CN208635581U - A kind of pure cryogenic cement kiln afterheat utilizing system - Google Patents
A kind of pure cryogenic cement kiln afterheat utilizing system Download PDFInfo
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- CN208635581U CN208635581U CN201821331077.7U CN201821331077U CN208635581U CN 208635581 U CN208635581 U CN 208635581U CN 201821331077 U CN201821331077 U CN 201821331077U CN 208635581 U CN208635581 U CN 208635581U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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Abstract
The utility model discloses a kind of pure cryogenic cement kiln afterheat utilizing systems, including rotary kiln, preheater and grate-cooler, preheater is connect with SP waste heat boiler, grate-cooler is connect with AQC boiler, steam channel on AQC boiler and SP boiler is connected with steam turbine generator, steam turbine generator connects condenser, the condensation water route of the condenser connects the second flash vessel and is discharged header, the outlet pipe of the second flash vessel water outlet header connects AQC boiler economizer, the AQC boiler economizer external three tunnels communicating pipe is simultaneously connected to and the three tunnels communicating pipe is separately connected AQC furnace drum, SP furnace drum and the first flash vessel, AQC furnace drum, the escape pipe connection steam turbine generator prime acting of SP furnace drum, the outlet pipe of first flash vessel connects the second flash vessel, first flash vessel, second flash vessel Escape pipe and be connected to steam turbine rear class auxiliary acting.
Description
Technical field
The utility model relates to cement manufacturing field more particularly to a kind of pure cryogenic cement kiln afterheat utilizing systems.
Background technique
In the case where environmental protection is constantly taken seriously and administers the background deepened constantly with atmosphere, high energy consumption industry energy-saving emission reduction is had become
For the focus of social concerns.Important measures one of of the cogeneration as high energy consumption industry energy conservation emission reduction, in cement industry through more
Year development, technology and operation are increasingly mature, and cogeneration technology is to be converted to electric energy using thermal energy extra in production process
Technology.Cogeneration is not only energy saving, also helps environmental protection.The important equipment of cogeneration is waste heat boiler.It utilizes useless
Hot or flammable matter in the working medium such as gas, waste liquid makees heat source, and production steam is for generating electricity.Waste heat for power generation mainly has: high temperature
Fume afterheat chemically reacts waste heat, exhaust gas, spent liquor recovery, low temperature exhaust heat (being lower than 200 DEG C) etc..In addition, also useful extra pressure difference
Power generation；It, can first gas delivery user makes expanded steam turbine generator again after power generation for example, blast furnace gas is higher in furnace top pressure
With.
But in actual production operational process, ton clinker generated energy has to be fluctuated by a relatively large margin, can reach 42kwh/t, most
Low only 27 kwh/t are difficult to realize stable operation, and are difficult to take into account quality coal in cement kiln systems operating conditions in power generation, lead to water
Stall system condition is unstable.Therefore, cogeneration must assure that manufacture of cement is main business, waste heat in (1) cement production enterprise
Power generation is auxiliary industry, therefore the design of Waste Heat Power Station therrmodynamic system should be not influence manufacture of cement as principle；(2) Waste Heat Power Station should be able to be protected
Operational safety, stabilization, reliable is demonstrate,proved, while considering technical indicator, the advance of economic indicator；(3) meet manufacture of cement mistake first
Crude fuel dries the demand to waste heat in journey, next is by maximum recovery waste heat and it is made to be effectively converted into electric energy really
Determine Technology design；(4) reach reduction by pursuing energy saving, consumption reduction to the maximum extent without prejudice to national industry and industrial restructuring policy
Manufacture of cement cost, the purpose for improving Business Economic Benefit.
Summary of the invention
The utility model aim is to solve the above problems, and provides a kind of pure cryogenic cement kiln afterheat utilizing system, effectively
The generated energy of cement ton clinker is promoted, and stablizes the generated energy of ton clinker；Ensure that quality coal in cement kiln systems operating condition is more stable, clinker heat exchange
Efficiency improves, and clinker strength increased, and grindability makes moderate progress, and the unit-hour output of cement grinding mill is improved, to realize energy saving drop
Consumption production, reduces production cost, generates significant economic and social benefit.
To achieve the goals above, the technical solution of the utility model is:
A kind of pure cryogenic cement kiln afterheat utilizing system, including rotary kiln, the preheater being connect with rotary kiln and with
The grate-cooler of rotary kiln end connection, preheater are connect by pipeline with SP waste heat boiler, and grate-cooler passes through pipeline and AQC boiler
Connection, the steam channel being arranged on AQC boiler and the steam channel being arranged on SP boiler are connected with steam turbine generator respectively
It connecing, the steam turbine generator connects condenser, and the condensation water route of the condenser connects the second flash vessel and is discharged header, and described the
The outlet pipe that two flash vessels are discharged header connects AQC boiler economizer, the AQC boiler economizer external three tunnels communicating pipe and company
It is separately connected tri- tunnel communicating pipe of Tong Gai AQC furnace drum, SP furnace drum and the first flash vessel, AQC furnace drum, SP furnace drum go out
Tracheae connects the acting of steam turbine generator prime, and the outlet pipe of first flash vessel connects the second flash vessel, first flash distillation
Device, the second flash vessel escape pipe and be connected to steam turbine rear class auxiliary acting；The grate-cooler is push type grate-cooler, is pushed
Formula grate-cooler includes two sections of one section of grate-cooler, the grate-cooler set gradually from high in the end according to leaving air temp and three sections of grate-cooler,
Barricade is provided between two sections of the grate-cooler and three sections of grate-cooler；Two sections of the grate-cooler is provided with external pipeline and by outer
The external coal mill in road is taken over, three sections of the grate-cooler is provided with external pipeline and connects kiln hood air cooler, institute by external pipeline
State be provided between two sections of external pipelines of three sections of external pipelines of grate-cooler and grate-cooler coal mill hot air pipe be allowed to interconnected；AQC
Boiler afterheat boiler is separately connected one section and two sections of grate-cooler of grate-cooler by two-way transfer pipeline, and expansion chamber is conveyed by two-way
Pipeline is separately connected two sections of grate-cooler and three sections of grate-cooler, and corresponding volume control damper is equipped on transfer pipeline.
Further, the wall height is 1300mm.
Further, the external make-up pump of the condenser.
Further, SP waste heat boiler is horizontal forced circulation drum boiler, and SP waste heat boiler heating surface includes one group of overheat
Device and all snakelike suspention light pipes of four groups of evaporators；Superheater and second, the 4th group of evaporator are reverse-flow in heating surface, the
One, third group evaporator is downflow type, wherein first and second group of evaporator shares one outlet header, third and fourth group of evaporator is total
With one outlet header.
Further, AQC boiler be vertical Natural Circulation drum boiler, heating surface be followed successively by from top to bottom one group of superheater,
One group of evaporator and two groups of economizers, are reverse-flow arrangement；The wherein each header in superheater entry and exit, evaporator go out, enter
Each six headers of mouth, each header in economizer entry and exit.
The thermodynamic cycle of pure cryogenic cement kiln afterheat utilizing system is basic Steam Power Circulation, i.e., vapour, between water
Reciprocation cycle process.After steam enters steam turbine acting, condensed water is cooled to through condenser, and condensed water is pumped into the through condensate pump
Two flash vessels are discharged header, converge with flash vessel water outlet, are then pumped into AQC boiler economizer by boiler feed pump boosting and carry out
Heating, (223 DEG C) of high-temperature water point three tunnels after the heating of AQC boiler economizer are sent to AQC furnace drum, SP furnace drum and the respectively
In one flash vessel.Heated, the final superheated steam work generated under certain pressure is recycled in boiler into the water in two furnace drums
Steam turbine acting is sent into for main steam.Satisfying under certain pressure is generated by flash principle into the high-temperature water in the first flash vessel
Steam turbine rear class, which is sent into, with steam plays auxiliary acting, and the water outlet of the first flash vessel flashes saturation as the second flash vessel and steams
The heat source of vapour, the saturated vapor that the second flash vessel flashes off equally are sent into the auxiliary acting of steam turbine rear class.Steam exhaust after doing function
Condensed water is formed after condenser condenses participates in thermodynamic cycle again.The water consumed in production process is produced by pure water device
Pure water out squeezes into hot well through make-up pump.
In the case where kiln hood blower fan oepration at full load, what lower blower was combed in control is the effective of solution kiln hood positive pressure with air quantity
Approach.In such a way that castable pours, the barricade away from grate plate surface 1300mm is added to two, three sections of grate-cooler, makes grate-cooler
Cogeneration high temperature, the middle-temperature section recycling thermal efficiency are improved.
It installs coal additional and grinds hot air pipe, pipeline total length 14m, pipe diameter 600mm.It is available after transformation to be drawn by three sections of grate-cooler
The hot wind coal supply mill for entering kiln hood air cooler uses, and reduces coal mill at two sections of grate-cooler and strives landscape condition with cogeneration.
Compared with prior art, the utility model has the advantages and positive effects of:
The utility model, it is ensured that quality coal in cement kiln systems operating condition is more stable, and clinker heat exchange efficiency improves, and clinker strength is increased
Add, grindability makes moderate progress, and improves the unit-hour output of cement grinding mill, to realize energy-saving production, reduces production cost, generates
Significant economic and social benefit.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the general structure schematic diagram of the utility model；
Fig. 2 is the attachment structure schematic diagram of the grate-cooler of the utility model；
Fig. 3 is the structure chart of the SP waste heat boiler of the utility model；
Fig. 4 is the structure chart of the AQC boiler of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, any modification, equivalent replacement, improvement and so on should be included in the utility model
Within protection scope.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the pure cryogenic cement kiln afterheat utilizing system of the utility model, including revolution
Kiln 1, the preheater 2 being connect with 1 kiln tail of rotary kiln and the grate-cooler 3 being connect with 1 kiln hood of rotary kiln, preheater 2 by pipeline with
SP waste heat boiler 4 connects, and grate-cooler 3 is connect by pipeline with AQC boiler 5, the steam channel being arranged on AQC boiler 5 with set
It sets the steam channel on SP boiler 4 to be connected with steam turbine generator 7 respectively, the steam turbine generator 7 connects condenser 8, institute
The condensation water route for stating condenser 8 connects the second flash vessel water outlet header 9, and the outlet pipe that second flash vessel 9 is discharged header connects
Connect AQC boiler economizer, the AQC boiler economizer external three tunnels communicating pipe is simultaneously connected to and the three tunnels communicating pipe is separately connected AQC
Furnace drum, SP furnace drum and the first flash vessel 10, AQC furnace drum, SP furnace drum escape pipe connection steam turbine generator prime do
The outlet pipe of function, first flash vessel 10 connects the second flash vessel 9, the outlet of first flash vessel 10, the second flash vessel 9
It manages and is connected to the auxiliary acting of steam turbine rear class；The grate-cooler 3 is push type grate-cooler, and push type grate-cooler includes according to out
Two sections of one section of grate-cooler, grate-cooler that air temperature is set gradually from high in the end and three sections of grate-cooler, two sections of the grate-cooler and comb
Barricade 11 is provided between three sections of cold；Two sections of the grate-cooler is provided with external pipeline and by the external coal mill of external pipeline
12, three sections of the grate-cooler is provided with external pipeline and connects kiln hood air cooler 13, three sections of the grate-cooler by external pipeline
It is provided with coal mill hot air pipe 14 between two sections of external pipelines of external pipeline and grate-cooler and is allowed to interconnected；AQC boiler residual hot pot
Furnace 5 is separately connected one section and two sections of grate-cooler of grate-cooler by two-way transfer pipeline, and expansion chamber 15 passes through two-way transfer pipeline point
Not Lian Jie two sections of grate-cooler and three sections of grate-cooler, corresponding volume control damper is equipped on transfer pipeline.
11 height of barricade is 1300mm.The external make-up pump of the condenser 8.
Further, SP waste heat boiler 2 is horizontal forced circulation drum boiler, and 2 heating surface of SP waste heat boiler includes one group of mistake
Hot device 16 and all snakelike suspention light pipes of four groups of evaporators；Superheater 16 and second group of evaporator 18, the 4th group in heating surface
Evaporator 20 be it is reverse-flow, first group of evaporator 17, third group evaporator 19 are downflow type, wherein first group of evaporator 17, the
Two groups of evaporators 18 share one outlet header, and 19, the 4th groups of evaporators 20 of third group evaporator share one outlet header.
The furnace structure pattern is horizontal forced circulation drum boiler, 2 forced circulation pumps (1 spare).SP waste heat boiler is adopted
With the advantages of horizontal arrangement first is that fouling of heating surface can be reduced, second is that the quantity of rapping apparatus can be reduced, system air leakage amount
It is few.Boiler heating surface includes one group of superheater and all snakelike suspention light pipes of four groups of evaporators.Superheater and in heating surface
Two, the 4th group of evaporator is reverse-flow first, third group evaporator is downflow type, wherein first and second group of evaporator shares one
Outlet header, third and fourth group of evaporator share one outlet header.The evaporator heat exchange area 5702m in heating surface2, heat transfer
Pipe totally 104 × 4, specification 31.8 × t2.9 of φ, superheater heat exchange area 1314m2, heat-transfer pipe totally 80, specification φ 38.1 ×
t3.2.To enhance heat transfer effect, uses and be staggered in arrangement between Guan Yuguan.
Further, AQC boiler is vertical Natural Circulation drum boiler, and heating surface is followed successively by one group of superheater from top to bottom
21, one group of evaporator 22 and two groups of economizers 23,24, are reverse-flow arrangement；The wherein each connection in 21 entry and exit of superheater
Case, each six headers in 22 entry and exit of evaporator, economizer 23, each header in 24 entry and exit.
In the exhaust gas that AQC boiler utilizes contained dust be clinker particles, do not have adhesiveness, and clinker particles hardness compared with
Greatly, to reduce into furnace dust content.
The thermodynamic cycle of pure cryogenic cement kiln afterheat utilizing system is basic Steam Power Circulation, i.e., vapour, between water
Reciprocation cycle process.After steam enters steam turbine acting, condensed water is cooled to through condenser, and condensed water is pumped into the through condensate pump
Two flash vessels are discharged header, converge with flash vessel water outlet, are then pumped into AQC boiler economizer by boiler feed pump boosting and carry out
Heating, (223 DEG C) of high-temperature water point three tunnels after the heating of AQC boiler economizer are sent to AQC furnace drum, SP furnace drum and the respectively
In one flash vessel.Heated, the final superheated steam work generated under certain pressure is recycled in boiler into the water in two furnace drums
Steam turbine acting is sent into for main steam.Satisfying under certain pressure is generated by flash principle into the high-temperature water in the first flash vessel
Steam turbine rear class, which is sent into, with steam plays auxiliary acting, and the water outlet of the first flash vessel flashes saturation as the second flash vessel and steams
The heat source of vapour, the saturated vapor that the second flash vessel flashes off equally are sent into the auxiliary acting of steam turbine rear class.Steam exhaust after doing function
Condensed water is formed after condenser condenses participates in thermodynamic cycle again.The water consumed in production process is produced by pure water device
Pure water out squeezes into hot well through make-up pump.
In the case where kiln hood blower fan oepration at full load, what lower blower was combed in control is the effective of solution kiln hood positive pressure with air quantity
Approach.In such a way that castable pours, the barricade away from grate plate surface 1300mm is added to two, three sections of grate-cooler, makes grate-cooler
Cogeneration high temperature, the middle-temperature section recycling thermal efficiency are improved.
It installs coal additional and grinds hot air pipe, pipeline total length 14m, pipe diameter 600mm.It is available after transformation to be drawn by three sections of grate-cooler
The hot wind coal supply mill for entering kiln hood air cooler uses, and reduces coal mill at two sections of grate-cooler and strives landscape condition with cogeneration.
Claims (5)
1. a kind of pure cryogenic cement kiln afterheat utilizing system, it is characterised in that: connect including rotary kiln, with rotary kiln pre-
Hot device and the grate-cooler connecting with rotary kiln end, preheater are connect by pipeline with SP waste heat boiler, and grate-cooler passes through pipeline
It is connect with AQC boiler, the steam channel being arranged on AQC boiler and the steam channel being arranged on SP boiler are sent out with steamer respectively
Motor is connected, and the steam turbine generator connects condenser, and the condensation water route of the condenser connects the second flash vessel water outlet collection
The outlet pipe of case, the second flash vessel water outlet header connects AQC boiler economizer, external three tunnel of AQC boiler economizer
Communicating pipe is simultaneously connected to and is separately connected AQC furnace drum, SP furnace drum and the first flash vessel, AQC furnace drum, SP the three tunnels communicating pipe
The escape pipe connection steam turbine generator prime acting of furnace drum, the outlet pipe of first flash vessel connect the second flash vessel, institute
State the first flash vessel, the second flash vessel escape pipe and be connected to steam turbine rear class auxiliary acting；The grate-cooler is push type
Grate-cooler, push type grate-cooler include two sections of one section of grate-cooler, the grate-cooler set gradually from high in the end according to leaving air temp and
Three sections of grate-cooler, barricade is provided between two sections of the grate-cooler and three sections of grate-cooler；Two sections of the grate-cooler is provided with external
Pipeline simultaneously passes through the external coal mill of external pipeline, and three sections of the grate-cooler is provided with external pipeline and connects kiln by external pipeline
Head air cooler is provided with coal mill hot air pipe between two sections of external pipelines of three sections of external pipelines of the grate-cooler and grate-cooler and is allowed to phase
It is intercommunicated；AQC boiler afterheat boiler is separately connected one section and two sections of grate-cooler of grate-cooler by two-way transfer pipeline, and expansion chamber is logical
It crosses two-way transfer pipeline and is separately connected two sections of grate-cooler and three sections of grate-cooler, corresponding Boiler pressure control is equipped on transfer pipeline
Valve.
2. pure cryogenic cement kiln afterheat utilizing system as described in claim 1, it is characterised in that: the wall height is
1300mm。
3. pure cryogenic cement kiln afterheat utilizing system as described in claim 1, it is characterised in that: the external supply of condenser
Water pump.
4. pure cryogenic cement kiln afterheat utilizing system as described in claim 1, it is characterised in that: SP waste heat boiler is horizontal strong
System circulation drum boiler, SP waste heat boiler heating surface include one group of superheater and all snakelike suspention light pipes of four groups of evaporators；By
Superheater and second, the 4th group of evaporator are reverse-flow in hot face, first, third group evaporator be downflow type, wherein first and second
Group evaporator shares one outlet header, third and fourth group of evaporator shares one outlet header.
5. pure cryogenic cement kiln afterheat utilizing system as described in claim 1, it is characterised in that: AQC boiler is vertical nature
Drum boiler is recycled, it is reverse-flow cloth that heating surface is followed successively by one group of superheater, one group of evaporator and two groups of economizers from top to bottom
It sets；The wherein each header in superheater entry and exit, each six headers in evaporator entry and exit, each connection in economizer entry and exit
Case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821331077.7U CN208635581U (en) | 2018-08-17 | 2018-08-17 | A kind of pure cryogenic cement kiln afterheat utilizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821331077.7U CN208635581U (en) | 2018-08-17 | 2018-08-17 | A kind of pure cryogenic cement kiln afterheat utilizing system |
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| Publication Number | Publication Date |
|---|---|
| CN208635581U true CN208635581U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821331077.7U Expired - Fee Related CN208635581U (en) | 2018-08-17 | 2018-08-17 | A kind of pure cryogenic cement kiln afterheat utilizing system |
Country Status (1)
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| CN (1) | CN208635581U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855433A (en) * | 2019-03-28 | 2019-06-07 | 成都建筑材料工业设计研究院有限公司 | It is a kind of to heat Turbo-generator Set condensate system using cement kiln low temperature exhaust heat |
| CN111924921A (en) * | 2020-09-17 | 2020-11-13 | 成都建筑材料工业设计研究院有限公司 | System and method for realizing cement production and seawater desalination in coastal region in combined manner |
-
2018
- 2018-08-17 CN CN201821331077.7U patent/CN208635581U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855433A (en) * | 2019-03-28 | 2019-06-07 | 成都建筑材料工业设计研究院有限公司 | It is a kind of to heat Turbo-generator Set condensate system using cement kiln low temperature exhaust heat |
| CN111924921A (en) * | 2020-09-17 | 2020-11-13 | 成都建筑材料工业设计研究院有限公司 | System and method for realizing cement production and seawater desalination in coastal region in combined manner |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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