Abstract: An installation for drying organic matter, especially kitchen and food wastes or other biological matter, including matter that contains packaging residues, napkins, straws or the like. The installation comprises the following components: (a) a vacuum mixer (M) having a closable charging opening for introducing the organic matter and a closable discharge opening, disposed at the bottom or laterally towards the bottom, for the dried matter, (b) at least one vacuum pump (VP) for evacuating the air in the mixer to generate the vacuum, the pump being connected to at least one evacuation tube mounted above the maximum filling level in the housing of the mixer (M), (c) a heater (H) for heating the organic matter, (d) at least one condenser (K), connected to the air evacuation duct (AL) of the vacuum pump (VP) and having a cooling unit (KA) connected thereto to condense the evacuated air, and (e) a discharge duct (AW) for the condensate obtained from the evacuated air by cooling in the condenser (K).

Abstract: Methods and devices of drying biological materials are described, including a desiccation chamber that may be used to dry biological materials while substantially preserving functional integrity of those materials. The desiccation devices and methods provide optimal conditions and ease of use for drying biological materials. The devices and methods provided here may be used to prepare biological materials for use in one or more of diagnostic, therapeutic, industrial, and research applications.

Abstract: A material drying apparatus for substantially eliminating the liquid content of a sludge, the apparatus including a first stage operating at ambient pressure for heating the sludge; a second stage operating with partial vacuum for receiving heated sludge from the first stage for further heating and for drying the sludge by evaporation of substantially all liquid therefrom leaving a dry particulate material; and an evacuated cyclonic stage for applying sufficient centrifugal force to the dry particulate material to render this material odorless.

Abstract: A rotary particle dryer has a shaft extending along an axis and a hollow drum coaxially and spacedly surrounding the shaft and rotatable about the axis in a direction. A set of axially extending inner baffles fixed to the shaft extend radially outward therefrom and each form at least one angularly open inner pocket. A set of axially extending outer baffles fixed to the drum extend radially inward therefrom and each form at least two angularly open outer pockets. Structure mechanically connects the inner baffles directly with the outer baffles.

Abstract: The machine (1) includes a tunnel structure (2) which defines a chamber (8) with inclined, downwardly converging longitudinal side walls (9) and in which a substantially horizontal conveyor (10) for conveying a layered flow of shredded tobacco (T) from the input end (6) to the output end (7) of the chamber (8) extends adjacent the lower edges (9b) of the converging side walls (9).

Abstract: The device that has been invented, sprays water into and around a windrow of hay evenly adding moisture to dry alfalfa to allow for baling at moistures above 14% and below 18%, reducing the losses of leaves due to shatter.

Abstract: A continuous flow fluid bed dryer has a dryer housing having a drying chamber and a plenum chamber located beneath the drying chamber. Moist product to be dried is introduced to the drying chamber at a product inlet and proceeds through the drying chamber to a discharge housing. A porous screen partially separates the drying chamber and the plenum chamber. Heated air is introduced into the plenum chamber which then passes through the screen to the drying chamber to dry product in the drying chamber. A shaft extends centrally through the drying chamber and is mounted for slow rotation therein. A plurality of paddles are connected to the shaft. The paddles move about a path of rotation whereby paddle ends sequentially sweep over the surface of the screen. In doing so, the paddles momentarily move product away from the screen permitting a rush of heated into the drying chamber locally fluidizing the bed and further drying the product.

Abstract: A drying machine includes a hot air blower, a housing divided horizontally into plural long chambers having an open upper side, a closed bottom and two longitudinal sides bored with through holes, a screw conveyor respectively positioned in each long chamber, and a motor to rotate all the screw conveyors, and a sending-out screw conveyor positioned on the bottom of the housing. Each screw conveyor has an inner screw and an outer screw twisting in opposite direction for conveying, squeezing, mixing and stirring material at the same time dried by hot air coming from the blower. Material falls down from a funnel on the upper side of the housing and gradually falling down through the through holes and an outlet in an end of the bottom of the highest long chamber and then into a second highest long chamber and so on to the lowest portion of the housing to be conveyed by the sending-out screw conveyor to an exit through which dried material falls down through for collected.

Abstract: A continuous drying system for flake-formed or granular solid, of which bottom inside surface is semi-cylindrical and arranged almost horizontally, comprises drying system main body having a supplying means of a drying object at one end thereof and having a discharging means at the other end thereof, and a coil-formed sending apparatus arranged rotatably inside the main body, and a bar-formed or blade-formed stirring member arranged between the sending apparatus transversely. The drying object is transferred by said coil-formed sending apparatus, and a part of the drying object is retreated while stirring by scooping up the drying object with the stirring member along the inside surface of the main body of the drying object. The transfer of the drying object is delayed in comparison with the rotation of the sending apparatus.

Abstract: The apparatus includes a channel having an inlet end for receiving particulate material to be dehydrated and an outlet end for discharging the particulate material in a dehydrated condition. A screw conveyor rotatably mounted in the channel advances the particulate material while stirring the particulate material to enhance the release of water and noxious vapors. A fan creates an air current in the channel to entrain water and noxious vapors released by the particulate material. The vapors are directed toward a heating chamber which incinerates dangerous and odoriferous compounds as much as possible. The resulting gaseous media is directed through a passage in a heat-exchange relationship with the channel to elevate the temperature of the particulate material that is being processed and to cause same to release water and noxious vapors.

Abstract: In the process and apparatus for kiln-drying of malt, at least two zones (A and B) are provided for preliminary drying and one zone (A1) is provided for secondary drying and/cooling of the malt. The unsaturated exhaust air from the secondary drying and/or cooling zone (A1) is admixed as return air with the intake air system, while in the preliminary drying zones (A and B) respectively different preliminary drying times are achieved by the degree of their loading with malt, the design of the floor surface and/or by adjusting the volume flow, the temperature and/or the moisture content of the intake air, so that during the secondary drying in the secondary drying zone (A1), a predrying process is always in operation in at least one predrying zone (A or B). Each individual zone (A, B and A1) is separated in operation as to air technology from the others.

Abstract: Used drilling muds containing substantial quantities of organic liquids and water-soluble salts are treated to render them environmentally acceptable for disposal purposes, by drying the muds to evaporate all liquids, aqueous and non-aqueous, preferably in a shell-and-tube type heat exchanger through which they are conveyed and held in suspension by screw conveyors, and preferably with the vapors thus generated flowing in a direction counter-current to the mud. Water-soluble salts are removed from the dried mud components by dissolving with water, and the vapors are condensed and phase separated for further purification and re-use if desired.

Abstract: A vacuum rotary drier comprising a hollow body which rotates about a horizontal axis is provided with supplementary stirring devices. These devices, which are fixed to the walls of the hollow body, include a motor located outside the drying chamber and a stirring implement which rotates at high speed within the drying chamber and serves to break up lumps present in the product to be dried.

Abstract: Device for cooling a granular product provided with a bunker with an intake for the material to be cooled at the top side of said bunker and a grate construction located near the bottom side of said bunker, with a fixed grate and a movable grate, movable to and fro in action, whereby the movable grate has been arranged under the fixed grate, while under the movable grate a third grate has been provided, which during operation is displaceable and adjustable in several positions.

Abstract: A silverware dryer having a casing with ducts and nozzles for directing air to a drying chamber, a portable basket usable in a washing operation and thereafter positionable in said drying chamber and with the basket having a series of vibratory holders for silverware which are also mounted for rotational movement and motor-driven members for rotating and vibrating said holders.

Abstract: Described is a sludge recovery apparatus in which influent is admitted downwardly via a vertical motor-driven dual-speed hollow coaxial drive shaft assembly into a hollow open-bottom downwardly-converging cone-shaped centrifugal separator member spun by the outer shaft of such assembly, where liquid from the influent leaves at the top and sludge from the influent is scraped from the inner wall of the separator member for gravity discharge at the bottom by a spiral-shaped scraper spun by the inner shaft of such assembly at a slightly different speed than the separator member. Sludge thus dislodged from such member drops onto a radiantly-heated continuously-rotated drying table having a discharge scraper station and automatic drop doors for gravity ejection of the table-dried sludge into an open-top sludge salvage container.

Abstract: A rotary kiln comprises a rotary drum having a large number of lifters along its inner wall. The end portion of each lifter which is extended interiorly of the rotary drum is bent in the rotational direction of the rotary drum. To the end of each lifter are attached a number of chain like fittings which makes sliding movements along the inner wall surface of the rotary drum and along the upper and lower faces of each lifter in accordance with the rotation of the rotary drum. The chain like fittings so act as to prevent a substance to be dried from adhering to the inner wall of the rotary drum and to the lifters through making sliding movements in accordance with the drum rotation. Further, since the chain like fittings act to break the substance into small pieces and to release it upon dropping due to their own weights, it is dried effectively.