CN108168282B

CN108168282B - Grain drier

Info

Publication number: CN108168282B
Application number: CN201711377641.9A
Authority: CN
Inventors: 马斌祥
Original assignee: Hunan Jiwa Rice Industry Co ltd
Current assignee: HUNAN JIWA RICE INDUSTRY Co.,Ltd.
Priority date: 2017-12-19
Filing date: 2017-12-19
Publication date: 2020-05-26
Anticipated expiration: 2037-12-19
Also published as: CN108168282A

Abstract

The invention discloses a grain drier, and relates to the technical field of grain processing equipment. The grain drying machine comprises a drying outer cylinder, a drying inner cylinder and a material collecting cylinder, wherein the drying inner cylinder is rotatably connected into the drying outer cylinder, the drying outer cylinder is fixedly connected onto the material collecting cylinder, the drying outer cylinder is of a cylinder structure with an upper opening and a lower opening, a rotating shaft is arranged at the top of the drying inner cylinder and fixedly connected with a motor output shaft through a coupling, a material inlet is further formed in the top of the drying inner cylinder, discharge holes are uniformly distributed in the bottom of the drying inner cylinder, a hot air cavity is formed between the drying inner cylinder and the drying outer cylinder, drying holes communicated with the hot air cavity are formed in the side wall of the drying inner cylinder, the hot air cavity is connected with a hot air blower arranged on the outer wall of the drying outer cylinder through a hot air pipe, a first inclined plate. The grain drying machine provided by the invention has the advantages of high drying efficiency and good drying effect, and can meet the production requirements.

Description

Grain drier

The technical field is as follows:

the invention relates to the technical field of grain processing equipment, in particular to a grain drying machine.

Background art:

grains are life organisms, water is a condition for survival, and the breeding of insects and microorganisms can be induced by the excessive water, so that the grains are easy to generate heat, ferment, deteriorate and have a low germination rate. Taking grains as an example, the moisture content of the grains is 25-30% during harvesting, the moisture content needs to be reduced to 10-15% of safe moisture as soon as possible during storage, and the grains are generally stored for several years. At present, the moisture of the grains is mainly controlled by natural airing or drying in a grain dryer.

The natural drying of grains is easily restricted by the influence of weather, places and the like, and in a main production area of grains, because of large yield and insufficient drying places, the moisture of grains purchased in a grain depot exceeds safe moisture, which is a main factor causing the grains to mildew. In addition, due to natural moisture resistance, the grain liquid in the warehouse needs to be aired regularly, so that the grains can be prevented from mildewing. The existing dryer is mostly large-scale and ultra-large-scale, the fixed mounting is in the grain processing factory building, the energy consumption of the equipment is high, the automation level is low, the investment is large, the peasant dries the grain and must transport the grain to the grain processing factory before drying, and manpower, material resources and cost are increased.

The invention content is as follows:

the technical problem to be solved by the invention is to provide the grain drying machine which is high in drying efficiency, good in drying effect and capable of meeting production requirements.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the invention provides a grain dryer, which comprises a drying outer cylinder, a drying inner cylinder and a material collecting cylinder, wherein the drying inner cylinder is rotatably connected in the drying outer cylinder, the drying outer cylinder is fixedly connected on the material collecting cylinder, the drying outer cylinder is of a cylinder structure with an upper opening and a lower opening, a rotating shaft is arranged at the top of the drying inner cylinder in a penetrating way and is fixedly connected with a motor output shaft through a coupling, a feed inlet is also arranged at the top of the drying inner cylinder, discharge holes are uniformly distributed at the bottom of the drying inner cylinder, a hot air cavity is formed between the drying inner cylinder and the drying outer cylinder, a drying hole communicated with the hot air cavity is formed in the side wall of the drying inner cylinder, the hot air cavity is connected with a hot air blower arranged on the outer wall of the drying outer cylinder through a hot air pipe, a first inclined plate is arranged in the material collecting cylinder, a first, and the inner wall of the material receiving cylinder is electrostatically sprayed with a purifying and adsorbing coating.

Further, the drying outer cylinder is obliquely arranged.

Furthermore, the included angle between the drying outer cylinder and the horizontal direction is 45 degrees.

Further, fixed blocks are arranged on two sides of the drying inner barrel, idler wheels are arranged on the fixed blocks, and sliding grooves matched with the idler wheels are formed in the circumferential surface of the inner wall of the drying outer barrel.

Furthermore, the dust removal device comprises a dust removal pipeline, a fan and a dust collection bag, the dust removal pipeline is communicated with the inner cavity of the material receiving barrel, the fan is arranged in the dust removal pipeline, and the tail part of the dust removal pipeline is communicated with the opening of the dust collection bag.

Further, still include cereal circulation conveying system, including carrying the auger, setting in the backup pad of first hang plate below, being located the air-blower in the backup pad, setting second hang plate and the second bin outlet in the backup pad below, the equipartition has the hole of leaking on the first hang plate, the second bin outlet is located the one end of second hang plate downward sloping, carry auger one end and second bin outlet intercommunication, the other end and feed inlet intercommunication.

Furthermore, the bottom of the material receiving cylinder is provided with a damping seat, and a damping spring is arranged between the material receiving cylinder and the damping seat.

Further, the purification and adsorption coating is prepared from the following raw materials in percentage by mass: 42% of polyimide resin, 15% of alumina, 11% of an antibacterial auxiliary agent, 8% of diatomite, 5% of nano titanium dioxide, 4% of far infrared ceramic powder, 4% of an MCM-41 full-silicon molecular sieve, 2% of carboxymethyl cellulose, 3% of epoxidized soybean oil, 2.5% of magnesium stearate, 2% of SL-646 oily high-gloss soft gloss oil, 0.5% of citric acid, 0.6% of linalool and 0.4% of levo-menthone.

The antibacterial auxiliary agent comprises, by weight, 32 parts of lavender essential oil, 7 parts of nano silver oxide, 5 parts of sodium carboxymethylcellulose, 3 parts of titanate coupling agent, 2 parts of polyethylene wax, 2 parts of simethicone, β -cyclodextrin 270 parts, 30 parts of sodium carbonate and 130 parts of distilled water.

The preparation method of the antibacterial auxiliary agent comprises the steps of adding β -cyclodextrin into a reaction kettle, adding distilled water, stirring uniformly, slowly dropwise adding lavender essential oil, sequentially adding sodium carbonate, nano silver oxide, sodium carboxymethyl cellulose, titanate coupling agent, polyethylene wax and dimethyl silicone oil, stirring uniformly at normal temperature after adding, concentrating under reduced pressure until no moisture is evaporated, drying in an aseptic drier, ball-milling and crushing, and sieving with a 300-mesh sieve.

The purifying and adsorbing coating takes heat-resistant and insulating polyimide resin as a main component, and is added with various auxiliaries, binders and antibacterial components, so that the purifying and adsorbing coating has excellent performances of adsorbing impurities and purifying air, after the coating is sprayed on the inner wall of the collecting cylinder, fine dust and particle impurities in dried grains can be adsorbed, nontoxic aromatic odor is released, and the antibacterial capability of the grains is improved.

Compared with the prior art, the invention has the following beneficial effects:

(1) the drying inner barrel is obliquely arranged, so that the descending time of grains is delayed, the drying inner barrel is driven to rotate by matching with a motor, the drying area is enlarged, the grains can be dried in all directions, the drying efficiency is high, the drying effect is good, in addition, the sinking of the grains is further delayed by the discharge hole at the bottom of the drying inner barrel, the drying time of the grains is increased, and the grains are dried more thoroughly.

(2) The grain circulating conveying system can be used for drying again when the dryness of grains does not reach the standard, particularly, the qualified dryness and the unqualified dryness are distinguished through the air blower, the gravity of the qualified dryness is smaller than the wind power of the air blower, the qualified dryness slides downwards along the first inclined plate and is discharged through the first discharge port, the unqualified dryness enters the second inclined plate through the material leakage hole under the action of the gravity, enters the conveying auger through the second discharge port, and enters the drying inner cylinder for drying again under the action of the conveying auger, so that the circulating drying is realized.

(3) The first inclined plate and the second inclined plate are arranged in the grain conveying device, and the grain conveying device can finish grain conveying by using the gravity of the grain without external power, so that resources are saved, and the cost is reduced.

(4) The dust removal device can effectively absorb dust generated in the drying process, and ensures the cleanliness of grains.

(5) The shock absorption seat can effectively relieve the vibration generated in the operation process of the grain drying machine, and improves the operation stability of the machine.

Description of the drawings:

FIG. 1 is a schematic view of the structure of a grain dryer of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

in the figure: 1. drying the outer cylinder; 2. drying the inner cylinder; 3. a material collecting barrel; 4. a rotating shaft; 5. a coupling; 6. a motor; 7. a feed inlet; 8. a discharge hole; 9. a hot air cavity; 10. drying the pores; 11. a hot air pipe; 12. a hot air blower; 13. a first inclined plate; 14. a first discharge port; 15. a dust removal device; 16. a fixed block; 17. a roller; 18. a sliding groove; 19. a dust removal pipeline; 20. a fan; 21. a dust collection bag; 22. conveying the auger; 23. a support plate; 24. a blower; 25. a second inclined plate; 26. a second discharge opening; 27. a material leaking hole; 28. a shock absorbing seat; 29. a shock absorbing spring.

The specific implementation mode is as follows:

in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example 1

As shown in fig. 1 and 2, a grain dryer comprises a drying outer cylinder 1, a drying inner cylinder 2 and a material receiving cylinder 3, wherein the drying inner cylinder 2 is rotatably connected in the drying outer cylinder 1, the drying outer cylinder 1 is fixedly connected on the material receiving cylinder 3, the drying outer cylinder 1 is of a cylinder structure with an upper opening and a lower opening, a rotating shaft 4 is arranged at the top of the drying inner cylinder 2, the rotating shaft 4 is fixedly connected with an output shaft of a motor 6 through a coupler 5, a feed inlet 7 is further formed at the top of the drying inner cylinder 2, discharge holes 8 are uniformly distributed at the bottom of the drying inner cylinder 2, a hot air cavity 9 is formed between the drying inner cylinder 2 and the drying outer cylinder 1, a drying hole 10 communicated with the hot air cavity 9 is formed in the side wall of the drying inner cylinder 2, and the hot. Receive to be equipped with first hang plate 13 in the feed cylinder 3, first discharge gate 14 has been seted up to first hang plate 13 downward sloping one end, first discharge gate 14 top is equipped with dust collector 15, thus, starter motor 6 and air heater 12 during the use, steam passes through in 11 entering hot-blast chamber 9 of hot-blast main, rethread drying hole 10 enters into in the dry inner tube 2, carry out the drying to the cereal in the dry inner tube 2, dry inner tube 2 rotates, it rotates thereupon together to drive cereal, can carry out all-round drying to cereal like this, high drying efficiency, the drying effect is good, in addition, the slope of dry inner tube 2 sets up, the route that cereal descends can be prolonged, the dry time of extension cereal, make the dry more abundant of cereal. 2 bottom discharge openings 8 of dry inner tube, further postpone sinking of cereal, the drying time of cereal has been increased for cereal drying is more thorough, and the cereal that the drying was accomplished passes through discharge opening 8 and enters into to receive in the feed cylinder 3, falls into first hang plate 13, slides down along first hang plate 13, discharges through first bin outlet 14, sets up dust collector 15 simultaneously, can carry out effectual absorption to the dust that produces in the drying process, guarantees the cleanliness of cereal.

Wherein, the slope of dry urceolus 1 sets up, and the contained angle of dry urceolus 1 and horizontal direction is 45 degrees, and the speed of gliding can be guaranteed to such angle, guarantees the drying that cereal can enough time simultaneously.

Wherein, the drying inner tube 2 both sides are equipped with fixed block 16, are provided with gyro wheel 17 on the fixed block 16, offer the sliding tray 18 with gyro wheel 17 matched with on the global of drying outer tube 1 inner wall, through the cooperation of gyro wheel 17 and sliding tray 18 for drying inner tube 2 pivoted is more steady.

Wherein, dust collector 15 includes dust removal pipeline 19, fan 20 and dust bag 21, and dust removal pipeline 19 communicates with receipts feed cylinder 3 inner chamber, and fan 20 sets up in dust removal pipeline 19, and the afterbody of dust removal pipeline 19 communicates with the opening part of dust bag 21, through dust collector 15, to the dust that produces in the drying process, through dust removal pipeline 19 with the dust absorption in the dust bag 21 to guarantee the cleanliness of cereal.

Wherein, the grain circulating and conveying system comprises a conveying auger 22, a support plate 23 arranged below the first inclined plate 13, an air blower 24 arranged on the support plate 23, a second inclined plate 25 and a second discharge port 26 arranged below the support plate 23, wherein the first inclined plate 13 is uniformly provided with a material leakage hole 27, the second discharge port 26 is arranged at one end of the second inclined plate 25 which is inclined downwards, one end of the conveying auger 22 is communicated with the second discharge port 26, and the other end is communicated with the feed inlet 7, so that the grain dryness which is not up to standard can be dried again, the qualified dryness and the unqualified dryness can be distinguished through the air blower 24, the dryness is qualified, the self gravity is smaller than the wind power of the air blower 24, the grain can slide downwards along the first inclined plate 13 and is discharged through the first discharge port 14, the dryness is unqualified, and enters the second inclined plate 25 through the material leakage hole 27 under the action of gravity, enters the conveying auger 22 through the second discharge port 26, enters the drying inner cylinder 2 to be dried again under the action of the conveying auger 22, and the aim of circular drying is fulfilled.

The damping seat 28 is arranged at the bottom of the material receiving barrel 3, the damping spring 29 is arranged between the material receiving barrel 3 and the damping seat 28, the damping seat 28 can effectively reduce vibration generated in the operation process of the grain drying machine, and the operation stability of the machine is improved.

Example 2

The difference between the embodiment and the embodiment 1 is that the purification and adsorption coating is prepared from the following raw materials, by mass, 42% of polyimide resin, 15% of aluminum oxide, 11% of an antibacterial auxiliary agent, 8% of diatomite, 5% of nano titanium dioxide, 4% of far infrared ceramic powder, 4% of an MCM-41 full-silicon molecular sieve, 2% of carboxymethyl cellulose, 3% of epoxidized soybean oil, 2.5% of magnesium stearate, 2% of SL-646 oily highlight soft oil, 0.5% of citric acid, 0.6% of linalool and 0.4% of levo-menthone, wherein the antibacterial auxiliary agent comprises, by weight, 32 parts of lavender essential oil, 7 parts of nano silver oxide, 5 parts of sodium carboxymethyl cellulose, 3 parts of a titanate coupling agent, 2 parts of polyethylene wax, 2 parts of dimethyl silicone oil, 270 parts of β -cyclodextrin, 30 parts of sodium carbonate and 130 parts of distilled water.

The preparation method of the antibacterial auxiliary agent comprises the steps of adding β -cyclodextrin into a reaction kettle, adding distilled water, stirring uniformly, slowly dropwise adding lavender essential oil, sequentially adding sodium carbonate, nano silver oxide, sodium carboxymethyl cellulose, titanate coupling agent, polyethylene wax and dimethyl silicone oil, stirring uniformly at normal temperature after adding, concentrating under reduced pressure until no moisture is evaporated, drying in a sterile dryer, ball-milling and crushing, and sieving with a 300-mesh sieve.

The purifying and adsorbing coating has excellent performance of adsorbing impurities and purifying air, and after the coating is sprayed on the inner wall of the collecting cylinder, fine dust and particle impurities in dried grains can be adsorbed, non-toxic aromatic smell is released, and the antibacterial capability of the grains is improved.

And (3) performance testing: the performance tests of the purification and adsorption coating prepared in this example and the commercially available antibacterial coating were performed, and the specific test results are shown in the following table:

test items	Purification adsorption coating	Commercial antimicrobial coatings
			Impact resistance (KJ/m)²)	9.4	7.5
Coefficient of friction	0.27	0.35
			Escherichia coli inhibitory rate (%)	99.4	82.7
Staphylococcus aureus inhibitory rate (%)	99.6	83.4

As can be seen from the table above, the purification and adsorption coating of the embodiment has excellent impact resistance, and has a better antibacterial rate to Escherichia coli and Staphylococcus aureus than the commercially available antibacterial coatings, and after the coating is sprayed on the inner wall of the material receiving cylinder, the purification and adsorption coating can adsorb fine dust and particle impurities in dried grains, release non-toxic aromatic odor and improve the antibacterial ability of the grains.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A grain dryer, characterized by: comprises a drying outer cylinder (1), a drying inner cylinder (2) and a material receiving cylinder (3), wherein the drying inner cylinder (2) is rotatably connected in the drying outer cylinder (1), the drying outer cylinder (1) is fixedly connected on the material receiving cylinder (3), the drying outer cylinder (1) is of an upper-lower opening cylinder structure, a rotating shaft (4) is penetrated at the top of the drying inner cylinder (2), the rotating shaft (4) is fixedly connected with an output shaft of a motor (6) through a shaft coupling (5), the top of the drying inner cylinder (2) is also provided with a feed inlet (7), discharge holes (8) are uniformly distributed at the bottom of the drying inner cylinder (2), a hot air cavity (9) is formed between the drying inner cylinder (2) and the drying outer cylinder (1), a drying hole (10) communicated with the hot air cavity (9) is formed in the side wall of the drying inner cylinder (2), and the hot air cavity (9) is connected with a hot air blower (12) arranged on the outer wall (1, a first inclined plate (13) is arranged in the material receiving barrel (3), a first discharge port (14) is formed in one end, inclined downwards, of the first inclined plate (13), a dust removal device (15) is arranged above the first discharge port (14), and a purification adsorption coating is sprayed on the inner wall of the material receiving barrel (3) in an electrostatic manner;

the purification adsorption coating is prepared from the following raw materials in percentage by mass: 42% of polyimide resin, 15% of alumina, 11% of an antibacterial auxiliary agent, 8% of diatomite, 5% of nano titanium dioxide, 4% of far infrared ceramic powder, 4% of an MCM-41 full-silicon molecular sieve, 2% of carboxymethyl cellulose, 3% of epoxidized soybean oil, 2.5% of magnesium stearate, 2% of SL-646 oily high-gloss soft gloss oil, 0.5% of citric acid, 0.6% of linalool and 0.4% of levo-menthone;

the antibacterial auxiliary agent comprises the following components, by weight, 32 parts of lavender essential oil, 7 parts of nano silver oxide, 5 parts of sodium carboxymethylcellulose, 3 parts of titanate coupling agent, 2 parts of polyethylene wax, 2 parts of simethicone, β -cyclodextrin 270 parts, 30 parts of sodium carbonate and 130 parts of distilled water;

2. The grain dryer of claim 1, wherein: the drying outer cylinder (1) is obliquely arranged.

3. The grain dryer of claim 2, wherein: and the included angle between the drying outer cylinder (1) and the horizontal direction is 45 degrees.

4. The grain dryer of claim 1, wherein: fixed blocks (16) are arranged on two sides of the drying inner barrel (2), idler wheels (17) are arranged on the fixed blocks (16), and sliding grooves (18) matched with the idler wheels (17) are formed in the circumferential surface of the inner wall of the drying outer barrel (1).

5. The grain dryer of claim 1, wherein: dust collector (15) are including dust removal pipeline (19), fan (20) and dust bag (21), dust removal pipeline (19) and receipts feed cylinder (3) inner chamber intercommunication, fan (20) set up in dust removal pipeline (19), the afterbody of dust removal pipeline (19) and the opening part intercommunication of dust bag (21).

6. The grain dryer of claim 1, wherein: still include cereal circulation conveying system, including carrying auger (22), setting backup pad (23) in first hang plate (13) below, be located air-blower (24) on backup pad (23), set up second hang plate (25) and second bin outlet (26) in backup pad (23) below, the equipartition has hourglass material hole (27) on first hang plate (13), second bin outlet (26) are located the one end of second hang plate (25) downward sloping, carry auger (22) one end and second bin outlet (26) intercommunication, the other end and feed inlet (7) intercommunication.

7. The grain dryer of claim 1, wherein: the shock absorption device is characterized in that a shock absorption seat (28) is arranged at the bottom of the material collection barrel (3), and a shock absorption spring (29) is arranged between the material collection barrel (3) and the shock absorption seat (28).