CN212152057U - Feeding port structure of glass kiln - Google Patents
Feeding port structure of glass kiln Download PDFInfo
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- CN212152057U CN212152057U CN202020858140.3U CN202020858140U CN212152057U CN 212152057 U CN212152057 U CN 212152057U CN 202020858140 U CN202020858140 U CN 202020858140U CN 212152057 U CN212152057 U CN 212152057U
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Abstract
The utility model provides a stable glass kiln dog-house structure of glass liquid level in kiln. The feeding port structure of the glass kiln comprises an upper brick, a cover brick, a bottom brick, a left side brick and a right side brick, wherein the cover brick is arranged on the upper brick, the side wall of the bottom brick is arranged close to the side wall of the bottom brick, the bottom brick is an inclined plane brick, the highest position of the inclined plane of the bottom brick is parallel and level with the upper surface of the bottom brick, and the left side brick and the right side brick form a structure with two side surfaces. The material pile at the feeding port of the utility model can be fully heated to achieve the pre-melting effect, the material pile slowly flows into the kiln, the temperature of the glass liquid in the kiln is not influenced by the feeding, the liquid level of the glass liquid is stable, the temperature is stable, and the kiln pressure is stable; the batch feeder has no obvious volatilization and flying phenomena during operation, and can improve the melting quality of glass in the kiln. The utility model is particularly suitable for the melting production of special glass electric melting-assistant kilns such as small-tonnage colorless optical glass, electronic glass and the like.
Description
Technical Field
The utility model relates to an optical glass, electronic glass make the field, concretely relates to dog-house structure of electric melting-assistant kiln of optical glass, electronic glass production and use.
Background
The kiln is the most important thermal equipment for melting glass, and the preparation of molten glass with good quality and uniform components after melting is the embodiment of the technical advancement of the kiln. Special glass such as optical glass, electronic glass and the like has special requirements on the uniformity and consistency of components of the glass, and how to ensure the charging uniformity is the problem which is first faced by manufacturers. Most of the glass production line kilns adopt an electric boosting melting production mode, because the daily production capacity of the production line is generally small, the material feeding amount per hour is also small, the batch feeding mode of the kilns adopts more batch feeding of clearance type mechanical arms, and the batch feeding port structure of the kilns which is similar to a continuous positive batch feeding mode of a large float kiln and is provided with a batch feeding pool is seldom adopted. The batch feeding mode of the intermittent manipulator has the phenomena of furnace space temperature fluctuation and furnace pressure change when a furnace door is opened by batch feeding, the furnace glass liquid level fluctuation and the powder melting rate change are large during batch feeding, and meanwhile, large dust and volatile components fly upwards during batch feeding, which cause the disadvantages of operation environment protection and uniformity of glass melting quality.
201620180332.7 discloses a method for solving the above problems, but it puts higher demands on the operation reliability of the feeder at high temperature, and the situation that the surface of the feeder body is eroded and the eroded objects fall into the glass liquid to affect the glass quality inevitably occurs when the feeder body is operated in the high-temperature kiln space for a long time; meanwhile, the phenomenon of powder flying can be avoided during feeding because the feeding machine has a certain feeding height from the glass liquid surface of the kiln. 201820392639.2 is more protected outside the feeder, and the outer curtain of the feeder is added to prevent the dust in the cover from floating outside.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a stable glass kiln dog-house structure of glass liquid level in kiln is provided.
The utility model provides a technical scheme that technical problem adopted is: the feeding port structure of the glass kiln comprises an upper brick, a cover brick, a bottom brick, a left side brick and a right side brick, wherein the cover brick is arranged on the upper brick, the side wall of the bottom brick is arranged close to the side wall of the bottom brick, the bottom brick is an inclined plane brick, the highest position of the inclined plane of the bottom brick is parallel and level with the upper surface of the bottom brick, and the left side brick and the right side brick form a structure with two side surfaces.
Further, the length of the upper brick in the feeding direction is shorter than that of the cover brick. Furthermore, the length of the upper brick in the feeding direction is 1/2-2/3 of the length of the cover brick.
Furthermore, the height of the upper surface of the bottom brick is 10-100mm higher than the liquid level of the glass liquid in the kiln. Furthermore, the height of the upper surface of the bottom brick is 30-60mm higher than the liquid level of the glass liquid in the kiln.
Further, the height H between the bottom of the inclined plane of the bottom brick and the liquid level of the molten glass in the kiln is 20-200 mm.
Furthermore, the heat-insulating sealing block is tightly attached to the front end of a feeding port formed by the upper brick and the bottom brick.
Furthermore, the heat-insulating sealing block is sleeved on the feeding cylinder of the spiral feeding machine and fixed with the feeding cylinder of the spiral feeding machine.
Furthermore, a cooling device is arranged on the barrel body of the spiral feeder.
Furthermore, the vertical end face of the bottom brick, which is contacted with the glass liquid in the kiln, is flush with the front wall of the kiln.
The utility model has the advantages that: the material pile at the feeding port can be fully heated to achieve the pre-melting effect, the material pile slowly flows into the kiln, the temperature of the glass liquid in the kiln is not influenced by the feeding, the liquid level of the glass liquid is stable, the temperature is stable, and the kiln pressure is stable; the batch feeder has no obvious volatilization and flying phenomena during operation, and can improve the melting quality of glass in the kiln. The utility model is particularly suitable for the melting production of special glass electric melting-assistant kilns such as small-tonnage colorless optical glass, electronic glass and the like.
Drawings
Fig. 1 is a sectional view of a front view of the feeding port structure of the glass kiln of the utility model.
Fig. 2 is a cross-sectional view of the top view of fig. 1.
Detailed Description
As shown in fig. 1-2, the feeding port structure of the kiln of the present invention comprises an upper brick 1, a cover brick 2, a bottom brick 3, a bottom brick 4, a left side brick 5 and a right side brick 6, wherein the upper brick 1 and the cover brick 2 form a feeding port upper structure, the cover brick 2 is disposed on the upper brick 1, and the length of the upper brick 1 in the feeding direction is shorter than that of the cover brick 2, so as to form an upper space of a stockpile 11, thereby facilitating the rapid heating of the upper part of the stockpile 11 under the heat radiation of a natural gas burning gun 12, wherein the length in the feeding direction is the length in the horizontal direction in fig. 1; the bottom brick 3 and the bottom brick 4 form a bottom structure of the feeding port, the side wall of the bottom brick 4 is arranged close to the side wall of the bottom brick 3, the adjacent surfaces of the bottom brick 4 and the bottom brick 3 are tightly attached, the bottom brick 4 is an inclined-plane brick, the highest position of the inclined plane of the bottom brick 4 is flush with the upper surface of the bottom brick 3, and the inclined plane of the bottom brick 4 and the upper surface of the bottom brick 3 jointly form a bottom inclined-plane structure of the feeding port; the left side brick 5 and the right side brick 6 form two side surface structures of the feeding port.
In order to achieve the pre-melting effect of the stockpile, the length of the upper brick 1 in the feeding direction is preferably 1/2-2/3 of the length of the cover brick 2, and the natural gas burning gun 12 close to the feeding port of the kiln can fully heat the upper part of the stockpile 11 in the feeding port.
The height of the upper surface of the bottom brick 3 is 10-100mm higher than the liquid level of the glass liquid in the kiln, preferably 30-60mm higher, so as to ensure the safe operation of the spiral feeder 7; the height H between the bottom of the inclined plane of the bottom brick 4 and the liquid level of the molten glass in the kiln is 20-200mm, preferably 80-150mm, as shown in figure 1. If H is too small, namely the feeding port is too shallow, the effective volume of molten high-temperature glass liquid in the kiln entering the feeding port is small, so that the melting of the bottom of the material pile 11 and the flowing of the material pile 11 into the kiln are not facilitated; however, if H is too large, namely the feeding port is too deep, the heat dissipation of the feeding port is large, the influence on the melting temperature of the glass liquid in the kiln is obvious, and the premelting of the material pile 11 in the feeding port is also not facilitated.
The vertical end face of the bottom brick 4, which is contacted with the glass liquid in the kiln, is flush with a front wall 14 of the kiln, wherein the front wall 14 of the kiln refers to the inner surface of the kiln, which is contacted with the glass liquid and is close to the feeding port; the electrodes 13 near the front wall 14 of the kiln enhance the melting of the lower part of the stockpile 11 in the feed opening and promote the flow of the stockpile 11 into the kiln, and the electrodes 13 can be controlled independently to increase the input power so as to enhance the melting of the stockpile 11 on the upper part of the electrodes 13.
In order to exert the pre-melting effect of the material pile 11 in the feeding port, the volume of the feeding port is designed and calculated according to the longest retention time of 80min and the shortest retention time of 30min of the material pile 11, the design retention time is different according to different types of the melted glass, the retention time of the material pile 11 is preferably 30-50min for colorless optical glass and electronic glass (such as TFT-LCD glass), and the retention time of the material pile 11 is preferably 60-80min for glass which is difficult to melt. For example: the material output amount per day of the electric-assisted melting kiln is 8 tons, the preferable retention time of a material pile 11 at a feed port is 30-40min, 2 spiral feed feeders are preferable, and the volume of the feed port formed by an upper brick 1, a cover brick 2, a bottom brick 3, a bottom brick 4, a left brick 5 and a right brick 6 is preferably designed according to 70-80L.
The control unit composed of the liquid level monitor 10 and the controller 9 automatically adjusts and controls the feeding amount of the spiral feeder 7, the spiral feeder 7 continuously feeds materials, and the feeding amount of the spiral feeder 7 is automatically adjusted according to the monitored liquid level change condition so as to ensure the stability of the liquid level of the kiln.
The charging barrel of the spiral charging machine 7 is provided with a heat-insulating sealing block 8, and the heat-insulating sealing block 8 is tightly attached to the front end of a charging opening formed by the upper brick 1 and the bottom brick 3. The heat preservation sealing block 8 is composed of a heat preservation material and a steel frame for fixing the heat preservation material, a locking screw is arranged on the steel frame, and the heat preservation sealing block 8 is fixed with the feeding cylinder of the spiral feeding machine 7 through the locking screw. Spiral feeder 7 installs before the dog-house, and earlier with 8 suit heat preservation sealing block on spiral feeder 7's reinforced barrel, 7 mounted position of spiral feeder confirm the back, remove heat preservation sealing block 8 and closely laminate with the dog-house front end that comprises last brick 1, end brick 3, guarantee the sealed of furnace gate mouth, lock the locking screw again, make the glass kiln dog-house constitute the enclosed construction. The barrel of the spiral feeder 7 is provided with a cooling device 15, which can cool the barrel of the spiral feeder 7, and the cooling device 15 can adopt a water cooling structure, as shown in fig. 1.
The utility model discloses to throwing intraoral material of material pile 11 and having realized the premelting effect. The upper part of a material pile 11 in the feeding port is heated by radiation of a natural gas burning gun 12 near a front wall 14 of the kiln, under the combined action of the temperature of a combustion space of the kiln, the temperature of the upper space of the material pile 11 is far higher than the initial reaction temperature of batch materials, the material pile 11 starts to enter a melting reaction stage, the temperature of the material pile 11 rises rapidly along with the slow entering of the material pile 11 into the kiln, and the melting rate is further accelerated. On the other hand, the lower part of the feed inlet adopts a bottom inclined surface structure, so that high-temperature glass liquid in the kiln enters the inclined surface of the feed inlet, and the lower part of the material pile 11 is heated by the high-temperature glass liquid at the lower part, so that the temperature is quickly increased to enter a melting reaction stage. Meanwhile, the inclined structure at the bottom of the lower part of the feeding port is more beneficial to the molten material pile 11 to slowly and orderly enter the kiln along with the flow of the molten glass until the molten material pile is completely molten. The area of the pre-melted material pile 11 entering the kiln can be adjusted by matching with the adjustment of the power of the electrode 13 close to the front wall 14 of the kiln, the area of the pre-melted material pile 11 floating on the liquid level of the molten glass is greatly influenced by the set power of the electrode 13, the power of the electrode 13 is increased, the temperature of the molten glass is increased, and the melting speed of the material pile 11 on the liquid level is accelerated; meanwhile, the set temperature of the burning lance 12 and the amount of the fed material also affect the area of the pre-melted material pile 11 entering the kiln.
The utility model discloses a glass kiln dog-house adopts enclosed construction, has realized the closed material mode of throwing, is favorable to the stability of kiln pressure, and the automatic material conveying method based on liquid level measurement system automatic adjustment and control spiral input can realize throwing the stability of material, guarantees the melting quality of kiln. The spiral feeder 7 does not extend into the high-temperature kiln, the cooling device 15 is arranged on the barrel of the spiral feeder 7, the barrel of the spiral feeder 7 can be cooled, the corrosion of the high-temperature environment to the barrel of the spiral feeder 7 is avoided, and the reliable operation of the spiral feeder 7 is ensured.
Claims (10)
1. Glass kiln dog-house structure, its characterized in that: including last brick (1), lid brick (2), end brick (3), bottom brick (4), left side brick (5) and right side brick (6), lid brick (2) set up on last brick (1), the lateral wall of bottom brick (4) is near the lateral wall setting of end brick (3), bottom brick (4) are the inclined plane brick, bottom brick (4) inclined plane highest point and the upper surface parallel and level of end brick (3), left side brick (5) and right side brick (6) constitute both sides face structure.
2. The glass furnace feeder port structure of claim 1, wherein: the length of the upper brick (1) in the feeding direction is shorter than that of the cover brick (2).
3. The glass furnace feeder port structure of claim 1, wherein: the length of the upper brick (1) in the feeding direction is 1/2-2/3 of the length of the cover brick (2).
4. The glass furnace feeder port structure of claim 1, wherein: the height of the upper surface of the bottom brick (3) is 10-100mm higher than the liquid level of the glass liquid in the kiln.
5. The glass furnace feeder port structure of claim 1, wherein: the height of the upper surface of the bottom brick (3) is 30-60mm higher than the liquid level of the glass liquid in the kiln.
6. The glass furnace feeder port structure of claim 1, wherein: the height H between the bottom of the inclined plane of the bottom brick (4) and the liquid level of the molten glass in the kiln is 20-200 mm.
7. The glass furnace feeder port structure of claim 1, wherein: the heat-insulating sealing block (8) is tightly attached to the front end of a feeding port formed by the upper brick (1) and the bottom brick (3).
8. The glass furnace feeder port structure of claim 7, wherein: the heat-preservation sealing block (8) is sleeved on the feeding cylinder of the spiral feeding machine (7) and fixed with the feeding cylinder of the spiral feeding machine (7).
9. The glass furnace feeder port structure of claim 8, wherein: and a cooling device (15) is arranged on the barrel of the spiral feeder (7).
10. The glass furnace feeder port structure of claim 1, wherein: the vertical end face of the bottom brick (4) contacting the molten glass in the kiln is flush with the front wall (14) of the kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020858140.3U CN212152057U (en) | 2020-05-20 | 2020-05-20 | Feeding port structure of glass kiln |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020858140.3U CN212152057U (en) | 2020-05-20 | 2020-05-20 | Feeding port structure of glass kiln |
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| CN212152057U true CN212152057U (en) | 2020-12-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112777919A (en) * | 2020-12-28 | 2021-05-11 | 彩虹显示器件股份有限公司 | Advanced substrate glass melting device and method |
| CN114292007A (en) * | 2021-12-17 | 2022-04-08 | 中建材蚌埠玻璃工业设计研究院有限公司 | Feeding device of glass batch for melting furnace |
| CN115872597A (en) * | 2022-12-09 | 2023-03-31 | 彩虹显示器件股份有限公司 | Structure and design method of feeding port of substrate glass melting furnace |
-
2020
- 2020-05-20 CN CN202020858140.3U patent/CN212152057U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112777919A (en) * | 2020-12-28 | 2021-05-11 | 彩虹显示器件股份有限公司 | Advanced substrate glass melting device and method |
| CN112777919B (en) * | 2020-12-28 | 2023-05-16 | 彩虹显示器件股份有限公司 | High-generation substrate glass melting device and method |
| CN114292007A (en) * | 2021-12-17 | 2022-04-08 | 中建材蚌埠玻璃工业设计研究院有限公司 | Feeding device of glass batch for melting furnace |
| CN114292007B (en) * | 2021-12-17 | 2023-10-20 | 中建材玻璃新材料研究院集团有限公司 | Feeding device of glass batch for melting furnace |
| CN115872597A (en) * | 2022-12-09 | 2023-03-31 | 彩虹显示器件股份有限公司 | Structure and design method of feeding port of substrate glass melting furnace |
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