Described herein is a protection device for an agitator shaft of an agitator, including an upper part, which serves for form-lock-fastening of the protection device to a part of an agitator head, which does not rotate during operation of the agitator; and a lower part, which serves for contactless covering of the agitator shaft; where the protection device includes two or more shell parts which can be form-lock-connected to each other by one or more manually releasable closures. Also described herein is a method of using the protection device for protecting operating personnel from getting into contact with a rotating agitator shaft of an agitator; and an agitator including an agitator shaft attached thereon, a part of an agitator head which does not rotate during operation of the agitator and the protection device attached thereon.

Truck mixer with safety device, comprising a drum rotatable around an axis of rotation by means of rotation devices, which comprise a first drive member of the electric type suitable to make said drum rotate, during normal use, and a second drive member that functions as a safety device, able to be selectively actuated in a condition of non-usability, even temporary, of said first drive member, and also suitable to make the drum rotate.

The present invention utilizes a high-speed intensive mixer in a 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 invention contributes to a simplified flowsheet, resulting in sharply reduced equipment investment, plant space, and labor and energy costs. All of 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.

The present invention utilizes a high-speed intensive mixer in a 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 invention contributes to a simplified flowsheet, resulting in sharply reduced equipment investment, plant space, and labor and energy costs. All of 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 pharmaceutical compounding device is for preparing intravenous medicaments used in chemotherapy. The device includes a compounding area with a robotic compounder, a sash window for closing the compounding area during operation of the device, and a sash window sensor system for detecting the open/closed status of the sash window. A pre and/or post-processor is arranged in the device and/or in a separate station. A controller has a security circuit for preventing opening of the sash window when the robotic compounder is performing a compounding operation and the sash window is closed. The controller has a first control circuit for the compounding area and a second control circuit for the pre- and/or post-processor area. The control circuits can be used independently to perform operations in parallel. The security circuit only acts on the first control circuit.

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 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.

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 device and method for injection of oxygen-rich gas into a body of liquid with oxygen recycling are disclosed. The device comprises a rotary hollow shaft vertically passing through a float partially immersed in the liquid, an impeller attached to the lower end of the rotary hollow shaft, a columnar structure, surrounding the rotary hollow shaft, mounted on the bottom side of the float and vertically extending into the liquid, a gas diffusion chamber formed by the columnar structure, the float and the liquid surface under the float, and a gas injection conduit passing through the float for delivering the oxygen gas into the gas diffusion chamber, wherein a vacuum is generated in the body of the liquid around the impeller when the impeller is driven to rotate, so that the oxygen-rich gas in the gas diffusion chamber is sucked into the body of the liquid and mixed therein.

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.