摘要:
A flow disrupter in a tube chamber of a tube assembly for homogenizing sample materials includes a flow-disrupting body that extends generally transversely into the tube chamber and divides the tube chamber into two sub-chambers. The flow-disrupting body includes at least one narrowed flow passageway through which the sample flows back and forth in both axially reciprocating directions as the tube assembly is vigorously shaken at high speeds faster and more reliably than what can be accomplished by hand shaking. And the flow-disrupting body includes at least two flow-interrupting surfaces facing generally in opposite axial directions and against which the sample impacts in each respective axially reciprocating direction as the tube assembly is vigorously shaken. In this way, the vigorous high-speed shaking of the tube assembly including the flow disrupter results in significant particle-size reduction of the sample by mechanical shear, fluid shear, cavitation, and/or pressure differentials.
摘要:
A mechano-chemical reactor comprising, driving means extended along one or more parallel axis, a mass made oscillating by the driving means along the direction of a vertical axis and an elastic system for a partial compensation of the inertial forces generated by the oscillating mass. The oscillating mass includes at least one restricted environment loaded with solid and/or liquid substances are loaded in order to be treated by the kinetic energy of milling bodies. The elastic system comprises flexible elements made of a titanium alloy which are either one-dimensional, i.e. a plurality of rectilinear parallel rods, or bi-dimensional, i.e. at least a polygonal plate having two sides parallel to the axis of the driving means. In rest conditions the flexible elements are extended substantially perpendicular to the direction of the oscillations of the mass.
摘要:
An apparatus for mixing and/or crushing substances into fine particles is disclosed, wherein the apparatus includes a fluid flow path that is formed by a first structural member having a plurality of cells thereon, each having its front side open, and a second structural member having a plurality of cells thereon, each having its front side open. The first structural member and the second structural member are arranged adjacently each other such that the open front sides of the cells on one structural member face opposite the open front sides of corresponding cells on the other structural member, with the cells on the one structural member being placed in alternate positions with regard to the corresponding cells on the other structural member, and with each of the cells on the one structural member communicating with at least one or more of the cells on the other structural member. When a right-angled isosceles triangle is given and when segments connecting any arbitrary point on two sides and any arbitrary point on a perpendicular from a vertex to a base is given, each of the cells has a shape defining an area that is equal to one half an area of the right-angled isosceles triangle that is obtained by turning the above segments clockwise and counter-clockwise about the arbitrary point on a corresponding side as an origin to intersect these segments with the base, and then by connecting these segments. A method for mixing and/or crushing substances into fine particles is also disclosed, wherein the method comprises steps performed by using the above-described apparatus wherein, a fluid, in which substances to be crushed are mixed, is introduced into an inlet of a cylindrical casing under applied pressure, and then subjected to a mixing and/or crushing process while flowing the fluid through the fluid flow path.
摘要:
A partition diaphragm which divides a grinding chamber of a ball mill into several chambers is formed into a compound structure comprising a primary screen plate and a secondary screen plate, with the slit clearance of the secondary screen plate being smaller than that of the prior art while avoiding the occurrence of blinding. The secondary screen plate of the partition diaphragm is comprised of a wire sieve provided with fine slits having a trapezoidal shape in section. The wire seive is loosely disposed between adjacent members so as to be freely movable to a certain extent. Since there is no sticking of material by movement of the wire sieve in spite of the slit clearance in the wire sieve, fine particles in the partition diaphragm can move smoothly and the two grinding chambers are well-balanced, resulting in an improved grinding efficiency.
摘要:
The invention relates to a method of operating a stirring ball mill which has a preferably cylindrical, rotating barrel provided with an inlet at one end and an outlet at the other end, in which a stirring shaft provided with stirring means rotates. This method includes operating the mill at supercritical rotatory speed with a degree of fill of at least 25%, while the balls are retained in the mill. In this manner a great throughput is achieved and a narrow grain size range, without requiring a great amount of space.
摘要:
Flow rate of material passing through a partition diaphragm of a ball mill is regulated. One end of a disc controller is mounted on an outer shell of the ball mill, and a control disc is mounted on the other end through a diaphragm chamber formed inside the partition diaphragm. The disc controller performs an opening and closing operation of a discharge opening by moving to and from a center core A disk adjust bar 41, a universal joint 45 and a disc holder bar 50 are connected in such a manner as to be separately bendable with respect to each other. The opening and closing operation performed by the control disc is not affected by deformation of the outer shell of the ball mill or any positional change during operation.
摘要:
A continuous micronizing mill for granular material consisting of a rotary drum with a high length/diameter ratio, divided by separator baffles into several grinding chambers in which grinding loads having a progressively decreasing body size are placed and in which the ratios of granular material to grinding load are different.
摘要:
The invention relates to a tube mill partition as a transfer or discharge partition. With a view to reducing wear and facilitating maintenance, separate wearing beams are used and the latter or the slotted plates can be easily replaced without any further assembly opening.
摘要:
A division head for a tubular grinding mill for controlling the level of material being ground in the upstream compartment of the mill. The division head is formed by a plurality of hollow pie shaped segments covered on the upstream side by grates which permit material to flow into the division head and liners and on the downstream side. A partition divides the pie shaped segments into radially inward sections and a radially outward section. Material within the radially inward sections flows out of the division head into a downstream compartment of the mill through a central discharge cone. Some of the radially outward sections are flow connected directly to the radially inward sections through an opening in the partition dividing the pie shaped segments. Dampers are provided for controlling flow of material through the opening connecting radially outward sections with radially inward sections. By controlling flow out of the radially outward sections, flow into those sections is controlled and the level of material in the upstream mill compartment can be controlled.
摘要:
A multi-chambered scrubber is employed to thoroughly wash gravels or materials bearing heavy precious metals. The apparatus includes a multi-chambered scrubber drum which is supported at an angle by a frame and adapted to be driven by a variable speed drive system. The scrubber drum includes at least two sections each of which has a polygonal shaped, water-tight interior chamber. Each of the sections is separated by a retainer ring having an opening therein smaller in area than the area of the next preceeding scrubber chamber. The scrubber sections are interchangeable and may be connected one to the other in any of a variety of combinations as may be dictated by the material being scrubbed. The polygonal shape of the scrubber chambers contributes to a greatly improved washing and disintegrating action on the material being treated. The scrubber apparatus also includes a plurality of removable wear plates which can be replaced as they become worn down and damaged.