A dryer having a heat insulation structure

By installing heat flow and drainage components in the dryer, the problem of uneven material drying caused by uneven hot air flow is solved, achieving more efficient drying effect and reduced energy consumption, and providing dry and wet separation function.

CN224327499UActive Publication Date: 2026-06-05NANTONG HANWEI MACHINERY MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HANWEI MACHINERY MFG CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing dryers use hot air flow in a closed space, which leads to uneven drying of the material surface and reduces drying efficiency.

Method used

A dryer with a heat insulation structure was designed, including a heat flow component and a drainage component. Hot air flows outward and upward through the bottom of the tray. Combined with the reverse movement of the spiral belt and the setting of the heat insulation cavity, the uniform distribution of hot air and the separation of dry and wet materials are achieved.

Benefits of technology

It improves the drying effect on uneven or gap-filled material surfaces, extends drying time, reduces energy consumption, and achieves dry-wet separation, ensuring the drying effect of the material.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224327499U_ABST
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Abstract

The utility model relates to drying -machine technical field, and disclose a drying -machine with heat -insulating structure, this drying -machine with heat -insulating structure, including machine body, the top detachable installation of machine body has the box cover, the bottom inner wall of machine body is fixedly installed and has the air inlet pipe, the top outer wall of box cover is fixedly installed and has the exhaust valve, the inside of machine body is provided with hot flow subassembly. Through being provided with hot flow subassembly, hot -blast flows outward and above through the arc surface of the bottom of bearing tray, when hot -blast meets the arc surface of cone cylinder and the guidance of spiral belt, greater reverse movement can be produced between the airflow that spirally rises and the material placed on bearing tray, thereby can produce better hot -blast drying effect to the material that surface uneven or has more gap, cooperate the setting of heat preservation cavity simultaneously, to make the drying efficiency of the inside space of cone cylinder can maintain for a long time, improve the use effect of device, reduce energy consumption.
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Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a dryer with a heat insulation structure. Background Technology

[0002] Dryers come in several modes, including belt dryers, drum dryers, box dryers, and tower dryers; heat sources include coal, electricity, and gas; the drying process can be hot air flow or radiation. In hot air drum dryers, hot air flows from the rear to the front, making full contact with the material and fully utilizing heat transfer through conduction, convection, and radiation; heat energy is directly transferred to the material, causing the moisture in the material to evaporate continuously inside the drum. The induced draft device at the feed inlet extracts a large amount of moisture and humid airflow, preventing secondary pollution caused by dust discharge; the material is propelled by internal spiral stirring, sweeping, and lifting plates to complete the entire drying process.

[0003] According to a dryer with a heat insulation structure disclosed in the above application (Announcement No.: CN221505526U), by setting a dryer base, the various devices can be used in an orderly manner to prevent mutual interference. By setting a heat insulation inner layer, the heat insulation inner layer can fully cover all corners, increasing the heat utilization efficiency of the device.

[0004] However, in actual use, the hot air blown from the side onto the material in the above-mentioned equipment is blown into the material. But in a relatively enclosed space, the hot air flows upward, which causes the degree of heating and drying of different parts of the outer surface of the material to be inconsistent, thereby reducing the drying efficiency of the entire equipment. In view of this, we propose a dryer with a heat insulation structure. Utility Model Content

[0005] The purpose of this invention is to provide a dryer with a heat insulation structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dryer with a heat insulation structure, comprising a body, a lid detachably installed on the top of the body, an air inlet pipe fixedly installed on the bottom inner wall of the body, an exhaust valve fixedly installed on the top outer wall of the lid, and a heat flow assembly provided inside the body;

[0007] The heat flow assembly includes a drive motor, which is fixedly mounted on the bottom outer wall of the machine body. A pinion is fixedly mounted on the output end of the drive motor. An internal gear turntable is rotatably mounted on the bottom inner wall of the machine body. A support tray is fixedly mounted on the upper surface of the internal gear turntable. A cone is fixedly mounted on the bottom inner wall of the machine body. A spiral band is fixedly mounted on the arc-shaped inner wall of the cone. A heat insulation cavity is formed on the inner wall of the cone. A partition is provided inside the heat insulation cavity. A vent is formed on the inner wall of the partition.

[0008] Preferably, the center of the internal gear turntable has a circular hole with a diameter that matches the inner diameter of the air intake pipe, and the end of the air intake pipe is rotatably connected to the surface of the internal gear turntable to avoid motion interference between the two.

[0009] Preferably, the bottom surface of the internal gear turntable is provided with a gear ring that meshes with the pinion to achieve transmission, so that when the drive motor is started to drive the pinion to rotate, the internal gear turntable can be driven to rotate continuously on the bottom inner wall of the machine body.

[0010] Preferably, the bottom surface of the tray is configured as an arc shape with a lower center and a higher outer edge, so that the hot air entering the machine body through the air inlet pipe can flow outward. At the same time, the inside of the tray is provided with several breathable mesh holes to improve the drying effect of the material placed on the tray.

[0011] Preferably, the spiral band is spirally arranged on the inner surface of the cone, and the spiral direction of the spiral band is opposite to the direction of rotation of the internal toothed turntable, so as to improve the drying effect of the material as it rotates with the tray.

[0012] Preferably, a drainage component is provided on the arc-shaped outer surface of the spiral belt, the drainage component includes a curved belt, the curved belt is fixedly installed on the lower surface of the spiral belt away from the inner surface of the cone, an arc-shaped flow channel is opened on the upper surface of the spiral belt, and a drainage hole is opened on the bottom inner wall of the machine body.

[0013] Preferably, the end section of the curved strip is J-shaped, and the bottom end of the curved strip faces the arc-shaped inner surface of the cone. When the drying hot steam carrying water vapor moves upward and encounters the spiral strip, it may form water droplets. Under the action of gravity, these water droplets flow downward along the lower surface of the spiral strip and are eventually guided by the curved strip to drip into the arc-shaped flow channel opened at the top of the spiral strip below.

[0014] Compared with the prior art, the present invention provides a dryer with a heat insulation structure, which has the following beneficial effects:

[0015] 1. This dryer with a heat-insulated structure is equipped with a heat flow component. Hot air flows outward and upward through the arc-shaped surface at the bottom of the tray. When the hot air encounters the arc-shaped surface of the cone and is guided by the spiral belt, the spiraling airflow can generate greater counter-movement with the material placed on the tray. This results in a better hot air drying effect on materials with uneven surfaces or many gaps. At the same time, the heat-insulating chamber ensures that the drying efficiency of the internal space of the cone can be maintained for a long time, improving the effectiveness of the device and reducing energy consumption.

[0016] 2. This dryer with a heat-insulating structure is equipped with a drainage component. During the drying process, the moisture carried by the hot air moves upward and may form water droplets when it encounters the spiral belt. These water droplets flow downward along the lower surface of the spiral belt under the action of gravity, and are eventually guided by the curved belt to drip into the arc-shaped flow channel opened at the top of the spiral belt below, and continue to flow downward along the arc-shaped flow channel. During this process, the water flow will not affect the material placed on the tray, thus ensuring the drying effect of the material and achieving dry and wet separation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the heat flow component structure of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the conical cylinder structure of this utility model.

[0021] In the diagram: 1. Body; 2. Cover; 3. Inlet pipe; 4. Exhaust valve; 5. Heat flow assembly; 51. Drive motor; 52. Pinion; 53. Internal gear turntable; 54. Support tray; 55. Conical cylinder; 56. Spiral belt; 57. Insulation chamber; 58. Vent hole; 6. Drainage assembly; 61. Curved belt; 62. Arc-shaped flow channel; 63. Drain hole. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a dryer with a heat insulation structure, including a body 1, a lid 2 detachably installed on the top of the body 1, an air inlet pipe 3 fixedly installed on the bottom inner wall of the body 1, an exhaust valve 4 fixedly installed on the top outer wall of the lid 2, and a heat flow assembly 5 arranged inside the body 1. The heat flow assembly 5 includes a drive motor 51, a pinion 52, an internal gear turntable 53, a support tray 54, a cone 55, a spiral belt 56, a heat insulation cavity 57, and a vent 58.

[0023] In one embodiment of this utility model, a drive motor 51 is fixedly installed on the bottom outer wall of the machine body 1, a pinion 52 is fixedly installed at the output end of the drive motor 51, an internal gear turntable 53 is rotatably installed on the bottom inner wall of the machine body 1, a support tray 54 is fixedly installed on the upper surface of the internal gear turntable 53, a cone 55 is fixedly installed on the bottom inner wall of the machine body 1, a spiral belt 56 is fixedly installed on the arc-shaped inner wall of the cone 55, a heat preservation cavity 57 is opened on the inner wall of the cone 55, a partition strip is provided inside the heat preservation cavity 57, and a vent hole 58 is opened on the inner wall of the partition strip.

[0024] Furthermore, a sealing structure is provided between the top of the cover 2 and the top of the body 1 to ensure that the internal cavity of the body 1 is in a relatively sealed state when the device is working, so as to reduce heat loss. At the same time, the air inlet pipe 3 is connected to the output end of the hot air blower, and the bottom inner surface of the cover 2 is set in an arc shape so that when the drying operation is carried out, the hot air is input into the internal cavity of the body 1 through the air inlet pipe 3 and finally discharged out through the exhaust valve 4, thereby realizing the drying of materials by the flowing hot air. At the same time, the detachable cover 2 makes it convenient for the staff to take out and put in the materials to be dried, improving the convenience of the device.

[0025] In addition, a circular hole with a diameter matching the inner diameter of the air inlet pipe 3 is provided at the center of the internal gear turntable 53, and the end of the air inlet pipe 3 is rotatably connected to the surface of the internal gear turntable 53 to avoid motion interference between the two. At the same time, a gear ring is provided on the bottom surface of the internal gear turntable 53 to mesh with the pinion 52 to achieve transmission. Thus, when the drive motor 51 starts to drive the pinion 52 to rotate, the internal gear turntable 53 can be driven to rotate continuously on the bottom inner wall of the machine body 1. Specifically, a certain gap is provided between the tray 54 and the internal gear turntable 53, and the bottom surface of the tray 54 is set into an arc shape with a low center and a high outer edge, so that the hot air entering the machine body 1 through the air inlet pipe 3 can flow outward. At the same time, several ventilation mesh holes are provided inside the tray 54 to improve the drying effect of the material placed on the tray 54. Specifically, the cone 55 and the internal gear turntable 53 are coaxially arranged to facilitate the placement of materials and improve the drying effect of the hot air circulation around the materials.

[0026] Meanwhile, the spiral belt 56 is spirally arranged on the inner surface of the cone 55, and the spiral direction of the spiral belt 56 is opposite to the rotation direction of the internal toothed disc 53. This allows the hot airflow to spiral upward along the spiral belt 56 inside the cone 55, generating greater counter-movement between it and the material placed on the tray 54. This results in a better hot air drying effect for materials with uneven surfaces or many gaps. In addition, multiple sets of heat-insulating chambers 57 are provided, and these multiple sets of heat-insulating chambers 57 are equidistantly arranged inside the cone 55. Separating strips are provided between adjacent sets of heat-insulating chambers 57, so multiple sets of separating strips are also provided. The ventilation holes 58 between adjacent sets of separating strips are staggered to allow the air in the heat-insulating chambers 57 to better retain heat and reduce the rate of heat loss inside the cone 55, thereby ensuring the overall hot air drying effect of the device.

[0027] In an embodiment of this utility model, a drainage component 6 is provided on the arc-shaped outer surface of the spiral belt 56. The drainage component 6 includes a curved belt 61. The curved belt 61 is fixedly installed on the lower surface of the spiral belt 56 away from the inner surface of the cone 55. An arc-shaped flow channel 62 is opened on the upper surface of the spiral belt 56. A drainage hole 63 is opened on the bottom inner wall of the body 1.

[0028] Specifically, the end section of the curved belt 61 is J-shaped, and the bottom end of the curved belt 61 faces the arc-shaped inner surface of the cone 55. Furthermore, the arc-shaped flow channel 62 is spirally arranged on the upper surface of the spiral belt 56, and the bottom end of the curved belt 61 is positioned between the arc-shaped flow channel 62 and the arc-shaped inner surface of the cone 55 in the horizontal direction. This allows the moisture carried by the hot air during the drying process to move upwards, potentially forming water droplets upon encountering the spiral belt 56. These water droplets flow downwards along the lower surface of the spiral belt 56 under gravity, ultimately passing through the curved belt 61. Guided by the flow of water 1, the water drips into the arc-shaped flow channel 62 at the top of the spiral belt 56 below, and continues to flow downward along the arc-shaped flow channel 62. During this process, the water flow will not affect the material placed on the tray 54, thus ensuring the drying effect of the material and achieving dry and wet separation. It is worth noting that the drain hole 63 is equipped with a sealing collection device during use to ensure the relative sealing of the inside of the machine body 1. At the same time, the drain hole 63 is aligned with the bottom end face of the spiral belt 56, so that the condensed water will eventually flow into the drain hole 63 for collection, ensuring the normal operation of the material drying process.

[0029] In this invention, during use, the lid 2 is opened, the material is placed on the tray 54, and then the lid 2 is closed while ensuring the top of the machine body 1 is sealed. At this time, the external hot air blower is started to continuously blow dry hot air into the air inlet pipe 3. Simultaneously, the drive motor 51 is started, working with the pinion 52 and the internal gear turntable 53 to drive the tray 54 to rotate continuously inside the machine body 1. The hot air flows outward and upward through the arc-shaped surface at the bottom of the tray 54. When the hot air encounters the arc-shaped surface of the cone 55 and the guide of the spiral belt 56, the spiraling airflow and the material placed on the tray 54 can generate a greater counter-movement, thereby producing a better hot air drying effect on materials with uneven surfaces or many gaps. At the same time, with the setting of the heat preservation chamber 57, the drying efficiency of the internal space of the cone 55 can be maintained for a long time, improving the use effect of the device and reducing energy consumption.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A dryer with a heat-insulating structure, comprising a body (1), a lid (2) detachably mounted on the top of the body (1), an air inlet pipe (3) fixedly mounted on the bottom inner wall of the body (1), and an exhaust valve (4) fixedly mounted on the top outer wall of the lid (2), characterized in that: The body (1) is equipped with a heat flow component (5); The heat flow component (5) includes a drive motor (51), which is fixedly installed on the bottom outer wall of the body (1). A pinion (52) is fixedly installed at the output end of the drive motor (51). An internal gear turntable (53) is rotatably installed on the bottom inner wall of the body (1). A support tray (54) is fixedly installed on the upper surface of the internal gear turntable (53). A cone (55) is fixedly installed on the bottom inner wall of the body (1). A spiral belt (56) is fixedly installed on the arc-shaped inner wall of the cone (55). A heat insulation cavity (57) is opened on the inner wall of the cone (55). A partition is provided inside the heat insulation cavity (57). A vent hole (58) is opened on the inner wall of the partition.

2. A dryer with a heat-insulating structure according to claim 1, characterized in that: The center of the internal gear turntable (53) has a circular hole with a diameter that matches the inner diameter of the air intake pipe (3), and the end of the air intake pipe (3) is rotatably connected to the surface of the internal gear turntable (53).

3. A dryer with a heat-insulating structure according to claim 1, characterized in that: The bottom surface of the internal gear turntable (53) is provided with a gear ring that meshes with the pinion (52) to achieve transmission.

4. A dryer with a heat-insulating structure according to claim 1, characterized in that: The bottom surface of the tray (54) is set in an arc shape with a low center and a high outer edge, and the interior of the tray (54) is provided with several breathable mesh holes.

5. A dryer with a heat-insulating structure according to claim 1, characterized in that: The spiral band (56) is spirally arranged on the inner surface of the cone (55), and the spiral direction of the spiral band (56) is opposite to the direction of rotation of the internal gear disc (53).

6. A dryer with a heat-insulating structure according to claim 1, characterized in that: A drainage component (6) is provided on the arc-shaped outer surface of the spiral belt (56). The drainage component (6) includes a curved belt (61). The curved belt (61) is fixedly installed on the lower surface of the spiral belt (56) away from the inner surface of the cone (55). An arc-shaped flow channel (62) is opened on the upper surface of the spiral belt (56). A drainage hole (63) is opened on the bottom inner wall of the body (1).

7. A dryer with a heat-insulating structure according to claim 6, characterized in that: The end section of the curved strip (61) is J-shaped, and the bottom end of the curved strip (61) faces the arc-shaped inner surface of the cone (55).