Abstract: A modular conveyor assembly employable with a materials mixing system is provided that includes an elongate frame supporting a motor driven axle, an idler axle, and a plurality of rollers supported in individual rotational fashion by the frame, and a belt and chain subassembly configured to be cycled rotationally about the axles and rollers, where the belt and chain subassembly includes first and second chains each attached along first and second sides of the belt, respectively, so that the belt and chains move in unison, and wherein the frame is configured to be detachable from a materials mixing system without the need to disassemble substantial components of the modular conveyor assembly.

Abstract: A waterborne facility on a body of water includes a primary spoolable pipe and a pump. The end of the primary spoolable pipe may be guided from the waterborne facility to a location proximate to a selected site. The pump may be used to discharge a flowable material through the primary spoolable pipe. The waterborne facility may include a ready-mix concrete preparation system. However, the waterborne facility may deliver any flowable material to a selected site, which may be a land surface, underground, on a water surface, or underwater. Illustrative flowable materials include seawater, grout, cement, and sediment/mud.

Abstract: A slurry distributor includes a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit includes an entry segment with a feed inlet and a feed entry outlet in fluid communication therewith and extending along a first feed flow axis. The feed conduit includes a shaped duct having a bulb portion in fluid communication with the feed entry outlet. The feed conduit includes a transition segment in fluid communication with the bulb portion and extending along a second feed flow axis in non-parallel relationship with the first feed flow axis. The bulb portion has an area of expansion with a cross-sectional flow area that is greater than a cross-sectional flow area of an adjacent area upstream from the area of expansion. The shaped duct has a convex interior surface in confronting relationship with the feed entry outlet of the entry segment.

Abstract: The present disclosure allows concrete to be produced on the work site, as and when required, and to limit the space occupied by the production plant.

Abstract: System and method for dispensing liquids into concrete mixer drums, particularly suitable for use on concrete mix trucks, involve use of liquid admixtures nozzle that is separate from water conduit and water nozzle, the admixtures nozzle being aimed and focused to spray through drum opening with dispersion pattern substantially within air/concrete interface defined by minimal volume concrete contained within the drum; and the water conduit or nozzle having a dispersion pattern preferably whereby wash water hits a portion of the inner drum wall and a portion of the air/concrete interface defined by a maximum amount of concrete contained within the drum. In preferred embodiments, a check valve assembly is used to connect separate admixture and water lines, so that both admixture and water nozzles can be used simultaneously during purging operation.

Abstract: A system for mixing a liquid material and a solid material comprises (i) a base unit for the liquid material and the solid material; (ii) a liquid material supply; (iii) a solid material supply; (iv) a liquid/solid mixing output; (v) an injection unit connected to the liquid material supply and to the solid material supply and the injection unit injecting the liquid material and the solid material in the base unit; (vi) a separation and extraction unit simultaneously separating and extracting surplus gas arising from the mixing of the liquid material and the solid material.

Abstract: A mixing apparatus, such as a mobile concrete mixer, has a frame (12) supported on wheels or tracks (14), a hopper (12) mounted on the frame having a plurality of compartments (34, 36, 38) for solid components, a mixing station for mixing the components, conveyor means (40, 58) for transferring the solid components to the mixing station and a tank (62) for liquid (e.g. water) located under the hopper (18) between opposed wheels (14) on either side of the mixer. Location of the tank under the hopper between the wheels allows for a more compact construction and lowers the centre of gravity of the mixer.

Abstract: The present invention relates to a mixer truck with a water system and a water pump for generating the required water pressure in the water system and with further energy consumers, wherein the water pump and/or at least one further load is driven by an electric motor.

Abstract: An HMA plant which uses incidental heating of metal surfaces in combination with hot exhaust gases to pre-heat and pre-dry virgin aggregate material contained in an enclosed container which permits hot dry air to pass through interstices in the virgin aggregate material stored in the container.

Abstract: A method and system for providing a homogenized slurry output comprises a container body defining an interior portion, a discharge for supplying the slurry from the container body to a downstream source and at least one inlet in fluid communication with a pressurized supply of slurry for introducing the slurry into the interior portion of the container body in a circulation pattern that creates a homogenized mixture of slurry in the interior portion of the body.

Abstract: A continuous feed mixer for cement or other mixtures includes a mixing tube which is inclined downward from a feed end to a mixing end. Cement solids are deposited at the feed end. Water is introduced at various locations along the length of the mixing tube to provide a proper proportion of solids and water. The mixing tube is rotated to provide the desired mixing process. A scraper is positioned within the mixing tube to remove material from an inner wall of the mixing tube during the mixing process.

Abstract: The invention discloses a system for mixing a liquid material and a solid material, said system comprising: i) a base unit (22?), for the liquid material and the solid material; ii) a liquid material supply (21); iii) a solid material supply (200); iv) a liquid/solid mixing output (23); and v) an injection unit (20) connected to the liquid material supply and to the solid material supply, said injection unit injecting said liquid material and said solid material in the base unit; vi) a separation and extraction unit (24) simultaneously separating surplus of gas coming from the mixing of the liquid material and the solid material and extracting from the base unit said surplus of gas.

Abstract: An aggregate handling system includes an aggregate delivery station, which includes one or more delivery bays for receiving aggregate from a delivery truck. The system includes storage apparatus associated with each delivery bay and adapted to receive aggregate by gravity feeding from that delivery bay, wherein each storage apparatus includes one or more storage hoppers. The system also includes weigh apparatus associated with each storage apparatus and adapted to receive aggregate from that storage apparatus, wherein each weigh apparatus includes one or more weigh hoppers, and a conveyor for receiving aggregate from the weigh apparatus and being adapted to transfer aggregate to a batching area.

Abstract: A filter vent system and method for separating entrained airborne particulate matter from the conveying fluid is disclosed, particularly as it relates to filling a storage vessel. The filter system employs a simplified, yet more efficient filter cleaning arrangement, in which the entire clean air plenum on the downstream side of a filter array of one or more filter units is periodically pulsed with a large burst or pulse of relatively high pressure air from a single source which rapidly raises the plenum pressure to, in turn, produce a temporary pulsed flow reversal in the filter units which blasts through the filter pores to displace particulate matter collected on the upstream side of all of the filter units alike thereby cleaning or re-generating the filter surfaces.

Abstract: The present invention provides an apparatus for efficient and clean handling of concrete admixtures that allows their incorporation into a concrete mixture in a pre-measured and controlled manner. The system provides a novel packaging system to be integrated into the admixture feed devices on a concrete batch mixing truck allowing transfer and incorporation of the admixture material to the concrete without additional handling by the operator. The present invention consists of a tubular package of heavy gauge cardboard or plastic material such as PVC with an easily removable light gauge cover on each end. The cover would be constructed of a material that could be easily displaced when installing the tube into the feeder section of the mixer. The tube is pre-loaded with any variety of clean pre-measured concrete admixtures.

Abstract: Mixing machine for mixing cement components with water to provide a pumpable slurry, and a method for its use. The machine includes a mixing vessel having an inlet for water at an average flow rate and for dry cement components, and a water tank for supplying water at a high flow rate to the mixing vessel and having an internal diaphragm separating the tank into water and air compartments. The water tank includes an inlet for admitting water to the water compartment and a conduit communicating the water compartment with the mixing vessel and capable of accommodating the flow of water at an average flow rate substantially greater than the average flow rate of water into the water compartment. The conduit includes a water meter and valve to monitor and regulate, respectively, the quantity of water supplied to the mixing vessel.

Abstract: A rotary aggregate elevator for use in an asphalt plant comprising a rotating dryer drum for drying aggregate having an inlet end and an outlet end, a rotating mixing drum having an inlet end and an outlet end, and further having an inlet for dried aggregate at its inlet end for receiving dried aggregate, an annular collar attached to the inlet end of the mixing drum for receiving aggregate discharged from the outlet end of the dryer drum, the annular collar having flights attached to its inner wall to lift dried aggregate to the inlet of the mixing drum as it rotates.

Abstract: A method of manufacturing concrete with a fiber additive and other ingredients including the steps of mechanically manipulating a shipping container (36) having a gross amount of fiber additive (50) substantially greater than the an amount susceptible to unaided manual handling with a mechanical manipulator to dump the gross amount of fiber additive (50) from the shipping container (36) into an additive hopper (46) moving at least some of the fiber additive (50) dumped in the additive hopper (46) to an additive hopper-bin (20) by means of a mechanically powered fiber conveyor (48) and conveying a preselected amount of the fiber additive (50) from the additive hopper-bin (20) to a mixer (14) for mixing with the other ingredients of the concrete being made.

Abstract: An improved mixer for cementitious materials is described. This mixer is mobile and carried to the desired site and comprises a series of tanks and bins for containing the material to be mixed. The device is particularly useful in mixing hazardous wastes (e.g. low level radioactive soils, for example) within cementitious material along with sealants and chemicals designed to encapsulate the hazardous wastes therein. In order to thoroughly mix, and thus contain the hazardous wastes, the residence time within the mixing means must be between 4 and 45 seconds. This residence time may be achieved by keeping the mixing means within certain parameters of angles, relative to the ground, speed of mixing and length of mixing. By carefully controlling these variables, it is possible not only to achieve thorough mixing and encapsulation of the hazardous waste and to make a mobile mixing device that is extremely useful within the metes and bounds of the invention.

Abstract: An apparatus for the controlled feeding of concrete strengthening and adhesion material, such as plastic fibers, to a concrete mix. The apparatus includes a set of reciprocating spikes that contract the fibers with a comb-like action that separates the individual fibers and moves them forward to a rotating agitator having a central rotating shaft with spokes extending outwardly to provide a further separation of fibers and a forward movement of the fibers toward a rotating impeller which moves the fibers forward and downward to a duct which exits to a concrete mixing apparatus. The separation of the fibers prior to entry into the concrete mix serves to inhibit or prevent subsequent aggregation or balling of the fibers in the mix.

Abstract: A tandem waterwheel type trommel apparatus having a laterally-disposed drain-off drum and a laterally-disposed classifying drum combined through a short pipe to form a main body, which is rotatably disposed on a base and is connected to a drive unit. A front end plate and a rear end plate each having a doughnut-like shape are respectively provided at the front and rear ends the drain-off drum. A plurality of buckets are provided in the drain-off drum, and gutters are provided on the back side of upper end portions of the buckets. The gutters communicate with drain holes formed in the rear end plate. A fixed shoot is provided which extends through the drain-off drum to the classifying drum. The classifying drum has a cylindrical portion and a truncated-cone portion. A circumferential member of truncated-cone portion is made porous while a circumferential member of the cylindrical portion is formed of a wire netting. A screw is provided on the outer circumferential surface of the cylindrical portion.

Abstract: Multifunction building machine used in civil construction sites and public works. The machine combines on a self-propelled frame, a concrete-mixer (20) with a set of tools on one side, comprising a loading power shovel (60), a grader (70) and a digging shovel (80) and on the other side a dumper (50). The concrete mixer is of the fixed container type provided with a rotary mixer (33), a hinged cover (25) being adapted to form a spout for transfering the contents from the loading shovel to the dumper.

Abstract: A portable concrete batch plant which may be pulled from one location to another and which may be used either as a transit mix batch plant or a central mix batch plant. The batch plant is mounted on a wheeled frame comprised of a rear frame section and a front frame section removeably secured thereto. The batch plant is transported from one location to another with the rear and front frame sections connected together. If the batch plant is desired to be used as a transit mix plant, the front and rear frame sections remain connected together. If it is desired to use the concrete batch plant as a central mix batch plant, the front and rear frame sections are separated with the front frame section being spaced horizontally and vertically from the rear frame section with an extension conveyor being positioned there between.

Abstract: A transportable concrete batching plant is disclosed which combines improvements in the discharge section of the aggregate storage bin and aggregate batching hopper together with an unique suspension system which allows for weighing of both aggregate batching hopper and the cement batching vessel by a plurality of load cells and which also allows tension to be removed from the load cells if desired.

Abstract: Disclosed is a method and apparatus for avoiding the clumping of dry fibers having diameters and lengths in certain ranges during blending of such fibers into a dry or wet particulate material. The process comprises distributing fibers in a vaporous medium, and transporting fluidized fibers to a mixing zone containing a dry or wet particulate material. Concurrently with stirring and blending of the particulate material with fluidized fibers, the fluidized fibers having been separated at least partially from a fluidized vapor are gradually introduced into the mixing zone. This process avoids the phenomena of "balling" that otherwise occurs with certain fibers.

Abstract: A system for adding a predetermined volume of particulate material to a reactor which includes an inclined track mounted on the reactor such that a lower end of the track terminates adjacent an opening in the reactor, and a slideable container mounted on the track for sliding movement from an upper end of the track to the lower end of the track, the container having an internal volume equal to the predetermined volume, and having a forward wall which can be opened to discharge the contents of the container. The container is filled with particulate material, such as sand, when the container is adjacent the upper end of the track. The container is thereafter moved downwardly along the track until the container is adjacent the opening in the reactor, the forward wall of the container is opened to allow particulate material to flow into the opening of the reactor and the container is thereafter tilted towards the reactor to discharge any remaining particulate material in the container into the reactor.

Abstract: This invention relates to an improved aggregate drying apparatus and method where the dried aggregate is particularly useful for making hot mix asphalt. In accordance with the system, heat typically lost in exhaust gases and moisture evaporated in a heater is recovered to dry and preheat the aggregate. The invention also relates to novel components used in the system, including an improved aggregate dryer and an improved mass flow apparatus for use in an aggregate dryer or otherwise in aggregate feed bins.

Abstract: This invention is directed to a mixing apparatus for mixing liquids and particulate solids which comprises an enclosed cylindrical housing with an inlet means and a liquid/solid outlet means coupled to said housing and a slinger disposed within said housing which comprises a flat disc with a plurality of circumferentially spaced vertical vanes and a cylindrical outer wall at the outer periphery of the cylindrical flat disc.

Abstract: A method for forming foam, useful in mixing with concrete at a batching plant, includes the steps:(a) supplying a synthetic resinous foaming agent, in liquid form,(b) combining the foaming agent with water, to form a liquid mix, and pressurizing the mix,(c) adding pressurized gas to the mix,(d) sub-dividing the mix into droplets, in a confined flowing stream,(e) reducing the stream confinement,(f) whereby the droplets expand as foam, typically consisting of individual, gas filled bubbles.

Abstract: Disclosed is a method and apparatus for avoiding the clumping of fibers having diameters and lengths in certain ranges during dry blending of such fibers into a dry matrix material. The process comprises distributing fibers in a vaporous medium, and transporting fluidized fibers to a mixing zone containing a dry matrix material. Concurrently with stirring and blending of the dry matrix material with fluidized fibers, the fluidized fibers having been separated at least partially from a fluidized vapor are gradually introduced into the mixing zone. This process avoids the phenomena of "balling" that otherwise occurs with certain fibers.

Abstract: An apparatus for preparing bulk material and loading it into a truck comprises an elongated first frame having a lower end and adapted to stand via this end on the ground, a horizontal pivot at the lower end of the first frame, and an elongated second frame having a lower end pivoted at the pivot on the lower end of the first frame and an upper end. The frames are relatively pivotally displaceable between a transport position with one of the frames lying substantially within the other frame and a use position with the two frames extending at an angle to each other and the upper end of the second frame spaced above the ground by a distance equal to the loading height of the truck. A rail extends between the ends of the second frame and a bucket is displaceable along the rail between the ends of the second frame. In addition a doser is provided at the lower end of the first frame for filling the bucket, when it is at the lower ends, with bulk material.

Abstract: An apparatus for preparing bulk material and loading it into a truck comprises an elongated first frame having a lower end and adapted to stand via this end on the ground, a horizontal pivot at the lower end of the first frame, and an elongated second frame having a lower end pivoted at the pivot on the lower end of the first frame and an upper end. The frames are relatively pivotally displaceable between a transport position with the one of the frames lying substantially within the other frame and a use position with the two frames extending at an angle to each other and the upper end of the second frame spaced above the ground by a distance equal to the loading height of the truck. A rail extends between the ends of the second frame and a bucket is displaceable along the rail between the ends of the second frame. In addition a doser is provided at the lower end of the first frame for filling the bucket, when it is at the lower ends, with bulk material.

Abstract: The invention relates to a concrete mixer truck having a mixer drum adapted to be rotatably driven, a water container, a water conduit leading from the container to the drum, and a water pump. An object of the invention is to prevent the quality of a properly composed mixture contained in the drum from being deteriorated by unintentional addition thereto of water from the water container. This is accomplished by the use of a measuring device determining the drive torque for the mixer drum and a valve disposed in the water conduit and controlled by said measuring device in such a manner that the water conduit is closed when the drive torque exceeds a selectively adjustable rated value corresponding at least to the drive torque required for the empty drum.

Abstract: Disclosed is an apparatus for blending sand and solid additives selectively and at selected rates into water for injection into a well. The apparatus may be truck mounted, and includes a frame, an input line with manifold and pump, a mixing tank, a variable venturi nozzle for delivering water to the tank, and an output line with pump, manifold, and recycle line. An auger delivers sand to the mixing tank. Dry chemicals are fed to the tank adjacent the variable venturi nozzle where the water is turbulent, at low pressure, and in high shear. Liquid chemicals may also be pumped into the tank.

Abstract: In the preparation of a cement paste about 30 to 76% of the total water is added to the cement to form a funicular state, capillary state or slurry state, and the resulting mixture is kneaded so as to reduce the coagulated lumps of cement. Then the remaining quantity of water is added and the composition or mixture is kneaded again. Sand and/or gravel may be incorporated after the firstly kneaded mixture. The resulting cement paste, mortar or green concrete exhibits a small percentage of bleeding water and products prepared therefrom have a high compression strength.

Abstract: A roadable container or bin for storage of bituminous mix, at a road construction site and quickly erectable to an operative position, and which is characterized by a construction to avoid segregation of the particles in the bituminous mix, to avoid the need for a crane for its erection, and which includes a fuel compartment and a conveyor to dispense with the need for separate transportation of the same and producing a compact arrangement. The roadable storage container includes an elongated storage bin embodying a fuel tank, a bituminous mix compartment and a conveyor arranged to load the bituminous mix in that compartment, such as to avoid segregation of the constituents of the mix.

Abstract: A unique chassis arrangement for the mounting of equipment thereon and a unique equipment arrangement for a ground fed type blender means which is trailer mounted for use in well servicing operations.

Abstract: The present mixer for construction materials, such as a bituminous sludge, has a trough with an inlet and an outlet and two mixing shafts equipped with blades rotatably supported in the trough in parallel to each other. The blades are uniformly spaced along both shafts and staggered by 90.degree. around each shaft whereby the blades of each shaft follow one another in helical succession. Simultaneously the blades form four in line rows on each shaft. The arrangement of the blades is identical on each shaft except that the helix formed by the blades on one shaft has preferably a pitch direction opposite to that formed by the blades on the other shaft since the shafts rotate in opposite directions but convey in the same direction. The spacing between adjacent blades on both shafts is the same. However, blades located in the same plane extending perpendicularly to the longitudinal axes of the shafts are always spaced by 90.degree.

Abstract: A machine for mixing fireproofing material, concrete or the like includes a cylindrical shaped rotatable drum with a rotatably driven axial shaft having mixer blades attached to the shaft. The drum has an opening for loading and discharging material to be mixed and a pivotally mounted cover for closing the opening. The cover is provided with an aperture and a funnel-shaped member within the aperture for supporting a sack of material to be emptied into the drum. The funnel-shaped member is closed by the sack supported therein thus sealing the aperture during the sack emptying and material mixing processes. Liquid is supplied to the mixer drum through another opening in the cover, which opening is blocked in the mixing position of the drum to prevent the emission of dust particles therethrough. Latching means are provided for releasably securing the cover means in closed or partially open position, to facilitate cleaning of the mixing drum.

Abstract: The invention employs high volume air to form a cloud of coating material or material to be uniformly dispersed and conveys it to a plenum or common area of the receiving material which is coated. A mixer creates turbulence in the receiving material to turn up new receiving material to be coated. The invention has application to cement mixing, pigment and starch mixing, or even the mixing of atomized or vaporized fluid with on or more receiving materials to establish optimum surface connection for producing stronger cement or utilizing less materials for the same strength or optimizing the dispersion of the cloud introduced material with the receiving material.

Abstract: An apparatus for controlling the density of a plugging fluid including means for shaping the jet of the carrier liquid into a flat jet and rotating the jet about its longitudinal axis thereof in the area of mixing a dry cementation material.