CN201688713U - Flue gas temperature regulation apparatus for power generation with residual sintering heat - Google Patents

Flue gas temperature regulation apparatus for power generation with residual sintering heat Download PDF

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Publication number
CN201688713U
CN201688713U CN2010201800478U CN201020180047U CN201688713U CN 201688713 U CN201688713 U CN 201688713U CN 2010201800478 U CN2010201800478 U CN 2010201800478U CN 201020180047 U CN201020180047 U CN 201020180047U CN 201688713 U CN201688713 U CN 201688713U
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China
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flue gas
temperature
low
arm
house steward
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Expired - Lifetime
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CN2010201800478U
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Chinese (zh)
Inventor
刘庸
李长兴
张全申
杨晓明
吕新鹏
李文武
王代军
兰军
许亮
刘洋
李森
唐佳润
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Beijing Shougang International Engineering Technology Co Ltd
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Beijing Shougang International Engineering Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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Abstract

The utility model relates to a flue gas temperature regulation apparatus for residual sintering heat power generation, which belongs to the technical field of residual heat power generation. The flue gas temperature regulation apparatus comprises a low-temperature flue gas main, temperature sensors, low-temperature flue gas branch tubes, a medium-temperature flue gas branch tubes, a high-temperature flue gas branch tube, a flue gas release valve, a high-temperature flue gas branch tube, a mixed air valve, a residual heat boiler, a circulating flue gas main, three-way flue gas valves, a low-temperature hood, a medium-temperature hood, a high-temperature hood, a discharge chute, a cooler, fans, flue valves, a circulating fan and partitions, and is characterized in that three to five partitions (27) are mounted in the low-temperature hood (16) and the medium-temperature hood (17) to divide flue gas into areas with different temperatures. Three to five medium-temperature flue gas branch tubes are mounted on the medium-temperature hood (17). The utility model has the advantages that: in the process of the circulation of flue gas, the apparatus can regulate the temperature of the flue gas entering the residual heat boiler, so that the temperature can be stabilized within a designed range, and thereby the stability and safety of a residual sintering heat power generation system can be enhanced.

Description

The sintering waste heat generating flue gas temperature regulating device
Technical field
The utility model belongs to the cogeneration technology field, and a kind of sintering waste heat generating flue gas temperature regulating device particularly is provided.
Background technology
Along with the maximization of China's sintering machine, the waste heat that produces in the sintering deposit cooling procedure is also more and more.Utilize sintering waste heat generating to become the major technique that China's sintering industry energy-saving reduces discharging, in progressively promoting, but owing to be subjected to the influence of SINTERING PRODUCTION, the flue-gas temperature fluctuation is bigger, sometimes even can differ more than 100 ℃, this situation directly has influence on the normal operation of sintering waste heat generating, therefore flue-gas temperature is regulated.Particularly when flue-gas temperature is lower than design load, flue-gas temperature is regulated, flue-gas temperature is stabilized in the scope of design load.Stability, the security that improves sintering waste heat generating is of great practical significance.Only reclaiming senior middle school's temperature fume afterheat in the sintering waste heat generating at present, low-temperature flue gas is given it up in addition, this has limited the scope of waste heat recovery, and the waste heat recovery amount is less.
Summary of the invention
The purpose of this utility model is to provide a kind of sintering waste heat generating flue gas temperature regulating device, has enlarged the scope of waste heat recovery.
The utility model comprises that low-temperature flue gas house steward, temperature sensor, low-temperature flue gas arm, middle temperature flue gas arm, high-temperature flue gas arm, flue gas diffuse valve, high-temperature flue gas arm, mixer selector valve, waste heat boiler, circulating flue gas house steward, flue gas triple valve, low temperature petticoat pipe, middle temperature petticoat pipe, high temperature petticoat pipe, blanking chute, cooler, air blast, chimney valve, bellows, circulating fan, partition apparatus.
In low temperature petticoat pipe and middle temperature petticoat pipe, 3~5 partition apparatus are installed, flue gas is separated in zones of different by the height of temperature, give the adjusting of flue-gas temperature and the condition that provides rationally is provided.
Warm flue gas arm in 3~5 is installed on middle temperature petticoat pipe, middle temperature flue gas can be flowed among the high-temperature flue gas house steward.
In the entrance and exit of low-temperature flue gas house steward, waste heat boiler, the outlet of circulating fan, the low-temperature flue gas arm, in all be equipped with temperature sensor on warm flue gas arm and the high-temperature flue gas arm so that flue-gas temperature is monitored, for the adjusting of flue-gas temperature provides parameter.
Be equipped with flue gas on the high-temperature flue gas house steward and diffuse valve and mixer selector valve.
The circulating fan outlet conduit is received the adapter side of 1# air blast and 2# air blast and bellows respectively, and is equipped with chimney valve on two arms.
All be equipped with the flue gas triple valve on the low-temperature flue gas arm, the other end of flue gas triple valve communicates with atmosphere.
Be equipped with the flue gas triple valve on the warm flue gas arm in the warm flue gas arm and the 3rd in second, the other end of flue gas triple valve links to each other with the low-temperature flue gas house steward.When high-temperature flue gas house steward exit gas temperature was lower than design load, middle temperature flue gas that can temperature is on the low side was transported among the low-temperature flue gas house steward by the aperture of controlling the flue gas triple valve, to improve the flue-gas temperature of high-temperature flue gas house steward outlet.
Sintering deposit is cooled in the sintering deposit cooling procedure, and cooling medium air and flue gas are heated, and by the height of temperature, flue gas is sent into the high temperature petticoat pipe respectively, in middle temperature petticoat pipe and the low temperature petticoat pipe.In warm flue gas through in warm flue gas arm flow among the high-temperature flue gas house steward, high-temperature flue gas flows into the high-temperature flue gas house steward through the high-temperature flue gas arm, both mix the back and flow into waste heat boiler.Produce steam at this waste heat that reclaims flue gas, be used for the generating of driving steam turbine generating set.
One of characteristics of the present utility model: be that middle temperature flue gas is flowed among the high-temperature flue gas house steward 9 by warm flue gas arm 6,7,8 in some, the other end of the flue gas triple valve 15 in being installed on the warm flue gas arm 6,7 links to each other with low-temperature flue gas house steward 1.When high-temperature flue gas house steward 9 exit gas temperatures are lower than the design load scope, open flue gas triple valve 15 the lower middle temperature flue gas of temperature is flowed among the low-temperature flue gas house steward 1.So both can improve the flue-gas temperature of high-temperature flue gas house steward 9 outlets, can improve the flue-gas temperature among the low-temperature flue gas house steward 1 again.Because the flue-gas temperature that enters circulating fan 26 has improved, the also corresponding middle temperature flue gas after the heat exchange and the temperature of high-temperature flue gas of having improved.This is for the flue-gas temperature of stablizing high-temperature flue gas house steward 9 outlets very favourable (annotate: warm flue-gas temperature is higher than the circulating flue gas temperature in general)
Two of characteristics of the present utility model: be some flue gas partition apparatus 27. to be installed flue gas to be separated in different zones by the height of temperature in low temperature petticoat pipe 16 and middle temperature petticoat pipe 17, this gives adjusting of flue-gas temperature and the condition that provides rationally is provided.
Advantage of the present utility model is, can regulate the flue-gas temperature that enters waste heat boiler in the flue gas recirculation process, makes it to be stabilized within the scope of design.Can improve the stability and the security of sintering waste heat generating system.
Description of drawings
Fig. 1 is a structural representation of the present utility model.Wherein, low-temperature flue gas house steward 1, temperature sensor 2, low-temperature flue gas arm 3,4,5, in warm flue gas arm 6,7,8, high-temperature flue gas arm 9, flue gas diffuse valve 10, high-temperature flue gas arm 11, mixer selector valve 12, waste heat boiler 13, circulating flue gas house steward 14, flue gas triple valve 15, low temperature petticoat pipe 16, middle temperature petticoat pipe 17, high temperature petticoat pipe 18, blanking chute 19, cooler 20, former 3# air blast 21, former 2# air blast 22, chimney valve 23, former 1# air blast 24, bellows 25, circulating fan 26, partition apparatus 27.
The specific embodiment
The utility model comprises low-temperature flue gas house steward 1, temperature sensor 2, low-temperature flue gas arm 3,4,5, in warm flue gas arm 6,7,8, high-temperature flue gas arm 9, flue gas diffuse valve 10, high-temperature flue gas arm 11, mixer selector valve 12, waste heat boiler 13, circulating flue gas house steward 14, flue gas triple valve 15, low temperature petticoat pipe 16, middle temperature petticoat pipe 17, high temperature petticoat pipe 18, blanking chute 19, cooler 20, former 3# air blast 21, former 2# air blast 22, chimney valve 23, former 1# air blast 24, bellows 25, circulating fan 26, partition apparatus 27.
3~5 partition apparatus 27 are installed in low temperature petticoat pipe 16 and middle temperature petticoat pipe 17 flue gas is separated in zones of different by the height of temperature, give the adjusting of flue-gas temperature and the condition that provides rationally is provided.
Warm flue gas arm 6,7,8 in 3~5 is installed on middle temperature petticoat pipe 17, middle temperature flue gas can be flowed among the high-temperature flue gas house steward 9.Be equipped with flue gas triple valve 15 on middle temperature flue gas arm 6,7, the other end of flue gas triple valve 15 links to each other with low-temperature flue gas house steward 1.When high-temperature flue gas house steward 9 exit gas temperatures were lower than design load, middle temperature flue gas that can temperature is on the low side was transported among the low-temperature flue gas house steward 1 by the aperture of controlling flue gas triple valve 15, to improve the flue-gas temperature of high-temperature flue gas house steward 9 outlets.
In the entrance and exit of low-temperature flue gas house steward 1, waste heat boiler 13, the outlet of circulating fan 26, low-temperature flue gas arm 3,4,5, in all be equipped with temperature sensor 2 on warm flue gas arm 6,7,8 and the high-temperature flue gas arm 11, so that flue-gas temperature is monitored, for the adjusting of flue-gas temperature provides parameter.
Be equipped with flue gas on the high-temperature flue gas house steward 9 and diffuse valve 10 and mixer selector valve 12; Circulating fan 26 outlet conduits are received the adapter side of 1# air blast 24 and 2# air blast 22 and bellows 25 respectively, and are equipped with chimney valve 23 on two arms.
Be equipped with flue gas triple valve 15 on middle temperature flue gas arm 6,7, the other end of flue gas triple valve 15 links to each other with low-temperature flue gas house steward 1.When high-temperature flue gas house steward 9 exit gas temperatures were lower than design load, middle temperature flue gas that can temperature is on the low side was transported among the low-temperature flue gas house steward 1 by the aperture of controlling flue gas triple valve 15, to improve the flue-gas temperature of high-temperature flue gas house steward 9 outlets.
Respectively be equipped with flue gas triple valve 15 on the low-temperature flue gas arm 3,4,5, the other end of flue gas triple valve 15 communicates with atmosphere.
Sintering deposit is cooled in the sintering deposit cooling procedure, and cooling medium air and flue gas are heated, and by the height of temperature, flue gas is sent into high temperature petticoat pipe 18 respectively, in middle temperature petticoat pipe 17 and the low temperature petticoat pipe 16.In warm flue gas through in warm flue gas arm 6,7,8 flow among the high-temperature flue gas house stewards 9, high-temperature flue gas flows into the high-temperature flue gas house stewards through high-temperature flue gas arm 11, both mix the back and flow into waste heat boiler 13.Produce steam at this waste heat that reclaims flue gas, be used for the generating of driving steam turbine generating set.
Flue gas in the low temperature petticoat pipe 16 flows among the low-temperature flue gas house steward 1 through low-temperature flue gas arm 3,4,5, and finally flows into the inlet of circulating fan 26.
Under nominal situation, sintering deposit enters cooler 20 through blanking chute 19.Former 1# air blast 24, former 2# air blast 22, former 3# air blast 21 blast air in the cooler 20, exchange with sintering deposit, and the flue gas of generation enters respectively in high temperature petticoat pipe 18, middle temperature petticoat pipe 17 and the low temperature petticoat pipe 16 by the height of temperature.Wherein, high-temperature flue gas and middle temperature flue gas flow in the high-temperature flue gas house steward 9 through high-temperature flue gas arm 11 and middle temperature flue gas arm 6,7,8 respectively.The flue gas that enters after both mix in the waste heat boiler 13. low temperature petticoat pipes 16 flows among the low-temperature flue gas house steward 1 through low-temperature flue gas arm 3,4,5, low-temperature flue gas final and that waste heat boiler 13 is discharged converges, and by circulating fan 26 it is blasted in the cooler 20 through bellows 25 and cools off sintering deposit.So far finish the cyclic process of flue gas.At this moment former 1# air blast 2 and former 2# air blast 22 are stopped transport.Changed into by circulating fan 24 and blasted circulating flue gas by blasting air originally.Flue gas diffuses valve 10 simultaneously, mixer selector valve 12 is closed, and chimney valve 23 is opened, and the flue gas triple valve 15 on the low-temperature flue gas arm 3,4,5 does not link to each other with atmosphere, and the power of flue gas recirculation is at this moment provided by circulating fan 26.
When waste heat boiler 13 is stopped transport, flue gas triple valve 15 on the low-temperature flue gas arm 3,4,5 communicates with atmosphere, diffuse flue gas, the flue gas of high-temperature flue gas arm 11 and middle temperature flue gas arm 6,7,8 flows into high-temperature flue gas house steward 9, and diffuse valve 10 via flue gas and diffuse, and the flue gas triple valve 15 on the middle temperature flue gas arm 6,7 does not link to each other with low-temperature flue gas house steward 1.
When high-temperature flue gas house steward 9 exit gas temperatures were higher than design load, under the control of temperature sensor 2, the aperture infiltration cold air of regulating mixer selector valve 12 was adjusted to high-temperature flue gas house steward 9 exit gas temperatures within the design load.
When high-temperature flue gas house steward 9 exit gas temperatures are lower than design load, size according to temperature gap, the aperture of the flue gas triple valve 15 in opening successively on the warm flue gas arm 6 or 7, the middle temperature flue gas that temperature is lower flows among the low-temperature flue gas house steward 1 by flue gas triple valve 15, to improve the flue-gas temperature of high-temperature flue gas house steward 9 outlets.Flue-gas temperature in this process among the low-temperature flue gas house steward 1 will be enhanced, the flue-gas temperature that is blasted cooler by circulating fan 26 also will be enhanced, and then also improved the middle temperature flue gas after the heat exchange and the temperature of high-temperature flue gas, high-temperature flue gas house steward 9 exit gas temperatures are stabilized in the design load scope.Therefore the vapor (steam) temperature and the pressure of waste heat boiler 13 generations also are stabilized in the design load.

Claims (3)

1. a sintering waste heat generating flue gas temperature regulating device comprises that low-temperature flue gas house steward, temperature sensor, low-temperature flue gas arm, middle temperature flue gas arm, high-temperature flue gas arm, flue gas diffuse valve, high-temperature flue gas arm, mixer selector valve, waste heat boiler, circulating flue gas house steward, flue gas triple valve, low temperature petticoat pipe, middle temperature petticoat pipe, high temperature petticoat pipe, blanking chute, cooler, air blast, chimney valve, bellows, circulating fan, partition apparatus; It is characterized in that, 3~5 partition apparatus (27) are installed in low temperature petticoat pipe (16) and middle temperature petticoat pipe (17), with the zone of flue gas separation or different temperatures, warm flue gas arm in middle temperature petticoat pipe (17) is upward installed 3~5;
In the entrance and exit of low-temperature flue gas house steward (1), waste heat boiler (13), the outlet of circulating fan (26), the low-temperature flue gas arm all is equipped with temperature sensor (2) on middle temperature flue gas arm and the high-temperature flue gas arm (11);
Be equipped with flue gas on the high-temperature flue gas house steward (9) and diffuse valve (10) and mixer selector valve (12);
Circulating fan (26) outlet conduit is received the adapter side of 1# air blast (24) and 2# air blast (22) and bellows (25) respectively, and is equipped with chimney valve (23) on two arms.
2. device according to claim 1 is characterized in that, all is equipped with flue gas triple valve (15) on the low-temperature flue gas arm, and the other end of flue gas triple valve (15) communicates with atmosphere.
3. device according to claim 1 is characterized in that, is equipped with flue gas triple valve (15) in second in the warm flue gas arm (6) and the 3rd on the warm flue gas arm (7), and the other end of flue gas triple valve (15) links to each other with low-temperature flue gas house steward (1).
CN2010201800478U 2010-04-29 2010-04-29 Flue gas temperature regulation apparatus for power generation with residual sintering heat Expired - Lifetime CN201688713U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900380A (en) * 2013-11-10 2014-07-02 山东嘉诺电子有限公司 Thermal cycle device for sintering soft magnetic ferrite cores
CN109519910A (en) * 2017-09-19 2019-03-26 焦武军 A kind of energy-saving fast semi-packaged boiler that subregion precisely conducts heat
CN109827167A (en) * 2019-01-30 2019-05-31 曾蒙汉 A kind of string type direct combustion cascaded power generating system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900380A (en) * 2013-11-10 2014-07-02 山东嘉诺电子有限公司 Thermal cycle device for sintering soft magnetic ferrite cores
CN109519910A (en) * 2017-09-19 2019-03-26 焦武军 A kind of energy-saving fast semi-packaged boiler that subregion precisely conducts heat
CN109827167A (en) * 2019-01-30 2019-05-31 曾蒙汉 A kind of string type direct combustion cascaded power generating system and method

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Granted publication date: 20101229