Device and process for pulverizing solid materials

A grinding table for pulverizing solid materials, comprising

• a frame comprising vertical members spaced apart to support horizontal members, the horizontal members forming a substantially rectangular top portion;
• an electrical control unit mounted on the frame, the electrical control unit comprising a start button, a stop button, a speed display, a speed control, a disconnect switch, and a process timer;
• a rotary electric vibrator in communication with the electrical control unit;
• a substantially rectangular tray mounted on the frame by coiled springs attached at an upper end proximal to corners of the tray and at a lower end to corresponding positions proximal to corners to the rectangular top portion of the frame, the tray comprising a plurality of sample cells adapted to received a plurality of sample containers containing sample material and grinding beads, the tray being in mechanical communication with the rotary electric vibrator so that tray about a vertically disposed axis and a first horizontally disposed axis and the coiled springs allow additional movement about a second horizontally disposed axis perpendicular to the first horizontal axis and additional movement about the vertically disposed axis;
• and
• a lid for covering and securing the sample containers, the lid adapted to be secured to the tray by a plurality of clamps which are attached substantially at a midpoint of each side of the tray.

A grinding table for pulverizing solid materials, comprising

• a frame comprising vertical and horizontal members;
• a control unit mounted on the frame;
• a driver in communication with the control unit;
• a series of mechanical linkages comprising a counterbalanced cam mechanism in communication with the driver;
• a tray mounted on the frame via mechanical linkages, the tray having a plurality of sample cells adapted to received a plurality of sample containers containing a sample and grinding beads, the tray being in mechanical communication with the mechanical linkages which are in communication with the driver so that the driver provides a substantially elliptical movement to the tray about a vertically disposed axis and a first horizontally disposed axis, and the coiled springs allow additional movement about a second horizontally disposed axis perpendicular to the first horizontal axis and additional movement about the vertically disposed axis;
• and
• a lid for covering and securing the sample containers, the lid adapted to be secured to the tray,
• wherein the grinding table is adapted to generate substantially uniform grinding of the samples by the grinding beads in the sample containers held by the tray.

A grinding table for pulverizing solid materials, comprising

• a frame comprising vertical and horizontal members, the horizontal members forming a substantially rectangular top portion;
• a tray comprising a plurality of sample cells adapted to receive at least about 50 sample containers containing a sample and grinding beads and a plurality of clamps for attachment of a lid, the tray being mounted on the frame by mechanical linkages comprising pairs of pillow block bearing assemblies mounted on a bottom surface of the tray and in corresponding positions on a top portion of the frame, each corresponding pair of pillow block bearing assemblies being connected by at least one bearing connecting link;
• an electric motor mounted on the frame and comprising a drive shaft which communicates with an end cam follower and an associated bearing assembly comprising a table motion counterweight, the end cam bearing being linked to a connector rod which is connected at an opposite end to a pillow block bearing assembly mounted on a bottom surface of the tray;
• and
• a lid for covering and securing the sample containers, the lid adapted to be secured to the tray via the plurality of clamps,
• wherein the grinding table is adapted to generate uniform motion of the grinding beads in the sample containers held by the tray and wherein the series of mechanical linkages in communication with the driver and the mechanical linkages mounting the tray to the frame are adapted to provide motion to the tray having a substantially elliptical movement about a vertically disposed axis and a first horizontally disposed axis, and additional movement about a second horizontally disposed axis perpendicular to the first horizontal axis and additional movement about the vertically disposed axis.

A grinding table for pulverizing solid materials, comprising,

• a table having a plurality of components;
• a means for supporting the components of the table;
• a means for providing motion to moving parts of the table;
• a means for controlling the means for providing motion;
• a means for securing from about 50 sample containers to about 150 sample containers, the means for securing in communication with the means for providing motion;
• means for connecting the means for securing and the means for supporting;
• means for connecting the means for securing and the means for providing motion;
• and
• wherein the means for connecting for securing and the means for providing motion is adapted to provide motion comprising both a vertical and horizontal component to the means for securing the sample containers so that the motion is substantially elliptical about a vertically disposed axis and a first horizontally disposed axis, and the motion is additionally about a second horizontally disposed axis perpendicular to the first horizontal axis and additionally about the vertically disposed axis.