Drying device for fireproof coating spraying

Abstract

The drying device comprises a machine body, an infrared heater is arranged in the middle of an inner cavity of the machine body, the outer side of the infrared heater is sleeved with a rotating support, and the rotating support is rotationally connected with the machine body; an air duct is arranged in the middle of the infrared heater and communicated with an inner cavity of the machine body, a fan is arranged at the top end of the machine body, and the air outlet end of the fan is connected with an opening in the top end of the air duct. A drainage connector is arranged at the bottom of the back face of the machine body and communicated with an inner cavity of the machine body, and the draught fan is connected with the drainage connector through a connecting pipe. The infrared heater is mounted in the machine body and arranged in the middle of the machine body, so that the infrared heater can quickly heat the inner cavity of the machine body, the air duct is arranged in the middle of the infrared heater, the fan draws airflow to enter the air duct, and the air holes are formed in the positions, aligned with the heating pipes, of the air duct.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a drying device for fireproof coating spraying. Background Technology

[0002] Fire-retardant coatings are special coatings widely used in construction, shipbuilding, petrochemicals, and other fields. Their main function is to form a heat-insulating layer in high-temperature environments, slowing the spread of fire and protecting the substrate from fire damage. The performance of fire-retardant coatings is closely related to the quality of their application, and the drying process after spraying is one of the key steps to ensure the coating's performance.

[0003] In the prior art, utility model patent with publication number CN218155237U discloses a fireproof coating dryer, including a device insulation shell, a drying box fixedly connected to the inner wall of the device insulation shell, heating plates installed on both sides between the device insulation shell and the drying box, multiple drying iron plates installed between two heating plates, a material dispersing mechanism installed on the top of the drying box, a feed inlet fixedly connected to one side of the top of the drying box, a storage hopper fixedly connected to the bottom of the drying box, a support column fixedly connected to each corner of the bottom of the drying box, and an exhaust mechanism fixedly connected to the top of the drying box on the side away from the feed inlet.

[0004] The dryer provided by the aforementioned patent uses an exhaust mechanism and a fan assembly to expel the water vapor evaporated inside the drying chamber through the exhaust pipe, reducing the moisture around the output coating and thus allowing the coating to dry more thoroughly. However, this type of dryer lacks a hot air circulation function, preventing the hot air inside the dryer from flowing freely, resulting in poor uniformity of hot air drying of the fire-retardant coating. Utility Model Content

[0005] The purpose of this utility model is to provide a drying device for fire-retardant coating spraying, which aims to improve the problem that existing dryers for fire-retardant coatings do not have a hot air circulation function, making it impossible to make the hot air inside the dryer circulate, resulting in poor uniformity of hot air drying of fire-retardant coatings.

[0006] This utility model is implemented as follows:

[0007] A drying device for fire-retardant coating spraying includes a body, an infrared heater in the middle of the inner cavity of the body, a rotating bracket sleeved on the outside of the infrared heater, and the rotating bracket rotatably connected to the body; an air duct in the middle of the infrared heater, the air duct communicating with the inner cavity of the body; a fan at the top of the body, the air outlet of the fan being connected to the top opening of the air duct; and a drain connector at the bottom of the back of the body, the drain connector communicating with the inner cavity of the body, and the fan and the drain connector being connected by a connecting pipe.

[0008] Preferably, the front bottom of the machine body is provided with a control panel, and the bottom corner of the machine body is provided with support feet; a door is rotatably connected to the opening on the front of the machine body, and a handle is provided on the side of the door not connected to the machine body, and an observation window is provided in the middle of the door; an insertion port is provided on the back of the machine body near the bottom, and an installation port is provided on the top of the machine body, with a limiting groove on the edge of the installation port; a power connector is provided on the bottom inner side of the machine body aligned with the installation port, and a collar is provided on the outer side of the power connector.

[0009] Preferably, the infrared heater has multiple partitions on its side, heating tubes are provided between adjacent partitions, the top opening edge of the air duct has a transition groove, the top of the air duct has a mounting ring with multiple mounting holes, and the mounting ring is embedded in the limiting groove; the bottom of the infrared heater has a power connection slot.

[0010] Preferably, the rotating bracket has bearings at its top and bottom inner sides, and the bearings are interference-fitted with the collar; and the rotating bracket has multiple connecting rods on its side, and the connecting rods have limiting grooves on their side.

[0011] Preferably, the fan is provided with fixed feet symmetrically on both sides of the ground, and the fixed feet are provided with multiple fixing holes; one end of the fan is provided with an air intake pipe, the bottom end of the air intake pipe is provided with an adapter cap, the other end of the fan is provided with an exhaust pipe, the end of the exhaust pipe is rotatably connected with an adapter, the bottom end of the adapter is provided with an adapter pipe, and the adapter pipe is threadedly connected to the adapter groove.

[0012] Preferably, the drainage connector has a pipe connector on the back and an installation cap at the top of the pipe connector; the drainage connector has countersunk holes symmetrically arranged on both sides, and a plug is provided on the side of the drainage connector facing the machine body, and the plug is inserted into the socket.

[0013] Preferably, the device also includes multiple trays, which are sequentially mounted on the rotating bracket from top to bottom.

[0014] Preferably, the tray has a retaining ring on its edge, symmetrical grips on both sides of the retaining ring, and a sleeve in the middle of the tray. The inner side of the sleeve has a plurality of locking rods evenly distributed, and the outer side of the sleeve has a set screw for fixing the position of the tray.

[0015] Preferably, it also includes a dehumidifying filter element, a flow box is provided in the middle of the connecting pipe, a disassembly port is provided on the side of the flow box, and support edges are symmetrically provided on both sides inside the disassembly port. The dehumidifying filter element is inserted into the flow box from the disassembly port.

[0016] Preferably, the dehumidifying filter element has a groove at one end facing outwards, and the dehumidifying filter element contains a dehumidifying agent.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model installs an infrared heater inside the machine body, located in the middle of the machine body. This allows the infrared heater to quickly heat the inner cavity of the machine body. An air duct is provided in the middle of the infrared heater, and a fan draws air into the air duct. The air duct is equipped with vents aligned with the heating tube. The airflow blowing out of the vents allows the heat generated by the infrared heater to be quickly diffused, making the heat inside the machine body more uniform. The fan intake is connected to the bottom of the inner cavity of the machine body through an air intake connector, which allows the hot air inside the machine body to circulate and become more uniform, facilitating efficient and rapid drying of fireproof coatings.

[0019] 2. This utility model has multiple trays on a rotating support, which can support the objects that need to be dried, making it convenient to quickly dry the fire-retardant coating on the surface of the objects.

[0020] 3. This utility model incorporates a dehumidifying filter element, which allows circulating hot air to be used for drying, enabling the hot air to dry the fire-retardant coating efficiently and quickly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model from a front-end oblique downward view;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model from a rear-end oblique downward view;

[0023] Figure 3 This is a schematic diagram of the structure of the body of this utility model;

[0024] Figure 4 This is a schematic diagram of the infrared heater of this utility model from a front-end oblique downward view.

[0025] Figure 5 This is a schematic diagram of the infrared heater of this utility model from a front-end oblique elevation view.

[0026] Figure 6 This is a schematic diagram of the structure of the rotating bracket of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the fan of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the tray of this utility model;

[0029] Figure 9 This is a schematic diagram of the drainage connector of this utility model;

[0030] Figure 10This is a schematic diagram of the connecting pipe of this utility model;

[0031] Figure 11 This is a schematic diagram of the structure of the dehumidification filter element of this utility model.

[0032] In the diagram: 1. Body; 11. Control panel; 12. Support leg; 13. Door; 14. Handle; 15. Observation window; 16. Mounting port; 17. Limiting groove; 18. Socket; 19. Power plug; 191. Collar; 2. Infrared heater; 21. Partition plate; 22. Heating element; 23. Air duct; 24. Adapter groove; 25. Mounting ring; 26. Mounting hole; 27. Power socket; 3. Rotating bracket; 31. Bearing; 32. Connecting rod; 33. Limiting groove; 4. 41. Fan; 42. Fixing foot; 43. Fixing hole; 44. Intake pipe; 45. Adapter cap; 46. Exhaust pipe; 47. Adapter pipe; 5. Tray; 51. Retaining ring; 52. Grip; 53. Sleeve; 54. Clamping rod; 6. Drainage connector; 61. Pipe connector; 62. Mounting cap; 63. Countersunk hole; 64. Plug connector; 7. Connecting pipe; 71. Drainage box; 72. Disassembly port; 73. Support edge; 8. Dehumidifying filter element; 81. Groove; 82. Dehumidifier. Detailed Implementation

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0035] Example 1

[0036] like Figure 1 , Figure 2 and Figure 4As shown, a drying device for fire-retardant coating spraying includes a body 1. An infrared heater 2 is located in the center of the inner cavity of the body 1. The body 1, in conjunction with the infrared heater 2, facilitates rapid heating of its internal interior. A rotating bracket 3 is fitted around the outer side of the infrared heater 2 and is rotatably connected to the body 1; the rotating bracket 3 facilitates the rotation of the object to be dried. An air duct 23 is located in the center of the infrared heater 2 and communicates with the inner cavity of the body 1. This structure allows the heat generated by the infrared heater 2 to be rapidly diffused through the airflow blowing out from inside the air duct 23. A fan 4 is located at the top of the body 1, and the outlet of the fan 4 is connected to the opening at the top of the air duct 23; this structure facilitates the fan 4 to drive the airflow into the air duct 23 and diffuse it outwards from the inside of the air duct 23. The bottom back of the body 1 is provided with a drain connector 6, which is connected to the inner cavity of the body 1. The fan 4 is connected to the drain connector 6 through a connecting pipe 7. This structure facilitates the fan 4 to draw air from the bottom inside the body 1 and inject it into the air duct 23 of the infrared heater 2 from the top of the body 1. The air then diffuses through the air duct 23 to the body 1, allowing the hot air inside the body 1 to circulate.

[0037] like Figure 3 As shown, a control panel 11 is located at the bottom front of the main body 1, facilitating the control of the main body 1's operation. Support feet 12 are located at the corners of the bottom surface of the main body 1, ensuring stable placement of the main body 1. A door 13 is rotatably connected to the opening on the front of the main body 1. A handle 14 is located on the side of the door 13 not connected to the main body 1, and an observation window 15 is located in the center of the door 13. The door 13 facilitates opening and closing of the main body 1, the handle 14 facilitates gripping the main body 1 for easy assembly, disassembly, and use, and the observation window 15 facilitates observation of the internal condition of the main body 1. An insertion port 18 is located near the bottom on the back of the main body 1, facilitating the installation of the drain connector 6. An installation port 16 is located at the top of the main body 1, facilitating the installation of the infrared heater 2. A limiting groove 17 is located at the edge of the installation port 16, facilitating the limiting of the infrared heater 2. A power connector 19 is provided on the bottom inner side of the body 1, aligned with the mounting port 16. The power connector 19 facilitates electrical connection with the body 1. A collar 191 is provided on the outer side of the power connector 19, which facilitates fitting onto the bottom of the infrared heater 2.

[0038] like Figure 4 and Figure 5As shown, the infrared heater 2 has multiple partitions 21 on its side, with heating tubes 22 positioned between adjacent partitions 21. The partitions 21 facilitate the separation of the heating tubes 22. An adapter groove 24 is provided at the top edge of the air duct 23's opening, allowing for easy connection between the infrared heater 2 and the fan 4. A mounting ring 25 is located at the top of the air duct 23, with multiple mounting holes 26. The mounting ring 25 and mounting holes 26 facilitate the fixing of the infrared heater 2 to the fan 4 using bolts. The mounting ring 25 is embedded inside the limiting groove 17. An electrical connection slot 27 is located at the bottom of the infrared heater 2, facilitating power supply to the infrared heater 2 and its operation.

[0039] like Figure 6 As shown, bearings 31 are provided at the top and bottom of the inner side of the rotating bracket 3, and the bearings 31 are interference-fitted with the collar 191; this structure facilitates the stable rotation of the rotating bracket 3. Multiple connecting rods 32 are provided on the side of the rotating bracket 3, which also facilitates the stability of the rotating bracket 3. Limiting grooves 33 are provided on the side of the connecting rods 32, which facilitate the installation of other components.

[0040] like Figure 7 As shown, the fan 4 has symmetrically arranged fixing feet 41 on both sides of the ground, and the fixing feet 41 have multiple fixing holes 42; the fixing feet 41 and fixing holes 42 are designed to facilitate fixing the position of the fan 4 with bolts. One end of the fan 4 has an air intake pipe 43, and the bottom end of the air intake pipe 43 has an adapter cap 44. The fit between the air intake pipe 43 and the adapter cap 44 is designed to facilitate connecting the fan 4 to the connecting pipe 7. The other end of the fan 4 has an exhaust pipe 45, and the end of the exhaust pipe 45 is rotatably connected to an adapter 46. The bottom end of the adapter 46 has an adapter pipe 47, which is threadedly connected to the adapter groove 24; the fit between the exhaust pipe 45 and the adapter 46 is designed to facilitate connecting the fan 4 to the infrared heater 2.

[0041] like Figure 9 As shown, the drainage connector 6 has a pipe connector 61 on its back, and a mounting cap 62 on its top. The fit between the pipe connector 61 and the mounting cap 62 facilitates the connection of the drainage connector 6 to the connecting pipe 7. The drainage connector 6 has symmetrical countersunk holes 63 on both sides, which facilitate the passage of bolts for fixing the drainage connector 6. The side of the drainage connector 6 facing the body 1 has a plug connector 64, which inserts into the socket 18. This structure facilitates the connection of the drainage connector 6 to the body 1.

[0042] Example 2

[0043] like Figure 1 , Figure 2 and Figure 4As shown, a drying device for fire-retardant coating spraying includes a body 1. An infrared heater 2 is located in the center of the inner cavity of the body 1. The body 1, in conjunction with the infrared heater 2, facilitates rapid heating of its internal interior. A rotating bracket 3 is fitted around the outer side of the infrared heater 2 and is rotatably connected to the body 1; the rotating bracket 3 facilitates the rotation of the object to be dried. An air duct 23 is located in the center of the infrared heater 2 and communicates with the inner cavity of the body 1. This structure allows the heat generated by the infrared heater 2 to be rapidly diffused through the airflow blowing out from inside the air duct 23. A fan 4 is located at the top of the body 1, and the outlet of the fan 4 is connected to the opening at the top of the air duct 23; this structure facilitates the fan 4 to drive the airflow into the air duct 23 and diffuse it outwards from the inside of the air duct 23. The bottom back of the body 1 is provided with a drain connector 6, which is connected to the inner cavity of the body 1. The fan 4 is connected to the drain connector 6 through a connecting pipe 7. This structure facilitates the fan 4 to draw air from the bottom inside the body 1 and inject it into the air duct 23 of the infrared heater 2 from the top of the body 1. The air then diffuses through the air duct 23 to the body 1, allowing the hot air inside the body 1 to circulate.

[0044] like Figure 3 As shown, a control panel 11 is located at the bottom front of the main body 1, facilitating the control of the main body 1's operation. Support feet 12 are located at the corners of the bottom surface of the main body 1, ensuring stable placement of the main body 1. A door 13 is rotatably connected to the opening on the front of the main body 1. A handle 14 is located on the side of the door 13 not connected to the main body 1, and an observation window 15 is located in the center of the door 13. The door 13 facilitates opening and closing of the main body 1, the handle 14 facilitates gripping the main body 1 for easy assembly, disassembly, and use, and the observation window 15 facilitates observation of the internal condition of the main body 1. An insertion port 18 is located near the bottom on the back of the main body 1, facilitating the installation of the drain connector 6. An installation port 16 is located at the top of the main body 1, facilitating the installation of the infrared heater 2. A limiting groove 17 is located at the edge of the installation port 16, facilitating the limiting of the infrared heater 2. A power connector 19 is provided on the bottom inner side of the body 1, aligned with the mounting port 16. The power connector 19 facilitates electrical connection with the body 1. A collar 191 is provided on the outer side of the power connector 19, which facilitates fitting onto the bottom of the infrared heater 2.

[0045] like Figure 4 and Figure 5As shown, the infrared heater 2 has multiple partitions 21 on its side, with heating tubes 22 positioned between adjacent partitions 21. The partitions 21 facilitate the separation of the heating tubes 22. An adapter groove 24 is provided at the top edge of the air duct 23's opening, allowing for easy connection between the infrared heater 2 and the fan 4. A mounting ring 25 is located at the top of the air duct 23, with multiple mounting holes 26. The mounting ring 25 and mounting holes 26 facilitate the fixing of the infrared heater 2 to the fan 4 using bolts. The mounting ring 25 is embedded inside the limiting groove 17. An electrical connection slot 27 is located at the bottom of the infrared heater 2, facilitating power supply to the infrared heater 2 and its operation.

[0046] like Figure 6 As shown, bearings 31 are provided at the top and bottom of the inner side of the rotating bracket 3, and the bearings 31 are interference-fitted with the collar 191; this structure facilitates the stable rotation of the rotating bracket 3. Multiple connecting rods 32 are provided on the side of the rotating bracket 3, which also facilitates the stability of the rotating bracket 3. Limiting grooves 33 are provided on the side of the connecting rods 32, which facilitate the installation of other components.

[0047] like Figure 7 As shown, the fan 4 has symmetrically arranged fixing feet 41 on both sides of the ground, and the fixing feet 41 have multiple fixing holes 42; the fixing feet 41 and fixing holes 42 are designed to facilitate fixing the position of the fan 4 with bolts. One end of the fan 4 has an air intake pipe 43, and the bottom end of the air intake pipe 43 has an adapter cap 44. The fit between the air intake pipe 43 and the adapter cap 44 is designed to facilitate connecting the fan 4 to the connecting pipe 7. The other end of the fan 4 has an exhaust pipe 45, and the end of the exhaust pipe 45 is rotatably connected to an adapter 46. The bottom end of the adapter 46 has an adapter pipe 47, which is threadedly connected to the adapter groove 24; the fit between the exhaust pipe 45 and the adapter 46 is designed to facilitate connecting the fan 4 to the infrared heater 2.

[0048] like Figure 9 As shown, the drainage connector 6 has a pipe connector 61 on its back, and a mounting cap 62 on its top. The fit between the pipe connector 61 and the mounting cap 62 facilitates the connection of the drainage connector 6 to the connecting pipe 7. The drainage connector 6 has symmetrical countersunk holes 63 on both sides, which facilitate the passage of bolts for fixing the drainage connector 6. The side of the drainage connector 6 facing the body 1 has a plug connector 64, which inserts into the socket 18. This structure facilitates the connection of the drainage connector 6 to the body 1.

[0049] like Figure 1 As shown, it also includes trays 5, and multiple trays 5 are provided. Multiple trays 5 are arranged sequentially from top to bottom on the rotating bracket 3. The trays 5 are for supporting objects and for drying each object.

[0050] like Figure 8As shown, the tray 5 has a retaining ring 51 on its edge, and symmetrical grips 52 on both sides of the retaining ring 51. The cooperation between the retaining ring 51 and the grips 52 facilitates the assembly, disassembly, and use of the tray 5. A sleeve 53 is located in the middle of the tray 5, and multiple locking rods 54 are evenly distributed on the inner side of the sleeve 53. The cooperation between the sleeve 53 and the locking rods 54 facilitates the connection and positioning of the tray 5 with the rotating bracket 3. A set screw is provided on the outer side of the sleeve 53 to fix the position of the tray 5.

[0051] Example 3

[0052] like Figure 1 , Figure 2 and Figure 4 As shown, a drying device for fire-retardant coating spraying includes a body 1. An infrared heater 2 is located in the center of the inner cavity of the body 1. The body 1, in conjunction with the infrared heater 2, facilitates rapid heating of its internal interior. A rotating bracket 3 is fitted around the outer side of the infrared heater 2 and is rotatably connected to the body 1; the rotating bracket 3 facilitates the rotation of the object to be dried. An air duct 23 is located in the center of the infrared heater 2 and communicates with the inner cavity of the body 1. This structure allows the heat generated by the infrared heater 2 to be rapidly diffused through the airflow blowing out from inside the air duct 23. A fan 4 is located at the top of the body 1, and the outlet of the fan 4 is connected to the opening at the top of the air duct 23; this structure facilitates the fan 4 to drive the airflow into the air duct 23 and diffuse it outwards from the inside of the air duct 23. The bottom back of the body 1 is provided with a drain connector 6, which is connected to the inner cavity of the body 1. The fan 4 is connected to the drain connector 6 through a connecting pipe 7. This structure facilitates the fan 4 to draw air from the bottom inside the body 1 and inject it into the air duct 23 of the infrared heater 2 from the top of the body 1. The air then diffuses through the air duct 23 to the body 1, allowing the hot air inside the body 1 to circulate.

[0053] like Figure 3As shown, a control panel 11 is located at the bottom front of the main body 1, facilitating the control of the main body 1's operation. Support feet 12 are located at the corners of the bottom surface of the main body 1, ensuring stable placement of the main body 1. A door 13 is rotatably connected to the opening on the front of the main body 1. A handle 14 is located on the side of the door 13 not connected to the main body 1, and an observation window 15 is located in the center of the door 13. The door 13 facilitates opening and closing of the main body 1, the handle 14 facilitates gripping the main body 1 for easy assembly, disassembly, and use, and the observation window 15 facilitates observation of the internal condition of the main body 1. An insertion port 18 is located near the bottom on the back of the main body 1, facilitating the installation of the drain connector 6. An installation port 16 is located at the top of the main body 1, facilitating the installation of the infrared heater 2. A limiting groove 17 is located at the edge of the installation port 16, facilitating the limiting of the infrared heater 2. A power connector 19 is provided on the bottom inner side of the body 1, aligned with the mounting port 16. The power connector 19 facilitates electrical connection with the body 1. A collar 191 is provided on the outer side of the power connector 19, which facilitates fitting onto the bottom of the infrared heater 2.

[0054] like Figure 4 and Figure 5 As shown, the infrared heater 2 has multiple partitions 21 on its side, with heating tubes 22 positioned between adjacent partitions 21. The partitions 21 facilitate the separation of the heating tubes 22. An adapter groove 24 is provided at the top edge of the air duct 23's opening, allowing for easy connection between the infrared heater 2 and the fan 4. A mounting ring 25 is located at the top of the air duct 23, with multiple mounting holes 26. The mounting ring 25 and mounting holes 26 facilitate the fixing of the infrared heater 2 to the fan 4 using bolts. The mounting ring 25 is embedded inside the limiting groove 17. An electrical connection slot 27 is located at the bottom of the infrared heater 2, facilitating power supply to the infrared heater 2 and its operation.

[0055] like Figure 6 As shown, bearings 31 are provided at the top and bottom of the inner side of the rotating bracket 3, and the bearings 31 are interference-fitted with the collar 191; this structure facilitates the stable rotation of the rotating bracket 3. Multiple connecting rods 32 are provided on the side of the rotating bracket 3, which also facilitates the stability of the rotating bracket 3. Limiting grooves 33 are provided on the side of the connecting rods 32, which facilitate the installation of other components.

[0056] like Figure 7As shown, the fan 4 has symmetrically arranged fixing feet 41 on both sides of the ground, and the fixing feet 41 have multiple fixing holes 42; the fixing feet 41 and fixing holes 42 are designed to facilitate fixing the position of the fan 4 with bolts. One end of the fan 4 has an air intake pipe 43, and the bottom end of the air intake pipe 43 has an adapter cap 44. The fit between the air intake pipe 43 and the adapter cap 44 is designed to facilitate connecting the fan 4 to the connecting pipe 7. The other end of the fan 4 has an exhaust pipe 45, and the end of the exhaust pipe 45 is rotatably connected to an adapter 46. The bottom end of the adapter 46 has an adapter pipe 47, which is threadedly connected to the adapter groove 24; the fit between the exhaust pipe 45 and the adapter 46 is designed to facilitate connecting the fan 4 to the infrared heater 2.

[0057] like Figure 9 As shown, the drainage connector 6 has a pipe connector 61 on its back, and a mounting cap 62 on its top. The fit between the pipe connector 61 and the mounting cap 62 facilitates the connection of the drainage connector 6 to the connecting pipe 7. The drainage connector 6 has symmetrical countersunk holes 63 on both sides, which facilitate the passage of bolts for fixing the drainage connector 6. The side of the drainage connector 6 facing the body 1 has a plug connector 64, which inserts into the socket 18. This structure facilitates the connection of the drainage connector 6 to the body 1.

[0058] like Figure 1 As shown, it also includes trays 5, and multiple trays 5 are provided. Multiple trays 5 are arranged sequentially from top to bottom on the rotating bracket 3. The trays 5 are for supporting objects and for drying each object.

[0059] like Figure 8 As shown, the tray 5 has a retaining ring 51 on its edge, and symmetrical grips 52 on both sides of the retaining ring 51. The cooperation between the retaining ring 51 and the grips 52 facilitates the assembly, disassembly, and use of the tray 5. A sleeve 53 is located in the middle of the tray 5, and multiple locking rods 54 are evenly distributed on the inner side of the sleeve 53. The cooperation between the sleeve 53 and the locking rods 54 facilitates the connection and positioning of the tray 5 with the rotating bracket 3. A set screw is provided on the outer side of the sleeve 53 to fix the position of the tray 5.

[0060] like Figure 2 and Figure 10 As shown, it also includes a dehumidifying filter element 8. A flow box 71 is provided in the middle of the connecting pipe 7. A disassembly port 72 is provided on the side of the flow box 71. Supporting edges 73 are symmetrically provided on both sides inside the disassembly port 72. The dehumidifying filter element 8 is inserted into the flow box 71 through the disassembly port 72. This structure facilitates the installation of the dehumidifying filter element 8 inside the flow box 71, and makes it easy to disassemble and use the dehumidifying filter element 8.

[0061] like Figure 11As shown, the dehumidifying filter element 8 has a groove 81 at one end facing outwards. The groove 81 facilitates the pulling of the dehumidifying filter element 8, making it easy to disassemble, install, and use. Furthermore, the dehumidifying filter element 8 contains a desiccant 82, which facilitates the absorption of moisture from the airflow.

[0062] Working Principle: During use, adjust tray 5 to a suitable position according to requirements, and then place the items coated with fire-retardant paint on tray 5. Afterwards, close the door 13, and then start the infrared heater 2 and fan 4. The infrared heater 2 continuously generates heat, while the fan 4 drives airflow circulation inside the machine body 1. The airflow passes through the guide connector 6 and connecting pipe 7, and is then drawn into the air duct 23 of the infrared heater 2 by the fan 4. The airflow diffuses from the air duct 23 inside the machine body 1, which in turn diffuses the heat generated by the heating element 22, thus uniformizing the heat inside the machine body 1. This method efficiently and quickly uniformizes the heat inside the machine body 1, allowing the items to be dried inside the machine body 1 to be dried efficiently.

[0063] In summary, compared with the prior art, this application installs an infrared heater 2 inside the body 1, with the infrared heater 2 located in the middle of the body 1. This allows the infrared heater 2 to quickly heat the inner cavity of the body 1. The infrared heater 2 has an air duct 23 in the middle, and the fan 4 draws air into the air duct 23. The air duct 23 has a vent hole aligned with the heating tube 22. The airflow blowing out of the vent hole allows the heat generated by the infrared heater 2 to diffuse quickly, making the heat inside the body 1 uniform. The air intake of the fan 4 is connected to the bottom of the inner cavity of the body 1 through the air intake connector. This allows the hot air inside the body 1 to circulate and become uniform, facilitating efficient and rapid drying of the fireproof coating.

[0064] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drying device for spraying fire-retardant coatings, comprising a body (1), characterized in that, An infrared heater (2) is provided in the middle of the inner cavity of the body (1). A rotating bracket (3) is fitted on the outside of the infrared heater (2). The rotating bracket (3) is rotatably connected to the body (1). An air duct (23) is provided in the middle of the infrared heater (2). The air duct (23) is connected to the inner cavity of the body (1). A fan (4) is provided at the top of the body (1). The air outlet of the fan (4) is connected to the top opening of the air duct (23). A drain connector (6) is provided at the bottom of the back of the body (1). The drain connector (6) is connected to the inner cavity of the body (1). The fan (4) and the drain connector (6) are connected by a connecting pipe (7).

2. The drying device for fire-retardant coating spraying according to claim 1, characterized in that, The front bottom of the body (1) is provided with a control panel (11), and the bottom corner of the body (1) is provided with a support foot (12); the front opening of the body (1) is rotatably connected to a door (13), and the side of the door (13) not connected to the body (1) is provided with a handle (14), and the middle of the door (13) is provided with an observation window (15); the back of the body (1) is provided with a socket (18) near the bottom, the top of the body (1) is provided with an installation port (16), and the edge of the installation port (16) is provided with a limiting groove (17); the bottom inner side of the body (1) is provided with a power plug (19) aligned with the installation port (16), and the outside of the power plug (19) is provided with a collar (191).

3. The drying device for fire-retardant coating spraying according to claim 2, characterized in that, The infrared heater (2) has multiple partitions (21) on its side, and heating tubes (22) are provided between adjacent partitions (21). The top opening edge of the air duct (23) is provided with a transition groove (24). The top of the air duct (23) is provided with a mounting ring (25). The mounting ring (25) is provided with multiple mounting holes (26). The mounting ring (25) is embedded in the limiting groove (17). The bottom end of the infrared heater (2) is provided with a power connection slot (27).

4. The drying device for fire-retardant coating spraying according to claim 2, characterized in that, The rotating bracket (3) has bearings (31) at its top and bottom inner sides, and the bearings (31) are interference-fitted with the collar (191); and the rotating bracket (3) has multiple connecting rods (32) on its side, and the connecting rods (32) have limiting grooves (33) on their side.

5. A drying device for fire-retardant coating spraying according to claim 3, characterized in that, The fan (4) has symmetrical fixed feet (41) on both sides of the ground, and the fixed feet (41) have multiple fixed holes (42); one end of the fan (4) has an air intake pipe (43), the bottom end of the air intake pipe (43) has an adapter cap (44), the other end of the fan (4) has an exhaust pipe (45), the end of the exhaust pipe (45) is rotatably connected to an adapter (46), the bottom end of the adapter (46) has an adapter pipe (47), and the adapter pipe (47) is threadedly connected to the adapter groove (24).

6. A drying device for fire-retardant coating spraying according to claim 2, characterized in that, The drain connector (6) has a pipe connector (61) on its back and an installation cap (62) at the top of the pipe connector (61). The drain connector (6) has countersunk holes (63) symmetrically arranged on both sides. The drain connector (6) has a plug connector (64) on the side facing the body (1) and the plug connector (64) is inserted into the socket (18).

7. A drying apparatus for spraying fire-retardant coatings according to any one of claims 1-6, characterized in that, It also includes a tray (5), and multiple trays (5) are provided, with multiple trays (5) being sequentially mounted on the rotating bracket (3) from top to bottom.

8. A drying device for fire-retardant coating spraying according to claim 7, characterized in that, The tray (5) has a retaining ring (51) on its edge, and the retaining ring (51) has symmetrical grips (52) on both sides. The tray (5) has a sleeve (53) in the middle, and the sleeve (53) has multiple locking rods (54) evenly arranged on its inner side. The sleeve (53) has a set screw on its outer side, which is used to fix the position of the tray (5).

9. A drying apparatus for spraying fire-retardant coatings according to any one of claims 1-6, characterized in that, It also includes a dehumidifying filter element (8), and a flow box (71) is provided in the middle of the connecting pipe (7). The flow box (71) is provided with a disassembly port (72) on the side. The disassembly port (72) is provided with symmetrical support edges (73) on both sides inside. The dehumidifying filter element (8) is inserted into the flow box (71) through the disassembly port (72).

10. A drying device for fire-retardant coating spraying according to claim 9, characterized in that, The dehumidifying filter element (8) has a groove (81) at one end facing outwards, and a dehumidifying agent (82) is provided inside the dehumidifying filter element (8).

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