CN209783178U - Electric heating blast air-far infrared combined drying box - Google Patents
Electric heating blast air-far infrared combined drying box Download PDFInfo
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- CN209783178U CN209783178U CN201920117306.3U CN201920117306U CN209783178U CN 209783178 U CN209783178 U CN 209783178U CN 201920117306 U CN201920117306 U CN 201920117306U CN 209783178 U CN209783178 U CN 209783178U
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Abstract
The utility model relates to an electric heat blast air drying cabinet, especially a hot-blast drying cabinet that unites the far infrared. Belongs to the technical field of drying equipment. The electric heating blowing-far infrared combined drying box comprises a box body, a hot air heating unit, a far infrared heating unit, an automatic weighing unit, a PLC (programmable logic controller), an operation and display unit, a wind speed transmitter and a movable iron frame. The PLC controller can cut off the power supply according to the signal transmitted by the weighing transmitter. The drying box can realize hot air-far infrared combined drying which can regulate and control four experimental factors of hot air and far infrared temperature, hot air speed and far infrared radiation distance, can observe the real-time quality of materials, can automatically cut off power when reaching a drying end point, and has high automation degree.
Description
Technical Field
The utility model relates to an electric heat blast air-far infrared combined drying oven belongs to drying equipment technical field.
Background
Hot air and far infrared drying are two common drying methods, and single hot air drying is simple to operate but has high energy consumption during long-time drying. Although far infrared drying has low energy consumption, water vapor in air cannot be discharged in time in the drying process, so that the drying efficiency is reduced. In addition, the air speed of the conventional drying box is fixed and cannot be adjusted, and the air speed is also an important factor influencing the drying of the materials. The real-time water content of sample need constantly take a sample and weigh among the experiment, and frequent switch chamber door not only consumes a large amount of time and energy and reduces the accuracy of weighing to the very big reduction data's of rapid draing's sample, is unfavorable for the experiment.
Chinese patent CN107062827A discloses a "temperature and humidity adjustable far infrared hot air combined drying oven", which can simultaneously dry the hot air and far infrared of the material in the oven, but cannot observe the dynamic change curve of the water content of the material, and cannot set the drying end point for automatic power off. This application can show test sample weight dynamic change curve through the display screen directly perceived to auto-power-off when the material reaches dry terminal point has convenient operation, and the accurate controllable advantage of test result, and need not frequently weigh and calculate material moisture content, degree of automation is high.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems and the defects existing in the prior art, the utility model provides an electric heating blast air-far infrared combined drying box. The electric heating air blast-far infrared combined drying box can realize the respective temperature control of hot air and infrared, the regulation of air speed and the regulation of far infrared radiation distance, can observe the change of real-time mass of materials, reduce weighing time and automatically cut off power when reaching a drying terminal point. The utility model discloses a following technical scheme realizes.
An electric heating blowing-far infrared combined drying box comprises a hot air heating element (14), a fan (13), an air outlet (10), a box door (3), an observation window (4) and a box body (15). The interior of the box body (15) is provided with a hot air heating element (14), a fan (13) and an air outlet (10), and the surface of the box door (3) is provided with an observation window (4). The device is characterized by further comprising a far infrared heating plate (2), a movable iron frame (5), a display module (11), an operation module (12), a tray (6), a pressure rod (8), a gravity sensor, a weighing transmitter (7), a wind speed transmitter (9) and a PLC. The inner top of the box body (15) is provided with a far infrared heating plate (2), the far infrared heating plate is hung at a position 15cm away from the top of the box body (15), and the far infrared heating plate is connected with a PID temperature control meter (1) after being connected with a relay; a hot air heating element (14) is arranged in the box body (15), and the operation module (12) can control the hot air heating element (14); a movable iron frame (5) is arranged in the box body (15), the moving range is 10cm-30cm away from the far infrared heating plate (2), a tray (6) is arranged on the movable iron frame (5), a wind speed transmitter (9) is arranged at a position 1cm away from the tray (6), and the measurable wind speed range is 0-5 m/s; a pressure rod (8) is arranged at the bottom of the tray (6), the pressure rod (8) is connected with a gravity sensor and a weighing transmitter (7) in sequence and then is connected with a PLC controller, and the measurement range of the gravity sensor is 0.3kg-3 kg; the tray (6), the pressure rod (8), the gravity sensor and the weighing transmitter (7) form an automatic weighing unit. The wind speed adjustable range of the fan (13) is 0-3.5m/s, and the fan is connected with the alternating current transformer and then connected with the PLC. The PLC is connected with the operation module (12) and the display module (11), and controls the on-off of the whole drying box after being connected with the relay.
The utility model has the advantages that: the electric heating blast-far infrared combined drying box can carry out hot air-far infrared combined drying experiments with adjustable wind speed, hot air and far infrared temperature and far infrared radiation distance. Real-time wind speed can be observed through the wind speed transmitter (9), the automatic weighing unit can flexibly move up and down along with the movable iron frame (5), a dynamic change curve of the weight of a test sample can be visually displayed through a display screen of the display module (11), and the power can be automatically cut off when the material reaches a drying end point.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
An electric heating blowing-far infrared combined drying box comprises a hot air heating element (14), a fan (13), an air outlet (10), a box door (3), an observation window (4) and a box body (15). The interior of the box body (15) is provided with a hot air heating element (14), a fan (13) and an air outlet (10), and the surface of the box door (3) is provided with an observation window (4). The device is characterized by further comprising a far infrared heating plate (2), a movable iron frame (5), a display module (11), an operation module (12), a tray (6), a pressure rod (8), a gravity sensor, a weighing transmitter (7), a wind speed transmitter (9) and a PLC. The inner top of the box body (15) is provided with a far infrared heating plate (2), the far infrared heating plate is hung at a position 15cm away from the top of the box body (15), and the far infrared heating plate is connected with a PID temperature control meter (1) after being connected with a relay; a hot air heating element (14) is arranged in the box body (15), and the operation module (12) can control the hot air heating element (14); a movable iron frame (5) is arranged in the box body (15), the moving range is 10cm-30cm away from the far infrared heating plate (2), a tray (6) is arranged on the movable iron frame (5), a wind speed transmitter (9) is arranged at a position 1cm away from the tray (6), and the measurable wind speed range is 0-5 m/s; a pressure rod (8) is arranged at the bottom of the tray (6), the pressure rod (8) is connected with a gravity sensor and a weighing transmitter (7) in sequence and then is connected with a PLC controller, and the measurement range of the gravity sensor is 0.3kg-3 kg; the tray (6), the pressure rod (8), the gravity sensor and the weighing transmitter (7) form an automatic weighing unit. The wind speed adjustable range of the fan (13) is 0-3.5m/s, and the fan is connected with the alternating current transformer and then connected with the PLC. The PLC is connected with the operation module (12) and the display module (11), and controls the on-off of the whole drying box after being connected with the relay. A certain set weight is set on the operation module (12), after the materials on the tray (6) reach the set weight within a certain period, the weighing transmitter (7) transmits a signal to the PLC controller to cut off the power supply, and the drying is finished.
In a primary hot air-far infrared combined drying experiment, firstly 600g of materials are placed in a tray (6), the tray (6) is placed on a movable iron frame (5), a switch of an operation module (12) is turned on to electrify a drying box, and the required hot air temperature is set. The required far infrared temperature is set on the PID temperature control meter (1), and the distance between the far infrared heating plate and the material is controlled through the movable iron frame (5) according to the experimental requirement. The wind speed of the fan (13) is adjusted on the operation module (12), and the wind speed is displayed in real time by the wind speed transmitter (9). During the drying process, the mass curve of the material is displayed on a display module (11). A certain set weight is set on the operation module (12), the weighing transmitter (7) transmits a signal to the PLC controller after the material on the tray (6) reaches the set weight in a certain period, the PLC controller cuts off the power supply after receiving the signal, and the drying is finished.
The detailed description of the embodiments of the present invention with reference to the drawings is a convenient embodiment and is only used for describing the present invention. However, the present invention is not limited to the above embodiments, and may be flexibly applied to the basic embodiment of the present invention by researchers in the dry field, and the present invention is not separated from the experiments of the technical features of the present invention.
Claims (5)
1. An electric heating blowing-far infrared combined drying box comprises a hot air heating element (14), a fan (13), an air outlet (10), a box door (3), an observation window (4) and a box body (15); a hot air heating element (14), a fan (13) and an air outlet (10) are arranged in the box body (15), and an observation window (4) is arranged on the surface of the box door (3); the device is characterized by further comprising a far infrared heating plate (2), a movable iron frame (5), a display module (11), an operation module (12), a tray (6), a pressure rod (8), a gravity sensor, a weighing transmitter (7), a wind speed transmitter (9) and a PLC (programmable logic controller); the inner top of the box body (15) is provided with a far infrared heating plate (2), the far infrared heating plate is hung at a position 15cm away from the top of the box body (15), and the far infrared heating plate is connected with a PID temperature control meter (1) after being connected with a relay; a hot air heating element (14) is arranged in the box body (15), and the operation module (12) can control the hot air heating element (14); a movable iron frame (5) is arranged in the box body (15), the moving range is 10cm-30cm away from the far infrared heating plate (2), a tray (6) is arranged on the movable iron frame (5), a wind speed transmitter (9) is arranged at a position 1cm away from the tray (6), and the measurable wind speed range is 0-5 m/s; a pressure rod (8) is arranged at the bottom of the tray (6), the pressure rod (8) is connected with a gravity sensor and a weighing transmitter (7) in sequence and then is connected with a PLC (programmable logic controller), the measurement range of the gravity sensor is 0.3kg-3kg, and the tray (6), the pressure rod (8), the gravity sensor and the weighing transmitter (7) form an automatic weighing unit; the wind speed adjustable range of the fan (13) is 0-3.5m/s, and the fan is connected with the alternating current transformer and then connected with the PLC; the PLC is connected with the operation module (12) and the display module (11), and controls the on-off of the whole drying box after being connected with the relay.
2. The electric heating blowing-far infrared combined drying box according to claim 1, characterized in that: the PLC controller is placed in a control room of the box body (15), the hot air heating element (14) can be controlled to heat through the operation module (12), the air speed of the fan (13) is adjusted, and the on-off of the whole box body (15) can be controlled through the connection relay.
3. The electric heating blowing-far infrared combined drying box according to claim 1, characterized in that: automatic weighing unit accessible display module (11) visual display test sample weight dynamic change curve, the accessible sets up a certain weight value of setting for on operation module (12), and after the material reached this quality at a certain period on tray (6), weighing changer (7) give the PLC controller with signal transmission, and the PLC controller cuts off the power, and the drying cabinet stops working.
4. The electric heating blowing-far infrared combined drying box according to claim 1, characterized in that: the automatic weighing unit can move up and down along with the movable iron frame (5).
5. The electric heating blowing-far infrared combined drying box according to claim 1, characterized in that: the far infrared heating plate (2) is a customized complete ceramic infrared heating plate, the specification is 450mm multiplied by 300mm, a resistance wire is arranged in the far infrared heating plate, the heating is uniform, the rated voltage is 220V, the power is 2000W, and the highest temperature can reach 300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920117306.3U CN209783178U (en) | 2019-01-23 | 2019-01-23 | Electric heating blast air-far infrared combined drying box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920117306.3U CN209783178U (en) | 2019-01-23 | 2019-01-23 | Electric heating blast air-far infrared combined drying box |
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| Publication Number | Publication Date |
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| CN209783178U true CN209783178U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920117306.3U Active CN209783178U (en) | 2019-01-23 | 2019-01-23 | Electric heating blast air-far infrared combined drying box |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413997A (en) * | 2020-11-24 | 2021-02-26 | 安徽中谷食品有限公司 | Baked food cooling box for food processing |
| CN112460954A (en) * | 2020-11-27 | 2021-03-09 | 安徽众盛农业发展有限公司 | Drying device of middle chicken feed for broiler breeding |
| CN116379718A (en) * | 2023-03-10 | 2023-07-04 | 江苏科技大学 | Infrared and hot air combined intelligent control drying system and method based on multi-source information fusion |
-
2019
- 2019-01-23 CN CN201920117306.3U patent/CN209783178U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413997A (en) * | 2020-11-24 | 2021-02-26 | 安徽中谷食品有限公司 | Baked food cooling box for food processing |
| CN112460954A (en) * | 2020-11-27 | 2021-03-09 | 安徽众盛农业发展有限公司 | Drying device of middle chicken feed for broiler breeding |
| CN116379718A (en) * | 2023-03-10 | 2023-07-04 | 江苏科技大学 | Infrared and hot air combined intelligent control drying system and method based on multi-source information fusion |
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