CN113620576B - Float glass annealing kiln structure - Google Patents
Float glass annealing kiln structure Download PDFInfo
- Publication number
- CN113620576B CN113620576B CN202111114290.9A CN202111114290A CN113620576B CN 113620576 B CN113620576 B CN 113620576B CN 202111114290 A CN202111114290 A CN 202111114290A CN 113620576 B CN113620576 B CN 113620576B
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- area
- curtain
- transition
- buffer
- glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
- C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
- C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
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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
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
Abstract
The application discloses a float glass annealing kiln structure, wherein a buffer assembly is arranged in a transition area; a sealing plate is arranged above the glass ribbon in the transition zone; the buffer assembly includes: a buffer tank disposed within the transition zone; a wind pressure gauge passing through the sealing plate for detecting the pressure in the buffer zone; and at least 1 pressure relief valve arranged on the buffer tank. According to the technical scheme, the buffer assembly is arranged in the transition area of the annealing kiln, the buffer assembly comprises an air pressure gauge and is used for detecting the pressure of the transition area in real time, the buffer assembly is provided with a pressure release valve, when the pressure of the transition area exceeds an empirical value, the air pressure of the transition area can be properly reduced through the pressure release valve so as to reduce the temperature fluctuation of the transition area and two adjacent areas, and further reduce the plate frying frequency of glass in a slow cooling area (area C) and a rapid cooling area (RET area); when the thin glass is produced, the temperature is more stable, and the straightness is better.
Description
Technical Field
The present disclosure relates generally to the field of glass making, and more particularly to a float glass annealing lehr structure.
Background
In the float glass production industry, molten glass is melted in a kiln, the melted molten glass passes through a forming area (a tin bath) and is used for producing glass with the specification required by a customer under the action of auxiliary equipment, a glass plate passes through the forming area at about 620 ℃ and enters an annealing kiln for cooling the glass plate, and the cooling purpose is mainly to eliminate or weaken the residual stress in the glass plate; the glass plate is gradually cooled and stress-relieved through the areas such as a heating soaking pre-annealing area (A area), an annealing area (B area), a slow cooling area (C area), a transition area (D area), a rapid cooling area (RET area and F area) and the like in sequence, and the requirement of online cutting is met.
As shown in figure 1, the original annealing kiln structure comprises a heating soaking pre-annealing area (area A), an annealing area (area B), a slow cooling area (area C), a transition area (area D), a rapid cooling area (area RET and area F) and the like, wherein the length of the transition area (area D) is 2-3 meters generally, and the upper part of the transition area is formed by sealing steel plates.
In the prior art, because the air series flow among a slow cooling area, a transition area and a rapid cooling area is serious, the temperature fluctuation is large, and the following problems are caused:
1) The frequency of plate frying in the slow cooling area (area C) and the rapid cooling area (RET area) is high, and the rate of finished products is influenced;
2) The bending degree of the product is large when the thin glass is produced.
Disclosure of Invention
In view of the above-mentioned deficiencies or shortcomings of the prior art, it would be desirable to provide a float glass annealing lehr structure having a slow cooling zone, a transition zone, and a rapid cooling zone disposed within the lehr; the glass ribbon is conveyed by the conveying roller to sequentially pass through a slow cooling area, a transition area and a rapid cooling area;
the transition area is provided with a buffer component; a sealing plate is arranged above the glass ribbon in the transition zone; the buffer assembly includes:
a buffer tank disposed within the transition zone;
a wind pressure gauge passing through the sealing plate for detecting the pressure in the buffer zone;
and at least 1 pressure relief valve arranged on the buffer tank.
According to the technical scheme provided by the embodiment of the application, the buffer box is arranged on one side close to the rapid cooling area.
According to the technical scheme provided by the embodiment of the application, a first curtain positioned above the glass ribbon is arranged at the boundary of the slow cooling area and the transition area;
a second curtain positioned above the glass ribbon is arranged at the boundary of the transition zone and the rapid cooling zone;
a third curtain positioned above the glass ribbon is arranged in the middle of the transition area;
the first curtain, the second curtain and the third curtain are soft curtains.
According to the technical scheme provided by the embodiment of the application, the soft curtain is a high silica cloth curtain.
According to the technical scheme provided by the embodiment of the application, the bottom of the transition area is provided with a partition below the transmission roller.
According to the technical scheme provided by the embodiment of the application, the partition is arranged between two adjacent transmission rollers, and the top of the partition is in a pointed cone shape.
According to the technical scheme provided by the embodiment of the application, the partition comprises a fixed base and a liftable blocking part.
According to the technical scheme provided by the embodiment of the application, a driving assembly for driving the blocking part to ascend and descend is arranged in the base;
the drive assembly includes:
a rotating handle rotatably mounted on the base; the axis direction of the rotating shaft of the rotating handle is a first direction;
a first helical gear coaxially mounted on a rotating shaft of the rotating handle;
a second bevel gear meshed with the first bevel gear, wherein the axis direction of the second bevel gear is a second direction, and the second direction is perpendicular to the glass ribbon and the first direction;
the threaded rod is in threaded connection with the second bevel gear;
the lifting block is rotatably arranged at the top end of the threaded rod;
the lifting block is fixedly connected with the blocking part.
According to the technical scheme provided by the embodiment of the application, the base is hollow, and the top of the base is opened to form an installation cavity; two groups of roller strips arranged along the conveying direction of the glass ribbon are arranged in the mounting cavity; each group of the roller strip group comprises two roller strips which are arranged up and down; an adjusting conveying belt is tightly tensioned outside the roller strip;
the blocking part is in a hollow pointed cone shape and covers the top of the base; the inner side wall of the blocking part is fixed on the adjacent adjusting transmission belts through connecting rods respectively to coat the top of the base;
an adjusting rod is connected between the adjacent adjusting transmission belts;
and a rotating handle axially extends out of the end part of any roller strip positioned below, and the rotating handle extends out of the side wall of the base.
According to the technical scheme provided by the embodiment of the application, the bottom of the blocking part horizontally extends out of the wind shielding edge.
According to the technical scheme, the buffer assembly is arranged in the transition area of the annealing kiln, the buffer assembly comprises an air pressure gauge and is used for detecting the pressure of the transition area in real time, the buffer assembly is provided with a pressure release valve, when the pressure of the transition area exceeds an empirical value, the air pressure of the transition area can be properly reduced through the pressure release valve so as to reduce the temperature fluctuation of the transition area and two adjacent areas, and further reduce the plate frying frequency of glass in a slow cooling area (area C) and a rapid cooling area (RET area); when the thin glass is produced, the temperature is more stable, and the straightness is better.
According to the technical scheme that this application embodiment provided, through set up first check curtain and second check curtain in transition district and the regional boundary department in both sides, set up the third check curtain in the middle part of transition district, first check curtain, second check curtain and third check curtain are soft check curtain, make and to adjust first check curtain, second check curtain and third check curtain are soft check curtain and glass area's distance, can infinitely press close to the glass area, block crossing the hall wind between the adjacent region effectively, have effectively reduced the temperature and have fluctuated, have further improved glass product quality, still can avoid fish tail glass.
According to the technical scheme that this application embodiment provided, through the bottom in the transition district be in the below of transmission running roller is equipped with the wall, has further alleviated the wind pressure impact in rapid cooling district, has further reduced the temperature fluctuation in slow cooling district.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic view of a prior art annealing lehr;
FIG. 2 is a schematic structural view of an annealing furnace in example 1 of the present application;
FIG. 3 is a schematic view of a partition structure in embodiment 1 of the present application;
FIG. 4 isbase:Sub>A schematic sectional view taken along the line A-A in FIG. 3;
FIG. 5 is a schematic view of the partition structure in example 2 of the present application;
fig. 6 is a schematic sectional structure view of the plane B-B of fig. 5.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to fig. 2, the annealing furnace provided in this embodiment has a structure as shown in fig. 2, and the annealing furnace is provided with a slow cooling area, a transition area and a rapid cooling area; the glass belt is conveyed by the conveying roller to sequentially pass through a slow cooling area, a transition area and a rapid cooling area;
the slow cooling zone corresponds to a zone C in the figure; the transition region corresponds to a D region in the figure; the rapid cooling area corresponds to the RET area in the figure;
the transition area is provided with a buffer component; a sealing plate 20 is disposed above the glass ribbon 10 in the transition zone; the buffer assembly includes:
a surge tank 30 disposed within the transition zone;
a wind pressure gauge 40 passing through the sealing plate 20 for detecting a pressure in the buffer zone;
at least 1 relief valve 50 provided on the buffer tank 30.
In this embodiment, the pressure detected by the wind pressure meter 40 is transmitted to the integrated control chamber through a signal transmission line, when the pressure signal detected by the wind pressure meter is greater than a set value, the integrated control chamber is provided with a control host machine, such as a computer host machine, for receiving the pressure signal, the computer host machine is connected with an alarm device in a control manner, the alarm device can send an alarm signal, and the alarm signal can be an alarm bell or a flashing lamp; or the alarm device is not connected, and the screen flicking prompt is directly carried out on the computer in the comprehensive control room. The set value is an empirical value, and is a pressure value just before the plate frying according to the observation of an operator at ordinary times.
When the number of the wind pressure meters 40 is multiple, the average value of the pressures of the multiple wind pressure meters is taken, and whether the average value exceeds a set value or not is judged to give an alarm.
Preferably, the buffer tank is disposed at a side close to the rapid cooling zone. Because the wind pressure in rapid cooling district is bigger, and is bigger to the influence of temperature fluctuation, consequently with the baffle-box setting in this department, it is better to alleviate the effect of temperature fluctuation. In this embodiment, the baffle-box has certain height, can provide the buffering space, and the relief valve sets up at the top of baffle-box for glass area is kept away from to the position that pressure variation is big during the pressure release, further reduces the temperature fluctuation. In this embodiment, the relief valve is 3, and a plurality of relief valves set up simultaneously and can make a plurality of positions lose heart simultaneously, and the pressure release speed sets up a little, and the pressure release volume in the unit interval is guaranteed to a plurality of relief valves.
Preferably, in this embodiment, the slow cooling zone is separated from the transition zone by a first curtain 51 positioned above ribbon 10;
a second curtain 52 positioned above the glass ribbon is arranged at the boundary of the transition zone and the rapid cooling zone;
a third curtain 53 positioned above the glass ribbon is arranged in the middle of the transition area;
the first curtain 51, the second curtain 52 and the third curtain 53 are soft curtains. In this embodiment, the soft curtain is a high silica cloth curtain.
Because the high silica cloth is soft, the glass can not be damaged even if the high silica cloth is contacted with the glass belt, so the glass belt can be effectively protected, and the glass belt is prevented from being scratched.
Preferably, the height of the high silica cloth blind is adjustable to accommodate glass ribbons of different thicknesses. The height adjustment of the high silica cloth curtain is adjusted by adopting a door curtain rolling mode.
Preferably, the high silica cloth curtain is a double-layer curtain, the upper part between the two layers of high silica cloth curtains is separated by a support frame which is fixedly connected, and the double-layer curtain increases the blocking effect of the curtain; the temperature fluctuations are further reduced.
Preferably, the bottom of the transition zone is provided with a partition 60 below the transfer roller 90. The number of partitions may be plural.
Preferably, the partition 60 is provided between two adjacent transfer rollers 90, and has a tapered top. The partition 60 is arranged in such a way that the glass ribbon can be discharged along the top of the recommended-shaped partition in case of being broken, so that the normal operation of the annealing kiln is guaranteed while the airflow is blocked.
Wherein, the partition comprises a fixed base 61 and a liftable blocking part 62.
According to the technical scheme provided by the embodiment of the application, a driving assembly 70 for driving the blocking part to ascend and descend is arranged in the base;
the drive assembly includes:
a rotating handle 71 rotatably mounted on the base 61; the axial direction of the rotating shaft of the rotating handle 71 is a first direction;
a first bevel gear 72 coaxially mounted on the rotation shaft of the rotation handle 71;
a second bevel gear 75 that meshes with the first bevel gear 72, the second bevel gear 75 having an axis in a second direction that is perpendicular to the glass ribbon 10 and the first direction;
a threaded rod 73 threadedly coupled to the second bevel gear 72;
a lifting block 74 rotatably mounted on the top end of the threaded rod 73;
the lifting block 74 is fixedly connected to the blocking portion 62.
As shown in fig. 4, the rotating shaft of the rotating handle 71 is mounted on the side wall 61-1 of the base 61 through a bearing 64; the bottom surface of the second bevel gear 75 is provided with a support pillar 76 for supporting, the support pillar 76 is fixed on the bottom surface of the hollow cavity of the base 61, the bottom surface of the second bevel gear 75 is rotatably mounted on the top end of the support pillar 76, and the top of the support pillar 76 is provided with an adjusting space 77 into which the threaded rod 73 can be inserted when being lifted, that is, the length of the adjusting space 77 can accommodate the adjustment amount of the threaded rod 73.
Preferably, the threaded rod is disposed in the middle of the bottom surface of the blocking portion 62.
The rotating handle 71 can be rotated to drive the rotating shaft to rotate, so as to drive the first bevel gear 71 to rotate and further drive the second bevel gear 75 meshed with the first bevel gear to rotate, and the threaded rod 73 can be lifted along with the rotation of the second bevel gear 75 due to the threaded connection of the threaded rod and the second bevel gear, so as to drive the separation part to lift.
Example 2
As shown in fig. 5 and 6, in the present embodiment, the driving assembly is replaced with the following structure on the basis of embodiment 1: the base 61 is hollow, and the top of the base is opened to form a mounting cavity 63; two groups of roll bars 81 arranged along the conveying direction of the glass ribbon 10 are arranged in the mounting cavity 63; each group of the roller strip groups comprises two roller strips 81 which are arranged up and down; an adjusting conveying belt 82 is tensioned outside each group of the roller strips 81;
the blocking part 62 is in a hollow pointed cone shape and covers the top of the base 61; the inner side walls of the blocking parts 62 are respectively fixed on the adjacent adjusting transmission belts 82 through connecting rods 84;
an adjusting rod 85 is connected between the adjacent adjusting transmission belts;
the end part of any roller strip positioned below axially extends to form a rotating handle 71, and the rotating handle 71 extends from the side wall of the base.
According to the technical scheme provided by the embodiment of the application, a wind shielding edge 64 horizontally extends out of the bottom of the blocking part 62.
In this embodiment, the lifting of the blocking portion can be realized by rotating the handle 71, and the blocking portion is stably adjusted by the adjusting conveyor belt 82 along the length direction.
Preferably, a circle of limiting block 87 is arranged outside the side wall of the base by taking the central axis of the rotating handle as the center, and the rotating handle is telescopic in the axis direction; when adjusting, the extension of twist grip is pulled out, adjusts the back, shortens it for twist grip card prevents that external force from causing the running roller to go up and down between two adjacent stoppers, when avoiding the descending of glass disintegrating slag, causes separation portion to descend.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (4)
1. A float glass annealing kiln structure is characterized in that a slow cooling area, a transition area and a rapid cooling area are arranged in an annealing kiln; the glass ribbon is conveyed by the conveying roller to sequentially pass through a slow cooling area, a transition area and a rapid cooling area; the method is characterized in that:
the transition area is provided with a buffer component; a sealing plate is arranged above the glass ribbon in the transition zone; the buffer assembly includes:
a buffer tank disposed within the transition zone;
a wind pressure gauge passing through the sealing plate for detecting the pressure in the buffer zone;
at least 1 pressure relief valve arranged on the buffer tank;
a partition is arranged at the bottom of the transition area below the transmission roller;
the partition is arranged between two adjacent conveying rollers, and the top of the partition is in a taper shape;
the partition comprises a fixed base and a liftable partition part;
a driving assembly for driving the blocking part to ascend and descend is arranged in the base;
the drive assembly includes:
a rotating handle rotatably mounted on the base; the axis direction of the rotating shaft of the rotating handle is a first direction;
a first helical gear coaxially mounted on a rotating shaft of the rotating handle;
a second bevel gear meshed with the first bevel gear, wherein the axis direction of the second bevel gear is a second direction, and the second direction is perpendicular to the glass ribbon and the first direction;
the threaded rod is in threaded connection with the second bevel gear;
the lifting block is rotatably arranged at the top end of the threaded rod; the buffer box is arranged at one side close to the rapid cooling area;
a first curtain positioned above the glass ribbon is arranged at the boundary of the slow cooling area and the transition area;
a second curtain positioned above the glass ribbon is arranged at the boundary of the transition zone and the rapid cooling zone;
a third curtain positioned above the glass ribbon is arranged in the middle of the transition area;
the first curtain, the second curtain and the third curtain are soft curtains.
2. The float glass lehr structure of claim 1, wherein the soft curtain is a high silica cloth curtain.
3. The float glass annealing lehr construction of claim 1, wherein the drive assembly is replaced with the following construction: the base is hollow, and an opening at the top of the base forms an installation cavity; two groups of roll bars distributed along the conveying direction of the glass ribbon are arranged in the mounting cavity; each group of the roller strip group comprises two roller strips which are arranged up and down; an adjusting conveying belt is tightly stretched outside each group of the roller strips;
the blocking part is in a hollow pointed cone shape and covers the top of the base; the inner side walls of the blocking parts are respectively fixed on adjacent adjusting and conveying belts through connecting rods;
an adjusting rod is connected between the adjacent adjusting transmission belts;
and a rotating handle axially extends out of the end part of any roller strip positioned below, and the rotating handle extends out of the side wall of the base.
4. The float glass annealing lehr structure of claim 3, wherein the bottom of the dam portion is horizontally extended with a wind shielding edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114290.9A CN113620576B (en) | 2021-09-23 | 2021-09-23 | Float glass annealing kiln structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114290.9A CN113620576B (en) | 2021-09-23 | 2021-09-23 | Float glass annealing kiln structure |
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| Publication Number | Publication Date |
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| CN113620576A CN113620576A (en) | 2021-11-09 |
| CN113620576B true CN113620576B (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111114290.9A Active CN113620576B (en) | 2021-09-23 | 2021-09-23 | Float glass annealing kiln structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116395946A (en) * | 2023-05-17 | 2023-07-07 | 蚌埠中光电科技有限公司 | Partition device in high-end float glass annealing kiln |
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| CN201567291U (en) * | 2009-11-30 | 2010-09-01 | 蚌埠玻璃工业设计研究院 | D area pressure release device for plate glass annealing lehr |
| JP6227831B1 (en) * | 2017-06-26 | 2017-11-08 | 合資会社沖縄関ケ原石材 | Stone tomb |
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| GB289501A (en) * | 1926-10-29 | 1928-04-30 | United Glass Bottle Mfg Ltd | Improvements in or relating to the annealing of glass articles |
| JP3217176B2 (en) * | 1993-02-05 | 2001-10-09 | 旭硝子株式会社 | Method and apparatus for manufacturing float glass |
| CN101439925B (en) * | 2008-12-25 | 2010-06-09 | 杭州蓝星新材料技术有限公司 | On-line film coating environment whole set adjusting device of float glass production line annealing kiln A0 zone |
| CN102730941B (en) * | 2012-06-15 | 2015-03-25 | 中国新型建筑材料工业杭州设计研究院 | Suspension type tin groove cooling method and apparatus thereof |
| CN206721034U (en) * | 2017-03-23 | 2017-12-08 | 中国洛阳浮法玻璃集团有限责任公司 | A kind of annealing kiln in float glass production line check apron structure |
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| CN201567291U (en) * | 2009-11-30 | 2010-09-01 | 蚌埠玻璃工业设计研究院 | D area pressure release device for plate glass annealing lehr |
| JP6227831B1 (en) * | 2017-06-26 | 2017-11-08 | 合資会社沖縄関ケ原石材 | Stone tomb |
| CN209445232U (en) * | 2018-08-27 | 2019-09-27 | 洛阳龙须坡农牧有限公司 | A kind of lighting device of sheep hurdle |
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