Air floating type drying box structure

Abstract

An air floating type drying box structure comprises an outer shell, the bottom of the outer shell is connected with a bottom air bellow, a circulating fan is installed at the bottom of the bottom air bellow, the two ends of the bottom air bellow extend upwards to form air outlet channels, a lower air bellow is connected between the air outlet channels, and lower air outlet nozzles are evenly distributed on the surface of the lower air bellow. A plurality of pairs of upper air outlet channels extending upwards are symmetrically connected to the two sides of the lower air box, an upper air box is connected between the upper air outlet channels, the upper air box is of an independent structure and avoids a lower air outlet nozzle, and an upper air outlet nozzle is connected to the bottom of the upper air box. The circulating fan is installed at the bottom of the drying box, a gantry crane and an electric hoist are not needed during overhauling, and maintenance is more convenient; waste gas exhaust from two sides of the air outlet nozzle is changed into waste gas exhaust from the upper part and two sides of the air outlet nozzle, so that the exhaust speed of organic waste gas and volatile matters is improved, the drying effect is improved, the drying efficiency of the drying box is improved by more than 30%, the vehicle speed of a gluing production line is improved by more than 30%, and the content of volatile matters in fabrics is reduced by about 10%.

Description

Technical Field

[0001] The utility model relates to the field of combustion furnace equipment, in particular to an air-floating drying box structure. Background Art

[0002] In the production of insulation boards and copper-clad laminates, impregnating reinforcing materials with resin glue is a widely used production process. For example, glass fiber cloth, wood pulp paper, carbon fiber or cotton cloth are impregnated with vertical glue. Among them, the types of resins include phenolic, epoxy, melamine and other series. In order to effectively impregnate the resin into the reinforcing material, the resin needs to be dissolved and organic solvents such as methanol, acetone, dimethylformamide, etc. need to be added. Then, the resin is adjusted to a glue with a specified viscosity index according to the production process, and then enters the drying oven to be heated at different process temperatures to remove the solvent and low-molecular volatiles in the reinforcing material impregnated with the glue, forming a semi-cured sheet before entering the next process.

[0003] like Figure 4 and Figure 5 As shown, the circulating fan 100 on the existing drying box is installed on the top of the drying box. The circulating fan 100 outlet generates circulating air with a certain wind pressure and air volume. After the circulating air enters the wind box 200, it enters the upper wind box 400 and the lower wind box 500 respectively through the air ducts 300 on both sides. The upper wind box 400 and the lower wind box 500 are both equipped with air nozzles 600. In order to improve the material drying efficiency, the following methods can be adopted in the drying process: a. Take away the solvent and volatiles through high-speed circulating air (hot air); b. Transfer heat to the material through high-speed circulating air (hot air); c. Control the exhaust gas concentration in the drying box by adding a certain amount of fresh hot air, and discharge the mixed air containing organic exhaust gas and volatiles in time.

[0004] According to the existing structure of the drying box, the above-mentioned approaches a and b can be achieved by increasing the power of the circulating fan. However, in item c, the presence of the upper wind box 400 above the material 800 seriously affects the smooth discharge of organic waste gas and volatiles, and they can only be discharged from the areas 700 on both sides of the drying box. Since the circulating fan is arranged on the top of the drying box, maintenance and inspection are inconvenient, and special tooling is required, such as a gantry crane, an electric hoist, etc. In addition, the heat dissipation on the top of the drying box will cause the temperature of the fan motor to rise too high, affecting its service life. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an air-floating drying box structure in view of the deficiencies of the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An air flotation drying box structure comprises an outer shell, a bottom bellows is connected to the bottom of the outer shell, a circulating fan is installed at the bottom of the bottom bellows, air outlet ducts extend upwards at both ends of the bottom bellows, a lower bellows is connected between the air outlet ducts, lower air outlet nozzles are evenly distributed on the surface of the lower bellows, a plurality of pairs of upper air outlet ducts extending upwards are symmetrically connected on both sides of the lower bellows, an upper bellows is connected between the upper air outlet ducts, the upper bellows adopts an independent structure to avoid the lower air outlet nozzles, and the upper bellows are connected to the bottom of the upper bellows.

[0008] Furthermore, the upper air outlets and the lower air outlets are arranged alternately.

[0009] Furthermore, inclined plates are connected around the top of the outer shell, and an exhaust port is installed on the top of the outer shell.

[0010] Compared with the prior art, the air-floating drying box structure of the utility model has the following beneficial effects:

[0011] 1. Install the circulating fan at the bottom of the drying box. During maintenance, there is no need to use a gantry crane or electric hoist, making maintenance more convenient. 2. The exhaust gas is discharged from the top and both sides of the air outlet instead of from both sides of the air outlet, which increases the discharge speed of organic waste gas and volatiles and improves the drying effect. The drying efficiency of the drying box is increased by more than 30%, the speed of the gluing production line is increased by more than 30%, the volatile content in the fabric is reduced by about 10%, and the product quality is improved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a side view of the exhaust gas of the drying box of the utility model;

[0014] Figure 3 This is a front view of the exhaust gas of the drying box of the utility model;

[0015] Figure 4 It is a structural diagram of the original drying oven;

[0016] Figure 5 This is a side view of the original drying oven;

[0017] Among them, 1. outer shell, 2. bottom bellows, 3. air outlet, 4. lower bellows, 5. lower air outlet, 6. upper air outlet, 7. upper bellows, 8. upper air outlet, 9. circulation fan, 10. inclined plate, 11. exhaust port. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present utility model will be described clearly and completely below.

[0019] like Figure 1 to Figure 3As shown, an air flotation drying box structure comprises an outer shell 1, a bottom bellows 2 is arranged at the bottom of the outer shell 1, air outlet ducts 3 are extended upward at both ends of the bottom bellows 2, a lower bellows 4 is connected between the two air outlet ducts 3, the air outlet duct 3 is communicated with the lower bellows 4, and the circulating air is sent to the lower bellows 4, and lower air outlet nozzles 5 are evenly distributed on the surface of the lower bellows 4, and a plurality of pairs of upper air outlet ducts 6 extending upward are symmetrically connected on both sides of the lower bellows 4, and upper bellows 7 are connected between the corresponding upper air outlet ducts 6, and the upper bellows 7 adopts an independent structure, and the upper bellows 7 avoids the lower air outlet nozzle 5, so that the upper part of the lower air outlet nozzle 5 is completely open, and the exhaust gas can be discharged from the upper part and both sides of the lower air outlet nozzle 5, and the upper air outlet nozzle 8 is connected to the bottom of the upper bellows 7, and the upper air outlet nozzle 8 and the lower air outlet nozzle 5 are staggered to blow and dry the material passing through the surface.

[0020] The bottom wind box 2 is provided with a circulating fan 9, which evenly disperses the introduced thermal image and discharges it from the air outlet 3. The circulating fan 9 is installed in the middle of the bottom of the bottom wind box 1. Compared with installing the circulating fan on the top of the drying box before, the maintenance, inspection and replacement of the equipment are very convenient, and only a simple manual transport vehicle is needed.

[0021] The outer shell 1 is connected with inclined plates 10 on all sides. An exhaust port 11 is installed on the outer shell 1. The inclined plates 10 can make the mixed gas of organic waste gas and volatile matter fully mixed in the upper space and smoothly discharged from the exhaust port 11.

[0022] The present invention is not limited to the described embodiments. Those skilled in the art may make some modifications or changes without departing from the spirit and scope of the present invention, that is, within the scope of disclosure. Therefore, the scope of protection of the present invention shall be subject to the scope defined in the claims.

Claims

1. An air flotation drying box structure, characterized in that: It includes an outer shell, the bottom of which is connected to a bottom bellows, a circulating fan is installed at the bottom of the bottom bellows, air outlet ducts extend upwards at both ends of the bottom bellows, a lower bellows is connected between the air outlet ducts, lower air outlet nozzles are evenly distributed on the surface of the lower bellows, a plurality of pairs of upper air outlet ducts extending upwards are symmetrically connected on both sides of the lower bellows, upper bellows are connected between the upper air outlet ducts, the upper bellows adopts an independent structure to avoid the lower air outlet nozzles, and the bottom of the upper bellows is connected to the upper air outlet nozzle.

2. The air flotation drying box structure according to claim 1, characterized in that: The upper air outlets and the lower air outlets are arranged alternately.

3. The air flotation drying box structure according to claim 1, characterized in that: Inclined plates are connected around the upper side of the outer shell, and an air outlet is installed on the upper side of the outer shell.

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