CN201858899U - Improved power generation system for cement industry - Google Patents
Improved power generation system for cement industry Download PDFInfo
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- CN201858899U CN201858899U CN2010205386890U CN201020538689U CN201858899U CN 201858899 U CN201858899 U CN 201858899U CN 2010205386890 U CN2010205386890 U CN 2010205386890U CN 201020538689 U CN201020538689 U CN 201020538689U CN 201858899 U CN201858899 U CN 201858899U
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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 relates to the technical field of industrial power generation, in particular to an improved power generation system for cement industry; the system comprises a circulatory fluidizing bed boiler, a steam turbine, a power generator connected with the steam turbine, a condenser, a low-pressure heater, a thermal deaerator, a first feed water pump, a vacuum deaerator, a second feed water pump and a waste heat boiler set; the inlet of the vacuum deaerator is connected with the outlet of the condenser; the outlet of the vacuum deaerator is connected with the inlet of the second feed water pump; and the outlet of the second feed water pump is connected with the inlet of the waste heat boiler set. The system adopts a power station distribution manner of multiple boilers in one machine, and the waste heat boiler set shares a steam turbine power generator set with the circulatory fluidizing bed boiler, thereby saving the energy, reducing the pollution and greatly saving the factory land, the construction investment and the equipment investment.
Description
Technical field
The utility model relates to the industrial generation technical field, refers in particular to a kind of modified cement industry electricity generation system.
Background technology
In the cement processing industry, utilize the cogeneration of producing the cement generation very general, still, in most plant areas, the electric weight that send in the cogeneration power station can not satisfy plant area's electricity consumption.Country also proposes industrial wastes such as the flyash that produces in the production process, gangue, mine tailing, barren rock, waste material are fully utilized when advocating waste heat, overbottom pressure comprehensive utilization.Seldom utilize at present around plant area or the plant area low heat value industrial wastes such as gangue in the cement industry, what the utilization of gangue was adopted is open calcining, and the cinder after the burning is spiked in the raw material of manufacture of cement, so not only wastes energy but also causes environmental pollution.
Chinese patent Granted publication CN201110723Y discloses a kind of cement residual neat recovering system, comprise kiln hood waste heat boiler, kiln tail waste heat boiler and steam turbine, in described cement residual neat recovering system, establish flash vessel, establish hot water inlet, steam (vapor) outlet and hot water outlet on the described flash vessel, and be connected with described boiler, steam turbine and boiler feedwater pipeline respectively successively.This technical scheme can't be to producing the utilization of generating electricity of low heat value industrial wastes such as gangue that cement produces, and the electric energy of its generation also is difficult to satisfy the need for electricity of plant area.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of waste heat of producing the cement generation that can not only utilize and generates electricity, can also utilize the modified cement industry electricity generation system of low calorie fuels generating, this modified cement industry can fully satisfy the electricity consumption of manufacture of cement plant area with electricity generation system.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: modified cement industry electricity generation system, comprise CFBB, steam turbine, the generator that is connected with steam turbine, condenser, low-pressure heater, the thermal deaerator and first feed pump, the outlet of CFBB is connected with the inlet of steam turbine, the outlet of low-pressure heater is connected with the inlet of thermal deaerator, the outlet of thermal deaerator is connected with the inlet of first feed pump, the first feedwater delivery side of pump is connected with the inlet of CFBB, described modified cement industry also comprises vacuum dust cather with electricity generation system, second feed pump and waste heat boiler group, the inlet of vacuum dust cather is connected with the outlet of condenser, the outlet of vacuum dust cather is connected with the inlet of second feed pump, and the second feedwater delivery side of pump is connected with the inlet of waste heat boiler group.
Wherein, described waste heat boiler group comprises SP boiler and AQC boiler, and the AQC boiler is provided with the admission port and first outlet, and the SP boiler is provided with airflow inlet and gas outlet; Described admission port is connected with the second feedwater delivery side of pump, and first outlet is connected with the airflow inlet of SP boiler; Described gas outlet is connected with steam turbine.
Wherein, the bottom of described AQC boiler also is provided with second outlet, and this second outlet is connected with steam turbine.
Wherein, the outlet of described steam turbine is connected with the inlet of thermal deaerator.
Wherein, the outlet of described steam turbine is connected with the inlet of low-pressure heater.
The beneficial effects of the utility model are: the utility model provides a kind of modified cement industry electricity generation system, comprise CFBB, steam turbine, the generator that is connected with steam turbine, condenser, low-pressure heater, the thermal deaerator and first feed pump, the outlet of CFBB is connected with the inlet of steam turbine, the outlet of low-pressure heater is connected with the inlet of thermal deaerator, the outlet of thermal deaerator is connected with the inlet of first feed pump, the first feedwater delivery side of pump is connected with the inlet of CFBB, described modified cement industry also comprises vacuum dust cather with electricity generation system, second feed pump and waste heat boiler group, the inlet of vacuum dust cather is connected with the outlet of condenser, the outlet of vacuum dust cather is connected with the inlet of second feed pump, and the second feedwater delivery side of pump is connected with the inlet of waste heat boiler group.
The utility model adopts the power station arrangement of many stove one machines, the shared Turbo-generator Set of waste heat boiler group and CFBB.By adopting low calorie fuels such as burning in circulating fluid bed boiler gangue to generate electricity, fully satisfy the power consumption of plant area, the cinder of burning in circulating fluid bed boiler generation simultaneously can be spiked in the raw material of manufacture of cement, can reduce the required gangue amount of the open burning of cement plant calcining furnace, energy savings reduces and pollutes.In addition, the waste heat boiler group is connected with the kiln tail with the kiln hood of cement producing line respectively, utilizes cogeneration, energy savings.The shared Turbo-generator Set of waste heat boiler group and CFBB has been saved factory building land used, construction investment and equipment investment greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of waste heat boiler group of the present utility model.
The specific embodiment
For the ease of those skilled in the art's understanding, below in conjunction with embodiment and accompanying drawing the utility model is further described, the content that embodiment is mentioned not is to qualification of the present utility model.
As Fig. 1 to Figure 2 shows that modified cement industry electricity generation system described in the utility model, comprise CFBB 1, steam turbine 2, the generator 3 that is connected with steam turbine 2, condenser 4, low-pressure heater 5, the thermal deaerator 6 and first feed pump 7, the outlet of CFBB 1 is connected with the inlet of steam turbine 2, the outlet of low-pressure heater 5 is connected with the inlet of thermal deaerator 6, the outlet of thermal deaerator 6 is connected with the inlet of first feed pump 7, the outlet of first feed pump 7 is connected with the inlet of CFBB 1, described modified cement industry also comprises vacuum dust cather 8 with electricity generation system, second feed pump 9 and waste heat boiler group 10, the inlet of vacuum dust cather 8 is connected with the outlet of condenser 4, the outlet of vacuum dust cather 8 is connected with the inlet of second feed pump 9, and the outlet of second feed pump 9 is connected with the inlet of waste heat boiler group 10.
The utility model adopts the power station arrangement of many stove one machines, a waste heat boiler group 10 and CFBB 1 a shared steam turbine generator 3.By adopting low calorie fuels such as CFBB 1 burning gangue to generate electricity, fully satisfy the power consumption of plant area, the cinder that CFBB 1 burning simultaneously produces can be spiked in the raw material of manufacture of cement, can reduce the required gangue amount of the open burning of cement plant calcining furnace, energy savings reduces and pollutes.In addition, waste heat boiler group 10 is connected with the kiln tail with the kiln hood of cement producing line respectively, utilizes cogeneration, energy savings.A waste heat boiler group 10 and CFBB 1 a shared steam turbine generator 3 have been saved factory building land used, construction investment and equipment investment greatly.
The described waste heat boiler group 10 of present embodiment comprises SP boiler 11 and AQC boiler 12, and AQC boiler 12 is provided with the admission port 13 and first outlet 14, and SP boiler 11 is provided with airflow inlet 15 and gas outlet 16; Described admission port 13 is connected with the outlet of second feed pump 9, and first outlet 14 is connected with the airflow inlet 15 of SP boiler 11; Described gas outlet 16 is connected with steam turbine 2.The SP boiler 11 of present embodiment is the single vertical boiler of pressing of kiln tail SP.
The bottom of the described AQC boiler 12 of present embodiment also is provided with second outlet 17, and this second outlet 17 is connected with steam turbine 2.The AQC boiler 12 of present embodiment is the single vertical boiler of pressing of kiln hood AQC.
The outlet of the described steam turbine 2 of present embodiment is connected with the inlet of thermal deaerator 6.
The outlet of the described steam turbine 2 of present embodiment is connected with the inlet of low-pressure heater 5.
In the present embodiment, SP boiler 11, AQC boiler 12 and CFBB 1 are simultaneously for steam turbine 2 provides energy, and steam turbine 2 adopts condensing filling formula.Main steam is 3.43Mpa, 435 ℃ medium temperature and medium pressure steam, is produced by CFBB 1, and filling is 1 Mpa, 350 ℃ low temperature and low pressure steam, is produced by SP boiler 11 and AQC boiler 12.Steam turbine 2 adopts two sections backheats of drawing gas, and draws gas and enters thermal deaerator 6 and low-pressure heater 5 respectively.From the condensate water separated into two parts that condenser 4 comes out, a part enters CFBB 1 heating at last through low-pressure heater 5, thermal deaerator 6, first feed pump 7.Another part is sent into 10 heating of waste heat boiler group again through vacuum dust cather 8, second feed pump 9.
The cement line exhaust-heat boiler flue gas flow process of present embodiment: kiln hood waste gas is drawn from the middle part perforate of cooling machine, delivers to AQC boiler 12, through sending the kiln hood electric cleaner again back to after the cooling; Kiln tail gas comes out from first outlet 14, enters SP boiler 11, passes through high-temperature blower again after SP boiler 11 comes out, and fraction is sent to raw mill, and major part is sent to conditioning Tower.
The cement line waste heat boiler carbonated drink flow process of present embodiment: feedwater is after the heating of AQC boiler 12 one-level economizers, and a part is delivered to the economizer of SP boiler 11, enters drum again, and another part is delivered to AQC boiler 12 secondary economizers, the drum of entering again.Water in kiln hood boiler-steam dome and the kiln tail boiler-steam dome arrives separately drum by the natural circulation mode evaporimeter heat absorption boiling back of respectively hanging oneself, two boiler saturated vapors after gas-distributing cylinder mixes, are sent to steam turbine 2 do filling through the superheated steam that produces behind the superheater.
The foregoing description is one of preferable implementation of the utility model; in addition; the utility model can also realize by alternate manner that any conspicuous replacement is all within protection domain of the present utility model under the prerequisite that does not break away from the present utility model design.
Claims (5)
1. modified cement industry electricity generation system, comprise CFBB (1), steam turbine (2), the generator (3) that is connected with steam turbine (2), condenser (4), low-pressure heater (5), thermal deaerator (6) and first feed pump (7), the outlet of CFBB (1) is connected with the inlet of steam turbine (2), the outlet of low-pressure heater (5) is connected with the inlet of thermal deaerator (6), the outlet of thermal deaerator (6) is connected with the inlet of first feed pump (7), the outlet of first feed pump (7) is connected with the inlet of CFBB (1), it is characterized in that: described modified cement industry also comprises vacuum dust cather (8) with electricity generation system, second feed pump (9) and waste heat boiler group (10), the inlet of vacuum dust cather (8) is connected with the outlet of condenser (4), the outlet of vacuum dust cather (8) is connected with the inlet of second feed pump (9), and the outlet of second feed pump (9) is connected with the inlet of waste heat boiler group (10).
2. modified cement industry electricity generation system according to claim 1, it is characterized in that: described waste heat boiler group (10) comprises SP boiler (11) and AQC boiler (12), AQC boiler (12) is provided with the admission port (13) and first outlet (14), and SP boiler (11) is provided with airflow inlet (15) and gas outlet (16); Described admission port (13) is connected with the outlet of second feed pump (9), and first outlet (14) is connected with the airflow inlet (15) of SP boiler (11); Described gas outlet (16) is connected with steam turbine (2).
3. modified cement industry electricity generation system according to claim 2 is characterized in that: the bottom of described AQC boiler (12) also is provided with second outlet (17), and this second outlet (17) is connected with steam turbine (2).
4. modified cement industry electricity generation system according to claim 1 is characterized in that: the outlet of described steam turbine (2) is connected with the inlet of thermal deaerator (6).
5. modified cement industry electricity generation system according to claim 1 is characterized in that: the outlet of described steam turbine (2) is connected with the inlet of low-pressure heater (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386890U CN201858899U (en) | 2010-09-21 | 2010-09-21 | Improved power generation system for cement industry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386890U CN201858899U (en) | 2010-09-21 | 2010-09-21 | Improved power generation system for cement industry |
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| CN201858899U true CN201858899U (en) | 2011-06-08 |
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| CN2010205386890U Expired - Lifetime CN201858899U (en) | 2010-09-21 | 2010-09-21 | Improved power generation system for cement industry |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865746A (en) * | 2011-07-04 | 2013-01-09 | 广东开能环保能源有限公司 | Improved waste heat power generation system for cement industry |
| CN104048500A (en) * | 2014-06-28 | 2014-09-17 | 陈霍旺 | Kiln head waste heat generating system of dry method rotary kiln device |
| CN108253405A (en) * | 2018-02-28 | 2018-07-06 | 中国华电科工集团有限公司 | A kind of afterheat boiler system with vacuum dust cather |
-
2010
- 2010-09-21 CN CN2010205386890U patent/CN201858899U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865746A (en) * | 2011-07-04 | 2013-01-09 | 广东开能环保能源有限公司 | Improved waste heat power generation system for cement industry |
| CN104048500A (en) * | 2014-06-28 | 2014-09-17 | 陈霍旺 | Kiln head waste heat generating system of dry method rotary kiln device |
| CN108253405A (en) * | 2018-02-28 | 2018-07-06 | 中国华电科工集团有限公司 | A kind of afterheat boiler system with vacuum dust cather |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |