Ingredient dispensing systems and methods in a fluid mixture system using a monitored chamber pressure are disclosed. One system includes a chamber, an inlet to the chamber, a set of ingredient reservoirs, in the chamber, storing a respective set of ingredients and sealed by a respective set of valve, a pressure source, and a controller. The system is programmed to set a pressure of the chamber using the pressure source and the inlet to the chamber. The system is also programmed to dispense, using the pressure, at least two ingredients from the respective set of ingredients by actuating at least two valves from the respective set of valves.

Machine (1) for distributing a product stored in a container (30) comprising a storage zone (2) delimiting locations (4) for housing a container (30), a metering station (5) delimiting a chamber (6) housing a support (7) for accepting a collecting vessel (33), this support (7) being positioned vertically in line with an opening (8) providing access to the chamber (6), which opening is arranged in an upper part (61) of the chamber (6), the machine (1) further comprising a system (10) for emptying each location (4) for housing a container (30) through the opening (8) providing access to the chamber (6), and a unit (14) for controlling the machine (1). The metering station (5) comprises a sensor (13) for detecting the presence of a collecting vessel (33) inside said chamber (6). The control unit (14) is configured to operate the machine (1) on the basis of data supplied by said sensor (13), and the metering station (5) is equipped with a circuit (15) for the circulation of gaseous fluid providing communication between the chamber (6) and the outside of said chamber (6) through a forced circulation of air.

In accordance with embodiments of the present disclosure, systems and methods for passively reducing or preventing dust formation in a particulate handling system are provided. In some embodiments, the handling system includes a silo for holding bulk material used to form a well fracturing treatment fluid. The silo may include a chute to deposit a portion of the bulk material from the silo into a blender and a cyclone mounted to the silo to separate dust from a pneumatic air flow and to release a substantially clean air into the atmosphere. In other embodiments, the handling system may include a horizontally oriented cyclone assembly mounted to a blender storage tank, cyclone assembly including a horizontally oriented cyclone separator to separate dust from a pneumatic airflow and a dust collection container to receive the dust and output the dust into the storage tank.

A mixing assembly includes a main flow conduit having an inlet end and an opposite outlet, a source of pressurized air at the inlet end, a container of stucco in fluid communication with the flow conduit, and a source of water in fluid communication with the flow conduit between the outlet and the container. The pressurized air draws stucco from the container into the flow conduit, and also draws water into the flow conduit to form an atomized slurry.

A matter displacement and mixing system having a mixing chamber for material to enter, and a vortex aperture that directs air into the mixing chamber at either a high velocity for violent shearing or lower velocity for gentle mixing. This would depend on the shape of the vortex aperture, or the pressure.

Disclosed are systems and methods for continuously producing dry water from silica and water and from silica, sodium bicarbonate, and water.

A diluted solution production method of the present invention is a diluted solution production method of producing a diluted solution of a second liquid by adding the second liquid to a first liquid, the method including feeding the first liquid to a first pipe; and controlling pressure in a tank that stores the second liquid to add, through the second pipe that connects the tank to the first pipe, the second liquid to the first liquid in the first pipe. Adding the second liquid includes measuring a flow rate of the first liquid or the diluted solution that flows through the first pipe; measuring a component concentration of the diluted solution; and controlling the pressure in the tank, based on the measured values of the flow rate and the component concentration, so as to adjust the component concentration of the diluted solution to a specified value.

A compressed air foam mixing system that has a mixing device connected to a discharge port of a tank. The mixing device receives fluid from the tank and pressurized air from the tank or alternatively directly from a source of pressurized air. The fluid and pressurized air are combined within the mixing device to form a foam.

Apparatus and methods for designing a system that measures deflection at multiple points and in various axes and how it relates to flow measurement are described. A system for continuously measuring the mass flow of a media includes one or more cartridges, one or more displacement sensing devices, and a processor. The one or more cartridges are connected serially between an inflow and outflow media pipe. The one or more displacement-sensing devices is configured to detect displacement changes of the one or more cartridges at two or more separate points on the cartridge(s) when the media flows through the cartridge(s). The processor is configured to calculate the flow of the media based on the detected displacement changes of the one or more cartridges at the one or more separate points.

A tubular structure for producing droplets and a method of using the tubular structure to produce droplets are provided. The tubular structure includes microchannel structures, and is used for droplet generation, droplet collection, nucleic acid amplification and/or in situ droplet detection, etc.