WO 2018/060955 A1

Screw conveyor to convey powdery material, in particular cement or the like

(22) 29.09.2017

(43) 05.04.2018

(57) A screw conveyor (100) to convey powdery material, in particular cement. The screw conveyor (100) comprises: – a transfer screw (70); and – a trough (80) containing the transfer screw (70); the trough (80) being provided with an inlet section (81) and an outlet section (82) of the powdery material. The screw conveyor (100) is characterized in that the screw comprises : – at least a first screw portion (TSEC) having a first law of continuous variation of the pitches of the screw (70), which can be graphically represented by means of a first function having in at least one stretch a first derivative other than zero; and – at least a second screw portion (TSEC) having a second law of continuous variation of the pitches of the screw (70), which can be graphically represented by a second function having in at least one stretch a first derivative other than zero. The first law of continuous variation of the pitches (PTC) is different from the second law of continuous variation of the pitches (PTC).

(71) WAMGroup S.p.A., Strada degli Schiocchi, 12, 41100 Modena (IT)

(84) ARIPO (BW, 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, 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)

Related articles:

Issue 3/2017 AUMUND GROUP

Çimsa Cimento and Baticim order over 100 Aumund machines for three sites

Aumund Fördertechnik is strengthening its share of the Turkish market. Çimsa Cimento has now ordered about 60 Aumund machines for the plants in Eskisehir and Ni?de. With five kiln lines in Mersin,...

more
Issue 10/2017 WO 2017/125307 A1

Feed apparatus and method for feeding cement to a cement silo

(22) 12.01.2017 (43) 27.07.2017 (57) A feed apparatus (3) for feeding cement to a cement silo (2) of a mining machine (1) comprises a receptacle (5) for receiving cement, a transfer tube (6) connected...

more
Issue 12/2018 RU 2 667 951 C1

Supply device and cement residues processing plant

(22) 10.11.2015 (45) 25.09.2018 (57) Field: machine building. Substance: invention relates to the delivery device suitable for the unloaded cement residues reception, for example, from the concrete...

more
DOUBRAVA INDUSTRIEANLAGENBAU GMBH | Powtech 2019 | 4.400

Industrial conveyor systems and turn-key plants

As one of the world's leading Christof Industries experts, Doubrava offers industrial conveyor systems and turn-key plants for dry building materials with international expertise and unique know-how...

more
Issue 3/2019 AUMUND FRANCE | AUMUND CHINA

Aumund supplies full clinker conveying equipment to cement plants in Algeria

The successful partnership between Aumund France and Aumund China has resulted in large orders for Aumund in Algeria for two new cement plants at Zahana and Bechar. The two orders together comprise 26...

more