CN209783189U

CN209783189U - Counter-flow grain dryer

Info

Publication number: CN209783189U
Application number: CN201920338902.4U
Authority: CN
Inventors: 陆军
Original assignee: Nanjing Zhonglong Energy Conservation Research And Development Co Ltd
Current assignee: Nanjing Zhonglong Energy Conservation Research And Development Co Ltd
Priority date: 2019-03-16
Filing date: 2019-03-16
Publication date: 2019-12-13
Anticipated expiration: 2029-03-16

Abstract

The utility model discloses a counter-flow grain drying-machine uses in the grain field of drying, and its technical scheme main points are: the grain-oriented heat-insulation rotary drum comprises a rotary drum and a driving piece for driving the rotary drum to rotate, wherein a plurality of material stirring pieces are arranged in the rotary drum; has the technical effects that: the hot air directly moves towards the grain which is not dried after drying the grain, thereby reducing the possibility that water vapor falls on the grain again and improving the drying efficiency of the grain.

Description

Counter-flow grain dryer

Technical Field

The utility model relates to a grain field of drying, in particular to counter-current grain drying-machine.

Background

Chinese patent with publication number CN101755904B discloses an energy-saving grain drying equipment, which comprises a drying tower, a feeding device, a hot-blast stove, an air cooler, a horn-shaped air tank, a grain discharging device and a tower seat, and the technical essential is that: at least three layers of horn-shaped air tanks are uniformly distributed in each section of the drying tower, the air outlet ends of the horn-shaped air tanks at the lowest layer are arranged on one side of the drying tower and connected with a waste heat collecting chamber, the waste heat collecting chamber is connected with a water-gas separator, the horn-shaped air tanks at the lowest layer are vertical to the horn-shaped air tanks at the upper side of the horn-shaped air tanks, the air inlet ends of the horn-shaped air tanks at the two adjacent layers of the upper side are respectively arranged on two sides of the drying tower and connected with a hot air chamber, the hot air inlet; the lower part of the heat exchanger is provided with a flue gas dust removal and purification device connected with the mixing chamber, a waste heat recovery chamber is arranged in the furnace body and communicated with a waste heat heating chamber, the waste heat heating chamber is communicated with the heat exchange chamber, and the bottom of the flue gas grate is provided with an air blast inlet outside the furnace and a separated gas outlet.

However, when the grain drying equipment works, the hot air can carry the dried water vapor after drying the grains, and the hot air and the grains simultaneously exist in the drying tower, so that the hot air can still contact the dried grains, the water vapor falls on the grains again, and the grain drying efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a counter-flow grain drying-machine, its advantage is: the hot air directly moves towards the grain which is not dried after drying the grain, thereby reducing the possibility that water vapor falls on the grain again and improving the drying efficiency of the grain.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a counter-current grain drying-machine, includes the commentaries on classics feed cylinder and is used for driving commentaries on classics feed cylinder pivoted driving piece, be equipped with a plurality of tablets in the commentaries on classics feed cylinder, work as when the commentaries on classics feed cylinder rotates, grain is followed after the feed end of commentaries on classics feed cylinder gets into the commentaries on classics feed cylinder the drive of tablet is down to a direction removal to set up this direction into forward, the discharge gate end drum of commentaries on classics feed cylinder goes into reverse hot-blast.

Through above-mentioned technical scheme, grain gets into in the commentaries on classics feed cylinder from the feed end of commentaries on classics feed cylinder, then driving piece drive commentaries on classics feed cylinder rotates, grain is in the forward movement under the drive of dialling the tablet, it is hot-blast to drum into to the discharge gate end of commentaries on classics feed cylinder this moment, hot-blast moving (reverse motion promptly) towards the flow direction of grain, hot-blast this moment can be dried grain, and the steam that grain gave out can move and discharge the commentaries on classics feed cylinder along the feed end of hot wind direction commentaries on classics feed cylinder, can reduce the possibility that steam falls once more on dried grain like.

the utility model is further arranged in such a way that the stirring sheet is vertical to the inner wall of the material rotating cylinder, and the included angle between the stirring sheet and the horizontal line is set to be 30 degrees ~ 60 degrees.

through the technical scheme, the included angle between the material shifting piece and the horizontal line is set to be 30-60 degrees, so that grains can move along the length direction of the material rotating cylinder rapidly and stably, and the dispersion rate of the grains is high, so that the drying efficiency of the grains is improved.

The utility model discloses further set up to: and one end of the stirring sheet, which is far away from the inner wall of the material rotating cylinder, is provided with a folding sheet which forms an angle with the stirring sheet.

Through the technical scheme, when the material stirring sheet conveys grains, the folded sheet can play a shoveling role on the grains, so that the grains are driven to overturn conveniently, the dispersion rate of the grains is improved, and the drying efficiency of the grains is further improved.

The utility model discloses further set up to: the folding pieces are in acute triangle shapes, and the smallest angle of the folding pieces faces the feeding direction of the grains.

Through the technical scheme, when the grains are shoveled by the folding pieces, the grains are dispersed in a fan shape towards the discharging direction under the guiding of the triangular folding pieces, so that the dispersion rate of the grains is improved, and the drying efficiency of the grains is further improved.

The utility model discloses further set up to: the periphery of the material rotating barrel at the feeding end is provided with a plurality of auxiliary pieces, and the included angle between each auxiliary piece and the horizontal line is larger than that between each material stirring piece and the horizontal line.

Through above-mentioned technical scheme, the contained angle of supplementary piece and water flat line is great, consequently can be with the leading-in grain of very fast in the material barrel that changes, reduces the possibility that grain is piled up at the feed end of changeing the material barrel.

The utility model discloses further set up to: the material transferring barrels are provided with a plurality of material transferring barrels which are mutually sleeved, gaps are arranged among the material transferring barrels, one ends of the two material transferring barrels which are separated from each other are sealed through a sealing annular plate, and the other ends of the two material transferring barrels are communicated.

Through the technical scheme, the grains can flow in the snake shape in each rotating cylinder, so that the grain drying amount in the unit land area is improved, the occupied area is reduced, the device is convenient to be applied to various terrains, and the installation difficulty is reduced.

The utility model discloses further set up to: the end of the rotating cylinder is provided with a plurality of threaded holes, and the closed ring plate is fixed on the rotating cylinder through bolts matched with the threaded holes.

Through above-mentioned technical scheme, the operator can be fast convenient pull down the closed ring board from two commentaries on classics feed cylinders to overhaul to commentaries on classics feed cylinder inside.

The utility model discloses further set up to: the closed ring plate is arranged into an arc shape protruding towards the direction far away from the material rotating barrel.

Through above-mentioned technical scheme, when grain gets into next commentaries on classics feed cylinder from a commentaries on classics feed cylinder in, curved closed crown plate can play a guide effect to grain, with the quick next commentaries on classics feed cylinder of direction of grain in, reduces the possibility that partial grain is piled up in two commentaries on classics feed cylinder junctures.

The utility model discloses further set up to: the driving piece is including setting up the support frame outside changeing the feed cylinder, the support frame all rotates along changeing feed cylinder length direction's both sides and is connected with the drive shaft, be equipped with a plurality of drive wheels in the drive shaft, the drive wheel is inconsistent with the outer wall that changes the feed cylinder, the drive shaft passes through driving motor drive.

Through above-mentioned technical scheme, driving motor during operation, the drive shaft rotates, and the drive wheel rotates in the below of changeing the feed cylinder this moment to change the feed cylinder can be with the frictional force effect of drive wheel under quick convenient rotation, this kind of drive mode can be quick convenient will change feed cylinder and driving piece separation, so that the operator transports, overhauls changeing the feed cylinder.

The utility model discloses further set up to: the outer edge of the material rotating cylinder is provided with an annular guide groove matched with the driving wheel, and a rubber layer is arranged in the annular guide groove.

Through the technical scheme, the driving wheel moves in the annular guide groove, and the annular guide groove can play a role in guiding the driving wheel, so that the possibility of horizontal displacement between the driving wheel and the rotating barrel is reduced, and the rotating stability of the rotating barrel is improved; the rubber layer has good buffering and wear-resisting properties, so that vibration and wear generated when the rotary barrel rotates can be reduced.

To sum up, the utility model discloses following beneficial effect has:

1. The hot air can dry the grains, and the water vapor emitted by the grains can move along the hot air to the feeding end of the material rotating barrel and is discharged out of the material rotating barrel, so that the possibility that the water vapor falls on the dried grains again can be reduced, and the drying efficiency is improved;

2. When the grain is shoveled by the folding piece, the grain is dispersed in a fan shape towards the discharging direction under the guiding of the triangular folding piece, thereby improving the dispersion rate of the grain and further improving the drying efficiency of the grain.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram of the plectrum sheet embodying the present embodiment.

Fig. 3 is a schematic structural diagram of the rotating barrel according to the embodiment for embodying the inside of the rotating barrel.

Fig. 4 is an enlarged view of a portion a in fig. 3.

reference numerals: 1. a material rotating barrel; 11. stirring the material sheet; 12. folding a sheet; 13. an auxiliary sheet; 2. a drive member; 20. a drive motor; 21. a support frame; 22. a drive shaft; 23. a drive wheel; 24. an annular guide groove; 25. a rubber layer; 3. a closed ring plate; 31. a threaded hole; 32. a bolt; 4. a sheet is fixed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): the utility model provides a counter-flow grain drying-machine, like figure 1 and figure 2, change feed cylinder 1 including a plurality of, establish to three in this embodiment, three internal diameter that changes feed cylinder 1 increases in proper order and cup joints gapped each other, two adjacent change feed cylinder 1 stagger along length direction and through 4 fixed connection of a plurality of stationary blades, the one end of two change feed cylinder 1 that are separated by flushes and seals through sealed crown plate 3, the other end is linked together, forms a serpentine channel between three change feed cylinder 1 this moment and flows in order to supply the grain. All be equipped with a plurality of stirring pieces 11 in each rotor barrel 1, rotor barrel 1 is equipped with outward and is used for driving all rotor barrels 1 pivoted driving piece 2, and when driving piece 2 drive rotor barrel 1 rotated, grain got into rotor barrel 1 from the feed end of innermost rotor barrel 1 in to flow along serpentine channel under stirring piece 11's effect, this direction set up to forward. At the moment, hot air enters the material transferring barrel 1 from the material discharging end of the material transferring barrel 1 on the outermost side and reversely flows towards grains, so that the grains are dried.

as shown in fig. 3 and 4, the periphery of the feeding end of the material transferring cylinder 1 is provided with a plurality of auxiliary pieces 13, an included angle between each auxiliary piece 13 and a horizontal line is set to be 75 degrees, so that grains can be rapidly stirred from the feeding end of the material transferring cylinder 1 and conveyed into the material transferring cylinder 1, the material stirring piece 11 in the material transferring cylinder 1 is perpendicular to the inner wall of the material transferring cylinder 1, the included angle between the material stirring piece 11 and the horizontal line is set to be 30-60 degrees, the embodiment is preferably 45 degrees, at the moment, when the material transferring cylinder 1 rotates, the grains can slowly move to the discharging end of the material transferring cylinder 1 along the inclined material stirring piece 11, and the grains can continuously roll in the moving process, so that the grains are fully contacted with hot.

As shown in fig. 3 and 4, a folded piece 12 is arranged at one end of the material stirring sheet 11 far away from the inner wall of the material rotating cylinder 1, the folded piece 12 is in an acute triangle shape, the smallest angle of the folded piece 12 faces the feeding direction of the grain, a 15-degree folded angle is formed between the whole folded piece 12 and the material stirring sheet 11, at this time, the material stirring sheet 11 and the folded piece 12 form a shovel shape, when the grain moves along the material stirring sheet 11, the grain can turn over and scatter in the whole material rotating cylinder 1 under the action of the shovel-shaped material stirring sheet 11 and the folded piece 12, the residence time of the grain in the air is improved, the dispersion rate of the grain is also improved, so that the drying is accelerated, and the folded piece 12 in the acute triangle shape can turn the grain towards the hot.

As shown in fig. 3 and 4, a plurality of threaded holes 31 are formed at the end of the rotary charging barrel 1 at equal intervals, and the sealing ring plate 3 is fixed on the rotary charging barrel 1 by bolts 32 matched with the threaded holes 31, so that an operator can detach the sealing ring plate 3 and overhaul the inside of the rotary charging barrel 1. The closed annular plate 3 is convex towards the direction of keeping away from the material rotating barrel 1 and is in a semicircular arc shape, and when grain enters the feeding end of the next material rotating barrel 1 from the discharging end of the material rotating barrel 1 at the inner side, the arc-shaped closed annular plate 3 can play a role in guiding the grain, so that the possibility that part of the grain is detained between the two material rotating barrels 1 is reduced.

As shown in fig. 1, the driving member 2 includes a supporting frame 21 disposed at the bottom of the outermost rotary barrel 1, the supporting frame 21 is rotatably connected to driving shafts 22 through bearing seats along two sides of the length direction of the rotary barrel 1, each driving shaft 22 is fixedly provided with two driving wheels 23, the two driving wheels 23 on the two driving shafts 22 are in one-to-one correspondence, two annular guide grooves 24 matched with the two pairs of driving wheels 23 are formed in the outer edge of the rotary barrel 1, and a rubber layer 25 is bonded in the annular guide grooves 24 to reduce vibration and abrasion generated when the rotary barrel 1 rotates. Fixedly connected with two driving motor 20 that are connected with drive shaft 22 respectively on the support frame 21, two driving motor 20 turn to oppositely to when two driving motor 20 during operation, can drive wheel 23 and rotate, the drive wheel 23 on two drive shafts 22 rotates opposite direction this moment, consequently can be fast convenient drive change feed cylinder 1 and roll between two pairs of drive wheels 23.

The working process is as follows: driving motor 20 work, it rotates to drive all commentaries on classics feed cylinder 1, the operator inputs grain to in the feed end of the most inboard commentaries on classics feed cylinder 1 this moment, grain gets into under the drive of supplementary piece 13 and changes feed cylinder 1 rapidly in, then the drive of dialling tablet 11 is slow moves along the snakelike channel between all commentaries on classics feed cylinder 1 down, and meanwhile, the operator is followed the discharge gate drum of the most outside commentaries on classics feed cylinder 1 and is gone into hot-blastly, hot-blastly flow against the flow direction of grain, discharge up to the feed inlet from the most inboard commentaries on classics feed cylinder 1, hot-blastly can dry grain this moment, and the steam that grain gave out can move and discharge commentaries on classics feed cylinder 1 along the feed end of hot wind commentaries on classics feed cylinder 1, can reduce the possibility that steam.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A counter-flow grain dryer is characterized in that: including changeing feed cylinder (1) and being used for driving changeing feed cylinder (1) pivoted driving piece (2), be equipped with a plurality of tablets (11) of dialling in changeing feed cylinder (1), work as when changeing feed cylinder (1) rotates, grain is followed the feed end of changeing feed cylinder (1) gets into changeing feed cylinder (1) after dialling the drive of tablet (11) and moving to a direction to set up this direction into forward, the discharge gate end drum of changeing feed cylinder (1) goes into reverse hot-blast.

2. the counter degrees ~ flow grain dryer according to claim 1, wherein the material stirring sheet (11) is perpendicular to the inner wall of the material rotating cylinder (1), and the included angle between the material stirring sheet (11) and the horizontal line is set to be 30 degrees ~ 60 degrees.

3. The counter flow type grain dryer of claim 1, wherein: and a folded piece (12) forming an angle with the stirring piece (11) is arranged at one end of the stirring piece (11) far away from the inner wall of the material stirring barrel (1).

4. The counter flow type grain dryer of claim 3, wherein: the folding pieces (12) are in an acute triangle shape, and the smallest angle of the folding pieces (12) faces to the feeding direction of the grains.

5. The counter flow type grain dryer of claim 4, wherein: the periphery of the material rotating barrel (1) at the feeding end is provided with a plurality of auxiliary pieces (13), and the included angle between each auxiliary piece (13) and the horizontal line is larger than that between each material stirring piece (11) and the horizontal line.

6. The counter flow type grain dryer according to claim 1 or 5, wherein: the material transferring barrels (1) are provided with a plurality of material transferring barrels which are sleeved with each other, gaps are arranged between the material transferring barrels (1), one ends of the two material transferring barrels (1) which are separated from each other are sealed through a sealing annular plate (3), and the other ends of the two material transferring barrels are communicated with each other.

7. The counter flow type grain dryer of claim 6, wherein: the end part of the rotary material barrel (1) is provided with a plurality of threaded holes (31), and the closed annular plate (3) is fixed on the rotary material barrel (1) through bolts (32) matched with the threaded holes (31).

8. The counter flow type grain dryer of claim 7, wherein: the closed ring plate (3) is arranged into an arc shape which is convex towards the direction far away from the material rotating barrel (1).

9. The counter flow type grain dryer of claim 1, wherein: the driving piece (2) is including setting up support frame (21) outside changeing feed cylinder (1), support frame (21) are all rotated along changeing feed cylinder (1) length direction's both sides and are connected with drive shaft (22), be equipped with a plurality of drive wheel (23) on drive shaft (22), drive wheel (23) are inconsistent with the outer wall of changeing feed cylinder (1), drive shaft (22) are through driving motor (20) drive.

10. The counter flow type grain dryer of claim 9, wherein: the outer edge of the material rotating barrel (1) is provided with an annular guide groove (24) matched with the driving wheel (23), and a rubber layer (25) is arranged in the annular guide groove (24).