Abstract:
A process and means for drying gluey materials are described, where the arrangement of rotor arms is adjusted so that fed materialis rapidly mixed into the bed material whereby the moisture content of the bed material is kept below the moisture limit of the glue zone.
Abstract:
An apparatus for the heating and/or drying of wet, comminuted material, e.g. organic material, comprises a stationary housing (2) with a rotatable, hollow rotor (3) with inlet (4) and discharge (5) of a heating medium and possible condensate (6) thereof, and where the rotor has annular drying elements (9) disposed at intervals and with annular channels (10) to which the heating medium is fed in a parallel manner from a central channel (11). The annular channels (10) are circular and are disposed concentrically with each other and with the rotor (3).
Abstract:
A chamber dryer with uniform treatment parameters comprises a drying chamber (20) , a feeding (21) of a mass of damp material to be treated (11) , an inlet (25) for a mixture of hot gases, an outlet (26) for a portion of heavy dried material (12) and an outlet (27) for conveyor air, wherein the drying chamber (20) is a fixed chamber comprising at least one conveyor bed (23) of the damp material to be treated consisting of a series of adjacent rotating elements (24) having an adjustable interaxis, in which two adjacent rotating elements define a gaugable passage opening (40) .
Abstract:
Apparatus and method for treating contaminated waste products, such as drill cuttings. The waste products are heated in a reactor vessel (10) so that liquid contaminants evaporate, leaving solids that are safe for disposal. The input (30) and output (34) of the reactor vessel (10) are controllable relative to the temperature of the contents of the reactor (10) and to the amount of material therein, and the two variables are balanced in order to provide a smoother transition from contaminated to waste material.
Abstract:
A method and apparatus for solidifying a pumpable mass by providing the mass in a gap (6) between a first, movable contact surface (7a) of a first guide element (7) and a second contact surface (2a), movable relative to the first contact surface (7a), of a second guide element (2). The temperature of the guide element (2,7) is controllable. The mass is displaced in the gap (6) over a path where solidifying takes place, the relatively narrow gap having such a height that the mass solidifying and solidified off the two contact surfaces (2a,7a), forced through the gap (6), is exposed, as a result of the movement of the two guide elements (2,7) relative to each other, to a frictional treatment before leaving the gap (6).
Abstract:
A dehydrating apparatus (10) includes a chamber (12) for receiving wet material to be dehydrated. A rotatably-mounted agitator (26) is provided with the chamber (12). The agitator (26) is adapted to agitate material in the chamber when the agitator rotates in a first direction (28) and convey the material out of the chamber when the agitator rotates in the other, second direction (30).
Abstract:
A method for production of dewatered and loosened biopulp, is described wherein precrushed raw biopulp is press fed against a pair of counter-rotating press rolls between which the biopulp is subjected to a pressure whereby it is dewatered and fed into a backpressure vessel maintained at an overpressure which prevents the water pressed out from entering the backpressure vessel and prevents remoistening of the dewatered biopulp, whereafter the biopulp is transferred from the backpressure vessel and subjected to well-known chemical and mechanical treatments for production of powdered fuel, fillers for plastics or pulp for making paper. An apparatus for carrying out said method is also described which comprises a system of feeder pistons (2) for press feeding the biopulp against two profiled press rolls (4, 5), one of which is made of solid metal (5) and the other (4) consists of a number of elastically mounted plates which can move radially in response to a radial load, a backpressure vessel (7) with an overpressure on the exit side of the press rolls, and a compartment feeder (9) for transferring the biopulp from the backpressure vessel.
Abstract:
A liquid separating device (1) for processing a mixture material (3) containing both solid and liquid materials (3a, 3b), in order to separate liquid material (3b) from the solid material (3a), the liquid separating device (1) includes a support frame (5), a series of liquid separation assemblies (7a, 7b) and a corresponding guiding assembly ( 19) between each pair of liquid separation assemblies (7). The liquid separation assemblies (7) are disposed about the support frame (5) in a cascading configuration, and the passage (13) of each liquid separation assembly (7) is narrower in width than the passage of a preceding liquid separation assembly (7) so that each subsequent liquid separation assembly (7b) is enabled to extract more liquid material via an increased wringing pressure resulting from a thickening of the remaining mixture material (3) to be processed and the narrower subsequent passage (13b) through which it is channeled and pressed.