CN112857010B - A three-stage belt infrared dryer equipped with a cooling and sterilization device - Google Patents
A three-stage belt infrared dryer equipped with a cooling and sterilization device Download PDFInfo
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- CN112857010B CN112857010B CN202110277347.0A CN202110277347A CN112857010B CN 112857010 B CN112857010 B CN 112857010B CN 202110277347 A CN202110277347 A CN 202110277347A CN 112857010 B CN112857010 B CN 112857010B
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- 238000001816 cooling Methods 0.000 title claims abstract description 38
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 29
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 26
- 238000001035 drying Methods 0.000 claims abstract description 120
- 239000000463 material Substances 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000007602 hot air drying Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007603 infrared drying Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229940126680 traditional chinese medicines Drugs 0.000 description 1
- 235000013311 vegetables Nutrition 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
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
- A23B2/00—Preservation of foods or foodstuffs, in general
- A23B2/50—Preservation of foods or foodstuffs, in general by irradiation without heating
- A23B2/53—Preservation of foods or foodstuffs, in general by irradiation without heating with ultraviolet light
-
- 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
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
-
- 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
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Combustion & Propulsion (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the field of food processing, in particular to a three-stage belt type infrared dryer with a cooling sterilization device. The automatic material drying device mainly comprises a drying chamber, a heating system, a conveying system, a ventilation system, a cooling sterilization system and a control system, and is characterized in that three-stage drying is intensified drying, intermittent drying and cooling sterilization respectively, different drying processes are combined, so that the drying effect and quality of materials are improved, the angle of a guide chute in the conveying system is adjustable, the materials are prevented from accumulating, the drying time and the drying rate of the materials are controlled by matching with a conveying belt, the ventilation system can quickly discharge water vapor out of a box body, the absorption of the materials to infrared radiation energy is prevented from being influenced by evaporation water vapor, and the cooling sterilization system can quickly cool and sterilize the dried materials so as to directly seal bags for packaging. The dryer provided by the invention has the advantages of good drying effect, reduced labor intensity of workers, shortened production period, energy conservation, environmental protection, less heat pollution and capability of meeting the drying requirements of different materials.
Description
Technical Field
The invention relates to the technical field of food processing, in particular to a three-stage belt type infrared dryer with a cooling sterilization device.
Background
The agricultural products are mainly agricultural products such as vegetables, melons, fruits, grains, oil crops and the like, and agricultural by-products such as tea, tobacco, traditional Chinese medicines and the like which need to be dried, so that the agricultural product processing technology in China still has huge value-added space and development potential at present. However, there is still a great gap between China and developed countries in terms of development of agricultural product drying technology.
The infrared drying technology is widely researched and applied as an agricultural product drying technology, the temperature is quickly raised, the preheating time required by drying facilities is effectively shortened, the structure of the used drying equipment is simpler than that of other drying methods, the drying efficiency is high, the investment and the occupied area of the equipment can be effectively saved, and the infrared radiation has the advantages of directivity, capability of heating local parts and the like. The belt drying device has the advantages of high drying speed, high evaporation intensity, good product quality and the like, which cannot be achieved by the traditional drying technology.
Chinese patent No. CN1042116513a discloses an infrared dryer, which is composed of a support, a conveying table, a drying chamber, a motor frame and a control panel, wherein the conveying table is located on the upper portion of the support, the motor frame is located on one side of the support, the motor is connected with the conveying table, the drying chamber is arranged on the motor frame, the control panel is located on the uppermost portion of the drying chamber, a distribution box is arranged on the support, and infrared heating pipes are installed on two sides of the top of the drying chamber. The infrared drying and hot air drying combined drying is adopted, so that energy is saved, but the structure is smaller, the primary drying materials are fewer, the power of the infrared heating elements is the same, and the most suitable drying environment can not be provided for different materials.
The chinese patent No. cn2007200343110.X discloses a multi-layer belt dryer, in which each conveyor belt inside a box body has a running direction opposite to an entering direction of hot air, so that materials can make a reverse motion with respect to the dried hot air. The incoming and side-to-side hot dry air blows the material off the conveyor to evaporate the moisture. Heating and recovery then continues. The hot air drying device adopts a hot air drying mode, has a simple structure, can effectively keep a material prototype in the drying process, but has large hot air drying heat pollution and poor drying effect.
Chinese patent No. CN110822836 discloses an external heating temperature control structure of a mesh belt dryer, in which a transmission mesh belt of the mesh belt conveyor is formed by an upper layer mesh belt and a lower layer mesh belt integrally. According to the invention, the drying temperature in each mesh belt conveyor can be adjusted through the air adjusting valve, and the proper drying temperature can be selected according to the drying characteristics of different materials, so that the materials on the mesh belt conveyor can be optimally dried, but a cooling sterilization device is not provided, the product also needs further processing, and the working procedure is complicated.
Disclosure of Invention
The invention provides a three-stage belt type infrared dryer with cooling sterilization and straightening functions, which mainly comprises a feed inlet, a discharge outlet, a drying chamber, a heating system, a conveying system, a ventilation system, a cooling sterilization system and a control system; the drying chamber comprises a drying chamber I, a drying chamber II and a drying chamber III, and materials enter from a feeding port and sequentially pass through the drying chamber I, the drying chamber II and the drying chamber III for three-stage drying; the heating system comprises a heating system I, a heating system II and a heating system III which are respectively arranged at the top of each stage of drying chamber, wherein each heating system comprises a plurality of infrared heaters, the conveying system is arranged at the bottom of each drying chamber and comprises a guide chute, a conveyor belt and a motor, the ventilating system is arranged on the side wall of the drying chamber and has the same wind direction as the material flowing direction and comprises an axial flow fan and an outer cover, the cooling sterilization system is arranged at the top of the drying chamber III and comprises an air inlet, a cooling fan and an ultraviolet lamp, the control system comprises a control panel and a control box, the control device and the cooling sterilization system are opened and closed, the control system controls the speed of the conveyor belt, the range of the control system is 0-0.15 m/s, the angle alpha between the guide chute and the horizontal direction is controlled to be 30-75 degrees, the three-level regulation of the rotational speed of the axial flow fan is controlled, the first level is 500r/min, the second level is 1000r/min, the third level is 1500r/min, the first level is 400r/min, the second level is 700r/min, the third level is 1000r/min, the drying zone and the buffer zone are arranged in the drying chamber, the single infrared heater occupies the uniform radiant energy a on the conveyor belt, the length of a single buffer zone on a conveyor belt is b, energy radiation cannot be received, wherein 80cm & gta & gt50 cm & gtb=0 in a drying chamber I, 75cm & gta & gt45 cm & gtb & gt10 cm & gtb & gtin a drying chamber II, 70cm & gta & gt40 cm & gt30 cm & gtb & gt20 cm & gtb, the single power of an infrared heater in a heating system I is 400-500W, the single power of an infrared heater in a heating system II is 300-400W, the single power of an infrared heater in a heating system III is 200-300W, and the distance and the number of the infrared heaters are configured according to the requirements of different drying stages, so that proper conditions and tempering periods are provided for continuous drying of materials, and the drying effect and quality of the materials are improved.
When in actual use
A three-stage belt type infrared dryer with a cooling sterilization device is provided, a feed inlet is convenient for loading materials, a drying chamber provides a drying space for the materials, an observation window can observe a drying process and a drying effect, a heating system provides energy required for drying the materials, a conveying system drives the materials to travel so as to realize continuous drying, a ventilation system removes redundant water vapor in the drying chamber, the materials are convenient to absorb radiant energy, a cooling sterilization system cools and sterilizes the dried materials, a discharge outlet conveys the dried and sterilized and cooled materials to the outside of the dryer, a control system can control the opening and closing of equipment, the running speed of each conveyor belt, the angle of a guide chute, the rotation speed of an axial flow fan and a cooling fan and the like.
When the device is running
Firstly, a dryer is opened, corresponding drying parameters such as the power of an infrared heater, the belt speed of a conveyor belt and the like are set on a control panel, then materials are put in from a feed inlet, the drying condition of the materials is observed at an observation window, a heating system starts to operate to dry the materials, a conveying system gradually conveys the materials downwards from the uppermost layer of drying chamber, a material guiding groove guides the materials into the next layer of drying chamber, water vapor generated in the process is discharged out of a machine body through a ventilation system, and after the materials are dried, the materials are cooled and sterilized by a cooling and sterilizing system and then conveyed out of the machine body through a discharge hole.
Drawings
FIG. 1 is a side view of a three-stage belt type infrared dryer equipped with a cooling and sterilizing device
Fig. 2 is a front sectional view of a three-stage belt type infrared dryer equipped with a cooling sterilization device
FIG. 3 is a left side partial cross-sectional view of a three-stage belt type infrared dryer equipped with a cooling sterilization device
FIG. 4 is a schematic diagram of a drying zone and a buffer zone
FIG. 5 is a top view of an infrared heater
FIG. 6 is a front view of the cooling sterilizer
FIG. 7 is a plan view of the cooling sterilizer
FIG. 8 is a side view partially in cross-section of a cooling sterilization apparatus
The drawing shows that the device comprises a 1-discharge hole, a 2-axial flow fan, a 3-air inlet, a 4-housing, a 5-feed hole, a 6-observation window, a 7-control panel, an 8-control box, a 9-cooling fan, a 10-ultraviolet lamp, a 11-drying chamber I, a 12-guide chute, a 13-conveyor belt, a 14-heating pipe, a 15-infrared radiation plate, a 16-motor, a 17-roller supporting seat, a 18-roller, a 111-frame, a 20-drying chamber II, a 21-drying chamber III, a 22-fan cover, a 23-drying area and a 24-buffer area.
Detailed Description
The preferred embodiments of the present invention will be described in detail below
A three-stage belt type infrared dryer with cooling sterilization and straightening functions mainly comprises a feed inlet 5, a discharge outlet 1, a drying chamber, a heating system, a conveying system, a ventilation system, a cooling sterilization system and a control system; the drying chamber comprises a drying chamber I11, a drying chamber II20 and a drying chamber III21, and materials enter from a feeding port and sequentially pass through the drying chamber I, the drying chamber II and the drying chamber III for three-stage drying; the heating system comprises a heating system I, a heating system II and a heating system III which are respectively arranged at the top of each stage of drying chamber, each heating system comprises a plurality of infrared heaters, the conveying system is arranged at the bottom of each drying chamber and comprises a guide chute 12, a conveying belt 13 and a motor 16, the ventilation system is arranged on the side wall of the drying chamber, the wind direction is the same as the material flowing direction and comprises an axial flow fan 2 and an outer cover 4, the cooling sterilization system is arranged at the top of a drying chamber III21 and comprises an air inlet 3, a cooling fan 9 and an ultraviolet lamp 10, the control system comprises a control panel 7 and a control box 8, the control equipment and the cooling sterilization system are opened and closed, the control system controls the speed of the conveying belt, the range is 0-0.15 m/s, the angle alpha between the guide chute and the horizontal direction is 30-75 degrees, the primary is 500r/min, the secondary is 1000r/min, the tertiary is 1500r/min, the tertiary is 400r/min, the tertiary is 1000r/min, the tertiary is the tertiary, the infrared heaters are arranged in the drying conveying belt 23 and the single buffer area is a, the single length of the single buffer area is the length of the single buffer area, the single length of the drying area is the single length of the conveyor area is the single length of the drying area, the single length of the buffer area is the length of the single length of the buffer area is equal to the length of the single length of the conveyor area is 23, the method comprises the steps of receiving energy radiation, wherein 80cm & gta & gt50 cm & gtb=0 in a drying chamber I, 75cm & gta & gt45 cm & gtb & gt10 cm & gtb & gtm in a drying chamber II, 70cm & gta & gt40 cm & gt30 cm & gtb & gt20 cm & gtm in a drying chamber III, the single power of an infrared heater in a heating system I is 400-500W, the single power of the infrared heater in the heating system II is 300-400W, the single power of the infrared heater in the heating system III is 200-300W, and the distance and the number of the infrared heaters are configured according to the requirements of different drying stages, so that proper conditions and tempering periods are provided for continuous drying of materials, and the drying effect and quality of the materials are improved.
When in actual use
A three-stage belt type infrared dryer with a cooling sterilization device is provided, a feeding hole is used for loading materials, a drying chamber provides a drying space for the materials, an observation window can observe a drying process and a drying effect, a heating system provides energy required for drying the materials, a conveying system drives the materials to advance so as to realize continuous drying, a ventilation system removes redundant steam in the drying chamber, the materials are convenient to absorb radiation energy, a cooling sterilization system cools and sterilizes the dried materials, a discharging hole conveys the dried and sterilized cooled materials to the outside of the dryer, a control system can control the opening and closing of equipment, the running speed of each conveying belt, the angle of a guide chute, the rotation speed of an axial flow fan and a cooling fan and the like.
When the device is running
Firstly, a dryer is opened, corresponding drying parameters such as the power of an infrared heater, the belt speed of a conveyor belt and the like are set on a control panel, then materials are put in from a feed inlet, the drying condition of the materials is observed at an observation window, a heating system starts to operate to dry the materials, a conveying system gradually conveys the materials downwards from the uppermost layer of drying chamber, a material guiding groove guides the materials into the next layer of drying chamber, water vapor generated in the process is discharged out of a machine body through a ventilation system, and after the materials are dried, the materials are cooled and sterilized by a cooling and sterilizing system and then conveyed out of the machine body through a discharge hole.
Claims (1)
1. A three-stage belt type infrared dryer with cooling sterilization and straightening functions mainly comprises a feed inlet (5), a discharge outlet (1), a drying chamber, a heating system, a conveying system, a ventilation system, a cooling sterilization system and a control system; the drying chamber comprises a drying chamber I (11), a drying chamber II (20) and a drying chamber III (21), and materials enter from a feed inlet and sequentially pass through the drying chamber I, the drying chamber II and the drying chamber III for three-stage drying; the heating system comprises a heating system I, a heating system II and a heating system III which are respectively arranged at the top of each stage of drying chamber, wherein each heating system comprises a plurality of infrared heaters, the conveying system is arranged at the bottom of each drying chamber and comprises a guide chute (12), a conveying belt (13) and a motor (16), the ventilation system is arranged on the side wall of the drying chamber, the wind direction is the same as the material flowing direction and comprises an axial flow fan (2) and an outer cover (4), the cooling sterilization system is arranged at the top of the drying chamber III (21) and comprises an air inlet (3), a cooling fan (9) and an ultraviolet lamp (10), the control system comprises a control panel (7) and a control box (8), the control system controls the speed of the conveying belt, the range of the speed of the conveying system is 0-0.15 m/s, the angle alpha between the guide chute and the horizontal direction is 30-75 DEG, the three-level regulation of the speed of the axial flow fan is controlled, the primary level is 500r/min, the secondary level is 1000r/min, the three-level regulation of the speed of the cooling fan is controlled, the primary level is 400r/min, the secondary level is 700r/min, the three-stage energy radiation type heating system is characterized in that 1000r/min is adopted, a drying area (23) and a buffer area (24) are arranged in a drying chamber, the length of a single drying area (23) on the conveying belt is a, uniform energy radiation of an infrared heater can be received, the length of a single buffer area (24) on the conveying belt is b, and no energy radiation can be received, wherein 80cm & gta & gt50 cm and b=0 in a drying chamber I, 75cm & gta & gt45 cm and 20cm & gtb & gt10 cm are adopted in a drying chamber II, 70cm & gta & gt40 cm and 30cm & gtb & gt20 cm are adopted in a drying chamber III, the single power of the infrared heater in the heating system I is 400-500W, the single power of the infrared heater in the heating system II is 300-400W, and the single power of the infrared heater in the heating system III is 200-300W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277347.0A CN112857010B (en) | 2021-03-15 | 2021-03-15 | A three-stage belt infrared dryer equipped with a cooling and sterilization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277347.0A CN112857010B (en) | 2021-03-15 | 2021-03-15 | A three-stage belt infrared dryer equipped with a cooling and sterilization device |
Publications (2)
| Publication Number | Publication Date |
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| CN112857010A CN112857010A (en) | 2021-05-28 |
| CN112857010B true CN112857010B (en) | 2024-12-24 |
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| CN202110277347.0A Active CN112857010B (en) | 2021-03-15 | 2021-03-15 | A three-stage belt infrared dryer equipped with a cooling and sterilization device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113142518B (en) * | 2021-05-06 | 2023-06-09 | 石河子大学 | Processing method of crisp fruit and vegetable slices and three-stage belt type infrared dryer suitable for same |
| CN113521325B (en) * | 2021-09-09 | 2021-11-26 | 江苏众拾家居科技有限公司 | Steam sterilizing device for furniture surface cloth production |
| CN116473253A (en) * | 2023-04-27 | 2023-07-25 | 名沙食品（江苏）有限公司 | Drying machine for preparing dried fruits and vegetables |
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| IT8021284V0 (en) * | 1980-03-25 | 1980-03-25 | Argon Service Ltd | INFRARED DRYING OVEN OF THE PERFECT TYPE. |
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| CN105737578A (en) * | 2016-02-04 | 2016-07-06 | 中国科学院上海高等研究院 | Multilayer continuous type efficient grain microwave drying equipment |
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