EP0068734A2 - Mehrstufentrockner für körniges Material mit kanalisierter Abführung - Google Patents

Mehrstufentrockner für körniges Material mit kanalisierter Abführung Download PDF

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Publication number
EP0068734A2
EP0068734A2 EP82303149A EP82303149A EP0068734A2 EP 0068734 A2 EP0068734 A2 EP 0068734A2 EP 82303149 A EP82303149 A EP 82303149A EP 82303149 A EP82303149 A EP 82303149A EP 0068734 A2 EP0068734 A2 EP 0068734A2
Authority
EP
European Patent Office
Prior art keywords
drying
column
particulate material
dryer
columns
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.)
Granted
Application number
EP82303149A
Other languages
English (en)
French (fr)
Other versions
EP0068734A3 (en
EP0068734B1 (de
Inventor
Christianus Marinus Theresia Westelaken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/275,313 external-priority patent/US4398356A/en
Priority claimed from US06/275,312 external-priority patent/US4423557A/en
Application filed by Individual filed Critical Individual
Priority to AT82303149T priority Critical patent/ATE33306T1/de
Publication of EP0068734A2 publication Critical patent/EP0068734A2/de
Publication of EP0068734A3 publication Critical patent/EP0068734A3/en
Application granted granted Critical
Publication of EP0068734B1 publication Critical patent/EP0068734B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
    • F26B17/122—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the material moving through a cross-flow of drying gas; the drying enclosure, e.g. shaft, consisting of substantially vertical, perforated walls
    • 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
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods

Definitions

  • the present invention provides a gravity flow grain dryer for particulate material comprising a first generally vertical drying column having first and second opposed spaced perforate walls.
  • a second generally vertical drying column having first and_second opposed spaced perforate walls is also provided, the first and second drying columns being spaced apart to provide a plenum chamber between the columns, the first perforate walls of each drying column defining the side walls of the plenum chamber.
  • First and second input means are provided for introducing particulate material into the first and second drying columns, respectively.
  • First and second discharge means are provided for removing particulate material from the first and second drying cclumns, respectively.
  • a column type gravity flow dryer for particulate material for example, corn or other type grain.
  • the dryer generally designated 10, includes a generally square-shaped housing 12 comprised of a pair of solid end walls 14 and 16 and a pair of side walls 18 and 20. Each of the side walls 18 and 20 includes solid upper and lower portions 22 and 24, respectively, and a perforate intermedite portion 26.
  • the housing 12 further includes a suitable roof 28 and is supported at the bottom by suitable support means or legs 30.
  • At the top of the housing 12 is a means for introducing moist particulate material or grain into the top portion of the housing, in this embodiment, a suitably sized wet grain inlet 32.
  • the heater section 40 and the blower section 38 are separated by a generally horizontally disposed partition 64 which contains an airflow control means, comprising in this embodiment, a plurality of adjustable dampers 66.
  • the adjustable dampers 66 are provided to control the flow of air from the hot air fan 44 to the burner 58.- In this manner, it is possible to effectively regulate the hot air flow into the housing 12 to efficiently dry a variety of different types of particulate material. For example, it may be desirable to provide a large hot ⁇ ir flow into the housing 12 for drying high moisture content corn and a much smaller hot air flow into the housing 12 for drying lower moisture content rice.
  • the adjustable dampers 66 may be set in a substantially fully open position to apply a large hot air flow to dry corn or in a substantially closed position to apply a small hot air flow when drying rice.
  • each of the outer drying columns 68 is a dividing wall means, in the present embodiment a generally vertical partition 76, for dividing the lower portion of each of the drying columns 68 into two generally parallel channels 78 and 80.
  • Each of the channels 78 and 80 preferably contains separate discharge means, in the present embodiment metering rolls 82 and 84, respectively, for discharging particulate material from the channels 78 and 80 at predetermined rates.
  • Both of the metering rolls 82 and 84 are driven by a system of drive belts and pulleys generally designated 85. As shown, the drive pulley for the metering roll 84 is of a smaller diameter than the drive pulley for metering roll 82.
  • metering roll 84 rotates faster than metering roll 82 to thereby discharge grain from the innermost channel 80 at a faster rate than the grain is discharged from the outermost channel 78.
  • the grain from both channels 78 and 80 is discharged by the respective metering rolls 82 and 84 into a receiving hopper 86.
  • the inner drying columns 100 also have a generally vertical partition 118, which divides each column into inner and outer channels 120 and 122 in a manner corresponding to the partitions 76 for the outer drying columns 68.
  • Discharge means in the form of metering rolls 124 and 126 are also provided for discharging grain from the inner and outer channels 120 and 122, respectively.
  • the metering rolls 124 and 126 also turn at different predetermined rates for discharging the grain from the channels 120 and 122 at different rates.
  • the metering rolls 126 adjacent the first perforate walls 108 discharge the material at a rate faster than the metering rolls 124.
  • a pair of complementary modules 160 When a pair of complementary modules 160 are placed in position in the dryer housing 12 as shown in Fig. 4, they form the drying columns 68 and 100.
  • the upper and lower portions of the modules 160 are suitably contoured to enable the modules to be appropriately positioned within the dryer housing 12 as shown in Fig. 4.
  • the tapered perforate tubes 116 are connected to and cooperate with the hot air ducts 62 (shown in Fig. 1) for the distribution of hot air within the plenum chamber 112.
  • the triangular-shaped air ducts 127 are connected to and cooperate with the cooling air ducts 56 (shown in Fig. 1) to provide a flow of cooling air when the modules 160 are in place within the dryer housing 12.
  • the grain flowing down the columns adjacent to perforate walls 70 is dried more rapidly than the grain flowing down the column adjacent outer walls 26. Accordingly, as also discussed in detail above relative to Fig. 3, the grain flowing through the columns 68 adjacent perforate walls 70 is discharged from the columns 68 at a faster rate than the grain flowing down the column adjacent the perforate walls 26.
  • All of the grain discharged from the outer columns 68 is received and collected in the first receiving hopper 86.
  • the collected grain flows downwardly within the hopper 86 and enters the vertical tube member 88 through the openings 94.
  • the rotating grain auger 90 within the vertical tube member 88 transports the grain upwardly to the top of the tube member 88 where it is discharged into the steeping chamber 96.
  • the heated air passing through the inner drying columns 100 enters the central chamber 134 and is recycled back to the hot air fan 44 for reuse.
  • the cooling air which has passed through the inner columns 100 and has picked up heat from the heated grain within the columns is recycled back to the hot air fan 44 in the same manner.
  • the heated air passing through the outer columns 68 is too saturated with moisture which has been removed from the grain, to be of desired use in recycling, and, thus, is exhausted to the atmosphere through the outer perforate walls 26.
  • the tubular structure 210 may be removed from the base portion 202 and turned over or reversed to a position as shown in Fig. 13, with the second (perforated wall) chamber 222 adjacent the base portion 2.02, and with the first (solid wall) chamber 220 being remote from the base portion 202.
  • the reversal of the tubular structure 210 is accomplished by simply removing the nuts and bolts 212 from the flanges 214 and 216, reversing end-for-end the tubular structure 210, and replacing the nuts and bolts 212 through the corresponding aligned flanges 214 and 216'.
  • the chamber adjacent the base portion 202 serves as a heat exchange chamber, while the chamber remote from the base portion 202 functions as a manifold chamber.
  • the combustion gases pass upwardly and are exhausted to the atmosphere as shown between covering member 229, which is supported by projections 241, and flange 216.
  • Ambient air is drawn into the apparatus through the air inlet means 223 (now located in the heat exchange chamber) as shown in Fig. 13,'passes around the hot vertical tubes 208 and is heated thereby. The heated ambient air is then drawn into the dryer 10 through the opening 234.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
EP19820303149 1981-06-19 1982-06-17 Mehrstufentrockner für körniges Material mit kanalisierter Abführung Expired EP0068734B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82303149T ATE33306T1 (de) 1981-06-19 1982-06-17 Mehrstufentrockner fuer koerniges material mit kanalisierter abfuehrung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/275,313 US4398356A (en) 1981-06-19 1981-06-19 Multi-stage dryer for particulate material
US275312 1981-06-19
US06/275,312 US4423557A (en) 1981-06-19 1981-06-19 Gravity flow dryer for particulate material having channelized discharge
US275313 1988-11-23

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP86107817A Division EP0206069A3 (de) 1981-06-19 1982-06-17 Mehrstufentrockner für körniges Material mit kanalisierter Entleerung
EP86107817.8 Division-Into 1982-06-17

Publications (3)

Publication Number Publication Date
EP0068734A2 true EP0068734A2 (de) 1983-01-05
EP0068734A3 EP0068734A3 (en) 1984-09-12
EP0068734B1 EP0068734B1 (de) 1988-03-30

Family

ID=26957361

Family Applications (2)

Application Number Title Priority Date Filing Date
EP86107817A Ceased EP0206069A3 (de) 1981-06-19 1982-06-17 Mehrstufentrockner für körniges Material mit kanalisierter Entleerung
EP19820303149 Expired EP0068734B1 (de) 1981-06-19 1982-06-17 Mehrstufentrockner für körniges Material mit kanalisierter Abführung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP86107817A Ceased EP0206069A3 (de) 1981-06-19 1982-06-17 Mehrstufentrockner für körniges Material mit kanalisierter Entleerung

Country Status (10)

Country Link
EP (2) EP0206069A3 (de)
AR (1) AR226984A1 (de)
AU (2) AU565672B2 (de)
BR (1) BR8203554A (de)
CA (1) CA1176053A (de)
DE (1) DE3278292D1 (de)
DK (2) DK259682A (de)
GR (1) GR76498B (de)
HU (1) HU189147B (de)
NZ (1) NZ200681A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU582301B2 (en) * 1981-06-19 1989-03-16 Christianus M.T. Westelaken Multi-stage particulate material dryer having channelized discharge
GB2338286A (en) * 1998-06-12 1999-12-15 Sukup Mfg Drying grain
WO2005028977A1 (en) * 2003-09-25 2005-03-31 Maddingley Coldry Pty Ltd Dryer, drying method and drying plant
CN106679393A (zh) * 2017-01-20 2017-05-17 中国科学院理化技术研究所 一种粮食烘干系统
CN109095017A (zh) * 2018-09-06 2018-12-28 云南中烟工业有限责任公司 一种新型打叶器进料流量控制装置
CN113280610A (zh) * 2021-05-31 2021-08-20 安徽华谷机械科技有限公司 一种梯度脱水的粮食烘干机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201007697D0 (en) 2010-05-06 2010-06-23 Ucl Business Plc A supra-threshold test for use in detecting sensitivity loss across the field of vision
CN114963740B (zh) * 2022-04-29 2023-07-07 江苏经贸职业技术学院 一种食品加工烘干装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732630A (en) * 1956-01-31 Markowich
GB190920758A (en) * 1909-09-10 1910-09-12 Diedrich Uhlhorn Shaft Drier for Corn with Automatically Regulated Discharge of the Dried Material.
GB213799A (en) * 1923-05-25 1924-04-10 George Richard Schueler Improvements in apparatus for cooling and drying nuts, cubes and similarly shaped pieces of compressed material for use as food for cattle and other animals, and grain, seed and other material in bulk
DE462031C (de) * 1925-11-07 1928-07-03 Otto Nordstroem Schachttrockner mit einem aus Siebmaenteln gebildeten Ringschacht
DE717052C (de) * 1939-01-12 1942-02-04 August Gronert Rieselschachttrockner fuer koerniges Gut
US3078590A (en) * 1960-06-27 1963-02-26 A F Meyer Mfg Co Grain dryer
US3238640A (en) * 1962-09-04 1966-03-08 Hart Carter Co Grain dryer
DE1604920B2 (de) * 1965-12-23 1973-01-18 Wilhelm Heine, Malzfabrik, 3150 Peine Vertikaltrockner fuer getreide bzw. zum schwelken und darren von malz
FR93262E (fr) * 1966-08-31 1969-03-07 Etablissements Rivierre Casali Séchoir pour produits granuleux.
US3426442A (en) * 1967-06-01 1969-02-11 Toshihiko Satake Drying apparatus for cereals
CH497768A (de) * 1968-10-10 1970-10-15 Sulzer Ag Bestrahlungsanlage, insbesondere für körniges Gut
US4223452A (en) * 1979-02-12 1980-09-23 Chambers John M Drying process and apparatus for accomplishing the same
US4423557A (en) * 1981-06-19 1984-01-03 Westelaken C Gravity flow dryer for particulate material having channelized discharge
NZ200681A (en) * 1981-06-19 1987-03-06 Westelaken C Gravity flow grain dryer with two stages of drying

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU582301B2 (en) * 1981-06-19 1989-03-16 Christianus M.T. Westelaken Multi-stage particulate material dryer having channelized discharge
GB2338286A (en) * 1998-06-12 1999-12-15 Sukup Mfg Drying grain
GB2338286B (en) * 1998-06-12 2001-11-14 Sukup Mfg Method and apparatus for drying grain
WO2005028977A1 (en) * 2003-09-25 2005-03-31 Maddingley Coldry Pty Ltd Dryer, drying method and drying plant
AU2004274520B2 (en) * 2003-09-25 2009-07-23 Ect Coldry Pty Ltd Dryer, drying method and drying plant
AU2010100952B4 (en) * 2003-09-25 2010-10-28 Ect Coldry Pty Ltd Dryer and drying plant
AU2004274520C1 (en) * 2003-09-25 2010-12-09 Ect Coldry Pty Ltd Dryer, drying method and drying plant
CN106679393A (zh) * 2017-01-20 2017-05-17 中国科学院理化技术研究所 一种粮食烘干系统
CN109095017A (zh) * 2018-09-06 2018-12-28 云南中烟工业有限责任公司 一种新型打叶器进料流量控制装置
CN113280610A (zh) * 2021-05-31 2021-08-20 安徽华谷机械科技有限公司 一种梯度脱水的粮食烘干机

Also Published As

Publication number Publication date
HUT35834A (en) 1985-07-29
AU582301B2 (en) 1989-03-16
EP0068734A3 (en) 1984-09-12
EP0206069A3 (de) 1987-02-25
DK468988D0 (da) 1988-08-19
DK468988A (da) 1988-08-19
DK259682A (da) 1982-12-20
EP0206069A2 (de) 1986-12-30
EP0068734B1 (de) 1988-03-30
AU8470282A (en) 1982-12-23
GR76498B (de) 1984-08-10
DE3278292D1 (en) 1988-05-05
BR8203554A (pt) 1983-06-07
AU565672B2 (en) 1987-09-24
AU7055187A (en) 1987-07-09
NZ200681A (en) 1987-03-06
AR226984A1 (es) 1982-08-31
HU189147B (en) 1986-06-30
CA1176053A (en) 1984-10-16

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