CN213113048U - Molten tin bath edge sealing structure and molten tin bath - Google Patents
Molten tin bath edge sealing structure and molten tin bath Download PDFInfo
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- CN213113048U CN213113048U CN202022147915.9U CN202022147915U CN213113048U CN 213113048 U CN213113048 U CN 213113048U CN 202022147915 U CN202022147915 U CN 202022147915U CN 213113048 U CN213113048 U CN 213113048U
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Abstract
The utility model relates to a float glass production technical field, especially a molten tin bath limit portion seal structure and molten tin bath. The tin bath edge sealing structure comprises an expansion joint, wherein a heat insulation layer, a sealing mud layer, a sealing glue layer and a rigid sealing element are sequentially arranged in the expansion joint from inside to outside; the rigid sealing element is matched with the section of the expansion joint. The expansion joint comprises a gap between the tin bath breast wall and the tin bath edge seal, a gap between the tin bath bottom shell and the tin bath edge seal and a gap between two adjacent tin bath edge seals. The combination of the sealant layer and the rigid sealing member improves the contact tightness between the sealant layer and the side wall of the expansion joint.
Description
Technical Field
The utility model relates to a float glass production technical field, especially a molten tin bath limit portion seal structure and molten tin bath.
Background
The traditional tin bath edge sealing is to fill thermal insulation cotton in expansion seams between the edge seal and a breast wall, between the edge seal and a bottom shell and between the edge seals, then apply refractory sealing mud, and finally brush sealing glass glue. After the sealing refractory mortar is dried at high temperature: firstly, the volume is contracted, and the sealing mud and the stainless steel edge seal generate cracks; secondly, the surface of the sealing mud is dried and cracked, and cracks with different lengths and depths appear; thirdly, the surface sealing glue is volatilized or peeled quickly, and the glue needs to be repeatedly replenished and brushed (if the sealing requirement is high, the glue needs to be replenished and brushed once every 4 hours). The sealing effect obtained by the traditional sealing process is not good enough, the hydrogen overflow amount of the tin bath detected by using a leak detector is generally more than 10ppm, and the three conditions can all cause that: firstly, a large amount of external air permeates into a tin bath to cause heavy pollution, and the tin permeating amount of glass is large; secondly, sealing needs to be strengthened (knocked off and done again) in a short time, and more heat preservation cotton or sealing mud is used; and thirdly, before doing again, although the sealing glue can be repeatedly brushed to maintain the sealing degree, a great deal of energy is added to an operator.
The current commonly used improvement method is to replace the last glass glue brushing in the traditional sealing process and to change the last glass glue brushing into the glass glue smearing process by coating a thick layer of high-temperature sealant (5-10 mm in thickness), for example, the Chinese patent CN 207713627U. Although the sealing performance is improved in a mode of arranging the sealing glue, the cost is greatly increased. And the sealant is aged at high temperature and then is separated from the stainless steel edge sealing frame, so that the sealing structure has short maintenance time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the sealing structure of the tin bath edge seal is provided aiming at the problems that the sealing glue layer and the edge seal in the sealing structure in the prior art are separated and the maintenance time is short.
In order to realize the purpose, the utility model discloses a technical scheme be:
a tin bath edge sealing structure comprises an expansion joint, wherein a heat insulation layer, a sealing mud layer, a sealing glue layer and a rigid sealing element are arranged in the expansion joint from inside to outside in sequence; the rigid sealing element is matched with the section of the expansion joint.
The expansion joint comprises a gap between the tin bath breast wall and the tin bath edge seal, a gap between the tin bath bottom shell and the tin bath edge seal and a gap between two adjacent tin bath edge seals.
The inner part of the tin bath is the inner side, and the outer part of the tin bath is the outer side. From inside to outside is intended to mean from the inside of the tin bath towards the outside of the tin bath.
The rigid sealing element is matched with the section of the expansion joint, namely, a gap between the rigid sealing element and the side wall of the expansion joint is small.
Through the combination of the sealing adhesive layer and the rigid sealing element, when the sealing adhesive layer shrinks, the shrinking amplitude is reduced due to the support of the rigid sealing element, and the sealing adhesive layer is not easy to separate from the side wall of the expansion joint; on the other hand, when the sealing adhesive layer shrinks, the rigid sealing element is driven to move inwards to compress the sealing adhesive layer, and the contact tightness between the sealing adhesive layer and the side wall of the expansion joint is improved. The sealing glue layer is not easy to separate from the frame, so that the maintaining time of the sealing structure is prolonged.
As a preferable aspect of the present invention, the rigid sealing member is a metal sheet. Preferably, the rigid sealing element is one of a stainless steel sheet, an iron sheet and an aluminum alloy sheet.
The rigid seal is an airtight solid component capable of withstanding a certain external force without deformation.
Adopt the rigid seal spare of metal, still do benefit to the heat derivation with sealant layer, do benefit to sealant layer's heat dissipation, do benefit to the life who promotes sealant layer.
The preferred tinplate is 2 ~ 5mm, and the cost is lower, and what add man-hour can be convenient cuts out according to the size of actual expansion joint.
As the preferred scheme of the utility model, the rigid seal piece with the one side that sealed rubber layer contacted is the rough surface.
Through setting up the mat surface, do benefit to being connected of rigid seal spare and sealant layer.
As a preferred aspect of the present invention, the sealant layer includes a first sealant portion and a second sealant portion; the first sealant part is located between the sealing mud layer and the rigid sealing element, and the second sealant part is located between the side face of the rigid sealing element and the side wall of the expansion joint.
Through set up second sealant portion between rigid seal spare and expansion joint lateral wall for the rigid seal spare forms soft connection with the lateral wall of expansion joint, and the contact of sealant layer and expansion joint lateral wall is inseparabler. Meanwhile, the second sealant part and the first sealant part are integrated, so that the sealant layer and the rigid sealing element are more favorably connected into a whole.
As a preferable aspect of the present invention, the second sealant portion may cover an outer edge of the rigid sealing member.
And part of the second sealing rubber part is positioned on the outer side of the rigid sealing element, so that the rigid sealing element is wrapped, and the sealing rubber layer and the rigid sealing element are connected into a whole.
As the preferred scheme of the utility model, the expansion joint is from inside to outside clearance crescent. I.e. the expansion joint is gradually reduced from the outside to the inside gap.
The expansion joint is wedge-shaped from outside to inside, and when the rigid sealing element moves inwards, the side wall of the expansion joint can be pressed more tightly.
As the utility model discloses an optimal scheme, the heat preservation is the heat preservation that forms in going into the expansion joint with heat preservation cotton, the thickness of heat preservation is 5 ~ 6 cm.
As the utility model discloses an optimal scheme, sealed mud layer is the sealed mud layer of smearing the fire clay at the cotton outside surface formation of heat preservation, the thickness on sealed mud layer is 5 ~ 10 mm.
As the preferred scheme of the utility model, the thickness of sealing glue layer is 2 ~ 5 mm.
The utility model also provides a molten tin bath, this molten tin bath contain foretell molten tin bath limit portion seal structure.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the tin bath edge sealing structure of the utility model, through the combination of the sealing glue layer and the rigid sealing element, when the sealing glue layer shrinks, because of the support of the rigid sealing element, the shrinking amplitude is reduced, and the tin bath edge sealing structure is not easy to separate from the side wall of the expansion joint; on the other hand, when the sealing glue layer shrinks, the rigid sealing element is driven to move inwards, and because the expansion joint is gradually reduced from the outside to the inside, the rigid sealing element can oppress the sealing glue layer, so that the tightness degree of the contact between the sealing glue layer and the side wall of the expansion joint is improved.
2. The utility model discloses a molten tin bath limit portion seal structure through setting up the rigid seal inboard to the mat surface, sets up the sealant layer to including first sealant portion and second sealant portion, and wraps up the edge of rigid seal with the sealant portion of second for the better connection of sealant layer and rigid seal is a whole. The wedge-shaped expansion joint can better keep the contact between the sealant layer and the side wall of the expansion joint. The maintenance time is favorably prolonged.
3. The utility model discloses a molten tin bath limit portion seal structure through the selection to each layer structural material, combines the selection of thickness, under the circumstances of guaranteeing sealed effect, has reduced the processing degree of difficulty and processing cost as far as.
Drawings
Fig. 1 is a schematic structural view of the molten tin bath edge sealing structure of the present invention.
Fig. 2 is an enlarged schematic view of fig. 1 at circle a.
Fig. 3 is an enlarged schematic view of fig. 2 at circle B.
Icon: 1-tin bath breast wall; 2-edge sealing of the tin bath; 3-tin bath bottom shell; 4-expansion gap; 51-an insulating layer; 52-sealing the mud layer; 53-sealant layer; 531-first sealant part; 532-second sealant part; 54-rigid seal.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
A tin bath edge sealing structure is disclosed, as shown in fig. 1 and fig. 2, and comprises an expansion joint 4, wherein an insulating layer 51, a sealing mud layer 52, a sealing glue layer 53 and a rigid sealing element 54 are arranged in the expansion joint 4 from inside to outside in sequence; the rigid seal 54 is adapted to the cross section of the expansion joint 4.
The expansion joint 4 comprises a gap between the tin bath breast wall 1 and the tin bath edge seal 2, a gap between the tin bath bottom shell 3 and the tin bath edge seal 2 and a gap between two adjacent tin bath edge seals 2. The inner part of the tin bath is the inner side, and the outer part of the tin bath is the outer side. From inside to outside is intended to mean from the inside of the tin bath towards the outside of the tin bath.
The rigid seal 54 is a metal sheet. One of a stainless steel sheet, an iron sheet, an aluminum alloy sheet and a ceramic sheet may be selected. The metal sheet is also rigid. Is solid metal which is not easy to deform.
In the better scheme, rigid seal 54 adopts the tinplate, and thickness is 2 ~ 5mm, and the cost is lower, still does benefit to the heat derivation with the sealing glue layer, and what add man-hour can be convenient cuts out according to the size of the dilatation joint of reality.
The surface of the rigid sealing member 54 in contact with the sealant layer 53 is roughened. The attachment of the rigid seal 54 to the sealant layer 53 is facilitated by the provision of a roughened surface.
As shown in fig. 3, the sealant layer 53 includes a first sealant portion 531 and a second sealant portion 532; the first sealant 531 is located between the sealing mud layer 52 and the rigid sealing element 54, and the second sealant 532 is located between the side of the rigid sealing element 54 and the sidewall of the expansion joint 4. In this embodiment, the second mastic portion 532 includes a portion between the tin bath breast wall 1 and the side wall of the rigid seal 54, and a portion between the rigid seal 54 and the tin bath edge seal 2. The second sealant portion 532 can cover the outside edge of the rigid seal 54. A portion of the second sealant portion 532 is disposed outside the rigid sealing member 54 to wrap the edge of the rigid sealing member 54, thereby facilitating the connection of the sealant layer 53 and the rigid sealing member 54.
The expansion joint 4 is gradually reduced from the outside to the inside. The expansion joint 4 is wedge-shaped from outside to inside, and when the rigid sealing member 54 moves inwards, the side wall of the expansion joint 4 can be pressed more tightly.
More specifically, the heat-insulating layer 51 is formed by inserting heat-insulating cotton into an expansion gap, and the thickness of the heat-insulating layer 51 is 5-6 cm. The sealing mud layer 52 is formed by smearing refractory mud on the outer side surface of the heat insulation cotton, and the thickness of the sealing mud layer 52 is 5-10 mm. The thickness of the sealant layer 53 is 5-10 mm.
More specifically, in the production, the following method is adopted,
s1, plugging the interval between the edge seals (the thickness is about 5 cm) by heat preservation cotton with the width of 2cm and the length equal to the edge seal frame;
s2, mixing refractory mortar with water (the humidity is suitable for preventing obvious water drops from being formed by hand pinching), and uniformly smearing the mortar on the surface of the heat-preservation cotton by using a sealing shovel, wherein the thickness of the mortar is about 5-10 mm;
s3, cleaning the edge sealing frame which is not covered by the mud, then using a glue gun to glue the Dow Corning black glue on the sealing mud, and using a sealing shovel to evenly trowel the sealing mud to obtain a glue thickness of about 5-10 mm;
s4, measuring the width and length of the interval between the two edge sealing frames with a ruler, and cutting a tinplate with corresponding length and width with a pair of scissors;
s5, embedding a tinplate, and coating a Kongning glue (with the thickness of about 2 mm) at the seam between the tinplate and the edge sealing frame;
and S6, checking leakage repair by using Dow Corning glue, and cleaning the site.
The tinplate is firmly pasted with the Dow Corning high-temperature adhesive after being embedded, and the tinplate is well adhered with the Dow Corning adhesive at the joint of the edge sealing frame. By facing the tin groove edgeThe sealing structure is arranged in the part, so that the sealing effect can be greatly improved. In a certain production line of the company, the tin infiltration amount of the glass original sheet with the same thickness (5 mm) before and after the improvement is from 16.0 to 17.5 mu g/cm2The concentration of the solution is reduced to 13.0 to 14.5 mu g/cm2Therefore, the optical performance of the surface of the glass sheet is greatly improved, and the loss of molten tin can be obviously reduced, so that the cost of the molten tin bath forming process is reduced.
Example 2
The utility model also provides a molten tin bath, this molten tin bath contains the seal structure of molten tin bath limit portion as embodiment 1.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A tin bath edge sealing structure comprises an expansion joint (4), and is characterized in that a heat-insulating layer (51), a sealing mud layer (52), a sealing glue layer (53) and a rigid sealing element (54) are sequentially arranged in the expansion joint (4) from inside to outside; the rigid sealing element (54) is adapted to the cross section of the expansion joint (4).
2. A tin bath edge sealing structure according to claim 1, characterized in that the rigid sealing member (54) is a metal sheet.
3. A tin bath edge sealing structure according to claim 1, wherein the surface of the rigid sealing member (54) in contact with the sealant layer (53) is roughened.
4. A molten tin bath edge sealing structure according to claim 1, wherein the sealant layer (53) includes a first sealant portion (531) and a second sealant portion (532); the first sealant portion (531) is located between the sealing mud layer (52) and the rigid sealing piece (54), and the second sealant portion (532) is located between the side face of the rigid sealing piece (54) and the side wall of the expansion joint (4).
5. A tin bath edge sealing structure according to claim 4, wherein the second sealant portion (532) is adapted to cover an outer edge of the rigid seal (54).
6. A tin bath edge sealing structure according to claim 1, wherein the expansion joint (4) is gradually increased in clearance from the inside to the outside.
7. A tin bath edge sealing structure according to any one of claims 1 to 6, wherein the insulating layer (51) is formed by inserting an insulating cotton into an expansion joint, and the thickness of the insulating layer (51) is 5 to 6 cm.
8. A tin bath edge sealing structure according to any one of claims 1 to 6, wherein the sealing mud layer (52) is formed by applying fire clay on the outer surface of the heat insulation cotton, and the thickness of the sealing mud layer (52) is 5-10 mm.
9. A tin bath edge sealing structure according to any one of claims 1 to 6, wherein the thickness of the sealant layer (53) is 2 to 5 mm.
10. A tin bath comprising the tin bath edge sealing structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022147915.9U CN213113048U (en) | 2020-09-25 | 2020-09-25 | Molten tin bath edge sealing structure and molten tin bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022147915.9U CN213113048U (en) | 2020-09-25 | 2020-09-25 | Molten tin bath edge sealing structure and molten tin bath |
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| Publication Number | Publication Date |
|---|---|
| CN213113048U true CN213113048U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022147915.9U Active CN213113048U (en) | 2020-09-25 | 2020-09-25 | Molten tin bath edge sealing structure and molten tin bath |
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| Country | Link |
|---|---|
| CN (1) | CN213113048U (en) |
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