High-temperature formaldehyde removal device capable of efficiently heating artificial board

Abstract

The utility model discloses an efficient heating artificial board high-temperature formaldehyde removal device which comprises a shell, a heating chamber is arranged in the shell, a conveying roller used for conveying an artificial board and a fan used for introducing hot air into the heating chamber are arranged in the heating chamber, and the shell is provided with a discharging port used for outputting the artificial board in the outlet direction of the conveying roller. The fan communicates with an air conveying channel arranged in the shell, at least two air outlet channels are evenly distributed on the air conveying channel in the extending direction of the conveying rollers, and the two ends of each air outlet channel communicate with the heating chamber and the air conveying channel correspondingly. The air outlet channel and the conveying roller are obliquely arranged, and the distance between each position in the air outlet channel and the conveying roller is gradually reduced in the axial direction of the conveying roller. According to the utility model, the conveying speed of the artificial board can be kept in the heating chamber, and meanwhile, a better heating effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial board processing, in particular to a device for efficiently heating artificial boards and removing formaldehyde at high temperatures. Background Art

[0002] Artificial boards are widely used, mainly in furniture manufacturing, building decoration, packaging materials, shipbuilding and handicraft production.

[0003] In the process of processing artificial boards, it is usually necessary to remove formaldehyde from the artificial boards. In the process of removing formaldehyde from the artificial boards, it is usually adopted as shown in the Chinese patent application with publication number CN212763964U, to set vents in the heating chamber to blow hot air to the artificial boards, thereby heating the artificial boards.

[0004] However, in the process of heating the artificial boards, the artificial boards need to be sealed in the heating chamber with the first isolation door and the second isolation door. After the artificial boards are heated in the heating chamber, the second isolation door is opened to continue conveying the heated artificial boards. Since the opening and closing of the first isolation door and the second isolation door both take a certain amount of time, the conveying speed of the artificial boards will be affected by the opening and closing time of the first isolation door and the second isolation door, thereby reducing the processing efficiency of the artificial boards. Directly removing the first isolation door and the second isolation door will affect the heating effect of the artificial boards. Utility Model Content

[0005] The utility model aims to provide a device for removing formaldehyde at a high temperature by efficiently heating artificial boards, which can achieve a better heating effect while maintaining a conveying speed of the artificial boards in a heating chamber.

[0006] In order to solve the above technical problems, the utility model adopts the following solutions:

[0007] A highly efficient device for removing formaldehyde by heating artificial boards at high temperature, comprising a housing, a heating chamber provided in the housing, a conveying roller for conveying artificial boards and a fan for introducing hot air into the heating chamber, the housing being provided with a discharge port for discharging artificial boards in the outlet direction of the conveying roller, the fan being connected to an air delivery duct provided in the housing, at least two air outlets being evenly distributed on the air delivery duct along the extending direction of the conveying roller, the two ends of the air outlet being respectively connected to the heating chamber and the air delivery duct, in the projection of the housing along the conveying direction of the artificial boards, the air outlet and the conveying roller being arranged obliquely, and the distance between each place in the air outlet and the conveying roller gradually decreasing along the axial direction of the conveying roller. The conveying roller is arranged horizontally and perpendicular to the conveying direction of the artificial boards in the housing. Its function is that, since the air outlet direction of the air outlet duct in the prior art is set perpendicular to the axial direction of the conveying roller on the projection of the axial direction of the conveying roller, that is, the airflow in the heating chamber is a circulation around the front and rear end surfaces of the artificial board, and the forward direction of the circulation on one of the upper and lower surfaces of the artificial board is opposite to the forward direction of the artificial board in the heating chamber, resulting in a shorter heating time of this surface of the artificial board. By changing the direction of the air outlet duct, the plane formed by the hot air blown out by all the air outlet ducts is set perpendicular to the forward direction of the artificial board, thereby extending the heating time of the hot air on the artificial board, improving the heating effect of the hot air on the artificial board, and enabling the artificial board to maintain a better heating effect while maintaining the conveying speed in the heating chamber.

[0008] Furthermore, in the cross section along the conveying direction of the artificial board in the same housing, the whole composed of the fan, the air supply duct and the air outlet duct is provided with a group in the upper and lower side walls of the heating chamber respectively. The whole composed of the air supply duct and the air outlet duct is provided with at least two groups in the conveying direction of the artificial board, and all the air supply ducts are connected to the fan. Its function is that through the arrangement of the air outlet ducts on the upper and lower sides of the heating chamber, the upper and lower sides of the artificial board entering the heating chamber can be heated.

[0009] Furthermore, in the cross section along the conveying direction of the artificial board in the same housing, two groups of fans, air delivery ducts, and air outlet ducts are arranged symmetrically around the discharge port. The function is that the design of the air outlet ducts being arranged symmetrically around the discharge port can form a hot air circulation around the conveying direction of the artificial board in the heating chamber, so that the artificial board passes vertically through the circulation planes during the process of moving forward in the heating chamber, thereby improving the heating effect of the artificial board.

[0010] Furthermore, the heating chamber is provided with an air guide plate extending along the conveying direction of the conveying roller, the air guide plate is arranged in the air outlet direction of the air outlet duct, and the projection direction of the inclination direction of the air guide plate on the axial direction of the conveying roller is opposite to the projection direction of the air outlet direction of the air outlet duct on the axial direction of the conveying roller. Its function is that, through the arrangement of the air guide plate, the hot air blown from the air outlet to the left and right side walls of the heating chamber can be guided to the middle of the heating chamber to continue heating the artificial board.

[0011] Furthermore, there are two air guide plates, which are arranged symmetrically around the discharge port. The function is to form two upper and lower circulations in the cross section along the conveying direction of the artificial board in the same shell through the spatial layout of the two air guide plates, so that the artificial board passes through the interface of the upper and lower circulations, further improving the heating effect of the artificial board.

[0012] Furthermore, the cross section of the air guide plate is in an arc shape, and the slope of the air guide plate and the conveying roller in the axial direction gradually decreases in the direction toward the conveying roller. Its function is that, through the setting of the shape of the air guide plate, the wind blowing toward the artificial board through the air guide plate is as close to the upper and lower surfaces of the artificial board as possible, thereby improving the heating effect of the artificial board.

[0013] Furthermore, the air delivery duct is connected to a guide channel at one end away from the fan, and the outlet height of the guide channel is the same as the height of the discharge port. Its function is to assist in forming a complete circulation in the heating chamber through the setting of the guide channel.

[0014] Furthermore, a diameter expansion channel is connected between the flow guide channel and the heating chamber, and the inner diameter of the diameter expansion channel gradually increases from the flow guide channel toward the heating chamber. Its function is that through the setting of the diameter expansion channel, the wind discharged from the flow guide channel can be diffused into the heating chamber to assist in the formation of circulation.

[0015] Furthermore, an air inlet duct is provided on the side wall of the shell to connect the heating chamber with the outside of the shell, and the air inlet duct is arranged opposite to the air guide plate. The air inlet duct is arranged at the surface adjacent to the air outlet duct. Its function is to facilitate the introduction of air into the heating chamber to maintain the air pressure while making the air inlet direction of the air inlet duct conform to the direction of the circulation rotation through the setting of the position of the air inlet duct.

[0016] Furthermore, a heating component is provided in the air delivery duct, and the heating component adopts any existing technology, such as a hot oil pipe.

[0017] The utility model has the beneficial effects:

[0018] 1. Since the air outlet direction of the air outlet duct in the prior art is arranged perpendicular to the axial direction of the conveying roller on the projection of the axial direction of the conveying roller, that is, the airflow in the heating chamber is a circulation around the front and rear end surfaces of the artificial board, and the forward direction of the circulation on one of the upper and lower surfaces of the artificial board is opposite to the forward direction of the artificial board in the heating chamber, resulting in a shorter heating time of the surface of the artificial board. By changing the direction of the air outlet duct, the plane formed by the hot air blown out by all the air outlet ducts is arranged perpendicular to the forward direction of the artificial board, thereby extending the heating time of the hot air on the artificial board, improving the heating effect of the hot air on the artificial board, and enabling the artificial board to have a better heating effect while maintaining the conveying speed in the heating chamber;

[0019] 2. The spatial layout of the two air guide plates facilitates the formation of two upper and lower circulations on the cross section along the conveying direction of the artificial board in the same shell, so that the artificial board passes through the interface of the upper and lower circulations, further improving the heating effect of the artificial board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of this embodiment (arrows indicate the direction of airflow).

[0021] Figure numerals: 1. Shell; 2. Heating chamber; 3. Fan; 4. Discharge port; 5. Air supply duct; 6. Air outlet duct; 7. Air guide plate; 8. Flow guide duct; 9. Expansion channel; 10. Air inlet duct; 11. Heat generating component; 12. Conveying roller. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0023] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1

[0026] A highly efficient device for heating artificial boards and removing formaldehyde at high temperature, such as Figure 1As shown, it includes a shell 1, a heating chamber 2 is arranged in the shell 1, a conveying roller 12 for conveying artificial boards and a fan 3 for introducing hot air into the heating chamber 2 are arranged in the heating chamber 2, the shell 1 is provided with a discharge port 4 for discharging artificial boards in the outlet direction of the conveying roller 12, the fan 3 is connected with an air delivery duct 5 arranged in the shell 1, at least two air outlet ducts 6 are evenly distributed on the air delivery duct 5 along the extension direction of the conveying roller 12, and the two ends of the air outlet duct 6 are respectively connected with the heating chamber 2 and the air delivery duct 5, in the projection of the shell 1 along the conveying direction of the artificial boards, the air outlet duct 6 and the conveying roller 12 are arranged obliquely, and the distance between each point in the air outlet duct 6 and the conveying roller 12 gradually decreases along the axial direction of the conveying roller 12. The conveying roller 12 is arranged horizontally and perpendicular to the conveying direction of the artificial boards in the shell 1, and a plurality of conveying rollers 12 are evenly arranged along the conveying direction of the artificial boards. Its function is that, since the air outlet direction of the air outlet 6 in the prior art is set perpendicular to the axial direction of the conveying roller 12 on the projection of the axial direction of the conveying roller 12, that is, the airflow in the heating chamber 2 is a circulation around the front and rear end surfaces of the artificial board, and the forward direction of the circulation on one of the upper and lower surfaces of the artificial board is opposite to the forward direction of the artificial board in the heating chamber 2, resulting in a shorter heating time of this surface of the artificial board. By changing the direction of the air outlet 6, the plane formed by the hot air blown out by all the air outlets 6 is set perpendicular to the forward direction of the artificial board, thereby extending the heating time of the hot air on the artificial board, improving the heating effect of the hot air on the artificial board, and enabling the artificial board to maintain a better heating effect while maintaining the conveying speed in the heating chamber 2.

[0027] Specifically, Figure 1 As shown, in the cross section along the conveying direction of the artificial board in the same housing 1, the whole composed of the fan 3, the air delivery duct 5, and the air outlet duct 6 is provided with a group in each of the upper and lower side walls of the heating chamber 2. The whole composed of the air delivery duct 5 and the air outlet duct 6 is provided with at least two groups in the conveying direction of the artificial board, and all the air delivery ducts 5 are connected to the fan 3. Its function is that through the arrangement of the air outlet ducts 6 on the upper and lower sides of the heating chamber 2, the upper and lower sides of the artificial board entering the heating chamber 2 can be heated.

[0028] Specifically, Figure 1 As shown, in the cross section along the conveying direction of the artificial board in the same housing 1, two groups of fans 3, air delivery ducts 5, and air outlet ducts 6 are arranged symmetrically around the discharge port 4. The function is that the design of the air outlet duct 6 being arranged symmetrically around the discharge port 4 can form a hot air circulation around the conveying direction of the artificial board in the heating chamber 2, so that the artificial board passes vertically through the circulation planes during the process of advancing in the heating chamber 2, thereby improving the heating effect of the artificial board.

[0029] Specifically, Figure 1As shown, the heating chamber 2 is provided with an air guide plate 7 extending along the conveying direction of the conveying roller 12, the air guide plate 7 is arranged in the air outlet direction of the air outlet duct 6, and the projection direction of the inclination direction of the air guide plate 7 on the axial direction of the conveying roller 12 is opposite to the projection direction of the air outlet direction of the air outlet duct 6 on the axial direction of the conveying roller 12. Its function is that, through the arrangement of the air guide plate 7, the hot air blown from the air outlet to the left and right side walls of the heating chamber 2 can be guided to the middle of the heating chamber 2 to continue heating the artificial board.

[0030] Specifically, Figure 1 As shown, there are two air guide plates 7, which are arranged symmetrically around the discharge port 4. The function is to form two upper and lower circulations in the cross section along the conveying direction of the artificial board in the same housing 1 through the spatial layout of the two air guide plates 7, so that the artificial board passes through the interface of the upper and lower circulations, further improving the heating effect of the artificial board.

[0031] Specifically, Figure 1 As shown, the cross section of the air guide plate 7 is in an arc shape, and the slope of the air guide plate 7 and the conveying roller 12 in the axial direction gradually decreases in the direction toward the conveying roller 12. Its function is that, through the setting of the shape of the air guide plate 7, the wind blowing toward the artificial board through the air guide plate 7 is as close to the upper and lower surfaces of the artificial board as possible, thereby improving the heating effect of the artificial board.

[0032] Specifically, Figure 1 As shown, the air delivery channel 5 is connected to a guide channel 8 at one end away from the fan 3, and the outlet height of the guide channel 8 is the same as the height of the discharge port 4. Its function is to assist in forming a complete circulation in the heating chamber 2 through the setting of the guide channel 8.

[0033] Specifically, Figure 1 As shown, the guide channel 8 is connected to the heating chamber 2 by an expansion channel 9, and the inner diameter of the expansion channel 9 gradually increases from the guide channel 8 toward the heating chamber 2. Its function is that, through the setting of the expansion channel 9, the wind discharged from the guide channel 8 can be diffused into the heating chamber 2 to assist in the formation of circulation.

[0034] Specifically, Figure 1 As shown, the side wall of the housing 1 is provided with an air inlet 10 for connecting the heating chamber 2 with the outside of the housing 1, and the air inlet 10 is arranged opposite to the air guide plate 7. The air inlet 10 is arranged at the surface adjacent to the air outlet 6. Its function is to facilitate the introduction of air into the heating chamber 2 to maintain the air pressure while making the air inlet direction of the air inlet 10 conform to the direction of the circulation rotation through the position of the air inlet 10.

[0035] Specifically, Figure 1 As shown, a heating component 11 is provided in the air delivery duct 5. The heating component 11 is a hot oil pipe.

[0036] The working principle of this embodiment is as follows: Since all the air ducts in the housing 1 are arranged symmetrically around the discharge port 4 (i.e., the normal line of the discharge port 4 passing through the center), Figure 1 The circulation below the middle discharge port 4 is explained. When the fan 3 is taking in air, the air inlet 10 on the right side of the fan 3 introduces outside air into the heating chamber 2. The wind exhausted by the fan 3 is heated by the air delivery duct 5 and enters the air outlet 6, and is shot into the heating chamber 2 from bottom to top and from right to left. The hot air blown out from the air outlet 6 moves to the left to the air guide plate 7 and blows from bottom to top and from left to right to the lower surface of the discharge port 4 (i.e., the lower surface of the artificial board). The hot air blown onto the lower surface of the artificial board moves from left to right, is guided by the hot air blown out from the expansion port on the right and moves from top to bottom and from right to left, forming a circulation below the artificial board. The circulation above the artificial board is formed in the same way. When the artificial board is transported by the conveying roller 12, it passes through the interface of the upper and lower circulations, and the heating effect is good.

[0037] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A highly efficient high-temperature formaldehyde removal device for heating artificial boards, comprising a housing (1), a heating chamber (2) provided in the housing (1), a conveying roller (12) for conveying artificial boards and a fan (3) for introducing hot air into the heating chamber (2) provided in the heating chamber (2), characterized in that: The shell (1) is provided with a discharge port (4) for discharging the artificial board in the outlet direction of the conveying roller (12); the fan (3) is connected to an air delivery duct (5) arranged in the shell (1); at least two air outlet ducts (6) are evenly distributed on the air delivery duct (5) along the extension direction of the conveying roller (12); the two ends of the air outlet duct (6) are respectively connected to the heating chamber (2) and the air delivery duct (5); in the projection of the shell (1) along the conveying direction of the artificial board, the air outlet duct (6) and the conveying roller (12) are inclined, and the distance between each point in the air outlet duct (6) and the conveying roller (12) gradually decreases along the axial direction of the conveying roller (12).

2. The high-efficiency high-temperature formaldehyde removal device for heating artificial boards according to claim 1 is characterized in that: In the cross section along the conveying direction of the artificial board in the same shell (1), a group of components consisting of a fan (3), an air supply duct (5) and an air outlet duct (6) are respectively provided in the upper and lower side walls of the heating chamber (2).

3. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 2 is characterized in that: In the cross section along the conveying direction of the artificial board in the same housing (1), two groups of fans (3), air delivery ducts (5) and air outlet ducts (6) are integrally arranged around the discharge port (4) in a centrally symmetrical manner.

4. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 3 is characterized in that: The heating chamber (2) is provided with an air guide plate (7) extending along the conveying direction of the conveying roller (12); the air guide plate (7) is arranged in the air outlet direction of the air outlet duct (6); and the projection direction of the inclination direction of the air guide plate (7) on the axial direction of the conveying roller (12) is opposite to the projection direction of the air outlet direction of the air outlet duct (6) on the axial direction of the conveying roller (12).

5. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 4 is characterized in that: Two air guide plates (7) are provided, and the two air guide plates (7) are arranged around the discharge port (4) in a centrally symmetrical manner.

6. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 4 is characterized in that: The cross section of the air guide plate (7) is in the shape of an arc, and the axial slope of the air guide plate (7) and the conveying roller (12) gradually decreases in the direction toward the conveying roller (12).

7. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 4 is characterized in that: The air delivery channel (5) is connected to a flow guide channel (8) at one end away from the fan (3), and the outlet height of the flow guide channel (8) is the same as the height of the discharge port (4).

8. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 7 is characterized in that: An expansion channel (9) is connected between the flow guide channel (8) and the heating chamber (2), and the inner diameter of the expansion channel (9) gradually increases from the flow guide channel (8) toward the heating chamber (2).

9. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 4, characterized in that: An air inlet duct (10) is provided on the side wall of the shell (1) for connecting the heating chamber (2) with the outside of the shell (1), and the air inlet duct (10) is arranged opposite to the air guide plate (7).

10. The high-efficiency high-temperature formaldehyde removal device for heating artificial panels according to claim 1, characterized in that: A heat-generating component (11) is provided in the air delivery duct (5).

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