Apparatus for hot-briquetting iron sponge

Details Apparatus for hot-briquetting iron sponge Apparatus for hot-briquetting iron sponge

1994-05-20

1996-08-20

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Means for molding powdered metal

Continuous length product formation

249111, 264 404, 425141, 425145, 425147, 425367, 425579, 425580, 425447, 425449, B29C 3100, B22F 303

Patent

active

055473571

ABSTRACT:
An apparatus for hot-briquetting iron sponge includes a gravity feeder which has a feed shaft and a regulating tongue which supplies material in a dosed quantity to a moulding gap of a roller press, in such a way that the apparatus can also be used for pressing hot iron sponge at temperatures of up to 1000.degree. C. for obtaining high-density briquettes of good quality. The regulating tongue is provided with a heat-reducing insulating layer and cooling system. The feed shaft and a feed hopper also may have a heat-insulation layer and a cooling system. A flow-rate control is provided for gravity feeders where bulk material or flowable material is supplied by at least one regulator through a feed shaft to a moulding gap formed between at least two rolls and is processed by the rolls. At least one of the rolls is motor-driven. The material is supplied to the moulding gap by the regulating tongue in response to a driven roll torque sensed by a torque detector. A displacement path detector may also be employed to sense lateral displacement of the rolls.

REFERENCES:
patent: 1804207 (1931-05-01), Charman et al.
patent: 3620157 (1971-11-01), Rieschel
patent: 3752435 (1973-08-01), Daussan
patent: 3794287 (1974-02-01), Atkinson
patent: 3901635 (1975-08-01), Greenberger
patent: 3988095 (1976-10-01), Mersch et al.
patent: 4144009 (1979-03-01), Jackson et al.
patent: 4721278 (1988-01-01), Vallak et al.

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