CN1293002C - Convective glass sheet heating furnaces - Google Patents
Convective glass sheet heating furnaces Download PDFInfo
- Publication number
- CN1293002C CN1293002C CNB2004100463866A CN200410046386A CN1293002C CN 1293002 C CN1293002 C CN 1293002C CN B2004100463866 A CNB2004100463866 A CN B2004100463866A CN 200410046386 A CN200410046386 A CN 200410046386A CN 1293002 C CN1293002 C CN 1293002C
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- heater
- furnace body
- plenum chamber
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
- C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
- C03B29/08—Glass sheets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention discloses a convection type glass plate heating furnace which comprises a furnace body. A glass plate inlet and a glass plate outlet are arranged on the furnace body; a glass plate delivery mechanism is arranged in the furnace body; a high-temperature gas spraying apparatus is arranged in the furnace body; the high-temperature gas spraying apparatus and a draught fan form a gas circulation loop through a pipeline and an inner cavity of the furnace body; a flame radiation pipe heater is arranged on an airflow channel between a high-temperature gas spraying outlet on the high-temperature gas spraying apparatus and the draught fan. The heating furnace adopts the mode of spraying high-temperature gas to heat glass; the defects of low heating efficiency and long heating time of the glass plate with high reflectivity and high transmissivity are eliminated. The inner part of the furnace body is divided into a plurality of heating zones in the mode of a collector box, and a heater and a temperature detection apparatus are arranged in each collector box, which not only is convenient to control local temperature in the furnace body, but also makes the structure of the furnace body compact and the maintenance convenient. A CO2 gas sensor is arranged in the furnace body, which guarantees the safety of the apparatus during operation.
Description
Technical field
The present invention relates to a kind of glass plate heating furnace, especially a kind of process furnace that with convection type sheet glass is heated fully.
Background technology
Existing glass plate heating furnace is usually with radiation mode work, and the infrared rays that promptly utilizes resistance heating element to send heats sheet glass.Because the glass blackness of some kinds is little, its reflectivity is relative with transmissivity higher, and is relatively poor to the radiation heating specific absorption, thereby adopts conventional radiation mode to heat, and has the problem that heat-up time is long, heating efficiency is low.When making LOW-E, a large amount of heats are reflected, and the glass pane surface temperature does not reach requirement.In addition, during radiation heating, because of roller-way directly conducts heat to the sheet glass lower surface, and the radiant heat that this part conduction heat is received greater than the sheet glass upper surface, cause the upper and lower surface of sheet glass to have certain temperature head, cause glass edge portion warpage, produce white mist phenomenon at the position that contacts with roller-way simultaneously, and finally influence the glass processing quality.
Summary of the invention
Deficiency at the prior art existence, the purpose of this invention is to provide a kind of convection type glass plate heating furnace, this process furnace adopts the jet flow heating technique, and high-temperature gas is jetted to glass pane surface, by the convective heat exchange of high-temperature gas and sheet glass, and finish heating to sheet glass.
For achieving the above object, convection type glass plate heating furnace of the present invention comprises body of heater, and body of heater is provided with sheet glass and imports and exports, and is provided with glass sheets mechanism in the body of heater; At least one side of glass sheets passage is provided with the high temperature air jet device in the body of heater, this high temperature air jet device surface is to being heated the densely covered high-temperature gas ejiction opening of sheet glass one side, high temperature air jet device, blower and pipeline and body of heater inner chamber constitute a gas circulation loop, wherein the body of heater inner chamber is communicated with fan air inlet, high-temperature gas ejiction opening on the high temperature air jet device and the gas channel between the blower fan are provided with the flame radiaton pipe heater, finish heating to the gas in the above-mentioned gas circulation loop by this flame radiaton pipe heater.
Further, described flame radiaton pipe heater is a heat accumulating type flame radiaton pipe heater, this heat accumulating type flame radiaton pipe heater is made of a radiator tube and a pair of main burner, be provided with heat storage in the main burner, the airtight radiator tube two ends that are installed in of two main burners, match with it, body of heater is outside equipped with corresponding fuel tube, air supply line and smoke discharging pipe, blast inlet on the two main burners is by one or two position four-way valve and air supply line, smoke discharging pipe links to each other, under the control of two position four-way valves, two main burner alternate combustion, alternately accumulation of heat, alternately smoke evacuation is provided with separate control valve on the fuel tube of two main burners.
Further, described heat storage is ceramic heat-storing sphere or ceramic honeycomb heat storage.
Further, described heat accumulating type flame radiaton pipe heater is directly installed in the described high temperature air jet device, or be installed in the connecting tube between described high temperature air jet device and the described blower fan, or be inserted on the gas channel between described high temperature air jet device and the described blower fan by an airtight housing.
Further, be provided with CO in the described body of heater
2Gas sensor.
Further, described high temperature air jet device is made of pipeline, this pipeline coiling is arranged or arranged, wherein each pipeline during arranged is linear or waviness, and be interconnected, described high-temperature gas ejiction opening is made of the high-temperature gas nozzle or the high-temperature gas squit hole that are arranged on the pipeline.
Further, described high temperature air jet device is made of at least one plenum chamber, this plenum chamber is airtight casing, it is provided with inlet mouth and air outlet, inlet mouth links to each other with described blower fan by pipeline, the place, air outlet is provided with jet plate, the high-temperature gas squit hole gathers on the jet plate, jet plate is towards being heated the sheet glass setting, and apart from being heated the suitable distance of glass pane surface, be provided with at least one heat accumulating type flame radiaton pipe heater in each plenum chamber, be respectively arranged with temperature sensor in each plenum chamber.
Further, also be provided with the waste gas recovery holes on the described jet plate, this waste gas recovery holes is by the body of heater intracavity inter-connection of pipeline and plenum chamber outside.
Further, described jet plate is the waviness plate, and described high-temperature gas squit hole is distributed near the trough place that is heated glass pane surface, and described waste gas recovery holes is arranged on away from the crest place that is heated glass pane surface.
Further, described two position four-way valves are corresponding one by one with described plenum chamber, be provided with volume damper between each two position four-way valve and the described air supply line, be provided with a public ratio adjusting valve in each plenum chamber between each heat accumulating type flame radiaton pipe heater and the described fuel tube, this public ratio adjusting valve is positioned on the fuel gas transportation pipeline of described control valve upstream, links mutually with corresponding ratio adjusting valve of same plenum chamber and volume damper.
Further, described body of heater is a horizontal, comprise upper furnace body, lower furnace body, roller bed type glass sheets mechanism is installed on the lower furnace body, on, at least one described plenum chamber all is installed in the lower furnace body, wherein the plenum chamber in the upper furnace body can move up and down by suspension gear and be installed on the upper furnace body, plenum chamber in the lower furnace body is supported on the lifting device moving up and down that is provided with in the lower furnace body, described suspension gear is a bolt and nut mechanism, plenum chamber is suspended on the screw rod by nut, screw rod is fixed on the upper furnace body, its the upper end be arranged on the body of heater roof on operating mechanism link to each other, this operating mechanism is the worm and gear operating mechanism, or gear or sprocket wheel operating mechanism, described lifting device is a screw rod, lift nut mechanism, described plenum chamber and nut fix, and link to each other with screw rod by nut, and screw rod is rotatable to be installed on the lower furnace body, screw rod and worm and gear operating mechanism or gear or sprocket wheel operating mechanism link to each other, and can rotation under operating mechanism is handled.
Process furnace of the present invention adopts the mode to glass pane surface injection high-temperature gas that sheet glass is heated, and it is low to have eliminated traditional heating stove existing heating efficiency when heating high-reflectivity and high-transmission rate sheet glass effectively, the defective that heat-up time is long.Mode with plenum chamber will be divided into several heating zone in the body of heater, and well heater and temperature-detecting device are set in each plenum chamber, not only makes things convenient for the control of local temperature in the body of heater, and makes furnace binding compact more, keeps in repair convenient.CO is set in body of heater
2Gas sensor when guaranteeing equipment operation safety, also can be used for the trouble diagnosis to well heater.
Description of drawings
Fig. 1 is a structure cross-sectional schematic of the present invention;
Fig. 2 is an E-E view among Fig. 1;
Fig. 3 is the jet plate structural representation;
Fig. 4 is a F-F view among Fig. 3;
Fig. 5 is a heat accumulating type flame radiaton pipe heater fuel feed line structural representation;
Fig. 6 is heat accumulating type flame radiaton pipe heater air feed and smoke exhaust pipe line structure synoptic diagram.
Embodiment
Fig. 1, Figure 2 shows that convection type glass plate heating furnace of the present invention makes vertical structure cross-sectional schematic, this process furnace comprises lower furnace body 1, upper furnace body 5, on, the lower furnace body both sides are provided with sheet glass input aperture 3, sheet glass delivery port 11, glass sheets roller-way 13 is installed on the lower furnace body 1, on, be respectively arranged with 12 plenum chambers 2 in the lower furnace body, this plenum chamber 2 is airtight casing, it is provided with inlet mouth 4 and air outlet, the place, air outlet is provided with jet plate 14, jet plate 14 is provided with high-temperature gas squit hole 24 and waste gas recovery holes 25 (is seen Fig. 3, Fig. 4), the air outlet of plenum chamber 2 is provided with towards glass sheets roller-way 13, and apart from glass sheets roller-way 13 suitable distances, the inlet mouth 4 of plenum chamber 2 links to each other with the venting port of blower fan 8 by pipeline 6, be provided with two heat accumulating type flame radiaton pipe heaters 10 in each plenum chamber 2, blower fan 8 inlet mouths suck the waste gas at waste gas recovery holes 25 places on the plenum chamber jet plate by the pipeline in pipeline 7 and the plenum chamber 29, pipeline 9 in the plenum chamber 2 is introduced the waste gas at waste gas recovery holes 25 places in the body of heater inner chamber of plenum chamber 2 away from glass sheets roller-way end, blower fan 8 inlet mouths, pipeline 7, the body of heater inner chamber, plenum chamber 2 interior conduits 9, waste gas recovery holes 25, blower fan 8 venting ports, pipeline 6, plenum chamber 2, high-temperature gas squit hole 24 is common to constitute gas circulation loop, two heat accumulating type flame radiaton pipe heaters 10 that plenum chamber 2 is provided with at plenum chamber 2 inlet mouths to the gas passage between the High Temperature Gas body squit hole 24.Plenum chamber 2 in the upper furnace body 5 is for analysing and observe state.Each plenum chamber 2 in the upper furnace body 5 is suspended on two screw rods 17 by nut 15 respectively, screw rod 17 rotatable being installed on the upper furnace body roof, screw rod 17 upper ends link to each other with worm and gear operating mechanism 16, and under the manipulation of operating mechanism 16, screw rod 17 rotations also drive plenum chamber 2 thus and move up and down.Each plenum chamber 2 in the lower furnace body 1 is bearing on two or four screw rods 22 by nut 23 respectively, screw rod 22 lower ends are rotatable to be installed on the lower furnace body 1, screw rod 22 lower ends link to each other with worm and gear operating mechanism 31, under the manipulation of operating mechanism 31, screw rod 22 rotates and drives coupled plenum chamber 2 and moves up and down.CO
2Gas sensor 33 is installed on the upper furnace body 5, in each plenum chamber 2 temperature thermocouple 32 is installed all.
As shown in Figure 3, Figure 4, the section of the jet plate 14 at place, plenum chamber 2 air outlets is a waviness, and the trough place is provided with high-temperature gas squit hole 24, and the crest place is provided with square waste gas recovery holes 25.On plenum chamber 2, high-temperature gas squit hole 24 is near glass sheets roller-way 13, and waste gas recovery holes 25 is away from glass sheets roller-way 13, and pipeline 9 is communicated with waste gas recovery holes 25 with the body of heater inner chamber, and isolates mutually with plenum chamber 2 inner chambers.The waviness section of jet plate 14 can be uniform waviness, also can be the inconsistent non uniform wave shape wave of each crest, wave trough position.Because of the jet plate 14 of plenum chamber 2 in the upper furnace body 5 directly in the face of being heated sheet glass 12, and be separated with glass sheets roller-way 13 mutually between the jet plate 14 of plenum chamber 2 and sheet glass 12 lower surfaces in the lower furnace body 1, therefore, for sheet glass 12 upper and lower surfaces are heated evenly, the shape of the jet plate of plenum chamber 2 can be made different shapes in the upper and lower body of heater.In order to make sheet glass 12 each position unanimity of being heated in upper furnace body 5 or in the lower furnace body 1, each plenum chamber 2 and jet plate thereof also can be made into and have different shapes in upper furnace body 5 or the lower furnace body 1.
Fuel conveying and the air feed and the smoke exhaust pipe line structure figure of four groups of heat accumulating type flame radiaton pipe heaters in four plenum chambers 2 only draw among Fig. 5, Fig. 6, as shown in the figure, heat accumulating type flame radiaton pipe heater 10 is made of a radiator tube 102 and a pair of main burner 101, be provided with heat storage in the main burner 101, two main burners, 101 airtight radiator tube 102 two ends that are installed in.Radiator tube 102 is a linear, is made by high temperature steel.Heat storage in the main burner 101 is ceramic heat-storing sphere or ceramic honeycomb heat storage.
Match with heat accumulating type flame radiaton pipe heater 10, body of heater is outside equipped with corresponding main fuel gas transportation pipeline 26, air supply line 29 and smoke discharging pipe 30.Delivery of main fuel pipeline 26 flows to each main burner 101 by subtube 19 with fuel, be provided with solenoid electric valve 18 on the every subtube 19, four main burners 101 in two heat accumulating type flame radiaton pipe heaters 10 in each plenum chamber 2 join with delivery of main fuel pipeline 26 by a public ratio adjusting valve 27.The blast inlet and the smoke outlet of the main burner 101 in two heat accumulating type flame radiaton pipe heaters 10 in each plenum chamber 2 are connected with each other, and link to each other with air supply line 29, smoke discharging pipe 30 by one or two position four-way valve 21.Under the control of two position four-way valves 21, two main burner 101 alternate combustion in each heat accumulating type flame radiaton pipe heater, alternately smoke evacuation, alternately accumulation of heat, be that one of them main burner 101 is when being communicated with air supply line 29, another main burner 101 is communicated with smoke discharging pipe 30, the main burner 101 burning work that are communicated with air supply line 29, its waste gas after burning enters smoke discharging pipe 30 through radiator tube 102 and another main burner 101, high-temp waste gas heats the heat storage in it through as the main burner 101 of flue the time; Behind main burner 101 burning appropriate times, 21 actions of two position four-way valves, the two main burners 101 and the connected state of air supply line 29 and smoke discharging pipe 30 are switched mutually, former main burner 101 as flue and accumulation of heat takes fire, another main burner 101 transfers smoke evacuation and accumulation of heat to from state of combustion, so circulation; When the main burner 101 after the accumulation of heat burns work, enter the fuel of burner and combustion air before burning at first by the heat storage preheating, the heat storage that is provided with in the therefore main burner 101 not only makes combustion flame temperature improve, and can the heat in the waste gas be reclaimed, and the utilization ratio of combustion heat energy is provided.Be provided with volume control damper 28 between each two position four-way valve 21 and the air supply line 29, this volume control damper 28 is by connecting rod (not shown) and ratio adjusting valve 27 interlocks.
According to actual needs, radiator tube 102 also can be made into W shape or U-shaped.
After in each plenum chamber 2, temperature thermocouple 32 being set, can the temperature of each plenum chamber be detected in real time, when a certain regional temperature of appearance is unusual, can in time regulate this regional temperature by the fuel duty of adjusting this zone heat accumulating type flame radiaton pipe.CO is set in the body of heater
2Behind the gas sensor 33, when its detected result shows the intravital CO of stove
2When gas concentration is unusual, illustrates that may there be damaged situation in the intravital heat accumulating type flame radiaton of stove pipe heater 10, thereby can be used to monitor the working condition of well heater, to guarantee operator's safety.
When the present invention works, the sheet glass input aperture 3 of sheet glass 12 to be heated one side along arrow A among Fig. 1 from body of heater enters body of heater, and be bearing on the glass sheets roller-way 13, blower fan 8 is sent into gas in each plenum chamber 2 along arrow C among Fig. 1, the gas that enters plenum chamber 2 becomes high-temperature gas by well heater 10, high-temperature gas after the heating sprays on the sheet glass 12 from the high-temperature gas squit hole 24 on the jet plate 14, lower surface, carry out waste gas after the convective heat exchange with sheet glass 12 and enter body of heater inner chamber from waste gas recovery holes 25 and pipeline 9 along arrow H Fig. 1 away from sheet glass 12, and be inhaled into blower fan 8 along arrow D among Fig. 1 by the through hole that is provided with on the body of heater, blower fan 8 is transported to plenum chamber 2 once more with the waste gas that sucks, make it to reenter circulation, and so forth.After the completion of processing, sheet glass delivery port 11 outputs of sheet glass 12 along arrow B among Fig. 1 from the body of heater opposite side.
With plenum chamber 2 can move up and down be installed in the lower furnace body after, not only be convenient to maintenance, the maintenance of plenum chamber 2, and be convenient to the replacing and the maintenance of plenum chamber 2 internal heaters.
In last lower furnace body, cover by the mode that a plurality of plenum chambers 2 are set respectively and be heated glass surface, not only be convenient to processing, installation, maintenance, the maintenance of plenum chamber 2, and make the distribution of each position heating power in the body of heater convenient, help control simultaneously to the glass heats state.Because plenum chamber 2 is divided in upper furnace body 5 and the lower furnace body 1, and each plenum chamber 2 is relatively independent, therefore, can the quantity of plenum chamber and the position of each plenum chamber be set targetedly according to the particular case that is heated lower surface on glass.Plenum chamber in the last lower furnace body can be symmetrical arranged, and also can asymmetricly be provided with, and the heating power of electric heater can be identical in each plenum chamber, also can be different, and volume, the structure of each plenum chamber are identical, but also each tool appropriate configuration and size.
Convection type glass plate heating furnace of the present invention also can be made vertical as required, and sheet glass is by overhead chain conveyor structure turnover process furnace, at this moment only needs heat accumulating type flame radiaton pipe is vertically set in the body of heater of sheet glass both sides to get final product.
Only be a kind of embodiment of the present invention shown in the accompanying drawing, protection scope of the present invention is not played any qualification effect, any other embodiment that design philosophy according to the present invention has been done is all within protection scope of the present invention.
Claims (11)
1. a convection type glass plate heating furnace comprises body of heater, and body of heater is provided with sheet glass and imports and exports, and is provided with glass sheets mechanism in the body of heater; It is characterized in that, at least one side of glass sheets passage is provided with the high temperature air jet device in the body of heater, this high temperature air jet device surface is to being heated the densely covered high-temperature gas ejiction opening of sheet glass one side, the high temperature air jet device, blower and pipeline and body of heater inner chamber constitute a gas circulation loop, wherein the body of heater inner chamber is communicated with fan air inlet, high-temperature gas ejiction opening on the high temperature air jet device and the gas channel between the blower fan are provided with the flame radiaton pipe heater, finish heating to the gas in the above-mentioned gas circulation loop by this flame radiaton pipe heater.
2. convection type glass heats stove as claimed in claim 1, it is characterized in that, described flame radiaton pipe heater is a heat accumulating type flame radiaton pipe heater, this heat accumulating type flame radiaton pipe heater is made of a radiator tube and a pair of main burner, be provided with heat storage in the main burner, the airtight radiator tube two ends that are installed in of two main burners, match with it, body of heater is outside equipped with corresponding fuel tube, air supply line and smoke discharging pipe, blast inlet on the two main burners is by one or two position four-way valve and air supply line, smoke discharging pipe links to each other, under the control of two position four-way valves, two main burner alternate combustion, alternately accumulation of heat, alternately smoke evacuation is provided with separate control valve on the fuel tube of two main burners.
3. convection type glass heats stove as claimed in claim 2 is characterized in that, described heat storage is ceramic heat-storing sphere or ceramic honeycomb heat storage.
4. convection type glass heats stove as claimed in claim 3, it is characterized in that, described heat accumulating type flame radiaton pipe heater is directly installed in the described high temperature air jet device, or be installed in the connecting tube between described high temperature air jet device and the described blower fan, or be inserted on the gas channel between described high temperature air jet device and the described blower fan by an airtight housing.
5. convection type glass heats stove as claimed in claim 4 is characterized in that, is provided with CO in the described body of heater
2Gas sensor.
6. convection type glass heats stove as claimed in claim 5, it is characterized in that, described high temperature air jet device is made of pipeline, this pipeline coiling is arranged or arranged, wherein each pipeline during arranged is linear or waviness, and be interconnected, described high-temperature gas ejiction opening is made of the high-temperature gas nozzle or the high-temperature gas squit hole that are arranged on the pipeline.
7. convection type glass heats stove as claimed in claim 5, it is characterized in that, described high temperature air jet device is made of at least one plenum chamber, this plenum chamber is airtight casing, it is provided with inlet mouth and air outlet, inlet mouth links to each other with described blower fan by pipeline, the place, air outlet is provided with jet plate, the high-temperature gas squit hole gathers on the jet plate, jet plate is towards being heated the sheet glass setting, and and be heated spacing is arranged between the sheet glass, be provided with at least one heat accumulating type flame radiaton pipe heater in each plenum chamber, be respectively arranged with temperature sensor in each plenum chamber.
8. convection type glass heats stove as claimed in claim 7 is characterized in that, also is provided with the waste gas recovery holes on the described jet plate, and this waste gas recovery holes is by the body of heater intracavity inter-connection of pipeline and plenum chamber outside.
9. convection type glass heats stove as claimed in claim 8, it is characterized in that, described jet plate is the waviness plate, and described high-temperature gas squit hole is distributed near the trough place that is heated glass pane surface, and described waste gas recovery holes is arranged on away from the crest place that is heated glass pane surface.
10. convection type glass heats stove as claimed in claim 9, it is characterized in that, described two position four-way valves are corresponding one by one with described plenum chamber, be provided with volume damper between each two position four-way valve and the described air supply line, be provided with a public ratio adjusting valve in each plenum chamber between each heat accumulating type flame radiaton pipe heater and the described fuel tube, this public ratio adjusting valve is positioned on the fuel gas transportation pipeline of described control valve upstream, links mutually with corresponding ratio adjusting valve of same plenum chamber and volume damper.
11. the convection type glass heats stove of stating as claim 10, it is characterized in that, described body of heater is a horizontal, comprise upper furnace body, lower furnace body, roller bed type glass sheets mechanism is installed on the lower furnace body, in this mechanism, on the below, at least one described plenum chamber all is installed in the lower furnace body, wherein the plenum chamber in the upper furnace body can move up and down by suspension gear and be installed on the upper furnace body, plenum chamber in the lower furnace body is supported on the lifting device moving up and down that is provided with in the lower furnace body, described suspension gear is a bolt and nut mechanism, plenum chamber is suspended on the screw rod by nut, screw rod is fixed on the upper furnace body, its the upper end be arranged on the body of heater roof on operating mechanism link to each other, this operating mechanism is the worm and gear operating mechanism, or gear or sprocket wheel operating mechanism, described lifting device is a screw rod, lift nut mechanism, described plenum chamber and nut fix, and link to each other with screw rod by nut, screw rod is rotatable to be installed on the lower furnace body, screw rod and worm and gear operating mechanism or gear or sprocket wheel operating mechanism link to each other, and can rotation under operating mechanism is handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100463866A CN1293002C (en) | 2004-06-08 | 2004-06-08 | Convective glass sheet heating furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100463866A CN1293002C (en) | 2004-06-08 | 2004-06-08 | Convective glass sheet heating furnaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1583616A CN1583616A (en) | 2005-02-23 |
| CN1293002C true CN1293002C (en) | 2007-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100463866A Expired - Fee Related CN1293002C (en) | 2004-06-08 | 2004-06-08 | Convective glass sheet heating furnaces |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI124601B (en) * | 2010-09-22 | 2014-10-31 | Glaston Services Ltd Oy | Munstyckskroppskonstruktion |
| CN102690048B (en) * | 2011-03-25 | 2015-03-11 | 洛阳北方玻璃技术股份有限公司 | Heating method of heating furnace for glass tempering |
| CN102690047A (en) * | 2011-03-25 | 2012-09-26 | 洛阳北方玻璃技术股份有限公司 | Heating furnace for glass tempering |
| CN106698907A (en) * | 2016-11-10 | 2017-05-24 | 天津南玻节能玻璃有限公司 | Heat treatment device for hot bending of glass |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006390A1 (en) * | 2001-07-11 | 2003-01-23 | Feracitas Oy | Method for conducting heat to a glass sheet |
| CN2701860Y (en) * | 2004-06-08 | 2005-05-25 | 赵雁 | Convection type glass plate heating furnace |
-
2004
- 2004-06-08 CN CNB2004100463866A patent/CN1293002C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006390A1 (en) * | 2001-07-11 | 2003-01-23 | Feracitas Oy | Method for conducting heat to a glass sheet |
| CN2701860Y (en) * | 2004-06-08 | 2005-05-25 | 赵雁 | Convection type glass plate heating furnace |
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| CN1583616A (en) | 2005-02-23 |
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