CN104748560A - Method and system for recycling low-temperature flue gas waste heat of kiln head clinker cooler of cement plant - Google Patents
Method and system for recycling low-temperature flue gas waste heat of kiln head clinker cooler of cement plant Download PDFInfo
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- CN104748560A CN104748560A CN201410845320.7A CN201410845320A CN104748560A CN 104748560 A CN104748560 A CN 104748560A CN 201410845320 A CN201410845320 A CN 201410845320A CN 104748560 A CN104748560 A CN 104748560A
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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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- 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
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Abstract
The invention discloses a method and system for recycling low-temperature flue gas waste heat of a kiln head clinker cooler of a cement plant. The system comprises the kiln head clinker cooler, a waste heat boiler and a circulation draught fan. The kiln head clinker cooler is communicated with the waste heat boiler through a chimney. Flue gas is drawn to the waste heat boiler through the circulation draught fan. The waste heat boiler comprises a sub-medium pressure waste heat boiler and a water preheater. The high temperature flue gas of the high temperature section of the kiln head clinker cooler is guided to the sub-medium pressure waste heat boiler firstly and then guided into the water preheater for heat exchange. After cascaded heat exchange of the flue gas is conducted through the sub-medium pressure water heat boiler and the water preheater, the flue gas is drawn by the circulation draught fan to return to an air blower at the bottom of the kiln head clinker cooler. The cascaded energy recycling system comprising the sub-medium pressure waste heat boiler, a low-pressure waste heat boiler and the water preheater is arranged, so that the operation parameters of the waste heat boiler are remarkably increased, the steam generation amount, the pressure and the temperature of the waste heat boiler are stabilized, and the heat of low-temperature flue gas of the kiln head clinker cooler is stably and efficiently recycled.
Description
Technical field
The present invention relates to a kind of flue gas waste heat recovery method and system thereof, relate more specifically to a kind of cement plant kiln hood and who knows cooling machine low-temperature flue gas exhaust heat recovering method and system thereof.
Background technology
In clinker calcination, less than the 400 DEG C waste gas of being discharged by kiln tail preheater, kiln hood chamotte cooler etc., its heat accounts for Cement clinker buring total heat consumption more than 30%, causes serious energy waste.Manufacture of cement, consumes a large amount of heat energy (clinker consume fuel folding standard coal per ton is 100 ~ 115Kg) on the one hand, consumes a large amount of electric energy (cement per ton consumes 90 ~ 115Kwh) on the other hand.If less than the 400 DEG C waste gas residual heats of discharging are converted to electric energy and are back to manufacture of cement, can make clinker produce comprehensive power consumption reduce by 60% or the comprehensive power consumption of manufacture of cement reduce by more than 30%, for cement production enterprise: can significantly reduce to social power plant purchase of electricity or significantly reduce cement production enterprise combustion fuel the generated energy of power plant for self-supply greatly to reduce cement production consumption; Heat island phenomenon cement kiln waste gas waste heat can being avoided directly to enter air cause, can reduce CO
2deng combustion waste discharge and be conducive to protection of the environment.
In current novel dry-method cement clinker production line residual neat recovering system, cement plant kiln hood who knows that cooler generally adopts open waste heat recovery system, open waste heat recovery system refers to: in heat boiler outlet, place arranges air-introduced machine, and cooled flue gas (usually at 90 ~ 100 DEG C) directly enters air.Open flue gas system is a kind of traditional residual neat recovering system, see Fig. 1, kiln hood who knows that cooler 1 is communicated with waste heat boiler 2 entrance point by a flue, flue gas rely on be arranged on the air-introduced machine 8 in waste heat boiler 2 exit be aspirated through waste heat boiler 2, enter air after the cooled flue gas of heat exchange.Open waste heat recovery system vibrational power flow is simple, but its steam production, temperature and pressure are low, and also unstable, the thermal efficiency is low; Simultaneously owing to arranging air-introduced machine 8 in waste heat boiler 2 exit, also who knows that bottom cooler 1, bellows arrange air blast 9, adds additional secondary energy sources consumption at kiln hood; The cooled flue gas of heat exchange (usually at 90 ~ 100 DEG C) its enthalpy is at 119 ~ 132Kj/Nm
3, reclaim field for low temperature exhaust heat, it is a kind of waste that the flue gas of this taste is not recycled.
Summary of the invention
The present invention based on who knows kiln hood, the basis that cooling machine low-temperature flue gas temperature distributing rule is understood in depth proposes, and object is that a kind of cement plant kiln hood proposed to conscientiously solve the problems of the technologies described above who knows cooling machine low-temperature flue gas residual neat recovering system.Described system is flue gas complete alternation energy gradient utilization system, comprises kiln hood and who knows cooler, waste heat boiler and circulating fan; Kiln hood who knows that cooler is communicated with waste heat boiler by flue, to be taken out by flue gas cause waste heat boiler by circulating fan; Waste heat boiler comprises time middle pressure waster heat boiler, low pressure waste heat boiler and water preheater, kiln hood who knows that the high-temperature flue gas of cooler high temperature section introduces time middle pressure waster heat boiler in advance, after secondary middle pressure waster heat boiler heat exchange, the flue gas of lower temperature row introducing low pressure waste heat boiler again, finally introduces water preheater heat exchange; Flue gas, after secondary middle pressure, low pressure waste heat boiler and the heat exchange of water preheater step, is aspirated by circulating fan, and foldback returns kiln hood and who knows bellows bottom cooler.
For realizing above technical purpose, the present invention will take following technical scheme:
A kind of cement plant kiln hood who knows cooling machine low-temperature flue gas exhaust heat recovering method, adopt circulating fan, the high-temperature flue gas of cooler high temperature section will be who knows from kiln hood, leading introducing time middle pressure waster heat boiler carries out waste heat recovery, introduce water preheater again and carry out heat exchange, last foldback returns kiln hood and who knows bellows bottom cooler, again participates in flue gas heat exchange circulation.
Another technical purpose of the present invention is to provide a kind of cement plant kiln hood and who knows cooling machine low-temperature flue gas exhaust heat recovering method, adopt circulating fan, 185 ~ 400 DEG C of high-temperature flue gas of cooler high temperature section will be who knows from kiln hood, and first introduce time middle pressure waster heat boiler and carry out waste heat recovery; After flue-gas temperature is reduced to 150 ~ 185 DEG C, introduces low pressure waste heat boiler and carry out waste heat recovery; After flue-gas temperature is reduced to 90 ~ 150 DEG C, introduces water preheater and carry out heat exchange; Last foldback returns kiln hood and who knows bellows bottom cooler, again participates in flue gas heat exchange circulation.
As a further improvement on the present invention, described middle pressure waster heat boiler refers to the boiler of main steam operational factor at 1.0 ~ 3.8MPa; Low pressure waste heat boiler refers to the boiler of main steam operational factor at 0.1 ~ 0.5MPa; Water preheater refers to that leaving water temperature is at 80 ~ 135 DEG C, and operating pressure is at the boiler of 1.0 ~ 4.0MPa.
Another technical purpose of the present invention is to provide a kind of cement plant kiln hood and who knows cooling machine low-temperature flue gas residual neat recovering system, comprises kiln hood and who knows cooler, waste heat boiler and circulating fan; By flue and described kiln hood, the arrival end of described waste heat boiler who knows that the high temperature section of cooler is communicated with, with described kiln hood, the port of export then who knows that the bellows bottom cooler are communicated with by the flue being provided with circulating fan; Time middle pressure waster heat boiler, water preheater is sequentially set with between the arrival end of waste heat boiler, the port of export; After kiln hood who knows that the high-temperature flue gas of cooler high temperature section introduces time middle pressure waster heat boiler in advance, then introduce water preheater heat exchange; Finally by circulating fan suction, foldback returns kiln hood and who knows bellows bottom cooler.
Be communicated with described waste heat boiler entrance point and described kiln hood who knows that the flue of cooler is one or more pipeline.
Described low-temperature flue gas waste heat recovery system fume side only arranges a Fans.
The entrance point of described waste heat boiler is expansion chamber.
Described time middle pressure waster heat boiler is provided with steam superheater, evaporimeter and soft water heater.
Waste heat boiler also comprises the low pressure waste heat boiler be arranged between time middle pressure waster heat boiler and water preheater.
Described low pressure waste heat boiler is provided with steam superheater, evaporimeter and soft water heater.
Cement plant of the present invention kiln hood who knows that cooling machine low-temperature flue gas residual neat recovering system advantage is as follows:
(1) heat recovery rate is high
System of the present invention is flue gas complete alternation energy gradient utilization system, described kiln hood who knows that cooling machine low-temperature flue gas is after described residual heat boiler for exchanging heat cooling, return kiln hood by circulating fan suction foldback and who knows bellows bottom cooler, again participate in flue gas heat exchange circulation, waste heat recovery rate compared with the existing technology improves 20 ~ 30%.
(2) waste heat boiler evaporation capacity, pressure and temperature stabilization
System waste heat boiler of the present invention adopts different operational factor (secondary middle pressure and low pressure) designs, kiln hood who knows that the high-temperature flue gas of cooler high temperature section introduces time middle pressure waster heat boiler in advance, the flue gas of lower temperature row introducing low pressure waste heat boiler again after secondary middle pressure waster heat boiler heat exchange, finally introduce water preheater heat exchange, make the evaporation capacity (steam production) of waste heat boiler, pressure and temperature stabilization, steam parameter is significantly improved simultaneously.
(3) field condition strong adaptability
Waste heat boiler of the present invention comprises time middle pressure waster heat boiler and low pressure waste heat boiler, can according to field condition, secondary middle pressure waster heat boiler and low pressure waste heat boiler is capable of being combined arranges, can also dispersed placement; Also adjust device shaped and size flexibly according to existence conditions, for manufacturing and designing, in-site installation and operation maintenance bring great convenience.
(4) box type modularized design
Waste heat boiler device of the present invention, adopts modularized design, and manufactory's assembling is dispatched from the factory.The present invention can shorten the installation period of waste heat boiler, saves labor cost, significantly reduces mounting cost; In manufactory, welding quality is controlled preferably, prolonged boiler service life; Farthest avoid the damage that boiler heat-transfer face is subject in transportation.
(5) waste heat boiler is stable, and O&M cost is low
Expansion chamber of the present invention, before being arranged at waste heat boiler, flue gas, after expansion chamber gravitational dust collection and redistribution aerodynamic field, evenly enters waste heat boiler.Described structure decreases the dustiness in flue gas; Reduce the wind speed of boiler inlet flue gas; Improve economic benefit, make boiler because of the minimizing of wearing and tearing booster number of times, avoid the regular maintenance expense of owner, stable boiler capacity, substantially increase the economic well-being of workers and staff of owner.
(6) residual neat recovering system is from consuming energy reduction
System of the present invention is flue gas complete alternation system, kiln hood be who knows and set up closed complete alternation flue between cooler and waste heat boiler, in flue gas recirculation loop, only a circulating fan (at least needing in currently available technology to arrange each one of induced draft) need be set, effectively reduce described residual neat recovering system from power consumption, improve the economic benefit of residual neat recovering system further.
Accompanying drawing explanation
Fig. 1 is the structural representation that in prior art, cement plant kiln hood who knows an embodiment of cooling machine low-temperature flue gas residual neat recovering system, i.e. open waste heat recovery system;
Fig. 2 is the structural representation that cement plant of the present invention kiln hood who knows an embodiment of cooling machine low-temperature flue gas residual neat recovering system, i.e. complete circulation type residual neat recovering system (arranging time middle pressure waster heat boiler and low pressure waste heat boiler respectively);
Fig. 3 is the structural representation that cement plant of the present invention kiln hood who knows another embodiment of cooling machine low-temperature flue gas residual neat recovering system, i.e. complete circulation type residual neat recovering system (arranging time middle pressure waster heat boiler);
In figure: 1. kiln hood who knows cooler, 2. waste heat boiler, 3. circulating fan, 4. expansion chamber, 5. time middle pressure waster heat boiler, 6. low pressure waste heat boiler, 7. water preheater, 8. air-introduced machine, 9. air blast.
Detailed description of the invention
Accompanying drawing discloses the structural representation of the specific embodiment of the invention without limitation, is further elaborated technical scheme of the present invention below with reference to the drawings and specific embodiments.
The present invention is based on existing cement plant kiln hood and who knows that cooler generally adopts the deficiency existing for open waste heat recovery system, a kind of exhaust heat recovering method of closed loop is provided, that is: circulating fan is adopted, the high-temperature flue gas of cooler high temperature section will be who knows from kiln hood, leading introducing time middle pressure waster heat boiler carries out waste heat recovery, introduce water preheater again and carry out heat exchange, last foldback returns kiln hood and who knows bellows bottom cooler, again participates in flue gas heat exchange circulation; Consider waste heat boiler evaporation capacity, pressure and temperature stability requirement, the present invention adopts combined boiler to carry out waste heat recovery, first introduces time middle pressure waster heat boiler carry out waste heat recovery by flue gas, then introduces low pressure waste heat boiler and carry out waste heat recovery.
In above-mentioned waste heat recovery process:
Secondary middle pressure waster heat boiler refers to the boiler of main steam operational factor at 1.0 ~ 3.8MPa;
Low pressure waste heat boiler refers to the boiler of main steam operational factor at 0.1 ~ 0.5MPa;
Water preheater refers to that leaving water temperature is at 80 ~ 135 DEG C, and operating pressure is at the boiler of 1.0 ~ 4.0MPa.
Cement plant kiln hood who knows that cooling machine low-temperature flue gas residual neat recovering system have employed the operational factor setting of multiple pressure power, improve residual neat recovering system efficiency, while stability and high efficiency utilizes kiln hood to who knows the different EGT waste heat of cooler, achieve heat carries out cascade utilization principle according to its temperature.
Secondary middle pressure waster heat boiler utilizes kiln hood to who knows the waste heat of cooler 185 ~ 400 DEG C of EGTs;
Low pressure waste heat boiler utilizes kiln hood to who knows the waste heat of cooler 150 ~ 185 DEG C of EGTs;
Water preheater utilizes kiln hood to who knows the waste heat of cooler 90 ~ 150 DEG C of EGTs.
A specific embodiment of cooling machine low-temperature flue gas residual neat recovering system is who knows according to cement plant of the present invention kiln hood, by one or more flue and described kiln hood, the arrival end of described waste heat boiler who knows that the high temperature section of cooler is communicated with, with described kiln hood, its port of export who knows that the bellows bottom cooler are communicated with by the flue being provided with circulating fan.Owing to being provided with flue gas complete alternation afterheat boiler system, improving and stabilize waste heat boiler input gas temperature, while improving waste heat boiler operational factor, achieving the object of the steam production of stable residual heat boiler; Be arranged at the water preheater of waste heat boiler afterbody, by step heat exchange, kiln hood be who knows, and the heat of cooling machine low-temperature flue gas is reclaimed further, makes residual heat resources realize maximized utilization; Residual neat recovering system heat energy recovery rate of the present invention compared with the existing technology improves 20 ~ 30%.
Who knows a specific embodiment of cooling machine low-temperature flue gas residual neat recovering system according to cement plant of the present invention kiln hood, described system is flue gas complete alternation energy gradient utilization system, comprises kiln hood and who knows cooler, waste heat boiler and circulating fan; Kiln hood who knows that cooler is communicated with waste heat boiler by flue, to be taken out by flue gas cause waste heat boiler by circulating fan; Waste heat boiler comprises time middle pressure waster heat boiler, low pressure waste heat boiler and water preheater, kiln hood who knows that the high-temperature flue gas of cooler high temperature section introduces time middle pressure waster heat boiler in advance, after secondary middle pressure waster heat boiler heat exchange, the flue gas of lower temperature row introducing low pressure waste heat boiler again, finally introduces water preheater heat exchange; Flue gas, after secondary middle pressure, low pressure waste heat boiler and the heat exchange of water preheater step, is aspirated by circulating fan, and foldback returns kiln hood and who knows bellows bottom cooler.
Fig. 2 discloses a kind of step residual neat recovering system, and this step residual neat recovering system comprises kiln hood and who knows cooler 1; The waste heat boiler 2 of described system comprises time middle pressure waster heat boiler 5, low pressure waste heat boiler 6 and water preheater 7, and the entrance point bottom waste heat boiler 2 is provided with expansion chamber 4, by flue and kiln hood, expansion chamber 4 who knows that cooler 1 is communicated with; The arrival end of circulating fan 3 is communicated with the port of export of waste heat boiler 2, and its port of export and kiln hood who knows that the bellows bottom cooler 1 are communicated with.Concrete, kiln hood who knows by kiln hood, the flue gas of cooler high temperature section who knows that one or more pipeline at cooler 1 top is extracted out by circulating fan 3, introduces the entrance point of waste heat boiler 2.Kiln hood who knows the quantity of cooler Base top contact pipeline, and the carbonated drink operational factor according to waste heat boiler is determined.The flue gas of described high temperature section, after expansion chamber 4 gravitational dust collection and redistribution aerodynamic field, evenly enters waste heat boiler 2; The flue gas of high temperature section introduces time middle pressure waster heat boiler 5 in advance, and the low-temperature flue gas formed after the heat exchange of secondary middle pressure waster heat boiler 5 again row introduces low pressure waste heat boiler 6, finally introduces water preheater 7 heat exchange; Flue gas after secondary middle pressure waster heat boiler 5, low pressure waste heat boiler 6 and the heat exchange of water preheater 7 step, is aspirated by circulating fan 3, returns kiln hood who knows bellows bottom cooler 1 by one or more pipeline foldback.
Fig. 3 discloses pressure residual neat recovering system in a kind of time, presses residual neat recovering system to comprise kiln hood and who knows cooler 1 in this time; The waste heat boiler 2 of described system comprises time middle pressure waster heat boiler 5 and water preheater 7, and the entrance point bottom waste heat boiler 2 is provided with expansion chamber 4, by flue and kiln hood, expansion chamber 4 who knows that cooler 1 is communicated with; The arrival end of circulating fan 3 is communicated with the port of export of waste heat boiler 2, and its port of export and kiln hood who knows that the bellows bottom cooler 1 are communicated with.Concrete, kiln hood who knows by kiln hood, the flue gas of cooler high temperature section who knows that one or more pipeline at cooler 1 top is extracted out by circulating fan 3, introduces the entrance point of waste heat boiler 2.Kiln hood who knows the quantity of cooler Base top contact pipeline, and the carbonated drink operational factor according to waste heat boiler is determined.The flue gas of described high temperature section, after expansion chamber 4 gravitational dust collection and redistribution aerodynamic field, evenly enters waste heat boiler 2; The flue gas of high temperature section introduces time middle pressure waster heat boiler 5 in advance, and the low-temperature flue gas formed after the heat exchange of secondary middle pressure waster heat boiler 5 again row introduces water preheater 7 heat exchange; Flue gas after secondary middle pressure waster heat boiler 5 and the heat exchange of water preheater 7 step, is aspirated by circulating fan 3, returns kiln hood who knows bellows bottom cooler 1 by one or more pipeline foldback.
According to residual neat recovering system carbonated drink service condition and field condition, secondary middle pressure waster heat boiler can be arranged separately, also can combine with described low pressure waste heat boiler and arrange.
Secondary middle pressure waster heat boiler in the present invention according to the needs of system, can arrange steam superheater, evaporimeter and soft water heater (not shown); Low pressure waste heat boiler according to the needs of system, can arrange steam superheater, evaporimeter, soft water heater (not shown).
The preferred specific embodiment of the present invention described by reference to the accompanying drawings is above only for illustration of embodiments of the present invention; instead of as the restriction to aforementioned invention object and claims content and scope; every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong to the technology of the present invention and rights protection category.
Claims (10)
1. a cement plant kiln hood who knows cooling machine low-temperature flue gas exhaust heat recovering method, it is characterized in that, adopt circulating fan, the high-temperature flue gas of cooler high temperature section will be who knows from kiln hood, leading introducing time middle pressure waster heat boiler carries out waste heat recovery, introduce water preheater again and carry out heat exchange, last foldback returns kiln hood and who knows bellows bottom cooler, again participates in flue gas heat exchange circulation.
2. cement plant kiln hood who knows a cooling machine low-temperature flue gas exhaust heat recovering method, it is characterized in that, adopts circulating fan, will who knows 185 ~ 400 DEG C of high-temperature flue gas of cooler high temperature section from kiln hood, first introduces time middle pressure waster heat boiler and carries out waste heat recovery; After flue-gas temperature is reduced to 150 ~ 185 DEG C, introduces low pressure waste heat boiler and carry out waste heat recovery; After flue-gas temperature is reduced to 90 ~ 150 DEG C, introduces water preheater and carry out heat exchange; Last foldback returns kiln hood and who knows bellows bottom cooler, again participates in flue gas heat exchange circulation.
3. cement plant kiln hood who knows cooling machine low-temperature flue gas exhaust heat recovering method according to claim 2, it is characterized in that, described time middle pressure waster heat boiler refers to the boiler of main steam operational factor at 1.0 ~ 3.8MPa; Low pressure waste heat boiler refers to the boiler of main steam operational factor at 0.1 ~ 0.5MPa; Water preheater refers to that leaving water temperature is at 80 ~ 135 DEG C, and operating pressure is at the boiler of 1.0 ~ 4.0MPa.
4. cement plant kiln hood who knows a cooling machine low-temperature flue gas residual neat recovering system, it is characterized in that, comprises kiln hood and who knows cooler, waste heat boiler and circulating fan; By flue and described kiln hood, the arrival end of described waste heat boiler who knows that the high temperature section of cooler is communicated with, with described kiln hood, the port of export then who knows that the bellows bottom cooler are communicated with by the flue being provided with circulating fan; Time middle pressure waster heat boiler, water preheater is sequentially set with between the arrival end of waste heat boiler, the port of export; After kiln hood who knows that the high-temperature flue gas of cooler high temperature section introduces time middle pressure waster heat boiler in advance, then introduce water preheater heat exchange; Finally by circulating fan suction, foldback returns kiln hood and who knows bellows bottom cooler.
5. cement plant kiln hood who knows cooling machine low-temperature flue gas residual neat recovering system according to claim 4, it is characterized in that, is communicated with described waste heat boiler entrance point and described kiln hood who knows that the flue of cooler is one or more pipeline.
6. cement plant kiln hood who knows cooling machine low-temperature flue gas residual neat recovering system according to claim 4, it is characterized in that, described low-temperature flue gas waste heat recovery system fume side only arranges a Fans.
7. cement plant kiln hood who knows cooling machine low-temperature flue gas residual neat recovering system according to claim 4, it is characterized in that, the entrance point of described waste heat boiler is expansion chamber.
8. cement plant kiln hood who knows cooling machine low-temperature flue gas residual neat recovering system according to claim 4, it is characterized in that, described time middle pressure waster heat boiler is provided with steam superheater, evaporimeter and soft water heater.
9. cement plant kiln hood who knows cooling machine low-temperature flue gas residual neat recovering system according to claim 1, it is characterized in that, waste heat boiler also comprises the low pressure waste heat boiler be arranged between time middle pressure waster heat boiler and water preheater.
10. cement plant kiln hood who knows cooling machine low-temperature flue gas residual neat recovering system according to claim 9, it is characterized in that, described low pressure waste heat boiler is provided with steam superheater, evaporimeter and soft water heater.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108278905A (en) * | 2018-03-22 | 2018-07-13 | 成都建筑材料工业设计研究院有限公司 | A kind of private station boiler and cement kiln waste heat recovery coupled system |
| KR20210002204U (en) | 2020-03-26 | 2021-10-07 | 킬른에이드 주식회사 | Device for circulating use of exit gas from the kiln cooler |
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| CN204535432U (en) * | 2014-12-31 | 2015-08-05 | 江苏东九重工股份有限公司 | Cement plant kiln hood who knows cooling machine low-temperature flue gas residual neat recovering system |
Cited By (3)
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| CN108278905A (en) * | 2018-03-22 | 2018-07-13 | 成都建筑材料工业设计研究院有限公司 | A kind of private station boiler and cement kiln waste heat recovery coupled system |
| CN108278905B (en) * | 2018-03-22 | 2024-02-02 | 成都建筑材料工业设计研究院有限公司 | Self-contained power station boiler and cement kiln waste heat recovery coupling system |
| KR20210002204U (en) | 2020-03-26 | 2021-10-07 | 킬른에이드 주식회사 | Device for circulating use of exit gas from the kiln cooler |
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Application publication date: 20150701 |