An aeration plate is provided, including an aeration top plate portion and a side baffle portion. The aeration top plate portion is scattered with a plurality of aeration holes, such that the aeration top plate portion and the side baffle portion cooperate to form an aeration member. A fruit and vegetable cleaning machine is provided, including a machine body. The machine body is provided with a cleaning tank with a top opening, and the cleaning tank is provided with the aeration plate at an inner bottom wall, such that an area enclosed by the aeration top plate portion, the side baffle portion, and the inner bottom wall forms a first dissolving zone for gas and water, and a second dissolving zone for bubbles and water is formed between a periphery of the aeration plate and the cleaning tank.

A mixer base assembly comprises (a) a body having an upper end including a mating face for mixing vessel connection; a lower end including a cavity; a first side wall, a second side wall, a third side wall, and a fourth side wall; an inlet port arranged in the first side wall; an outlet port arranged in the third side wall; a sampling port arranged in the fourth side wall; a probe port arranged in the third side wall; and, a fluid mixing chamber including a baffle and having a bottom wall; (b) an impeller seat arranged in the cavity in the lower end of the body; and, (c) a levitating magnetic impeller arranged in the impeller seat, the impeller comprising a magnet, a base, and at least two blades, wherein the blades extend above the bottom wall of the fluid mixing chamber into the fluid mixing chamber.

An apparatus to prevent formation of a vortex has a ring-shaped gasket having a bottom surface and a top surface; and a blade assembly mounted on the top surface and comprising a center portion and plural blades of a defined height. Each of the blades extend from the center portion to the top surface, with each pair of the plural blades defining a filter based at least in part on spacing between the pair of plural blades.

Some embodiments of the present disclosure provide a material intake device and a urea preparation machine. The material intake device includes a housing, an inlet port is provided at a first end of the housing, and an outlet port is provided at a second end of the housing, and the housing is further provided with an exhaust port used for exhausting an air in the housing; a separation plate is provided within the housing to isolate the inlet port from the exhaust port, an air inlet duct and an exhaust ductexhaust duct are formed respectively between the separation plate and sidewalls of the housing, the exhaust port is communicated with the exhaust ductexhaust duct, and an overflow port connecting the air inlet duct to the exhaust ductexhaust duct is provided between a bottom of the separation plate and the sidewalls of the housing.

A multi-component fluid mixing device for mixing two or more fluids which can be used with an applicator tool, such as a spray gun. The mixing device is used with a removable cartridge that is pressure fitted into the body of the mixing device using an actuation mechanism that elevates a cartridge engagement base to create a fluid-tight seal.

There are provided a straining mechanism and a screw extruder including the straining mechanism, which can minimize material passing resistance in a breaker plate even, in a large-sized apparatus having high throughput, and which can improve the throughput by suppressing load power of the apparatus and heat generation of a material. For this purpose, a backup plate having an opening rate higher than an opening rate of a breaker plate and supporting the breaker plate is installed on a rear surface side of the breaker plate supporting a screen mesh.

An agricultural incline conveyor having belt guards extending longitudinally through a curvilinear portion from a tail inlet to a head outlet. The belt guards protect linear edges of a belt within the curvilinear portion during mixing operations. A plurality of mixing baffles positioned within the curvilinear portion induce turbulent backflow of a metered stream of seed being transported through the curvilinear portion. The longitudinal guards prevent the loss of transported seed from entering between the belt and a trough of the curvilinear portion.

An aftertreatment system comprises: a housing, a SCR system disposed in the housing. A mixer is disposed upstream of the SCR system and includes: a hub, a tubular member disposed circumferentially around the hub and defining a reductant entry port, and plurality of vanes extending from the hub to the tubular member such that openings are defined between adjacent vanes. The plurality of vanes swirl the exhaust gas in a circumferential direction. A reductant injector is disposed on the housing upstream of the SCR system along a transverse axis and configured to insert a reductant into the exhaust gas flowing through the housing through the reductant entry port. The reductant is inserted at a non-zero angle with respect to the transverse axis opposite the circumferential direction to achieve virtual interception. A mixer central axis is radially offset with respect to a housing central axis of the housing.

A mixing arrangement for mixing two solutions, a mixer settler unit and a use. The mixing arrangement includes a mixing device arranged in the mixing space for rotating therein, the mixing device comprising at least two helical bars supported around a shaft and rising upwards from the bottom section of the mixing space. The helical bars are fixed to the shaft with support spokes. The ratio of the diameter (D) of the mixing device to the average diameter (T) of the mixing space, that is D/T, is 0.47 at most.

A mixing arrangement, and pump for supplying small particles suspended in a liquid to form slurry for delivery includes a container, a mixing and delivery pump having a first shaft, a rotor connected to the first shaft and arranged at an inner bottom of an inner space of the container, a first power device connected to the first shaft, and a stator having stator blades. The stator surrounds the first shaft. The arrangement includes a pump having an inlet, which is located in a stator space between two stator blades, and an outlet, and an outlet pipe having a second inlet opening connected to the outlet and a second outlet opening located outside the inner space.