Patent EA-023450-B1 (EA)
Title: Waste recycling facility for processing bitumen-containing wastes of soft roofing materials
Inventor: PANASYUK ANATOLIJ IVANOVICH
IPC: C10C3/00
Filed: 2013-02-21
Abstract: The invention relates to civil engineering, in particular, to utilization of roofing materials the components of which can be used in roof repairing, road repairing, and in production of new bitumen-containing materials. The waste recycling facility for processing of bitumen-containing wastes of soft roofing materials includes a unit for preliminary, mechanised (to a possible level) crushing of pieces of ruberoid-bitumen roof claddings to produce smaller pieces, a grinder of small pieces of ruberoid-bitumen roof claddings, a belt conveyor for linking of the preliminary crushing unit with the grinder, a ground material sorting unit comprising an inlet pipe fixed on its front end wall and a multi-facet rotatable drum with perforated walls mounted inside the unit, a tubular duct for connection of the discharge casing of the grinder with the inlet pipe of the sorting unit, a dust-like bitumen collecting unit with air deflectors and a purified air discharge device, an air duct connecting the cavities of the sorting unit and the duct-like bitumen collecting unit, storage bins for bitumen powder, dust-like bitumen and ground bitumen cardboard. The novel features are that the inlet pipe is additionally fitted with an agitator mounted on the rotatable drum, and the tubular duct is made of elastic material and is additionally fitted with a shaker mounted on a support platform cantilevered on the front end wall of the sorting unit, and is also additionally equipped with a detector for detecting maximum allowable blocking but excluding complete stopping of the ground materials flow, and with a system for automatic deblocking, the agitator is L-shaped and includes a scraper located inside the inlet pipe over its entire length, in parallel to its inner surface, with a minimum possible gap, and a vertical bracket rigidly connected at the bottom in a cantilever manner with the free end of the scraper and fixed at the top on the front end wall of the rotatable drum by means of bolts and one common washer with individual respective holes and bendable locking lugs; the shaker comprises a vibrator with an electric drive and a working tool contained in a housing mounted on the support platform, a pusher connected at the bottom with the working tool interacting with the vibrator and connected at the top with a contact plate whose back side contacts snugly the elastic tubular duct in front of the inlet pipe in case of accumulation of ground material in its inside cavity, at the place of the sharp bend, a support spring fitted over the pusher and located between the contact plate and the support platform, rods extending perpendicularly and fixed in a cantilever manner on the edges of the contact plate at the bottom, their free ends fit the guide sleeves on the support platform; the maximum allowable blocking detector with a sensor element is located on a bracket mounted on the support platform so that its height h can be adjusted in accordance with the level of sagging of the elastic tubular duct under weight of milled material accumulated therein, and the acting element is fixed on the free end of one of the rods and is able to interact, through the air gap, with the sensor element of the detector in case of their maximum approaching due to development of the named blocking; the system for automatic removal of blocking in the elastic tubular duct includes a program-command unit, START and STOP buttons connected respectively to the first and second inputs of the named unit, the maximum allowable blocking detector connected to the third input of the named unit, a system operating condition signaller connected to the first output of the named unit, and the electric drive of the vibrator connected to the second output of the named unit. The improvements provided make it possible to improve attendance conditions, to reduce labour intensity, to decrease forced downtimes and time losses, to increase productivity, improve reliability of operation and efficiency of the facility.