The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 03, 2021

Filed:

Oct. 01, 2018
Applicant:

Metso Outotec Usa Inc., Waukesha, WI (US);

Inventor:

Brian Knorr, Henrico, VA (US);

Assignee:

Metso Outotec USA Inc., Waukesha, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02C 4/42 (2006.01); B02C 4/32 (2006.01); B02C 23/12 (2006.01); B02C 4/28 (2006.01); B02C 4/02 (2006.01);
U.S. Cl.
CPC ...
B02C 4/32 (2013.01); B02C 4/02 (2013.01); B02C 4/286 (2013.01); B02C 23/12 (2013.01);
Abstract

System and method for controlling the startup sequence of a roller crusher is disclosed. The roller crusher includes two generally parallel rollers that are separated by a gap where the rollers rotate in an opposite direction. During startup, the gap between the rollers is greater than the gap during normal production and a feeding arrangement is run at a speed that is lower than a normal production feed rate. The rollers are rotated at a predetermined speed that is less than the speed during normal production. Other parameters of the system are set such that material is fed over the entire length of the rollers and the no crushing force is exerted during the startup. The method and system of the present disclosure reduces the amount of stress on the rolls, frame and hydraulic system of the roller crusher.


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