CN202993866U - Bypass system of kiln head boiler and capable of improving waste gas use ratio in cement waste heat power generation - Google Patents
Bypass system of kiln head boiler and capable of improving waste gas use ratio in cement waste heat power generation Download PDFInfo
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- CN202993866U CN202993866U CN2012206260507U CN201220626050U CN202993866U CN 202993866 U CN202993866 U CN 202993866U CN 2012206260507 U CN2012206260507 U CN 2012206260507U CN 201220626050 U CN201220626050 U CN 201220626050U CN 202993866 U CN202993866 U CN 202993866U
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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
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Abstract
A bypass system of a kiln head boiler and capable of improving waste gas use ratio in cement waste heat power generation comprises a grate cooler, a kiln head waste heat boiler inlet flue gas and air valve, the kiln head waste heat boiler, a grate cooler tail portion flue gas and air ventilation door, a dust collector, a bypass ventilation door of the kiln head boiler, a pipe A, a pipe B, a pipe C and a pipe D. An opening of the grate cooler is connected with a flue gas inlet of the kiln head waste heat boiler inlet flue gas and air valve through the pipe A, a flue gas outlet of the kiln head waste heat boiler inlet flue gas and air valve is connected with a flue gas inlet of the kiln head waste heat boiler through the pipe B, the tail portion of the grate cooler is connected with a flue gas inlet of the grate cooler tail portion flue gas and air ventilation door through the pipe C, a flue gas outlet of the grate cooler tail portion flue gas and air ventilation door is connected with a flue gas inlet of the dust collector through the pipe D, a flue gas inlet of the bypass ventilation door of the kiln head boiler is connected with the pipe C through a pipe, and a flue gas outlet of the bypass ventilation door of the kiln head boiler is connected with the pipe B through a pipe. The bypass system can improve waste gas waste heat use ratio, increase energy and reduce environmental pollution.
Description
Technical field
The utility model relates to the system field that utilizes cement afterheat generation, particularly relates to the bypath system that improves the kiln head boiler of exhaust gas utilization in cement afterheat generation.
Background technology
Clinker manufacturing enterprise substantially all belongs to the high energy consumption industry, consumes a large amount of primary energy, and the waste gas and the dust polluting environment that produce are very serious.In the situation that how world today's energy scarcity reduces the direction that energy consumption and environmental contamination reduction are all high energy consumption industry developments, such as the system that utilizes cement afterheat generation, this not only can improve the economic benefit of enterprise self, can also increase social benefit.
At present, in the system that utilizes cement afterheat generation of prior art, basically be all to get wind in castor formula cooler intermediate openings, waste gas enters kiln hood waste heat boiler and carries out heat exchange, utilize superheated steam to generate electricity, dedusting is carried out in the deduster outlet that is connected to original cement wire system by the later low temperature waste gas outlet of kiln hood waste heat boiler heat exchange, then discharges by chimney and enters atmosphere.as shown in Figure 1, the system that utilizes cement afterheat generation of prior art comprises rotary kiln 1, grate-cooler 2, kiln hood waste heat boiler import cigarette air valve 3, kiln hood waste heat boiler 4, kiln hood waste heat boiler outlet cigarette air valve 5, grate-cooler afterbody cigarette wind air door 6, deduster 7, air-introduced machine 8 and chimney 9, rotary kiln 1, grate-cooler 2, kiln hood waste heat boiler import cigarette air valve 3, kiln hood waste heat boiler 4 is connected cigarette air valve 5 and connects successively with kiln hood waste heat boiler, kiln hood waste heat boiler outlet cigarette air valve 5, deduster 7, air-introduced machine 8 is connected with chimney successively and is connected, the afterbody of grate-cooler 2, grate-cooler afterbody cigarette wind air door 6 is connected with deduster successively and is connected.This utilizes the system of cement afterheat generation not high to the utilization rate of cement waste heat, and most of cement waste heat is not utilized and loses, and cement producing line is had certain impact.This system that utilizes cement afterheat generation is when operation, in order rationally to utilize the waste heat of waste gas, when grate-cooler afterbody cigarette wind air door 6 is turned off 100%, the waste heat that theoretically can 100% ground rationally utilizes waste gas, actually this is not so, because when grate-cooler afterbody cigarette wind air door 6 is turned off 100%, pressure-fired can appear in grate-cooler 2 inside, clinker in grate-cooler 2 is existed everywhere, affected the clinker of cement producing line, and the waste gas resistance is large, and the waste gas circulation is not smooth, and waste gas residual heat is not rationally utilized; So for the stable operation of cement line, can only open 70～80% wind area excessively to grate-cooler afterbody cigarette wind air door 6, cause waste gas residual heat reasonably not utilize.If this system is tight grate-cooler afterbody cigarette wind air door 6 complete shut-downs when operation, allow waste gas all get the air port by the middle part and enter kiln hood waste heat boiler 4, because can causing grate-cooler 2, the reasons such as resistance are in process of production pressure-fired, make clinker and dust spill everywhere, affect the output of clinker, and waste-gas heat can not be utilized well.Current, in order to guarantee the normal operation of cement producing line, in the actual moving process of cement producing line, grate-cooler afterbody cigarette wind air door 6 has been opened 70～80% wind area excessively, be to have 70～80% exhausted air quantity directly to enter deduster 7 in grate-cooler 2, only have 20～30% exhausted air quantity to enter kiln hood waste heat boiler 4 and be utilized, cause waste gas residual heat not fully, reasonably utilize, cause the quantity of steam in kiln hood waste heat boiler 4 to reduce, utilize the electric weight of cement afterheat generation also to reduce accordingly.
According to above situation analysis, the problem that the system that utilizes cement afterheat generation of prior art exists is: grate-cooler 2 is produced pressure-fired, makes clinker and dust spill everywhere, affects the output of clinker; Grate-cooler afterbody cigarette wind air door 6 has been opened 70～80% wind area excessively, be to have 70～80% exhausted air quantity directly to enter deduster 7 in grate-cooler 2, only have 20～30% exhausted air quantity to enter kiln hood waste heat boiler 4 and be utilized, cause waste gas residual heat not fully, reasonably utilize.Therefore, people urgently wish the bypath system appearance of the kiln head boiler of raising exhaust gas utilization in a kind of cement afterheat generation.
Summary of the invention
technical problem to be solved in the utility model is: overcoming has 70～80% exhausted air quantity directly to enter deduster in its grate-cooler of the system that utilizes cement afterheat generation of prior art, only having 20～30% exhausted air quantity to enter kiln hood waste heat boiler 4 is utilized, cause waste gas residual heat not fully, the defective of reasonably utilizing, the bypath system that improves the kiln head boiler of exhaust gas utilization in a kind of cement afterheat generation is provided, the bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation has improved the negative pressure of grate-cooler effectively, make grate-cooler no longer include the phenomenon that clinker and dust fly out because of malleation, and the waste gas that effectively utilizes grate-cooler carries out heat recovery, reduced the consumption of the energy, reduced the production cost of product, reduced environmental pollution.
the technical scheme that its technical problem that solves the utility model adopts is: the bypath system that improves the kiln head boiler of exhaust gas utilization in cement afterheat generation, comprise grate-cooler, kiln hood waste heat boiler import cigarette air valve, kiln hood waste heat boiler, grate-cooler afterbody cigarette wind air door and deduster, the bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises the bypass air door of kiln head boiler, the A pipeline, the B pipeline, the C pipeline, the D pipeline, the opening of grate-cooler is connected smoke inlet by the connection of A pipeline with kiln hood waste heat boiler import cigarette air valve, the exhanst gas outlet of kiln hood waste heat boiler import cigarette air valve is connected smoke inlet by the connection of B pipeline with kiln hood waste heat boiler, the afterbody of grate-cooler is connected smoke inlet by the connection of C pipeline with grate-cooler afterbody cigarette wind air door, the exhanst gas outlet of grate-cooler afterbody cigarette wind air door is connected smoke inlet by the connection of D pipeline with deduster, the smoke inlet of the bypass air door of kiln head boiler is by pipeline and C pipeline communication, the exhanst gas outlet of the bypass air door of kiln head boiler is by pipeline and B pipeline communication.
Further, the bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises rotary kiln, rotary kiln be connected grate-cooler and connect.
Further, the bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises kiln hood waste heat boiler outlet cigarette air valve, the exhanst gas outlet of described kiln hood waste heat boiler is connected the cigarette air valve with kiln hood waste heat boiler smoke inlet connects, and the exhanst gas outlet of kiln hood waste heat boiler outlet cigarette air valve is by pipeline and D pipeline communication.
Further, the bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises air-introduced machine and chimney, and described deduster, air-introduced machine are connected with chimney and are connected.
the beneficial effects of the utility model are: 1, the bypass air door that also comprises kiln head boiler due to the utility model, the A pipeline, the B pipeline, the C pipeline, the D pipeline, the opening of grate-cooler is connected smoke inlet by the connection of A pipeline with kiln hood waste heat boiler import cigarette air valve, the exhanst gas outlet of kiln hood waste heat boiler import cigarette air valve is connected smoke inlet by the connection of B pipeline with kiln hood waste heat boiler, the afterbody of grate-cooler is connected smoke inlet by the connection of C pipeline with grate-cooler afterbody cigarette wind air door, the exhanst gas outlet of grate-cooler afterbody cigarette wind air door is connected smoke inlet by the connection of D pipeline with deduster, the smoke inlet of the bypass air door of kiln head boiler is by pipeline and C pipeline communication, the exhanst gas outlet of the bypass air door of kiln head boiler is by pipeline and B pipeline communication, the utility model of said structure is in actual moving process, can turn off 100% to grate-cooler afterbody cigarette wind air door, namely close grate-cooler afterbody cigarette wind air door, again the bypass air door of kiln head boiler is adjusted to rational position, solved the problem of grate-cooler flying dust, waste gas in grate-cooler all enters kiln hood waste heat boiler and is utilized, waste gas residual heat has also obtained reasonable utilization, the cement afterheat generation amount is improved significantly.Test according to the example (take 2500t/d as example) of a reality, its generated energy improves 500kw.h, and the economic benefit that this has not only improved enterprise self also increases social benefit.2, the utility model has improved the negative pressure of grate-cooler effectively, makes grate-cooler no longer include clinker and dust because of the phenomenon that malleation flies out, and has reduced environmental pollution, and has reduced the waste of cement products.3, the waste gas that effectively utilizes grate-cooler due to the utility model carries out heat recovery, increased thus generated energy, reach the comprehensive utilization fume afterheat, improve the purpose of fume afterheat utilization rate, and reached energy efficient, reduce the purpose of production cost.4, the utility model carries out comprehensive reutilization to the waste gas residual heat of grate-cooler, meets the requirement of energy-conserving and environment-protective.5, the utility model is reasonable in design, and is practical, has promotion and use value widely in field of cement production.In a word, the utility model has effectively solved grate-cooler generation pressure-fired and has caused flying dust and grate-cooler waste gas there is no the problem of rationally utilizing, effectively utilize the waste gas residual heat of grate-cooler in cement producing line, reach the purpose of comprehensive reutilization, reduced the consumption of the energy, reduced the production cost of product, improved the economic benefit of manufacturing enterprise, reduce environmental pollution, and reached energy savings, improved the purpose of social benefit.
Description of drawings
Fig. 1 is the structural representation of the system that utilizes cement afterheat generation of prior art;
Fig. 2 is structural representation of the present utility model;
Description of reference numerals in Fig. 1 and Fig. 2: 1---rotary kiln; 2---grate-cooler; 3---kiln hood waste heat boiler import cigarette air valve; 4---kiln hood waste heat boiler; 5---kiln hood waste heat boiler outlet cigarette air valve; 6---grate-cooler afterbody cigarette wind air door; 7---deduster; 8---air-introduced machine; 9---chimney; 10---the bypass air door of kiln head boiler; 11---the A pipeline; 12---the B pipeline; 13---the C pipeline; 14---the D pipeline.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail; be not that practical range of the present utility model is confined to this; this embodiment does not limit protection domain of the present utility model; those who are familiar with this art should belong to protection domain of the present utility model in not deviating from the lower rational variation of carrying out of protection domain of the present utility model and spirit.
as shown in Figure 2, improve the bypath system of the kiln head boiler of exhaust gas utilization in the described a kind of cement afterheat generation of the present embodiment, comprise grate-cooler 2, kiln hood waste heat boiler import cigarette air valve 3, kiln hood waste heat boiler 4, grate-cooler afterbody cigarette wind air door 6 and deduster 7, the bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises the bypass air door 10 of kiln head boiler, A pipeline 11, B pipeline 12, C pipeline 13, D pipeline 14, the smoke inlet that the opening of grate-cooler 2 is connected with kiln hood waste heat boiler import cigarette air valve connects by A pipeline 11, the smoke inlet that the exhanst gas outlet of kiln hood waste heat boiler import cigarette air valve 3 is connected with kiln hood waste heat boiler connects by B pipeline 12, the smoke inlet that the afterbody of grate-cooler 2 is connected with grate-cooler afterbody cigarette wind air door connects by C pipeline 13, the smoke inlet that the exhanst gas outlet of grate-cooler afterbody cigarette wind air door 6 is connected with deduster connects by D pipeline 14, the smoke inlet of the bypass air door 10 of kiln head boiler is communicated with C pipeline 13 by pipeline, the exhanst gas outlet of the bypass air door 10 of kiln head boiler is communicated with B pipeline 12 by pipeline.The bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises rotary kiln 1, rotary kiln 1 be connected grate-cooler 2 and connect.The bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises kiln hood waste heat boiler outlet cigarette air valve 5, the exhanst gas outlet of described kiln hood waste heat boiler 4 is connected cigarette air valve 5 with kiln hood waste heat boiler smoke inlet connects, and the exhanst gas outlet of kiln hood waste heat boiler outlet cigarette air valve 5 is communicated with D pipeline 14 by pipeline.The bypath system that improves the kiln head boiler of exhaust gas utilization in this cement afterheat generation also comprises air-introduced machine 8 and chimney 9, and described deduster 7, air-introduced machine 8 are connected with chimney and are connected successively.The present embodiment of said structure is in actual moving process, can turn off 100% to grate-cooler afterbody cigarette wind air door 6, namely close grate-cooler afterbody cigarette wind air door 6, again the bypass air door 10 of kiln head boiler is adjusted to rational position, solved the problem of grate-cooler 2 flying dusts, waste gas in grate-cooler 2 all enters kiln hood waste heat boiler 4 and is utilized, and waste gas residual heat has also obtained reasonable utilization, and the cement afterheat generation amount is improved significantly.Test according to the example (take 2500t/d as example) of a reality, its generated energy improves 500kw.h, and the economic benefit that this has not only improved enterprise self also increases social benefit.In a word, the present embodiment has effectively solved grate-cooler 2 generation pressure-fireds and has caused flying dust and grate-cooler 2 waste gas there is no the problem of rationally utilizing, effectively utilize the waste gas residual heat of grate-cooler 2 in cement producing line, reach the purpose of comprehensive reutilization, reduced the consumption of the energy, reduced the production cost of product, improved the economic benefit of manufacturing enterprise, reduce environmental pollution, and reached energy savings, improved the purpose of social benefit.
The above is only a preferred embodiment of the present utility model, therefore all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, all is included in the protection domain of the utility model patent application.
Claims (4)
1. improve the bypath system of the kiln head boiler of exhaust gas utilization in cement afterheat generation, comprise grate-cooler (2), kiln hood waste heat boiler import cigarette air valve (3), kiln hood waste heat boiler (4), grate-cooler afterbody cigarette wind air door (6) and deduster (7), it is characterized in that: the bypass air door (10) that also comprises kiln head boiler, A pipeline (11), B pipeline (12), C pipeline (13), D pipeline (14), the opening of grate-cooler (2) is connected 3 with kiln hood waste heat boiler import cigarette air valve) smoke inlet connect by A pipeline (11), the exhanst gas outlet of kiln hood waste heat boiler import cigarette air valve (3) is connected 4 with kiln hood waste heat boiler) smoke inlet connect by B pipeline (12), the afterbody of grate-cooler (2) is connected 6 with grate-cooler afterbody cigarette wind air door) smoke inlet connect by C pipeline (13), the exhanst gas outlet of grate-cooler afterbody cigarette wind air door (6) is connected 7 with deduster) smoke inlet connect by D pipeline (14), the smoke inlet of the bypass air door (10) of kiln head boiler is communicated with C pipeline (13) by pipeline, the exhanst gas outlet of the bypass air door (10) of kiln head boiler is communicated with B pipeline (12) by pipeline.
2. improve the bypath system of the kiln head boiler of exhaust gas utilization in cement afterheat generation according to claim 1, it is characterized in that: also comprise rotary kiln (1), rotary kiln (1) and grate-cooler (2) connection of being connected.
3. improve the bypath system of the kiln head boiler of exhaust gas utilization in cement afterheat generation according to claim 1, it is characterized in that: also comprise kiln hood waste heat boiler outlet cigarette air valve (5), the exhanst gas outlet of described kiln hood waste heat boiler (4) is connected cigarette air valve (5) with kiln hood waste heat boiler smoke inlet connects, and the exhanst gas outlet of kiln hood waste heat boiler outlet cigarette air valve (5) is communicated with D pipeline (14) by pipeline.
4. improve the bypath system of the kiln head boiler of exhaust gas utilization in cement afterheat generation according to claim 1, it is characterized in that: also comprise air-introduced machine (8) and chimney (9), described deduster (7), air-introduced machine (8) are connected 9 with chimney) connect successively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206260507U CN202993866U (en) | 2012-11-23 | 2012-11-23 | Bypass system of kiln head boiler and capable of improving waste gas use ratio in cement waste heat power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012206260507U CN202993866U (en) | 2012-11-23 | 2012-11-23 | Bypass system of kiln head boiler and capable of improving waste gas use ratio in cement waste heat power generation |
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| CN202993866U true CN202993866U (en) | 2013-06-12 |
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| CN2012206260507U Expired - Fee Related CN202993866U (en) | 2012-11-23 | 2012-11-23 | Bypass system of kiln head boiler and capable of improving waste gas use ratio in cement waste heat power generation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307893A (en) * | 2013-06-21 | 2013-09-18 | 成都建筑材料工业设计研究院有限公司 | Waste heat recovery system of grate cooler |
| CN104654807A (en) * | 2015-02-05 | 2015-05-27 | 山东水泥厂有限公司 | Cement kiln head low-temperature air recycling equipment and method |
| CN106907935A (en) * | 2017-04-18 | 2017-06-30 | 长沙紫宸科技开发有限公司 | A kind of carbon dioxide energy storage equipment of accumulation grate-cooler heat energy |
| CN110274485A (en) * | 2019-07-10 | 2019-09-24 | 溧阳天山水泥有限公司 | A kind of bypass discharge waste gas disposal system and method |
| CN111623641A (en) * | 2020-05-27 | 2020-09-04 | 长沙矿冶研究院有限责任公司 | Comprehensive recovery and utilization device and method for reduction roasting flue gas and roasting finished product waste heat |
| CN111792859A (en) * | 2020-07-24 | 2020-10-20 | 天津水泥工业设计研究院有限公司 | Cement production system capable of reducing heat loss of surface of kiln cylinder and heat enthalpy loss of residual wind without kiln head |
| CN112066713A (en) * | 2020-09-17 | 2020-12-11 | 成都建筑材料工业设计研究院有限公司 | Kiln head waste gas bypass air discharge waste heat utilization and coarse grain material recovery system and method |
-
2012
- 2012-11-23 CN CN2012206260507U patent/CN202993866U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307893A (en) * | 2013-06-21 | 2013-09-18 | 成都建筑材料工业设计研究院有限公司 | Waste heat recovery system of grate cooler |
| CN103307893B (en) * | 2013-06-21 | 2015-09-16 | 成都建筑材料工业设计研究院有限公司 | A kind of waste heat recovery system of grate cooler |
| CN104654807A (en) * | 2015-02-05 | 2015-05-27 | 山东水泥厂有限公司 | Cement kiln head low-temperature air recycling equipment and method |
| CN106907935A (en) * | 2017-04-18 | 2017-06-30 | 长沙紫宸科技开发有限公司 | A kind of carbon dioxide energy storage equipment of accumulation grate-cooler heat energy |
| CN110274485A (en) * | 2019-07-10 | 2019-09-24 | 溧阳天山水泥有限公司 | A kind of bypass discharge waste gas disposal system and method |
| CN111623641A (en) * | 2020-05-27 | 2020-09-04 | 长沙矿冶研究院有限责任公司 | Comprehensive recovery and utilization device and method for reduction roasting flue gas and roasting finished product waste heat |
| CN111792859A (en) * | 2020-07-24 | 2020-10-20 | 天津水泥工业设计研究院有限公司 | Cement production system capable of reducing heat loss of surface of kiln cylinder and heat enthalpy loss of residual wind without kiln head |
| CN112066713A (en) * | 2020-09-17 | 2020-12-11 | 成都建筑材料工业设计研究院有限公司 | Kiln head waste gas bypass air discharge waste heat utilization and coarse grain material recovery system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |