CN109423314A - A kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and method - Google Patents
A kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and method Download PDFInfo
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- CN109423314A CN109423314A CN201710777319.9A CN201710777319A CN109423314A CN 109423314 A CN109423314 A CN 109423314A CN 201710777319 A CN201710777319 A CN 201710777319A CN 109423314 A CN109423314 A CN 109423314A
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- CN
- China
- Prior art keywords
- coke dry
- water
- demineralized water
- temperature smoke
- feed pump
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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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/003—Feed-water heater systems
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The present invention relates to a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and method, which includes high-temperature smoke collecting dust-removing unit and boiler feedwater preheating unit；High-temperature smoke collecting dust-removing unit includes coke dry quenching furnace ontology, coke dry-quenching loading device, sack cleaner, dedusting fan, chimney；Coke dry-quenching loading device is at the top of coke dry quenching furnace ontology, coke dry-quenching loading device passes through water cold sleeve by high-temperature smoke collecting dust-removing pipeline and gives sack cleaner connection, sack cleaner people outlet is communicated with dedusting fan entrance, and dedusting fan outlet is discharged by the entrance of chimney by chimney；Boiler feedwater preheating unit includes sweet-water tank, the first demineralized water feed pump, water cold sleeve, demineralized water heat storage water tank, the second demineralized water feed pump, secondary economizer.To reduce dry coke quenching operating cost to high-temperature smoke waste heat energy effective recycling, the double benefit of environment and economy is brought for enterprise.
Description
Technical field
The present invention relates to a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and methods.Belong to dry coke quenching energy conservation
Technical field.
Background technique
Substitute technology of the Dry Quenching Technology as coke-oven plant's tradition coke wet quenching technology, with its energy-saving and environment-friendly advantage by enterprise
It is widely recognized as receiving, while being also the new technology that national industry widelys popularize support.Dry coke quenching environmental dust removal technology is dry coke quenching
Solve the key technology of environmental problem in project, flue dust source mainly has dry coke quenching furnace roof charging apparatus to fill to generate when the industry of Jiaozhuo
High-temperature smoke, dry coke quenching furnace roof and the flue dust for prestoring the release flue dust of section, the continuous coke discharging generation in coke dry quenching furnace lower part, wherein dry put out
Coke oven top charging apparatus fills the flue dust temperature generated when the industry of Jiaozhuo and is up to 500 ~ 600 DEG C, and fume amount is big, and it is total to account for about coke dry quenching furnace
50% or so of dedusting air quantity.In the bag-type dust removing system of ground environment dust removing station, the use temperature of cloth bag is usually no more than 150
DEG C, it is therefore desirable to high-temperature smoke is cooled down, frequently with heat regenerator or chimney cooler, is converged again after being cooled down in a manner of air-cooled
It closes other dedusting point flue dust and enters dust pelletizing system processing, cause the loss of this partial heat, be unfavorable for energy conservation and environmental protection.
Summary of the invention
The object of the present invention is to provide a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and methods, so as to right
High-temperature smoke waste heat energy effective recycling reduces dry coke quenching operating cost, and the double benefit of environment and economy is brought for enterprise.
For achieving the above object, system of the invention adopts the following technical scheme that a kind of coke dry quenching furnace rises warm cigarette
Dirt waste heat recycling system, including high-temperature smoke collecting dust-removing unit and boiler feedwater preheating unit；
High-temperature smoke collecting dust-removing unit include coke dry quenching furnace ontology, coke dry-quenching loading device, sack cleaner, dedusting fan,
Chimney；Coke dry-quenching loading device passes through high-temperature smoke collecting dust-removing pipe in the top of coke dry quenching furnace ontology, coke dry-quenching loading device
Road passes through water cold sleeve and gives sack cleaner connection, and sack cleaner people outlet is communicated with dedusting fan entrance, dedusting fan
Outlet is discharged by the entrance of chimney by chimney；
Boiler feedwater preheating unit includes sweet-water tank, the first demineralized water feed pump, water cold sleeve, demineralized water heat storage water tank,
Two demineralized water feed pumps, secondary economizer；
There is water cold sleeve water inlet in the water cold sleeve upper end, and there are water cold sleeve water outlet, the first demineralized water feed pump in lower end
One end is connect with water cold sleeve water inlet, and the other end is connected by boiler feedwater pipeline with brine tank；Water cold sleeve water outlet
It is connect by boiler feedwater pipeline with demineralized water heat storage water tank arrival end, demineralized water heat storage water tank outlet end passes through the second demineralized water
Feed pump auxiliary connection economizer.
The deduster is sack cleaner.
First demineralized water feed pump and dedusting fan include synchronous switch, and synchronous switch is burnt mounted in coke dry-quenching loading device dress
Mouthful, synchronous switch electrode is electrically connected with the first demineralized water feed pump and dedusting fan respectively.
Chimney cooler is added on the high-temperature smoke collecting dust-removing pipeline.
First demineralized water feed pump and dedusting fan have more, the first parallel demineralized water feed pump and dedusting fan it
Between have switching switch.
A kind of coke dry quenching furnace top high-temperature smoke waste heat recycle method includes at least following steps:
A, the burnt movement of coke dry-quenching loading device dress starts, and the dedusting fan interlocked with it runs at high speed, and extracts ash-laden gas, interlocking out
The first demineralized water feed pump open, to water cold sleeve convey demineralized water, demineralized water in water cold sleeve demineralized water heat exchange after
Into demineralized water heat storage water tank, enters sack cleaner after high-temperature smoke cooling and handle, be discharged through chimney；
B, the burnt movement of coke dry-quenching loading device dress of step A terminates, and the dedusting fan interlocked with it is transferred to low-speed running, interlocking
First demineralized water feed pump is closed, and stops conveying demineralized water to water cold sleeve.
The high-temperature smoke that the present invention generates when dry coke quenching furnace roof is filled burnt passes through water cold sleeve after collecting, with boiler feedwater
(demineralized water) heat exchange, on the one hand makes high-temperature smoke be reduced to the temperature of sack cleaner processing requirement；On the other hand using high
Warm flue dust waste heat heats boiler feedwater, reaches the temperature (not less than 60 DEG C) into secondary economizer requirement, saves
Other modes pre- thermogenetic consumption, reduce operating cost.Meanwhile the present invention will fill the discontinuous of burnt generation because discontinuous
High-temperature smoke waste heat is converted into Continuous Heat by heat storage water tank adjusting, significant to continuous production.
Coke dry quenching furnace top high-temperature smoke waste heat recycling system according to the present invention and method are, it can be achieved that high-temperature smoke
The effective recycling of waste heat reduces dry coke quenching operating cost, and the double benefit of environment and economy is brought for enterprise.
It is described further with reference to the accompanying drawings and embodiments.
Detailed description of the invention
Fig. 1 is present system schematic diagram.
In figure: 1, coke dry-quenching loading device；2, coke dry quenching furnace ontology；3, deduster；4, dedusting fan；5, chimney；6, it removes
Brine tank；7, demineralized water feed pump I；8, water cold sleeve；9, demineralized water heat storage water tank；10, demineralized water feed pump II；11, secondary to save
Coal device；12, high-temperature smoke collecting dust-removing pipeline；13, boiler feedwater pipeline；14, water cold sleeve water outlet；15, water cold sleeve into
The mouth of a river.
Specific embodiment
Embodiment 1
As shown in Figure 1, a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system, including high-temperature smoke collecting dust-removing unit
And boiler feedwater preheating unit.
High-temperature smoke collecting dust-removing unit includes coke dry quenching furnace ontology 2, coke dry-quenching loading device 1, sack cleaner 3, removes
Dirt blower 4, chimney 5；Coke dry-quenching loading device 1 passes through high temperature cigarette in the top of coke dry quenching furnace ontology 2, coke dry-quenching loading device 1
Dirt collecting dust-removing pipeline 12 passes through water cold sleeve 8 and gives the connection of sack cleaner 3,3 people of sack cleaner outlet and dedusting fan
4 entrances communicate, and the outlet of dedusting fan 4 is discharged by the entrance of chimney 5 by chimney 5；
Boiler feedwater preheating unit includes sweet-water tank 6, the first demineralized water feed pump 7, water cold sleeve 8, demineralized water heat storage water tank
9, the second demineralized water feed pump 10, secondary economizer 11；
There is water cold sleeve water inlet 15 in 8 upper end of water cold sleeve, and there are water cold sleeve water outlet 14, the first demineralized water in lower end
7 one end of feed pump is connect with water cold sleeve water inlet 15, and the other end is connected by boiler feedwater pipeline 13 with brine tank 6；Water
Cold casing water outlet 14 is connect by boiler feedwater pipeline 13 with 9 arrival end of demineralized water heat storage water tank, demineralized water heat storage water tank 9
And its boiler feedwater pipeline 13 of connection does isothermal holding.
9 outlet end of demineralized water heat storage water tank is by 10 auxiliary connection economizer 11 of the second demineralized water feed pump, when work, the
Two demineralized water feed pumps 10 are opened always, continuously convey demineralized water to secondary economizer (11).
Sack cleaner 3 is sack cleaner.
First demineralized water feed pump 7 and dedusting fan 4 include synchronous switch, and synchronous switch is mounted in coke dry-quenching loading device 1
Jiao Kou is filled, synchronous switch electrode is electrically connected with the first demineralized water feed pump 7 and dedusting fan 4 respectively.Coke dry-quenching loading device 1 fills
When coke movement, touch switch works at the same time the first demineralized water feed pump 7 and dedusting fan 4, realization coke dry-quenching loading device 1,
First demineralized water feed pump 7 and dedusting fan 4 interlock.When coke dry-quenching loading device 1 fills coke, dedusting fan 4 runs at high speed, the
One demineralized water feed pump 7 is opened；When coke dry-quenching loading device 1 does not fill coke, 4 low-speed running of dedusting fan, the first demineralized water is given
Water pump 7 is closed.
When work, coke dry-quenching loading device 1 fills burnt movement and interlocks with the first demineralized water feed pump 7, the setting of dedusting fan 4,
When coke dry-quenching loading device 1 fills coke, dedusting fan 4 runs at high speed, and the first demineralized water feed pump 7 is opened；It is filled in dry coke quenching
When entering device 1 and not filling coke, 4 low-speed running of dedusting fan, the first demineralized water feed pump 7 is closed；Second demineralized water feed pump 10 begins
It opens eventually, continuously conveys demineralized water to secondary economizer 11；Demineralized water heat storage water tank 9 and its boiler feedwater pipeline 13 of connection are done
Isothermal holding.Coke dry-quenching loading device belongs to the prior art, is just not described in detail here.
A kind of coke dry quenching furnace top high-temperature smoke waste heat recycle method includes at least following steps:
A, coke dry-quenching loading device 1 fills burnt movement and starts, and the dedusting fan 4 interlocked with it runs at high speed, and extracts ash-laden gas, connection out
First demineralized water feed pump 7 of lock is opened, and conveys demineralized water to water cold sleeve 8, demineralized water of the demineralized water in water cold sleeve 8 changes
Enter demineralized water heat storage water tank 9 after heat, enters sack cleaner 3 after high-temperature smoke cooling and handle, be discharged through chimney 4；
B, the coke dry-quenching loading device 1 of step A fills burnt movement and terminates, and the dedusting fan 4 interlocked with it is transferred to low-speed running, interlocking
The first demineralized water feed pump 7 close, stop to water cold sleeve 8 convey demineralized water.
Embodiment 2
2 basic structure of embodiment with embodiment 1, the difference is that: as desalination coolant-temperature gage, flow cannot make high-temperature smoke cooling
To the cooling devices such as chimney cooler when requiring temperature, being added on high-temperature smoke collecting dust-removing pipeline 12 with spare.
Embodiment 3
Basic structure difference from Example 1 is: if to fill the burnt period short for coke dry-quenching loading device 1, to avoid the first desalination
4 frequent start-stop of water feed pump 7 and dedusting fan, the first demineralized water feed pump 7 and dedusting fan 4 have more, and parallel first
There is switching to switch between demineralized water feed pump 7 and dedusting fan 4, to be used alternatingly.
With boiler feedwater (desalination after the high-temperature smoke collection generated when the advantage of the invention is that dry coke quenching furnace roof being filled burnt
Water) heat exchange, so that high-temperature smoke is reduced to the temperature of sack cleaner processing requirement；On the other hand high-temperature smoke is utilized
Waste heat heats boiler feedwater, reaches the temperature (not less than 60 DEG C) into secondary economizer requirement, saves other
The pre- thermogenetic consumption of mode, reduces operating cost.Meanwhile the present invention will be because of the burnt discontinuous high temperature cigarette generated of discontinuous dress
Dirt waste heat is converted into Continuous Heat, significant to continuous production.
The foregoing is merely illustrative of the preferred embodiments of the present invention, and actual structure is not limited to this, all of the invention
Any modifications, equivalent replacements, and improvements etc. done within spirit and principle, should all be included in the protection scope of the present invention.
The well-known components and common structure or conventional means of component and the structure category industry that the present embodiment does not describe in detail, here not
It describes one by one.
Claims (6)
1. a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system, including high-temperature smoke collecting dust-removing unit and boiler
Feed-water preheating unit；
High-temperature smoke collecting dust-removing unit include coke dry quenching furnace ontology (2), coke dry-quenching loading device (1), sack cleaner (3),
Dedusting fan (4), chimney (5)；Top of the coke dry-quenching loading device (1) in coke dry quenching furnace ontology (2), coke dry-quenching loading device
(1) water cold sleeve (8) are passed through by high-temperature smoke collecting dust-removing pipeline (12) and gives sack cleaner (3) connection, bag-type dusting
Device (3) people outlet is communicated with dedusting fan (4) entrance, and dedusting fan (4) outlet is arranged by the entrance of chimney (5) by chimney (5)
Out；
Boiler feedwater preheating unit includes sweet-water tank (6), the first demineralized water feed pump (7), water cold sleeve (8), demineralized water storage
Boiler (9), the second demineralized water feed pump (10), secondary economizer (11)；
Described water cold sleeve (8) upper end has water cold sleeve water inlet (15), and lower end has water cold sleeve water outlet (14), and first removes
Salt water feed pump (7) one end is connect with water cold sleeve water inlet (15), and the other end passes through boiler feedwater pipeline (13) and brine tank
(6) it is connected；Water cold sleeve water outlet (14) is connected by boiler feedwater pipeline (13) and demineralized water heat storage water tank (9) arrival end
It connects, demineralized water heat storage water tank (9) outlet end passes through second demineralized water feed pump (10) auxiliary connection economizer (11).
2. a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system according to claim 1, it is characterized in that: described
Deduster (3) be sack cleaner.
3. a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system according to claim 1, it is characterized in that: first
Demineralized water feed pump (7) and dedusting fan (4) include synchronous switch, and synchronous switch fills Jiao Kou mounted in coke dry-quenching loading device (1),
Synchronous switch electrode is electrically connected with the first demineralized water feed pump (7) and dedusting fan (4) respectively.
4. a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system according to claim 1, it is characterized in that: described
High-temperature smoke collecting dust-removing pipeline (12) on add chimney cooler.
5. a kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system according to claim 1, it is characterized in that: first
Demineralized water feed pump (7) and dedusting fan (4) have more, the first parallel demineralized water feed pump (7) and dedusting fan (4) it
Between have switching switch.
6. a kind of coke dry quenching furnace top high-temperature smoke waste heat recycle method includes at least following steps:
A, the burnt movement of coke dry-quenching loading device (1) dress starts, and the dedusting fan (4) interlocked with it runs at high speed, and extracts dust constaining out
First demineralized water feed pump (7) of gas, interlocking is opened, and conveys demineralized water to water cold sleeve (8), demineralized water is in water cold sleeve (8)
Enter demineralized water heat storage water tank (9) after interior demineralized water heat exchange, enters sack cleaner (3) after high-temperature smoke cooling and handle, warp
Chimney (4) discharge；
B, the burnt movement of coke dry-quenching loading device (1) dress of step A terminates, and the dedusting fan (4) interlocked with it is transferred to low-speed running,
First demineralized water feed pump (7) of interlocking is closed, and stops conveying demineralized water to water cold sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777319.9A CN109423314A (en) | 2017-09-01 | 2017-09-01 | A kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777319.9A CN109423314A (en) | 2017-09-01 | 2017-09-01 | A kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and method |
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| Publication Number | Publication Date |
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| CN109423314A true CN109423314A (en) | 2019-03-05 |
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| CN201710777319.9A Pending CN109423314A (en) | 2017-09-01 | 2017-09-01 | A kind of coke dry quenching furnace top high-temperature smoke waste heat recycling system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110437849A (en) * | 2019-08-21 | 2019-11-12 | 中冶焦耐(大连)工程技术有限公司 | Dry coke quenching and coke oven flue gas combined purifying technique and system |
| CN110437849B (en) * | 2019-08-21 | 2024-04-26 | 中冶焦耐(大连)工程技术有限公司 | Dry quenching and coke oven flue gas combined purification process and system |
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| CN104987869A (en) * | 2015-07-17 | 2015-10-21 | 南京贝特空调设备有限公司 | Dry quenching furnace system cooling apparatus |
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2017
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|---|---|---|---|---|
| US4338160A (en) * | 1979-07-30 | 1982-07-06 | Charbonnages De France | Process for drying and/or preheating coal |
| CN2454377Y (en) * | 2000-12-08 | 2001-10-17 | 于彦奎 | Dry coke-quenching dust-collecting apparatus |
| CN101725954A (en) * | 2008-10-24 | 2010-06-09 | 同济大学 | Novel process for coupling utilization of waste heat recovery of riser of coke oven and coke dry quenching system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110437849A (en) * | 2019-08-21 | 2019-11-12 | 中冶焦耐(大连)工程技术有限公司 | Dry coke quenching and coke oven flue gas combined purifying technique and system |
| CN110437849B (en) * | 2019-08-21 | 2024-04-26 | 中冶焦耐(大连)工程技术有限公司 | Dry quenching and coke oven flue gas combined purification process and system |
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