Beloit Technologies, Inc.

Other

Knowaste International, LLC

Montague Industries, Inc.

David B Grimes

Richard P Hebert

Embodiments of the present disclosure include a method for separating a product comprising a super absorbent polymer, a fiber and a plastic to separate the product into components thereof, the method comprising adding water to the product, and pressing the product in order to separate the product into components comprising a plastics component and a super absorbent polymer and fiber component. Other methods of the present disclosure include a method for producing a reusable plastic, reusable paper fiber stream and a reusable super absorbent polymer from the treatment of a product comprising a super absorbent polymer, a fiber and a plastic. Still other embodiments of the present disclosure include a method for the treatment of wet super absorbent polymer, comprising salt assisted dehydration.

Methods for separation and conditioning of products containing super absorbent polymers

Fluid is removed from the cleaning element of such as a sponge mop or string mop by inflating a bladder or like expansible member which is positioned in an enclosure adjacent the cleaning element, causing the expansible member to expand into contact with the cleaning element, thereby compressing the cleaning element for squeezing fluid therefrom.

Cleaning wringing and drying apparatus

Embodiments of the present disclosure include a method for separating a material comprising a super absorbent polymer, a fiber and a plastic to separate the material into components thereof, one method comprising shredding the material, adding salt to the material, and agitating the material, wherein the material does not comprise a slurry.

Separation of materials comprising super absorbent polymers using reduced water

Cleaning apparatus

The conventional infeed head and inverted cone of a Uniflow cleaner are connected by a generally cylindrical channel dam segment which has an annular inwardly extending channel dam. The narrow end of the inverted cone is connected to a separation body through which a vortex finder extends into the inverted cone. The light reject particles are removed from the input flow through the vortex finder. Accepts and heavy rejects flow into an inverted hydrocyclone chamber within the separation body defined between an outer cylindrical ring and an inner cylindrical ring and the vortex finder. An annular heavy rejects chamber is defined exterior to the outer ring, and fluid is drawn off tangentially therefrom. Accepts flow downwardly though the inner ring into a bowl beneath the separation body, where they are removed from an accepts outlet. The cylindrical or concave surfaces of the separation body are economical to manufacture.

Through-flow hydrocyclone and three-way cleaner

Fiber-containing stock is fed into a hydrocyclone with a wall structure which generates quasi-laminar flow within the hydrocyclone housing. A piezoelectric oscillator introduces ultrasonic waves into the quasi-laminar flow to achieve high volume separation of heavyweight particles from the acceptable fibers with improved differentiation.

Vibratory cleaner

The centrifugal cleaner of this invention is of the type having an inverted cylindrical cone, with a tangential inlet at the top and an outlet at the bottom. The improvement consists of placing a ring or flow smoothing means on the inside surface of the cylindrical cone about one-half the diameter of the base of the cone down from the inlet. The ring forces the stock injected into the centrifugal cleaner to flow towards the axis of the cone away from the inside cone wall. Once the stock passes over the dam it once again flows to the inner wall of the cone. The stock, in being forced to flow over the ring, is made uniform, eliminating spiraling of the flow which has been found to decrease the efficiency with which separation within the cleaner is accomplished.

Channeling dam for centrifugal cleaner

A mixture of air and paper stock made from recycled paper from which the ink particles have been chemically released is injected into a cylindrical processing vessel. Added surfactants create a foam from the air as it rises through the stock and cause the ink particles to adhere to the air bubbles, resulting in a foam containing a concentrated fraction of the ink particles with some included fibers. The foam rises to the top of the vessel, and carries with it ink particles. Additional air injection ports can be used to increase the amount of foam generated and the amount of ink removed. Flow of stock and foam from the vessel can be controlled by adjusting valves on the stock and foam outlets. Flotation sensors allow the foam head to be maintained at the stock level by controlling the rate foam is withdrawn through the foam outlets.

Froth flotation process for deinking wastepaper using multiflow

Multiflow pressurized deinking apparatus

A cleaner receives input pulp stock in an inverted conical chamber, which acts as a hydrocyclone to direct heavyweight reject flows outwardly, lightweight reject flows into a discharging vortex chamber and accept flows in between to a vortex finder for removal. The cleaner body has an inverted hydrocyclone chamber formed beneath the inverted cone and a ceramic splitter below which skims off the heavyweight reject flow from the accept flow, and diverts it into the inverted hydrocyclone chamber. A portion of the diverted heavyweight reject flow is removed through a toroidal heavyweight rejects relief outlet, but the larger fraction of the heavyweight reject flow is recirculated within the inverted hydrocyclone chamber. Because the chamber narrows as it extends upwardly, the flow increases in speed and angular velocity to such an extent that the flow within the inverted hydrocyclone chamber matches the flow passing by the chamber, thereby preventing turbulent mixing.

Cleaner with inverted hydrocyclone

An apparatus is described that converts a manual adjustment procedure of a lathe on an existing pulp-grinding machine into an automated electronic procedure. The pre-existing lathe has a sharpening burr affixed to a movable plunger. The plunger is manually lowered by a hand crank until the burr contacts a surface of a pulp-grinding stone. The present invention replaces the hand crank with a reversible, variable speed motor. A transducer is affixed to the plunger wherein electric signals are produced in response to vibrations resulting from contact between the burr and the grinding stone. The signals are processed by a standard programmable controller to control the motor. An electronic encoder electrically measures the position of the plunger and communicates the position to the programmable controller. When the burr on the plunger contacts the grinding stone, the motor is programmed to automatically stop. The controller can then direct the motor to move the plunger the precise depth required for a specific burr, prior to the lathe making a horizontal pass along the stone. The controller records the contact position of the plunger for the next sharpening procedure.

Accuset micrometer lathe

A novel retrofit process for converting the hydraulic lathe of an existing pulp-grinding machine into the new electric one is described. This process includes utilization of the pre-existing hydraulic cylinder as a supporting housing and shield for a major portion of the drive assembly for the electric lathe. In the preferred 'retrofit' embodiment, the drive for the lathe comprises a ball-screw assembly housed inside the cylinder, after the cylinder has first been evacuated. This drive assembly includes a longitudinally fixed, but rotatable 'power screw' that is supported by opposite ends of the cylinder. A variable speed, reversible motor is located outside one of the cylinder ends and is coupled to the screw to selectively rotate it. A threaded collar is located inside the cylinder and straddles the screw. It carries a pair of parallel, spaced rods that extend through the end of the cylinder that is opposite the cylinder's 'motor end'. These rods are connected to a yoke which, in turn, is connected to the standard carriage-carrying burr mandrel or 'dressing wheel' used in the prior hydraulic lathe.

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Greenfield, MA, United States of America

David B Grimes