Abstract: The invention provides a mixing system comprising a magnetically coupled drive system and a foil for cultivating algae, or cyanobacteria, in an open or enclosed vessel. The invention provides effective mixing, low energy usage, low capital expenditure, and ease of drive system component maintenance while maintaining the integrity of a sealed mixing vessel.

Abstract: Disclosed are an improved stirring system and its operating method. The disclosed system includes at least two stirrers and a drive for driving the at least two stirrers to move between their stirring position and non-stirring position, the drive driving the stirrers to perform a stirring operation for a single purpose at a time. The system employs a single drive to drive a plurality of stirrers, which effectively avoids the disadvantage of redundantly stirring the reaction solutions in the reaction vessel not necessary to be stirred, reduces the risk of cross contamination caused by the stirrers and affecting the results by abnormal change in the absorbance, and makes the test results more accurate.

Abstract: A turnover device is provided to turn over and back-mix moist material, in particular sewage sludge in moist or dry state in a dryer in which the moist material is spread out for drying on a floor in one layer. The turnover device is provided with at least one shovel that can be rotated within a circumference around an axis.

Abstract: The invention concerns a method for operating a machine stirring (M) fermentable matter (D) in a fermenting installation. Said method is characterised in that it consists in stirring the fermentable matter (D) by turning it and blowing it to the rear of the machine (M) so as to gradually move it along said passage of a first feeding end (Ce) towards a discharging end (Cs). The invention also concerns the machine (M) consisting of a stirring member (300) comprising a propeller shaft (310) peripherally provided with stirring tools (320) arranged peripherally around said propeller shaft (310) in a pair of reverse pitch turns symmetrically arranged relative to the perpendicular median plane of symmetry of said propeller shaft (310). The invention is useful for producing aerobic fermented mixtures.

Abstract: An apparatus and method for slurrying waste materials and drill cuttings. The apparatus includes a pump having a chamber an inlet opening into the bottom of the chamber, an impeller, an outlet on one side of the chamber for removal of material into a discharge line, and circumferentially spaced circulation ports in the chamber side. The impeller extends below the chamber and breaks up debris in addition to drawing material into the pump chamber. The pump may be rotated by a swivel connection and moved and manipulated in the tank by a crane arm, or it may be suspended by cable or other means. The pump stirs up a slurry by rotating the impeller, opening the circulation ports at least partially so that the material entering the bottom inlet to the chamber and being agitated by the impeller is forced out of the circulation ports.

Abstract: An apparatus and method for mixing fodder with another consumable material wherein a hopper having two compartments is drawn by a tractor or similar vehicle or is self-propelled. Two parallel feeding channels are provided in front of a plurality of animal's stalls in a building and a tractor together with a hopper move between the two feeding channels. There is a discharge device from each of the compartments of the hopper which extend outwardly into the feed channels to receive fodder from one compartment and another consumable material from the other compartment which are mixed together by mixing devices extending outwardly into the feed channels behind the discharge devices. The mixing device is powered by a power take-off shaft from the tractor and rotates to mix the fodder and other consumable material together. The rotation may be about vertical axes or horizontal axes, the latter extending either in the direction of travel of the tractor or transverse thereto.

Abstract: A composting system for promoting maximum aerobic microbial activity in a composting bed. The system includes at least one composting bay for receiving composting material and an agitator for aerating and displacing composting material as it travels through the composting bay. The agitator has at least one structural frame member, and a conveyor, a feeder, and at least one bridge breaker that are mounted to the structural frame member. As the agitator travels through the bay, the feeder takes composting material from the bay and feeds it to the conveyor which discharges the composting material rearwardly into the bay behind the agitator. The bridge breaker displaces the composting material above the feeder causing the material to fall substantially evenly onto the feeder, thereby preventing large amounts of composting material from suddenly collapsing onto the feeder which can result in overload conditions on the feeder drive system.

Abstract: An aerobic fermentation promoting device, a fermentation system and organic compost prepared by the system. The device promotes aerobic fermentation of compost materials by periodically mixing the compost materials together and by letting the compost materials come into contact with the outside air. The device is installed in a fermentation tank and has a rotatable screw conveyor unit, at least one bucket elevator, a drive unit and a steering unit. The compost is produced by charging moisture control materials in the tank, uniformly spraying excrement on the surface of the moisture control materials, mixing the compost materials together using the fermentation promoting device after lapse of four to seven days since spraying of the excrement, and adding new moisture control materials and new excrement to existing compost materials.

Abstract: A compost curing system utilizing a compost turner of generally V-shaped configuration, one leg of the "V" being formed by counter-rotating ribbon augers and the other leg of the "V" being formed by pair of over-under conveyors, the lower conveyor being adjustably extendable to vary the throw of the conveyor system. The legs of the "V" are piviotally interconnected to permit their angular adjustment and are pivotally mounted on a frame structure for attachment to a motorized conveyance. The system includes means for injecting air into compost undergoing treatment and air collection and air treatment apparatus for controlling the temperature of process air emanating from the compost pile for reuse and for deodorizing the air prior to its release to the atmosphere.

Abstract: Method, system and apparatus are disclosed for in-vessel composting of organic material. A compost handling apparatus moves forwardly through a bed of composting material in an elongate open bay. Specifically, an agitator comprises a feed belt such as a transversely mounted cylindrical drum, which feeds composting material to a conveyor which lifts the material and projects it rearwardly behind the agitator. A regulator, such as an adjustable deflector, controls the discharge of composting material by the conveyor. The deflector is adjusted as the agitator moves forward through the composting material to develop a level bed in the bay behind the agitator. A sensor may be employed to generate a depth signal corresponding to the depth of the composting material for controlling the deflector.

Abstract: A rodless linear drive cylinder includes a cylindrical hollow tube, sealed at the ends and containing a pneumatically driven piston. The drive cylinder is so mounted to extend across the ink fountain of a printing machine and includes an ink agitator suspended therefrom into the ink fountain. The agitator is magnetically coupled to the drive piston of the linear drive cylinder.

Abstract: A mobile installation for the treatment of household refuse comprises an elongated vehicle having a centrally located water tank into which the refuse is dumped. Heavier components which settle to the bottom of the tank are transported by an endless conveyor from one end of the tank to a magnetic separator which removes magnetic metal. Other heavy components drop into a crusher and the crushed material is mixed with additives such as cement or coal dust and compressed in a press. Lighter components are removed from the opposite end of the tank by an upwardly inclined screw conveyor which squeezes out much of the water. The lighter components are then mixed with additives such as cement and compressed by an extruder press.

Abstract: An apparatus for treating sludge deposits comprising a girder, first running means for moving the girder in a direction perpendicular to the longitudinal direction of the girder, kneading means held on the girder, second running means for moving the kneading means through a holding frame in a direction perpendicular to the longitudinal direction of the girder and lift means for bringing up and down the kneading means while a chemical is fed from the kneading means is disclosed.The method for treating sludge deposits by using this treating apparatus comprises repeating the step of treating a sludge deposit layer in a band-like area by simultaneously driving the second running means and lift means and the step of driving the first running means, whereby a sludge deposit in a broad region is continuously and promptly treated.

Abstract: An apparatus for treating sludge deposits comprising a girder, first running means for moving the girder in a direction rectangular to the longitudinal direction of the girder, kneading means held on the girder, second running means for moving the kneading means through a holding frame in a direction rectangular to the longitudinal direction of the girder and lift means for bringing up and down the kneading means while a chemical is fed from the kneading means is disclosed.

Abstract: An improved device for distributing and stirring the contents of a furnace having a plurality of vertically disposed electrodes, said improved device including a circular track disposed adjacent the upper periphery of said furnace, a first transport carriage, motor means for moving said first transport carriage, an elongated non-circular trackway supported by said first transport carriage, a second transport carriage, a non-circular trackway, means to move said second transport carriage back and forth, a furnace contents working device connected to said second transport carriage, and means to vary the angular disposition of said furnace contents working device.