Drying device for processing extruded board

Abstract

The utility model relates to extruded board processing technical field especially is a kind of drying device for extruded board processing, including roller conveyor, the roller conveyor is provided with drying mechanism and is used to extruded board drying, drying mechanism includes: main component, including the drying chamber of fixed in the upper end of roller conveyor;Blowing assembly, including the array arrangement of several front supports of fixed in the front end of drying chamber inner wall, drying chamber inner wall rear end is fixed with the array arrangement of several rear supports, both ends between front support and rear support are rotatably installed with air pipe, several spray heads are installed on air pipe, the air pipe front end outer wall of lower end is fixed with swing arm, and swing arm is internally provided with sliding groove, several servo motors are installed in the front end of drying chamber, and front support rear end rotatably installs carousel;Through the symmetrical swing of upper and lower spray heads, form uniform turbulent field, effectively eliminate drying dead angle and thermal stress deformation, significantly improve drying uniformity and product quality.

Description

Technical Field

[0001] This utility model relates to the field of extruded polystyrene (XPS) board processing technology, specifically a drying device for XPS board processing. Background Technology

[0002] Extruded polystyrene (XPS) boards are widely used in construction, cold chain, decoration and renovation, and other fields as a high-performance thermal insulation material. During its production process, after the XPS boards are foamed and extruded, foaming agent and moisture remain inside the boards, and the temperature is relatively high.

[0003] According to CN210089259U, a drying device for extruded polystyrene (XPS) board processing is disclosed. This technology discloses a technical solution including "a drying chamber, a blower, and an air burner. The drying chamber is provided with a drying cavity. A first hot air pipe and a second hot air pipe are arranged side by side on the front side of the drying chamber and below the conveyor roller. A first air outlet pipe and a second air outlet pipe are respectively provided on the rear side of the drying chamber and above and below the conveyor roller. The air outlet of the air burner is connected to the first hot air pipe and the second hot air pipe via a first connecting pipe. The first air outlet pipe and the second air outlet pipe are connected to the air inlet of the blower via a second connecting pipe. The air outlet of the blower is connected to the air inlet of the air burner via a pipe." This technology has the technical effect that "volatile and irritating gases generated during the drying process of XPS board are burned off and removed, effectively avoiding pollution to the surrounding environment, making reasonable use of resources, and realizing the recovery and utilization of heat from the dried gases."

[0004] The aforementioned extruded polystyrene board drying devices generally adopt a fixed air supply structure. Hot air is blown from stationary nozzles in a constant direction onto the board surface, resulting in a limited and uneven airflow coverage. This creates obvious drying dead zones and temperature gradients on the board surface. Some areas deform due to excessive heating, while other areas retain moisture due to insufficient heat, seriously affecting the flatness and quality consistency of the product. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a drying device for extruded board processing. By symmetrically swinging the upper and lower nozzles, a uniform turbulent flow field is formed, effectively eliminating drying dead zones and thermal stress deformation, and significantly improving drying uniformity and product quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying device for processing extruded polystyrene (XPS) boards, comprising a roller conveyor, wherein a drying mechanism is provided on the roller conveyor for drying XPS boards, and the drying mechanism includes:

[0007] The main components include a drying chamber fixed to the upper end of the roller conveyor;

[0008] The air blowing assembly includes several front supports arranged in an array at the front end of the drying chamber wall, and several rear supports arranged in an array at the rear end of the drying chamber wall. Air pipes are rotatably installed between the upper and lower ends of the front and rear supports. Several nozzles are installed on the air pipes. A swing arm is fixed to the outer wall of the lower end of the air pipe, and a sliding groove is opened inside the swing arm. Several servo motors are installed at the front end of the drying chamber. A turntable is rotatably installed at the rear end of the front supports, and the turntable is fixed to the output end of the servo motor. A cam is rotatably installed on the outer edge of the turntable surface, and the cam is located in the sliding groove inside the swing arm.

[0009] The gas supply assembly is mounted on the main assembly and is used for gas delivery.

[0010] Preferably, the air blowing assembly further includes an extension rod fixed to the outer wall of the rear end of the air tube, a rotating rod rotatably installed at the middle of the front end of the rear support, and connecting rods pivotally connected to both ends of the rotating rod, with the other end of the connecting rod pivotally connected to the extension rod.

[0011] Preferably, the air supply assembly includes an air supply pipe fixed at the rear end of the drying chamber, with several connecting pipes fixedly connected to the front end of the air supply pipe, and rotary joints installed between the two ends of the connecting pipes and the rear ends of the upper and lower air pipes.

[0012] Preferably, a heater is installed at the upper end of the drying chamber, a fan is installed between the left end of the heater and the upper end of the drying chamber, an air duct is installed between the right end of the heater and the rear end of the drying chamber, and a dehumidifier is installed on the left side of the upper end of the drying chamber.

[0013] Preferably, the main component further includes a liquid collection hopper fixed inside the roller conveyor, and a drain port is fixedly connected to the lower end of the liquid collection hopper.

[0014] Preferably, the nozzles on the upper and lower ends of the air pipe are staggered, and the spray angles of the corresponding upper and lower nozzles are complementary.

[0015] Beneficial effects

[0016] This utility model provides a drying device for processing extruded polystyrene (XPS) boards. Compared with the prior art, it has the following advantages:

[0017] 1. After the servo motor starts, it drives the turntable to rotate, which in turn drives the cam on its outer edge to make a circular motion. Since the cam is embedded in the swing arm groove at the front end of the lower air pipe, its circular motion is converted into the reciprocating swing of the swing arm through the groove, thereby driving the lower air pipe to swing periodically with its axis as the center. The dynamically swept air is evenly sprayed onto the surface of the extruded board through the nozzle installed on the air pipe, which expands the effective coverage area and eliminates the drying dead corners, making the extruded board heat more evenly.

[0018] 2. When the lower air tube swings, the extension rod fixed to the rear end of the air tube moves accordingly and pushes the rotating rod to rotate on the rear support through the pivoted connecting rod; the rotation of the rotating rod, in turn, drives the extension rod of the upper air tube to move in the opposite direction through the connecting rod on the other side, so that the upper and lower air tubes can swing symmetrically in completely synchronous and opposite directions; ensuring that the upper and lower nozzles always maintain a symmetrical and complementary motion trajectory, forming a complex and uniform turbulent field on the upper and lower surfaces of the extruded board, and completely eliminating the stress deformation problem caused by unidirectional heating. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the air blowing component and air supply component in this utility model;

[0022] Figure 4 This is a schematic diagram of the front end of the air blowing component in this utility model;

[0023] Figure 5 This is a schematic diagram of the rear end of the air blowing component in this utility model.

[0024] In the diagram: 1. Roller conveyor; 2. Drying mechanism; 21. Main component; 211. Drying chamber; 212. Heater; 213. Fan; 214. Air duct; 215. Dehumidifier; 216. Liquid collection hopper; 217. Liquid outlet; 22. Air blowing assembly; 221. Front support; 222. Rear support; 223. Air pipe; 224. Nozzle; 225. Swing arm; 226. Servo motor; 227. Turntable; 228. Cam; 229. Extension rod; 2210. Rotating rod; 2211. Connecting rod; 23. Air supply assembly; 231. Air supply pipe; 232. Connecting pipe; 233. Rotary joint. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0026] Please see Figure 1 - Figure 5This utility model provides a technical solution: a drying device for processing extruded polystyrene (XPS) boards, including a roller conveyor 1, on which a drying mechanism 2 is installed for drying XPS boards. The drying mechanism 2 includes:

[0027] The main component 21 includes a drying chamber 211 fixed to the upper end of the roller conveyor 1;

[0028] The air blowing assembly 22 includes several front supports 221 fixed to the front end of the inner wall of the drying chamber 211 and several rear supports 222 fixed to the rear end of the inner wall of the drying chamber 211. Air pipes 223 are rotatably installed between the upper and lower ends of the front supports 221 and the rear supports 222. Several nozzles 224 are installed on the air pipes 223. A swing arm 225 is fixed to the outer wall of the front end of the lower air pipe 223, and a sliding groove is opened inside the swing arm 225. Several servo motors 226 are installed at the front end of the drying chamber 211. A turntable 227 is rotatably installed at the rear end of the front supports 221, and the turntable 227 is fixed to the output end of the servo motors 226. A cam 228 is rotatably installed on the outer edge of the surface of the turntable 227, and the cam 228 is located in the sliding groove inside the swing arm 225.

[0029] Gas supply component 23 is mounted on main component 21 and is used for gas delivery.

[0030] In this embodiment, after the servo motor 226 starts, it drives the turntable 227 to rotate, which in turn drives the cam 228 on its outer edge to make a circular motion. Since the cam 228 is embedded in the sliding groove of the swing arm 225 at the front end of the lower air pipe 223, its circular motion is converted into the reciprocating swing of the swing arm 225 through the sliding groove, thereby driving the lower air pipe 223 to swing periodically with its axis as the center. The dynamically swept air is evenly sprayed onto the surface of the extruded board through the nozzle 224 installed on the air pipe 223, which expands the effective coverage area and eliminates the drying dead corners, making the extruded board heat more evenly.

[0031] Specifically, the air blowing assembly 22 also includes an extension rod 229 fixed to the outer wall of the rear end of the air tube 223, and a rotating rod 2210 is rotatably installed in the middle of the front end of the rear bracket 222. Both ends of the rotating rod 2210 are pivotally connected to connecting rods 2211, and the other end of the connecting rod 2211 is pivotally connected to the extension rod 229.

[0032] In this embodiment, when the lower air tube 223 swings, the extension rod 229 fixed to the rear end of the air tube 223 moves accordingly, and pushes the rotating rod 2210 to rotate on the rear support 222 through the pivoted connecting rod 2211; the rotation of the rotating rod 2210, in turn, drives the extension rod 229 of the upper air tube 223 to move in the opposite direction through the connecting rod 2211 on the other side, so that the upper and lower air tubes 223 can swing symmetrically in completely synchronous and opposite directions; ensuring that the upper and lower nozzles 224 always maintain a symmetrical and complementary motion trajectory, forming a complex and uniform turbulent field on the upper and lower surfaces of the extruded board, and completely eliminating the stress deformation problem caused by unidirectional heating.

[0033] Specifically, the air supply component 23 includes an air supply pipe 231 fixed at the rear end of the drying chamber 211. Several connecting pipes 232 are fixedly connected to the front end of the air supply pipe 231. Rotary joints 233 are installed between the two ends of the connecting pipes 232 and the rear ends of the upper and lower air pipes 223.

[0034] In this embodiment, when the air pipe 223 in the air blowing assembly 22 is swinging, the rotating end of the rotary joint 233 rotates accordingly. Its internal precision bearing and sealing structure ensure that it always maintains airtightness in the relative rotation state, so that hot air can continuously and leak-free enter the swinging air pipe 223 through the rotary joint 233 and be sprayed out from the nozzle 224.

[0035] Specifically, a heater 212 is installed at the upper end of the drying chamber 211, a fan 213 is installed between the left end of the heater 212 and the upper end of the drying chamber 211, an air duct 214 is installed between the right end of the heater 212 and the rear end of the drying chamber 211, and a dehumidifier 215 is installed on the upper left side of the drying chamber 211.

[0036] In this embodiment, after the fan 213 is started, it draws in the air in the drying chamber 211, pressurizes it and sends it to the heater 212 for heating. The generated high-temperature hot air is transported to the rear end of the drying chamber 211 through the air duct 214 to provide a continuous hot air source for the air blowing assembly 22. At the same time, the dehumidifier 215 installed on the upper left side of the drying chamber 211 continues to work, actively expelling the high-temperature moisture evaporated from the board to the outside, while fresh air is naturally replenished by the negative pressure of the system.

[0037] Specifically, the main component 21 also includes a liquid collection hopper 216 fixed inside the roller conveyor 1, and a drain port 217 is fixedly connected to the lower end of the liquid collection hopper 216.

[0038] In this embodiment, the water vapor generated during the drying process of the extruded board condenses into droplets on the inner wall of the drying chamber 211 or the surface of the extruded board after cooling. Under the action of gravity, the droplets fall naturally into the funnel-shaped liquid collection hopper 216 installed inside the roller conveyor 1. All the condensate collected here is finally discharged outside the device through the drain port 217 connected to its lower end.

[0039] Specifically, the nozzles 224 on the upper and lower air pipes 223 are staggered, and the spray angles of the corresponding upper and lower nozzles 224 are complementary.

[0040] In this embodiment, by setting the nozzles 224 on the upper and lower air pipes 223 in an alternating distribution pattern, direct collision of the upper and lower airflow trajectories is avoided; at the same time, by accurately calculating, the spray angles of the corresponding upper and lower nozzles 224 are made complementary, so that the airflow ejected from the upper nozzle 224 and the airflow ejected from the lower nozzle 224 intertwine in space.

[0041] The working principle and usage process of this utility model are as follows: First, the extruded board is conveyed to the drying chamber 211 by the roller conveyor 1; after the servo motor 226 is started, it drives the turntable 227 to rotate, which drives the cam 228 on its outer edge to make a circular motion; since the cam 228 is embedded in the sliding groove of the swing arm 225 at the front end of the lower air pipe 223, its circular motion is converted into the reciprocating swing of the swing arm 225 through the sliding groove, thereby driving the lower air pipe 223 to swing periodically with its axis as the center;

[0042] Simultaneously, when the lower air tube 223 swings, the extension rod 229 fixed to the rear end of the air tube 223 moves accordingly, and pushes the rotating rod 2210 to rotate on the rear support 222 through the pivoted connecting rod 2211; the rotation of the rotating rod 2210, in turn, drives the extension rod 229 of the upper air tube 223 to move in the opposite direction through the connecting rod 2211 on the other side, so that the upper and lower air tubes 223 can swing symmetrically in completely synchronous and opposite directions; ensuring that the upper and lower nozzles 224 always maintain a symmetrical and complementary motion trajectory, forming a complex and uniform turbulent field on the upper and lower surfaces of the extruded board, and completely eliminating the stress deformation problem caused by unidirectional heating;

[0043] Furthermore, after the fan 213 starts, it draws in the air in the drying chamber 211, pressurizes it and sends it to the heater 212 for heating. The generated high-temperature hot air is transported to the rear end of the drying chamber 211 through the air duct 214 to provide a continuous hot air source for the air blowing assembly 22. At the same time, the dehumidifier 215 installed on the upper left side of the drying chamber 211 continues to work, actively expelling the high-temperature moisture evaporated from the board to the outside, while fresh air is naturally replenished through the system's negative pressure.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for processing extruded polystyrene boards, comprising a roller conveyor (1), characterized in that: The roller conveyor (1) is equipped with a drying mechanism (2) for drying extruded boards. The drying mechanism (2) includes: The main component (21) includes a drying chamber (211) fixed to the upper end of the roller conveyor (1). The air blowing assembly (22) includes several front supports (221) fixed in an array at the front end of the inner wall of the drying chamber (211), several rear supports (222) fixed in an array at the rear end of the inner wall of the drying chamber (211), air pipes (223) rotatably installed between the upper and lower ends of the front supports (221) and the rear supports (222), several nozzles (224) installed on the air pipes (223), a swing arm (225) fixed on the outer wall of the front end of the lower air pipe (223), and a sliding groove is opened inside the swing arm (225). Several servo motors (226) are installed at the front end of the drying chamber (211), a turntable (227) is rotatably installed at the rear end of the front support (221), and the turntable (227) is fixed to the output end of the servo motor (226). A cam (228) is rotatably installed on the outer edge of the surface of the turntable (227), and the cam (228) is located in the sliding groove inside the swing arm (225). Gas supply assembly (23) is mounted on main assembly (21) and used for gas delivery.

2. The drying device for processing extruded polystyrene boards according to claim 1, characterized in that: The air blowing assembly (22) also includes an extension rod (229) fixed to the outer wall of the rear end of the air pipe (223). A rotating rod (2210) is rotatably installed in the middle of the front end of the rear bracket (222). Both ends of the rotating rod (2210) are pivotally connected to connecting rods (2211), and the other end of the connecting rod (2211) is pivotally connected to the extension rod (229).

3. The drying device for processing extruded polystyrene boards according to claim 1, characterized in that: The air supply assembly (23) includes an air supply pipe (231) fixed at the rear end of the drying chamber (211). The front end of the air supply pipe (231) is connected to several connecting pipes (232). Rotary joints (233) are installed between the two ends of the connecting pipes (232) and the rear ends of the upper and lower air pipes (223).

4. The drying device for processing extruded polystyrene boards according to claim 1, characterized in that: A heater (212) is installed at the upper end of the drying chamber (211). A fan (213) is installed between the left end of the heater (212) and the upper end of the drying chamber (211). An air duct (214) is installed between the right end of the heater (212) and the rear end of the drying chamber (211). A dehumidifier (215) is installed on the left side of the upper end of the drying chamber (211).

5. A drying device for processing extruded polystyrene boards according to claim 1, characterized in that: The main component (21) also includes a liquid collection hopper (216) fixed inside the roller conveyor (1), and the lower end of the liquid collection hopper (216) is connected to a drain port (217).

6. A drying device for processing extruded polystyrene boards according to claim 1, characterized in that: The nozzles (224) on the air pipes (223) at both ends are staggered, and the spray angles of the corresponding nozzles (224) are complementary.

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