DK157979B - PROCEDURE AND APPARATUS FOR AIMING - Google Patents
PROCEDURE AND APPARATUS FOR AIMING Download PDFInfo
- Publication number
- DK157979B DK157979B DK152283A DK152283A DK157979B DK 157979 B DK157979 B DK 157979B DK 152283 A DK152283 A DK 152283A DK 152283 A DK152283 A DK 152283A DK 157979 B DK157979 B DK 157979B
- Authority
- DK
- Denmark
- Prior art keywords
- sieve
- sieving
- brush roll
- screening
- during
- Prior art date
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
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/522—Cleaning with brushes or scrapers with brushes
- B07B1/524—Cleaning with brushes or scrapers with brushes the brushes being rotating
-
- 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
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Description
! DK 157979 B! DK 157979 B
Denne opfindelse vedrører en sigtningsfremgangsmåde beregnet til behandling af materialearter, som er svære at sig-5 te, og ved hvilke en komponent af materialet har tilbøj -lighed til at hænge fast på sigtens overflade, som for eksempel separering af solsikkefrø fra de medfølgende øvrige materialer fra blomsten, ved hvilken fremgangsmåde der anvendes en mod sigten placeret, omkring sin egen akse rote-10 rende børstevalse, med hvilken sigten renses under sigtningen.This invention relates to a sieving method intended to treat hard-to-sieve material species in which a component of the material tends to adhere to the sieve surface, such as separating sunflower seeds from the accompanying other materials. from the flower, by which method a sieve placed rotates about its own axis rotating brush roll with which the sieve is cleaned during sieving.
Ved tidligere kendte sigtningsfremgangsmåder frembringer man sigtning ved vibrering af sigten, som sætter materia-15 let på sigtens overflade i bevægelse, eller ved anvendelse af en tromlesigte ved at man roterer sigten omkring sin egen akse. En forudsætning for vellykket sigtning er i dette tilfælde, at komponenterne i materialet, som sigtes, ikke hænger fast ved sigtens overflade og heller ikke ved 20 hinanden. Såfremt en sådan tendens til vedhængning fremkommer, er sigtning på sædvanlig måde med anvendelse af vibrering eller rotation af en tromlesigte ikke mulig.In prior art sieving methods, sieving is produced by vibrating the sieve which sets the material on the sieve's surface in motion, or by using a drum sieve by rotating the sieve around its own axis. A prerequisite for successful sieving is in this case that the components of the material being sieved do not adhere to the surface of the sieve nor to each other. If such a tendency for adherence appears, screening in the usual manner using vibration or rotation of a drum screen is not possible.
Man er stødt på dette vedhængningsproblem ved høst af sol-25 sikkefrø ifølge den fremgangsmåde, som er angivet i den finske patentansøgning nr. 812221. Ved denne fremgangsmåde afskæres blomsterhovederne med en skæremaskine, således at frøene bliver skåret af fra stilken under blomsterhovedet. Separeringen er imidlertid i praksis ikke fuldstændig, i-30 det der med blandt frøene kommer blomsterstilkerester og andet blomstermateriale, som skal adskilles fra frøene ved sigtning. Ved at fremgangsmåden gør det muligt at høste hovederne i fugtig tilstand, forårsager fugten i blomsterresterne og lignende blomstermateriale det ovennævnte ved-This attachment problem has been encountered in harvesting sunflower seeds according to the method set out in Finnish Patent Application No. 812221. In this method, the flower heads are cut with a cutting machine so that the seeds are cut off from the stalk under the flower head. In practice, however, the separation is not complete, as among the seeds are flower stalk residues and other flower material which must be separated from the seeds by sieving. By allowing the heads to be harvested in a moist state, the moisture in the flower residues and similar flower material causes the above mentioned
2 DK 157979 B2 DK 157979 B
hængningsproblem. Sigtningen lykkes derfor ikke med de sædvanlige sigtningsmetoder, som baserer sig på vibrering eller rotering af sigten.hanging problem. The sieving therefore does not succeed with the usual sieving methods which are based on vibration or rotation of the sieve.
5 Formålet med denne opfindelse er at frembringe en sigtningsfremgangsmåde, hvorved vedhængning af materialet, som sigtes, og deraf følgende tilstopning af sigten ikke forekommer. Fremgangsmåden ifølge opfindelsen kendetegnes ved, at ved sigtningen anvendes en mod sigtens overflade anlig-10 gende børstevalse, således at børstevalsen roteres omkring sin egen akse, og samtidig forskydes sigtens overflade og børstevalsen i forhold til hinanden, hvorved børstevalsen sætter materialet, som skal sigtes, i bevægelse, og ved siden af løsner materialet, som har sat sig fast i over-15 fladen, således at sigten forbliver gennemtrængelig.The object of this invention is to provide a sieving method whereby adhesion of the material being sieved and consequent clogging of the sieve does not occur. The method according to the invention is characterized in that the sieve uses a brush roller adjacent to the sieve surface, so that the brush roller is rotated about its own axis, and at the same time the surface of the sieve and the brush roller are displaced relative to each other, whereby the brush roller sets the material to be sieved. in motion, and next to it loosens the material which has become stuck to the surface so that the screen remains permeable.
Den i forhold til sigtens overflade bevægelige børstevalse har som sin primære opgave i fremgangsmåden ifølge opfindelsen at renholde sigtens overflade, så sigtning af mate-20 rialearter, der er svære at sigte, overhovedet bliver mulig. Derudover tjener børstevalsen som et organ, som sætter materialet, der sigtes, i en bevægelse, som frembringer sigtningen, hvorved for eksempel vibrering af sigten bliver unødvendig.The brush roll movable in relation to the screen has as its primary task in the method according to the invention to clean the screen surface, so that screening of material species which are difficult to aim becomes at all possible. In addition, the brush roll serves as a means which sets the material being screened into a motion which produces the screen, thereby, for example, vibrating the screen becoming unnecessary.
2525
Opfindelsen anvendes med fordel ved sigtning, som sker med en roterende tromlesigte. Dette kan udføres ved, at børstevalsen placeres imod sigtens indre overflade og roteres omkring sin egen akse i modsat retning i forhold til sig-30 tens rotationsretning. Børstevalsens forskydning i forhold til sigtens overflade baserer sig så på sigtens rotationsbevægelse, fordi valsen ud over sin egen rotering kan være stationær.The invention is advantageously used in screening which is done with a rotating drum screen. This can be accomplished by placing the brush roll against the inner surface of the screen and rotating about its own axis in the opposite direction to the direction of rotation of the screen. The displacement of the brush roll relative to the surface of the screen then relies on the rotational movement of the screen because the roller, in addition to its own rotation, can be stationary.
3 DK 157979 B3 DK 157979 B
Ved anvendelse af en tromlesigte sker indføringen på sig-teoverfladen af materialet, som skal sigtes, i reglen gennem sigtens ene ende. Derved er det fordelagtigt, hvis materialet, der skal sigtes, forskyder sig under sigtningen 5 i retning mod sigtens modsatte ende, så de tilbageblivende sigtningsrester undviger gennem denne ende. Det bliver muligt at frembringe denne forskydning af materialet ved, at man forsyner enten tromlesigtens inderflade eller børstevalsen med et skruegevind, som forskyder materialet, som 10 sigtes, i sigtens aksialretning. Den særlige fordel ved anvendelse af et skruegevind er, at den tid, med hvilken det materiale, som skal sigtes, bliver forsinket, kan styres ved hjælp af sigtens eller børstevalsens omdrejningshastighed. Endvidere kan sigten og børstevalsen anbringes 15 vandret, hvorved der ikke kræves hydraulik, som skråtstil-ler og afbalancerer dem.As a rule, when using a drum screen, the insertion on the sieve surface of the material to be screened occurs through one end of the screen. Thus, it is advantageous if the material to be screened shifts during the screen 5 towards the opposite end of the screen so that the remaining screen remnants avoid through this end. It becomes possible to produce this displacement of the material by providing either the inner surface of the drum screen or the brush roll with a screw thread which displaces the material which is sieved in the axial direction of the sieve. The particular advantage of using a screw thread is that the time by which the material to be screened is delayed can be controlled by the speed of the screen or brush roll. Furthermore, the sieve and brush roller can be placed horizontally, requiring no hydraulics which tilt and balance them.
Et yderligere formål med opfindelsen er et sigtningsapparat til udøvelse af den foran angivne sigtningsfremgangs-20 måde. Dette apparat kendetegnes ved, at det omfatter foruden sigten en mod sigtens overflade anbragt børstevalse, som kan roteres omkring sin egen akse, og at sigtens overflade og børstevalsen er indrettet til at kunne bevæges i forhold til hinanden, hvorved det materiale, der skal sig-25 tes, med børstevalsens hjælp kan sættes i bevægelse, og det materiale, som er blevet hængende ved sigtens overflade, samtidig kan løsnes, så sigten stadig holdes gennem-trængelig.A further object of the invention is a sieving apparatus for practicing the aforementioned sieving method. This apparatus is characterized in that it comprises, in addition to the screen, a brush roll arranged on the screen surface, which can be rotated about its own axis, and that the screen surface and the brush roll are arranged to be movable relative to each other, whereby the material to be screened. 25, with the aid of the brush roller can be set in motion and the material which has been suspended at the surface of the screen can be released simultaneously, so that the screen is still permeable.
30 Opfindelsen beskrives mere indgående i det følgende ved hjælp af et eksempel, med henvisning til medfølgende tegning , hvori:The invention will now be described in more detail by way of example with reference to the accompanying drawings, in which:
Fig. 1 viser en sigtningsproces ifølge opfindelsen vedFIG. 1 shows a screening process according to the invention at
4 DK 157979 B4 DK 157979 B
hjælp af en børstevalse og en roterende tromlesigte, og fig. 2 viser sigtningsprocessen ifølge fig. 1, vist i 5 tværsnit langs linien II-II i fig. 1.by means of a brush roller and a rotating drum screen, and fig. 2 shows the sieving process of FIG. 1, shown in cross section along line II-II of FIG. First
På tegningen er der vist en udformning af opfindelsen, hvor der som sigte er benyttet en vandret tromlesigte 2, som roterer omkring sin egen akse 1. Mod tromlesigtens 2 10 indre overflade er der monteret en børstevalse 3, som roterer omkring sin egen akse 4, men som ellers er stationær. Materialet 5, som skal sigtes, og som ligger på sigtens 2 indre overflade, er en blanding, hvori den ene eller anden bestanddel er tilbøjelig til at hænge ved sig-15 tens overflade og tilstoppe sigtens åbninger.In the drawing, there is shown an embodiment of the invention, in which a horizontal drum sieve 2 is used which rotates about its own axis 1. A brush roller 3 rotating about its own axis 4 is mounted against the inner surface of the drum sieve 2 10. but which is otherwise stationary. The material 5 to be screened and located on the inner surface of the screen 2 is a mixture in which one or other component tends to adhere to the screen surface and clog the screen openings.
Sigtningsprocessen vist på tegningen er baseret på tromlesigtens 2 og børstevalsens 3 modsatte roterende bevægelser. Børstevalsens 3 primære opgave er at forhindre ved-20 hængning af materialet 5, som sigtes, og vedvarende at holde sigten gennemtrængelig. Samtidig bidrager børstevalsen 3 til at bringe materialet 5, som sigtes, i bevægelse i forhold til sigtens overflade, som det kræves ved sigtning.The sieving process shown in the drawing is based on the opposite rotating movements of the drum screen 2 and the brush roll 3. The primary task of the brush roll 3 is to prevent adherence to the material 5 being screened and to keep the screen permeable. At the same time, the brush roll 3 contributes to moving the material 5 which is sieved relative to the surface of the sieve as required by sieving.
2525
Materialet, som skal sigtes, føres hen på sigtens 2 overflade gennem den ende af sigten, som er vist ved pilen 6 i fig. 1. Børstevalsens 3 børstehår er anbragt i form af en spiral 7, som under sigtningsprocessen forårsager en aksi-30 al forskydning af materialet 5, som skal sigtes, hen mod den modsatte ende af sigten. Under sigten 2 er der anbragt en rende 8, på hvilken de bestanddele 9, som er passeret gennem sigten, falder ned, og sigtningsresterne forlader sigtens overflade som vist ved pilen 10 i fig. 1.The material to be sieved is passed on the surface of the sieve 2 through the end of the sieve shown by arrow 6 in FIG. 1. The bristles of the brush roll 3 are arranged in the form of a coil 7 which, during the sieving process, causes an axial displacement of the material 5 to be sieved towards the opposite end of the sieve. Under the sieve 2 a gutter 8 is placed on which the components 9 passed through the sieve fall down and the sieve residues leave the sieve surface as shown by arrow 10 in fig. First
5 DK 157979 B5 DK 157979 B
Det er en alternativ mulighed at tilvejebringe den aksiale bevægelse af materialet 5, som skal sigtes, fra sigtens ene ende til den anden, også ved hjælp af et skrueformet 5 gevind anbragt på sigtens 2 indre overflade. Fordelen ved et skrueformet gevind, for eksempel sammenlignet med at skråtstille tromlesigten, er, at materialets forskydning vil finde sted uafhængigt af tromlens stilling, og derfor kan denne udførelse bruges til for eksempel høstmaskiner, 10 som skal køre over ujævnt terræn med variable hældningsgrader .It is an alternative option to provide the axial movement of the material 5 to be sieved, from one end of the sieve to another, also by means of a helical 5 thread located on the inner surface of the sieve 2. The advantage of a helical thread, for example, as opposed to tilting the drum sieve, is that the material displacement will take place independently of the drum position, and therefore this embodiment can be used, for example, for harvesting machines 10 which must run over uneven terrain with variable gradients.
Ifølge opfindelsen kan det materiale 5, som sigtes, være for eksempel en blanding af solsikkefrø og ledsagende 15 blomsterbestanddele, som følger med i forbindelse med ind-høstning af solsikkefrø. Bestanddelene 9, som sigtes gennem sigten 2 monteret på høstmaskinen, vil altså bestå af solsikkefrøene, og de øvrige blomsterbestanddele, som findes i blandingen, bliver liggende på sigtens overflade.According to the invention, the material 5 which is screened may be, for example, a mixture of sunflower seeds and accompanying flower components which are included in the harvest of sunflower seeds. The components 9, which are sifted through the sieve 2 mounted on the harvesting machine, will thus consist of the sunflower seeds and the other flower components found in the mixture will lie on the surface of the sieve.
20 Med sit rigelige indhold af fugtighed har disse blomsterbestanddele en tilbøjelighed til at hænge fast ved sigtens overflade, men takket være den bevægelige børstevalses funktion med at rengøre sigtens overflade kan der ikke opstå nogen tilstopning af sigten.20 With its abundant moisture content, these floral components tend to adhere to the sieve surface, but thanks to the function of the moving brush roller to clean the sieve surface, no sealing of the sieve can occur.
2525
Folk, der er kendt med teknikken, vil forstå, at forskellige udførelser af opfindelsen ikke er begrænset til de viste eksempler, men at de kan variere inden for rammerne for de efterfølgende patentkrav.Those familiar with the art will appreciate that various embodiments of the invention are not limited to the examples shown, but may vary within the scope of the appended claims.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI821229 | 1982-04-07 | ||
FI821229A FI71239C (en) | 1982-04-07 | 1982-04-07 | SAOLLNINGSFOERFARANDE OCH -ANORDNING |
Publications (4)
Publication Number | Publication Date |
---|---|
DK152283D0 DK152283D0 (en) | 1983-04-06 |
DK152283A DK152283A (en) | 1983-10-08 |
DK157979B true DK157979B (en) | 1990-03-12 |
DK157979C DK157979C (en) | 1990-08-27 |
Family
ID=8515326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK152283A DK157979C (en) | 1982-04-07 | 1983-04-06 | PROCEDURE AND APPARATUS FOR AIMING |
Country Status (9)
Country | Link |
---|---|
CA (1) | CA1211079A (en) |
DE (1) | DE3312365A1 (en) |
DK (1) | DK157979C (en) |
FI (1) | FI71239C (en) |
FR (1) | FR2524825B1 (en) |
GB (1) | GB2118071B (en) |
IT (1) | IT1164648B (en) |
SE (1) | SE455051B (en) |
ZA (1) | ZA832427B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3510597C2 (en) * | 1985-03-23 | 1995-11-30 | Kapuschinski Hannes J | Screening device |
HU198116B (en) * | 1986-11-06 | 1989-08-28 | Debreceni Mezoegazdasagi | Spraying machine particularly for area-proportional spreading spray liquor |
DE4302360A1 (en) * | 1993-01-28 | 1994-08-04 | Zimmermann Wolfgang | Mixing devices for sieves |
CN111871802B (en) * | 2020-07-29 | 2023-06-20 | 海南大学 | Continuous grading plant of soil deposit |
CN112691886A (en) * | 2020-11-25 | 2021-04-23 | 中科云健康(甘肃)有限公司 | Screening processingequipment behind chinese herbal medicine section |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE170212C (en) * | ||||
FR344985A (en) * | 1904-07-20 | 1904-11-18 | Carl Peter Pataut Grave | Flour blasting machines |
GB191021774A (en) * | 1910-09-20 | 1911-05-04 | Samuel Brassington Bamford | Improvements in and connected with the Machinery for Sifting Flour, Meal, Coal Dust, and other Materials. |
GB299148A (en) * | 1927-09-07 | 1928-10-25 | Arthur Percival Denby | Improvements in or relating to washing apparatus for coal, or the like |
GB518539A (en) * | 1938-08-25 | 1940-02-29 | Charles Herbert Griffiths | Improvements in and relating to sieves |
GB546618A (en) * | 1941-01-20 | 1942-07-22 | Cellulose Dev Corp Ltd | Improvements in or relating to apparatus for removing dust from loosely bound material such as chaff |
GB623742A (en) * | 1946-05-22 | 1949-05-23 | Justin Hurst | Improvements in or relating to gyratory sieves and filters |
FR1024762A (en) * | 1950-09-20 | 1953-04-07 | Teisset Rose Brault Ets | Bran brush comprising several brushing elements rubbing against a cylindrical screen |
GB700944A (en) * | 1951-07-26 | 1953-12-16 | Hans Joachim Rauhut | Improvements in screening and sifting devices for dry and wet loose material |
GB740126A (en) * | 1954-04-21 | 1955-11-09 | Hereward Joseph Betheridge Top | Improved apparatus for use in classifying or both classifying and drying loose material |
JPS5246572A (en) * | 1975-10-13 | 1977-04-13 | Hiroeki Kobayashi | Sieve device |
US4167975A (en) * | 1977-09-08 | 1979-09-18 | Fahrenholz Harley D | Beach cleaning apparatus |
-
1982
- 1982-04-07 FI FI821229A patent/FI71239C/en not_active IP Right Cessation
-
1983
- 1983-04-05 SE SE8301865A patent/SE455051B/en not_active IP Right Cessation
- 1983-04-06 GB GB08309330A patent/GB2118071B/en not_active Expired
- 1983-04-06 DE DE3312365A patent/DE3312365A1/en not_active Withdrawn
- 1983-04-06 DK DK152283A patent/DK157979C/en not_active IP Right Cessation
- 1983-04-07 CA CA000425395A patent/CA1211079A/en not_active Expired
- 1983-04-07 IT IT48066/83A patent/IT1164648B/en active
- 1983-04-07 FR FR8305691A patent/FR2524825B1/en not_active Expired
- 1983-04-08 ZA ZA832427A patent/ZA832427B/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2524825B1 (en) | 1987-08-14 |
FI71239B (en) | 1986-09-09 |
DK152283A (en) | 1983-10-08 |
ZA832427B (en) | 1984-01-25 |
FI71239C (en) | 1986-12-19 |
GB2118071B (en) | 1985-11-13 |
IT8348066A0 (en) | 1983-04-07 |
FI821229A0 (en) | 1982-04-07 |
CA1211079A (en) | 1986-09-09 |
GB2118071A (en) | 1983-10-26 |
DK152283D0 (en) | 1983-04-06 |
IT1164648B (en) | 1987-04-15 |
DE3312365A1 (en) | 1983-10-20 |
SE8301865D0 (en) | 1983-04-05 |
DK157979C (en) | 1990-08-27 |
SE8301865L (en) | 1983-10-08 |
FR2524825A1 (en) | 1983-10-14 |
FI821229L (en) | 1983-10-08 |
SE455051B (en) | 1988-06-20 |
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PBP | Patent lapsed |