High-efficiency energy-saving glass toughening furnace

Abstract

The utility model relates to glass processing equipment technical field, concretely is a kind of high -efficient energy -conserving glass toughening furnace, including bearing table, the surface of bearing table is provided with shell, the inner chamber of shell is provided with infrared heater, the surface of shell is provided with first flue, and one end of first flue is provided with air preheater, and one end of air preheater is equipped with hot air pipe, and the other end of hot air pipe is equipped with preheating chamber, and the both ends surface of preheating chamber is fixedly connected with fixed plate, and the surface of fixed plate is rotatably connected with two cleaning rollers;Beneficial effects are that: by air preheater, cold air is preheated using the high-temperature flue gas heat discharged by first flue, and then the preheated hot air is transported to preheating chamber through hot air pipe, the glass entering the toughening furnace is preheated, the utilization efficiency of energy is improved, the surface of preheating chamber is provided with cleaning roller, the surface of glass can be cleaned before entering preheating chamber, remove dust, chippings and other impurities, improve product quality.

Description

Technical Field

[0001] This utility model relates to the field of glass processing equipment technology, specifically to a high-efficiency and energy-saving glass tempering furnace. Background Technology

[0002] Glass tempering equipment uses a technique of heating and then rapidly cooling flat glass to create compressive stress on the surface and tensile stress inside the glass, thereby increasing the glass's strength.

[0003] In existing technology, glass tempering furnaces typically consist of a furnace body, a heating system, a cooling system, a control system, and a transmission component. During use, the glass enters the furnace body through the transmission component. The heating system radiates heat to the glass surface, ensuring uniform heating. After heating is complete, a large amount of flue gas generated inside the furnace is discharged into the external environment through an exhaust pipe. Then, the transmission component transports the glass to the cooling system, causing the glass surface temperature to drop rapidly. After cooling, the glass finally becomes tempered glass.

[0004] However, the flue gas generated by the heating system to heat the glass carries a large amount of heat, which is directly discharged through the exhaust pipe, resulting in a large waste of thermal energy and low energy utilization efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency and energy-saving glass tempering furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving glass tempering furnace, including a support platform, a shell provided on the surface of the support platform, an infrared heater provided in the inner cavity of the shell, a first exhaust pipe provided on the surface of the shell, an air preheater provided at one end of the first exhaust pipe, a hot air pipe installed at one end of the air preheater, a preheating chamber installed at the other end of the hot air pipe, and fixed plates fixedly connected to both ends of the preheating chamber, with two cleaning rollers rotatably connected to the surface of the fixed plates.

[0007] Preferably, a cold air pipe is fixedly connected to one end of the surface of the air preheater, an induced draft fan is fixedly connected to the other end of the cold air pipe, and a second exhaust pipe is fixedly connected to the surface of the air preheater.

[0008] Preferably, the preheating chamber is connected to one end of the hot air pipe, the inner surface of the preheating chamber is provided with an insulation layer, the surface of the insulation layer is provided with a temperature sensor, and a motor is fixedly connected to one side surface of the preheating chamber.

[0009] Preferably, the surface of the support platform is rotatably connected to multiple transmission rollers, the preheating chamber is fixedly connected to one side of the top of the support platform, the surface of the preheating chamber is provided with a feed inlet, the fixed plate is fixedly connected to both sides of the feed inlet, and the surface of the fixed plate is rotatably connected to two sets of shafts.

[0010] Preferably, each set of shafts has two shafts, and the surfaces of the two shafts on the same side are respectively fixedly connected to a driving sprocket and a driven sprocket, and a chain meshes with the surfaces of the driving sprocket and the driven sprocket.

[0011] Preferably, one end of a shaft extends through the fixing plate to the top surface of the preheating chamber and is connected to the output end of the motor.

[0012] Preferably, two cleaning rollers are installed between each set of shafts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The high-efficiency and energy-saving glass tempering furnace proposed in this utility model uses the heat of high-temperature flue gas discharged from the first exhaust pipe to preheat cold air through an air preheater. The preheated hot air is then transported to the preheating chamber through a hot air pipe to preheat the glass entering the tempering furnace, thereby improving the energy utilization efficiency.

[0015] The surface of the preheating chamber is equipped with two rotating cleaning rollers, which can clean the surface of the glass before it enters the preheating chamber, removing dust, debris and other impurities, thus preventing impurities from affecting the tempering quality of the glass and improving product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a half-sectional schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a half-sectional schematic diagram of the preheating mechanism structure of this utility model;

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the cleaning mechanism of this utility model.

[0021] In the diagram: 1. Support platform; 2. Shell; 3. Preheating chamber; 4. Transfer roller; 5. Exhaust fan; 6. Cold air pipe; 7. First exhaust pipe; 8. Air preheater; 9. Second exhaust pipe; 10. Hot air pipe; 11. Infrared heater; 12. Cleaning roller; 13. Motor; 14. Insulation layer; 15. Temperature sensor; 16. Shaft; 17. Fixing plate; 18. Chain; 19. Drive sprocket; 20. Driven sprocket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1

[0024] Please see Figures 1 to 2 This utility model provides a technical solution: a high-efficiency and energy-saving glass tempering furnace, including a support platform 1, a shell 2 on the surface of the support platform 1, an infrared heater 11 in the inner cavity of the shell 2, the power range of the infrared heater 11 is 10-20kW, the infrared heater 11 is located above the inner cavity of the shell 2, the infrared heater 11 emits infrared rays, enabling the glass to quickly absorb heat and heat up, a first exhaust pipe 7 on the surface of the shell 2, an air preheater 8 at one end of the first exhaust pipe 7, a hot air pipe 10 installed at one end of the air preheater 8, a preheating chamber 3 installed at the other end of the hot air pipe 10, a fixing plate 17 fixedly connected to both ends of the preheating chamber 3, and two cleaning rollers 12 rotatably connected to the surface of the fixing plate 17;

[0025] The air preheater 8 uses the heat from the high-temperature flue gas discharged from the first exhaust pipe 7 to preheat the cold air. The preheated hot air is then transported to the preheating chamber 3 through the hot air pipe 10 to preheat the glass entering the tempering furnace, thereby improving energy utilization efficiency. Two rotating cleaning rollers 12 are installed on the surface of the preheating chamber 3 to clean the surface of the glass before it enters the preheating chamber 3, removing dust, debris and other impurities, thus preventing impurities from affecting the tempering quality of the glass and improving product quality.

[0026] Example 2

[0027] Please see Figures 1 to 4Based on the first embodiment, in order to recover waste heat, a cold air pipe 6 is fixedly connected to one end of the surface of the air preheater 8, and an induced draft fan 5 is fixedly connected to the other end of the cold air pipe 6. The induced draft fan 5 and the cold air pipe 6 can continuously send cold air into the air preheater 8, and then exchange heat with the high temperature flue gas discharged from the first exhaust pipe 7.

[0028] A second exhaust pipe 9 is fixedly connected to the surface of the air preheater 8. The function of the second exhaust pipe 9 is to discharge the flue gas whose temperature has decreased after heat exchange. The preheating chamber 3 is connected to one end of the hot air pipe 10. The hot air pipe 10 transports the preheated hot air in the air preheater 8 to the preheating chamber 3. The waste heat in the flue gas can be recovered and utilized through the air preheater 8 to improve energy utilization efficiency. A perforated guide plate is provided at the top of the inner cavity of the preheating chamber 3. The perforated guide plate is located below the outlet of the hot air pipe 10 and is used to evenly disperse the hot air to the glass surface.

[0029] The inner wall surface of the preheating chamber 3 is provided with an insulation layer 14. The insulation layer 14 is made of rock wool with a low thermal conductivity. The insulation layer 14 can reduce the loss of heat from the inside of the preheating chamber 3 to the outside environment. A temperature sensor 15 is provided on the surface of the insulation layer 14. The temperature sensor 15 is used to monitor the temperature inside the preheating chamber 3 in real time and feed the measured temperature data back to the control system, so that the operator can intuitively understand the temperature inside the preheating chamber 3. The temperature sensor 15 and the exhaust fan 5 are linked through an external PLC controller to achieve electrical connection. When the temperature inside the preheating chamber 3 is lower than the set threshold, the exhaust fan 5 increases the wind speed to increase the amount of hot air delivered; when the temperature is higher than the set threshold, the exhaust fan 5 decreases the wind speed to reduce the amount of hot air delivered.

[0030] Example 3

[0031] Please see Figures 1 to 5 Based on Embodiment 2, in order to clean the glass to be processed, a motor 13 is fixedly connected to one side surface of the preheating chamber 3, and multiple transmission rollers 4 are rotatably connected to the surface of the support platform 1. The preheating chamber 3 is fixedly connected to one side of the top of the support platform 1. The surface of the preheating chamber 3 is provided with a feed inlet. A fixing plate 17 is fixedly connected to both sides of the feed inlet. The fixing plate 17 provides space for the shaft 16 to rotate and be installed, ensuring that the shaft 16 and the cleaning roller 12 can maintain a stable working state. The width of the fixing plate 17 is less than the distance between the two transmission rollers 4 to avoid affecting the rotation of the transmission rollers 4.

[0032] Two sets of shafts 16 are rotatably connected to the surface of the fixed plate 17. Each set of shafts 16 has two shafts. The surfaces of the two shafts 16 on the same side are respectively fixedly connected to the driving sprocket 19 and the driven sprocket 20. The two sets of shafts 16 are located at the upper and lower ends of the transmission roller 4, respectively. The surface of the upper shaft 16 is provided with the driving sprocket 19.

[0033] A chain 18 meshes with the surfaces of the drive sprocket 19 and the driven sprocket 20, connecting the drive sprocket 19 and the driven sprocket 20 to achieve synchronous rotation of the two cleaning rollers 12. One end of a shaft 16 extends through the fixed plate 17 to the top surface of the preheating chamber 3 and is connected to the output end of the motor 13. Each set of shafts 16 is equipped with a cleaning roller 12. The surface of the cleaning roller 12 is covered with a nylon soft brush. The upper cleaning roller 12 is at a certain distance from the surface of the transmission roller 4 to avoid affecting the glass being transported. The lower cleaning roller 12 is flush with the upper surface of the transmission roller 4, and the bristles on the surface of the cleaning roller 12 can contact the glass surface to clean it.

[0034] In actual use, the induced draft fan 5 is turned on first, and cold air is introduced into the air preheater 8 through the cold air pipe 6. At the same time, the high temperature flue gas is discharged from the shell 2 through the first exhaust pipe 7 and enters the air preheater 8 to preheat the cold air. The air preheater 8 discharges the cooled low temperature flue gas through the second exhaust pipe 9. The preheated hot air enters the preheating chamber 3 through the hot air pipe 10. The temperature sensor 15 in the preheating chamber 3 monitors the temperature in real time to ensure that the preheating chamber 3 reaches the appropriate preheating temperature.

[0035] The glass is placed on the conveyor roller 4 on the surface of the support platform 1. The glass moves towards the preheating chamber 3 under the action of the conveyor roller 4. When the glass passes through the feed port of the preheating chamber 3, the motor 13 starts. The output end of the motor 13 drives the upper shaft 16 connected to it to rotate. The rotation direction of the shaft 16 is opposite to the rotation direction of the conveyor roller 4. The upper shaft 16 drives the drive sprocket 19 on the surface to rotate. The drive sprocket 19 drives the chain 18 meshed on the surface to rotate. The chain 18 drives the driven sprocket 20 meshed at the lower end and another shaft 16 on its surface to rotate. The rotation of the two sets of shafts 16 drives the cleaning roller 12 to rotate at the same time. The rotating cleaning roller 12 contacts the glass surface and brushes off the dust, debris and other impurities on the glass surface.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving glass tempering furnace, characterized in that: Includes a support platform (1), the surface of which is provided with a housing (2), the inner cavity of which is provided with an infrared heater (11), the surface of which is provided with a first exhaust pipe (7), one end of which is provided with an air preheater (8), one end of which is provided with a hot air pipe (10), the other end of which is provided with a preheating chamber (3), the two ends of which are fixedly connected with a fixing plate (17), and two cleaning rollers (12) are rotatably connected to the surface of the fixing plate (17).

2. The high-efficiency and energy-saving glass tempering furnace according to claim 1, characterized in that: A cold air pipe (6) is fixedly connected to one end of the surface of the air preheater (8), and an induced draft fan (5) is fixedly connected to the other end of the cold air pipe (6). A second exhaust pipe (9) is fixedly connected to the surface of the air preheater (8).

3. The high-efficiency and energy-saving glass tempering furnace according to claim 1, characterized in that: The preheating chamber (3) is connected to one end of the hot air pipe (10). The inner surface of the preheating chamber (3) is provided with a heat insulation layer (14). A temperature sensor (15) is provided on the surface of the heat insulation layer (14). A motor (13) is fixedly connected to one side surface of the preheating chamber (3).

4. The high-efficiency and energy-saving glass tempering furnace according to claim 1, characterized in that: The surface of the support platform (1) is rotatably connected to multiple transmission rollers (4), the preheating chamber (3) is fixedly connected to one side of the top of the support platform (1), the surface of the preheating chamber (3) is provided with a feed inlet, the fixing plate (17) is fixedly connected to both sides of the feed inlet, and the surface of the fixing plate (17) is rotatably connected to two sets of shafts (16).

5. The high-efficiency and energy-saving glass tempering furnace according to claim 4, characterized in that: Each set of shafts (16) has two shafts, and the surfaces of the two shafts (16) on the same side are respectively fixedly connected to a drive sprocket (19) and a driven sprocket (20). A chain (18) meshes with the surfaces of the drive sprocket (19) and the driven sprocket (20).

6. The high-efficiency and energy-saving glass tempering furnace according to claim 5, characterized in that: One end of one of the shafts (16) extends through the fixing plate (17) to the top surface of the preheating chamber (3) and is connected to the output end of the motor (13).

7. The high-efficiency and energy-saving glass tempering furnace according to claim 6, characterized in that: The two cleaning rollers (12) are respectively installed between each set of shafts (16).

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