CN102735042A - Hot air microwave coupling device - Google Patents
Hot air microwave coupling device Download PDFInfo
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- CN102735042A CN102735042A CN2012102101008A CN201210210100A CN102735042A CN 102735042 A CN102735042 A CN 102735042A CN 2012102101008 A CN2012102101008 A CN 2012102101008A CN 201210210100 A CN201210210100 A CN 201210210100A CN 102735042 A CN102735042 A CN 102735042A
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Abstract
The invention relates to a hot air microwave coupling device. The device comprises a box, wherein an air inlet, a fan, a control box and microwave energy feedback port components are arranged outside the box; a left chamber and a right chamber which are divided by a panel are formed in the box; a heat exchanger is arranged in the left chamber; a drying chamber is formed between the left chamber and the right chamber; a first air channel is arranged above the drying chamber; a dehumidifying valve is arranged on the first air channel; and a second air channel is arranged below the drying chamber and communicated with the drying chamber.
Description
Technical field
The present invention relates to a kind of hot wind and microwave coupling drying device, be specifically related to hot blast field and microwave field acting in conjunction in the device of dried material.
Background technology
In agricultural product and food, bigger like red date, lichee, nut, grape and preserved fruit equidimension, the drying problems that keep its profile is the difficult problem in dry field always; The drying of China's red date, lichee, grape is main with artificial airing or drying room drying still; The heat of traditional heated-air drying be from material table towards internal delivery, the moisture content on material surface is heated and overflows soon soon and very, material moisture content degree of passing is outside by the center; Carrying out along with dry run; It is more and more finer and close that the material surface becomes, and hindered internal moisture to external migration and diffusion, and rate of drying diminishes; And for keeping activity and the nutritional labeling in the material, baking temperature can not be high, and treating capacity is very big again.Therefore traditional heated-air drying efficient is low, poor product quality; Nut, preserved fruit adopt heated-air drying to need tens hours, and the time causes production efficiency low than length.Its energy utilization ratio is generally 50 ~ 65% simultaneously, and all the other are transmitted to atmosphere on every side or dissipate through equipment surface and are discharged in the atmospheric environment in tail gas, the waste energy.
Summary of the invention
The applicant provides hot wind and microwave coupling device a kind of simple in structure, easy to use to above-mentioned shortcoming, has the drying efficiency height, and speed reaches energy-saving advantages soon.
The technical scheme that the present invention adopted is following:
A kind of hot wind and microwave coupling device; Comprise a casing, outside casing, be provided with air inlet, blower fan, control cabinet and microwave energy-feeding mouth assembly, in casing, be provided with the left chamber and the right chamber that are divided into by panel; Interior arrangement heat exchanger in left chamber; Between left chamber and right chamber, be provided with hothouse, the top of hothouse is provided with first air channel, and first air channel is provided with the hydrofuge valve; The below of hothouse is provided with second air channel, and second air channel is connected with hothouse.
It is further characterized in that:
Said panel comprises left panel and right panel, has the hole on left panel and the right panel, and the hole is equilateral triangle and arranges; The bore dia of demifacet is less than the upper half plane bore dia under the said left panel, and the bore dia of demifacet is greater than the upper half plane bore dia under the right panel;
Said microwave energy-feeding mouth assembly is four, comprises first waveguide, device magnetron and microwave agitating device in said first waveguide;
Said microwave agitating device comprises a motor, and motor connects stirring vane through rotating shaft, and said stirring vane is positioned at the microwave energy-feeding chamber;
Escapement drip pan frame in the said hothouse installs drip pan on the said drip pan frame;
One side of said casing is articulated mounting left-hand door and You Men also, is provided with the door lock chain between said left-hand door and the right door, is provided with rubber seal and copper wire braid in the peripheric surface of said left-hand door and right door;
The blower fan that said casing is provided with outward comprises axial flow blower and following axial flow blower, and axial flow blower is the two ends up and down that are relatively arranged on casing with following axial flow blower on said.
Said casing is provided with heat-insulation layer.
Beneficial effect of the present invention is following:
The present invention adopts hot blast and microwave field to act on simultaneously; The inner moisture of material does not need propagation medium; Directly absorb microwave energy, make that material is inner in the dry run to be greatly improved, not only improve rate of drying or speed with the heat on surface and the transmission speed of quality; Also reduce the loss of biological activity, improve the quality of dry products.
The present invention utilizes the capacity usage ratio of microwave up to more than 90%, because the dry materials time shortens significantly, whole capacity usage ratio improves by a relatively large margin, and overall energy consumption and expending by a relatively large margin descends, and reaches energy-conservation effect.
The microwave energy-feeding mouth can be provided with one or more according to the size of hothouse, and the microwave energy size of each input microwave energy-feeding mouth of scalable makes hot blast energy and the different dry products of microwave energy beguine certificate, is adjusted to suitable ratio.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the rearview of Fig. 1.
Fig. 4 is the sectional structure sketch map along the A-A direction of Fig. 2.
Fig. 5 is the structure for amplifying sketch map at B place among Fig. 2.
Fig. 6 is the structural representation of hothouse left panel of the present invention.
Fig. 7 is the structural representation of hothouse right panel of the present invention.
Fig. 8 is the sketch map that flows in hot blast flow field in the hothouse of the present invention.
Fig. 9 is the structural representation of stirring vane.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Like Fig. 1, shown in Figure 3, the present invention includes a casing, outside casing, be provided with air inlet 1, blower fan, control cabinet 3 and microwave energy-feeding mouth assembly 18; As shown in Figure 2, microwave energy-feeding mouth assembly is four, and is as shown in Figure 5; Microwave energy-feeding mouth assembly 18 comprises waveguide 184; Device magnetron 185 and microwave agitating device in waveguide 184, said microwave agitating device comprises a motor 182, motor 182 connects stirring vane 181 through rotating shaft 186; The structure of stirring vane 181 is as shown in Figure 9, and stirring vane 181 is positioned at energy regenerative chamber 187.Like Fig. 1, shown in Figure 3, the blower fan that casing is provided with outward comprises that axial flow blower 2 reaches axial flow blower 9 down, and last axial flow blower 2 is the two ends that are relatively arranged on casing with following axial flow blower 9.Like Fig. 2, shown in Figure 4; In casing, be provided with the left chamber 12 and the right chamber 6 that are divided into by panel, the interior arrangement heat exchanger 13 in left chamber 12 is provided with hothouse between left chamber 12 and right chamber 6; Escapement drip pan frame 4 in the hothouse, device drip pan 10 on the drip pan frame 4.The top of hothouse is provided with upper chamber 16, is provided with 17, the first air channels 17, first air channel in the upper chamber 16 and is provided with hydrofuge valve 14; The below of hothouse is provided with lower chambers 7, is provided with 8, the second air channels 8, second air channel in the lower chambers 7 and is connected with hothouse.
Like Fig. 6, shown in Figure 7, panel comprises left panel 11 and right panel 5, has the hole on left panel 11 and the right panel 5, and the hole is equilateral triangle and arranges; As shown in Figure 6, be covered with perforate on upper half plane 111 and the following demifacet 113 in the left panel 11, hole centre-to-centre spacing is 2 times of opening diameter.The diameter in the hole on the upper half plane 111 is less than the diameter in following demifacet 113 holes.As shown in Figure 7, in the right panel 5 on upper half plane 501 and the following demifacet 503 the perforate arrangement identical with left panel 11, the diameter in the hole of upper half plane 501 is greater than the diameter in demifacet 503 holes down in the said right panel 5.
As shown in Figure 1, a side that is positioned at casing is also through hinge 22 device left-hand doors 26 and right door 27, is provided with the door lock chain between left-hand door 26 and the right door 27, and is as shown in Figure 2, is provided with rubber seal 19 and copper wire braid 20 in left-hand door 26 and right 27 peripheric surface.
The course of work of the present invention is following:
Putting on the drip pan 10 in hothouse needs dry material, as shown in Figure 8, last axial flow blower 2 work; Cold wind is sucked by air inlet 1 place, and cold wind gets into left cavity 12 then through being positioned at the air channel 17 of upper cavity 16; Cold wind raises through heat exchanger 13 back temperature and changes hot blast into; Wherein a part of hot blast gets into second air channel 8, because second air channel 8 is connected with hothouse through being positioned at following axial flow blower 9 work of below, casing left side; Make hot blast in second air channel 8, vertically get into hothouse, and form percolation; Another part hot blast passes left panel 11 backs and gets into hothouse; Because the layout of position, hole on the left panel 11; The flow direction that makes hot blast is converted into the intersection convection current shown in arrow among Fig. 8 after through left panel 11; Make thus to form in the hothouse and intersect convection current and percolation hot blast, fully contact with material on drip pan 10, make conduct heat and mass transfer effect good.
As shown in Figure 3, when hot blast transmitted in hothouse, microwave energy-feeding mouth assembly 18 was also started working; Like Fig. 2, shown in Figure 5, launch microwave by magnetron 185 work, microwave gets in the metallic cavity by waveguide 184 besieged cities; Get into microwave energy-feeding chamber 187 then, get into hothouse through hothouse panel 24 and polyfluortetraethylene plate 25 backs then, motor 182 work; The stirring vane 181 that drives rotating shaft 186 and be connected with rotating shaft 186 rotates; Stirring vane 181 adopts metal material to process, and constantly rotates stirring vane 181 and changes the distribution of microwave field in the hothouse, thereby make the material that is positioned on the hothouse drip pan receive the microwave homogeneous radiation.
This practical specific embodiment is following:
Embodiment one: the drying of tea oil seed.
Tea oil have " the east olive oil " and title; Its unsaturated fat content is high; Can prevent diseases such as artery sclerosis and artery sclerosis complication, hypertension, heart disease, cerebral hemorrhage, can also promote digestive system function, strengthen the internal system function, strengthen bone etc.First procedure of producing tea oil is exactly the drying of tea seed; Tea seed is the spherical or closely spherical of the about 5-20 mm of diameter; There is the fine and close duricrust of one deck on the surface, seriously hinder dry run moisture to external migration and diffusion, so drying means directly influences the quality of oil tea.Choose the fresh tea seed of about 10 mm of size during experiment, recording its initial water content is 35.6%, needs 14 hours with 80 ℃ of heated-air drying tea seed to moisture below 6%, and the peroxide value of grease is 1.0472 nmol/Kg.It is dry to carry out the hot wind and microwave coupling through the present invention; Its hot blast temperature be 60 ℃, hot blast speed be 1.3 m/s, when Microwave Power Density is 2.0 W/g; Being dried to moisture 6% following required time is 302 minutes, and the peroxide value of grease is 1.0472 nmol/Kg.Nearly 3 times of the air-dry dry saving of hot wind and microwave coupling specific heat drying time, peroxide value has reduced 7.46%.
Embodiment two: the drying of carrot slice
Fresh carrot is cut into the thick disk of 5-6 mm after cleaning and draining, and respectively takes by weighing 300 g with electronic balance, and it is dry to carry out the coupling of heated-air drying and hot wind and microwave respectively.Use 70 ℃ of heated-air drying carrot slice to safe moistures to need 6 hours below 6%, the retention rate of beta carotene is 70.8%, and it is big that profile is shunk torsional deformation; It is dry to use the present invention to carry out the hot wind and microwave coupling; Its hot blast temperature be 70 ℃, hot blast speed be 0.5 m/s, when Microwave Power Density is 1.5 W/g; Being dried to moisture 6% following required time is 52 minutes, and the retention rate of beta carotene is 85.7%, lovely luster; Aromatic flavour, profile is more smooth.It is thus clear that the retention rate of our bright method dried carrot sheet beta carotene has improved 15%, be 7/50 of the synthermal following pure heated-air drying time drying time, and the quality and the drying efficiency of dry products all are greatly improved.
Embodiment three: the drying of instant-rice
Rice and water respectively take by weighing 300 g with electronic balance after the 1:2 boiling, it is dry to carry out the coupling of heated-air drying and hot wind and microwave respectively.Rice to safe moisture needs 3 hours below 10% after using 80 ℃ of heated-air drying boilings, and the volume retention rate is 75.2%, and rehydration time needs 15 minutes.Use the hot wind and microwave coupling dry, its hot blast temperature be 65 ℃, hot blast speed be 1 m/s, when Microwave Power Density is 3 W/g, being dried to moisture 6% following required time is 38 minutes, the volume retention rate is 87.2%, rehydration time 5 minutes.It is thus clear that the dry instant-rice volume retention rate of our bright method has improved 16%, be 1/5 of the pure heated-air drying time drying time approximately, and the rehydration speed and the drying efficiency of dry products all are greatly improved.
Go up axial flow blower, following its structure of axial flow blower and operation principle among the present invention and all belong to existing known technology.
Arrow is represented the flow direction of wind among Fig. 8.
More than describing is to explanation of the present invention, is not that institute of the present invention restricted portion is referring to claim to the qualification of invention, and under the situation of basic structure of the present invention, the present invention can do any type of modification.
Claims (8)
1. hot wind and microwave coupling device; It is characterized in that: comprise a casing; Outside casing, be provided with air inlet (1), blower fan, control cabinet (3) and microwave energy-feeding mouth assembly (18); In said casing, be provided with the left chamber (12) and the right chamber (6) that are divided into by panel, the interior arrangement heat exchanger (13) in left chamber (12) is provided with hothouse between said left chamber (12) and right chamber (6); The top of said hothouse is provided with first air channel (17), and first air channel (17) are provided with hydrofuge valve (14); The below of hothouse is provided with second air channel (8), and second air channel (8) are connected with hothouse.
2. a kind of hot wind and microwave coupling device as claimed in claim 1 is characterized in that: said panel comprises left panel (11) and right panel (5), has the hole on said left panel (11) and the right panel (5), and said hole is equilateral triangle and arranges; The bore dia of demifacet is less than the upper half plane bore dia under the said left panel (11), and the bore dia of demifacet is greater than the upper half plane bore dia under the right panel (5).
3. a kind of hot wind and microwave coupling device as claimed in claim 1; It is characterized in that: said microwave energy-feeding mouth assembly (18) is four; Comprise first waveguide (184), go up device magnetron (185) and microwave agitating device in said first waveguide (184).
4. a kind of hot wind and microwave coupling device as claimed in claim 2; It is characterized in that: said microwave agitating device comprises a motor (182); Said motor (182) connects stirring vane (181) through rotating shaft (186), and said stirring vane (181) is positioned at microwave energy-feeding chamber (187).
5. a kind of hot wind and microwave coupling device as claimed in claim 1 is characterized in that: escapement drip pan frame (4) in the said hothouse, said drip pan frame (4) is gone up device drip pan (10).
6. a kind of hot wind and microwave coupling device as claimed in claim 1; It is characterized in that: a side of said casing is articulated mounting left-hand door (26) and right door (27) also; Be provided with the door lock chain between said left-hand door (26) and the right door (27), the peripheric surface in said left-hand door (26) and right (27) is provided with rubber seal (19) and copper wire braid (20).
7. a kind of hot wind and microwave coupling device as claimed in claim 1; It is characterized in that: the blower fan that said casing is provided with outward comprises axial flow blower (2) and following axial flow blower (9), and axial flow blower (2) is the two ends up and down that are relatively arranged on casing with following axial flow blower (9) on said.
8. a kind of hot wind and microwave coupling device as claimed in claim 1 is characterized in that: said casing is provided with heat-insulation layer (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210100.8A CN102735042B (en) | 2012-06-25 | 2012-06-25 | Hot air microwave coupling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210210100.8A CN102735042B (en) | 2012-06-25 | 2012-06-25 | Hot air microwave coupling device |
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| CN102735042A true CN102735042A (en) | 2012-10-17 |
| CN102735042B CN102735042B (en) | 2014-07-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006638A (en) * | 2014-06-19 | 2014-08-27 | 中国烟草总公司郑州烟草研究院 | Microwave fixed bed hot air combined drying experimental device suitable for on-line analysis |
| CN104342177A (en) * | 2014-09-18 | 2015-02-11 | 苏州新协力环保科技有限公司 | Carbonizing furnace with biomass particles |
| CN104697303A (en) * | 2013-12-05 | 2015-06-10 | 江南大学 | Microwave hot-blast air coupling drying system for acquiring optimal drying curve |
| CN105192517A (en) * | 2014-06-24 | 2015-12-30 | 江南大学 | Dried rice cake piece making method |
| CN105231254A (en) * | 2015-09-13 | 2016-01-13 | 常州大学 | Hot-blast air and microwave coupling food drying control system |
| CN108294143A (en) * | 2017-12-13 | 2018-07-20 | 安徽金龙山葛业有限公司 | A kind of baking device of kudzu root tea |
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| CN102200387A (en) * | 2010-03-26 | 2011-09-28 | 中国农业机械化科学研究院 | Microwave stirring device and microwave freeze-drying equipment provided with same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697303A (en) * | 2013-12-05 | 2015-06-10 | 江南大学 | Microwave hot-blast air coupling drying system for acquiring optimal drying curve |
| CN104006638A (en) * | 2014-06-19 | 2014-08-27 | 中国烟草总公司郑州烟草研究院 | Microwave fixed bed hot air combined drying experimental device suitable for on-line analysis |
| CN104006638B (en) * | 2014-06-19 | 2016-04-06 | 中国烟草总公司郑州烟草研究院 | Be applicable to the hot air combined drying experimental device of microwave fixed bed of on-line analysis |
| CN105192517A (en) * | 2014-06-24 | 2015-12-30 | 江南大学 | Dried rice cake piece making method |
| CN104342177A (en) * | 2014-09-18 | 2015-02-11 | 苏州新协力环保科技有限公司 | Carbonizing furnace with biomass particles |
| CN104342177B (en) * | 2014-09-18 | 2016-05-18 | 苏州新协力环保科技有限公司 | A kind of biological particles charcoal processing stove |
| CN105231254A (en) * | 2015-09-13 | 2016-01-13 | 常州大学 | Hot-blast air and microwave coupling food drying control system |
| CN108294143A (en) * | 2017-12-13 | 2018-07-20 | 安徽金龙山葛业有限公司 | A kind of baking device of kudzu root tea |
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| CN102735042B (en) | 2014-07-23 |
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Application publication date: 20121017 Assignee: Shaanxi Hao Qi Jun Pharmaceutical Co., Ltd. Assignor: Jiangnan University Contract record no.: 2014610000143 Denomination of invention: Hot air microwave coupling device Granted publication date: 20140723 License type: Exclusive License Record date: 20140917 |
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Effective date of registration: 20160616 Address after: 712100 No. 6 Shennong Road, Yangling demonstration area, Xi'an, Shaanxi Patentee after: Shaanxi Hao Qi Jun Pharmaceutical Co., Ltd. Address before: No. 1800 road 214122 Jiangsu Lihu Binhu District City of Wuxi Province Patentee before: Jiangnan University |