CN207132737U - A kind of closed vessel furnace furnace gas recovery and cleaning treatment system - Google Patents
A kind of closed vessel furnace furnace gas recovery and cleaning treatment system Download PDFInfo
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- CN207132737U CN207132737U CN201720737324.2U CN201720737324U CN207132737U CN 207132737 U CN207132737 U CN 207132737U CN 201720737324 U CN201720737324 U CN 201720737324U CN 207132737 U CN207132737 U CN 207132737U
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- furnace
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- closed vessel
- flue gas
- treatment system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of recovery of closed vessel furnace furnace gas and cleaning treatment system, including incinerator, waste heat boiler and flue gas dust collecting system, in the combustion chamber that the furnace gas come from closed collecting hood enters incinerator by adiabatic flue, with preheated from air preheater after hot-air mixed after be sent to incinerator completely burned, the caused high-temperature flue gas after burning is entered after waste heat boiler carries out heat exchange cooling and entered in flue gas dust collecting system.A kind of closed vessel furnace furnace gas recovery of the present utility model and cleaning treatment system, heat energy recovery rate greatly improve, and efficiency of dust collection improves, while has saved substantial amounts of electric energy and cooling water, avoids secondary pollution.
Description
Technical field
The present invention relates to the recovery of closed vessel furnace furnace gas and cleaning treatment system, belong to industrial furnace waste heat recovery and gas cleaning
Field.
Background technology
Calcium carbide industry main production plant is furnace of calcium carbide at present, is divided into internal combustion type furnace of calcium carbide and closed type calcium carbide furnace, internal combustion
For formula furnace of calcium carbide compared with closed type calcium carbide furnace, energy consumption of unit product is higher, and waste discharge amount is larger.As the country has independently
The closed type calcium carbide furnace production technology of intellectual property is ripe and puts into application, big-and-middle under the principle for advocating energy-saving and emission-reduction
Type closed type calcium carbide furnace has turned into the inevitable development trend of following calcium carbide industry.It is a large amount of due to containing in closed type calcium carbide furnace tail gas
Fuel gas, for its tail gas how to carry out purified treatment and recovery the problem of also become restrict at present its development factor
One of.
While calcium carbide is generated in furnace of calcium carbide, substantial amounts of furnace gas can be accompanied by and produced, furnace gas is high temperature toxic gas, is contained
There are substantial amounts of CO, H2Gas, so for the furnace gas of closed type calcium carbide furnace cooling processing must be carried out while purification.Earliest
Most closed type calcium carbide furnace furnace gases recovery be using wet method cooling furnace gas after recycle, i.e., it is net using wet dedusting technology
Change furnace gas, the organic matter such as tar in furnace gas is effectively trapped, and the furnace gas after purification is emptied or utilized.This mode is not only
Substantial amounts of furnace of calcium carbide sensible heat is wasted, and consumes substantial amounts of power and water resource, causes the secondary pollution of water resource,
Purifying the dust fallen, easily caking is difficult cleaning, while wet dedusting process system is more complicated, and the air-tightness of system requires high,
Hidden danger is relatively more.
Later on the basis of Introduced From Abroad dry dedusting technology, dry dedusting technology closed calcium carbide has been successfully applied to
In the processing of stove furnace gas.Calcium carbide burner gas dry colling purification style generally use secondary cooling, i.e., the furnace gas come out from furnace of calcium carbide
Into main air cooling cyclone, two level sky cooler is entered back into, enters cloth after reducing the temperature to the requirement of sack cleaner
Bag dust removal filter, CO emptyings or utilization, most domestic closed calcium carbide furnace after filtering use such a technique.It is this
Mode equally wastes substantial amounts of furnace gas heat, and consumes substantial amounts of electric energy and carry out furnace gas cooling, although avoiding water resource
Secondary pollution, but it is higher to control and equipment requirement, and furnace gas must be down to after dry colling between 240 DEG C~280 DEG C, to keep away
Exempt from more than 280 DEG C to protect the possibility that filter bag, less than 240 DEG C tar separate out, therefore the filter bag of deduster should be selected and can born
More than 240 DEG C of high temperature import filter bag, cost and operating cost are higher.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of closed vessel furnace furnace gas recovery
And cleaning treatment system, heat energy recovery rate greatly improve, efficiency of dust collection improves, while has saved substantial amounts of electric energy and cooling water,
Avoid secondary pollution.
Technical scheme：In order to solve the above technical problems, a kind of closed vessel furnace furnace gas recovery of the present invention and purified treatment system
System, including incinerator, waste heat boiler and flue gas dust collecting system, furnace gas is entered by adiabatic flue and burnt caused by closed collecting hood
In the combustion chamber for burning stove, the air of outdoor is sent to after air preheater is preheated by air blower and enters incinerator accumulation of heat
Air compartment accumulation of heat, burning is sufficiently mixed with the furnace gas of combustion chamber, high-temperature flue gas is produced after burning and is entered in waste heat boiler, furnace gas exists
Entered after being exchanged heat in waste heat boiler in flue gas dust collecting system.
Preferably, the incinerator system includes air blower, burns furnace body, combustion control system etc..The burning
Furnace body includes burner, air compartment and burner hearth.
Preferably, the waste heat boiler includes the front-packed evaporator being sequentially arranged from entrance, pendant superheater, to flowing through
Hot device, counter flow evaporator, first order economizer and second level economizer, air preheater are located at first order economizer and the second level
Between economizer.
Preferably, the second level economizer is connected by water pump with oxygen-eliminating device, after demineralized water enters oxygen-eliminating device deoxygenation,
It is sent in the economizer of the second level by water pump, subsequently into being heated in first order economizer, is sent to after heating in drum, vapour
Bag is connected with front-packed evaporator and counter flow evaporator respectively, and drum carries out carbonated drink with front-packed evaporator and counter flow evaporator and followed naturally
Ring, the saturated vapor isolated through drum water separator are re-fed into after convection superheater is overheated and are sent to steam pipe
Net.
Preferably, the flue gas dust collecting system includes deduster, air-introduced machine and chimney, the deduster include insulation with
Filter, pulse spraying equipment, ash conveying device, storage ash silo and connecting line, flue gas are entered in deduster, pass through insulation
With filter by the dust-filtering in flue gas, then say that dust is blown on ash conveying device by pulse spraying equipment, pass through
Dust in ash conveying device is sent in storage ash silo by connecting line；The top of deduster is connected by air-introduced machine with chimney, will
Flue gas is discharged from chimney.
Preferably, the air-introduced machine uses fluid coupling or VFC rotation speed of fan, chimney uses reinforced concrete
Soil structure or steel design.Fan inlet sets damper and screen pack, to ensure that incinerator burning is abundant.
Preferably, mixing wind tube is provided with the outlet of the air preheater, to protect cloth bag.
In the present invention, its main flow is that the furnace gas that closed vessel furnace collecting hood comes is sent into burning by adiabatic flue
Combustion heat release is carried out after being mixed in stove burner with the hot-air heated from air blower through air preheater and produces high-temperature flue gas, is led to
Cross waste heat boiler and air preheater is cooled to less than 180 DEG C, then chimney is sent into by air-introduced machine after sack cleaner dedusting
After empty.Simultaneously can be according to the settable bypass pipe all the way of field condition, when boiler maintenance, the adjusted valve of furnace gas directly removes chimney
Emptying burning.Each evaporating surface of boiler carries out heat exchange with water, and user is sent to after vapours is pressed through in generation.
In the present invention, the incinerator system include an air blower, an incinerator (containing burner, air compartment and burner hearth),
One regulation and control system etc..This incinerator uses Regenerative Combustion Technology, and the cold air from air blower heats through air preheater
Incinerator air compartment is sent into afterwards, and closed vessel furnace furnace gas is sent to combustion chamber, and surrounding is disposed with multiple coal gas burners in combustion chamber, uses
Corner firing mode.Wherein closed furnace gas is used as main fuel but also as igniting thermal source.The fan inlet is set
Damper and screen pack, gas outlet are connected with air preheater import.Incinerator is by combustion control system so as to ensureing to fire
Burn abundant.
In the present invention, the afterheat boiler system include a waste heat boiler (containing drum), a feed pump, an oxygen-eliminating device,
One deashing device, a chemicals dosing plant, a steam trap connection, a sampler etc..The waste heat boiler is by front-packed evaporator, screen formula mistake
Hot device, convection superheater, double effect evaporator, two-stage economizer, two-stage air preheater, drum and corresponding rise and fall pipe group
Into.Incinerator, waste heat boiler and air preheater use integrated arrangement, and using inverted U-shaped structure, boiler support is tied using suspension
Structure.From the demineralized water that comes of outside it is pressurized after be sent to oxygen-eliminating device and carry out deoxygenation, the deaerated water after deoxygenation is added by feed pump
Economizer is sent to after pressure to be heated, and is re-fed into drum.Drum carries out carbonated drink Natural Circulation with evaporator, through drum carbonated drink
The saturated vapor that separator is isolated is re-fed into after superheater is overheated and is sent to steam pipe system.This afterheat boiler system
In view of the dust in furnace gas, its granularity is relatively small after high-temp combustion, and specific surface area is big, and water content is larger and with very strong
Absorption property, present invention employs fall the mode that ball ash-clearing technology and shock sootblowing technology be combined to solve boiler heating surface
Deashing problem, realize the stable operation of system.Carried out when the stove water water quality of boiler is unqualified by chemicals dosing plant at dosing
Reason is untill water quality meets to require.The sewer of waste heat boiler and drum is sent to the recyclable recycling in part after steam trap connection
Or cooling discharge.
In the present invention, the soot cleaning system includes falling the mode that ball deashing device and shockwave dust-blower are combined, and falls
The ball that falls in ball deashing device is mentioned steel ball in the distributing device on equipment top using elevator, according to distribution arrangement by equipment top
Under clan, under spring collision removes dust between pipe, and steel ball ash disposal system is provided with device bottom cleaning door, steel ball is collected
Get up.Such a ash disposal system can effectively remove ash content of the absorption on heat-exchanging tube bundle.Simultaneously in order to ensure dedusting effect,
The more serious region of dust stratification sets shockwave dust-blower, its shockwave dust-blower using gaseous fuel (such as acetylene) and air according to
Certain proportion is lighting generation detonation by high-energy igniter, and high pressure can be risen in exploding gas moment and forms stable shock wave,
Being diffused into boiler heating surface impact black dirt makes it come off so as to reach the purpose of deashing.Pass through the knot of both purge modes
Close so as to ensure that waste heat boiler is stable.
In the present invention, the air preheater system includes an air preheater, a switch valve etc..Go out from air blower
The air of mouth carries out heat exchange with waste heat boiler tail flue gas waste heat, will be re-fed into after the heating of its air in incinerator air compartment,
So that the efficiency of combustion of incinerator is improved, burning time shortens.One switch valve be arranged on air preheater air into and out of
On mouth pipeline.
In the present invention, the dust pelletizing system includes a sack cleaner, an ash conveying device, a storage ash silo etc..Closed
Stove furnace gas after waste heat boiler device cools, then is exchanged by air preheater and is down to through high-temperature flue gas caused by incinerator burns
Sack cleaner is sent to after less than 180 DEG C and carries out dust removal process.In order to protect deduster to set a mixed wind in its air inlet
Valve, open mixer selector valve when cigarette temperature is higher than 180 DEG C when air preheater outlet and cooled.Dust after sack cleaner is handled
Ash silo or ash disposal area institute are delivered to after entering ash conveying device.
In the present invention, the bypass pipe includes bypass regulator valve and by-pass flue.Bypass pipe is arranged on boiler and chimney
Between import, when abnormal or maintenance occurs in boiler, the adjusted valve of furnace gas directly goes chimney emptying burning.The air-introduced machine is set
Between house outlet and chimney import, air-introduced machine can use fluid coupling or VFC to save purpose, air-introduced machine
Blast meet boiler operatiopn and the requirement of fume emission.
Beneficial effect：Compared with prior art, the present invention has advantages below：
(1) the present invention takes the technique of " dedusting after first burning ", and totally-enclosed stove furnace gas is fired without cooling directly as fuel
Burn, the chloride in decomposition gas and dust, so that dedusting difficulty substantially reduces, and solve the pollution problem of cyanide；
(2) the present invention takes direct combustion system, the combustion heat of its furnace gas sensible heat and fuel gas is obtained for abundant profit
With avoid dry, Wet-way dust-collector need to be to causing heat to waste after furnace gas cooling；
(3) the present invention eliminates main air cooling cyclone and two level the air cooling cooling device such as but compared with the prior art,
The abrasion maintenance cost of the equipment investment repeatedly cooled down and draught fan impeller is not only saved, and has saved substantial amounts of electric energy and cold
But water；
(4) the present invention compares the requirement for reducing sack cleaner and using high temperature import filter bag than prior art, it is only necessary to adopts
With domestic high-quality filter bag, reduce sack cleaner equipment investment and operating cost, improve life of bag filter；
(5) incinerator of the present invention employs regenerative combustion technology, and cold air becomes hot-air after air preheater heats
It is re-fed into incinerator and participates in burning, improves the efficiency of combustion of boiler；
(6) incinerator of the present invention employs corner firing mode, its closed vessel furnace furnace gas has been obtained sufficient burning, keeps away
The second-time burning in waste heat boiler is exempted from；
(7) waste heat boiler of the present invention is provided with the structure of front-packed evaporator and pendant superheater in incinerator furnace outlet, keeps away
Exempt from that high-temperature flue gas caused by incinerator is too high to cause heated surface bundle to deform；
(8) the purge mode guarantee that waste heat boiler of the present invention employs ball ash-clearing technology and shock-wave ash-clearing mode is combined
The stable operation of system；
(9) feed pump of the present invention uses VFC, and blower fan uses fluid coupling or VFC, and in its cigarette wind
Corresponding regulating valve is provided with pipeline and steam-water pipeline, ensure that system operation energy stable operation with closed vessel furnace fluctuation,
And reach energy-conservation purpose；
(10) the present invention sets bypass pipe, and being suitable for closed vessel furnace working conditions change and plant maintenance does not influence environmental protection and production
Needs；
(11) the recovery of various closed vessel furnace furnace gases present invention can be suitably applied to, for furnace gas flowed fluctuation is very big or furnace gas temperature ripple
The furnace gas recovery of dynamic very big closed vessel furnace, can be a certain amount of by being sprayed into its incinerator to ensure producing steam pressure stability
Coal dust it is reliable to realize.
Using the closed vessel furnace furnace gas recovery of the present invention and flue gas purification system, compared with prior art, the steam of recovery
Yield is than adding 30~40%, and the electric energy and cooling water inflow that are consumed reduce more than 60%, whole system investment cost
Than reducing more than 30%, more than 50% is reduced per annual operating cost.Therefore the present invention have in engineering it is extraordinary economical and
Practical value.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of waste heat boiler.
Embodiment
As depicted in figs. 1 and 2, a kind of closed vessel furnace furnace gas of the invention recovery and cleaning treatment system, including closed
Stove recovery system and flue gas dust collecting system, caused furnace gas passes through adiabatic flue 3 by closed collecting hood 2 in calcium carbide furnace body 1
Enter in the combustion chamber of incinerator 5, air blower 4 is sent to accumulation of heat wind after the air of outdoor is preheated by air preheater 9
Room 6 carries out accumulation of heat, so can be sufficiently mixed burning with hot-air by furnace gas, the caused high-temperature flue gas after burning enters waste heat boiler
In 8, flue gas is entered in flue gas dust collecting system after being exchanged heat in waste heat boiler 8.
In the present invention, the waste heat boiler 8 includes the front-packed evaporator, pendant superheater, right being sequentially arranged from entrance
Flow superheater, counter flow evaporator, first order economizer and second level economizer, air preheater 9 be located at first order economizer with
Between the economizer of the second level, the porch of the waste heat boiler 8 is provided with the baffle plate of regulation flue gas flow field, the air preheater 9
Outlet on be provided with mixing wind tube.The second level economizer is connected by water pump 16 with oxygen-eliminating device 15, and demineralized water enters deoxygenation
After the deoxygenation of device 15, it is sent in the economizer of the second level by water pump 16, subsequently into being heated in first order economizer, is sent after heating
Enter into drum 17, drum 17 is connected with front-packed evaporator and counter flow evaporator respectively, drum 17 and front-packed evaporator and convection current
Evaporator carries out carbonated drink Natural Circulation, and the saturated vapor isolated through the water separator of drum 17 is re-fed into convection superheater
Steam pipe system is sent to after being overheated.
In the present invention, the flue gas dust collecting system includes deduster 10, air-introduced machine 11 and chimney 12, the deduster 10
Comprising insulation and filter, pulse spraying equipment, ash conveying device 13, storage ash silo 14 and connecting line, flue gas, which enters, to be removed
In dirt device 10, by insulation with filter by the dust-filtering in flue gas, then pass through pulse spraying equipment and instruction pair occurs
Filter bag automatic ash removing, the dust of collection are sent in storage ash silo 14 by ash conveying device 13；The top of deduster 10 passes through air inducing
Machine 11 is connected with chimney 12, and flue gas is discharged from chimney 12.The air-introduced machine 11 uses fluid coupling or VFC blower fan
Rotating speed, chimney 12 use reinforced concrete structure or steel design.
The technique of " dedusting after first burning " is taken in the invention, and totally-enclosed stove furnace gas directly as fuel and is come without cooling
Burnt from after the air mixing of air blower 4 in boiler furnace 7, the chloride in decomposition gas and dust, so that dedusting is difficult
Degree substantially reduces, and solves the pollution problem of cyanide；The combustion heat of its furnace gas sensible heat and fuel gas is obtained for simultaneously
Make full use of, avoid the waste that heat is caused after dry, Wet-way dust-collector need to cool down to furnace gas.
Closed vessel furnace furnace gas recovery system in the present invention is connected by adiabatic flue collecting hood 2 closed with closed vessel furnace,
The closed vessel furnace furnace gas recovery system is mainly by an adiabatic flue 3, an air blower 4, an incinerator 5, a waste heat boiler 8, and one
The grade of air preheater 9 forms.Wherein, the entrance furnace gas of incinerator combustion furnace 5 connects closed vessel furnace bonnet 2, drum by adiabatic flue 3
The entrance of blower fan 4 is communicated with air, and damper is set in its porch, and air blower 4 exports the entrance for being access to air preheater 9
Pipeline, the hot-air after the heating of afterbody high-temperature flue gas is that the outlet conduit of air preheater 9 is access to incinerator air compartment 6, high temperature
Caused high-temperature flue gas is sent to waste heat pot after flammable furnace gas carries out mixed combustion with the hot-air exported from air preheater 9
The gas approach of stove 8.The porch of waste heat boiler 8 can set baffle plate to ensure that flue gas flow is uniform according to flue gas flow field situation, waste heat pot
Stove 8 has been sequentially arranged front-packed evaporator, pendant superheater, convection superheater, evaporator, two-stage economizer and two-stage air preheat
Device etc., dust pelletizing system is sent into after waste heat boiler cools.Mixing wind tube all the way is provided with its air preheater exhaust pass, can
To ensure that the flue-gas temperature into sack cleaner is less than 180 DEG C, so as to increase the service life of cloth bag.In order to adapt to closed
The change of furnaceman's condition and incinerator or waste heat boiler plant maintenance do not influence the needs of environmental protection and closed vessel furnace production, can basis
Situation sets bypass pipe.
Flue gas purification system is mainly made up of sack cleaner 10, air-introduced machine 11 and chimney 12.Sack cleaner is protected by one
Temperature forms with filter, a pulse spraying equipment, an ash conveying device 13, one storage ash silo 14 and connecting line.Filter
Equably filter by, towards the dust in the flue gas passed through inside filter bag, then being entered outside filter bag by pulse spraying equipment to filter bag
Row automatic ash removing, ash conveying device 13 connect deduster bottom to collect the dust handled through sack cleaner.The dust warp of collection
Ash conveying device is transported to storage ash silo 14 and is used for storing dust.Air-introduced machine 11 is arranged between sack cleaner and chimney, air-introduced machine
Using fluid coupling or VFC rotation speed of fan.Chimney 12 uses reinforced concrete structure or steel design.
The closed vessel furnace furnace gas recovery of the present invention and the operating process of flue gas purification system are as follows：
Closed vessel furnace is being passed through caused by melting period more than 500 DEG C of flammable furnace gases of high temperature by the closed exhaust smoke hole of collecting hood 2
Adiabatic flue 3 is sent to incinerator combustion chamber, caused by from the cold air that air blower station comes after the heating of air preheater 9
Hot-air is sent to incinerator air compartment and carries out Hybrid Heating after-combustion, and by controlling the inlet damper regulation of control air blower station empty
Gas coefficient of excess, ensure fuel gas completely burned in incinerator burner hearth.Wherein closed vessel furnace furnace gas is as burning main fuel
With igniting thermal source, more than 800 DEG C high-temperature flue gas caused by after burning are sent into high after front-packed evaporator, pendant superheater in advance cooling
Warm superheater, low temperature superheater two-stage convection superheater, direct-contact desuperheater 18 are located among two-stage superheater, middle part arrangement convection current
Evaporator, afterbody interlaced arrangement two-stage economizer and two-stage air preheater.Flue gas exit temperature after waste heat boiler cools
At 180 DEG C or so, the qualified discharge of chimney 12 is sent into through air-introduced machine 11 after the dedusting of sack cleaner 10.
The ash-laden gas of heat boiler outlet by sack cleaner dedusting, ash-laden gas equably by outside filter bag towards filter
Bag is internal when passing through, dust by filter bag be trapped in outer surface and clean gas by filter bag, when filter bag outer surface dust layer thickness
Thicken, resistance can be by controlling starting impulse blowing device to use compressed air automatic ash removing when rising, and dust falls into bottom therewith
Portion's ash bucket is discharged into ash conveying device 13 after unloading ash, is then re-fed into storage ash silo 14, is then transported by truck.
Implementing the closed vessel furnace furnace gas recovery of the present invention and flue gas purification system, its efficiency of dust collection is high, typically exists
More than 99.5%, exit gas dust content is stable in 20mg/Nm3Below；Amount of steam withdrawn is high, the heat recovery of whole boiler
Utilization rate can reach more than 80%；As a result of the technique of dedusting after first burning, efficiency of dust collection is improved, pocket type is added and removes
The service life of dirt device filter bag, while the once equipment such as cooling and secondary cooling is also eliminated, save the equipment repeatedly cooled down
Substantial amounts of electric energy and cooling water are invested and saved, secondary pollution is avoided, protects environment.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of closed vessel furnace furnace gas recovery and cleaning treatment system, it is characterised in that：Including incinerator, waste heat boiler and flue gas
Dust pelletizing system, it is and pre- from air in the combustion chamber that the furnace gas come from closed collecting hood enters incinerator by adiabatic flue
Hot-air after hot device preheating is sufficiently mixed burning, and caused high-temperature flue gas, which enters, after burning carries out heat exchange drop in waste heat boiler
Entered after temperature in flue gas dust collecting system.
2. closed vessel furnace furnace gas recovery according to claim 1 and cleaning treatment system, it is characterised in that：The waste heat pot
Stove includes the front-packed evaporator being sequentially arranged from entrance, pendant superheater, convection superheater, counter flow evaporator, the first order and saves coal
Device and second level economizer, air preheater is between first order economizer and second level economizer.
3. closed vessel furnace furnace gas recovery according to claim 2 and cleaning treatment system, it is characterised in that：The second level
Economizer is connected by water pump with oxygen-eliminating device, and after demineralized water enters oxygen-eliminating device deoxygenation, second level economizer is sent to by water pump
In, subsequently into being heated in first order economizer, it is sent to after heating in drum, drum steams with front-packed evaporator and convection current respectively
Device connection is sent out, drum carries out carbonated drink Natural Circulation with front-packed evaporator and counter flow evaporator, is separated through drum water separator
The saturated vapor gone out is re-fed into after convection superheater is overheated and is sent to steam pipe system.
4. closed vessel furnace furnace gas recovery according to claim 1 and cleaning treatment system, it is characterised in that：The flue gas removes
Dirt system includes deduster, air-introduced machine and chimney, and the deduster includes insulation and filter, pulse spraying equipment, defeated ash
Device, storage ash silo and connecting line, flue gas are entered in deduster, by insulation with filter by the dust mistake in flue gas
Filter, automatic ash removing is then carried out to deduster by pulse spraying equipment, the ash conveying device is by connecting line by deduster
The dust of bottom is sent in storage ash silo；The top of deduster is connected by air-introduced machine with chimney, and flue gas is discharged from chimney.
5. closed vessel furnace furnace gas recovery according to claim 4 and cleaning treatment system, it is characterised in that：The air-introduced machine
Using fluid coupling or VFC rotation speed of fan, chimney uses reinforced concrete structure or steel design.
6. closed vessel furnace furnace gas recovery according to claim 1 and cleaning treatment system, it is characterised in that：The incinerator
Including combustion chamber, air compartment and burner hearth, incinerator uses regenerative combustion technology；The air preheater is connected with air blower, drum
Fan air inlet sets damper and screen pack.
7. closed vessel furnace furnace gas recovery according to claim 1 and cleaning treatment system, it is characterised in that：The waste heat pot
Stove is provided with ball deashing device and shockwave dust-blower.
8. closed vessel furnace furnace gas recovery according to claim 1 and cleaning treatment system, it is characterised in that：The waste heat pot
The porch of stove is provided with the baffle plate of regulation flue gas flow field.
9. closed vessel furnace furnace gas recovery according to claim 1 and cleaning treatment system, it is characterised in that：The air is pre-
Mixing wind tube is provided with the outlet of hot device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737324.2U CN207132737U (en) | 2017-06-23 | 2017-06-23 | A kind of closed vessel furnace furnace gas recovery and cleaning treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737324.2U CN207132737U (en) | 2017-06-23 | 2017-06-23 | A kind of closed vessel furnace furnace gas recovery and cleaning treatment system |
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| Publication Number | Publication Date |
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| CN207132737U true CN207132737U (en) | 2018-03-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220391A (en) * | 2019-07-05 | 2019-09-10 | 宝钢工程技术集团有限公司 | Exhaust gas utilization system and hot air smelting equipment |
| CN112344752A (en) * | 2020-11-04 | 2021-02-09 | 湖南森科有色金属有限公司 | New filter structure for dust collection in non-ferrous metal smelting |
| CN113566596A (en) * | 2021-07-26 | 2021-10-29 | 宁夏廷远活性炭有限公司 | Device and method for recycling waste heat of tail gas of activated carbon carbonization furnace |
-
2017
- 2017-06-23 CN CN201720737324.2U patent/CN207132737U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220391A (en) * | 2019-07-05 | 2019-09-10 | 宝钢工程技术集团有限公司 | Exhaust gas utilization system and hot air smelting equipment |
| CN110220391B (en) * | 2019-07-05 | 2024-11-19 | 宝钢工程技术集团有限公司 | Waste gas utilization system and hot air smelting equipment |
| CN112344752A (en) * | 2020-11-04 | 2021-02-09 | 湖南森科有色金属有限公司 | New filter structure for dust collection in non-ferrous metal smelting |
| CN113566596A (en) * | 2021-07-26 | 2021-10-29 | 宁夏廷远活性炭有限公司 | Device and method for recycling waste heat of tail gas of activated carbon carbonization furnace |
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