Vault type imine furnace for drying polyimide film

Abstract

The vault type imine furnace comprises a furnace body, an exhaust port is formed in the middle of the top of the furnace body, a plurality of carrier rollers are rotationally installed in the furnace body, an electric heating rod is arranged in the furnace body, and arc-shaped flow guide plate assemblies are installed at the junctions of the left side wall, the right side wall, the front side wall and the rear side wall in the furnace body and a top cover. The arc-shaped flow guide plate assembly comprises a middle arc-shaped plate, fixing plates are arranged on the two sides of the arc-shaped plate, and the fixing plates are fixed to the inner wall of the furnace body through bolts. The end, not connected with the arc-shaped plate, of the fixing plate is provided with an inclined face which is in butt joint with the inner wall of the furnace body. According to the utility model, the furnace body of the imine furnace is modified, and the arc-shaped guide plate components are arranged at the junctions of the side walls, the front and rear wall plates and the top cover to form a vault, so that the vortex of wind at corners is reduced, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PI film preparation, especially to an arch top type imine furnace for drying polyimide film. BACKGROUND

[0002] The polyimide film imidization furnace is an indispensable equipment for PI film manufacturing, and the imine furnace is a rectangular electric furnace with an exhaust passage on the top.

[0003] However, in actual production, the furnace body is rectangular, and the top cover forms a right angle with the side walls and the front and rear wall plates, so that the wind forms a vortex at these positions, and the flow rate is greatly reduced, and the volatile substances cannot be sucked away by the exhaust fan, so that the volatile substances accumulate on the top corners and form a wall, and when the accumulation is too much, it will drip down to the rollers and the film, polluting the film and affecting the quality of the film. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the deficiency of prior art and provides an arch top type imine furnace for drying polyimide film.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An arch top type imine furnace for drying polyimide film comprises a furnace body, an exhaust port is arranged at the middle position of the top of the furnace body, a plurality of rollers are rotatably installed in the furnace body, an electric heating rod is arranged in the furnace body, and an arc-shaped flow guide plate assembly is installed at the junction of the left and right side walls, the front and rear side walls and the top cover in the furnace body.

[0007] The arc-shaped flow guide plate assembly comprises an arc-shaped plate in the middle, and fixed plates are arranged on both sides of the arc-shaped plate.

[0008] One end of the fixed plate, which is not connected to the arc-shaped plate, is provided with an inclined surface, and the inclined surface is in abutment with the inner wall of the furnace body.

[0009] A heat exchanger is arranged on the top of the furnace body, a communication pipe is arranged between the exhaust port and the inner cavity of the heat exchanger, a bent medium pipe is arranged in the inner cavity of the heat exchanger, and an exhaust fan is arranged on the top of the heat exchanger.

[0010] A liquid discharge port is arranged at the lower end of one side wall of the heat exchanger, and a liquid guide plate is arranged in the heat exchanger and inclined upward at the liquid discharge port.

[0011] The utility model has the advantages that the furnace body of the imine furnace is modified, the arc-shaped flow guide plate assembly is installed at the junction of the side walls, the front and rear wall plates and the top cover, an arch top is formed, the vortex of the wind at the corners is reduced, and the production efficiency and the product quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The structure of the present application is shown in the figure.

[0013] In the figure: 1 - furnace body; 2 - exhaust port; 3 - supporting roller; 4 - electric heating rod; 5 - arc-shaped flow guide plate assembly; 6 - heat exchanger; 7 - communication pipe; 8 - bent medium pipe; 9 - exhaust fan; 10 - liquid discharge port; 11 - liquid guide plate; 12 - inclined isolation plate.

[0014] 51 - arc-shaped plate; 52 - fixed plate.

[0015] The present application will be described in detail below with reference to the embodiments of the present application and the accompanying drawings. DETAILED DESCRIPTION

[0016] The principles and features of the present application will be described below with reference to the accompanying drawings, and the embodiments are only used to explain the present application and are not intended to limit the scope of the present application. In the following paragraphs, the present application is described in more detail with examples with reference to the accompanying drawings. The advantages and features of the present application will be more apparent from the following description. It should be noted that the drawings are very simplified and use non-precise proportions, only to facilitate and clarify the purpose of assisting the description of the embodiments of the present application.

[0017] It should be noted that when the assembly is referred to as "fixed to" another assembly, it can be directly on the other assembly or there can be a middle assembly. When a component is considered "connected" to another component, it can be directly connected to another component or there can be a middle component. When a component is considered "disposed on" another component, it can be directly disposed on another component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments:

[0020] As Figure 1As shown, an arch-shaped imine furnace for drying polyimide film includes a furnace body 1, an exhaust port 2, a supporting roller 3, an electric heating rod 4, an arc-shaped flow guide plate assembly 5, a heat exchanger 6, a communication pipe 7, a bent medium pipe 8, an exhaust fan 9, a liquid discharge port 10, a liquid guide plate 11, and an inclined isolation plate 12.

[0021] The furnace body 1 is provided with the exhaust port 2 at the middle position of the top thereof, and the furnace body 1 is rotatably provided with the supporting rollers 3.

[0022] The arc-shaped flow guide plate assembly 5 is installed at the junction of the side wall and the front and rear wall plate and the top cover of the furnace body 1 to form an arch-shaped top, thereby reducing the vortex of air at the corners and improving the production efficiency and product quality.

[0023] The arc-shaped flow guide plate assembly 5 includes an arc-shaped plate 51 in the middle, and fixed plates 52 are arranged on both sides of the arc-shaped plate 51 and fixed on the inner wall of the furnace body 1 by bolts.

[0024] The fixed plates 52 are provided with counterbores corresponding to the positions of the bolts.

[0025] One end of the fixed plate 52, which is not connected to the arc-shaped plate 51, is provided with an inclined surface, which is connected to the inner wall of the furnace body 1 to better guide the flow.

[0026] The furnace body 1 is provided with the heat exchanger 6 at the top thereof, the communication pipe 7 is arranged between the exhaust port 2 and the inner cavity of the heat exchanger 6, the bent medium pipe 8 is arranged in the inner cavity of the heat exchanger 6, and the exhaust fan 9 is arranged at the top of the heat exchanger 6.

[0027] The heat exchanger 6 is provided with the liquid discharge port 10 at the lower end of one side wall thereof, and the liquid guide plate 11 is arranged in the heat exchanger 6 and inclined upward at the liquid discharge port 10.

[0028] The heat exchanger 6 is provided with the inclined isolation plates 12, which are arranged in the heat exchanger 6 and fixed on the inner wall of the heat exchanger 6 at the high end thereof.

[0029] The heat exchanger 6 can recover the heat in the exhaust waste gas, thereby avoiding energy waste.

[0030] The utility model is described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above method, as long as various improvements are made by adopting the method concept and technical solution of the utility model, or the utility model is directly applied to other occasions without improvement, which is within the protection scope of the utility model.

Claims

1. A domed polyimide film drying oven, comprising an oven body (1), an exhaust port (2) located at the center of the top of the oven body (1), a plurality of rollers (3) rotatably mounted inside the oven body (1), and an electric heating rod (4) inside the oven body (1), characterized in that, Arc-shaped guide plate assemblies (5) are installed at the junction of the left and right side walls, front and rear side walls and top cover inside the furnace body (1).

2. The dome-shaped imide oven for drying polyimide films according to claim 1, characterized in that, The arc-shaped guide plate assembly (5) includes an arc-shaped plate (51) in the middle, and fixing plates (52) are provided on both sides of the arc-shaped plate (51). The fixing plates (52) are fixed to the inner wall of the furnace body (1) by bolts.

3. The dome-shaped imide oven for drying polyimide films according to claim 2, characterized in that, The fixing plate (52) has countersunk holes at the positions corresponding to the bolts.

4. The dome-shaped imide oven for drying polyimide films according to claim 3, characterized in that, The end of the fixed plate (52) that is not connected to the arc plate (51) has an inclined surface, which is connected to the inner wall of the furnace body (1).

5. The dome-shaped imide oven for drying polyimide films according to claim 4, characterized in that, A heat exchanger (6) is provided on the top of the furnace body (1), a connecting pipe (7) is provided between the exhaust port (2) and the inner cavity of the heat exchanger (6), a bent medium pipe (8) is provided in the inner cavity of the heat exchanger (6), and an exhaust fan (9) is provided on the top of the heat exchanger (6).

6. The dome-shaped imide oven for drying polyimide films according to claim 5, characterized in that, A drain port (10) is provided at the lower end of one side wall of the heat exchanger (6), and a guide plate (11) is provided at the drain port (10) inside the heat exchanger (6) at an angle upward.

7. A dome-shaped imide oven for drying polyimide films according to claim 6, characterized in that, Several inclined isolation plates (12) are arranged alternately between the bent sections of the bent medium pipe (8) on the left and right inner walls of the heat exchanger (6), and the high end of the inclined isolation plates (12) is fixed on the inner wall of the heat exchanger (6).

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