A stirring device for wastewater includes a drive device having a drive shaft extending vertically in the assembled state, a stirring body mounted on the drive shaft, a safety bearing in which a free end of the drive shaft is rotatably held, a slide sleeve is mounted on the free end of the drive shaft, and a device for detecting a state of wear of the slide sleeve. The device for detecting the state of wear includes a sensor mounted on the safety bearing and an evaluation device for evaluating the signals delivered by the sensor.

The present invention utilizes a high-speed intensive mixer in fluidizing type solid phase neutralization reactor to blend solid state alkali hydroxide with any humic acid sources. The final product is a dry humic acid salt. The purpose of this innovative method is to eliminate a series of complicated unit operations commonly employed by the traditional process. These removed steps may include dissolving caustic soda, mixing in a paste like formation, extrusion, granulation, drying, and grinding, etc. The new invention contributes to a simplified flowsheet, resulting in sharply reduced equipment investment, the required plant space, and labor and energy costs. All these factors coupled with increased productivity will drastically lower the overall production cost. Also the reduction of dust pollution will greatly minimize the impact in environmental protection and safety issues.

A flexible package for storing and transporting bulk goods. Such flexible package can have material-impermeable connections for spreading out sections of the flexible package wall so as to correspond to a predefined shape. One or more docking connections for filling and discharging can be included. The flexible package can have a square bottom and adjacent to the sides thereof triangular stubs as lateral walls. Together, such lateral walls can form an upwardly open pyramid shape. Opposite the bottom, a coupling element can be connected in such a manner that it presents the flexible package so as to be sealable in a standardized manner on open-sided ends of the lateral walls.

Mixer systems 200 are provided. A representative mixer system 200 includes a power circuit 105 that powers the mixer apparatus 200; a motor 110 that is electrically coupled and powered by the power circuit 105; and a rotating structure 115 that is mechanically coupled to the motor 110, which rotates the rotating structure 115. The rotating structure 115 includes container chambers 230a,b that a container 240a,b is aligned therein, wherein the rotation of the container 240a,b mixes substances that are contained in the container 240a,b to have a homogeneous or heterogeneous mixture.

A nitrous oxide gas mixer includes at least one mixing chamber having at least one nitrous oxide gas connection and at least one oxygen gas connection for introduction of oxygen gas and nitrous oxide gas and at least one flow rate controller, by which a volume flow of the two gases can be respectively adjusted separately and/or together. At least one O.sub.2 emergency button is mounted to the mixing chamber for emergency flooding the mixing chamber with oxygen gas and/or with ambient air.

A carbonation machine includes a pneumatic chamber with a movable wall. The wall moves outward to depress a pin of a gas release valve of a gas canister that is held in a canister holder of the machine when air pressure in the chamber is increased. An air release valve is closable to retain air in the chamber. An air pump is operable to pump air from the ambient atmosphere into the chamber so as to increase air pressure in the chamber. A controller is configured to close the air release valve and to operate the air pump to increase the air pressure in the chamber to move the movable wall outward to open the gas release valve of the canister to cause release of gas from the canister to carbonate a liquid, and to open the air release valve to enable the gas release valve to close.

A blender includes a base unit having a receiving well, a container assembly and an actuation arrangement. The container assembly includes a container body having a blending cavity and a rim, and a connector member detachably attached on the container body to selectively seal the blending cavity, a driven unit and a blending blade. The actuation arrangement includes a plurality of actuating members outwardly extended from the rim of the container body, a plurality of actuating slots indently and spacedly formed along a side wall of the receiving well, and a plurality of actuating switches. When the connector member is slightly rotated in the receiving well, each of the actuating members is arranged to circumferentially move along the corresponding actuating slot so as to actuate the actuating switches for actuating the driving head to rotate.

A delay system for a stirring machine includes a plurality of vertical stirring augers, supported to a cross tube, with each auger having a tilt switch. A gear motor is connected to the cross tube and moves the cross tube forwardly around a bin. A delay assembly is connected to the tilt switches and the gear motor. The delay assembly shuts off the gear motor when the stirring augers are vertically displaced and starts the gear motor after a time delay once the stirring augers return to a vertical position.

A fluid storage system includes a receptacle, configured to store a fluid, delimited by a sidewall and a bottom surface wherein the bottom surface has a degree of slope directing the bottom surface to an orifice. The system further includes an inlet pipe configured to transport the fluid from an oil rig to the receptacle, an outlet pipe configured to transport the fluid from the receptacle to the oil rig, an agitator having a shaft and a propeller, a jetting line equipped with a nozzle configured to release a jetting fluid towards the sidewall and the bottom surface of the receptacle, and an interlock switch configured to automatically shut off the agitator and the jetting line.

A method for controlling pressure in a blending apparatus includes sealingly coupling a blade platform to a rim of a vessel including foodstuffs to form a blending chamber. The blade platform includes a blade assembly. The method includes injecting fluid via an opening defined within the blade platform into the blending chamber while the blade platform is sealingly coupled to the vessel. The injection of fluid causes a change in pressure in the blending chamber. The method includes rotating blades of the blade assembly to process the foodstuffs in the blending chamber. The method includes introducing air into the blending chamber to decrease a difference between the pressure within the blending chamber and a pressure external to the blending chamber. The method includes decoupling the blade platform from the rim.