DE976339C - Tube mill with frustoconical armoring, one behind the other, forming annular surfaces - Google Patents
Tube mill with frustoconical armoring, one behind the other, forming annular surfacesInfo
- Publication number
- DE976339C DE976339C DEM19505A DEM0019505A DE976339C DE 976339 C DE976339 C DE 976339C DE M19505 A DEM19505 A DE M19505A DE M0019505 A DEM0019505 A DE M0019505A DE 976339 C DE976339 C DE 976339C
- Authority
- DE
- Germany
- Prior art keywords
- behind
- annular surfaces
- armoring
- frustoconical
- tube mill
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/22—Lining for containers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Description
Rohrmühlen mit einer konischen Ringfläche oder mit mehreren axial hintereinanderliegenden konischen Ringflächen sind bekannt. Bei dieser Ausgestaltung des Innenraumes von Rohrmühlen ist der größere Durchmesser der konischen Ringfläche; dem Einlauf zugekehrt. Diese konischen Ringflächen bewirken eine Sortierung der Mahlkörper in der Weise, daß die großen Mahlkörper am Einlauf liegen und das grobe Mahlgut bearbeiten, während die kleineren Mahlkörper dem Auslauf zu sich befinden und auf das feine Mahlgut wirken.Tube mills with a conical ring surface or with several axially one behind the other conical ring surfaces are known. In this configuration, the interior of tube mills is the larger diameter of the conical ring surface; facing the enema. These conical Ring surfaces cause the grinding media to be sorted in such a way that the large grinding media lie at the inlet and process the coarse grist, while the smaller grinding media remove the Spout and act on the fine grist.
Ferner ist bekannt, daß diese konischen Innenflächen mit Rippen oder sonstigen Erhöhungen versehen sind, die aber, wo es sich um mehrere in Achsrichtung hintereinanderliegende konische Ringflächen in einer Mühle handelt, längs der axialen Erstreckung der einzelnen Ringflächen gleich hoch sind. Es ist lediglich bereits· vorgeschlagen worden, diese Erhöhungen von Ringzu Ringfläche, also stufenweise zum Auslaufende hin, niedriger zu machen.It is also known that these conical inner surfaces with ribs or other elevations are provided, but where there are several conical ones lying one behind the other in the axial direction Is ring surfaces in a mill, along the axial extent of the individual ring surfaces are equal. It has merely been suggested that these ridges be closed by Ring To make the ring area, so gradually towards the end of the line, lower.
Durch die Erfindung soll die Sortierwirkung der konischen Ringflächen auf die Mahlkörper nochThe invention is intended to increase the sorting effect of the conical ring surfaces on the grinding media
as dadurch erhöht werden, daß die Längsrippen innerhalb der einzelnen Ringflächen vom großen zum kleinen Durchmesser niedriger werden.as can be increased by the fact that the longitudinal ribs within of the individual ring surfaces become smaller from the large to the small diameter.
Infolge der höheren Rippen im Bereich der großen Durchmesser der einzelnen Ringflächen werden die Mahlkörper höher gehoben, als wenn die Rippen über den axialen Verlauf der Ringflächen gleich hoch wären. Es entsteht dadurch an den Stoßstellen der einzelnen Ringflächen ein Energiegefälle bezüglich der Mahlkörperbewegun-Sen, das dem Einlauf der Mühle zugekehrt ist. Durch dieses Energiegefälle, das größer ist, als wenn die Rippen durchgehend gleich hoch wären, fallen oder rutschen die Mahlkörper aus den Bereichen der großen Durchmesser im statistischen Mittel ebenfalls in verstärktem Maße in die jeweils davorliegenden konischen Ringflächen. Unten werden im Bereich der großen Durchmesser die Mahlkörper durch die höheren Rippen festgehalten und sofort wieder hochgehoben. Innerhalb derselben konischen Ringfläche werden dem kleineren Durchmesser zu — infolge der niedriger werdenden Rippen — die Mahlkörper nicht so rasch gefaßt und mit hochgenommen, sie trudeln hier etwas, wobei die großen Mahlkörper infolge ihrer größeren Masse schneller in den Bereich des großen Durchmessers gelangen als die kleineren Mahlkörper.As a result of the higher ribs in the area of the large diameter of the individual ring surfaces the grinding media are raised higher than when the ribs over the axial course of the annular surfaces would be the same. This creates a at the joints between the individual ring surfaces Energy gradient in relation to the grinding body movement that faces the inlet of the mill. Because of this energy gradient, which is greater than if the ribs were consistently the same height, the grinding media fall or slide out of the areas the large diameter in the statistical mean also increased in each case in front of it conical ring surfaces. At the bottom, in the area of the large diameter, the Grinding media held by the higher ribs and lifted up again immediately. Within the same conical ring surface become the smaller diameter - as a result of the lower developing ribs - the grinding media not picked up and picked up so quickly, they spin Something here, whereby the large grinding media, due to their greater mass, move more quickly into the area of the larger diameter than the smaller grinding media.
Diese Bewegung der Mahlkörper, hervorgerufen durch die abnehmende Höhe der Rippen vom großen zum kleinen Durchmesser der konischen Ringflächen, gestattet die Anwendung von Konen mit einer geringen Neigung der Innenflächen gegen die Rohrwand. Daraus ergeben sich die Vorteile, daß die Panzerplatten leichter werden, der Mahlraum weniger eingeengt wird und daher mehr Mahlkörper fassen kann; außerdem fließt das Mahlgut leichter durch die Mühle, weil die Absätze niedriger sind. In der Zeichnung ist eine Darstellung des Erfindungsgegenstandes im Schnitt veranschaulicht.This movement of the grinding media, caused by the decreasing height of the ribs from the large to small diameter of the conical ring surfaces, allows the use of cones with a slight inclination of the inner surfaces against the pipe wall. This results in the advantages that the armor plates are lighter, the grinding chamber is less restricted and therefore more Can hold grinding media; In addition, the grist flows more easily through the mill because the heels are lower. The drawing shows a representation of the subject matter of the invention in section illustrated.
In dem Mühlenmantel α sind Panzerplatten b mit konischen Ringflächen befestigt. Die in Achsrichtung verlaufenden Rippen c auf diesen konischen Ringflächen sind im Bereich der großen Durchmesser höher als im Bereich der kleinen Durchmesser.Armor plates b with conical annular surfaces are fastened in the mill jacket α. The axially extending ribs c on these conical annular surfaces are higher in the area of the large diameter than in the area of the small diameter.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM19505A DE976339C (en) | 1953-07-27 | 1953-07-28 | Tube mill with frustoconical armoring, one behind the other, forming annular surfaces |
FR1107276D FR1107276A (en) | 1953-07-27 | 1954-06-29 | Hollow Roller Mill |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE325566X | 1953-07-27 | ||
DE1107276X | 1953-07-27 | ||
DEM19505A DE976339C (en) | 1953-07-27 | 1953-07-28 | Tube mill with frustoconical armoring, one behind the other, forming annular surfaces |
Publications (1)
Publication Number | Publication Date |
---|---|
DE976339C true DE976339C (en) | 1963-07-11 |
Family
ID=27625044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM19505A Expired DE976339C (en) | 1953-07-27 | 1953-07-28 | Tube mill with frustoconical armoring, one behind the other, forming annular surfaces |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE976339C (en) |
FR (1) | FR1107276A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1296944B (en) * | 1966-02-05 | 1969-06-04 | Gv P I Nii Tsementnoi Prom | Classifying armored lining for pipe mills |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE736856A (en) * | 1969-07-31 | 1969-12-31 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT42797B (en) * | 1909-01-20 | 1910-06-25 | Franz Eschmann | Tube ball mill. |
US1520537A (en) * | 1923-03-16 | 1924-12-23 | Markus Louis De | Method and apparatus for pulverizing |
FR911444A (en) * | 1943-08-17 | 1946-07-08 | Henricot Usines Emile Sa | Rotary ball mill |
FR950736A (en) * | 1946-03-05 | 1949-10-05 | Inner shield for ball mills | |
DE972348C (en) * | 1952-08-06 | 1959-07-09 | Henricot Usines Emile Sa | Ball mill |
-
1953
- 1953-07-28 DE DEM19505A patent/DE976339C/en not_active Expired
-
1954
- 1954-06-29 FR FR1107276D patent/FR1107276A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT42797B (en) * | 1909-01-20 | 1910-06-25 | Franz Eschmann | Tube ball mill. |
US1520537A (en) * | 1923-03-16 | 1924-12-23 | Markus Louis De | Method and apparatus for pulverizing |
FR911444A (en) * | 1943-08-17 | 1946-07-08 | Henricot Usines Emile Sa | Rotary ball mill |
FR950736A (en) * | 1946-03-05 | 1949-10-05 | Inner shield for ball mills | |
DE972348C (en) * | 1952-08-06 | 1959-07-09 | Henricot Usines Emile Sa | Ball mill |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1296944B (en) * | 1966-02-05 | 1969-06-04 | Gv P I Nii Tsementnoi Prom | Classifying armored lining for pipe mills |
Also Published As
Publication number | Publication date |
---|---|
FR1107276A (en) | 1955-12-29 |
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