CN110608597A - Microwave drying device integrating preheating and strong wind heat dissipation - Google Patents
Microwave drying device integrating preheating and strong wind heat dissipation Download PDFInfo
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- CN110608597A CN110608597A CN201911040506.4A CN201911040506A CN110608597A CN 110608597 A CN110608597 A CN 110608597A CN 201911040506 A CN201911040506 A CN 201911040506A CN 110608597 A CN110608597 A CN 110608597A
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- bin
- microwave drying
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- 238000001035 drying Methods 0.000 title claims abstract description 71
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 55
- 238000005192 partition Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 235000012255 calcium oxide Nutrition 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000007791 dehumidification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
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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
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a microwave drying device integrating preheating and strong wind heat dissipation, which comprises a belt conveyor, wherein a preheating bin is arranged at the starting end of the belt conveyor, the microwave drying bin is fixedly connected with the preheating bin, and at least one microwave generator is fixed on the upper side in a microwave heating box; the spiral distributing device is arranged at the joint of the preheating bin and the microwave drying bin, and the heat collecting tube is sequentially connected with a dehumidifying device and an axial flow fan in series; the strong fan is arranged below the belt conveyor, and the control cabinet is respectively connected with the belt conveyor, the microwave generator, the axial flow fan or the strong fan. The microwave drying device adopts a microwave heating technology to dry materials, and can realize the rapid drying of the materials through microwaves. This device is drying the material in-process, in time dispels the heat and dehumidifies the commodity circulation in the microwave drying storehouse to in returning the heat that gives off in the microwave drying storehouse to the storehouse of preheating, preheating the material in the storehouse of preheating, improve energy utilization.
Description
Technical Field
The invention relates to the technical field of microwave heating, in particular to a microwave drying device integrating preheating and strong wind heat dissipation.
Background
The microwave heating technology is related technology for heating material based on the principle that the absorption of microwave energy by material is the result of the interaction between polar molecules in material and microwave electromagnetic field, and under the action of external alternating electromagnetic field, the polar molecules in material are polarized and alternate oriented with the change of polarity of external alternating electromagnetic field, so that many polar molecules are frequently rubbed and lost to convert electromagnetic energy into heat energy. The microwave heating is completely different from the traditional heating mode, and is a process of making the heated material itself be a heating body without heat conduction.
The traditional material heating method generally adopts heat generated by fuel combustion or electric energy to heat materials, and the defects of uneven heating, slow heat exchange speed, low heating efficiency and the like exist when the materials are heated by adopting the mode. The microwave heating can well solve the problems of uneven material heating and low heating efficiency, and simultaneously can well play a role in reducing energy consumption,
microwave heating device on the existing market generally adopts pure microwave heating device to heat the material, but the heat efficiency of this kind of device is not high, can not make full use of the heat that gives off in the microwave heating process, simultaneously, also is not good to the radiating effect in the material heating process, can not be timely with the material surface heat or the steam that gives off in the heating process in time get rid of, lead to heating effect not good.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a microwave drying device with preheating and strong wind heat dissipation.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
the utility model provides a collection preheats and radiating microwave drying device of strong wind, includes:
the belt conveyor is used for conveying materials to be dried;
the preheating bin is arranged at the starting end of the belt conveyor, a feeding hopper is arranged above the preheating bin, a discharging port is formed in the bottom of the feeding hopper, and the discharging port is connected with the top of the preheating bin;
the microwave drying bin is fixedly connected with the preheating bin and arranged along the transmission direction of the belt conveyor, the belt conveyor penetrates through the microwave drying bin and comprises a plurality of microwave heating boxes which are sequentially arranged in a row and fixedly connected, and at least one microwave generator is fixed on the upper side in each microwave heating box;
the spiral distributing device is arranged at the joint of the preheating bin and the microwave drying bin and is used for uniformly distributing material flow on the belt conveyor;
the heat collecting device comprises a heat collecting pipe arranged at the top of the microwave drying bin, one end of the heat collecting pipe is fixedly connected with the top of the microwave drying bin, the other end of the heat collecting pipe is fixedly connected with the preheating bin, and a dehumidifying device and an axial flow fan are sequentially connected on the heat collecting pipe in series;
the strong air heat dissipation device comprises a plurality of strong air blowers arranged at the bottom of the microwave drying bin, and the strong air blowers are arranged below the belt conveyor and used for blowing air to dissipate heat of material flow transmitted to the belt conveyor from bottom to top;
the control cabinet is respectively connected with the belt conveyor, the microwave generator, the axial-flow fan or the strong fan, and control keys for controlling the start and stop of the belt conveyor, the microwave generator, the axial-flow fan or the strong fan are arranged on the control cabinet.
Further, the spiral distributing device comprises a frame body which is arranged at the bottom of the preheating bin and located on an upper layer belt of the belt conveyor, the frame body is fixed at the joint of the preheating bin and the microwave drying bin, one end, close to the microwave drying bin, of the frame body is rotatably connected with a spiral shaft, the spiral shaft is perpendicular to the transmission direction of the belt conveyor, a spiral is arranged on the outer wall of the spiral shaft, and the spiral shaft is connected with a driving device.
Furthermore, the driving device comprises a motor and a speed reducer, a driving gear is arranged on an output shaft of the speed reducer, a driven gear is connected to one end of the spiral shaft, the driving gear is meshed with the driven gear, and the spiral shaft is driven to rotate through the driving gear and the driven gear.
Further, dehydrating unit includes a dehumidification medium section of thick bamboo, the both ends of a dehumidification medium section of thick bamboo respectively with the thermal-collecting tube is connected, be equipped with moisture-absorbing medium in the dehumidification medium section of thick bamboo, moisture-absorbing medium includes one in calcium chloride, quick lime or the charcoal.
Furthermore, every the upper portion fixed mounting of microwave heating box has a division board, microwave generator installs the top of division board, the division board will the inner space partition of microwave heating box is the microwave generation district on upper portion and the microwave zone of heating of lower part, band conveyer runs through the microwave zone of heating.
Furthermore, a support frame for supporting the microwave heating box is arranged at the lower part of the microwave heating box, and two side plates are respectively arranged at two sides of the support frame.
Further, the bottom of the belt conveyor is provided with at least one vibrator, and the vibrator is arranged at the bottom of an upper-layer belt of the conveying belt.
Further, the vibrator includes pillar, spring, vibration board, roller and vibrating motor, the vibration board sets up the below of band conveyer's upper belt, the top of vibration board is rotated and is connected with a plurality of rollers, the roller with band conveyer's upper belt's lower surface roll connection, the bottom fixed mounting of vibration board has vibrating motor, install respectively in the bottom both sides of vibration board the pillar, the vibration board with install between the pillar the spring, the upper and lower both ends of spring respectively with the vibration board or pillar fixed connection, the pillar is fixed on band conveyer's the frame or be fixed on the microwave heating box.
Furthermore, a kick-out device is arranged below the loading hopper and comprises a rotating shaft and kick-out claws, two ends of the rotating shaft are rotatably connected with the side wall of the loading hopper, and 3-4 kick-out claws are fixedly mounted on the rotating shaft.
The invention has the beneficial effects that:
according to the microwave drying device integrating preheating and strong wind heat dissipation, the microwave heating technology is adopted to dry materials, the microwave drying device has the characteristics of energy conservation, uniform heating and high drying efficiency, and the materials can be quickly dried through microwaves. This device is drying the material in-process, in time dispels the heat and dehumidifies the commodity circulation in the microwave drying storehouse to in returning the heat that gives off in the microwave drying storehouse to the storehouse of preheating, preheating the material in the storehouse of preheating, improve energy utilization. Meanwhile, the microwave drying bin of the device is formed by a plurality of continuously arranged microwave heating boxes, materials are transmitted in the microwave heating bin through the conveying device at one time, and the drying process can be completed, so that the device is efficient and energy-saving.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a vibrator according to an embodiment of the present invention;
FIG. 4 is a schematic view of the internal structure of a hopper according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an auger according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an observation window according to an embodiment of the present invention.
In the figure: 1-belt conveyer, 101-driving roller, 102-driven roller, 103-conveying belt 103, 104-carrier roller, 2-preheating bin, 3-charging hopper, 4-discharging port, 5-kick-out device, 6-microwave drying bin, 7-microwave heating box, 8-microwave generator, 9-supporting frame, 10-side plate, 11-separation plate, 12-spiral distributor, 13-frame, 14-spiral shaft, 15-spiral, 16-driving gear, 17-driven gear, 18-vibrator, 19-supporting column, 20-spring, 21-vibration plate, 22-ball, 23-vibration motor, 24-heat collecting pipe, 25-dehumidification device, 26-fan, 27-forced fan, 28-control cabinet, 29-observation window, 30-observation door and 31-handle.
Detailed Description
The present invention is further described in conjunction with the appended drawings so that the advantages and features of the present invention may be more readily understood by those skilled in the art and the scope of the invention will be more clearly defined.
As shown in figures 1-6 of the drawings,
the utility model provides a collection preheats and radiating microwave drying device of strong wind, includes:
a band conveyer 1 for carrying out material transmission, band conveyer 1 includes the cylinder, bearing roller and conveyer belt, the conveyer belt is Teflon net conveyer belt, the cylinder includes initiative cylinder 101 and passive cylinder 102, the winding has conveyer belt 103 on initiative cylinder 101 and the driven cylinder 102, initiative cylinder 101 is connected with motor and speed reducer, initiative cylinder 101 and passive cylinder 102 set up the both ends at band conveyer 1, bearing roller 104 arranges the setting in proper order along band conveyer 1's direction of transmission, bearing roller 104 sets up the bottom of the upper belt of conveyer belt 103 and is used for bearing conveyer belt 103.
The preheating bin 2 is arranged at the starting end of the belt conveyor 1, a feeding hopper 3 is arranged above the preheating bin 2, a discharging port 4 is arranged at the bottom of the feeding hopper 3, and the discharging port 4 is connected with the upper end of the preheating bin; a kick-out device 5 is arranged below the charging hopper 3, the kick-out device 5 comprises a rotating shaft and kick-out claws, two ends of the rotating shaft are rotatably connected with the side wall of the charging hopper 3, and 3-4 kick-out claws are fixedly arranged on the rotating shaft. The pivot is connected with the rotation motor, and it is rotatory to drive pivot through rotating the motor to drive setting gauge 5 rotatory, dial the material, make the material can be smooth fall into preheating bin 2 from discharge gate 4 of loading hopper 3.
The microwave drying bin 6 is fixedly connected with the preheating bin 2 and arranged along the transmission direction of the belt conveyor 1, the belt conveyor penetrates through the microwave drying bin 6, the microwave drying bin 6 comprises a plurality of microwave heating boxes 7 which are sequentially arranged in a row and fixedly connected, and at least one microwave generator 8 is fixed on the upper side inside each microwave heating box 7; the microwave generator 8 comprises a microwave tube and a microwave tube power supply, wherein the microwave tube power supply is used for converting common alternating current power into direct current power so as to create conditions for the operation of the microwave tube. The microwave tube is the core of a microwave generator, and can provide stable continuous wave microwave power by converting direct current electric energy into microwave energy. Microwave heating box 7 adopts the portion steel to make, and microwave heating box 7's inboard can set up the heated board, can be used for keeping the temperature in the microwave drying storehouse, improves drying efficiency.
The lower part of the microwave heating box 7 is provided with a supporting frame 9 for supporting the microwave heating box, two sides of the supporting frame 9 are respectively provided with a side plate 10, the bottom of the microwave heating box 7 can be sealed through the side plates 10 to keep the temperature, the safety of materials in the transmission process in a microwave drying bin can be improved, and people injury is prevented.
A partition plate 11 is fixedly installed at the upper portion of each microwave heating box 7, the microwave generator 8 is installed above the partition plate 11, and the partition plate 11 divides the internal space of the microwave heating box 7 into an upper microwave generating region and a lower microwave heating region. The microwave tube and the microwave tube power supply are arranged above the partition plate 11, a plurality of through holes can be arranged on the partition plate 11, and the microwave tube can pass through the through holes on the partition plate to carry out microwave heating on the microwave heating area at the bottom of the microwave heating box 7.
The spiral material distributor 12 is arranged at the joint of the preheating bin 2 and the microwave drying bin 6 and is used for uniformly distributing material flow on the belt conveyor 1; the spiral material distributor 12 comprises a frame body 13 which is arranged at the bottom of the preheating bin and is positioned on an upper belt of the belt conveyor 1, the frame body 13 is fixed at the joint of the preheating bin 2 and the microwave drying bin 6, one end of the frame body 13, which is close to the microwave drying bin 6, is rotatably connected with a spiral shaft 14, the spiral shaft 14 is connected with a driving device, the spiral shaft 14 is perpendicular to the transmission direction of the belt conveyor 1, and a spiral 15 is arranged on the outer wall of the spiral shaft 14.
The driving device comprises a motor and a speed reducer, a driving gear 16 is arranged on an output shaft of the speed reducer, a driven gear 17 is connected to one end of the spiral shaft 14, the driving gear 16 is meshed with the driven gear 17, and the spiral shaft 14 is driven to rotate through the driving gear 16 and the driven gear 17.
The bottom of the belt conveyor 1 is provided with at least one vibrator 18, the vibrator 18 being arranged at the bottom of the upper belt of the conveyor belt 103. The number of vibrators 18 is at least two.
The vibrator 18 comprises a support column 19, a spring 20, a vibration plate 21, rollers 22 and a vibration motor 23, wherein the vibration plate 21 is arranged below an upper-layer belt of the conveying belt 103, the rollers 22 are rotatably connected above the vibration plate 21, the rollers 22 are in rolling connection with the lower surface of the upper-layer belt of the conveying belt 103, the vibration motor 23 is fixedly arranged at the bottom of the vibration plate 21, the support columns 19 are respectively arranged on two sides of the bottom of the vibration plate 21, the spring 20 is arranged between the vibration plate 21 and the support columns 19, the upper end and the lower end of the spring 20 are respectively fixedly connected with the vibration plate 21 or the support columns 19, and the support columns 19 are fixed on a frame of the belt conveyor.
The heat collecting device comprises a heat collecting pipe 24 arranged at the top of the microwave drying bin 6, one end of the heat collecting pipe 24 is fixedly connected with the top of the microwave drying bin 6, the other end of the heat collecting pipe 24 is fixedly connected with the preheating bin 2, and a dehumidifying device 25 and an axial flow fan 26 are sequentially connected on the heat collecting pipe 24 in series; the dehumidifying device 25 comprises a dehumidifying medium cylinder, two ends of the dehumidifying medium cylinder are respectively connected with the heat collecting pipes 24, moisture absorbing media are arranged in the dehumidifying medium cylinder, and the moisture absorbing media comprise one of calcium chloride, quick lime or charcoal.
The strong wind heat dissipation device comprises a plurality of strong wind machines 27 arranged at the bottom of the microwave drying bin 6, wherein the strong wind machines 27 are arranged below the belt conveyor 1 and used for blowing and dissipating heat of material flows transmitted to the belt conveyor 1 from bottom to top;
the control cabinet 28 is respectively connected with the belt conveyor 1, the microwave generator 8, the axial-flow fan 26 or the strong fan 27, and a control key for controlling the start and stop of the belt conveyor 1, the microwave generator 8, the axial-flow fan 26 or the strong fan 27 is arranged on the control cabinet 28.
According to the invention, the materials are dumped into the preheating bin 2 through the charging hopper 3, and are preheated through the heat transmitted into the preheating bin 2 in the air collecting pipe 24 in the process that the materials descend onto the belt conveyor 1, so that the energy utilization rate is improved.
After the material descends to belt conveyor 1, because thickness is inhomogeneous, consequently the material accumulates in framework 13 under the effect of spiral distributing device 12 to under the effect of rotation and spiral 15 through screw axis 14, with the material again enter into microwave drying storehouse 6 after evenly distributing on belt conveyor 1 and dry, the stoving effect is more even, and the effect is better. The uniformity of the material passing through microwave heating on the next step is improved, and the problem that the material is not high in product quality due to inconsistent product phase after passing through microwave heating caused by inconsistent heating of microwave heating is avoided.
After the materials are dried by the microwave drying bin 6, the materials are unloaded from the belt conveyor 1 after the microwave drying is finished, and the materials are boxed or bagged.
When the materials are dried by microwave, the strong air blower 27 blows air to the upper part of the belt conveyor 1 to blow away moisture on the surfaces of the materials, so that the heat dissipation of the surfaces of the materials is facilitated, meanwhile, the heat can enter the air collecting pipe 24, the strong air blows from the bottom of the belt conveyor 1 from bottom to top, and the strong air dehumidifies and dissipates the heat of the materials conveyed on the belt conveyor 1; under the action of the axial flow fan 26 on the heat collecting pipe 24, the hot air enters the preheating bin 2 through the heat collecting pipe 24 after being dehumidified to preheat the material.
Meanwhile, the bottom of the belt conveyor 1 is also provided with a vibrator 18, a vibration plate 21 of the vibrator 18 vibrates up and down under the action of a vibration motor 23 to vibrate the upper-layer conveying belt of the belt conveyor 1, and in order to enable the connection between the vibrator 18 and the conveying belt to be smoother, a roller 22 is rotatably connected above the vibration plate 21, and the roller 22 is in rolling connection with the upper-layer conveying belt; through the vibration of the vibrator 18, the materials on the belt conveyor 1 vibrate up and down in the conveying process, so that the effect of turning over the materials is achieved, and the materials can be dried more uniformly.
Meanwhile, in order to observe whether the device works normally or observe the drying quality of the materials at any time in the drying process of the materials,
an observation window 29 may be provided on a side wall inside the microwave heating box 7, and the height of the observation window 29 is the same as that of the upper layer conveyor belt of the belt conveyor 1. The observation window 29 is used for observing the working process in the microwave drying bin and monitoring whether the physical drying process is normal. The observation window 29 is provided with an observation door 30, the observation door 30 is hinged with the observation window 29, the observation window 29 is provided with a self-locking switch, the self-locking switch is connected with the control cabinet, when the observation door 30 is opened from the observation window 29, the self-locking switch is disconnected, and the control cabinet detects the disconnection of the self-locking switch to control the microwave drying device to stop.
The observation window 29 is provided with the observation door 30, the observation door 30 is in a closed state during normal work, the observation window 29 is provided with the self-locking switch, the self-locking switch is connected with the control cabinet, when the observation door 30 is closed on the observation window, the microwave heating device works normally, and when the observation door 30 is opened from the observation window 29, the control cabinet detects an opening signal of the self-locking switch and controls the microwave heating device to stop. Through set up self-locking switch on the observation window, when can avoiding the observation door to open, drying device starts and causes the injury to the staff.
The observation door 30 is provided with a high temperature resistant glass observation mirror, and the observation door 30 is also provided with a handle 31. The high temperature resistant glass on the observation door 30 is convenient for checking the working condition in the microwave drying bin, and the working condition in the microwave drying bin can be conveniently checked without opening the observation door 30.
The above description is only exemplary of the present invention, and not intended to limit the present invention, and any modifications, equivalents, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Other technical features than those described in the specification are known to those skilled in the art, and are not described in detail herein in order to highlight the novel features of the present invention.
Claims (9)
1. The utility model provides a collection preheats and radiating microwave drying device of strong wind which characterized in that includes:
the belt conveyor is used for conveying materials to be dried;
the preheating bin is arranged at the starting end of the belt conveyor, a feeding hopper is arranged above the preheating bin, a discharging port is formed in the bottom of the feeding hopper, and the discharging port is connected with the top of the preheating bin;
the microwave drying bin is fixedly connected with the preheating bin and arranged along the transmission direction of the belt conveyor, the belt conveyor penetrates through the microwave drying bin and comprises a plurality of microwave heating boxes which are sequentially arranged in a row and fixedly connected, and at least one microwave generator is fixed on the upper side in each microwave heating box;
the spiral distributing device is arranged at the joint of the preheating bin and the microwave drying bin and is used for uniformly distributing material flow on the belt conveyor;
the heat collecting device comprises a heat collecting pipe arranged at the top of the microwave drying bin, one end of the heat collecting pipe is fixedly connected with the top of the microwave drying bin, the other end of the heat collecting pipe is fixedly connected with the preheating bin, and a dehumidifying device and an axial flow fan are sequentially connected on the heat collecting pipe in series;
the strong air heat dissipation device comprises a plurality of strong air blowers arranged at the bottom of the microwave drying bin, and the strong air blowers are arranged below the belt conveyor and used for blowing air to dissipate heat of material flow transmitted to the belt conveyor from bottom to top;
the control cabinet is respectively connected with the belt conveyor, the microwave generator, the axial-flow fan or the strong fan, and control keys for controlling the start and stop of the belt conveyor, the microwave generator, the axial-flow fan or the strong fan are arranged on the control cabinet.
2. The microwave drying device with preheating and strong wind heat dissipation functions as claimed in claim 1, wherein the spiral distributor comprises a frame body disposed at the bottom of the preheating bin and on the upper belt of the belt conveyor, the frame body is fixed at the joint of the preheating bin and the microwave drying bin, one end of the frame body close to the microwave drying bin is rotatably connected with a spiral shaft, the spiral shaft is perpendicular to the transmission direction of the belt conveyor, a spiral is disposed on the outer wall of the spiral shaft, and the spiral shaft is connected with a driving device.
3. The microwave drying device with preheating and strong wind heat dissipation functions as claimed in claim 2, wherein the driving device comprises a motor and a speed reducer, a driving gear is disposed on an output shaft of the speed reducer, a driven gear is connected to one end of the screw shaft, the driving gear is engaged with the driven gear, and the screw shaft is driven to rotate by the driving gear and the driven gear.
4. The microwave drying device with preheating and strong wind heat dissipation functions as claimed in claim 1, wherein the dehumidifying device comprises a dehumidifying medium cylinder, two ends of the dehumidifying medium cylinder are respectively connected with the heat collecting pipes, a moisture absorbing medium is arranged in the dehumidifying medium cylinder, and the moisture absorbing medium comprises one of calcium chloride, quicklime or charcoal.
5. The microwave drying apparatus with preheating and strong wind heat dissipation functions as claimed in claim 1, wherein a partition plate is fixedly installed at an upper portion of each microwave heating box, the microwave generator is installed above the partition plate, the partition plate divides an inner space of the microwave heating box into an upper microwave generating region and a lower microwave heating region, and the belt conveyor penetrates through the microwave heating regions.
6. The microwave drying device with preheating and strong wind heat dissipation functions as claimed in claim 5, wherein a supporting frame for supporting the microwave heating box is disposed at the lower portion of the microwave heating box, and two side plates are disposed at two sides of the supporting frame respectively.
7. The microwave drying device with preheating and strong wind heat dissipation functions as claimed in claim 1, wherein at least one vibrator is disposed at the bottom of the belt conveyor, and the vibrator is disposed at the bottom of the upper belt of the conveyor belt.
8. The microwave drying device with preheating and strong wind heat dissipation functions as claimed in claim 7, wherein the vibrator comprises a support, a spring, a vibrating plate, rollers and a vibrating motor, the vibrating plate is arranged below an upper belt of the belt conveyor, a plurality of rollers are rotatably connected above the vibrating plate, the rollers are in rolling connection with a lower surface of the upper belt of the belt conveyor, the vibrating motor is fixedly mounted at the bottom of the vibrating plate, the support is respectively mounted on two sides of the bottom of the vibrating plate, the spring is mounted between the vibrating plate and the support, upper and lower ends of the spring are respectively fixedly connected with the vibrating plate or the support, and the support is fixed on a frame of the belt conveyor or on the microwave heating box.
9. The microwave drying device with preheating and strong wind heat dissipation functions as claimed in claim 1, wherein a kick-out device is disposed below the loading hopper, the kick-out device includes a rotating shaft and kick-out claws, two ends of the rotating shaft are rotatably connected to the side wall of the loading hopper, and 3-4 kick-out claws are fixedly mounted on the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040506.4A CN110608597A (en) | 2019-10-29 | 2019-10-29 | Microwave drying device integrating preheating and strong wind heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040506.4A CN110608597A (en) | 2019-10-29 | 2019-10-29 | Microwave drying device integrating preheating and strong wind heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110608597A true CN110608597A (en) | 2019-12-24 |
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| CN201911040506.4A Pending CN110608597A (en) | 2019-10-29 | 2019-10-29 | Microwave drying device integrating preheating and strong wind heat dissipation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912175A (en) * | 2020-09-10 | 2020-11-10 | 连云港秉文科技有限公司 | Drying device for silicon carbide micro powder |
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