CN108426458A - A kind of glass furnace fume bypass system for desulfuration and denitration - Google Patents
A kind of glass furnace fume bypass system for desulfuration and denitration Download PDFInfo
- Publication number
- CN108426458A CN108426458A CN201810415845.5A CN201810415845A CN108426458A CN 108426458 A CN108426458 A CN 108426458A CN 201810415845 A CN201810415845 A CN 201810415845A CN 108426458 A CN108426458 A CN 108426458A
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- CN
- China
- Prior art keywords
- flue
- flue gas
- down device
- gas cool
- glass furnace
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- 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
Abstract
This application involves a kind of glass furnace fumes to bypass system for desulfuration and denitration, including glass furnace, waste heat boiler, chimney, it is connected with waste heat boiler between the flue collector and chimney of glass furnace, desulfurizing tower, deduster and air-introduced machine, side door flue is connected on flue collector, it is connected with the first flue gas cool-down device on side door flue in turn, Benitration reactor, second flue gas cool-down device, the smoke inlet of flue and desulfurizing tower after the cooling of the second flue gas cool-down device connects, first flue gas cool-down device, the heat exchange air arrival end of second flue gas cool-down device is connected separately with the first pressure fan, second pressure fan, its heat exchange air outlet end is connected to connection with chimney by pipeline respectively.When glass furnace ad hoc inspection and repair, the reduction of the smoke pollution index of discharge is effectively reached into discharge standard and cost is low, flue-gas temperature effectively can be reduced to 340 DEG C or so to enter Benitration reactor by the first flue gas cool-down device, and the second flue gas cool-down device, which can reduce the flue-gas temperature after denitration once again, reaches 220 DEG C.
Description
Technical field
The present invention relates to a kind of glass furnace, especially a kind of glass furnace fume bypasses system for desulfuration and denitration.
Background technology
Well known, waste heat boiler of glass furnace improves the utilization ratio of flue gas, but the nitrogen oxides in flue gas can be to ring
Border adversely affects, so SCR methods is all used to carry out denitration process to flue gas at present, when denitration required flue-gas temperature one
As be 330~380 DEG C, waste heat boiler of glass furnace input gas temperature is between 400~600 DEG C, in order to meet out of stock needs
Flue-gas temperature newly designs waste heat boiler, is all to draw to remove out of stock flue gas after level-one evaporator, two level steaming is returned after out of stock
Before sending out device, go out of stock flue-gas temperature higher, it is bigger to the loss of waste heat boiler；In glass furnace operational process, when having surplus heat
When boiler breaks down when needing ad hoc inspection and repair, kiln gas needs to discharge after carrying out fume treatment, if flue gas without processing,
Environment will be caused and big pollution, the spare waste heat boiler of traditional glass furnace fume bypath system, spare waste heat pot
The cost of investment of stove is high, and the operation of spare waste heat boiler is understable, if the time is long, may cause blowing out again；It is another normal
The traditional pipe heat exchanger of glass furnace fume bypath system, the investment of traditional pipe heat exchanger is big, takes up a large area,
Weight is big, and it is mobile inconvenient to transport, and the carbon steel pipe of use, heat transfer coefficient is small, easy fouling, perishable, and cleaning repair is inconvenient, makes
Use short life.There are problems for Conventional cryogenic cigarette cooler structure：1, corrode：Smoke temperature is down to 90 DEG C hereinafter, being less than acid dew point；2, product
Ash：Dust is adsorbed after acid moisture condensation, is blocked serious；3, pressure drop：Fan capacity is limited, drag effects operation；4, installation space：Volume
It is huge, performance difficulty.Invest cost performance：Investment is big.
Invention content
The purpose of the present invention is exactly to provide a kind of glass furnace fume bypass to solve the shortcoming in background technology
System for desulfuration and denitration.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：A kind of glass furnace fume bypass desulphurization denitration system
System, including glass furnace, waste heat boiler, chimney, are connected between the flue collector and chimney of glass furnace and are connected with waste heat boiler, desulfurization
Tower, deduster and air-introduced machine are connected with side door flue on flue collector, are sequentially communicated on side door flue and are connected with the first flue gas
Cooler, Benitration reactor, the second flue gas cool-down device, the smoke inlet of flue and desulfurizing tower after the cooling of the second flue gas cool-down device
Connection connection, the first flue gas cool-down device, the second flue gas cool-down device heat exchange air arrival end be respectively communicated with and be connected with first and give
Wind turbine, the second pressure fan, heat exchange air outlet end are connected to connection with chimney by pipeline respectively.
For a kind of optimization of the invention, it is respectively equipped on the flue of waste heat boiler and takes smoke pipeline and smoke-returning pipeline, take cigarette
Connection connection Benitration reactor between pipeline and smoke-returning pipeline.
A kind of optimization for the present invention, the first flue gas cool-down device, the second flue gas cool-down device include heat-exchanger rig, described
Heat-exchanger rig is all made of the wide-runner plate heat exchanger of thin-wall stainless steel.
Compared with the background technology, the present invention, have it is reasonable for structure, it is easy to make；When glass furnace ad hoc inspection and repair, flue gas warp
It is discharged again after the processing of side door flue, small, light-weight, operation is fast and effective, and cost is low, and the service life is longer, cigarette
The cleaning of gas cooler is easy to maintenance, and greatly improves heat transfer coefficient；Effectively the reduction of the smoke pollution index of discharge is reached
Discharge standard and cost is low, the first flue gas cool-down device can effectively by flue-gas temperature be reduced to 340 DEG C or so enter it is de-
Nitre reactor, the second flue gas cool-down device, which can reduce the flue-gas temperature after denitration once again, reaches 220 DEG C, and operation is simple, fast
Speed, effective, combined use wide-runner plate heat exchanger longer life expectancy.
Description of the drawings
Fig. 1 is the principle schematic of glass furnace fume bypass system for desulfuration and denitration.
Fig. 2 is that glass furnace fume bypass system for desulfuration and denitration overlooks principle schematic.
Specific implementation mode
Embodiment 1：Referring to Fig.1 with 2.A kind of glass furnace fume bypass system for desulfuration and denitration, including glass furnace 1, waste heat
Boiler 2, chimney 3, be connected between the flue collector 11 and chimney 3 of glass furnace 1 be connected with waste heat boiler 2, desulfurizing tower 4, deduster 5 and
Air-introduced machine 6 is connected with side door flue 12 on flue collector 11, is sequentially communicated on side door flue 12 and is connected with the first flue gas cool-down
Device 7, Benitration reactor 8, the second flue gas cool-down device 9, flue and desulfurizing tower 4 after the cooling of the second flue gas cool-down device 9 into cigarette
Mouthful connection connection, the first flue gas cool-down device 7, the second flue gas cool-down device 9 heat exchange air arrival end be respectively communicated with and be connected with the
One pressure fan 71, the second pressure fan 91, heat exchange air outlet end are connected to connection by pipeline with chimney 3 respectively.Waste heat pot
It is respectively equipped on the flue of stove 2 and takes smoke pipeline 21 and smoke-returning pipeline 22, taken and be connected to connection between smoke pipeline 21 and smoke-returning pipeline 22
Benitration reactor 8.
By the connection setting side door flue 12 on the flue collector 11 that glass furnace comes out, when blowing out, flue gas according to
It is secondary to pass through the first flue gas cool-down device 7, Benitration reactor 8, the second flue gas cool-down device 9, desulfurizing tower 4, deduster 5, air-introduced machine 6 to cigarette
Chimney 3, the first pressure fan 71, the second pressure fan 91 are blown toward the first flue gas cool-down device 7, the second flue gas cool-down device 9, pass through the first cigarette
Gas cooler 7, the merging of the second flue gas cool-down device 9 lead to chimney 3.The program in order to make flue gas reach the temperature of denitration and desulfurization,
It is provided with the first flue gas cool-down device 7 before Benitration reactor 8, the second flue gas cool-down device 9 is provided with before desulfurizing tower 4.
First flue gas cool-down device 7, the second flue gas cool-down device 9 include heat-exchanger rig, and the heat-exchanger rig is all made of thin-walled
The wide-runner plate heat exchanger of stainless steel.There is stainless steel stronger corrosion-resistant, the non-sticky property in good surface, wider temperature to make
With range and it is anti-oxidant the advantages that, therefore had the characteristics that on the flue gas cool-down device of wide-runner plate heat exchanger：
A) good corrosion resistance, due to containing chromium content (22%), molybdenum (3%) and nitrogen content in stainless steel material
(0.18%), anticorrosion properties of the material relative to other carbon steel materials are improved, the two-phase microstructure of stainless steel helps
In the stress corrosion resistant crack resistance for improving stainless steel, the high intensity and resistance to corrosion of stainless steel material make it have very high
Corrosion fatigue resistant intensity；
B) superior deashing function, due to plate pipe be the forming of hydraulic pressure tympanites, plate smooth outer surface, without dead angle, have from
Deashing ability, in addition under medium mechanical shock and thermal shock, plate face will produce micro-strain, can make schmutzband that brittleness stripping occur
It falls, since heat exchanger plates pipe surface and inner wall are all very smooth and have enough intervals each other, the outer flue dust of plate pipe is not easy to bond,
It accumulates, medium has quiet turbulent flow in plate pipe, in the more difficult fouling of heat-transfer surface, can greatly reduce maintenance and the cleaning time of equipment
Number ensure that it long-term safety can run under metastable heat transfer coefficient；
C) excellent wear resistance and good heat-exchange performance, plate pipe heat exchange element itself have excellent wear resistance, and
And the flue gas flow rate of low abrasion, lower resistance is chosen when band-tube type flue gas waste heat recovery design of heat exchanger, to reduce heat exchanging
The abrasion of device element.Band-tube type heat exchanger is expanded into shape using thin-walled plate elder generation low stress point postwelding high pressure drum, and wall thickness~
1mm, so overcoming the relatively low disadvantage of stainless steel material thermal coefficient, heat exchange property is good；
D) excellent inoxidizability, stainless steel has higher flexible fatigue strength, and is free of photosensitizing effect, has excellent
Resistance to weathering, aging period at 10 years or more, therefore its processing plate tubing it is durable, service life is long.It is answered low
In the case that power Laser Welding bonding strength ensures, stress cracking will not occur for plate heat exchange tube in operation, no disclosure risk, substantially
It can accomplish non-maintaining；
E) temperature in use of good heat resisting and pressure resisting and lower resistance, stainless steel material is 760 DEG C, and the plate pipe of processing can
It is well run under 700 DEG C of various operating modes below of flue-gas temperature.Plate pipe heat exchange element surface itself is smooth, and friction coefficient is small,
It is small to the resistance of flue gas；Also resistance of the heat exchanger to flue gas itself itself has been fully considered when flue gas waste heat recovery design of heat exchanger
Power, makes hollow out among plate pipe, and all there are corresponding spacing between multi-group heat exchanger, right to reduce the resistance to flue gas itself
Upstream and downstream equipment does not also influence significantly；
F) superior transport and install convenient, due to using thin-wall boards, the more traditional pipe of the heat exchanger of identical operating mode
Formula heat exchanger is light-weight very much, to be conducive to transport and in-site installation.
It is to be understood that：Although the present embodiment contrasts detailed description to the present invention, these explanations, only
It is the simple declaration to the present invention, rather than limiting the invention, any invention wound without departing from true spirit
It makes, each falls in protection scope of the present invention.
Claims (3)
1. a kind of glass furnace fume bypasses system for desulfuration and denitration, it is characterised in that including glass furnace (1), waste heat boiler (2), cigarette
Chimney (3) is connected between the flue collector (11) and chimney (3) of glass furnace (1) and is connected with waste heat boiler (2), desulfurizing tower (4), dedusting
Device (5) and air-introduced machine (6), are connected with side door flue (12) on flue collector (11), the company of being sequentially communicated on side door flue (12)
It is connected to the first flue gas cool-down device (7), Benitration reactor (8), the second flue gas cool-down device (9), is cooled down through the second flue gas cool-down device (9)
Flue afterwards is connected to connection, the heat friendship of the first flue gas cool-down device (7), the second flue gas cool-down device (9) with the smoke inlet of desulfurizing tower (4)
The arrival end that ventilates, which is respectively communicated with, is connected with the first pressure fan (71), the second pressure fan (91), heat exchange air outlet end point
Connection is not connected to chimney (3) by pipeline.
2. glass furnace fume according to claim 1 bypasses system for desulfuration and denitration, it is characterized in that：Waste heat boiler (2)
It is respectively equipped on flue and takes smoke pipeline (21) and smoke-returning pipeline (22), take the company of connection between smoke pipeline (21) and smoke-returning pipeline (22)
Connect Benitration reactor (8).
3. glass furnace fume according to claim 1 bypasses system for desulfuration and denitration, it is characterized in that：First flue gas cool-down device
(7), the second flue gas cool-down device (9) includes heat-exchanger rig, and the heat-exchanger rig is all made of the wide-runner plate formula of thin-wall stainless steel
Heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415845.5A CN108426458A (en) | 2018-05-03 | 2018-05-03 | A kind of glass furnace fume bypass system for desulfuration and denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415845.5A CN108426458A (en) | 2018-05-03 | 2018-05-03 | A kind of glass furnace fume bypass system for desulfuration and denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108426458A true CN108426458A (en) | 2018-08-21 |
Family
ID=63162321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810415845.5A Withdrawn CN108426458A (en) | 2018-05-03 | 2018-05-03 | A kind of glass furnace fume bypass system for desulfuration and denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108426458A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443017A (en) * | 2018-09-30 | 2019-03-08 | 株洲醴陵旗滨玻璃有限公司 | Smoke processing system and its operation method |
| CN112902682A (en) * | 2021-02-23 | 2021-06-04 | 深圳市凯盛科技工程有限公司 | High temperature kiln flue gas waste heat recovery system |
| CN113446865A (en) * | 2021-06-15 | 2021-09-28 | 台玻咸阳玻璃有限公司 | Ceramic catalyst desulfurization, denitrification and dust removal integrated process |
-
2018
- 2018-05-03 CN CN201810415845.5A patent/CN108426458A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443017A (en) * | 2018-09-30 | 2019-03-08 | 株洲醴陵旗滨玻璃有限公司 | Smoke processing system and its operation method |
| CN109443017B (en) * | 2018-09-30 | 2024-04-09 | 株洲醴陵旗滨玻璃有限公司 | Flue gas treatment system and operation method thereof |
| CN112902682A (en) * | 2021-02-23 | 2021-06-04 | 深圳市凯盛科技工程有限公司 | High temperature kiln flue gas waste heat recovery system |
| CN113446865A (en) * | 2021-06-15 | 2021-09-28 | 台玻咸阳玻璃有限公司 | Ceramic catalyst desulfurization, denitrification and dust removal integrated process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180821 |