A slurry injection system includes low and high pressure clear fluid manifolds. Low pressure clear fluid is pressurized and communicated to high pressure manifold. A blender unit communicates slurry through a sensor system that generates a flow rate signal and a density signal of the low pressure slurry. The slurry pressurizer is in fluid communication with the high pressure clear fluid manifold through a bypass pump, a mixer, the blender unit and the low pressure clear fluid manifold. The slurry pressurizer forms high pressure slurry that is communicated to the mixer and communicates fluid to the low pressure clear fluid manifold. The mixer mixes the high pressure slurry and high pressure clear fluid from the high pressure clear fluid manifold to form a mixture that is communicated to a slurry injection site. A controller controls the bypass pump using the flow rate and density to control a density of slurry.

A slurry injection system includes low and high pressure clear fluid manifolds. Low pressure clear fluid is pressurized and communicated to high pressure manifold. A blender unit communicates slurry through a sensor system that generates a flow rate signal and a density signal of the low pressure slurry. The slurry pressurizer is in fluid communication with the high pressure clear fluid manifold through a bypass pump, a mixer, the blender unit and the low pressure clear fluid manifold. The slurry pressurizer forms high pressure slurry that is communicated to the mixer and communicates fluid to the low pressure clear fluid manifold. The mixer mixes the high pressure slurry and high pressure clear fluid from the high pressure clear fluid manifold to form a mixture that is communicated to a slurry injection site. A controller controls the bypass pump using the flow rate and density to control a density of slurry.

A single-pass flow-through dry chemical mixing trailer for use with a well has a trailer, a refillable liquid storage tank, a main liquid storage tank valve, a liquid storage tank inlet valve, an onboard power supply, a motor with a fuel supply, a transmission, a fluid circulation loop, a self-priming bidirectional flow alternating centrifuge pump, an automated mixer assembly, and a discharge tank. The refillable liquid storage tank prevents backflow to the self-priming bidirectional flow alternating centrifuge pump while flowing the homogenized slurry to the well and the dry chemicals introduced at the automated mixer are subjected to high shear forces, incorporating the dry chemicals into the liquid with increased dispersion and reduced agglomeration.

A single-pass flow-through dry chemical mixing trailer for use with a well has a trailer, a refillable liquid storage tank, a main liquid storage tank valve, a liquid storage tank inlet valve, an onboard power supply, a motor with a fuel supply, a transmission, a fluid circulation loop, a self-priming bidirectional flow alternating centrifuge pump, an automated mixer assembly, and a discharge tank. The refillable liquid storage tank prevents backflow to the self-priming bidirectional flow alternating centrifuge pump while flowing the homogenized slurry to the well and the dry chemicals introduced at the automated mixer are subjected to high shear forces, incorporating the dry chemicals into the liquid with increased dispersion and reduced agglomeration.

A mixing apparatus, comprising a drive unit (1) with a drive (10) and a shaft (11) which is pivotable about a pivot axis (A) and which is operatively connected to the drive (10), a pivot receptacle (2) which is arranged on the shaft (11), wherein the pivot axis (A) is substantially horizontally aligned, wherein the pivot receptacle (2) comprises a base (20) on which receptacles (21, 22) are provided which extend away from the base (20) and into which holders (3) for containers (7) are insertable.

A feedwell assembly (1) having a feedwell (3) and feed dilution apparatus (27) is characterised in that the feed dilution apparatus (27) includes a centrifugal impeller (16) arranged within a pump housing (9). The pump housing is arranged below a weir box (12) having an upper opening and a spill lip (12b). The spill lip (12b) is arranged at an upper periphery of the weir box (12). The spill lip (12b) is configured to be arranged below an air-liquid interface (20) during operation such that there is a depth of submergence (26) between the spill lip (12b) and the air-liquid interface (20).

The present invention relates to a method and an arrangement for dissolving starch. Specifically, the present invention relates to a method for dissolving starch by introducing mechanical force to at least partially gelatinized aqueous starch.

A method of determining a dry proppant concentration in a fracturing fluid includes combining a wet proppant with a carrier fluid in a mixer to form the fracturing fluid. The dry proppant concentration of the fracturing fluid leaving the mixer is determined using a moisture content of the wet proppant entering the mixer, wherein use of the moisture content prevents overestimation of the dry proppant concentration. The method can be preformed using a system for injecting fracturing fluid into a borehole, the fracturing fluid including a carrier fluid mixed with a wet proppant including a dry proppant dampened with a dampening liquid. The system includes a mixer operable to receive and mix the carrier fluid and the wet proppant to form the fracturing fluid, a frac pump operable to inject the fracturing fluid into the borehole, and a control system comprising a processor operable to receive a moisture content of the wet proppant before being mixed with the carrier fluid and programmed to determine a dry proppant concentration of the fracturing fluid formed in the mixer using a moisture content of the wet proppant, wherein use of the moisture content prevents overestimation of the dry proppant concentration.

An electrical control system for slurry mixing includes a processing module, an input module, a display module and an inspection module. The input module is configured to input the configuration information and send an action command and the configuration information to the processing module. The inspection module is configured to obtain the status information and send the status information to the processing module. The processing module is configured to receive the configuration information and the action command from the input module and the status information from the inspection module, form a production action according to the configuration information or the action command, and then send the configuration information, the action information and the status information to the display module. The display module is configured to receive the configuration information, the action information and the status information, and display the configuration information, the action information and the status information.

A system and method for mud mixing using a container to hold a joint compound and the water. The container having a lid to keep the container shut and preventing the liquids from escaping wherein the container may then be shaken by the user to mix the joint compound with the water. The user then may remove lid and pull on a rod and plate connected to one another at the bottom of holding container. Rod and plate act as a pressure seal, whereby when the rod is pulled all of the mud may be removed from the container and placed into a pan for use.