Asphalt drum mixer with temperature control

Details Asphalt drum mixer with temperature control Asphalt drum mixer with temperature control

E - Fixed Constructions

01

C

E01C 19/10 (2006.01)

Patent

CA 2152084

A drum mixer (10) is disclosed which is useful in the continuous production of asphalt paving composition, and which has provision for the accurate control of the final temperature of the composition being produced. The drum mixer (10) comprises a fixedly mounted cylindrical sleeve (32) disposed in a generally horizontal orientation and rotating blades (42) for conveying the heated aggregate longitudinally through the interior of the sleeve (32). An opening (54) is provided in the side wall portion of the sleeve (32), and a box-like enclosure (55) covers the opening (54) and mounts a plurality of sensor mounting tubes (64), so as to permit one or more sensors (66) to be positioned at a location within the enclosure (55). The enclosure is located where the blades (42) or mixing action in the sleeve (32) will supply a regular flow of the aggregate into the enclosure (55), and so that the aggregate then slides over the sensors (66). The sensors (66) are thus subjected to a representative portion of the aggregate, and they are protected from both the radiant heat of the burner (27) and the physical abuse of the mixing action.

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