CN205528376U - Tympanic bulla submerged combustion ware - Google Patents
Tympanic bulla submerged combustion ware Download PDFInfo
- Publication number
- CN205528376U CN205528376U CN201620085135.7U CN201620085135U CN205528376U CN 205528376 U CN205528376 U CN 205528376U CN 201620085135 U CN201620085135 U CN 201620085135U CN 205528376 U CN205528376 U CN 205528376U
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- China
- Prior art keywords
- gas
- combustion
- bubbling
- spout
- submerged burner
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
- C03B5/2356—Submerged heating, e.g. by using heat pipes, hot gas or submerged combustion burners
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
Abstract
The utility model provides a tympanic bulla submerged combustion ware, characterized by: this kind of tympanic bulla submerged combustion ware comprises the bubbler combination of a plurality of traditional single jets, or constitutes a plurality of gaseous spout settings on same tympanic bulla submerged combustion ware, and the gaseous spout of one of them part bloats the gas, and the gaseous spout of another part bloats combustion -supporting gas, and gas spout and combustion -supporting gas blowout mouth link to each other through inside gas circuit separately to communicate respective air supply line.
Description
Technical field
A kind of burner, particularly submerged burner.
Background technology
By its operation principle, burner (including submerged burner) can be defined as a kind of a kind of equipment that material is converted heat energy by this chemical reaction mode of burning, ejection will be converted, so that it fully burns by pre-mixing apparatus by proper proportion is mixed by air with fuel.
At present, surface heated method is all used with fuel continuous melting glass metal.It has several shortcoming being difficult to and overcoming: one is that the thermal efficiency is relatively low, and thermal losses is serious；Two is that melting rate is relatively low；Three is that the fuel gas temperature of melting tank combustion space is high, flow velocity big, very fast to kiln refractory corrosion, reduces kiln service life.In order to save the energy, reduce discharge and reduce cost and improve kiln service life, the most all replace surface heating, such as submerged combustion and heated by electrodes exploring more effective heating means.
But, up to now, so-called submerged combustion is from inserting in kiln at the bottom of kiln by gaseous fuel combustion device, the waste gas making burning is injected directly in the glass metal of molten bath with high temperature and high speed, stir glass metal, and major part heat is passed to glass metal and batch, make frit melt rapidly.
This method not only can make the heat of burning gases be fully absorbed by glass metal, heat loss is little, melting rate is high, energy-saving effect very notable (abroad introduce the melting rate of submerged combustion method up to 9 ~ 10 ton/square metre days, per kilogram glass metal heat consumption is below 1000 kilocalories).And owing to high-temperature gas seethes, glass metal is played stirring action, make the glass metal in pond evenly.The most identical with the temperature of watch crystal liquid in molten bath owing to leaving the EGT of glass metal again, thus reduce the temperature in melting furnaces space, extend the service life of kiln.
Submerged combustion method has many advantages, and therefore the U.S. including China, day, method, E Deng state all successively conduct in-depth research and test, but do not succeed in large-scale industrial application.
Its reason is, the method of this tradition submerged combustion has insoluble problem: 1, clear up problems: when spraying into combustion gas and air mixture in glass metal (combustion product), the operating condition of nozzle is relatively difficult, when only mixed gas consumption substantially exceeds and embraces with air or dry drum, found and just can be normally carried out.Owing to the fierce bubbling of glass metal seethes, making glass metal show bubble, the minute gas field trash of self significantly increases, and therefore, makes glass metal clarification highly difficult.2, fuel problem: occlusion or the blub composition that is mingled with mainly do not participate in the inactive gas of reaction in the melt, the nitrogen namely discharged in fuel combustion process, as: in combustion product produced by with the submerged combustion nozzle of natural gas one air gas mixture, nitrogen content is more than 70%, general combustion method then allows the nitrogen content in combustion product less than 30%, for plate glass, then preferably no more than 10% (weight).Therefore, this is also the main cause that air inclusions are many.Can effectively solve above-mentioned two problems by pure oxygen burning technique, but the problem brought is that flame temperature is too high, nozzle deteriorates too fast, cannot compensate or change again.3, combustor problem: due to burner be submergence in the melt, its quality, riding position and operation control to require the most than ever strict, and otherwise, once burning is broken down, and make glass metal enter people's solidification in it, then can not be continuing with.It addition, when glass metal reaches certain depth, the impulse force of nozzle is inadequate, flame does not the most enter glass metal, and refractory material sprays from the side.Qinhuangdao Glass Inst. the most just ran into this situation.Reduce nozzle diameter and can solve the problems referred to above, but the problem that calory burning is not enough can be caused.4, refractories: owing to glass metal acutely seethes in kiln, the glass metal that can be splashed out in superstructure space washes away, and general silica brick and chrome brick do not adapt to the needs of this melting furnaces.When arranging multiple burner noz(zle) at the bottom of pond, also weakening the intensity of refractory material.It addition, such as burn in liquation, natural gas (for the 7-10% of total amount in infeed kiln), can make heat exchange be greatly reinforced.Improving the directly amount of natural gas of burning in melting furnaces too much, refractory material is serious by erosion.5, the fluctuation of glass metal viscosity, bleed pressure and flow, the impact on mixture pressure and spray speed is the biggest so that it is be maintained in glass metal burning with being difficult to long term constant, easily causes de-fire or tempering phenomenon.6, the most key problem is: owing to being limited by material, and burner (especially bocca) is easily lost, the life-span is shorter, and both cannot compensate and also be difficult to change.So while through long-term research and test, be but difficult to put into actual application.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of bubbling submerged burner, it is characterized in that: this bubbling submerged burner operation principle is: by the combustion-supporting gas gas spout of at least one combustion gas gas spout and, in melt, each, simultaneously or successively bloat combustion gas and two kinds of bubbles of combustion-supporting gas；Due to separated by a distance between each gas spout of bubbler so that combustion gas bubble and combustion-supporting bubble are separated foam when each bloating, and they are separated by melt, and combustion reaction will not occur；When combustion gas and two kinds of bubbles of combustion-supporting gas are in the internal uphill process of liquation, can constantly expand change along with being gradually reduced of ambient pressure and greatly and contact；Two kinds of gases of its contact portion can burn and rapid increase, can form negative pressure bottom it, and by the two of its both sides kinds of bubbles to drawing together, forms the excessive bubble of half mixed half combustion；Then proceed to rise, and reach to be thoroughly mixed burning, form high-temperature flue gas bubble；Thus heat is passed to the liquation of surrounding, reach fusing and the purpose of homogenizing material；At melt liquid upper surface, being coated with one layer of raw materials batch layer fusion all the time, the combustion product gases in liquation escapes through this bed of material, and by draining after lowering the temperature with bed of material heat exchange；Combustion gas imperfect combustion in combustion product gases, meets oxygen combustion in molten surface and raw materials batch layer, and heats to raw materials batch；Along with raw materials batch layer bottom constantly melts, top layer constantly spreads the new bed of material, and melting furnaces just can continuously produce required liquation.
Above-mentioned bubbling submerged burner can be made up of the combination of multiple tradition one-jet bubbler；Also can be arranged on by multiple gas spouts on same bubbling submerged burner, a portion gas spout bloats combustion gas, and another part gas spout bloats combustion-supporting gas.Combustion gas spout is connected each via inner air path with combustion-supporting gas blowout mouth, and connects respective supply air line.
For preventing bubbling submerged burner to be etched, air cooling or water-cooled safeguard measure can be taked, to improve its service life.
This bubbling submerged burner can use heat resisting steel manufacture, for preventing bubbling submerged burner to be etched, can it be applied in combination with bubbling brick.
This bubbling submerged burner, the burner making combustion gas and combustion-supporting gas Forced Mixing with depended on pressure and speed is completely different.It makes the mixing naturally after departing from burner of combustion gas and combustion-supporting gas, reaches the purpose burnt completely.
Compared with conventional burners, bubbling submerged burner flow velocity is slow, and within the unit interval, the heat energy of output is less.Therefore need to arrange large number of spout on each bubbling submerged burner, to provide the heat energy needed for material melting.Advantage of this is that, material can be made to melt visibly homogeneously and be homogenized；Make flue gas large area, uniform, low speed, low temperature discharge melting furnaces, thus improve the thermal efficiency and the earth simplification furnace construction.
Above-mentioned bubbling submerged burner is arranged on bottom molten bath.The calorific intensity produced according to melting area size and each bubbling submerged burner, and the needs of melting process, determine number and the installation site of required bubbling submerged burner.Quantity and the quantity ratio of combustion gas gas spout and combustion-supporting gas gas spout in each bubbling submerged burner, and arrangement mode, relative position and distance is determined according to combustion efficiency.
The outlet diameter of combustion gas gas spout and combustion-supporting gas gas spout in above-mentioned bubbling submerged burner, according to its bottom molten bath present position, the liquation degree of depth, air pressure and the difference of required Air Bubble Size and different, can be from several millimeters to tens millimeters；Its bubbling frequency-adjustable.
In order to combustion gas can be burnt completely, in bubbling submerged burner, combustion gas gas spout can be different from coupling diameter and the pressure of combustion-supporting gas gas spout.
Above-mentioned combustion-supporting gas can be compressed air, oxygen-enriched or pure oxygen gas；Combustion gas can be natural gas, coal gas, liquefied petroleum gas etc..
Other submerged burner is compared, this bubbling submerged burner have the beneficial effect that 1, simple in construction, easy to manufacture；2, service life is long, low cost of manufacture；3, safe and reliable, burning is completely；4, melting efficiency is high, and liquation homo-effect is good；5, the erosion to refractory material is little；6, high-temperature flue gas heat-exchange time in liquation and raw materials batch layer is long, and heat utilization efficiency is high；7, it is suitable for pure oxygen high-temp combustion, is possible not only to melt high-melting-point material, and exhaust gas volumn is greatly reduced；8, the clarification and homogenization of liquation are conducive to；9, for energy-saving and emission-reduction, there is the most great economic and social benefit.
Accompanying drawing explanation
Fig. 1 is the configuration figure of one of this bubbling submerged burner.
Fig. 2 is bubbling submerged burner fundamental diagram.
Refractory material, 2. bubbling submerged burner, 3. combustion gas gas spout at the bottom of 1. kilns in figure, 3a. combustion-supporting gas gas spout, the most combustion-supporting bubble, 5. combustion gas bubble, 6. transition bubble, 7. high-temperature flue gas bubble, 8. liquation, 9. raw materials batch layer.
Detailed description of the invention
In Fig. 1, bubbling submerged burner 2 be by two kinds, multiple gas spout be arranged on same bubbler composition, a portion is combustion gas gas spout 3, and another part is combustion-supporting gas gas spout 3a.Combustion gas gas spout 3 and combustion-supporting gas gas spout 3a, be connected each via inner air path, and connect respective supply air line (not drawing in figure).
For preventing bubbling submerged burner to be etched, air cooling or water-cooled safeguard measure (not drawing in figure) can be taked, to improve its service life.
Bubbling submerged burner 2 can use heat resisting steel manufacture, for preventing bubbling submerged burner 2 to be etched, itself and bubbling brick can be applied in combination (not drawing in figure).
Bubbling submerged burner 2, the burner making combustion gas and combustion-supporting gas Forced Mixing with depended on pressure and speed is completely different.It makes the mixing naturally after departing from burner of combustion gas and combustion-supporting gas, to reach the purpose burnt completely.
Compared with conventional burners, this bubbling submerged burner 2 flow velocity is slow, and within the unit interval, the heat energy of output is less.Therefore need to arrange large number of spout on each bubbling submerged burner 2, to provide the heat energy needed for material melting.Advantage of this is that, material can be made to melt visibly homogeneously and be homogenized；Make flue gas large area, uniform, low speed, low temperature discharge melting furnaces, thus improve the thermal efficiency and the earth simplification furnace construction.
Bubbling submerged burner 2 is arranged on bottom molten bath.The calorific intensity produced according to melting area size and each bubbling submerged burner 2, and the needs of melting process, determine number and the installation site of required bubbling submerged burner 2.Quantity and the quantity ratio of combustion gas gas spout 3 and combustion-supporting gas gas spout 3a in each bubbling submerged burner 2, and position and distance relatively is determined according to combustion efficiency.
The outlet diameter of combustion gas gas spout 3 and combustion-supporting gas gas spout 3a in bubbling submerged burner 2, according to its bottom molten bath present position, the liquation degree of depth, air pressure and the difference of required Air Bubble Size and different, can be from several millimeters to tens millimeters；Its bubbling frequency-adjustable.
In order to combustion gas can be burnt completely, in bubbling submerged burner 2, combustion gas gas spout 3 can be different from coupling diameter and the pressure of combustion-supporting gas gas spout 3a.
In Fig. 2, describe this bubbling submerged burner operation principle: by the combustion-supporting gas gas spout 3a of at least one combustion gas gas spout 3 and, in melt 8, each, simultaneously or successively bloat combustion gas bubble 5 and combustion-supporting bubble 4；Due to separated by a distance between each gas spout of bubbling submerged burner 2 so that combustion gas bubble 5 and combustion-supporting bubble 4 are separated foam when each bloating, and they are separated by melt, and combustion reaction will not occur；When combustion gas bubble 5 and 4 two kinds of bubbles of combustion-supporting bubble are in the internal uphill process of liquation 8, can constantly expand change along with being gradually reduced of ambient pressure and greatly and contact；Two kinds of gases of contact portion can burn and rapid increase, can form negative pressure bottom it, and by the two of its both sides kinds of bubbles to drawing together, forms the excessive bubble 6 of half mixed half combustion；Then proceed to rise, and reach to be thoroughly mixed burning, form high-temperature flue gas bubble 7；Thus heat is passed to the liquation of surrounding, reach fusing and the purpose of homogenizing material；At melt liquid upper surface, being coated with one layer of raw materials batch layer 9 fusion all the time, the combustion product gases in liquation 8 escapes through this bed of material, and by draining after lowering the temperature with bed of material heat exchange；Combustion gas imperfect combustion in combustion product gases, meets oxygen combustion in molten surface and raw materials batch layer 9, and heats to raw materials batch；Along with raw materials batch layer 9 bottom constantly melts, top layer constantly spreads the new bed of material, and melting furnaces just can continuously produce required liquation.
Claims (4)
1. a bubbling submerged burner, it is characterized in that: this bubbling submerged burner is made up of the combination of multiple single jet bubblers, or multiple gas spouts are arranged on same bubbling submerged burner composition, a portion gas spout bloats combustion gas, another part gas spout bloats combustion-supporting gas, combustion gas spout is connected each via inner air path with combustion-supporting gas blowout mouth, and connects respective supply air line.
A kind of bubbling submerged burner the most according to claim 1, is characterized in that: combustion gas gas spout and the outlet diameter of combustion-supporting gas gas spout in above-mentioned bubbling submerged burner, from several millimeters to tens millimeters；Its bubbling frequency-adjustable.
A kind of bubbling submerged burner the most according to claim 1, is characterized in that: in order to combustion gas can be burnt completely, in bubbling submerged burner, combustion gas gas spout is different from the diameter of combustion-supporting gas gas spout and pressure.
A kind of bubbling submerged burner the most according to claim 1, is characterized in that: this bubbling submerged burner heat resisting steel manufacture, and is applied in combination with bubbling brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085135.7U CN205528376U (en) | 2016-01-28 | 2016-01-28 | Tympanic bulla submerged combustion ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085135.7U CN205528376U (en) | 2016-01-28 | 2016-01-28 | Tympanic bulla submerged combustion ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205528376U true CN205528376U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620085135.7U Expired - Fee Related CN205528376U (en) | 2016-01-28 | 2016-01-28 | Tympanic bulla submerged combustion ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205528376U (en) |
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2016
- 2016-01-28 CN CN201620085135.7U patent/CN205528376U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190128 |