| 摘要 |
<p>A lance holder characterized by a high degree of safety is equipped with a mounting or a pipe fixing, which safely prevents a rotation even of a bent lance pipe in the lance holder. The clamping head has a fixing part and a clamping part which ensure a punctiform fixation by way of displaceable pressure elements, particularly in the form of spheres. At least three such spheres are disposed across the circumference in a distributed manner, and ensure the safe fixation across a large tolerance range with regard to the dimensions of lance pipes. Said large tolerance region is further secured in that sealing sleeves having a larger inside diameter may be used, since the same are no longer deformed in the longitudinal direction in order to provide the seal, but instead are deformed in the radial direction. In summary the high degree of operational safety is also completed by the association of a chip and/or attachment of a nanocoating.</p> |
