CN206652383U - A kind of hydrate continuously traps CO in cement kiln flue gas2Change system - Google Patents
A kind of hydrate continuously traps CO in cement kiln flue gas2Change system Download PDFInfo
- Publication number
- CN206652383U CN206652383U CN201720405842.4U CN201720405842U CN206652383U CN 206652383 U CN206652383 U CN 206652383U CN 201720405842 U CN201720405842 U CN 201720405842U CN 206652383 U CN206652383 U CN 206652383U
- Authority
- CN
- China
- Prior art keywords
- gas
- regenerator
- flue gas
- absorption tower
- heat
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
-
- 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
-
- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system, including tail exhaust blower, electric three passes air-valve, chimney, smoke eliminator, cooler, flue gas compressor, CO2Absorption tower regenerator unit, cold energy retracting device, used heat energy storage equipment, dewatering dryer, CO2Cooler, CO2Compressor, liquefaction CO2Storage tank, described CO2Absorption tower regenerator unit includes the CO being sequentially connected2Absorption tower, lean/rich liquid heat-exchanger rig, CO2Regenerator.The change system, based on cement producing line technical process and technological equipment, by the use of the waste heat in cement production process as the heat exchange energy, the CO in the flue gas of cement kiln is continuously trapped using hydrate accelerator2, while purifying smoke, realize the effect that efficiently and power consumption is low, investment is low, operating cost is low certainly.
Description
Technical field
It the utility model is related to environmentally friendly low-carbon technology field, and in particular to a kind of hydrate continuously traps cement kiln flue gas
Middle CO2Change system.
Background technology
Climate change has turned into one of the problem of influence human survival and development, and the carbon dioxide of industrial discharge is considered as
It is the main reason for causing climate warming.China is as developing country maximum in the world, the primary energy based on coal
Energy resource structure is used as with the secondary energy sources based on thermal power generation.With increasing rapidly for economic total volume, primary energy and secondary
The CO of the energy2Discharge, which has, increases the characteristics of fast, total amount is big, and current carbon emission reduction and CCS the or CCUS skills of reply climate change
The fortune economy of the trapping cost with high investment, high of art becomes the serious hindrance of popularization and application.Existing CCS or CCUS technologies
Research and Demonstration Application be concentrated mainly on and must separate except high concentration CO2Coal chemical industry, synthesis gas and coal electrical domain, and coal
Electrical domain concentrate on IGCC coal gasifications, integrated gas-steam combined cycle power plant (IGCC) technology application in.
Due to current maximum CO2It is mainly the power plant using coal as raw material to discharge point source, in CO2Trapping technique field or CCS
Technical elements are by CO2Capture technique method and system be referred to as pre-combustion capture, burning in trapping and post-combustion capture.
(1) pre-combustion capture：Mainly using IGCC coal gasifications, integrated gas-steam combined cycle power plant (IGCC) technology as base
Plinth, first by coal gasification, obtain CO and H2, then convert by vapor, CO switchs to CO2, then pass through separation or CO2Capture technique,
Respectively obtain the H of high concentration2And CO2, H2It can be exported using combustion power generation or as the carbon-free energy.Implement CO in IGCC technology2Catch
Collection will make energy resource consumption increase by 10~40%, ton CO2Cost is trapped up to 20~50 dollars, wherein CO2The trapping solution renewable sources of energy account for
60%.
(2) trapped in burning：Also known as oxygen-enriched combusting trapping technique, will be contained a large amount of in air first through using space division system
Nitrogen remove, obtain the O of high-purity2, then by high concentration O2Combustion system is introduced, beneficial to CO2Further capture and place
Reason, or using pure oxygen as combustion adjuvant, while in combustion to being pressurizeed in boiler so that the main component after burning in flue gas
For CO2And water, after separation water, the CO of such flue gas middle and high concentration2Gas can directly be compressed seizure.Oxygen-enriched combusting traps
Technology increases energy resource consumption 20~50%, ton CO in addition to investment is high, operating cost is high2Cost is trapped up to 50~90 dollars.
(3) post-combustion capture：Refer to and CO directly is implemented to the flue gas after power plant combustion2Separation and trapping, capturing device position
Downstream is discharged in power-plant flue gas, chemical absorption method, physisorphtion, membrane separation process, chemical chain partition method etc. can be divided into.Due to electricity
The CO of factory's discharge2Concentration is low, pressure is small, causes energy consumption and cost excessive, is still not suitable for large-scale promotion.
At present, CO2Trapping is CO2Separation and purification process, realized industrialized method, specifically included solvent absorption
Method, pressure swing adsorption method, membrane separation technique and low-temperature fractionation partition method etc., the big multipotency of these methods trap using clearance-type.
Wherein membrane separation technique be by each component in mixed gas in film infiltration rate difference and obtain separation methods, at present
For separating CO2Membrane material mainly have the polymer such as cellulose acetate, polysulfones, makrolon.For large-scale CO2Trapping
System, embrane method also have larger gap in cost and on reliability requirement.The general principle of pressure swing adsorption method (PSA) is to utilize
Adsorbent is different with the change of pressure to the adsorbance of gas with various, and the technology has that technical process is relatively easy, energy consumption compared with
It is low, CO can be removed and reclaimed from synthetic-ammonia transformation gas2.Low-temperature fractionation partition method therein is at low temperature will be each in gas
Kind of component condenses out according to technique and requirement, then with the way of distillation by wherein all kinds of materials according to evaporating temperature it is different one by one
Separated.This method CO suitable for natural gas2、H2S contents are higher, and with CO2When carrying out 3 oil recoveries, in produced gas
CO2There are the situations such as larger fluctuation in content and flow, and technological equipment investment expense is larger, and energy consumption is higher.Solvent absorption includes
Chemical absorption method, Physical Absorption method and physical chemistry absorption process, have proven to be current all CO2Technology among absorption process
It is most ripe, most widely used, and have and be appropriate for extensive CO2Catch the technical scheme of potentiality.But complex process is captured,
Investment is big, is also easy to produce secondary pollution and some solvents have toxicity, solvent needs regeneration to consume mass energy, traps cost
It is high.Brand-new, the efficient and economical and practical isolation technics that exploitation is different from conventional method shows important especially, and hydrate is a kind of
Emerging separation CO2Technology.
In CO2In the emerging technology research of trapping, clearance-type technological process hydrate trapping CO2Method is in coal electricity, coalification
Industrial and commercial bank industry CO2Trapping achievement in research cause concern.Wherein represent most advanced horizontal for Chinese Patent Application No.
201610462203.1 provide a kind of quick preparation CO2The technology of hydrate, is achieved through the following technical solutions：By amino acid
As CO2Hydrate accelerant, amino acid solution is obtained after water and amino acid are uniformly mixed；Amino acid solution is injected
In autoclave；High pressure CO is passed through into autoclave2Gas is reacted, and obtains the solid-state CO of high gas storage density2Hydration
Thing.The hydrate without serious secondary pollution caused by traditional chemiadsorption or physical and chemical adsorption method, but still in the presence of
Row problem：It need to be reacted a few hours under closed autoclave mesohigh stirring, and the reaction time of gas hydrate synthesis still mistake
It is long；Hydration reaction need to be carried out under electromagnetic agitation in closed high-pressure bottle, it is impossible to realize the CO in continuous absorption flue gas stream2；
The CO of production2It is bigger than normal to be compressed into the energy consumption of liquid, separates off-capacity.Flue gas (one of the existing hydrate for low concentration
As industrial furnace smoke) or IGCC synthesis gas separation and collections CO2It is inefficient, therefore, scientific worker propose hydration
Thing method implementing process is all that hydrate combines other methods, as hydrate combination membrane separation process, hydrate combine chemistry
The process integration of absorption method.In view of current actual techniques situation, to promote CCS technologies, there is an urgent need to one kind can be applied to one
As Industrial Stoves big flow flue gas continuously separate CO2Hydration accelerator and adaptable application process.
So far, though field of cement production worldwide has the low-carbon emission reduction problem for emphasizing cement production enterprise, not yet
See any specific collecting carbonic anhydride, closing and the research of application or practice report.And the actual production capacity of cement in China has exceeded
3500000000 tons, dry-process rotory kiln production line is a plurality of up to 1700.Cement production enterprise is generally acknowledged highly energy-consuming high pollution enterprise, is dioxy
Change one of primary discharge source of carbon, not only primary energy (coal) and secondary energy sources (electricity) consumption are big, and have largely discarded waste heat
And exhaust emissions, during fume environment protection qualified discharge in the waste gas of its discharge pollutant composition mostly fluctuation in CO212~
29%th, SO280~200mg/nm3、NOx100~400mg/nm3, 10~30mg/nm of dust3, and containing a small amount of hydrocarbon,
Fluorine chlorine compound and heavy metal, manufacture of cement synthesize because of its kiln gas composition of its process characteristic and property with coal chemical industry
Gas, natural gas, coal electricity flue gas or even IGCC gas have significant difference.The CO of manufacture of cement2Discharge can be divided into material carbon hydrochlorate
Decompose CO caused by the burning with fuel2Direct discharge and production process consumption external power etc. caused by indirectly
Discharge.According to China Building Material Scientific Research General Institute to China cement industry CO2Emission analysis, China's cement production process raw material
The CO of decomposition, fuel combustion and power consumption2Discharge capacity accounts for 59%, 26%, the 12% of manufacture of cement total release respectively, comprehensive
CO2Emission factor is 0.8045t/t, cement industry CO2Emission factor cement produced with the dry method is 0.867t/t.China's cement production capacity exceedes 35
Hundred million tons, thus infer the CO of China's cement industry2Annual emissions are up to 3,000,000,000 tons.It can be seen that China's cement production enterprise implements CO2Emission reduction is more
Urgent and necessity is highlighted, but because still missing is directed to the specific CO of cement kiln flue gas2The research and development of trapping technique, it is in addition existing
There is CO2The capacity limit that the high Cost Problems of trapping technique application can have been born far beyond cement production enterprise, and manufacture of cement
Because its kiln gas composition of its process characteristic and fluid properties and coal chemical industry synthesis gas, natural gas, coal electricity flue gas or even
IGCC gas has significant difference, for the thin cement industry of this personal value low (cement price is low) profit, so far there is not yet any cement
CO in kiln flue gas2Trapping and the specific research of application technology and practice report.
CN201110387163.6 discloses a kind of flue gas CO2Recovery process, comprise the steps：Flue gas first from
Bottom is washed into scrubbing tower, and the sewage after washing enters closing cooling recirculation system, and the flue gas after washing is compressed
Enter absorption tower after machine pressurization, the CO in flue gas2It is dissolved in MEA solution；Obtained CO2Rich solution send to First Heat Exchanger with
From regenerator come regeneration gas heat exchange, then enter back into the second heat exchanger with from regenerator lean solution heat exchange after, into regeneration
Tower spray carries out CO2Desorption；Obtained regeneration gas is sent into the first cooler through First Heat Exchanger and carries out gas-liquid separator, obtains pure
Net CO2, send out battery limit (BL)；This described technique it is increased closing cooling recirculation system include water cooling pond, hot-tub, cooling tower,
Heat-exchanger pump and water supply pump.Objectively secondary pollution is big for the technique MEA chemisorptions method, high energy consumption, does not apply to cement
Flue gas CO in production process2Trapping, has certain limitation.
To promote cement production enterprise energy-saving and emission-reduction, though cement production enterprise policy require to have built waste gas residual heat boiler and generate electricity system
System, but wherein more than 300 DEG C can only be typically utilized the characteristics of kiln hood due to existing application and the aqueous medium waste heat boiler of kiln tail
Waste gas residual heat, substantial amounts of 80 DEG C~300 DEG C of waste gas residual heat can not utilize and directly empty and cause thermal pollution, meanwhile, also have big
The high temperature heat radiation pollution of capital equipment-rotary kiln shell of other high-temperature services radiation waste heat such as manufacture of cement of amount, revolution
The high temperature section trunk temperature of kiln is up to 300 DEG C~500 DEG C, and low-temperature zone trunk temperature also up to 150 DEG C~300 DEG C, give birth to by these cement
The existing waste heat boiler of high-temperature service in production can not be used directly to produce high-temperature high-pressure steam.
CN201310278125.6 discloses a kind of system and device of cement kiln residual heat generating auxiliary carbon dioxide trapping, leads to
Used heat snorkel that kiln head boiler is provided with and low pressure steam pipe are crossed by cement kiln residual heat generating and monoethanolamine CO2Absorb two systems
Connect, form cogeneration auxiliary CO2Capturing device.Kiln tail and the high temperature steam pipe of two boilers of kiln hood are coupled to vapour
Turbine, the exhaust steam pipe of steam turbine are connected to condenser, and condensate returns to kiln tail by water pump and kiln head boiler recycles.Absorption tower
Bottom is provided with the import that the first solution pump is connected to heat exchanger low temperature side, and outlet is connected with Analytic Tower.Condensation is provided with the top of Analytic Tower
Device will contain CO2Absorbent solution parsing.Parsing tower bottom is provided with reboiler, using the low-pressure steam from kiln head boiler in tower
Solution carry out reheating.The device is using boiler recovery waste heat as the energy to CO in cement kiln waste gas2Trapping, it is substantial amounts of high
Warm high pressure waste heat does not utilize well, and degree of power conservation is not high, has certain limitation.
In summary, largely produce there is an urgent need to a kind of brand-new non-secondary pollution and using in cement production process
Discarded waste heat and can continuously trap the CO in cement kiln big flow flue gas2Change system.
Utility model content
In view of the shortcomings of the prior art, the utility model is necessary that providing a kind of hydrate continuously traps cement kiln flue gas
Middle CO2Change system, based on cement producing line technical process and technological equipment, utilize the waste heat in cement production process
As the heat exchange energy, the CO in the flue gas of cement kiln is continuously trapped using hydrate accelerator2, while purifying smoke, it is real
The now efficient and effect low, investment is low, operating cost is low that consumes energy certainly.
On the one hand, the purpose of this utility model is in the CO in providing a kind of hydrate and continuously trapping cement kiln flue gas2's
Change system, including CO2Absorption tower-regenerator unit, described CO2Absorption tower-regenerator unit includes the CO being sequentially connected2
Absorption tower, lean/rich liquid heat-exchanger rig, CO2Regenerator；
The CO2Absorption tower includes absorbing tower shell, and gas-liquid separation device, mist are disposed with the absorption tower shell
Change liquid-jet device, silk screen capture bed apparatus, cold energy switch, gas distribution and pumping equipment；The absorption tower case top is also set
There is N2Gas discharges pressure regulator valve；The N2Gas discharges pressure regulator valve and N2Gas outlet pipe road connects；The absorption tower housing bottom
Liquid outlet passes through rich solution fluid reservoir, rich solution pump and the rich solution inlet communication of lean/rich liquid heat-exchanger rig, the lean/rich liquid heat exchange dress
The rich solution outlet put connects with the first order atomization liquid-jet device of the Room of regenerator first；The absorption tower housing bottom air inlet with
The booster pump connection of smoke inlet pipe road；Smoke inlet pipe road booster pump is connected with smoke inlet pipe road；
The CO2Regenerator includes regeneration tower shell, regenerator second Room and the Room of regenerator first, the regenerator second
Room and the Room of regenerator first are arranged in regeneration tower shell；Silk screen demister, gas are disposed with the regeneration tower shell
Liquid separating apparatus, second level atomization liquid-jet device, first order atomization liquid-jet device, heat-exchange device, regenerator case top is also
Provided with CO2Air bleeding valve, the heat-exchange device are connected with thermal source；Regenerator the first Room bottom passes through circulation fluid fluid reservoir and circulation
Pump connects with the second level atomization liquid-jet device of regenerator second Room, and regenerator second Room bottom passes through poor liquid storage tank and lean pump
With the lean solution inlet communication of lean/rich liquid heat-exchanger rig, lean solution outlet and the atomization liquid-jet device of the lean/rich liquid heat-exchanger rig connect
It is logical；The CO2Air bleeding valve is connected with collection conduit；
The smoke inlet pipe road is connected with tail exhaust blower, electric three passes air-valve, chimney, and the electric three passes air-valve is set
On flue between the tail exhaust blower and chimney being connected with kiln tail deduster, the gas outlet of the tail exhaust blower with it is electronic
The air inlet of three-way air valve is connected, the first row gas port and CO of the electric three passes air-valve2Absorption tower-regenerator unit enters
Mouth is connected, and the second exhaust port of the electric three passes air-valve is connected with chimney；
The collection conduit is connected with CO2Cooler, CO2Compressor, liquefaction CO2Storage tank；The collection conduit and CO2It is cold
But device gas feed is connected, CO2Cooler outlet and CO2Compressor inlet is connected, CO2Compressor outlet and liquefaction CO2Storage
Tank import is connected；
The thermal source comes from used heat energy storage equipment, and the used heat energy storage equipment is will be different caused by cement producing line equipment
The discarded waste heat or high temperature heat of temperature carry out the device of accumulation of energy.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The smoke inlet pipe road is also associated with cooler, flue gas compressor；The first row gas port of the electric three passes air-valve and cooling
Device gas feed is connected, and the cooler gas outlet is connected with flue gas compressor import, the flue gas compressor outlet
Pass through smoke inlet pipe road and CO2The air inlet pipe road junction of absorption tower-regenerator unit is connected.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The change system also includes smoke eliminator, the first row gas port of the electric three passes air-valve and the cigarette of smoke eliminator
Gas import is connected, and the clean gas outlet of the smoke eliminator is connected with cooler gas import；Smoke eliminator
To remove contained SO in cement kiln flue gas2、NOx, chloride, fluoride, hydrocarbon, heavy metal and dust pollution thing simultaneously
Purification separation solid waste and the device of clean gas.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Equipment system
System, described smoke eliminator include oxidation, purification and aqueous vapor separation agent set, oxidizing decontamination agent atomizing sprayer, net
Change liquid circulating sprayer, sewage purification separator, the oxidizing decontamination agent atomizing sprayer and oxidation, purification and aqueous vapor
It is connected at the top of separation agent set, the scavenging solution circulating sprayer is separated with oxidation, purification and aqueous vapor in the middle part of agent set
It is connected；The bottom that the sewage purification separator separates agent set with oxidation, purification and aqueous vapor is connected, the sewage
The purification outlet of sewer of purification separation device connects with the purification wastewater inlet of scavenging solution circulating sprayer, the sewage purification
The solid outlet of separator is connected with external solid collection device.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
Discharge opeing choke valve is set between the absorption tower housing bottom liquid outlet and rich solution fluid reservoir.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The regenerator case top is additionally provided with the first temperature and pressure inductor；The absorption tower case top is additionally provided with the sensing of the second temperature and pressure
Device.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The N2Gas outlet pipe road is connected by cold energy retracting device with chimney；The cold energy retracting device and cold energy switch,
Cooler connects.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The collection conduit is also associated with dewatering dryer；The collection conduit is connected with dewatering dryer gas feed, described de-
Water drier gas vent and CO2Cooler gas import is connected.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
Described CO2Absorption tower-regenerator unit includes two sets of setting parallel with one another or covers CO more2Absorption tower-regenerator unit.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
Described CO2Absorption tower-regenerator unit includes being serially connected two sets of setting or covers CO more2Absorption tower-regenerator unit.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
Described CO2Absorption tower-regenerator unit includes three sets for being serially connected plus being arranged in parallel or covers CO more2Absorption tower-regenerator list
Member.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The thermal source comes from used heat energy storage equipment, and the used heat energy storage equipment can be the CO with trapping2For working medium, by the CO of trapping2Deposit
Storage is in liquid CO2In storage tank, the low-pressure liquid CO in tank is pumped out by high pressure2Fluid, low-pressure liquid CO2Fluid directly absorbs water
The discarded waste heat of different temperatures caused by mud apparatus for production line or high temperature heat accumulation of energy are converted into different temperatures, different pressures, no
The supercritical CO of co-energy density2The device of fluid.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The discarded waste heat or high temperature heat refer to refer to more than 300 DEG C of discarded waste heat caused by cement production process or high warm
100 DEG C~170 DEG C discarded waste heats, high-temperature services after energy, 100 DEG C~300 DEG C discarded waste heats, existing aqueous medium cogeneration
At least one of 150 DEG C~500 DEG C radiation or conduct waste heat the waste heat energy, can specifically show as producing in cement production process
100~500 DEG C of clinker cooling caused by the discarded waste heat of 100~500 DEG C of clinker cooling caused by raw kiln head cover, grate-cooler
800 DEG C~1500 DEG C of radiant heat in discarded waste heat, kiln head cover, 300 DEG C~1500 DEG C of radiant heat, rotary kiln trunk in grate-cooler
850 in 300 DEG C~500 DEG C of body high temperature section, the conduction of 150 DEG C~300 DEG C of rotary kiln shell low-temperature zone and radiant heat, tremie pipe~
150~180 discarded waste heat in 950 radiant heat, head row's dust-precipitator, 800~1200 DEG C of conduction and radiation in kiln tail smoke-box
In heat, preheater discharge flue discharge 80 DEG C after 80 DEG C~380 DEG C of discarded waste heat and existing aqueous medium Waste Heat Generation
At least one of~170 DEG C of discarded waste heats etc. the waste heat energy.
Further, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Change system,
The used heat energy storage equipment includes device body, fluid accumulating mechanism, suspension and support, non-return valve, regulating valve, safety valve, the stream
In the side wall or top plate that body accumulating mechanism is fixed in device body by suspension and support, the non-return valve is arranged on outside device body
Import with fluid accumulating mechanism is connected；The regulating valve and safety valve are arranged on the outlet of fluid accumulating mechanism；The stream
Body accumulating mechanism is heat exchanger, and the working media in heat exchanger is water or CO2Etc. the fluid of suitable heat exchange.The heat is handed over
Parallel operation can be the heat-resisting hollow pipe in pipe of box, board-like or disc type.Described device body can be kiln head cover, cooling
Electro-heat equipment in machine, rotary kiln shell, kiln tail smoke-box, tremie pipe, head row dust-precipitator, preheater etc. all cement plants.
The utility model is directed to cement producing line technological equipment feature, the tail exhaust blower after cement plant kiln tail dust-precipitator is gone out
Electric three passes air-valve is set on the flue between chimney, first continuously sent flue gas with the power of original tail exhaust blower
Enter oxidation, purification device, with oxidizing process etc. by the SO in flue gas2、NO2, chloride, fluoride, hydrocarbon, heavy metal and dust
Pollutant oxidation is converted into the removing of the solids such as sulfate, nitrate, villiaumite, villaumite, and solid waste caused by decontamination is from oxygen
The bottom discharge for changing clarifier is used as manufacture of cement or industrial chemicals recycling, cools down and presses through cooler after gas cleaning
The compression of contracting machine is continuously introduced into CO2Absorption tower-regenerator unit, through being the energy by CO using system waste heat2Absorption tower, lean/rich liquid change
Thermal, CO2The CO of regenerator composition2Absorption tower-regenerator unit continuously traps CO2。
CO2Absorption tower-regenerator unit is used as heat-exchange device in tower by the use of the discarded waste heat in cement production process
The energy, using the hydrate cement kiln flue gas CO of non-secondary pollution2Continuous capture method trapping CO2.Through CO2Absorption tower separates
The rich N of discharge2Air-flow is continuously introduced into chimney and directly discharged, or N is sent into compression2Holding vessel, through CO2Regenerator separation is discharged pure
CO2Air-flow is continuously introduced into drier dehydration by the drying of back segment, cooling, compression set negative-pressure ward.It is dehydrated CO2Gas is through CO2Cooling
Device cools down and compressor compresses are converted into liquid CO2It is sent into liquefaction CO2Storage tank stores.Dry ice such as processed for civilian use, medicament leaching, change
Work synthesis etc., or for CO2Engine/CO2Generating set is worked medium.
Specific trapping absorption process is as follows：Flue gas after purification is continuously introduced into CO under compressor effect2Absorption tower-again
In the absorption tower of raw tower unit, hydrate accelerant solution is continuously atomized and sprays into CO2Absorption tower, continuous capturing solidification CO2And even
Continuous discharge CO2Hydrate rich solution, and rich N is discharged in continuous separation2Gas stream；
The flue gas of entrance is forced to contact instead with hydrate accelerant solution Direct Uniform in the case where gas distribution acts on pumping equipment
Should, and prevent CO2Hydrate solids cause possible blocking；The cooling of cold energy switch removes the heat energy in flue gas, can also connect
It is continuous to strengthen a large amount of combination heats for removing and being released in hydration reaction, maintain 0.1013~1.5MPa of tower pressure interior force (being selected depending on feelings), temperature
It is beneficial to CO in continuous flue gas stream under the temperate condition of 0 DEG C~20 DEG C of degree (being selected depending on feelings)2Efficient seizure and CO2Hydrate it is fast
Speed is formed；
It is in countless droplets in the form of atomizing spray that hydrate accelerant solution, which is atomized spray equipment, and silk screen captures bed
Device is provided with the screen net structure of horizontal/vertical/tilting, and flue gas is forced to sexually revise gas operation rail after entering silk screen capture bed apparatus
Mark and state and the liquid film and film bubble that large amount of complex is produced with droplet, with the hydrate accelerant solution of extra specific surface area with
CO in flue gas2Fully contact, rapidly and efficiently reacts；The silk screen that big silk screen space pass is set makes the CO in flue gas2Make in nucleation induction
Countless CO is quickly formed with lower2Hydrate nucleus, nucleus countless in whole silk screen bed large space is promoted quickly to be caught with liquid film
Catch the CO in flue gas stream2；Absorption tower intrinsic pressure, temperature is maintained to realize continuous CO with the cold energy cooling of cooling device2Efficiently catch
Catch and CO2The quick formation of hydrate；The CO of formation2Hydrate continuously collects with liquid stream to tower lower area, the CO collected2Water
Compound rich solution is continuously discharged through discharge opeing choke valve.
Specific collecting regenerated process is as follows：CO2Hydrate rich solution in lean/rich liquid heat-exchanger rig with CO2Hydrate lean solution is entered
After the preheating of row heat exchange, the mode of spray is taken to be sent into the Room of regenerator first, the little particle of atomizing spray is filled by heat exchange
Collect again in the first Room of regenerator bottom after the Multi-stage heating release carbon dioxide put, by the effect of circulating pump again with mist
Change the mode of spray and carbon dioxide is discharged by the Multi-stage heating of heat-exchange device in regenerator second Room, the two of efficient removal
Carbonoxide removes water after the gas-liquid separation device at the top of regenerator implements gas and liquid separation, then through silk screen demister
Continuous discharge regenerator after point；The lean solution of carbon dioxide removal is continuously discharged from the outlet of regenerator second Room bottom of towe, recovery heat
Can Posterior circle utilization.
Compared with prior art, the beneficial effect of technical solutions of the utility model：
1) cement producing line technological equipment feature is combined, a kind of creative hydrate that develops continuously traps cement
CO in kiln flue gas2Change system, the system trapped using the hydrate of non-secondary pollution, is hydrated by atomizing spray
Thing accelerator solution and the efficiency of silk screen nucleation increase reaction, make CO2Trapping it is more complete, reaction is more thorough, during reaction
Between it is ofer short duration；CO is controlled by cold energy recycle2Pressure and temperature during absorption capture, passes through absorption tower and regenerator
Be provided separately etc., solve current hydrate trapping CO2Technique can only intermittence it is high-pressure sealed trapping (and needing to stir) and
The technical barrier that can not continuously trap；And process is simple, investment is smaller, industrially applicable.
2) a large amount of waste heats in cement production process are absorbed using the used heat energy storage equipment of system of the present utility model and is used as CO2
The energy of trapping, and the cold energy and heat circulation of technical process are taken full advantage of, and make use of existing in cement production process
The installations and facilities of normal operation such as chimney of kiln tail blower fan, 70 reinforcements etc., using its normal power consumption as major impetus, makes
Obtain cement kiln flue gas CO2The newly-increased energy consumption of trapping whole system is extremely low, and operation cost is low, economical, breaches existing CCS skills
Art system includes CO in IGCC system2The with high investment of trapping, high energy consumption, the bottleneck of high cost.
3) purification process also uses atomizing spray, and scavenging solution circulated sprinkling, by spray cleaning twice so that flue gas is net
Change degree is obviously improved, while the accessory substance reusable edible purified；The system of use realizes that cement producing line flue gas cleaningization is arranged
Put, throw away the cap of cement production enterprise high pollution, the effective emission reduction and low-carbon production of cement production enterprise can be achieved.
4) the used heat energy storage equipment of device systems of the present utility model uses original device in production equipment to be improved,
Production improving cost can be greatly reduced, and can effectively utilize all kinds of high-temperature residual heats in production process, realization effectively utilizes cement
All kinds of used heat and radiant heat in production process, the pollution that the strong heat radiation of working environment is brought is reduced, realizes heat circulation
Utilize, the CO of trapping2Production is used by oneself or export trade.
5) device systems of the present utility model can be greatly decreased in cement production process to caused by environment waste gas, waste water,
Used heat and dust pollution, effectively realize the emission reduction and low-carbon production of manufacture of cement.Nonflammable and carbon dioxide is nontoxic, density is high
And thermal capacitance is high, circulating repetition utilization can be reclaimed, the pollution-free and saving energy, job stability is high, service life length, practicality
By force, it is environment-friendly.
Brief description of the drawings
Fig. 1 is that the hydrate described in embodiment 1 continuously traps CO in cement kiln flue gas2Change system structural representation
Figure.
Fig. 2 is that the hydrate described in embodiment 2 continuously traps CO in cement kiln flue gas2Change system structural representation
Figure.
Fig. 3 is that the hydrate described in embodiment 3 continuously traps CO in cement kiln flue gas2Change system structural representation
Figure.
Fig. 4 is CO2The structural representation of absorption tower-regenerator unit.
Fig. 5 is that the hydrate described in embodiment 4 continuously traps CO in cement kiln flue gas2Change system structural representation
Figure.
Fig. 6 is the structural representation of used heat energy storage equipment.
Embodiment
The utility model is further described with specific embodiment below, but the utility model is not by following embodiments
Restriction.Those skilled in the art can use for reference present disclosure, be suitably modified technological parameter realization.In particular,
All similar replacements and change are apparent to those skilled in the art, and they are considered as being included in this practicality
It is new.Method of the present utility model and application are described by preferred embodiment, and related personnel can substantially not take off
Method described herein and application are modified or suitably changed with combining from the utility model content, spirit and scope,
To realize and using the utility model technology.
Embodiment 1
As shown in Fig. 1,4,6, the utility model provides a kind of hydrate and continuously traps CO in cement kiln flue gas2Equipment
System, mainly include tail exhaust blower 1, electric three passes air-valve 2, chimney 3, smoke eliminator 4, cooler 5, flue gas compressor 6,
CO2Absorption tower-regenerator unit 7, cold energy retracting device 8, used heat energy storage equipment 9, dewatering dryer 10, CO2Cooler 11, CO2
Compressor 12, liquefaction CO2Storage tank 13, described electric three passes air-valve 2 be arranged at the tail exhaust blower 1 that is connected with kiln tail deduster and
On flue between chimney 3, the gas outlet of tail exhaust blower 1 is connected with the air inlet of Electric air valve 2, electric three passes air-valve
2 first row gas port is connected with the gas approach of smoke eliminator 4, second exhaust port and the chimney 3 of electric three passes air-valve 2
It is connected, the clean gas outlet of smoke eliminator 4 is connected with the gas feed of cooler 5, the gas vent of cooler 5 and flue gas
The import of compressor 6 is connected, and flue gas compressor 6 exports and CO2The air inlet pipe road junction of absorption tower-regenerator unit 7 is connected, CO2
The rich N of absorption tower-regenerator unit 72Outlet of the discharge line through pressure regulator valve is connected with the air inlet of cold energy retracting device 8,
The gas outlet of cold energy retracting device 8 is connected with chimney 3, CO2The CO of absorption tower-regenerator unit 72Discharge line is exported and taken off
The gas feed of water drier 10 is connected, CO2The heat exchanging pipe import of absorption tower-regenerator unit 7 and used heat energy storage equipment 9
Medium pipeline outlet be connected, the medium pipeline import of used heat energy storage equipment 9 and CO2The heat friendship of absorption tower-regenerator unit 7
Change pipe outlet to be connected, the gas vent of dewatering dryer 10 and CO2The gas feed of cooler 11 is connected, CO2Cooler 11 goes out
Mouth and CO2The import of compressor 12 is connected, CO2Compressor 12 exports and liquefaction CO2The import of storage tank 13 is connected.
Wherein, described smoke eliminator 4 is contained SO in removing cement kiln flue gas2、NOx, chloride, fluoride,
Hydrocarbon, heavy metal and dust pollution thing and purification separation solid waste and the device of clean gas, for oxidizing process by cement
Contained SO in kiln gas2, NOx, chloride, fluoride, hydrocarbon, heavy metal oxidation be cured as sulfate, nitric acid
The solid waste such as salt, villiaumite, villaumite, cement kiln flue gas is through removing fluorine, chlorine, sulphur, nitre, hydrocarbon and a huge sum of money therein
After category and dust pollution thing, obtain containing N2、CO2And O2Mixing purifying smoke deliver to cooler 5 from clean gas outlet；It is described cold
But the gas vent of device 5 is connected with the import of flue gas compressor 6, and the outlet of flue gas compressor 6 passes through smoke inlet pipe road and CO2
The air inlet pipe road junction of absorption tower-regenerator unit 7 is connected.Effect through flue gas compressor 6, the flue gas by purification is pushed
To CO2Absorption tower-regenerator unit 7, carry out CO2Separation absorption, enrichment.
Smoke eliminator 4 separates agent set 401, oxidizing decontamination agent atomizing sprayer with aqueous vapor including oxidation, purification
402nd, scavenging solution circulating sprayer 403, sewage purification separator 404, the oxidizing decontamination agent atomizing sprayer 402 with
Oxidation, purification separates the top of agent set 401 with aqueous vapor and is connected, the scavenging solution circulating sprayer 403 and oxidation, purification with
The middle part of aqueous vapor separation agent set 401 is connected；The sewage purification separator 404 separates main body with oxidation, purification with aqueous vapor
The bottom of device 401 is connected, purification outlet of sewer and the scavenging solution circulating sprayer of the sewage purification separator 404
403 purification wastewater inlet connection, the solid outlet of the sewage purification separator 404 connect with external solid collection device
Connect.The sewage purification separator 404 will isolate solid waste caused by gas cleaning and discharge, and the sewage of purification is turned
To the reuse of scavenging solution circulating sprayer 403, effectively realize includes solid waste and purification by the discarded object for handling flue gas
Sewage is handled, separated and recycled, and environmental protection simultaneously, saves the energy.
Described CO2Absorption tower-regenerator unit 7 includes the CO being sequentially connected2Absorption tower 7A, lean/rich liquid heat-exchanger rig
7B、CO2Regenerator 7C；The CO2Absorption tower 7A includes absorbing tower shell 7A1, in the absorption tower shell 7A1 from top to bottom according to
It is secondary to be provided with gas-liquid separation device 7A2, atomization liquid-jet device 7A3, silk screen capture bed apparatus 7A4, cold energy switch 7A5, cloth
Gas and pumping equipment 7A6；The absorption tower case top is additionally provided with second temperature and pressure inductor 7A8, N2Gas discharges pressure regulator valve
7A9；The N2Gas discharge pressure regulator valve 7A9 and N2Gas outlet pipe road connects；The N2Reclaimed by cold energy in gas outlet pipe road
Device 8 is connected with chimney 3；Rich N2Gas directly through smoke stack emission, the cold energy retracting device 8 and cold energy switch 7A5,
Cooler 5 connects；The absorption tower shell 7A1 bottom liquid outlets pass through rich solution fluid reservoir 7A701, rich solution pump 7A7 and lean/rich liquid
Heat-exchanger rig 7B rich solution inlet communication, the rich solution outlet of the lean/rich liquid heat-exchanger rig 7B and the first of the Room of regenerator first
Level atomization liquid-jet device 7C5 connections；The absorption tower shell 7A1 bottom air inlets connect with smoke inlet pipe road booster pump 7A601
It is logical；Discharge opeing choke valve 7A602 is set between absorption tower shell 7A1 bottom liquid outlets and the rich solution fluid reservoir 7A701；The flue gas
Admission line booster pump 7A601 is connected with smoke inlet pipe road；The CO2Regenerator 7C includes regeneration tower shell 7C1, regenerator
Second Room and the Room of regenerator first, the regenerator second Room and the Room of regenerator first are arranged in regeneration tower shell 7C1；It is described
Silk screen demister 7C2, gas-liquid separation device 7C3, second level atomization spray are disposed with regeneration tower shell 7C1 from top to bottom
Liquid device 7C4, first order atomization liquid-jet device 7C5, heat-exchange device 7C6, regeneration tower shell 7C1 tops are additionally provided with CO2Exhaust
Valve 7C10, the heat-exchange device 7C6 are connected with thermal source；Regenerator the first Room bottom is by circulation fluid fluid reservoir 7C701 and follows
Ring pump 7C7 connects with the second level atomization liquid-jet device 7C4 of regenerator second Room, and regenerator second Room bottom passes through poor liquid storage tank
7C801 and lean pump 7C8 and lean/rich liquid heat-exchanger rig 7B lean solution inlet communication, the lean solution of the lean/rich liquid heat-exchanger rig 7B
Outlet connects with atomization liquid-jet device 7A3；The CO2Air bleeding valve 7C10 is connected with collection conduit.
Above-mentioned CO2Pass through blower pump for pipeline 7A601, N in the 7A of absorption tower2Gas discharge pressure regulator valve 7A9, discharge opeing choke valve
7A602 control pressures are 0.1~1.5Mpa, effectively realize the normal work of whole system；Pass through heat-exchange device 7A5 cold Jie
It is 1 DEG C~20 DEG C that matter flow valve, which controls the temperature in absorption tower,.Cold energy retracting device 8 is placed in CO2At the top of the 7A of absorption tower, cold energy
The import of retracting device 8 and N2Gas discharge pressure regulator valve 7A9 outlet, the outlet of cold energy retracting device 8 connect with chimney,
Cold energy retracting device 8 is used to reclaim CO2Absorption tower 7A discharges N2When the cold energy taken out of, the cold energy of recovery supplies refrigerator 5 or absorption tower
Cold energy switch 7A5 is recycled；Used heat energy storage equipment 9 refers to the storage of caused waste gas residual heat in energy accumulation cement production process
Can device.
The collection conduit is connected with dewatering dryer 10, CO2Cooler 11, CO2Compressor 12, liquefaction CO2Storage tank 13；
The gas vent of dewatering dryer 10 and CO2The gas feed of cooler 11 is connected, CO2Cooler 11 exports and CO2Compressor
12 imports are connected, CO2Compressor 12 exports and liquefaction CO2The import of storage tank 13 is connected.Separate the pure CO of discharge2Air-flow is rear
Dewatering dryer 10, the CO of section2Cooler 11, CO2Compressor 12 is dried, cools down successively, compress after, be converted into liquid CO2
It is sent into liquefaction CO2Storage tank 13 stores.So that the utility model is developed with reference to cement producing line technological equipment feature,
The purifying discharge of cement producing line flue gas can not only be realized, without secondary pollution, realizes effective emission reduction of cement production enterprise and low
Carbon produces, and solves the direct exhaust emission environment of existing cement industry flue gas and existing CO2Catching apparatus is also easy to produce two
The problem of secondary pollution, and equipment configuration is simpler, and investment is small, industrially applicable, suitable for promoting the use of, solves existing
CO2Catching apparatus complex process, investment is big, the problem of being not easy to promote the use of.
The utility model using the blast of the air blast transmission of tail exhaust blower 1 as normal pressure, using the negative-pressure ward masterpiece of chimney 3 as richness
N2The power of side, using the negative-pressure ward masterpiece of flue gas compressor 7 as rich CO2The power of side, takes full advantage of in cement production process
The installations and facilities of these existing normal operations such as the high chimney 3 of tail exhaust blower 1, more than 70 rice, utilize its normal power consumption
As major impetus so that the newly-increased energy consumption of the whole change system of the utility model is extremely low, so as to reduce operation cost, breaches
Existing CCS technological systems include CO in IGCC system2The with high investment of trapping, high energy consumption, the bottleneck of high cost, it is economical,
Solves existing CO2Catching apparatus high energy consumption, the problem of operation cost is big.
The utility model is carrying out cement kiln flue gas purification and CO2During trapping, the electric T-shaped valve 2 is controlled to connect described
Flue gas oxidation, purification device 4, the chimney 3 is closed, to ensure that the stable of system interior air-flow circulates.When the utility model does not work
When, the electric T-shaped valve 2 can be controlled to connect the chimney 3, be easy to the maintenance of chimney 3.
Further, the used heat energy storage equipment 9 is the useless of different temperatures caused by direct absorption cement producing line equipment
Abandon waste heat or high temperature heat carries out the device of accumulation of energy.Caused by the discarded waste heat or high temperature heat refer in cement production process
100~500 DEG C of clinker cooling is discarded caused by the discarded waste heat of 100~500 DEG C of clinker cooling caused by kiln head cover, grate-cooler
800 DEG C~1500 DEG C of radiant heat in waste heat, kiln head cover, 300 DEG C~1500 DEG C of radiant heat, rotary kiln shell are high in grate-cooler
850~950 in 300 DEG C~500 DEG C of temperature section, the conduction of 150 DEG C~300 DEG C of rotary kiln shell low-temperature zone and radiant heat, tremie pipe
Radiant heat, 150~180 discarded waste heat in head row's dust-precipitator, 800~1200 DEG C of conduction and radiant heat in kiln tail smoke-box,
In preheater discharge flue discharge 80 DEG C after 80 DEG C~380 DEG C of discarded waste heat and existing aqueous medium Waste Heat Generation~
At least one of 170 DEG C of discarded waste heats etc. the waste heat energy.The used heat energy storage equipment 9 includes device body 91, fluid accumulation of energy
Mechanism 92, suspension and support 93, non-return valve 94, regulating valve 95, safety valve 96, the fluid accumulating mechanism 92 are fixed by suspension and support 93
In side wall or top plate in device body 91, the non-return valve 94 is arranged on that device body 91 is outer and fluid accumulating mechanism 92
Import is connected；The regulating valve 95 and safety valve 96 are arranged on the outlet of fluid accumulating mechanism 92；The fluid accumulating mechanism
92 be heat exchanger, and the working media in heat exchanger is CO2Fluid, water etc. can be used for the fluid of heat exchange.Pass through high-pressure pump
Send device that fluid is continuously pressed into fluid accumulating mechanism 92 through non-return valve 94, by heat exchange directly with absorption of fluids accumulation high temperature
Heat energy, because the working environment of device body 91 is different, it can be used for the waste heat of conversion and radiant heat is also had any different, therefore formed
The hot supercritical fluid of high pressure is fluctuation, the hot supercritical fluid of the high pressure of different temperatures and different heat densities, subsequently may be used
Consider that access flow straightener is converted into the fluid of isothermal and isobaric.The used heat energy storage equipment 9 can make full use of manufacture of cement
During discarded waste heat, solve existing waste gas residual heat boiler electricity generation system can only utilize wherein more than 300 DEG C discard
Waste heat, the waste gas residual heat of other substantial amounts of temperature can not utilize and directly empty the problem of polluting.
Embodiment 2
Fig. 2 is that the hydrate described in embodiment 2 continuously traps CO in cement kiln flue gas2Change system structural representation
Figure.
As shown in Fig. 2,4,6, the present embodiment 2 and the difference of embodiment 1 are：Also include another CO2Absorption tower-again
Raw tower unit 7 '；Another CO2Absorption tower-regenerator unit 7 ' and the CO in embodiment 12Absorption tower-regenerator unit 7
Structure is identical, including CO2Absorption tower 7A ', lean/rich liquid heat-exchanger rig 7B ', CO2Regenerator 7C '；Another CO2Absorption tower-again
Raw tower unit 7 ' is with also having a used heat energy storage equipment 9 ' to provide required energy, another CO2Absorption tower-regenerator unit
7 ' and CO2Absorption tower-regenerator unit 7 is arranged in parallel；Can be doubled rich CO2The treating capacity of flue gas, effectively improves CO2Collect effect
Rate.
Embodiment 3
Fig. 3 is that the hydrate described in embodiment 3 continuously traps CO in cement kiln flue gas2Change system structural representation
Figure.
As shown in Fig. 3,4,6, the present embodiment 3 and the difference of embodiment 1 are：Also include another CO2Absorption tower-again
Raw tower unit 7 "；Another CO2Absorption tower-regenerator unit 7 " and the CO in embodiment 12Absorption tower-regenerator unit 7
Structure is identical, including CO2Absorption tower 7A ", lean/rich liquid heat-exchanger rig 7B ", CO2Regenerator 7C "；Another CO2Absorption tower-again
Raw tower unit 7 " is with also having a used heat energy storage equipment 9 " to provide required energy, another CO2Absorption tower-regenerator unit
7 " and CO2Absorption tower-regenerator unit 7 is arranged in series, and can effectively improve CO2The purity of collection.
Embodiment 4
Fig. 5 is that the hydrate described in embodiment 4 continuously traps CO in cement kiln flue gas2Change system structural representation
Figure.
As shown in figure 5, the present embodiment 4 and the difference of embodiment 1 are：Lack smoke eliminator 4.The equipment system
System is carrying out CO2During trapping, CO is directly entered without the flue gas of purification2Absorption tower-regenerator unit 7 is handled, together
Sample can be realized effectively to CO2Continuous trapping.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of hydrate continuously traps CO in cement kiln flue gas2Change system, it is characterised in that including CO2Absorption tower-
Regenerator unit, described CO2Absorption tower-regenerator unit includes the CO being sequentially connected2Absorption tower, lean/rich liquid heat-exchanger rig,
CO2Regenerator；
The CO2Absorption tower includes absorbing tower shell, and gas-liquid separation device, atomization spray are disposed with the absorption tower shell
Liquid device, silk screen capture bed apparatus, cold energy switch, gas distribution and pumping equipment；The absorption tower case top is additionally provided with N2
Gas discharges pressure regulator valve；The N2Gas discharges pressure regulator valve and N2Gas outlet pipe road connects；The absorption tower housing bottom goes out liquid
Mouthful by rich solution fluid reservoir, the rich solution inlet communication of rich solution pump and lean/rich liquid heat-exchanger rig, the lean/rich liquid heat-exchanger rig
Rich solution outlet connects with the first order atomization liquid-jet device of the Room of regenerator first；The absorption tower housing bottom air inlet and flue gas
Admission line booster pump connects；Smoke inlet pipe road booster pump is connected with smoke inlet pipe road；
The CO2Regenerator includes regeneration tower shell, regenerator second Room and the Room of regenerator first, the regenerator second Room and
The Room of regenerator first is arranged in regeneration tower shell；Silk screen demister, gas-liquid point are disposed with the regeneration tower shell
From device, second level atomization liquid-jet device, first order atomization liquid-jet device, heat-exchange device, regenerator case top is additionally provided with
CO2Air bleeding valve, the heat-exchange device are connected with thermal source；Regenerator the first Room bottom by circulation fluid fluid reservoir and circulating pump with
The second level atomization liquid-jet device connection of regenerator second Room, regenerator second Room bottom by poor liquid storage tank and lean pump with
The lean solution inlet communication of lean/rich liquid heat-exchanger rig, lean solution outlet and the atomization liquid-jet device of the lean/rich liquid heat-exchanger rig connect
It is logical；The CO2Air bleeding valve is connected with collection conduit；
The smoke inlet pipe road is connected with tail exhaust blower, electric three passes air-valve, chimney, the electric three passes air-valve be arranged at
On flue between kiln tail deduster connected tail exhaust blower and chimney, the gas outlet of the tail exhaust blower and electric three passes
The air inlet of air-valve is connected, the first row gas port and CO of the electric three passes air-valve2Absorption tower-regenerator unit inlet is connected
Logical, the second exhaust port of the electric three passes air-valve is connected with chimney；
The collection conduit is connected with CO2Cooler, CO2Compressor, liquefaction CO2Storage tank；The collection conduit and CO2Cooler gas
Body import is connected, CO2Cooler outlet and CO2Compressor inlet is connected, CO2Compressor outlet and liquefaction CO2Storage tank import
It is connected；
The thermal source comes from used heat energy storage equipment, and the used heat energy storage equipment is by different temperatures caused by cement producing line equipment
Discarded waste heat or high temperature heat carry out accumulation of energy device.
2. a kind of hydrate according to claim 1 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, the smoke inlet pipe road is also associated with cooler, flue gas compressor；The first row gas port of the electric three passes air-valve with
Cooler gas import is connected, and the cooler gas outlet is connected with flue gas compressor import, the flue gas compressor
Outlet passes through smoke inlet pipe road and CO2The air inlet pipe road junction of absorption tower-regenerator unit is connected.
3. a kind of hydrate according to claim 2 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, the change system also includes smoke eliminator, and first row gas port and the gas cleaning of the electric three passes air-valve fill
The gas approach put is connected, and the clean gas outlet of the smoke eliminator is connected with cooler gas import；Flue gas is net
Makeup, which is set to, removes contained SO in cement kiln flue gas2、NOx, chloride, fluoride, hydrocarbon, heavy metal and dust it is dirty
Contaminate thing simultaneously purification separation solid waste and the device of clean gas.
4. a kind of hydrate according to claim 3 continuously traps CO in cement kiln flue gas2Change system, its feature
Be, described smoke eliminator include oxidation, purification and aqueous vapor separation agent set, oxidizing decontamination agent atomizing sprayer,
Scavenging solution circulating sprayer, sewage purification separator, the oxidizing decontamination agent atomizing sprayer and oxidation, purification and water
From being connected at the top of agent set, the scavenging solution circulating sprayer separates in agent set qi leel with oxidation, purification and aqueous vapor
Portion is connected；The bottom that the sewage purification separator separates agent set with oxidation, purification and aqueous vapor is connected, the dirt
The purification outlet of sewer of Water warfare separator connects with the purification wastewater inlet of scavenging solution circulating sprayer, and the sewage is net
The solid outlet for changing separator is connected with external solid collection device.
5. a kind of hydrate according to claim 1 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, discharge opeing choke valve is set between the absorption tower housing bottom liquid outlet and rich solution fluid reservoir.
6. a kind of hydrate according to claim 1 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, the regenerator case top is additionally provided with the first temperature and pressure inductor；The absorption tower case top is additionally provided with the second temperature and pressure
Inductor.
7. a kind of hydrate according to claim 2 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, the N2Gas outlet pipe road is connected by cold energy retracting device with chimney；The cold energy retracting device exchanges with cold energy
Device, cooler connection.
8. a kind of hydrate according to claim 1 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, the collection conduit is also associated with dewatering dryer；The collection conduit is connected with dewatering dryer gas feed, institute
State dewatering dryer gas vent and CO2Cooler gas import is connected.
9. a kind of hydrate according to claim 1 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, described CO2Absorption tower-regenerator unit includes two sets of setting parallel with one another or covers CO more2Absorption tower-regenerator list
Member, it is serially connected two sets of setting or covers CO more2Absorption tower-regenerator unit or be serially connected plus be arranged in parallel three sets or
More set CO2Absorption tower-regenerator unit.
10. a kind of hydrate according to claim 1 continuously traps CO in cement kiln flue gas2Change system, its feature
It is, the discarded waste heat or high temperature heat refer to discarded waste heat or high temperature caused more than 300 DEG C in cement production process
100 DEG C~170 DEG C discarded waste heats, high-temperature services after heat energy, 100 DEG C~300 DEG C discarded waste heats, existing aqueous medium cogeneration
At least one of 150 DEG C~500 DEG C radiation or conduct waste heat the waste heat energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405842.4U CN206652383U (en) | 2017-04-18 | 2017-04-18 | A kind of hydrate continuously traps CO in cement kiln flue gas2Change system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405842.4U CN206652383U (en) | 2017-04-18 | 2017-04-18 | A kind of hydrate continuously traps CO in cement kiln flue gas2Change system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206652383U true CN206652383U (en) | 2017-11-21 |
Family
ID=60317723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720405842.4U Active CN206652383U (en) | 2017-04-18 | 2017-04-18 | A kind of hydrate continuously traps CO in cement kiln flue gas2Change system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206652383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823754A (en) * | 2017-04-18 | 2017-06-13 | 长沙紫宸科技开发有限公司 | A kind of hydrate continuously traps CO in cement kiln flue gas2Change system |
| CN107754568A (en) * | 2017-11-28 | 2018-03-06 | 沈建冲 | A kind of device and gas recovery process of low energy consumption flue gas trapping and recovering carbon dioxide |
| CN113117504A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy recovery type hydrate method |
-
2017
- 2017-04-18 CN CN201720405842.4U patent/CN206652383U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823754A (en) * | 2017-04-18 | 2017-06-13 | 长沙紫宸科技开发有限公司 | A kind of hydrate continuously traps CO in cement kiln flue gas2Change system |
| CN106823754B (en) * | 2017-04-18 | 2023-04-04 | 长沙紫宸科技开发有限公司 | Hydrate method for continuously capturing CO in cement kiln flue gas 2 Is equipped with a system |
| CN107754568A (en) * | 2017-11-28 | 2018-03-06 | 沈建冲 | A kind of device and gas recovery process of low energy consumption flue gas trapping and recovering carbon dioxide |
| CN107754568B (en) * | 2017-11-28 | 2020-08-07 | 沈建冲 | Low-energy-consumption device for capturing and recovering carbon dioxide by flue gas and gas recovery process |
| CN113117504A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy recovery type hydrate method |
| CN113117504B (en) * | 2019-12-31 | 2023-03-28 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy recovery type hydrate method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106823754A (en) | A kind of hydrate continuously traps CO in cement kiln flue gas2Change system | |
| CN106955569B (en) | A kind of hydrate continuously traps CO in cement kiln flue gas2Method | |
| JP5945333B2 (en) | Carbon dioxide recovery method and apparatus for power plant flue gas | |
| KR101518477B1 (en) | Method and apparatus for capturing carbon dioxide in flue gas with activated sodium carbonate | |
| CN104107629B (en) | A kind of smoke carbon dioxide capture system and capture method | |
| CN106914116B (en) | A method of being adapted to collecting carbonic anhydride and power generation in cement kiln flue gas | |
| CN201333374Y (en) | Device capable of collecting carbon dioxide contained in flue gases of power plant through ammonia by utilizing void tower | |
| CN111203086B (en) | A CO2 capture system with low regeneration energy consumption and low pollutant emission | |
| CN102218261B (en) | Method and equipment for collecting carbon dioxide from fuel gas by using ammonia water fine spraying | |
| CN106914117B (en) | A device suitable for continuous capture and power generation of carbon dioxide in the flue gas of cement kilns | |
| CN110508057A (en) | Exhaust gas purifying method and system in a kind of lithium battery removal process | |
| CN109126392B (en) | A device and process for capturing CO2 in flue gas using ionic liquid | |
| CN206823510U (en) | One kind CO suitable for cement kiln flue gas2The change system continuously trapped | |
| CN101708414A (en) | System and method for desulphurizing waste gas by cyclic absorption and application thereof | |
| CN107115776A (en) | One kind CO suitable for cement kiln flue gas2The change system continuously trapped | |
| CN206652383U (en) | A kind of hydrate continuously traps CO in cement kiln flue gas2Change system | |
| CN202387354U (en) | Equipment for capturing carbon dioxide in flue gas of power station and with high efficiency and low energy consumption | |
| CN212166984U (en) | CO2Trapping system | |
| CN105749728A (en) | Carbon dioxide trapping method and device thereof | |
| CN201138116Y (en) | System for preparing food-grade carbon-dioxide by using power station smoke gas | |
| CN215486191U (en) | Device system for capturing energy of carbon dioxide analysis tower by amine method | |
| CN112933886B (en) | Carbon dioxide entrapment waste heat flash distillation regeneration system | |
| CN107008125B (en) | CO in a kind of cement kiln flue gas2Capture method | |
| CN203295457U (en) | Normal-pressure oxygen-enriched continuous gasifying-gas and steam combined power generation heat supply equipment | |
| CN206642578U (en) | It is a kind of to be adapted to the device that carbon dioxide is continuously trapped and generated electricity in cement kiln flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |