CN102559991B - State transition device capable of achieving uninterrupted heat energy output and utilization for steelmaking converter - Google Patents
State transition device capable of achieving uninterrupted heat energy output and utilization for steelmaking converter Download PDFInfo
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- CN102559991B CN102559991B CN 201210051501 CN201210051501A CN102559991B CN 102559991 B CN102559991 B CN 102559991B CN 201210051501 CN201210051501 CN 201210051501 CN 201210051501 A CN201210051501 A CN 201210051501A CN 102559991 B CN102559991 B CN 102559991B
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Abstract
The invention discloses a state transition device capable of achieving uninterrupted heat energy output and utilization for a steelmaking converter. The state transition device comprises a flue duct state transition device and a sweeping combustion device, wherein the flue duct state transition device is arranged above a fixed gas hood for a flue duct of the converter; in addition, the sweeping combustion device is arranged outside the flue duct above the flue duct state transition device, and is communicated with the inner part of the flue duct in a working manner. The state transition device achieves the organic conversion between the converting period state and the sweeping period state of the converter, overcomes the shortage that the steelmaking converter can only produce low-pressure saturated steam intermittently, greatly improves the quality of steam, can produce three types of superheated steam continuously, and satisfies the continuous operation requirement of a steam turbine. The state transition device not only utilizes energy fully but also sweeps a system completely; in addition, the thermal stress of a coal gas system can be reduced effectively, the normal operationcan be ensured, and the service life can be prolonged. The air excess coefficient in flue gas can be controlled in the prior period and the later period of the converting, the generation of nitrogen oxides can be reduced greatly, and environment pollution can be reduced. The structure is simple, the operation is stable and reliable, and the thermal energy recovery and utilization efficiency is high.
Description
Technical field
The invention belongs to the steelmaking equipment technical field, be specifically related to a kind of simple in structurely, the stable and reliable operation steel-making converter is realized the state converter that the output of uninterrupted heat energy utilizes, and can realize the state conversion of blowing period and the phase of purging effectively.
Background technology
Coal gas of converter is the important secondary energy of iron and steel enterprise, and the effective recycling coal gas of converter can not only reduce the STEELMAKING PRODUCTION cost, lays the first stone for realizing " negative energy " steel-making, and can greatly reduce the total emission volumn of steel mill's pollutent, realizes cleaner production.LT converter coal gas purification dry method treatment technology comes from Germany, and this method is utilized the electric field dedusting, and efficiency of dust collection can directly purify the dustiness in the flue gas to 10mg/m up to 99%
3Below, can directly use for the user, the LT method is representing the RECOVERY OF CONVERTER GAS technological development direction.The high-temperature flue gas heat energy that reclaims the converter steelmaking generation produces steam also as the work energy of turbo-generator, perhaps is used for civilian or other purposes.But, the operating mode of converter steelmaking is intermittently, discontinuous work, and the steam that reclaims the heat energy generation naturally also is step, and steam turbine power generation, and even electricity consumption then requires intermittently not provide, continuous operation mode, and both do not match, will cause energy utilization insufficient, the problem that productive efficiency descends, and problem such as the energy recovery of discontinuous operation pattern is also insufficient, and pollutant emission is not up to standard.Therefore develop and a kind ofly can solve the unmatched problem of both operating mode, realize the converter conversion of operation state, the purpose state converter that reaches uninterrupted heat energy utilization is very important, and helps to improve working efficiency and the application potential of LT method.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, the stable and reliable operation steel-making converter is realized the state converter that the output of uninterrupted heat energy utilizes, and can realize the state conversion of blowing period and the phase of purging effectively.
The object of the present invention is achieved like this, comprises the flue state converter and purge combustion unit, and described flue state converter is arranged at the fixed cover top of converter flue; Described flue state converter top flue outer setting purges combustion unit, and is communicated with the flue internal work.
The present invention has realized the state conversion of blowing period and the phase of purging by the coordinated of flue state converter with the purging combustion unit, guarantees that there is high-temperature flue gas in the non-blowing process for the production of steam, steam supply turbine generating use.The steel-making converter that has overcome service intermittent can only produce the deficiency of low-pressure saturated steam, the continuous superheated vapour that can produce High Temperature High Pressure, medium temperature and medium pressure and three kinds of parameters of low-temp low-pressure has increased substantially the quality of steam, can with the organic collaborative work of the steam turbine of non-stop run.Both taken full advantage of the energy, and again system's flue had been carried out purging up hill and dale successively, guaranteed that system works was normal.In the converter coal gas purification system, the thermal stresses that this device can reduce the converter coal gas purification system is set, prolong the life-span of gas cleaning system.The present invention can significantly reduce the generation of oxynitrides at the coefficient of excess air of the forward and backward phase control of blowing flue gas, reduces the pollution of environment.The present invention is simple in structure, and working stability is reliable, and state is changed promptly and accurately, purges and heat energy recycle efficient height.
Description of drawings
Fig. 1 is one-piece construction of the present invention and working state schematic representation;
Fig. 2 is that the AA of Fig. 1 is to view;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is that the BB of Fig. 1 is to view;
Among the figure: 1-flue state converter, 2-topworks, 3-purges combustion unit, the 4-gas conduit, the combustion-supporting blast tube of 5-, 6-is petticoat pipe fixedly, the 7-movable gas hood, the 8-converter, the 9-flue, the 11-water sealed tank, 21-carries out push-pull rod, the 22-valve plate, 23-baffle plate, 24-roller, 25-guide rail, 26-heat insulating mattress.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing, but never in any form the present invention is limited, and any change or improvement based on training centre of the present invention is done all belong to protection scope of the present invention.
As shown in Figure 1, the present invention includes flue state converter 1, topworks 2 and purge combustion unit 3, described flue state converter 1 is arranged at fixedly petticoat pipe 6 tops of converter flue 9, described flue state converter 1 top flue 9 outer setting purge combustion unit, and are communicated with flue 9 internal works.
As Fig. 2, shown in Figure 3, described flue state converter 1 is case structure, wherein arrange and split the embedded groove type sealed valve, outside the described flue state converter 1 topworks 2 is set, the push-pull rod 21 of topworks 2 connects valve plate 22, and valve plate 22 two ends arrange roller 24 and cooperate realization valve plate slide opening and closing with guide rail 25.In the described both sides valve plate 22 butt joint caulking grooves gasket is set.
Described flue state converter 1 bottom is water sealed tank 11.
Described valve plate 22 sides arrange baffle plate 23, and the lower end is stretched in the water sealed tank 11.
Between described water sealed tank 11 and the flue state converter 1 heat insulating mattress 26 is set, described heat insulating mattress 26 is gas cloud or thermal insulating filling layer, all can realize purpose of the present invention.
Sealing movingly between described push-pull rod 21 and the flue state converter 1; Described topworks 2 is electronic, pneumatic, electromagnetism or fluid pressure type topworks, or chain transmission type topworks, all can realize purpose of the present invention.
As shown in Figure 4, described purging combustion unit 3 is symmetricly set in the gas approach end of flue gas gasification cooling flue, and its blast tube is communicated with the flue internal work along circle tangential direction in the flue.
Described purging combustion unit 3 is the slit type gas burner, and gas conduit 4 and combustion-supporting blast tube 5 are set on the described purging combustion unit 3; Described gas conduit 4 links to each other with the gas supply pipe road.The alternate passage by separately of coal gas and combustion air enters the flue gas gasification cooling flue, and the accumulation of heat high temperature of the flue state converter 1 that arranges by its below is as the burning things which may cause a fire disaster of a coal gas, mixed firing.
Described gas conduit 4 arranges variable valve and the non-return quick-closing valve of gas flow.
On the described combustion-supporting blast tube 5 volume damper and trip valve are set.
Described gas conduit 4 and combustion-supporting blast tube 5 are respectively equipped with nitrogen interface.
Described gas conduit 4 arranges variable valve and the non-return quick-closing valve of gas flow.
On the described combustion-supporting blast tube 5 volume damper and trip valve are set.
Be respectively equipped with nitrogen interface on described gas conduit 4 and the combustion-supporting blast tube 5.
The quantity of described purging combustion unit 2 is 4 ~ 8, and the power of each burner is equal to or less than 5000kw.According to the power of system determine the number of burner, gas burner be distributed in gasification cooling flue gas approach end around.Burner is cast with heat resisting iron and is formed.
Principle of work of the present invention and working process:
Apparatus of the present invention and process for making interlocking, in the process that movable gas hood is fallen, this device is progressively opened and is made converter and converter gas recycle device UNICOM carry out converter gas purification and heat energy recycle.Steel-making end oxygen is robbed and is mentioned, and movable gas hood rises to interlock simultaneously progressively closes converter gas recycle device access road, and cut-out converter gas use device contacts with the external world, so that converter gas purification and heat energy recycle device are converted into gas fired-boiler.The present invention is risen and is closed along with movable gas hood, cuts off converter gas recycle device and extraneous contacting, and extraneous freezing air can't enter the converter gas purification retrieving arrangement.Because the condition of high temperature in the heat accumulation effect holdout device of flap, the freezing air that gas burner is sent into and coal gas run into high temp objects and burn to guarantee switching point pyrogene merit each time immediately.Steel-making beginning oxygen rifle whereabouts movable gas hood descends simultaneously, and flap of the present invention is opened thereupon, makes converter and converter gas recycle device UNICOM to finish this device by the boiler operatiopn state, recycles the conversion of running status to converter gas.
The high-temperature flue gas heat energy that reclaims the converter steelmaking generation produces steam also as the work energy of turbo-generator, perhaps is used for civilian or other purposes.But, the operating mode of converter steelmaking is intermittently, discontinuous work, and the steam that reclaims the heat energy generation naturally also is step, and steam turbine power generation, and even electricity consumption then requires intermittently not provide, continuous operation mode, and both do not match, will cause energy utilization insufficient, the problem that productive efficiency descends, and problem such as the energy recovery of discontinuous operation pattern is also insufficient, and pollutant emission is not up to standard.The present invention can solve the converter conversion of operation state, has realized uninterrupted heat energy utilization problem.Converter enters the blowing process, control topworks opens the flue state converter, and fixedly the flue of petticoat pipe top is in unimpeded state, the high-temperature flue gas that steel-making produces enters energy recovery and gas recovery system through flue, and thermal power transfer is that steam is used for steam turbine power generation; Qualified coal gas is sent into the standby or direct supply of gas holder storage and is used to the user.Work as finishing blowing, be i.e. during converter blowing out, do not have high-temperature flue gas to produce, vapor generation stops, and steam turbine does not have steam yet and can not generate electricity.Utilize flue state converter of the present invention to isolate the converter burner hearth, simultaneously, act as a fuel to purging combustion unit supply coal gas, the while blowing-in and combustion-supporting, the high-temperature flue gas that gas-fired produces carries out height to system and states purging, the cleaning work flue for the preparation of working well of next blowing process, is enhanced productivity.High-temperature flue gas heat energy is recovered utilization equally, continues to produce the steam of steam supply turbine generating, has guaranteed the non-stop run of steam turbine.After the waste gas heat exchange cooling dedusting that gas-fired produces by smoke stack emission.When treating that the next blowing process arrives, stop to supply with coal gas to purging combustion unit, out-of-blast.The flue state converter is opened, and it is unobstructed that flue recovers, and converter enters the blowing process, so circulation, and the system that guaranteed produces the stable steam that is used for generating continuously.
Claims (7)
1. a steel-making converter is realized the state converter that uninterrupted heat energy output utilizes, comprise flue state converter (1) and purge combustion unit (3), it is characterized in that: described flue state converter (1) is arranged at fixedly petticoat pipe (6) top of converter flue (9), described flue state converter (1) top flue (9) outer setting purges combustion unit (3), and is communicated with flue (9) internal work; Described flue state converter (1) is case structure, wherein arrange and split the embedded groove type sealed valve, the outer topworks (2) that arranges of described flue state converter (1), the push-pull rod (21) of topworks (2) connects valve plate (22), and valve plate (22) two ends arrange roller (24) and cooperate realization valve plate slide-open with guide rail (25) and close; Described purging combustion unit (3) is symmetricly set in the gas approach end of flue gas gasification cooling flue, and its blast tube is communicated with the flue internal work along circle tangential direction in the flue; Described purging combustion unit (3) is the slit type gas burner; Gas conduit (4) and combustion-supporting blast tube (5) are set on the described purging combustion unit (3).
2. steel-making converter as claimed in claim 1 is realized the state converter that uninterrupted heat energy output utilizes, and it is characterized in that: described flue state converter (1) bottom is water sealed tank (11).
3. steel-making converter as claimed in claim 1 is realized the state converter that uninterrupted heat energy output utilizes, and it is characterized in that: described valve plate (22) side arranges baffle plate (23), and the lower end is stretched in the water sealed tank (11).
4. realize the state converter that uninterrupted heat energy output utilizes as claim 1 or 3 described steel-making converters, it is characterized in that: sealing movingly between described push-pull rod (21) and the flue state converter (1).
5. steel-making converter as claimed in claim 1 is realized the state converter that uninterrupted heat energy output utilizes, and it is characterized in that: described gas conduit (4) arranges variable valve and the non-return quick-closing valve of gas flow.
6. steel-making converter as claimed in claim 1 is realized the state converter that uninterrupted heat energy output utilizes, and it is characterized in that: on the described combustion-supporting blast tube (5) volume damper and trip valve are set.
7. steel-making converter as claimed in claim 1 is realized the state converter that uninterrupted heat energy output utilizes, and it is characterized in that: be respectively equipped with nitrogen interface on described gas conduit (4) and the combustion-supporting blast tube (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210051501 CN102559991B (en) | 2012-03-01 | 2012-03-01 | State transition device capable of achieving uninterrupted heat energy output and utilization for steelmaking converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210051501 CN102559991B (en) | 2012-03-01 | 2012-03-01 | State transition device capable of achieving uninterrupted heat energy output and utilization for steelmaking converter |
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| CN102559991A CN102559991A (en) | 2012-07-11 |
| CN102559991B true CN102559991B (en) | 2013-10-09 |
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| CN113154381B (en) * | 2021-04-09 | 2022-04-22 | 山东一然环保科技有限公司 | Low heat accumulation formula low nitrogen direct flame nozzle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962884A (en) * | 2006-12-07 | 2007-05-16 | 昆明阳光数字技术股份有限公司 | Dry-method dust collection and surplus energy recovery device for steel-smelting converter flue gas |
| CN101117652A (en) * | 2007-08-02 | 2008-02-06 | 昆明阳光基业股份有限公司 | Gas modifying combustion-compensating device for converter evaporation cooling air flue |
| CN102051436A (en) * | 2010-10-29 | 2011-05-11 | 首钢总公司 | System and method for generating electricity by using secondary recycling of steel-making converter gas |
| CN102321779A (en) * | 2011-10-14 | 2012-01-18 | 孙慕文 | Converter smoke radiation type waste heat boiler recovery system |
| CN202482344U (en) * | 2012-03-01 | 2012-10-10 | 九源天能（北京）科技有限公司昆明分公司 | State conversion device for realizing utilization of uninterrupted heat energy output of steelmaking converter |
-
2012
- 2012-03-01 CN CN 201210051501 patent/CN102559991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962884A (en) * | 2006-12-07 | 2007-05-16 | 昆明阳光数字技术股份有限公司 | Dry-method dust collection and surplus energy recovery device for steel-smelting converter flue gas |
| CN101117652A (en) * | 2007-08-02 | 2008-02-06 | 昆明阳光基业股份有限公司 | Gas modifying combustion-compensating device for converter evaporation cooling air flue |
| CN102051436A (en) * | 2010-10-29 | 2011-05-11 | 首钢总公司 | System and method for generating electricity by using secondary recycling of steel-making converter gas |
| CN102321779A (en) * | 2011-10-14 | 2012-01-18 | 孙慕文 | Converter smoke radiation type waste heat boiler recovery system |
| CN202482344U (en) * | 2012-03-01 | 2012-10-10 | 九源天能（北京）科技有限公司昆明分公司 | State conversion device for realizing utilization of uninterrupted heat energy output of steelmaking converter |
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Effective date of registration: 20170601 Address after: 100089, Beijing, Haidian District Qinghe East Jiayuan, building 836, room 1 Patentee after: Unimax day (Beijing) Technology Co., Ltd. Address before: 650020, room 17, 1307 Yinhai area, China World Trade Center center, Kunming, Yunnan Patentee before: Unimax day (Beijing) Technology Co., Ltd. Kunming branch |