An agitator includes: an agitation tank that accommodates a fluid to be processed containing particles; a flow blade that agitates the fluid to be processed accommodated in the agitation tank; and a shear blade disposed inside the flow blade at a bottom of the agitation tank to disperse the particles. The shear blade 16 includes a base portion rotating around a predetermined axis and a plurality of blades provided at an edge of the base portion. An angle formed on a downstream side in a rotation direction of the base portion between the blade and a tangent line to an outer periphery of the base portion and each of the blades is 15 degrees or more and 60 degrees or less.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment; a retainer coupled to the second end of the flexible bag, the retainer having a retention cavity formed thereon that communicates with the compartment of the flexible bag; and an elongated member having a first end rotatably coupled to the first end of the flexible bag and an opposing second end freely disposed within the retention cavity of the retainer so that the second end of the elongated member can rotate within the retention cavity relative to the retainer.

The invention relates to an autonomous domestic appliance (1) in the form of a floor cleaning robot or a lawn mower robot with a platform (3) which comprises means of locomotion (4), environmental sensors (5a, 5b, 5c) for detecting properties of the environment of the autonomous domestic appliance (1) and a control unit (6). The environmental sensors (5a, 5b, 5c) are connected to the control unit (6), and the control unit (6) is designed for autonomous movement of the domestic appliance (1) by actuating the means of locomotion (4) as a function of the detected environmental properties and for permanent travel in an area for carrying out its actual domestic activity. The autonomous domestic appliance (1) has a communication unit (7) for establishing a communication link with a remotely arranged service unit (2) and, in addition to its actual domestic activity, is designed to detect the need of help of a person as a function of the environmental properties.

Disclosed is a block press and associated process, for dynamically forming a block mold, to produce a masonry block. In some embodiments, the block mold includes a plurality of mold elements, such as a lower impact plate, an upper impact plate, and a plurality of side plates, and can further include one or more block cores. In operation, one or more of the mold elements are moved to dynamically forming a block mold, which is then filled with product formula. The product formula is then compressed, to form a masonry block. One or more of the mold elements are then released, such as to release pressure on the formed masonry block, and to allow removal of the formed masonry block from the block press, wherein the formed masonry block can be moved to a curing area, and the block press can reform the block mold for subsequent production.

The problem of providing a stirrer capable of more effectively shearing a fluid to be treated is addressed, by using the action of an intermittent jet stream. A stirrer is provided with a rotor having a blade and a screen, which are relatively rotated such that the fluid to be treated is discharged from the inside of the screen to the outside as an intermittent jet stream through a slit in the screen, the stirrer satisfying condition 1 and condition 2. (Condition 1) the relationship among the width b in the rotating direction of a tip part of the blade, the width s in the circumferential direction of the slit, and the width t in the circumferential direction of the screen member is b2s+t. (Condition 2) the relationship between the width b in the rotating direction of the tip part of the blade and the maximum inner diameter c of the screen is b0.1c.

A mixing device for mixing a liquid plastics component with a gas, having at least one liquid feed, at least one gas feed and a discharge opening for the mixture generated in the mixing device, each of which is connected to a mixing chamber in which a rotatable agitator device is arranged, wherein a shaft for driving the agitator device projects out of the mixing chamber, and the mixing chamber is sealed off, in the region of the shaft, by at least one seal, wherein, on that side of the at least one seal which is averted from the mixing chamber, there is arranged a reservoir which is connected to the at least one liquid feed and which is connected by way of a line to the mixing chamber.

A method of producing particles by bringing plural dissimilar materials A and B into contact with each other includes feeding a liquid into a reactor from a first end portion of the reactor such that the liquid flows along the inner peripheral surface of the reactor and generating a vortex flow toward a second end portion in the reactor by the feed of the liquid; disposing a flow-assisting blade capable of rotating around the central axis line in the reactor and rotating the flow-assisting blade; and injecting materials to be contacted A and B into the reactor, discharging a contacted liquid from the second end portion of the reactor, and generating the particles in the contacted liquid.

Improving health and experience of a cosmetic product user, the robotic cosmetic mix bar of the present invention is disclosed. The robotic cosmetic mix bar allows the user to select safe ingredients tailored to their own unique hair and skincare goals. In one embodiment, the robotic cosmetic mix bar contains a robotic arm surrounded by a dispenser and multiple processing stations. Based on a user input indicating a type of cosmetic product and the ingredients to include in the cosmetic product, the robotic arm obtains the desired ingredients from the dispenser and, by transporting the ingredients from one processing station to another, the robotic arm facilitates the processing of the ingredients. The processing of ingredients can include boiling, cooling, mixing, whisking, blending, etc. Within approximately two minutes, the cosmetic product built according to the user specifications is delivered to the user.

The present invention discloses a closed circulation system for improving operating efficiency of a gas drainage pump. A liquid inlet of a pneumatic diaphragm pump is connected to a liquid outlet of a drag-reducing polymer solution tank, and a liquid outlet pipe of the pneumatic diaphragm pump leads to a circulation water pool. The drag-reducing polymer solution tank is provided with a pneumatic stirrer internally, and a charging hopper at the top. A liquid outlet of a submersible pump is connected to a liquid inlet of the drag-reducing polymer solution tank and a liquid inlet of a gas drainage pump respectively through a three way pipe, and a liquid discharge pipe of the gas drainage pump is connected to the circulation water pool. The pneumatic stirrer and the pneumatic diaphragm pump operate at high speeds.

In accordance with embodiments of the herein disclosed subject matter it is described a stirring device (100) comprising a shaft rotatable about an axis of rotation; a stirring element (106) attached to the shaft, the stirring element (106) having a recess (108); the recess (108) having a surface portion (114) and an edge (116), the edge (116) defining an opening which provides access to the surface portion (114); the recess (108) being spaced from the shaft, wherein a rotation of the shaft defines a moving direction (120) of the recess (108) in which the edge (116) forms a leading edge of the recess (108); the surface portion (114) defining a depth (122) of the recess (108) with regard to the edge (116); and wherein in a direction (124) radially inwardly the depth (122) of the recess (108) is decreasing. In accordance with embodiments, the decreasing depth (122) may be realized by a suitable inclination (136) of the surface portion (114) of the recess (116) and/or by a suitable inclination (140) of the edge (116) of the recess (108).