A rotary drying machine for reinforcing the outer wall of pipes
By designing an integrated rotary drying machine for enhanced coating of pipe outer walls, the complexity and unevenness of operation caused by separating pipe outer wall coating and drying were solved, achieving uniform coating and drying, and improving coating quality and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING BEITONG INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-03
Smart Images

Figure CN224443630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dryer technology, specifically to a rotary dryer with reinforced coating on the outer wall of a pipe. Background Technology
[0002] In industrial production and equipment manufacturing, many pipelines require external coating to enhance their corrosion resistance, wear resistance, and other properties. Traditional pipeline external coating operations typically separate the coating and drying processes, requiring different equipment. Transferring pipelines between different devices not only increases the complexity of the operation but also increases the risk of damage to the coated sections due to collisions during the transfer. Furthermore, if the pipeline does not rotate evenly during the coating process, uneven coating thickness will result, affecting coating quality and protective effect. Existing drying equipment may also suffer from uneven drying of pipeline external walls, with localized overheating or undercooling potentially causing coating cracking, peeling, and other defects. Therefore, a rotary drying integrated machine for enhanced pipeline external coating needs to be designed. Utility Model Content
[0003] The purpose of this invention is to provide a rotary drying machine for strengthening the outer wall coating of pipes, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a rotary drying integrated machine for strengthening the outer wall of pipes by spraying coating, comprising a drying chamber, a control chamber, a drying chamber door, a drying component, a rotating component, a hot air component, and an air outlet component. The control chamber is installed on the top of the drying chamber, and a control panel is nested on the front surface of the drying chamber. Heat dissipation fins are installed on the two side walls of the drying chamber. The drying chamber door is hinged to the front surface of the drying chamber. The hot air component and the air outlet component are installed inside the control chamber and are connected. The rotating component is installed on the inner side wall of the drying chamber, and the drying component is installed on the output end of the rotating component. A water outlet pipe is connected to the bottom of the drying component. Relevant parameters, such as drying temperature and time, are set via the control panel, which transmits control signals to the control chamber. The internal components, including the hot air assembly, activate to generate hot air. This hot air is guided into the drying chamber through a channel connecting to the air outlet assembly. Objects with reinforced coatings on their outer walls are placed on the drying assembly. The rotating assembly is activated, causing it to rotate and the objects on it to rotate as well. During rotation, the hot air from the air outlet assembly evenly coats the rotating objects, achieving thorough drying. As the hot air evaporates, moisture from the object's surface drips onto the bottom of the drying assembly and is discharged through the drain pipe, preventing moisture buildup from affecting the drying effect. Heat dissipation fins installed on both sides of the drying chamber dissipate excess heat generated during drying, maintaining a suitable internal operating temperature and ensuring stable operation.
[0005] Preferably, the drying assembly includes an outer drying cylinder and an inner drying cylinder inside the outer drying cylinder. Both the outer and inner drying cylinders are mounted on a rotating shaft, and the inner drying cylinder has evenly distributed heat dissipation holes. The design of the inner drying cylinder allows hot air to be more concentrated and blown onto the object's surface, improving drying efficiency. The heat dissipation holes ensure that the hot air is evenly distributed inside the inner drying cylinder and acts evenly on the object's surface, avoiding uneven drying. The dual design of the outer and inner drying cylinders increases the contact area of the hot air, further enhancing the drying effect. The rotating shaft drives the outer and inner drying cylinders to rotate synchronously, ensuring uniform heating of the object during the drying process and achieving comprehensive drying.
[0006] Preferably, the rotating assembly is provided with a rotating frame, on which a rotating motor is mounted, and a rotating shaft is mounted on the output end of the rotating motor. The end of the rotating shaft is connected to the drying assembly, enabling the drying assembly to rotate. The rotating motor drives the rotating shaft to rotate the drying assembly, which in turn rotates the object being dried, ensuring that all parts of the object are heated evenly, improving drying efficiency and uniformity. The rotating frame, as a support structure, securely mounts the rotating motor and rotating shaft, ensuring the stability and reliability of the entire rotating assembly.
[0007] Preferably, the hot air assembly is equipped with a hot air duct, and an annular heating ring is fitted onto the hot air duct. One end of the hot air duct is connected to the outer drying cylinder via an exhaust pipe, and the other end of the hot air duct is connected to the air outlet box. The design of the annular heating ring can evenly heat the air in the hot air duct, making the hot air temperature more stable and uniform. The exhaust pipe guides the heated hot air into the outer drying cylinder, providing a continuous and stable heat source for the drying process. The air outlet box, as the output end of the hot air, has a reasonable structural design to ensure that the hot air can be evenly distributed in the drying cylinder, further improving drying efficiency and uniformity.
[0008] Preferably, the air outlet assembly is equipped with an air outlet box, an air outlet frame is installed inside the air outlet box, an air outlet motor is mounted on the air outlet frame, and fan blades are installed on the output end of the air outlet motor. The drive of the air outlet motor enables the fan blades to rotate at high speed, thereby generating a strong airflow. The air outlet frame, as a support structure, stably mounts the air outlet motor and fan blades, ensuring the stability and reliability of the air outlet assembly. The fan blades are rationally designed, and their shape and angle have been carefully calculated to maximize the use of the power of the air outlet motor, generating a uniform and strong airflow, and blowing hot air evenly from the air outlet box, further improving drying efficiency and uniformity.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] During rotation, the hot air blown from the air outlet component evenly blows onto the surface of the rotating object, achieving comprehensive drying. During the drying process, the moisture on the object's surface evaporates due to the hot air, and this moisture drips onto the bottom of the drying component and is discharged from the equipment through the water outlet pipe, preventing moisture accumulation from affecting the drying effect. The heat dissipation base plates installed on both sides of the drying chamber can dissipate excess heat generated during the drying process, maintaining a suitable working temperature inside the equipment and ensuring stable operation.
[0011] The design of the annular heating ring can evenly heat the air in the hot air duct, making the hot air temperature more stable and uniform. The exhaust pipe guides the heated hot air into the outer drying cylinder, providing a continuous and stable heat source for the drying process. The air outlet box, as the output end of the hot air, has a reasonable structural design to ensure that the hot air can be evenly distributed in the drying cylinder, further improving drying efficiency and uniformity. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0014] Figure 3 This is a schematic diagram of the drying component of this utility model;
[0015] Figure 4 This is a schematic diagram of the hot air assembly of this utility model;
[0016] Figure 5 This is a schematic diagram of the air outlet component of this utility model;
[0017] In the diagram: 1. Drying oven; 2. Control chamber; 3. Drying chamber door; 4. Control panel; 5. Heat sink; 6. Drying assembly; 61. Outer drying cylinder; 62. Inner drying cylinder; 63. Heat dissipation hole; 7. Rotating assembly; 71. Rotating frame; 72. Rotating motor; 73. Rotating shaft; 8. Water outlet pipe; 9. Hot air assembly; 91. Hot air pipe; 92. Annular heating ring; 93. Exhaust pipe; 10. Air outlet assembly; 101. Air outlet box; 102. Air outlet frame; 103. Air outlet motor; 104. Fan blade. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-5This utility model provides an embodiment of a rotary drying integrated machine for strengthening the outer wall coating of pipes, including a drying chamber 1, a control chamber 2, a drying chamber door 3, a drying assembly 6, a rotating assembly 7, a hot air assembly 9, and an air outlet assembly 10. The control chamber 2 is installed on the top of the drying chamber 1, and a control panel 4 is nested on the front surface of the drying chamber 1. Heat dissipation base plates 5 are installed on the two side walls of the drying chamber 1. The drying chamber door 3 is installed on the front surface of the drying chamber 1 via hinges. The hot air assembly 9 and the air outlet assembly 10 are installed inside the control chamber 2, and the hot air assembly 9 and the air outlet assembly 10 are connected. The inner side wall of the drying chamber 1 is equipped with... The equipment is equipped with a rotating component 7, and a drying component 6 is installed on the output end of the rotating component 7. A water outlet pipe 8 is connected to the bottom of the drying component 6. Relevant parameters, such as drying temperature and time, are set via a control panel 4. The control panel 4 transmits control signals to the components in the control chamber 2, causing the hot air component 9 in the control chamber 2 to start working and generate hot air. The hot air is guided into the drying chamber 1 through a communication channel with the air outlet component 10. Simultaneously, an object with a reinforced coating on its outer wall is placed on the drying component 6. The rotating component 7 starts, causing the drying component 6 to rotate, thus rotating the object placed on it. During rotation, the hot air blown from the air outlet component 10 evenly blows onto the surface of the rotating object, achieving comprehensive drying. Due to the hot air, moisture on the object's surface evaporates during the drying process. This moisture drips onto the bottom of the drying component 6 and is discharged from the equipment through the water outlet pipe 8, preventing moisture accumulation from affecting the drying effect. Heat dissipation fins 5 installed on both sides of the drying chamber 1 dissipate excess heat generated during the drying process, maintaining a suitable internal operating temperature and ensuring stable operation of the equipment.
[0020] The drying assembly 6 is equipped with an outer drying cylinder 61, inside which is an inner drying cylinder 62. Both the outer and inner drying cylinders 61 are mounted on a rotating shaft 73. The inner drying cylinder 62 has evenly distributed heat dissipation holes 63. The design of the inner drying cylinder 62 allows hot air to be more concentrated on the object's surface, improving drying efficiency. The heat dissipation holes 63 ensure that the hot air is evenly distributed within the inner drying cylinder 62 and acts evenly on the object's surface, avoiding uneven drying. The dual design of the outer and inner drying cylinders 61 and 62 increases the contact area of the hot air, further enhancing the drying effect. The rotating shaft 73 drives the outer and inner drying cylinders 61 and 62 to rotate synchronously, ensuring even heating of the object during the drying process and achieving comprehensive drying. The rotating assembly 7 is equipped with a rotating frame 71, on which a rotating motor 72 is mounted. The rotating shaft 73 is mounted on the output end of the rotating motor 72. The end of the rotating shaft 73 is connected to the drying assembly 6, enabling the drying assembly 6 to rotate. The drive of the rotating motor 72 enables the rotating shaft 73 to drive the drying assembly 6 to rotate, thereby driving the object being dried to rotate, ensuring that all parts of the object are heated evenly, improving drying efficiency and uniformity. The rotating frame 71 serves as a support structure, stably mounting the rotating motor 72 and the rotating shaft 73, ensuring the stability and reliability of the entire rotating assembly 7.
[0021] The hot air assembly 9 is equipped with a hot air duct 91, and an annular heating ring 92 is fitted onto the hot air duct 91. One end of the hot air duct 91 is connected to the outer drying cylinder 61 through an exhaust pipe 93, and the other end of the hot air duct 91 is connected to the air outlet box 101. The design of the annular heating ring 92 can evenly heat the air in the hot air duct 91, making the hot air temperature more stable and uniform. The exhaust pipe 93 guides the heated hot air into the outer drying cylinder 61, providing a continuous and stable heat source for the drying process. The air outlet box 101 serves as the output end of the hot air, and its reasonable structural design ensures that the hot air can be evenly distributed in the drying cylinder, further improving the drying efficiency and uniformity. The air outlet assembly 10 is equipped with an air outlet box 101, and an air outlet frame 102 is installed inside the air outlet box 101. An air outlet motor 103 is installed on the air outlet frame 102, and a fan blade 104 is installed on the output end of the air outlet motor 103. The drive of the exhaust motor 103 enables the fan blades 104 to rotate at high speed, thereby generating a strong airflow. The exhaust frame 102 serves as a support structure, securely mounting the exhaust motor 103 and the fan blades 104, ensuring the stability and reliability of the exhaust assembly 10. The fan blades 104 are rationally designed, with their shape and angle carefully calculated to maximize the use of the power of the exhaust motor 103, generating a uniform and strong airflow that blows hot air evenly out of the exhaust box 101, further improving drying efficiency and uniformity.
[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A pipeline outer wall reinforced spraying rotary drying integrated machine, comprising a drying box (1), a control bin (2), a drying bin door (3), a drying assembly (6), a rotating assembly (7), a hot air assembly (9) and an air outlet assembly (10), characterized in that: The top of the drying chamber (1) is equipped with a control chamber (2), the front surface of the drying chamber (1) is nested with a control panel (4), the two side walls of the drying chamber (1) are equipped with heat dissipation base plates (5), the front surface of the drying chamber (1) is equipped with a drying chamber door (3) via a hinge, the inside of the control chamber (2) is equipped with a hot air assembly (9) and an air outlet assembly (10), and the hot air assembly (9) and the air outlet assembly (10) are connected, the inner side wall of the drying chamber (1) is equipped with a rotating assembly (7), the output end of the rotating assembly (7) is equipped with a drying assembly (6), and the bottom of the drying assembly (6) is connected to a water outlet pipe (8).
2. The integrated machine for the rotation drying of the pipe outer wall strengthening spray according to claim 1, characterized in that: The drying assembly (6) is provided with an outer drying cylinder (61), and an inner drying cylinder (62) is provided inside the outer drying cylinder (61). The outer drying cylinder (61) and the inner drying cylinder (62) are mounted on a rotating shaft (73). Heat dissipation holes (63) are evenly provided on the inner drying cylinder (62).
3. The integrated pipe exterior wall strengthening and spraying rotary drying machine according to claim 1, characterized in that: The rotating assembly (7) is provided with a rotating frame (71), a rotating motor (72) is mounted on the rotating frame (71), and a rotating shaft (73) is mounted on the output end of the rotating motor (72).
4. The integrated pipe exterior wall strengthening and spraying rotary drying machine according to claim 1, characterized in that: The hot air assembly (9) is provided with a hot air duct (91), and an annular heating ring (92) is sleeved on the hot air duct (91). One end of the hot air duct (91) is connected to the outer drying cylinder (61) through the exhaust pipe (93), and the other end of the hot air duct (91) is connected to the air outlet box (101).
5. The integrated pipe exterior wall strengthening and spraying rotary drying machine according to claim 1, characterized in that: The air outlet assembly (10) is provided with an air outlet box (101), an air outlet frame (102) is installed inside the air outlet box (101), an air outlet motor (103) is installed on the air outlet frame (102), and a fan blade (104) is installed on the output end of the air outlet motor (103).