Glass drying tunnel furnace

Abstract

The utility model relates to a glass drying tunnel furnace which comprises a furnace body, at least two hot air circulation devices arranged at the top of the furnace body, and at least two hot air circulation devices arranged at the bottom of the furnace body, the hot air circulation device comprises an air blowing assembly, a flow guide assembly and a heating assembly, the air blowing assembly forms circulating air flow through the flow guide assembly, and the heating assembly heats the circulating air flow to form hot air circulation for drying the glass products; wherein the at least two hot air circulation devices are arranged in different directions, and hot air circulation in at least two different directions is formed in the furnace body. According to the glass drying tunnel furnace, after being conveyed into the glass drying tunnel furnace, the glass products can be subjected to hot air circulation from at least two directions in the furnace body, so that the glass products are dried by hot air more comprehensively, the heat efficiency of the glass drying tunnel furnace is improved, and the problems that a traditional tunnel furnace is poor in hot air circulation and poor in drying efficiency are solved.

Description

Technical Field

[0001] The present application relates to the technical field of glass manufacturing, and in particular to a glass drying tunnel furnace. Background Art

[0002] In the basic glass manufacturing field, the substrate glass often needs to be sprayed with chemicals during the production process. The treated substrate glass needs to be dried or cured to remove the residual chemical solution, and a tunnel furnace is usually used for this operation. A tunnel furnace generally includes multiple furnace bodies, each of which is equipped with a hot air circulation structure. Ordinary tunnel furnaces have unreasonable hot air circulation structures and poor hot air circulation effects, resulting in the defect of low overall thermal efficiency. For example, Chinese Patent 202223179143.2 discloses a drying tunnel furnace for screen printing of vehicle-mounted display cover glass, which is equipped with an air blower, an air filter, a heater, etc. However, the air blower is simply designed and does not form a good hot air circulation. Therefore, the overall thermal efficiency is still insufficient and the drying effect needs to be improved. Utility Model Content

[0003] The present application provides a glass drying tunnel furnace to solve the problem in the prior art that the air supply link of the glass drying tunnel furnace is simply designed and does not form a good hot air circulation, resulting in general drying effect and low thermal efficiency.

[0004] A glass drying tunnel furnace provided in the present application includes a furnace body, a transport device for transporting glass products is arranged at the middle and lower part of the furnace body, and further includes:

[0005] At least two hot air circulation devices are arranged on the top of the furnace body; the hot air circulation devices include: a blowing component, a flow guiding component and a heating component, the blowing component forms a circulating airflow through the flow guiding component, and the heating component heats the circulating airflow to form a hot air circulation for drying the glass product;

[0006] Among them, at least two hot air circulation devices are arranged in different directions, forming at least two hot air circulations in different directions in the furnace body.

[0007] In some embodiments, the hot air circulation device includes two symmetrically arranged hot air circulation devices, which are symmetrically arranged along the length direction of the furnace body to form hot air circulation in opposite directions.

[0008] In some embodiments, the air blowing assembly includes: a motor, and a wind wheel disposed on an output shaft of the motor;

[0009] The guide assembly includes: an air inlet, a wind wheel cover and an air outlet which are connected in sequence, and the wind wheel cover is arranged outside the wind wheel; the air inlets of the two hot air circulation devices are arranged toward the front wall and the rear wall of the furnace body respectively, and the air outlets of the two hot air circulation devices are arranged facing each other.

[0010] In some embodiments, the heating component is a heating tube, the inlet of the heating tube is arranged toward the air outlet of the air guide component, and the outlet of the heating tube is arranged toward the bottom of the furnace body.

[0011] In some embodiments, the air guide assembly further includes a plurality of air guide baffles arranged in parallel, wherein the air guide baffles are arranged at the air outlet, and the air guide baffles guide the circulating airflow into the heating tube.

[0012] In some embodiments, the air guide baffle is a movable mechanism, and the air guide assembly further includes a driving mechanism, which is connected to the air guide baffle and periodically changes the direction of the air guide baffle.

[0013] In some embodiments, the hot air circulation device further comprises a filter, which is disposed below the outlet of the heating tube. In some embodiments, the glass drying tunnel furnace further comprises a heating lamp panel, which is disposed below the filter.

[0014] In some embodiments, the wind wheel is a multi-blade wind wheel; the heating tube is a stainless steel heating tube, on which an electric heating wire is arranged.

[0015] In some embodiments, the furnace body includes an outer shell, an interlayer plate is disposed on the inner side of the outer shell, and an insulation layer is disposed between the interlayer plate and the outer shell.

[0016] The glass drying tunnel furnace of the present application includes at least two hot air circulation devices arranged on the top of the furnace body, and the hot air circulation devices include: a blowing component, a flow guide component and a heating component, the blowing component forms a circulating airflow through the flow guide component, and the heating component heats the circulating airflow to form a hot air circulation for drying the glass products; wherein, at least two hot air circulation devices are arranged in different directions, forming at least two hot air circulations in different directions in the furnace body. Thus, through the present application, after the glass products are transported into the glass drying tunnel furnace, they can be subjected to hot air circulation from at least two directions in the furnace body, so that the glass products can be dried by hot air more comprehensively, the thermal efficiency of the glass drying tunnel furnace is improved, and the problems of poor hot air circulation and poor drying efficiency of traditional tunnel furnaces are overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1A schematic diagram of the longitudinal cross-sectional structure of a glass drying tunnel furnace according to an embodiment of the present application is shown;

[0020] Figure 2 A schematic diagram of the three-dimensional appearance structure of a glass drying tunnel furnace according to an embodiment of the present application is shown;

[0021] Figure 3 A schematic diagram of the air outlet structure of the guide assembly of the glass drying tunnel furnace according to an embodiment of the present application is shown;

[0022] Figure 4 A schematic diagram of the three-dimensional appearance structure of a glass drying tunnel furnace according to an embodiment of the present application is shown;

[0023] The above drawings include the following reference numerals:

[0024] 100. furnace body; 110. frame; 120. supporting assembly; 130. outer shell; 200. transport device; 300. hot air circulation device; 310. motor; 311. wind wheel; 320. air inlet; 321. wind wheel cover; 322. air outlet; 3221. air guide baffle; 330. heating tube; 340. filter; 400. heating lamp board; 500. glass product. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Figures 1 to 4 An embodiment of the glass drying tunnel furnace of the present application is schematically shown.

[0031] like Figures 1 to 4 As shown, the present application discloses a glass drying tunnel furnace, including a furnace body 100, a transport device 200 for transporting a glass product 500 is arranged at the middle and lower part of the furnace body 100, and the glass product 500 is heated and dried in the furnace body 100. The glass drying tunnel furnace also includes: at least two hot air circulation devices 300 arranged at the top of the furnace body 100. The hot air circulation device 300 includes: a blowing component, a guide component and a heating component, the blowing component forms a circulating airflow through the guide component, and the heating component heats the circulating airflow to form a hot air circulation for drying the glass product 500. Among them, at least two hot air circulation devices 300 are arranged in different directions, forming at least two hot air circulations in different directions in the furnace body 100.

[0032] Through the above structure, in the embodiment of the present application, after the glass product 500 is transported into the glass drying tunnel furnace, it can be subjected to hot air circulation from at least two directions in the furnace body 100, so that the glass product 500 can be dried by hot air more comprehensively, so as to improve the thermal efficiency of the glass drying tunnel furnace and overcome the problems of poor hot air circulation and poor drying efficiency of traditional tunnel furnaces.

[0033] In some embodiments of the present application, Figure 1 , Figure 2 and Figure 4As shown, the hot air circulation device 300 includes two symmetrically arranged hot air circulation devices 300, which are symmetrically arranged along the length direction of the furnace body 100 to form hot air circulation in opposite directions. The length direction of the furnace body 100 refers to the transportation direction of the glass product 500 in the furnace body 100. When the transportation device 200 (such as a conveyor belt) drives the glass product 500 into the furnace body 100 and moves along the furnace body 100, the glass product 500 will respectively pass through two hot air circulations in opposite directions, so that different surfaces of the glass product 500 in different directions are all subjected to hot air drying, avoiding the glass product 500 having a surface or corner that is always leeward, resulting in incomplete drying of the liquid medicine, thereby improving the drying efficiency of the glass product 500.

[0034] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the blowing assembly includes: a motor 310, and a wind wheel 311 arranged on the output shaft of the motor 310. The motor 310 is fixedly arranged on the top of the furnace body 100. The air guide assembly includes: an air inlet 320, a wind wheel cover 321 and an air outlet 322 which are connected in sequence. The wind wheel cover 321 is arranged outside the wind wheel 311. The motor 310 drives the wind wheel 311 to rotate. The wind wheel 311 forms a directional airflow circulation through the air guide assembly, and the air enters from the air inlet 320 and is discharged from the air outlet 322. Figure 1 and Figure 2 As shown in FIG. 1 , the air inlets 320 of the two hot air circulation devices 300 are respectively arranged toward the front wall and the rear wall of the furnace body 100, and the air outlets 322 of the two hot air circulation devices 300 are arranged facing each other. Thus, the air guide components of the two hot air circulation devices 300 face each other to discharge air, forming two hot air circulations with opposite flow directions in the furnace body 100. Figure 2 As shown. Through these two hot air circulations, both the front and rear surfaces of the glass product 500 can be blown by the wind, thereby achieving comprehensive drying of multiple surfaces. Especially when the glass product 500 has wind-blocking structures such as corners, it can avoid the generation of drying dead corners and improve the drying effect. In the embodiment of the present application, the hot air circulation directions of the two hot air circulation devices 300 are both within the transportation direction of the glass product 500, and the flow directions are opposite to each other, that is, one is clockwise and the other is counterclockwise.

[0035] In some other embodiments of the present application, the hot air direction of multiple hot air circulation devices 300 can also be set along the transportation direction perpendicular to the glass product 500, or can be set along the transportation direction of the glass product 500 and perpendicular to the transportation direction of the glass product 500 at the same time, so as to dry the glass product 500 from more directions and achieve a drying effect that is as comprehensive and uniform as possible. For example, in some other embodiments of the present application, more hot air circulation devices 300 can be set, such as four, so as to form corresponding hot air circulations in the four directions of front, back, left and right in the transportation plane of the glass product 500. Accordingly, the four hot air circulation devices 300 are divided into two groups, and the guide components of the hot air circulation devices 300 between the two groups are vertically arranged to form an orthogonal airflow; the guide components of the hot air circulation devices 300 in the two groups are symmetrically arranged to form a reverse airflow.

[0036] Based on this, in some embodiments of the present application, on the basis that the glass drying tunnel furnace has multiple sub-furnace bodies, a hot air circulation device 300 along the transportation direction of the glass product 500 can be set in a part of the sub-furnace bodies, and a hot air circulation device 300 perpendicular to the transportation direction of the glass product 500 can be set in another part of the sub-furnace bodies. In this way, the uniform drying of the glass product 500 in all directions can be satisfied, and the difficulty of setting the hot air circulation device 300 in a single sub-furnace body can be simplified.

[0037] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the heating component is a heating tube 330, the inlet of the heating tube 330 is arranged toward the air outlet 322 of the air guide component, and the outlet of the heating tube 330 is toward the bottom of the furnace body 100. The directional airflow guided by the air guide component is heated by the heating tube 330 and then discharged downward to blow toward the glass product 500 in the middle and lower part of the furnace body 100, and finally forms a hot air circulation with the help of the outer shell 130 of the furnace body 100.

[0038] In some embodiments of the present application, Figure 3 As shown, the air guide assembly also includes a plurality of air guide baffles 3221 arranged in parallel. The air guide baffles 3221 are arranged at the air outlet 322. The air guide baffles 3221 guide the circulating airflow into the heating tube 330 to achieve stable and smooth flow of the airflow.

[0039] In some embodiments of the present application, the air guide baffle 3221 is a movable mechanism, and the air guide assembly also includes a driving mechanism, which is connected to the air guide baffle 3221 and changes the direction of the air guide baffle 3221 at regular intervals. The air guide baffle 3221 is, for example, a swingable plate, which is rotatably installed at the air outlet 322 through a vertical shaft. The driving mechanism includes, for example, a driving motor and a crankshaft transmission member, which connect the air guide baffle 3221 to drive it to swing. By driving the air guide baffle 3221 at regular intervals through the driving mechanism, the air guide baffle 3221 can be continuously changed in direction, thereby controlling the directional airflow to continuously change direction to flow through various areas in the tube of the heating tube 330, so that the airflow is heated evenly, and at the same time, the heating tube 330 can be prevented from being heated unevenly and causing the risk of local high temperature. In the heating tube 330, the heating wire can be arranged along the inner wall or the outer wall.

[0040] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the hot air circulation device 300 further includes a filter 340, which is disposed below the outlet of the heating tube 330. In the embodiment of the present application, the filter 340 is a 100-level high temperature resistant high efficiency filter 340, which can withstand high temperatures and filter efficiently to ensure the overall cleanliness of the furnace body 100.

[0041] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the glass drying tunnel furnace further includes a heating lamp board 400, which is disposed below the filter 340. The heating lamp board 400 is, for example, an infrared lamp tube board, which irradiates and heats the glass product 500 to improve the drying efficiency.

[0042] In some embodiments of the present application, the wind wheel 311 is a multi-blade wind wheel 311. The heating tube 330 is a stainless steel heating tube 330, on which an electric heating wire is arranged. The circulating wind formed by the rotation of the multi-blade wind wheel 311 is divided into multiple separate airflows by the air guide baffle 3221, and flows through different areas in the stainless steel heating tube 330, and is evenly, fully and efficiently heated, with higher thermal efficiency.

[0043] In some embodiments of the present application, Figure 4As shown in the three-dimensional appearance diagram, the furnace body 100 of the embodiment of the present application includes an outer shell 130, and an interlayer plate is arranged on the inner side of the outer shell 130, and an insulation layer is arranged between the interlayer plate and the outer shell 130 to keep warm and improve thermal efficiency. Among them, the insulation layer can be an insulation plate, or it can be a filled insulation layer formed by filling insulation material. The furnace body 100 is also provided with a frame 110 and a supporting assembly 120. The frame 110 is used to achieve overall support. The supporting assembly 120 includes a rotating roller for supporting a conveyor belt or other transport device 200. The transport device 200 enters and exits the furnace body 100 from the inlet and outlet at the upper edge of the supporting assembly 120. In this embodiment, structures such as the hot air circulation device 300 and the heating lamp board 400 are all located above the supporting assembly 120.

[0044] In the embodiment of the present application, the drying process of the glass product 500 in the furnace body 100 is as follows: Figure 2 The line arrows in the furnace body 100 indicate the airflow directions of the two hot air cycles, and the hollow arrows outside the furnace body 100 indicate the direction in which the transport device 200 transports the glass product 500 .

[0045] like Figure 2 As shown, the feeding assembly is installed on the frame 110. After feeding, the glass product 500 is transported into the furnace body 100 through the transport device 200, and the hot air circulation device 300 in the furnace body 100 heats and dries the glass product 500. The motor 310 of the hot air circulation device 300 drives the multi-wing wind wheel 311 to rotate, so that the air in the furnace body 100 flows. The multi-wing wind wheel 311 blows the airflow to the stainless steel heating tube 330 for heating. After the heated hot air flow is filtered by the hundred-level high-temperature resistant high-efficiency filter 340, it blows to the heating lamp board 400 (i.e., the infrared lamp tube board), and finally heats and dries the glass product 500. Among them, the hot air circulation device 300 is symmetrically designed, so that the airflow inside the furnace body 100 forms opposite circulation directions. When it bakes the glass product 500, there will be two corresponding airflows in different directions passing through, so that the front and rear surfaces of the glass product 500 are both convectively dried, so that the baking can be more comprehensive and the drying efficiency can be improved.

[0046] In summary, the glass drying tunnel furnace of the present application includes at least two hot air circulation devices arranged on the top of the furnace body, and the hot air circulation devices include: a blowing component, a flow guide component and a heating component, the blowing component forms a circulating airflow through the flow guide component, and the heating component heats the circulating airflow to form a hot air circulation for drying the glass product; wherein, at least two hot air circulation devices are arranged in different directions, forming at least two hot air circulations in different directions in the furnace body. Thus, through the present application, after the glass products are transported into the glass drying tunnel furnace, they can be subjected to hot air circulation from at least two directions in the furnace body, so that the glass products are dried by hot air more comprehensively, the thermal efficiency of the glass drying tunnel furnace is improved, and the problems of poor hot air circulation and poor drying efficiency of traditional tunnel furnaces are overcome.

[0047] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A glass drying tunnel furnace, comprising a furnace body (100), wherein a transport device (200) for transporting glass products (500) is arranged at the middle and lower part of the furnace body (100), characterized in that: Also includes: At least two hot air circulation devices (300) arranged on the top of the furnace body (100); The hot air circulation device (300) comprises: an air blowing component, a flow guiding component and a heating component, wherein the air blowing component forms a circulating airflow through the flow guiding component, and the heating component heats the circulating airflow to form a hot air circulation for drying the glass product (500); Wherein, the at least two hot air circulation devices (300) are arranged in different directions, forming at least two hot air circulations in different directions in the furnace body (100).

2. The glass drying tunnel furnace according to claim 1, characterized in that: The hot air circulation device (300) comprises two symmetrically arranged hot air circulation devices (300), which are symmetrically arranged along the length direction of the furnace body (100) to form hot air circulation in opposite directions.

3. The glass drying tunnel furnace according to claim 2, characterized in that: The air blowing assembly comprises: a motor (310), and a wind wheel (311) arranged on an output shaft of the motor (310); The air guide component comprises: an air inlet (320), a wind wheel cover (321) and an air outlet (322) which are connected in sequence, and the wind wheel cover (321) is arranged to surround the outside of the wind wheel (311); the air inlets (320) of the two hot air circulation devices (300) are arranged toward the front wall and the rear wall of the furnace body (100), respectively, and the air outlets (322) of the two hot air circulation devices (300) are arranged to face each other.

4. The glass drying tunnel furnace according to claim 3, characterized in that: The heating component is a heating tube (330), the inlet of the heating tube (330) is arranged toward the air outlet (322) of the flow guide component, and the outlet of the heating tube (330) is arranged toward the bottom of the furnace body (100).

5. The glass drying tunnel furnace according to claim 4, characterized in that: The air guide assembly further comprises a plurality of air guide baffles (3221) arranged in parallel, wherein the air guide baffles (3221) are arranged at the air outlet (322), and the air guide baffles (3221) guide the circulating airflow into the heating tube (330).

6. The glass drying tunnel furnace according to claim 5, characterized in that: The air guide baffle (3221) is a movable mechanism, and the air guide component further comprises a driving mechanism, wherein the driving mechanism is connected to the air guide baffle (3221) and periodically changes the direction of the air guide baffle (3221).

7. The glass drying tunnel furnace according to claim 4, characterized in that: The hot air circulation device (300) further comprises a filter (340), and the filter (340) is arranged below the outlet of the heating pipe (330).

8. The glass drying tunnel furnace according to claim 7, characterized in that: The glass drying tunnel furnace further comprises a heating lamp panel (400), and the heating lamp panel (400) is arranged below the filter (340).

9. The glass drying tunnel furnace according to claim 4, characterized in that: The wind wheel (311) is a multi-wing wind wheel (311); the heating tube (330) is a stainless steel heating tube (330) on which an electric heating wire is arranged.

10. The glass drying tunnel furnace according to claim 1, characterized in that: The furnace body (100) comprises an outer shell (130), an inner side of the outer shell (130) is provided with an interlayer plate, and an insulation layer is provided between the interlayer plate and the outer shell (130).

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