DE407278C - Pulp cooking process - Google Patents
Pulp cooking processInfo
- Publication number
- DE407278C DE407278C DEZ13186D DEZ0013186D DE407278C DE 407278 C DE407278 C DE 407278C DE Z13186 D DEZ13186 D DE Z13186D DE Z0013186 D DEZ0013186 D DE Z0013186D DE 407278 C DE407278 C DE 407278C
- Authority
- DE
- Germany
- Prior art keywords
- lye
- heat storage
- caustic
- steam
- cooking process
- 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
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000010411 cooking Methods 0.000 title claims description 6
- 239000003518 caustics Substances 0.000 claims description 9
- 238000005338 heat storage Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 5
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 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
- D21C7/00—Digesters
- D21C7/10—Heating devices
Landscapes
- Cookers (AREA)
- Paper (AREA)
Description
Zellstoffkochverfahren. Zusatz zum Patent 4o6445. Nach dem Hauptpatent wird Sulfitlauge außerhalb des Kochers mittels Frischdampf, überschüssigem oder Abdampf in geschlossenen Druckbehältern angewärmt. Auch kann die in dem betreffenden Druckbehälter außerhalb des Kochers angeheizte Lauge zum Aufspeichern von Wärme benutzt werden, so daß nach Bedarf Dampf aus dem Gasraum des Druckbehälters entnommen werden kann und für beliebige Kochungen zur Verfügung steht.Pulp cooking process. Addition to patent 4o6445. According to the main patent is sulphite liquor outside the cooker by means of live steam, excess or Exhaust steam warmed up in closed pressure vessels. Can also be used in the relevant Pressure vessel outside of the cooker heated lye to store heat be used so that steam is taken from the gas space of the pressure vessel as required can be and is available for any cooking.
Die vorliegende Erfindung will bei einem derartigen Verfahren eine weitere beträchtliche Vermehrung der erzielbaren Vorteile erreichen. Während nämlich nach dem Verfahren des Hauptpatentes die Lauge der Laugedruckbehälter die Dampfschwankungen aufzunehmen hat, werden gemäß vorliegender Erfindung diese Schwankungen des Dampfverbrauches ganz oder teilweise, unter Verwendung von Dampfmengenregelorganen, durch das Zusammenschalten von mit Wasser gefüllten Wärmespeichern und mit Wärmespeichern, die Lauge enthalten, aufgenommen und ausgeglichen. Und zwar können die Dampfverbrauchsschwankungen entweder von dem mit Wasser gefüllten Wärmespeicher oder dem mit Lauge gefüllten Wärmespeicher oder von beiden zusammen dauernd oder zeitweise geregelt werden.The present invention seeks one in such a method achieve a further substantial increase in the achievable benefits. While namely according to the method of the main patent the lye of the caustic pressure tank the steam fluctuations according to the present invention, these fluctuations in steam consumption will be included in whole or in part, using steam flow regulators, by interconnecting them of heat accumulators filled with water and with heat accumulators that contain lye, absorbed and balanced. Namely, the steam consumption fluctuations can either from the heat storage tank filled with water or the heat storage tank filled with lye or be regulated by both together permanently or temporarily.
Als Wärmespeicher kann man z. B. R u t h-Speicher verwenden, aus denen z. B. nach Bedarf der Laugedruckbehälter mit Dampf versorgt, also geheizt wird. Die Kombination von Vasserwärmespeichern mit Laugewärmespeichern gewährt den Vorteil, daß in noch kürzerer Zeit, als es nach dem Hauptpatent möglich ist, die Frischlauge der Laugedruckbehälter angeheizt werden kann. Auch die Pufferwirkung derartig kombinierter IVasser-und Laugewärmebehälter ist bedeutend besser, als wenn man z. B. nur Laugewärmespeicher benutzt.As a heat store you can z. B. Use R u t h memory from which z. B. is supplied with steam as required, the caustic tank is heated. The combination of water heat accumulators with caustic heat accumulators gives the advantage of that in even less time than is possible according to the main patent, the fresh liquor the suds pressure tank can be heated up. The buffer effect is also combined in this way I water and caustic heater is significantly better than if you z. B. only caustic heat storage used.
Da ferner gemäß dem Hauptpatent die außerhalb des Kochers angeheizte Lauge auch nach Bedarf entspannt, also die dadurch frei werdenden Dämpfe zu Kochungen herangezogen werden, entsteht bei den Drucksenkungen in den Laugedruckbehältern nicht nur ein Nachverdampfen des Wassers der Lauge, sondern es wird auch gleichzeitig schweflige Säure frei, die von dem webströmenden Dampf mit entführt wird. Dadurch gelangt die Lauge in einen für neue Kochprozesse unvorteilhaften Zustand. Um dies zu verhindern, wird gemäß vorliegender Erfindung in die ganz oder teilweise entspannte Lauge schweflige Säure eingepreßt, und zwar entweder direkt in die Lauge der Laugedruckbehälter oder auf ihrem Wege vom Laugebehälter in "neue Kochprozesse. Man kann die schweflige, säurearme Lauge auch in die Kocher überführen und schweflige Säure in die Kocher einpressen.Since furthermore, according to the main patent, the heated outside of the cooker Lye also relaxes as required, i.e. the vapors released as a result for boiling are used, occurs when the pressure drops in the caustic pressure tanks not only a re-evaporation of the water of the lye, but it also takes place at the same time sulphurous acid is released, which is carried away by the steam flowing through the web. Through this the lye becomes unfavorable for new cooking processes. To this to prevent, according to the present invention in the fully or partially relaxed Lye pressed in sulphurous acid, either directly into the lye in the caustic pressure tank or on their way from the caustic pot to "new cooking processes. You can do the sulphurous, Also transfer low-acid lye into the cooker and sulphurous acid into the cooker press in.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ13186D DE407278C (en) | 1922-06-13 | 1922-06-13 | Pulp cooking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ13186D DE407278C (en) | 1922-06-13 | 1922-06-13 | Pulp cooking process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE407278C true DE407278C (en) | 1924-12-10 |
Family
ID=7623106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEZ13186D Expired DE407278C (en) | 1922-06-13 | 1922-06-13 | Pulp cooking process |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE407278C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1060240B (en) * | 1954-05-17 | 1959-06-25 | Aschaffenburger Zellstoffwerke | Process for warming up sulphite cooking acid while filling a cellulose digester with acid |
-
1922
- 1922-06-13 DE DEZ13186D patent/DE407278C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1060240B (en) * | 1954-05-17 | 1959-06-25 | Aschaffenburger Zellstoffwerke | Process for warming up sulphite cooking acid while filling a cellulose digester with acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE407278C (en) | Pulp cooking process | |
| EP0080706A2 (en) | Process for the discontinuous ebullition of the wort during the preparation of beer | |
| DE660507C (en) | Method and device for utilizing the calorific value of sulphite pulp waste liquor | |
| DE663793C (en) | Process for the production of cellulose from wood, in particular from wood rich in resin, by cooking the wood in stages under pressure | |
| DE639556C (en) | Process and device for the production of sulphite pulp | |
| DE404504C (en) | Process and device for the production of sulphite pulp | |
| DE322270C (en) | Process for emptying pulp digesters | |
| AT201420B (en) | Method of filling cellulose stoves | |
| DE429660C (en) | Laundry kettle with water heater | |
| DE361065C (en) | Process for the recovery of the sulphurous acid and the heat from the exhaust of pulp digesters | |
| DE703318C (en) | Method and device for opening up pulp-containing fiber material | |
| AT92284B (en) | Process for the recovery of the sulphurous acid and the heat in the exhaust of pulp digesters. | |
| DE589751C (en) | Process for the production of pulp from pulp-containing fiber material | |
| DE537607C (en) | Process for processing nitric earth | |
| DE619356C (en) | Electrically heated hot water storage tank | |
| DE619072C (en) | Process for obtaining low-water salts | |
| DE530111C (en) | Process and device for the production of acetylene from carbide and water in large-scale operations with the simultaneous production of practically dry hydrated lime | |
| DE1060240B (en) | Process for warming up sulphite cooking acid while filling a cellulose digester with acid | |
| DE583324C (en) | Process for the production of furfural | |
| DE1089256B (en) | Process and plant for the production of cellulose by boiling wood with bisulfite liquor | |
| DE659664C (en) | Process for the most complete recovery of the sulfite pulp waste liquor in concentrated form | |
| DE355602C (en) | Process for evaporation of liquids | |
| AT99213B (en) | Alternating steaming process for the production of cedar wood substitute from softwood. | |
| DE454210C (en) | Method and apparatus for washing wound viscose rayon with recovery of the carbon disulfide | |
| DE20691C (en) | Innovations in dyeing loose cotton black |