific and technological innovation、Plan、Missions and goals，A practical scientific and technological work assessment system has been formed。Focus on the implementation of scientific research projects，Accelerate the promotion and application of "four new" technologies。Small coal pillar mining，23 scientific research projects are fully advanced as planned，Small coal pillar technology、Intelligent Quick Digging、Seven new technologies including smart ventilation have been fully promoted and applied。At the same time，Completed two scientific and technological achievement appraisals，Apply for 3 China Coal Association Science and Technology Awards，3 Shaanxi Provincial Science and Technology Awards；Obtained 2 patent authorizations，27 patents declared and accepted。Scientific and technological innovation work is advancing in an orderly manner，The scientific research project was completed as scheduled。
Continue to promote intelligent coal mining construction，All underground coal mining faces have realized intelligent mining，At the same time, increase the intelligent application and assessment of fully mechanized mining working faces，Ensure the efficient use of intelligent M88 appequipment。Strengthen the technical promotion of “110 Construction Method”，And successfully tested 460 meters of lane retention in Hanjiawan。Accelerate the pace of intelligent rapid excavation construction，Combined with the actual production conditions of the mine，Comprehensively promote the construction of rapid excavation system，Two sets of anchor digging and anchoring integrated machine fast digging systems have been built for Sunjiacha Longhua Mining Company 20202 working face return air tunnel and Hanjiawan 214203 auxiliary transport channel。Actively promote large anchor support technology，Completed the optimization of tunnel support parameters at the fully mechanized mining working face of Sunjiacha Longhua 202 panel，And apply the kilometer directional drilling technology of the excavation working face，Improvement of alternate cycle excavation operation process，Reduce job interference and impact of alternating conversion process，Effectively improve the level of single entry。(Author: Liu Hui Tian Shixiong Editor: Wang Yu)