CN202671402U - Compressed air quenching section special for ultrathin toughened glass production line - Google Patents

Abstract

The utility model relates to a compressed air quenching section special for an ultrathin toughened glass production line. The compressed air quenching section comprises a quenching air grid section, wherein a high-speed cooling air grid of a compressed air quenching device in the quenching section is divided into an upper air grid and a lower air grid; an upper air inlet and a lower air inlet in the upper air grid and the lower air grid are communicated with a compressed air cooling medium system respectively; and outlets of upper and lower radiating channels of the upper and lower air grids are provided with an upper exhaust fan and a lower exhaust fan respectively to extract and exhaust air for an active air exhaust system of a high-pressure section. The compressed air quenching section has the advantages that waste hot air can be exhausted quickly while hot air which wraps glass bursts in the air grids, so that the loss of energy consumption is reduced greatly; and compressed air is used as a cooling medium, the flow speed is high, and the pressure is high, so that the cooling capacity of toughened glass is high, and a toughened effect is good.

Description

Compressed air quenching section for ultra-thin tempered glass production line

technical field

The utility model relates to a special compressed air quenching section of an ultra-thin tempered glass production line capable of continuously tempering ultra-thin glass with a thickness below 2.5 mm and the tempering standard can meet the requirements of the national building material tempered glass, belonging to the field of tempered glass production line manufacturing.

Background technique

The traditional continuous tempering furnace is mainly composed of five parts: loading table, preheating section, heating furnace, high pressure section, deceleration section, cooling section and unloading table; plus blower, bellows and air duct, electrical control system and computer terminal etc. facility. The original glass is put into the furnace from the loading table, and goes through the preheating section. Then to the heating section. Heating to a temperature suitable for tempering, and then entering the strengthening section for uniform and rapid quenching, and then entering the unloading table, from which the unloading table can be unloaded. The whole process is automatically controlled by the microcomputer. The quenching process uses the air output by the blower. Because of its low pressure, slow flow rate and high temperature, the number of cooling fans increases, thereby increasing energy consumption and reducing tempering efficiency. Its shortcomings: first, due to insufficient cooling capacity, it is impossible to temper ultra-thin glass; second, the transmission stability and synchronization of the glass conveying mechanism are poor, and it is not easy to detach, and the ability to deal with emergencies is insufficient; Entering the furnace and moving forward will cause the temperature of the glass head to be too high. Adjusting the temperature in the furnace will have little effect on the glass, resulting in uneven heating temperature on the heated glass surface and the problem of changing the length of the front and rear sides; The roller conveying roller in the tempering furnace is in line contact with the glass, and the distance between the two rollers is relatively large, which cannot ensure that the heated glass will not be deformed. There is a large gap at the matching place, which will take away the heat of the glass surface in motion, so that the temperature of the glass in the glass tempering furnace has to be increased, resulting in increased energy consumption and a decrease in the quality of the glass surface; six is quenching The section of the air grille is passive heat dissipation, completely relying on the wind pressure provided by the air grille to squeeze the hot air away, causing the hot air to stay for a long time, heat is accumulated in the air grille itself, and the temperature of the air grille is high; Pressured air, this kind of medium has high temperature, low pressure, and slow flow rate, resulting in insufficient cooling capacity.

Utility model content

Design purpose: To avoid the deficiencies in the background technology, to design a special compressed air quenching section of the ultra-thin tempered glass production line that can continuously temper ultra-thin glass with a thickness below 2.5mm and whose tempering standard can meet the requirements of the national building material tempered glass .

Design scheme: In order to achieve the above design purpose. 1. The outlet of the glass tempering furnace is a convex nozzle channel, and the design that the outlet of the convex nozzle channel is opposite to the socket inlet of the quenching device is one of the technical characteristics of the utility model. The purpose of doing this is: because the space of the convex nozzle channel is smaller than that of the glass tempering furnace cavity, the gas injection pipe valve is opened, forcing the high-temperature air flow to form an accelerated jet in the convex nozzle channel, which can always cover the heated ultra-thin glass. The glass is rushed into the quenching device together, which not only avoids the loss of heat on the glass surface, but also ensures the quality of the tempered glass, and does not need to deliberately increase the glass heating temperature, reducing energy consumption. 2. It is the second technical feature of the utility model that the heat dissipation passages on the upper air grille and the lower air grille of the quenching device are connected to each other, and the outlets of the upper and lower heat dissipation passages are respectively equipped with an upper fan and a lower fan. The purpose of doing this is: because the upper fan and the lower fan on the upper and lower grilles form a negative pressure suction to the grill cavity, it can not only quickly remove the high-temperature heat in the grill cavity, but also can Greatly shorten the residence time of hot air in the air grille, avoid heat accumulation in the air grille. 3. The quenching medium adopts the design of compressed air quenching, which is the seventh technical feature of the utility model. The purpose of this is to use compressed air as the cooling medium, because the compressed air has the characteristics of high pressure, high flow rate and low temperature, so it has stronger cooling capacity and meets the needs and quality of ultra-thin glass tempering.

Technical solution: A special compressed air quenching section for an ultra-thin tempered glass production line, including a quenching air grille section. The upper and lower air inlets in the middle are respectively connected with the compressed air cooling medium system.

Compared with the background technology, the utility model has the following advantages: firstly, the waste hot air can be quickly discharged while the hot air wrapping the glass rushes into the air grille, which greatly reduces the loss of energy consumption; secondly, the cooling medium adopts compression Air, with a higher flow rate and higher pressure, makes the tempered glass have a stronger cooling capacity and the tempering effect is the best.

Description of drawings

Figure 1 is a schematic diagram of the local structure of the ultra-thin tempered glass heating furnace and quenching installation section.

Figure 2 is a schematic structural diagram of the quenching section.

Fig. 3 is a structural schematic diagram of a quenching device.

Figure 4 is a schematic diagram of the special compressed air quenching section of the ultra-thin tempered glass production line.

Detailed ways

Embodiment 1: with reference to accompanying drawing 1-4. A compressed air quenching section dedicated to an ultra-thin tempered glass production line, including a quenching air grid section 4, the high-speed cooling air grid of the compressed air quenching device in the quenching section 4 is divided into an upper air grid 401 and a lower air grid 403, and the upper and lower air grids The upper and lower air inlets in the grid are respectively connected with the compressed air cooling medium system 405-410, and the outlets of the upper and lower heat dissipation channels of the upper and lower air grids are respectively equipped with an upper exhaust fan 402 and a lower exhaust fan 404, which are exhausted by the active exhaust system of the high pressure section. wind. The roller conveying rollers in the quenching device 4 are air-cooled cooling rollers. The compressed air cooling medium system is composed of upper and lower compressed air cooling medium subsystems, and the air inlets of the upper and lower compressed air cooling medium subsystems are respectively connected to the air inlets of the high-speed cooling type upper air grid 401 and lower air grid 403 . The upper compressed air cooling medium subsystem is composed of an upper air compressor 405, an upper dryer 406, and an upper air storage tank 407, the outlet of the upper air compressor 405 is connected to the inlet of the dryer 406, and the outlet of the upper dryer 406 is connected to the gas storage The inlet of the tank 407, the outlet of the upper air storage tank 407 is connected to the inlet of the upper air grid 401; the lower compressed air cooling medium subsystem is composed of the lower air compressor 408, the lower dryer 409, and the lower air storage tank 410, and the outlet of the lower air compressor 408 Connect the drier 409 inlet, the lower drier 409 outlet connects the air storage tank 410 inlet, and the lower air storage tank 410 outlet connects the air grille 403 inlet. The quenching method of the special compressed air quenching section of its ultra-thin tempered glass production line, when the heated ultra-thin glass comes out of the glass tempering furnace 3, the high-temperature air in the glass tempering furnace 3 rushes out to the exit of the glass tempering furnace 3 and will The heated ultra-thin glass is wrapped in the high-temperature airflow and rushed into the quenching section 4 for quenching. The air nozzle in the compressed air quenching device located in the quenching section ejects high-speed compressed cooling air. Under the action of compressed air , the flow rate is higher, the pressure is higher, the temperature is lower, the cooling effect of the cooled glass is the most obvious, the energy consumption is the lowest, and the temperature required for the glass tempering quality is the best.

Embodiment 2: On the basis of Embodiment 1, the upper air compressor 405 and the lower air compressor 408 share a compressed air source, the upper dryer 406 and the lower dryer 409 share a dryer, and the upper air storage tank 407 Share an air storage tank with the lower air storage tank 410, the outlet of the shared compressed air source is connected to the inlet of the shared dryer, the outlet of the shared dryer is connected to the inlet of the shared air storage tank, and the outlet of the shared air storage tank is respectively connected to the inlet of the air grid 401 and the 403 inlets of the lower air grille.

Embodiment 3: On the basis of Embodiment 1, the upper exhaust fan 402 and the lower exhaust fan 404 of the heat dissipation channel on the upper air grid 401 and the lower air grid 403 of the quenching device 4 discharge the hot air flow in the air grid at a high speed, so as to prevent the glass surface from forming The hot air cushion hinders the cooling speed and quenches and tempers the heated ultra-thin glass.

What needs to be understood is: although the above-mentioned embodiments have done more detailed text descriptions to the design ideas of the present utility model, these text descriptions are only simple text descriptions to the design ideas of the present utility model, rather than limitations to the design ideas of the present utility model. Any combination, rack addition or modification that does not exceed the design concept of the present utility model falls within the protection scope of the present utility model.

Claims (6)

1. A compressed air quenching section dedicated to an ultra-thin tempered glass production line, including a quenching air grid section (4), characterized in that: the high-speed cooling air grid section of the compressed air quenching device in the quenching section (4) The upper air grid (401) and the lower air grid (403), the upper and lower air inlets in the upper and lower air grids are respectively connected with the compressed air cooling medium system (405-410). 2. The special compressed air quenching section of the ultra-thin tempered glass production line according to claim 1, characterized in that: the outlets of the upper and lower heat dissipation channels of the upper and lower air grilles are respectively equipped with an upper fan (402) and a lower fan (404) , to extract and exhaust the active exhaust system of the high pressure section. 3. The special compressed air quenching section of the ultra-thin tempered glass production line according to claim 1, characterized in that: the roller conveying rollers in the quenching device (4) are air-cooled cooling rollers. 4. The special compressed air quenching section of the ultra-thin tempered glass production line according to claim 1, characterized in that: the compressed air cooling medium system is composed of upper and lower compressed air cooling medium subsystems, and the upper and lower two compressed air cooling The air inlets of the cooling medium subsystem are respectively connected to the air inlets of the high-speed cooling type upper air grille (401) and the lower air grille (403). 5. The special compressed air quenching section of the ultra-thin tempered glass production line according to claim 4, characterized in that: the upper compressed air cooling medium subsystem consists of an upper air compressor (405), an upper dryer (406), The upper air storage tank (407) is formed, the outlet of the upper air compressor (405) is connected to the inlet of the dryer (406), the outlet of the upper dryer (406) is connected to the inlet of the air storage tank (407), and the upper air storage tank (407) The outlet is connected to the inlet of the upper air grid (401); the lower compressed air cooling medium subsystem is composed of the lower air compressor (408), the lower dryer (409), the lower air storage tank (410), and the lower air compressor (408) The outlet is connected to the inlet of the dryer (409), the outlet of the lower dryer (409) is connected to the inlet of the gas storage tank (410), and the outlet of the lower gas storage tank (410) is connected to the inlet of the lower air grill (403). 6. The special compressed air quenching section of the ultra-thin tempered glass production line according to claim 4 or 5, characterized in that: the upper air compressor (405) and the lower air compressor (408) share a compressed air source, The upper dryer (406) and the lower dryer (409) share a dryer, the upper air storage tank (407) and the lower air storage tank (410) share an air storage tank, and the outlet of the common compressed air source is connected to the shared dryer The inlet and outlet of the shared dryer are connected to the inlet of the shared air storage tank, and the outlet of the shared air storage tank is respectively connected to the inlet of the air grill (401) and the inlet of the lower air grill (403) through a tee.

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