CN206474019U - A kind of active coke dry-method desulfuration device regenerator residual neat recovering system - Google Patents
A kind of active coke dry-method desulfuration device regenerator residual neat recovering system Download PDFInfo
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- CN206474019U CN206474019U CN201720169056.9U CN201720169056U CN206474019U CN 206474019 U CN206474019 U CN 206474019U CN 201720169056 U CN201720169056 U CN 201720169056U CN 206474019 U CN206474019 U CN 206474019U
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- regenerator
- heat exchanger
- type heat
- nitrogen
- rotary type
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Abstract
The utility model discloses a kind of active coke dry-method desulfuration device regenerator residual neat recovering system, and system includes regenerator, hot air circulation blower, heater, cooling blower, sealing nitrogen pipeline, plate type heat exchanger and rotary type heat exchanger；Sealing nitrogen pipeline is sequentially connected with plate type heat exchanger, rotary type heat exchanger and regenerator charging aperture；The sealing nitrogen of column overhead is regenerated as waste heat recovery carrier, is carried out one-level preheating and secondary preheating with regenerator cooling section outlet air, regenerator bringing-up section discharged gas fume respectively, sealing nitrogen is sent to regenerator preheating section, is realized that the step of waste heat is reclaimed；Discharged gas fume is sent on adsorption column outlet flue gas house steward and discharged by chimney.The utility model advantage is to realize waste heat recovery, improves sealing nitrogen inlet temperature of stabilizer, regenerator heat utilization ratio, activated coke and enters the burnt temperature of preheating section, reduces heater Fuel Consumption, improves resolution gas tower exit temperature, it is to avoid regeneration gas corrosive pipeline problem.
Description
Technical field
The utility model belongs to flue gas desulfurization technique field, and in particular to more than a kind of active coke dry-method desulfuration device regenerator
Heat recovery system.
Background technology
Active coke dry-method desulfuration is to utilize activated coke and the SO in fire coal boiler fume2Under effect, with the water in flue gas, oxygen
Gas chemically reacts, and generates sulfuric acid.Adsorption saturation SO2Activated coke afterwards flows into regenerator from adsorption tower, flows separately through preheating
Section, parsing section, cooling section activity recovery, adsorption tower circulation absorption is sent back to finally by lifting means such as conveyers.
Illustrate by taking accompanying drawing 3 as an example, in the prior art, the thermal source of regenerator parsing section is generally from heater (such as heat
Wind furnace etc.) heat that brings of flue gas after burning, temperature is up to more than 420 DEG C；Preheating section thermal source then comes from hot-blast stove high-temperature flue gas
Waste heat after parsing section heat exchange, temperature is also up to more than 330 DEG C, and flue gas is shunted from preheating section outlet (node B ')：A part of cigarette
Gas is recycled to mix again with the high-temperature flue gas of fuel combustion generation in heater by hot air circulation blower and come back to again
Raw tower parsing section, part of smoke (more than 20%) is drained off to ensure the pressure in heater, causes heat very big
Waste；Regenerator cooling section is, using cold air as cooling medium, the dump temperature of regenerator to be controlled at 110 DEG C or so,
Usual cooling section outlet (node A ') temperature can reach more than 90~100 DEG C.Current most of factories all can be directly these
Arranged outside thermal source.
Regenerator parsing section typically requires that air outlet temperature reaches more than 350 DEG C, can be prevented effectively from corruption of the regeneration gas to pipeline
Erosion.And in actual production process, the temperature of resolution gas is but extremely difficult to so high temperature.Trace it to its cause mainly：
1) nitrogen of sealing is included in resolution gas, sealing nitrogen pipeline of the prior art is to connect firing equipment by nitrogen
Gas is preheating to 100 DEG C or so reconnection regenerator charging apertures, seals the temperature of nitrogen it cannot be guaranteed that meeting technique productions requirement, close
Nitrogen temperature is too low can reduce and the mixed wind-warm syndrome of resolution gas for envelope.
2) content of activated coke resolving reclaimed water is larger, and the evaporation latent heat of water can consume the heat of many high-temperature flue gas.
Above prior art active coke dry-method desulfuration has the disadvantage that：
1) directly being arranged outside the heat of regenerator, the utilization rate of the heat through initial estimate regenerator is only 40% or so,
Energy utilization rate is relatively low.
2) outer row's temperature of desulphurization denitration flue gas is too low, causes the phenomenon of condensation to occur, brings equipment corrosion.
Therefore, how to design a kind of active coke dry-method desulfuration device regenerator residual neat recovering system is those skilled in the art
The current technical issues that need to address.
Utility model content
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of active coke dry-method desulfuration device again
Raw tower residual neat recovering system, the inlet temperature of stabilizer for sealing nitrogen, solution are improved by the step way of recycling to regenerator waste heat heat
The problem of certainly original system regenerator heat utilization ratio is low.
To achieve the above object, the utility model is adopted the following technical scheme that：A kind of active coke dry-method desulfuration device regeneration
Tower residual neat recovering system, including regenerator, hot air circulation blower, heater, cooling blower and sealing nitrogen pipeline, cool down wind
Machine connects regenerator cooling section import, and hot air circulation blower one end is connected with regenerator preheating section outlet conduit, the other end and heat
Generator is connected, and heater is connected with regenerator parsing section；It is characterized in that the residual neat recovering system sets plate type heat exchanger and returned
Make the transition heat exchanger；Described sealing nitrogen pipeline and plate type heat exchanger, rotary type heat exchanger and regeneration
Tower charging aperture is sequentially connected；Described plate type heat exchanger is connected with regenerator cooling section outlet conduit, carries out the one of sealing nitrogen
Level preheating；Described rotary type heat exchanger is connected with regenerator preheating section discharged gas fume outlet conduit, is sealed
Two grades of preheatings of nitrogen.
Further improve, described plate type heat exchanger uses parallel-connection structure, and operating pressure carrys out atmospheric pressure higher than nitrogen, heat transfer
Plate uses the straight corrugated plating of level.
Further improve, thermal medium is regenerator cooling section outlet air (~100 DEG C) in described plate type heat exchanger, cold
Medium is nitrogen at room.
Further improve, set between described regenerator bringing-up section discharged gas fume outlet and rotary type heat exchanger
Flue gas pressurizer tank.
Further improve, described rotary type heat exchanger is turned to along rotor is divided into flue gas area, transition region, nitrogen
Area and transition region, four ratios for accounting for rotor section are：1/2nd, 1/12,1/3,1/12, because exhaust gas volumn volume flow compares nitrogen
Greatly, so flue gas flow cross-section areas is bigger than nitrogen flow cross-section areas.
Further improve, the transition region of described rotary type heat exchanger using nitrogen-sealed mode carry out every
Absolutely, isolation flue gas and nitrogen, make both mutually not permeable mixed.
Further improve, described rotary type heat exchanger also includes rotor heat storage, described rotor accumulation of heat
Body is that the two is in spaced mode between the corrugated plating being pressed into by the thick steel plates of 0.5~1mm, corrugated plating plus every location-plate.
A kind of active coke dry-method desulfuration device regenerator residual neat recovering system, method is that normal temperature sealing nitrogen is changed by board-like
Hot device and regenerator cooling section outlet (~100 DEG C) gas carry out one-level preheating, then by rotary type heat exchanger with
(~330 DEG C) progress secondary preheatings of regenerator bringing-up section discharged gas fume, sealing nitrogen is sent to regenerator preheating section after being heated, from
And realize that the step of regenerator waste heat is reclaimed, and is comprised the following steps that：
1) cooling air is blown to regenerator cooling section by cooling blower, and cooling section outlet (node A) air themperature can reach
More than 90~100 DEG C, be heated after air enter in plate type heat exchanger with sealing nitrogen once preheated, heat exchange mode
For heat convection and heat exchange pattern；Thermal medium air after heat exchange by directly emptying；
2) the sealing nitrogen after being heated can reach 40~50 DEG C, and the sealing nitrogen heated by one-level goes out from plate type heat exchanger
Mouth (node D) flows directly into rotary type heat exchanger by pipeline, and rotary type heat exchanger thermal source carrys out self-heating
Wind circulating system institute's discharged gas fume (node B), accumulation of heat of the discharged gas fume through flue gas pressurizer tank and rotary type heat exchanger
Plate is obtained after the heat of high-temperature flue gas (~330 DEG C), and the carrier regenerator in flue gas area is gone to nitrogen area by rotor, changed from board-like
The sealing nitrogen that hot device outlet (node D) flows into flows through the carrier regenerator having warmed up so as to realize the purpose of secondary preheating, passes through
The sealing nitrogen of rotary type heat exchanger nitrogen area outlet (node E) is finally transported to regenerator charging aperture；
3) discharged gas fume is total via rotary type heat exchanger flue gas area outlet (node C) and adsorption column outlet flue gas
Manifold is closed and discharged by chimney, can improve outer row's temperature of desulphurization denitration flue gas, it is to avoid discharged gas fume causes condensation because temperature is too low
Phenomenon occur.
Compared with prior art, the utility model has advantages below：
1) realize effective recovery of regenerator waste heat and utilize, improve sealing nitrogen and enter regenerator temperature, so as to carry
The high burnt temperature of regenerator tower preheating section activated coke, reduces the bringing-up section activated coke heating temperature difference, saves the fuel of heater
Consumption；The sealing nitrogen preheated by two-stage can also improve regenerator resolution gas outlet air temperature indirectly, it is to avoid because of resolution gas
The too low corrosion caused to pipeline of temperature.
2) on-way resistance can also reduce the pressure value that sealing nitrogen enters tower in two grades of warms, it is to avoid because carrying out atmospheric pressure mistake
Influence that is big and being produced to regeneration tower structure.
3) high-temperature medium flue gas can improve desulphurization denitration with converging after sealing nitrogen heat exchange with adsorption column outlet flue gas house steward
Outer row's temperature of flue gas, it is to avoid flue gas causes the phenomenon of condensation to occur because temperature is too low, it is ensured that the safe and stable fortune of system long period
OK.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain its special accompanying drawing according to the accompanying drawing of offer.
Fig. 1 is schematic flow sheet of the present utility model.
Fig. 2 is the utility model rotary type heat exchanger plane subregion schematic diagram.
Fig. 3 is active coke dry-method desulfuration device regenerator flow chart schematic diagram in the prior art.
In figure：1st, regenerator 2, hot air circulation blower 3, heater 4, cooling blower plate type heat exchanger 5, sealing nitrogen
Feed channel 6, plate type heat exchanger 7, rotary type heat exchanger 701, flue gas area 702, transition region 703, nitrogen area
704th, transition region 8, flue gas pressurizer tank.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
As seen from Figure 1, a kind of active coke dry-method desulfuration device regenerator residual neat recovering system, including regenerator 1, heat
Wind circulating fan 2, heater 3, cooling blower 4 and sealing nitrogen pipeline 5, the connection cooling section of regenerator 1 of cooling blower 4 enter
Mouthful, the one end of hot air circulation blower 2 is connected with the preheating section outlet conduit of regenerator 1, and the other end is connected with heater 3, and heat occurs
Device 3 is connected with the parsing of regenerator 1 section；It is characterized in that the residual neat recovering system sets plate type heat exchanger 6 and rotary type heat-accumulation type hot is handed over
Parallel operation 7；Sealing nitrogen pipeline 5 connects successively with plate type heat exchanger 6, rotary type heat exchanger 7 and the charging aperture of regenerator 1
Connect；Plate type heat exchanger 6 is connected with the cooling section outlet conduit of regenerator 1, carries out the one-level preheating of sealing nitrogen；Rotary type heat accumulating type
Heat exchanger 7 is connected with the preheating section discharged gas fume outlet conduit of regenerator 1, carries out two grades of preheatings of sealing nitrogen.
Plate type heat exchanger 6 uses parallel-connection structure, and operating pressure carrys out atmospheric pressure higher than nitrogen, and heat transfer plate uses the straight ripple of level
Card.
Thermal medium is the cooling section outlet air of regenerator 1 (~100 DEG C) in plate type heat exchanger 6, and cold medium is nitrogen at room.
As seen from Figure 1, set between the outlet of the bringing-up section discharged gas fume of regenerator 1 and rotary type heat exchanger 7
One flue gas pressurizer tank 8.
As seen from Figure 2, rotary type heat exchanger 7 along rotor turn to be divided into flue gas area 701, transition region 702,
Nitrogen area 703 and transition region 704, four ratios for accounting for rotor section are：1/2nd, 1/12,1/3,1/12, due to exhaust gas volumn volume
Flow-rate ratio nitrogen is big, so flue gas flow cross-section areas is bigger than nitrogen flow cross-section areas.
The transition region 702 and 704 of rotary type heat exchanger 7 is completely cut off using nitrogen-sealed mode, is isolated
Flue gas and nitrogen, make both mutually not permeable mixed.
Rotary type heat exchanger 7 also includes rotor heat storage, and described rotor heat storage is thick by 0.5~1mm
The corrugated plating that is pressed into of steel plate, between corrugated plating plus every location-plate, the two is in spaced mode.
A kind of active coke dry-method desulfuration device regenerator residual neat recovering system, method is that normal temperature sealing nitrogen is changed by board-like
Hot device 6 carries out one-level preheating with the cooling section of regenerator 1 outlet (~100 DEG C) gas, then passes through rotary type heat exchanger 7
With (~330 DEG C) progress secondary preheatings of the bringing-up section discharged gas fume of regenerator 1, sealing nitrogen is sent to regenerator 1 after being heated and preheated
Section, so as to realize that the step of regenerator waste heat is reclaimed, is comprised the following steps that：
1) cooling air is blown to the cooling section of regenerator 1 by cooling blower 4, and cooling section outlet (node A) air themperature is reachable
To more than 90~100 DEG C, be heated after air enter in plate type heat exchanger 6 with sealing nitrogen once preheated, heat exchange
Mode is heat convection and heat exchange pattern；Thermal medium air after heat exchange by directly emptying；
2) the sealing nitrogen after being heated can reach 40~50 DEG C, and the sealing nitrogen heated by one-level is from plate type heat exchanger 6
Outlet (node D) flows directly into rotary type heat exchanger 7 by pipeline, and the thermal source of rotary type heat exchanger 7 comes
Self-heating wind circulating system institute's discharged gas fume (node B), discharged gas fume is through flue gas pressurizer tank 8 and rotary type heat exchanger 7
Heat accumulation plate obtain after the heat of high-temperature flue gas (~330 DEG C), the carrier regenerator in flue gas area is gone to by rotor by nitrogen area, from
The sealing nitrogen that plate type heat exchanger 6 exports (node D) inflow flows through the carrier regenerator having warmed up so as to realize the mesh of secondary preheating
, the sealing nitrogen for exporting (node E) by the nitrogen area of rotary type heat exchanger 7 is finally transported to regenerator 1 and fed
Mouthful；
3) discharged gas fume is via the flue gas area of rotary type heat exchanger 7 outlet (node C) and adsorption column outlet flue gas
House steward converges to be discharged by chimney, can improve outer row's temperature of desulphurization denitration flue gas, it is to avoid discharged gas fume causes knot because temperature is too low
The phenomenon of dew occurs.
More than, preferred embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto, and appoints
What those familiar with the art the change that can readily occur in or replaces in the technical scope that the utility model is disclosed
Change, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim
The protection domain defined is defined.
Claims (7)
1. a kind of active coke dry-method desulfuration device regenerator residual neat recovering system, including regenerator (1), hot air circulation blower (2),
Heater (3), cooling blower (4) and sealing nitrogen pipeline (5), cooling blower (4) connection regenerator (1) cooling section import,
Hot air circulation blower (2) one end is connected with regenerator (1) preheating section outlet conduit, and the other end is connected with heater (3), heat hair
Raw device (3) is connected with regenerator (1) parsing section；It is characterized in that the residual neat recovering system sets plate type heat exchanger (6) and rotary type stores
Accepting heat exchanger (7)；Described sealing nitrogen pipeline (5) and plate type heat exchanger (6), rotary type heat exchanger (7)
It is sequentially connected with regenerator (1) charging aperture；Described plate type heat exchanger (6) is connected with regenerator (1) cooling section outlet conduit, is entered
The one-level preheating of row sealing nitrogen；Described rotary type heat exchanger (7) goes out with regenerator (1) preheating section discharged gas fume
Mouth pipeline connection, carries out two grades of preheatings of sealing nitrogen.
2. a kind of active coke dry-method desulfuration device regenerator residual neat recovering system according to claim 1, it is characterised in that：
Described plate type heat exchanger (6) uses parallel-connection structure, and operating pressure carrys out atmospheric pressure higher than nitrogen, and heat transfer plate uses the straight ripple of level
Card.
3. a kind of active coke dry-method desulfuration device regenerator residual neat recovering system according to claim 1, it is characterised in that：
Thermal medium is regenerator (1) cooling section outlet air (~100 DEG C) in described plate type heat exchanger (6), and cold medium is normal temperature nitrogen
Gas.
4. a kind of active coke dry-method desulfuration device regenerator residual neat recovering system according to claim 1, it is characterised in that：
Flue gas pressurizer tank is set between described regenerator (1) bringing-up section discharged gas fume outlet and rotary type heat exchanger (7)
(8)。
5. a kind of active coke dry-method desulfuration device regenerator residual neat recovering system according to claim 1, it is characterised in that：
Described rotary type heat exchanger (7) is turned to along rotor is divided into flue gas area (701), transition region (702), nitrogen area
(703) with transition region (704), four ratios for accounting for rotor section are：1/2、1/12、1/3、1/12.
6. a kind of active coke dry-method desulfuration device regenerator residual neat recovering system according to any one of claim 1 and 5, its
It is characterised by：The transition region (702 and 704) of described rotary type heat exchanger (7) is entered using nitrogen-sealed mode
Row isolation, isolation flue gas and nitrogen, make both mutually not permeable mixed.
7. a kind of active coke dry-method desulfuration device regenerator residual neat recovering system according to any one of claim 1 and 5, its
It is characterised by：Described rotary type heat exchanger (7) also includes rotor heat storage, and described rotor heat storage is served as reasons
Between the corrugated plating that steel plate thick 0.5~1mm is pressed into, corrugated plating plus every location-plate, the two is in spaced mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720169056.9U CN206474019U (en) | 2017-02-24 | 2017-02-24 | A kind of active coke dry-method desulfuration device regenerator residual neat recovering system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720169056.9U CN206474019U (en) | 2017-02-24 | 2017-02-24 | A kind of active coke dry-method desulfuration device regenerator residual neat recovering system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621809A (en) * | 2017-02-24 | 2017-05-10 | 中冶华天南京工程技术有限公司 | Regeneration tower waste heat recovering system and method of activated coke dry method desulfurizer |
| CN108927111A (en) * | 2018-08-08 | 2018-12-04 | 国家能源投资集团有限责任公司 | The device for making of powdered activated coke and the reparation technology of powdered activated coke |
| CN109351119A (en) * | 2018-11-07 | 2019-02-19 | 中冶北方（大连）工程技术有限公司 | The automatic control system and method for activated coke regeneration gas and sealing gland nitrogen matching |
| CN110270319A (en) * | 2019-07-02 | 2019-09-24 | 联峰钢铁（张家港）有限公司 | A kind of activated coke resolution system with warning function |
-
2017
- 2017-02-24 CN CN201720169056.9U patent/CN206474019U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621809A (en) * | 2017-02-24 | 2017-05-10 | 中冶华天南京工程技术有限公司 | Regeneration tower waste heat recovering system and method of activated coke dry method desulfurizer |
| CN106621809B (en) * | 2017-02-24 | 2023-07-21 | 中冶华天南京工程技术有限公司 | System and method for recovering waste heat of regeneration tower of active coke dry desulfurization device |
| CN108927111A (en) * | 2018-08-08 | 2018-12-04 | 国家能源投资集团有限责任公司 | The device for making of powdered activated coke and the reparation technology of powdered activated coke |
| CN109351119A (en) * | 2018-11-07 | 2019-02-19 | 中冶北方（大连）工程技术有限公司 | The automatic control system and method for activated coke regeneration gas and sealing gland nitrogen matching |
| CN110270319A (en) * | 2019-07-02 | 2019-09-24 | 联峰钢铁（张家港）有限公司 | A kind of activated coke resolution system with warning function |
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