CN114804610A - Area-controllable air floatation heating device and control method thereof - Google Patents
Area-controllable air floatation heating device and control method thereof Download PDFInfo
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- CN114804610A CN114804610A CN202110087651.9A CN202110087651A CN114804610A CN 114804610 A CN114804610 A CN 114804610A CN 202110087651 A CN202110087651 A CN 202110087651A CN 114804610 A CN114804610 A CN 114804610A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 105
- 230000000712 assembly Effects 0.000 claims abstract description 14
- 238000000429 assembly Methods 0.000 claims abstract description 14
- 238000007667 floating Methods 0.000 claims description 12
- 230000005570 vertical transmission Effects 0.000 claims description 10
- 238000007664 blowing Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005496 tempering Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/22—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands on a fluid support bed, e.g. on molten metal
- C03B35/24—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands on a fluid support bed, e.g. on molten metal on a gas support bed
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention provides an air-floatation heating device with controllable area and a control method thereof, wherein the air-floatation heating device comprises: the glass heating device comprises two groups of hot air assemblies which are arranged oppositely up and down, wherein the two groups of hot air assemblies form a heating channel for conveying and heating glass, each group of hot air assemblies consists of a plurality of heating units, each heating unit comprises an air box and a heating assembly arranged in the air box, and an air outlet is formed in the position, facing the heating channel, of the air box; the plurality of vertical conveying rollers are uniformly arranged along the heating channel and are distributed on the same side of the hot air component positioned below; a sensor assembly disposed at an inlet of the heating channel for detecting width, thickness and length dimensions of the glass; the controller is connected with all the heating units and the sensor assembly and controls the heating assembly in each heating unit to be started or stopped. According to the invention, the sensor, the heating units and the controller are effectively combined, so that the size of the glass is effectively obtained, the heating units can be reasonably and effectively arranged for blowing and heating, the energy consumption is reduced, and the glass toughening cost is saved.
Description
Technical Field
The invention relates to the technical field of thin glass tempering, in particular to the technical field of an air-flotation heating device with a controllable area.
Background
Thin glass tempering is one of the technical difficulties faced in the field of glass deep processing. Generally, a common glass toughening system mainly comprises an upper plate, a heating section, a quenching section, a cooling section, a lower plate and the like. The heating section of the common toughening furnace adopts roller way conveying heating, and the glass is always contacted with the roller way in the heating process. However, this method has a great difficulty in the case of thin glass having a thickness of 2mm or less. When the thin glass is heated to 630 ℃, if the thin glass is continuously heated in a roller way mode, deformation is easy to generate, and the flatness of the toughened glass is seriously influenced. The prior art also mentions that the heating is performed in the form of an air cushion, which is all directed to heating thin glass of a specific size. If the size of the furnace is changed to be smaller, the tempering furnace still adopts full plate blowing, thus greatly wasting energy.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides an air-floating heating device with a controllable area, which is used to solve the problems that a tempering furnace still uses full-plate blowing in the prior art, and glass is easily deformed by being touched by a roller way due to softening when being conveyed by the roller way.
To achieve the above and other related objects, the present invention provides an area-controllable air-floating heating device, comprising:
the glass heating device comprises two groups of hot air assemblies which are arranged oppositely up and down, wherein a gap is formed between the two groups of hot air assemblies to form a heating channel for conveying and heating glass, each group of hot air assemblies comprises a plurality of heating units arranged in an array mode, each heating unit comprises an air box and a heating assembly arranged in the air box, and an air outlet is formed in the side face, facing the heating channel, of the air box;
the vertical conveying rollers are uniformly arranged along the heating channel and are distributed on the same side of the hot air component positioned below;
a sensor assembly disposed at an inlet of the heating channel for detecting width, thickness and length dimensions of the glass;
and the controller is connected with all the heating units and the sensor assembly and controls the heating assembly in each heating unit to be started or closed.
Preferably: the air box is connected with a fan, and the fan is connected with the controller.
Preferably: the hot air assembly comprises a wind grid plate arranged on the wind outlet side of the air box, the wind grid plate is in a fluctuant shape with concave and convex alternate distribution, wherein the convex surface is provided with a gas outlet hole, and the concave surface is used as a gas exhaust surface.
Preferably: on the convex surface, a plurality of rows of air outlet holes are arranged along the conveying direction of the heating channel, and the air outlet directions of the two rows of air outlet holes positioned on the edge side are obliquely arranged towards the concave side.
Preferably: in the direction perpendicular to glass direction of delivery, glass be to vertical transmission roller incline, and personally submit 1 ~ 5 contained angles with the level.
A control method of an area-controllable air-floating heating device, which is characterized by adopting the area-controllable air-floating heating device, the control method comprises the following steps:
firstly, the glass is transported to the inlet of the heating channel from the previous station, and the sensor assembly detects the width and length dimensions of the glass and feeds the width and length dimensions back to the controller;
and step two, the controller controls the heating unit matched with the glass in size to be started according to the detected glass size data, so that the glass is conveyed and heated in an air floatation mode.
Preferably, the step two includes: the feeding speed of the glass is preset in the controller, and in the glass conveying process, the controller calculates the time point when the glass runs to each heating unit and the time point when the glass leaves the heating units according to the feeding speed, the length size detected in the first step and the position coordinates of each heating unit, and controls the heating units to be opened and closed. As described above, the area-controllable air-floating heating device of the present invention has the following beneficial effects:
according to the invention, the sensor, the heating units and the controller are effectively combined, so that the size of the glass is effectively obtained, and the heating units can be reasonably and effectively arranged for blowing and heating, so that the energy consumption is reduced, and the glass toughening cost is saved; in addition, the glass is conveyed and heated in a floating state, so that the deformation caused by the fact that the glass is easily touched by a roller way due to softening when the glass is conveyed by the roller way is avoided; in addition, the surface of the whole wind grid plate can realize blowing to the glass plate through the arranged wind grid plate, so that the effects of uniformity and quick heating are realized. In addition, the cooperation of the general controller and the fan enables the glass to incline according to the set angle.
Drawings
FIG. 1 is a front view of an area-controllable air-floating heating apparatus according to the present invention;
FIG. 2 is a top view of a wind grid plate of an area controllable air-bearing heating apparatus of the present invention;
FIG. 3 is a perspective view of a wind grid plate of an area controllable air-bearing heating apparatus of the present invention;
FIG. 4 is a cross-sectional view of a wind grate of an area controllable air-bearing heating apparatus of the present invention;
FIG. 5 is a schematic view of the contact between the vertical conveying roller and the glass in the area-controllable air-float heating device of the invention;
FIG. 6 is a schematic view of an area-controlled air-bearing heating apparatus and glass according to the present invention;
FIG. 7 is a schematic diagram of a sensor of an area-controlled air-float heating device for measuring glass thickness according to the present invention;
FIG. 8 is a schematic diagram illustrating a position relationship of a second blowing stage of the area-controllable air-floating heating apparatus according to the present invention.
Description of the element reference numerals
01 glass
1 Hot air component
11 wind grid plate
111 convex surface
111A inclined air outlet
111B positive air outlet
112 concave surface
2 heating channel
3 heating unit
31 bellows
32 heating assembly
4 vertical conveying roller
41 rotating shaft
5 sensor assembly
6 controller
7 blower fan
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 8. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the present invention provides an area-controllable air-floating heating device, comprising:
two sets of hot-blast subassemblies 1 to setting up from top to bottom, have the space in order to form the heating channel 2 of carrying and heating glass between two sets of hot-blast subassemblies 1, and every hot-blast subassembly 1 of group comprises the heating unit 3 that a plurality of arrays set up, and every heating unit 3 includes bellows 31 and locates the heating element 32 in bellows 31, is equipped with the air outlet on the side of bellows 31 orientation heating channel 2.
A plurality of vertical transmission rollers 4, a plurality of vertical transmission rollers 4 evenly set up and distribute in the same one side of hot-blast subassembly 1 that is located the below along heating passageway 2.
A sensor assembly 5 disposed at an inlet of the heating passage 2 for detecting width, thickness and length dimensions of the glass 01;
and the controller 6 is connected with all the heating units 3 and the sensor assembly 5, and controls the heating assembly 32 in each heating unit 3 to be started or stopped. In this embodiment, as shown in fig. 1, the upper hot air assembly 1 can heat the upper surface of the glass 01, and the lower hot air assembly 1 can heat the lower surface of the glass 01; in addition, a plurality of heating units 3 are arranged along the heating channel on the upper side hot air assembly 1 and the lower side hot air assembly 1, and each heating unit 3 is connected with a fan 7 and an internal heating assembly 32; preferably, the heating assembly 32 is an electric heating wire; the controller 6 is communicatively connected to the fan 7 and the heating assembly 32. The hot air assembly 1 on the upper side and the hot air assembly 1 on the lower side can control air pressure and heating in a subsection mode along the direction of the heating channel 2, real-time control is achieved according to the length of the glass 01, and the influence of energy waste and overheating on the glass 01 caused by the fact that all the heating units 3 work together is avoided.
In the present embodiment, as shown in fig. 1 and 5 in combination, the vertical transfer roller 4 rotates in the axial direction of the rotating shaft 41, so that the side surface of the glass 01 moves the glass 01 toward the outlet of the heating passage 2 by the rotation of the vertical transfer roller 5.
In the present embodiment, as shown in fig. 6 and 7, the sensor assembly 5 may be a kind of optical sensor, and the number of the sensors is 2; the 2 sensors are all arranged at the inlet of the heating channel 2, one of the sensors is arranged below the upper hot air component 1, the other sensor is arranged above the lower hot air component 1, so that the distance D1 from the upper sensor to the upper side of the glass 01, the distance D2 from the lower sensor to the lower side of the glass 01 and the distance S between the two sensors can be obtained in real time, and the thickness W of the glass 01 is S-D1-D2 according to the formula, and the thickness of the glass 01 is obtained.
In addition, the length L of the glass 01 is obtained as vt according to the formula according to the sensing time of the optical sensor (v is the moving speed of the glass 01 obtained according to the rotating speed of the vertical conveying roller 5 and is a preset value, and t is the time of the optical sensor sensing the glass 01).
In this embodiment, as shown in fig. 2 and 3, the hot air assembly 1 includes a wind grid plate 11 disposed on the wind outlet side of the wind box, the wind grid plate 11 is in a concave-convex alternately distributed undulated shape, wherein the convex surface 111 is provided with a gas outlet, and the concave surface 112 is used as a gas exhaust surface; give vent to anger through convex surface 111, concave surface 112 exhausts, and concave surface 112 forms sunken passageway and can make the giving vent to anger of venthole discharge from this, avoids giving vent to anger and can't flow out the deformation that causes glass 01.
In this embodiment, as shown in fig. 4, a plurality of rows of air outlet holes are arranged on the convex surface 111 along the conveying direction of the heating channel 2, and the air outlet directions of two rows of air outlet holes at the edge side are inclined toward the concave surface 112 side; specifically, each of the convex surfaces 111 is provided with two rows of oblique air outlets 111A and one or two rows of positive air outlets 111B. Each row of diagonal outlet holes 111A is inclined toward the adjacent recess 112. Specifically, the concave surface 112 forms a channel at the concave position, so that the gas sprayed from the inclined gas outlet hole 111A and the forward gas outlet hole 111B can flow out of the channel, and deformation of the glass 01 caused by the gas which cannot flow out of the channel is avoided. As shown in fig. 4, a positive air outlet 111B is provided to directly eject air flow in the vertical direction, thereby directly applying wind pressure to the glass 01; the inclined air outlet 111A is provided to prevent the glass 01 facing the concave surface 112 from being deformed due to a recess caused by no wind pressure.
In addition, as shown in fig. 2, the width of the glass 01 is smaller than that of the wind grid plate 11, so when the wind is blown and heated, only one row of the glass 01 in the transverse direction needs to work, and the following control method needs to be combined specifically; when the width of the glass 01 is larger than that of the wind-screen plate 11, two rows in the lateral direction in fig. 2 are required to be operated.
In order to enable one side of the glass 01 to be attached to the plurality of vertical transmission rollers 4, the glass 01 is inclined towards the vertical transmission rollers 4, one side of the glass 01 attached to the plurality of vertical transmission rollers 4 is lower than the other side of the glass 01, and preferably, an included angle of 1-5 degrees is formed between the glass 01 and the horizontal plane; thus, the energy waste of the fan 7 caused by excessive blowing is avoided.
In addition to the above embodiment, the present invention further includes a control method including:
firstly, glass 01 enters a heating channel 2 from the previous station, and a sensor assembly 5 starts to detect the size of the glass 01; the dimensions include the length L of the glass 01 and the thickness W of the glass 01; and feeds back data to the controller 6;
step two, the upper hot air component 1 and the lower hot air component 1 apply heating wind pressure simultaneously to enable the glass 01 to float in the heating channel 2; and the plurality of vertical transmission rollers 4 work to enable one side of the glass 01 to move towards the outlet of the heating channel 2 by means of the driving of the plurality of vertical transmission rollers 4 until the glass leaves the heating channel 2. By the movement mode, the adverse effect of deformation caused by continuous heating in a roller way mode when the glass 01 is heated to 630 ℃ is avoided. In addition, the second step specifically comprises the following steps:
the controller 6 is based on the preset feeding speed v (from the vertical conveying roller 4) of the glass 01, the length L of the glass 01 and the coordinates of each heating unit 3; specifically, the distance D3 from the inlet of the heating tunnel 2 to the left side of each heating unit 3, and the distance D4 from the inlet of the heating tunnel 2 to the right side of each heating unit 3; as shown in fig. 8, taking the example of the heating units 3 counted from left to right, the left side thereof is a distance D3 from the entrance of the heating tunnel 2, and the right side thereof is a distance D4 from the entrance of the heating tunnel 2. (ii) a
According to equation 1: t1 ═ D3/v
According to equation 2: t2 ═ D4+ L)/v
The time point t1 when the glass 01 enters each heating unit 3 and the time point t2 when it leaves each heating unit 3 are calculated.
The controller 6 controls the heating unit 3 to operate according to a time point t1 when entering a certain heating unit 3, so that the fan 7 and the heating assembly 32 in the heating unit 3 are turned on; the controller 6 controls the heating unit 3 to be turned off according to a time point t2 when the glass 01 is located outside the facing range, so that the fans 7 and the heating assemblies 32 of the heating units 3 in the heating unit 3 are turned off to operate the fans 7 and the heating assemblies 32 of the heating assemblies 3 in the facing range of the glass 01, and the fans 7 and the heating assemblies 32 of the heating assemblies 32 in the facing range of the glass 01 are turned off.
In conclusion, the sensor, the heating units 3 and the controller 6 are effectively combined, so that the size of the glass 01 is effectively obtained, the heating units 3 can be reasonably and effectively arranged for blowing and heating, the energy consumption is reduced, and the glass tempering cost is saved; in addition, the glass 01 is conveyed and heated in a floating state, so that the deformation result caused by the fact that the glass 01 is easily touched by a roller way due to softening when the glass is conveyed by the roller way is avoided; in addition, the whole surface of the wind grid plate 11 can realize the blowing of the glass plate 01 through the arranged wind grid plate 11, so that the uniform and quick heating effect is realized. In addition, the cooperation of the controller 6 and the fan 7 enables the glass 01 to be inclined according to a set angle; in addition, the glass 01 is driven to move rightwards by the contact of the plurality of vertical transmission rollers 4 with one side of the glass 01, and the moving speed of the glass 01 is effectively controlled.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. An area-controllable air-floatation heating device, characterized by comprising:
the glass heating device comprises two groups of hot air assemblies which are arranged oppositely up and down, wherein a gap is formed between the two groups of hot air assemblies to form a heating channel for conveying and heating glass, each group of hot air assemblies comprises a plurality of heating units arranged in an array mode, each heating unit comprises an air box and a heating assembly arranged in the air box, and an air outlet is formed in the side face, facing the heating channel, of the air box;
the vertical conveying rollers are uniformly arranged along the heating channel and are distributed on the same side of the hot air component positioned below;
a sensor assembly disposed at an inlet of the heating channel for detecting width, thickness and length dimensions of the glass;
and the controller is connected with all the heating units and the sensor assembly and controls the heating assembly in each heating unit to be started or closed.
2. An area-controllable air-bearing heating device as claimed in claim 1, wherein: the air box is connected with a fan, and the fan is connected with the controller.
3. An area-controllable air-bearing heating device as claimed in claim 1, wherein: the hot air assembly comprises a wind grid plate arranged on the wind outlet side of the air box, the wind grid plate is in a fluctuant shape with concave and convex alternate distribution, wherein the convex surface is provided with a gas outlet hole, and the concave surface is used as a gas exhaust surface.
4. An area-controllable air-bearing heating device as claimed in claim 3, wherein: on the convex surface, a plurality of rows of air outlet holes are arranged along the conveying direction of the heating channel, and the air outlet directions of the two rows of air outlet holes positioned on the edge side are obliquely arranged towards the concave side.
5. An area-controllable air-bearing heating device as claimed in claim 1, wherein: in the direction perpendicular to glass direction of delivery, glass be to vertical transmission roller incline, and personally submit 1 ~ 5 contained angles with the level.
6. A method of controlling an area-controllable air-floating heating apparatus, which employs an area-controllable air-floating heating apparatus according to any one of claims 1 to 5, the method comprising:
firstly, the glass is transported to the inlet of the heating channel from the previous station, and the sensor assembly detects the width and length dimensions of the glass and feeds the width and length dimensions back to the controller;
and step two, the controller controls the heating unit matched with the glass in size to be started according to the detected glass size data, so that the glass is conveyed and heated in an air floatation mode.
7. The method as claimed in claim 6, wherein the second step comprises: the feeding speed of the glass is preset in the controller, and in the glass conveying process, the controller calculates the time point when the glass runs to each heating unit and the time point when the glass leaves the heating units according to the feeding speed, the length size detected in the first step and the position coordinates of each heating unit, and controls the heating units to be opened and closed.
Priority Applications (1)
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CN202110087651.9A CN114804610B (en) | 2021-01-22 | 2021-01-22 | Area-controllable air floatation heating device and control method thereof |
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CN202110087651.9A CN114804610B (en) | 2021-01-22 | 2021-01-22 | Area-controllable air floatation heating device and control method thereof |
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CN114804610B CN114804610B (en) | 2024-01-26 |
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CN104211288A (en) * | 2014-08-25 | 2014-12-17 | 中国南玻集团股份有限公司 | Glass tempering processing system and glass air cushion heating device thereof |
US20150315058A1 (en) * | 2013-01-11 | 2015-11-05 | Asahi Glass Company, Limited | Method and apparatus for manufacturing tempered glass |
CN105271666A (en) * | 2015-11-05 | 2016-01-27 | 中国建材国际工程集团有限公司 | Air-floating heating device and method used for toughening glass |
CN107161698A (en) * | 2017-06-08 | 2017-09-15 | 中国建材国际工程集团有限公司 | Glass air-floatation opposite side conveying device and glass air-floatation opposite side carrying method |
CN110698045A (en) * | 2019-11-05 | 2020-01-17 | 中国建材国际工程集团有限公司 | Multi-zone temperature-controllable air-flotation thin glass heating device and working method thereof |
CN211255684U (en) * | 2019-11-05 | 2020-08-14 | 中国建材国际工程集团有限公司 | Controllable air supporting of multizone temperature heats thin glass's device |
-
2021
- 2021-01-22 CN CN202110087651.9A patent/CN114804610B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150315058A1 (en) * | 2013-01-11 | 2015-11-05 | Asahi Glass Company, Limited | Method and apparatus for manufacturing tempered glass |
CN104211288A (en) * | 2014-08-25 | 2014-12-17 | 中国南玻集团股份有限公司 | Glass tempering processing system and glass air cushion heating device thereof |
CN105271666A (en) * | 2015-11-05 | 2016-01-27 | 中国建材国际工程集团有限公司 | Air-floating heating device and method used for toughening glass |
CN107161698A (en) * | 2017-06-08 | 2017-09-15 | 中国建材国际工程集团有限公司 | Glass air-floatation opposite side conveying device and glass air-floatation opposite side carrying method |
CN110698045A (en) * | 2019-11-05 | 2020-01-17 | 中国建材国际工程集团有限公司 | Multi-zone temperature-controllable air-flotation thin glass heating device and working method thereof |
CN211255684U (en) * | 2019-11-05 | 2020-08-14 | 中国建材国际工程集团有限公司 | Controllable air supporting of multizone temperature heats thin glass's device |
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