Agitating – Mortar mixer type – Methods
Patent
1989-05-11
1990-09-04
Hornsby, Harvey C.
Agitating
Mortar mixer type
Methods
366 25, 366 40, 366 42, 366 64, 432111, 432118, B28C 514, B28C 520, F27B 716, F27B 734
Patent
active
049549952
ABSTRACT:
A burner (13) and a conveyor (6) for aggregates (7) into the drum (2) penetrate into the drum at opposite ends (2a, 2b). Circulation of the gases inside the drum occurs in direction opposite to circulation of the aggregates. The burner has an elongated body (12) arranged in the axial direction of the drum. The drum comprises, from the inlet end (2a) to the outlet end (2b), a drying zone (21), a flame zone (22), a zone for introducing recycled mixes (23') and a heating and mixing zone (23). The device may be associated with a mixer (42) of the conventional type in which the bituminous products (11) leaving the drum (2) are mixed with liquid bitumen and worked. The invention enables coated products for road surfaces to be prepared without the production of bitumen vapor.
REFERENCES:
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patent: 2421345 (1947-05-01), McConnaughay
patent: 3802139 (1989-01-01), Sasaki
patent: 4318620 (1982-03-01), Malipier et al.
patent: 4395129 (1983-07-01), Musil
patent: 4427376 (1984-01-01), Ethyre et al.
patent: 4616934 (1986-10-01), Brock
patent: 4705404 (1987-11-01), Bruggemann
patent: 4787938 (1988-11-01), Hawkins
Ermont C. M.
Haugland Scott J.
Hornsby Harvey C.
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