CN202482346U - Steelmaking converter smoke heat recovery and total-effect utilization device - Google Patents
Steelmaking converter smoke heat recovery and total-effect utilization device Download PDFInfo
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- CN202482346U CN202482346U CN2012200734834U CN201220073483U CN202482346U CN 202482346 U CN202482346 U CN 202482346U CN 2012200734834 U CN2012200734834 U CN 2012200734834U CN 201220073483 U CN201220073483 U CN 201220073483U CN 202482346 U CN202482346 U CN 202482346U
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Abstract
The utility model discloses a steelmaking converter smoke heat recovery and total-effect utilization device which is realized by a system consisting of a system switching device, an afterburning device, a high-temperature smoke evaporative cooling device, a kindling catchment and heat exchange device, a smoke flameout and heat exchange device, a secondary coal economizer, a bag-type dust remover, a primary coal economizer, a gas pressurization unit and a three-way switching device. According to the device, a purging process in a non-steelmaking period is added to change the batch type superheated steam production of the converter smoke heat recovery device into the continuous superheated steam production, so that stable work energy is provided for waste heat power generation. Three superheated steams of 10.3MPa, 3..89MPa and 0.6MPa are produced and the average power-generation steam consumption is only 4.3T/103.kwh; and compared with the prior art, according to the device, the heat recovery rate is improved by twice, the thermoelectric conversion efficiency is improved by 1.86-2.79 times, the comprehensive power generation ability is improved by 7.44-11.16 times and the sensible heat recovery efficiency is improved by 2.5 times from 37.5 to 94.3. According to the steelmaking converter smoke heat recovery and total-effect utilization device, the steelmaking energy consumption can be effectively reduced and a technical foundation is laid for realizing negative-energy steelmaking..
Description
Technical field
The utility model belongs to the steelmaking equipment technical field, is specifically related to a kind of steel-making converter high-temperature flue gas energy recovery and the full use device of imitating based on LT converter coal gas purification recovery technology.
Background technology
Coal gas of converter is the important secondhand 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 ability " 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 supply the user to use.And can save huge circulating water system; The dust briquetting that reclaims can return converter and replace the iron ore utilization; System's resistance is decreased little, saves energy consumption.With regard to environmental protection and energy-conservation with regard to, the LT method is being represented the RECOVERY OF CONVERTER GAS technological development direction.But the LT method of prior art also comes with some shortcomings, and with regard to process aspect: 1, failure rate is high; 2, be prone to dewfall; 3, venting of dust explosion is frequent; 4, evaporative cooler is prone to fouling, and cleaning maintenance labour intensity is big; 5, need spray into water and nitrogen (steam), be not real dry method dust; 6, dust briquetting system need establish rotary kiln and makes system complex increase consumption; 7, recovery system interrupter duty, temperature variation are very big, and the thermal stresses of each equipment is very big, has influenced work-ing life; 8, electrostatic precipitator has electrical spark to have the generation that can't stop to explode.The heat energy recycle aspect: 1, holder generation steam is low-pressure saturated steam, and steam quality is low; 2, the sensible heat of converter gas below 1000 ℃ can't obtain recycling; 3, blowing initial stage and latter stage must stop when the coal gas oxygen level is defective reclaiming, and igniting is diffused, and has lost the latent heat of coal gas; 4, water spray makes that the coal gas of converter water cut is big, has reduced the Lower heat value of coal gas of converter.In sum, prior art LT method exists the recovery levels of latent heat and sensible heat low; Steam quality is low; Security of system is poor; Failure rate is high, many deficiencies that the maintenance of clean-up work is powerful.The RECOVERY OF CONVERTER GAS of China overwhelming majority steel mill utilizes effect all undesirable, and by 2008, ton steel coal-gas recovering amount on average was merely 60m
3About/t, differ greatly with external advanced level, therefore the coal-gas recovering technology is grasped in digestion as early as possible, and fully excavating equipment potential improves the RECOVERY OF CONVERTER GAS level safely and efficiently, has become the common issue that domestic most steel mill faces.The utility model people has developed a kind of steel-making converter high-temperature flue gas energy recovery and the full use device of imitating based on LT converter coal gas purification recovery technology through concentrating on studies for many years for this reason, and evidence is respond well.
The utility model content
The purpose of the utility model is to provide a kind of technology easy; Safe and reliable; Can effectively improve high-temperature flue gas energy recovery efficient; Raising steam quality and realization are supplied with continuously, based on the steel-making converter high-temperature flue gas energy recovery and the full effect use device of LT converter coal gas purification recovery technology.
The purpose of the utility model is achieved in that and comprises system's shifter, afterburning combustion unit, high-temperature flue gas apparatus for vapour-cooling, kindling material capture and heat-exchanger rig, flame-out heat-exchanger rig, secondary economizer, sack cleaner, one-level economizer, gas compressor, the threeway shifter of reaching of flue gas; Described system shifter, afterburning combustion unit are set in turn in converter fixedly on the petticoat pipe, and the high-temperature flue gas apparatus for vapour-cooling on the afterburning combustion unit connects kindling material capture and heat-exchanger rig successively, flue gas is flame-out and heat-exchanger rig, secondary economizer, sack cleaner, one-level economizer and three-way switch valve.
The utility model was worked through the purging phase that system's switching mechanism and afterburning combustion unit have increased the non-steel-making phase, became converter steelmaking batch production superheated vapour and was Sequential Production, for steam turbine power generation provides the stable work energy.Realized the efficient operation of heat reclaiming system and equipment.What produce is superheated vapour, and the low-temperature saturated steam generating efficiency that produces than prior art is high, the saturation steam of 0.6～1.2MPa, and the generating steam consumption is 8～12 tons/10
3Kwh; The utility model system can produce 10,3.89, three kinds of superheated vapours of 0.6MPa, and the steam consumption of on average generating electricity is 4.3T/10
3Kwh.Energy recovery efficient is 2 times of prior art LT method; Its conversion efficiency of thermoelectric is 1.86～2.79 times; Add the steam-electric power amount that non-steel-making phase afterburning coal gas is produced, the comprehensive electric generating ability is 7.44～11.16 times of prior art.The utility model method not consume water, do not consume steam, do not have igniting to diffuse loss and, do not need coke-oven gas or other igniter fuel the influence of environment.High-temperature flue gas purges technology, and assurance system no dust stratification in service, nothing are leaked, and long service life has reduced the maintenance and repair expense significantly.The utility model sensible heat organic efficiency brings up to 94.3% by 37.5% of prior art, is 2.5 times of prior art; Effectively reduce the steel-making energy consumption, established technical foundation for realizing " negative can steel-making ".
Description of drawings
Accompanying drawing concerns synoptic diagram for the utility model one-piece construction.
Among the figure: 1-system shifter, 2-afterburning combustion unit, 3-high-temperature flue gas apparatus for vapour-cooling, the 4-kindling material captures and heat-exchanger rig; The 5-primary superheater, 6-two stage superheater, the flame-out and heat-exchanger rig of 7-flue gas, 8-secondary economizer; The 9-gas compressor, 10-sack cleaner, 11-one-level economizer; The 12-flow measurement device, 13-deoxygenator, 14-1
#Drum, 15-2
#Drum, 16-three-way switch valve, 17-topworks, 18-attemperation of steam device; The a-gas entry, b-ash disposal passage, the outlet of c-dry powder ash, the outlet of d-superheated vapour, e-oiler feed mouth, f-gas exit, g-chimney, h-air outlet.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described, but never in any form the utility model is limited,, all belong to the protection domain of the utility model based on any change or the improvement that the utility model training centre is done.
Shown in accompanying drawing; The utility model comprises that described system shifter 1, afterburning combustion unit 2 are set in turn in fixedly on the petticoat pipe, and the high-temperature flue gas apparatus for vapour-cooling 3 on the afterburning combustion unit 2 connects successively that kindling material captures and heat-exchanger rig 4, flue gas is flame-out and heat-exchanger rig 7, secondary economizer 8, sack cleaner 10, one-level economizer 11 and three-way switch valve 16.
Described system shifter 1 is split embedded groove type flue state switching device for being arranged on the flue fixed cover.System's shifter 1 opens and closes interlocks with the up-down of oxygen rifle mutually; The oxygen rifle descends, steel-making beginning valve open, and flap is pulled to outside the flue; Valve does not receive the heating of high-temperature flue gas; Improve the working conditions of valve, can not change the flow field of original device high-temperature flue gas simultaneously, improved the security of system's operation.Steel-making finishes, and the oxygen rifle is mentioned valve interlocking close simultaneously, and this valve becomes the furnace bottom of coal combustion gas boiler again, and temperature is relatively low.
Described afterburning combustion unit 2 is the clearance type gas burner, is provided with coal gas and combustion air passage, and the alternate passage that passes through separately of coal gas and combustion air gets into the burning of gasification cooling flue internal diffusion.Because of institute's incendiary coal gas is to handle through deep purifying, dust content is extremely low (less than 10mg/Nm
3), the high-temperature flue gas that this moment burning is produced, the dust that can adhere on the heating surface when reclaiming coal gas is removed.Make heating surface remain cleaning.Be to guarantee flame degree of filling in the blister cooler, burner be installed on blister cooler around can not be less than four.Firing system is provided with the adjustable burner blower of revolution, reduces the pollution of environment with the oxygen level of control flue gas.
Described kindling material captures and the inlet end of heat-exchanger rig 4 is the high speed whirlwind fly-ash separator that inwall is provided with heat-exchanger rig, and described heat-exchanger rig is membrane type, wall type or solid matter tubular type vapor superheater; Described kindling material captures and heat-exchanger rig flue gas leading-out end is provided with solid matter tubular type vapor superheater, and its efficiency of dust collection can reach about 90%, and the outlet meso-position radius is 8.6 μ m, both can be used as the macrobead kindling material and has captured, and plays thick dust separating effect again.Arrange solid matter tubular type vapor superheater on its flue gas fairlead inwall, produce the superheated vapour of high, normal, basic three kinds of different pressures.
Described flue gas stops working and heat-exchanger rig 7 is the air-flowing type heat-exchanger rig, and tube shell type structure, tube side are exhaust gases passes, and shell side is a heat transferring medium, utilizes the High Speed Airflow Within knock down the flame.
Described flue gas heat exchanger components top flame-out and heat-exchanger rig 7 is provided with shoe, avoids abrasion with the protection interchanger, reaches durable and purpose safety anti-explosive, helps simultaneously to prevent that the heat exchanger components top from accumulating dust, prolongs system work-ing life.
Described kindling material capture and heat-exchanger rig 4 with flue gas flame-out and heat-exchanger rig 7 connecting pipe vertexs, and/or between sack cleaner 10 and the one-level economizer 11 on the pipeline, and/or the explosion-proof equipment interface is set, connection explosion-proof equipment 20 after the economizer respectively.
One place's explosion-proof equipment interface is set on the pipeline between described secondary economizer 8 and the gas compressor 9 at least, and connects explosion-proof equipment 20.
Described explosion-proof equipment 20 is the hydrolock explosion-proof equipment, and described hydrolock explosion-proof equipment is the U-shaped tubular construction, and explosion-proof reverse checkvalve 22 and water compensating valve 21 are set on it.
Described secondary economizer 8, one-level economizer 11 are tube and shell heat exchanger, and tube side is a gas flue, and shell side is a water stream channel.Can stop the coal gas generation gas poisoning that leaks.The water coolant of shell side is supplied with by power unit turbine recirculated cooling water, after the heat exchange of gas cooler interchanger, recycles after returning the cooling of turbine driven set recirculating cooling water system.
Behind the described one-level economizer gas compressor is set, is in negative pressure state before making gas compressor, be in barotropic state after the press, improve the yield of coal gas, prevent blast to prevent that air from bleeding.Described gas compressor is sent the coal gas that reclaims into the coal gas gas holder in the blowing process; The flue gas introducing smoke stack emission that to burn the back and lowered the temperature in the purging phase by system.
Described system shifter 1 is external opposite opened flue separation valve door.
Described burning coal gas derives from the mixed gas of purified converter gas, blast furnace gas or blast furnace gas and coke-oven gas.
Dust content＜10mg/Nm after the described sack cleaner dedusting
3
After the described one-level economizer 11 flow measurement device 12 is set.
The principle of work of the utility model:
Dry method converter gas recovery system is to follow the principle of flue gas cascade utilization; The utility model system is equivalent to be in series by high, medium and low three grades of boiler systemss; Be provided with two cover combustion units, in the coal-gas recovering phase (blowing process), steel-making converter is the burner of three boilers.In the non-coal-gas recovering phase (purging phase); By the system's shifter that is located on the fixing petticoat pipe; Gasification cooling flue and steel-making converter are isolated, by being located at the burner of afterburning combustion unit above the fixing petticoat pipe coal gas of converter (or mixed gas of blast furnace gas and coke-oven gas) after with reclaiming clean as three grades of series connection boilers.Promptly in the non-coal-gas recovering phase, this system is a gas fired-boiler that is independent of steelmaking system, can send into the coal gas of system through adjustment, the adjustment generation load.And be a complete dry method converter gas energy recovery and coal-gas recovering refining plant at this device of coal-gas recovering phase, can reclaim the sensible heat of converter gas efficiently, and can be with gas purification to dustiness less than 10mg/Nm
3Directly get into gas holder, supply other user and install the fuel of non-coal-gas recovering phase (purging phase) as this.The utility model switches through system; Through the work of afterburning combustion unit, make the influence between power generation system and the steelmaking system very little, shortened blow-on setup time; The thermal load of one-period variation is converted into the thermal load of continous-stable; Reduce the thermal stresses of each heating surface of the utility model system greatly, prolonged the life-span of system, reduced failure rate.
Flame-out and the heat-exchanger rig of described flue gas, economizer are tube and shell heat exchanger.Flue gas is a tube side, heat-eliminating medium is a shell side, has stopped the bleed possibility of flue gas of air, has guaranteed the safe operation of system.
The two-stage dedusting is adopted in the dedusting of the utility model system, and first step dedusting is captured by kindling material and heat-exchanger rig is accomplished, and its principle of work is high temperature cyclone dust removal, its efficiency of dust collection about 90%.At the dust separating macrobead kindling material of catching simultaneously, its dedusting outlet grit meso-position radius is 8.6 μ m, has eliminated to cause one of flammable gas explosion reason, plays explosion-proof effect.Because this converter gas recycle device, what flue gas cooling and energy recovery adopted is wall-type heat exchange, and heat transferring medium does not mix with flue gas, and flue gas can dewfall.Second stage dedusting can be accomplished by sack cleaner, can dust content be dropped to 10mg/Nm as smart dedusting
3Below, can supply other users to use behind the flue dust collecting.Join as the outlet of the economizer of low pressure evaporator and the inlet of sack cleaner; As long as economizer is provided with enough heating surfaces; No matter how evaporated flue import cigarette temperature changes; At this moment just the steam output of system changes, and the inlet flue gas temperature of sack cleaner remains at the low pressure evaporator temperature of saturation and adds the temperature-resistant of 20 ℃ of heat transfer temperature differences, can prevent the accident that causes cloth bag to burn because of sack cleaner inlet flue gas temperature fluctuation overtemperature.The utility model system does not have big friction and the spark that therefore collision can not produce enough energy to cause flammable gas explosion, has further improved the safety of system, has reduced the failure rate of system.
In preceding burning phase in blowing process and back burning phase, the coal gas amount of sending into system through adjusting make the coefficient of excess air of system remain on 1.05～0.95 can reduce NO significantly generation, the environment that reduced pollution protection.
The utility model heat-exchanger rig all adopts the indirect heat exchange mode; Flue gas does not directly contact mixing with heat transferring medium in the whole heat transfer process; Coal gas of converter heat exchange cooling back directly gets into gas chamber and supplies the user to use, and can stop coal gas dewfall in interchanger and fly-ash separator, causes interchanger and fly-ash separator fouling and collection mud; Reduce failure rate, reduced the labour intensity of safeguarding and clearing up.
The utility model system can produce the superheated vapour of successive HTHP, medium temperature and medium pressure and three kinds of parameters of low-temp low-pressure.The heat recovery efficiency of system can be up to 93.6%, and such heat recovery efficiency is higher than the thermo-efficiency of China's power system.The quality that has increased substantially recovered steam is used for generating with the steam that converter gas sensible heat that reclaims and 20% latent heat produce, and the electric weight that sends can satisfy the power consumption of (comprising oxygen generation system) of whole steelmaking system.Therefore it is economically viable carrying out the modified of flue gas and carry out energy recovery with 20% the latent heat that reclaims coal gas, can prevent that inflammable gas from blasting to have guaranteed the safety of system.Latent heat about 80% collects and supplies other users to use.
Industrial scale according to each steel mill is different with operant level; Thermal equilibrium according to each factory's steelmaking process; Can confirm the installation parameter and the capacity of each factory's power generation system; Installed capacity is selected for use according to high temperature, high pressure greater than we of 20MW, and middle temperature, middle pressure and low temperature, three kinds of inlet conditions of low pressure make the power generation system efficiency of thermal cycle greater than 35% efficiency of thermal cycle that generates electricity far above saturation steam.Improve the quality of steam, realized the utilization efficiently of institute's producing steam.We select the turbine driven set of middle temperature, middle pressure and low temperature, two kinds of inlet conditions of low pressure for use during less than 20MW in installed capacity, and its efficiency of thermal cycle is also far above the efficiency of thermal cycle of saturation steam generating.The electric weight that no matter adopts which kind of parameter to send all can satisfy whole steelmaking process and comprise the power consumption of making oxygen.Not only on the theory statistics, realize negative can steel-making, and on material object, really accomplish negative can steel-making.For realizing that electric weight that iron and steel enterprise utilizes the waste heat complementary energy that reclaims to be sent can satisfy the electricity consumption of whole iron and steel enterprise and have a surplus and contribute.
The working process of the utility model:
Blast for stopping system, the later stage begin through being located at the gas burner on the fixing petticoat pipe, in converter gas, send into coal gas and air after an amount of purification, control the O in the flue gas in blowing
2Composition is lower than 2%, and CO is lower than 1%.When rising movable gas hood, progressively interlocking close is located at the system's shifter on the fixing petticoat pipe, makes system be converted into gas-fired boiler by smoke eliminator.We send into an amount of coal gas and air makes the flue gas oxygen content through system be lower than 2% through control to system in the non-steel-making phase; And control is through the flue gas flow rate of each heating surface of system; Be not less than the flue gas flow rate of coal-gas recovering phase, can carry out deashing to each heating surface in the non-blowing process like this and purge.
Blowing early stage along with movable gas hood descends, interlocking is opened the system's shifter that is located on the fixing petticoat pipe, UNICOM's converter and coal-gas recovering refining plant, and out-of-blast, the O in the flue gas
2Content stopped to the device gas delivery less than 2% o'clock, accomplished the utility model system is reclaimed state to converter gas purification by the boiler operatiopn state conversion.At this moment device reclaims the sensible heat of converter gas, and the dustiness of flue gas is dropped to 10mg/Nm
3Below, O
2Content is lower than 1%, has guaranteed the recovery quality of coal gas of converter.Early stage is sent into an amount of coal gas and air to the coal gas of converter dust-removal system in non-blowing later stage in blowing process and blowing, makes its burning be lower than 2% purpose to reach the control flue gas oxygen content.And, stop to send into coal gas and air system normally reclaims coal gas to converter gas recovery system in the coal-gas recovering phase.At our flue gas O in an amount of coal gas of system's adding and air make system in the latter stage of initial stage and the blowing of blowing
2Concentration be lower than 2%.In CO in the flue gas and the firing system airborne 0
2Burning makes CO concentration in flue gas be lower than 1%, and the heat that burning produces reclaims by being located at the back recovery system, so the utility model system can cancel the igniting diffusion system, can accomplish to reclaim to greatest extent the latent heat and the sensible heat of coal gas.The igniting of having stopped blowing initial stage and later stage is diffused and has been reclaimed heat, has reduced environmental pollution, has saved igniter fuel.Can also send into the load that coal gas amount and the air capacity of system can Adjustment System through adjustment, make system loading more stable.
Claims (10)
1. a steel-making converter flue gas energy recovery reaches the full use device of imitating, and it is characterized in that comprising system's shifter (1), afterburning combustion unit (2), high-temperature flue gas apparatus for vapour-cooling (3), kindling material capture and heat-exchanger rig (4), flame-out heat-exchanger rig (7), secondary economizer (8), gas compressor (9), sack cleaner (10), one-level economizer (11), the threeway shifter (16) of reaching of flue gas; Described system shifter (1), afterburning combustion unit (2) are set in turn in fixedly on the petticoat pipe, and the high-temperature flue gas apparatus for vapour-cooling (3) on the afterburning combustion unit (2) connects successively that kindling material captures and heat-exchanger rig (4), flue gas is flame-out and heat-exchanger rig (7), secondary economizer (8), sack cleaner (10), one-level economizer (11) and three-way switch valve (16).
2. energy recovery as claimed in claim 1 and the full use device of imitating is characterized in that described system shifter (1) splits embedded groove type flue state switching device for being arranged on the flue fixed cover.
3. energy recovery as claimed in claim 1 and the full use device of imitating is characterized in that described afterburning combustion unit (2) is the clearance type gas burner, is provided with coal gas and combustion air passage.
4. energy recovery as claimed in claim 1 and the full use device of imitating; It is characterized in that described kindling material captures and the inlet end of heat-exchanger rig (4) is the high speed whirlwind fly-ash separator that inwall is provided with heat-exchanger rig, described heat-exchanger rig is membrane type, wall type or solid matter tubular type vapor superheater; Described kindling material captures and heat-exchanger rig flue gas leading-out end is provided with solid matter tubular type vapor superheater.
5. energy recovery as claimed in claim 1 and the full use device of imitating is characterized in that described flue gas stops working and heat-exchanger rig (7) is the air-flowing type heat-exchanger rig, and tube shell type structure, tube side are exhaust gases passes, and shell side is a heat transferring medium; Described heat-exchanger rig top is provided with wear-resistant device.
6. energy recovery as claimed in claim 1 and the full use device of imitating; It is characterized in that described kindling material captures and heat-exchanger rig (4) and flame-out heat-exchanger rig (7) the connecting pipe vertex that reaches of flue gas; And/or between sack cleaner (10) and the one-level economizer (11) on the pipeline; And/or the explosion-proof equipment interface is set respectively after the economizer, connect explosion-proof equipment (20).
7. energy recovery as claimed in claim 1 and the full use device of imitating is characterized in that being provided with at least on the pipeline between described secondary economizer (8) and the gas compressor (9) place's explosion-proof equipment interface, and connect explosion-proof equipment (20).
8. like claim 6 or 7 described energy recovery and the full use device of imitating; It is characterized in that described explosion-proof equipment (20) is the hydrolock explosion-proof equipment; Described hydrolock explosion-proof equipment is the U-shaped tubular construction, and explosion-proof reverse checkvalve (22) and water compensating valve (21) are set on it.
9. energy recovery as claimed in claim 1 and the full use device of imitating is characterized in that described secondary economizer (8), one-level economizer (11) are tube and shell heat exchanger, and tube side is a gas flue, and shell side is a water stream channel.
10. energy recovery as claimed in claim 1 and the full use device of imitating is characterized in that described one-level economizer (11) is provided with flow measurement device (12) afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200734834U CN202482346U (en) | 2012-03-01 | 2012-03-01 | Steelmaking converter smoke heat recovery and total-effect utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200734834U CN202482346U (en) | 2012-03-01 | 2012-03-01 | Steelmaking converter smoke heat recovery and total-effect utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202482346U true CN202482346U (en) | 2012-10-10 |
Family
ID=46956783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200734834U Expired - Lifetime CN202482346U (en) | 2012-03-01 | 2012-03-01 | Steelmaking converter smoke heat recovery and total-effect utilization device |
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| CN (1) | CN202482346U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322552A (en) * | 2013-07-09 | 2013-09-25 | 汤赛华 | Single-pressure saturated-steam superheat boiler |
| CN103484597A (en) * | 2013-09-23 | 2014-01-01 | 宁波大学 | Dust-removing and heat-recovering system for furnace gas of steel converter and processing method therefor |
| CN105087854A (en) * | 2015-08-26 | 2015-11-25 | 天津泰通金属结构制造有限公司 | Dry dedusting and process waste heat stair type recover device and method for high-temperature flue gas of converter |
| CN108265152A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德恒源科技发展有限公司 | Pneumatic steelmaking coal gas complete recovering technique and its control method based on nitrogen compensation |
-
2012
- 2012-03-01 CN CN2012200734834U patent/CN202482346U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322552A (en) * | 2013-07-09 | 2013-09-25 | 汤赛华 | Single-pressure saturated-steam superheat boiler |
| CN103484597A (en) * | 2013-09-23 | 2014-01-01 | 宁波大学 | Dust-removing and heat-recovering system for furnace gas of steel converter and processing method therefor |
| CN103484597B (en) * | 2013-09-23 | 2015-07-15 | 宁波大学 | Dust-removing and heat-recovering system for furnace gas of steel converter and processing method therefor |
| CN105087854A (en) * | 2015-08-26 | 2015-11-25 | 天津泰通金属结构制造有限公司 | Dry dedusting and process waste heat stair type recover device and method for high-temperature flue gas of converter |
| CN108265152A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德恒源科技发展有限公司 | Pneumatic steelmaking coal gas complete recovering technique and its control method based on nitrogen compensation |
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