DK157259B - DRYING DEVICE AND ANY SIGGING OF POWDER-SHAPED MATERIAL - Google Patents
DRYING DEVICE AND ANY SIGGING OF POWDER-SHAPED MATERIAL Download PDFInfo
- Publication number
- DK157259B DK157259B DK250183A DK250183A DK157259B DK 157259 B DK157259 B DK 157259B DK 250183 A DK250183 A DK 250183A DK 250183 A DK250183 A DK 250183A DK 157259 B DK157259 B DK 157259B
- Authority
- DK
- Denmark
- Prior art keywords
- chamber
- opening
- air
- outlet
- sheath
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 23
- 238000001035 drying Methods 0.000 title claims description 3
- 239000012254 powdered material Substances 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 6
- 241000446313 Lamella Species 0.000 description 1
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
- F26B3/092—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating
- F26B3/0926—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating by pneumatic means, e.g. spouted beds
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Description
DK 157259 BDK 157259 B
Opfindelsen angâr et apparat til tarring og eventuel sigtning af et pulverformet materiale ved hjælp af en under tryk stàen-de 1uftstram med en bæresigte til understatning af det materiale, der skal behandles, ved hjælp af hvilken sigte det i det 5 væsentlige rotationssymmetriske hus af apparatet er opdelt i et avre og et nedre kammer, med en i det nedre kammer mundende ti1 gangs 1edning for tilfarsel af luftstrammen sâvel som en i det evre kammer mundende afgangs 1edning til afgivelse af luftstrammen og for udtagning af tarret og i givet fald sigtet ma-10 ter i a 1e.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to an apparatus for tarring and possibly sieving a powdered material by means of a pressurized air strainer with a carrier screen to support the material to be treated, by means of which the substantially rotationally symmetrical housing of the apparatus is aimed. is divided into a lower chamber and a lower chamber, with an upper chamber opening in the lower chamber for dispensing the air tight as well as an outlet chamber opening in the outer chamber for dispensing the air tight and for removing the tar and, if applicable, 10 ter ia 1st.
Et apparat af denne art kendes fra Krischer og Kroll "tro-chungstechnik" bind 2, Springer-ver1ag. 1959, s. 281. Det har en sigtebund til anbringelse af det materiale, der skal taris res, hvilken sigtebund opdeler tarrehuset i to kamre.An apparatus of this kind is known from Krischer and Kroll "tro-chungstechnik" Volume 2, Springer-ver1ag. 1959, p. 281. It has a sieve bottom for the placement of the material to be tared, which sieve bottom divides the tarre house into two chambers.
Fra engelsk patentskrift nr. 1.391.033 kendes et pneumatisk ter reapparat, i hvis tarrekammer der i forskellige hajder til-vejebringes flere modsat rettede gasstramme. Derudover frem-20 bringes en gasstram, der gennemtrænger tarrekammeret i aksial retning, med hvilken gasstram det materiale, der skal tarres, blandes, sâledes at sidstnævnte beskriver en opadgâende bevæ-gelse bestâende af i hinanden overliggende skruelinier med vekslende retninger. Apparat har desuden en fin sigte, der 25 adskiller den nedre de! af det egentlige tarrekammer. Denne sigte forhindrer, at stcrre partikler af materialet falder ned i det nedre omrâde af huset.English patent specification No. 1,391,033 discloses a pneumatic tear reamer, in which a tear chamber is provided in different heights several oppositely directed gas tensions. In addition, a gas tightening penetrates the tear chamber in the axial direction with which the gas tightens the material to be tarred, such that the latter describes an upward movement consisting of mutually opposite helical lines. Apparatus also has a fine sieve that separates the lower ones! of the actual tear chamber. This sieve prevents larger particles of material from falling into the lower area of the housing.
Fra US patentskrift nr. 2.363.281 kendes et tarreapparat, ved 30 hvilket det materiale, der skal tarres, ligeledes blandes med en gasstram, der strammer ind i det nedre endeomrâde af tarre-kammeret tangentialt over en skruelinieformet stigende lede-flade og igen afsuges ved det avre endeomrâde over en ensartet ledeflade, der dog er modsat rettet. Gennem denne modstramsan-35 ordning af indfarings- og afsugningssiden opnâs, at der i det midterste omrâde af tarrekammeret dannes en ensformet aksial stramning med starre tværsnit.U.S. Pat. No. 2,363,281 discloses a tear apparatus wherein the material to be tear is also mixed with a gas tightening into the lower end region of the tear chamber tangentially over a helical rising guide surface and again suctioned. at the distal end region over a uniform guide surface, however directed in the opposite direction. Through this counter-tensioning arrangement of the inlet and suction side, it is achieved that in the middle region of the tear chamber a uniform-shaped axial tension with rigid cross-section is formed.
DK 157259 3 2DK 157259 3 2
Ogsà ved t0rreapparatet ifalge engelsk patentskrift nr. 981.750 bliver det materiale, der skal terres, blandet med den indstrammende gas. I en konisk husdel ti1vejebringes en skrue-formet stramning, der suges bort i det avre omrâde af huset. I 5 den koniske de! af kammeret holdes partiklerne af materialet i en 1igevægtstiIstand bestemt af stramnings-, centrifugal- og tyngdekraften. Pâ grund af hældningen af væggen samles materialet derved i strenge, der ophobes i det avre afsnit af den koniske husdel. Derfra falder partiklerne nedad og medfares pà 10 ny af den opadgâende gasstram. I dette "kredslab", der opre-tholdes længst muligt, tarres materialet og afgives til slut gennem det i den avre de! af tarrekammeret udmundende afsug-ni ngsrar.Also in the dryer according to English Patent No. 981,750, the material to be tered is mixed with the entrapping gas. In a conical housing part, a helical tension is provided which is sucked away in the outer area of the housing. In 5 the tapered ones! of the chamber, the particles of the material are held in a state of equilibrium determined by the tightening, centrifugal and gravity. Due to the slope of the wall, the material is thereby gathered into strings that accumulate in the lower section of the conical housing part. From there, the particles descend and are carried on again by the upward gas stream. In this "circuit", which is maintained for the longest time possible, the material is tarred and finally passed through it in the sacred de! of the tear chamber opening suction.
15 Formâlet med opfindelsen er at videreudvikle et tarreapparat af den indledningsvis nævnte art, sàledes at en effektiv tar-ring af det indfarte materiale og i givet fald en sigtning efter partikelstarrelse sâvel som en optagelse og udskillelse af sammenhængende tunge dele muliggares.The object of the invention is to further develop a tare apparatus of the kind mentioned above, so that an efficient taring of the ingested material and, where appropriate, a screening for particle starch as well as the absorption and separation of contiguous heavy parts is possible.
2020
Dette formâl er ifalge opfindelsen opnâet ved, at tilgangsled-ningen i det nedre kammer i det mindste udmunder i én tangen-tialt rettet dyse, sàledes at den tilfarte luft i dette nedre kammer pà i og for sig kendt màde cirkuleres med en centrifu-25 galbevægelse og udfarer en opadrettet skrueformet bevægelse, at trykluften med denne skrueformede bevægelse gennemtrænger bæresigten og derved i det mindste medtâger en de! af det af denne bârede materiale, at afgangsledningen er udstyret med en indadrettet àbning koaksialt i det avre kammer, og at der i 30 hvert fald er indrettet ên afbajningsvæg, der sammen med àb-ningen af afgangsledningen i det centrale omrâde af det avre kammer afgrænser en i hvert fald ti1nærmelsesvis ringformet udsugningss1ids, hvorigennem den skrueformede 1uftbevæge1 se meddeles en centripetal komponent, gennem hvilken det af luft-35 strammen medfarte materiale bringes til mundingsomrâdet af af-gangs1edn i ngen.This object is achieved according to the invention in that the supply line in the lower chamber opens at least in one tangentially directed nozzle, so that the supply air in this lower chamber is circulated in a manner known per se by a centrifuge. gallows movement and exits an upwardly helical movement that the compressed air with this helical movement permeates the carrier screen, thereby at least including one! of the said material, that the outlet conduit is provided with an inward opening coaxially in the outer chamber and that at least 30 a deflection wall is arranged which, together with the opening of the outlet conduit, delimits the central area of the outer chamber at least an approximately annular suction side, through which the helical air movement 1 is communicated a centripetal component through which the material carried by the air stream is brought into the orifice area of the outlet pipe.
DK 157259 BDK 157259 B
33
Apparat ifolge opfindelsen adskiller sig fra de kendte terre-apparater ved, at den i det nedre kammer frembragte tangen-t i a 1 e 1uftstrom gennemtranger den i huset indrettede s igte med en skrueformet bevægelse, hvirvler det pà bæresigten liggende 5 materiale med og medforer de pu 1verformede bestanddele. Den yderligere bevægelse af luftstrommen bestemmes ved, at den som udsugnings- eller udgangsrer fungerende afgangs 1edning, der udmunder i det 0vre kammer, med sin àbning i husets akseretning er rettet nedad, og denne àbning er sàledes kombineret med en 10 afbejningsvæg, at der opstâr en i hovedsagen ringformet udsug-ningsslids, hvorved den efter en skruelinie opadrettede luft-strem opnâr en centripetal komponent, gennem hvilken det af luftstrommen medforte materiale fares til mundingsomrâdet af udsugningsledningen, hvorfra det kan udtages. Den selekterede 15 partikelstorrelse afhænger af den relative position af den ringformede udsugningsslids.Apparatus according to the invention differs from the known terre apparatus in that the pliers produced in the lower chamber penetrate the air flow in the housing arranged in the housing with a helical movement, and swirl the material lying on the carrier screen. pu deformed constituents. The further movement of the air stream is determined by the outlet pipe acting as a suction or exit pipe leading into the upper chamber with its opening in the axial direction of the housing being directed downwards, and this opening is combined with a finishing wall to produce a generally annular suction slit, whereby the upwardly directed air stream attains a centripetal component through which the material carried by the air stream is fed to the mouth area of the suction line from which it can be removed. The selected particle size depends on the relative position of the annular suction slit.
Underkravene angâr særligt hensigtsmæssige udformninger af ap-paratet.The subclaims refer to particularly suitable designs of the apparatus.
2020
Opfindelsen skal nærmere forklares i det folgende under hen-visning til tegningen, hvor fig. 1 viser et torreapparat ifolge opfindelsen set i snit, 25 fig. 2 en variant af det i fig. 1 viste apparat og fig. 3 og 4 de i fig. 1 og 2 viste apparater set i snit.The invention will be explained in more detail below with reference to the drawing, in which 1 is a sectional view of a dryer according to the invention; FIG. 2 shows a variant of the embodiment of FIG. 1 and FIG. 3 and 4 are those of FIG. 1 and 2 are sectional views.
30 Det i fig. 1 viste t0rreapparat A bestâr af et cylindrisk hus 2, der. er opdelt i to pneumatiske kamre B og C, hvilke kamre er adskilt af en bæresigte E, der understotter det materiale, der skal torres, og som indfores via en slidsk 4.30 The FIG. 1, the drying apparatus A consists of a cylindrical housing 2 which. are divided into two pneumatic chambers B and C which are separated by a carrier screen E which supports the material to be dried and which is inserted via a slit 4.
35 Det nedre kammer C har en konisk bund 6. Via en dyse 9 afgiver en ventilator 8 en luftstom til kammeret C, hvilken luftstrom er rettet tangentialt i forhold til indersiden af kammeret C.The lower chamber C has a conical bottom 6. Via a nozzle 9, a fan 8 delivers an air stream to the chamber C, which air flow is directed tangentially to the inside of the chamber C.
DK 157259 BDK 157259 B
44
Over bæresigten E roterer en horisontal arm 10 pà en aksel 12 drevet af et reduktionsgear 14. Armen 10 er udstyret med orga-ner sàsom skovlblade 16, der via en anordning 18 kan fjerne og afgive tungere partikler og den smelte, der bliver tilbage pà 5 overfladen af et fluidiseret bed, og andre organer sàsom rul-ler eller skrabere 20 til knusning af agglomereret materiale aflejret pâ overf1aden af sigten E.Above the carrier screen E, a horizontal arm 10 rotates on a shaft 12 driven by a reduction gear 14. The arm 10 is provided with organs such as vane blades 16 which, via a device 18, can remove and release heavier particles and the melt remaining on 5 the surface of a fluidized bed, and other means such as rollers or scrapers 20 for crushing agglomerated material deposited on the surface of the screen E.
Et sugeror 22 er anbragt pà aksen af det ovre kammer 8. En te-10 leskopisk bosning 24 er indrettet til at foretage en vertikal forskydning ved hjælp af en tandstang 26, der aktiveres via et drivgear, som drives uaefra af en motor 27 og stâr i forbin-delse med besningen 24.A suction tube 22 is arranged on the axis of the upper chamber 8. A telescopic bushing 24 is arranged to make a vertical displacement by means of a rack 26 actuated by a drive gear driven from above by a motor 27 and mounted in connection with the broom 24.
15 Besningen 24 er udstyret med en keglestubformet kappe 28, der pâ sin side stâr i forbindelse med en konisk afbojningsvæg 30, der er passende adskilt fra kappen 28 ved hjælp af justerbare elementer 32, gennem hvilke det er muligt at variere afstanden mellem kanterne af elementerne til afgrænsning af en ringfor-20 met udsugningss1ids.The bushing 24 is provided with a cone-shaped sheath 28 which in turn communicates with a tapered deflection wall 30 which is suitably separated from the sheath 28 by adjustable elements 32, through which it is possible to vary the distance between the edges of the elements. for defining an annular suction side.
Af gangsâbni ngen 22 er forbundet med en cyklon 52, hvis af-gangsàbm'ng stâr i forbindelse med et posefilter 54 til op-samling og seperation af det pu!verformede materiale i luft-25 strommen fra cyklonen 52. Cyklonen og posefilteret 54 kan an-vendes enten samtidigt eller hver for sig ait efter hvilket materiale der skal behandles.The outlet opening 22 is connected to a cyclone 52, the outlet opening of which is connected to a bag filter 54 for collecting and separating the powdered material in the air stream from the cyclone 52. The cyclone and bag filter 54 can is used either simultaneously or separately depending on the material to be treated.
I fig. 3 og 4 bestâr sigten E af et sæt koncentriske 1amel1er 30 a, b, der er formet pà samme mâde med en plan tragt 40 og er anbragt pâ en sâdan mâde, at den opad foldede kant 42 af hver af lamellerne a, b overlapper en nedad foldet kant 44 af en tilstodende lamel. Pâ denne mâde er det flydende bed af materiale understottet af sigten E, og den luft, der blæses ind i 35 kammeret C, passerer gennem revnerne mellem kanterne af lamellerne og samarbejder til at bibringe luftstremmen den on-skede rotationsbevægelse. Den centrale zone 50 af sigten E - seIn FIG. 3 and 4, the screen E consists of a set of concentric lamellas 30 a, b, formed in the same manner with a planar funnel 40 and arranged in such a way that the upwardly folded edge 42 of each of the slats a, b overlaps a downwardly folded edge 44 of an adjacent slat. In this way, the liquid bed of material is supported by the screen E, and the air blown into the chamber C passes through the cracks between the edges of the slats and cooperates to impart the desired rotational movement to the air stream. The central zone 50 of the screen E - see
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21689/82A IT1151577B (en) | 1982-06-03 | 1982-06-03 | PROCEDURE AND RELATED EQUIPMENT FOR DRYING POWDERED MATERIALS IN GENERAL |
| IT2168982 | 1982-06-03 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK250183D0 DK250183D0 (en) | 1983-06-02 |
| DK250183A DK250183A (en) | 1983-12-04 |
| DK157259B true DK157259B (en) | 1989-11-27 |
| DK157259C DK157259C (en) | 1990-04-30 |
Family
ID=11185425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK250183A DK157259C (en) | 1982-06-03 | 1983-06-02 | DRYING DEVICE AND ANY SIGGING OF POWDER-SHAPED MATERIAL |
Country Status (7)
| Country | Link |
|---|---|
| CH (1) | CH654904A5 (en) |
| DE (1) | DE3318313C2 (en) |
| DK (1) | DK157259C (en) |
| ES (1) | ES8404044A1 (en) |
| FR (1) | FR2528159B1 (en) |
| GB (1) | GB2121153A (en) |
| IT (1) | IT1151577B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59196726A (en) * | 1983-04-19 | 1984-11-08 | Okawara Mfg Co Ltd | Continuous fluidized layer type granulating apparatus |
| GB2177616B (en) * | 1985-07-09 | 1988-07-06 | Smidth & Co As F L | Gas suspension reactor |
| GB8530020D0 (en) * | 1985-12-05 | 1986-01-15 | British American Tobacco Co | Treatment of particulate materials |
| DE3613362A1 (en) * | 1986-04-19 | 1987-10-29 | Orth Gmbh H | FLIGHT LAYER DRYER |
| DK9891A (en) * | 1991-01-21 | 1992-09-15 | Techdania I S V Sven T Aaen Og | PROCEDURE FOR CONTINUOUS DISINTEGRATION AND / OR DRYING OF PASTA, SLAM, PRESSURE CAKE, FILTER CAKE OR LIKE, ISSUE FIBROSICAL MATERIALS AND APPARATUS FOR EXERCISING THE PROCEDURE |
| EP1956326B1 (en) | 2007-02-09 | 2010-04-14 | Braunschweigische Maschinenbauanstalt AG | Device for removing fluids and/or solids |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE544308A (en) * | ||||
| US236281A (en) * | 1881-01-04 | Trand | ||
| US2522704A (en) * | 1939-12-08 | 1950-09-19 | Laval Jacques Hjaimar De | Method and apparatus to treat material in form of pieces or powder with gases |
| GB981750A (en) * | 1962-02-03 | 1965-01-27 | Bayer Ag | Apparatus for drying particles carried in a stream of gas |
| DE1642917A1 (en) * | 1967-01-30 | 1971-05-19 | Ashizawa Iron Works Co Ltd | Process for drying, heating, cooling or the like of a substance in powder, granulate or similar form as well as a device suitable for carrying out such a process |
| BE701295A (en) * | 1967-07-12 | 1967-12-18 | ||
| CH508828A (en) * | 1970-07-08 | 1971-06-15 | Hirmann Georg | Method for closing bores in workpieces and plugs for carrying out the method |
| US3711962A (en) * | 1970-12-15 | 1973-01-23 | Okawara Mfg | Fluidized drying apparatus |
| GB1381505A (en) * | 1971-06-06 | 1975-01-22 | Struthers Scient International | Fluidized bed process and apparatus |
| FR2171667A5 (en) * | 1972-02-04 | 1973-09-21 | Mark Andre | |
| DD119304A1 (en) * | 1975-04-23 | 1976-04-12 | ||
| FR2317611A1 (en) * | 1975-07-09 | 1977-02-04 | Lejeune Bertrand | Drier-extractor for particulate material - comprising closed vessel enclosing perforated wall |
| DD136454A1 (en) * | 1978-05-16 | 1979-07-11 | Lothar Moerl | DEVICE FOR SOLVENT REMOVAL |
| US4395830A (en) * | 1980-09-12 | 1983-08-02 | Jetsonic Processes, Ltd. | Pulse combustion fluidizing dryer |
-
1982
- 1982-06-03 IT IT21689/82A patent/IT1151577B/en active
-
1983
- 1983-05-16 GB GB08313500A patent/GB2121153A/en not_active Withdrawn
- 1983-05-17 ES ES522466A patent/ES8404044A1/en not_active Expired
- 1983-05-19 DE DE3318313A patent/DE3318313C2/en not_active Expired
- 1983-05-25 FR FR8308613A patent/FR2528159B1/en not_active Expired
- 1983-06-01 CH CH3003/83A patent/CH654904A5/en not_active IP Right Cessation
- 1983-06-02 DK DK250183A patent/DK157259C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB8313500D0 (en) | 1983-06-22 |
| GB2121153A (en) | 1983-12-14 |
| DE3318313A1 (en) | 1983-12-08 |
| IT1151577B (en) | 1986-12-24 |
| DK250183A (en) | 1983-12-04 |
| IT8221689A0 (en) | 1982-06-03 |
| DK250183D0 (en) | 1983-06-02 |
| DK157259C (en) | 1990-04-30 |
| FR2528159B1 (en) | 1988-02-26 |
| FR2528159A1 (en) | 1983-12-09 |
| ES522466A0 (en) | 1984-05-01 |
| DE3318313C2 (en) | 1986-05-22 |
| CH654904A5 (en) | 1986-03-14 |
| ES8404044A1 (en) | 1984-05-01 |
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