CN110903023A - Observation hole of annealing kiln - Google Patents
Observation hole of annealing kiln Download PDFInfo
- Publication number
- CN110903023A CN110903023A CN201811085517.XA CN201811085517A CN110903023A CN 110903023 A CN110903023 A CN 110903023A CN 201811085517 A CN201811085517 A CN 201811085517A CN 110903023 A CN110903023 A CN 110903023A
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- Prior art keywords
- hole
- observation
- annealing kiln
- observation hole
- folded
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- 238000000137 annealing Methods 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000007507 annealing of glass Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 15
- 230000000007 visual effect Effects 0.000 description 12
- 238000004321 preservation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention belongs to an annealing kiln observation hole in the field of glass annealing processes. The technical scheme is as follows: the observation hole is arranged on the side wall of the annealing kiln body, and the peripheral hole wall of the observation hole comprises a rectangular section and a horn mouth section which is positioned on the inner side of the rectangular section and connected with the rectangular section. The invention improves the structure of the observation hole of the annealing kiln and optimizes the observation vision on the side wall of the annealing kiln.
Description
Technical Field
The invention belongs to the field of glass annealing processes, and particularly relates to an observation hole structure on an annealing furnace.
Background
An annealing lehr is a device for "annealing" glass in a glass production line, which allows the advancing ribbon of glass from a tin bath to be controllably cooled from 600 ℃ to 70 ℃, while eliminating or reducing the residual stress of the glass, resulting in a glass sheet having a uniform internal structure and good mechanical properties. The observation holes on the annealing kiln are used for conveniently observing the conditions of all parts in the kiln, and comprise glass, rollers, internal air pipes, electric heaters and the like in the kiln, and one observation hole is arranged on each side wall of each section of the kiln body of the annealing kiln. The conventional observation hole design structure in production is in a rectangular hole pattern, the observation angle in the vertical direction is generally 0-37 degrees and the observation angle in the horizontal direction is generally 0-58 degrees on the premise of determining the position of the observation hole, the observation effect in the two viewing angle ranges is not ideal, and the observation blind area and the dead angle are large. For example, the side glass edge part can not be observed through observation of one side of the kiln body, and the condition of the side glass edge part needs to be observed through an observation hole of the other side of the kiln body; and because the limited observation range of the horizontal visual angle of each observation hole is small, more observation holes must be arranged on the kiln body to see any position of the glass, and in the practical situation, two observation holes are respectively arranged on two sides of the kiln body with the length of three meters per section, the observation holes are distributed too densely, which is unfavorable for the heat preservation of the kiln body, and the appearance is not beautiful.
Disclosure of Invention
The invention aims to optimize the observation vision on the side wall of the annealing kiln by providing an annealing kiln observation hole with an improved observation hole structure.
The basic technical scheme of the invention is as follows: the utility model provides an annealing kiln observation hole, its setting is on the side wall of the annealing kiln body, and observation hole pore wall all around includes the rectangle section and is located the inboard loudspeaker mouth section of being connected with the rectangle section of rectangle section.
Based on the technical characteristics, the included angle between the horn mouth section and the surface where the same side hole wall of the rectangular section is located is 30 degrees.
Based on the technical characteristics, the rectangular section occupies 2/3 of the depth of the observation hole.
Based on the basic technical scheme, the hole wall of the observation hole is a folded steel plate, the folded steel plate is composed of a flat steel plate and a folded plate, and the folded plate is folded outwards to form a horn mouth.
Based on the technical characteristics: the included angle of the surface of the hole wall on the same side of the folded plate and the flat steel plate is 30 degrees.
Based on the technical characteristics: the hem plate is folded at 2/3 of the depth of the viewing hole, and the flat steel plate occupies 2/3 of the depth of the viewing hole. The purpose of arranging like this is in order to guarantee the cotton thickness of side wall heat preservation. The side wall is composed of an outer steel plate and an inner steel plate, and the heat preservation cotton is filled between the inner steel plate and the outer steel plate and mainly plays a role in heat preservation and heat insulation.
The invention changes the hole wall around the observation hole in the prior art from a plane to a folded surface, and the tail end of the horizontal wall surface is folded outwards, so that the observation hole is changed from an original rectangular hole to a horn-shaped hole, namely, the plug board is plugged around the hole close to the inner side wall of the kiln body and is in a square horn shape. If the folding angle of the folding section is too small, the visual angle optimization effect is not obvious, and if the folding angle of the folding section is too large, the folding edge line can block the visual angle from further expansion. Therefore, aiming at the annealing kiln commonly used in the market at present, the folding section is folded outwards by 30 degrees to be an optimal choice, so that the vertical direction observation visual angle can be improved to about 1.5 times of the vertical direction observation visual angle before improvement; the horizontal viewing angle can be increased to about 1.3 times the horizontal viewing angle before improvement; the visual angle is remarkably enlarged.
After the observation visual angle is enlarged, the observation range through one observation hole is wider, and the condition in the kiln can be monitored in a large range. When the annealing is abnormal, such as the problem of plate explosion, when the glass explosion source is searched by tracking the observation holes, all the observation holes do not need to be opened, the glass explosion position can be conveniently seen by opening a plurality of wide-angle observation holes, and then the region where the problem is located is quickly positioned. And the wide-angle observation hole can not only see the edge condition of the side glass where the observer is located, eliminate the visual blind area which exists before, but also observe the conditions of the upper edge internal air pipe and the electric heater which cannot be seen before upwards.
Drawings
FIG. 1 is a schematic cross-sectional view of an annealing furnace view hole according to an embodiment of the present invention.
Fig. 2 is a horizontal view of a prior art rectangular viewing aperture.
Fig. 3 is a schematic horizontal view of a trumpet-shaped observation hole in an embodiment of the invention.
Fig. 4 is a schematic view of a prior art rectangular viewing hole from a vertical viewing angle.
FIG. 5 is a schematic view of a vertical viewing angle of a trumpet-shaped viewing aperture in an embodiment of the present invention.
Fig. 6 is a schematic view showing a change in the visible range of the vertical viewing angle before and after the structure of the viewing port is improved.
The reference numbers in the figures denote:
1 Flat steel plate
2 edge folding plate
3 annealing kiln
4 blast pipe
5 glass
Angle A
Horizontal viewing angle of a' rectangular viewing hole
Horizontal view angle of a horn-shaped observation hole
b' rectangular viewing hole vertical viewing angle
b vertical view angle of horn-shaped observation hole
L depth of observation hole
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
FIG. 1 is a schematic cross-sectional view of an annealing furnace view hole according to an embodiment of the present invention. The observation hole comprises a rectangular section and a horn mouth section which is positioned on the inner side of the rectangular section and connected with the rectangular section. In this embodiment, the hole wall of the observation hole is formed by folded steel plates arranged around, each folded steel plate is formed by a flat steel plate 1 and a folded plate 2, each folded plate 2 is folded outwards to form a bell mouth, and the bell mouth faces the inside of the kiln body. As an optimization, the included angle A of the surface of the hole wall on the same side of the folded plate 2 and the flat steel plate 1 can be 30 degrees. As another optimization, as shown in fig. 1, the depth of the observation hole is set to L, the folded plate is folded at 2/3 of the depth L of the observation hole, and the flat steel plate occupies 2/3 of the depth of the observation hole.
FIG. 2 is a schematic view of a prior art rectangular viewing aperture at a horizontal viewing angle a'; fig. 3 is a schematic view of a horizontal viewing angle a of a trumpet-shaped viewing hole in an embodiment of the present invention. By comparing fig. 2 and 3, the horizontal viewing angle a of the trumpet-shaped viewing aperture is significantly larger than the horizontal viewing angle a' of the rectangular viewing aperture under the condition that the depth and the horizontal segment width of the viewing aperture are the same.
FIG. 4 is a schematic view of a prior art rectangular viewing aperture at a vertical viewing angle b'; FIG. 5 is a schematic diagram of a vertical viewing angle b of the trumpet-shaped viewing hole in the embodiment of the present invention. By comparing fig. 4 and 5, the vertical viewing angle b of the trumpet-shaped viewing aperture is significantly greater than the vertical viewing angle b' of the rectangular viewing aperture with the depth of the viewing aperture and the height of the vertical section being the same.
Fig. 6 is a visual range change of a vertical viewing angle before and after the improvement of the observation hole structure. In FIG. 6, the left side is a rectangular viewing angle b', the upper air duct 4 and the lower glass 5 are not completely located in the annealing furnace 3, and the right side is a horn-shaped viewing angle b, the upper air duct 4 and the lower glass 5 are completely viewed. The shadow part shown in fig. 6 is a visual blind area, and after the rectangular observation hole is optimized to be the horn-shaped observation hole, the horizontal visual range and the vertical visual range of the optimized horn-shaped observation hole can be enlarged. On-site feedback, the observation effect is greatly improved by the improved measure, and the emergency operation convenience and the working efficiency are improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a hole is observed to annealing kiln, its setting on the lateral wall of annealing kiln body which characterized in that: the hole wall around the observation hole comprises a rectangular section and a horn mouth section which is positioned on the inner side of the rectangular section and connected with the rectangular section.
2. An annealing kiln sight hole according to claim 1, wherein: the horn mouth section and the rectangular section have an included angle of 30 degrees with the surface of the same side hole wall.
3. An annealing kiln sight opening according to claim 1 or 2, wherein: the rectangular section occupies 2/3 the depth of the viewing aperture.
4. An annealing kiln sight hole according to claim 1, wherein: the hole wall of the observation hole is a folded steel plate, the folded steel plate is composed of a flat steel plate (1) and a folded plate (2), and the folded plate (2) is folded outwards to form a horn mouth.
5. An annealing kiln sight hole according to claim 4, wherein: the included angle of the surface of the hole wall on the same side of the folded plate (2) and the flat steel plate (1) is 30 degrees.
6. The seed annealing kiln sight of claim 4 or 5, wherein: the flat steel plate (1) occupies 2/3 of the depth of the observation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085517.XA CN110903023A (en) | 2018-09-18 | 2018-09-18 | Observation hole of annealing kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085517.XA CN110903023A (en) | 2018-09-18 | 2018-09-18 | Observation hole of annealing kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110903023A true CN110903023A (en) | 2020-03-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811085517.XA Pending CN110903023A (en) | 2018-09-18 | 2018-09-18 | Observation hole of annealing kiln |
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| CN (1) | CN110903023A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980065714U (en) * | 1997-05-07 | 1998-12-05 | 김종진 | Equipment for internal observation of the annealing furnace |
| CN201225825Y (en) * | 2008-06-24 | 2009-04-22 | 宜兴摩根热陶瓷有限公司 | Observation hole brick |
| CN102121790A (en) * | 2010-01-07 | 2011-07-13 | 贵阳铝镁设计研究院 | Observation hole device on kiln head cover |
| CN207636842U (en) * | 2017-12-19 | 2018-07-20 | 青岛鲜食科技有限公司 | A kind of waterproof visor that can solve food-safety problem |
| CN208843939U (en) * | 2018-09-18 | 2019-05-10 | 中国建材国际工程集团有限公司 | A kind of annealing kiln peep hole |
-
2018
- 2018-09-18 CN CN201811085517.XA patent/CN110903023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980065714U (en) * | 1997-05-07 | 1998-12-05 | 김종진 | Equipment for internal observation of the annealing furnace |
| CN201225825Y (en) * | 2008-06-24 | 2009-04-22 | 宜兴摩根热陶瓷有限公司 | Observation hole brick |
| CN102121790A (en) * | 2010-01-07 | 2011-07-13 | 贵阳铝镁设计研究院 | Observation hole device on kiln head cover |
| CN207636842U (en) * | 2017-12-19 | 2018-07-20 | 青岛鲜食科技有限公司 | A kind of waterproof visor that can solve food-safety problem |
| CN208843939U (en) * | 2018-09-18 | 2019-05-10 | 中国建材国际工程集团有限公司 | A kind of annealing kiln peep hole |
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