Screening apparatus with tiltable vibratory screen
First Claim
1. A screening apparatus for screening particulate material and comprising:
- a base frame;
an elevating conveyor arranged to convey material from a loading station at or near a lower end of the conveyor to a discharge station at an upper end of the conveyor;
a conveyor carrying frame adjustably mounted on the base frame and arranged so as to be capable of moving the conveyor generally lengthwise relative to the mounting of the carrying frame on the base frame;
a sub-frame pivotally mounted on the base frame and carrying a vibratory screen arranged to receive material falling under gravity from the upper end of the conveyor;
discharge means for discharging separate screened portions of the material after treatment by the vibratory screen;
drive means for adjusting the position of the conveyor generally lengthwise relative to the mounting of the carrying frame on the base frame;
guide means for guiding the movement of the conveyor carrying frame; and
,a direct pivotal connection between the sub-frame and the conveyor carrying frame arranged so that lengthwise adjustment of the conveyor relative to the mounting of the carrying frame on the base frame is accompanied by pivotal adjustment of the sub-frame relative to the base frame such that the vibratory screen takes up an adjusted attitude, to suit any particular operating requirement, and in which said vibratory screen receives material falling under gravity from the upper end of the conveyor.
4 Assignments
0 Petitions
Accused Products
Abstract
There is disclosed a screening apparatus for screening particulate material and which comprises a base frame, an elevating conveyor adjustably mounted on the base frame and arranged to convey material from a loading station at or near a lower end of the conveyor to a discharge station at an upper end of the conveyor, a sub-frame adjustably mounted on the base frame and carrying a vibratory screen for receiving material falling from the conveyor, a drive mechanism for adjusting the position of the conveyor along a guided path of movement, and a coupling arrangement which couples the conveyor and the sub-frame together in such a way that adjustment of the position of the conveyor relative to the base frame is accompanied by corresponding adjustment of the position of the sub-frame relative to the base frame so that the vibratory screen can take up any required attitude to suit particular requirements and in which it is still able readily to receive material falling from the upper end of the conveyor.
23 Citations
8 Claims
-
1. A screening apparatus for screening particulate material and comprising:
-
a base frame; an elevating conveyor arranged to convey material from a loading station at or near a lower end of the conveyor to a discharge station at an upper end of the conveyor; a conveyor carrying frame adjustably mounted on the base frame and arranged so as to be capable of moving the conveyor generally lengthwise relative to the mounting of the carrying frame on the base frame; a sub-frame pivotally mounted on the base frame and carrying a vibratory screen arranged to receive material falling under gravity from the upper end of the conveyor; discharge means for discharging separate screened portions of the material after treatment by the vibratory screen; drive means for adjusting the position of the conveyor generally lengthwise relative to the mounting of the carrying frame on the base frame; guide means for guiding the movement of the conveyor carrying frame; and
,a direct pivotal connection between the sub-frame and the conveyor carrying frame arranged so that lengthwise adjustment of the conveyor relative to the mounting of the carrying frame on the base frame is accompanied by pivotal adjustment of the sub-frame relative to the base frame such that the vibratory screen takes up an adjusted attitude, to suit any particular operating requirement, and in which said vibratory screen receives material falling under gravity from the upper end of the conveyor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification