The density of slurries produced by mobile blender for injection into oil and gas wells is controlled using a microwave flow meter. Liquid having a known density is provided to the blender. The liquid is flowed through a conduit and discharged into a blending tub on the mobile blender. The amount of liquid introduced into the tub is measured with a liquid flow meter. Solid particulates having a known density are provided to the blender. The particulates are discharged into the tub by allowing them to fall into the tub from a conveyor on the mobile blender. The amount of the particulates falling into the tub are measured with a microwave flow meter. The flow of the liquid and the particulates are controlled in response to the measurements to blend a slurry having a predetermined density. The slurry is provided for injection into the well.

A reaction vessel includes a vessel that accommodates a substance, a stirring device that stirs the substance, and a bypass that causes the substance to circulate outside the vessel, in which one end and the other end of the bypass are connected to the vessel in a position at which the substance circulates in the bypass when the substance is stirred by the stirring device.

A longitudinal sealer includes a housing, an arm, and a heating element. The housing is configured to be installed in a foam-in-bag system. The arm is movably coupled to the housing. The heating element has a leading edge exposed through an exterior surface of the arm. A position of the arm with respect to the housing is controllable so that the arm is movable between a first location where the leading edge of the heating element is not in contact with a film in a film path of the foam-in-bag system and a second location where the leading edge of the heating element is in contact with the film in the film path of the foam-in-bag system.

An automated system for automatically mixing and verifying paint is described. The system may include a kiosk configured to automatically add a paint of a second color to a paint container holding a first color of paint so as to produce a requested third color of paint. The system may further verify that the mixed paint color is the requested paint color using a laser to perform verification.

A method and system for dynamically determining and adjusting a dispersion stability of particles in a suspension. The system includes a thermal imaging camera configured to determine movement of the particles in the suspension; and a mixing device, wherein the mixing device is configured to stir the suspension to dynamically maintain the suspension at a desired dispersion stability and temperature.

The present disclosure discloses a process for the continuous manufacture of a liquid pharmaceutical composition, the process comprising providing a mixing unit, feeding a therapeutic agent and a liquid vehicle to the mixing unit, operating the latter thereby mixing the agent and the vehicle into a liquid pharmaceutical composition, discharging the composition into a holding unit.