CN206772054U - The energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan - Google Patents
The energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan Download PDFInfo
- Publication number
- CN206772054U CN206772054U CN201720239704.3U CN201720239704U CN206772054U CN 206772054 U CN206772054 U CN 206772054U CN 201720239704 U CN201720239704 U CN 201720239704U CN 206772054 U CN206772054 U CN 206772054U
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- CN
- China
- Prior art keywords
- waste heat
- steam
- exhaust fan
- heat boiler
- kiln head
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model belongs to the field that utilizes of waste heat boiler steam, more particularly to the energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan.Described device includes waste heat boiler（1）, drum（2）, steam turbine（3）, condenser（4）, cooling tower（5）, cooling water pump（6）, oxygen-eliminating device（7）, water pump（8）, decelerator（9）, dust-precipitator（10）, kiln head exhaust fan（11）And chimney（12）；The steam turbine（3）Drum is connected to by steam pipework（2）And condenser（4）Between；The condenser（4）, cooling tower（5）And cooling water pump（6）It is sequentially connected and is connect by steam pipeline；The waste heat boiler（1）, dust-precipitator（10）, kiln head exhaust fan（11）And chimney（12）It is sequentially connected and is connect by flue.The utility model reduces energy consumption, has saved fire coal, reduces discharge.
Description
Technical field
The utility model belongs to the field that utilizes of waste heat boiler steam, more particularly to cement furnace waste heat boiler steam drive
The energy saving transmission device of kiln head exhaust fan.
Background technology
China is 2,400,000,000 tons in the cement total output of 2016, is showed a rising trend compared with last year.Manufacture of cement huge energy consumption, portion
Point enterprise this situation after using oxygen-enriched combustion technology makes moderate progress, but from the point of view of cement production process, in order to reduce energy consumption and
Increase benefit, overyielding often occurs in clinker;After being transformed especially with oxygen-enriched combustion technology, the steam of waste heat boiler
Yield increased, and this excess steam sometimes has to discharge, and is not fully utilized, still with further energy-saving potential.
On cement clinker production line, the flue gas that rotary kiln end, kiln tail are discharged is respectively enterd by waste heat boiler
Kiln hood waste heat boiler（AQC waste heat boilers）And kiln tail waste heat boiler（SP waste heat boilers）, heat is carried out with the heat transferring medium in pipeline
Transmit, energy conversion is realized come pushing turbine by caused superheated steam, steam turbine drives generator, heat energy is finally turned
Turn to electric energy；Mechanical energy can also be converted directly into, which improves the efficiency of equipment, saves the unnecessary of steam turbine power generation
Link.
Oxygen-enriched combustion technology is that fuel is placed in into oxygen concentration height（Higher than 20.947%）Air ambient in burnt,
Because the features such as its flame combustion is fast, temperature is high, burning-point is low, pollutant discharge amount is few, strong adaptability, is employed.The technology is used for water
Mud clinker produces the use range that can improve coal, improves the usage rate of low-grade coal, improves clinker yield and quality, drop
Low energy consumption, pollution being reduced, simultaneously because the temperature of burning situation improves so that the flue-gas temperature into waste heat boiler rises, and
Caused excess steam does not have its supporting setting and is fully utilized in waste heat boiler, and which results in the waste of the energy and heat
Pollution.
Utility model content
The problem of in background technology, the utility model provide cement furnace waste heat boiler steam drive kiln hood air draft
The energy saving transmission device of machine.Take afterheat boiler system jet chimney install additional bypass, do not influence original cogeneration with
And in the case of normal production, the kinetic energy that excess steam is converted through steam turbine drives kiln head exhaust fan or equivalent Fan Equipment,
More rationally utilizing for energy is realized, energy consumption is reduced, has saved fire coal, reduce discharge.
To achieve these goals, the utility model proposes following technical scheme：
The energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan, described device include waste heat boiler
（1）, drum（2）, steam turbine（3）, condenser（4）, cooling tower（5）, cooling water pump（6）, oxygen-eliminating device（7）, water pump（8）, slow down
Device（9）, dust-precipitator（10）, kiln head exhaust fan（11）And chimney（12）, it is characterised in that
The steam turbine（3）Drum is connected to by steam pipework（2）And condenser（4）Between；
The condenser（4）, cooling tower（5）And cooling water pump（6）It is sequentially connected and is connect by steam pipeline, is completed steam and follow
Ring；
The oxygen-eliminating device（7）And water pump（8）It is sequentially connected in series by heat transferring medium pipeline in drum（2）And condenser（4）It
Between；
The waste heat boiler（1）, dust-precipitator（10）, kiln head exhaust fan（11）And chimney（12）Pass through flue successively phase
Connection；
The decelerator（9）It is connected to steam turbine（3）And kiln head exhaust fan（11）Between.
Further, described device also includes n steam turbine, n decelerator and n blower fan or other load equipments, its
Middle n >=1；
The n steam turbine and the steam turbine（3）Drum is connected in parallel on by steam pipework（2）And condenser（4）Between；
The n decelerator and the decelerator（9）Between it is in parallel；
The n blower fan or other load equipments and the kiln head exhaust fan（11）It is in parallel.
Further, the waste heat boiler（1）Including AQC and SP waste heat boilers.
Further, the jet chimney, which is selected, relatively low thermal conductivity factor and emissivity, resistant to elevated temperatures material, including carbon
Manganese steel boiler tube, i.e. SA-210C.
The beneficial effects of the utility model are：
The utility model provides the energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan, a side
Face, after oxygen-enriched combustion technology, in the case where not reequiping existing equipment, steam heat caused by waste heat boiler can be by more
Make full use of, repacking cost is smaller；On the other hand, drive the equipment such as blower fan different from conventional electric power, dragged using steam waste heat
The equipment such as dynamic blower fan, avoid energy caused loss in transfer process, energy can be by more efficient utilization.
Meanwhile the utility model takes the jet chimney in afterheat boiler system to install bypass additional, is not influenceing original waste heat
In the case of generating electricity and normally producing, the kinetic energy that excess steam is converted through steam turbine drives kiln head exhaust fan, realizes energy
More rationally utilizing for amount, reduces energy consumption.
Brief description of the drawings
Fig. 1 is the structure chart of the energy saving transmission device of waste heat boiler excess steam driving kiln head exhaust fan.
In figure, 1- waste heat boilers, 2- drums, 3- steam turbines, 4- condensers, 5- cooling towers, 6- cooling water pumps, 7- deoxygenations
Device, 8- water pumps, 9- decelerators, 10- dust-precipitators, 11- kiln head exhaust fans, 12- chimneys.
Embodiment
Below in conjunction with the accompanying drawings, detailed elaboration is made to specific embodiment of the present utility model.Embodiment only supplies
Describe and be not used for limiting the scope of the utility model or implementation principle, the scope of protection of the utility model is still with claim
It is defined, including obvious changes or variations made on this basis etc..
Fig. 1 is the structure chart of the energy saving transmission device of waste heat boiler excess steam driving kiln head exhaust fan, such as the institute of accompanying drawing 1
Show, described device includes waste heat boiler 1, drum 2, steam turbine 3, condenser 4, cooling tower 5, cooling water pump 6, oxygen-eliminating device 7, water pump
8th, dust-precipitator 10, decelerator 9, kiln head exhaust fan 11 and chimney 12.
The steam turbine 3 is connected between drum 2 and condenser 4 by steam pipework；The condenser 4, the and of cooling tower 5
Cooling water pump 6 is sequentially connected by steam pipeline and connect, and completes Water, steam circulation；The oxygen-eliminating device 7 and water pump 8 pass through heat transferring medium pipe
Road is sequentially connected in series between drum 2 and condenser 4.The decelerator 9 is connected between steam turbine 3 and kiln head exhaust fan 11.
In condensing plant, the exhaust steam to steam turbine discharge in condenser 4 condenses, the He of cooling tower 5 successively of condenser 4
Cooling water pump 6 completes Water, steam circulation, heat transferring medium pipeline is sequentially connected drum 2, steam turbine 3, condensation by steam placed in series
Equipment and oxygen-eliminating device 7 and water pump 8；Waste heat boiler 1, dust-precipitator 10, kiln head exhaust fan 11 and chimney 12 by flue according to
It is secondary to be connected；Steam turbine 3 directly drags kiln head exhaust fan 11 through decelerator 9.
The reject steam pipeline opened up in afterheat boiler system, selected material should have relatively low thermal conductivity factor and transmitting
Rate, thermal loss is produced in steam course of conveying to reduce, while answer high temperature resistant, such as carbon manganese steel boiler tube（SA-210C）Deng；
On pipe arrangement, friction loss and local resistance loss are reduced as far as possible, are reduced and are installed cost additional, and should not influence other
Equipment working environment.
High-temperature steam part is drawn by pipeline caused by waste heat boiler, and degree adjustment valve can be set on bypass duct
（Such as stop valve）, heat supply, power supply can also be carried out as needed by part vapours through Steam Turbine Driven kiln head exhaust fan,
And drag the use of other blower fans.
The kiln head exhaust fan demand dragged through steam turbine can be single circuit；Can also multiple circuits in parallel.In this reality
On the basis of new technical scheme, those skilled in the art need not pay the modification or wait that creative work can make
With deformation, i.e., the blower fan such as high-temperature blower, cement mill, circulating fan through steam turbine dragging, still in protection of the present utility model
Within scope.
The utility model is utilized by the cyclic process of working medium, is studied by being dissected in cement plant, there is provided cement furnace
The energy saving transmission device of waste heat boiler steam drive kiln head exhaust fan.Methods described comprises the following steps：
（S1）Heat transferring medium（Such as water）Flue gas heat is absorbed in waste heat boiler 1；
（S2）Caused high-temperature steam exits into steam turbine 3 from drum 2 and done work；
（S3）Steam turbine 3 drives kiln head exhaust fan 11 by the speed change of decelerator 9, and dust-precipitator 10 is by the overwhelming majority in flue gas
Flue gas particle absorbs, and the flue gas after dedusting enters chimney 12 through kiln head exhaust fan 11, then is discharged in air；
（S4）The exhaust steam come out from steam turbine cooling water condensation caused by cooled tower 5 in condenser 4, enters back into deoxygenation
The deoxygenation of device 7, the condensed water after deoxygenation are pressurized by water pump 8 and are transported to drum 2.
The energy saving transmission device of the utility model cement furnace waste heat boiler steam drive kiln head exhaust fan, by waste heat boiler
The part superheated steam of heating is converted into shaft work through bypass duct by steam turbine, part shaft work be used to driving kiln head exhaust fan or
Equivalent apparatus, realize the reasonable utilization and distribution of energy.
Claims (4)
1. the energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan, described device include waste heat boiler
（1）, drum（2）, steam turbine（3）, condenser（4）, cooling tower（5）, cooling water pump（6）, oxygen-eliminating device（7）, water pump（8）, slow down
Device（9）, dust-precipitator（10）, kiln head exhaust fan（11）And chimney（12）, it is characterised in that
The steam turbine（3）Drum is connected to by steam pipework（2）And condenser（4）Between；
The condenser（4）, cooling tower（5）And cooling water pump（6）It is sequentially connected and is connect by steam pipeline, completes Water, steam circulation；
The oxygen-eliminating device（7）And water pump（8）It is sequentially connected in series by heat transferring medium pipeline in drum（2）And condenser（4）Between；
The waste heat boiler（1）, dust-precipitator（10）, kiln head exhaust fan（11）And chimney（12）It is sequentially connected by flue
Connect；
The decelerator（9）It is connected to steam turbine（3）And kiln head exhaust fan（11）Between.
2. the energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan according to claim 1, its
It is characterised by：
Described device also includes n steam turbine, n decelerator and n blower fan or other load equipments, wherein n >=1；
The n steam turbine and the steam turbine（3）Drum is connected in parallel on by steam pipework（2）And condenser（4）Between；
The n decelerator and the decelerator（9）Between it is in parallel；
The n blower fan or other load equipments and the kiln head exhaust fan（11）It is in parallel.
3. the energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan according to claim 1, its
It is characterised by：
The waste heat boiler（1）Including AQC and SP waste heat boilers.
4. the energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan according to claim 1, its
It is characterised by：
The jet chimney is from having relatively low thermal conductivity factor and emissivity, resistant to elevated temperatures material, including carbon manganese steel boiler tube, i.e.,
SA-210C。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720239704.3U CN206772054U (en) | 2017-03-13 | 2017-03-13 | The energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720239704.3U CN206772054U (en) | 2017-03-13 | 2017-03-13 | The energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206772054U true CN206772054U (en) | 2017-12-19 |
Family
ID=60633333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720239704.3U Expired - Fee Related CN206772054U (en) | 2017-03-13 | 2017-03-13 | The energy saving transmission device of cement furnace waste heat boiler steam drive kiln head exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206772054U (en) |
-
2017
- 2017-03-13 CN CN201720239704.3U patent/CN206772054U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20180313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |