CN115574545A - Far infrared dryer structure and drying method thereof - Google Patents
Far infrared dryer structure and drying method thereof Download PDFInfo
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- CN115574545A CN115574545A CN202211151330.1A CN202211151330A CN115574545A CN 115574545 A CN115574545 A CN 115574545A CN 202211151330 A CN202211151330 A CN 202211151330A CN 115574545 A CN115574545 A CN 115574545A
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- 238000001035 drying Methods 0.000 title claims abstract description 54
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 33
- 239000011521 glass Substances 0.000 claims description 46
- 230000007246 mechanism Effects 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 2
- 238000007603 infrared drying Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 235000013339 cereals Nutrition 0.000 description 86
- 229910002804 graphite Inorganic materials 0.000 description 18
- 239000010439 graphite Substances 0.000 description 18
- -1 graphite alkene Chemical class 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000005855 radiation Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
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- 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
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- 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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- 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
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of far infrared drying, in particular to a far infrared dryer structure and a drying method thereof, wherein the far infrared dryer structure comprises a reserve part, the bottom of the reserve part is fixedly provided with a drying part, the surface of the drying part is provided with a plurality of ventilation openings, the bottom of the drying part is provided with a lower body, one side of the lower body is fixedly provided with an induced draft fan, the other side of the lower body is provided with a lifting machine, and one end of the lifting machine, which is far away from the lower body, is connected with the top of the reserve part; according to the grain drying device, the drying part is arranged between the storage part and the lower body, grains fall from the bottom of the storage part and pass through the drying part, the grains are heated by the drying part, moisture on the surface of the grains is dried firstly, then far infrared rays are emitted through the graphene after entering the lower body, the moisture in the grains can be activated, namely the moisture in the grains can be rapidly diffused from inside to outside and attached to the surface of the grains, and finally the grains are conveyed back to the storage part again through the lifting machine and evaporated through the drying part.
Description
Technical Field
The invention relates to the technical field of far infrared drying, in particular to a far infrared dryer structure and a drying method thereof.
Background
An infrared dryer, also known as an infrared radiation heater, is a device that converts electrical energy or other forms of energy into radiant energy, and is a key component in an infrared heating system, and is mainly composed of two parts, namely a heat source and a radiation substrate.
Infrared is also called "infrared light". In the electromagnetic spectrum, electromagnetic radiation having wavelengths between red and microwave. Outside the visible range, wavelengths longer than red have significant thermal effects. The infrared drying technology is just utilizing the specific thermal effect. The infrared ray is easy to be absorbed by the object and has radiation, the penetrating power and the electromagnetic wave have the characteristic of special affinity to polar substances, if the water molecule has the characteristic of deep penetration into the material, the internal energy is converted into the object, the object can obtain the heat energy required by drying in a very short time, the internal and external actions are simultaneously carried out, the combined water in the material is more effectively and thoroughly removed, so that the more ideal drying effect is achieved, the energy loss caused by heating a heat transfer medium is avoided, the beneficial energy is saved, meanwhile, the infrared ray is easy to generate, the controllability is good, the heating is rapid, and the drying time is short.
In the prior art, for example, application number CN202110883610.0 discloses a grain circulation dryer based on graphene far-infrared heating and a drying method thereof, and specifically comprises a lifter, a grain storage component, a collecting hopper, a screw conveyor, a plurality of far-infrared heating components and a ventilation and dehumidification component, wherein the ventilation and dehumidification component is arranged between two adjacent far-infrared heating components, grains are heated and dried by the far-infrared heating components, and then wet air is discharged by the dehumidification component.
Wherein the distance between the graphite alkene far infrared irradiation board of far infrared heating subassembly is 1 ~ 4cm, but in the actual production process, the radiation range of the outer infrared ray that gives out through graphite alkene radiation board is below 1cm, if it exceeds 1cm to be through the thickness of graphite alkene radiation board, just hardly guarantees the effect of heating, is difficult to accomplish to dry the inside moisture of all cereal.
Disclosure of Invention
The present invention is directed to a far infrared dryer structure and a drying method thereof, which solves the above problems.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a far infrared dryer structure, remains the portion including storing up, the bottom fixed mounting who stores up and remains the portion has the drying portion, and a plurality of vents have been seted up on the surface of drying portion, and the bottom of drying portion is provided with down the body, and one side fixed mounting of lower body has the draught fan, and the opposite side of lower body is provided with the lifting machine, and the one end that the body was kept away from down to the lifting machine links to each other with the top of storing up and remaining the portion.
Further, the body is including the lower body frame that can external or imbed the drying-machine ejection of compact department down, and the inner chamber top fixed mounting of lower body frame has the speed of deciding to dial grain mechanism, and the speed of deciding is dialled grain mechanism and is linked to each other with the drying portion, and the speed of deciding is dialled the bottom of grain mechanism and is equipped with the graphite alkene glass board that is the slope, cross arrangement, and graphite alkene glass board links to each other with the inside wall of lower body frame, and the outside of graphite alkene glass board is provided with hot-blast room baffle, forms hot-blast room between hot-blast room baffle and the graphite alkene glass board.
Further, the graphite alkene glass board includes the glass board, and the surface of glass board is with graphite alkene board or scribble graphite alkene layer, and the lateral wall fixed mounting of glass board has fixed frame, and the glass board passes through fixed frame and links to each other with the inside wall of lower body frame.
Further, the moisture export has all been seted up to the upper and lower both sides in the hot-blast room, and the output and the moisture export of draught fan link to each other, and the bottom fixed mounting of hot-blast room has the auger delivery screw feeder, the inside auger delivery screw feeder towards in bottom of graphite alkene glass board.
Further, the grain mechanism is dialled to constant speed includes dialling the grain wheel, dials the grain wheel and rotates continuously with lower body frame, dials the one end of grain wheel and is connected with driven sprocket, and the lateral wall fixed mounting of lower body frame has driving motor, and driving motor's output is connected with drive sprocket, and drive sprocket passes through chain and driven sprocket transmission.
A drying method of far infrared ray dryer is executed by the above dryer structure, including the following steps:
s1, conveying grains into a storage part through a lifting machine for tempering;
s2, the grains fall into the drying part from the storage part, the grains are heated through the drying part, and moisture on the surfaces of the grains is dried;
s3, lowering the grains at a constant speed through a constant-speed grain stirring mechanism, uniformly laying the grains on a graphene glass plate, wherein the thickness of the grains is less than 1cm, and the grains can slide downwards along the graphene glass plate;
s4, far infrared rays are emitted through the graphene, the grains are heated and dried, so that moisture in the grains is activated, namely the moisture in the grains is diffused outwards and attached to the surfaces of the grains, and a draught fan discharges the wet air in a hot air chamber outwards;
s5, the grains always slide along the graphene glass plate, slide into the screw conveying auger and are conveyed outwards, then the grains are conveyed into the storage part again through the elevator, and are heated again through the drying part, and the moisture diffused from inside to outside is dried.
The invention has the beneficial effects that:
1. according to the grain drying device, the drying part is arranged between the storage part and the lower body, grains fall from the bottom of the storage part and pass through the drying part, the grains are heated by the drying part, moisture on the surface of the grains is dried firstly, then far infrared rays are emitted through the graphene after entering the lower body, and the moisture in the grains can be activated, namely the moisture in the grains can be diffused from inside to outside rapidly and attached to the surface of the grains, and finally the grains are conveyed back to the storage part again through the elevator and evaporated through the drying part;
2. according to the invention, the grain pushing mechanism with a constant speed is arranged, so that grains can be dropped at a certain speed and uniformly distributed on the surface of the graphene glass plate, the thickness of the grains is not more than 1cm, and the grains can be completely irradiated by far infrared rays;
3. according to the grain drying device, the inclined graphene glass plates are arranged in a crossed mode in a certain direction, grains can slide along the inclined graphene glass plates, far infrared rays can be completely irradiated on the grains, the number of the graphene glass plates on the same side is at least 2, the contact time of the grains and the graphene glass plates can be guaranteed, and moisture in the grains can be activated.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts;
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic structural view of the lower body of the present invention;
fig. 4 is a schematic diagram of APP connection of a mobile phone according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a far infrared dryer structure, including storing up the portion of keeping, be used for storing cereal, the bottom fixed mounting who stores up the portion of keeping has the drying portion, when cereal falls from storing up the portion of keeping, the drying portion can be dried earlier cereal, evaporate the moisture on cereal surface, a plurality of vents have been seted up on the surface of drying portion, the bottom of drying portion is provided with down the body, the cereal that the surface moisture was evaporated will enter into down the body, utilize far infrared to heat, one side fixed mounting of lower body has the draught fan, can take out this internal humid air down, the opposite side of lower body is provided with the lifting machine, the one end that the body was kept away from down to the lifting machine links to each other with the top of storing up the portion of keeping.
Lower body is including the lower body frame that can external or imbed drying-machine ejection of compact department, the grain mechanism is dialled at the constant speed to the inner chamber top fixed mounting of lower body frame, the grain mechanism is dialled at the constant speed and is linked to each other with the drying portion, cereal in the drying portion slides downwards, will enter into in the grain mechanism is dialled at the constant speed, the grain mechanism is dialled at the constant speed can guarantee to dial the unloading at the uniform velocity with certain speed, it can even unloading to keep cereal, and the thickness of cereal can not exceed 1cm, the bottom of grain mechanism is dialled at the constant speed is equipped with and is the slope, cross arrangement's graphite alkene glass board, the infrared ray that graphite alkene produced through circular telegram heating can arouse the inside moisture of cereal, make the moisture in the cereal from inside to outside to spread, graphite alkene glass board links to each other with the inside wall of lower body frame, and simultaneously, the quantity of graphite alkene glass board with one side is 2 at least, this is long enough in order to guarantee cereal and graphite alkene glass board's contact time, be convenient for cereal complete drying, the outside of graphite alkene glass board is provided with hot-blast room baffle, prevent hot-blast outward heat loss.
The graphene glass plate comprises a glass plate, the surface of the glass plate is attached with the graphene plate or coated with a graphene layer, as long as a graphene material is attached to the front surface of the glass plate, the graphene material can emit far infrared rays, the side wall of the glass plate is fixedly provided with a fixed frame, and the glass plate is connected with the inner side wall of the lower body frame through the fixed frame.
The moisture export has all been seted up to the upper and lower both sides in the hot-blast room, the output of draught fan links to each other with the moisture export, discharge through the damp and hot air that the draught fan will be down in the body frame, the bottom fixed mounting of hot-blast room has the auger delivery screw feeder, the bottom of graphite alkene glass board is inwards towards the auger delivery screw feeder, cereal after the stoving can slide in the auger delivery screw feeder, by outside transport, and can be carried once more by the lifting machine in storing up the portion, through the drying portion, the moisture evaporation that will adhere to on the cereal surface once more falls.
The constant-speed grain stirring mechanism comprises a grain stirring wheel, the grain stirring wheel is rotationally connected with the lower body rack, one end of the grain stirring wheel is connected with a driven sprocket, the outer side wall of the lower body rack is fixedly provided with a driving motor, the output end of the driving motor is connected with a driving sprocket, and the driving sprocket is in transmission with the driven sprocket through a chain.
The far infrared ray drying method for the drier includes the following steps:
s1, conveying grains into a storage part through a lifting machine for tempering;
s2, the grains fall into the drying part from the storage part, the grains are heated through the drying part, and moisture on the surfaces of the grains is dried;
s3, lowering the grains at a constant speed through a constant-speed grain stirring mechanism, uniformly laying the grains on a graphene glass plate, wherein the thickness of the grains is smaller than 1cm, and the grains can slide downwards along the graphene glass plate;
s4, far infrared rays are emitted through the graphene, the grains are heated and dried, so that moisture in the grains is activated, namely the moisture in the grains is diffused outwards and attached to the surfaces of the grains, and a draught fan can discharge the wet air in a hot air chamber outwards;
s5, the grains always slide along the graphene glass plate, slide into the screw conveying auger, are conveyed outwards, are conveyed into the storage part again through the elevator, are heated again through the drying part, and dry the moisture diffused from inside to outside.
Referring to fig. 4, the mobile phone may be connected to the dryer, and the mobile phone APP remote control work overview:
adopt STM32L432 as main control chip, gather ambient temperature through DS18B20, through MQ2 and MQ135 hot air temperature, detect the moisture value through GP2Y1050AU0F, through the switch of IO mouth control cold wind valve, connect remote server through serial ports control ESP8266 and communicate in APP.
UCOSIII is operated on the STM32L432, three tasks are created, the tasks are respectively used for judging the control mode of the electric appliance and controlling the electric appliance, data of each sensor are collected and sent to a remote server, and a remote command is analyzed.
The remote server is a Tencent cloud, the system is a ubuntu, and a TCP port forwarding program is operated on the remote server and used for forwarding data of the computer control system of the grain dryer and data of the APP end of the mobile phone, so that transparent transmission of the data between the computer control system of the grain dryer and the mobile phone is realized.
The functions are as follows:
1. cell-phone APP remote control: STM32L432 development board passes through the WIFI module and establishes TCP with internet server and is connected, and the server uses the Tencent cloud, and the server system is ubuntu, just establishes a TCP relay server on ubuntu, realizes long-range APP cell-phone end and grain drier automatic control system's information relay transmission to realize remote control.
2 grain dryer measurement system: the detection of moisture value, hot air temperature, environment temperature, installed capacity and the like is realized through MQ-2, MQ-135 and GP2Y1050AU0F modules, and detected data are fed back to the APP end of the mobile phone through an ESP 8266.
3. Automatic control of the grain drier: the automatic control system of the grain drier can automatically control the opening of the cold and hot air valve, the automatic drying, the automatic adjustment of the hot air temperature and the like according to detected data.
PLC remote control system's advantage and characteristics based on cell-phone APP:
1. the remote control system can make full use of the dryer in different places, and technical personnel and service personnel in different places can obtain remote monitoring data through the network to analyze and process the data, so that remote monitoring is realized.
2. The application of the remote monitoring system can realize the rapid centralized and real-time acquisition of the field operation data, obtain the field monitoring data and provide a material basis for remote fault diagnosis technology.
3. The remote control system is used by a drying equipment manager, so that the working condition of the site can be monitored without touching a severe drying site environment, the setting and adjustment of parameters, the fault repair and the like are completed.
And 4, the PLC remote control system can fully utilize the material resources in different places. By using the technology, the sharing of the material resources in different places and remote experiments can be realized.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed.
Claims (6)
1. The utility model provides a far infrared dryer structure, remains the portion including storing up, its characterized in that, the bottom fixed mounting who stores up and remains the portion has the drying portion, and a plurality of vents have been seted up on the surface of drying portion, and the bottom of drying portion is provided with down the body, and one side fixed mounting of lower body has the draught fan, and the opposite side of lower body is provided with the lifting machine, and the one end of body links to each other with the top of storing up and remaining the portion under the lifting machine is kept away from.
2. The far infrared dryer structure according to claim 1, wherein the lower body includes a lower body frame which can be externally connected to or embedded into the discharge portion of the dryer, a constant speed grain-stirring mechanism is fixedly installed on the top of the inner cavity of the lower body frame, the constant speed grain-stirring mechanism is connected to the drying portion, the bottom of the constant speed grain-stirring mechanism is provided with inclined and cross-arranged graphene glass plates, the graphene glass plates are connected to the inner side wall of the lower body frame, the outer side of the graphene glass plates is provided with hot air chamber partitions, and a hot air chamber is formed between the hot air chamber partitions and the graphene glass plates.
3. The far infrared dryer structure as claimed in claim 2, wherein the graphene glass plate comprises a glass plate, the surface of the glass plate is attached with the graphene plate or coated with a graphene layer, a fixing frame is fixedly installed on the side wall of the glass plate, and the glass plate is connected with the inner side wall of the lower body frame through the fixing frame.
4. The far infrared dryer structure according to claim 2, characterized in that moisture outlets are formed in the upper and lower sides of the hot air chamber, the output end of the induced draft fan is connected with the moisture outlets, a screw conveying auger is fixedly mounted at the bottom of the hot air chamber, and the bottom end of the graphene glass plate faces inwards to the screw conveying auger.
5. The far infrared dryer structure according to claim 4, characterized in that the constant speed grain-pushing mechanism comprises a grain-pushing wheel which is rotatably connected with the lower body frame, one end of the grain-pushing wheel is connected with a driven sprocket, a driving motor is fixedly mounted on the outer side wall of the lower body frame, the output end of the driving motor is connected with a driving sprocket, and the driving sprocket is in transmission with the driven sprocket through a chain.
6. A drying method of a far infrared ray dryer, which is performed by the structure of the far infrared ray dryer according to any one of claims 2 to 5, characterized by comprising the steps of:
s1, conveying grains into a storage part through a lifting machine for tempering;
s2, the grains fall into the drying part from the storage part, the grains are heated through the drying part, and moisture on the surfaces of the grains is dried;
s3, lowering the grains at a constant speed through a constant-speed grain stirring mechanism, uniformly laying the grains on a graphene glass plate, wherein the thickness of the grains is less than 1cm, and the grains can slide downwards along the graphene glass plate;
s4, far infrared rays are emitted through the graphene, the grains are heated and dried, so that moisture in the grains is activated, namely the moisture in the grains is diffused outwards and attached to the surfaces of the grains, and a draught fan discharges the wet air in a hot air chamber outwards;
s5, the grains always slide along the graphene glass plate, slide into the screw conveying auger, are conveyed outwards, are conveyed into the storage part again through the elevator, are heated again through the drying part, and dry the moisture diffused from inside to outside.
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| KR20220023015A (en) * | 2020-08-20 | 2022-03-02 | 하 중 김 | The infrared multipurpose dryer having encapsulated type structure |
| CN113632833A (en) * | 2021-08-03 | 2021-11-12 | 农业农村部南京农业机械化研究所 | Grain circulating dryer based on graphene far-infrared heating and drying method thereof |
| CN215337489U (en) * | 2021-08-28 | 2021-12-28 | 南京源昌新材料有限公司 | Drying module of large-scale far infrared drying-machine |
| CN114526597A (en) * | 2022-01-24 | 2022-05-24 | 南京农业大学 | Intelligent drying control system of grain dryer |
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