Patent · US Active

Kiln comprising a protective segment at the kiln outlet

US12018890B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignees

thyssenkrupp Polysius GmbH · DE
thyssenkrupp AG · DE

Inventors

Jochen Altfeld · Münster, DE
Ludwig Könning · Ahlen, DE
Thomas Rüther · Drensteinfurt, DE

Key dates

Filing date	Nov 25, 2019
Grant date	Jun 25, 2024
Priority date	—
Expiry date	Mar 16, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D2009/0008
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A kiln for firing cement clinker may include a tubular rotary drum that can be rotated about its central axis. The tubular rotary drum may have a discharge end at which the cement clinker leaves the kiln. A protective segment may be attached at the discharge end and may have an outward-facing wear surface and an inward-facing cooling surface. The kiln may include a cooling device for generating a cooling air flow that flows along the inward-facing cooling surface of the protective segment. The inward-facing cooling surface can include profile bodies that are pin-shaped. The profile bodies may be uniformly spaced apart, parallel to one another, and/or present over 20% to 60% of the inward-facing cooling surface.

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