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1. (WO2017036694) ENHANCED PRESSURISING OF BULK MATERIAL IN LOCK HOPPERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/036694 International Application No.: PCT/EP2016/068265
Publication Date: 09.03.2017 International Filing Date: 01.08.2016
IPC:
B65G 53/22 (2006.01) ,B65G 53/66 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
G
TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
53
Conveying materials in bulk through troughs, pipes, or tubes by floating the materials, or by flow of gas, liquid, or foam
04
Conveying materials in bulk pneumatically through pipes or tubes; Air slides
16
Gas pressure systems operating with fluidisation of the materials
18
through a porous wall
22
the systems comprising a reservoir, e.g. a bunker
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
G
TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
53
Conveying materials in bulk through troughs, pipes, or tubes by floating the materials, or by flow of gas, liquid, or foam
34
Details
66
Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
Applicants:
PAUL WURTH S.A. [LU/LU]; 32, rue d'Alsace 1122 Luxembourg, LU
Inventors:
SCHMIT, Louis; LU
MULLER, Ben; LU
Agent:
KIHN, Henri; LU
KIHN, Pierre; LU
BEISSEL, Jean; LU
OCVIRK, Philippe; LU
LAMBERT, Romain; LU
Priority Data:
92 81302.09.2015LU
Title (EN) ENHANCED PRESSURISING OF BULK MATERIAL IN LOCK HOPPERS
(FR) COMPRESSION AMÉLIORÉE DE MATÉRIAU EN VRAC DANS DES TRÉMIES À SAS
Abstract:
(EN) A process for pressurizing bulk material in an apparatus for pressurizing bulk material in a hopper; wherein the hopper is configured as a lock hopper (29) containing a bulk material, wherein the apparatus comprises a source of pressurized gas, lines (22, 26, 28) to convey the pressurized gas from the source of pressurized gas to one or more inlets (30) of the lock hopper, a valve arrangement (34) arranged in the lines, wherein the process is characterized in that said valve arrangement (34) comprises at least two valves (34A, 34B, 34C) arranged in parallel, each valve being connected to a downstream Laval tuyere, and in that said valves (34A, 34B, 34C) are controlled to open in an operating sequence to provide pressurizing gas with an adjusted gas flow rate to the lock hopper (29).
(FR) Cette invention concerne un procédé permettant de comprimer un matériau en vrac dans un appareil de compression de matériau en vrac dans une trémie. Ladite trémie est configurée sous la forme d'une trémie à sas (29) contenant un matériau en vrac. Ledit appareil comprend une source de gaz sous pression, des conduites (22, 26, 28) pour transporter le gaz sous pression provenant de la source de gaz sous pression vers un ou plusieurs orifices d'admission (30) de la trémie à sas, un agencement de vannes (34) agencées dans les conduites, ledit procédé étant caractérisé en ce que ledit agencement de vannes (34) comprend au moins deux vannes (34A, 34B, 34C) agencées en parallèle, chaque vanne étant reliée à une tuyère de Laval aval, et en ce que lesdites vannes (34A, 34B, 34C) sont commandées pour s'ouvrir lors d'une une séquence de fonctionnement afin de fournir à la trémie à sas (29) un gaz de mise sous pression présentant un débit de gaz réglé.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)