Patent · US Expired

Circuit grinding apparatus with high-pressure roll press and sifter

US6032887A · kind A · utility

2Cited by

5References

6Claims

0Family size

Assignee

KHD Humboldt Wedag GmbH · DE

Inventors

Siegfried Strasser · Much, DE
Franz Goddecke · Leverkusen, DE

Key dates

Filing date	Jun 23, 1998
Grant date	Mar 7, 2000
Priority date	—
Expiry date	Jun 23, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C23/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A compact circuit grinding apparatus wherein two press rolls are housed in one housing, comprising of two stationary lateral end walls, between which is arranged a material conveyor ring, which is rotatably seated and can be set into rotation, for an internal material circulation. The inflow of material takes place through one or more openings in one or both housing end walls and the outflow of material likewise takes place laterally through one or more openings in the housing end wall. A sifter is arranged underneath the nip of the two rolls in the housing. The sifter can comprise a static or dynamic sifter and a flow of air through the sifter removes the fines from the crushed granular material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.