Title: Boiler extrusion process and plant for products, preferably for human or animal consumption
Application Number: 96197765 Application Date: 1996.09.26
Publication Number: 1200015 Publication Date: 1998.11.25
Approval Pub. Date: 2002.06.26 Granted Pub. Date: 2002.06.26
International Classifi-cation: A21C11/16;A23P1/12
Applicant(s) Name: Buehler AG Address:
Inventor(s) Name: K. Munz
Attorney & Agent: cui yaobeng
Abstract:
    In order to rationalise the quantity of steam used in an extrusion plant and reduce the environment load because of the residual stream, the steam developed in an extruder (1) is conveyed not in any arbritary direction but into a conditioner (6) which requires steam to heat a solid product fed in via a metering device (7). The steam is conveyed into the conditioner not only for moistening purposes but also so that the energy in it may be used to heat the water-moistened solid product. The quantity of steam may be conveyed from the extruder (1) into the conditioner (6) by means of a connecting pipe (19) via a pressure maintaining valve (20). A control system (16) or an operator regulates the steam supplied via a fresh steam line (10) or the water supplied via a water line (11) depending on the steam originating from the extruder, where the temperature of the product yielded by the conditioner is indicated or measured via a sensor (28) in order, for example, to throttle the fresh steam supply when the temperature at the sensor (28) is excessive. The pressure at the valve (20) is set on thebasis of the condition of the product measured at the product outlet (4).
Time: 11
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