Goudsche Machinefabriek B.v.

Theodorus Gijsbertus Ravensberg

Ronnie Johannes Maria Van Heijningen

Rene Jan Zorge

Unnis Maria Van Elderen

Albertus Nicolaas De Moet

An apparatus for heat exchange with radial mixing comprises a trough with two rotatably arranged shafts extending alongside each other, which shafts are each provided with paddles spaced apart in an axial direction with an intermediate distance. The paddles extend substantially in a radial plane with respect to the shafts, and extend in a circumferential direction over at least a part of the circumference. In the circumferential direction, the paddles are at least partly wedge-shaped. Upon opposite rotation of the shafts, successive paddles mesh alternately, thereby forming a gap narrowing again and again. Per shaft, successive paddles in an axial direction are staggered relative to each other in circumferential direction through an angle.

Apparatus for heat exchange with radial mixing

A crystallizer comprising an elongate housing with a drivable shaft extending in the longitudinal direction of the housing, at least one cooling element being placed astride on the shaft, which cooling element to that end has a slotted recess, the cooling element being swept clean by a sweeping element rotating along with the shaft. The sweeping element comprises a shaft part which is mounted on the shaft so as to extend substantially radially and rotate along with the shaft and which carries a sweeping part rotatable about the axis of the shaft part, which sweeping part is provided with at least one sweeping arm but preferably carries four sweeping arms which extend radially relative to the shaft part and enclose equal angles relative to each other, the sweeping element being mounted on the shaft such that, viewed in the direction of displacement thereof, the free end of a sweeping arm is disposed in leading position with respect to the shaft part in a push-scraping position pressed against the cooling element.

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Boskoop, Netherlands

Theodorus Gijsbertus Ravensberg