A full-electric drive cementing control system is disclosed. The system includes: a water supply system for supplying clear water; an ash supply system for supplying dry ash; a slurry mixing system for performing a slurry mixing operation to form slurry; a plunger pump for pumping the slurry to a cementing operation object; and a control assembly for controlling, in response to a received cementing operation instruction, connection of a pipeline between an outlet of the water supply system and an inlet of the slurry mixing system and a pipeline between an outlet of the ash supply system and the inlet of the slurry mixing system, controlling, according to a preset slurry mixing parameter, the slurry mixing system to mix the clear water and the dry ash to form the slurry required for a cementing operation, and controlling, according to a preset perfusion parameter, a driving motor to drive the plunger pump to work, the cementing operation instruction carrying the preset slurry mixing parameter and the preset perfusion parameter.

A preparation apparatus includes a first tank, a second tank, a preparation tank, and a computer having a hardware processor. The first tank contains a first liquid. The second tank contains a second liquid having a lower viscosity than the first liquid. The preparation tank stirs the first liquid supplied from the first tank and the second liquid supplied from the second tank to prepare a preparation liquid. The hardware processor measures a viscosity of the first liquid based on a supply time required to supply a specified amount of the first liquid at a constant pressure from the first tank to the preparation tank, and supplies an amount of the second liquid to the preparation tank based on the measured viscosity of the first liquid so as to cause the preparation liquid to have a target viscosity.

A system for providing deionized (DI) water with a dynamic electrical resistivity is provided. The system includes plural DI water sources, source pipes, flow control devices, a merging pipe and a flow controller. The DI water sources respectively have different electrical resistivities. The source pipes are respectively connected to the DI water sources in a one-to-one manner. The flow control devices are respectively disposed in the source pipes in a one-to-one manner. The merging pipe joins the source pipes. The flow controller includes a resistivity sensor disposed in the merging pipe, and the flow controller is configured to control a flowrate of the DI water through the source pipes.

The invention relates to a milk-frothing device with a dynamic mixing unit having a stator and a rotor which can be set in rotation relative to the stator, rotor and stator being configured such that milk and air can be conducted firstly to the dynamic mixing unit, subsequently, for frothing-up in the dynamic mixing unit, can be subjected multiple times to a shearing effect by rotation of the rotor relative to the stator and finally can be discharged out of the dynamic mixing unit.

A method for obtaining a chemical concentration from a chemical composition and a fluid includes introducing the fluid through ports in a manifold diffuse member positioned adjacent a chemical composition and adjusting, with a fluid valve, characteristics of the flow of the fluid through the ports in the diffuser manifold to obtain and maintain a chemical concentration. The amount of liquid allowed through the ports modifies the turbulence of the liquid, thereby modifying the erosion rate of the chemical composition. An apparatus for adjusting characteristics of the flow of a fluid contacting a solid product to form a product chemistry includes a diffuser manifold having a manifold diffuse member comprising ports therethrough and a fluid valve for controlling the flow rate of a fluid moving through the plurality of ports and diverting the fluid through various flow paths.

A mixer system for producing topcoat compositions and filling compounds which has a volumetric or gravimetric metering plant as a mixing apparatus and at least the following components (a) to (d): at least one pigment-free component (a) for producing at least one topcoat composition (A); at least one component (b) different from (a), for producing at least one coating composition (B) used as a filling compound; a plurality of different pigment pastes (c) different from the components (a), (b), and (d), which in each case independently of one another include at least one binder (c1), at least one organic solvent (c2), and at least one pigment (c3); and a plurality of different, binder-free dye solutions (d). A process for producing topcoat compositions and/or filling compounds with the mixer system, and a method of repairing defects on or in wood with the topcoat compositions and/or filling compounds.

A mixing unit for ready-to-use flushing solutions with a mixing chamber, with which conduits for ultrapure water and for concentrate communicate, in order to form a ready-to use flushing solution therein is characterized in that the concentrate is filled into a concentrate bag, which is provided with a concentrate bag connector, which is connectable to a connector on the mixing unit, that the connector on the mixing unit is covered by a pivotal concentrate valve in its closed state so that a sealed flushing space is defined around the connector and that a flushing liquid conduit communicates with the connector on the mixing unit so that flushing liquid is conveyable into the flushing space, which can completely clean the connector internally and externally.

A system and process for defining, blending and monitoring fresh water with subterranean produced formation fluids, with particular constituents of the blended waters being controlled for proper use in gel-type hydraulic fracturing operations. On-site measurements and calculations of clay stabilization replacement, through a Potassium Chloride (KCl) Equivalency calculation, provide feedback on water constituent adjustments that may be needed just prior to the gel-based hydraulic fracturing process. This assures adequate gel cross-linking times, delayed gel cross-linking times, and clay stabilization in the formation to be fractured.

A fluids delivery system may include a mixing system configured to deliver a fluid to a wellbore; a dry component delivery system configured to deliver a dry component to the mixing system; a liquid additive system configured to deliver a liquid component to the mixing system; and a controls system configured to control the mixing system, the dry additive system and the liquid additive system to produce the fluid.

The present disclosure provides improved systems and methods for the blending of active agents into process fluids.