A horizontal drying production line with thermal energy circulation
By introducing a circulating fan and heat exchange box into the horizontal drying production line, the heat of humid air is recovered and fresh air is preheated, solving the problem of heat waste in humid air and achieving energy saving and product quality improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN NANAN JIASITE TECHNOLOGY BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-02
AI Technical Summary
Existing horizontal drying production lines have difficulty recovering the heat from the humid air discharged during the drying process, which causes the hot air generator to consume more energy to heat the air, resulting in energy waste.
Design a horizontal drying production line with thermal energy circulation. It uses a circulating fan and heat exchange box to recover heat from humid air, exchanges heat with fresh air through a special-shaped coil to preheat the fresh air, and purifies the air through a filter box to reduce the energy consumption of the hot air generator.
It achieves efficient preheating of fresh air, reduces the energy consumption of the hot air generator, improves the quality of dried products and the versatility of the equipment, and avoids energy waste and material contamination.
Smart Images

Figure CN224316704U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying equipment technology, specifically a horizontal drying production line with heat energy circulation. Background Technology
[0002] A horizontal drying production line is an industrial drying equipment that is horizontal in shape. It features rapid heating and uniform product heating. It can be used in conjunction with a workshop production line to continuously dry products. The baking temperature, conveying speed and time can be adjusted according to production needs, which greatly improves production efficiency.
[0003] In existing horizontal drying lines, the heat contained in the humid air discharged during the drying process is directly lost and cannot be recovered for preheating fresh air, resulting in the hot air generator needing to consume more energy to heat the air.
[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing horizontal drying production line with thermal energy circulation. Utility Model Content
[0005] The purpose of this invention is to provide a horizontal drying production line with thermal energy circulation to solve the problem mentioned in the background art that when drying materials, the heat contained in the humid air discharged during the drying process is directly lost and it is difficult to recover it for preheating fresh air, resulting in the hot air generator needing to consume more energy to heat the air.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a horizontal drying production line with thermal energy circulation, comprising a horizontal drying cylinder, a feed inlet connected to one side of the top of the horizontal drying cylinder, a discharge outlet connected to one side of the bottom of the horizontal drying cylinder, and a drive motor installed on one side of the horizontal drying cylinder; annular air ducts are installed on the outer walls at both ends of the horizontal drying cylinder, and a hot air generator and a heat exchange box are respectively installed on the top of the horizontal drying cylinder via a bracket; the heat exchange box is provided with a recovery mechanism for recovering and circulating the heat inside the horizontal drying cylinder.
[0007] Furthermore, the recycling mechanism includes a circulating fan, which is mounted on the top of the horizontal drying cylinder via a support frame. The exhaust end of the circulating fan is connected to a heat exchange box, and the heat exchange box is equipped with a shaped coil. One end of the shaped coil is connected to a hot air generator, and the bottom of the hot air generator is connected to an exhaust pipe, which is connected to two annular air ducts.
[0008] Furthermore, a recovery pipe is installed at one end of the heat exchange box, the bottom end of the recovery pipe is connected to the inside of the horizontal drying cylinder, a fan is installed on one side of the top of the heat exchange box, and a filter box is installed on the top of the heat exchange box.
[0009] Furthermore, a rotating shaft is installed at the output end of the drive motor, and four sets of spiral blades are installed on the outer wall of the rotating shaft. Air outlets are opened around the inner wall of the horizontal drying cylinder.
[0010] Furthermore, the horizontal drying drum is equipped with an adjustment mechanism for adjusting the air volume at the air outlet. The adjustment mechanism includes four adjustment plates, which are rotatably connected to the inside of the horizontal drying drum via a rotating shaft. A first connecting rod is fixedly connected to one side of the adjustment plate via the rotating shaft, and a second connecting rod is rotatably connected to one end of the first connecting rod. Two support legs are provided at the bottom of the horizontal drying drum, and two fixed plates are installed between the two support legs. Electric telescopic rods are installed at both ends of the top of the fixed plates, and the output end of the electric telescopic rod is fixedly connected to the second connecting rod.
[0011] Furthermore, the filter box is equipped with a filter drawer inside, the side wall of the filter drawer is fitted with a magnetic block, and the inner wall of the filter box is fitted with an iron block at a corresponding position.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This horizontal drying production line with thermal energy circulation draws fresh air from outside the horizontal drying drum into a special-shaped coil through a circulating fan. The air exchanges heat with the humid air inside the heat exchange box, preheating the air entering the hot air generator. This reduces the energy required for the hot air generator to heat the air, thus lowering energy consumption. The fan draws the humid air into the heat exchange box, where it is then filtered and purified, ensuring a clean drying environment and preventing dust and impurities from contaminating the materials, thereby improving the quality of the dried products.
[0014] Furthermore, by adjusting the rotation of the regulating plate, the direction of hot air flow and the speed of material movement can be changed, thereby achieving precise control over the drying speed and effect. When there is a small amount of material to be dried or there are special drying requirements, some regulating plates can be closed to reduce the discharge of hot air, avoid energy waste and over-drying of materials, meet the drying needs of various materials, and improve the versatility and practicality of the equipment.
[0015] Furthermore, the drive motor drives the rotating shaft and spiral blades to rotate, pushing the material forward inside the horizontal drying drum. This ensures sufficient time and space for the material to come into full contact with the hot air. During the movement, the material undergoes sufficient heat exchange with the hot air, achieving efficient drying. The spiral blades enable the material to tumble continuously inside the drum, increasing the contact area between the material and the hot air and improving drying efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0017] Figure 2This is a partial cross-sectional three-dimensional structural diagram of the present invention.
[0018] Figure 3 This is a partial three-dimensional structural diagram of the adjustment mechanism of this utility model.
[0019] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the annular air duct of this utility model.
[0020] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the filter box of this utility model.
[0021] Figure 6 This utility model Figure 5 A magnified three-dimensional structural diagram of A in the middle.
[0022] In the diagram: 1. Horizontal drying drum; 2. Feed inlet; 3. Discharge outlet; 4. Drive motor; 6. Annular air duct; 7. Rotating shaft; 8. Spiral blades; 9. Hot air generator; 10. Heat exchange box; 11. Circulating fan; 12. Irregularly shaped coil; 13. Discharge pipe; 14. Adjusting plate; 15. First connecting rod; 16. Second connecting rod; 17. Electric telescopic rod; 18. Fixing plate; 19. Recovery pipe; 20. Fan; 21. Filter box; 22. Filter drawer; 23. Magnetic block. Detailed Implementation
[0023] 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 protection scope of the present utility model.
[0024] Example 1: Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6This utility model provides the following technical solution: a horizontal drying production line with heat energy circulation, including a horizontal drying cylinder 1, a feed inlet 2 connected to one side of the top of the horizontal drying cylinder 1, a discharge outlet 3 connected to one side of the bottom of the horizontal drying cylinder 1, and a drive motor 4 installed on one side of the horizontal drying cylinder 1; annular air ducts 6 are installed on the outer walls of both ends of the horizontal drying cylinder 1, and a hot air generator 9 and a heat exchange box 10 are respectively installed on the top of the horizontal drying cylinder 1 via a bracket; the heat exchange box 10 is provided with a recovery mechanism for recovering and circulating the heat inside the horizontal drying cylinder 1; the recovery mechanism includes a circulating fan 11, which is installed on the top of the horizontal drying cylinder 1 via a support frame. The exhaust end of the circulating fan 11 is connected to the heat exchange box 10. The heat exchange box 10 is equipped with a special-shaped coil 12. One end of the special-shaped coil 12 is connected to the hot air generator 9. The bottom of the hot air generator 9 is connected to the exhaust pipe 13, which is connected to two annular air ducts 6. One end of the heat exchange box 10 is equipped with a recovery pipe 19. The bottom end of the recovery pipe 19 is connected to the interior of the horizontal drying cylinder 1. A fan 20 is installed on one side of the top of the heat exchange box 10. A filter box 21 is installed on the top of the heat exchange box 10. The output end of the drive motor 4 is equipped with a rotating shaft 7. Four sets of spiral blades 8 are installed on the outer wall of the rotating shaft 7. Air outlets are opened around the inner wall of the horizontal drying cylinder 1.
[0025] In use, first connect the feeding device to the inlet 2 and the collecting device to the outlet 3. Then, the material enters the interior of the horizontal drying cylinder 1 from the inlet 2 on one side of the top. Subsequently, the drive motor 4 is started. Figure 1 and Figure 2 As shown, after the drive motor 4 starts, its output end drives the rotating shaft 7 to rotate. The four sets of spiral blades 8 on the outer wall of the rotating shaft 7 rotate accordingly, pushing the material forward in the horizontal drying drum 1. During the movement, the material comes into full contact with the hot air, achieving drying. The dried material is discharged from the discharge port 3 on one side of the bottom of the horizontal drying drum 1. When drying items, as... Figure 2 and Figure 4As shown, by turning on the circulating fan 11, fresh air from outside the horizontal drying cylinder 1 is drawn into the interior of the shaped coil 12. Since one end of the shaped coil 12 inside the heat exchange box 10 is connected to the hot air generator 9, the air entering the shaped coil 12 is transported to the interior of the hot air generator 9. The hot air generator 9 heats the air, and the heated air is transported through the exhaust pipe 13 to the annular air ducts 6 on the outer walls of both ends of the horizontal drying cylinder 1. Then, it enters the cylinder from the air outlets around the inner wall of the horizontal drying cylinder 1 to dry the material. During the drying process, the hot air comes into contact with the material, thereby absorbing the moisture from the material. This causes the air to become humid and hot. When fresh air is inside the shaped coil 12, the fan 20, located on one side of the top of the heat exchange box 10, is activated. The fan 20 circulates the air, drawing the humid and hot air inside the drying cylinder through the recovery pipe 19 into the heat exchange box 10. At this time, the outer wall of the shaped coil 12 comes into contact with the humid and hot air inside the heat exchange box 10, achieving heat exchange and preheating the air entering the hot air generator 9. When the fan 20 draws the humid and hot air into the heat exchange box 10, the air, after heat exchange, is filtered through the top filter box 21 for further purification, ensuring a clean drying environment. Figure 5 and Figure 6 As shown, since a magnetic block 23 is installed on the side of the filter drawer 22 inside the filter box 21 near the filter box 21, and an iron block is set on the filter box 21, the magnetic attraction between the magnetic block 23 and the iron block allows the filter drawer 22 to be stably installed inside the filter box 21. Therefore, when it is necessary to clean or replace the filter drawer 22, the magnetic force between the magnetic block 23 and the iron block can be overcome to remove the filter drawer 22 from the filter box 21.
[0026] Example 2: Please refer to Figure 3 , Figure 5 and Figure 6 Based on Embodiment 1, an adjustment mechanism is also disclosed, the specific structure of which is as follows:
[0027] The adjustment mechanism includes four adjustment plates 14, which are rotatably connected to the inside of the horizontal drying cylinder 1 via a rotating shaft. A first connecting rod 15 is fixedly connected to one side of the adjustment plate 14 via a rotating shaft, and a second connecting rod 16 is rotatably connected to one end of the first connecting rod 15. Two support legs are provided at the bottom of the horizontal drying cylinder 1, and two fixed plates 18 are installed between the two support legs. Electric telescopic rods 17 are installed at both ends of the top of the fixed plates 18, and the output end of the electric telescopic rods 17 is fixedly connected to the second connecting rod 16. A filter drawer 22 is provided inside the filter box 21, and magnetic blocks 23 are installed on the side wall of the filter drawer 22. Iron blocks are provided at corresponding positions on the inner wall of the filter box 21.
[0028] When using the drying device, such as Figure 3As shown, by activating the electric telescopic rods 17 at both ends of the top of the fixed plate 18, the output end of the electric telescopic rod 17 extends and retracts. Since the output end of the electric telescopic rod 17 is fixedly connected to the second connecting rod 16, the extension and retraction of the electric telescopic rod 17 will drive the second connecting rod 16 to move, as shown. Figure 3 As shown, since one end of the second link 16 is rotatably connected to the first link 15, when the second link 16 moves, the movement of the second link 16 will drive the first link 15 to move. The other end of the first link 15 is fixedly connected to the adjusting plate 14 via a rotating shaft. Therefore, the movement of the first link 15 drives the adjusting plate 14 to rotate around the rotating shaft. Figure 3 As shown, by rotating the adjusting plate 14, the air duct and material flow path inside the horizontal drying cylinder 1 can be changed, thereby adjusting the drying speed and effect to adapt to the drying requirements of different materials. When there are few materials to be dried or other drying requirements, one or more adjusting plates 14 can be closed to reduce the discharge of hot air, avoid energy waste, and also avoid the material from being over-dried due to excessively high temperature inside the drying cylinder, which would result in the material not meeting production requirements after drying.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A horizontal drying production line with thermal energy circulation, comprising a horizontal drying drum (1), characterized in that: The horizontal drying cylinder (1) has a feed inlet (2) connected to one side of the top, a discharge outlet (3) connected to one side of the bottom, and a drive motor (4) installed on one side of the horizontal drying cylinder (1). The outer walls at both ends of the horizontal drying cylinder (1) are equipped with annular air ducts (6), and the top of the horizontal drying cylinder (1) is equipped with a hot air generator (9) and a heat exchange box (10) respectively through a bracket. The heat exchange box (10) is equipped with a recovery mechanism for recovering and circulating the heat inside the horizontal drying cylinder (1).
2. The horizontal drying production line with thermal energy circulation according to claim 1, characterized in that: The recycling mechanism includes a circulating fan (11), which is mounted on the top of the horizontal drying cylinder (1) via a support frame. The exhaust end of the circulating fan (11) is connected to a heat exchange box (10). The heat exchange box (10) is equipped with a shaped coil (12). One end of the shaped coil (12) is connected to a hot air generator (9). The bottom of the hot air generator (9) is connected to an exhaust pipe (13), which is connected to two annular air ducts (6).
3. The horizontal drying production line with thermal energy circulation according to claim 1, characterized in that: A recovery pipe (19) is installed at one end of the heat exchange box (10), and the bottom end of the recovery pipe (19) is connected to the interior of the horizontal drying cylinder (1). A fan (20) is installed on one side of the top of the heat exchange box (10), and a filter box (21) is installed on the top of the heat exchange box (10).
4. The horizontal drying production line with thermal energy circulation according to claim 1, characterized in that: The output end of the drive motor (4) is equipped with a rotating shaft (7), and four sets of spiral blades (8) are installed on the outer wall of the rotating shaft (7). Air outlets are opened around the inner wall of the horizontal drying cylinder (1).
5. A horizontal drying production line with thermal energy circulation according to claim 4, characterized in that: The horizontal drying cylinder (1) is provided with an adjustment mechanism for adjusting the air volume of the air outlet. The adjustment mechanism includes four adjustment plates (14). The adjustment plates (14) are rotatably connected to the inside of the horizontal drying cylinder (1) through a rotating shaft. A first connecting rod (15) is fixedly connected to one side of the adjustment plate (14) through a rotating shaft. A second connecting rod (16) is rotatably connected to one end of the first connecting rod (15). Two support legs are provided at the bottom of the horizontal drying cylinder (1). Two fixing plates (18) are installed between the two support legs. Electric telescopic rods (17) are installed at both ends of the top of the fixing plates (18). The output end of the electric telescopic rods (17) is fixedly connected to the second connecting rod (16).
6. A horizontal drying production line with thermal energy circulation according to claim 3, characterized in that: The filter box (21) is provided with a filter drawer (22) inside. A magnetic block (23) is installed on the side wall of the filter drawer (22), and an iron block is provided at the corresponding position on the inner wall of the filter box (21).