Systems and methods for managing bulk material efficiently at a well site are provided. The disclosure is directed to a container support frame that is integrated into a blender unit. The support frame is used to receive one or more portable containers of bulk material, and the blender unit may include a gravity feed outlet for outputting bulk material from the containers directly into a mixer of the blender unit. The blender unit with integrated support frame may eliminate the need for any subsequent mechanical conveyance of the bulk material (e.g., via a separate mechanical conveying system or on-blender sand screws) from the containers to the mixer. As such, the integrated blender unit may be lighter weight, take up less space, and have a lower cost and complexity than existing blenders.

A module includes a housing, a sealing feature, a locking feature, and an agitator. The housing has an opening separating inner and outer surfaces and a boss that extends through the housing such that part of the outer surface forms an inner bore of the boss having a terminus pointing toward the opening. The agitator has a base, a shaft, and a mixing element coupled to the base such that the base, in cooperation with the sealing feature, circumferentially seals the opening of the housing to form a cavity defined by the inner surface. The shaft passes through the inner bore. The locking feature when engaged permits independent or simultaneous translational and rotational movement of the shaft while an area between the terminus of the boss and the shaft remains mechanically sealed during the movement against liquid or powder encroachment into a clean area of the inner bore.

Shown and described is a device (100) for dosing and/or preparing a mixture of substances, in particular a medium or a buffer, the device (100) comprising: at least one first container (102), which is designed to receive at least one solid component, at least one first dosing device (104) for dosing the at least one solid component, the first dosing device (104) being connected to or can be connected to the first container (102), at least one fluid connection (110, 110′) to connect to at least one second container (103, 103′), which is designed to receive at least one fluid, and/or a fluid line for supplying a fluid, and at least one second dosing device (108, 108′) for dosing the at least one fluid, the second dosing device (108, 108′) being connected or connectable to the second container (103, 103′) or to the fluid line, respectively. the fluid line, wherein the at least one second container (103, 103′) and/or the at least one second dosing device (108, 108′) are replaceable and are developed as disposable articles, and/or wherein the at least one first container (102) and/or the at least one first dosing device (104) are replaceable and are developed as disposable articles.

Disclosed are a fully electric-drive sand-mixing apparatus and an automatic control system therefor. The fully electric-drive sand-mixing apparatus comprises a foundation (01); and a suction pump (02), a suction pump driving electric motor (03), a suction manifold (04), a mixing stirrer (05), a mixing stirrer driving electric motor (06), a dry-ingredient-adding device (07), a dry-ingredient-adding device driving electric motor (08), a liquid-adding device (09), a liquid-adding device driving electric motor (10), a sand-conveying device (11), a sand-conveying device driving electric motor (12), a discharge pump (13), a discharge pump driving electric motor (14), a discharge manifold (15), a frequency converter placement room (16) and an operation room (17), which are fixedly connected to the foundation (01). The suction pump driving electric motor (03), the mixing stirrer driving electric motor (06), the dry-ingredient-adding device driving electric motor (08), the liquid-adding device driving electric motor (10), the sand-conveying device driving electric motor (12) and the discharge pump driving electric motor (14) are fixedly and electrically connected to the suction pump (02), the mixing stirrer (05), the dry-ingredient-adding device (07), the liquid-adding device (09), the sand-conveying device (11) and the discharge pump (13), respectively.

A passive gas exchange transfer apparatus for exchanging carbon dioxide from a flue gas to a water supply is disclosed. The apparatus includes several upper rods and several lower rods to hold a membrane in place. The membrane provides increased surface area for the gas and the water to meet. The upper rods may be the source of the water supply, and the lower rods may be the source of the gas. The upper rods may disperse the water onto one side of the membrane, and the lower rods may disperse the gas onto the other side. The two may therefore meet at the surface created by the membrane as gravity draws the water downward, and convection draws the gas upward.

The application is directed to a system and method for mixing fluid and dry material to produce fluid mixture compositions. The system may be provided on a portable platform for transport of the system for use at different locations or the system may be provided as a permanent installation. The system includes a first module for receiving fluid into the system and an optional second module attachable to the first module for providing dry material to be mixed with the fluid received into the system. The fluid mixture compositions produced by the system can be conveyed out from the system to one or more target locations.

A bone cement applicator comprising a cartridge with an internal space. The cartridge has a head with a dispensing opening for expulsion of bone cement, a dispensing plunger, a receptacle mobile in the cartridge, and a mixing rod with a mixer fastened to it and arranged in the internal space of the cartridge. The mixing rod is detachably connected, on a side opposite from the mixer, to a front side of the receptacle that faces the cartridge head. When the mixing rod is detached from the receptacle and the receptacle is propelled in the direction of the cartridge head the mixing rod can be pushed into the receptacle. A method is also disclosed for production of a bone cement using the bone cement applicator.

A module includes a housing, a sealing feature, a locking feature, and an agitator. The housing has an opening separating inner and outer surfaces and a boss that extends through the housing such that part of the outer surface forms an inner bore of the boss having a terminus pointing toward the opening. The agitator has a base, a shaft, and a mixing element coupled to the base such that the base, in cooperation with the sealing feature, circumferentially seals the opening of the housing to form a cavity defined by the inner surface. The shaft passes through the inner bore. The locking feature when engaged permits independent or simultaneous translational and rotational movement of the shaft while an area between the terminus of the boss and the shaft remains mechanically sealed during the movement against liquid or powder encroachment into a clean area of the inner bore.

A droplet generating system includes a reservoir configured to receive an organic fluid and an aqueous fluid, a barrier separating the reservoir into a first reservoir portion and a second reservoir portion, a tube, and an indexer. The barrier is capable of preventing the aqueous fluid from entering the second reservoir portion from the first reservoir portion. The tube is disposed near the barrier, and the tube has a microfluidic channel. The indexer guides the aqueous fluid and the organic fluid into the microfluidic channel so as to form droplets of the aqueous fluid.

A bone cement applicator comprising a cartridge with an internal space. The cartridge has a head with a dispensing opening for expulsion of bone cement, a first thread, a dispensing plunger, a threaded tube having a counter thread engaging the first thread, a receptacle mobile in the threaded tube, and a mixing rod with a mixer fastened to it and arranged in the internal space of the cartridge. The mixing rod is detachably connected to the receptacle and is guided through a feedthrough in the dispensing plunger and is supported in the feedthrough so as to be axially mobile. When detached from the receptacle, the mixing rod can be pushed into the receptacle when the receptacle is propelled in the direction of the cartridge head. A method is also disclosed for production of a bone cement using the bone cement applicator.