Drying device with online moisture monitoring function

By setting up a detection mechanism and a drying mechanism in the drying device, and using the cooperation of trays, scrapers, springs and indicator rods, the weight change of the material is monitored in real time. Combined with the use of electric heating rods and air pumps, the problem of the drying oven being unable to accurately detect the moisture content of the water-absorbing material is solved, and accurate and efficient drying is achieved.

CN223826647UActive Publication Date: 2026-01-23CANGZHOU HUAHAISHUNDA GRAIN & OIL FLAVOR CO LTD
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Patent Information

Application Number
CN202520088369.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-23
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing drying ovens cannot accurately detect the moisture content of absorbent materials.

Method used

A drying device with online moisture monitoring function was designed. By setting up a detection mechanism and a drying mechanism, and using the cooperation of a tray, scraper, spring and indicator rod, the weight change of the material is monitored in real time. Combined with the use of electric heating rod and air pump, the device can accurately dry and detect the moisture of water-absorbing materials.

Benefits of technology

It enables accurate drying and moisture detection of absorbent materials, improves drying efficiency, and ensures the accuracy of detection and the adequacy of drying.

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Abstract

The utility model belongs to the technical field of drying machines, and particularly relates to a drying device with an on-line moisture monitoring function, which comprises a barrel. A detection mechanism is arranged on the inner side of the barrel, a drying mechanism is arranged at the bottom end of the inner side of the barrel, a fixing mechanism is arranged on the circumferential face of the barrel, the detection mechanism comprises a tray, a round rod is fixed to the top side of the tray, a rotary disc is fixed to the top end of the shell, and scraping rods are evenly fixed to the circumferential face of the shell. A first spring is fixedly connected between the top end of the round rod and the top end of the inner side of the cylinder barrel, a scale groove is formed in the circumferential face of the indicating rod, materials are placed on the inner side of the tray, in the drying process, the weight of the materials on the inner side of the tray changes along with water evaporation, and at the moment, the first spring pulls the round rod to drive the tray to ascend; by observing the scale groove in the surface of the indicating rod, data of weight change is measured, so that the function of detecting moisture is realized, and the problem that a moisture detection electrode cannot accurately detect a water absorbing material is solved.
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Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a drying device with online moisture monitoring function. Background Technology

[0002] The internal production process in a factory typically includes material preparation, processing, quality control, and packaging, in order to produce products that meet standards. Some materials need to be cleaned or immersed in liquid during the production and processing process. After the production and processing is completed, the materials need to be dried using a drying device for subsequent packaging.

[0003] A drying oven with real-time moisture detection function, disclosed in announcement number CN212902311U, comprises a drying oven body as the main body, with a real-time moisture detection device installed on the outer wall of the drying oven body and a drying chamber inside the drying oven body. The real-time moisture detection device consists of an air inlet pipe, a powder inlet pipe, a moisture detection pipe, and a powder return pipe, which are connected sequentially. A contraction section is provided in the middle of the air inlet pipe, and the powder inlet pipe is connected to the contraction section of the air inlet pipe. One end of the powder inlet pipe is connected to the inside of the drying chamber, and the powder return pipe is also connected to the inside of the drying chamber. A moisture detection electrode is installed inside the moisture detection pipe. Through the structure of the moisture detection pipe and the moisture detection electrode, the drying oven can monitor the moisture content of the material in real time. At the same time, the moisture detection pipe can protect the moisture detection electrode, thereby facilitating the drying of materials by the drying device.

[0004] The above-described drying oven with real-time moisture detection function still has a problem. During the use of this drying oven, moisture is detected by a moisture detection electrode. If the material is a water-absorbing material, the drying oven will not be able to accurately detect the moisture. Therefore, a drying device with online moisture monitoring function is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, commercially available drying ovens use moisture detection electrodes to detect moisture during operation. However, if the material is absorbent, the drying oven cannot accurately detect the moisture content. This invention proposes a drying device with online moisture monitoring functionality.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The drying device with online moisture monitoring function described in this utility model includes a cylinder; a detection mechanism is provided on the inner side of the cylinder, a drying mechanism is provided at the bottom of the inner side of the cylinder, a fixing mechanism is provided on the circumferential surface of the cylinder, and a tray is slidably installed on the inner side of the cylinder.

[0007] Preferably, the detection mechanism includes a tray, a round rod fixed to the top side of the tray, a housing rotatably mounted to the bottom end of the round rod, a turntable fixed to the top end of the housing, scrapers evenly fixed to the circumferential surface of the housing, a cylinder fixed to the center of the top side of the cylinder, a first spring fixedly connected between the top end of the round rod and the top end of the inner side of the cylinder, an indicator rod fixed to the top end of the round rod, a graduated groove opened on the circumferential surface of the indicator rod, the indicator rod slidingly inserted into the top side of the cylinder, the round rod slidingly mounted inside the cylinder, the first spring being fitted onto the indicator rod, and a hollow shell placed at the bottom end of the inner side of the cylinder. Through the cooperation of the spring and the round rod, the mechanism simultaneously detects weight changes during the drying process and measures the evaporated moisture, without being affected by the material during the detection process.

[0008] Preferably, the drying mechanism includes a hollow shell, an output pipe fixed to the top side of the hollow shell, an air supply pipe slidably inserted inside the output pipe, a ventilation hole on the top side of the cylinder, an air pump fixed to the bottom circumferential surface of the cylinder, a conduit fixed to the output end of the air pump, one end of the conduit passing through the cylinder and communicating with the inside of the hollow shell, a cavity on the inside of the tray, air holes evenly distributed on the top side of the tray, the top end of the air supply pipe passing through the tray and communicating with the inside of the cavity, heating rods evenly fixed inside the cylinder, and a movable door rotatably installed on the bottom circumferential surface of the cylinder via a hinge. Through the cooperation of the air pump and the heating rods, airflow is driven while heating, improving the efficiency of material drying.

[0009] Preferably, the fixing mechanism includes a movable door, with symmetrical grooves at both ends of the inner side of the movable door. A locking block is slidably installed inside the groove, and a second spring is fixedly connected between the locking block and one end of the inner side of the groove. A handle is fixed to one end of the side of the movable door, and a fixing groove is opened on both sides of the cylinder. One end of the locking block is fastened to the inside of the fixing groove. Through the cooperation of the locking block and the spring, the automatic fixing function is realized, which makes it convenient for the operator to open and close the movable door and change the material being dried.

[0010] The advantages of this utility model are:

[0011] 1. This utility model relates to a drying device with online moisture monitoring. By setting up a detection mechanism, the material is placed inside the tray, and the turntable is rotated to make the shell rotate, thereby causing the scraper to evenly disperse the material inside the tray. At the same time, the material stretches the first spring through the round rod. During the drying process, as the moisture evaporates, the weight of the material inside the tray changes. At this time, the first spring pulls the round rod to make the tray rise. By observing the scale groove on the surface of the indicator rod, the data of the weight change is measured, thereby realizing the function of moisture detection and solving the problem that the moisture detection electrode cannot accurately detect water-absorbing materials.

[0012] 2. This utility model, through the structural design of a drying device with online moisture monitoring function, sets up a drying mechanism, turns on the heating rod to heat the bottom of the inner side of the cylinder, controls the air pump to deliver air into the hollow shell through the conduit, and with the cooperation of the output pipe and the air supply pipe, the air is delivered to the inner side of the cavity. At this time, the heating rod can heat the air inside the cavity and make it spray out from the air hole, thereby drying the material from the bottom side and preventing the material from being insufficiently dried. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure;

[0015] Figure 2 This is a rear-view three-dimensional structural sectional view of the testing facility;

[0016] Figure 3 This is a top-view sectional view of the drying mechanism.

[0017] Figure 4 This is a side view of the three-dimensional structure of the fixed mechanism;

[0018] Figure 5 This is a sectional view of the overall frontal three-dimensional structure.

[0019] In the diagram: 1. Cylinder; 2. Tray; 3. Round rod; 4. Shell; 5. Turntable; 6. Scraper; 7. Cylinder; 8. Indicator rod; 9. First spring; 10. Scale groove; 11. Ventilation hole; 12. Cavity; 13. Air hole; 14. Hollow shell; 15. Output pipe; 16. Air supply pipe; 17. Air pump; 18. Conduit; 19. Heating rod; 20. Movable door; 21. Slide groove; 22. Locking block; 23. Second spring; 24. Fixing groove; 25. Handle; 26. Rectangular groove; 27. Roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 As shown, a drying device with online moisture monitoring function includes a cylinder 1; a detection mechanism is provided inside the cylinder 1, a drying mechanism is provided at the bottom of the inner side of the cylinder 1, a fixing mechanism is provided on the circumferential surface of the cylinder 1, and a tray 2 is slidably installed inside the cylinder 1.

[0022] Please see Figure 2 As shown, the detection mechanism includes a tray 2, a round rod 3 fixed to the top side of the tray 2, a housing 4 rotatably mounted to the bottom end of the round rod 3, a turntable 5 fixed to the top end of the housing 4, scraper rods 6 evenly fixed on the circumferential surface of the housing 4, a cylinder 7 fixed at the center of the top side of the cylinder 1, a first spring 9 fixedly connected between the top end of the round rod 3 and the inner top end of the cylinder 7, an indicator rod 8 fixed to the top end of the round rod 3, a scale groove 10 formed on the circumferential surface of the indicator rod 8, the indicator rod 8 slidingly inserted through the top side of the cylinder 7, the round rod 3 slidingly mounted inside the cylinder 7, the first spring 9 fitted onto the indicator rod 8, and the bottom end of the inner side of the cylinder 1... A hollow shell 14 is placed inside. During operation, when the material being dried is absorbent and the moisture content cannot be accurately detected by the moisture detection electrode, the detection mechanism is used to place the material inside the tray 2. The turntable 5 is rotated to make the shell 4 rotate, thereby causing the scraper 6 to evenly distribute the material inside the tray 2. At the same time, the material stretches the first spring 9 through the round rod 3. During the drying process, as the moisture evaporates, the weight of the material inside the tray 2 changes. At this time, the first spring 9 pulls the round rod 3 to make the tray 2 rise. By observing the scale groove 10 on the surface of the indicator rod 8, the data of the weight change is measured, thereby realizing the function of moisture detection.

[0023] Please see Figure 3As shown, the drying mechanism includes a hollow shell 14, an output pipe 15 fixed to the top side of the hollow shell 14, an air supply pipe 16 slidably inserted inside the output pipe 15, a ventilation hole 11 opened on the top side of the cylinder 1, an air pump 17 fixed on the bottom circumferential surface of the cylinder 1, a conduit 18 fixed to the output end of the air pump 17, one end of the conduit 18 passing through the cylinder 1 and communicating with the inside of the hollow shell 14, a cavity 12 opened inside the tray 2, air holes 13 evenly opened on the top side of the tray 2, the top end of the air supply pipe 16 passing through the tray 2 and communicating with the inside of the cavity 12, and heating rods 1 evenly fixed inside the cylinder 1. 9. A movable door 20 is rotatably installed on the bottom circumferential surface of the cylinder 1 via a hinge. During operation, when encountering problems such as complex structure of the drying device and low drying efficiency, the structure of the drying mechanism is used to open the heating rod 19 to heat the bottom inner side of the cylinder 1. The air pump 17 is controlled to deliver air into the hollow shell 14 through the conduit 18. With the cooperation of the output pipe 15 and the air supply pipe 16, the air is delivered to the inside of the cavity 12. At this time, the heating rod 19 can heat the air inside the cavity 12, causing it to be sprayed out from the air hole 13, thereby starting the drying of the material from the bottom side and preventing insufficient drying of the material.

[0024] Please see Figure 4 As shown, the fixing mechanism includes a movable door 20. Sliding grooves 21 are symmetrically formed at both ends of the inner side of the movable door 20. A locking block 22 is slidably installed inside the sliding groove 21. A second spring 23 is fixedly connected between the locking block 22 and one end of the inner side of the sliding groove 21. A handle 25 is fixed to one side of the movable door 20. Fixing grooves 24 are formed on both sides of the movable door 20 in the cylinder 1. One end of the locking block 22 is fastened to the inside of the fixing groove 24. During operation, when encountering the problem of low drying efficiency in existing drying devices, the structure of the fixing mechanism allows the handle 25 to be pulled, causing the movable door 20 to open. At this time, the cylinder 1 pushes the locking block 22 to move out from the inside of the fixing groove 24. After the material is placed inside the cylinder 1, the movable door 20 is closed. The second spring 23 then pushes the locking block 22 out, fastening it to the inside of the fixing groove 24, thus fixing the position of the movable door 20. The operation is simple, convenient for operators to store and retrieve materials, and improves the drying efficiency of the drying device.

[0025] Please see Figure 5 As shown, rectangular grooves 26 are evenly distributed on the circumferential surface of the tray 2. Rollers 27 are rotatably installed inside the rectangular grooves 26. During operation, when the friction between the tray 2 and the cylinder 1 is too large, resulting in inaccurate detection structure, the rollers 27 contact the inner surface of the cylinder 1 through the structure of the rollers 27, and reduce the friction between the contact surfaces through rolling friction, thereby ensuring the accuracy of the detection structure.

[0026] Working Principle: The internal production process in a factory typically includes material preparation, processing, quality control, and packaging to produce products that meet standards. During the processing of some materials, cleaning or immersion in liquid is required. After processing, the material needs to be dried using a drying device for subsequent packaging. Existing drying devices use moisture detection electrodes to detect moisture content. However, if the material is absorbent, the drying oven cannot accurately detect moisture. To solve this problem, a detection mechanism and a drying mechanism are incorporated. Pulling handle 25 opens the movable door 20, causing cylinder 1 to push the locking block 22 out from the inside of the fixed groove 24. Once the material is placed inside cylinder 1, rotating turntable 5 rotates the housing 4, causing scraper 6 to evenly distribute the material inside tray 2. Then, the movable door 20 closes, and the second spring 23 pushes the locking block 22 out, securing it to the fixed groove 24. Inside, the movable door 20 is fixed in position. The material is placed inside the tray 2. The first spring 9 is stretched by the round rod 3. At this time, the electric heating rod 19 is turned on to heat the bottom of the inner side of the cylinder 1. The air pump 17 is controlled to deliver air into the hollow shell 14 through the conduit 18. With the cooperation of the output pipe 15 and the air supply pipe 16, the air is delivered to the inside of the cavity 12. At this time, the electric heating rod 19 can heat the air inside the cavity 12, which is then sprayed out from the air hole 13, thus drying the material from the bottom. During the drying process, as the moisture evaporates, the weight of the material inside the tray 2 changes. At this time, the first spring 9 pulls the round rod 3 to make the tray 2 rise. By observing the scale groove 10 on the surface of the indicator rod 8, the data of the weight change is measured, thus realizing the function of moisture detection. Moreover, the detection structure is not easily affected by other factors. After drying is completed, the movable door 20 is opened in the same way to remove the material. This solves the problem that the moisture detection electrode cannot accurately detect water-absorbing materials.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A drying device with online moisture monitoring function, characterized in that: Includes a cylinder (1); a detection mechanism is provided inside the cylinder (1), a drying mechanism is provided at the bottom of the inner side of the cylinder (1), a fixing mechanism is provided on the circumferential surface of the cylinder (1), and a tray (2) is slidably installed inside the cylinder (1). The detection mechanism includes a tray (2), a round rod (3) fixed on the top side of the tray (2), a housing (4) rotatably mounted on the bottom end of the round rod (3), a turntable (5) fixed on the top end of the housing (4), scrapers (6) evenly fixed on the circumferential surface of the housing (4), a cylinder (7) fixed at the center of the top side of the cylinder (1), a first spring (9) fixedly connected between the top end of the round rod (3) and the top end of the inner side of the cylinder (7), an indicator rod (8) fixed on the top end of the round rod (3), and a scale groove (10) opened on the circumferential surface of the indicator rod (8).

2. A drying device with online moisture monitoring function according to claim 1, characterized in that: The indicator rod (8) is slidably inserted on the top side of the cylinder (7), the round rod (3) is slidably installed on the inside of the cylinder (7), the first spring (9) is fitted on the indicator rod (8), and a hollow shell (14) is placed at the bottom of the inner side of the cylinder (1).

3. A drying device with online moisture monitoring function according to claim 2, characterized in that: The drying mechanism includes a hollow shell (14), an output pipe (15) is fixed on the top side of the hollow shell (14), an air supply pipe (16) is slidably inserted inside the output pipe (15), a ventilation hole (11) is opened on the top side of the cylinder (1), an air pump (17) is fixed on the bottom circumferential surface of the cylinder (1), and a conduit (18) is fixed at the output end of the air pump (17).

4. A drying device with online moisture monitoring function according to claim 3, characterized in that: One end of the conduit (18) passes through the cylinder (1) and communicates with the inside of the hollow shell (14). The inside of the tray (2) is provided with a cavity (12). The top side of the tray (2) is provided with air holes (13). The top end of the gas pipe (16) passes through the tray (2) and communicates with the inside of the cavity (12). The inside of the cylinder (1) is uniformly fixed with electric heating rods (19). The bottom circumferential surface of the cylinder (1) is provided with a movable door (20) which is rotatably installed by a hinge.

5. A drying device with online moisture monitoring function according to claim 4, characterized in that: The fixing mechanism includes a movable door (20), and the movable door (20) has symmetrically opened grooves (21) at both ends on the inner side. A locking block (22) is slidably installed on the inner side of the groove (21), and a second spring (23) is fixedly connected between the locking block (22) and one end of the inner side of the groove (21).

6. A drying device with online moisture monitoring function according to claim 5, characterized in that: The movable door (20) has a handle (25) fixed on one side. The cylinder (1) has a fixing groove (24) on both sides of the movable door (20). One end of the locking block (22) is fastened to the inside of the fixing groove (24).

Citation Information

Patent Citations

  • Drying furnace with real-time moisture detection function

    CN212902311U