CN107345768A - A kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system and application method - Google Patents
A kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system and application method Download PDFInfo
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- CN107345768A CN107345768A CN201610295282.1A CN201610295282A CN107345768A CN 107345768 A CN107345768 A CN 107345768A CN 201610295282 A CN201610295282 A CN 201610295282A CN 107345768 A CN107345768 A CN 107345768A
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- 238000001816 cooling Methods 0.000 title claims abstract description 70
- 238000003837 high-temperature calcination Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 173
- 239000000498 cooling water Substances 0.000 claims abstract description 65
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 239000011329 calcined coke Substances 0.000 claims abstract description 14
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 13
- 230000008016 vaporization Effects 0.000 claims abstract description 11
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 5
- 230000003134 recirculating effect Effects 0.000 claims abstract description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 8
- 239000010865 sewage Substances 0.000 claims description 8
- 238000010612 desalination reaction Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003610 charcoal Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001354 calcination Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/04—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
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- 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
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to cooling and afterheat utilizing system and the application method of a kind of cooling of calcined coke and afterheat utilizing system, more particularly to a kind of charcoal element pot type burner high-temperature calcination Jiao.Pot type burner water collar includes upper water sleeve and lower water jacket, upper water sleeve is exchanged heat using Vaporizing cooling mode with high-temperature calcination Jiao, and steam-water separation is carried out by drum and produces saturated vapor, the superheater of caused saturated vapor access breaching, required superheated steam is provided to downstream user；By the way of cooling water indirect heat exchange, high-temperature calcination Jiao after upper water sleeve is cooled down further is cooled to dump temperature and enters pot type burner discharge system lower water jacket.Advantageous effect：The burnt most of heat recovery of high-temperature calcination can be formed low-temp low-pressure superheated steam；Greatly reduce pot type burner calcined coke cooling system water consumption；When drum and vapour system go wrong, itself and upper water sleeve can be separated, by the recirculating cooling water system moisturizing of lower water jacket, ensure the cooling effect of upper water sleeve, substantially increase the safety and reliability of system.
Description
Technical field
The present invention relates to cooling and afterheat utilizing system and the application method of a kind of cooling of calcined coke and afterheat utilizing system, more particularly to a kind of charcoal element pot type burner high-temperature calcination Jiao.
Background technology
Control of the raising and prebaked anode manufacturing enterprise required with the deterioration of prebaked anode raw materials for production quality, electrolysis industry for quality of anode for cost, advantage of the pot type burner in terms of calcined coke quality and casting yield emerges from, so that most of enterprise carries out the calcining of petroleum coke using pot type burner, the whole nation reaches annual output more than 7,000,000 tons using the calcined coke of pot type burner production at present.Simultaneously in order to reduce production cost, the earning rate of enterprise is improved, increasing enterprise starts to pay attention to the utilization of pot type burner waste heat.Pot type burner UTILIZATION OF VESIDUAL HEAT IN mainly includes following two parts：
（1）Entrained heat in pot type burner high-temperature flue gas.For pot type burner flue-gas temperature typically at 900 ~ 1000 DEG C or so, the partial heat accounts for the 60% ~ 70% of pot type burner heat expenditure, is converted into calcined coke per ton in 5.0 ~ 6.0GJ or so；
（2）Pot type burner high-temperature calcination Jiao takes away heat.For the burnt temperature into before cooling jacket of pot type burner high-temperature calcination typically at 1000 ~ 1100 DEG C or so, the partial heat accounts for the 20% ~ 25% of pot type burner heat expenditure, is converted into calcined coke per ton in 1.5 ~ 2.0GJ or so.
Pot type burner high-temperature flue gas residual-heat utilization technology is highly developed at this stage, and high-temperature calcination Jiao does not carry out waste heat recovery to the partial heat, mainly pass through the water collar of pot type burner, use the method for recirculated cooling water and high-temperature calcination Jiao's indirect heat transfer, high-temperature calcination Jiao is cooled to 50 DEG C ~ 100 DEG C or so, following two problems are primarily present using this method cooling down high-temperature calcined coke：
（1）Heat entrained by substantial amounts of high-temperature calcination Jiao is caused to waste completely；
（2）The substantial amounts of recirculated cooling water of high-temperature calcination Jiao's cooling required, the recirculated water of 40 tons or so of calcined coke about per ton, recirculated water consume nearly 1% or so in cooling procedure, cause the consumption of substantial amounts of cooling water every year.
The content of the invention
The present invention is for a kind of burnt cooling of the pot type burner high-temperature calcination for solving the above problems and proposing and afterheat utilizing system and application method, purpose is to make full use of heat entrained in high-temperature calcination Jiao, produce low-temp low-pressure superheated steam, to realize the recycling of waste heat, while high-temperature calcination Jiao is cooled to temperature needed for discharge.
A kind of burnt cooling of pot type burner high-temperature calcination of the invention and afterheat utilizing system for the above-mentioned purpose, pot type burner water collar includes upper water sleeve and lower water jacket, upper water sleeve is exchanged heat using Vaporizing cooling mode with high-temperature calcination Jiao, and steam-water separation is carried out by drum and produces saturated vapor, the superheater of caused saturated vapor access breaching, required superheated steam is provided to downstream user；By the way of cooling water indirect heat exchange, high-temperature calcination Jiao after upper water sleeve is cooled down further is cooled to dump temperature and enters pot type burner discharge system lower water jacket.
Upper water sleeve is composed in parallel by heat exchanger tube, heat exchanger tube uses to be affixed in steel plate inner sleeve in welding manner, upper water sleeve is set to form sleeve heat exchange structure, sleeve inner be high-temperature calcination Jiao's circulation passage, and the heat exchanger tube in sleeve is the circulation passage of high temperature circulation water and steam water interface.
Described upper water sleeve and lower water jacket make the material circulation area of lower water jacket identical by the way of straight tube.
Described upper water sleeve bottom sets the import of high temperature circulation water, connects down-comer concetrated pipe, and top sets the outlet of steam water interface, connects riser leg.
The high temperature steam water interface of the riser leg of upper water sleeve accesses tedge house steward by tedge concetrated pipe and enters drum, and high temperature circulation water is by down-comer house steward and through the import of down-comer concetrated pipe point to the high temperature circulation water of each upper water sleeve.
High temperature circulation water in upper water sleeve forms Natural Circulation by being arranged on height official post system existing for the drum of a high position.
Upper water sleeve bottom sets sewage draining exit.
Drum is provided with fresh desalination deaerated water and adds pipe, and for controlling and adjusting the pressure gauge and safety valve of the stress level in drum, the Stress control in drum is in 0.8 ~ 1.2MPa；It is provided with simultaneously in bottom to arranging mouth outside steam drum sewage.
Lower water jacket bottom sets circulating cooling water inlet, connects recirculated cooling water upper hose, and top sets circulating cooling water out, connects cooling water return pipe.
Recirculated cooling water after lower water jacket cooling water return pipe will heat up accesses Air cooler, circulating cooling pond is returned to after cooling, and recycled by circulating cooling water-circulating pump；Circulating cooling pond sets fresh demi-water filler pipe.
Stop valve is set on tedge house steward and down-comer house steward.
Connecting line between recirculated cooling water upper hose and down-comer house steward is provided with cooling water water inlet switching valve, and the connecting line between cooling water return pipe and tedge house steward is provided with cooling water backwater switching valve.
A kind of burnt cooling of pot type burner high-temperature calcination and the application method of afterheat utilizing system, high-temperature calcination Jiao enters from upper water sleeve, in upper water sleeve, the burnt heat exchanger tube high temperature recirculated water with upper water sleeve of high-temperature calcination is exchanged heat by Vaporizing cooling mode, and form steam water interface and enter riser leg, the riser leg of the upper water sleeve of other tank bodies enters tedge house steward after tedge concetrated pipe collects and accesses drum, and steam water interface carries out steam-water separation through drum；After separation saturated vapor access be arranged on pot type burner main chimney flue exhaust opening superheater heated after form superheated steam, to be supplied to downstream user, high-temperature water after separation enters down-comer concetrated pipe with drum moisturizing through down-comer house steward, and point extremely each upper water sleeve carries out cycle heat exchange；The water inlet of lower water jacket connects the recirculated cooling water upper hose in circulating cooling pond, and delivery port connects the cooling water return pipe in circulating cooling pond, and the cooling water after heat exchange enters recirculated cooling water pond after being cooled by Air cooler and recycled；When drum or steam superheating system failure must be out of service, close rising main and decline the stop valve of house steward, upper water sleeve is set to be cut off with the drum circulatory system, and cooling water water inlet switching valve and cooling water backwater switching valve are opened, make the water inlet of upper water sleeve and the recirculating cooling water system in backwater access circulating cooling pond.
Saturated-steam temperature after separation is at 170 DEG C ~ 190 DEG C.
By the Vaporizing cooling of the high temperature circulation water of upper water sleeve, high-temperature calcination Jiao is cooled to 200 ~ 300 DEG C from 1000 ~ 1100 DEG C.
Calcined coke after being cooled down by lower water jacket is cooled to 60 DEG C ~ 80 DEG C.
Advantages of the present invention effect：The burnt heat reclaimed with upper water sleeve high temperature circulation water by way of Vaporizing cooling entrained by it of high-temperature calcination, forms low-pressure saturated steam, fully reclaims its waste heat；Superheated steam is formed by being arranged on the superheater of breaching by low-pressure saturated steam caused by drum, steam quality is improved, is provided safeguard for follow-up steam using form；Pot type burner water collar is divided into two water jackets up and down, the burnt most of heat of high-temperature calcination forms steam by upper water sleeve, lower water jacket need to only use a small amount of cooling water that calcined coke can be just cooled to temperature needed for discharge, greatly reduce pot type burner calcined coke cooling system water consumption；When drum and vapour system go wrong, itself and upper water sleeve can be separated, by the recirculating cooling water system moisturizing of lower water jacket, ensure the cooling effect of upper water sleeve, substantially increase the safety and reliability of system.
Brief description of the drawings
Fig. 1 is flow chart of the present invention.
In figure：1st, upper water sleeve；2nd, lower water jacket；3rd, riser leg；4th, tedge concetrated pipe；5th, tedge house steward；6th, drum；7th, down-comer house steward；8th, down-comer concetrated pipe；9th, down-comer branch pipe；10th, drum feed pump；11st, superheater；12nd, Air cooler；13rd, circulating cooling pond；14th, circulating cooling water-circulating pump；15th, recirculated cooling water upper hose；16th, cooling water return pipe；17th, cooling water water inlet switching valve；18th, cooling water backwater switching valve；19th, pressure gauge；20th, safety valve；21st, fresh demi-water filler pipe；22nd, fresh desalination deaerated water adds pipe.
Embodiment
The present invention is described in further detail with reference to embodiment, but protection scope of the present invention is not limited by embodiment.
A kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system as shown in Figure 1, pot type burner water collar includes upper water sleeve 1 and lower water jacket 2, upper water sleeve 1 is exchanged heat using Vaporizing cooling mode with high-temperature calcination Jiao, and steam-water separation is carried out by drum 6 and produces saturated vapor, the superheater 11 of caused saturated vapor access breaching, required superheated steam is provided to downstream user；By the way of cooling water indirect heat exchange, high-temperature calcination Jiao after upper water sleeve 1 is cooled down further is cooled to dump temperature and enters pot type burner discharge system lower water jacket 2.
Upper water sleeve 1 is composed in parallel by heat exchanger tube, heat exchanger tube uses to be affixed in steel plate inner sleeve in welding manner, upper water sleeve is set to form sleeve heat exchange structure, sleeve inner be high-temperature calcination Jiao's circulation passage, and the heat exchanger tube in sleeve is the circulation passage of high temperature circulation water and steam water interface.
Described upper water sleeve 1 and lower water jacket 2 make the material circulation area of lower water jacket identical by the way of straight tube.
The described bottom of upper water sleeve 1 sets the import of high temperature circulation water, connects down-comer concetrated pipe 8, and top sets the outlet of steam water interface, connects riser leg 3.
The high temperature steam water interface of the riser leg 3 of upper water sleeve 1 accesses tedge house steward 5 by tedge concetrated pipe 4 and enters drum 6, and high temperature circulation water divides the import of the high temperature circulation water to each upper water sleeve 1 by down-comer house steward 7 and through down-comer concetrated pipe 8.
High temperature circulation water in upper water sleeve 1 forms Natural Circulation by being arranged on height official post system existing for the drum 6 of a high position.
The bottom of upper water sleeve 1 sets sewage draining exit.
Drum 1 is provided with fresh desalination deaerated water and adds pipe 22, for controlling and adjusting the pressure gauge 19 and safety valve 20 of the stress level in drum, Stress control in drum 6 is in 0.8 ~ 1.2Mpa, fresh desalination deaerated water adds the drum feed pump 10 that pipe 22 is provided with and fresh desalination deaerated water is continuously replenished, to ensure drum high temperature recirculated water water and water level；It is provided with simultaneously in bottom and outer row's sewage draining exit is carried out to the sewage of drum 6.
The bottom of lower water jacket 2 sets circulating cooling water inlet, connects recirculated cooling water upper hose 15, and top sets circulating cooling water out, connects cooling water return pipe 16.
Recirculated cooling water after the cooling water return pipe 16 of lower water jacket 2 will heat up accesses Air cooler 12, circulating cooling pond 13 is returned to after cooling, and recycled by circulating cooling water-circulating pump 14；Circulating cooling pond 13 sets fresh demi-water filler pipe 21.
Stop valve is set on tedge house steward 5 and down-comer house steward 7.
Connecting line between recirculated cooling water upper hose 15 and down-comer concetrated pipe 7 is provided with cooling water water inlet switching valve 17, and the connecting line between cooling water return pipe 16 and tedge house steward 5 is provided with cooling water backwater switching valve 18.
A kind of burnt cooling of pot type burner high-temperature calcination and the application method of afterheat utilizing system, high-temperature calcination Jiao enters from upper water sleeve 1, in upper water sleeve 1, the burnt heat exchanger tube high temperature recirculated water with upper water sleeve 1 of high-temperature calcination is exchanged heat by Vaporizing cooling mode, and form steam water interface and enter riser leg 3, the riser leg 3 of the upper water sleeve 1 of other tank bodies enters tedge house steward 5 after tedge concetrated pipe 4 collects and accesses drum 6, and steam water interface carries out steam-water separation through drum 6；After separation saturated vapor access be arranged on pot type burner main chimney flue exhaust opening superheater 11 heated after form superheated steam, to be supplied to downstream user, high-temperature water after separation enters down-comer concetrated pipe 8 with the moisturizing of drum 6 through down-comer house steward 7, and point extremely each upper water sleeve 1 carries out cycle heat exchange；The water inlet of lower water jacket 2 connects the recirculated cooling water upper hose 15 in circulating cooling pond 13, delivery port connects the cooling water return pipe 16 in circulating cooling pond 13, cooling water after heat exchange enters recirculated cooling water pond 13 after being cooled by Air cooler 12, when drum 6 break down must it is out of service when, close rising main 5 and decline the stop valve of house steward 7, upper water sleeve 1 is set to be cut off with the circulatory system of drum 6, and open cooling water water inlet switching valve 17 and cooling water backwater switching valve 18, make the water inlet of upper water sleeve 1 and the recirculating cooling water system in backwater access circulating cooling pond 13, ensure the cooling effect of upper water sleeve, avoid the occurrence of the too high phenomenon of dump temperature.
Saturated-steam temperature after separation is at 170 DEG C ~ 190 DEG C.
By the Vaporizing cooling of the high temperature circulation water of upper water sleeve 1, high-temperature calcination Jiao is cooled to 200 ~ 300 DEG C from 1000 ~ 1100 DEG C.
Calcined coke after being cooled down by lower water jacket 2 is cooled to 60 DEG C ~ 80 DEG C.
Claims (16)
1. a kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system, it is characterized in that pot type burner water collar includes upper water sleeve and lower water jacket, upper water sleeve is exchanged heat using Vaporizing cooling mode with high-temperature calcination Jiao, and steam-water separation is carried out by drum and produces saturated vapor, the superheater of caused saturated vapor access breaching, required superheated steam is provided to downstream user；By the way of cooling water indirect heat exchange, high-temperature calcination Jiao after upper water sleeve is cooled down further is cooled to dump temperature and enters pot type burner discharge system lower water jacket.
2. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 1 and afterheat utilizing system, it is characterized in that upper water sleeve is composed in parallel by heat exchanger tube, heat exchanger tube uses to be affixed in steel plate inner sleeve in welding manner, upper water sleeve is set to form sleeve heat exchange structure, sleeve inner is high-temperature calcination Jiao's circulation passage, and the heat exchanger tube in sleeve is high temperature circulation water and the circulation passage of steam water interface.
3. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 1 and afterheat utilizing system, it is characterised in that described upper water sleeve and lower water jacket make the material circulation area of lower water jacket identical by the way of straight tube.
4. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 1 and afterheat utilizing system, it is characterised in that described upper water sleeve bottom sets the import of high temperature circulation water, connects down-comer concetrated pipe, and top sets the outlet of steam water interface, connects riser leg.
5. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 4 and afterheat utilizing system, it is characterized in that the high temperature steam water interface of the riser leg of upper water sleeve accesses tedge house steward by tedge concetrated pipe enters drum, high temperature circulation water enters upper water sleeve water inlet by down-comer house steward and through down-comer concetrated pipe point to down-comer branch pipe.
6. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 1 and afterheat utilizing system, it is characterised in that the high temperature circulation water in upper water sleeve forms Natural Circulation by being arranged on height official post system existing for the drum of a high position.
7. a kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system according to claim 1, it is characterised in that upper water sleeve bottom sets sewage draining exit.
8. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 1 and afterheat utilizing system, it is characterized in that drum, which is provided with fresh desalination deaerated water, adds pipe, for controlling and adjusting the pressure gauge and safety valve of the stress level in drum, the Stress control in drum is in 0.8 ~ 1.2MPa；It is provided with simultaneously in bottom and outer row's sewage draining exit is carried out to steam drum sewage.
9. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 1 and afterheat utilizing system, it is characterised in that lower water jacket bottom sets circulating cooling water inlet, connects recirculated cooling water upper hose, and top sets circulating cooling water out, connects cooling water return pipe.
10. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 9 and afterheat utilizing system, it is characterized in that the recirculated cooling water after lower water jacket cooling water return pipe will heat up accesses Air cooler, circulating cooling pond is returned to after cooling, and is recycled by circulating cooling water-circulating pump；Circulating cooling pond sets fresh demi-water filler pipe.
11. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 5 and afterheat utilizing system, it is characterised in that stop valve is set on tedge house steward and down-comer house steward.
12. a kind of pot type burner high-temperature calcination Jiao cooling according to claim 5 and afterheat utilizing system, it is characterized in that the connecting line between recirculated cooling water upper hose and down-comer concetrated pipe is provided with cooling water water inlet switching valve, the connecting line between cooling water return pipe and riser leg is provided with cooling water backwater switching valve.
13. a kind of burnt cooling of pot type burner high-temperature calcination and the application method of afterheat utilizing system, it is characterized in that high-temperature calcination Jiao enters from upper water sleeve, in upper water sleeve, the burnt heat exchanger tube high temperature recirculated water with upper water sleeve of high-temperature calcination is exchanged heat by Vaporizing cooling mode, and form steam water interface and enter riser leg, the riser leg of the upper water sleeve of other tank bodies enters tedge house steward after tedge concetrated pipe collects and accesses drum, and steam water interface carries out steam-water separation through drum；After separation saturated vapor access be arranged on pot type burner main chimney flue exhaust opening superheater heated after form superheated steam, to be supplied to downstream user, high-temperature water after separation enters down-comer concetrated pipe with drum moisturizing through down-comer house steward, and point extremely each upper water sleeve carries out cycle heat exchange；The water inlet of lower water jacket connects the recirculated cooling water upper hose in circulating cooling pond, delivery port connects the cooling water return pipe in circulating cooling pond, cooling water after heat exchange enters recirculated cooling water pond after being cooled by Air cooler, when drum or upper water sleeve failure must be out of service, close rising main and decline the stop valve of house steward, upper water sleeve is set to be cut off with drum circulation, and cooling water water inlet switching valve and cooling water backwater switching valve are opened, make the water inlet of upper water sleeve and the recirculating cooling water system in backwater access circulating cooling pond.
14. the burnt cooling of a kind of pot type burner high-temperature calcination according to claim 13 and the application method of afterheat utilizing system, it is characterised in that the saturated-steam temperature after separation is at 170 DEG C ~ 190 DEG C.
15. the burnt cooling of a kind of pot type burner high-temperature calcination according to claim 13 and the application method of afterheat utilizing system, it is characterised in that by the Vaporizing cooling of the high temperature circulation water of upper water sleeve, high-temperature calcination Jiao is cooled to 200 ~ 300 DEG C from 1000 ~ 1100 DEG C.
16. the burnt cooling of a kind of pot type burner high-temperature calcination according to claim 13 and the application method of afterheat utilizing system, it is characterised in that the calcined coke after being cooled down by lower water jacket is cooled to 60 DEG C ~ 80 DEG C.
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| CN201610295282.1A CN107345768A (en) | 2016-05-06 | 2016-05-06 | A kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system and application method |
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| CN201610295282.1A CN107345768A (en) | 2016-05-06 | 2016-05-06 | A kind of burnt cooling of pot type burner high-temperature calcination and afterheat utilizing system and application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282659A (en) * | 2018-08-27 | 2019-01-29 | 中冶华天南京工程技术有限公司 | The heat power generating system of can-type calcine furnace calcined coke and fume afterheat comprehensive utilization |
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