CN204854374U - Cooling of glass kiln flue gas and waste heat recovery apparatus - Google Patents
Cooling of glass kiln flue gas and waste heat recovery apparatus Download PDFInfo
- Publication number
- CN204854374U CN204854374U CN201520522120.8U CN201520522120U CN204854374U CN 204854374 U CN204854374 U CN 204854374U CN 201520522120 U CN201520522120 U CN 201520522120U CN 204854374 U CN204854374 U CN 204854374U
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- flue
- waste heat
- exchange apparatus
- heat recovery
- steam
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a cooling of glass kiln flue gas and waste heat recovery apparatus, including the flue, the flue be the vertical structure of falling the U -shaped, and the bottom of flue one side is provided with flue gas inlet, and the bottom of opposite side is provided with the exhanst gas outlet, and the bottom surface of flue gas inlet and exhanst gas outlet is the grey mouth of the row of being provided with all, the ascent stage of flue sets up to cavity channel, and the descending branch is provided with indirect heating equipment, and the top of flue is provided with steam pocket and thermal de aeration equipment, the one end of thermal de aeration equipment is passed through the feed pipe and is linked to each other with the soft water pipe network, and the other end passes through the outlet pipe and links to each other with the steam pocket, and indirect heating equipment is provided with downtake and fairlead, and downtake and fairlead link to each other with the steam pocket respectively, and the steam that produces in the steam pocket passes through main steam pipe and links to each other with the steam pipe network. The utility model provides an inside oxygen corrosion of equipment pressure -bearing component serious, the indirect heating equipment heat transfer surface easily weares and teares and the serious scheduling problem of indirect heating equipment heat transfer area ash.
Description
Technical field
The utility model relates to the cooling of a kind of flue gas and waste heat recovery apparatus, relates more specifically to the cooling of a kind of glass furnace fume and waste heat recovery apparatus.
Background technology
Along with country is day by day strict to the requirement of Air Pollution Control, the pollutant kind of limiting emission is also progressively increasing, and the control emission of nitrogen oxide requires repeatedly clear and definite and enforces.According to production scale and the fuel service condition of current glass industry, temperature about 1600 DEG C in glass melter, flue collector smog discharge temperature is distributed in 400 DEG C ~ 520 DEG C, the nitrogen oxide (NO in flue gas
x) need to carry out environment protection treating, be called denitrating flue gas.Selective catalytic reduction is that glass furnace fume commonly uses denitrating technique.
Selective catalytic reduction (SelectiveCatalyticReduction is called for short SCR); The technique that selective catalytic reduction (SCR) can be divided into high temperature, middle temperature, low temperature three kinds different.The Applicable temperature that high temperature SCR generally refers to catalyst 450 DEG C ~ 600 DEG C and more than, Medium temperature SCR refers to that the Applicable temperature of catalyst is at 280 DEG C ~ 420 DEG C, and low-temperature SCR refers to that the Applicable temperature of catalyst is at 120 DEG C ~ 300 DEG C.The fundamental reaction equation of SCR technique is as follows:
4NH
3+4NO+O
2=4N
2+6H
2O（1）
8NH
3+6NO
2=7N
2+12H
2O（2）
4NH
3+2NO
2+O
2=3N
2+6H
2O（3）
Under catalyst action, in flue gas, spray into ammonia, by NO
xbe reduced into N
2and H
2o.
The out of stock system of Medium temperature SCR selective catalytic reduction, at the nitrogen oxide (NO of glass industry
x) should be the most extensive in environment protection treating, in practice, economic smoke gas treatment temperature is 320 DEG C ~ 350 DEG C.Therefore glass melter flue collector discharge flue gas need first be lowered the temperature, and then carries out out of stock environment protection treating.
At present, glass furnace fume cooling and waste heat recovery apparatus are made up of the parts such as heat-exchange apparatus, drum usually, and described equipment is generally vertical shaft type structure, in actual moving process, there are following several respects not enough:
1. waste heat recovery apparatus pressure restraining element Internal Oxidative Corrosion is serious, causes the thickness of pressure restraining element improper thinning, greatly reduces service life of equipment;
2. waste heat recovery apparatus heat-transfer area serious wear, causes the improper stoppage in transit of equipment;
3. waste heat recovery apparatus heat-transfer area dust stratification is serious, reduces system waste heat organic efficiency.
Utility model content
The purpose of the present utility model is to provide the cooling of a kind of glass furnace fume and waste heat recovery apparatus, the cooling of this glass furnace fume and waste heat recovery apparatus, solve the oxygen corrosion of pressure of equipment element internal serious, the problems such as the easy to wear and heat-exchange apparatus heat-transfer area dust stratification of heat-exchange apparatus heat-transfer area is serious.
In order to realize foregoing invention object, a kind of glass furnace fume cooling of the present utility model and waste heat recovery apparatus, comprise flue, flue is vertical inverted U-shaped, the bottom of flue side is provided with gas approach, the bottom of opposite side is provided with exhanst gas outlet, and the bottom surface of gas approach and exhanst gas outlet is provided with ash discharging hole; The ascent stage of flue is set to cavity passage, and descending branch is provided with heat-exchange apparatus, and the top of flue is provided with drum and thermal de-aeration equipment; One end of thermal de-aeration equipment is connected with soft water pipe network by feed pipe, the other end is connected with drum by outlet pipe, heat-exchange apparatus is provided with down-comer and fairlead, and down-comer and fairlead are connected with drum respectively, and the steam produced in drum is connected with steam pipe system by main steam pipe.
Described heat-exchange apparatus comprises heating surface bank, and heating surface bank is equipped with import and export header and forms coiled pipe group, and described coiled pipe group is vertically suspended in heat-exchange apparatus.
Described heat-exchange apparatus heating surface bank double wrap is along row spread configuration.
The heating surface bank top of described heat-exchange apparatus is provided with compressed air shock wave soot blower, and bottom is provided with gas impulse shock wave soot blower.
The cooling of this glass furnace fume and waste heat recovery apparatus is adopted to have following advantage:
1. above the flue of equipment, be provided with thermal de-aeration equipment, soft water is sent into waste heat recovery apparatus again and is carried out heat exchange after the deoxidation of thermal de-aeration equipment, effectively prevent the generation of oxygen corrosion, substantially increase service life of equipment, improve the capital investment efficiency of enterprise.
2. the flue of equipment is vertical inverted U-shaped structural configuration, and the ascent stage of flue is set to cavity passage, and before described cavity flue is arranged at heat-exchange apparatus, flue gas, after cavity passage redistribution aerodynamic field and depositing dust, enters heat-exchange apparatus uniformly; Reduce dust in flue gas to the wearing and tearing of heat-exchange apparatus heat-transfer area, greatly extension device service life, reduce equipment O&M cost.
3. heat-exchange apparatus heating surface bank top is provided with compressed air shock wave soot blower, bottom is provided with gas impulse shock wave soot blower, soot blower is opened according to the setting frequency in running, the dust be attached on heat-transfer area comes off from heat-transfer area after shock wave purges, substantially improve heat-transfer effect, significantly improve equipment waste heat recovery efficiency.
Accompanying drawing explanation
Fig. 1 is the layout of equipment of the present utility model;
Fig. 2 is that a left side of Fig. 1 is depending on (cutting open) figure;
Fig. 3 is heat-exchange apparatus structure of the present utility model;
In figure: 1. flue, 2. ascent stage flue, 3. descending branch section flue, 4. gas approach, 5. exhanst gas outlet, 6. ash discharging hole, 7. drum, 8. thermal de-aeration equipment, 9. feed pipe, 10. outlet pipe, 11. down-comers, 12. fairleads, 13. heat-exchange apparatus, 14. main steam pipes, 15. coiled pipe groups, 16. import headers, 17. heating surface banks, 18. outlet headers, 19. compressed air shock wave soot blowers, 20. gas impulse shock wave soot blowers.
Detailed description of the invention
Accompanying drawing discloses the structural representation of preferred embodiment involved by the utility model without limitation; The technical solution of the utility model is explained below with reference to accompanying drawing.
As shown in Figure 1, Figure 2 and Figure 3, this glass furnace fume cooling and waste heat recovery apparatus, comprise flue 1, flue is vertical inverted U-shaped, the bottom of flue side is provided with gas approach 4, the bottom of opposite side is provided with exhanst gas outlet 5, and the bottom surface of gas approach 4 and exhanst gas outlet 5 is provided with ash discharging hole 6; The ascent stage 2 of flue is set to cavity passage, and descending branch 3 is provided with heat-exchange apparatus 13, and the top of flue is provided with drum 7 and thermal de-aeration equipment 8; One end of thermal de-aeration equipment 8 is connected with soft water pipe network by feed pipe 9, the other end is connected with drum 7 by outlet pipe 10, heat-exchange apparatus 13 is provided with down-comer 11 and fairlead 12, down-comer 11 and fairlead 12 are connected with drum 7 respectively, and the steam produced in drum 7 is connected with steam pipe system by main steam pipe 14.
Described flue 1 is vertical inverted U-shaped.
The ascent stage 2 of described flue is set to cavity passage.
The bottom surface of described gas approach 4 and exhanst gas outlet 5 is provided with ash discharging hole 6.
The top of described flue 1 is provided with thermal de-aeration equipment 8.
Described heat-exchange apparatus 13 comprises heating surface bank 17, and heating surface bank is equipped with import header 16, outlet header 18 forms coiled pipe group 15, and described coiled pipe group 15 is vertically suspended in heat-exchange apparatus 13.
Described heat-exchange apparatus 13 heating surface bank 17 double wrap is along row spread configuration.
Described heat-exchange apparatus 13 heating surface bank 17 top is provided with compressed air shock wave soot blower 19, and bottom is provided with gas impulse shock wave soot blower 20.
Flue gas enters from gas approach 4, after ascent stage 2 cavity passage redistribution aerodynamic field and depositing dust, enters the heat-exchange apparatus 13 in descending branch 3 uniformly, finally discharges from exhanst gas outlet 5.Carbonated drink flow process: the self-supporting water pipe 9 of soft water enters thermal de-aeration equipment 8, soft water sends into drum 7 by outlet pipe 10 after thermal de-aeration equipment 8 deoxygenation, the steam water interface that coiled pipe group 15 produces forms steam/water circulating loop by fairlead 12 and down-comer 11 with drum 7, and the saturated vapor in drum 7 is sent to steam pipe system by main steam pipe 14.Equipment adopts vertical inverted U-shaped structural configuration, and after the ascent stage 2 that flue gas flows through flue and descending branch 3, the dust in flue gas falls into ash discharging hole 6 and discharges.
The preferred specific embodiment of the utility model described by reference to the accompanying drawings is above only for illustration of embodiment of the present utility model; instead of as the restriction to aforementioned utility model object and claims content and scope; every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong to the utility model technology and rights protection category.
Claims (4)
1. a glass furnace fume cooling and waste heat recovery apparatus, comprise flue, flue is vertical inverted U-shaped, and the bottom of flue side is provided with gas approach, the bottom of opposite side is provided with exhanst gas outlet, and the bottom surface of gas approach and exhanst gas outlet is provided with ash discharging hole; The ascent stage of flue is set to cavity passage, and descending branch is provided with heat-exchange apparatus, and the top of flue is provided with drum and thermal de-aeration equipment; One end of thermal de-aeration equipment is connected with soft water pipe network by feed pipe, the other end is connected with drum by outlet pipe, heat-exchange apparatus is provided with down-comer and fairlead, and down-comer and fairlead are connected with drum respectively, and the steam produced in drum is connected with steam pipe system by main steam pipe.
2. glass furnace fume cools and waste heat recovery apparatus according to claim 1, it is characterized in that: described heat-exchange apparatus comprises heating surface bank, heating surface bank is equipped with import and export header and forms coiled pipe group, and described coiled pipe group is vertically suspended in heat-exchange apparatus.
3. glass furnace fume cools and waste heat recovery apparatus according to claim 2, it is characterized in that: described heat-exchange apparatus heating surface bank double wrap is along row spread configuration.
4. glass furnace fume cools and waste heat recovery apparatus according to claim 2, it is characterized in that: the heating surface bank top of described heat-exchange apparatus is provided with compressed air shock wave soot blower, and bottom is provided with gas impulse shock wave soot blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522120.8U CN204854374U (en) | 2015-07-17 | 2015-07-17 | Cooling of glass kiln flue gas and waste heat recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522120.8U CN204854374U (en) | 2015-07-17 | 2015-07-17 | Cooling of glass kiln flue gas and waste heat recovery apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204854374U true CN204854374U (en) | 2015-12-09 |
Family
ID=54744914
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520522120.8U Active CN204854374U (en) | 2015-07-17 | 2015-07-17 | Cooling of glass kiln flue gas and waste heat recovery apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN204854374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052426A (en) * | 2016-07-26 | 2016-10-26 | 云南汇能科技有限公司 | Yellow phosphorus tail gas afterheat utilization device |
| CN113336424A (en) * | 2021-07-02 | 2021-09-03 | 潜江菲利华石英玻璃材料有限公司 | Quartz glass's combustor automatic water supply device |
-
2015
- 2015-07-17 CN CN201520522120.8U patent/CN204854374U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052426A (en) * | 2016-07-26 | 2016-10-26 | 云南汇能科技有限公司 | Yellow phosphorus tail gas afterheat utilization device |
| CN106052426B (en) * | 2016-07-26 | 2018-02-06 | 云南汇能科技有限公司 | A kind of yellow phosphoric tail gas residual heat using device |
| CN113336424A (en) * | 2021-07-02 | 2021-09-03 | 潜江菲利华石英玻璃材料有限公司 | Quartz glass's combustor automatic water supply device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |