CN211946777U - All-electric melting platinum-free gold crucible optical glass kiln - Google Patents
All-electric melting platinum-free gold crucible optical glass kiln Download PDFInfo
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- CN211946777U CN211946777U CN202020486636.2U CN202020486636U CN211946777U CN 211946777 U CN211946777 U CN 211946777U CN 202020486636 U CN202020486636 U CN 202020486636U CN 211946777 U CN211946777 U CN 211946777U
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- bowl
- electric melting
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- Glass Melting And Manufacturing (AREA)
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Abstract
The utility model discloses an all-electric melting platinum-free crucible optical glass furnace, which comprises a cold top electric melting furnace body, wherein the cold top electric melting furnace body is provided with a smoke exhaust area, a melting area, a clarifying area and a stirring area; the corundum bowl or component is arranged in the stirring area and is used for receiving the clarifying area, and the corundum bowl or component is used for containing glass liquid and stirring; and the platinum flange is arranged at the bottom of the corundum feed basin, is provided with a platinum pipe and is fixed through a flange sheet. The utility model discloses a set up corundum bowl and corundum bowl subassembly, practice thrift the cost, guarantee product quality, avoid in the past need use platinum crucible stirring glass liquid, the great trouble of loss.
Description
Technical Field
The application belongs to the technical field of glass kilns, and particularly relates to an all-electric melting platinum-free gold crucible optical glass kiln.
Background
The glass furnaces for manufacturing B270 and K9 series optical materials and plates have to use platinum crucibles in traditional construction, the platinum crucibles account for 50% of the cost of equipment in the manufacture of the glass furnaces, most of electric melting furnaces for melting high-boron optical glass in China are small hot top furnaces, and compared with hot top flame furnaces, cold top electric melting furnaces have the remarkable advantages of energy conservation, quality improvement, cost reduction and the like. In the hot top kiln, the high temperature of the furnace surface causes the change of the volatilization rate of elements such as boron, potassium and the like, so that the glass is melted unevenly. Meanwhile, the volatilization of boron and potassium of the hot-top electric melting furnace seriously corrodes the upper structure in the furnace, thereby not only shortening the service life of the furnace, but also dropping the crown into molten glass and seriously affecting the quality of the glass.
SUMMERY OF THE UTILITY MODEL
In view of this, the technical problem to be solved by the present application is to provide an all-electric melting platinum-free crucible optical glass furnace, which saves cost and ensures product quality by arranging a corundum bowl or component, and avoids the trouble of large loss caused by the need of stirring glass liquid by using a platinum crucible in the past.
In order to solve the technical problem, the utility model discloses an all-electric melting platinum-free crucible optical glass furnace, which comprises a cold top electric melting furnace body, wherein the cold top electric melting furnace body is provided with a smoke exhaust area, a melting area, a clarifying area and a stirring area; the corundum bowl or component is arranged in the stirring area and is used for receiving the clarifying area, and the corundum bowl or component is used for containing glass liquid and stirring; and the platinum flange is arranged at the bottom of the corundum feed basin, is provided with a platinum pipe and is fixed through a flange sheet, so that the problem of glass liquid leakage is solved.
According to an embodiment of the present invention, the platinum flange includes a central bowl and a flange mounting portion; a straight pipe part respectively positioned at the central material basin and the downward part of the flange mounting part; and a diagonal pipe portion extending below the straight pipe portion.
According to the utility model discloses an embodiment, wherein above-mentioned cold top electric melting furnace body still includes flue, dust pelletizing system.
Compared with the prior art, the application can obtain the following technical effects:
in the past, the platinum crucible is used for producing optical glass materials, the cost of the platinum crucible is high (the platinum dosage of the crucible is about 25 kg), the platinum loss caused by high temperature in production is large, the service cycle is short (the common service cycle is 3-5 months), the shutdown maintenance cost is high, and the product quality is seriously influenced.
The total process cost of the corundum bowl is low (less than 2 percent of the total cost of a platinum crucible), the corundum bowl can be normally produced for more than 3 years, a lot of maintenance cost can be saved, and the product quality can be improved.
Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a side view of an all-electric crucible optical glass furnace according to an embodiment of the present application;
FIG. 2 is a schematic view of a platinum flange according to an embodiment of the present application.
Reference numerals
The cold top electric melting furnace comprises a cold top electric melting furnace body 10, a smoke discharging area 20, a melting area 30, a clarifying area 40, a stirring area 50, a corundum bowl 60, a platinum flange 70, a central bowl and flange mounting part 71, a straight pipe part 72 and an inclined pipe part 73.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
Referring to fig. 1 and 2 together, fig. 1 is a side view of an all-electric crucible optical glass furnace according to an embodiment of the present application; FIG. 2 is a schematic view of a platinum flange according to an embodiment of the present application. As shown in the figure, an all-electric melting crucible optical glass furnace comprises a cold top electric melting furnace body 10, wherein the cold top electric melting furnace body 10 is provided with a smoke exhaust area 20, a melting area 30, a clarifying area 40 and a stirring area 50; the corundum bowl 60 or component is arranged in the stirring area 50 and is used for receiving the clarifying area 40, and the corundum bowl 60 or component is used for containing glass liquid and stirring; and a platinum flange 70 installed at the bottom of the corundum bowl 60, the platinum flange 70 having a platinum pipe and fixed by a flange plate.
The utility model discloses an in the embodiment, cold top electric melting furnace body 10 adopts cold top formula kiln, has exhaust area 20, melts district 30, clarification district 40 and stirring district 50, still includes flue, dust pelletizing system. The stirring area 50 is internally provided with a corundum bowl 60 for containing glass liquid, and can be combined for use as required without an additional platinum crucible. The platinum flange 70 is used in cooperation with the corundum bowl 60, is made of a platinum pipe and is fixed by a flange sheet, so that molding equipment is installed below the platinum pipe, and the platinum pipe is convenient to use.
Specifically, the platinum flange 70 includes a central bowl and flange mounting portion 71; downward straight pipe portions 72 respectively located on both sides of the central bowl and flange mounting portion 71; and a diagonal duct portion 73 extending below the straight duct portion 72. In the embodiment, the platinum flange 70 can be stably matched with the corundum bowl 60, so that the corrosion of molten glass to corundum materials is improved, the leakage of the molten glass is prevented, the quality of the molten glass is improved, and the flange is convenient to mount and replace.
Preferably, the corundum bowl 60 or component thereof contains 80% silica, 2.6% alumina, 0.3% calcium oxide, 5.1% sodium oxide, 12% boron trioxide.
Preferably, the electrode is a water jacket-free molybdenum electrode.
The utility model also provides a technology of manufacturing full-electric melting platinum-free gold crucible optical glass kiln, include:
step a: the furnace type design provides a design of a 2-ton straight shallow pool electric melting furnace or a 3.5-ton V-type shallow pool electric melting furnace;
step b: the refractory material is selected, and blanks of 80% of silicon trioxide, 2.6% of aluminum oxide, 0.3% of calcium oxide, 5.1% of sodium oxide and 12% of boron trioxide are provided;
step c: pouring and molding, namely mixing the blanks, molding a corundum bowl or a component blank thereof by pouring, and cutting and grinding the corundum bowl or the component blank to form the corundum bowl or the component blank;
step d: constructing a furnace, namely constructing a furnace body of the cold top electric melting furnace, and putting the corundum material basin combination, the platinum flange and the platinum pipe into the furnace body;
step e: electrode arrangement and electric control.
The measured data are as follows: melting furnace productivity: the daily yield is 1500kg-8000kg of optical material and optical plate.
Melting rate: v1500 kg/m3
The glass melting temperature t is 1650 DEG C
Molten glass density: p 2.53t/m3
In addition, the kiln can produce optical materials such as B270, K9 and the like. The furnace life can reach at least 3 years. The melting rate of the electric melting furnace is 1.8t/d.m 3. Melting energy consumption: 1.2-1.5kwh/kg at the early stage; the later period is 1.4-1.7 kwh/kg. Energy consumption of finished glass products: < 2.2 kwh/kg. The stirring throughput of the glass liquid of the corundum bowl is more than 80-160Kg/h, and the bowl is free of maintenance for more than 3 years. The quality of the glass is as follows: meets the national standard and is higher than the same level.
It is to be understood that, in the past, the production of optical glass materials has been carried out by using platinum crucibles, which have high cost (the platinum amount of the crucibles is about 25 kg), large platinum loss caused by high temperature in production, short service cycle (the service cycle is generally 3 to 5 months), high maintenance cost after shutdown, and seriously affected the product quality.
The utility model provides a, corundum bowl is with low costs (the total price is less than 2% of platinum crucible), and corundum bowl can normally produce more than 3 years, can practice thrift a lot of cost of maintenance and guarantee product quality's promotion.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (3)
1. An all-electric melting platinum-free gold crucible optical glass furnace is characterized by comprising:
the cold top electric melting furnace comprises a cold top electric melting furnace body, a cooling device and a cooling device, wherein the cold top electric melting furnace body is provided with a smoke exhaust area, a melting area, a clarifying area and a stirring area;
the corundum bowl or component is arranged in the stirring area and is used for bearing the clarifying area, and the corundum bowl or component is used for containing glass liquid and stirring; and
and the platinum flange is arranged at the bottom of the corundum feed basin, is provided with a platinum pipe and is fixed through a flange sheet.
2. An all-electric platinum-free crucible optical glass furnace as in claim 1, wherein the platinum flange comprises a central bowl and flange mount; a straight pipe part respectively positioned at the central material basin and the downward part of the flange mounting part; and a diagonal pipe portion extending below the straight pipe portion.
3. The all-electric platinum-free crucible optical glass furnace as claimed in claim 1, wherein the cold top electro-fusion furnace body further comprises a flue, a dust removal system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020486636.2U CN211946777U (en) | 2020-04-07 | 2020-04-07 | All-electric melting platinum-free gold crucible optical glass kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020486636.2U CN211946777U (en) | 2020-04-07 | 2020-04-07 | All-electric melting platinum-free gold crucible optical glass kiln |
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| Publication Number | Publication Date |
|---|---|
| CN211946777U true CN211946777U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020486636.2U Expired - Fee Related CN211946777U (en) | 2020-04-07 | 2020-04-07 | All-electric melting platinum-free gold crucible optical glass kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253047A (en) * | 2020-04-07 | 2020-06-09 | 江苏亚太光学有限公司 | All-electric melting platinum-free gold crucible optical glass kiln |
-
2020
- 2020-04-07 CN CN202020486636.2U patent/CN211946777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253047A (en) * | 2020-04-07 | 2020-06-09 | 江苏亚太光学有限公司 | All-electric melting platinum-free gold crucible optical glass kiln |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201117 Termination date: 20210407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |