CN109520221A - A kind of drying system of baking agricultural products - Google Patents
A kind of drying system of baking agricultural products Download PDFInfo
- Publication number
- CN109520221A CN109520221A CN201811180251.7A CN201811180251A CN109520221A CN 109520221 A CN109520221 A CN 109520221A CN 201811180251 A CN201811180251 A CN 201811180251A CN 109520221 A CN109520221 A CN 109520221A
- Authority
- CN
- China
- Prior art keywords
- bakery
- baking
- agricultural products
- pipeline
- combustion furnace
- 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.)
- Pending
Links
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
- F26B9/066—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- 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
- F26B21/003—Supply-air or gas filters
-
- 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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- 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
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of drying systems of baking agricultural products, including heating plant and bakery, it is characterised in that: the heating plant includes combustion furnace, hot air cavity, fuel-feed mechanism, admission gear, ventilating mechanism, heat dissipation pipeline, the smoke purification mechanism being connected to ventilating mechanism；Bakery is set to above heat dissipation pipeline.The present invention be by hot-air to agricultural product heating and air flowing double action to agricultural product carry out it is drying, substantially increase drying efficiency；It is passed through in bakery again after the used hot-air circulating-heating of benefit, the waste heat of recyclegas is fully used；The flue gas that fuel generates is purified by gas cleaning pond, and the flue gas of purification is also passed into bakery, on the one hand avoids flue gas direct emission and causes environmental pollution, and the heat of another aspect flue gas is also utilized, and is further improved the thermal efficiency, is reduced energy consumption.
Description
Technical field
The present invention relates to a kind of drying systems of baking, and in particular to a kind of drying system of the baking of agricultural product.
Background technique
The generally existing water content of agricultural product is big, seasonal strong, is easy to rot, and needs post-production, and output is big etc.
The characteristics of.Drying baking agricultural products are to deviate from certain water by drying means in order to which long term storage is without destroying its nutritional ingredient
Point, the concentration of solable matter is increased to the degree that microorganism is difficult to be utilized.
Currently, that there are heat loss is big for the drying equipment of the baking of agricultural product, the thermal efficiency is low, and the high problem of energy consumption utilizes fuel
The equipment of heating the problem of there is also smoke pollutions.Therefore, it is necessary to it is high to design a kind of thermal efficiency, it is fast to toast drying speed, ring
Protect the free of contamination drying system of baking.
Summary of the invention
The present invention toasts that drying speed is fast in view of the above-mentioned problems, to design a kind of thermal efficiency high, and environment friendly and pollution-free baking is dry
System processed.
The present invention is achieved through the following technical solutions: a kind of drying system of baking agricultural products, including heating plant and
Bakery, it is characterised in that:
The heating plant includes combustion furnace, the hot air cavity being set to above combustion furnace, the fuel-feed being set on combustion furnace
Mechanism, the admission gear being set in hot air cavity, the ventilating mechanism being set in hot air cavity, the heat-dissipating pipe being connected to ventilating mechanism
Line, the smoke purification mechanism being set on combustion furnace；
The bakery is set to above the heat dissipation pipeline, and the bottom of bakery is provided with several heat radiation through-holes；
The bakery is equipped with hot gas cycle pipeline, is connected to inside hot gas cycle pipeline one end and bakery, the other end
It is connected to the admission gear in the hot air cavity；
The combustion furnace includes gas chamber and combustion chamber, is separated between the gas chamber and combustion chamber by partition, net is provided among partition
Hole, gas chamber sidewall are equipped with one-way air inlet mechanism, are equipped with igniter in gas chamber, the igniter is located at the underface of partition mesh；
The admission gear includes air inlet and suction ventilator, and the suction ventilator is connected to hot gas cycle pipeline；
The ventilating mechanism includes blow vent and ventilation pipe, and the ventilation pipe is connected to the heat dissipation pipeline；
The heat dissipation pipeline is coiling pipeline, is provided with several air dispelling holes thereon；
The heat dissipation pipeline is layed in underground, and heat dissipation pipeline has heat-reflecting layer and thermal insulation layer；
The smoke purification mechanism includes smoke exhaust pipe and gas cleaning pond, and smoke exhaust pipe one end is connected to combustion furnace, one end and flue gas
Clarifier-tank connection；
Gas cleaning pond top opening, the opening are connected with flue gas recirculation pipeline, flue gas recirculation pipeline and snorkel
Road connection.
Further, the fuel-feed mechanism includes the feed pipe being obliquely installed in burning furnace sidewall, is set to
First feeding gate of feed pipe upper end, the second feeding gate for being set to feed pipe Yu combustion furnace junction.
Further, first feeding gate upper end is flexibly connected with feed pipe wall.
Further, second feeding gate upper end is flexibly connected with burning furnace sidewall.
Further, the junction of the hot gas cycle pipeline and bakery is equipped with dust-filtering plate, the dust-filtering
Plate is detachable.
Further, several groups baking rack is equipped in the bakery, baking rack is equipped with parcel shelf, and the parcel shelf can
Disassembly.
Further, the baking rack is removable.
Further, the parcel shelf is reticular structure.
Further, induced-draft fan is equipped between the smoke exhaust pipe and combustion chamber.
Further, the gas cleaning pond is provided with water.
Compared with prior art, the invention has the following advantages:
1, the present invention is to heat air, and hot-air is led in bakery, is added by the flowing of hot-air to agricultural product
Heat, to realize that baking is drying, this mode is by heating two kinds of the flowing effects with air to drying, the institute of agricultural product progress
To substantially increase drying efficiency.
2, the present invention will be passed through in bakery again after the used hot-air circulating-heating of benefit, be added to the waste heat of recyclegas
To make full use of, the thermal efficiency is substantially increased, reduces energy consumption.
3, heat dissipation pipeline is layed in underground by the present invention, and heat dissipation pipeline has heat-reflecting layer and thermal insulation layer, can effectively hinder
Only downward radiation is conducted heat.
4, the flue gas of fuel combustion is passed through in gas cleaning pond by the present invention purifies, later again by cleaned flue gas
It is also passed into bakery as drying thermal medium is toasted, on the one hand avoids flue gas direct emission and cause environmental pollution, it is another
The heat of aspect flue gas is also utilized, and the thermal efficiency is further improved, and reduces energy consumption.
5, fuel-feed mechanism of the present invention be equipped with twice feeding gate, feeding gate upper end respectively with feed pipe and burn furnace side
Wall is flexibly connected, and under natural conditions, twice feeding gate is closed perpendicular to ground and by feed pipe and combustion furnace, when charging, combustion
Material successively pushes the first feeding gate and the second feeding gate open, and under gravity, twice feeding gate is successively closed again, thus
It is to be in close state that two fan feeding gates, which always have a fan, when charging, and the flue gas generated when to guaranteeing fuel combustion will not be from charging
Door discharge.
6, the present invention is equipped with dust-filtering plate in the junction of hot gas cycle pipeline and bakery, can be to baking agricultural products mistake
The dust generated in journey is effectively filtered, while the dust-filtering plate is detachable, and easy to clean and replacement ensure that agricultural product
Health.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the present invention.
Fig. 2 is combustion furnace schematic diagram of the present invention.
Fig. 3 is bakery bottom schematic view of the present invention.
Wherein, 1- heating plant, 2- bakery, 3- combustion furnace, 4- hot air cavity, 5- fuel-feed mechanism, 6- admission gear,
7- ventilating mechanism, 8- heat dissipation pipeline, 9- smoke purification mechanism, 10- heat radiation through-hole, 11- hot gas cycle pipeline, 12- suction ventilator,
13- blow vent, 14- ventilation pipe, 15- smoke exhaust pipe, 16- gas cleaning pond, 17- dust-filtering plate, 18- baking rack, 19- smoke evacuation
Machine, 20- flue gas recirculation pipeline, 21- heat-reflecting layer, 22- thermal insulation layer, 301- gas chamber, the combustion chamber 302-, 303- partition, 304- are mono-
To admission gear, 305- igniter, 501- feed pipe, the first feeding gate of 502-, the second feeding gate of 503-, 181- parcel shelf.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1-3, a kind of drying system of baking agricultural products, including heating plant 1 and bakery 2, the confession
Thermal 1 include combustion furnace 3, the hot air cavity 4 for being set to the top of combustion furnace 3, the fuel-feed mechanism 5 being set on combustion furnace 3,
The admission gear 6 that is set in hot air cavity 4, the ventilating mechanism 7 being set in hot air cavity 4, the heat-dissipating pipe being connected to ventilating mechanism 7
Line 8, the smoke purification mechanism 9 being set on combustion furnace 3.
The bakery 2 is set to 8 top of heat dissipation pipeline, and the bottom of bakery 2 is provided with several heat radiation through-holes
10。
The bakery 2 is equipped with hot gas cycle pipeline 11, connects inside described 11 one end of hot gas cycle pipeline and bakery 2
Logical, the other end is connected to the admission gear 6 in the hot air cavity 4.
The combustion furnace 3 includes gas chamber 301 and combustion chamber 302, by partition 303 between the gas chamber 301 and combustion chamber 302
It separates, mesh is provided among partition 303,301 side wall of gas chamber is equipped with one-way air inlet mechanism 304, is equipped with igniter in gas chamber 301
305, the igniter 305 is located at the underface of 303 mesh of partition.
The admission gear 6 includes air inlet and suction ventilator 12, and the suction ventilator 12 is connected to hot gas cycle pipeline 11.
The ventilating mechanism 7 includes blow vent 13 and ventilation pipe 14, and the ventilation pipe 14 connects with the heat dissipation pipeline 8
It is logical.
The heat dissipation pipeline 8 is coiling pipeline, is provided with several air dispelling holes thereon.
The heat dissipation pipeline 8 is layed in underground, and heat dissipation pipeline 6 has heat-reflecting layer 21 and thermal insulation layer 22.
The smoke purification mechanism 9 includes smoke exhaust pipe 15 and gas cleaning pond 16, and 15 one end of smoke exhaust pipe and combustion furnace 3 connect
Logical, one end is connected to gas cleaning pond 16.
16 top opening of gas cleaning pond, the opening are connected with flue gas recirculation pipeline 20, flue gas recirculation pipeline
20 are connected to ventilation pipe 14.
In the present embodiment, the fuel-feed mechanism 5 include be obliquely installed on 3 side wall of combustion furnace feed pipe 501,
Be set to the first feeding gate 502 of 501 upper end of feed pipe, be set to the second of feed pipe 501 and 3 junction of combustion furnace into
Bin gate 503.
In the present embodiment, 502 upper end of the first feeding gate is flexibly connected with 501 wall of feed pipe.
In the present embodiment, 503 upper end of the second feeding gate is flexibly connected with 3 side wall of combustion furnace.
In the present embodiment, the junction of the hot gas cycle pipeline 11 and bakery 2 is equipped with dust-filtering plate 17, the powder
Dirt filter plate 17 is detachable.
In the present embodiment, several groups baking rack 18 is equipped in the bakery 2, baking rack 18 is equipped with parcel shelf 181, institute
It is detachable to state parcel shelf 181.
In the present embodiment, the baking rack 18 is removable.
In the present embodiment, the parcel shelf 181 is reticular structure.
In the present embodiment, induced-draft fan 19 is equipped between the smoke exhaust pipe 15 and combustion chamber 302.
In the present embodiment, the gas cleaning pond 16 is provided with water.
In the use of the present invention, first opening bakery 2, baking rack 18 is removed from bakery 2, by agricultural production to be baked
Product are divided on parcel shelf 181, baking rack 18 are then moved into bakery 2, and bakery 2 is shut；
Fuel enters in combustion chamber 302 from feed pipe 501, and igniter 305 lights fuel, consumes gas chamber in fuel combustion process
Oxygen in 301, the air pressure in gas chamber 301 reduce, and outside air then enters in gas chamber 301 from one-way air inlet mechanism 304, to gas
Room 301 is supplemented；
Fuel consumption to a certain extent after, fuel can be added, fuel-feed mechanism 5 of the present invention be equipped with the first feeding gate
502 and second feeding gate 503, twice feeding gate upper end be flexibly connected respectively with feed pipe 501 and 3 side wall of combustion furnace, it is natural
Under state, twice feeding gate is closed perpendicular to ground and by feed pipe 501 and combustion furnace 3, and when charging, fuel is successively by first
Feeding gate 502 and the second feeding gate 503 are pushed open, and under gravity, twice feeding gate is successively closed again, thus in charging
It is to be in close state that two fan feeding gates, which always have a fan, and the flue gas generated when to guaranteeing fuel combustion will not be arranged from feeding gate
Out；
The air in hot air cavity 4 is heated in fuel combustion process, hot-air enters heat dissipation pipeline by ventilation pipe 14
8, heat dissipation pipeline has heat-reflecting layer 21 and thermal insulation layer 22, effectively downward radiation can be prevented to conduct heat, and improves heat utilization efficiency；
It is provided with air dispelling hole on the heat dissipation pipeline 8 of coiling, hot-air sheds from air dispelling hole, and passes through the hot spoke of 2 bottom of bakery
Through-hole 10 is penetrated to enter in bakery 2；Hot-air flows in bakery 2, heats to agricultural product, and the moisture that will be given out
It takes away；
Under the action of suction ventilator 12, hot-air is again introduced into hot air cavity 4 further through hot gas cycle pipeline 11, is added again
Then heat enters in bakery 2 through ventilation pipe 14, heat dissipation pipeline 8 again, the waste heat of recyclegas is fully used, greatly
The thermal efficiency is improved greatly, reduces energy consumption；
The flue gas that fuel combustion generates is passed through in gas cleaning pond 16 through 19 machines of smoke evacuation and smoke exhaust pipe 15, is obtained under the action of water
Purification, purified flue gas enter in ventilation pipe 14 further through flue gas recirculation pipeline 20, on the one hand avoid flue gas and directly arrange
It puts and causes environmental pollution, the heat of another aspect flue gas is also utilized, and the thermal efficiency is further improved, and reduces energy consumption；
The junction of hot gas cycle pipeline 11 and bakery 2 is equipped with dust-filtering plate 17, and the air in bakery 2 is entering hot gas
The dust generated during baking agricultural products is effectively filtered before circulating line 11.
Claims (10)
1. a kind of drying system of baking agricultural products, including heating plant (1) and bakery (2), it is characterised in that:
The heating plant (1) includes combustion furnace (3), the hot air cavity (4) being set to above combustion furnace (3), is set to combustion furnace
(3) fuel-feed mechanism (5) on, the admission gear (6) being set on hot air cavity (4), the ventilation being set on hot air cavity (4)
Mechanism (7), the heat dissipation pipeline (8) being connected to ventilating mechanism (7), the smoke purification mechanism (9) being set on combustion furnace (3)；
The bakery (2) is set to above the heat dissipation pipeline (8), and it is logical that the bottom of bakery (2) is provided with several heat radiations
Hole (10)；
The bakery (2) is equipped with hot gas cycle pipeline (11), in described hot gas cycle pipeline (11) one end and bakery (2)
Portion's connection, the other end are connected to the admission gear (6) on the hot air cavity (4)；
The combustion furnace (3) includes gas chamber (301) and combustion chamber (302), between the gas chamber (301) and combustion chamber (302) by
Partition (303) separates, and mesh is provided among partition (303), and gas chamber (301) side wall is equipped with one-way air inlet mechanism (304), gas chamber
(301) igniter (305) are equipped in, the igniter (305) is located at the underface of partition (303) mesh；
The admission gear (6) includes air inlet and suction ventilator (12), and the suction ventilator (12) and hot gas cycle pipeline (11) are even
It is logical；
The ventilating mechanism (7) includes blow vent (13) and ventilation pipe (14), the ventilation pipe (14) and the heat-dissipating pipe
Line (8) connection；
The heat dissipation pipeline (8) is coiling pipeline, is provided with several air dispelling holes thereon；
The heat dissipation pipeline (8) is layed in underground, and heat dissipation pipeline (8) has heat-reflecting layer (21) and thermal insulation layer (22)；
The smoke purification mechanism (9) includes smoke exhaust pipe (15) and gas cleaning pond (16), smoke exhaust pipe (15) one end and combustion furnace
(3) it is connected to, one end is connected to gas cleaning pond (16)；
Gas cleaning pond (16) top opening, opening are connected with flue gas recirculation pipeline (20), flue gas recirculation pipeline (20)
It is connected to ventilation pipe (14).
2. a kind of drying system of baking agricultural products as described in claim 1, it is characterised in that: the fuel-feed mechanism (5)
Including be obliquely installed on combustion furnace (3) side wall feed pipe (501), be set to the first of feed pipe (501) upper end into
Bin gate (502), the second feeding gate (503) for being set to feed pipe (501) Yu combustion furnace (3) junction.
3. a kind of drying system of baking agricultural products as claimed in claim 2, it is characterised in that: first feeding gate (502)
Upper end is flexibly connected with feed pipe (501) wall.
4. a kind of drying system of baking agricultural products as claimed in claim 2, it is characterised in that: second feeding gate (503)
Upper end is flexibly connected with combustion furnace (3) side wall.
5. a kind of drying system of baking agricultural products as described in claim 1, it is characterised in that: the hot gas cycle pipeline (11)
Dust-filtering plate (17) are equipped with the junction of bakery (2), the dust-filtering plate (17) is detachable.
6. a kind of drying system of baking agricultural products as described in claim 1, it is characterised in that: be equipped in the bakery (2)
Several groups baking rack (18), baking rack (18) are equipped with parcel shelf (181), and the parcel shelf (181) is detachable.
7. a kind of drying system of baking agricultural products as claimed in claim 6, it is characterised in that: the baking rack (18) is removable
It is dynamic.
8. a kind of drying system of baking agricultural products as claimed in claim 6, it is characterised in that: the parcel shelf (181) is net
Shape structure.
9. a kind of drying system of baking agricultural products as described in claim 1, it is characterised in that: the smoke exhaust pipe (15) and burning
Induced-draft fan (19) are equipped between room (302).
10. the drying system of a kind of baking agricultural products as described in any one of claims 1-9, it is characterised in that: the flue gas
Clarifier-tank (16) is provided with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180251.7A CN109520221A (en) | 2018-10-10 | 2018-10-10 | A kind of drying system of baking agricultural products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180251.7A CN109520221A (en) | 2018-10-10 | 2018-10-10 | A kind of drying system of baking agricultural products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109520221A true CN109520221A (en) | 2019-03-26 |
Family
ID=65769996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811180251.7A Pending CN109520221A (en) | 2018-10-10 | 2018-10-10 | A kind of drying system of baking agricultural products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109520221A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040501A (en) * | 2019-04-22 | 2019-07-23 | 重庆城市管理职业学院 | The drying system of baking agricultural products |
| CN111772500A (en) * | 2020-07-16 | 2020-10-16 | 兰钰识 | Healthy barbecue device |
| CN114521583A (en) * | 2022-02-25 | 2022-05-24 | 许超 | Agricultural product drying process |
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| CN2906497Y (en) * | 2006-02-20 | 2007-05-30 | 钮了根 | Circulating hot-blast furnace drying device |
| JP3902644B1 (en) * | 2006-04-20 | 2007-04-11 | マルショウ技研 株式会社 | Continuous solar sawdust dryer |
| US8011113B2 (en) * | 2006-06-22 | 2011-09-06 | Nexter Munitions | Hot gas generator and drying or dehydration facility implementing such a generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040501A (en) * | 2019-04-22 | 2019-07-23 | 重庆城市管理职业学院 | The drying system of baking agricultural products |
| CN110040501B (en) * | 2019-04-22 | 2021-01-29 | 重庆城市管理职业学院 | Agricultural product baking and drying system |
| CN111772500A (en) * | 2020-07-16 | 2020-10-16 | 兰钰识 | Healthy barbecue device |
| CN114521583A (en) * | 2022-02-25 | 2022-05-24 | 许超 | Agricultural product drying process |
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Application publication date: 20190326 |