CN101672578A - Power generation system using waste heat of sintering circular cooler - Google Patents
Power generation system using waste heat of sintering circular cooler Download PDFInfo
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- CN101672578A CN101672578A CN200910210193A CN200910210193A CN101672578A CN 101672578 A CN101672578 A CN 101672578A CN 200910210193 A CN200910210193 A CN 200910210193A CN 200910210193 A CN200910210193 A CN 200910210193A CN 101672578 A CN101672578 A CN 101672578A
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Abstract
A power generation system using waste heat of a sintering circular cooler comprises a first fume hood, a second fume hood, an air pipe, a first air blower, a first fume pipeline, a double-pressure waste heat boiler and a steam compensating steam turbine. The first fume hood is arranged at a low temperature zone of a circular cooler; the second fume hood is arranged at a high temperature zone of the circular cooler; the air pipe is communicated with the first fume hood and a cooling air conduit at the high temperature zone of the circular cooler; the first air blower superposes outdoor coolingair with fume discharged from the low temperature zone of the circular cooler in the air pipe as cooling air of the high temperature zone of the circular cooler; the first fume pipeline is used for communicating the second fume hood with an air line of the double-pressure waste heat boiler; the double-pressure waste heat boiler is used for converting the fume in the first fume pipeline into high pressure steam and lower pressure steam, the high pressure steam enters a high pressure section of the steam compensating steam turbine for doing work, and the lower pressure steam enters a low pressure section of the steam compensating steam turbine for doing work; and the steam compensating steam turbine is used for driving a generating unit to generate power. The invention provides a power generation system using waste heat of a sintering circular cooler, and the system is used for improving inlet temperature of the waste heat boiler without affecting properties of sintering processes.
Description
Technical field
The present invention relates to the utilization of sintering circular-cooler waste gas, particularly a kind of power generation system using waste heat of sintering circular cooler.
Background technology
Existing, steel industry uses more sintering circuit central cooler power generation system using waste heat to have:
Referring to the existing first kind of sintering circuit central cooler power generation system using waste heat of Fig. 1.This system uses two pressure waste heat boiler 11a, steam compensating turbine 13a.Existing first kind of sintering circuit central cooler power generation system using waste heat only utilized high temperature section fume emission mouth 8a discharged flue gas.Because high temperature section fume emission mouth 8a discharges the temperature of flue gas and is generally about 360 ℃, the main steam condition of waste heat boiler is lower like this, thereby generated energy is not high.Lower from power consumption rate, from power consumption rate generally＞11%.
The power consumption of the power consumption of total power consumption=blower fan+power station other parts.
From power consumption rate=total power consumption/gross generation.
Referring to the existing second kind of sintering circuit central cooler power generation system using waste heat of Fig. 2.The difference of above-mentioned relatively first kind of system of this system is, has increased the boiler waste gas recirculating process.Existing second kind of sintering circuit central cooler power generation system using waste heat will return by boiler induced-draft fan 12a through the waste gas of two pressure waste heat boiler 11a and guide to high temperature section in the bellows of low-temperature zone.Owing to utilized the waste gas of two pressure waste heat boilers, make high temperature section fume emission mouth 8a exhaust gas discharged can be increased to about 400 ℃, can improve two EGTs of pressing exhaust-heat boiler inlet.Though the main steam condition of two pressure waste heat boilers also can correspondingly improve, generated energy is higher than above-mentioned first kind of system, has second kind of sintering circuit central cooler power generation system using waste heat now from power consumption rate generally＞16%, and generated energy still is subjected to certain restriction.
Notification number is the utility model patent of CN201072303Y, discloses belt-cooling machine tail flue gas EGR in a kind of sintering waste heat generating.This patent is by having the low-temperature flue gas connecting leg to be connected the circulation smoke pipe on the low-temperature space chimney at least one low-temperature space petticoat pipe adjacent with the high-temperature region petticoat pipe, the circulation smoke pipe connects the low-temperature flue gas inlet pipe, and this low-temperature flue gas inlet pipe is connected to the belt-cooling machine air compartment of high temperature petticoat pipe correspondence.Though, make the EGT of high-temperature region that a spot of raising be arranged because the circulation smoke pipe connects the low-temperature flue gas inlet pipe, make that follow-up equipment---the main steam condition of waste heat boiler is still lower, generated energy does not obviously improve.And, make low-temperature space very poor to the cooling effect of material because the circulation smoke pipe is connected the low-temperature flue gas inlet pipe.
Therefore, how providing a kind of power generation system using waste heat of sintering circular cooler, under the prerequisite that does not influence the sintering process performance, improve the inlet temperature of waste heat boiler waste gas, is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide a kind of power generation system using waste heat of sintering circular cooler, be used under the prerequisite that does not influence the sintering process performance, improve the inlet temperature of waste heat boiler waste gas.
The invention provides a kind of power generation system using waste heat of sintering circular cooler, described system comprises:
First flue gas cover is arranged on and is used to collect the low-temperature space flue gas on the central cooler low-temperature space;
Second flue gas cover is arranged on and is used to collect the high-temperature region flue gas on the central cooler high-temperature region;
Airduct is used to be communicated with described first flue gas cover and central cooler high-temperature region cooling air channel;
First air blast, with the flue gas that the central cooler low-temperature space in the described airduct is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe superposes, common cooling air as the central cooler high-temperature region;
First flue gas pipeline is used to be communicated with described second flue gas cover and two pressure waste heat boiler blast pipe;
Described pair of pressure waste heat boiler is used for the flue gas of first flue gas pipeline is converted into high steam and low-pressure steam, and described high steam enters the high pressure section acting of steam compensating turbine, and described low-pressure steam enters the low pressure stage acting of steam compensating turbine;
Described steam compensating turbine is used to drive generating set and generates electricity.
Preferably, on described first flue gas pipeline, deduster is set.
Preferably, on described airduct, air-valve is set.
Preferably, on described first flue gas pipeline, air-valve is set.
Preferably, on the described outdoor cooling air blast pipe air-valve is set.
The present invention also provides a kind of power generation system using waste heat of sintering circular cooler, and described system comprises:
First flue gas cover is arranged on and is used to collect the low-temperature space flue gas on the central cooler low-temperature space;
Second flue gas cover is arranged on and is used to collect the high-temperature region flue gas on the central cooler high-temperature region;
The 3rd flue gas cover is arranged on and is used for collecting the warm area flue gas in the central cooler on the warm area;
Airduct is used to be communicated with described first flue gas cover and central cooler high-temperature region cooling air channel, or, be communicated with described the 3rd flue gas cover and central cooler high-temperature region cooling air channel;
First flue gas pipeline is used to be communicated with described second flue gas cover and two pressure waste heat boiler blast pipe;
Second flue gas pipeline is used to be communicated with described the 3rd flue gas cover and two pressure waste heat boiler blast pipe;
First air blast, with the flue gas that the central cooler low-temperature space in the described airduct is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe superposes, common cooling air as the central cooler high-temperature region;
Second air blast, with the flue gas that the central cooler low-temperature space in the described airduct is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe superposes, common cooling air as warm area in the central cooler;
Described pair of pressure waste heat boiler, be used for the flue gas of first flue gas pipeline and second flue gas pipeline is converted into high steam and low-pressure steam, described high steam enters the high pressure section acting of steam compensating turbine, and described low-pressure steam enters the low pressure stage acting of steam compensating turbine;
Described steam compensating turbine is used to drive generating set and generates electricity.
Preferably, on described first flue gas pipeline, deduster is set.
Preferably, described first flue gas pipeline links to each other with the superheater of described pair of pressure waste heat boiler;
Described second flue gas pipeline links to each other with the sub-high pressure evaporimeter of described pair of pressure waste heat boiler.
Preferably, on described airduct, air-valve is set.
Preferably, on described first flue gas pipeline, air-valve is set.
Preferably, on the described outdoor cooling air blast pipe air-valve is set.
Compared with prior art, the present invention has the following advantages:
The airduct of the described power generation system using waste heat of sintering circular cooler of the embodiment of the invention is communicated with described first flue gas cover and central cooler high-temperature region cooling air channel, by the flue gas of first air blast with the discharge of the central cooler low-temperature space in the airduct, with the outdoor cooling air stack that outdoor cooling air blast pipe enters, common cooling air as the central cooler high-temperature region.Because the outdoor relatively cooling air blast pipe of the cooling air temperature cooling air temperature of central cooler high-temperature region increases after superposeing, but can influence the sintering process performance, after superposeing after the scorching hot material sufficient heat exchange in the cooling air of central cooler high-temperature region and high-temperature region, the flue-gas temperature that second flue gas cover is collected can be increased to more than 450 ℃ (on average) by 360 ℃ (on average), effectively improves the efficient that flue gas utilizes again.
Because second flue gas cover is collected flue-gas temperature and is increased to more than 450 ℃ (on average) by 360 ℃ (on average), the main steam temperature of two pressure waste heat boilers is also corresponding can be increased to 390 ℃ by 330 ℃, make the generating heat consumption rate of steam compensating turbine reduce the corresponding increase of generated energy.
Description of drawings
Fig. 1 is existing first kind of sintering circuit central cooler power generation system using waste heat structure chart;
Fig. 2 is existing second kind of sintering circuit central cooler power generation system using waste heat structure chart;
Fig. 3 is the power generation system using waste heat of sintering circular cooler first example structure figure of the present invention;
Fig. 4 is the power generation system using waste heat of sintering circular cooler second example structure figure of the present invention.
The specific embodiment
The invention provides a kind of power generation system using waste heat of sintering circular cooler, be used under the prerequisite that does not influence the sintering process performance, improve the inlet temperature of waste heat boiler waste gas.
Referring to Fig. 3, this figure is the power generation system using waste heat of sintering circular cooler first example structure figure of the present invention.
Generally speaking, central cooler import 1 give the ore deposit temperature-averaging between 700～800 ℃, the ore deposit temperature requirement of central cooler outlet 2 is below 150 ℃.In the sintering deposit cooling procedure, the entrained heat of sintering deposit is converted into the waste gas sensible heat, and EGT progressively reduces from front to back, gives position, ore deposit EGT the highest.During the air blast cooling, according to test, generally about 450 ℃, ore discharge position EGT is minimum, generally below 150 ℃.The temperature of high-temperature part waste gas is between 300～450 ℃, and according to measurement result, this part waste gas accounts for 30%～40% of whole exhausted air quantity; The exhausted air quantity that is lower than 300 ℃ accounts for more than 60% of all waste gases amount.
The heat-obtaining of the described power generation system using waste heat of sintering circular cooler of the embodiment of the invention, generally the air quantity according to the separate unit air blast comes segmentation, and first air blast 3 is first section, and second air blast 4 is second section.The described power generation system using waste heat of sintering circular cooler of the embodiment of the invention is generally got first section, be high temperature section (EGT 360-400 ℃) waste-gas heat, because second section EGT is not high, i.e. low-temperature zone (generally being lower than 250 ℃), generally do not utilize, but enter atmosphere from former chimney.
The described power generation system using waste heat of sintering circular cooler of first embodiment of the invention comprises:
First flue gas cover 102 is arranged on and is used to collect the low-temperature space flue gas on the central cooler low-temperature space.
Second flue gas cover 101 is arranged on and is used to collect the high-temperature region flue gas on the central cooler high-temperature region.
Airduct 7 is used to be communicated with described first flue gas cover 102 and central cooler high-temperature region cooling air channel.
First air blast 3, with the flue gas that the central cooler low-temperature space in the described airduct 7 is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe 6 superposes, common cooling air as the central cooler high-temperature region.
First flue gas pipeline 9 is used to be communicated with the blast pipe of described second flue gas cover 101 and two pressure waste heat boilers 11.
On first flue gas pipeline 9, can be provided with deduster, thereby guarantee to enter the exhaust mass of two pressure waste heat boilers 11.
On described airduct 7, can be provided for regulating the air-valve 164 of air quantity.On described first flue gas pipeline 9, can be provided for regulating the air-valve 162 of air quantity.Can be provided for regulating the air-valve 165 of air quantity on the described outdoor cooling air blast pipe 6.
On first chimney 81 that connects first flue gas cover 102, also can be provided for regulating the air-valve 161 of air quantity.On second chimney 82 that connects second flue gas cover 101, also can be provided for regulating the air-valve 163 of air quantity.
Described pair of pressure waste heat boiler 11 is used for the flue gas of first flue gas pipeline 9 is converted into high steam and low-pressure steam, and described high steam enters the high pressure section acting of steam compensating turbine 13, and described low-pressure steam enters the low pressure stage acting of steam compensating turbine 13.
Described steam compensating turbine 13 is used to drive generating set 14 and generates electricity.
The airduct 7 of the described power generation system using waste heat of sintering circular cooler of the embodiment of the invention is communicated with described first flue gas cover 102 and central cooler high-temperature region cooling air channel, by the flue gas of first air blast 3 with the discharge of the central cooler low-temperature space in the airduct 7, with the outdoor cooling air stack that outdoor cooling air blast pipe enters, common cooling air as the central cooler high-temperature region.Because the outdoor relatively cooling air blast pipe of the cooling air temperature cooling air temperature of central cooler high-temperature region increases after superposeing, but can influence the sintering process performance, after superposeing after the scorching hot material sufficient heat exchange in the cooling air of central cooler high-temperature region and high-temperature region, the flue-gas temperature that second flue gas cover 101 is collected can be increased to more than 450 ℃ (on average) by 360 ℃ (on average), effectively improves the efficient that flue gas utilizes again.
Because second flue gas cover 101 is collected flue-gas temperature and is increased to more than 450 ℃ (on average) by 360 ℃ (on average), the main steam temperature of two pressure waste heat boilers 11 is also corresponding can be increased to 390 ℃ by 330 ℃, make the generating heat consumption rate of steam compensating turbine 13 reduce the corresponding increase of generated energy.
Studies show that: when the initial temperature of cooling medium (air) is 120 ℃, by with the heat exchange of sintering circular-cooler mineral aggregate after, the EGT that second flue gas cover 101 is collected will improve 45 ℃ when directly adopting outdoor air to cool off.When adopting the cooling medium (＜250 ℃) of higher temperature, be the temperature of central cooler high temperature section waste gas can be increased to more than 450 ℃, for the temperature that prevents high temperature section waste gas too high, on the blast pipe of first air blast 3, be provided with the air-valve 165 that is used for replenishing outdoor cold air, control the temperature of high temperature section waste gas by air-valve 165.
The benefit of doing like this is:
The first, by improving the temperature of exhaust-heat boiler inlet waste gas, can significantly improve the heat recovery amount of waste heat boiler; Improved the waste heat boiler main steam temperature simultaneously, according to the second law of thermodynamics, heat source temperature is high more, and the thermal efficiency is high more, and generated energy will increase.
The second, compare with background technology system 2, because the mode of heat recovery (or stack) is different, the reduction of exhaust piping resistance reduces the power consumption of blower fan, can reduce the power station from power consumption rate.
The 3rd, hot blast cooling sintering deposit can reduce the broken phenomenon of chilling of high temperature mineral aggregate, improves sinter quality.
Referring to Fig. 4, this figure is the power generation system using waste heat of sintering circular cooler second example structure figure of the present invention.
When high-temp waste gas type large scale sintering central cooler＞235m2, the cooling zone can be divided into high temperature section, middle-temperature section and low-temperature zone.
Power generation system using waste heat of sintering circular cooler second embodiment of the present invention, the difference of relative first embodiment is, second air blast is used for the flue gas with the central cooler low-temperature space discharge of described airduct, with the outdoor cooling air stack that outdoor cooling air blast pipe enters, common cooling air as warm area in the central cooler.
When high-temp waste gas type large scale sintering central cooler＞235m2, the cooling zone can be divided into high temperature section, middle-temperature section and low-temperature zone.
The described power generation system using waste heat of sintering circular cooler of second embodiment of the invention comprises:
First flue gas cover 102 is arranged on and is used to collect the low-temperature space flue gas on the central cooler low-temperature space.
Second flue gas cover 101 is arranged on and is used to collect the high-temperature region flue gas on the central cooler high-temperature region.
The 3rd flue gas cover 103 is arranged on and is used for collecting the warm area flue gas in the central cooler on the warm area.
Airduct 7 is used to be communicated with described first flue gas cover 102 and central cooler high-temperature region cooling air channel.
Airduct 7 also can be used to be communicated with described the 3rd flue gas cover 103 and central cooler high-temperature region cooling air channel.
First flue gas pipeline 9 is used to be communicated with described second flue gas cover 101 and two pressure waste heat boiler 11 blast pipes.
Second flue gas pipeline 10 is used to be communicated with the blast pipe of described the 3rd flue gas cover 103 and two pressure waste heat boilers 11.
First air blast 3, with the flue gas that the central cooler low-temperature space in the described airduct 7 is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe 6 superposes, common cooling air as the central cooler high-temperature region.
Second air blast 4, with the flue gas that the central cooler low-temperature space in the described airduct 7 is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe 6 superposes, common cooling air as warm area in the central cooler.
Described pair of pressure waste heat boiler 11, be used for the flue gas of first flue gas pipeline 9 and second flue gas pipeline 10 is converted into high steam and low-pressure steam, described high steam enters the high pressure section acting of steam compensating turbine 13, and described low-pressure steam enters the low pressure stage acting of steam compensating turbine 13.
Described steam compensating turbine 13 is used to drive generating set 14 and generates electricity.
Described first flue gas pipeline 9 can be provided with deduster, thereby guarantees to enter the exhaust mass of two pressure waste heat boilers 11.
Described first flue gas pipeline 9 links to each other with the superheater 111 of described pair of pressure waste heat boiler 11.Described second flue gas pipeline 10 links to each other with the sub-high pressure evaporimeter 112 of described pair of pressure waste heat boiler 11.
On described airduct 7, first flue gas pipeline 9, outdoor cooling air blast pipe 6, air-valve can be set.
The described power generation system using waste heat of sintering circular cooler of second embodiment of the invention, air intake to central cooler first air blast 3 is changed into the low temperature waste gas (250 ℃) that adopts central cooler low-temperature zone (for the 2nd section of medium-sized central cooler) or low-temperature zone (for the 3rd section of large-scale central cooler) by outdoor cold air (20 ℃), heat stack with the heat and the high temperature section waste gas of the low temperature waste gas of low-temperature zone, thereby the temperature of high temperature section waste gas is increased to more than 450 ℃ by 360 ℃, the main steam temperature of two pressure waste heat boilers 11 is corresponding can be increased to 390 ℃ by 330 ℃, the generating heat consumption rate of compensation steam turbine 13 will reduce the corresponding increase of generated energy.
System of the present invention in use, at first open air-valve 161,163,165,166,168, close air-valve 162,164,167, sintering deposit at first enters central cooler, open first air blast 3, second air blast 4, the 3rd air blast 5 and carry out the cooling of mineral aggregate, discharge cooling down high-temperature waste gas; Open air-valve 162,164,167 then, close air-valve 161,163,166, turn down air-valve 165,168, open boiler induced-draft fan 12, high-temp waste gas is introduced two pressure waste heat boilers 11 by first flue gas pipeline 9 or second flue gas pipeline 10, produce high steam and low-pressure steam, high steam enters the acting of steam compensating turbine 13 high pressure sections, low-pressure steam enters the acting of steam compensating turbine 13 low pressure stages, and steam compensating turbine 13 drives generating set 14 and generates electricity.Regulate the aperture of air-valve 165,168, can control the discharge temperature of central cooler waste gas, make discharge temperature be controlled at 450 ℃.
For the ease of those skilled in the art's understanding, below with existing 180m
2The sintering machine afterheat generating system is an example, and the present invention is described further.
With existing 180m
2The sintering machine afterheat generating system is an example:
Sintering machine: sintering area 180m
2
Central cooler: film-cooled heat 228m
2
The central cooler air blast: 4, air quantity 25x104Nm3/h, blast 3844-3697Pa, 20 ℃ of wind-warm syndrome.
Power of motor 400kW.
Get high temperature section (the 1st section) waste gas (influence that consideration is leaked out): thermal source waste gas is measured 20x104Nm3/h.
Two pressure waste heat boilers+flue gas resistance: 2000Pa
Referring to table 1:180m
2In sintering machine afterheat generating system and the background technology the various different technologies of existing two kinds of systems the generated energy comparison sheet that can produce.
Table 1
| Systematic name | Exhaust gas entrance flow, temperature | Main steam pressure, temperature, flow | Filling pressure, temperature, flow | The waste heat boiler delivery temperature | Generated energy | From power consumption rate | Delivery |
| Existing first kind of system | ??200000Nm3/h ??360℃ | ??1.4MPa； ??330℃； ??15.5t/h | ??0.25MPa； ??180℃； ??5.3t/h | ??125℃ | ??3762kW | ??11％ | ??3348.18kW |
| Existing second kind of system | ??200000Nm3/h ??400℃ | ??1.6MPa； ??360℃； ??19t/h | ??0.3MPa； ??185℃； ??5.0t/h | ??125℃ | ??4425kW | ??16％ | ??3717kW |
| 180m of the present invention 2The sintering machine afterheat generating system | ??200000Nm3/h ??450℃ | ??1.8MPa； ??390℃； ??24t/h | ??0.35MPa； ??190℃； ??4.2t/h | ??120℃ | ??5325kW | ??14％ | ??4579.5kW |
When central cooler does not utilize the waste gas generating: the first blower shaft power P f=337kW.
Adopt when having first kind of system process now, two pressure waste heat boilers+stack gases drag overall is 2000Pa, boiler induced-draft fan shaft power Pf=241kW (electric weight that consumes during generating).
Adopt when having second kind of system process now, two pressure waste heat boilers and flue gas and bed of material drag overall are 6700Pa, boiler circulating fan shaft power Pf=808kW; First air blast is not worked; The electric weight that consumes during generating: 808-337=471kW.
When adopting the described system of the embodiment of the invention, two pressure waste heat boilers and the total flue gas resistance of stack gases are 2000Pa, boiler induced-draft fan shaft power Pf=241kW; First air blast is owing to adopt 200 ℃-250 ℃ hot blast, and shaft power will increase to Pf=523kW, does not increase when not utilizing the waste gas generating than central cooler: 523-337=186kW; The electric weight that consumes during generating: 241+186=427kW.
From as can be seen last, when adopting the described system of the embodiment of the invention, generated energy and delivery be maximum.The cogeneration station from power consumption rate between existing two technologies.
The above only is the preferred implementation of power generation system using waste heat of sintering circular cooler of the present invention, does not constitute the qualification to protection domain of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (11)
1, a kind of power generation system using waste heat of sintering circular cooler is characterized in that, described system comprises:
First flue gas cover is arranged on and is used to collect the low-temperature space flue gas on the central cooler low-temperature space;
Second flue gas cover is arranged on and is used to collect the high-temperature region flue gas on the central cooler high-temperature region;
Airduct is used to be communicated with described first flue gas cover and central cooler high-temperature region cooling air channel;
First air blast, with the flue gas that the central cooler low-temperature space in the described airduct is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe superposes, common cooling air as the central cooler high-temperature region;
First flue gas pipeline is used to be communicated with described second flue gas cover and two pressure waste heat boiler blast pipe;
Described pair of pressure waste heat boiler is used for the flue gas of first flue gas pipeline is converted into high steam and low-pressure steam, and described high steam enters the high pressure section acting of steam compensating turbine, and described low-pressure steam enters the low pressure stage acting of steam compensating turbine;
Described steam compensating turbine is used to drive generating set and generates electricity.
2, power generation system using waste heat of sintering circular cooler according to claim 1 is characterized in that, on described first flue gas pipeline deduster is set.
3, power generation system using waste heat of sintering circular cooler according to claim 1 is characterized in that, on described airduct air-valve is set.
4, power generation system using waste heat of sintering circular cooler according to claim 1 is characterized in that, on described first flue gas pipeline air-valve is set.
5, power generation system using waste heat of sintering circular cooler according to claim 1 is characterized in that, on the described outdoor cooling air blast pipe air-valve is set.
6, a kind of power generation system using waste heat of sintering circular cooler is characterized in that, described system comprises:
First flue gas cover is arranged on and is used to collect the low-temperature space flue gas on the central cooler low-temperature space;
Second flue gas cover is arranged on and is used to collect the high-temperature region flue gas on the central cooler high-temperature region;
The 3rd flue gas cover is arranged on and is used for collecting the warm area flue gas in the central cooler on the warm area;
Airduct is used to be communicated with described first flue gas cover and central cooler high-temperature region cooling air channel, or, be communicated with described the 3rd flue gas cover and central cooler high-temperature region cooling air channel;
First flue gas pipeline is used to be communicated with described second flue gas cover and two pressure waste heat boiler blast pipe;
Second flue gas pipeline is used to be communicated with described the 3rd flue gas cover and two pressure waste heat boiler blast pipe;
First air blast, with the flue gas that the central cooler low-temperature space in the described airduct is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe superposes, common cooling air as the central cooler high-temperature region;
Second air blast, with the flue gas that the central cooler low-temperature space in the described airduct is discharged, the outdoor cooling air that enters with outdoor cooling air blast pipe superposes, common cooling air as warm area in the central cooler;
Described pair of pressure waste heat boiler, be used for the flue gas of first flue gas pipeline and second flue gas pipeline is converted into high steam and low-pressure steam, described high steam enters the high pressure section acting of steam compensating turbine, and described low-pressure steam enters the low pressure stage acting of steam compensating turbine;
Described steam compensating turbine is used to drive generating set and generates electricity.
7, power generation system using waste heat of sintering circular cooler according to claim 6 is characterized in that, on described first flue gas pipeline deduster is set.
8, power generation system using waste heat of sintering circular cooler according to claim 6 is characterized in that,
Described first flue gas pipeline links to each other with the superheater of described pair of pressure waste heat boiler;
Described second flue gas pipeline links to each other with the sub-high pressure evaporimeter of described pair of pressure waste heat boiler.
9, according to claim 6 or 8 described power generation system using waste heat of sintering circular cooler, it is characterized in that, on described airduct, air-valve is set.
10, power generation system using waste heat of sintering circular cooler according to claim 6 is characterized in that, on described first flue gas pipeline air-valve is set.
11, power generation system using waste heat of sintering circular cooler according to claim 6 is characterized in that, on the described outdoor cooling air blast pipe air-valve is set.
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825399A (en) * | 2010-04-21 | 2010-09-08 | 中冶长天国际工程有限责任公司 | Method and device for utilizing exhaust heat of waste gas in sinter cooler |
| CN101865608A (en) * | 2010-03-19 | 2010-10-20 | 湖南永清环保股份有限公司 | Sintering waste heat utilizing system with wide application range of load and control method thereof |
| CN101968317A (en) * | 2010-11-25 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat generating system |
| CN102003887A (en) * | 2010-11-26 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat utilization system |
| CN102012166A (en) * | 2010-07-15 | 2011-04-13 | 秦皇岛首秦金属材料有限公司 | Sinter cooling method |
| CN102121792A (en) * | 2010-12-20 | 2011-07-13 | 昆明理工大学 | New device for recycling tail flue gas of mobile sintering machine and reducing emission of sulfur dioxide |
| CN102174903A (en) * | 2011-01-18 | 2011-09-07 | 东南大学 | Bootstrap system using steam turbine to directly drive sintering cooling fan |
| CN102494539A (en) * | 2011-12-30 | 2012-06-13 | 中冶长天国际工程有限责任公司 | Cooler cascade air supply method for residual-heat utilization |
| CN103234364A (en) * | 2013-04-15 | 2013-08-07 | 中信重工机械股份有限公司 | Device with griddle and process for generating power by efficiently recycling sinter waste heat |
| CN104197365A (en) * | 2014-09-11 | 2014-12-10 | 中南大学 | Preheating combustion air device for recovering waste heat of high-temperature slag in stepped mode |
| CN104833217A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Waste heat and complementary energy comprehensive utilization power generation device and power generation method |
| CN104833218A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Sintering waste heat power generation device with external overheating afterburner and waste heat utilization method |
| CN106285810A (en) * | 2016-09-26 | 2017-01-04 | 邯钢集团邯宝钢铁有限公司 | A kind of wet saturated steam is for the apparatus and method of sintering waste heat generating |
| CN106679441A (en) * | 2017-03-01 | 2017-05-17 | 北京金都泰拓冶金技术研究有限公司 | Ring cooling machine waste heat utilization system and process |
| CN106931792A (en) * | 2015-12-30 | 2017-07-07 | 中冶长天国际工程有限责任公司 | The method and apparatus of central cooler waste gas comprehensive utilization |
| CN107702547A (en) * | 2017-11-01 | 2018-02-16 | 中冶焦耐(大连)工程技术有限公司 | A kind of sintering deposit waste heat consecutive recovery system of common boiler and generating set |
| CN108444301A (en) * | 2018-03-19 | 2018-08-24 | 四川德胜集团钒钛有限公司 | Sintering mine sensible heat recycles electricity generation system and method |
| CN112179151A (en) * | 2020-10-29 | 2021-01-05 | 秦皇岛北方管业有限公司 | Method and device for cooling sintered material of circular cooler |
| CN112880415A (en) * | 2021-01-25 | 2021-06-01 | 广东韶钢松山股份有限公司 | Method for recycling hot air of circular cooler |
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2009
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101865608A (en) * | 2010-03-19 | 2010-10-20 | 湖南永清环保股份有限公司 | Sintering waste heat utilizing system with wide application range of load and control method thereof |
| CN101865608B (en) * | 2010-03-19 | 2012-05-30 | 湖南永清环保股份有限公司 | Sintering waste heat utilizing system with wide application range of load and control method thereof |
| CN101825399A (en) * | 2010-04-21 | 2010-09-08 | 中冶长天国际工程有限责任公司 | Method and device for utilizing exhaust heat of waste gas in sinter cooler |
| CN101825399B (en) * | 2010-04-21 | 2013-10-30 | 中冶长天国际工程有限责任公司 | Method and device for utilizing exhaust heat of waste gas in sinter cooler |
| CN102012166A (en) * | 2010-07-15 | 2011-04-13 | 秦皇岛首秦金属材料有限公司 | Sinter cooling method |
| CN101968317A (en) * | 2010-11-25 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat generating system |
| CN102003887A (en) * | 2010-11-26 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat utilization system |
| CN102121792A (en) * | 2010-12-20 | 2011-07-13 | 昆明理工大学 | New device for recycling tail flue gas of mobile sintering machine and reducing emission of sulfur dioxide |
| CN102121792B (en) * | 2010-12-20 | 2013-07-31 | 昆明理工大学 | New device for recycling tail flue gas of mobile sintering machine and reducing emission of sulfur dioxide |
| CN102174903A (en) * | 2011-01-18 | 2011-09-07 | 东南大学 | Bootstrap system using steam turbine to directly drive sintering cooling fan |
| CN102494539A (en) * | 2011-12-30 | 2012-06-13 | 中冶长天国际工程有限责任公司 | Cooler cascade air supply method for residual-heat utilization |
| CN103234364A (en) * | 2013-04-15 | 2013-08-07 | 中信重工机械股份有限公司 | Device with griddle and process for generating power by efficiently recycling sinter waste heat |
| CN104197365A (en) * | 2014-09-11 | 2014-12-10 | 中南大学 | Preheating combustion air device for recovering waste heat of high-temperature slag in stepped mode |
| CN104197365B (en) * | 2014-09-11 | 2016-08-03 | 中南大学 | High temperature sludge exhaust heat stepped recovery warm-up combustion-supporting air device |
| CN104833217A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Waste heat and complementary energy comprehensive utilization power generation device and power generation method |
| CN104833218A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Sintering waste heat power generation device with external overheating afterburner and waste heat utilization method |
| CN106931792A (en) * | 2015-12-30 | 2017-07-07 | 中冶长天国际工程有限责任公司 | The method and apparatus of central cooler waste gas comprehensive utilization |
| CN106931792B (en) * | 2015-12-30 | 2019-10-01 | 中冶长天国际工程有限责任公司 | The method and apparatus of ring cold machine exhaust gas comprehensive utilization |
| CN106285810A (en) * | 2016-09-26 | 2017-01-04 | 邯钢集团邯宝钢铁有限公司 | A kind of wet saturated steam is for the apparatus and method of sintering waste heat generating |
| CN106679441A (en) * | 2017-03-01 | 2017-05-17 | 北京金都泰拓冶金技术研究有限公司 | Ring cooling machine waste heat utilization system and process |
| CN107702547A (en) * | 2017-11-01 | 2018-02-16 | 中冶焦耐(大连)工程技术有限公司 | A kind of sintering deposit waste heat consecutive recovery system of common boiler and generating set |
| CN108444301A (en) * | 2018-03-19 | 2018-08-24 | 四川德胜集团钒钛有限公司 | Sintering mine sensible heat recycles electricity generation system and method |
| CN112179151A (en) * | 2020-10-29 | 2021-01-05 | 秦皇岛北方管业有限公司 | Method and device for cooling sintered material of circular cooler |
| CN112880415A (en) * | 2021-01-25 | 2021-06-01 | 广东韶钢松山股份有限公司 | Method for recycling hot air of circular cooler |
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