DK169489B1 - Apparatus for drying and cooling solid particles - Google Patents
Apparatus for drying and cooling solid particles Download PDFInfo
- Publication number
- DK169489B1 DK169489B1 DK117282A DK117282A DK169489B1 DK 169489 B1 DK169489 B1 DK 169489B1 DK 117282 A DK117282 A DK 117282A DK 117282 A DK117282 A DK 117282A DK 169489 B1 DK169489 B1 DK 169489B1
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- DK
- Denmark
- Prior art keywords
- zones
- flow
- drying
- gas distribution
- inflow bottom
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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
- F26B3/0923—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 mechanical means, e.g. vibrated plate, stirrer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
DK 169489 B1 -1 -DK 169489 B1 -1 -
Opfindelsen angår et apparat til tørring og køling af kornede og krystallinske, til sammenklæbing tilbøjelige partikler af fast materiale i et hvirvel kammer med skovl snekke under tilførsel af tørremedier i forskellige zoner gennem indstrømningsbundsegmenter med forskelligt åb-5 ningsforhold, der er anbragt oven over indbyrdes adskilte gasfordelingskamre, samt et separationskammer over hvirvel kammeret med faststofindløb og gasudløbsstuds. Apparatet er navnlig anvendeligt til skånsom behandling af sukkerkrystaller.The invention relates to an apparatus for drying and cooling granular and crystalline solids-prone particles in a vortex chamber with vane screw during application of drying media in different zones through inflow bottom segments having different opening ratios spaced apart. gas distribution chambers, as well as a separation chamber over the vortex chamber with solid inlet and gas outlet nozzle. The apparatus is particularly useful for the gentle treatment of sugar crystals.
Af tekniske og økonomiske grunde må kornede eller krystallinske 10 partikler af fast materiale tørres til et minimalt fugtighedsindhold før lagring eller transport, uden at der i tørre- og kølefasen dannes klumper og sker ødelæggelse af partikelstrukturen. Kvaliteten af fx. sukkeret og den heldige tørring af dette afhænger i høj grad af tørre-apparatets art. Ideal ti Istanden opnås, hvis hver krystal omstrømmes af 15 tørremidlet. Denne tilstand forsøger man at nærme sig ved apparater til tørring og køling af partikler af fast materiale i hvirvellag.For technical and economic reasons, granular or crystalline particles of solid material must be dried to a minimum moisture content prior to storage or transport, without lumps forming and destruction of the particle structure during the drying and cooling phases. The quality of e.g. the sugar and the successful drying thereof depend to a large extent on the nature of the drying apparatus. Ideal The condition is obtained if each crystal is flooded by the desiccant. This condition is attempted to be approached by apparatus for drying and cooling solids particles in fluidized layers.
Der kendes anlæg og apparater, som består af to med hinanden kombinerede kamre, som ved bunden er opdelt i diffusorer, gennem hvilke der til afvanding blæses opvarmet luft ind i det første kammer og kold 20 luft i det andet kammer. Mellem kamrene over det gitter, gennem hvilket luft indblæses, er anbragt en indstillelig skillevæg til indstilling af sukkerlaget. Under ophvirvlingen kommer sukkeret fra tørrekammeret over skillevæggen ind i kølekammeret og derfra gennem indretninger til lageret. Når der føres komprimeret luft gennem gitteret og det derpå væren-25 de sukkerlag, opstår en pseudoflydende tilstand, ved hvilken der sker en intensiv varmetransmission, og fugtigheden fjernes og krystaloverfladen afkøles. Kornstrukturen og sammensætningen ændres ikke i forhold til andre tørresystemer. (Sacher.Prm.Moskav 37 (1963) 7 S. 498 - 502).There are known systems and apparatus which consist of two combined chambers, which at the bottom are divided into diffusers, through which, for dewatering, heated air is blown into the first chamber and cold air into the second chamber. Between the chambers above the grating through which air is blown is arranged an adjustable partition for adjusting the sugar layer. During swirling, the sugar from the drying chamber above the partition wall enters the cooling chamber and thence through devices to the storage. When compressed air is passed through the grating and the subsequent sugar layer, a pseudo-flowing state occurs, during which an intense heat transmission occurs and the moisture is removed and the crystal surface is cooled. The grain structure and composition do not change with other drying systems. (Sacher.Prm.Moskav 37 (1963) 7 pp. 498 - 502).
På grund af den ugunstige cirkulation af krystallerne i tørrerummet fo-30 røges den mekaniske beskadigelse, og der sker af og til sammenklæbning og fastbrænding af sukkeret. Ved de sædvanlige indtrædningsfugtigheder dannes et instabilt fluidiseringslag, som let kan føre til kortvarige overbelastninger eller endog til havarier. En yderligere ulempe er den stærke dannelse af sukkerstøv, der ligeledes har en skadelig indvirk-35 ning på fluidiseringens stabilitet.Due to the unfavorable circulation of the crystals in the drying room, mechanical damage is prevented and occasional sticking and burning of the sugar occurs. At the usual onset of humidity, an unstable fluidization layer is formed which can easily lead to short-term overloads or even to breakdowns. A further disadvantage is the strong formation of sugar dust which also has a detrimental effect on the stability of the fluidization.
- 2 - DK 169489 B1- 2 - DK 169489 B1
Der kendes endvidere apparater til tørring af kornede eller krystallinske partikler af fast materiale, navnlig til kortvarig, skånsom, termisk behandling under anvendelse af tørremidler og mekaniske røre-værker (DE-offentliggørelsesskrift 21 35 787 og DE-fremlæggelsesskrift 5 28 40 496). Det til tørring tilførte lag sættes ved hjælp af en røre- indretning i en blød bevægelse og tørres ved hjælp af et tørremedium, som fra bunden strømmer ind i partikel laget. Tørremediet har her kun til opgave at optage de faste partiklers fugtighed, men er ikke tilstrækkeligt til en pneumatisk ophvirvling, således at det er nødvendigt 10 at foretage en mekanisk omhvirvl ing ved hjælp af røreværket. Dermed er den mekaniske røreindretning nødvendig til stadig overfladeforøgelse og til opretholdelse af tørreprocessen. Fælles for alle kendte løsninger er, at der til de til tørring bestemte partikler af fast materiale i tørreindretningerne, der er udformet som tromle- og turbinetørrere, 15 flertrinstørrere, hvirvel lagsanlæg og rotationstørrere, tilføres tørremedier. Apparater kan opdeles i tørrekølere eller mekaniske røreværker og tørrere med røreværker. Trods positive elementer opfylder de to systemer ikke den opgave med lave anlægsomkostninger at tørre og køle krystallinske faste stoffer med vilkårlig partikelstørrelse til de til 20 silooplagring eller øjeblikkelig emballering nødvendige parametre.Apparatus are also known for drying granular or crystalline particles of solid material, especially for short-term, gentle, thermal treatment using desiccants and mechanical stirrers (DE disclosure no. 21 35 787 and DE disclosure no. 5 28 40 496). The layer applied for drying is set in a soft motion by means of a stirrer and dried by means of a drying medium which flows from the bottom into the particle layer. The drying medium is here only intended to absorb the moisture of the solid particles, but is not sufficient for a pneumatic swirling, so that it is necessary to perform a mechanical swirling by means of the stirrer. Thus, the mechanical stirrer is necessary for continuous surface augmentation and for maintaining the drying process. Common to all known solutions is that drying media is supplied to the solid particles for drying in the drying devices, which are formed as drum and turbine dryers, 15 multi-stage dryers, swirl layers and rotary dryers. Apparatus can be divided into dryers or mechanical stirrers and dryers with stirrers. Despite positive elements, the two systems do not fulfill the task of low construction costs to dry and cool crystalline solids of any particle size to the parameters required for 20 silo storage or immediate packaging.
Opfindelsen har til formål med ringe energiforbrug og lave anlægsomkostninger at udvinde partikler af fast materiale, hvis struktur ikke er forringet, og som tørres og afkøles til de til silooplagring eller emballering nødvendige parametre på en sådan måde, at det til tørring 25 bestemte faste materiale udviser et ensartet, konstant kornspektrum.The invention aims at low energy consumption and low construction costs to recover particles of solid material whose structure is not degraded and which are dried and cooled to the parameters required for silo storage or packaging in such a way that the solid material intended for drying exhibits a uniform, constant grain spectrum.
Opfindelsen er baseret på den opgave at tilvejebringe et apparat, som gør det muligt at tørre og køle kornede eller krystallinske, i fugtig tilstand til sammenklæbning tilbøjelige faste stoffer i et hvirvellagsapparat. Apparatet skal være således indrettet, at de ved ind-30 føringsstedet for de faste stoffer optrædende agglomerater ødelægges.The invention is based on the object of providing an apparatus which allows dry and cool grained or crystalline, moisture-prone solids to be adhered to an eddy layer apparatus. The apparatus must be so arranged that the agglomerates occurring at the point of introduction of the solids are destroyed.
Ifølge opfindelsen foretages tørringen og kølingen af de faste stoffer i et kombineret pneumatisk, mekanisk arbejdende hvirvel lagsapparat. Apparatet er således opbygget, at indstrømningsbunden i zonerne er plant udformede hen til faststofudløbet og hælder fra strømnings-35 kanten til strømningsmidten under en bestemt vinkel, hvorhos området - 3 - DK 169489 B1 oven over indstrømningsbunden ved hjælp af en indtil zonerne anbragt skillevæg er opdelt i et fremløb, et ombøjningsløb og et tilbageløb, og hvorhos en eller flere af de til disse zoner hørende gasfordelingskamre for fremløbet er opdelt i indbyrdes adskilte sektioner, som i disse zo-5 ner skiftevis er forbundet med en gastilførselsstuds og det tilstødende gasfordel ingskammer for tilbageløbet, og skovl snekken er anbragt i zonen, hvor der mellem yderkanterne af skovlen og indstrømningsbunden er en mindre afstand end mellem yderkanterne og strømningskanterne. Oven over gasfordelerkamrene er anbragt en tilstrømningsbund, som i lighed 10 med gasfordelerkamrene er opdelt i zoner, og til hvilken er tilsluttet et hvirvel kammer. Hvirvel kammeret går med et overgangsstykke med skrå sidevægge over i et rektangulært separationskammer, i hvilket der ved den ene endevæg og/eller en tilgrænsende sidevæg indmunder et passende indløb for fast materiale. Opadtil er separationskammeret begrænset med 15 et dæksel, i hvilket der er anbragt udadtil udmundende gasafgangsstud-se, hvis fri tværsnit kan reguleres ved hjælp af spjæld. Ovenover indstrømningsbunden er apparatet indtil i højde med separationskammerets dæksel ved hjælp af en dobbelt skillevæg, som strækker sig parallelt med sidevæggene fra endevæggen med indløbet og udløbet for fast mate-20 riale til begyndelsen af den sidste zone foran den overfor liggende endevæg, og som kan være anbragt i midten, opdelt i et fremløb, et omløb og et tilbageløb.According to the invention, the drying and cooling of the solids is carried out in a combined pneumatic, mechanically operating vortex layer apparatus. The apparatus is constructed such that the inflow bottom of the zones is flat formed to the solid outlet and inclines from the flow edge to the flow center at a certain angle, the area above which the inflow bottom is divided by means of a partition located until the zones. in a flow, a bend flow and a return flow, and wherein one or more of the gas distribution chambers belonging to these zones are divided into mutually spaced sections, which in these zones are alternately connected to a gas supply plug and the adjacent gas distribution chamber for the backflow, and the vane screw is placed in the zone where there is a smaller distance between the outer edges of the vane and the inflow bottom than between the outer edges and the flow edges. Above the gas distributor chambers is an inlet bottom which, like 10 gas distributor chambers, is divided into zones and to which is connected a vortex chamber. The vortex chamber, with an inclined side wall transition, enters a rectangular separation chamber in which, at one end wall and / or an adjacent side wall, a suitable inlet for solid material is provided. Upwardly, the separation chamber is limited by a cover in which is located the outwardly opening gas outlet nozzle, the free cross-section of which can be controlled by means of dampers. Above the inflow floor, the apparatus is up to the level of the separation chamber cover by means of a double partition extending parallel to the side walls from the end wall with the inlet and outlet of solid material to the beginning of the last zone in front of the opposite end wall, which can be placed in the middle, divided into a flow, a circulation and a backflow.
Indstrømningsbunden har i de enkelte zoner et indefra og udad tiltagende åbningsforhold ζΐ > ζΙΙ, hvorhos hjørneområderne af ombøjnings-25 løbet har et åbningsforhold, som ligger over værdierne for randområderne i de øvrige zoner. Navnlig den zone af apparatet, i hvilket det faste materiale indføres, og eventuelt også efterfølgende zoner har en indstrømningsbund, som hælder under en bestemt vinkel fra strømningsrandene til strømningsmidten. Over de i strømningsmidten sammenstøden-30 de, skrå segmenter af indstrømningsbunden er anbragt en roterende skovlsnekke, som har en mod retningen af faststoftransporten modsat rettet transporteffekt. Skovl snekken bliver kun virksom i en del af zonerne og tjener samtidig til ødelæggelse af ikke fluidiseringsdygtige, større faststofkonglomerater. Skovl snekkens akse er anbragt således pa-35 rail elt med sidevæggene, at der mellem yderkanterne af skovlene og ind- DK 169489 Bl - 4 - strømningsbunden opstår en afstand på 2 mm. De efterfølgende zoner indtil faststofudløbet har en indstrømningsbund, som fortrinsvis er udformet plant, hvorhos et eller flere af de til disse zoner hørende gasfor-delerkamre i fremløbet er opdelt i indbyrdes adskilte sektioner, som 5 afvekslende i disse zoner er forbundet med en gastilførselsstuds eller med det tilgrænsende gasfordel ingskammer i tilbageløbet, således at der skiftevis kan ledes forskelligt tørringsmiddel in i disse zoner. Appa-ratets endevæg har ved tilbageløbet ovenover indstrømningsbunden indtil begyndelsen af overgangsstykket en ved hjælp af en dæmning i størrelsen 10 variabel faststofudløbsåbning. Skillepladen har ved den sidste zone i tilbageløbet til den tilgrænsende zone i fremløbet på højde med hvirvelkammeret én eller flere aflukkelige åbninger, forbindelse med hvilke der er anbragt indstrømningsbundsegmenter, som har en i retning mod skillevægsåbninger rettet transporteffekt. Ved hjælp af gastilførslen 15 af tørringsluften til hvirvel kammeret og ved anbringelsen af skovlsnekken opnås det, at der ved tørringen og kølingen af materialet undgås en klumpdannelse, og der opstår et slutprodukt, som har et ensartet kornspektrum.The inflow bottom has in each zone an inside and outward increasing opening ratio ζΐ> ζΙΙ, where the corner areas of the bend run have an opening ratio which is above the values of the edge areas in the other zones. In particular, the zone of the apparatus into which the solid material is introduced, and optionally also subsequent zones, has an inflow bottom which inclines at a certain angle from the flow edges to the flow center. Above the inclined segments of the flow center, a rotating vane screw is arranged which has a transport effect opposite to the direction of the solid transport. The vane worm only becomes effective in part of the zones and at the same time destroys non-fluidized, larger solid conglomerates. The shovel shaft's axis is arranged on the rail with the sidewalls so that a distance of 2 mm is formed between the outer edges of the vanes and the flow bottom. The subsequent zones until the solid outlet has an inlet bottom, which is preferably formed in which one or more of the gas distribution chambers belonging to these zones is divided into mutually spaced sections which alternately in these zones are connected to a gas supply nozzle or with the adjacent gas distribution chamber in the reflux so that different desiccants can be alternately fed into these zones. At the reflux above the inflow bottom, the end wall of the apparatus has a variable solids outlet opening by means of a dam of size 10, at the beginning of the transition piece. At the last zone in the return to the adjacent zone in the flow at the level of the vortex chamber, the partition plate has one or more closable apertures, with connection to which inflow bottom segments are provided which have a transport effect directed towards the partition openings. By means of the gas supply 15 of the drying air to the vortex chamber and by the application of the vane screw, it is obtained that in the drying and cooling of the material a lump formation is avoided and a final product having a uniform grain spectrum is obtained.
Opfindelsen er nærmere forklaret i det følgende under henvisning 20 til tegningen, på hvilken fig. 1 viser et hvirvellagsapparat set forfra, fig. 2 et snit af gasfordelerkamrene efter linien A-A i fig. 1, fig. 3 et snit af hvirvel kamrene efter linien B-B i fig. 1, 25 fig. 4 hvirvellagsapparatet set fraoven, og fig. 5 en snitgengivelse af en skovl snekke i et hvirvel kammer efter linien D-D i fig. 1.The invention is further explained in the following with reference to the drawing, in which 1 is a front elevational view of a vortex apparatus; FIG. 2 is a sectional view of the gas distribution chambers along line A-A of FIG. 1, FIG. 3 is a sectional view of the vortex chambers along line B-B of FIG. 1, FIG. 4 is a top view of the fluidized bed apparatus; and FIG. 5 is a sectional view of a vane worm in a vortex chamber along line D-D of FIG. First
Det til tørring og køling bestemte faste materiale kommer gennem 30 et fast stofindløb 13 ind i en af en endevæg, en sidevæg og en dobbelt-vægget skillevæg 15 begrænset første zone 20 i et hvirvel kammer 8. Hvirvel kammeret 8 går med et overgangsstykke 9 over i et separations-kammer 10. Det gennem en gastilførselsstuds 12 indtrædende tørremedium i form af en gas E fordeles i gasfordel erkamrene 1-6, passerer ind-35 strømningsbunden 7 og danner sammen med det indførte faste materiale GThe solid material intended for drying and cooling enters through a solid inlet 13 into one of an end wall, a side wall and a double-wall partition 15 restricted to first zone 20 in a vortex chamber 8. The vortex chamber 8 extends with a transition piece 9 in a separation chamber 10. The drying medium entering through a gas supply 12 in the form of a gas E is distributed in the gas distribution chamber 1 to 6, passes the inflow bottom 7 and together with the introduced solid material G
- 5 - DK 169489 B1 et hvirvellag. Fordelingen af tørremediet sker i zonerne 20 - 25 i gasfordelingskamrene 1-6. Eventuelt dannede agglomerater ødelægges ved hjælp af de skråtstillede indstrømningsbundsegmenter 26 og også på grund af det af det variable åbningsforhold ζΐ > ζΙΙ i indstrømnings-5 bunden 7 resulterende strømningsprofil mod strømningsmidten, og transporteres dermed ind i området for den roterende skovl snekke 16. Med skovl snekken 16 bevæges de ufuldstændigt ødelagte og ikke-fluidise-ringsdygtige faststofagglomerater mod det faste materiales transportretning og ødelægges dermed samtidig. Det øvrige faste materiale trans-10 porteres på grund af strømningsprofilet, den pågældende spjældindstilling i gasudløbsstudsen 11, fremløbet 17, ombøjningsstrømningen 18 og tilbageløbet 19 til faststofudløbet 14. Foran faststofudløbet 14 er anbragt et vandret indstrømningsbundsegment 27. Mellem fremløbet 17 og tilbageløbet 19 er den dobbeltvæggede skillevæg 15 med én eller flere 15 åbninger således anbragt, at en del af det kølede faste materiale kan føres tilbage i den første zone 20 af fremløbet 17, medens den øvrige del af det tørrede og kølede faste materiale H bortledes til lagring eller til transport.- 5 - DK 169489 B1 a vertebral layer. The drying medium is distributed in zones 20-25 in the gas distribution chambers 1-6. Any resulting agglomerates are destroyed by the inclined inflow bottom segments 26 and also due to the variable opening ratio ζΐ> ζΙΙ in the inflow bottom 7 resulting flow profile against the flow center, and thus transported into the region of the rotary vane worm 16. With vane the worm 16, the incompletely broken and non-fluidizable solid agglomerates are moved towards the transport direction of the solid and are thereby destroyed simultaneously. The other solid material is transported due to the flow profile, the relevant damper setting in the gas outlet nozzle 11, the flow 17, the bend flow 18 and the backflow 19 to the solid outlet 14. In front of the solid outlet 14 is a horizontal flow bottom segment 27. Between the flow 17 and the backflow double-walled partition 15 with one or more 15 openings arranged so that part of the cooled solid material can be returned to the first zone 20 of the flow 17, while the other part of the dried and cooled solid material H is discharged for storage or for transport. .
Ved gasfordelerkammeret 2 er der forbindelse til det overfor lig-20 gende gasfordelerkammer 5, således at der skiftevis kan ledes forskellig tørringsluft ind i zonen over gasfordel erkammeret 2.At the gas distributor chamber 2, there is a connection to the adjacent gas distributor chamber 5, so that different drying air can be alternately fed into the zone above the gas distribution chamber 2.
2525
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD22943081A DD156270A1 (en) | 1981-04-23 | 1981-04-23 | DEVICE FOR DRYING AND COOLING SOLIDS PARTS |
| DD22943081 | 1981-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK117282A DK117282A (en) | 1982-10-24 |
| DK169489B1 true DK169489B1 (en) | 1994-11-07 |
Family
ID=5530505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK117282A DK169489B1 (en) | 1981-04-23 | 1982-03-17 | Apparatus for drying and cooling solid particles |
Country Status (5)
| Country | Link |
|---|---|
| BG (1) | BG42106A1 (en) |
| CS (1) | CS244540B1 (en) |
| DD (1) | DD156270A1 (en) |
| DE (1) | DE3145740A1 (en) |
| DK (1) | DK169489B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4105402A1 (en) * | 1991-02-21 | 1992-09-17 | Braunschweigische Masch Bau | DEVICE FOR COOLING GRAIN AND CRYSTALLINE, SOLID PARTICLES TENDING TO BONDING |
| DE19700029B4 (en) * | 1997-01-02 | 2006-03-09 | Glatt Ingenieurtechnik Gmbh | Fluidized bed apparatus |
| CN114963719B (en) * | 2022-08-01 | 2022-09-30 | 烟台恒邦化工助剂有限公司 | Drying device for preparing ammonium nitrate black powder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4911076B1 (en) * | 1970-07-17 | 1974-03-14 | ||
| DE2243670C3 (en) * | 1972-09-06 | 1975-08-07 | Vyzkumny Ustav Chemickych Zarizeni Brno, Bruenn-Kralovo Pole (Tschechoslowakei) | Process and fluid bed dryer for the continuous drying of granular materials |
| DE2840496C2 (en) * | 1978-09-18 | 1982-04-15 | Heinz 2050 Hamburg Schumacher | Device for carrying out reactions between solids and gases or vapors in the fluidized bed |
| DE2924523A1 (en) * | 1979-06-18 | 1981-01-15 | Urad Predsednictva Slovenskej | Processing of material by fluidisation - using fluidised bed equipped with stirrer |
-
1981
- 1981-04-23 DD DD22943081A patent/DD156270A1/en not_active IP Right Cessation
- 1981-11-19 DE DE19813145740 patent/DE3145740A1/en active Granted
-
1982
- 1982-02-05 BG BG5526382A patent/BG42106A1/en unknown
- 1982-02-10 CS CS89382A patent/CS244540B1/en unknown
- 1982-03-17 DK DK117282A patent/DK169489B1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE3145740A1 (en) | 1982-11-11 |
| DK117282A (en) | 1982-10-24 |
| CS244540B1 (en) | 1986-07-17 |
| BG42106A1 (en) | 1987-10-15 |
| DD156270A1 (en) | 1982-08-11 |
| DE3145740C2 (en) | 1989-11-30 |
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