WO 2023/117466 A1

Device and method for manufacturing
cement clinker and calcined clay

(22) 08.12.2022

(43) 29.06.2023

(57) Method and device for the combined manufacturing of cement clinker (c) and calcined clay (d), wherein the cement clinker (c) is produced in a cement manufacturing line (10) by the steps: providing a cement raw meal (a), preheating and precalcining the cement raw meal (c) in a preheater and calciner section (11), sintering the precalcined cement raw meal in a rotary kiln (15) to provide the cement clinker (c) and cooling the cement clinker (c) with a counter current air stream in a clinker cooler (17) providing hot air, and wherein the calcined clay (d) is produced in a clay manufacturing line (20) by the steps: providing a clay raw material (b), preheating the clay raw material (b) in a heat exchange section (21), and calcining the preheated clay raw material suspended in gas in a flash calciner (23) to provide the calcined clay (d), wherein the hot air from the cooler (17) is divided into at least two streams, a first combustion air stream used in sintering the cement raw meal and a second combustion air stream used in calcining the clay raw.

(71) HConnect 2 GmbH, 69120 Heidelberg (DE)

(84)) ARIPO (BW, CV, GH, GM, KE, LR, LS, MW, MZ, NA. RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI. FR, GB, GR, HR, HU, IE. IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

x

Related articles:

Issue 2021-1 EP 3 738 939 A1

Method for calcining raw meal for cement clinker manufacturing

(22) 17.05.2019 (43) 18.11.2020 (57) Method for calcining limestone or raw meal containing limestone for manufacturing cement clinker, wherein microwave energy is used for calcination, device for...

more
Issue 2022-6 WO 2022/123435 A1

Method of producing clinker from cement raw meal

(22) 07.12.2021 (43) 16.06.2022 (57) Method of producing clinker form cement raw meal A method of producing clinker from cement raw meal, comprising the steps of: – preheating cement raw meal in a...

more
Issue 2023-1 WO2022248384 (A1)

Method and device for producing cement clinker

(22) 23.05.2022 (43) 01.12.2022 (57) The present invention relates to a method for producing cement clinker (50), said method comprising the steps of: preheating raw material (20) in a preheater (12),...

more
Issue 2021-7 EP 3 865 801 A1

Apparatus and method for manufacturing cement clinker

(22) 18.02.2020 (43) 18.08.2021 (57) A calciner 18 for receiving raw meal 102 from a preheater 20 of a cement clinker line 1, for calcining the raw meal 102 and for providing the calcined and/or...

more
Issue 2022-1 WO 2021/204549 A1

Method and device for the production of cement clinker

(22) 25.03.2021 (43) 14.10.2021 (57) The invention relates to a method for producing cement clinker, said method comprising the steps of: – preheating raw meal in a preheater (12), – calcining the...

more