CN101830628A - Method and device for preheating batch by using waste heat of fume from pure-oxygen combustion glass furnace - Google Patents
Method and device for preheating batch by using waste heat of fume from pure-oxygen combustion glass furnace Download PDFInfo
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- CN101830628A CN101830628A CN201010167263A CN201010167263A CN101830628A CN 101830628 A CN101830628 A CN 101830628A CN 201010167263 A CN201010167263 A CN 201010167263A CN 201010167263 A CN201010167263 A CN 201010167263A CN 101830628 A CN101830628 A CN 101830628A
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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
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- 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
Abstract
The invention relates to a method and a special device for preheating a batch by using the waste heat of fume from a pure-oxygen combustion glass furnace. The method comprises the following steps: granulating the glass batch; dehydrating and drying the grains; and preheating the grains by using a multilayer vertical turning plate preheating mode, wherein the glass batch and the hot fume are contacted indirectly, namely the fume radiates heat to the glass batch by convection, and the glass batch is preheated by a multilayer turning plate preheater to above 400 DEG C and then is delivered to the next process step. Multiple layers of turning plates and multiple flues are arranged in the preheating device, a fume inlet communicated with the flues is positioned on the outer side of the side water on the lower part of the preheater, a fume outlet communicated with the flues is positioned on the outer side of the other side wall on the upper part of the preheater, and the fume inlet and the fume outlet are arranged diagonally; the special preheating device is used to preheat the glass batch, the utilization rate of the waste heat of the high-temperature fume is high, no smoke dust pollution is produced; under self suction, the fume rises along the flues, so no power is consumed; the vertical structure occupies small floor area, so the replacement of space for time is realized; and the promotion and implementation of the device are easy.
Description
Technical field
The present invention relates to a kind of method and special-purpose primary heater unit that utilizes the high-temperature flue gas preheating glass batch of oxy-fuel combustion glass melting furnace generation, melting furnaces high-temperature flue gas waste heat utilizes the field again in the genus glass production process.
Background technology
In every thermosteresis of glass melter, fume afterheat amount proportion maximum, its heat of taking away accounts for about 30% of melting furnaces total energy consumption.Therefore, how to improve the recycling of melting furnaces smoke discharging residual heat, be the heat subject of industry research always.
The full-oxygen combustion of glass melter is exactly to change traditional air fuel firing system into oxygen-fuel combustion system, with the efficiency of combustion of raising fuel, thereby reduces fuel consumption and the melting rate that improves melting furnaces.The total oxygen melting furnace structure is similar to unit kiln, and breastwork and big arch adopt electrocast refractories, and the side wall that the full-oxygen combustion device is arranged in the molten bath superstructure is staggered, and distribution flue in kiln side is so that across the glass metal surface combustion.Products of combustion leaves kiln by metal level at the other end, by the waste gas flue, enters heat reclamation device.Full-oxygen combustion does not commutate, and combustion gases are long at kiln residence time, and flame, the gentle furnace pressure of kiln are stablized, and help fusing, the clarification of glass, can reduce intravitreous bubble, blub and striped.
The flue-gas temperature that oxy-fuel combustion glass melting furnace is directly discharged is up to 1200 ℃, so having a high potential of reclaiming of flue gas heat, efficiently utilizes the waste heat in the glass production to become the effective way that reduces the glass energy consumption.The most of waste heat boiler that adopts of domestic flue gas waste heat recovery, produce the saturation steam of 0.4～0.8MPa, but because season, region are different with the process steam situation, the effect of recycling is very undesirable, and utilizes waste heat boiler or cogeneration that bigger energy waste is all arranged.
Publication number is pre-heating mean and the device that the patent application of CN101328005A discloses a kind of full-oxygen combustion glass batch, has proposed a kind of form heat exchange of conducting by radiation between high-temperature flue gas and the admixtion that utilizes, and has certain recovering effect; But the preheating chamber of this primary heater unit only for having the container of interlayer, only depends on flue gas to go straight up in interlayer the glass batch that is in container intracavity is carried out preheating, causes to produce the preheating inequality; Simultaneously, in this primary heater unit glass batch from top to bottom with interlayer in from the bottom to top flue gas heat exchange time short, be difficult to reach the preheating temperature of this admixtion, thereby fume afterheat utilizes effect undesirable, energy waste is big; In addition, mixed admixtion is directly sent into primary heater unit, problems such as the flying upward of ultrafine powder in the admixtion, putty, sizing and bed of material skewness can appear, the temperature of fusion height that causes glass batch, fusing time is long, the flue dust that produces can pollute admixtion, causes the quality of glassy product to can not get guaranteeing.
Summary of the invention
In order to solve the defective that exists in the above-mentioned prior art, the purpose of this invention is to provide that a kind of energy waste is low, the method for the using waste heat of fume from pure-oxygen combustion glass furnace preheating glass batch that utilizes rationally, can not exert an influence to the quality of glassy product, the primary heater unit of realizing this method also is provided simultaneously.
To achieve these goals, the present invention adopts following technical scheme: a kind of primary heater unit of glass batch, comprise hopper and connected preheating chamber, and described hopper is a broach hopper, described preheating chamber is a rectangular parallelepiped, also is provided with a cone-shaped cloth device between broach hopper and rectangular parallelepiped preheating chamber; Wherein,
The longitudinal interval many flues of arranging in the inner chamber of rectangular parallelepiped preheating chamber, and laterally be provided with pass through for material some groups multilayer turnover panels up and down in the space between many flues side by side, turnover panel and flue are arranged in a crossed manner each other, leave a spacing between the flue sidewall of each turnover panel and its both sides respectively.
Above-mentioned turnover panel is the tabular structure of rectangle, its long to medullary ray be provided with a major axis, both wings weld the bearing socket on the two ends of major axis and the described preheating chamber two opposite side walls with major axis.
The turnover panel multilayer that be arranged in parallel up and down, spacing is 400-700mm between the upper and lower layer turnover panel; The quantity of every layer of turnover panel setting lacks 1 than the quantity that flue is provided with.
Be interval with a plurality of dividing plates from top to bottom in the above-mentioned flue inner chamber, dividing plate one end is fixed on the flue internal chamber wall, and the other end and flue sidewall have spacing and form breach, and the breach direction of adjacent two dividing plates is opposite.
Above-mentioned flue is the 3-6 bar, be positioned at outermost two flue outer walls respectively with this preheating chamber longitudinally inner side-wall fixedly connected; The two ends of middle flue are affixed with the inwall at the forward and backward two ends of preheating chamber respectively.
Gas approach is established in above-mentioned preheating chamber lower end, and a side of flue gas inlet tube is provided with many flue gases to be in charge of, and every flue gas is in charge of with a corresponding flue bottom and is communicated with; Exhanst gas outlet is established in the upper end of preheating chamber, and a side of smoke outlet tube is provided with many flue gases to be in charge of, and every flue gas is in charge of with a corresponding flue top and is communicated with, and the gas approach of every flue is independently with exhanst gas outlet and is communicated with.
Be provided with the drapery panel that polylith is trapezoidal shape in the above-mentioned cone-shaped cloth device, be uniformly distributed in this cone-shaped cloth device; The hypotenuse at the forward and backward two ends of this drapery panel is affixed with two skew walls of described cone-shaped cloth device front and back ends respectively; The base of drapery panel and with it side welding longitudinally of corresponding described flue top fixing, another side vertical weld that makes progress is connected to a blocking material plate that joins with described drapery panel inclined-plane longitudinally on described flue top.
The surface of above-mentioned drapery panel is radial fin; Its material is a wear-resisting steel plate.
The sidewall of above-mentioned broach hopper, cone-shaped cloth device and preheating chamber is double-layer plate and constitutes, and is provided with thermal insulation layer between double-layer plate.
To achieve these goals, technical scheme of the present invention also comprises the method that adopts a kind of preheating batch by using waste heat of fume from pure-oxygen combustion glass furnace, this pre-heating mean utilizes above-mentioned primary heater unit, comprise the high-temperature flue gas of discharging, to the preheating procedure of implementing by the glass batch of plurality of raw materials mixed preparing with oxy-fuel combustion glass melting furnace; Concrete steps are as follows:
1) glass batch carries out granulation earlier before entering preheating procedure, and the granularity of pellet is 5～30mm;
2) high-temperature flue gas with oxy-fuel combustion glass melting furnace dilutes with air, and this high-temperature flue gas is cooled to below 900 ℃;
3) with the pellet of step 1) after dehydration, drying, send into the broach hopper of above-mentioned primary heater unit; Simultaneously, with step 2) cooled high-temperature flue gas is delivered in the described primary heater unit by smoke inlet; When described high-temperature flue gas passes through this primary heater unit, to built-in pellet conduction heat, described pellet is implemented indirect preheating with radiation mode, the glass batch preheating temperature is sent into next procedure after reaching more than 400 ℃.
Owing to adopted technique scheme, beneficial effect of the present invention is as follows: 1) by multilayer turnover plate type preheating method, can increase the heat exchanger time of flue gas and glass batch, make full use of fume afterheat, make admixtion reach higher preheating temperature, thereby improve thermo-efficiency; Adopt vertical structure can realize trading space for time, and avoided taking horizontal space in the glasswork, make the easier realization of this technology.2) glass batch is before preheating, carry out granulated processed earlier, the admixtion of granulation can shorten the glass melting time, effectively improve burn-off rate, reduce temperature of fusion and fuel consumption, in addition the admixtion of the granulation problem such as inhomogeneous avoiding flying upward of ultrafine powder by the last layer turnover panel in one deck turnover panel course of conveying down and expecting that layering causes; Thereby reach the purpose of conserve energy, reduction glass production cost and minimizing smoke discharge amount.3) dehydrate earlier after the glass batch granulation, avoided admixtion problems such as putty, sizing in conveying and warm.4) in the vertical turnover panel preheating chamber of multilayer, glass batch relies on the gravity of self downward gradually to lower floor's preheating chamber by the upper strata preheating chamber, flue gas relies on the draft of self to be made progress gradually to the upper strata preheating chamber by lower floor's preheating chamber, does not need to add power again and carries, thereby reduce power consumption.5) in the interior preheating chamber that is provided with the vertical turnover panel of multilayer, adopt the mode of indirect preheating, flue gas is passed to flue sidewall by convection type, and flue sidewall is passed to admixtion with conduction pattern again, thereby has avoided the problem of smoke contamination admixtion.
Description of drawings
Fig. 1 is the primary heater unit diagrammatic cross-section of special use of the present invention
Fig. 2 is that Figure 1A-A is to structural representation
Fig. 3 is that Figure 1B-B is to structural representation
Fig. 4 is that Fig. 1 C-C is to structural representation
Embodiment
The present invention utilizes the method for the high-temperature flue gas preheating glass batch of oxy-fuel combustion glass melting furnace and special-purpose primary heater unit.Wherein:
The method of preheating glass batch comprises the high-temperature flue gas of discharging with oxy-fuel combustion glass melting furnace, to implemented the operation of preheating by the glass batch of plurality of raw materials mixed preparing; Concrete steps are as follows:
1) glass batch carries out granulation earlier before entering preheating procedure, and the granularity of pellet is 5～30mm;
2) before the high-temperature flue gas of oxy-fuel combustion glass melting furnace enters this preheating procedure, also comprise the step of carrying out the air dilution, this high-temperature flue gas is cooled to below 900 ℃;
3) pellet of step 1) is sent into special-purpose primary heater unit after dehydration, drying; Simultaneously, with step 2) cooled high-temperature flue gas is delivered in the special-purpose primary heater unit by smoke inlet; When described high-temperature flue gas passes through this primary heater unit, to described pellet conduction heat, described pellet is implemented indirect preheating with radiation mode, the glass batch preheating temperature is sent into next procedure after reaching more than 400 ℃.
The high-temperature flue gas of oxy-fuel combustion glass melting furnace is 1200 ℃, after the air dilution is cooled to below 900 ℃, establish in the gas approach of the primary heater unit by special use is delivered to many flues independently separately, flue is provided with 3～6, each flue vertical arrangement in primary heater unit; Each flue is introduced separately into circuitous from the bottom to top rising of high-temperature flue gas of chimney intake, is discharged by exhanst gas outlet again; Many flue is provided with at interval, is provided with multilayer turnover panel up and down between adjacent 2 flues, and the multilayer turnover panel is provided with 3～7 layers, and every layer of turnover panel flue sidewall adjacent with it constitutes a material preheating space, and multilayer turnover panel and many flues constitute a plurality of material preheating spaces; Through the glass batch of above-mentioned granulation after being higher than dehydration under 120 ℃ the temperature, drying, by transport unit it is sent in the vertical hopper of this primary heater unit, warp disperses the glass batch that enters to send in the material preheating space that is made of the upper strata turnover panel high-temperature flue gas indirect contact preheating of passing through in pellet and the flue with the cone-shaped cloth device that this hopper below joins; After the preheating 15～30 minutes, turn over 90 ° under the turnover panel at pellet place, unload to following one deck turnover panel, once more with flue in the flue gas indirect contact preheating passed through; After the preheating 15～30 minutes, pellet turns over down once more; By that analogy, pellet is through the preheating successively of multilayer turnover panel, successively turn over down, and the residence time on every turnover panel is 15～30 minutes, and during to undermost turnover panel, the preheating temperature of pellet reaches more than 400 ℃; Unload then to a feed bin, deliver to next procedure;
Realize the primary heater unit of the pre-heating mean special use of above-mentioned glass batch, this primary heater unit be described in further detail by accompanying drawing:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, this primary heater unit is one-body molded with rectangular parallelepiped preheating chamber 10 by broach hopper 7, cone-shaped cloth device 6, the integrated outer side wall of primary heater unit is welded by double-layer plate, be provided with thermal insulation layer between double-layer plate, thermal insulation layer can be with alumina silicate fiber felt or glass wool.
Wherein, preheating chamber 10 is a rectangular parallelepiped, the longitudinal interval many flues 4 of arranging in its inner chamber, and the horizontal turnover panel of multilayer up and down 3 that passes through for material that is equipped with side by side in the space between many flues of preheating chamber inner chamber 4, turnover panel 3 and flue are arranged in a crossed manner each other, flue 4 sidewalls of each turnover panel 3 and its both sides constitute a material preheating space, and a plurality of turnover panels and many flues constitute a plurality of material preheating spaces; Each turnover panel 3 is the base plate of this material preheating space, leaves the spacing distance of 10～20cm between the both wings 32 (referring to Fig. 2) of this turnover panel 3 and the flue sidewall of its both sides respectively.
The rectangle box body of flue 4 for being welded into by steel plate is divided into top board, base plate and four sidewalls; The length of flue 4 (top board is to the distance of base plate) is identical with the height of preheating chamber 10; Outermost two flue 4 outer walls are fixedlyed connected with preheating chamber 10 vertical inwalls, and the front and back walls of middle flue 4 is affixed with preheating chamber 10 forward and backward two ends inwalls respectively.
Be interval with a plurality of dividing plates 8 in the inner chamber of flue 4 from top to bottom, dividing plate 8 is the rectangle heat-resisting steel sheet and plate, and its width is identical with the cross-sectional width of flue 4, and length then is shorter than the cross-sectional length of flue 4; One end of adjacent two dividing plates 8 be welded on respectively in the opposite direction flue length to two sidewalls on; The unsettled setting of the other end of dividing plate 8, and form breach with pairing flue sidewall, by this breach end the flue 4 that is separated out by polylith dividing plate 8 is interconnected.
The gas approach 1 that is positioned at the preheating chamber lower end is welded on the outside of preheating chamber 10 1 sidewalls, and a side of gas approach 1 is provided with many flue gases to be in charge of, and every flue gas is in charge of with corresponding flue 4 bottoms and is communicated with; The exhanst gas outlet 5 that is positioned at the upper end of preheating chamber is welded on the outside of another sidewall of preheater, and a side of exhanst gas outlet 5 is provided with many flue gases to be in charge of, and every flue gas is in charge of with corresponding flue 4 tops and is communicated with; The gas approach 1 of every flue is independently with exhanst gas outlet 5 and is communicated with.High-temperature flue gas is entered by gas approach 1, is in charge of by flue gas to enter in the flue, and the breach of the dividing plate of establishing in the edge 8 is circuitous from the bottom to top to rise, and finally forms exhaust gases passes by exhanst gas outlet 5 discharges; The setting of dividing plate 8 can make flue gas range ability lengthening in flue.
Broach hopper 7 is used to introduce admixtion, and it is outlet connection cone-shaped cloth device 6 down.
The radial drapery panel 11 that is distributed with several by the wear-resisting steel plate making in the cone-shaped cloth device 6, drapery panel 11 is trapezoidal shape, and is up-narrow and down-wide, and there is radial fin on the surface; The length of drapery panel 11 lower rims is identical with the length of flue 4 top boards, upper limb is positioned at the below of broach hopper 7, the gradient of drapery panel 11 dual-sides is fixed by welding on the front and back walls of cone-shaped cloth device 6 inner chambers with identical with the gradient of its cone-shaped cloth device 6 front and back walls of joining; The number that the number of drapery panel 11 is installed than flue 4 is lacked 2, the lower rim of drapery panel 11 and flue 4 top boards a side are longitudinally fixedlyed connected, in order to prevent that glass batch is blocked in flue top and stockpiles on the flue top board when being fallen by hopper, the flue top board longitudinally another side vertical weld that makes progress be connected to a blocking material plate 9 that joins with drapery panel 6 inclined-planes.
Use said apparatus of the present invention to implement the preheating of glass batch, its working process is:
Treat that the glass batch of preheating is made of in proportion sandstone, feldspar, Wingdale, rhombspar, soda ash, saltcake and carbon dust, add sodium silicate binder after mixer mixes, be transported to granulation balling-up in the pan-pelletizer, pellet granularity scope is at 5～30mm, after dehydrating 120 ℃, be transported to by rotary conveyor in the broach hopper 7 of primary heater unit of special use of the present invention;
Fume from pure-oxygen combustion glass furnace carries out the air dilution through fast freezing air system and is cooled to below 900 ℃, gas approach 1 by this primary heater unit enters flue, rely on self draft to enter the dividing plate of last layer by the indentation, there of lower floor's dividing plate 8, breach through this layer dividing plate enters in the passage that the last layer dividing plate is separated out again again, successively circuitous by the breach of each dividing plate end opposite to rising, high-temperature flue gas is passed to flue 4 sidewalls by convection type with heat, flue sidewall is passed to glass batch in the flue 4 outer material preheating spaces in the thermal radiation mode again, and flue gas is discharged primary heater units by exhanst gas outlet 5 after the preheating; In the time of with smoke movement, glass batch after the granulation is scattered in it in each material preheating space through cone-shaped cloth device 6 by hopper 7, fall into earlier on each material preheating space the superiors turnover panel 3, this glass batch has been accepted the heat that flue 4 transmits, after the preheating 15～30 minutes, by the rotation of control rotating plate shaft 31, turnover panel turns over 90 ° for 3 times, glass batch is discharged to down on one deck turnover panel continues preheating; Turn over to lower floor's turnover panel again through the glass batch after following one deck turnover panel preheating; The turning operation of turnover panel can be controlled by the circuit program of setting-up time automatically by mechanical arm; By that analogy, glass batch was 15～30 minutes in the 3 last residence time of every turnover panel; Turnover panel is provided with 3～7 layers, after 3～7 layers of heat exchange, after making glass batch reach preheating temperature more than 400 ℃ to require, is turned over by undermost turnover panel and to fall into a feed bin, sends into next procedure.
Implementation result of the present invention:
With the 600t/d oxy-fuel combustion glass melting furnace is example, per hour produces 10484Nm
3Exhaust gas volumn, 1200 ℃ of flue-gas temperatures, earlier with flue gas dilution to 15000Nm
3, 900 ℃ of temperature are transported to gas approach again; The glass batch for the treatment of preheating is by sandstone 58%, feldspar 6%, Wingdale 0.7%, rhombspar 15%, soda ash 18%, after saltcake 2.2% and carbon dust 0.1% mix, in pan-pelletizer, carry out granulation, after being granulated into the pellet of 5mm～30mm scope, drop in the hopper, it is dispersed in the set preheating chamber in 5 material preheating spaces that constitute by the flue of the multilayer turnover panel of upper and lower settings and these multilayer turnover panel both sides through the cone-shaped cloth device again, high-temperature flue gas conducts heat with radiation mode to the pellet that is dispersed to the superiors' turnover panel through flue, this pellet is implemented indirect preheating, stopped on every layer of turnover panel 15～30 minutes, and turned over then to following one deck; After 1～2h preheating, can be with more than the batch preheating to 400 ℃.Be equivalent to per hour can utilize fume afterheat 1728000kcal/h, consider the power consumption of granulating of the batch and preheating newly added equipment,, can reduce glass melter hear rate about 10% through converting.
Claims (10)
1. the primary heater unit of a glass batch comprises hopper and connected preheating chamber, and described hopper is a broach hopper, it is characterized in that: described preheating chamber is a rectangular parallelepiped, also is provided with a cone-shaped cloth device between broach hopper and rectangular parallelepiped preheating chamber; Wherein,
The longitudinal interval many flues of arranging in the inner chamber of rectangular parallelepiped preheating chamber, and laterally be provided with the turnover panel of multilayer up and down that passes through for material in the space between many flues side by side, turnover panel and flue are arranged in a crossed manner each other, leave a spacing between the flue sidewall of each turnover panel and its both sides respectively.
2. primary heater unit according to claim 1 is characterized in that: described turnover panel is the tabular structure of rectangle, its long to medullary ray be provided with a major axis, both wings weld the bearing socket on the two ends of major axis and the described preheating chamber two opposite side walls with major axis.
3. primary heater unit according to claim 2 is characterized in that: described multiwalled rectangle turnover panel be arranged in parallel up and down, and spacing is 400-700mm between the rectangle turnover panel of adjacent two layers; The quantity of every layer of turnover panel setting is lacked 1 than the quantity that flue is provided with.
4. according to claim 1 or 2 or 3 described primary heater units, it is characterized in that: be interval with a plurality of dividing plates from top to bottom in the described flue inner chamber, dividing plate one end is fixed on the flue internal chamber wall, and the other end and flue sidewall have spacing and form breach, and the breach direction of adjacent two dividing plates is opposite.
5. primary heater unit according to claim 4 is characterized in that: be positioned at outermost two flue outer walls and fixedly connected with described preheating chamber longitudinal medial wall respectively; The two ends of middle flue are affixed with preheating chamber transverse ends inwall respectively.
6. primary heater unit according to claim 5 is characterized in that: gas approach is established in the preheating chamber lower end, and a side of gas approach is provided with many flue gases to be in charge of, and every flue gas is in charge of with a corresponding flue bottom and is communicated with; Exhanst gas outlet is established in the upper end of preheating chamber, and a side of exhanst gas outlet is provided with many flue gases to be in charge of, and every flue gas is in charge of with a corresponding flue top and is communicated with, and the gas approach of every flue is independently with exhanst gas outlet and is communicated with.
7. primary heater unit according to claim 6 is characterized in that: be provided with the drapery panel that polylith is trapezoidal shape in the described cone-shaped cloth device, be uniformly distributed in this cone-shaped cloth device; The hypotenuse of the described drapery panel left and right sides is affixed with two skew walls of described cone-shaped cloth device front and back ends respectively; The base of described drapery panel and with it side welding longitudinally of corresponding described flue top fixing, another side vertical weld that makes progress is connected to a blocking material plate that joins with described drapery panel inclined-plane longitudinally on described flue top.
8. primary heater unit according to claim 7 is characterized in that: the surface of described drapery panel is radial fin; Its material is a wear-resisting steel plate.
9. primary heater unit according to claim 8 is characterized in that: the sidewall of described broach hopper, cone-shaped cloth device and rectangular parallelepiped preheating chamber is double-layer plate and constitutes, and is provided with thermal insulation layer between double-layer plate.
10. the method for a preheating batch by using waste heat of fume from pure-oxygen combustion glass furnace, utilize the arbitrary described primary heater unit of claim 1-9, comprise the high-temperature flue gas of discharging, to implementing preheating procedure by the glass batch of plurality of raw materials mixed preparing with oxy-fuel combustion glass melting furnace; Concrete steps are as follows:
1) glass batch carries out granulation earlier before entering preheating procedure, and the granularity of pellet is 5～30mm;
2) high-temperature flue gas with oxy-fuel combustion glass melting furnace dilutes with air, and this high-temperature flue gas is cooled to below 900 ℃;
3) with the pellet of step 1) after dehydration, drying, send into the broach hopper of described primary heater unit; Simultaneously, with step 2) cooled high-temperature flue gas is delivered in the described primary heater unit by smoke inlet; Described high-temperature flue gas to described pellet conduction heat, is implemented indirect preheating to described pellet with radiation mode during by described primary heater unit, and the glass batch preheating temperature is sent into next procedure after reaching more than 400 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101672633A CN101830628B (en) | 2010-05-10 | 2010-05-10 | Method and device for preheating batch by using waste heat of fume from pure-oxygen combustion glass furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101672633A CN101830628B (en) | 2010-05-10 | 2010-05-10 | Method and device for preheating batch by using waste heat of fume from pure-oxygen combustion glass furnace |
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| CN101830628A true CN101830628A (en) | 2010-09-15 |
| CN101830628B CN101830628B (en) | 2011-09-07 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011140671A1 (en) * | 2010-05-10 | 2011-11-17 | 秦皇岛玻璃工业研究设计院 | Method and device for preheating glass batch using flue gas waste heat produced by oxy-fuel combustion glass melting furnace |
| CN102351401A (en) * | 2011-08-06 | 2012-02-15 | 蚌埠玻璃工业设计研究院 | Flue gas preheat apparatus for glass batch |
| CN102538494A (en) * | 2012-02-15 | 2012-07-04 | 个旧市富祥工贸有限责任公司 | Solid material heat exchange device for recycling waste heat of smoke |
| CN104086072A (en) * | 2014-07-24 | 2014-10-08 | 中国建材国际工程集团有限公司 | Energy-saving method of flue gas-emission glass melting furnace |
| CN112340986A (en) * | 2020-12-04 | 2021-02-09 | 信和光能(安徽)有限公司 | Glass kiln dust removal powder recovery unit |
| CN112857006A (en) * | 2021-01-13 | 2021-05-28 | 新疆元瑞圣湖能源有限公司 | Multi-section vertical internal-external heat coupling type material drying device and method |
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| EP0679144B1 (en) * | 1992-12-29 | 2000-03-15 | Praxair, Inc. | Method and apparatus for cullet preheating and pollution emission reduction in the glass manufacturing process |
| US5399181A (en) * | 1993-06-16 | 1995-03-21 | Beteiligungen Sorg Gmbh & Co. Kg | Method and apparatus for preheating charging material having organic contaminants for glass melting furnaces |
| CN101328005A (en) * | 2008-07-16 | 2008-12-24 | 中国建材国际工程有限公司 | Preheating method and apparatus for glass batch |
| CN201338983Y (en) * | 2008-11-13 | 2009-11-04 | 中国新型建筑材料工业杭州设计研究院 | Fume preheating equipment for glass batch pure oxygen combustion melting furnace |
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