COMPOUND AUGER DISC
A disc for mounting on a disc shaft with a shaft axis is disclosed. The disc includes a leading face that pushes material along an axial conveyance direction that is parallel to the shaft axis. The leading face is constructed of a hard and durable structural material. The disc may also include a distal face/edge constructed of the pliable elastomeric material. The disc also includes a trailing face opposite to the leading face. The trailing face is constructed of a pliable elastomeric material. The discs may be of a wraparound construction or a clamshell construction. The discs can be use in a larger disc screen.
1 . A disc for mounting on a disc shaft ( 20 ) with a shaft axis ( 22 ), the disc comprising:
a leading face ( 12 ) that pushes material along an axial conveyance direction ( 25 ) that is parallel to the shaft axis ( 22 ), the leading face ( 12 ) is constructed of a hard and durable structural material ( 10 ); and
a distal face/edge ( 13 ) constructed of a pliable elastomeric material ( 15 ).
2 . The disc of claim 1 , further comprising a trailing face ( 17 ) opposite to the leading face ( 12 ), the trailing face ( 17 ) is constructed of the pliable elastomeric material ( 15 ).
3 . The disc of claim 1 , wherein the disc is a wraparound disc ( 5 ).
4 . The disc of claim 1 , wherein the disc is a clamshell disc ( 65 ) comprised of a first part ( 50 ) and a second part ( 55 ).
5 . The disc of claim 4 , wherein the first part ( 50 ) is mounted to the disc shaft ( 20 ) in a staggered position ( 75 ) relative to the mounting of the second part ( 55 ).
6 . The disc of claim 4 , wherein the clamshell disc ( 65 ) comprises a structural insert ( 60 ).
7 . The disc of claim 1 , wherein the structural material ( 10 ) is metal or ceramic.
8 . The disc of claim 1 , wherein the elastomeric material ( 15 ) is rubber or plastic.
9 . The disc of claim 1 , wherein an outer edge of the elastomeric material ( 15 ) extends ( 19 ) beyond an outer edge of the structural material ( 10 ).
10 . The disc of claim 1 , wherein the structural material ( 10 ) is affixed to the elastomeric material ( 15 ) by an adhesive, clamp, or fastener ( 16 ).
11 . An auger for use in a disc screen, the auger comprising:
a disc shaft ( 20 ) with a shaft axis ( 22 );
a plurality of discs mounted to the disc shaft ( 20 ), each disc in the plurality comprising:
a leading face ( 12 ) that pushes material along an axial conveyance direction ( 25 ) that is parallel to the shaft axis ( 22 ), the leading face ( 12 ) is constructed of a hard and durable structural material ( 10 ); and
a distal face/edge ( 13 ) constructed of a pliable elastomeric material ( 15 ).
12 . The auger of claim 11 , wherein each disc in the plurality further comprises a trailing face ( 17 ) opposite to the leading face ( 12 ), the trailing face ( 17 ) is constructed of a pliable elastomeric material ( 15 ).
13 . The auger of claim 11 , wherein each disc in the plurality is a wraparound disc ( 5 ).
14 . The auger of claim 11 , wherein each disc in the plurality is a clamshell disc ( 65 ) comprised of a first part ( 50 ) and a second part ( 55 ).
15 . The auger of claim 14 , wherein the first part ( 50 ) is mounted to the disc shaft ( 20 ) in a staggered position ( 75 ) relative to the mounting of the second part ( 55 ).
16 . The auger of claim 14 , wherein the clamshell disc ( 65 ) comprises a structural insert ( 60 ).
17 . The auger of claim 11 , wherein the structural material ( 10 ) is metal or ceramic.
18 . The auger of claim 11 , wherein the elastomeric material ( 15 ) is rubber or plastic.
19 . The auger of claim 11 , wherein an outer edge of the elastomeric material ( 15 ) extends ( 19 ) beyond an outer edge of the structural material ( 10 ).
20 . The auger of claim 11 , wherein the structural material ( 10 ) is affixed to the elastomeric material ( 15 ) by an adhesive, clamp, or fastener ( 16 ).
21 . A disc screen comprising:
a plurality of augers, each auger in the plurality comprising:
a disc shaft ( 20 ) with a shaft axis ( 22 );
a plurality of discs mounted to the disc shaft ( 20 ), each disc in the plurality comprising:
a leading face ( 12 ) that pushes material along an axial conveyance direction ( 25 ) that is parallel to the shaft axis ( 22 ), the leading face ( 12 ) is constructed of a hard and durable structural material ( 10 ); and
a distal face/edge ( 13 ) constructed of a pliable elastomeric material ( 15 );
a support frame ( 80 ) constructed to support the plurality of augers such that each auger in the plurality is parallel to the adjacent auger in the plurality;
a motor ( 45 ) or set of motors ( 45 ) connected to the disc shafts ( 20 ) in the plurality of augers, constructed to rotate the disc shafts ( 20 ) in the plurality of augers.
22 . The disc screen of claim 21 , wherein each disc in the plurality further comprises a trailing face ( 17 ) opposite to the leading face ( 12 ), the trailing face ( 17 ) is constructed of the pliable elastomeric material ( 15 ).
23 . The disc screen of claim 21 , wherein each disc in the plurality is a wraparound disc ( 5 ).
24 . The disc screen of claim 21 , wherein each disc in the plurality is a clamshell disc ( 65 ) comprised of a first part ( 50 ) and a second part ( 55 ).
25 . The disc screen of claim 24 , wherein the first part ( 50 ) is mounted to the disc shaft ( 20 ) in a staggered position ( 75 ) relative to the mounting of the second part ( 55 ).
26 . The disc screen of claim 24 , wherein the clamshell disc ( 65 ) comprises a structural insert ( 60 ).
27 . The disc screen of claim 21 , wherein the structural material ( 10 ) is metal or ceramic.
28 . The disc screen of claim 21 , wherein the elastomeric material ( 15 ) is rubber or plastic.
29 . The disc of claim 21 , wherein an outer edge of the elastomeric material ( 15 ) extends ( 19 ) beyond an outer edge of the structural material ( 10 ).
30 . The disc screen of claim 21 , wherein the structural material ( 10 ) is affixed to the elastomeric material ( 15 ) by an adhesive, clamp, or fastener ( 16 ).
31 . A disc for mounting on a disc shaft ( 20 ) with a shaft axis ( 22 ), the disc comprising:
a leading face ( 12 ) that pushes material along an axial conveyance direction ( 25 ) that is parallel to the shaft axis ( 22 ), the leading face ( 12 ) is constructed of an outer pliable sacrificial elastomeric material ( 15 A) with an inner durable structural material ( 10 ), wherein the sacrificial elastomeric material ( 15 A) is constructed to wear away during use of the disc, thereby exposing the durable structural material ( 10 ) as the outer surface of the leading face ( 12 ); and
a distal face/edge ( 13 ) constructed of a pliable elastomeric material ( 15 ).
32 . The disc of claim 31 , further comprising a trailing face ( 17 ) opposite to the leading face ( 12 ), the trailing face ( 17 ) is constructed of the pliable elastomeric material ( 15 ).
33 . The disc of claim 31 , wherein the disc is a wraparound disc ( 5 ).
34 . The disc of claim 31 , wherein the disc is a clamshell disc ( 65 ) comprised of a first part ( 50 ) and a second part ( 55 ).
35 . The disc of claim 34 , wherein the first part ( 50 ) is mounted to the disc shaft ( 20 ) in a staggered position ( 75 ) relative to the mounting of the second part ( 55 ).
36 . The disc of claim 34 , wherein the clamshell disc ( 65 ) comprises a structural insert ( 60 ).
37 . The disc of claim 31 , wherein the structural material ( 10 ) is metal or ceramic.
38 . The disc of claim 31 , wherein the elastomeric material ( 15 ) and/or the sacrificial elastomeric material ( 15 A) is rubber or plastic.
39 . The disc of claim 31 , wherein the elastomeric material ( 15 ) and the sacrificial elastomeric material ( 15 A) comprise the same material.
40 . The disc of claim 31 , wherein an outer edge of the elastomeric material ( 15 ) extends ( 19 ) beyond an outer edge of the structural material ( 10 ).
41 . The disc of claim 31 , wherein the structural material ( 10 ) is affixed to the elastomeric material ( 15 ) by an adhesive, clamp, or fastener ( 16 ).