DE9108104U1 - Combustion plant for the waste liquor of a pulp digester with a control device for the combustion air - Google Patents
Combustion plant for the waste liquor of a pulp digester with a control device for the combustion airInfo
- Publication number
- DE9108104U1 DE9108104U1 DE9108104U DE9108104U DE9108104U1 DE 9108104 U1 DE9108104 U1 DE 9108104U1 DE 9108104 U DE9108104 U DE 9108104U DE 9108104 U DE9108104 U DE 9108104U DE 9108104 U1 DE9108104 U1 DE 9108104U1
- Authority
- DE
- Germany
- Prior art keywords
- ash
- combustion
- waste liquor
- setpoint
- temperature
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims 134
- 239000002699 waste material Substances 0.000 title claims 69
- 239000002956 ash Substances 0.000 claims 95
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 36
- 239000003546 flue gas Substances 0.000 claims 30
- 238000000034 method Methods 0.000 claims 30
- 230000029087 digestion Effects 0.000 claims 24
- 239000000126 substance Substances 0.000 claims 24
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims 21
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 21
- 239000007858 starting material Substances 0.000 claims 19
- 229910052760 oxygen Inorganic materials 0.000 claims 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 17
- 239000001301 oxygen Substances 0.000 claims 17
- 239000000047 product Substances 0.000 claims 17
- 238000011084 recovery Methods 0.000 claims 17
- 238000010411 cooking Methods 0.000 claims 15
- 239000003795 chemical substances by application Substances 0.000 claims 14
- 239000000395 magnesium oxide Substances 0.000 claims 12
- 239000002253 acid Substances 0.000 claims 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 9
- 239000007789 gas Substances 0.000 claims 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 8
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 7
- 238000010586 diagram Methods 0.000 claims 7
- 238000004886 process control Methods 0.000 claims 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims 6
- 239000002023 wood Substances 0.000 claims 6
- 230000003321 amplification Effects 0.000 claims 5
- 239000012717 electrostatic precipitator Substances 0.000 claims 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims 4
- 230000002378 acidificating effect Effects 0.000 claims 4
- 238000002360 preparation method Methods 0.000 claims 4
- 239000007787 solid Substances 0.000 claims 4
- 230000007423 decrease Effects 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical group OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 239000013505 freshwater Substances 0.000 claims 2
- 239000011777 magnesium Chemical class 0.000 claims 2
- 239000002994 raw material Substances 0.000 claims 2
- 235000010269 sulphur dioxide Nutrition 0.000 claims 2
- 239000004291 sulphur dioxide Substances 0.000 claims 2
- 239000002918 waste heat Substances 0.000 claims 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- -1 as a Ca ++ Chemical class 0.000 claims 1
- 238000000889 atomisation Methods 0.000 claims 1
- 150000001768 cations Chemical class 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 239000010881 fly ash Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 238000011545 laboratory measurement Methods 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000004537 pulping Methods 0.000 claims 1
- 230000002285 radioactive effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/12—Combustion of pulp liquors
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D21C7/12—Devices for regulating or controlling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
- F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
- F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/16—Measuring temperature burner temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/16—Controlling secondary air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Paper (AREA)
- Incineration Of Waste (AREA)
- Regulation And Control Of Combustion (AREA)
Claims (10)
CMg
C
-&kgr;-&Igr; Sollwert V für den Verbrennungsluftvolumenstrom, insbesondere für den Gesamtverbrennungsluftvolumenstrom, wird somit auch bei Auftreten von Störgrößen derart nachgeführt, daß die Verbrennungsprodukte der Ablauge möglichst große Mengen an hydratisierbaren Ausgangsstoffen für die Rückgewinnung der Aufschlußchemikalien enthalten. Als wesentliche Störgrößen des Systems werden dabei die Maßzahl für die Aschequalität Q und der Istwert des Sauerstoffgehaltes O2 im Rauchgas berücksichtigt. 12
-κ-λ The setpoint value V for the combustion air volume flow, in particular for the total combustion air volume flow, is thus adjusted even when disturbances occur in such a way that the combustion products of the waste liquor contain the largest possible quantities of hydratable starting materials for the recovery of the digestion chemicals. The key disturbances of the system are the measure of the ash quality Q and the actual value of the oxygen content O 2 in the flue gas.
7p + 7S =7* ♦♦
7p + 7S =7
15a2) contains a waste liquor combustion boiler (ZD,LVK) for the preferentially thickened waste liquor (SLD) of the pulp digester (ZK), and
15
Sollwert (7 ) für den Verbrennungsluftvolumenstrom (7) die Sollwerte (7p*,7s*) für den Regler (RPV) des Primärverbrennungsluftvolumenstromes (7p) und für den Regler (RSV) des Sekundärverbrennungsluftvolumenstromes (7^) bildet (FIG 3).*
Setpoint (7 ) for the combustion air volume flow (7) forms the setpoints (7 p *,7 s *) for the controller (RPV) of the primary combustion air volume flow (7 p ) and for the controller (RSV) of the secondary combustion air volume flow (7^) (FIG 3).
D-u
pHLoo.
You
pH
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9108104U DE9108104U1 (en) | 1991-07-02 | 1991-07-02 | Combustion plant for the waste liquor of a pulp digester with a control device for the combustion air |
DE4221404A DE4221404C2 (en) | 1991-07-02 | 1992-06-30 | Incinerator for the waste liquor of a pulp cooker with a control device for the combustion air |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9108104U DE9108104U1 (en) | 1991-07-02 | 1991-07-02 | Combustion plant for the waste liquor of a pulp digester with a control device for the combustion air |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9108104U1 true DE9108104U1 (en) | 1992-10-29 |
Family
ID=6868859
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9108104U Expired - Lifetime DE9108104U1 (en) | 1991-07-02 | 1991-07-02 | Combustion plant for the waste liquor of a pulp digester with a control device for the combustion air |
DE4221404A Expired - Fee Related DE4221404C2 (en) | 1991-07-02 | 1992-06-30 | Incinerator for the waste liquor of a pulp cooker with a control device for the combustion air |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4221404A Expired - Fee Related DE4221404C2 (en) | 1991-07-02 | 1992-06-30 | Incinerator for the waste liquor of a pulp cooker with a control device for the combustion air |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE9108104U1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5605452A (en) * | 1995-06-06 | 1997-02-25 | North American Manufacturing Company | Method and apparatus for controlling staged combustion systems |
DE19814385C1 (en) * | 1998-03-31 | 1999-10-07 | Siemens Ag | Process and device for process control and process optimization of chemical recovery in the manufacture of pulp |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2808935A1 (en) * | 1977-03-07 | 1978-09-14 | Waagner Biro Ag | Magnesium bi:sulphite boiling acid prodn. for pulping cellulose - using sulphur di:oxide from thermal decomposition of one fraction to increase acidity |
DE2825816A1 (en) * | 1977-07-01 | 1979-01-04 | Waagner Biro Ag | Magnesium bi:sulphite mfr. with low chloride content - obtd. from waste combustion gases produced in a lye boiler |
DE2950689A1 (en) * | 1979-12-17 | 1981-06-25 | Servo-Instrument, in Deutschland Alleinvertrieb der BEAB-Regulatoren GmbH u. Co KG, 4050 Mönchengladbach | CONTROL DEVICE FOR THE COMBUSTION AIR AMOUNT OF A FIREPLACE |
DE3043922A1 (en) * | 1980-11-21 | 1982-07-01 | PWA Papierwerke Waldhof-Aschaffenburg AG, 8000 München | Decarbonisation of magnesia ash from sulphite waste liquor combustion - by heating in gas contg. free oxygen |
DD216747A1 (en) * | 1983-07-07 | 1984-12-19 | Zellstoffwerk Goerlitz Veb | PROCESS FOR COOKING DEVICE ADJUSTMENT UNDER CONDUCT OF PROCESS MEASUREMENT SIZES |
DE3525248A1 (en) * | 1985-07-15 | 1987-01-15 | Herbert Dr Ing Furumoto | Method for controlling and optimising reactions |
US4891097A (en) * | 1985-03-18 | 1990-01-02 | Oy Tampella Ab | Method for regulating, the feeding-in or combustion conditions of concentrated spent liquors |
-
1991
- 1991-07-02 DE DE9108104U patent/DE9108104U1/en not_active Expired - Lifetime
-
1992
- 1992-06-30 DE DE4221404A patent/DE4221404C2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2808935A1 (en) * | 1977-03-07 | 1978-09-14 | Waagner Biro Ag | Magnesium bi:sulphite boiling acid prodn. for pulping cellulose - using sulphur di:oxide from thermal decomposition of one fraction to increase acidity |
DE2825816A1 (en) * | 1977-07-01 | 1979-01-04 | Waagner Biro Ag | Magnesium bi:sulphite mfr. with low chloride content - obtd. from waste combustion gases produced in a lye boiler |
DE2950689A1 (en) * | 1979-12-17 | 1981-06-25 | Servo-Instrument, in Deutschland Alleinvertrieb der BEAB-Regulatoren GmbH u. Co KG, 4050 Mönchengladbach | CONTROL DEVICE FOR THE COMBUSTION AIR AMOUNT OF A FIREPLACE |
DE3043922A1 (en) * | 1980-11-21 | 1982-07-01 | PWA Papierwerke Waldhof-Aschaffenburg AG, 8000 München | Decarbonisation of magnesia ash from sulphite waste liquor combustion - by heating in gas contg. free oxygen |
DD216747A1 (en) * | 1983-07-07 | 1984-12-19 | Zellstoffwerk Goerlitz Veb | PROCESS FOR COOKING DEVICE ADJUSTMENT UNDER CONDUCT OF PROCESS MEASUREMENT SIZES |
US4891097A (en) * | 1985-03-18 | 1990-01-02 | Oy Tampella Ab | Method for regulating, the feeding-in or combustion conditions of concentrated spent liquors |
DE3525248A1 (en) * | 1985-07-15 | 1987-01-15 | Herbert Dr Ing Furumoto | Method for controlling and optimising reactions |
Non-Patent Citations (7)
Title |
---|
APEL, W. * |
APEL, W.; WEISSER, H.: Neuer Laugenverbrennungskessel in Lenzing aus der Sicht des Energiebetriebes. In: VGB KRAFTWERKSTECHNIK 59, H.4, April 1979, S.316-326 |
et.al.: Chemical Recovery Process for High-Sulfidity Spent Cooking Liquor. In: TAPPIVol.53, No.2, 1970, S.278-281 * |
FUKUI, Saburo * |
Ullmanns Encyklopädie der technischen Chemie, 3. Aufl., Bd.18, 1967, S.762-764 * |
WEISSER, H.: Betriebserfahrungen mit dem neuen Laugeverbrennungskessel in Lenzing mit Hinweisen auf die ebenfalls neue MgO-SO2-Rückgewinnungs- anlage. In: VGB KRAFTWERKSTECHNIK, H.2, Feb.1980, S.73-81 * |
WEISSER, H.: Neuer Laugenverbrennungs- kessel in Lenzing aus der Sicht des Energiebe- triebes. In: VGB KRAFTWERKSTECHNIK 59, H.4, April 1979, S.316-326 * |
Also Published As
Publication number | Publication date |
---|---|
DE4221404A1 (en) | 1993-01-14 |
DE4221404C2 (en) | 1994-04-28 |
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