CN204085207U - A kind of afterheat generating system being applied to cement production process - Google Patents
A kind of afterheat generating system being applied to cement production process Download PDFInfo
- Publication number
- CN204085207U CN204085207U CN201320895044.6U CN201320895044U CN204085207U CN 204085207 U CN204085207 U CN 204085207U CN 201320895044 U CN201320895044 U CN 201320895044U CN 204085207 U CN204085207 U CN 204085207U
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- CN
- China
- Prior art keywords
- kiln
- flue gas
- hot water
- water heat
- heat exchanger
- 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.)
- Expired - Lifetime
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000004568 cement Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000003546 flue gas Substances 0.000 claims abstract description 34
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002918 waste heat Substances 0.000 claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 235000014171 carbonated beverage Nutrition 0.000 claims abstract description 11
- 230000003750 conditioning effect Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 4
- 239000012716 precipitator Substances 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 abstract description 4
- 239000002912 waste gas Substances 0.000 description 5
- 239000003517 fume Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—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
- 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
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to the afterheat generating system being applied to cement production process, comprise carbonated drink Rankine cycle afterheat generating system and ORC afterheat generating system, this ORC afterheat generating system comprises kiln hood flue gas-hot water heat exchanger, is located at kiln cylinder body radiation heat collector, kiln exit gas-hot water heat exchanger, the ORC generating set on cylinder of rotary kiln surface; The smoke inlet of this kiln hood flue gas-hot water heat exchanger connects the end flue gas discharge opening of kiln hood cooler; The gas approach of this kiln exit gas-hot water heat exchanger connects the flue gas discharge opening of raw mill flue gas discharge opening, conditioning Tower flue gas discharge opening and kiln tail waste heat boiler; This kiln hood flue gas-hot water heat exchanger, kiln exit gas-hot water heat exchanger, kiln cylinder body radiation heat collector connect this ORC generating set by recirculated water heat exchanging pipe.The utility model, by increasing ORC afterheat generating system, to about the 150 DEG C further deep exploitations of waste heat flue gas not yet reclaimed, substantially increases generated energy, can improve generated energy 8%-10%.
Description
Technical field
The utility model belongs to manufacture of cement technical field of waste heat utilization, is specifically related to a kind of afterheat generating system being applied to cement production process.
Background technology
Cement production system is generally connected to form by rotary kiln, kiln hood cooler, kiln tail preheater, conditioning Tower, raw mill, kiln tail dust-precipitator, kiln hood dust-precipitator, blower fan and chimney.
The waste heat recovery of current cement producing line, in producing mainly for sinter leaching system, warm waste gas utilizes, namely kiln hood cooler 360 DEG C of waste gas (do not affecting under production prerequisite, kiln hood cooler intermediate openings can obtain about 360 DEG C) and kiln tail preheater export 340 DEG C ~ 350 DEG C waste gas.Utilize principle according to energy ladder, low temperature waste gas produces the generating of Steam Actuation gas-turbine drive electrical generators by waste heat boiler.
The existing system carrying out recycling for above-mentioned middle temperature waste gas residual heat generally adopts conventional carbonated drink Rankine cycle afterheat generating system, shown in Figure 1, this carbonated drink Rankine cycle afterheat generating system includes cyclone dust collectors, kiln hood waste heat boiler, kiln tail waste heat boiler, Turbo-generator Set, condenser, oxygen-eliminating device, boiler feed pump; By utilizing this carbonated drink Rankine cycle afterheat generating system, energy-saving effect can reach a ton grog generated energy 35 ~ 42kWh/t, to meet in cement production process 30% from electricity consumption.
But on this basis, still have about 150 DEG C waste heat flue gases not to be utilized, and the storage of these about 150 DEG C waste heat flue gases is huge, and there is higher value.
Utility model content
The purpose of this utility model is solve the problems of the technologies described above and provide a kind of afterheat generating system being applied to cement production process.
For achieving the above object, the utility model adopts following technical scheme:
Be applied to an afterheat generating system for cement production process, comprise carbonated drink Rankine cycle afterheat generating system; Also comprise ORC afterheat generating system, this ORC afterheat generating system comprises kiln hood flue gas-hot water heat exchanger, is located at kiln cylinder body radiation heat collector, kiln exit gas-hot water heat exchanger, the ORC generating set of the drum surface of rotary kiln; The flue gas inlet port of described kiln hood flue gas-hot water heat exchanger connects the end flue gas discharge opening of kiln hood cooler, the gas approach of described kiln exit gas-hot water heat exchanger connects the flue gas discharge opening of raw mill flue gas discharge opening, conditioning Tower flue gas discharge opening and kiln tail waste heat boiler, and the flue gas discharge opening of described kiln exit gas-hot water heat exchanger connects the mouth that gathers dust of kiln tail dust-precipitator; The flue gas discharge opening of described kiln hood flue gas-hot water heat exchanger connects the mouth that gathers dust of kiln hood dust-precipitator; Described kiln hood flue gas-hot water heat exchanger, kiln exit gas-hot water heat exchanger and kiln cylinder body radiation heat collector connect described ORC generating set by recirculated water heat exchanging pipe.
The utility model is by existing carbonated drink Rankine cycle afterheat generating system basis, increase ORC afterheat generating system, to about the 150 DEG C further deep exploitations of waste heat flue gas not yet reclaimed, substantially increase generated energy, for production capacity 5000t/d new type nonaqueous cement production line, for about the 150 DEG C low-temperature flue gas not yet utilized, above-mentioned ORC afterheat generating system is set, installed capacity is about 800kW, can improve generated energy 8%-10% on existing system basis.
Accompanying drawing explanation
Figure 1 shows that the structural representation of conventional carbonated drink Rankine cycle afterheat generating system;
Figure 2 shows that the structural representation being applied to the afterheat generating system of cement production process that the utility model embodiment provides;
Figure 3 shows that the fundamental diagram of the ORC generating set that the utility model embodiment provides;
In figure: 1, rotary kiln, 2, kiln hood cooler, 3, kiln tail preheater, 4, conditioning Tower, 5, raw mill, 6, kiln tail dust-precipitator, 7, kiln hood dust-precipitator, 8, blower fan, 9, chimney, 11, cyclone dust collectors, 22, kiln hood waste heat boiler, 33, kiln tail waste heat boiler, 44, Turbo-generator Set, 55, condenser, 66, oxygen-eliminating device, 77, boiler feed pump, 81, blower fan, 82, blower fan, 91, chimney, 111, kiln hood flue gas-hot water heat exchanger, 222, kiln cylinder body radiation heat collector, 333, kiln exit gas-hot water heat exchanger, 444, ORC generating set, 41, evaporimeter, 42, turbine power generation unit, 43, condenser, 45, working medium pump.
Detailed description of the invention
Below, in conjunction with example, substantive distinguishing features of the present utility model and advantage are further described, but the utility model is not limited to listed embodiment.
Shown in Figure 2, the figure shows a kind of structure being applied to the afterheat generating system of cement production process that the utility model embodiment provides.For convenience of explanation, illustrate only the part relevant with the utility model embodiment.
In order to the convenience illustrated, the connection dotted line in figure represents flue gas flow, and connect solid line and represent steam flow process, the arrow on this connection dotted line and solid line is expressed as the flow direction of flue gas and steam.
As shown in Figure 2, a kind of afterheat generating system being applied to cement production process, it is on the basis of the cement production system be made up of rotary kiln 1, kiln hood cooler 2, kiln tail preheater 3, conditioning Tower 4, raw mill 5, kiln tail dust-precipitator 6, kiln hood dust-precipitator 7, blower fan 8, blower fan 81, blower fan 82 and chimney 9, chimney 91, is equipped with the conventional carbonated drink Rankine cycle afterheat generating system be made up of cyclone dust collectors 11, kiln hood waste heat boiler 22, kiln tail waste heat boiler 33, Turbo-generator Set 44, condenser 55, oxygen-eliminating device 66, boiler feed pump 77; In addition, ORC(Organic Rankine Cycle is also equipped with, organic Rankine bottoming cycle) afterheat generating system, described ORC afterheat generating system comprises kiln hood flue gas-hot water heat exchanger 111, kiln cylinder body radiation heat collector 222, kiln exit gas-hot water heat exchanger 333, ORC generating set 444; The smoke inlet of described kiln hood flue gas-hot water heat exchanger 111 connects the end flue gas discharge opening of kiln hood cooler 2, and the flue gas discharge opening of described kiln hood flue gas-hot water heat exchanger 111 connects the smoke inlet of described kiln hood dust-precipitator 7; Described kiln cylinder body radiation heat collector 222 is located at the drum surface of rotary kiln 1, and described kiln hood flue gas-hot water heat exchanger 111, kiln exit gas-hot water heat exchanger 333 and kiln cylinder body radiation heat collector 222 connect described ORC generating set 444 respectively by recirculated water heat exchanging pipe; The gas approach of described kiln exit gas-hot water heat exchanger 333 receives the partial fume of discharging from the flue gas of raw mill 5 outlet, the partial fume of conditioning Tower 4 outlet and kiln tail waste heat boiler 33 by flue, the flue gas discharge opening of described kiln exit gas-hot water heat exchanger 333 connects kiln tail dust-precipitator 6 by pipeline, unnecessary flue gas is entered kiln tail dust-precipitator 6 after gathering dust, discharged by chimney 91 by blower fan.
Shown in Figure 3, described ORC generating set 444 comprises evaporimeter 41, turbine power generation unit 42, condenser 43 and working medium pump 45; Described evaporimeter 41 and described turbine power generation unit 42, condenser 43 are connected successively by the working medium circulation pipeline that working medium can be made to form closed circulation, and described working medium pump 45 is located on the pipeline that described evaporimeter is connected with condenser.
See Fig. 3, low-temperature heat source fluid enters evaporimeter 41 heat exchange with the low-pressure liquid organic working medium after working medium pump 45 supercharging, organic working medium heat absorption becomes high temperature and high pressure steam and promotes turbine power generation unit 42 acting generating, the organic working medium low-pressure steam of turbine outlet enters condensation 43 device, be condensed into liquid state to recirculated cooling water heat release, circulate and so forth, because organic working medium has low boiling characteristic, therefore, ORC system can realize the waste heat recovery of about 150 DEG C low-temperature flue gas in cement production process.
Because ORC generating set 444 requires that heat resource form is hot water, therefore need kiln hood flue gas-hot water heat exchanger 111, kiln exit gas-hot water heat exchanger 333 that low-temperature flue gas about 150 in cement production process DEG C is converted to hot water; Kiln hood flue gas-hot water heat exchanger 111 is arranged at kiln hood cooler 2 and exports, and utilizes its about 150 DEG C production about 130 DEG C thermal source hot water of discharging fume; Before kiln exit gas-hot water heat exchanger 333 is arranged at the mouth that gathers dust of kiln tail dust-precipitator 6, about 150 DEG C smoke evacuation production about the 130 DEG C thermal source hot water utilizing raw mill 4 and kiln tail waste heat boiler 33 to export; Kiln cylinder body radiation heat collector 222 is arranged at the drum surface of rotary kiln 1, utilizes its about 300 DEG C radiant heat energies to produce about 130 DEG C thermal source hot water; After the thermal source hot water that kiln hood flue gas-hot water heat exchanger 111, kiln cylinder body radiation heat collector 222, kiln exit gas-hot water heat exchanger 333 are produced converges, enter ORC generating set 444 and drive ORC generating set 444; Thermal source hot water after heat release, is again back in kiln hood flue gas-hot water heat exchanger 111, kiln cylinder body radiation heat collector 222, kiln exit gas-hot water heat exchanger 333 and absorbs heat, circulate and so forth in the evaporimeter 41 of ORC generating set 444.
The utility model is on existing conventional carbonated drink Rankine cycle afterheat generating system basis, by increasing ORC afterheat generating system, to about the 150 DEG C further deep exploitations of waste heat flue gas not yet reclaimed, substantially increase generated energy, for production capacity 5000t/d new type nonaqueous cement production line, for about the 150 DEG C low-temperature flue gas not yet utilized, above-mentioned ORC afterheat generating system is set, installed capacity is about 800kW, generated energy 8%-10% can be improved on the basis of existing conventional carbonated drink Rankine cycle afterheat generating system, there is good marketing prospect.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. be applied to an afterheat generating system for cement production process, comprise carbonated drink Rankine cycle afterheat generating system; It is characterized in that, also comprise ORC afterheat generating system, this ORC afterheat generating system comprises kiln hood flue gas-hot water heat exchanger, is located at kiln cylinder body radiation heat collector, kiln exit gas-hot water heat exchanger, the ORC generating set of the drum surface of rotary kiln; The flue gas inlet port of described kiln hood flue gas-hot water heat exchanger connects the end flue gas discharge opening of kiln hood cooler, the gas approach of described kiln exit gas-hot water heat exchanger connects the flue gas discharge opening of raw mill flue gas discharge opening, conditioning Tower flue gas discharge opening and kiln tail waste heat boiler, and the flue gas discharge opening of described kiln exit gas-hot water heat exchanger connects the mouth that gathers dust of kiln tail dust-precipitator; The flue gas discharge opening of described kiln hood flue gas-hot water heat exchanger connects the mouth that gathers dust of kiln hood dust-precipitator; Described kiln hood flue gas-hot water heat exchanger, kiln exit gas-hot water heat exchanger and kiln cylinder body radiation heat collector connect described ORC generating set by recirculated water heat exchanging pipe.
2. be applied to the afterheat generating system of cement production process according to claim 1, it is characterized in that, described ORC generating set comprises evaporimeter, turbine power generation unit, condenser and working medium pump; Described evaporimeter and described turbine power generation unit, condenser are connected successively by the working medium circulation pipeline making working medium and form closed circulation, and described working medium pump is located on described working medium circulation pipeline.
3. be applied to the afterheat generating system of cement production process according to claim 2, it is characterized in that, described working medium pump is located between described evaporimeter and condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895044.6U CN204085207U (en) | 2013-12-30 | 2013-12-30 | A kind of afterheat generating system being applied to cement production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895044.6U CN204085207U (en) | 2013-12-30 | 2013-12-30 | A kind of afterheat generating system being applied to cement production process |
Publications (1)
| Publication Number | Publication Date |
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| CN204085207U true CN204085207U (en) | 2015-01-07 |
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| CN201320895044.6U Expired - Lifetime CN204085207U (en) | 2013-12-30 | 2013-12-30 | A kind of afterheat generating system being applied to cement production process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890391A (en) * | 2016-05-23 | 2016-08-24 | 湖南思为能源环保工程有限公司 | Waste heat recovery device of cement kiln |
| CN110906749A (en) * | 2019-11-04 | 2020-03-24 | 安徽海螺建材设计研究院有限责任公司 | Novel dry-process clinker production line efficient waste heat power generation system and waste heat utilization method |
| CN111704436A (en) * | 2020-06-30 | 2020-09-25 | 武汉明源碧景环保科技股份有限公司 | Device and method for preparing ceramsite by cooperation of coal gangue, phosphogypsum and sludge |
-
2013
- 2013-12-30 CN CN201320895044.6U patent/CN204085207U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890391A (en) * | 2016-05-23 | 2016-08-24 | 湖南思为能源环保工程有限公司 | Waste heat recovery device of cement kiln |
| CN110906749A (en) * | 2019-11-04 | 2020-03-24 | 安徽海螺建材设计研究院有限责任公司 | Novel dry-process clinker production line efficient waste heat power generation system and waste heat utilization method |
| CN111704436A (en) * | 2020-06-30 | 2020-09-25 | 武汉明源碧景环保科技股份有限公司 | Device and method for preparing ceramsite by cooperation of coal gangue, phosphogypsum and sludge |
| CN111704436B (en) * | 2020-06-30 | 2021-03-09 | 武汉明源碧景环保科技有限公司 | Device and method for preparing ceramsite by cooperation of coal gangue, phosphogypsum and sludge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |
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| CX01 | Expiry of patent term |