DE581322C - Process for drying Duengesalzen or chlorinated potassium in the potash industry - Google Patents
Process for drying Duengesalzen or chlorinated potassium in the potash industryInfo
- Publication number
- DE581322C DE581322C DE1930581322D DE581322DD DE581322C DE 581322 C DE581322 C DE 581322C DE 1930581322 D DE1930581322 D DE 1930581322D DE 581322D D DE581322D D DE 581322DD DE 581322 C DE581322 C DE 581322C
- Authority
- DE
- Germany
- Prior art keywords
- drying
- duengesalzen
- potash industry
- chlorinated potassium
- potash
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fertilizers (AREA)
Description
Verfahren zum Trocknen von Düngesalzen oder Chlorkalium der Kaliindustrie In der Beschreibung des Hauptpatentes 570 150 ist die Bedeutung einer kombinierten Gleich- und Gegenstromgasführung für die Trocknung von Salzen, welche dauernd ihre Streufähigkeit behalten sollen, erläutert worden.Process for drying fertilizer salts or potassium chlorine in the potash industry In the description of the main patent 570 150 , the importance of a combined cocurrent and countercurrent gas flow for the drying of salts, which should permanently retain their throwing power, has been explained.
Es hat sich nun herausgestellt, daß es an der Salzeintrittsstelle bei den Trockentrommeln hauptsächlich darauf ankommt, genügend Wärme für die Verdampfung der Feuchtigkeit zur Verfügung zu haben. Während es hier also lediglich auf die Wärmemenge, nicht aber auf die Temperatur ankommt, spielt letztere an der Salzaustrittsstelle eine ausschlaggebende Rolle für die Erreichung der günstigen Beschaffenheit des Endproduktes. Da hier jedoch nur geringe Feuchtigkeitsmengen auszutreiben sind, können dementsprechend auch die Heizgasmengen relativ gering sein.It has now been found that it is at the point of entry of the salt In the case of drying drums, it is important to have enough heat for evaporation to have the moisture available. So while here it only refers to the The amount of heat, but not the temperature, plays a role at the point where the salt emerges plays a crucial role in achieving the favorable nature of the End product. However, since only small amounts of moisture have to be expelled here, Accordingly, the quantities of heating gas can also be relatively small.
Eine wirtschaftliche Heizggsführung im Sinne obiger Darlegungen läßt sich nun gemäß der Erfindung dadurch erreichen, daß man entweder die gesamten Heizgase zum Zwecke der Nachtrocknung zuerst im Gegenstrom durch die Fertigtrockentrommel leitet und sie hierauf im Gleichstrom durch die Vortrockentrommel führt, oder dadurch, daß man einen mehr oder weniger kleinen Teilstrom diesen Weg führt und einer Zusatzfeuerung den fehlenden Wärmebedarf für die vollständige Vortrocknung entnimmt.An economical Heizggsführung in the sense of the above can be can now be achieved according to the invention in that either all of the heating gases for the purpose of post-drying, first in countercurrent through the finished drying drum conducts it and then leads it in cocurrent through the pre-drying drum, or through it, that one leads a more or less small partial stream this way and an additional firing takes the missing heat requirement for complete pre-drying.
Es sind zwar schon Trockenvorrichtungen bekannt, in denen pflanzliche-Stoffe und auch festes, breiiges oder flüssiges Gut getrocknet werden soll und bei denen die an der Austrittsstelle des Trockengutes entweichenden Gase zur Vortrocknung nutzbar gemacht werden. Es handelt sich bei den bekannten Verfahren .aber weniger um die Ausnutzung des Wärmeinhalts dieser wenig über roo° heißen Gase, die schon an Wasserdampf beinahe gesättigt sind und nur eine geringe Trockenwirkung haben, sondern diese Gase sollen vielmehr infolge ihres hohen Feuchtigkeitsgehaltes eine schonende Behandlung des empfindlichen Gutes gewährleisten.There are already drying devices known in which plant-based substances and also solid, pulpy or liquid goods are to be dried and with which the gases escaping at the exit point of the dry material for pre-drying can be made usable. The known processes are, but less so about the utilization of the heat content of these little over roo ° hot gases, which already are almost saturated with water vapor and have only a low drying effect, Rather, these gases are supposed to be due to their high moisture content ensure gentle handling of the sensitive goods.
Demgegenüber sollen nach dem Verfahren gemäß der Erfindung die bei der Nachtrocknung äustretenden heißen Gase, deren Temperatur mehrere hundert Grad über der Verdampfungstemperatur des, Wassers liegt und die außerdem äußerst wenig Wasserdampf enthalten, zur Verbesserung des Verfahrens nach dem Hauptpatent bei der Vortrocknung nutzbar gemacht werden, um dort fast dieselbe Wirkung. hervorzurufen wie die unmittelbar zugeführten Heizgase.In contrast, according to the method according to the invention, the at the hot gases emitted from the drying process, the temperature of which is several hundred degrees above the evaporation temperature of the water and which is also extremely little Contain water vapor to improve the process according to the main patent the pre-drying can be made available to there almost the same Effect. like the directly supplied heating gases.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE581322T | 1930-09-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE581322C true DE581322C (en) | 1933-07-25 |
Family
ID=6571023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930581322D Expired DE581322C (en) | 1930-09-11 | 1930-09-11 | Process for drying Duengesalzen or chlorinated potassium in the potash industry |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE581322C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032697B (en) * | 1952-12-05 | 1958-06-19 | Zsigmond De Galocsy | Method and device for the extraction of superheated high-pressure steam from the moisture to be dried |
-
1930
- 1930-09-11 DE DE1930581322D patent/DE581322C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032697B (en) * | 1952-12-05 | 1958-06-19 | Zsigmond De Galocsy | Method and device for the extraction of superheated high-pressure steam from the moisture to be dried |
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