CN113419583A - Nut redrying machine and method - Google Patents
Nut redrying machine and method Download PDFInfo
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- CN113419583A CN113419583A CN202110668158.6A CN202110668158A CN113419583A CN 113419583 A CN113419583 A CN 113419583A CN 202110668158 A CN202110668158 A CN 202110668158A CN 113419583 A CN113419583 A CN 113419583A
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- temperature
- humidity
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- redrying
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 235000014571 nuts Nutrition 0.000 abstract description 46
- 239000003205 fragrance Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 244000144725 Amygdalus communis Species 0.000 abstract description 3
- 235000011437 Amygdalus communis Nutrition 0.000 abstract description 3
- 235000003447 Pistacia vera Nutrition 0.000 abstract description 3
- 240000006711 Pistacia vera Species 0.000 abstract description 3
- 235000020224 almond Nutrition 0.000 abstract description 3
- 235000020233 pistachio Nutrition 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a nut redrying machine and a method, comprising a drying oven body, a mesh belt conveyor, a temperature sensor and a humidity sensor; dividing the inner cavity of the oven body into a plurality of temperature sections, arranging an independent heating device in each temperature section, respectively setting the temperature and the humidity of the eight temperature sections, and independently heating each temperature section through the heating device to ensure that the temperature in the oven body is reduced in a gradient manner; conveying the dried nuts by a mesh belt conveyor, redrying the dried nuts through different temperature zones, respectively acquiring real-time temperature information and humidity information by a temperature sensor and a humidity sensor in each temperature zone, controlling and adjusting the output power of each heating device by a temperature controller through the real-time temperature information to avoid overhigh or overlow temperature, and respectively controlling each opening device by a comparator according to the real-time humidity information to control the discharge of water; so as to realize the high-temperature redrying and fragrance improvement of various dried nuts such as pistachio nuts, almond kernels and the like.
Description
Technical Field
The invention relates to the technical field of nut roasting, in particular to a nut redrying machine and a nut redrying method.
Background
After the nuts are dried and cooled, the taste becomes crisp, but a great amount of moisture can be emitted by the nuts in the natural cooling process, if the moisture cannot be emitted in time, the moisture can be absorbed by the nuts again, so that the nuts become soft and lose part of the taste; therefore, the nuts need to be redried, and the moisture loss is accelerated by redrying so as to keep the mouthfeel.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the nut redrying machine provided by the invention can realize the controllability of the nut redrying temperature and avoid nut scorching caused by redrying.
The invention also provides a nut redrying method.
According to a first aspect of the invention, the nut redrying machine comprises a drying oven body, a mesh belt conveyor, a temperature sensor and a humidity sensor; dividing the inner cavity of the drying oven body into a plurality of temperature sections, wherein an independent heating device is arranged in each temperature section, a moisture exhaust air pipe is arranged at the top of each temperature section, and an opening device is arranged in each moisture exhaust air pipe; the mesh belt conveyor is arranged in the drying oven body and passes through each warm section; the temperature sensors are arranged in the temperature zones respectively, the temperature sensors feed temperature information back to the temperature controller, and the temperature controller controls the output power of the heating device; the humidity sensors are arranged in the temperature zones respectively, the humidity sensors feed humidity information back to the ratio adjusting instrument, and the ratio adjusting instrument controls the opening device.
According to some embodiments of the present invention, the heating device includes a main heating member and a circulating heating device, and the main heating member is respectively installed above and below the mesh belt conveyor.
According to some embodiments of the invention, the circulation heating device comprises a wind wheel and a wind wheel motor, the wind wheel is located at the bottom of the warm section, and the wind wheel is connected with the wind wheel motor.
According to some embodiments of the present invention, the main heating member employs a far infrared ceramic electric heating plate.
According to some embodiments of the invention, the opening device comprises a sealing plate rotatably mounted in the moisture exhaust duct, and a rotating motor is connected to the center of the sealing plate.
According to a second aspect of the present invention, a nut redrying method is provided, which uses the above nut redrying machine, wherein eight warm sections are used, and the method comprises the following steps:
a. presetting temperature and humidity: respectively setting the temperature and the humidity of the eight temperature sections to enable the temperature of the eight temperature sections to be reduced in a gradient manner;
b. conveying: the mesh belt conveyor conveys the dried nuts, and the dried nuts are redried through the eight warm sections;
c. temperature monitoring: the temperature sensors in each temperature zone respectively acquire real-time temperature information and feed the real-time temperature information back to the temperature controller, and the temperature controller calculates the temperature difference between the real-time temperature and the set temperature and respectively controls and adjusts the output power of each heating device;
d. and (3) humidity monitoring: and the humidity sensor in each temperature zone respectively collects real-time humidity information and feeds the real-time humidity information back to the comparison and adjustment instrument, and the comparison and adjustment instrument calculates the quantity difference between the real-time humidity and the set humidity to respectively control each opening device.
According to some embodiments of the invention, the temperature sensor is used at a frequency of 30 times/second.
According to some embodiments of the invention, the humidity sensor is used at a frequency of 15 times/second.
The invention has at least the following beneficial effects:
dividing the inner cavity of the oven body into a plurality of temperature sections, arranging an independent heating device in each temperature section, respectively setting the temperature and the humidity of the eight temperature sections, and independently heating each temperature section through the heating device to ensure that the temperature in the oven body is reduced in a gradient manner; conveying the dried nuts by a mesh belt conveyor, redrying the dried nuts through different temperature zones, respectively acquiring real-time temperature information and humidity information by a temperature sensor and a humidity sensor in each temperature zone, controlling and adjusting the output power of each heating device by a temperature controller through the real-time temperature information to avoid overhigh or overlow temperature, and respectively controlling each opening device by a comparator according to the real-time humidity information to control the discharge of water; so as to realize the high-temperature redrying and fragrance improvement of various dried nuts such as pistachio nuts, almond kernels and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic top view of an embodiment of the present invention;
FIG. 2 is a schematic side view of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1 and 2, the nut redrying machine comprises a drying oven body 100, a mesh belt conveyor 300, a temperature sensor 400 and a humidity sensor 500; the inner cavity of the oven body 100 is divided into a plurality of temperature sections 110, an independent heating device 200 is arranged in each temperature section 110, the temperature and the humidity of the eight temperature sections 110 are respectively set, and each temperature section 110 is independently heated through the heating device 200, so that the temperature in the oven body 100 is reduced in a gradient manner; the mesh belt conveyor 300 conveys the dried nuts, so that the dried nuts are redried through different temperature sections 110, a temperature sensor 400 and a humidity sensor 500 in each temperature section 110 respectively collect real-time temperature information and humidity information, the temperature controller 410 controls and adjusts the output power of each heating device 200 through the real-time temperature information to avoid overhigh or overlow temperature, and the comparator 510 respectively controls each opening device 121 according to the real-time humidity information to control the emission of water; so as to realize the high-temperature redrying and fragrance improvement of various dried nuts such as pistachio nuts, almond kernels and the like.
The heating device 200 comprises a main heating element 210 and a circulating heating device 220, nuts are uniformly heated by a double heating mode, the temperature setting and the temperature information acquisition of the temperature section 110 are more accurate, and the moisture discharge control can be realized.
The main heating members 210 are respectively installed above and below the mesh belt conveyor 300, and heat both the upper and lower surfaces of the nuts, thereby preventing the nuts from being burnt due to temperature concentration on one surface.
The circulation heating device 220 comprises a wind wheel 221 and a wind wheel motor 222, the wind wheel 221 is located at the bottom of the temperature section 110, and the wind wheel 221 is connected with the wind wheel motor 222 to perform hot air circulation convection heating in the temperature section 110, so that the drying temperature is further improved to be uniform.
The main heating member 210 adopts a far infrared ceramic electric heating plate, and nuts absorb far infrared rays in a large amount to increase the internal temperature, so that the moisture content of the nuts is further reduced.
The opening device 121 comprises a sealing plate 1211, the sealing plate 1211 is rotatably arranged in the moisture exhaust air pipe 120, a rotating motor 1212 is connected to the center of the sealing plate 1211, the rotating motor 1212 rotates the sealing plate 1211 to enable the sealing plate 1211 to rotate from a horizontal state to an inclined state, and a gap is formed between the sealing plate 1211 and the inner wall of the moisture exhaust air pipe 120 to enable moisture to be exhausted; the moisture discharge amount is adjusted by controlling the inclination of the sealing plate 1211.
A nut redrying method adopts the nut redrying machine, eight temperature sections 110 are adopted, and the method comprises the following steps:
a. presetting temperature and humidity: the temperature and the humidity of the eight temperature sections 110 are respectively set, so that the temperature of the eight temperature sections 110 is reduced in a gradient manner;
b. conveying: the mesh belt conveyor 300 conveys the dried nuts, and the dried nuts are redried through the eight warm sections 110;
c. temperature monitoring: the temperature sensor 400 in each temperature zone 110 respectively collects real-time temperature information and feeds the real-time temperature information back to the temperature controller 410, the temperature controller 410 calculates the temperature difference between the real-time temperature and the set temperature, respectively controls and adjusts the output power of each heating device 200, and controls each opening device 121;
d. and (3) humidity monitoring: the humidity sensor 500 in each temperature zone 110 collects real-time humidity information and feeds the real-time humidity information back to the comparator 510, and the comparator 510 calculates the difference between the real-time humidity and the set humidity to control each opening device 121.
Through step a, the nut redrying temperature curve is matched with the dehydration amount curve of the nuts, so that the redrying temperature is gradually reduced while the water content of the nuts is gradually reduced, the nuts are prevented from being burnt due to high temperature, and the nut redrying device has the advantages of being good in fragrance improving effect and good in taste crispness.
The temperature sensor 400 is used at a frequency of 30 times/second, and automatically opens the moisture exhaust port to reduce the temperature and reduce the output power of the heating apparatus 200 when the temperature exceeds a predetermined temperature.
The humidity sensor 500 is used at a frequency of 15 times/second, and when the humidity exceeds a set target value, the moisture exhaust port is automatically opened to improve the moisture exhaust.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A nut redrying machine, comprising:
the drying oven comprises an oven body (100), wherein an inner cavity of the oven body (100) is divided into a plurality of temperature sections (110), an independent heating device (200) is arranged in each temperature section (110), a moisture exhaust air pipe (120) is arranged at the top of each temperature section (110), an opening device (121) is arranged in each moisture exhaust air pipe (120), and each opening device (121) is used for opening or closing the moisture exhaust air pipe (120);
a mesh belt conveyor (300), wherein the mesh belt conveyor (300) is arranged in the drying oven body (100) and passes through each warm section (110);
the temperature sensors (400) are multiple and are respectively arranged in the temperature section (110), the temperature sensors (400) feed temperature information back to the temperature controller (410), and the temperature controller (410) controls the output power of the heating device (200);
the humidity sensors (500) are multiple and are respectively arranged in the temperature section (110), the humidity sensors (500) feed humidity information back to the ratio adjusting instrument (510), and the ratio adjusting instrument (510) controls the opening device (121).
2. The nut redrying machine of claim 1, wherein said heating device (200) comprises a main heating element (210) and a circulating heating device (220), said main heating element (210) being respectively disposed above and below said mesh belt conveyor (300).
3. Nut redryer according to claim 2 characterized in that, the circulation heating device (220) comprises a wind wheel (221), a wind wheel motor (222), the wind wheel (221) is located at the bottom of the warm section (110), the wind wheel (221) is connected with the wind wheel motor (222).
4. The nut redrying machine of claim 2 wherein said main heating element (210) is a far infrared ceramic electric heating plate.
5. The nut redrying machine of claim 1, wherein said opening mechanism (121) comprises a sealing plate (1211), said sealing plate (1211) is rotatably mounted inside said moisture exhausting duct (120), and a rotating motor (1212) is connected to the center of said sealing plate (1211).
6. A nut redrying method, characterized in that, using a nut redryer according to any one of claims 1 to 5, wherein eight of said warm sections (110) are used, comprising the following steps:
a. presetting temperature and humidity: the temperature and the humidity of the eight temperature sections (110) are respectively set, so that the temperature of the eight temperature sections (110) is reduced in a gradient manner;
b. conveying: the mesh belt conveyor (300) conveys the dried nuts, so that the dried nuts sequentially enter the eight warm sections (110) for redrying;
c. temperature monitoring: the temperature sensor (400) in each temperature section (110) respectively collects real-time temperature information and feeds the real-time temperature information back to the temperature controller (410), and the temperature controller (410) calculates the temperature difference between the real-time temperature and the set temperature and respectively controls and adjusts the output power of each heating device (200);
d. and (3) humidity monitoring: the humidity sensors (500) in each temperature section (110) respectively collect real-time humidity information and feed the real-time humidity information back to the comparison and adjustment instrument (510), and the comparison and adjustment instrument (510) calculates the quantity difference between the real-time humidity and the set humidity so as to respectively control the opening devices (121).
7. The nut redrying method of claim 6, wherein the temperature sensor (400) is used at a frequency of 30 times per second.
8. The nut redrying method of claim 6, wherein the humidity sensor (500) is used at a frequency of 15 times per second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110668158.6A CN113419583A (en) | 2021-06-16 | 2021-06-16 | Nut redrying machine and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110668158.6A CN113419583A (en) | 2021-06-16 | 2021-06-16 | Nut redrying machine and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113419583A true CN113419583A (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110668158.6A Pending CN113419583A (en) | 2021-06-16 | 2021-06-16 | Nut redrying machine and method |
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| Country | Link |
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| CN (1) | CN113419583A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748927A (en) * | 2012-07-30 | 2012-10-24 | 浙江大学 | Tunnel type traditional Chinese medicine microwave drying device and no-load automatically-resistant method for moisture removing system |
| CN106546091A (en) * | 2015-12-24 | 2017-03-29 | 广东展翠食品股份有限公司 | A kind of bergamot fruit drying equipment and its drying meanss |
| CN206362147U (en) * | 2017-01-05 | 2017-07-28 | 湖南工程学院 | A kind of automaton of the multistage dryer of paddy |
| US10184722B1 (en) * | 2016-03-23 | 2019-01-22 | Kinestral Technologies, Inc. | Multi-zone heating oven with a plurality of heating zones having individually controlled temperature humidity |
| CN110051029A (en) * | 2019-05-21 | 2019-07-26 | 红云红河烟草(集团)有限责任公司 | Low-temperature slow-curing redrying method for improving quality and keeping fragrance of tobacco flakes |
| WO2020254028A1 (en) * | 2019-06-19 | 2020-12-24 | Lars Engel | System and method for drying hemp |
-
2021
- 2021-06-16 CN CN202110668158.6A patent/CN113419583A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748927A (en) * | 2012-07-30 | 2012-10-24 | 浙江大学 | Tunnel type traditional Chinese medicine microwave drying device and no-load automatically-resistant method for moisture removing system |
| CN106546091A (en) * | 2015-12-24 | 2017-03-29 | 广东展翠食品股份有限公司 | A kind of bergamot fruit drying equipment and its drying meanss |
| US10184722B1 (en) * | 2016-03-23 | 2019-01-22 | Kinestral Technologies, Inc. | Multi-zone heating oven with a plurality of heating zones having individually controlled temperature humidity |
| CN206362147U (en) * | 2017-01-05 | 2017-07-28 | 湖南工程学院 | A kind of automaton of the multistage dryer of paddy |
| CN110051029A (en) * | 2019-05-21 | 2019-07-26 | 红云红河烟草(集团)有限责任公司 | Low-temperature slow-curing redrying method for improving quality and keeping fragrance of tobacco flakes |
| WO2020254028A1 (en) * | 2019-06-19 | 2020-12-24 | Lars Engel | System and method for drying hemp |
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Application publication date: 20210921 |