CN217148981U - Soaking cover - Google Patents
Soaking cover Download PDFInfo
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- CN217148981U CN217148981U CN202220716317.5U CN202220716317U CN217148981U CN 217148981 U CN217148981 U CN 217148981U CN 202220716317 U CN202220716317 U CN 202220716317U CN 217148981 U CN217148981 U CN 217148981U
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- bucket
- heating zone
- temperature
- ring heater
- heat
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- 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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Abstract
The embodiment of the application provides a soaking cover which is used for heating and insulating glass liquid flowing on a forming template and comprises a circular ring heater, a bucket and a temperature control system, wherein the bucket is hung above the forming template, and the lower surface of the bucket is parallel to the forming template, so that the surface of the glass liquid is vertically heated; the circular heater is arranged on the lower surface of the bucket, and a plurality of annular heating zones are sequentially formed on the circular heater from the center to the edge of the circular heater; the temperature control system comprises a plurality of temperature controllers, each temperature controller is connected with one corresponding heating zone to control the temperature of the corresponding heating zone, and each temperature controller respectively controls the corresponding heating zone to keep the same temperature according to the temperature field requirement, so that the temperature field uniformity in the ultra-low expansion glass ceramics forming process is ensured.
Description
Technical Field
The application relates to the technical field of ultra-low expansion glass ceramic forming, in particular to a soaking cover.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The molten glass which is melted and clarified completely flows into a forming template directly through a leakage pipe to form a large-size glass plate, and in order to keep good fluidity of the molten glass on the template after flowing out of the leakage pipe, namely to keep the viscosity of the molten glass within a good fluidity range, heating and heat preservation must be carried out on the front interface where the molten glass flows and the surface of the molten glass.
In the related art, a silicon carbide rod is generally used as a heating body to manufacture a heating cover for forming traditional large-size optical glass, the lower part of the heating cover is exposed in the air, no heat preservation measure is provided, and the silicon carbide rod is a straight rod type heating body, the central temperature is high, the edge temperature is low, and the temperature difference between the central temperature and the edge temperature can reach more than 100 ℃. The viscosity of the ultra-low expansion glass ceramics is sharply increased along with the temperature reduction, and folding stripes are generated due to the sharp increase of the viscosity in the process that the glass liquid flows from the center to the edge of the forming template, so that the glass liquid is unevenly heated by adopting the traditional heating cover for forming large-size optical glass in the forming process, and larger stress is formed in the ultra-low expansion glass ceramics.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application aims to provide a soaking cover to realize uniform heating of molten glass. The specific technical scheme is as follows:
the embodiment of the application provides a soaking cover which is used for heating and insulating glass liquid flowing on a forming template and comprises a circular ring heater, a bucket and a temperature control system, wherein the bucket is hung above the forming template, and the lower surface of the bucket is parallel to the forming template; the circular heater is arranged on the lower surface of the bucket, and a plurality of annular heating zones are sequentially formed on the circular heater from the center to the edge of the circular heater; the temperature control system comprises a plurality of temperature controllers, and each temperature controller is connected with one corresponding heating area to control the temperature of the corresponding heating area.
The soaking cover comprises the annular heater, the bucket and the temperature control system, the bucket is hung above the forming template, and the lower surface of the bucket is parallel to the forming template, so that the annular heater is arranged on the lower surface of the bucket and can be parallel to the surface of the forming template, the surface of molten glass is vertically heated, and heat is in a downward radiation state of a vertical plane during vertical heating, so that molten glass on the forming template can be radiated, and the heat of the molten glass can be prevented from being radiated upwards and dissipated too much; the center to the edge of the circular ring heater is sequentially provided with a plurality of annular heating zones which are respectively connected with a plurality of temperature controllers in a temperature control system, and each temperature controller respectively controls the corresponding heating zone to keep the same temperature according to the temperature field requirement, thereby effectively ensuring the temperature field uniformity in the ultra-low expansion glass ceramic forming process, solving the problem that the glass liquid causes the large internal stress of the ultra-low expansion glass ceramic due to uneven heating in the related technology, and realizing the high-quality forming of the ultra-low expansion glass ceramic.
In addition, the soaking cover according to the embodiment of the application can also have the following additional technical characteristics:
in some embodiments of the present application, the heating zones comprise a first heating zone, a second heating zone, a third heating zone, a fourth heating zone, a fifth heating zone, and a sixth heating zone; the number of the temperature controllers is six.
In some embodiments of the present application, the ring heater includes a support and a resistance wire, the bottom surface of the support has a mosquito coil type surrounding embedded groove adapted to the resistance wire, and the resistance wire is embedded on the bottom surface of the support in a surrounding manner.
In some embodiments of the present application, the material of the support is a ceramic foam, preferably a lightweight alumina ceramic foam.
In some embodiments of the present application, the bucket includes outer steel sheet and support hub, outer steel sheet includes cylindrical curb plate and annular bottom plate, support hub is located cylindrical curb plate inboard and fixes the upper surface at annular bottom plate, annular bottom plate lower surface with ring heater upper surface fixed connection.
In some embodiments of the present application, the support hub is made of a heat resistant steel material.
In some embodiments of the application, the soaking cover further comprises heat preservation cotton, the heat preservation cotton is wrapped on the outer sides of the bucket and the ring heater and clamped between the bucket and the ring heater, and the heat preservation cotton is connected with the bucket and the ring heater through rivets.
In some embodiments of the present application, the cylindrical side plate is provided with a plurality of lightening holes.
In some embodiments of the present application, the soaking hood further comprises a blowpipe passage comprising a central bore and a cylindrical thin-walled structure; the central hole is a circular hole defined by the circular ring heater and the center of the annular bottom plate, and the inner diameter of the cylindrical thin-wall structure is the same as the diameter of the central hole and is fixed on the central hole.
In some embodiments of the present application, the bucket further comprises a lifting lug welded to an inner side of one end of the cylindrical side plate away from the annular bottom plate along a circumference of the bucket.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings.
FIG. 1 is a schematic structural view of a soaking hood according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a heat spreader according to an embodiment of the present disclosure at another viewing angle;
FIG. 3 is a front view of FIG. 1;
fig. 4 is a sectional view taken along a-a of fig. 3.
Description of reference numerals:
a soaking cover 10;
the ring heater 11, the support 111, the resistance wire 112;
a first heating zone 11-1, a second heating zone 11-2, a third heating zone 11-3, a fourth heating zone 11-4, a fifth heating zone 11-5, and a sixth heating zone 11-6;
the lifting bucket 12, the outer steel plate 121, the cylindrical side plate 1211, the annular bottom plate 1212, the supporting hub 122, the lightening holes 123 and the lifting lugs 124;
a leakage pipe channel 14, a central hole 141, a cylindrical thin-walled structure 142.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the description herein are intended to be within the scope of the present disclosure.
As shown in fig. 1 to 2, the embodiment of the present application provides a soaking hood 10, which includes a ring heater 11, a bucket 12, and a temperature control system (not shown), and is used for heating and insulating molten glass flowing on a forming template (not shown in the figures), wherein the bucket 12 is hung above the forming template, and the lower surface of the bucket 12 is parallel to the forming template; the circular heater 11 is arranged on the lower surface of the bucket 12, and a plurality of annular heating zones are sequentially formed on the circular heater 11 from the center to the edge of the circular heater 11; the temperature control system comprises a plurality of temperature controllers, and each temperature controller is connected with one corresponding heating zone to control the temperature of the corresponding heating zone.
The soaking cover 10 of the embodiment of the application comprises a circular ring heater 11, a bucket 12 and a temperature control system, wherein the bucket 12 is hung above a forming template, and the lower surface of the bucket 12 is parallel to the forming template, so that the circular ring heater 11 is arranged on the lower surface of the bucket, the circular ring heater 11 can be parallel to the surface of the forming template, the surface of molten glass is vertically heated, and heat is in a vertical plane downward radiation state during vertical heating, so that molten glass on the forming template can be radiated, and the heat of the molten glass can be prevented from being radiated upwards and dissipated too much; the center to the edge of the circular ring heater 11 is used for sequentially forming a plurality of annular heating zones on the circular ring heater 11, the annular heating zones are respectively connected with a plurality of temperature controllers in a temperature control system, and each temperature controller respectively controls the corresponding heating zone to keep the same temperature according to the temperature field requirement, so that the temperature field uniformity in the ultra-low expansion glass ceramic forming process is effectively ensured, the problem that the internal stress of the ultra-low expansion glass ceramic is large due to uneven heating of glass liquid in the related technology is solved, and the high-quality forming of the ultra-low expansion glass ceramic is realized.
In some embodiments of the present application, as shown in FIG. 2, the heating zones include a first heating zone 11-1, a second heating zone 11-2, a third heating zone 11-3, a fourth heating zone 11-4, an fifth heating zone 11-5, and a sixth heating zone 11-6; the number of the temperature controllers is six. The reasonable partition temperature control is realized by arranging six heating zones to be respectively and electrically connected with six temperature controllers.
In some embodiments of the present application, as shown in fig. 2, the ring heater 11 includes a support 111 and a resistance wire 112, the bottom surface of the support 111 has a mosquito coil type surrounding insertion groove (not shown) adapted to the resistance wire 112, and the resistance wire 112 is fitted around the bottom surface of the support 111. The resistance wire 112 is embedded on the bottom surface of the support 111 in a surrounding manner, so that the resistance wire 122 can be stably and massively paved above the forming template in a large area and is heated in parallel with the forming template, the stability of the ring heater 11 is ensured, and the glass liquid is comprehensively and uniformly heated.
Further, in the related art, a silicon carbide rod is generally used as a heating element, and the resistance wire 112 in the embodiment of the present application greatly reduces the power of the soaking cover 10 compared with the silicon carbide rod as the heating element, and has a better energy saving effect.
In some embodiments of the present application, the material of the supporting member 111 is a ceramic foam, preferably a lightweight alumina ceramic foam. The foamed ceramic has high mechanical strength and good heat resistance, and ensures that the ring heater 11 can be repeatedly heated and cooled, so that the structure is stable, the size is stable, and the self safety is ensured; the light alumina foamed ceramic has higher surface hardness, and is resistant to oxidation and slag falling under the conditions of high-temperature baking of molten glass and disturbance of hot air flow.
In some embodiments of the present application, as shown in fig. 1, 3 and 4, the bucket 12 includes an outer steel plate 121 and a support hub 122, the outer steel plate 121 includes a cylindrical side plate 1211 and an annular bottom plate 1212, the support hub 122 is located inside the cylindrical side plate 1211 and is fixed on an upper surface of the annular bottom plate 1212, and a lower surface of the annular bottom plate 1212 is fixedly connected to an upper surface of the annular heater 11. By providing the support boss 122 located inside the outer steel plate 121, stability of the tub 12 is ensured.
In some embodiments of the present application, the support hub 122 is made of a heat resistant steel material. By making the support hub 122 of a heat resistant steel material, the heat resistance of the bucket 12 is improved, further improving the safety of the bucket 12.
In some embodiments of the present application, as shown in fig. 1 to 4, the soaking hood 10 further includes a thermal insulation cotton 13, the thermal insulation cotton 13 is wrapped outside the bucket 12 and the ring heater 11 and is clamped between the bucket 12 and the ring heater 11, and the thermal insulation cotton 13 is connected with the bucket 12 and the ring heater 11 through rivets. The heat dissipation speed of the soaking cover 10 is slowed down by arranging the heat insulation cotton 13 which is wrapped on the outer sides of the bucket 12 and the ring heater 11 and clamped between the bucket 12 and the ring heater 11.
In some embodiments of the present application, as shown in fig. 1 and 4, a plurality of lightening holes 123 are provided in the cylindrical side panel 1211. By providing a plurality of lightening holes 123 in the cylindrical side panel 1211, the weight of the bucket 12 is lightened while the structural strength is secured, and the safety of hoisting the bucket 12 is further secured while saving materials and costs.
In some embodiments of the present application, as shown in fig. 1-4, the soaking hood 10 further comprises a blowpipe passage 14, the blowpipe passage 14 comprising a central bore 141 and a cylindrical thin-walled structure 142; the central hole 141 is a circular hole defined by the circular ring heater 11 and the center of the annular bottom plate 1212, and the cylindrical thin-walled structure 142 has the same inner diameter as the diameter of the central hole 141 and is fixed to the central hole 141. By arranging the material leaking pipe channel 14, a material leaking pipe (not shown) of the smelting furnace is sleeved in the material leaking pipe channel 14, so that glass liquid in the material leaking pipe of the smelting furnace flows into the forming template through the shortest material leaking stroke, and the loss of heat of the glass liquid caused by the overlong material leaking stroke is avoided to the greatest extent.
In some embodiments of the present application, as shown in FIG. 1, the bucket 12 further comprises a lifting lug 124, the lifting lug 124 being welded to the inside of the cylindrical side plate 1211 at an end thereof remote from the annular bottom plate 1212 along the circumference of the bucket 12. The lifting lug is arranged on the inner side of the end, far away from the annular bottom plate 1212, of the cylindrical side plate 1211, so that the soaking cover 10 can be stably hung right above the forming mold plate, and the soaking cover 10 can vertically and stably heat the molten glass.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (10)
1. The utility model provides a soaking cover for to the glass liquid that flows on the shaping template heat the heat preservation, its characterized in that includes:
the lifting bucket is lifted above the forming template, and the lower surface of the lifting bucket is parallel to the forming template;
the circular ring heater is arranged on the lower surface of the bucket, from the center to the edge of the circular ring heater, and a plurality of annular heating zones are sequentially formed on the circular ring heater;
the temperature control system comprises a plurality of temperature controllers, and each temperature controller is connected with one corresponding heating zone to control the temperature of the corresponding heating zone.
2. The heat soak cover of claim 1, wherein the heating zones comprise a first heating zone, a second heating zone, a third heating zone, a fourth heating zone, a fifth heating zone, and a sixth heating zone; the number of the temperature controllers is six.
3. The soaking hood according to claim 1, characterized in that the ring heater comprises a support and a resistance wire, the bottom surface of the support is provided with a mosquito coil type surrounding embedded groove adapted to the resistance wire, and the resistance wire is embedded on the bottom surface of the support in a surrounding manner.
4. The heat soaking hood according to claim 3, wherein the supporting member is made of ceramic foam.
5. The soaking jacket according to claim 1, wherein the bucket comprises an outer steel plate and a support hub, the outer steel plate comprises a cylindrical side plate and an annular bottom plate, the support hub is positioned inside the cylindrical side plate and fixed on the upper surface of the annular bottom plate, and the lower surface of the annular bottom plate is fixedly connected with the upper surface of the annular heater.
6. The heat soak cover of claim 5, wherein the support hub is made of a heat resistant steel material.
7. The soaking hood according to claim 1, further comprising heat insulation cotton, wherein the heat insulation cotton is wrapped outside the bucket and the ring heater and is clamped between the bucket and the ring heater, and the heat insulation cotton is connected with the bucket and the ring heater through rivets.
8. The heat soak cover of claim 5 wherein the cylindrical side plates are provided with a plurality of lightening holes.
9. The soaking hood according to claim 5, further comprising a drain passage comprising a central bore and a cylindrical thin-walled structure; the central hole is a circular hole defined by the circular ring heater and the center of the annular bottom plate, and the inner diameter of the cylindrical thin-wall structure is the same as the diameter of the central hole and is fixed on the central hole.
10. The heat soak cover of claim 5, wherein the bucket further comprises a lifting lug welded to an inner side of the cylindrical side plate at an end of the cylindrical side plate remote from the annular bottom plate along a bucket circumference of the bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220716317.5U CN217148981U (en) | 2022-03-29 | 2022-03-29 | Soaking cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220716317.5U CN217148981U (en) | 2022-03-29 | 2022-03-29 | Soaking cover |
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| Publication Number | Publication Date |
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| CN217148981U true CN217148981U (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220716317.5U Active CN217148981U (en) | 2022-03-29 | 2022-03-29 | Soaking cover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751629A (en) * | 2022-03-29 | 2022-07-15 | 中材人工晶体研究院有限公司 | Soaking cover |
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- 2022-03-29 CN CN202220716317.5U patent/CN217148981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751629A (en) * | 2022-03-29 | 2022-07-15 | 中材人工晶体研究院有限公司 | Soaking cover |
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