FIELD: transport, mining and construction industry, particularly to convey carbon-containing suspension or pulp during mineral, particularly coal or slate coal, mining.
SUBSTANCE: sludge line comprises rigid pipes joined to each other and flexible elastic sleeve arranged inside the pipes. Space between the pipes and sleeve is filled with liquid having density at least equal to average pulp density. The sleeve is connected to rigid pipes through at least two hollow flexible centering tie members, which may supply gas and/or agent to damp medium turbulization near sleeve wall. Rigid pipes are connected with each other so that the pipes may perform mutual rotation in areas of pipe axes crossing.
EFFECT: extended functional capabilities of sludge line and simplified flexible hose floatability control in rigid composite pipes.
2 dwg, 7 cl
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