A pump that includes a rotatable shaft, a material driving apparatus mounted to the rotatable shaft, as well as a conduit in which the rotatable shaft as well as the material driving apparatus are contained, wherein the pump is capable of reliably pumping viscous material through and out of the conduit.

The present invention relates to an apparatus comprising a reactor body to which gas and water are supplied to create a gas hydrate; an upper cover which is engaged to an upper portion of the reactor body, a scraper mounted rotationally within the reactor body, and a motor for providing a driving force to the scraper. It is possible to remove gas hydrate particles attached to at least one of an inner surface of the reactor body and an inner surface of the upper cover, by a rotary driving of the scraper. According to the invention, it is possible to prevent a material hindering a heat transfer by attaching on a wall surface of the reactor, through a process of scraping out gas hydrate particles, when the scraper which is rotationally driven about a center axis of the reactor is close to the inner surface of the reactor.

Provided is a stirring device including: a stirred tank, of which an inner peripheral wall has a circular shape in cross section; and at least one flow impeller and at least one shearing impeller that are located inside the stirred tank and configured to be rotatable independently of each other, in which rotational centers of the flow impeller and the shearing impeller are coaxially provided, the flow impeller rotates around a vertical axis along the inner peripheral wall of the stirred tank to form at least a flow directed toward a lower side in the stirring object existing in the stirred tank, and the shearing impeller imparts a shearing force to the stirring object and is provided on a radially inward side of the flow impeller in the stirred tank and at a position contacting the flow of the stirring object formed by the flow impeller.

A method of producing a granular aggregate in which wet granulated substances including active material particles, conductive material particles, a binding agent for binding the active material particles and the conductive material particles, and a solvent are aggregated includes adding a binding agent solution in which the binding agent is dissolved in the solvent to the active material particles having a solvent absorbing property, mixing the binding agent solution and the active material particles such that a primary granular aggregate in which granulated primary granulated substances are aggregated is produced, and mixing the conductive material particles into the primary granular aggregate and producing a granulated granular aggregate.

A stirrer is capable of finely dispersing or emulsifying well. A stirrer in which: the stirrer is provided with a rotating rotor equipped with multiple blades and a screen that is placed around the rotor and has multiple slits; the blade and the slits are provided at least with matching regions that are at the same position in the axial direction of the rotor rotation axis; and the fluid being processed is discharged outward from inside the screen as an intermittent jet flow through the slits as a result of the rotation of the rotor. The stirrer is characterized in that when the maximum external diameter of the rotor in the matching region is (D) (m), the rotation frequency of the rotor (2) is (N) (times/s), the number (12) is (X) and the number of slits (8) is (Y), the circumferential velocity (V) (m/s) of the rotor (2) rotation is represented by equation (1) and the frequency (Z) (kHz) of the intermittent jet flow is represented by equation (2)(V)=(D)()(N)(1)(Z)=(N)(X)(Y)/1000(2) and the circumferential velocity (V) is set to be 23 m/s<(V)<37 m/s and the frequency (Z) is set to be 35<(Z).

In a rapid stirrer that stirs sludge and a flocculant in a tank with a stirring blade, the rotation speed of the stirring blade is increased at a set rate with an increase in the amount of charged sludge, the rotation speed of the stirring blade is reduced at the set rate with a decrease in the amount of charged sludge, and flocculated flocs having a fixed floc diameter are stably generated even when operating conditions change so as to fluctuate the amount of charged sludge.

A rapid stirring machine including a tank for stirring sludge and a flocculant; a drive shaft disposed in the tank; and an edged turbine blade attached to the drive shaft, the edged turbine blade including turbine blades that are disposed along a virtual circle centered around the axis of the drive shaft, on at least one of the front and back sides of the edged turbine blade in the axial direction of the drive shaft, the turbine blades being raised in the axial direction of the drive shaft.

Provided is an ultra-dispersion mixer, for stirring a mixed material for producing a high-quality slurry for an electrode of a secondary battery within a short time by disposing a low-speed blade and a high-speed blade for stirring a mixed material in a chamber so as to easily and effectively disperse elements of the slurry of a secondary battery, supplied to a mixer during a procedure of preparing the slurry of a secondary battery produced by performing mixing procedures multiple times, and disposing blade parts having a plurality of stirring characteristics so as to realize various stirring characteristics in the mixed material on the high-speed blade to increase the dispersion of the mixed material while the mixed material circulates in a high-shear disperser of the chamber and to simultaneously increase the temperature of a supplied solution at the beginning of stirring of the mixed material in the chamber.

Provided is an ultra-dispersion mixer, for stirring a mixed material for producing a high-quality slurry for an electrode of a secondary battery within a short time by disposing a low-speed blade and a high-speed blade for stirring a mixed material in a chamber so as to easily and effectively disperse elements of the slurry of a secondary battery, supplied to a mixer during a procedure of preparing the slurry of a secondary battery produced by performing mixing procedures multiple times, and disposing blade parts having a plurality of stirring characteristics so as to realize various stirring characteristics in the mixed material on the high-speed blade to increase the dispersion of the mixed material while the mixed material circulates in a high-shear disperser of the chamber and to simultaneously increase the temperature of a supplied solution at the beginning of stirring of the mixed material in the chamber.

Provided is a slurry mixer. The slurry mixer includes a container configured to receive a slurry including liquid material and powdered material, a lid configured to cover the container, a first agitator coupled to the lid, and configured to rotate to mix the slurry, a second agitator coupled to the lid at one side of the first agitator, and configured to rotate or revolve to mix the slurry, and a scraper coupled to a rotary shaft of a rotor for operating the second agitator, and configured to contact a lower surface of the lid.