WO1995032400A3 - Process for controlling rotary calcining kilns, and control system therefor - Google Patents

Process for controlling rotary calcining kilns, and control system therefor Download PDF

Info

Publication number
WO1995032400A3
WO1995032400A3 PCT/CA1995/000295 CA9500295W WO9532400A3 WO 1995032400 A3 WO1995032400 A3 WO 1995032400A3 CA 9500295 W CA9500295 W CA 9500295W WO 9532400 A3 WO9532400 A3 WO 9532400A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotary calcining
calcining kiln
high temperature
temperature zone
control system
Prior art date
Application number
PCT/CA1995/000295
Other languages
French (fr)
Other versions
WO1995032400A2 (en
Inventor
Jean Perron
Marc Auger
Original Assignee
Alcan Int Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcan Int Ltd filed Critical Alcan Int Ltd
Priority to AU24420/95A priority Critical patent/AU2442095A/en
Priority to BR9507318A priority patent/BR9507318A/en
Publication of WO1995032400A2 publication Critical patent/WO1995032400A2/en
Publication of WO1995032400A3 publication Critical patent/WO1995032400A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
    • C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
    • C10B49/04—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0014—Devices for monitoring temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

A process and control system for controlling a rotary calcining kiln (10) having a feed material inlet (12) material to be calcined, a calcined product outlet (13) and a high temperature zone in which said material is calcined, the high temperature zone being movable within the rotary calcining kiln (10) according to changes in operational control variables of the rotary calcining kiln. The process comprises measuring temperatures within the rotary calcining kiln at various positions spaced from each other along the rotary calcining kiln in a region overlapping a predetermined desired position for the high temperature zone, and adjusting the control variables to move the high temperature zone to the desired position when the high temperature zone deviates from the desired position. In the process, the temperatures are measured by thermocouples (Th) having thermocouple junctions (26) protected by heat and abrasion resistant sheaths (27), preferably made of alumina/silicon carbide ceramics, positioned within the rotary calcining kiln.
PCT/CA1995/000295 1994-05-24 1995-05-19 Process for controlling rotary calcining kilns, and control system therefor WO1995032400A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU24420/95A AU2442095A (en) 1994-05-24 1995-05-19 Process for controlling rotary calcining kilns, and control system therefor
BR9507318A BR9507318A (en) 1994-05-24 1995-05-19 Process for controlling rotary kilns and control systems for them

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA 2124139 CA2124139A1 (en) 1994-05-24 1994-05-24 Process for controlling rotary calcining kilns, and control system therefor
CA2,124,139 1994-05-24

Publications (2)

Publication Number Publication Date
WO1995032400A2 WO1995032400A2 (en) 1995-11-30
WO1995032400A3 true WO1995032400A3 (en) 1996-01-18

Family

ID=4153655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1995/000295 WO1995032400A2 (en) 1994-05-24 1995-05-19 Process for controlling rotary calcining kilns, and control system therefor

Country Status (4)

Country Link
AU (1) AU2442095A (en)
BR (1) BR9507318A (en)
CA (1) CA2124139A1 (en)
WO (1) WO1995032400A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007051546A1 (en) * 2007-10-29 2009-05-07 Ci-Tec Gmbh Method for detecting and evaluating the bed of material in rotary tube reactors
CN115839617A (en) * 2021-09-17 2023-03-24 株洲瑞德尔智能装备有限公司 Sintering temperature control method and device
CN116953694B (en) * 2023-06-13 2024-01-02 北京锐达仪表有限公司 Omnibearing high-resolution scanning device in rotary kiln

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2270317A1 (en) * 1974-05-06 1975-12-05 Alcan Res & Dev
DE2524951A1 (en) * 1974-06-27 1976-01-08 Lorraine Houilleres PROCESS FOR THE PRODUCTION OF GRAINY OR POWDERED COKE
GB2157442A (en) * 1984-04-13 1985-10-23 British Nuclear Fuels Plc Electrical signal transfer system for a rotary kiln
EP0314807A1 (en) * 1987-05-12 1989-05-10 Kabushiki Kaisha Kouransha Molten metal container
US4894904A (en) * 1987-03-12 1990-01-23 Mitsubishi Denki Kabushiki Kaisha Method of forming armature core of electric rotating machine
WO1993004504A1 (en) * 1991-08-16 1993-03-04 Nicrobell Pty. Limited Thermocouple temperature sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2270317A1 (en) * 1974-05-06 1975-12-05 Alcan Res & Dev
DE2524951A1 (en) * 1974-06-27 1976-01-08 Lorraine Houilleres PROCESS FOR THE PRODUCTION OF GRAINY OR POWDERED COKE
GB2157442A (en) * 1984-04-13 1985-10-23 British Nuclear Fuels Plc Electrical signal transfer system for a rotary kiln
US4894904A (en) * 1987-03-12 1990-01-23 Mitsubishi Denki Kabushiki Kaisha Method of forming armature core of electric rotating machine
EP0314807A1 (en) * 1987-05-12 1989-05-10 Kabushiki Kaisha Kouransha Molten metal container
WO1993004504A1 (en) * 1991-08-16 1993-03-04 Nicrobell Pty. Limited Thermocouple temperature sensor

Also Published As

Publication number Publication date
WO1995032400A2 (en) 1995-11-30
AU2442095A (en) 1995-12-18
CA2124139A1 (en) 1995-11-25
BR9507318A (en) 1997-09-30

Similar Documents

Publication Publication Date Title
WO1995032400A3 (en) Process for controlling rotary calcining kilns, and control system therefor
ES8405347A1 (en) Method and apparatus for the heat treatment of a fine grained product
ES475352A1 (en) Apparatus for the heat treatment of pulverulent materials.
WO1999028690A1 (en) Ceramic materials for the manufacture of refractory rollers and other supports
ES485388A1 (en) Heat-treatment method for fine-grained material.
US3759659A (en) Method and apparatus for cement kiln control
SU696256A1 (en) Overfill heat exchanger
EP1073872B1 (en) Apparatus for conducting gas through material to be sintered
US4212114A (en) Apparatus for preheating solid particulate material
SU1629722A1 (en) Method for adjusting lime calcination in fluidized bed kiln
CA1276433C (en) Process of carrying out high-temperature reactions
ES456829A1 (en) Device for controlling the gas temperature in the drying chamber of a moving grate preheater for cement clinker production
SU815446A1 (en) Method of automatic control of heat condition of conveyer line for sintering ceram ic articles
SU827944A1 (en) Automated complex for control of rotating furnace operation
SU142181A1 (en) Apparatus for automatic control of cement clinker burning
SU444928A1 (en) Method for automatic regulation of calcification process in rotary kilns
Dalvi et al. Development of a Laboratory-Type High Temperature Gas Fired Furnace
Nadachowski et al. NEW REFRACTORY MADE BY REACTION OF ZIRCON SAND WITH LIME
SU1242699A1 (en) Temperature control system in production of ceramic articles
Sneddon et al. Borazine derived polycarbosilane polymers and the ceramics derived therefrom
SU392311A1 (en) LIBRARY? GCS. <- vt ~, "~. ,, - \?, - vВ. P. Malyshev, V. A. Yarygin, I. A. Zadorin, V. G. Shkodinmednoy industry
SU779783A1 (en) Apparatus for controlling process of firing ceramic articles in slot-type furnace
JPH0327836B2 (en)
SU960513A1 (en) Apparatus for heat treatment of chemicometallurgical production industrial products
RU2015478C1 (en) Method and furnace for burning ceramic articles

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AM AT AU BB BG BR BY CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UZ VN

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): KE MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A3

Designated state(s): AM AT AU BB BG BR BY CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UZ VN

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): KE MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase