A device and apparatus for mixing and dispersing a solid and a liquid are provided. The device includes a powder pulverizing mechanism fixedly connected to a main shaft. The powder pulverizing mechanism is located in a powder feed chamber. The powder feed chamber is provided with a powder feed port. A liquid feed chamber is arranged on an outer side of the powder feed chamber. The liquid feed chamber is provided with a liquid feed port, and the liquid feed chamber is provided therein with a dispersing mechanism fixedly connected to the main shaft. A lower portion of the liquid feed chamber and a lower portion of the powder feed chamber are separately in communication with an upper portion of a mixing chamber. The mixing chamber is provided therein with an impeller fixedly connected to the main shaft.

Disclosed is a dispersing device, including a first shear device and at least two second shear devices, one of the first shear device and the second shear device is a shear stator and the other is a shear rotor. The first shear device includes a shear inner ring, a shear outer ring and an annular isolation board. The shear inner ring is provided with a plurality of first radial through holes; the shear outer ring is provided to surround outside the shear inner ring, and is provided coaxially with the shear inner ring and connected in linkage with each other; and the shear outer ring is provided with a plurality of third radial through holes. The annular isolation board is located between the shear inner ring and the shear outer ring, and both opposite ends of the annular isolation board form shear receiving grooves, respectively.

The present invention relates to apparatus for manufacturing at least one liquid, by dissolving or suspending powders in solvents. The apparatus may be arranged for inclusion in a pellet coating system to supply the liquid to a downstream apparatus such as a Post Pellet Liquid Application (PPLA, 44). The apparatus includes: a mixing system, comprising a mixing pump (27), a mixing vessel (33) and piping for mixing substances located in the mixing vessel (33) by liquid recirculation; solvent supply means, comprising a supply tank (37) arranged to supply solvent to the mixing vessel (33); a feeding system, comprising a Hopper (32) for storing a first particulate material, a ramp arranged above a weighing tray (34) and a hopper vibrator (3.1) for feeding a first particulate material to the weighing tray (34); a weighing system located above the mixing vessel (33), the weighing system comprising the weighing tray (34), a weighing tray loadcell (5) for weighting a first particulate material and a weighing tray vibrator (4) for feeding a first particulate material to the mixing vessel (33); a blending vessel (40) to which a liquid comprising the first particulate material is transferred from the mixing vessel (33) and to which additional solvent may be added to reach a desired concentration of the first particulate material in the liquid; optionally a day tank (39) to which a liquid comprising the first particulate material is transferred from the blending vessel (40.1) for storage; and a control system, wherein a Programmable Logic Controller (PLC) (25) is arranged to receive signals from the weighing system and to control operation of at least part of the feed system according to the signals received from the weighing system to deliver a target mass of first and at least a second particulate material to the mixing vessel (33). The apparatus for manufacturing at least one liquid according to the invention may be connected to system for coating pellets, such as feed pellets. The system for coating pellets may include: the apparatus for manufacturing at least one liquid; a pellet source; a pellet coating device; means for feeding at least one liquid from the manufacturing apparatus to the pellet coating device; wherein the pellet coating device is arranged to apply the or each liquid to at least some of the pellets received from the pellet source. The present invention includes a method for manufacturing a liquid, by dissolving or suspending powders in solvents.

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.

Mixing systems that include a mixer housing and one or more disk assemblies for mixing and processing materials is disclosed. The disks rotate to mix an additive into the material and to carry agglomerated solids toward a discharge of the mixing system. The disks may have a plurality of fingers or lobes which extend from a central portion of the disks.

Device 1 for mixing the contents of a tank 10 comprising a first pipe connecting body 20 arranged on a connecting flange 14 of a tank 10; a riser pipe 40 extending through the first pipe connecting body 20 into the tank; a mixing pipe 50 extending through said first pipe connecting body 20 into said tank; and a pump 60 whose outlet 64 can be connected at least to the mixing pipe 50 and whose inlet 62 can be connected both to the first pipe connecting body 20 and to the riser pipe 40. Further a method for mixing the contents of a tank is claimed.

The invention relates to a method for manufacturing a liquid acid concentrate for hemodialysis machines, with the following steps. In a preliminary step a water source (120), an acid source (130), an electrolyte tank (140) containing a mixture of electrolytes in exactly the quantity needed for the manufacture of the liquid acid concentrate, and a sodium chloride source (150) are connected to a mixing tank (110). During Step a), the quantity of water needed for the manufacture of the batch of liquid acid concentrate is introduced into the mixing tank (110). At Step b), the quantity of acid needed for manufacture the liquid acid concentrate is introduced into the mixing tank (110), the solution is stirred until a homogeneous solution is obtained. Step c) is to repeat Sub-steps c1) and c2) until the electrolyte mixture contained in the electrolyte tank is completely dissolved. At Sub-step c1) part of the solution contained in the mixing tank (110) is transfered into the electrolyte tank (140) containing the electrolyte mixture, then at Sub-step c2) the solution contained in the electrolyte tank (140) is transfered into the mixing tank, leaving the still solid constituents in the electrolyte tank. At Step d) the quantity of sodium chloride needed to manufacture the liquid acid concentrate is introduced into the mixing tank (110). Finally, at Step e), the solution is stirred and recirculated by taking it from the bottom the mixing tank (110) and reintroducing it at the top of the mixing tank until a homogeneous liquid acid concentrate is obtained. Steps a) to d) can be performed in any order, Step a) preceding always Step c).

A gel production system and method, in which a powder configured for mixing with an aqueous solvent such as water to form a gel is metered into a pressurized air stream to fluidize the powder, and the fluidized powder is injected into a pressurized water supply. The fluidized powder is at a greater pressure than the water supply, helping to hydrate the fluidized powder in the water, and the water supply plus fluidized powder are subsequently mixed in a mixing chamber to form the gel.

An alumina powder containing a hydroxycarboxylic acid and an alkaline component contains amorphous alumina, pseudoboehmite, or boehmite, and satisfies all of (1) to (4). (1) A colloidal dispersion A with 2.5% by mass of Al.sub.2O.sub.3 consisting of the alumina powder and distilled water is free from precipitate, and has a light transmittance of at least 80% measured at a wavelength of 500 nm and an optical path length of 10 mm. (2) A colloidal dispersion B with 15% by mass of Al.sub.2O.sub.3 consisting of the alumina powder and distilled water is free from precipitate. (3) The dispersions A and B have a pH in a range of 5 to 8. (4) A colloidal dispersion C with 2.5% by mass of Al.sub.2O.sub.3 consisting of the alumina powder and methanol is free from precipitate, and has a light transmittance of at least 80% measured under the above condition.

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.