CN103274586B - Glass tempering furnace - Google Patents
Glass tempering furnace Download PDFInfo
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- CN103274586B CN103274586B CN201310261067.6A CN201310261067A CN103274586B CN 103274586 B CN103274586 B CN 103274586B CN 201310261067 A CN201310261067 A CN 201310261067A CN 103274586 B CN103274586 B CN 103274586B
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Abstract
The invention discloses a kind of glass tempering furnace, it comprises upper furnace, lower hearth, live rollers, stove silk, radial lamella; It also comprises radiator tube group and convection tubes, described radiator tube group is lifted in the burner hearth of upper furnace, and be arranged on the below of stove silk, radiator tube group is connected side by side by some radiator tubes paralleled and forms, described convection tubes is lifted on the below of radiator tube, the inlet end of convection tubes is communicated with blower fan, and convection tubes is provided with gas orifice.The present invention adopts heat-resistance stainless steel radiator tube, and substitute traditional radial lamella, the surface-area of radiating surface adds about 60%, and the speed of heat trnasfer is fast; Convection tubes adopts blower fan air feed, effectively controls the distortion of glass.
Description
Technical field
The present invention relates to stove and accessory, particularly relate to a kind of glass tempering furnace.
Background technology
At present, thickness is the common ultra-thin glass of 1.8-2.2mm, and intensity is very low, and in processing or handling process, as easy as rolling off a log generation is broken.People can only reduce the making area of glass, and to reduce glass breaking probability, this just causes its scope used more narrow.Trace it to its cause, the glass tempering furnace mainly used now, only be suitable for the glass processing 3-19mm thickness, there is following problem with the glass that this annealing furnace production thickness is 2mm: the first, the planeness of glass does not reach requirement≤3 ‰ of GB, especially the large-area glass of 1.6-2.5 square metre.The second, the one side of glass contact live rollers, due to the distortion that glass produces in heat-processed, glass localized contact roller-way overlong time, and produce fraying of surface, form white mist.Three, due to heating uneven and enhancement method is improper, make strengthen after glass surface Stress non-homogeneity, not easily again cut.
Produce the reason of these problems mainly: the first, the type of heating of existing glass tempering furnace and control method are not suitable for the ultra-thin glass of 1.8-2.2mm thickness.Traditional heating mainly uses radiant heating pattern, and glass enters in process furnace with normal temperature, and the bottom of glass is with radiation, transmits heat form acquisition heat; But some stoves do not have top heat form; Some stoves are stove silk or radial lamella direct radiation glass.In order to stove silk is changed conveniently, radial lamella is divided into some unit by stove silk,
There is larger gap between each radial lamella, the radiation making pair glass is uneven; And the temperature between each radial lamella is not transmitted.Glass is uneven owing to being heated, and can produce distortion, and the distortion of glass just causes local and ceramic roller friction, and several localized contact point bears the weight of glass, thus the local creating glass frays, and produces " white mist ", and also has larger distortion.So mostly the thin glass of processing of general annealing furnace, be that thickness is the thin glass of 3-5mm, the probability that " white mist " appears on thin glass is very large, and the ultra-thin glass that thickness is 1.8-2.2mm cannot be processed at all in this stove.
The second, the convective heating on top is for eliminating " white mist " and arranges, but the employing of annealing furnace convection current now is pressurized air, and compressed-air actuated convection current is high pressure, few to flow point; To cause between excessive, adjacent two gas orifices of convection current dot center pressure and phenomenon that pressure between two row's convection tubess is too small, thin glass heats initial deformation can be made more serious, so that the glass of 1.8-2.2mm cannot use.
Based on the problems referred to above, simple glass annealing furnace is difficult to carry out efficient hardening to the ultra-thin glass of 1.8-2.2mm, therefore, urgent need invents a kind of glass tempering furnace, effective solution carries out the problem of tempering to the glass of 1.8-2.2mm thickness, fill up the blank on technique, and this equipment still can be strengthened to the glass of general thickness.
Summary of the invention
The object of this invention is to provide a kind of glass tempering furnace, in order to solve the defect of above-mentioned prior art.
In order to achieve the above object, technical scheme provided by the present invention is: a kind of glass tempering furnace, and it comprises body of heater, live rollers, stove silk, radial lamella; Described body of heater comprises upper furnace and lower hearth, described live rollers device is between upper furnace and lower hearth, and device is in upper furnace and lower hearth respectively for described stove silk, and stove silk is arranged towards ceramic roller, described radial lamella device in lower hearth, and is placed in above stove silk; It also comprises radiator tube group and convection tubes, described radiator tube group is lifted in upper furnace, and be arranged on the below of stove silk, radiator tube group is connected side by side by some radiator tubes and forms, described radiator tube is an one-piece construction, and be laterally lifted in upper furnace, the diameter of radiator tube is 30-40mm, and wall thickness is 3-5mm; Described convection tubes is provided with multiple, and be lifted on the below of radiator tube side by side, the inlet end of convection tubes is connected with blower fan, the diameter of convection tubes is 20-30mm, convection tubes spacing is 260-300mm: convection tubes is provided with some gas orifices, the diameter of described gas orifice is 2-3mm, is 45-55mm along the spacing of gas orifice on convection tubes length direction.
Further, described live rollers comprises roller-way support and some ceramic roll shafts, and described ceramic roll shaft is set up on roller-way support.
Further, described radiator tube adopts Heat-Resisting Stainless Steel Tube to make.
Further, the diameter of described radiator tube is 35mm, and wall thickness is 4mm.
Further, the diameter of described ceramic roll shaft is 55mm, and the spacing of ceramic roll shaft is 110mm.
Further, the diameter of described convection tubes is 25mm, and the spacing of convection tubes is 280mm.
Further, be 50mm along the spacing of gas orifice on convection tubes length direction.
Adopt technique scheme, technique effect of the present invention has:
1, annealing furnace of the present invention adopts heat-resistance stainless steel radiator tube, substitute traditional radial lamella, be placed in the bottom of upper furnace stove silk, some radiator tubes paralleled connect side by side and form, and form corrugated radiating surface, during radiation, define a cross one another radiating surface, compared to normal radiation plate, the surface-area of radiator tube adds about 60%, and the speed of heat trnasfer is fast; Radiator tube accepts the stove silk heating of different units, and radiator tube is heated evenly, and effectively decrease all around temperature difference in stove, heats is good.
2, the present invention changes the mode of top convective heating, arranges rational convection intensity and to flow area, realizes the top and the bottom homogeneous heating of glass, avoids glass to produce larger distortion.What the present invention adopted is the additional blower fan convection type of burner hearth, is different from compressed-air actuated to streamed, to flowing pressure by 3-5kg/cm
2drop to 2000-4000pa/cm
2, convection current air outlet opening area is increased to 500 square millimeters/every square metre by 25 square millimeters/every square metre.The spacing of equilibration tube changes 280 millimeters into by 600mm, effectively controls the distortion of glass.
3, rational ceramic roller shaft diameter and spacing is selected; The diameter of roll shaft is 50-60 millimeter, and the spacing of roller-way is 95-115 millimeter, above-mentioned rational diameter and spacing, glass is heated evenly, reduce the friction problem of glass and ceramic roll shaft, effectively decrease the generation of " white mist ".
4, utilize the glass surface stress equilibrium of the 1.8-2.2mm thickness after this equipment intensification, can again cut, and glass flatness≤3 ‰ of the 1.8-2.2mm thickness after strengthening, reach the requirement of GB.
Accompanying drawing explanation
Fig. 1 is the sectional view of structure of the present invention;
Fig. 2 is the side-view of structure of the present invention;
Fig. 3 is the structural representation of existing glass tempering furnace;
Wherein: 1, body of heater, 2, live rollers, 3, stove silk, 4, radial lamella, 5, radiator tube group, 6, convection tubes, 11, upper furnace, 12, lower hearth, 21, ceramic roll shaft, 51, radiator tube, 61, gas orifice.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As depicted in figs. 1 and 2, a kind of glass tempering furnace, it comprises body of heater 1, live rollers 2, stove silk 3, radial lamella 4; Body of heater 1 comprises upper furnace 11 and lower hearth 12, and live rollers 2 comprises roller-way support and some ceramic roll shafts 21, and ceramic roll shaft 21 is set up on roller-way support, and the diameter of ceramic roll shaft 21 is 50-60mm, is preferably 55mm; The spacing of pottery roll shaft 21 is 95-115mm, is preferably 110mm.Adopt diameter and the spacing of above-mentioned rational ceramic roll shaft 21, make the heat transfer rate of live rollers 2 moderate, decrease the friction problem of glass and ceramic roll shaft 21.Live rollers 2 device is between upper furnace 11 and lower hearth 12, and stove silk 3 difference device is in upper furnace 11 and lower hearth 12, and stove silk 3 is arranged towards live rollers 2, and radial lamella 4 device in lower hearth 12, and is placed in above stove silk 3.
Glass tempering furnace of the present invention also comprises radiator tube group 5 and convection tubes 6, radiator tube group 5 is lifted in upper furnace 11, and be arranged on the below of stove silk 3, radiator tube group 5 is connected side by side by some radiator tubes 51 paralleled and forms, radiator tube 51 is an one-piece construction, and adopt Heat-Resisting Stainless Steel Tube to make, have high temperature resistant, stability is high, thermal conduction and the strong feature of radiation capacity.The radiating surface that some radiator tubes 51 form is waviness radiating surface, compared with the radial lamella of existing employing, swept area of the present invention adds nearly 60%, substantially increase swept area, the speed of heat trnasfer is faster, the diameter of radiator tube 51 is 30-40mm, be preferably 35mm, wall thickness is 3-5mm, be preferably 4mm, like this, when radiator tube 51 is by each stove silk radiation of top, being heated of radiator tube entirety can be very even, accordingly, radiator tube 51 adopts rational length, diameter and wall thickness, more even to the radiation heating of glass, avoid the thin glass of 1.8-2.2mm and produce distortion because of local heating.Convection tubes 6 is lifted on the below of radiator tube 51, the diameter of convection tubes 6 is 20-30mm, be preferably 25mm, the spacing of convection tubes 6 is 260-300mm, is preferably 280mm, the inlet end of convection tubes 6 is communicated with blower fan, convection tubes 6 is provided with gas orifice 61, gas orifice 61 is arranged towards live rollers 2, and the diameter of gas orifice 61 is set to 2-3mm, be 45-55mm along the spacing of gas orifice 61 on convection tubes 61 length direction, be preferably 50mm; Air feeder blower fan of the present invention replaces common gas-holder, change the form of top convection current simultaneously, the form close to using pressure and multipair discharge orifice is changed into by the form of the few convection holes of high pressure, rolling up of convection holes, avoid the compressed-air actuated inequality to flow, blower fan adopts frequency conversion procedure auto-control, comes rate of heating and the equalization temperature on reinforced glass top with this.
As shown in Figure 3, the structural representation of existing glass tempering furnace, radial lamella is adopted to carry out thermal conduction in upper furnace 11, convenient for making stove silk change, the radial lamella 4 of casting is divided into some unit by stove silk, there is larger gap between adjacent two stove silks, this just causes the radiation of radial lamella 4 pairs of glass uneven; And, the position difference of the thermocouple that each stove silk is subject to and the impact of change over signal difference, the temperature of stove silk is different, temperature between each stove silk can not be transmitted mutually, and, the glass of 1.8-2.2mm thickness very easily produces distortion when being heated uneven, and this glass tempering difficulty just caused 1.8-2.2mm is thick is very large.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. a glass tempering furnace, it comprises body of heater (1), live rollers (2), stove silk (3), radial lamella (4); It is characterized in that: described body of heater (1) comprises upper furnace (11) and lower hearth (12), described live rollers (2) device is between upper furnace (11) and lower hearth (12), described stove silk (3) difference device is in upper furnace (11) and lower hearth (12), described radial lamella (4) device in lower hearth (12), and is placed in stove silk (3) top; It also comprises radiator tube group (5) and convection tubes (6), described radiator tube group (5) is lifted in upper furnace (11), and be arranged on the below of stove silk (3), radiator tube group (5) is connected side by side by some radiator tubes (51) and forms, the radiating surface that some radiator tubes (51) form is waviness radiating surface, described radiator tube (51) is an one-piece construction, the diameter of radiator tube (51) is 30-40 ㎜, wall thickness is 3-5 ㎜, and is laterally lifted in upper furnace (11); Described convection tubes (6) is provided with multiple, and be lifted on the below of radiator tube (51) side by side, the inlet end of convection tubes (6) is connected with blower fan, and the diameter of convection tubes (6) is 20-30mm, and the spacing of convection tubes (6) is 260-300mm; Convection tubes (6) is provided with some gas orifices (61), the diameter of described gas orifice (61) is 2-3mm, be 45-55mm along the spacing of gas orifice (61) on convection tubes (6) length direction, be 2000-4000 handkerchief/every square centimeter to flowing pressure, convection current air outlet opening area is 500 square millimeters/every square metre.
2. glass tempering furnace according to claim 1, is characterized in that: described live rollers (2) comprises roller-way support and some ceramic roll shafts (21), and described ceramic roll shaft (21) is set up on roller-way support.
3. glass tempering furnace according to claim 1, is characterized in that: described radiator tube (51) adopts Heat-Resisting Stainless Steel Tube to make.
4. the glass tempering furnace according to claim 1 or 3, is characterized in that: the diameter of described radiator tube (51) is 35mm, and wall thickness is 4mm.
5. glass tempering furnace according to claim 2, is characterized in that: the diameter of described ceramic roll shaft (21) is 55mm, and the spacing of ceramic roll shaft (21) is 110mm.
6. glass tempering furnace according to claim 1, is characterized in that: the diameter of described convection tubes (6) is 25mm, and the spacing of convection tubes (6) is 280mm.
7. glass tempering furnace according to claim 1, is characterized in that: be 50mm along the spacing of gas orifice (61) on convection tubes (6) length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261067.6A CN103274586B (en) | 2013-06-27 | 2013-06-27 | Glass tempering furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310261067.6A CN103274586B (en) | 2013-06-27 | 2013-06-27 | Glass tempering furnace |
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| CN103274586A CN103274586A (en) | 2013-09-04 |
| CN103274586B true CN103274586B (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640492A (en) * | 2018-07-25 | 2018-10-12 | 蚌埠淮畔精密机械有限公司 | A kind of glass tempering furnace |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236718A (en) * | 2015-08-23 | 2016-01-13 | 洛阳新兆电子有限公司 | Heating process of heating section of thermal-forming furnace for mobile phone 3D curve-surface glass cover plate |
| CN110844280A (en) * | 2019-11-22 | 2020-02-28 | 江苏中美达制冷科技有限公司 | Heating preservation box |
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|---|---|---|---|---|
| CN2039819U (en) * | 1988-09-12 | 1989-06-21 | 山东淄博色釉料厂 | Tubes assembled plate far infra-red radiation heater |
| WO2007107791A1 (en) * | 2006-03-20 | 2007-09-27 | Westcrowns Contracting Services Limited | Tempering apparatus |
| 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 |
| CN101848875A (en) * | 2007-11-08 | 2010-09-29 | 单玻璃工程公司 | Method of heating a glass panel and apparatus applying the method |
| CN101905948A (en) * | 2010-08-06 | 2010-12-08 | 杭州精工机械有限公司 | Radiation heating furnace with external circulating device |
| CN201817377U (en) * | 2010-02-10 | 2011-05-04 | 陈杰 | Quick convection heating furnace |
-
2013
- 2013-06-27 CN CN201310261067.6A patent/CN103274586B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039819U (en) * | 1988-09-12 | 1989-06-21 | 山东淄博色釉料厂 | Tubes assembled plate far infra-red radiation heater |
| WO2007107791A1 (en) * | 2006-03-20 | 2007-09-27 | Westcrowns Contracting Services Limited | Tempering apparatus |
| CN101848875A (en) * | 2007-11-08 | 2010-09-29 | 单玻璃工程公司 | Method of heating a glass panel and apparatus applying the method |
| 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 |
| CN201817377U (en) * | 2010-02-10 | 2011-05-04 | 陈杰 | Quick convection heating furnace |
| CN101905948A (en) * | 2010-08-06 | 2010-12-08 | 杭州精工机械有限公司 | Radiation heating furnace with external circulating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640492A (en) * | 2018-07-25 | 2018-10-12 | 蚌埠淮畔精密机械有限公司 | A kind of glass tempering furnace |
| CN108640492B (en) * | 2018-07-25 | 2019-11-29 | 温州美富达工艺品有限公司 | A kind of glass tempering furnace |
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| CN103274586A (en) | 2013-09-04 |
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Granted publication date: 20160120 Termination date: 20190627 |