CN212357024U

CN212357024U - Ultra-thin float method electronic glass annealing kiln

Info

Publication number: CN212357024U
Application number: CN201922408273.0U
Authority: CN
Inventors: 刘文瑞; 王保平; 李艳
Original assignee: Bengbu Zhongguangdian Technology Co Ltd
Current assignee: Bengbu Zhongguangdian Technology Co Ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2021-01-15
Anticipated expiration: 2029-12-28

Abstract

The utility model provides an ultra-thin float process electronic glass annealing kiln, it includes annealing kiln sealed cowling (1), its characterized in that: entrance one end in annealing kiln sealed cowling (1) is equipped with two sets ofly and corresponds complex draw gear (2) with glass area (3), is equipped with below the glass area (3) in traction wheel (2) one side and corresponds complex air supporting device (4) with glass area (3), is equipped with temperature control device (6) above glass area (3) in draw gear (2) one side, is equipped with emergent strutting arrangement (5) in one side in addition in air supporting device (4), be equipped with the clearance between strutting arrangement (5) upper end and glass area (3). The utility model discloses simple structure, convenient to use can effectively avoid causing the fish tail to the surface of the active area at glass area middle part when carrying the glass area.

Description

Ultra-thin float method electronic glass annealing kiln

The technical field is as follows:

the utility model relates to the field of float glass production, in particular to an ultra-thin float electronic glass annealing furnace.

Background art:

the glass raw material is melted by a kiln, and enters a return kiln after being formed by a tin bath for annealing. The annealing kiln has the following functions: and (3) uniformly cooling the glass ribbon with the temperature of about 600 ℃ after the tin bath is formed to about 50 ℃ through a temperature control curve. And in this process, if the control by temperature change curve does not have the management and control good, broken piece, burst easily appear in the glass area in the annealing kiln, adopt the cooling tuber pipe in the regulation annealing kiln usually, carry out temperature regulation.

For electronic glass, two sides of the electronic glass close to the length side are invalid areas, and the middle part is an effective area. Alumina is usually adopted in materials of electronic glass, the melting point of the alumina is 2054 ℃, the melting temperature of a kiln is increased, the temperature of the glass taken out of a tin bath is higher than that of common glass by more than 100 ℃, the requirement on temperature control of an annealing kiln is higher, and if a cooling air pipe is adopted for cooling, the glass belt is easy to crack and stress concentration, so that the glass is poor.

For electronic glass, the surface quality requirement is high, the temperature of the glass ribbon after coming out of a tin bath is about 700 ℃, the glass ribbon is in the process of converting from a softening point to an annealing point, the glass ribbon is soft, the glass ribbon is conveyed by adopting a traditional roller, the surface of the glass is easy to scratch in the conveying process, and if air flotation conveying is adopted, the scratch on the surface of the glass ribbon can be effectively reduced.

The utility model has the following contents:

the utility model provides an ultra-thin float electronic glass annealing furnace, which aims to overcome the defects in the prior art.

The application provides the following technical scheme:

the utility model provides an ultra-thin float method electronic glass annealing kiln, it includes annealing kiln sealed cowling, its characterized in that: two groups of traction devices which are correspondingly matched with the glass belts are arranged at the inlet end in the sealing cover of the annealing kiln, an air floating device which is correspondingly matched with the glass belts is arranged below the glass belts at one side of the traction devices, a temperature control device is arranged above the glass belts at one side of the traction devices, a supporting device is arranged at one side of the air floating device, and a gap is arranged between the upper end of the supporting device and the glass belts.

On the basis of the technical scheme, the following further technical scheme is provided:

the air floatation device comprises a fan, a first heater and an air outlet cavity, wherein the fan, the first heater and the air outlet cavity are sequentially communicated through air pipes, and an air outlet with an upward opening is formed in the air outlet cavity.

The temperature control device comprises a second temperature sensor, a second heater correspondingly matched with the second temperature sensor is arranged on one side of the second temperature sensor, and the second temperature sensor and a second heater cable form electric signal connection matching.

The supporting device comprises a support arranged below the glass belt, carrier rollers distributed along the width direction of the glass belt are arranged at the top end of the support in a spanning mode, and a certain gap is formed between the carrier rollers and the glass belt.

Utility model advantage:

the utility model discloses simple structure, convenient to use can effectively avoid causing the fish tail to the surface of the active area at glass area middle part when carrying the glass area.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the arrangement of the support means 5 in fig. 1.

The specific implementation mode is as follows:

as shown in fig. 1 and 2, the ultra-thin float electronic glass annealing furnace comprises an annealing furnace sealing cover 1, wherein a glass ribbon inlet 1a is arranged at one end of the annealing furnace sealing cover 1, and a glass ribbon outlet is arranged at the other end of the annealing furnace sealing cover 1.

A group of traction devices 2 are respectively arranged above and below the side of a glass strip inlet 1a in the annealing kiln sealing cover 1. A set of draw gear 2 includes that the symmetry is worn to be equipped with a pair of pivot on the cover wall on annealing kiln sealed cowling 1 width direction, every pivot be connected with annealing kiln sealed cowling 1 through the bearing frame (not shown in the figure) on the annealing kiln sealed cowling 1.

And a traction wheel is arranged at the upper end part of each rotating shaft in the annealing kiln sealing cover 1 in a penetrating way, and the traction wheel is contacted with an invalid area on one side of the length edge of the glass belt 3. The end parts of the same group of rotating shafts outside the annealing kiln sealing cover 1 are respectively provided with a chain wheel and chain type transmission device, and the device is connected and matched with a driving wheel of a motor to form transmission. The power through the motor is transmitted to the chain through the driving gear on the output shaft of the motor, the chain drives the rotating shaft to rotate, and then the rotating shaft drives the traction wheels distributed on the upper side and the lower side of the glass belt to rotate so as to drive the glass belt to move. Since the dead areas are eventually trimmed away, the marks created by the pulling wheels on the dead areas while pulling the glass sheet do not affect the finished glass ribbon.

One side of draw gear 2 below 3 glass belts is equipped with air supporting device 4, air supporting device 4 including distribute in 3 below glass belts air outlet 4d, air outlet 4d be the infundibulate, the opening of upper end corresponds with 3 glass belts, the less air inlet end of lower extreme communicates with air-out cavity 4c, is equipped with a set of filter screen cloth that does not show in the picture in air-out cavity 4. One end of the air outlet cavity 4 is communicated with a fan 4a through an air pipe, and a first heater 4b is arranged on the air pipe in a penetrating mode. The air blown out from the fan is heated by the first heater, is filtered by the filter screen in the air outlet cavity and is finally sprayed out from the air outlet, and the glass belt is lifted.

A first temperature sensor 4g and a wind force sensing device 4f are arranged on the kiln sealing cover 1 between the air outlet 4d and the glass belt 3 in a penetrating mode, and the wind force sensing device 4f is in electric signal connection and matching with the fan 4a through a cable. Detect the wind-force intensity of following air outlet 4d spun through wind-force induction system 4f to give the fan with data transmission, thereby make the controller control fan output suitable power on the fan.

The first temperature sensor 4g is also fitted to the first heater 4b through a cable for electrical signal connection. The temperature of the wind ejected from the outlet is detected by the first temperature sensor 4g, and the data is transmitted to the first heater 4b, so that the controller on the first heater 4b controls the first heater 4b to output proper power.

A supporting device 5 is arranged on one side of the air floatation device 4, the supporting device 5 comprises a pair of vertically distributed supports 5a arranged below the glass belt 3, carrier rollers 5c distributed along the width direction of the glass belt 3 are spanned at the top ends of the supports 5a, and a gap of 3-5mm is arranged between the carrier rollers 5c and the glass belt 3. The phenomenon that the air floatation device cannot work under emergency is avoided, so that the glass belt can droop, or normal glass belt transmission can still be maintained through the supporting device 5 when the glass belt is broken. One end of a rotating shaft of the carrier roller 5c extends out of the annealing kiln sealing cover 1, and a driven gear is arranged at the end part of the rotating shaft, and the driven gear is in transmission fit with a chain on the traction device 2. So that the idler 5c corresponds to the speed of the traction wheel on the traction device 2.

The temperature control device 6 is arranged above the glass belt 3, and comprises a second temperature sensor 6a arranged on the annealing kiln sealing cover 1 above the glass belt 3 in a penetrating manner, a second heater 6b arranged on one side of the second temperature sensor 6a, the second heater 6b is connected with the annealing kiln sealing cover 1 through a connecting frame which is not shown in the figure, and the second temperature sensor 6a is in electric signal connection and matching with the second heater 6b through a cable. The temperature of the side of the glass ribbon 3 detected by the second temperature sensor 6a and the data is transmitted to the second temperature sensor 6a so that the controller on the second heater 6b controls the second heater 6b to output a suitable power. The second heater 6b and the first heater 4b are both electric heaters in the prior art.

Claims

1. The utility model provides an ultra-thin float method electronic glass annealing kiln, it includes annealing kiln sealed cowling (1), its characterized in that: the annealing furnace is characterized in that two groups of traction devices (2) corresponding to the glass belts (3) are arranged at the inlet end in the annealing furnace sealing cover (1), air floatation devices (4) corresponding to the glass belts (3) are arranged below the glass belts (3) on one side of the traction devices (2), temperature control devices (6) are arranged above the glass belts (3) on one side of the traction devices (2), supporting devices (5) are arranged on the other side of the air floatation devices (4), and gaps are formed between the upper ends of the supporting devices (5) and the glass belts (3).

2. An ultra-thin float electronic glass annealing lehr as claimed in claim 1, wherein: the air floatation device (4) comprises a fan (4 a), a first heater (4 b) and an air outlet cavity (4 c), wherein the fan (4 a), the first heater (4 b) and the air outlet cavity (4 c) are sequentially communicated through air pipes, and an air outlet (4 d) with an upward opening is formed in the air outlet cavity (4 c).

3. An ultra-thin float electronic glass annealing lehr as claimed in claim 1, wherein: the temperature control device (6) comprises a second temperature sensor (6 a), a second heater (6 b) which is correspondingly matched with the second temperature sensor is arranged on one side of the second temperature sensor (6 a), and the second temperature sensor (6 a) and the second heater (6 b) form electric signal connection matching.

4. An ultra-thin float electronic glass annealing lehr as claimed in claim 1, wherein: the supporting device (5) comprises a support (5 a) arranged below the glass belt (3), carrier rollers (5 c) distributed along the width direction of the glass belt (3) are arranged on the top end of the support (5 a) in a spanning mode, and a certain gap is formed between the carrier rollers (5 c) and the glass belt (3).