CN115654860A - Thin-layer drying machine for online detection of water content of material - Google Patents
Thin-layer drying machine for online detection of water content of material Download PDFInfo
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- CN115654860A CN115654860A CN202211587384.2A CN202211587384A CN115654860A CN 115654860 A CN115654860 A CN 115654860A CN 202211587384 A CN202211587384 A CN 202211587384A CN 115654860 A CN115654860 A CN 115654860A
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- 239000000463 material Substances 0.000 title claims abstract description 57
- 238000001035 drying Methods 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000005303 weighing Methods 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000004677 Nylon Substances 0.000 claims abstract description 14
- 229920001778 nylon Polymers 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 238000010981 drying operation Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000007602 hot air drying Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000012800 visualization Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009777 vacuum freeze-drying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a thin-layer dryer for on-line detection of water content of materials, which mainly comprises a weighing mechanism, an upper air chamber, an aluminum profile frame, a hot air circulating mechanism, a lower air chamber, a heating pipe, a human-computer interface, a dehumidifying fan, a temperature and humidity sensor and a wind speed sensor, wherein the weighing mechanism is arranged on the upper air chamber; the weighing mechanism mainly comprises a weighing sensor, a bearing frame, a nylon rope, a truss, a screw, a material tray, a base, a mounting seat, a weighing sensor mounting gasket and an aluminum profile; the hot air circulation mechanism mainly comprises a return air fan, an upper supporting plate, a return air liner, a lower supporting plate, an air inlet fan, an air inlet liner and a uniform air cylinder; the invention realizes the automatic detection of the material quality in the hot air drying process, displays the corresponding water content by the human-computer interface, and has the functions of visualization of drying parameters, cyclic utilization of hot air energy and automatic moisture removal in the drying process; the drying energy consumption is reduced while the quality and the water content are accurately measured.
Description
Technical Field
The invention relates to a drying machine, in particular to a dryer for online detection of water content of a material, which is particularly suitable for drying a thin-layer material.
Background
China is a big country for planting and processing agricultural products, and the agricultural products have the characteristics of large yield, high water content, strong seasonality, intolerance to storage and the like after being harvested. Drying is an important means for storing agricultural products, is also an important agricultural product processing technology, and can effectively prevent the agricultural products from rotting and deteriorating.
When the drying characteristics of different types of agricultural products are studied, they are usually dried in thin layers. The drying method mainly comprises the following steps: infrared radiation drying, vacuum freeze drying, gas jet impact drying, solar drying, thin-layer hot air drying and the like. The thin-layer hot air drying is still a mainstream drying technology at present due to the advantages of strong applicability, low drying cost, convenient operation and the like.
The quality of the thin-layer material in the hot air drying process can change in real time, the quality change corresponds to the change of the moisture content, and the moisture content determines the drying quality of the thin-layer material. Therefore, in the process of drying the thin-layer material, in order to ensure the drying quality, a drying person needs to regularly detect the change of the water content of the material according to a set time interval.
The moisture content mode of the dry material of traditional manual detection is: in the drying process, a drying person regularly takes out the materials being dried from the dryer according to a specified time interval, the materials are placed back to the dryer to be continuously dried after the moisture content of the materials is detected, and the drying operation is carried out for a plurality of times until the moisture content of the materials is reduced to a target value, and then the drying operation is stopped; in whole drying process, need have the operation of someone on duty always, waste time and energy, and at the in-process that detects material moisture content, drying person need make a round trip to get and put the material, and this makes the dry environment that the material is located unstable, and then damages final drying quality.
Therefore, the invention provides the thin-layer dryer for the online detection of the moisture content of the material, which can realize the automatic detection of the moisture content of the thin-layer material in the drying process and automatically stop drying when the target moisture content is reached; in addition, the invention also has the functions of visualization of drying parameters, cyclic utilization of hot air energy and automatic dehumidification in the drying process; the whole drying process does not need to be attended by a special person, the drying environment of the materials is not changed, the manpower is liberated, the drying energy consumption is reduced, and the final drying quality of the materials is ensured.
Disclosure of Invention
The invention aims to provide a thin-layer dryer for online detection of water content of materials, which realizes online detection of the water content in the process of drying the thin-layer materials.
In order to achieve the purpose, the invention provides a thin-layer dryer for on-line detection of water content of materials, which is characterized by mainly comprising a weighing mechanism, an upper air chamber, an aluminum profile frame, a hot air circulating mechanism, a lower air chamber, a heating pipe, a human-computer interface, a moisture exhaust fan, a temperature and humidity sensor and a wind speed sensor.
Furthermore, the weighing mechanism mainly comprises a weighing sensor, a bearing frame, a nylon rope, a truss, a screw, a material tray, a base, a mounting seat, a weighing sensor mounting gasket and an aluminum profile.
Furthermore, the hot air circulation mechanism mainly comprises a return air fan, an upper supporting plate, a return air liner, a lower supporting plate, an air inlet fan, an air inlet liner and an air homogenizing cylinder.
Furthermore, the heating pipe heats the air in the lower air chamber, the hot air is pumped into the air inlet liner by the air inlet fan, and the hot air is homogenized by the air homogenizing cylinder and then penetrates through the dry material; the wet and hot air after the materials are dried flows into the upper air chamber, the return air fan blows air downwards, the wet and hot air flows into the lower air chamber through the return air liner and is heated again by the heating pipe, and the recycling of hot air energy is realized.
Furthermore, the bearing frame, the nylon rope, the truss, the screw, the material tray and the base are integrally suspended on the stress side of the weighing sensor; the nylon rope has low heat conductivity coefficient, and the screw can level the material tray; the mounting seat is fixed on the top plate of the upper air chamber through bolts, and the nylon rope penetrates through a hole in the top plate of the upper air chamber.
Furthermore, the temperature and humidity sensor detects the temperature and humidity of the hot and humid air in the upper air chamber, the wind speed sensor detects the wind speed of the hot and humid air in the upper air chamber, and the human-computer interface displays the temperature and humidity value and the wind speed value in real time; in addition, the human-computer interface can set a temperature and humidity target value and an air speed target value respectively, and the drying environment in the dryer is stable.
Further, during drying operation, the human-computer interface displays the water content of the material in real time and can set a target value of the water content of the material; when the measured value is larger than the target value, the whole machine is continuously dried, when the measured value is smaller than the target value, the whole machine is automatically powered off to stop drying, and the human-computer interface records the total drying time.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a three-dimensional structure of a thin-layer dryer for on-line detection of moisture content of a material according to the present invention;
FIG. 2 is a schematic perspective view of the weighing mechanism of the present invention;
FIG. 3 is a schematic perspective view of the hot air circulation mechanism according to the present invention;
FIG. 4 is a flow chart of the system operation of the present invention;
in fig. 1: 1. a weighing mechanism; 2. an upper air chamber; 3. an aluminum profile frame; 4. a hot air circulating mechanism; 5. a lower air chamber; 6. heating a tube; 7. a human-machine interface; 8. a moisture exhausting fan; 9. a temperature and humidity sensor; 10. and a wind speed sensor.
In fig. 2: 101. a weighing sensor; 102. a bearing frame; 103. a nylon cord; 104. a truss; 105. a screw; 106. a material tray; 107. a base; 108. a mounting seat; 109. a weighing sensor mounting pad; 110. an aluminum profile.
In fig. 3: 401. an air return fan; 402. an upper support plate; 403. a return air liner; 404. a lower support plate; 405. an air intake fan; 406. an air inlet air container; 407. and a wind homogenizing barrel.
Detailed Description
The invention will now be further elucidated with reference to the drawing.
Referring to fig. 1-3, a thin layer dryer for on-line detection of moisture content of a material is characterized by mainly comprising a weighing mechanism 1, an upper air chamber 2, an aluminum profile frame 3, a hot air circulation mechanism 4, a lower air chamber 5, a heating pipe 6, a human-computer interface 7, a dehumidifying fan 8, a temperature and humidity sensor 9 and an air speed sensor 10 (as shown in fig. 1).
The weighing mechanism 1 mainly comprises a weighing sensor 101, a bearing frame 102, a nylon rope 103, a truss 104, a screw 105, a material tray 106, a base 107, a mounting seat 108, a weighing sensor mounting gasket 109 and an aluminum profile 110 (as shown in figure 2).
The drying box 3 mainly includes a moisture exhaust port 301, a drying chamber 302, a door 303, an air distribution port 304, a box body 305, an air inlet 306, and a support frame 307 (as shown in fig. 3).
The heating pipe 6 is electrified to work and then heats the air in the lower air chamber 5, the air inlet fan 305 pumps the heated air into the air inlet air liner 306, the air is homogenized by the air homogenizing cylinder 307 and then penetrates through the dry materials, the hot air absorbs the moisture of the dry materials and becomes humid hot air to flow into the upper air chamber 2, the return air fan 301 draws air downwards, the hot air flows into the lower air chamber 5 through the return air liner 303 and is heated again, and the recycling of hot air energy is realized.
The temperature and humidity sensor 9 detects the temperature and humidity of the hot and humid air in the upper air chamber 2, the wind speed sensor 10 detects the wind speed of the hot and humid air in the upper air chamber 2, and the human-computer interface 7 displays the temperature, humidity and wind speed values in real time; in addition, the human-computer interface 7 can set a temperature and humidity target value and a wind speed target value respectively, the temperature and humidity of the drying environment are in a target range by controlling the start and stop of the heating pipe 6 and the dehumidifying fan 8, and the wind speed of the drying environment is in the target range by controlling the rotating speeds of the return air fan 301 and the intake air fan 305, so that the drying environment in the dryer is stable.
The bearing frame 102, the nylon rope 103, the truss 104, the screw 105, the material tray 106 and the base 107 are integrally suspended on the stress side of the weighing sensor 101, and the weighing sensor 101 detects the mass change of the dried material in real time during actual drying operation; the nylon ropes 103 have lower heat conductivity coefficients, so that when the precipitation of condensed water in the drying process is effectively prevented from dripping into the drying material, the weighing sensor 101 is guaranteed not to have large-range temperature fluctuation, the screw 105 can level the material tray 106, the mounting seat 108 is fixed on the top plate of the upper air chamber 2 through bolts, the nylon ropes 103 penetrate through holes in the top plate of the upper air chamber 2, and the base 107 is arranged above an air outlet of the air homogenizing cylinder 307.
In the drying process, the human-computer interface 7 displays the water content of the material in real time and can set a target value of the water content of the material; when the measured value is larger than the target value, the whole machine continues to supply power, when the measured value is smaller than the target value, the whole machine is automatically powered off to stop drying, and the human-computer interface 7 records the total drying time.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A thin-layer dryer for online detection of water content of materials is characterized by mainly comprising a weighing mechanism (1), an upper air chamber (2), an aluminum profile frame (3), a hot air circulating mechanism (4), a lower air chamber (5), a heating pipe (6), a human-computer interface (7), a dehumidifying fan (8), a temperature and humidity sensor (9) and an air speed sensor (10); the weighing mechanism (1) mainly comprises a weighing sensor (101), a bearing frame (102), a nylon rope (103), a truss (104), a screw (105), a material tray (106), a base (107), a mounting seat (108), a weighing sensor mounting gasket (109) and an aluminum profile (110); the hot air circulation mechanism (4) mainly comprises a return air fan (401), an upper supporting plate (402), a return air liner (403), a lower supporting plate (404), an air inlet fan (405), an air inlet liner (406) and an air homogenizing cylinder (407).
2. The thin layer dryer for online detection of water content of materials according to claim 1, wherein the heating pipe (6) heats air in the lower air chamber (5), the air inlet fan (405) pumps hot air into the air inlet air container (406), and the hot air penetrates through the dried materials after being homogenized by the air homogenizing cylinder (407); the wet and hot air after the materials are dried flows into the upper air chamber (2), the return air fan (401) blows downwards, the wet and hot air flows into the lower air chamber (5) through the return air liner (403), and the wet and hot air is heated again by the heating pipe (6), so that the recycling of hot air energy is realized.
3. The thin-layer dryer for on-line detection of moisture content of materials according to claim 1, wherein the temperature and humidity sensor (9) detects temperature and humidity of hot and humid air in the upper air chamber (2), the air speed sensor (10) detects air speed of the hot and humid air in the upper air chamber (2), the man-machine interface (7) displays the temperature and humidity value and the air speed value in real time, and can set a temperature and humidity target value and an air speed target value respectively to control the drying environment in the dryer to be stable.
4. The thin layer dryer for the online detection of the moisture content of materials according to claim 1, wherein the bearing frame (102), the nylon rope (103), the truss (104), the screw (105), the material tray (106) and the base (107) are integrally suspended on a force-bearing side of the weighing sensor (101); the nylon rope (103) has low heat conductivity coefficient, and the screw (105) can level the material tray (106); the mounting seat (108) is fixed on the top plate of the upper air chamber (2) through bolts, and the nylon rope (103) penetrates through a hole in the top plate of the upper air chamber (2).
5. The thin-layer dryer for the online detection of the moisture content of the material according to claim 1, wherein during the drying operation, the human-computer interface (7) displays the moisture content of the material in real time and can set a target value of the moisture content of the material; when the measured value is larger than the target value, the whole machine is continuously dried; when the measured value is smaller than the target value, the whole machine is automatically powered off to stop drying; the human-machine interface (7) records the total drying time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211587384.2A CN115654860A (en) | 2022-12-12 | 2022-12-12 | Thin-layer drying machine for online detection of water content of material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211587384.2A CN115654860A (en) | 2022-12-12 | 2022-12-12 | Thin-layer drying machine for online detection of water content of material |
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| CN115654860A true CN115654860A (en) | 2023-01-31 |
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| CN202211587384.2A Pending CN115654860A (en) | 2022-12-12 | 2022-12-12 | Thin-layer drying machine for online detection of water content of material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103994652A (en) * | 2014-06-03 | 2014-08-20 | 黑龙江省农副产品加工机械化研究所 | Thin-layer drying experimental equipment and drying technology thereof |
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| CN114608278A (en) * | 2022-04-12 | 2022-06-10 | 西南大学 | Automatic green prickly ash drying-machine and quality correction model of weighing |
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2022
- 2022-12-12 CN CN202211587384.2A patent/CN115654860A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2844697A1 (en) * | 2013-03-09 | 2014-09-09 | Ctb, Inc. | Method and system to selectively dry grain in a grain bin |
| WO2015085634A1 (en) * | 2013-12-13 | 2015-06-18 | 长春吉大科学仪器设备有限公司 | Total-weight detection-based method and system thereof for on-line measuring and controlling moisture in circulation drying of grain |
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