CN112414030B - Hot air circulation type grain drying machine - Google Patents
Hot air circulation type grain drying machine Download PDFInfo
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- CN112414030B CN112414030B CN202011338248.0A CN202011338248A CN112414030B CN 112414030 B CN112414030 B CN 112414030B CN 202011338248 A CN202011338248 A CN 202011338248A CN 112414030 B CN112414030 B CN 112414030B
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- 238000001035 drying Methods 0.000 title claims abstract description 100
- 230000007246 mechanism Effects 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 9
- 235000013339 cereals Nutrition 0.000 description 58
- 238000009826 distribution Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- 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
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a hot air circulation type grain drying machine, which comprises a box body and a hot air furnace, wherein a drying chamber is arranged in the box body, an air inlet channel is arranged in the middle of the drying chamber, air outlet channels are arranged on two sides of the drying chamber, an air guide pipe is connected between the air inlet channel and the air outlet channel, an air outlet of the hot air furnace is connected with the air inlet channel, an air inlet of the hot air furnace is connected with the air outlet channel, the air inlet channel is provided with an air inlet, the air inlet is provided with an air inlet valve, the air outlet channel is provided with an air outlet, and the air outlet is provided with an air outlet valve.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a hot air circulation type grain dryer.
Background
With the continuous increase of the annual yield of grains in China and the increase of the investment of the country on grain drying equipment, more and more large, medium and small grain drying equipment are built. The grain dryer mainly comprises a batch type circulating grain dryer and a tower type continuous dryer, wherein the batch type circulating grain dryer is mainly applied to northern regions due to limited rainfall and large workload, and the batch type circulating grain dryer is generally applied to southern regions due to large water-reducing capacity.
The heat of the existing batch type circulating grain dryer is mainly open, namely the heat generated by a hot blast stove passes through a drying section of the dryer and is finally discharged into a dedusting room or the atmosphere through an exhaust fan, the hot air utilization efficiency is low in the mode, the grain circulation frequency is high, and the energy consumption is high.
Disclosure of Invention
In order to solve the technical problems, the invention provides a hot air circulation type grain drying machine which can make the temperature distribution in a drying chamber more uniform, and can recycle hot air and improve the utilization rate of the hot air.
The invention provides a hot air circulation type grain drying machine which comprises a box body and a hot air furnace, wherein a drying chamber is arranged in the box body, an air inlet channel is arranged in the middle of the drying chamber, air outlet channels are arranged on two sides of the drying chamber, an air guide pipe is connected between the air inlet channel and the air outlet channel, an air outlet of the hot air furnace is connected with the air inlet channel, an air inlet of the hot air furnace is connected with the air outlet channel, the air inlet channel is provided with an air inlet, the air inlet is provided with an air inlet valve, the air outlet channel is provided with an air outlet, and the air outlet is provided with an air outlet valve.
Preferably, a temperature sensor is further arranged in the box body.
Preferably, the air outlet channel is further provided with a moisture exhaust port, and the moisture exhaust port is provided with a moisture exhaust valve.
Preferably, a humidity sensor is further arranged in the box body.
Preferably, the drying chamber is divided into a plurality of drying zones from top to bottom, each drying zone is provided with an air adjusting opening, and the air adjusting openings are provided with air adjusting valves.
Preferably, each drying area is further provided with a material level sensor.
Preferably, the hot blast stove is connected with a blower.
Preferably, heated air circulation type grain drying machine still includes hoist mechanism, row's grain mechanism and conveying mechanism, hoist mechanism is used for sending into cereal the box, row's grain mechanism is used for discharging cereal in the drying chamber, conveying mechanism is used for with drying chamber exhaust cereal is sent into again hoist mechanism.
The invention provides a hot air circulation type grain drying machine, which comprises a box body and a hot air furnace, wherein a drying chamber is arranged in the box body, the middle part of the drying chamber is provided with an air inlet channel, two sides of the drying chamber are provided with air outlet channels, an air guide pipe is connected between the air inlet channel and the air outlet channel, an air outlet of the hot air furnace is connected with the air inlet channel, an air inlet of the hot air furnace is connected with the air outlet channel, the air inlet channel is provided with an air inlet valve, the air outlet channel is provided with an air outlet, the air outlet is provided with an air outlet valve, the air outlet channel is arranged at the two sides of the drying chamber, when the air inlet valve and the air outlet valve are opened, hot air generated by the hot air furnace can enter from the middle part and the two sides of the drying chamber, so that the temperature distribution in the drying chamber is more uniform, meanwhile, because the air outlet channel is connected with the air inlet of the hot air furnace, the residual hot air after drying can enter the hot air furnace to be heated again, compared with the prior art, the hot air circulation type grain drying machine provided by the invention can enable the temperature distribution in the drying chamber to be more uniform, and meanwhile, the hot air is recycled, so that the utilization rate of the hot air is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a hot air circulation type grain dryer according to an embodiment of the present invention;
fig. 2 is a side view of fig. 1.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the contents disclosed in the specification, and are not used for limiting the conditions that the present application can implement, so the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical content disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
Embodiments of the present invention are written in a progressive manner.
Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a hot air circulation type grain dryer according to an embodiment of the present invention; fig. 2 is a side view of fig. 1.
The embodiment of the invention provides a hot air circulation type grain drying machine which comprises a box body 1 and a hot air furnace 2, wherein a drying chamber 3 is arranged in the box body 1, an air inlet channel 31 is arranged in the middle of the drying chamber 3, air outlet channels 32 are arranged on two sides of the drying chamber, an air guide pipe 33 is connected between the air inlet channel 32 and the air outlet channel 32, an air outlet of the hot air furnace 2 is connected with the air inlet channel 31, an air inlet of the hot air furnace 2 is connected with the air outlet channel 32, the air inlet channel 31 is provided with an air inlet 311, the air inlet 311 is provided with an air inlet valve 312, the air outlet channel 32 is provided with an air outlet 321, and the air outlet 321 is provided with an air outlet valve 322.
In the embodiment of the invention, the drying chamber 3 is arranged in the box body 1, when the air inlet valve 312 and the air outlet valve 322 are opened, hot air provided by the hot-blast stove 2 can be introduced from the air inlet channel 31 in the middle of the drying chamber 3, is shunted to two sides of the drying chamber 3 through the air guide pipe 33, and then flows out from the air outlet channels 32 on two sides of the drying chamber 3 to dry grains in the drying chamber 3, wherein, because the air inlet channel 31 is arranged in the middle of the drying chamber 3, and the air outlet channels 32 are arranged on two sides of the drying chamber 3, hot air flow can enter from the middle of the drying chamber 3 and flow out from two sides, so that the temperature distribution in the drying chamber 3 is more uniform, meanwhile, because the air outlet channel 32 is connected with the air inlet of the hot-blast stove 2, the residual hot air after drying can enter the hot-blast stove 2 to be heated again, so as to recycle the hot air, compared with the prior art, the hot-air circulation type grain drying machine provided by the invention, can make the temperature distribution in the drying chamber 3 more even, carry out cyclic utilization to hot-blast simultaneously, improve hot-blast utilization ratio.
In a preferred embodiment of the present invention, a temperature sensor 4 is further disposed in the case 1. In this embodiment, can acquire the real-time temperature in the drying chamber 3 through temperature sensor 4, wherein, the real-time temperature in the drying chamber 3 who acquires includes the real-time temperature of hot-blast real-time temperature of drying chamber 3 inner loop and the real-time temperature of cereal, according to with the deviation between the hot-blast temperature of drying chamber 3 inner loop and the preset temperature of cereal, can correspondingly adjust the aperture size of air inlet valve 312 and air outlet valve 322 to adjust the temperature of drying chamber 3, improve the drying efficiency of cereal.
Further, in the above embodiment, the air outlet channel 32 is further provided with a moisture exhausting port 323, and the moisture exhausting port 323 is provided with a moisture exhausting valve 324. In this embodiment, when the humidity in the drying chamber 3 reaches a certain level, the moisture discharge valve 124 may be opened to discharge the moisture, and the remaining hot air enters the hot blast stove 2 to be reheated.
Furthermore, in the above embodiment, a humidity sensor 5 is further disposed in the box 1.
It should be noted that, when the grains are dried, if the drying time is too long, the grains are easy to crack, and the cracking rate is too high, so a strict tempering ratio must be designed, generally 5-8: 1, the drying efficiency is slow, and the grains are dried in a bin, which usually needs to be circulated for more than 10 times, and the mechanical breakage rate of the grains is increased.
In the embodiment of the invention, the temperature of hot air in the drying chamber 1 is controlled, and the humidity in the drying chamber 1 is also controlled, so that circulating hot air in the drying chamber 1 keeps certain humidity, and cracks of grains can be prevented in the drying process, therefore, the drying area in the drying chamber 1 can be designed to be longer, the grain drying time is prolonged, the grains are kept at higher temperature for a long time in the drying process, the dehydration rate of the grains is favorably improved, particularly the migration rate of bound water in the grains is improved, the drying efficiency of the grains is improved, and the fast and good drying effect of the grains can be achieved. Particularly, can acquire the real-time humidity in the drying chamber 3 through humidity transducer 5, wherein, the real-time humidity in the drying chamber 3 who acquires mainly indicates the hot-blast real-time humidity of drying chamber 3 inner loop, according to with the hot-blast deviation between the humidity of presetting of drying chamber 3 inner loop, can the corresponding aperture size of adjusting hydrofuge valve 324 to guarantee to have certain humidity in the drying chamber 3, prevent the production of cereal crackle in drying process, and then reduce the waist-bursting rate of cereal.
As a preferred embodiment of the present invention, the drying chamber 3 is divided into a plurality of drying zones from top to bottom, each drying zone is provided with an air adjusting opening 34, and the air adjusting opening 34 is provided with an air adjusting valve 341. In this embodiment, when only having a small amount of cereal stoving operation, the cereal that is located the drying zone on upper strata and carries out the stoving operation less even does not have cereal, at this moment, can turn down or close the air regulating valve 341 in corresponding drying zone to reduce the hot air volume that lets in the drying zone on upper strata, stop even to let in hot-blast to the drying zone on upper strata, only utilize the bottom drying zone to carry out cereal stoving operation, solve the demand of a small amount of cereal stoving operation.
Further, in the above embodiment, each drying zone is further provided with a material level sensor 35. In this embodiment, can detect the cereal material level in every drying zone through level sensor 35, can confirm the required hot-blast target value of each drying zone according to the cereal material level in each drying zone, adjust the aperture size of the air regulating valve 341 of each drying zone respectively, let in corresponding hot-blast volume to each drying zone to improve hot-blast utilization ratio.
As a preferred embodiment of the invention, a blower 6 is connected to the hot blast stove 2. In this embodiment, hot air generated by the hot-blast stove 2 enters the drying chamber 3 in the box body 1 through the blower 6.
As a preferred embodiment of the present invention, the hot air circulation type grain dryer further includes a lifting mechanism 7, a grain discharging mechanism 8, and a conveying mechanism 9, wherein the lifting mechanism 7 is used for feeding grains into the cabinet 1, the grain discharging mechanism 8 is used for discharging grains in the drying chamber 3, and the conveying mechanism 9 is used for feeding grains discharged from the drying chamber 3 into the lifting mechanism 7 again. Specifically, hoist mechanism 7 can select for use the lifting machine, and grain discharging mechanism 8 includes grain discharging bucket and grain discharging wheel, and conveying mechanism 9 can select for use and carry flow tube or band conveyer.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A hot air circulation type grain drying machine is characterized by comprising a box body and a hot air furnace, wherein a drying chamber is arranged in the box body, an air inlet channel is arranged in the middle of the drying chamber, air outlet channels are arranged on two sides of the drying chamber, an air guide pipe is connected between the air inlet channel and the air outlet channel, an air outlet of the hot air furnace is connected with the air inlet channel, an air inlet of the hot air furnace is connected with the air outlet channel, the air inlet channel is provided with an air inlet, the air inlet is provided with an air inlet valve, the air outlet channel is provided with an air outlet, the air outlet is provided with an air outlet valve,
the drying chamber is divided into a plurality of drying areas from top to bottom, each drying area is provided with an air adjusting opening, and the air adjusting openings are provided with air adjusting valves.
2. The hot air circulation type grain dryer according to claim 1, wherein a temperature sensor is further provided in the cabinet.
3. The hot air circulation type grain dryer according to claim 2, wherein the air outlet passage is further provided with a moisture discharge port provided with a moisture discharge valve.
4. The hot air circulation type grain dryer according to claim 3, wherein a humidity sensor is further provided in the cabinet.
5. The hot air circulation type grain dryer according to claim 1, wherein each of the drying zones is further provided with a level sensor.
6. The hot air circulation type grain dryer according to claim 1, wherein a blower is connected to the hot air furnace.
7. The hot air circulation type grain dryer according to claim 1, further comprising a lifting mechanism for feeding grains into the cabinet, a grain discharging mechanism for discharging grains in the drying chamber, and a conveying mechanism for feeding grains discharged from the drying chamber into the lifting mechanism again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011338248.0A CN112414030B (en) | 2020-11-25 | 2020-11-25 | Hot air circulation type grain drying machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011338248.0A CN112414030B (en) | 2020-11-25 | 2020-11-25 | Hot air circulation type grain drying machine |
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| CN112414030A CN112414030A (en) | 2021-02-26 |
| CN112414030B true CN112414030B (en) | 2022-07-01 |
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| CN202011338248.0A Active CN112414030B (en) | 2020-11-25 | 2020-11-25 | Hot air circulation type grain drying machine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114152043A (en) * | 2021-12-31 | 2022-03-08 | 湖南省农友机械集团有限公司 | Multifunctional dryer |
| CN114166006A (en) * | 2021-12-31 | 2022-03-11 | 湖南省农友农业装备股份有限公司 | Positive pressure type temperature and humidity control drying system |
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| CN2300244Y (en) * | 1997-05-29 | 1998-12-16 | 吴军港 | Dust-removing selecting and feeding/discharging structure for grain drying machine |
| CN2606316Y (en) * | 2003-03-16 | 2004-03-10 | 商水县福安粮机制造有限公司 | Movable circulatnig grain drier |
| CN103109147B (en) * | 2010-04-22 | 2016-05-04 | 株式会社佐竹 | Grain drying |
| DE102011111971A1 (en) * | 2011-08-31 | 2013-02-28 | Jürgen Mahrwald | Drying food, comprises obtaining thermal energy from sunlight and heating air, passing heated air around food to be dried, dehumidifying cool moist air by air moisture-conducting component, and transforming into pre-heated dry exhaust air |
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Denomination of invention: A kind of hot air circulation grain dryer Effective date of registration: 20230302 Granted publication date: 20220701 Pledgee: China Construction Bank Corporation Shuangfeng Sub-branch Pledgor: HUNAN NONGYOU MACHINERY GROUP Co.,Ltd.|HUNAN NONGYOU SHENGTAI AGRICULTURAL TECHNOLOGY CO.,LTD. Registration number: Y2023980033958 |
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