2011
      
      
        INTERNATIONAL MINING FORUM 2011
      
      
        
          30
        
      
      
        ing on the longwall conveyor with the use of the 
      
      
        plough;
      
      
        innovative solution concerning the method of 
      
      
        --
      
      
        building-in and supporting the longwall cavities, 
      
      
        namely the spaces created between the utmost 
      
      
        sections of the mechanized longwall support 
      
      
        and the longwall headings;
      
      
         the system of connecting the armored face 
      
      
        --
      
      
        conveyor with scraper conveyor in the headgate 
      
      
        which facilitates their mutual movement;
      
      
        a modern method of connecting the headgate 
      
      
        --
      
      
        scraper conveyor with the belt conveyor though 
      
      
        the use of a new type of driving station that al-
      
      
        lows to move the scraper conveyor and shorten 
      
      
        the belt conveyor during the exploitation shift 
      
      
        what results in using a part of the maintenance 
      
      
        shift for advance of the longwall,
      
      
        building retention tanks designed to protect the nor-
      
      
         • 
      
      
        mal advance of the longwall and ensure continuity of 
      
      
        the hoisting shaft work;
      
      
        builiding-in cumulative haulage system with the use 
      
      
        • 
      
      
        of belt conveyors with 1600-mm-wide belts adapted 
      
      
        to reception of raw material from even three long-
      
      
        walls and using it for control with a help of radars 
      
      
        guiding the speed of the conveyor’s belt depending 
      
      
        on the size grade of the raw material.
      
      
        presentation of mechanized transport:
      
      
         3. 
      
      
        routes of underslung railways for transport of people 
      
      
        • 
      
      
        and materials to a desired destination depending on 
      
      
        the needs and present situation;
      
      
        underslung internal combustion machines adapted 
      
      
        • 
      
      
        for present and future transport needs of the mine;
      
      
        innovative way of near-shaft railways construction 
      
      
        • 
      
      
        – they are built on pipe-cement piles what ensures 
      
      
        their stability and reliability;
      
      
        the use of concrete coatings for heading support 
      
      
        • 
      
      
        requiring restoration of original supporting capacity 
      
      
        with simultaneous reinforcement in order to prolong 
      
      
        their functioning;
      
      
         the use of a new device for dusting the headings 
      
      
        • 
      
      
        with stone dust to prevent the possibility of coal dust 
      
      
        explosion. This device ensures very good and ef-
      
      
        fective way of distributing stone dust for coal dust 
      
      
        neutralization which increases safety of the crew’s 
      
      
        work.
      
      
        Furthermore all willing participants that are not going to 
      
      
        the mine bottom will have the opportunity to get familiar 
      
      
        with the structure of the basic surface infrastructure of the 
      
      
        mine. Our group will be guided by several engineers which 
      
      
        will present present investments realized in these areas:
      
      
        mechanical processing of the coal,
      
      
         • 
      
      
        surface coal haulage route from Stefanow to Bog-
      
      
         • 
      
      
        danka,
      
      
        mining shaft hoisting machines for transport of people,
      
      
         • 
      
      
        the building of the hoisting machine
      
      
         • 
      
      
        central air conditioning in Stefanow field.
      
      
         • 
      
      
        Conference programme