Processing plant

Patent metadata

Field	Value
Publication number	US-12534304-B2
Application number	US-202318313583-A
Country	US
Kind code	B2
Filing date	May 8, 2023
Priority date	May 19, 2022
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A processing plant includes a screen unit for screening out processing material, which can be routed to the screen unit from a crusher unit. The screen unit includes at least one screen deck and a discharge area via which the processing material exits the screen unit. A transfer belt located in a working position is disposed in the discharge area to receive processing material from the screen unit. To simplify maintenance the transfer belt is movable in a direction from the working position to a maintenance position wherein the transfer belt is at least partially moved out of the discharge area. A lifting device supports the transfer belt in the maintenance position by a hoist.

First claim

The invention claimed is:

1 . A processing plant, comprising:
a machine frame; a crusher; a screen configured to receive material being processed from the crusher, the screen including at least one screen deck and a discharge area where the material being processed exits the screen; a transfer belt movable between a working position and a maintenance position, the transfer belt in the working position being positioned to receive the material being processed from the screen, and the transfer belt in the maintenance position being moved at least in part away from the discharge area; and a lifting device supported from the machine frame and including a hoist configured to support the transfer belt in the maintenance position; wherein the lifting device includes a support arm protruding from the machine frame, and a trolley disposed on the support arm and adjustable in position along a length of the support arm.

2 . The processing plant of claim 1 , wherein:
the lifting device is mounted to the machine frame by a swivel bearing such that the lifting device can be swiveled from a rest position into a swing-out carry position.

3 . The processing plant of claim 1 , wherein:
the support arm includes a roller guide; and the trolley includes a roller bracket and a plurality of idlers rotatably mounted on the roller bracket, the idlers rolling on the roller guide of the support arm when the trolley is adjusted in position along the length of the support arm.

4 . The processing plant of claim 3 , wherein:
the support arm includes a T-beam or an I-beam, and the roller guide is a flange of the T-beam or the I-beam.

5 . The processing plant of claim 1 , wherein:
the transfer belt includes a beam, at least two deflection rollers mounted on the beam, and an endless circulating conveyor belt guided around the deflection rollers such that the endless circulating conveyor belt includes a slack side and a tight side; and the hoist is coupled to the beam by at least one coupling piece when the transfer belt is in the maintenance position.

6 . The processing plant of claim 1 , wherein:
the transfer belt is received in a receiving area of the processing plant when the transfer belt is in the working position; the processing plant further includes a support rail; the transfer belt includes at least one front support body and at least one rear support body supported on the support rail so as to support the transfer belt indirectly or directly on the machine frame when the transfer belt is in the working position; and the at least one front support body is disposed outside of the receiving area when the transfer belt is in the maintenance position.

7 . The processing plant of claim 6 , wherein:
at least one of the support bodies is a guide roller rotatably mounted on the transfer belt and in the working position of the transfer belt the guide roller is supported on a track surface of the support rail such that the track surface of the support rail guides the guide roller.

8 . The processing plant of claim 6 , further comprising:
a stop disposed directly or indirectly on the machine frame such that the at least one rear support body engages the stop to limit movement of the at least one rear support body along the support rail when the transfer belt is in the maintenance position.

9 . The processing plant of claim 1 , wherein:
the transfer belt is movable between at least two working positions.

10 . A processing plant, comprising:
a machine frame; a crusher; a screen configured to receive material being processed from the crusher, the screen including at least one screen deck and a discharge area where the material being processed exits the screen; a transfer belt movable between a working position and a maintenance position, the transfer belt in the working position being positioned to receive the material being processed from the screen, and the transfer belt in the maintenance position being moved at least in part away from the discharge area; and a lifting device supported from the machine frame and including a hoist configured to support the transfer belt in the maintenance position; wherein the lifting device is mounted to the machine frame by a swivel bearing such that the lifting device can be swiveled from a rest position into a swing-out carry position; wherein the lifting device includes two bearing plates spaced apart from each other, the two bearing plates being fastened to the machine frame of the processing plant; and wherein the swivel bearing includes a bearing piece located between the two bearing plates, and a bearing pin attached to at least one of the two bearing plates and extending through the bearing piece.

11 . A processing plant, comprising:
a machine frame; a crusher; a screen configured to receive material being processed from the crusher, the screen including at least one screen deck and a discharge area where the material being processed exits the screen; a transfer belt movable between a working position and a maintenance position, the transfer belt in the working position being positioned to receive the material being processed from the screen, and the transfer belt in the maintenance position being moved at least in part away from the discharge area; and a lifting device supported from the machine frame and including a hoist configured to support the transfer belt in the maintenance position; wherein the lifting device is disposed above the transfer belt relative to a direction of gravity, and the lifting device includes a trolley, the transfer belt being suspended from the trolley by the hoist when the transfer belt is in the maintenance position.

Assignees

• Kleemann Gmbh

Inventors

• Wagner Monika
• Kazmaier Benjamin

Classifications

• B02C23/12

  with return of oversize material to crushing or disintegrating zone · CPC title

• B02C21/026 Primary

  self-propelled · CPC title

• B65G41/001 Primary

  with the conveyor adjustably mounted on the supporting frame or base · CPC title

• B65G41/005

  mounted for both pivotal and linear movement · CPC title

• B65G41/008

  frames mounted on wheels or caterpillar (for movement on rail tracks B65G41/02) · CPC title