EP0248708B1 - Procédé de régulation d'une installation de fabrication du ciment en voie sèche avec précalcination - Google Patents

Procédé de régulation d'une installation de fabrication du ciment en voie sèche avec précalcination Download PDF

Info

Publication number
EP0248708B1
EP0248708B1 EP87401168A EP87401168A EP0248708B1 EP 0248708 B1 EP0248708 B1 EP 0248708B1 EP 87401168 A EP87401168 A EP 87401168A EP 87401168 A EP87401168 A EP 87401168A EP 0248708 B1 EP0248708 B1 EP 0248708B1
Authority
EP
European Patent Office
Prior art keywords
heat
kiln
supplied
clinker
calculated
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP87401168A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0248708A1 (fr
Inventor
Philippe Benoit
Alain Chielens
André Pinoncely
Florence Osselin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock SA
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 Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to AT87401168T priority Critical patent/ATE49653T1/de
Publication of EP0248708A1 publication Critical patent/EP0248708A1/fr
Application granted granted Critical
Publication of EP0248708B1 publication Critical patent/EP0248708B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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 specially adapted for rotary-drum furnaces
    • F27B7/42—Arrangement of controlling, monitoring, alarm or like devices

Definitions

  • the subject of the present invention is a method for regulating a cement manufacturing installation in the dry process comprising a precalcination chamber in which the raw material is at least partially decarbonated, a rotary tubular oven equipped with a burner at its outlet end. clinker, a heat exchanger where the raw material is preheated by means of exhaust gases from the rotary kiln and the precalcination chamber and a clinker cooler.
  • the purpose of the present invention is to allow the taking into account of the modifications of the essential operating parameters of the installation as soon as they appear, for the determination of the set value of the fuel flow rate.
  • the quantity of heat supplied to the precalcination chamber may be calculated from a predetermined nominal theoretical heat quantity and from correction coefficients taking into account the differences between the measured values and the nominal values of the calculation parameters.
  • the set value calculated for the flow of fuel to be supplied to the furnace can be corrected as a function of the difference between the measured value and the set value of a quantity representative of the quality of the clinker, in particular its free lime content. .
  • this correction can be made as a function of the apparent temperature of the clinker at the furnace outlet in accordance with the process which is the subject of French patent 85.03660.
  • the progressive modification of the set value of the fuel flow regulator supplied to the furnace can be carried out by sending to the regulator a signal proportional to the calculated set value and distributed to the regulator by a function which takes into account the thermal history. material in the oven, for example using a second order filter.
  • This installation comprises a cyclone exchanger 1 to 8, a precalcination chamber 10 with which is associated a cyclone 9, a rotary tubular furnace 12 and a clinker cooler 14.
  • the exchanger comprises a first line of cyclones 2, 3, 4 , 5 which are crossed by the exhaust gases from the furnace 12 and a second line of cyclones 1, 6, 7, 8 which are crossed by the exhaust gases from the chamber 10.
  • the raw raw material in the form of flour, is introduced at A and B into the upper stages of the two cyclone lines, heated by the exhaust gases from the oven and from the calcination chamber, then admitted into the latter where it is partially decarbonated.
  • the heat necessary for this reaction is supplied by the combustion of a mixture of a fuel injected into the chamber by means of a nozzle 16 and of air taken from the cooler 14 and brought to the chamber by a conduit 18.
  • the partially decarbonated material is carried out of the chamber 10 by the exhaust gases and transported in the cyclone 9 where it is separated from the gases to be introduced into the furnace 12 by means of the pipe 20.
  • the material which moves slowly, from one end to the other, in the opposite direction to the hot gases produced by a burner 22 is completely calcined and clinkerized.
  • the clinker produced is cooled in the cooler 14 by means of fresh air which is then used as combustion air in the oven and in the precalcination chamber.
  • a regulator 24 maintains the temperature of the gases downstream of the precalcination chamber equal to a set value by acting on the flow of fuel supplied to the chamber.
  • the purpose of this regulation is to obtain good stability of the rate of decarbonation of the material at the outlet of the precalcination chamber.
  • the temperature of the gases downstream of the chamber 10 is indeed a good image of the decarbonation rate.
  • the flow rate of the fuel supplying the burner 22 is regulated by a regulator 26, the set value of which is given by a computer 28.
  • This set value is calculated periodically, at very short time intervals (for example 10 seconds), by the computer 28, from the values measured or entered by the operator of a large number of parameters: clinker flow rate, characteristics of the raw and precalcined raw material, characteristics of the fuel, oxygen content of the exhaust gases, etc ...
  • K1, K2, ... Kn are parameters, such as the flow rate of raw material or of clinker, the rate of decarbonation of the material at the outlet of the precalcination chamber, the free lime content of the clinker, the fuel ash rate, the proportion of each fuel if several fuels are used, the oxygen content in the exhaust gases from the oven and the precalcination chamber, etc.
  • QTO is the total theoretical heat quantity corresponding to the nominal values imposed by the parameters K1, K2, ... Kn. It is predetermined either from tests or by means of a mathematical model and stored in a computer file.
  • f1 (K1), f2 (K2) ... fn (Kn) are corrective terms which involve the differences between the values of the parameters K1, K2, ... Kn coming from measurements carried out at each step of calculation and their values nominal.
  • the relationships f1, f2, ... fn are preset and the nominal values of the parameters K1, K2, ... Kn are stored in a computer file.
  • the amount of heat required for the oven is then calculated by making the difference between QT and QP, and the value obtained is possibly corrected according to the value of the output signal of a PID regulator incorporated in the computer and to which a signal is applied.
  • this parameter can be, in particular, the apparent temperature of the clinker at the furnace outlet measured by means of a radiation pyrometer 30 in accordance with the process which is the subject of French patent 85.03660.
  • the computer determines a setpoint value FF for the flow of fuel supplying the burner 22.
  • a signal proportional to the calculated setpoint value FF is distributed to the regulator 26 as a function of time, for example through a filter or any other time distribution means to allow the possible modification of the setpoint value of the regulator to be gradual and s spread over a period corresponding approximately to the residence time of the materials in the oven.
  • Figure 2 shows the variation of the setpoint of regulator 26. Initially this setpoint was FFO. At time t1, the calculated setpoint is FF1. From t1 the regulator setpoint will gradually increase until reaching FF1 after a period of time of the same order of magnitude as the residence time of the materials in the oven. It was assumed that the calculated setpoint remained equal to FF1 throughout the period considered. Otherwise, the curve would be modified to take into account the new calculated value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Furnace Details (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Artificial Fish Reefs (AREA)
  • Disintegrating Or Milling (AREA)
  • Materials For Medical Uses (AREA)
  • Inorganic Insulating Materials (AREA)
  • Drying Of Solid Materials (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP87401168A 1986-06-04 1987-05-25 Procédé de régulation d'une installation de fabrication du ciment en voie sèche avec précalcination Expired - Lifetime EP0248708B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401168T ATE49653T1 (de) 1986-06-04 1987-05-25 Regelverfahren fuer eine anlage zum brennen von zement nach dem trockenverfahren mit vorkalzination.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8608032A FR2599826B1 (fr) 1986-06-04 1986-06-04 Procede de regulation d'une installation de fabrication du ciment en voie seche avec precalcination
FR8608032 1986-06-04

Publications (2)

Publication Number Publication Date
EP0248708A1 EP0248708A1 (fr) 1987-12-09
EP0248708B1 true EP0248708B1 (fr) 1990-01-17

Family

ID=9335979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401168A Expired - Lifetime EP0248708B1 (fr) 1986-06-04 1987-05-25 Procédé de régulation d'une installation de fabrication du ciment en voie sèche avec précalcination

Country Status (11)

Country Link
US (1) US4817008A (pt)
EP (1) EP0248708B1 (pt)
JP (1) JPS6340748A (pt)
AT (1) ATE49653T1 (pt)
BR (1) BR8702812A (pt)
CA (1) CA1334296C (pt)
DE (1) DE3761462D1 (pt)
DK (1) DK165651C (pt)
ES (1) ES2012400B3 (pt)
FR (1) FR2599826B1 (pt)
PT (1) PT85010B (pt)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7223822B2 (en) 2002-10-15 2007-05-29 Exxonmobil Chemical Patents Inc. Multiple catalyst and reactor system for olefin polymerization and polymers produced therefrom
US7294681B2 (en) 2002-10-15 2007-11-13 Exxonmobil Chemical Patents Inc. Mutliple catalyst system for olefin polymerization and polymers produced therefrom
US7541402B2 (en) 2002-10-15 2009-06-02 Exxonmobil Chemical Patents Inc. Blend functionalized polyolefin adhesive
US7550528B2 (en) 2002-10-15 2009-06-23 Exxonmobil Chemical Patents Inc. Functionalized olefin polymers
US7700707B2 (en) 2002-10-15 2010-04-20 Exxonmobil Chemical Patents Inc. Polyolefin adhesive compositions and articles made therefrom

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2139482C1 (ru) * 1998-03-12 1999-10-10 Открытое акционерное общество "Комбинат Магнезит" Способ управления процессом обжига сырьевого материала во вращающейся печи
RU2249775C2 (ru) * 2001-10-09 2005-04-10 Общество с ограниченной ответственностью "Научно-экологическое предприятие "ЭКОСИ" Способ управления процессом обжига материала во вращающейся печи
RU2232959C2 (ru) * 2002-02-01 2004-07-20 Общество с ограниченной ответственностью Научно-экологическое предприятие "ЭКОСИ" Система управления процессом обжига материала во вращающейся печи
RU2308651C1 (ru) * 2006-04-11 2007-10-20 Общество с ограниченной ответственностью "Русская инжиниринговая компания" Способ автоматического управления процессом прокаливания сырьевого материала во вращающейся печи

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052333A (pt) * 1963-05-02
FR1463821A (fr) * 1965-04-21 1966-07-22 Chichibu Cement Kk Procédé de contrôle de fours
US3566091A (en) * 1966-09-02 1971-02-23 Leeds & Northrup Co Method and apparatus for controlling a process variable by manipulation of a selected one of two variables
US3595544A (en) * 1969-07-15 1971-07-27 United States Steel Corp Control system for cement kiln
US3888621A (en) * 1974-04-12 1975-06-10 Alcan Res & Dev Monitoring and controlling kiln operation in calcination of coke
US4022569A (en) * 1975-12-05 1977-05-10 Alcan Research And Development Limited Calcination of coke
US4430719A (en) * 1981-11-03 1984-02-07 Kaiser Aluminum & Chemical Corporation Calcination control system
FR2557682B1 (fr) * 1984-01-03 1986-04-18 Cem Comp Electro Mec Procede de conduite automatisee d'une installation de fabrication de clinker de ciment en voie seche avec precalcination
JPS6163550A (ja) * 1984-09-06 1986-04-01 三菱重工業株式会社 セメント焼成設備の安定化制御方法
FR2578834B1 (fr) * 1985-03-13 1992-01-03 Fives Cail Babcock Procede et dispositif de conduite d'une installation de fabrication de clinker de ciment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7223822B2 (en) 2002-10-15 2007-05-29 Exxonmobil Chemical Patents Inc. Multiple catalyst and reactor system for olefin polymerization and polymers produced therefrom
US7294681B2 (en) 2002-10-15 2007-11-13 Exxonmobil Chemical Patents Inc. Mutliple catalyst system for olefin polymerization and polymers produced therefrom
US7524910B2 (en) 2002-10-15 2009-04-28 Exxonmobil Chemical Patents Inc. Polyolefin adhesive compositions and articles made therefrom
US7541402B2 (en) 2002-10-15 2009-06-02 Exxonmobil Chemical Patents Inc. Blend functionalized polyolefin adhesive
US7550528B2 (en) 2002-10-15 2009-06-23 Exxonmobil Chemical Patents Inc. Functionalized olefin polymers
US7700707B2 (en) 2002-10-15 2010-04-20 Exxonmobil Chemical Patents Inc. Polyolefin adhesive compositions and articles made therefrom
US8071687B2 (en) 2002-10-15 2011-12-06 Exxonmobil Chemical Patents Inc. Multiple catalyst system for olefin polymerization and polymers produced therefrom
US8088867B2 (en) 2002-10-15 2012-01-03 Exxonmobil Chemical Patents Inc. Multiple catalyst system for olefin polymerization and polymers produced therefrom
US8957159B2 (en) 2002-10-15 2015-02-17 Exxonmobil Chemical Patents Inc. Multiple catalyst system for olefin polymerization and polymers produced therefrom

Also Published As

Publication number Publication date
DK291887D0 (da) 1987-06-04
DK165651B (da) 1992-12-28
DK291887A (da) 1987-12-05
ATE49653T1 (de) 1990-02-15
US4817008A (en) 1989-03-28
DE3761462D1 (de) 1990-02-22
ES2012400B3 (es) 1990-03-16
JPS6340748A (ja) 1988-02-22
DK165651C (da) 1993-06-01
PT85010A (fr) 1987-07-01
FR2599826A1 (fr) 1987-12-11
PT85010B (pt) 1990-07-31
EP0248708A1 (fr) 1987-12-09
FR2599826B1 (fr) 1989-08-25
BR8702812A (pt) 1988-03-01
CA1334296C (fr) 1995-02-07

Similar Documents

Publication Publication Date Title
EP0248708B1 (fr) Procédé de régulation d'une installation de fabrication du ciment en voie sèche avec précalcination
US3469828A (en) Method and apparatus for cement kiln control
CN103499212B (zh) 一种二元点火炉炉膛温度调节方法及装置
EP0148090B1 (fr) Procédé de fabrication de clinker de ciment en voie sèche avec précalcination
CN118140094A (zh) 用于烧制基本上扁平的基础陶瓷制品的方法和窑炉
RU96122789A (ru) Способ контроля температуры в обжиговой печи и устройство для производства цементного клинкера
FR2527588A1 (fr) Procede et dispositif pour la regulation de l'operation de cuisson dans une installation de cuisson du ciment
CA2671972C (en) Batch waste gasification process
CN108870997A (zh) 一种定量供热方法
FR2611877A2 (fr) Procede de regulation d'une installation de fabrication du ciment en voie seche avec precalcination
SU924492A1 (ru) Способ автоматического управлени процессом обжига клинкера во вращающейс печи
SU361989A1 (ru) УСТРОЙСТВО дл УПРАВЛЕНИЯ ТЕПЛОВЫМ РЕЖИМОМ ОБЖИГА СЫРЬЕВОЙ СМЕСИ ВО ВРАЩАЮЩЕЙСЯ ПЕЧИ
SU827944A1 (ru) Автоматизированный комплекс дл управ-лЕНи РАбОТОй ВРАщАющЕйС пЕчи
EA009345B1 (ru) Способ и устройство регулирования рабочих параметров в реакторе
SU665197A1 (ru) Автоматизированный комплекс дл обжига сырьевой смеси во вращающейс печи
SU836979A1 (ru) Способ регулироваи процесса обжига во вращающейс цементной печи с многоступенчатым теплообменником и декарбонизатором
SU754189A1 (ru) Устройство дл автоматического управлени процессом обжига сырьевой смеси во вращающей печи
SU673831A1 (ru) Способ управлени процессом обжига
SU972207A1 (ru) Способ автоматического управлени тепловым режимом вращающейс печи
SU926479A1 (ru) Способ автоматического управлени процессом прокалки углеродистых материалов во вращающихс трубчатых печах
SU1122882A1 (ru) Способ автоматического регулировани работы запечного теплообменника вращающейс печи
SU889638A1 (ru) Способ управлени подачей топлива в декарбонизатор вращающейс печи цементного производства
RU2061940C1 (ru) Способ спекания глиноземсодержащей шихты
SU1002789A1 (ru) Устройство дл автоматического управлени процессом обжига сырьевой смеси
SU303298A1 (ru) Способ автоматического регулирования процесса

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19871230

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FIVES-CAIL BABCOCK, SOCIETE ANONYME

17Q First examination report despatched

Effective date: 19890510

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19900117

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19900117

REF Corresponds to:

Ref document number: 49653

Country of ref document: AT

Date of ref document: 19900215

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3761462

Country of ref document: DE

Date of ref document: 19900222

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 87401168.7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970430

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19970509

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970512

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970516

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19970521

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19970529

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19970531

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970730

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19970908

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980525

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980525

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980526

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19980526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

BERE Be: lapsed

Owner name: S.A. FIVES-CAIL BABCOCK

Effective date: 19980531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980525

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 87401168.7

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19981201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990302

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20000201