CN106123492A - A kind of microwave horizontal multi-cell fluidized bed drying device - Google Patents
A kind of microwave horizontal multi-cell fluidized bed drying device Download PDFInfo
- Publication number
- CN106123492A CN106123492A CN201610579819.7A CN201610579819A CN106123492A CN 106123492 A CN106123492 A CN 106123492A CN 201610579819 A CN201610579819 A CN 201610579819A CN 106123492 A CN106123492 A CN 106123492A
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- Prior art keywords
- microwave
- drying baker
- drying
- fluidized bed
- horizontal multi
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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
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
-
- 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
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/007—Dust filtering; Exhaust dust filters
-
- 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
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A kind of microwave horizontal multi-cell fluidized bed drying device, including drying baker, the side of described drying baker is provided with charging aperture, opposite side is provided with discharging opening, the bottom of drying baker connects hot blast feeding system, the top of drying baker is provided with gas outlet, and gas outlet is connected with dust arrester, blower unit successively, and the outer wall of drying baker is additionally provided with microwave generating apparatus.Microwave drying technology and horizontal multi-cell fluidized bed drying equipment are organically combined by the present invention, make material be dried under fluidized state, are effectively increased the uniformity of microwave heating.Utilize microwave to provide heat, horizontal multi-cell fluidized bed hot-air can be made up far from the deficiency meeting wet stock and being dried institute's calorific requirement.The higher heat sensitive material of interior moisture content can realize maximizing by the present invention, continuously, stable state, be dried uniformly, both can guarantee that the drying quality of product, dry rate can have been improved again, and reduce energy consumption for drying.
Description
Technical field
The present invention relates to a kind of microwave horizontal multi-cell fluidized bed drying device.
Background technology
The microwave that microwave drying utilizes strong high-frequency ac voltage to produce directly is absorbed by the moisture in wet stock or humid medium,
Make hydrone or polar molecule vibration, the most intensely collision friction and inside material produce heat, contained humidity because of polarization
Heat and vaporize.Microwave drying is to make the moisture (polar molecule) within wet stock absorb microwave polarization heat and heat up, material
For nonpolar molecule, dry run itself the most directly absorbs microwave and produces heat, the most indirectly obtain moisture heat transfer, thus dry
The temperature of material is always less than moisture or the temperature of humid medium, and when being dried heat sensitive material in a low temperature of setting, it effectively becomes
Part is difficult to lose, and dry mass is good.And, microwave drying also has promptness, selectivity, easily controllable, safety and sanitation, sterilization
The features such as ability is strong.Microwave drying technology and equipment thereof are widely used in the industries such as chemical industry, food, medicine.Due to microwave heating
There is inhomogeneities, and be dried the inhomogeneities of material internal structure and water content, pole during micro-wave drying
It is easily caused material hot-spot.Become one of restriction bottleneck of applying in agricultural production manufacture field scale of microwave heating technique.
Microwave hot air combination drying utilizes microwave drying technology and the respective advantage of Hot Air Drying, has and does than microwave
Dry and the faster dry rate of hot air drying and higher drying quality, thus receive significant attention.But lack excellent work
Industry equipment makes this combination drying technology be widely used not yet.
Fluid bed is a kind of to have the highest heat transfer coefficient, the drying equipment of bigger production capacity.Fluid-bed drying technology
Feature mainly show as fluid and solid particle mixing in fluid bed fully, Surface Renewal chance be many, significantly enhance solid phase,
Heat transfer between liquid and gas and mass transfer, thus in bed, temperature ratio is more uniform.Fluidized bed drying equipment be widely used in chemical industry,
The industries such as oil, food, medicine, biomedicine, are also applied for some heat sensitive material and are dried.
Horizontal multicompartment fluidized bed dryer, as the one of fluidized bed drying equipment, is a kind of simple in construction, operates and unload
Material is convenient, residence time of material can arbitrarily regulate, material treating capacity is big, stable operation, rate of drying are fast, product drying is uniform
Fluidized bed dryer.Horizontal multicompartment fluidized bed dryer hot-air can not meet wet stock be dried institute's calorific requirement time, Chang Cai
Use built-in heat exchanger auxiliary heat supplying, but built-in heat exchanger can affect the normal fluidisation of material, and there is feed blocking between heat exchanger tube
With overheated, and the problem such as the abrasion of heat exchanger tube.
Microwave fluid bed combination drying technology can realize the fluidized drying of material, has uniform drying, baking temperature relatively
Advantage low, that dry products quality better, dry rate are big, energy consumption is low, is particularly well-suited to being dried of heat sensitive material.
Such as Application No. 200920193648.X and the Chinese patent of 201220174418.0, individually disclose a kind of for
The microwave fluidized-bed equipment of powder drying and a kind of microwave fluidized-bed equipment being dried for solid particle, can make material relatively
Be dried process under conditions of low temperature, dry mass and the yield of material can be improved, be particularly suited for low melting point, temperature-sensitive,
The rapid draing of oxidizable solid particle processes.But easily there is uneven drying or the phenomenon such as overheated in the said equipment, and is difficult to
Realize a large amount of, continuous drying.
As application number 201410261215.9 discloses a kind of Multistage Microwave fluidized bed drying device and drying means thereof, logical
Cross and adjust the multistage distribution grid angle of inclination control material time of staying in fluid bed drying reactor, be suitable for different water cut
Being dried of amount material；By changing the microwave drying power of multistage distribution grid feedback porch, it is achieved the maximum utilization of microwave energy
Change；But the degree of tilt of the multistage distribution grid of this equipment is difficult to control to, it is difficult to realize continuously, stable state is dried.
In sum, there is presently no a kind of microwave fluidized bed drying equipment and can preferably be applied to microwave-hot air drying skill
Art, with realize the high heat sensitive material of interior moisture content maximization, continuously, stable state, be uniformly dried, both ensured dry products
Quality, improves dry rate simultaneously, reduces dry run energy consumption.
Summary of the invention
For overcoming disadvantages mentioned above, the present invention provides a kind of microwave horizontal multi-cell fluidized bed drying device
The technical scheme is that
A kind of microwave horizontal multi-cell fluidized bed drying device, including drying baker, the side of described drying baker is provided with charging aperture,
Opposite side is provided with discharging opening, and the bottom of drying baker connects hot blast feeding system, and the top of drying baker is provided with gas outlet, and gives vent to anger
Mouth is connected with dust arrester, blower unit successively, and the outer wall of drying baker is additionally provided with microwave generating apparatus；
The distribution grid of drying baker bottom surface is provided with through hole, is provided with several and can be separated into by drying baker inner chamber many in drying baker
The dividing plate of individual hothouse, the lower section of each hothouse be equipped with one at the bottom of funnelform cone, the big opening end at the bottom of described cone is with right
The hothouse answered is connected by the through hole on distribution grid, and the osculum end at the cone end is all connected with hot blast feeding system；
Described hot blast feeding system includes the ajutage of the aerator, heater and several parallel connections that are sequentially connected, described
Ajutage connects one by one with the osculum end at the cone end；
Described microwave generating apparatus includes the microwave generator being laid on each hothouse wall respectively, and microwave occurs
The airtight wall through hothouse in guided wave chamber of device front end, microwave generator is all connected with power governor.
Further, the distribution grid of described drying baker is equipped with tetrafluoro web plate.
Further, the charging aperture of drying baker is connected with feed screw, and the discharge outlet of drying baker is provided with blocking valve.
Further, the inwall of described drying baker has chute along short transverse, and the both sides of described dividing plate are mounted slidably
On chute.
Further, described ajutage is provided with volume damper.
Further, it is equipped with the first Chain Link Fence along cross section in described ajutage.
Further, described dust arrester includes cyclone separator and the sack cleaner being connected, and described blower unit is
Air-introduced machine, described cyclone separator is connected with drying baker gas outlet, and sack cleaner is connected with air-introduced machine, described cyclone separator
And it is equipped with the second Chain Link Fence along cross section in the connection pipeline between sack cleaner.
Further, the top half of described drying baker is provided with expanding reach, and the cross-sectional area of the drying baker of described expanding reach is big
Cross-sectional area in drying baker the latter half.
Further, the microwave generator on each hothouse is arranged in pairs, and every pair of microwave generator is co-axially located at dry
The both sides that room is relative, and the power Independent adjustable of each pair of microwave generator.
The invention has the beneficial effects as follows:
Microwave drying technology and horizontal multi-cell fluidized bed drying equipment are organically combined by the present invention, make material at stream
It is dried under change state, is effectively increased the uniformity of microwave heating；And utilize microwave to provide heat, overcome horizontal multicell fluidisation
The shortcoming that bed only relies on hot-air dry and cannot meet dry materials institute calorific requirement；Improve the inhomogeneities of microwave drying,
Overcome the microwave fluidized bed drying equipment of existing employing microwave hot air combination drying technology be difficult to maximize, continuously, stable state, all
Even dry deficiency.
The present invention, can to interior moisture content relatively by the combination of microwave drying technology with horizontal multi-cell fluidized bed equipment
High heat sensitive material realizes maximizing, continuously, stable state, be dried uniformly, both can guarantee that the drying quality of product, can improve again
Dry rate, and reduce energy consumption for drying.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is drying baker side view.
Detailed description of the invention
Referring to the drawings, a kind of microwave horizontal multi-cell fluidized bed drying device, including drying baker 6, the side of described drying baker 6
Being provided with charging aperture 9, opposite side is provided with discharging opening 11, and the bottom of drying baker 6 connects hot blast feeding system, the top of drying baker 6
It is provided with gas outlet 14, and gas outlet 14 is connected with dust arrester, blower unit successively, and the outer wall of drying baker 6 is additionally provided with microwave
Generating means；
The distribution grid 8 of drying baker 6 bottom surface is provided with through hole, and being provided with several in drying baker 6 can separate drying baker 6 inner chamber
Become the dividing plate 13 of multiple hothouse, the lower section of each hothouse be equipped with one at the bottom of funnelform cone 7, at the bottom of described cone 7 big
Mouth end is connected by the through hole on distribution grid 8 with corresponding hothouse 6, and the osculum end at the cone end 7 is all connected with hot blast feeding system；
Described hot blast feeding system includes the ajutage 5 of the aerator 1, heater 2 and several parallel connections that are sequentially connected, institute
State ajutage 5 to connect one by one with the osculum end at the cone end 7；
Described microwave generating apparatus includes the microwave generator 12 being laid on each hothouse wall respectively, and microwave is sent out
The airtight wall through hothouse in guided wave chamber of raw device 12 front end, microwave generator is all connected with power governor 20.
The charging aperture 9 of drying baker 6 is connected with feed screw 10, is provided with blocking valve 19 at the discharging opening 11 of drying baker 6.Go out
It is provided with blocking valve 19 at material mouth 11, both can realize the continuous drying of material, microwave can be prevented again in dry run from drying baker 6
Leak at discharging opening 11, cause safety problem.
The inwall of described drying baker 6 has chute along short transverse, and the both sides of described dividing plate 13 are slidably disposed on cunning
On groove.
Described ajutage 5 is provided with volume damper 4.
It is equipped with the first Chain Link Fence 3 along cross section in described ajutage 5.First metal protecting wire net 3 prevents microwave from dry
The front end leakage of dry case 6.
Microwave generator 12 on each hothouse is arranged in pairs, and every pair of microwave generator 12 is co-axially located at hothouse
6 relative both sides.And the power Independent adjustable of each pair of microwave generator 12.
Described dust arrester includes cyclone separator 15 and the sack cleaner 17 being connected, and described blower unit is air inducing
Machine 18, described cyclone separator 15 is connected with drying baker 6 gas outlet 14, and sack cleaner 17 is connected with air-introduced machine 18, described rotation
It is equipped with the second Chain Link Fence 16 along cross section in connection pipeline between wind separator 15 and sack cleaner 17.Second gold medal
Belonging to protection network 16 prevents microwave from leaking from the tail end of drying baker 6.By air inducing after waste gas removing dust device dedusting in gas outlet 14
Machine 18 is discharged.
The top half of described drying baker 6 is provided with expanding reach 21, and the cross-sectional area of the drying baker of described expanding reach 21 is more than
The cross-sectional area of drying baker 6 the latter half.
There is horizontally disposed distribution grid 8 bottom drying baker 6, be provided with the cone end 7 below distribution grid 8, above distribution grid 8, use dividing plate
Casing is separated into 2～20 hothouses by 13.
The charging aperture 9 of drying baker 6 is connected with feed screw 10, and the present invention realizes automatically entering by feed screw 10
Material.
During dry materials, can be adjusted by regulation power according to the temperature needed for wet stock in each little hothouse
Joint device 20 controls the microwave drying power of each hothouse.
Described distribution grid 8 is rectangle opening steel plate, and distribution grid 8 is horizontally set on the bottom of drying baker 6, and distribution grid 8 is opened
Porosity is 2%～15%, and aperture is 0.5～2.0mm.
Described dividing plate 13 is slidably vertically above distribution grid 8 so that dividing plate 13 Height Adjustable, thus regulates
Bed height and residence time of material, to meet the dry demand of different material.
Described expanding reach 21 is positioned at the top of drying baker 6, arranges expanding reach 21 and can reduce wind speed, makes more than certain grain
The granule in footpath settles back into bed, alleviates the load of thin powder recovery equipment.
The operation principle of the present invention is: wet stock enters in the hothouse that charging aperture 9 is nearest through feed screw 10,
Material in hothouse in fluidization, and can flow to Way out under hot blast effect.The hot blast that hot blast feeding system provides
In ajutage 5, the cone end 7, distribution grid 8 enter each hothouse of drying baker 6, material is carried out preliminarily dried；Microwave generator
12 launch microwave is dried, and material is dried under fluidized state, improves the uniformity of microwave heating, utilizes microwave to provide heat
Amount, carries out uniform, stable being further dried to material, overcomes and only relies on hot air drying and can not meet wet stock and be dried required
The shortcoming of heat, and power governor 20 can be according to the different drying stage of material, the microwave of each hothouse of flexible is done
Dry power.The waste gas produced in dry run escapes from gas outlet 14, and is discharged by air-introduced machine 18 after removing dust device dedusting.
Dried material is discharged by discharging opening 11.
Content described in this specification embodiment is only enumerating of the way of realization to inventive concept, the protection of the present invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies means.
Claims (8)
1. a microwave horizontal multi-cell fluidized bed drying device, it is characterised in that: include that drying baker, the side of described drying baker set
Having charging aperture, opposite side to be provided with discharging opening, the bottom of drying baker connects hot blast feeding system, and the top of drying baker is provided with gives vent to anger
Mouthful, and gas outlet is connected with dust arrester, blower unit successively, and the outer wall of drying baker is additionally provided with microwave generating apparatus；
The distribution grid of drying baker bottom surface is provided with through hole, is provided with several and can be separated into by drying baker inner chamber multiple dry in drying baker
The dividing plate of dry room, the lower section of each hothouse be equipped with one at the bottom of funnelform cone, the big opening end at the bottom of described cone is with corresponding
Hothouse is connected by the through hole on distribution grid, and the osculum end at the cone end is all connected with hot blast feeding system；
Described hot blast feeding system includes the ajutage of the aerator, heater and several parallel connections that are sequentially connected, described air-supply
Manage the osculum end with the cone end to connect one by one；
Described microwave generating apparatus includes the microwave generator being laid on each hothouse wall respectively, and before microwave generator
The airtight wall through hothouse in guided wave chamber of end, microwave is sent out and is all connected with power governor.
2. a kind of microwave horizontal multi-cell fluidized bed drying device as claimed in claim 1, it is characterised in that: the charging of drying baker
Mouth is connected with feed screw, and the discharge outlet of drying baker is provided with blocking valve.
3. a kind of microwave horizontal multi-cell fluidized bed drying device as claimed in claim 2, it is characterised in that: described drying baker
Inwall has chute along short transverse, and the both sides of described dividing plate are slidably disposed on chute.
4. a kind of microwave horizontal multi-cell fluidized bed drying device as claimed in claim 3, it is characterised in that: on described ajutage
It is provided with volume damper.
5. a kind of microwave horizontal multi-cell fluidized bed drying device as claimed in claim 4, it is characterised in that: in described ajutage
It is equipped with the first Chain Link Fence along cross section.
6. a kind of microwave horizontal multi-cell fluidized bed drying device as claimed in claim 5, it is characterised in that: described dust arrester
Including the cyclone separator being connected and sack cleaner, described blower unit is air-introduced machine, and described cyclone separator is with dry
Case gas outlet is connected, and sack cleaner is connected with air-introduced machine, the connection pipeline between described cyclone separator and sack cleaner
Interior it is equipped with the second Chain Link Fence along cross section.
7. a kind of microwave horizontal multi-cell fluidized bed drying device as claimed in claim 6, it is characterised in that: described drying baker
Top half is provided with expanding reach, and the cross-sectional area of the drying baker of described expanding reach is more than the cross-sectional area of drying baker the latter half.
8. a kind of microwave horizontal multi-cell fluidized bed drying device as claimed in claim 7, it is characterised in that: on each hothouse
Microwave generator be arranged in pairs, every pair of microwave is co-axially located at the both sides that hothouse is relative, and each pair of microwave generator
Power Independent adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579819.7A CN106123492B (en) | 2016-07-19 | 2016-07-19 | A kind of horizontal multi-cell fluidized bed drying device of microwave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579819.7A CN106123492B (en) | 2016-07-19 | 2016-07-19 | A kind of horizontal multi-cell fluidized bed drying device of microwave |
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| CN106123492A true CN106123492A (en) | 2016-11-16 |
| CN106123492B CN106123492B (en) | 2019-05-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
| CN111023704A (en) * | 2019-12-23 | 2020-04-17 | 济南岳丰能源科技有限公司 | Drying system and process for high chlorinated polyethylene resin |
| CN111213482A (en) * | 2020-02-26 | 2020-06-02 | 江苏大学 | Grain tank and harvester with real-time monitoring and dehumidification functions of storage state during harvesting |
| CN111854375A (en) * | 2020-07-27 | 2020-10-30 | 北京金辉景新节能科技有限公司 | Vacuum microwave dewatering equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
| CN109210870B (en) * | 2018-09-06 | 2023-11-28 | 浙江工业大学 | Drying equipment and drying method for annular inert particle fluidized bed |
| CN111023704A (en) * | 2019-12-23 | 2020-04-17 | 济南岳丰能源科技有限公司 | Drying system and process for high chlorinated polyethylene resin |
| CN111023704B (en) * | 2019-12-23 | 2021-05-07 | 济南岳丰能源科技有限公司 | Drying system and process for high chlorinated polyethylene resin |
| CN111213482A (en) * | 2020-02-26 | 2020-06-02 | 江苏大学 | Grain tank and harvester with real-time monitoring and dehumidification functions of storage state during harvesting |
| CN111854375A (en) * | 2020-07-27 | 2020-10-30 | 北京金辉景新节能科技有限公司 | Vacuum microwave dewatering equipment |
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| CN106123492B (en) | 2019-05-31 |
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