RETORT FOR PRODUCTION OF COMPOSITE SLEEPER Russian patent published in 2009 - IPC B27M3/14 

FIELD: woodworking industry.

SUBSTANCE: invention is related to woodworking industry and may be used in construction of plants for manufacture of composite sleepers for broad gage railway. Retort comprises body, electric motors, transporters, pneumatic pipelines, system for supply of initial raw material elements and collecting of finished produce. Upper part of retort has vertical auger that is connected by means of pneumatic line to bunker-hoppers for supply of initial raw material that consists of 80% wood fiber, 10% of metal chips and 10% of fine powder of worn car and tractor tyres. Mixing knives fill hopper with mixture via truncated cone, and mixture is further supplied to mixing chamber, and then with the help of vertical augers all strictly batched mass arrives to matrix with movable gates and hydropress that finally forms composite sleeper on metal plate, top of which is covered with driven metal tape, which carries composite sleeper out of retort to belt conveyor at open outlet gate.

EFFECT: application of retort increases efficiency of composite sleepers production, reduces operational costs.

3 dwg, 1 tbl