CN1609023A - Method of repairing dog-hole lap brick of glass tank furnace in on-stream state - Google Patents
Method of repairing dog-hole lap brick of glass tank furnace in on-stream state Download PDFInfo
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- CN1609023A CN1609023A CNA2004100888423A CN200410088842A CN1609023A CN 1609023 A CN1609023 A CN 1609023A CN A2004100888423 A CNA2004100888423 A CN A2004100888423A CN 200410088842 A CN200410088842 A CN 200410088842A CN 1609023 A CN1609023 A CN 1609023A
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- dog
- hole
- front arch
- cooling
- water coolant
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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 method of repairing dog-hole lap brick of glass tank furnace in on-stream state includes the following steps: determining the size of new lap brick according to that in the dog-hole; adhering the new lap brick onto original lap brick; adding water cooling board on the new lap brick; setting forced air cooling system on the water cooling board for forced cooling. The said method makes the glass tank furnace reusable and prolongs the service life of the glass tank furnace.
Description
Technical field
The present invention relates to the glass melting field, more specifically, the present invention relates to the method for maintaining of glass melting furnace dog-hole.
Background technology
Picture tube is with in the production process of glass bulb in televisor, and the equipment of most critical is glass melting furnace, and the position of most critical is exactly a dog-hole in the glass melting furnace.
In order to choose the good glass metal of refining quality, be provided with the separation device of glass metal in the kiln pond between melting pool and work pool, Here it is dog-hole.Dog-hole is the culvert that is positioned at the tank furnace bottom that melting pool and work pool are communicated with.The effect of dog-hole is exactly near a glass metal when melting pool when flowing to the dog-hole, because of the fire bridge that is subjected to above the dog-hole stops, most of glass metal is blocked and moves to refluxing.The good glass metal that sinks to deep layer could enter work pool by dog-hole to have only fusing, thereby has stopped that advantageously sediment, foam and the glass metal that fusing is not good enter work pool, have played the effect of selecting glass metal.The cross section of dog-hole is very little, is in bottom, kiln pond again, and therefore, the flow velocity of glass metal in dog-hole is very fast.In addition, because all glass metals all will enter work pool through dog-hole, glass metal is quite serious to washing away of producing of dog-hole inwall (the particularly front arch on top), erosion.Generally speaking, when tank furnace runs to the later stage (more than 5 years), the dog-hole of most of tank furnace all can go wrong more or less.
Up to now, those skilled in the art has taked various method of cooling to prolong the life-span of dog-hole.Yet because the position of the upper cover plate brick of dog-hole is far below the about 500mm of glass metal bit line, glass metal is very big at the pressure of upper cover plate brick position generation.When the big area damage appears in the front arch of dog-hole in the tank furnace operational process, according to conventional process of the prior art, just must stop work and blowing carries out large repairs to tank furnace, and this will inevitably bring enormous economic loss to the production of tank furnace and even factory.
Therefore, how the dog-hole front arch to glass melting furnace is repaired effectively under the state of not stopping work, and reduces financial loss, prolongs the work-ing life of glass melting furnace, reduce production costs, the service efficiency that improves glass just becomes the problem that this area receives much attention always.
Summary of the invention
At problem of depositing in the prior art and defective, the object of the present invention is to provide a kind of method of how under the state of not stopping work, the dog-hole front arch of glass melting furnace to be repaired effectively.
According to the present invention, a kind of method of repairing the dog-hole front arch under the state that glass melting furnace is not stopped work is provided, may further comprise the steps: the size of determining new front arch according to dog-hole front arch to be subsidized; New front arch is subsidized on the former front arch of dog-hole; On new front arch, add cooled plate; The forced air cooling is set, to force cooling on cooled plate.
Description of drawings
Fig. 1 is the side cross-sectional schematic of tank furnace, and the erosion condition that tank furnace uses later stage dog-hole front arch is shown.
Fig. 2 is the side cross-sectional schematic of tank furnace, illustrates according to the present invention the dog-hole front arch to be subsidized with refractory materials and air-cooled and water-cooled in addition.
Fig. 3 is the schematic top plan view of tank furnace, and the air cooling system of throat cheek is shown.
Embodiment
Accompanying drawing 1 shows production unit---the synoptic diagram of the dog-hole of glass melting furnace of television picture tube with glass bulb.
As shown in Figure 1, dog-hole 5 is communicated with melting pool 1 and work pool 2 get up, and is positioned at the bottom of glass melting furnace.The position of the upper cover plate brick 4 of dog-hole is far below glass metal bit line 3 about 500mm, and the pressure that glass metal produces in upper cover plate brick position is very big.In process of production, in the time of near the glass metal in the melting pool 1 flows to dog-hole 5, the fire bridge that most of glass metal is subjected to above the dog-hole stops that the good glass metal that sinks to deep layer enters work pool 2 by dog-hole 5 to have only fusing and moving to refluxing.The cross section of dog-hole is very little, so the flow velocity of glass metal in dog-hole is very fast.In addition, because all glass metals all will enter work pool through this, glass metal is quite serious to washing away of producing of dog-hole inwall (the particularly front arch on top), erosion.Reference numeral 6 in the accompanying drawing 1 has schematically marked the encroachment line of the upper cover plate brick of dog-hole.
According to the present invention, as shown in Figure 2, at first the top front arch 4 of dog-hole is cleared up, afterwards, select to make new front arch 9 with the refractory materials of the identical material of former top front arch, be processed into suitable size, directly subsidize on former top front arch 4, realize the obstruction and the repairing of seepage front arch.In addition, can on new front arch, add cooled plate, and on cooled plate, can set up a The forced air cooling, provide auxiliary cooling on the cooled plate 8 to directly act on by airduct 7.
The cooling air that The forced air cooling adopted is a cooling air, and the temperature of cooling air is below 30 ℃, and static pressure is between 0.8-2KPa.Advantageously, with the cooling air quantity of above-mentioned The forced air cooling be set at about 4-5 ten thousand stere/hour, more preferably, with cooling air quantity be set at about 4.5 ten thousand steres/hour.
Preferably, can adopt the polylith cooled plate 8 of strip in a narrow margin, will be distributed in separatedly therebetween on the front arch 9 that newly subsidizes, feasible cooling air from The forced air cooling can directly act on by the gap between each cooled plate on the new front arch.
Preferably, the temperature in that feeds the water coolant in the cooled plate is set at below 30 ℃, and pressure is between 0.2-0.4MPa, and the temperature out of water coolant is below 40 ℃.
Preferably, be 15 kilograms/hour with the flow set of water coolant, the pressure of water coolant is set 0.25MPa.With this understanding, the temperature of dog-hole top front arch will be controlled in 130 ℃-150 ℃ the scope, thereby delay the erosion of glass metal to front arch effectively.More preferably, be 25 kilograms/hour with the flow set of water coolant, the pressure of water coolant is set at 0.35MPa.With this understanding, the temperature of dog-hole top front arch will be controlled in 105 ℃-120 ℃ the scope.
The new front arch 9 that is adopted can be by making with the refractory materials of the identical material of former top front arch.
By adopting the method for repairing dog-hole front arch of the present invention, under the state that glass melting furnace is not stopped work
In addition, the weight of former front arch (weather, become very thin) and throat cheek is produced adverse consequences, can bracing means be set in the side wall both sides of dog-hole and be fixed in order to prevent new front arch.
Preferably, as shown in Figure 3, a wind outside cooling system can also be set, cooling air acts on the side wall of dog-hole by airduct 11, to add the cooling of strong convection liquid hole side wall, further alleviate of the erosion of glass metal stream, thereby strengthen the reliability that front arch is subsidized side wall.
By adopting the present invention, can implement to repair effectively to the dog-hole front arch down hot, fundamentally solved in the prior art the tank furnace operation later stage because of the be forced to stop production problem of overhaul of dog-hole seepage, prolonged the work-ing life of tank furnace greatly, significantly reduced financial loss.
In addition, the glass defect by adopting the simple and safe direct air cooling way of pressure in that dog-hole is outside, can reduce effectively the erosion that is subjected to because of dog-hole front arch, side wall to cause has improved glass quality, has satisfied processing requirement.
Claims (10)
1, a kind of method of repairing the dog-hole front arch under the state that glass melting furnace is not stopped work may further comprise the steps:
Determine the size of new front arch according to dog-hole front arch to be subsidized;
New front arch is subsidized on the former front arch of dog-hole;
On new front arch, add cooled plate;
The forced air cooling is set, to force cooling on cooled plate.
2, method according to claim 1 is characterized in that: the material of the new front arch that is adopted is identical with former front arch.
3, method according to claim 1 and 2, it is characterized in that: adding the cooled plate that is located on the new front arch is the cooled plate of strip in a narrow margin of the spaced apart even setting of polylith, and feasible cooling air from The forced air cooling can act on by the gap between each cooled plate on the new front arch.
4, method according to claim 3 is characterized in that: at the side wall of dog-hole bracing means is set and fixes.
5, method according to claim 1 and 2 is characterized in that: the cooling air quantity of described The forced air cooling be about the 4-5 ten thousand stere/hour.
6, method according to claim 1 and 2 is characterized in that: set up the wind outside cooling system at the side wall of dog-hole, to reduce the erosion of liquid stream to side wall.
7, method according to claim 5 is characterized in that: the cooling air quantity of described The forced air cooling be set at about 4.5 ten thousand steres/hour.
8, method according to claim 1 and 2 is characterized in that: the temperature in that feeds the water coolant in the cooled plate is set at below 30 ℃, and pressure is between 0.2-0.4MPa, and the temperature out of water coolant is below 40 ℃.
9. method according to claim 8 is characterized in that: with the flow set of water coolant is 15 kilograms/hour, and the pressure of water coolant is set 0.25MPa.
10. method according to claim 8 is characterized in that: with the flow set of water coolant is 25 kilograms/hour, and the pressure of water coolant is set at 0.35MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100888423A CN1266057C (en) | 2004-11-05 | 2004-11-05 | Method of repairing dog-hole lap brick of glass tank furnace in on-stream state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100888423A CN1266057C (en) | 2004-11-05 | 2004-11-05 | Method of repairing dog-hole lap brick of glass tank furnace in on-stream state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1609023A true CN1609023A (en) | 2005-04-27 |
| CN1266057C CN1266057C (en) | 2006-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100888423A Expired - Fee Related CN1266057C (en) | 2004-11-05 | 2004-11-05 | Method of repairing dog-hole lap brick of glass tank furnace in on-stream state |
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| CN (1) | CN1266057C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045278A (en) * | 2016-04-27 | 2016-10-26 | 长兴旗滨玻璃有限公司 | A hot patching method for a mouse hole of a glass melting furnace |
| CN109631588A (en) * | 2019-01-31 | 2019-04-16 | 王贵江 | A kind of method for maintaining of all-electric melting kiln |
-
2004
- 2004-11-05 CN CNB2004100888423A patent/CN1266057C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045278A (en) * | 2016-04-27 | 2016-10-26 | 长兴旗滨玻璃有限公司 | A hot patching method for a mouse hole of a glass melting furnace |
| CN106045278B (en) * | 2016-04-27 | 2019-04-02 | 长兴旗滨玻璃有限公司 | A kind of glass melter rat hole hot patching method |
| CN109631588A (en) * | 2019-01-31 | 2019-04-16 | 王贵江 | A kind of method for maintaining of all-electric melting kiln |
| CN109631588B (en) * | 2019-01-31 | 2019-12-03 | 王贵江 | A kind of method for maintaining of all-electric melting kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1266057C (en) | 2006-07-26 |
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