Global patent index - EP 0991604 A1

EP 0991604 A1 2000-04-12 - INSTALLATION FOR THERMAL TREATMENT OF SUSPENDED POWDER SUBSTANCES, AND USE FOR FLASH CALCINING OF MINERAL, IN PARTICULAR CLAYEY, SUBSTANCES

Title (en)

INSTALLATION FOR THERMAL TREATMENT OF SUSPENDED POWDER SUBSTANCES, AND USE FOR FLASH CALCINING OF MINERAL, IN PARTICULAR CLAYEY, SUBSTANCES

Title (de)

VORRICHTUNG ZUR THERMISCHEN BEHANDLUNG VON IN EINEM GAS SUSPENDIERTEN FEINKÖRNIGEN GUT UND VERWENDUNG ZUR FLASH-KALZINIERUNG VON MINERALISCHEN ROHSTOFFEN, TON INSBESONDERE

Title (fr)

INSTALLATION DE TRAITEMENT THERMIQUE DE MATIERES PULVERULENTES EN SUSPENSION, ET APPLICATION POUR LA CALCINATION FLASH DE MATIERES MINERALES NOTAMMENT ARGILEUSES

Publication

EP 0991604 A1 (FR)

Application

EP 98929500 A

Priority

  • FR 9801149 W
  • FR 9706971 A

Abstract (en)

[origin: FR2764367A1] The invention concerns an installation for quick thermal treatment of suspended powder substances, in particular for flash calcining of mineral substances. Said installation comprises modules (M1, M2, M3) advantageously arranged in mobile units including means supplying powder substances, a combustion chamber (21) wherein the substances are introduced suspended in a hot air flux and a cooling assembly (M3) where the calcined substances are recuperated to pre-heat the combustion air. The substances are pneumatically transported in the heated air downstream of the supplying means, via a pre-heating device (17) up to the combustion chamber (21).

IPC 1-7 (main, further and additional classification)

C04B 7/43; B01J 6/00; F27B 15/00

IPC 8 full level (invention and additional information)

C04B 20/04 (2006.01); E01C 21/02 (2006.01); F27B 15/00 (2006.01)

CPC (invention and additional information)

F27B 15/003 (2013.01); C04B 20/04 (2013.01); E01C 21/02 (2013.01)

Combination set (CPC)

C04B 20/04 + C04B 14/106

Citation (search report)

See references of WO 9855418A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2764367 A1 19981211; FR 2764367 B1 19990820; AU 741492 B2 20011129; AU 7923898 A 19981221; BR 9809941 A 20000801; CA 2292744 A1 19981210; EP 0991604 A1 20000412; US 6168424 B1 20010102; WO 9855418 A1 19981210

INPADOC legal status

2001-06-06 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20001215

2000-09-20 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20000804

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991123

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-04-12 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: RO PAYMENT 19991122