DE1015412B - Process for drying filter material by means of infrared radiation - Google Patents
Process for drying filter material by means of infrared radiationInfo
- Publication number
- DE1015412B DE1015412B DEZ3906A DEZ0003906A DE1015412B DE 1015412 B DE1015412 B DE 1015412B DE Z3906 A DEZ3906 A DE Z3906A DE Z0003906 A DEZ0003906 A DE Z0003906A DE 1015412 B DE1015412 B DE 1015412B
- Authority
- DE
- Germany
- Prior art keywords
- infrared radiation
- filter
- filter material
- drying
- drying filter
- 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.)
- Pending
Links
- 230000005855 radiation Effects 0.000 title claims description 10
- 238000001035 drying Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009298 carbon filtering Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/52—Arrangements wherein a dial or the like is mechanically coupled to a line selector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
- B01D33/09—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Drying Of Solid Materials (AREA)
Description
Verfahren zur Trocknung von Filtergut mittels Infrarotbestrahlung Es ist bekannt, daß man bei normalen Saugfiltern, auf denen man feinste schlammartige nasse Produkte filtert, also von Schlamm-, Plan-, Scheibenfiltern u. a. m., die Trocknung mittels Vakuum so weit treibt, wie es die Apparatur bzw. die Konsistenz des Filtergutes gestattet.Process for drying filter material by means of infrared radiation It is known that with normal suction filters, on which one finest muddy filters wet products, i.e. from sludge, flat, disc filters and others. m., the Vacuum drying drives as far as the equipment or the consistency allows of the filter material permitted.
Bei sehr vielen Produkten, z. B. in der Erzaufbereitung, also bei Erzkonzentraten, bei Kohlefilterung oder bei chemischen Produkten, aber auch in der Papier- und Zellstoffindustrie usw., ist es von großer Bedeutung, den Wassergehalt soweit wie möglich herunterzudrücken. In the case of a large number of products, e.g. B. in ore processing, so at Ore concentrates, for carbon filtering or for chemical products, but also in the pulp and paper industry, etc., it is of great importance to the water content as far as possible.
Um bei Anwendung von Vakuumfiltern die Filterarbeit, d. h. den Wasserentzug, wesentlich zu steigern, wird erfindungsgemäß vorgeschlagen, daß der Filterkuchen kurz nach seinem Herausheben aus dem Filtergut durch Infrarotbestrahlung mit Tiefenwirkung getrocknet wird. In order to improve the filter work when using vacuum filters, i. H. dehydration, to increase significantly, it is proposed according to the invention that the filter cake shortly after it was lifted out of the filter material by infrared radiation with a depth effect is dried.
Es ist zwar bekannt, Infrarotstrahlen zur weiteren Trocknung von festen Substanzen zu verwenden, doch wird durch das erfindungsgemäße Verfahren nicht nur eine Trocknung des Filterkuchens, sondern auch eine Steigerung der Filterleistung erreicht. Although it is known to use infrared rays for further drying of to use solid substances, but not by the method according to the invention only a drying of the filter cake, but also an increase in the filter performance achieved.
Durch die Infrarotbes trahlung mit Tiefenwirkung während des Filtrationsvorganges tritt beim Filterkuchen nicht nur eine erhöhte Verdunstung seines Wassers ein, sondern diese Bestrahlung fördert auch durch eine Erwärmung der flüssigen Phase auf dem Umweg über die festen Teilchen, mit der damit verbundenen Herabsetzung der Viskosität und der Oberflächenspannung, die Absaugung der flüssigen Phase und führt so zur erhöhten Herabsetzung des Feuchtigkeitsgehaltes. Due to the infrared radiation with depth effect during the filtration process In the case of the filter cake, there is not only increased evaporation of its water, but also this irradiation also promotes heating of the liquid phase on the Detour via the solid particles, with the associated reduction in viscosity and the surface tension, the suction of the liquid phase and thus leads to increased reduction in moisture content.
Entsprechende Versuche mit Trommelfiltern, auf denen Zinkkonzentrate mit etwa 45°/oZn getrocknet wurden, erbrachten bei bisheriger Filtertrocknung 11 bis 12O/o Nässegehalt. Durch Infrarotbestrahlung gelang es, den Wassergehalt auf 8 bis 81/20/0 zu vermindern. Dieser um 21/2 bis 3 0/o geringere Wassergehalt spielt eine wesentliche Rolle bei der anschließenden Weiterverarbeitung der Konzentrate. Corresponding experiments with drum filters on which zinc concentrates were dried with about 45 ° / oZn, yielded 11 with previous filter drying up to 12O / o moisture content. By means of infrared radiation it was possible to increase the water content 8 to 81/20/0 to decrease. This plays a role in the water content, which is 21/2 to 3 0 / o lower plays an important role in the subsequent processing of the concentrates.
Es ist weiterhin bekannt, ein durch Infrarotbestrahlung zu trocknendes Material während dieses Trockenvorganges zu wenden. It is also known to be dried by infrared radiation Turn the material over during this drying process.
Man kann daher nicht nur zur Verbesserung der Trocknung, sondern auch zur weiteren Herabdrückung des Wassergehaltes den Filterkuchen wenden, indem dieser vorzeitig von der Filterschicht abgehoben und beim Umwälzen des Kuchens nochmals bestrahlt wird. One can therefore not only improve drying, but also for further depression of the water content turn the filter cake by adding this is lifted prematurely from the filter layer and again when the cake is circulated is irradiated.
Aus der Zeichnung ist die Anordnung der Infrarotbestrahlung zu ersehen. The arrangement of the infrared radiation can be seen in the drawing.
Das Trommelfilter T, das aus der Filterwanne FW den Kuchen IC ansaugt, wird nach dem Austritt aus dem Wasserspiegel W durch Infrarotbestrahler I, die in größerer Anzahl seitlich vor der Filtertrommel angebracht sind, bestrahlt und trocknet auf diese Weise den filterkuchen. The drum filter T, which sucks in the cake IC from the filter pan FW, after exiting the water level W by infrared radiators I, which in A larger number are attached to the side in front of the filter drum, irradiated and dries in this way the filter cake.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ3906A DE1015412B (en) | 1954-01-02 | 1954-01-02 | Process for drying filter material by means of infrared radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ3906A DE1015412B (en) | 1954-01-02 | 1954-01-02 | Process for drying filter material by means of infrared radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1015412B true DE1015412B (en) | 1957-09-12 |
Family
ID=7618954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEZ3906A Pending DE1015412B (en) | 1954-01-02 | 1954-01-02 | Process for drying filter material by means of infrared radiation |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1015412B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1244661B (en) * | 1959-06-10 | 1967-07-13 | Preformed Line Products Co | Clamp arrangement on the supporting rims of a dryer roll |
| DE10242352B4 (en) * | 2002-09-12 | 2007-09-27 | Ing. Häcker Maschinen GmbH | Process for drying a moisture-containing material and apparatus for carrying out the process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2355670A (en) * | 1941-08-13 | 1944-08-15 | Gump B F Co | Apparatus for treating wheat germs |
| US2360257A (en) * | 1941-12-10 | 1944-10-10 | Gen Motors Corp | Drying apparatus and method |
| US2579944A (en) * | 1945-04-09 | 1951-12-25 | Colgate Palmolive Peet Co | Process and apparatus for coating particulate material |
-
1954
- 1954-01-02 DE DEZ3906A patent/DE1015412B/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2355670A (en) * | 1941-08-13 | 1944-08-15 | Gump B F Co | Apparatus for treating wheat germs |
| US2360257A (en) * | 1941-12-10 | 1944-10-10 | Gen Motors Corp | Drying apparatus and method |
| US2579944A (en) * | 1945-04-09 | 1951-12-25 | Colgate Palmolive Peet Co | Process and apparatus for coating particulate material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1244661B (en) * | 1959-06-10 | 1967-07-13 | Preformed Line Products Co | Clamp arrangement on the supporting rims of a dryer roll |
| DE10242352B4 (en) * | 2002-09-12 | 2007-09-27 | Ing. Häcker Maschinen GmbH | Process for drying a moisture-containing material and apparatus for carrying out the process |
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