US3849901A - Apparatus for drying grain - Google Patents

Apparatus for drying grain Download PDF

Info

Publication number
US3849901A
US3849901A US00364955A US36495573A US3849901A US 3849901 A US3849901 A US 3849901A US 00364955 A US00364955 A US 00364955A US 36495573 A US36495573 A US 36495573A US 3849901 A US3849901 A US 3849901A
Authority
US
United States
Prior art keywords
shaft
floor
shaped member
granular material
channel shaped
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 - Lifetime
Application number
US00364955A
Other languages
English (en)
Inventor
R Smith
L Keese
V Sietmann
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
Application filed by Individual filed Critical Individual
Priority to US00364955A priority Critical patent/US3849901A/en
Priority to US05/449,379 priority patent/US3943636A/en
Priority to CA199,540A priority patent/CA1017559A/fr
Application granted granted Critical
Publication of US3849901A publication Critical patent/US3849901A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F26B9/063—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers for drying granular material in bulk, e.g. grain bins or silos with false floor
    • 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

  • An apparatus for drying grain comprising a conical shaped perforated floor which is mounted in a conventional grain drying bin in a raised position relative to the base floor thereof.
  • the perforated floor has a plurality of .grain discharge openings formed adjacent the outer ends thereof, each of which are selectively closed by a trap door valve means.
  • Power means is provided for moving the valve means between opened and closed positions responsive to the temperature of the grain positioned on thefloor.
  • a pair of spaced apart upstanding wall members are positioned above the floor to maintain the grain thereon in a predetermined manner.
  • a sensing means is provided above the floor to actuate the material conveyor means and the means for introducing drying air into the interior of the bin.
  • Another method of grain drying is that of batch drying grain within the upper portion of a conventional grain drying bin.
  • This latter method uses a substantially horizontal floor with trap door or gate means formed therein, and with drying air being forced beneaththe upper floor, passing therethrough to dry the grain thereabove. After drying, the grain is dumped onto the base floor of the bin for storage purposes.
  • Disadvantages of this method are believed to include an excess of equipment such as a grain leveler mounted above the upper floor for distributing grain in a level manner thereon, and the provision of a sweep auger also directlyabove the upper floor for aiding in the dumping of the grain after drying through the doors or gate.
  • a further object of this invention is to provide an apparatus for drying grain which can be added to conventional grain bins in an economical manner.
  • a still further object of the invention is to provide a grain drying apparatus for use in conventional grain bins wherein storage space therein is used to the utmost.
  • a still further object of this invention is to provide a grain drying apparatus including means for precisely controlling the operation of the supply auger and the gas dryer.
  • a still further object of the invention is to provide an apparatus for drying grain including means for controlling the flow of the dried grain from a perforated drying floor.
  • a still further object of the invention is to provide a grain drying apparatus including means for more evenly drying the grain.
  • a still further object of the invention is to provide a grain drying apparatus which is economical of manufacture and durable in use.
  • FIG. 1 is a vertical cross-sectional view of the grain drying apparatus of this invention shown and installed in an assembled relationship within a grain bin:
  • FIG. 2 is an enlarged sectional view seen on lines 2-2 of FIG. 1:
  • FIG. 3 is an enlarged sectional view seen on lines 33 of FIG. 2:
  • FIG. 4 is an enlarged sectional view seen on lines 44 of FIG. 2:
  • FIG. 5 is a sectional view seen on lines 5-5 of FIG. 4:
  • FIG. 6 is a perspective view of one form of the trap door of this invention:
  • FIG. 7 is a-partial vertical cross-sectional view illustrating the relationship of the trap door of FIG. 6 and the perforated drying floor:
  • FIG. 8 is a view similar to FIG. 7 but which illustrates the trap door in'its raised position:
  • FIG. 9 is a perspective view of a modified fonn of the trap door:
  • FIG. 10 is a viewsimilar to FIG. 7 except that the modified form of the trap door ofFIG. 9 is illustrated:
  • FIG. 11 is a view similar to FIG. 8except that the trap door of FIGS. 9 and l0is shown in its raised position:
  • FIG. 12 is a side view of the apparatus for controlling the operation of the conveyor auger, gas valve and dryer blower:
  • FIG. 13 is a view similar to FIG. l2exceptthat the grain is shown in a somewhat lower position:
  • the numeral 10 generally designates a conventional grain bin which houses the grain drying apparatus indi cated generally at 12 which is capable of drying granular material 14 for subsequent storage in the lower part of the bin 10.
  • the grain bin 10 comprises a side wall l6 and a conical shaped roof 18 mounted thereon.
  • An opening 20 is formed in .the apex of the roof 1 8, and therebelow is found a foundation or base floor 22.
  • the base floor 22 has an X-shaped trough 24 formed therein, and spaced above the surface of the base floor 22 is a perforated plate 26 capable of holding granular material while enabling air from therebelow to pass upwardly therethrough.
  • One leg of the trough 26 communicates to the exterior of the bin through a passage 28 formed on the side wall 16.
  • a blower system 30 is fluidly connected with the trough 24 through a duct 32, and upon energizing the blower 30, air is forced into the trough 24 whereupon it circulates upwardly through the perforated floor plate 26 and through granular materials stored thereon for aeration purposes.
  • a sump opening 34 is formed therein which fluidly communicates with a tunnel 36 formed in the lower floor 22.
  • the tunnel 36 leads from the sump opening 34 to an area 38 immediately outside the bin 10.
  • An auger 40 is axially mounted in the tunnel 36, with one end thereof secured to a gear housing 42 mounted in the base of the sump opening 34, with the other end extending to the area 38.
  • a motor 44 is mounted on the outside of the bin 10 and is belt connected to the auger 40 for rotating the same.
  • the gear housing 42 has a vertically disposed shaft 46 rotatably mounted therein which extends upwardly therefrom. Secured to the upper part of the shaft 46 is a second gear housing 48. A sweep auger is rotatably attached to the gear housing 48 and is operated thereby. The motor 44 is operable to rotate the auger 36 which in turn causes the sweep auger 50 to rotate about its horizontal axis and to rotate about the shaft 46. The purpose of the auger 36 and the sweep auger 50 will be described in more detail hereinafter.
  • the drying apparatus 12 of this invention comprises generally an overhead floor structure indicated generally at 52, a grain discharge apparatus indicated generally at 54 and a grain leveling control apparatus indicated generally at 56 in FIG. 1.
  • a drying apparatus indicated generally at 58 is also utilized with the invention and of course is necessary for the entire drying process to occur.
  • the overhead floor structure 52 comprises specifi cally a conical shaped perforated floor 60 with the slope of the floor 50 being generally parallel to the slope of the roof 18, although this is not critical.
  • the numeral 62 generally comprises a storage bin having a conveyor auger 64 extending from the lower end thereof which is in communication with the opening 20. Conveyor auger 64 is driven by the electric motor 66.
  • Grain discharge apparatus 54 generally comprises a housing 68 which is secured to the central portion of the overhead floor structure 52 as illustrated in FIG. 4.
  • Housing 68 has an intake opening 70 formed at one end thereof and a discharge opening 72 formed at the other end thereof as also seen in FIG. 4.
  • Electric motor 74 is mounted in the housing 68 and drives a fan means 76.
  • Shaft 78 is rotatably mounted in bearings 80 and 82 and has a fan means84 mounted thereon which is positioned closely adjacent the fan means 76.
  • Sprocket 86 is mounted on the outer end of shaft 78 and drives a chain 88 extending therearound. Chain 88 extends around a sprocket 90 mounted on one end of a shaft 92 which is secured to the underside of the housing 68 by bearings 94 and 96.
  • the numeral 98 refers to a flexible cable or the like which is wound upon the shaft 92 so that rotation of the shaft 92 in one direction will cause the cable length 100 to move upwardly while the cable length 102 will move downwardly. Rotation of the shaft 92 in an opposite direction will cause the cable length 100 to move downwardly while the cable length 102 moves upwardly.
  • a counter weight 104 is secured to the lower end of cable length 100 while a support 106 is secured to the lower end of cable length 102.
  • a plurality of cables 108 are secured to the support 106 and extend radially therefrom as illustrated in the drawings.
  • Each of the cables 108 are secured to one end of a trap door generally referred to by the reference numeral 110.
  • Each of the trap doors 110 are pivotally connected at 112 to the overhead floor structure 52 as illustrated in FIG. 7.
  • the perforated floor 60 is provided with an opening 114 which is positioned above the outer end of each of the trap doors 110.
  • Each of the trap doors 110 are channel or U-shaped generally comprising a bottom 116 and upstanding sides 118 and 120.
  • Each of the trap doors 110 are provided with an arcuate lip 122 which extends upwardly from bottom 116 as seen in FIGS. 6 and 7.
  • the numeral 110 refers generally to a modified form of the trap door which is seen in FIGS. 9-11.
  • Trap door 110' is identical to trap door 110 except that the lip 122 has been omitted from trap door 110.
  • a channel 124 is pivotally connected to sides 118' and by pin 126.
  • Chain 128 extends from the overhead floor structure 52 to the channel 124 as seen in FIGS. 10 and 11.
  • the outer end of the channel 124 is in engagement with the bottom 116' of the trap door 110.
  • the outer end of the channel 124 is out of engagement with the bottom 116 to permit the material to flow therebeneath.
  • Grain leveling apparatus 56 generally comprises a first circular wall means 130 extending between the roof 18 and the overhead floor structure 52 and positioned centrally with respect thereto as seen in FIG. 1.
  • Wall means 130 is provided with a plurality of closely spaced perforations 132 formed therein adjacent the upper end thereof extending therearound to permit the passage of air therethrough as illustrated in FIG. 3.
  • Wall means 130 is also provided with a plurality of openings 134 and 136 formed therein adjacent the lower end thereof as seen in FIG. 12.
  • An outer wall means 136 is positioned above the overhead floor structure 52 as illustrated in FIG. 1 and extends around the wall means 130.
  • FIG. 3 illustrates the fact that the upper end of the wall means 136 is spaced below the roof 18 to permit the passage of air therebetween.
  • Wall means 136 is provided with a plurality of openings 138 formed therein to permit the grain to flow therethrough.
  • the wall means 130 and 136 define grain cells 140, 142 and 144.
  • the grain flows through the openings 138 so as to achieve a predetermined level in the grain cell 144 generally indicated at 146.
  • the grain will flow through the openings 134 in wall means 130 so as to achieve a predetermined grain level in cell 142 generally indicated at 148.
  • the level of the grain in grain cell is controlled by a sensing appara tus referred to generally by the reference numeral which is best illustrated in FIGS. 12-15.
  • Sensing apparatus 150 comprises a ratchet arm 152 pivotally connected to the upper end of wall means 130 at 154 and extending inwardly therefrom.
  • Ratchet arm 152 is provided with a plurality of sawtooth-like notches 156 formed in the underside thereof.
  • Arm 158 is pivotally connected to roof 18 at 160 and extends downwardly therefrom as seen in the drawings.
  • Arm 158 is provided with a plate 162 at its lower end and is provided with a transversely extending arm member 164 intermediate the ends thereof.
  • ratchet arm 152 is adapted to slidably engage the arm member 164 at times.
  • Arm 166 is pivotally connected to roof 18 at 168 and extends downwardly therefrom as illustrated in FIG. 15. Arm 166 is provided with plate 170 at its lower end. As illustrated in the drawings, the upper end of plate 170 is adapted to engage the notches 156 at times.
  • numeral 172 refers to a mercury switch connected to arm 166. When arm 166 is in the position illustrated in FIG. 14, the switch is closed upon contact 174 to actuate the auger motor 66 which is electrically connected thereto as illustrated in FIG. 16. When the mercury switch 172 is in the position illustrated in FIG. 13, contact 174 is open.
  • the numeral 182 refers to a thermostatically controlled switch which controls the operation of the motor 74. When a grain temperature of approximately l20F. is sensed by the thermostat 182, electric motor 74 is actuated as is the motor 44.
  • the circuitry is controlled by master switches 184 and 185.
  • the dryer blower and auger motor 44 are on separate circuits (not shown).
  • the trap doors l10 will be in their hor izontal or closed position such as illustrated by broken lines in FIG. 1.
  • the sensing mechanism 150 will be in the position illustrated in FIG. 14 when grain cell 140 is empty.
  • Mercury switch 172 will normally be closed upon contact 174 when the arm 166 is hanging in its vertical position as illustrated in FIG. 14.
  • the master switch 184 is initially closed when it is desired to begin the drying operation. The closing of the switch 184 causes auger motor 66 to be energized so that the grain will be conveyed from the storage bin 62 to the upper open end of the bin.
  • the grain will be deposited in the grain cell 140 and the grain will flow downwardly and outwardly into the grain cells 142 and 144 to achieve the levels illustrated in FIG. 3.
  • the construction of the wall means 130 and 136 and the perforations formed therein is such that the-desired level of grain is maintained without avalanching the same. Since the trap doors 110 are closed, the grain will dam up on the outer ends of the trap doors to prevent the grain from flowing through the openings 114 in the perforated floor 60.
  • Auger motor 66 continuesto operate to supply grain to the grain cell 140 and the grain in the grain cell 140 will cause plate 162 and arm 158 to pivotally move outwardly as the grain level rises in the grain cell 140. As the grain level rises in grain cell 140, the grain will engage the plate 170 to cause the arm 166 to be pivotally moved outwardly to the position illustrated in FIG. 13. 4 With the arm 166 in the position illustrated in FIG. 13,
  • the mercury switch 172 will deactivate the auger motor 66.
  • the arm 166 pivotally moves outwardly, the upper end of plate 170 will engage the notches 156 and will be maintained therein until the level of the grain in the grain cell 140 is lowered to a predetermined level.
  • heated air is passed upwardly through the perforated floor 60 by the dryer apparatus 58 and the blower apparatus 30. Blower apparatus 30 cools the heated dry corn. The heated air will be passed through the grain in the grain cells until the thermostat 182 senses a grain temperature of approximately F. When thermostat 182 senses 120 F., the motor 74 is actuated to cause the rotation of the fan means 76.
  • Rotation of the fan means 76 causes the fan means 84 to be rotated which in turn causes shaft 78 and shaft 92 to be rotated.
  • Rotation of the shaft 92 causes cable length 104 to be effectively shortened as it wraps around the shaft 92 so that the counterweight 104 is moved] from the maximum upper position illustrated by broken lines in FIG. I to the lower position illustrated by solid lines in FIG. 1.
  • the motor 74 operates longer than necessary to lift the counterweight to its maximum upper position, but the torque converter means (fans 76 and 84 and related structure) prevents any damage from occurring to the components as motor 74 and fan 76 continue to run and fan 84 stops.
  • FIGS. 12l4 illustrate the manner in which the sensing means sense the lowering of the grain level in cell 140.
  • the sensing apparatus 150 will remain in the position illustrated in FIG. 12 until such time as the level of the grain is substantially at the lower end of the plate 162.
  • the continued lowering of the grain level in cell 140 causes the arm 158 to pivot from the position of FIG. 13 to the position of FIG. '14.
  • the ratchet arm 152 maintains the arm 166 in the position of FIG.
  • the thermostat 182 will again open which causes the motor 74 to be deactivated.
  • the counterweight 104 causes the shaft 92 to be rotated which causes the support 106 to move upwardly so that the cables 108 move the trap doors from their open position (solid lines, FIG. 1) to their closed position (dotted lines, FIG. 1) so that the grain will be maintained on the perforated floor 60 until the predetermined drying temperature is achieved.
  • FIG. 10 illustrates the trap door 110 in its open position and it can be seen that the grain will flow beneath the channel 124 which has been pivotally moved upwardly by the chain 128. As counterweight 104 initially moves the door 110' upwardly, the channel 124 will pivot downwardly so as to dam the grain in a manner similar to the lips 122 on trap doors 110.
  • a novel apparatus for drying grain which dries the grain in a continuous manner rather than in a batch type manner.
  • the thermostat 182 constantly senses the temperature of the grain to permit the flow of grain from the perforated floor 60 when the grain has reached a predetermined temperature and to cause additional grain to be supplied to the bin when the thermostat 182 senses a temperature less than the temperature which would indicate that the grain is dry.
  • the sensing apparatus 150 provides a means for automatically supplying additional grain to the bin whenever the level of the grain within grain cell 140 lowers to a predetermined level.
  • the manner in which the trap doors are opened by the electric motor through the fan means 76 and 84 provides an economical and efficient manner of controlling the operation of the trap doors. it should be understood that the fan means 76 and 84 could be replaced by an air or hydraulic torque converter if so desired.
  • An apparatus for drying granular material in a grain bin having an enclosure forming wall, a roof mounted over the wall, and a base floor for the wall, the apparatus comprising:
  • a floor mounted in the upper part of the bin, said floor being inclined and sloping downwardly from the center of the bin toward and in contacting relation with the wall whereby granular material disposed on said floor is normally prevented from falling onto said base floor, said floor having a plurality of spaced apart openings formed therein adjacent said wall through which the granular material can fall,
  • valve means positioned below each of said openings and being movable between open and closed positions to permit granular material to fall through said openings and to prevent granular material from falling through said openings respective,
  • thermostat means on said floor for sending the temperature of the granular material thereon
  • thermostat means being operatively connected to said means for opening and closing said valve means so that said valve means will be opened when said thermostat means senses a first predetermined temperature and so that said valve means will be closed when said thermostat means senses a second predetermined temperature.
  • said means for opening and closing said valve means comprises an are electric motor having an output shaft, a second shaftdisposed in a parallel, and spaced apart end-toend relationship with respect to said output shaft, a torque convertor means operatively connecting said output shaft and said second shaft so that rotation of said output shaft will cause the rotation of said second shaft, a third shaft disposed in a parallel relationship to said second shaft, means connecting said second and third shafts so that rotation of said second shaft will cause the rotation of said third shaft, a first flexible member wound upon said third shaft and extending downwardly therefrom, a support means secured to the lower end of said first flexible members, a plurality of second flexible members connected to said support and said valve means so that rotation of said third shaft in one direction will cause said valve means to open and so that rotation of said third shaft in an opposite direction will cause said valve means to close, a third flexible member wound upon said third shaft and extending downwardly therefrom, and a counter weight means secured to the lower end of said third flexible member.
  • said means for opening and closing said valve means comprises an electric motor having an output shaft, a second shaft disposed in a parallel, and spaced end-to-end relationship with respect to said output shaft, a torque convertor means operatively connecting said output shaft and said second shaft so that rotation of said output shaft will cause the rotation of said second shaft, a third shaft disposed in a parallel relationship to said second shaft, means connecting said second and third shafts so that rotation of said second shaft will cause the rotation of said third shaft, a first flexible member wound upon said third shaft and extending downwardly therefrom,
  • a support means secured to the lower end of said first flexible member, a plurality of second flexible members connected to said support and said valve means so that rotation of said third shaft in one direction will cause said valve means to open and so that rotation of said third shaft in an opposite direction will cause said valve means to close, a third flexible member wound upon said third shaft and extending downwardly therefrom, and a counter weight means secured to the lower end of said third flexible member, said torque convertor means comprising a first fan means mounted on said output shaft and a second fan means mounted on said second shaft.
  • said means for opening and closing said valve means comprises an electric motor having an output shaft, a second shaft disposed in a parallel, and spaced apart end-to-end relationship with respect to said output shaft, a torque convertor means operatively connecting said output shaftand said second shaft so that rotation of said output shaft will cause the rotation of said second shaft, a third shaft disposed in a parallel relationship to said second shaft, means connecting said second and third shafts so that rotation of said second shaft will cause the rotation of said third shaft, a first flexible member wound upon said third shaft and extending downwardly therefrom, a support means secured to the lower end of said first flexible member, a plurality of second flexible members connected to said support and said valve means so that rotation of said third shaft in one direction will cause said valve means to open and so that rotation of said third shaft in an opposite direction will cause said valve means to close, a third flexible member wound upon said third shaft and extending downwardly therefrom, and a counter weight means secured to the lower end of said third flexible member, said valve means comprising a
  • each of said valve means comprises a channel shaped member having inner and outer ends and being pivotally secured at its outer end to said bin and extending radially inwardly therefrom, the outer end of said channel shaped member being disposed below one of said openings, the inner end of said channel shaped member being connected to said means for opening and closing said valve means, and means on said channel shaped member for restricting the flow of material thereover as said channel shaped member is moved from its open position to its closed position.
  • said means on said channel shaped member comprises an arcuate lip extending upwardly from the bottom surface thereof.
  • said means on said channel shaped member comprising a plate means having inner and outer ends, said plate means being pivotally secured at its outer end to said channel shaped member and being movable from a first position wherein the outer end of said plate means is disposed above the bottom thereof to a second position wherein the outer end of said plate means engages the bottom of said channel shaped member, and a flexible means connected to said plate means for moving said plate means to its first position when said channel shaped member is moved to its open position and for moving said plate means to its second position when said channel shaped member is moved to its closed position.
  • At least one cylindrical wall member is positioned above said floor to define a central granular material cell, said wall member permitting the granular material to flow outwardly and downwardly therefrom in a predetermined man ner, a material conveyor means in communication with a source of granular material for conveying granular material to said central cell at times, and a material sensing means in said central cell for activating and deactivating said conveyor means dependent upon the level of the material in said central cell.
  • a power means is operatively connected to said valve means and said thermostat means, said power means comprising a motor and a torque convertor means.
  • said means on said channel shaped member comprises an arcuate lip extending upwardly from the bottom surface thereof.
  • said means on said channel shaped member comprises a plate means having inner and outer ends, said plate means being pivotally secured at its outer end to said channel shaped member and being movable from a first position wherein the outer end of said plate means is disposed above the bottom thereof to a second position wherein the outer end of said plate means engages the bottom of said channel shaped member, and a flexible means connected to said plate means for moving said plate means to its first position when said channel shaped member is moved to its open position and for moving said plate means to its second position when said channel shaped member is moved to its closed position.
  • An apparatus for drying granular material in a grain bin having an enclosure forming wall, a roof mounted over the wall, and a base floor for the wall, the apparatus comprising:
  • a floor mounted in the upper part of the bin, said floor being inclined and sloping downwardly from the center of the bin toward and in contacting relation with the wall whereby granular material disposed on said floor is normally prevented from falling onto said base floor, said floor having a plurality of spaced apart openings formed therein adjacent said wall through which the granular material can fall,
  • valve means positioned below each of said openings and being movable between open and closed positions to permit granular material to fall through said openings and to prevent granular material from falling through said openings respectively, said valve means comprising a channel shaped member having inner and outer ends and being pivotally secured at its outer end to said bin and extending radially inwardly therefrom, the outer end of said channel shaped member being disposed below one of said openings, the inner end of said channel shaped member being connected to said means for opening and closing said valve means, and means on said channel shaped member for restricting the flow of material thereover as said channel shaped member is moved from its open position to its closed position, means for opening and closing said valve means, and means for suppying drying air within the bin and below said floor.
  • said means on said channel shaped member comprises an arcuate lip extending upwardly from the bottom surface thereof.
  • said means on said channel shaped member comprising a plate means having inner and outer ends, said plate means being pivotally secured at its outer end to said channel shaped member and being movable from a first position wherein the outer end of said plate means is disposed above the bottom thereof to a second position wherein the outer end of said plate means engages the bottom of said channel shaped member, and a flexible means connected to said plate means for moving said plate means to its first position when said channel shaped member is moved to its open position and for moving said plate means to its second position when said channel shaped member is moved to its closed position.
  • An apparatus for drying granular material in a grain bin having an enclosure forming wall, a roof mounted over the wall, and a base floor for the wall, the apparatus comprising:
  • a floor mounted in the upper part of the bin, said floor being inclined and sloping downwardly from the center of the bin toward and in contacting relation with the wall whereby granular material disposed on said floor is normally prevented from falling onto said base floor, said floor having a plurality of spaced apart openings formed therein adjacent said wall through which the granular material can fall,
  • valve means positioned below each of said openings and being movable between open and closed positions to permit granular material to fall through said openings and to prevent granular material from falling through said openings respectively.
  • a central granular material cell positioned above said floor and adapted to permit granular material to flow outwardly and downwardly therefrom,
  • a material conveyor means in communication with a source of granular material for conveying granular material to said central cell at times
  • said sensing means comprising a pivotal ratchet arm assembly, a nonnally closed switch means on said ratchet arm assembly which is electrically connected to said conveyor means adapted to open and to deactivate said conveyor means when the granular material in said central cell has pivotally moved said ratchet arm assembly to a first position, and means on said ratchet arm assembly for maintaining said switch means in its open position until the level of the granular material in said central cell has lowered to a predetermined level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
US00364955A 1973-05-29 1973-05-29 Apparatus for drying grain Expired - Lifetime US3849901A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00364955A US3849901A (en) 1973-05-29 1973-05-29 Apparatus for drying grain
US05/449,379 US3943636A (en) 1973-05-29 1974-03-08 Apparatus for drying grain
CA199,540A CA1017559A (fr) 1973-05-29 1974-05-10 Appareil pour secher le grain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00364955A US3849901A (en) 1973-05-29 1973-05-29 Apparatus for drying grain

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/449,379 Continuation-In-Part US3943636A (en) 1973-05-29 1974-03-08 Apparatus for drying grain

Publications (1)

Publication Number Publication Date
US3849901A true US3849901A (en) 1974-11-26

Family

ID=23436850

Family Applications (1)

Application Number Title Priority Date Filing Date
US00364955A Expired - Lifetime US3849901A (en) 1973-05-29 1973-05-29 Apparatus for drying grain

Country Status (2)

Country Link
US (1) US3849901A (fr)
CA (1) CA1017559A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943636A (en) * 1973-05-29 1976-03-16 Sietmann Vernon H Apparatus for drying grain
US4003137A (en) * 1973-10-01 1977-01-18 Ab Bofors Method of drying wet powder
US4035928A (en) * 1975-07-21 1977-07-19 Sietmann Vernon H Apparatus for drying grain
US4217701A (en) * 1979-04-23 1980-08-19 Mathews B C Bin grain dryer
US4294019A (en) * 1979-05-07 1981-10-13 Seitmann Vernon H Grain drying apparatus
US4593477A (en) * 1982-12-16 1986-06-10 The Babcock & Wilcox Company Control system for a fluidized bed
FR2678915A1 (fr) * 1991-07-09 1993-01-15 Bibollet Jean Claude Silo destine a stocker des produits pulverulents, granuleux ou fibreux, tels que des cereales.
US20120011736A1 (en) * 2010-07-14 2012-01-19 The Gsi Group, L.L.C. Grain turner for tower grain dryer and method of drying
USD671564S1 (en) * 2011-04-20 2012-11-27 Moretto S.P.A. Hopper
USD671563S1 (en) * 2011-04-20 2012-11-27 Moretto S.P.A. Hopper
US20120304561A1 (en) * 2009-07-31 2012-12-06 Ctb, Inc. Integral catwalk support
USD763930S1 (en) * 2015-04-30 2016-08-16 Roger Baber Portable Welding, Llc Enclosed hopper

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479748A (en) * 1967-09-22 1969-11-25 Vernon H Sietmann Apparatus for and process of drying grain
US3501845A (en) * 1968-11-20 1970-03-24 Dendel Gerald F Apparatus for and process of drying grain
US3634949A (en) * 1969-12-31 1972-01-18 Robert A Louks Continuous-flow dryer for granular material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479748A (en) * 1967-09-22 1969-11-25 Vernon H Sietmann Apparatus for and process of drying grain
US3501845A (en) * 1968-11-20 1970-03-24 Dendel Gerald F Apparatus for and process of drying grain
US3634949A (en) * 1969-12-31 1972-01-18 Robert A Louks Continuous-flow dryer for granular material

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943636A (en) * 1973-05-29 1976-03-16 Sietmann Vernon H Apparatus for drying grain
US4003137A (en) * 1973-10-01 1977-01-18 Ab Bofors Method of drying wet powder
US4035928A (en) * 1975-07-21 1977-07-19 Sietmann Vernon H Apparatus for drying grain
US4217701A (en) * 1979-04-23 1980-08-19 Mathews B C Bin grain dryer
US4294019A (en) * 1979-05-07 1981-10-13 Seitmann Vernon H Grain drying apparatus
US4593477A (en) * 1982-12-16 1986-06-10 The Babcock & Wilcox Company Control system for a fluidized bed
FR2678915A1 (fr) * 1991-07-09 1993-01-15 Bibollet Jean Claude Silo destine a stocker des produits pulverulents, granuleux ou fibreux, tels que des cereales.
US20120304561A1 (en) * 2009-07-31 2012-12-06 Ctb, Inc. Integral catwalk support
US8511010B2 (en) * 2009-07-31 2013-08-20 Ctb, Inc. Integral catwalk support
US20120011736A1 (en) * 2010-07-14 2012-01-19 The Gsi Group, L.L.C. Grain turner for tower grain dryer and method of drying
US8601714B2 (en) * 2010-07-14 2013-12-10 The Gsi Group, Llc Grain turner for tower grain dryer and method of drying
USD671564S1 (en) * 2011-04-20 2012-11-27 Moretto S.P.A. Hopper
USD671563S1 (en) * 2011-04-20 2012-11-27 Moretto S.P.A. Hopper
USD763930S1 (en) * 2015-04-30 2016-08-16 Roger Baber Portable Welding, Llc Enclosed hopper

Also Published As

Publication number Publication date
CA1017559A (fr) 1977-09-20

Similar Documents

Publication Publication Date Title
US3849901A (en) Apparatus for drying grain
US3943636A (en) Apparatus for drying grain
US3487961A (en) Grain handling apparatus
US4035928A (en) Apparatus for drying grain
US3815257A (en) Continuous laundry dryer
US3092472A (en) Grain drier
US3479748A (en) Apparatus for and process of drying grain
US3911594A (en) Particulate material circulating means
US3698574A (en) Process and apparatus for spreading granular material
US5020246A (en) Grain drying system
US3501845A (en) Apparatus for and process of drying grain
US4294019A (en) Grain drying apparatus
US3416239A (en) Apparatus for treating granular material
US3071382A (en) Material spreader for use on a dump truck
US4020958A (en) Bulk material container loading and system
US3309782A (en) Method and apparatus for drying grain in a shallow bin
US2339979A (en) Drying apparatus
US3584843A (en) Apparatus for stirring grain in a storage bin
US3217693A (en) Livestock feeding apparatus
JP3295542B2 (ja) 太陽熱利用の穀物乾燥装置
JP3306704B2 (ja) 粒状体の乾燥装置および処理設備
US3373504A (en) Air-driven grain circulating means
RU2017391C1 (ru) Устройство для формирования скирды
JPS604951Y2 (ja) 貯槽における材料排出装置
JPH07218137A (ja) 太陽熱利用乾燥施設における均平配穀方法