Modular gyratory sifter

Patent metadata

Field	Value
Publication number	US-10220414-B2
Application number	US-201514892726-A
Country	US
Kind code	B2
Filing date	Jun 23, 2015
Priority date	Jun 25, 2014
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

Apparatus having a drivebox including a motor, a drive connected to the motor, a suitable number of adjustment brackets, and a set of adjustment gussets. A basket is connected to the drivebox through the adjustment brackets and adjustment gussets, and drivebox imparts a sifting motion onto the basket. The basket has a housing, an infeed end, an discharge end, at least one screening deck contained therein, and positioned at a screening deck angle. The apparatus is of a modular design which enables changing the screening deck angle while installed in a facility and without substantial disassembly.

First claim

I claim:

1. An apparatus comprising:
a frame having a longitudinal axis extending along a level plane and comprising a perimeter defining an interior space of the frame;
a drivebox movably connected to the frame, the drivebox having a length, extending along the longitudinal axis of the frame, defined between a first end of the drivebox and an opposite second end of the drivebox and comprising a motor, a drive connected to the motor, a plurality of adjustment brackets, and a plurality of adjustment gussets, the plurality of adjustment brackets comprising a pair of first adjustment brackets provided at the first end of the drivebox and a pair of second adjustment brackets provided at the opposite second end of the drive box; and;
a basket movably connected to the drivebox such that the pair of first adjustment brackets and the pair of second adjustment brackets suspend drivebox and the basket from the frame, the basket comprising a housing, an infeed end, a discharge end, and at least one screening deck,
wherein the basket is connected to the plurality of adjustment brackets and the plurality of adjustment gussets and has a screening deck angle of from about 2 degrees to about 15 degrees downward with respect to the level plane such that a portion of the housing of the basket and a portion of the at least one screening deck of the basket are provided inside the interior space of the frame.

2. The apparatus of claim 1 wherein the screening deck angle is about 3 degrees relative the level plane.

3. The apparatus of claim 1 wherein the screening deck angle is about 5 degrees relative the level plane.

4. The apparatus of claim 1 wherein the screening deck angle is about 7 degrees relative the level plane.

5. The apparatus according to claim 1 wherein the basket is generally rectangular-shaped.

6. The apparatus according to claim 1 wherein drivebox imparts gyratory motion into the basket.

7. The apparatus according to claim 1 wherein drivebox is positioned below the basket.

8. The apparatus according to claim 1 wherein the basket comprises from 3 to 6 screening decks.

9. An apparatus comprising:
a frame;
a drivebox movably connected to the frame, the drivebox comprising a motor, a drive connected to the motor, a plurality of adjustment brackets, and a plurality of adjustment gussets; and,
a basket movably connected to the drivebox, the basket comprising a housing, an infeed end, a discharge end, and at least one screening deck;
wherein the basket is connected to the plurality of adjustment brackets and the plurality of adjustment gussets, wherein the plurality of adjustment brackets comprises a pair of pivot brackets and a pair of vertical adjustment brackets, wherein each of the pivot brackets is connected to opposing sides of the basket and the drivebox, and wherein each of the vertical adjustment brackets is connected to opposing sides of the basket and the drivebox.

10. The apparatus according to claim 9 wherein the pair of vertical adjustment brackets and the pair of pivot brackets are configured to connect the drivebox with the basket at any one of a plurality of screening deck angles relative a level plane.

11. The apparatus according to claim 10 wherein the basket is positioned at a screening deck angle of about 3 degrees, about 4 degrees, about 5 degrees, about 6 degrees, or about 7 degrees relative the level plane.

12. An apparatus comprising:
a frame having a longitudinal axis extending along a level plane and comprising a perimeter defining an interior space of the frame;
a drivebox movably connected to the frame, the drivebox comprising a motor, a drive connected to the motor, a plurality of adjustment brackets, and a plurality of adjustment gussets; and
a basket movably connected to the drivebox, the basket comprising a housing, an infeed end, a discharge end, and at least one screening deck,
wherein the basket is connected to the plurality of adjustment brackets and the plurality of adjustment gussets and has a screening deck angle of from about 2 degrees to about 15 degrees downward with respect to the level plane such that a portion of the housing of the basket and a portion of the at least one screening deck of the basket are provided inside the interior space of the frame, and
further wherein portions of the plurality of adjustment gussets are provided outside the interior space of the frame.

Assignees

• Mi Llc

Inventors

• Heitfeld Mark

Classifications

• B07B1/42 Primary

  Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens · CPC title

• B07B1/06 Primary

  Cone or disc shaped screens · CPC title

• B07B1/4663

  Multi-layer screening surfaces · CPC title

• B07B1/38

  oscillating in a circular arc in their own plane; Plansifters · CPC title

• B07B1/28 Primary

  Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens · CPC title