DE812740C - Sieve for sorting out, in particular, spherical weed seeds from grain - Google Patents
Sieve for sorting out, in particular, spherical weed seeds from grainInfo
- Publication number
- DE812740C DE812740C DEP10187A DEP0010187A DE812740C DE 812740 C DE812740 C DE 812740C DE P10187 A DEP10187 A DE P10187A DE P0010187 A DEP0010187 A DE P0010187A DE 812740 C DE812740 C DE 812740C
- Authority
- DE
- Germany
- Prior art keywords
- sieve
- spherical
- weed seeds
- grain
- sorting out
- 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
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4654—Corrugated Screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/469—Perforated sheet-like material
Landscapes
- Soil Working Implements (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
Die den Samenauslesern (Trieuren) zugrunde liegende bekannte Aufgabe, kugelige Unkrautsamen aus Getreide auszulesen, kann in einfacherer Weise auch durch ein vornehmlich in Rüttelbelvegungen zu versetzendes und geneigt angeordnetes Sieb gelöst «erden, das gemäß der Erfindung in der Körnerlaufrichtung entweder wellenförmig gestaltet oder fortlaufend nach der einen und anderen Seite winklig abgebogen ist und das zweckmäßig an den ansteigenden Flächen der Wellenberge mit Rundlochungen etwa entsprechend der Größe der auszusondernden Unkrautsamen ausgestattet ist. Das Sieb, das durch Pressen oder Abkanten und Lochen erzeugt werden kann, wird vorzugsweise an einer Seite mit den Unkrautsamen enthaltendem Getreide beschickt und der Siebübergang an der gegenüberliegenden Seite abgeführt. Während des Herüberwanderns des in ganzer Breite aufgegebenen Gutes über das Sieb hinweg werden d'ie länglichen Getreidekörner gleichgerichtet und quer in die quer zum Körnerlauf liegenden Rillen hineingelegt. Bei den Schüttelbewegungen des Siebes gleiten sie über die Scheitel der Wellenberge hinweg aus einer Rille in die nächste und so fort bis zum Siebausgang, wobei sie über die Rundlochungen hinwegbewegt werden, ohne durch das Sieb hindurchzufallen. Die kugeligen Unkrautsamen betten sich auf demselben Wege in die Rundlochungen und fallen als Siebdurchgang uii ten heraus, zumal die Rundlochung im Durchmesser so gewählt ist, daß die runden Samen darin ringsum Luft haben.The known task on which the seed separators (trieurs) are based, Picking out spherical weed seeds from grain can also be done in a simpler way a sieve that is primarily to be set in vibratory movements and arranged at an angle solved «earth, which according to the invention is either wavy in the grain direction designed or continuously bent at an angle to one side and the other and this is useful on the rising surfaces of the wave crests with round holes approximately corresponding to the size of the weed seeds to be removed. That Sieve, which can be produced by pressing or folding and punching, is preferred loaded with grain containing weed seeds on one side and the sieve transition discharged on the opposite side. While wandering across the whole The long grains of grain that are fed across the sieve become elongated in the same direction and placed transversely in the grooves lying transversely to the grain run. When the sieve shakes, they slide over the crests of the wave crests away from one groove into the next and so on to the sieve exit, whereby they be moved over the round holes without falling through the sieve. The spherical weed seeds are embedded in the round holes and in the same way fall out as a sieve passage, especially since the diameter of the round perforations is so it is chosen that the round seeds have air all around.
Eine erhöhte Wirkung kann erreicht werden, wenn man das Siebgut auf dem Siebe einer Windströmung aussetzt, die entweder von unten nach oben durch die Sieblochung geht oder an der Unter-und Oberseite des' Siebes vorbeistreicht. Durch die Windbewegung werden die länglichen Getreidekörner leicht tänzelnd in der Schwebe gehalten oder vorwärts gestoßen, so daß sie leicht die Rundlochung überwinden, ohne in diese einzukippen. Die kugeligen Unkrautsamen und halbe Getreidekörner fallen dagegen leicht in die Rundlochung ein, da sie dem Wind weniger Angriffsflächen bieten. Die Rüttelbewegung des Siebes kann so gewählt sein, .daß die in den Wellentälern liegenden Getreidekörner immer. gerade von einem Wellental zum anderen gefördert werden.An increased effect can be achieved if the material to be screened is opened the sieve exposed to a wind current either from bottom to top through the Sieve perforation goes or brushes past the bottom and top of the sieve. By As the wind moves, the elongated grains are gently prancing in suspension held or pushed forward so that they easily overcome the round holes without to tip into this. The spherical weed seeds and half grains fall on the other hand, slightly into the round perforations, as they offer less exposure to the wind. The shaking movement of the sieve can be chosen so that. That in the wave troughs lying cereal grains always. just promoted from one trough to another will.
Die Rundlochung wirkt am günstigsten, wenn sie auf den ansteigenden Flächen der Wellenberge kurz vor deren Scheitel angeordnet ist.The round perforation works best when it is on the ascending one Areas of the wave crests is arranged just before their apex.
Bei der winklig abgebogenen Form des Siebes können die ansteigenden Flächen gegenüber den absteigenden Flächen gleich oder ungleich sein.With the angled shape of the sieve, the ascending Areas can be equal or unequal to the descending areas.
In der Zeichnung ist ein Ausführungsbeispiel des neuen Siebes im Längsschnitt (Fig. i) und im Grundriß (Fig.2) dargestellt. Andere Siebformen zeigen die Fig. 3 bis 5 je im Schaubilde.In the drawing, an embodiment of the new screen is in longitudinal section (Fig. I) and in plan (Fig.2). Other sieve shapes are shown in Fig. 3 to 5 each in the diagram.
Mit a ist ein wellenförmig gestaltetes Sieb bezeichnet, das auf den ansteigenden Flächen b der Wellenberge c Rundlochungen d für die kugeligen Unkrautsamen aufweist. Der Lauf des Siebgutes ist durch Pfeile gekennzeichnet.With a wave-shaped sieve is referred to, which is on the rising surfaces b of the wave crests c round holes d for the spherical weed seeds having. The flow of the material to be screened is indicated by arrows.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP10187A DE812740C (en) | 1948-10-02 | 1948-10-02 | Sieve for sorting out, in particular, spherical weed seeds from grain |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP10187A DE812740C (en) | 1948-10-02 | 1948-10-02 | Sieve for sorting out, in particular, spherical weed seeds from grain |
Publications (1)
Publication Number | Publication Date |
---|---|
DE812740C true DE812740C (en) | 1951-09-03 |
Family
ID=7362741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP10187A Expired DE812740C (en) | 1948-10-02 | 1948-10-02 | Sieve for sorting out, in particular, spherical weed seeds from grain |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE812740C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2827169A (en) * | 1954-12-07 | 1958-03-18 | Internat Pulp Products Inc | Screen plate |
US4758333A (en) * | 1987-03-23 | 1988-07-19 | General Electric Company | Sieve |
FR2626202A1 (en) * | 1988-01-22 | 1989-07-28 | Maltete Gerard | Table for sorting material from the grape harvest |
WO1997003765A1 (en) * | 1995-07-20 | 1997-02-06 | Tuboscope Vetco International Inc. | Screen for use in vibratory shaker device |
-
1948
- 1948-10-02 DE DEP10187A patent/DE812740C/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2827169A (en) * | 1954-12-07 | 1958-03-18 | Internat Pulp Products Inc | Screen plate |
US4758333A (en) * | 1987-03-23 | 1988-07-19 | General Electric Company | Sieve |
EP0283769A2 (en) * | 1987-03-23 | 1988-09-28 | General Electric Company | Sieve |
EP0283769A3 (en) * | 1987-03-23 | 1989-06-07 | General Electric Company | Sieve |
FR2626202A1 (en) * | 1988-01-22 | 1989-07-28 | Maltete Gerard | Table for sorting material from the grape harvest |
WO1997003765A1 (en) * | 1995-07-20 | 1997-02-06 | Tuboscope Vetco International Inc. | Screen for use in vibratory shaker device |
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