Abstract: An impeller seat for a pump, the impeller seat comprising an inlet wall, an inlet radius, a guide pin connected to and extending radially inwards from the inlet wall, and a feeding groove arranged in the upper surface of the impeller seat, extending from the inlet wall to the periphery of the impeller seat. The guide pin includes a tip radius. A 15%-circle is offset radially inwards from a circular intersection fifteen percent of the difference between the inlet radius and the tip radius. A groove inlet upstream edge line of the impeller seat intersects an upstream edge of the feeding groove at the circular intersection, seen in the direction of rotation of the pump. A groove inlet upstream edge angle between a radius of the impeller seat intersecting an upstream edge of the guide pin at the 15%-circle, seen in the direction of rotation of the pump.

Abstract: A centrifugal pump (1) including: a pump housing (3) enclosing a pump chamber (13), the pump chamber (13) including a suction inlet (15) and a pressure outlet (17); an impeller (19) rotatably arranged within the pump chamber (13) for being driven to rotate about a rotor axis (R), the suction inlet (15) being located coaxial with the rotor axis (R); and at least one stationary scraper (39). The impeller (19) includes an impeller base (31) and at least one or more impeller vanes (33) extending from the impeller base (31) towards the suction inlet (15). Each of the impeller vanes (33) includes a radially innermost vane path (45) describing during impeller rotation a central volume (41) that is wider towards the suction inlet (15) than towards the impeller base (31) and configured to receive the at least one scraper (39) projecting from the suction inlet (15) into the central volume (41).

Abstract: A pump housing (4) for an eccentric screw pump, comprising a housing casing (5) extending along a housing longitudinal axis (L), a first end-face opening (6), to which a shaft seal (7) for a connection shaft (8) can be connected, and a second end-face opening (10), to which a stator (I) can be connected, and comprising a tubular inlet nozzle (11), oriented transversely to the housing longitudinal axis (L), for feeding a medium that is to be conveyed, which inlet nozzle is connected to the housing casing (5) tangentially, offset in relation to the housing longitudinal axis (L). The geometry of the inlet nozzle (11) is designed in such a way that, as the medium flows into the housing interior through the inlet nozzle (II), a flow (S) is generated which has a radial direction component (RI) directed away outwardly from the housing longitudinal axis (L) and/or an axial direction component (R2) directed towards the first end-face opening (6).

Abstract: A shredding assembly for a grinder pump includes a stationary shredding ring mounted to an inlet of the pump, and a cutting device rotatable about an axial direction and fixed to a shaft of the pump. The shredding ring includes a top face, a bottom face, and a central opening extending from the top face to the bottom face and delimited in a radial direction by an inner periphery. Slots extending in the axial direction are formed in the inner periphery. The cutting device is positioned in the central opening of the shredding ring, and includes a front face and a back face. The front face includes a plurality of first cutting members extending in the axial direction and facing the slots. The back face includes a second cutting member projecting beyond the central opening with respect to the radial direction.

Abstract: A turbocharger for an internal combustion engine is provided, where the turbocharger includes a housing, a shaft, a turbine wheel, and a compressor wheel. The shaft is rotatable with respect to the housing and defines a centerline. The turbine wheel is mounted to the shaft and is disposed within the housing. The compressor wheel is also mounted to the shaft and is disposed within the housing. The turbine wheel and/or the compressor wheel has a plurality of blades with leading edges that converge at an apex. The apex is aligned with the centerline. A method of constructing a turbocharger is also provided, where the method includes the step of performing a finishing operation on the turbine wheel and/or the compressor wheel to form an apex where the leading edges of the blades converge.

Abstract: A vortex pump with an impeller is provided. The impeller includes blades for delivering solids-containing media which are arranged in bundles. The spacing the blades in the bundles is smaller than the spacing of the bundles from each other.

Abstract: A hydropyrolysis process comprises feeding both (i) hydrogen and (ii) a biomass-containing feedstock or a biomass-derived feedstock, to a hydropyrolysis reactor vessel. The process comprises producing a CO2-containing vapor stream and at least one liquid product. A CO2 product, separated from the CO2-containing vapor stream, is advantageously used for at least one inertization function of the hydropyrolysis process. Representative inertization functions include operation of solids transport equipment, blanketing of liquid containers, drying of biomass-containing feedstock or biomass-derived feedstock, conveying or separating solids, and combinations thereof. Importantly, CO2 products utilized for these inertization functions may be obtained predominantly, if not completely (depending on the nature of the feedstock), from renewable carbon in biomass.

Abstract: Wastewater pump comprising a reversible motor (110) driving a rotor (160) equipped with blades (170). The rotor (160) is a disc (165) bearing pivoting blades (170) each mounted on a radial spindle (167) borne by the rotor. Each blade (170) is composed of a plate (171) bearing an articulation node (175) engaged on the spindle and a cutter (172) on the back of the plate forming a prop supporting the plate in the active position when the rotor (160) is rotating in the forward direction (D), and the cutter (172) projecting in the peripheral direction when the rotor (160) turns in the reverse direction (R), the plate (171) being applied against the disc (165). A fixed ring surrounds the disc and bears at least one cutter (135).

Abstract: A pump for pumping liquids containing entrained solids. The pump includes a volute surrounding an impeller comprising vanes that are self-cleaning. The outer surfaces of the vanes are coplanar and define a first plane and have a leading edge. The volute includes a planar mating surface defining a second plane parallel to the first plane of the rotary impeller. The planar mating surface is proximate to the outer surfaces of the vanes and includes a plurality of channels extending radially from the inner perimeter to the outer perimeter thereof. Each channel includes a forward edge in the direction of impeller rotation. The channels are oriented such that when the impeller is rotated within the volute, for any vane, the leading edge of the vane traverses each channel progressively from the inner end of the channel to the outer end of the channel.

Abstract: A pump apparatus includes a particulate pump that defines a passage that extends from an inlet to an outlet. A duct is in flow communication with the outlet. The duct includes a deconsolidator configured to fragment particle agglomerates received from the passage.

Abstract: Device for mechanically splitting finite textile fiber bundles, comprising n individual fibers (n?2) in fiber bundles having less than n individual fibers and/or individual fibers, characterized in that in a milling chamber that is closed off from the outside and that has one or more dead spaces of at least 10% of the milling chamber volume and in which one or more rotating striking elements operate in a non-cutting manner and so as to reduce load peaks and at a rotational speed that can be adapted to the material but that is at least 200 r.p.m., the material is adjustably input in different amounts in batches, treated for an adjustable duration, and then discharged again from the milling chamber.

Abstract: A liquid level sensing assembly employs an inductive or magnetic coupling to wirelessly communicate a plurality of signals based on a changing level of wastewater in a tank to a first coil of a pump/alarm control circuit in the grinder pump. The assembly includes at least one liquid level sensor operable in response to the changing level of the wastewater, a second coil positionable adjacent to the first coil in the grinder pump, and a transponder for extracting electrical energy using the second coil in response to the first coil. The transponder is operably connected to the at least one liquid level sensor and operable to wirelessly transmit from the second coil to the first coil the plurality of signals based on the state of the at least one liquid level sensor due to the changing level of the wastewater in the tank.

Abstract: Apparatus for processing board insulation into granules of loosefill insulation are provided. The apparatus includes an upper unit having inlet and outlet ends. The inlet end is configured to receive board insulation. The upper unit is configured to break the board insulation into small pieces. A lower unit is connected to the upper unit. The lower unit is configured to receive the small pieces of board insulation exiting the upper unit. The lower unit includes a plurality of conditioning mechanisms configured to condition the small pieces thereby resulting in granules of loosefill insulation. The lower unit further includes a distribution mechanism configured to distribute the granules of loosefill insulation into an airstream. A distribution hose is connected to the lower unit and configured to convey the granules from the apparatus to a building insulation cavity. The granules are configured for use as loosefill insulation within the building cavity.

Abstract: In a pulverization/dispersion processing system using a medium agitating type wet pulverization/dispersion machine, a system capable of judging the progress of pulverization/dispersion processing successively and objectively during the pulverization/dispersion processing is provided. A pulverization/dispersion processing system 10 including a medium agitating type wet pulverization/dispersion machine 20, a holding tank 40 of a material to be processed, a circulating pump 30, and circulating lines 50 connecting these components to each other is equipped with a particle size distribution measuring instrument and/or a zeta potential measuring instrument 60 in one of the circulating lines 50. These measuring instruments 60 perform measurement by means of an ultrasonic wave, and can use an ultrasonic attenuation method or an electronkinetic sonic amplitude method.

Abstract: The invention relates to a cutting tool pertaining to a centrifugal pump for liquids loaded with solids. Said cutting tool comprises a rotating cutting body comprising at least one opening forming a cutting edge and through which the liquid flows, the lateral surface of the cutting body facing the rotationally fixed opposite surface that also comprises at least one opening through which the liquid flows. The lateral surface of the cutting body, facing the opposite surface, is curved in a convex manner, and the opposite surface is curved in a correspondingly concave manner.

Abstract: A pump assembly supportable in a tank having an opening includes a pump such as a grinder pump and a cover attachable to the pump. The cover has a peripherally-extending portion extending outwardly from the pump and the peripherally-extending portion is sized to rest on a first surface of the portion of the tank defining the opening. A quick-release latching mechanism may include a plurality of members such as arms or pawls which are movable generally radially between a retracted position wherein the outer ends of the plurality of members are disposed inwardly of the peripherally-extending portion of the cover allowing the pump assembly to be lowered into the opening in the tank, and an extended position wherein the outer ends of a plurality of members are positionable against a second opposite side of the portion of the tank defining the opening to compress the portion of the tank forming the opening between the cover and the plurality of members.

Abstract: A method for transferring and collecting waste material, especially food waste, in which method the s waste material is transferred in a pipe system (7) portion-like from a feed station (1) to a collecting tank (9) and possibly onwards to further processing, Waste material is transferred in the pipe system with a pump device (8) which is arranged to the pipe system (7) between the feed station and the collecting tank, in which case the waste material passes through the pump (8).

Abstract: A centrifugal pump of the chopper type is disclosed which is structured with a chopper plate and impeller that are configured with an open eye or “hubless” arrangement such that processing of solids through the pump does not result in clogging of solids at or near the center of the impeller, thereby producing a dead zone. Because the configuration of the chopper pump of the present invention avoids the development of a central dead zone or clogging of solids, and provides for flow of solids and fluid through the eye of the impeller, pump efficiencies are markedly improved.

Abstract: A blender and juicer system involving a blender container, having an open top and an open bottom, and a removable juicer member being open at each end and adapted for insertion into the blender container. The blender container is adapted to prevent the over-insertion of the removable juicer member. The inserted juicer member is adapted to engage operatively the interior of the blender container. The blender and juicer system also involves a plunger adapted for insertion into the juicer member. The inserted plunger is utilized during a juice extraction operation. The plunger includes a top exterior lip that defines the optimal range of plunger insertion into the juicer member.

Abstract: A hogging, sometimes known as reducing, apparatus for reducing wood waste into hog fuel, though some embodiments may also be used for reducing other materials including demolition timber, demolition masonry, mild steel scrap (thin sections), soft metal scrap, recycled cans, recycled glass, recycled plastic, soft rocks, occasionally hard rocks, recycled roading and asphalt, old tyres, and certain green garden waste. The apparatus includes a drum (40) inclined to the horizontal and into which raw material can be fed at its upper end. Rotation of the drum (40) assists driving raw material towards reducing elements (45) positioned at an angle near its (40) lower end. Screening apertures (41) allow sufficiently comminuted material to pass therethrough for removal. Optional features include internal agitators (60) for improving processing and screening, assisted drying of raw material by motor exhaust (71), and initial pre-screening of foreign material.

Abstract: A sewage pump includes a motor, a main shaft, an upper impeller, a lower impeller, a grinding wheel, a top cap, an upper bearing base with an upper mounting plate, an upper bearing base, a tube body with a wire inlet connector, a lower bearing base, a lower bearing with a lower mounting plate, a lower base and a vertical bypass. The main shaft has a quad-bearing structure to minimize deflection at high speed and high pressure and has rotary seals at each end to improve stability and sealing efficiency. Moreover, the wire inlet connector is filled with epoxy filling material to protect the wire, and the sewage pump further has moisture-sensors to timely stop the motor when sealing efficiency is failing.

Abstract: A spray nozzle that includes a nozzle body defining a first surface, a cap defining a second surface able to define an annular nozzle opening therebetween, and a turbine having a plurality of radially extending fins circumferentially positioned about the nozzle opening for directing the flow of fluid exiting the nozzle opening. The turbine is rotatably connected to the cap such that the nozzle opening is free of any portion of the turbine. The spray nozzle further includes a grinding member.

Abstract: A grinder pump with a self aligning cutter assembly, the grinder pump having an inlet port, a drive shaft and a cutter assembly, the cutter assembly comprising a rotary cutter and a stationary, annular cutter. The rotary cutter is supported for rotation by the drive shaft, and the annular cutter is supported in the inlet port. The rotary cutter has a pair of primary knife members with knife edges, and the annular cutter is supported in the inlet port, the annular cutter having a central bore in which a plurality of internal cutting edges are formed. The rotary cutter is supported in the central bore so its primary knife members are rotated in operational cutting engagement with the internal cutting edges by the drive shaft. The annular cutter is provided a limited range of radial movement and is positioned within the range of movement by the rotary cutter.

Abstract: A centrifugal pump of the chopper type is disclosed which is structured with a chopper plate and impeller that are configured with an open eye or “hubless” arrangement such that processing of solids through the pump does not result in clogging of solids at or near the center of the impeller, thereby producing a dead zone. Because the configuration of the chopper pump of the present invention avoids the development of a central dead zone or clogging of solids, and provides for flow of solids and fluid through the eye of the impeller, pump efficiencies are markedly improved.

Abstract: A sanitary shredder includes at least a channel feeding water into a caisson (1), an electric motor whereof the axis has at its end a rotor pump (5) with blades (6), and shredding elements opposite the shredding chamber (3) provided with an inlet. The front surface (5a) of the rotor (5) is substantially planar and comprises a plurality of passages for water arranged substantially radially and emerging on the circumference of the rotor (5), each passage of the rotor (5) is extended by a channel delimited by the helical blades (6), the rotor (5) is housed in the pump body (8), its front surface (5a) being substantially in the plane of the pump body opening, shredding members (9) being arranged in axial projection relative to said front surface (5a).

Abstract: A pump and grinder assembly is provided for use with a steam producing device having a housing defining a water chamber. The assembly includes a motor having a rotatable output shaft and a pump and grinder shaft coupled to the output shaft for rotation therewith. A blade assembly, having a plurality of blades, is secured to the pump and grinder shaft for rotation therewith. A housing is interconnected to a stationary portion of the motor and defines a grinding chamber housing the blades therein. The assembly is mountable on a steam producing device so that the grinding chamber communicates with the water chamber of the steam producing device. The pump and grinder assembly is operatively effective for pumping water and loose scale contained within the water out of the steam producing device and grinding the scale into relatively smaller pieces.

Abstract: A continuous crushing method including at least feeding a toner block into a crusher through a screw feeder thereof having a crushing capacity while cyclically increasing and decreasing a feeding amount of the toner block; and crushing the toner block to prepare a toner, in which the feeding amount of the toner block in the increasing cycle is larger than the crushing capacity.

Abstract: Apparatus and system to mechanically lyse microbial cells and disintegrate particulate in liquid and recycling the lysed cells, cytoplasm and particulates to the aeration system of a wastewater treatment plant. The method of lysis is cavitation and impingement in a mill, which preferably has a plurality of stages, each with a rotor/stator set. A corresponding plurality of dividers within the mill channel the fluid sequentially through each of the plurality of stages. Orifice plates may be utilized to maximize cavitation by controlling flow into the rotors, which preferably have tapering slots to maximize cavitation.

Abstract: The comminution and distribution device according to the invention can be used to crush comminutable, pumpable materials, in particular mechanically dewatered slurry, into roughly the same sized pieces, and feed them in controllable quantities to a downstream device, e.g., a dryer. To this end, the slurry is conveyed through a gap formed by two oppositely rotatable parts. In preferred embodiments of the device according to the invention, both parts exhibit recesses on the side facing the gap, which are designed in such a way that, when the two parts are turned opposite each other in the preset rotational direction, slurry strands with periodically alternating areas with smaller and larger cross sections are formed, transported outside and split at locations exhibiting smaller cross sections.