Waste heat utilization mechanism for glass substrate drying equipment

Abstract

The utility model discloses a waste heat utilization mechanism for glass substrate drying equipment, which comprises a plurality of air guide pipes which are connected to the outer sides of corresponding drying chambers side by side and are respectively connected to corresponding exhaust pipes; the moisture absorption mechanism is detachably mounted on the side, close to the feeding end of the drying chamber, of the exhaust pipe and used for adsorbing and removing moisture in the hot air; the top surface drying assembly comprises an air knife arranged on the upper side of the feeding end of the drying chamber, an air outlet of the air knife is obliquely arranged downwards, and the air knife is connected to the side, close to the feeding end of the drying chamber, of an exhaust pipe through a corresponding exhaust guide pipe and an exhaust fan; and the bottom surface drying assembly comprises an isolation box body arranged on the lower side of the feeding end of the drying chamber, an opening of the isolation box body faces upwards, and the isolation box body is filled with a corresponding heat storage material layer. According to the utility model, the waste heat in the tail gas can be effectively and fully applied to the pre-drying treatment of the top surface and the bottom surface of the LCD glass substrate.

Description

Technical Field

[0001] This utility model relates to the technical field of LCD glass substrate drying equipment, specifically to a waste heat utilization mechanism for glass substrate drying equipment, which can fully utilize the waste heat of the drying exhaust gas after removing moisture to pre-dry the top and bottom surfaces of the LCD glass substrate, thereby significantly improving the drying effect of the LCD glass substrate and increasing resource utilization. Background Technology

[0002] In the fabrication process of liquid crystal display devices, the corresponding LCD glass substrate first needs to be cleaned and dried. Existing drying equipment for LCD glass substrate processing mainly includes a roller conveyor and a drying chamber set on the roller conveyor. A hot air delivery mechanism delivers heated air into the drying chamber to dry the LCD glass substrate that has passed through the drying chamber.

[0003] Since the surfaces of LCD glass substrates have already been cleaned by air blades, their surface moisture content is relatively low. Therefore, the amount of moisture generated during the drying process is relatively small, and most of the drying exhaust gas containing a small amount of moisture is directly discharged. Consequently, the waste heat contained in the exhaust gas generated during the drying process in existing LCD glass substrate drying equipment is rarely fully utilized, resulting in relatively low resource utilization.

[0004] Therefore, the research objective of this utility model is to design a waste heat utilization mechanism for glass substrate drying equipment that can effectively utilize the residual heat in the drying exhaust gas to pre-dry the top and bottom surfaces of LCD glass substrates, thereby significantly improving the drying effect of LCD glass substrates and effectively increasing the utilization rate of resources. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the present invention provides a waste heat utilization mechanism for glass substrate drying equipment, which can effectively solve the technical problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] A waste heat recovery mechanism for a glass substrate drying equipment includes:

[0008] Several air ducts are connected side by side to the outside of the corresponding drying chamber, and the air ducts are respectively connected to the corresponding exhaust pipes;

[0009] A moisture-absorbing mechanism is detachably installed on the side of the exhaust pipe near the feed end of the drying chamber to absorb and remove moisture from the hot air. The side of the exhaust pipe away from the feed end of the drying chamber is closed.

[0010] The top drying assembly includes an air knife disposed on the upper side of the feed end of the drying chamber. The air outlet of the air knife is inclined downwards, and the air knife is connected to the side of the exhaust pipe near the feed end of the drying chamber through a corresponding exhaust duct and exhaust fan.

[0011] The bottom drying assembly includes an isolation box disposed on the lower side of the feed end of the drying chamber, the opening of the isolation box facing upwards and its interior filled with a corresponding heat storage material layer.

[0012] The moisture absorption mechanism includes a moisture-absorbing filter cartridge that is detachably installed on the side of the exhaust pipe near the feed end of the drying chamber, and the moisture-absorbing filter cartridge is filled with a corresponding moisture-absorbing desiccant.

[0013] The exhaust pipe is detachably connected to a corresponding cover plate on the side near the feed end of the drying chamber via a threaded connection, and the moisture-absorbing filter cartridge is detachably connected to the cover plate via a threaded connection.

[0014] The exhaust pipe is provided with an air guide flange with an inner diameter smaller than that of the moisture-absorbing filter cartridge, and the inner end of the moisture-absorbing filter cartridge is closed and abuts against the air guide flange.

[0015] The air ducts are connected to the exhaust ducts via connecting pipes that are closed at both ends.

[0016] A corresponding heat insulation film is fixedly installed on the side wall of the isolation box, and the heat storage material layer is made of granular volcanic rock.

[0017] Advantages of this utility model:

[0018] 1) This utility model includes several air ducts connected side by side to the outside of the drying chamber, which are respectively connected to the corresponding exhaust pipes. A moisture absorption mechanism is detachably installed on the side of the exhaust pipe near the feed end of the drying chamber to absorb and remove moisture from the exhaust gas. Then, the dehumidified hot exhaust gas is drawn out to the air knife set on the feed end side of the drying chamber, so that the dehumidified hot exhaust gas is evenly and quickly swept onto the top surface of the LCD glass substrate that is about to enter the drying operation, so as to pre-dry the top surface of the LCD glass substrate that is about to enter the drying chamber, thereby effectively improving the drying effect of the LCD glass substrate and effectively improving the utilization rate of heat energy.

[0019] 2) There are mostly conveying gaps between the LCD glass substrates entering the drying chamber. Therefore, the dehumidified hot exhaust gas can be blown downwards through the gaps between the LCD glass substrates by the air knife into the heat storage material layer inside the isolation box. The heat storage material layer effectively stores the residual heat of the hot exhaust gas and then diffuses the heat upwards, thereby achieving the pre-drying treatment of the bottom surface of the LCD glass substrate, which can effectively further improve the drying effect of the LCD glass substrate and effectively improve the utilization rate of heat energy.

[0020] 3) This utility model allows the moisture-absorbing filter cartridge containing the moisture-absorbing desiccant material to be detachably installed onto the side of the exhaust pipe near the feed end of the drying chamber via a cover plate, facilitating the replacement of the moisture-absorbing desiccant. The exhaust pipe of this utility model is provided with a guide flange with an inner diameter smaller than that of the moisture-absorbing filter cartridge. After installation, the inner end of the moisture-absorbing filter cartridge closes and abuts against the guide flange, thereby ensuring that all the hot air containing moisture passes through the moisture-absorbing filter cartridge and comes into contact with the moisture-absorbing desiccant before entering the air knife for discharge, thus effectively ensuring the practical effect of this utility model. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model when the drying chamber is removed.

[0023] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0024] Figure 4 This is a cross-sectional view of the moisture-absorbing mechanism.

[0025] In the attached diagram: 1. Air duct; 2. Drying chamber; 3. Exhaust duct; 4. Moisture absorption mechanism; 401. Moisture absorption filter cartridge; 402. Moisture absorption desiccant; 403. Cover plate; 5. Top surface drying assembly; 5. Air knife; 501. Exhaust duct; 502. Exhaust fan; 503. Bottom surface drying assembly; 6. Isolation box; 601. Heat storage material layer; 602. Air guide flange; 7. Connecting pipe; 8. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0027] refer to Figure 1-4 A waste heat recovery mechanism for a glass substrate drying equipment includes:

[0028] Several air ducts 1 are connected side by side to the outside of the corresponding drying chamber 2, and the air ducts 1 are respectively connected to the corresponding exhaust pipes 3;

[0029] The moisture absorption mechanism 4 is detachably installed on the side of the exhaust pipe 3 near the feed end of the drying chamber 2, and is used to absorb and remove moisture in the hot air. The side of the exhaust pipe 3 away from the feed end of the drying chamber 2 is closed.

[0030] The top drying assembly 5 includes an air knife 501 disposed on the upper side of the feed end of the drying chamber 2. The air outlet of the air knife 501 is inclined downward, and the air knife 501 is connected to the side of the exhaust pipe 3 near the feed end of the drying chamber 2 through a corresponding exhaust duct 502 and an exhaust fan 503.

[0031] The bottom drying assembly 6 includes an isolation box 601 disposed on the lower side of the feed end of the drying chamber 2. The opening of the isolation box 601 faces upward and its interior is filled with a corresponding heat storage material layer 602.

[0032] This utility model includes several air ducts 1 connected side by side to the outside of the drying chamber 2, which are respectively connected to corresponding exhaust ducts 3. A moisture absorption mechanism 4 is detachably installed on the side of the exhaust duct 3 near the feed end of the drying chamber 2 to absorb and remove moisture from the exhaust gas. The dehumidified hot exhaust gas is then drawn to an air knife 501 located on the feed end side of the drying chamber 2, so that the dehumidified hot exhaust gas is uniformly and quickly swept onto the top surface of the LCD glass substrate that is about to enter the drying operation, thereby pre-drying the top surface of the LCD glass substrate that is about to enter the drying chamber, thus effectively improving the drying effect of the LCD glass substrate and effectively improving the utilization rate of heat energy.

[0033] Since there are conveying gaps between most of the LCD glass substrates entering the drying chamber 2, the dehumidified hot exhaust gas can be blown downwards through the air knife 501 along the gaps between the LCD glass substrates into the heat storage material layer 602 inside the isolation box 601. The heat storage material layer 602 effectively stores the residual heat of the hot exhaust gas and then diffuses the heat upwards, thereby achieving pre-drying treatment of the bottom surface of the LCD glass substrate, which effectively improves the drying effect of the LCD glass substrate and effectively improves the utilization rate of heat energy.

[0034] The moisture absorption mechanism 4 includes a moisture-absorbing filter cartridge 401 detachably installed on the side of the exhaust pipe 3 near the feed end of the drying chamber 2. The moisture-absorbing filter cartridge 401 is filled with a corresponding moisture-absorbing desiccant 402. A corresponding cover plate 403 is detachably connected to the side of the exhaust pipe 3 near the feed end of the drying chamber 2 via a threaded connection. The moisture-absorbing filter cartridge 401 is detachably connected to the cover plate 403 via a threaded connection. The exhaust pipe 3 is provided with an air guide flange 7 with an inner diameter smaller than that of the moisture-absorbing filter cartridge 401. The inner end of the moisture-absorbing filter cartridge 401 closes and abuts against the air guide flange 7.

[0035] This invention allows for the detachable installation of a moisture-absorbing filter cartridge 401, containing a moisture-absorbing desiccant 402, onto the side of the exhaust pipe 3 near the feed end of the drying chamber 2 via a cover plate 403. This facilitates the replacement of the moisture-absorbing desiccant 402. The exhaust pipe 3 of this invention has a guide flange 7 with an inner diameter smaller than that of the moisture-absorbing filter cartridge 401. After installation, the inner end of the moisture-absorbing filter cartridge 401 closes and abuts against the guide flange 7, ensuring that all hot air carrying moisture passes through the moisture-absorbing filter cartridge 401 and comes into contact with the moisture-absorbing desiccant 402 before entering the air knife 501 for discharge. This effectively ensures the practical effect of this invention.

[0036] The air duct 1 is connected to the exhaust duct 3 through a connecting pipe 8 with both ends sealed. A corresponding heat insulation film is fixedly installed on the side wall of the isolation box 601, and the heat storage material layer 602 is made of granular volcanic rock.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A waste heat recovery mechanism for a glass substrate drying equipment, characterized in that, include: Several air ducts (1) are connected side by side to the outside of the corresponding drying chamber (2), and the air ducts (1) are respectively connected to the corresponding exhaust pipes (3); The moisture absorption mechanism (4) is detachably installed on the side of the exhaust pipe (3) near the feed end of the drying chamber (2) to absorb and remove moisture in the hot air. The side of the exhaust pipe (3) away from the feed end of the drying chamber (2) is closed. The top drying assembly (5) includes an air knife (501) disposed on the upper side of the feed end of the drying chamber (2). The air outlet of the air knife (501) is inclined downward, and the air knife (501) is connected to the side of the exhaust pipe (3) near the feed end of the drying chamber (2) through a corresponding exhaust duct (502) and exhaust fan (503). The bottom drying assembly (6) includes an isolation box (601) disposed on the lower side of the feed end of the drying chamber (2), the opening of the isolation box (601) facing upward and its interior filled with a corresponding heat storage material layer (602).

2. The waste heat utilization mechanism for a glass substrate drying equipment according to claim 1, characterized in that, The moisture absorption mechanism (4) includes a moisture absorption filter cartridge (401) that is detachably installed on the side of the exhaust pipe (3) near the feed end of the drying chamber (2), and the moisture absorption filter cartridge (401) is filled with a corresponding moisture absorption desiccant (402).

3. The waste heat utilization mechanism for a glass substrate drying equipment according to claim 2, characterized in that, The exhaust pipe (3) is detachably connected to a corresponding cover plate (403) on the side near the feed end of the drying chamber (2) by a threaded connection, and the moisture-absorbing filter cartridge (401) is detachably connected to the cover plate (403) by a threaded connection.

4. The waste heat utilization mechanism for a glass substrate drying equipment according to claim 3, characterized in that, The exhaust pipe (3) is provided with an air guide flange (7) with an inner diameter smaller than that of the moisture-absorbing filter cartridge (401), and the inner end of the moisture-absorbing filter cartridge (401) is closed and abuts against the air guide flange (7).

5. The waste heat utilization mechanism for a glass substrate drying equipment according to claim 1, characterized in that, The air duct (1) is connected to the exhaust duct (3) through a connecting pipe (8) with both ends closed.

6. The waste heat utilization mechanism for a glass substrate drying equipment according to claim 1, characterized in that, A corresponding heat insulation film is fixedly installed on the side wall of the isolation box (601), and the heat storage material layer (602) is made of granular volcanic rock.

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