A mixing vessel comprises a top portion (12) on an inverted conical middle portion (14) and a mixing chamber (16) below the middle portion. A launder (28) surrounds the upper part of the top portion. Solution from the launder is led to a vertical pipe (46) including a motor driven impeller (42) down to the level of the mixing chamber. Two vertically spaced feed pipes (46, 48) lead from the vertical pipe to enter the mixing chamber tangentially in opposite directions.

A mixing vessel comprises a top portion (12) on an inverted conical middle portion (14) and a mixing chamber (16) below the middle portion. A launder (28) surrounds the upper part of the top portion. Solution from the launder is led to a vertical pipe (46) including a motor driven impeller (42) down to the level of the mixing chamber. Two vertically spaced feed pipes (46, 48) lead from the vertical pipe to enter the mixing chamber tangentially in opposite directions.

The disclosed method proposes, for the mixing of a solid and dry granular mixture and a liquid bituminous binder, the solid and dry granular mixture being a mixture of two fractions of constituents, one of which is a coarse fraction including aggregates, the other fraction a fraction of submillimetre fines, that the mixing includes at least two consecutive mixing steps: an aggregate-preimpregnation step, consisting of mixing the coarse fraction of the granular mixture with a part of the bituminous binder, in a quantity at least sufficient for coating the aggregates and at least partially filling the open pore spaces of the aggregates; and a covering mixing step, which consists of mixing the preimpregnated coarse fraction of bituminous binder and originating from the first mixing step, with the balance of the bituminous binder, required for the manufacture of the electrodes, and with the fraction of fines of the granular mixture.

The apparatus can produce a product highly mixed and dispersed to a quasi-perfect level in a short time and has an extremely simple arrangement to reduce the processing cost. The mixing/dispersing apparatus for a liquid/liquid mixture includes an elongated thin tube into which the liquid/liquid mixture flows, an inlet provided at one end of the elongated thin tube to receive the liquid/liquid mixture, an outlet provided at the other end to discharge the liquid/liquid mixture, and a mixture pumping device for allowing the mixture to be fed under pressure into the elongated thin tube at a flow rate exceeding a critical Reynolds number. Two liquid storage boxes are provided such that one is located before the inlet provided at one end of the elongated thin tube and the other is located after the outlet, and a plurality of elongated thin tubes is provided between the liquid storage boxes.

An apparatus configured to process foodstuff materials can include an exterior tube, an inner shaft, and multiple differently shaped protrusions. The exterior tube can have a foodstuff inlet, an outlet, and a longitudinal axis, and can be configured to facilitate the conveyance of foodstuff materials along a material passage from the foodstuff inlet to the outlet. The inner shaft can be located within the exterior tube, can extend along the longitudinal axis, and can combine with the exterior tube to define the material passage. The inner shaft can be configured to be rotationally driven. The multiple differently shaped protrusions can be coupled to and extend from the inner shaft, and these differently shaped protrusions can be configured to process the foodstuff materials when the inner shaft is rotationally driven. Processing can include conveying, agitating, and/or hydrating the foodstuff materials.

The present disclosure relates to a process to produce aqueous dispersions of graphene stabilized by cellulose, offering an alternative to the current methods of dispersion of graphene. The present process provides the advantages that it uses biodegradable cellulose compatible with the environment and can be used in industrial processes in alkaline medium or in the absence of alkali; and when graphene is stabilized with cellulose in alkaline medium it becomes unstable when in contact with natural waters, thus precipitating and being easily removed or concentrated. In other embodiments, solids obtained by drying of the dispersions, once dried, can be redispersed in aqueous alkaline solution.

An assembly for insertion into a holder of a mixer, comprising: a dispenser having an exterior surface of which at least a band is symmetric about a longitudinal axis of the dispenser; and an adapter for surrounding at least the band of the exterior surface of the dispenser. The adapter comprises a closeable shell, the shell being configured to lock the dispenser in at least a region of the band so as to impede rotational slippage of the dispenser relative to the adapter about the longitudinal axis with the shell being closed. If the assembly is then locked to / engaged with the holder of a planetary mixer, this causes the assembly to undergo superimposed revolution and rotation movements in tandem with those of the holder, resulting in a desired level of mixing being imparted to the dispenser’s contents, which may improve homogeneity and predictability of the mixing results.

The present disclosure relates to a mixer for drawing and mixing a solid product, such as a powder, with a liquid from a tank. The mixer includes a drawing wand which has a drawing tip suitable for drawing the product and a mixing vat which has a rotation shape delimited by a side wall. The discharge tip of the drawing wand leads into the top of a vat and injects the product into the vat. In one form, the mixer includes a hydraulic circuit designed to circulate the liquid between the tank and the vat. The circuit includes at least one injection duct having at least one injection nozzle that leads into the top of the vat so that the liquid from the tank flows over the side wall of the vat.

Systems and methods presented herein generally relate to a method that includes receiving water at a centralized facility. The method also includes receiving sand from one or more sand mines at the centralized facility. The method further includes receiving one or more chemicals at the centralized facility. In addition, the method includes using processing equipment of the centralized facility to process the water, the sand, and the one or more chemicals to produce a fracturing slurry. The method also includes conveying the fracturing slurry from the centralized facility to one or more fracturing sites.

A multi-blender system for blending liquid and solid particulates together to prepare a fracturing fluid, the blender system can include a plurality of independently operable blender units each having components that can operate with either blender unit. Each component may be a modular blender component mounted to respective independent frames. The independent frames are configured to be independently removable, replaceable and movable to multiple positions in the blender system. In some aspects the multi-blender system can operate at different sand concentrations, instantaneously adjust flow rate to one or more of the components in either blender unit, provide control redundancy, and may continue to operate despite a failure of one of the major components.