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Mining knocking down device to seal the blast holes, especially long holes
Mining knocking down device to seal the blast holes, especially long holes
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机译：采矿爆破装置以密封爆破孔，特别是长孔
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摘要
the subject invention provides wadding mining to seal shot holes, especially long shot holes.wadding is a longitudinal cylinder with outer, closed wall, filled with plastic material, whereby the coating is a multi ply and has a closed shape with two sides waltz, obtained by single axial 7.2.3.1.2 above multi-layer webs (1), at least one side of which is at least partially covered with a layer of thermoplastic.zgrzewalnego plastic (2), whereby the side webs are interconnected through a sharp longitudinal stress belt (a, b) the inner side webs (1) or by a bookmark longitudinal, extreme belt (a) inner side webs (1) on the longitudinal belt (b), extreme wnu0119trznej side webs (1) forming a longitudinal seam.the combination of the contact surface stress longitudinal belt (a, b) of the ribbon (1) is a combination of klejowym, or is a combination of welded using thermoplastic plastic layer (2) or is a combination of zszywanym.
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