CN213578384U - Intermittent type formula microwave dryer of board prickly ash - Google Patents
Intermittent type formula microwave dryer of board prickly ash Download PDFInfo
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- CN213578384U CN213578384U CN202022764210.1U CN202022764210U CN213578384U CN 213578384 U CN213578384 U CN 213578384U CN 202022764210 U CN202022764210 U CN 202022764210U CN 213578384 U CN213578384 U CN 213578384U
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Abstract
The utility model provides a plate pepper intermittent microwave dryer, which comprises at least two sections of tunnel cavities which are connected in sequence, wherein at least one group of drying and cooling devices are arranged in each stage of tunnel cavity; the drying and cooling device comprises a microwave drying cavity and a material cooling cavity which are sequentially arranged; and a pushing device capable of pushing the material conveying disc from the previous section of tunnel cavity to the next section of tunnel cavity is arranged between the two sections of tunnel cavities which are connected in sequence. The utility model provides a board hot pepper intermittent type formula microwave dryer can carry out intermittent type formula drying to the board hot pepper, can effectively guarantee board hot pepper drying quality when guaranteeing drying efficiency.
Description
Technical Field
The utility model relates to a microwave drying device technical field, in particular to board pepper intermittent type formula microwave dryer.
Background
The traditional drying method is external heating drying, the surface of the material absorbs heat and then conducts and permeates into the material, and the temperature inside the material is raised to realize drying. The microwave drying is internal heating, the wet material is in a microwave high-frequency electric field with a very short oscillation period, internal water molecules are polarized and are regularly arranged along the direction of the microwave electric field, then violent collision and friction are generated along with the interactive change of the direction of the high-frequency alternating electric field, and the collision and friction cause the temperature of the water molecules to rise and leave the material. The microwave drying has the advantages of high drying speed, small change of product quality and less heat loss.
Present microwave drying device is mostly continuous drying, like patent CN209185681U discloses a mushroom microwave drying equipment, including feeding table, feeder hopper, conveyer belt, heating cabinet, relief valve, manometer, blast pipe, in the material conveys into the heating cabinet through first conveyer belt, the heating cabinet lasts the drying to the material, and the material conveys away through the second conveyer belt after the drying is accomplished, and whole drying process material is in and lasts the high temperature state.
The fruit of the zanthoxylum piperitum is in a shape of a long claw, the surface of the fruit is smooth and thick, the peel is dark red, the fruit surface is easy to crack by adopting high-temperature drying, the color becomes dark and light, and the nutrient content is seriously lost. If the continuous drying device is adopted for drying the plate peppers, the heating temperature of the plate peppers is too high, and when the temperature is higher than 80 ℃, the plate peppers are boiled, so that the drying quality of the plate peppers is greatly reduced, and the color and the nutrition of the plate peppers are damaged.
SUMMERY OF THE UTILITY MODEL
The utility model provides a board hot pepper intermittent type formula microwave dryer can carry out intermittent type formula drying to the board hot pepper, can effectively guarantee board hot pepper drying quality when guaranteeing drying efficiency.
In order to realize the technical purpose, the technical effect is achieved, and the utility model discloses a following technical scheme solves above-mentioned problem:
an intermittent microwave dryer for plate peppers comprises at least two sections of tunnel cavities which are connected in sequence, wherein at least one group of drying and cooling devices are arranged in each stage of tunnel cavity; the drying and cooling device comprises a microwave drying cavity and a material cooling cavity which are sequentially arranged, wherein a microwave generator and a temperature sensor are arranged on the inner wall of the microwave drying cavity; air exhaust devices are arranged on the cavity walls of the microwave drying cavity and the material cooling cavity;
the bottom of the tunnel cavity is provided with a material conveying device, a conveying chain of the material conveying device penetrates through the tunnel cavity, and the material conveying disc is placed on the conveying chain and is conveyed forwards along with the conveying chain; and a pushing device which can push the material conveying disc at the tail end of the previous section of tunnel cavity to the head end of the next section of tunnel cavity is arranged between the two sections of tunnel cavities which are connected in sequence.
In the above scheme, a multi-stage drying system is arranged, and each stage of drying system comprises a tunnel cavity, a drying and cooling device and a material conveying device. The material conveying device carries the material to enter the tunnel cavity, and after drying and cooling are carried out through the drying and cooling device, the material is pushed to the next-stage drying system through the pushing device. The quantity, the drying temperature and the conveying speed of the drying cooling devices of each stage of drying system are independently controlled, the running speed, the drying temperature and the drying time of the material conveying device can be adjusted according to the process requirements, and the phenomena that the hot pepper is boiled or insufficiently dried after the temperature is over are avoided.
The drying and cooling device adopts the alternate arrangement of the microwave drying cavity and the material cooling cavity, and the intermittent drying can prevent the plate pepper from being dried for too long time and the temperature from being raised too high, and can further prevent the plate pepper from being boiled when the temperature is too high.
Furthermore, the microwave drying cavity has a certain height, the top of the microwave drying cavity is in a rotating parabolic structure, and the microwave generator is arranged at the focus of the paraboloid. The microwave generator is arranged at the focus of the revolution paraboloid, so that microwave rays are reflected by the revolution paraboloid to be as vertical and downward as possible and are uniformly distributed, microwave leakage can be greatly reduced, and the utilization rate of microwaves is improved.
Furthermore, a hole pricking roller wheel is arranged at the head end of the first section of the tunnel cavity, and the hole pricking roller wheel is driven by a motor to prick the plate peppers in the material conveying disc. Pricking holes on the surface of the plate pepper can damage the wax layer on the surface of the plate pepper, and is beneficial to discharging water.
Further, pusher is including locating the connection chamber between two tunnel chambeies, connects the intracavity and sets up horizontal roller group, and last one section tunnel chamber tail end roof sets up the cylinder and extends to connecting the chamber, and cylinder expansion end rigid coupling is used for promoting the charging tray shifting block of fortune charging tray, and the charging tray shifting block can be under the cylinder effect with material tray propelling movement to next tunnel chamber.
Furthermore, the tunnel cavities are arranged in parallel, and the multistage tunnel cavities form an S-shaped bending structure. The tunnel chamber is preferably provided in three stages, each stage comprising two sets of drying and cooling devices.
Furthermore, magnetic proximity switches are arranged in the microwave drying cavity and the material cooling cavity, and magnetic proximity switches are also arranged at the front end and the rear end of the tunnel cavity.
Further, convulsions exhaust apparatus is including setting up in the inlet fan of cavity antetheca to and set up in the exhaust fan of cavity back wall, every fan outside all installs the metal covering of taking the aperture.
Furthermore, a metal wave baffle is arranged in the gap of the tunnel cavity and is respectively arranged on the upper side and the lower side of the tunnel cavity.
Furthermore, the microwave drying cavity is made of galvanized sheet iron materials, and the top of the cavity is provided with a coupling port.
The utility model has the advantages and effects that:
board hot intermittent type formula microwave dryer, connect gradually by multistage drying system and constitute, every grade of drying system can include the dry cooling device that a plurality of series connection set up, dry cooling device includes microwave drying chamber, material cooling chamber, but every grade of dry cooling device quantity of drying system, drying temperature, transport speed independent control.
The multi-stage drying system can better meet the requirements of time and temperature of different drying sections of the cayenne peppers, the water content of the cayenne peppers at the early stage is high, the temperature is low, and the drying time is long; the middle-stage pepper has more water, the temperature is quickly raised and the pepper is easy to boil, and the drying time is shortened; the late stage pepper has less moisture, slow temperature rise and longer drying time than the medium stage pepper. Through the combined use of all levels, the drying quality of the cayenne pepper can be improved, and the energy consumption is reduced.
The drying and cooling device consists of a microwave drying cavity and a material cooling cavity, and can enable the plate peppers to undergo an intermittent drying process of heating, cooling, reheating and recooling in the tunnel cavity, and the intermittent drying can prevent the plate peppers from being dried for too long continuously, heated to too high temperature and boiled, so that the drying quality of the plate peppers is reduced.
The multistage tunnel cavities are arranged in an S shape, so that the floor area of the device can be reduced; the top of the microwave drying cavity adopts a rotary parabolic structure, so that microwave rays can vertically, uniformly and downwards react with materials fully. The metal shield outside the air draft exhaust device and the metal wave baffle arranged in the gap of the tunnel cavity can effectively avoid microwave leakage and improve the safety performance of the device.
Drawings
FIG. 1 is a main view of a batch type microwave dryer for hot pepper;
FIG. 2 is a top view of a batch microwave dryer for cayenne peppers;
fig. 3 is a schematic structural diagram of the pushing device.
And (3) identifying the figure number: 1. microwave drying chamber, 2, material cooling chamber, 3, microwave generator, 4, temperature sensor, 5, convulsions exhaust apparatus, 51, air inlet fan, 52, exhaust fan, 6, material conveyor, 61, transfer link, 62, fortune charging tray, 63, action wheel, 64, follow driving wheel, 65, feeding motor, 7, pusher, 71, horizontal roller group, 72, cylinder, 73, charging tray shifting block, 8, prick hole running roller, 9, magnetism proximity switch, 10, metal wave baffle, 11, striker brush.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited to these examples.
In this embodiment, an intermittent microwave dryer for plate peppers is shown in fig. 1 and 2, and a main body of the intermittent microwave dryer for plate peppers includes a tunnel cavity, a drying and cooling device, a material conveying device 6, a pushing device 7 and a pricking roller 8. In the embodiment, three sections of tunnel cavities which are arranged in parallel are arranged, the bottom of each section of tunnel cavity is provided with a group of material conveying devices 6, and the tail part of the previous section of tunnel cavity is connected to the head end of the next section of tunnel cavity through a pushing device 7. The three tunnel cavities are connected through the pushing device 7 to form an S-shaped bending structure, the S-shaped structure can reduce the floor area of the whole device, and the layout of a workshop is convenient.
As shown in fig. 1, the material conveying device 6 includes a sprocket conveying mechanism composed of a driving wheel 63, a driven wheel 64, a conveying chain 61 and a feeding motor 65, and a material conveying disc 62 which is placed on the conveying chain 61 and conveyed along with the conveying chain, wherein the feeding motor 65 is connected with a PLC controller through a circuit. The upper chain body of the conveying chain 61 passes through the tunnel cavity, and the material conveying disc 62 placed on the upper chain body can enter the tunnel cavity along with the conveying chain 61 for drying and cooling.
As shown in fig. 1 and 3, the pushing device 7 includes a connecting cavity disposed between two tunnel cavities, and a horizontal roller set 71 is disposed in the connecting cavity. The cylinder 72 is installed on the upper wall of the tail end of the tunnel cavity of the upper section and extends to the upper wall of the connecting cavity, and the pushing direction of the piston is perpendicular to the tunnel cavity and points to the head end of the tunnel cavity of the lower section. The tray shifting block 73 is fixedly connected to the movable end of the cylinder 72, and can push the material conveying tray 62 to the next section of the tunnel cavity along the horizontal roller set 71 when moving along with the piston. The horizontal roller set 71 is installed at a height level with the upper chain body of the transmission chain 61, so that the bumping of the pushing process can be reduced.
As shown in fig. 1 and 2, the drying and cooling devices are disposed on the tunnel cavities, and in the embodiment, two sets of drying and cooling devices are disposed in series on each section of tunnel cavity. The drying and cooling device comprises a microwave drying cavity 1 and a material cooling cavity 2 which are sequentially arranged. Microwave drying chamber 1 is made with galvanized sheet iron material, and its lower part is square chamber, and the top is the rotatory cambered surface chamber that constitutes of parabola, and square chamber does benefit to conveying chain 61 to pass through, and the cambered surface chamber does benefit to the adjustment of microwave ray. The microwave generator 3 is arranged at the focus of the paraboloid, and the microwave output by the microwave generator 3 is input through a coupling port at the top of the cavity. The microwave rays are reflected vertically downwards through the revolution paraboloid and are uniformly distributed, so that the leakage of the microwaves can be effectively reduced, and the utilization rate of the microwaves is improved. In the embodiment, the microwave generator 3 is of a type with microwave working frequency of 2450MHz and microwave output power of 4000W.
As shown in fig. 1, the walls of the microwave drying cavity 1 and the material cooling cavity 2 are provided with an air exhaust device 5, the air exhaust device 5 comprises an air inlet fan 51 arranged on the front wall of the cavity and an air exhaust fan 52 arranged on the rear wall of the cavity, and a metal cover with a small hole is arranged on the outer side of each fan, and the metal cover can prevent microwave leakage. Meanwhile, an observation window can be opened beside the air inlet fan 51 for observing the operation condition of the internal materials.
Temperature sensor 4 is installed to 1 inner wall in microwave drying chamber, and both ends are installed magnetic proximity switch 9 around 1 feed inlet in microwave drying chamber, 2 feed inlets in material cooling chamber, the tunnel chamber, and temperature sensor 4, the output of magnetic proximity switch 9 are connected to the PLC controller. In the embodiment, an OTG-A optical fiber temperature sensor of Opsens, Canada is selected, and the temperature sensor 4 can transmit the temperature in the microwave drying cavity 1 to a PLC controller, so that the microwave generator 3 can be adjusted. The magnetic proximity switch 9 can detect the entering of the material conveying disc 62, so that the PLC controls the starting and stopping of the temperature sensor 4 and the air exhaust device 5.
The head end in first section tunnel chamber sets up pricks hole running roller 8 to be provided with and to carry out the fender material brush 11 that cleans to the gyro wheel, prick hole running roller 8 and can prick the hole to the board pepper in fortune charging tray 62 by motor drive, the motor is connected to the PLC controller. The tunnel intracavity clearance is provided with metal wave baffle 10, and both sides about the tunnel intracavity are installed respectively to metal wave baffle 10, can prevent effectively that the microwave from revealing.
Each section of tunnel cavity in the device, the drying and cooling device and the material conveying device corresponding to the section of tunnel cavity form a primary drying system. According to the characteristics of different drying time periods of the plate peppers, the dryer in the embodiment adopts three-stage drying, and comprises three tunnel cavities, wherein two groups of drying and cooling devices are connected in series on each tunnel cavity, and a three-stage drying system of the whole device is provided with six groups of drying and cooling devices.
In the first stage, the pepper has high moisture content and slow temperature rise, and needs longer drying time; in the second stage, the zanthoxylum piperitum has high water content, is heated quickly, is easy to boil, and needs short drying time. In the second stage, the moisture content of the pepper is low, the temperature rise is slow, and the drying time can be set to be longer. Therefore, the motor speed of each stage of material conveying device can be controlled through the PLC, and the drying time is adjusted.
When the plate pepper intermittent microwave dryer of this embodiment is adopted for drying:
1. firstly, loading the plate peppers into a material conveying disc 62, placing the plate peppers on a conveying chain 61, switching on a power supply, and allowing the conveying chain 61 to bring the material conveying disc 62 to enter from a material inlet of a first section of a tunnel cavity and to pass through a hole pricking roller 8 to finish surface pricking;
2. after entering the first section of the tunnel cavity, the material conveying disc 62 is sensed by the magnetic proximity switch 9, the conveying motor 65 stops conveying, and the microwave generator 3 in the first microwave drying cavity 1 is started to heat for 3 min;
3. after heating, the feeding motor 65 is started again to convey the material conveying disc 62 into the first material cooling cavity 2, and the conveying is stopped and the material is cooled in the cooling cavity for 3 min;
4. the feeding motor 65 is started again to send the material conveying disc 62 into the second microwave drying cavity 1, and the conveying is stopped and the microwave heating is carried out for 3 min;
5. the feeding motor 65 is started again to send the material conveying disc 62 into the second material cooling cavity 2, the conveying is stopped, and the material conveying disc is cooled in the cavity for 2.5 min;
6. and starting the pushing device 7 to push the material conveying disc 62 into the lower-level tunnel cavity, and continuing to dry according to the procedures until the material conveying disc 62 comes out from the material discharging port of the last-level drying system, so that the drying is finished.
The results obtained after the analysis of the small batch test of the prototype are as follows: after the plate peppers are processed by the microwave power of 4000W, the microwave heating mode of 180s/180s intermittent heating and the total drying time of 24min, the drying quality of the plate peppers is good, the yield reaches more than 98%, and a better using effect can be achieved.
The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and alterations to these embodiments may be made without departing from the principles and spirit of the invention, which is within the scope of the invention.
Claims (10)
1. The utility model provides a board pepper intermittent type formula microwave dryer which characterized in that: the device comprises at least two sections of tunnel cavities which are connected in sequence, wherein each section of tunnel cavity is at least provided with a group of drying and cooling devices in an arrangement manner; the drying and cooling device comprises a microwave drying cavity (1) and a material cooling cavity (2) which are sequentially arranged, wherein a microwave generator (3) and a temperature sensor (4) are arranged on the inner wall of the microwave drying cavity (1); the cavity walls of the microwave drying cavity (1) and the material cooling cavity (2) are provided with air exhaust devices (5);
the bottom of the tunnel cavity is provided with a material conveying device (6), a conveying chain (61) of the material conveying device penetrates through the tunnel cavity, and a material conveying disc (62) is placed on the conveying chain (61) and is conveyed forwards along with the conveying chain (61);
and a pushing device (7) which can push the material conveying disc (62) at the tail end of the previous tunnel cavity to the head end of the next tunnel cavity is arranged between the two sections of tunnel cavities which are connected in sequence.
2. The batch-type microwave dryer for plate peppers according to claim 1, characterized in that: the microwave drying cavity (1) has a certain height, the top of the microwave drying cavity is of a rotating parabolic structure, and the microwave generator (3) is installed at the focus of the paraboloid.
3. The batch-type microwave dryer for plate peppers according to claim 1, characterized in that: the hole pricking roller (8) is arranged at the head end of the first section of the tunnel cavity, and the hole pricking roller (8) is driven by a motor to prick the plate peppers in the material conveying disc (62).
4. The batch-type microwave dryer for plate peppers according to claim 1, characterized in that: pusher (7) including locating the connection chamber between two tunnel chambeies, connect the intracavity and set up horizontal roller set (71), last one section tunnel chamber tail end roof sets up cylinder (72) and extends to connecting the chamber, and cylinder (72) expansion end rigid coupling is used for promoting charging tray shifting block (73) of fortune charging tray (62).
5. The batch-type microwave dryer for plate peppers according to claim 1, characterized in that: the tunnel cavities are arranged in parallel, and the multistage tunnel cavities form an S-shaped bending structure.
6. The batch-type microwave dryer for plate peppers according to claim 5, characterized in that: the tunnel cavity is provided with three sections, and each section comprises two groups of drying and cooling devices.
7. The batch-type microwave dryer for plate peppers according to claim 1, characterized in that: install magnetism proximity switch (9) in microwave drying chamber (1), material cooling chamber (2), both ends are also installed magnetism proximity switch (9) around the tunnel chamber.
8. The intermittent microwave dryer for plate peppers according to any one of claims 1 to 7, characterized in that: the air exhaust device (5) comprises an air inlet fan (51) arranged on the front wall of the cavity and an exhaust fan (52) arranged on the rear wall of the cavity, and a metal cover with small holes is mounted on the outer side of each fan.
9. The intermittent microwave dryer for plate peppers according to any one of claims 1 to 7, characterized in that: the tunnel cavity clearance sets up metal wave baffle (10), and metal wave baffle (10) are installed in both sides about the tunnel cavity respectively.
10. The intermittent microwave dryer for plate peppers according to any one of claims 1 to 7, characterized in that: the microwave drying cavity (1) is made of galvanized white iron sheet materials, and the top of the cavity is provided with a coupling port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022764210.1U CN213578384U (en) | 2020-11-25 | 2020-11-25 | Intermittent type formula microwave dryer of board prickly ash |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022764210.1U CN213578384U (en) | 2020-11-25 | 2020-11-25 | Intermittent type formula microwave dryer of board prickly ash |
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| CN213578384U true CN213578384U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022764210.1U Expired - Fee Related CN213578384U (en) | 2020-11-25 | 2020-11-25 | Intermittent type formula microwave dryer of board prickly ash |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023023729A1 (en) * | 2021-08-24 | 2023-03-02 | Agridry Dryers Pty Ltd | System and method/process for drying products |
-
2020
- 2020-11-25 CN CN202022764210.1U patent/CN213578384U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023023729A1 (en) * | 2021-08-24 | 2023-03-02 | Agridry Dryers Pty Ltd | System and method/process for drying products |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 Termination date: 20211125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |