IP Library › Granted Patent US 12,698,938
Granted Patent B2
US 12,698,938 · App. 18/261,933 · Granted Aug 4, 2026

Raw meal delivery device

Inventor: Matthias Mersmann (Stolberg, DE)
Assignee: KHD Humboldt Wedag GmbH
F27D3/18F27B7/3205F27B2007/3282F27D2003/0006
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,698,938
App. No.
18/261,933
Granted
Aug 4, 2026
Kind
B2
Abstract

A raw meal delivery device for delivering raw meal into a gas line or a reactor of a system for producing cement clinker, having a connection line for connecting a raw meal line to the gas line or the reactor, an oblique raw meal chute arranged inside the connection line and via which raw meal passes from the raw meal line into the gas line or to the reactor, a baffle slide arranged at the foot of the raw meal chute and protruding into the path of the raw meal flowing via the raw meal chute and deflecting the incoming raw meal. A substantially convex displacement body is arranged on the baffle slide and lies in the path of the incoming raw meal and disperses the flow of raw meal. The displacement body disperses the raw meal on entry into the calciner with the effect of quicker calcination.

Claims (13)

1 . A raw meal delivery device for delivery of raw meal into a gas line or to a reactor of a layout for production of cement clinker, comprising

a connection line for connecting a raw meal line to the gas line or the reactor,

an inclined raw meal chute, which is situated inside the connection line and by which raw meal gets from the raw meal line into the gas line or the reactor,

wherein at a foot of the raw meal chute there is arranged a baffle slide, which protrudes into a path of a flow of raw meal flowing along the raw meal chute and deflects incoming raw meal,

wherein a substantially convex displacement body is arranged on the baffle slide, which lies in the path of the incoming raw meal and disperses the flow of raw meal.

2 . The raw meal delivery device according to claim 1 , wherein the substantially convex displacement body is a tetrahedron situated on a surface, wherein one edge of the tetrahedron is oriented from the bottom of the baffle slide in a flow direction of the flow of raw meal.

3 . The raw meal delivery device according to claim 2 , wherein one side of the tetrahedron present in the flow direction is an obtuse triangle.

4 . The raw meal delivery device according to claim 2 , wherein one side of the tetrahedron present in the flow direction is open.

5 . The raw meal delivery device according to claim 2 , wherein the edge has an abrasion-resistant reinforcement.

6 . The raw meal delivery device according to claim 2 , wherein the surfaces of the tetrahedron emerging from the edge have indentations in the flow direction.

7 . The raw meal delivery device according to claim 1 , wherein a bottom surface of the substantially convex displacement body extends across an entire width of the baffle slide.

8 . The raw meal delivery device according to claim 1 , wherein the gas line comprises a riser of a heat exchanger cyclone.

9 . The raw meal delivery device according to claim 1 , wherein the reactor comprises a calciner.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2023
From: MERSMANN, MATTHIAS
To: KHD HUMBOLDT WEDAG GMBH
Reel/Frame 064299/0977 →
Priority Claims (1)
DE 102021100941.3 · Jan 19, 2021 · national
Continuity (1)
Related Publication 20240159467A1 · May 16, 2024
References Cited (29)
US 3662486A · Freedman · 1972 [cited by examiner]
US 4517020A · Steinbiss · 1985 [cited by examiner]
US 4543061A · Edwards · 1985 [cited by examiner]
US 5122346A · Wormser · 1992 [cited by examiner]
US 5472173A · Laszlo · 1995 [cited by examiner]
US 6345981B1 · Hansen et al. · 2002 [cited by applicant]
US 11634241B1 · Pawelski · 2023 [cited by examiner]
US 20020093128A1 · Koffron · 2002 [cited by examiner]
US 20030089282A1 · Steffler et al. · 2003 [cited by applicant]
US 20050069832A1 · Townsend et al. · 2005 [cited by applicant]
US 20110173139A1 · Zauderer · 2011 [cited by examiner]
US 20120243969A1 · Lin · 2012 [cited by examiner]
US 20140261574A1 · Tebbens · 2014 [cited by examiner]
US 20170209864A1 · Grisham · 2017 [cited by examiner]
US 20170218470A1 · Abel · 2017 [cited by examiner]
US 20210009455A1 · Yamamoto · 2021 [cited by examiner]
US 20210125681A1 · Kennefick · 2021 [cited by examiner]
US 20210198142A1 · Lemke · 2021 [cited by examiner]
US 20230152037A1 · Dinkova · 2023 [cited by examiner]
US 20230194173A1 · Yamamoto · 2023 [cited by examiner]
US 20240418506A1 · Kennefick · 2024 [cited by examiner]
US 20250146754A1 · Thomas · 2025 [cited by examiner]
CN 106996700A · 2017 [cited by examiner]
CN 110617704A · 2019 [cited by applicant]
DE 2312379A1 · 1974 [cited by applicant]
EP 1310467B1 · 2010 [cited by applicant]
WO 8904445A1 · 1989 [cited by applicant]
WO 0107853A1 · 2001 [cited by applicant]
International Search Report for International Patent Application No. PCT/EP2022/051056 dated May 11, 2022; priority document. [cited by applicant]