CN105936586A - Glass heating furnace and heating method - Google Patents

Glass heating furnace and heating method Download PDF

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Publication number
CN105936586A
CN105936586A CN201610513932.5A CN201610513932A CN105936586A CN 105936586 A CN105936586 A CN 105936586A CN 201610513932 A CN201610513932 A CN 201610513932A CN 105936586 A CN105936586 A CN 105936586A
Authority
CN
China
Prior art keywords
glass
air
high temperature
flow fan
outlet box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610513932.5A
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Chinese (zh)
Inventor
李界平
李礼开
韦玉锐
彭辉胜
廖满意
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Fushan Glass Machinery Co Ltd
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Guangdong Fushan Glass Machinery Co Ltd
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Publication date
Application filed by Guangdong Fushan Glass Machinery Co Ltd filed Critical Guangdong Fushan Glass Machinery Co Ltd
Priority to CN201610513932.5A priority Critical patent/CN105936586A/en
Publication of CN105936586A publication Critical patent/CN105936586A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/012Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving the yield, e-g- reduction of reject rates

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

The invention discloses a glass heating furnace and a heating method. A ceramic roller way for heating glass is arranged in a furnace. Glass is placed on the ceramic roller way. A radiation type air heater is arranged above the glass. A forced convection device is also arranged above the glass and is used to make hot air around the radiation type air heater carry out internal thermal circulation; during the circulation process, the force convection device can control the flowing speed and flow of hot air and is used to heat the upper surface of glass, thus the upper surface of glass can be uniformly heated relative to the lower surface, and the temperature of the upper surface of glass can be controlled. The high temperature convection device makes the idle hot air above the heater carry out forced internal thermal circulation so as to further reduce the energy consumption, moreover, the heating speed is increased, the heating becomes more uniform, and the heating time is shortened.

Description

A kind of glass heating furnace and heating means
Technical field
The present invention relates to glass heating technical field of processing equipment, be specifically related to a kind of glass heating furnace and heating means.
Background technology
Glass is in (physics) toughening process, and heating is first operation, is also the most important operation affecting glass final tempering quality.In current toughened glass equipment, heating furnace is that control process is the most complicated, safety glass product is affected a maximum part.Control the heating process of glass well, be the premise producing high-quality safety glass.
Glass heating process in burner hearth is the process that a fire box temperature declines, heats up, equalizes;The heating process of glass be one be first rapidly heated, the process of the most gradually soaking.The heating needs that glass time period different time heated in stove needs different mode of heatings to meet glass, reducing the manufacturing deficiency that glass causes by conventional heating mode is the difficult problem that each equipment manufacturer needs to solve.
The high temperature that can cause furnace temperature and ceramic roller when glass has just entered stove declines, this time is affected by conduction of heat due to Glass base contact ceramic roller, lower glass surface heats up quickly, and the impact of the upper surface thermal radiation of glass heats up the slowest, heating initial stage glass deformation is the biggest, easily occur that glass is bent upwards with big plate surface glass because of the phenomenon of the uneven repeated deformation that is heated, now easily cause glass and bursting of " white haze " and plate glass occurs, and along with the heat supplement of upper heating elements, glass top surface temperature gradually rises, the temperature difference of glass upper and lower surface reduces, glass gradually flattens, this process constitutes about the 20%~30% of glass heating process, glass surface now is gradually reduced with the temperature difference of glass core, the programming rate of glass gradually slows down, this phenomenon can last till that the heating of glass terminates.
Summary of the invention
Based on the deficiencies in the prior art, the invention provides a kind of glass heating furnace and heating means, solving glass needs different heating-up temperatures in the different time periods and makes glass upper and lower surface be heated evenly, and meets the demand of processing high-quality safety glass product.
For achieving the above object, the technical scheme is that
A kind of glass heating furnace, it is provided with to the ceramic roller of glass heating in body of heater, glass is placed on ceramic roller, glass is provided above radial pattern air heater, glass is arranged above forced convection device, for the hot-air around radial pattern air heater being carried out internal thermal cycle, in cyclic process, forced convection device is by controlling flowing velocity and the uninterrupted of hot-air, for glass top surface is heated, make glass top surface with thermally equivalent and realization, the temperature of glass top surface can be controlled relative to lower surface.
Described forced convection device include that air channel that high temperature convection flow fan, high temperature convection flow fan both sides connect respectively, two air channels connect respectively for distributing the air outlet box of air quantity, air outlet box connects for the discharge pipe being blown to by wind on glass uniformly.
Said two air outlet box connects the two ends of same discharge pipe respectively, it is interval that described high temperature convection flow fan, air channel, air outlet box and discharge pipe surround annular, it is heat-insulation layer between described annular interval and furnace wall, and upper end, described furnace wall is provided with the putting hole of described high temperature convection flow fan, described putting hole seals with described high temperature convection flow fan outer wall.
Multiple air-out space it is provided with below described discharge pipe.
It is interval interior that described heater is arranged on described annular.
Described air channel includes straight air channel and the curved air channel being connected with straight air channel, and described straight air channel connects described high temperature convection flow fan, and described curved air channel connects described air outlet box, and described air outlet box connects one end of described discharge pipe.
The rotating speed of described high temperature convection flow fan is adjustable.
A kind of glass heating means, glass is placed on the ceramic roller of glass heating furnace, glass is provided above radial pattern air heater, described method also includes: be provided above a forced convection device at glass, hot-air around described air heater is evacuated in the air line of forced convection device self by described forced convection device, forced convection device, by regulating flowing velocity and the uninterrupted of hot-air in self air line, makes glass top surface can control the temperature of glass top surface with thermally equivalent and realization relative to lower surface.
Forced convection device in described method include that air channel that high temperature convection flow fan, high temperature convection flow fan both sides connect respectively, two air channels connect respectively for distributing the air outlet box of air quantity, two air outlet box connect same discharge pipe two ends respectively, being provided with multiple air-out space below described discharge pipe, hot blast is radiated on glass to be heated uniformly by described air-out space.
The rotating speed of described high temperature convection flow fan is adjustable.
The invention have the benefit that the idle hot-air on heater top is carried out internal forcing thermal cycle by (1) high temperature convection device, energy consumption the most effectively reduces, than general radiation stove energy-conservation about 20%.
(2) in stove, heat temperature raising is fast, more uniform, heat time heating time shortens, actual furnace temperature can reduce about 20 DEG C, the glass deformation that tempering goes out is little, has more preferable optical property, uses different rotating speeds in different time period high temperature convection flow fan, control the programming rate of glass upper and lower surface, meet the technological requirement of processing high-quality safety glass.
(3) install, safeguard simple, fast and easy.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the specific embodiment of the invention.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, the technique effect of design, concrete structure and the generation of the present invention is clearly and completely described, to be completely understood by the purpose of the present invention, feature and effect.Obviously; described embodiment is a part of embodiment of the present invention rather than whole embodiment, based on embodiments of the invention; other embodiments that those skilled in the art is obtained on the premise of not paying creative work, belong to the scope of protection of the invention.
A kind of glass heating furnace, it is provided with to the ceramic roller 3 of glass 2 heating in body of heater 1, glass 2 is placed on ceramic roller 3, glass 2 is provided above radial pattern air heater 4, glass 2 is arranged above forced convection device 5, for the hot-air around radial pattern air heater 4 being carried out internal thermal cycle, in cyclic process, forced convection device 5 is by controlling flowing velocity and the uninterrupted of hot-air, for glass 2 upper surface is heated, make glass 2 upper surface with thermally equivalent and realization, the temperature of glass 2 upper surface can be controlled relative to lower surface.
Forced convection device 5 include that the air channel 52,52, two, air channel that high temperature convection flow fan 51, high temperature convection flow fan 51 both sides connect respectively connects respectively for distributing the air outlet box 53 of air quantity, air outlet box 53 connects for the discharge pipe 54 being blown to by wind on glass 2 uniformly.
Two air outlet box 53 connect the two ends of same discharge pipe 54 respectively, it is interval that high temperature convection flow fan 51, air channel 52, air outlet box 53 and discharge pipe 54 surround annular, it is heat-insulation layer 6 between annular interval and furnace wall, and upper end, furnace wall is provided with the putting hole of high temperature convection flow fan 51, putting hole seals with described high temperature convection flow fan 51 outer wall.
Multiple air-out space it is provided with below discharge pipe 54.
It is interval interior that radial pattern air heater 4 is arranged on described annular.
Air channel 52 includes straight air channel 521 and the curved air channel 522 being connected with straight air channel, and straight air channel 521 connects high temperature convection flow fan 5, and curved air channel 522 connects air outlet box 53, and air outlet box 53 connects one end of discharge pipe 54.
The rotating speed of high temperature convection flow fan 51 is adjustable, high temperature convection flow fan includes the fan in fan main body, fan main body and the motor driver driving fan to rotate, electrode drive fan rotates, and according to the power of electrode, the rotating speed driving fan is adjustable, can be by regulating the rotating speed of fan, according to the temperature needed in glass processing regimen, regulation is evacuated to hot blast rate and the flow velocity of pipeline.
A kind of glass heating means, are placed on glass on the ceramic roller of glass heating furnace,
Glass is provided above radial pattern air heater, method also includes: be provided above a forced convection device at glass, hot-air around air heater is evacuated in the air line of forced convection device self by forced convection device, forced convection device, by regulating flowing velocity and the uninterrupted of hot-air in self air line, makes glass top surface can control the temperature of glass top surface with thermally equivalent and realization relative to lower surface.
Forced convection device in method include that air channel that high temperature convection flow fan, high temperature convection flow fan both sides connect respectively, two air channels connect respectively for distributing the air outlet box of air quantity, two air outlet box connect same discharge pipe two ends respectively, being provided with multiple air-out space below discharge pipe, hot blast is radiated on glass to be heated uniformly by described air-out space.
The rotating speed of high temperature convection flow fan is adjustable.
In high-temperature heater, heating element heater top hot-air distributes → is positioned at the discharge pipe above glass → uniformly the blow to glass top surface of motion on ceramic roller → be delivered to inside glass through (different time period high-temperature blower use different rotating speeds) inflows → air channel → curved air channel → air outlet box that high-temperature warm air machine circulates, and completes stove interior-heat internal air circulation and glass top different time sections is required heats.
Carry out the idle hot-air on heater top internal forcing thermal cycle by high temperature convection device, make energy consumption the most effectively reduce, than all-radiant furnace energy-conservation about 20%.
In stove, heat temperature raising is fast, more uniformly, effectively slows down heating initial stage glass and is bent upwards with big glass sheet because of the situation of the uneven repeated deformation that is heated, and burst in big degree minimizing plate glass stove;Heat time heating time shortens, and reduces the glass time in stove, and by test, common white glass is: 30~33s/mm;Low E glass is 34~38 s/mm, and yield can improve 20%.
Compared with normal radiation stove, actual furnace temperature can reduce about 20 DEG C, and the glass deformation that tempering goes out is little, has more preferable optical property.Being more suitable for tempering ultra-clear glasses, online Low E glass and off-line Low E glass, E value is minimum up to 0.05.
Using different rotating speeds in different time period high temperature convection flow fan, control the programming rate of glass upper and lower surface, meet the technological requirement of processing high-quality safety glass, the safety glass flatness processed is the best.Equipment install, safeguard simple, fast and easy.
It should be noted that the above is presently preferred embodiments of the present invention, the invention is not limited in above-mentioned embodiment, as long as it reaches the technique effect of the present invention with identical means, all should belong to protection scope of the present invention.

Claims (10)

1. a glass heating furnace, it is provided with to the ceramic roller of glass heating in body of heater, glass is placed on ceramic roller, glass is provided above radial pattern air heater, it is characterized in that: glass is arranged above forced convection device, for the hot-air around radial pattern air heater being carried out internal thermal cycle, in cyclic process, forced convection device is by controlling flowing velocity and the uninterrupted of hot-air, for glass top surface is heated, make glass top surface with thermally equivalent and realization, the temperature of glass top surface can be controlled relative to lower surface 。
2. glass heating furnace as claimed in claim 1, it is characterised in that: described forced convection device include that air channel that high temperature convection flow fan, high temperature convection flow fan both sides connect respectively, two air channels connect respectively for distributing the air outlet box of air quantity, air outlet box connects for the discharge pipe being blown to by wind on glass uniformly.
3. glass heating furnace as claimed in claim 2, it is characterized in that: said two air outlet box connects the two ends of same discharge pipe respectively, it is interval that described high temperature convection flow fan, air channel, air outlet box and discharge pipe surround annular, it is heat-insulation layer between described annular interval and furnace wall, and upper end, described furnace wall is provided with the putting hole of described high temperature convection flow fan, described putting hole seals with described high temperature convection flow fan outer wall.
4. glass heating furnace as claimed in claim 3, it is characterised in that: it is provided with multiple air-out space below described discharge pipe.
5. glass heating furnace as claimed in claim 2, it is characterised in that: it is interval interior that described heater is arranged on described annular.
6. glass heating furnace as claimed in claim 2, it is characterized in that: described air channel includes straight air channel and the curved air channel being connected with straight air channel, described straight air channel connects described high temperature convection flow fan, and described curved air channel connects described air outlet box, and described air outlet box connects one end of described discharge pipe.
7. glass heating furnace as claimed in claim 2, it is characterised in that: the rotating speed of described high temperature convection flow fan is adjustable.
8. glass heating means, glass is placed on the ceramic roller of glass heating furnace, glass is provided above radial pattern air heater, it is characterized in that described method also includes: be provided above a forced convection device at glass, hot-air around described air heater is evacuated in the air line of forced convection device self by described forced convection device, forced convection device, by regulating flowing velocity and the uninterrupted of hot-air in self air line, makes glass top surface can control the temperature of glass top surface with thermally equivalent and realization relative to lower surface 。
9. glass heating means as claimed in claim 8, it is characterized in that: the forced convection device in described method include that air channel that high temperature convection flow fan, high temperature convection flow fan both sides connect respectively, two air channels connect respectively for distributing the air outlet box of air quantity, two air outlet box connect same discharge pipe two ends respectively, being provided with multiple air-out space below described discharge pipe, hot blast is radiated on glass to be heated uniformly by described air-out space.
10. glass heating means as claimed in claim 9, it is characterised in that: the rotating speed of described high temperature convection flow fan is adjustable.
CN201610513932.5A 2016-06-30 2016-06-30 Glass heating furnace and heating method Pending CN105936586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610513932.5A CN105936586A (en) 2016-06-30 2016-06-30 Glass heating furnace and heating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610513932.5A CN105936586A (en) 2016-06-30 2016-06-30 Glass heating furnace and heating method

Publications (1)

Publication Number Publication Date
CN105936586A true CN105936586A (en) 2016-09-14

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CN201610513932.5A Pending CN105936586A (en) 2016-06-30 2016-06-30 Glass heating furnace and heating method

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Country Link
CN (1) CN105936586A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109081567A (en) * 2018-11-05 2018-12-25 浙江汉能玻璃技术有限公司 A kind of turbofan high-temperature blower convection glass tempering furnace
CN110002732A (en) * 2019-04-16 2019-07-12 湖南兴龙科技有限公司 A method of control glass heating
CN110183111A (en) * 2019-06-19 2019-08-30 广东健诚高科玻璃制品股份有限公司 A kind of coating by vaporization device of domestic glass ceramics, coating by vaporization coating and preparation method thereof
CN111072270A (en) * 2019-04-30 2020-04-28 索奥斯(广东)玻璃技术股份有限公司 High-efficient glass heating device
CN111099816A (en) * 2020-01-13 2020-05-05 洛阳德勤机械设备有限公司 Forced convection method and device for toughened glass heating furnace
CN112374730A (en) * 2020-11-28 2021-02-19 台玻悦达汽车玻璃有限公司 Preheating device for glass manufacturing
CN113788610A (en) * 2021-10-29 2021-12-14 索奥斯(广东)玻璃技术股份有限公司 Accurate stable glass tempering system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101844862A (en) * 2009-03-25 2010-09-29 洛阳北方玻璃技术股份有限公司 Glass toughening furnace based on net array type heating
CN201605229U (en) * 2009-12-21 2010-10-13 浙江鼎玻自动化设备有限公司 Whole convection system used for glass tempering furnace
CN203754588U (en) * 2014-01-13 2014-08-06 洛阳捷瑞精工机械有限公司 Fan forced-heating convection structure with flow guide cover
CN204111586U (en) * 2014-04-28 2015-01-21 云南阳光利生玻璃科技有限公司 A kind of strengthening convection device of annealing furnace
CN204224446U (en) * 2014-11-26 2015-03-25 呼和浩特市原峰玻璃技术有限责任公司 Air knife type forced convection type glass tempering process furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101844862A (en) * 2009-03-25 2010-09-29 洛阳北方玻璃技术股份有限公司 Glass toughening furnace based on net array type heating
CN201605229U (en) * 2009-12-21 2010-10-13 浙江鼎玻自动化设备有限公司 Whole convection system used for glass tempering furnace
CN203754588U (en) * 2014-01-13 2014-08-06 洛阳捷瑞精工机械有限公司 Fan forced-heating convection structure with flow guide cover
CN204111586U (en) * 2014-04-28 2015-01-21 云南阳光利生玻璃科技有限公司 A kind of strengthening convection device of annealing furnace
CN204224446U (en) * 2014-11-26 2015-03-25 呼和浩特市原峰玻璃技术有限责任公司 Air knife type forced convection type glass tempering process furnace

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109081567A (en) * 2018-11-05 2018-12-25 浙江汉能玻璃技术有限公司 A kind of turbofan high-temperature blower convection glass tempering furnace
CN109081567B (en) * 2018-11-05 2023-08-25 浙江汉能玻璃技术有限公司 Convection glass tempering furnace of turbofan high-temperature fan
CN110002732A (en) * 2019-04-16 2019-07-12 湖南兴龙科技有限公司 A method of control glass heating
CN111072270A (en) * 2019-04-30 2020-04-28 索奥斯(广东)玻璃技术股份有限公司 High-efficient glass heating device
CN110183111A (en) * 2019-06-19 2019-08-30 广东健诚高科玻璃制品股份有限公司 A kind of coating by vaporization device of domestic glass ceramics, coating by vaporization coating and preparation method thereof
CN110183111B (en) * 2019-06-19 2024-02-02 广东健诚高科玻璃制品股份有限公司 Steaming coating device and steaming coating material for daily glass ceramic and preparation method thereof
CN111099816A (en) * 2020-01-13 2020-05-05 洛阳德勤机械设备有限公司 Forced convection method and device for toughened glass heating furnace
CN112374730A (en) * 2020-11-28 2021-02-19 台玻悦达汽车玻璃有限公司 Preheating device for glass manufacturing
CN113788610A (en) * 2021-10-29 2021-12-14 索奥斯(广东)玻璃技术股份有限公司 Accurate stable glass tempering system

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Application publication date: 20160914

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