CN105238904A - Low-energy-consumption semidry-method dust removal system based on evaporative cooling for primary flue gas of converter - Google Patents
Low-energy-consumption semidry-method dust removal system based on evaporative cooling for primary flue gas of converter Download PDFInfo
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000003546 flue gas Substances 0.000 title claims abstract description 119
- 239000000428 dust Substances 0.000 title claims abstract description 86
- 238000001816 cooling Methods 0.000 title claims abstract description 83
- 238000005265 energy consumption Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 288
- 238000005507 spraying Methods 0.000 claims abstract description 128
- 238000005406 washing Methods 0.000 claims abstract description 110
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 94
- 230000018044 dehydration Effects 0.000 claims abstract description 93
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims description 136
- 239000007789 gas Substances 0.000 claims description 66
- 230000005068 transpiration Effects 0.000 claims description 51
- 239000012530 fluid Substances 0.000 claims description 40
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- 239000000779 smoke Substances 0.000 claims description 32
- 239000000443 aerosol Substances 0.000 claims description 18
- 229910001651 emery Inorganic materials 0.000 claims description 14
- 239000010977 jade Substances 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 238000004062 sedimentation Methods 0.000 claims description 11
- 238000002309 gasification Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 238000005189 flocculation Methods 0.000 claims description 8
- 230000016615 flocculation Effects 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 230000004087 circulation Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000002455 scale inhibitor Substances 0.000 claims description 3
- -1 centrifugation Substances 0.000 claims description 2
- 239000003034 coal gas Substances 0.000 abstract description 8
- 230000001174 ascending effect Effects 0.000 abstract 2
- 239000000112 cooling gas Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 23
- 230000008569 process Effects 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000011084 recovery Methods 0.000 description 15
- 238000000746 purification Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 2
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- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- 238000005200 wet scrubbing Methods 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention relates to a low-energy-consumption semidry-method dust removal system based on evaporative cooling for primary flue gas of a converter. The system comprises an evaporative cooling washing tower, a spraying drenching girth washing dehydration integrated tower and a horizontal type swirl dehydrator, wherein the evaporative cooling washing tower is connected with an evaporative cooling gas duct; the horizontal type swirl dehydrator is connected with a fan inlet pipe network; a gas-water separation chamber is arranged at the lower end of the evaporative cooling washing tower; the outlet end of the gas-water separation chamber is connected with the inlet end of an ascending type whirl water-film dust removal pipe; the outlet end of the ascending type whirl water-film dust removal pipe is connected with the inlet end of the spraying drenching girth washing dehydration integrated tower through a flue gas duct; the outlet end of the spraying drenching girth washing dehydration integrated tower and the inlet end of a dehydration tower are connected with connection pipelines tangentially; and the evaporative cooling washing tower, the spraying drenching girth washing dehydration integrated tower and the dehydration tower share one recirculation water treatment system. According to the low-energy-consumption semidry-method dust removal system, stricter dust emission standards or requirements are met; the quality of recovered coal gas is improved; the cooling and dedusting water treating capacity is reduced; the energy consumption is reduced; and the reliability and the safety of the system operation are improved.
Description
Technical field
The present invention relates to a kind of dust-removal system, particularly relate to a kind of converter flue gas based on transpiration-cooled less energy-consumption semidrying dust-removal system, belong to prevention and control of air pollution and flue gas cooling and dedusting technical field.
Background technology
Environmental issue has become an important factor of restriction China Iron And Steel Industry sustained and coordinated development.October 1, 2012 implementation of the "iron and steel industry air pollutant emission standard" (GB28664-2012), for steel enterprises set stricter air pollutant emission control requirements and limits.On February 27th, 2013, country determines that again the industry such as iron and steel, cement all will start to perform the special emission limit of atmospheric polluting material at Different periods, on January 1st, 2015 starts, no matter newly-built or existing enterprise, its emission concentration all must reach below 50mg/m3, on February 27th, 2013, country determines that the industry such as iron and steel, cement starts to perform the special emission limit of atmospheric polluting material at Different periods; According to the trend that Environmental specification of quality is more and more strict, current more city and enterprise fix on below 30mg/Nm3 enterprise's internal control smoke dust discharge concentration.New environmental law the tightest in China's history came into effect from January 1st, 2015, and following closely, all refinement policies that various places are worked out according to new environmental law will be put into effect successively.
Current environmental protection pollution treatment is in the critical period solving the old and new's problem, and as the converter steelmaking link of one of the important source of pollution of iron and steel enterprise, a converter flue gas particles discharge is the dye thing thing exhausting control source listed in especially in national standard.The treatment process be applicable to, how according to practical situation, is selected by enterprise, realizes the efficiency upgrading of converter gas purification and recovery process technology, has become focus and the focus of iron and steel enterprise's modern converter steel-making energy-saving and emission-reduction.
The features such as converter generates a large amount of high-temperature gases in oxygen blast smelting process, and converter gas has high temperature, flow is large, dustiness is many, toxic and explosive, when method gas recovery is not fired in employing, in furnace gas, the main oxides CO content of carbon on average accounts for 70%.When blowing simultaneously, due to the play row of the evaporation of iron under high temperature action, air-flow stir, a variety of causes such as the explosion of CO bubble and splash produces a large amount of stove dirt, its total amount is about the 1%-2% of metal charge, be about 10%--20Kg/t steel, stove dirt is mainly the dust such as FeO, Fe2O3, CaO, SiO2, and dustiness is about 80-150g/Nm
3.Its particle diameter major part when furnace gas does not fire is 10
more than m, after furnace gas burning, then major part is 1
below m, trapping difficulty is large relatively.
Converter current (flue gas) gas purification and recovery system gas cleaning mode mainly contain the forms such as complete wet OG method, semidrying (dry wet combines) and dry method LT method, the converter gas purification and recovery process more than 70% run be with Japanese OG method technique be representative wet-scrubbing equipment and usual wet method OG.
Introduce and digest the literary composition gas purification of wet method saturator and recovery system and the New O G technology of transplanting in recent years, mainly improve two civilian aditus laryngis, change R--D, PA class Venturi meter into heavy mound type adjustable annular gap scrubber, cancellation-Wen simultaneously, replaces saturated cooling tower, its technology maturation, processing unit is simple, easy to operate, particularly technology controlling and process aspect, automatic or manual controls all very safe and reliable.
But its shortcoming also clearly: the new OG wet method system resistance usually split is damaged still high: in actual use, blower press reaches 22KPa--24KPa usually; System water amount is large, and supporting water treating equipment are huge; Maintenance of equipment amount is large, and working cost is high.
The water trap of usual OG wet method system and tower literary composition wash and process water is same circulating water treatment waterworks.In actual moving process, reuse recirculated water suspended substance mass concentration usually exceeds 150mg/L requirement, even > 250mg/L in many situations.
The costs and poor dehydration results of usual OG wet method system, from tower literary composition, flue gas is just in wet state of saturation always, aqueous vapor inferior separating effect, free water content is high, in flue gas, a large amount of washing drop and wash-down water drop form the free water smoke being the nucleus of condensation with soot dust granule thing, export with flue gas and diffuse, make usual OG wet method system form resistance high, but efficiency of dust collection is difficult to the chronic disease of raising.Smoke dust discharge concentration is usually at 80mg/Nm
3--100mg/Nm
3between and unstable, be difficult to adapt to more and more strict national atmosphere pollutants emission standards.
In order to adapt to new national atmosphere pollutants emission standards, occur in recent years-new a bit OG system as Ta-Ta-Wen-dehydration tower, but its technical process long, take up room large, bend is many, resistance damage large, water consumption is large but efficiency of dust collection is difficult to improve.
Introduce and digest the literary composition gas purification of wet method saturator and recovery system and the New O G technology of transplanting in recent years, tower is that washing integrated tower or tower literary composition split, but application process-in limit across space because the converter of original part factory building is high, transpiration cooling circular seam washing integrated tower can not be met by dress height, on the other hand, converter current steel making working procedure is toward living because the existence of converter smelting operating mode is re-blow, fire door slagging scorification, iron ore, furnace charge, refrigerants etc. enter stove furnace charge relative mistake, enter system dust contained flue gas concentration high, preposition cooling scrubbing dust collection grade dust-collection efficiency is low, thus the total efficiency of dust collection of dust-removal system is difficult to improve.Adopt OG method gas purification and recovery process to major part, meet stricter energy-saving and emission-reduction requirement, the grade dust-collection efficiency improving each composition of dust-removal system is crux.
Summary of the invention
For above-mentioned defect, the object of the present invention is to provide a kind of converter flue gas based on transpiration-cooled less energy-consumption semidrying dust-removal system, based on transpiration-cooled principle, by at special process section, adopt two-fluid spray gun, pressure water fog spraying gun and flue gas cyclone technique, improve high-temperature flue gas water smoke transpiration cooling speed and efficiency of dust collection, by being connected in series circular water treating system on the spot, adopt High-efficiency grey water isolation technique, improve serial connection water supply quality and the water yield, effectively prevent the accidents such as the obstruction of spray generator, thus reach water-saving and electricity-saving, gas recovery system less energy-consumption safe operation, by improving cooling, dedusting, the fractional efficiency of each component units of dewatering system, thus improve total efficiency of dust collection of dust-removal system, the higher dust emission standard of converter coal gas purification recovery system or requirement can be met, promote the quality of gas recovery, reduce cooling dust-water treatment amount, reduce energy consumption, improve the reliability of system cloud gray model, security.
The technical solution adopted in the present invention is for this reason:
Comprise the transpiration cooling washing tower be connected with gasification cooling flue, spraying spray circumferential weld washing dehydration integrated tower and the horizontal cyclone water trap be connected with fans entrance pipe network, the lower end of described transpiration cooling washing tower is provided with air-water separation chamber, the exit end of described air-water separation chamber is connected with the entrance end of upstriker eddy flow moisture film dust removing tube, the exit end of upstriker eddy flow moisture film dust removing tube is connected by flue with the entrance end spraying circumferential weld washing dehydration integrated tower, the exit end of described spraying spray circumferential weld washing dehydration integrated tower is connected with the inlet end of horizontal cyclone water trap, described spraying spray circumferential weld washing dehydration integrated tower is provided with one and is connected in series circular water treating system on the spot,
Described transpiration cooling washing tower is divided into upper and lower twoth district, upper district is transpiration cooling dedusting area, inferior segment is spraying spray washing district, be provided with some layers of two-fluid spray gun or two-fluid spray gun and combination that is unidirectional or bidirection press water fog spraying gun I in transpiration cooling dedusting area, in spraying spray washing district, be provided with the unidirectional or bidirection press water fog spraying gun II of some floor;
Described two-fluid spray gun comprises two-fluid spray nozzle, water supply supply air line and water supply air feed control unit, and gas selects nitrogen or steam or other to have certain pressure rare gas element;
Described unidirectional or bidirection press water fog spraying gun I and unidirectional or bidirection press water fog spraying gun II comprises hollow or solid high-efficiency atomizing nozzle, water-supply line and water circulation unit;
The downward unidirectional spray gun I in some layers of direction is provided with from top to bottom in described upstriker eddy flow moisture film dust removing tube, described upstriker eddy flow moisture film dust removing tube outer wall is provided with liquid film overflow groove, described liquid film overflow groove is positioned at below flue, and described liquid film overflow groove is provided with water inlet pipe;
Upper and lower twoth district are divided into by inclined clapboard in described spraying spray circumferential weld washing dehydration integrated tower, upper district is aerosol mixed flow dedusting area, inferior segment is combination region, top, described combination region is divided into dehydrating demisting district, lower part is gravity dewatering zone, described aerosol mixed flow dedusting area is connected by flue gas thrust-augmenting nozzle with between combination region, Nei Yanta center, described aerosol mixed flow dedusting area is provided with the downward unidirectional spray gun II in some layers of direction from top to bottom, be provided with adjustable circumferential weld weight washer in described combination region to be connected with flue gas thrust-augmenting nozzle lower end, the annular space that the shell of adjustable circumferential weld weight washer and inclined clapboard are formed is eddy flow drying zone, be provided with nozzle directly over described flue gas thrust-augmenting nozzle axle center and rotate mixed flow producer, described nozzle rotates between mixed flow producer and flue gas thrust-augmenting nozzle and is provided with the unidirectional spraying nozzle of one deck, described unidirectional spraying nozzle direction is downward along flue gas thrust-augmenting nozzle axle center,
The annular space that the shell of described adjustable circumferential weld weight washer and inclined clapboard are formed is eddy flow drying zone, some layers export-oriented dedusting dehydration spiral board and the export-oriented dehydrating demisting spiral board of some layers is provided with from bottom to top successively in described eddy flow drying zone, the described export-oriented upper and lower two ends of dehydrating demisting spiral board are respectively equipped with two-way gap and rinse water fog spraying gun, and the described export-oriented dedusting dehydration upper and lower two ends of spiral board are respectively equipped with two-wayly often opens water fog spraying gun;
The exit end of described spraying spray circumferential weld washing dehydration integrated tower is positioned at below inclined clapboard;
Described horizontal cyclone water trap comprises smoke-intake pipe road, smoke pipeline, water trap and export-oriented dehydration spiral board, described water trap is tube structure, the entrance in described smoke-intake pipe road is connected with the exit end spraying circumferential weld washing dehydration integrated tower, the outlet in described smoke-intake pipe road and the entrance of smoke pipeline are positioned at water trap and in same level, described water trap lower end is provided with liquid collecting bucket, export-oriented dehydration spiral board is provided with in described smoke-intake pipe road, described export-oriented dehydration spiral board is positioned at the exit in smoke-intake pipe road, the front of described export-oriented dehydration spiral board is provided with towards the unidirectional spray gun III of water trap,
The lower end of described air-water separation chamber, spraying spray circumferential weld washing dehydration integrated tower and water trap is respectively equipped with self-stip water lute drainer I, self-stip water lute drainer II and self-stip water lute drainer III, and the buck in described self-stip water lute drainer I directly enters overhead chute by buck comb;
The described circular water treating system that is connected in series on the spot comprises hydrocyclone seperator of ash and water, described hydrocyclone seperator of ash and water is connected with self-stip water lute drainer II and self-stip water lute drainer III by buck comb, the lower end outside of the aerosol mixed flow dedusting area of described spraying spray circumferential weld washing dehydration integrated tower is connected with self-stip water lute drainer II by buck comb, the middle part of described hydrocyclone seperator of ash and water is connected with pumping station system by reuse water pump, pumping station system is connected with the unidirectional or bidirection press water fog spraying gun II in transpiration cooling washing tower by return water pipe, pumping station system is connected with the upper end of hydrocyclone seperator of ash and water by back flushing return water pipe, the lower end of hydrocyclone seperator of ash and water is connected with overhead chute by blow-off pipe.
further, described transpiration cooling washing tower is connected with the end of gasification cooling flue by overflow water seal or Non-Metallic Expansion Joints.
further, described flue is positioned at the top of the inclined clapboard of spraying spray circumferential weld washing dehydration integrated tower, when the exit end of flue is between the inlet end and inclined clapboard of flue gas thrust-augmenting nozzle, the entrance end of flue and exit end are respectively with the exit end of upstriker eddy flow moisture film dust removing tube with the entrance end that sprays circumferential weld washing dehydration integrated tower of spraying is tangent is connected, when the exit end of flue is positioned at above the inlet end of flue gas thrust-augmenting nozzle, the entrance end of flue is connected with upstriker eddy flow moisture film dust removing tube is tangent, the exit end of flue is connected with the entrance end radial direction spraying circumferential weld washing dehydration integrated tower.
further, described adjustable circumferential weld weight washer comprises adjustable annular gap scrubber body, liftable is heavily cut or polish jade with an emery wheel, hydraulic efficiency servo-gear and guide rod.
further, described nozzle rotates mixed flow producer and comprises permanent joint, core bar, rotary nozzle and fin, be connected in permanent joint inner chamber in described core bar, core bar lower end is through permanent joint, core bar lower end cylindrical cover has crossover sub, crossover sub lower end cylindrical socket rotary nozzle, being provided with sleeve between core bar and permanent joint inwall is connected on permanent joint inwall, core bar upper end is provided with boss, ball I is provided with between boss lower surface and sleeve upper end, groove is provided with between crossover sub upper end and core bar outer wall, ball II is provided with in groove, rotary nozzle sidewall is arranged with two fins, on rotary nozzle sidewall along Inner chamber sidewall tangent line be arranged with eccentric wire plug-flow spout and between two fins, rotary nozzle lower end is provided with water fog applicator.
further, the upper end of described hydrocyclone seperator of ash and water is provided with upflow tube and is connected with overhead chute, and the lower end of described hydrocyclone seperator of ash and water is provided with mud discharging mouth, and described mud discharging mouth place is provided with spoil disposal transfer roller.
further, described unidirectional spray gun I, unidirectional spray gun II, unidirectional spray gun III are the combination of two-fluid spray gun or two-fluid spray gun and pressure water fog spraying gun.
further, described nozzle rotates mixed flow producer and heavily cuts or polish jade with an emery wheel online conveying good antiscale property mixed liquid and flocculation agent by the negative pressure of flue gas thrust-augmenting nozzle to the aditus laryngis of adjustable circumferential weld weight washer and liftable, by the chelating of Scale inhibitors, the fouling that dissemination effectively prevents adjustable circumferential weld weight washer aditus laryngis and liftable heavily to cut or polish jade with an emery wheel occurs, thus promote and stablize adjustable circumferential weld weight washer to the smart dedusting of flue gas and temperature reduction performance, the flocculation agent simultaneously added makes the buck entering hydrocyclone seperator of ash and water flocculate, cohesion is accelerated in hydrocyclone seperator of ash and water, centrifugation, concentrate and sedimentation.
Further, described two-fluid spray gun comprises two-fluid spray nozzle, water supply supply air line and water supply air feed control unit, and gas selects nitrogen or steam or other to have certain pressure rare gas element.
Further, described pressure water fog spraying gun comprises hollow or solid high-efficiency atomizing nozzle, water-supply line and water circulation unit.
Further, described its water inlet pipe of liquid film overflow groove tangentially enters overflow groove along liquid film overflow groove circle, overflow groove is by the horizontal overflow weir overflow of profile of tooth, the tube wall in upstriker eddy flow moisture film dust removing tube is made circumferentially to form the moisture film of the very thin constantly downward Uniform Flow of one deck, the wall stream that the pressure water smoke that unidirectional spray gun I sprays is formed under the effect of rotating centrifugal raising force and moisture film collect, the negative pressure that ash-laden gas is imported by spraying spray circumferential weld washing dehydration integrated tower gas approach under blower negative pressure effect produces and rotates raising force, by centrifugal action get rid of moistening travel fatigue to inwall adhere to by moisture film, flow to lower end along inwall to drain.
Further, the wall stream formed under the effect of rotating centrifugal raising force in described upstriker eddy flow moisture film dust removing tube can be the wall stream that formed under the effect of rotating centrifugal raising force of the pressure water smoke adopting separately pressure water fog spraying gun to spray or the moisture film wall stream of the constantly downward Uniform Flow adopting separately the horizontal overflow weir overflow of overflow groove profile of tooth to be formed.
Further, described hydrocyclone seperator of ash and water, be that vertebral body forms by the right cylinder of top hollow and bottom, the upper end inwall of hydrocyclone seperator of ash and water is circumferentially provided with the arc shaped rotary stream guide path of inclination.
Further, the buck collected enters hydrocyclone seperator of ash and water along buck comb waterpower, its water-drop point is in the upper end of the arc shaped rotary stream guide path tilted, buck pours hydrocyclone seperator of ash and water along the arc shaped rotary stream guide path rotary-cut of tilting under hydraulic action, producing tangential hydrocyclone drives the buck in hydrocyclone seperator of ash and water rotate along barrel and produce centrifugal force, shown in nozzle rotate mixed flow producer and heavily cut or polish jade with an emery wheel online conveying good antiscale property mixed liquid and flocculation agent by the negative pressure of flue gas thrust-augmenting nozzle to the aditus laryngis of adjustable circumferential weld weight washer and liftable, the fouling that effectively the adjustable circumferential weld weight washer aditus laryngis of prevention and liftable are heavily cut or polish jade with an emery wheel on the one hand occurs, the buck making spraying spray circumferential weld washing dehydration integrated tower enter hydrocyclone seperator of ash and water on the spot on the other hand flocculates, under gravitational and centrifugal forces, that condenses is thicker, heavier particulate matter sedimentation also obtains concentrated and sedimentation in the vertebral body of hydrocyclone seperator of ash and water, concentrated plaster is by delivering to converter plaster comprehensive reutilization point by spoil disposal transfer roller, supernatant liquor is by reuse water pump, pumping station system promotes and is sent in transpiration cooling washing tower for unidirectional or bidirection press water fog spraying gun II, and establish bypass for system wash-down water.
advantage of the present invention is:
1) the present invention is based on transpiration-cooled principle, adopt transpiration cooling at specific position and spray compounding technology, improve system heat exchange efficiency and high-temperature flue gas water smoke transpiration cooling speed, adopt evaporation cooling high-temperature flue gas, the heat of identical injection flow rate is 10 times of traditional OG wet method, therefore the water consumption of cooled flue gas and dry method close.
2)
the buck that spraying spray circumferential weld washing dehydration integrated tower is collected is serially connected with transpiration cooling washing tower bottom by the present invention on the spotin spraying spray washing district, unidirectional or bidirection press water fog spraying gun II uses, directly reduces de-dusting cycle process service discharge 20%, and relatively traditional OG system dust removing water consumption reduction by 50%, reduction of discharging of saving water and energy is with the obvious advantage.
3) the present invention is by being connected in series circular water treating system on the spot, adopts High-efficiency grey water isolation technique, increases serial connection service discharge, improve serial connection water supply quality, effectively prevent the accidents such as the obstruction of spray generator, thus reach water-saving and electricity-saving, gas recovery system less energy-consumption safe operation.
4) the present invention adopt multi-stage serial connection to cool, dedusting dehydration technique, transpiration cooling, the grade dust-collection efficiency of scrubbing dust collection unit and flue gas cooling performance are increased substantially, compare when other conditions are identical, the present invention adopts multi-stage serial connection to cool, dedusting dehydration technique, make the flue gas entering adjustable annular gap scrubber fully clean, adjustable annular gap scrubber entrance dust conceltration than usual converter once the civilian entrance concentration of new OG method system two reduce by 60%.Compare usual converter once new OG method, under same pressure differential, liquid-gas ratio condition, converter of the present invention flue gas is based on transpiration cooling less energy-consumption semidrying dust-removal system, due to entrance dust concentration than adjustable annular gap scrubber entrance dust concentration in usual converter once new OG method and flue-gas temperature low, thus once new OG method is lower to make outlet dust concentration compare usual converter with flue-gas temperature; Temperature reduces, stickiness reduces, system obtains higher efficiency of dust collection and heat exchange efficiency, in other words, compare usual converter once new OG method, in identical liquid-gas ratio condition, the two will obtain identical exhanst gas outlet concentration in adjustable annular gap scrubber outlet, adopt converter of the present invention flue gas to compare lower based on the resistance damage of transpiration cooling less energy-consumption semidrying dust-removal system technology consumption, system highlights less energy-consumption feature.
5) the present invention adopts two-fluid (aqueous vapor) spray gun and pressure water fog spraying gun to combine and flue gas cyclone technique before adjustable annular gap scrubber entrance, well-mixed water smoke is made to enter annular gap scrubber under blower negative pressure effect, lower flue-gas temperature can be obtained before making annular gap scrubber, thus improve fine particle in annular gap scrubber cohesion collection efficiency.
6) system element equipment is few, resistance damage is little, and compare usual converter once new OG method system, reduction by 18% is damaged in resistance, and combination unit system cloud gray model power consumption reduces by 22%, expectation economize on electricity 1.2 KWhs/ton of steel.
7) system element equipment serial connection, institute takes up space and plane is taken up an area little, reduces about 30% relative to common new OG Fa Tawen dust collecting process floor space, and system is simple and clear, and flow process is unobstructed compact, system maintenance and simple, convenient.
8) employing upstriker eddy flow moisture film dust removing tube, manages interior some layers of two-fluid (aqueous vapor) spray gun setting up and down and pressure water fog spraying gun combines or adopt some layers of two-fluid (aqueous vapor) spray gun separately, the moisture film of the continuous downward Uniform Flow that the wall stream adopting the pressure water smoke of lance ejection to be formed under the effect of rotating centrifugal raising force and the horizontal overflow weir overflow of overflow groove profile of tooth in upstriker eddy flow moisture film dust removing tube vertical tube are formed collects, the tangential negative pressure that ash-laden gas is imported by integrated tower gas approach under blower negative pressure effect produces and rotates raising force, by centrifugal action get rid of moistening dust to inwall adhere to by moisture film, flow to lower end along inwall to drain, upstriker eddy flow moisture film dust removing tube utilizes eddy flow centrifugation that moistening grit particulate matter is separated from gas, dust-removal system critical grain size or cut diameter can be reduced, increase substantially rotational flow dust-removing fractional efficiency thus improve transpiration cooling, effectively prevent again tube wall incrustation from occurring while the grade dust-collection efficiency of scrubbing dust collection unit and flue gas cooling performance.The water mists that independent employing some groups of two-fluids (aqueous vapor) spray gun produces and the tangential negative pressure that ash-laden gas is imported by integrated tower gas approach under blower negative pressure effect produce and rotate raising force and mix, by centrifugal action get rid of moistening dust to inwall adhere to by moisture film down and let out, the water smoke of mixing enters annular gap scrubber under blower negative pressure effect, improve fine particle in annular gap scrubber cohesion collection efficiency, the higher dust emission standard of converter coal gas purification recovery system or requirement can be met.
9) multi-stage serial connection cools, dedusting dehydration technique, because space heat transfer volume is large, flow of flue gas path length, evaporation, cooling, more room and time is won in scrubbing dust collection, system outlet flue gas gas temperature compares usual converter, and once new OG method system is low, thus, in flue gas, in moisture content and flue gas, saturated moisture content comprises OG system of new generation than usual OG system and reduces, the water content in coal gas is significantly reduced during gas recovery, improve caloric power of gas, greatly reduce simultaneously and export moisture with wet flue gas, reduce systemic circulation water consumption and water treatment expense, promote the gas quality reclaimed.
10) compared with OG system of new generation, because discharge dust contained flue gas concentration is low, significantly can slow down the few blowing out of the equipment generation dust probability ， Minus such as draught fan impeller and examine clearly the time, improve production operational availability, extend the work-ing life of gas recovery system equipment and blower fan.Because dustiness after gas cleaning is low, humidity is low, abradability is little, greatly reduce system maintenance work amount, improve reliability and the security of system cloud gray model.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation that in Fig. 1, nozzle rotates mixed flow producer.
Fig. 3 is the vertical view of Fig. 2.
In figure, 1 is gasification cooling flue, 2 is transpiration cooling washing towers, 3 is spraying spray circumferential weld washing dehydration integrated towers, 4 is horizontal cyclone water traps, 5 is air-water separation chambers, 6 is upstriker eddy flow moisture film dust removing tubes, 7 is flues, 8 is two-fluid spray guns, 9 is unidirectional or bidirection press water fog spraying gun I, 10 is unidirectional or bidirection press water fog spraying gun II, 11 is unidirectional spray gun I, 12 is liquid film overflow grooves, 13 is water inlet pipes, 14 is inclined clapboards, 15 is flue gas thrust-augmenting nozzles, 16 is unidirectional spray gun II, 17 is that nozzle rotates mixed flow producer, 18 is unidirectional spraying nozzles, 19 is export-oriented dedusting dehydration spiral boards, 20 is export-oriented dehydrating demisting spiral boards, 21 is that water fog spraying gun is rinsed in two-way gap, 22 is two-wayly often open water fog spraying gun, 23 is smoke-intake pipe roads, 24 is smoke pipelines, 25 is water traps, 26 is export-oriented dehydration spiral boards, 27 is liquid collecting buckets, 28 is unidirectional spray gun III, 29 is self-stip water lute drainer I, 30 is self-stip water lute drainer II, 31 is self-stip water lute drainer III, 32 is buck combs, 33 is overhead chutes, 34 is hydrocyclone seperator of ash and water, 35 is reuse water pumps, 36 is pumping station systems, 37 is return water pipes, 38 is back flushing return water pipes, 39 is blow-off pipes, 40 is adjustable annular gap scrubber bodies, 41 is that liftable is heavily cut or polish jade with an emery wheel, 42 is hydraulic efficiency servo-gears, 43 is guide rods, 44 is permanent joints, 45 is core bars, 46 is rotary nozzles, 47 is fins, 48 is crossover subs, 49 is sleeves, 50 is ball I, 51 is ball II, 52 is plug-flow spouts, 53 is water fog applicators, 54 is upflow tubes, 55 is spoil disposal transfer rollers.
Embodiment
A kind of converter flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, comprise the transpiration cooling washing tower 2 be connected with gasification cooling flue 1, spraying spray circumferential weld washing dehydration integrated tower 3 and the horizontal cyclone water trap 4 be connected with fans entrance pipe network, the lower end of described transpiration cooling washing tower 2 is provided with air-water separation chamber 5, the exit end of described air-water separation chamber 5 is connected with the entrance end of upstriker eddy flow moisture film dust removing tube 6, the exit end of upstriker eddy flow moisture film dust removing tube 6 is connected by flue 7 with the entrance end spraying circumferential weld washing dehydration integrated tower 3, the exit end of described spraying spray circumferential weld washing dehydration integrated tower 3 is connected with the inlet end of horizontal cyclone water trap 4, described spraying spray circumferential weld washing dehydration integrated tower 3 is provided with one and is connected in series circular water treating system on the spot,
Described transpiration cooling washing tower 2 is divided into upper and lower twoth district, upper district is transpiration cooling dedusting area, inferior segment is spraying spray washing district, be provided with some layers of two-fluid spray gun 8 or two-fluid spray gun 8 and combination that is unidirectional or bidirection press water fog spraying gun I9 in transpiration cooling dedusting area, in spraying spray washing district, be provided with the unidirectional or bidirection press water fog spraying gun II10 of some floor;
Described two-fluid spray gun 8 comprises two-fluid spray nozzle, water supply supply air line and water supply air feed control unit, and gas selects nitrogen or steam or other to have certain pressure rare gas element;
Described unidirectional or bidirection press water fog spraying gun I9 and unidirectional or bidirection press water fog spraying gun II10 comprises hollow or solid high-efficiency atomizing nozzle, water-supply line and water circulation unit;
The downward unidirectional spray gun I11 in some layers of direction is provided with from top to bottom in described upstriker eddy flow moisture film dust removing tube 6, described upstriker eddy flow moisture film dust removing tube 6 outer wall is provided with liquid film overflow groove 12, described liquid film overflow groove 12 is positioned at below flue 7, and described liquid film overflow groove 12 is provided with water inlet pipe 13;
Upper and lower twoth district are divided into by inclined clapboard 14 in described spraying spray circumferential weld washing dehydration integrated tower 3, upper district is aerosol mixed flow dedusting area, inferior segment is combination region, top, described combination region is divided into dehydrating demisting district, lower part is gravity dewatering zone, described aerosol mixed flow dedusting area is connected by flue gas thrust-augmenting nozzle 15 with between combination region, Nei Yanta center, described aerosol mixed flow dedusting area is provided with the downward unidirectional spray gun II16 in some layers of direction from top to bottom, be provided with adjustable circumferential weld weight washer in described combination region to be connected with flue gas thrust-augmenting nozzle 15 lower end, the annular space that the shell of adjustable circumferential weld weight washer and inclined clapboard 14 are formed is eddy flow drying zone, be provided with nozzle directly over described flue gas thrust-augmenting nozzle 15 axle center and rotate mixed flow producer 17, described nozzle rotates between mixed flow producer 17 and flue gas thrust-augmenting nozzle 15 and is provided with the unidirectional spraying nozzle 18 of one deck, described unidirectional spraying nozzle 18 direction is downward along flue gas thrust-augmenting nozzle 15 axle center,
The annular space that the shell of described adjustable circumferential weld weight washer and inclined clapboard 14 are formed is eddy flow drying zone, some layers export-oriented dedusting dehydration spiral board 19 and the export-oriented dehydrating demisting spiral board 20 of some layers is provided with from bottom to top successively in described eddy flow drying zone, described export-oriented dehydrating demisting spiral board about 20 two ends are respectively equipped with two-way gap and rinse water fog spraying gun 21, and described export-oriented dedusting dehydration spiral board about 19 two ends are respectively equipped with two-wayly often opens water fog spraying gun 22;
The exit end of described spraying spray circumferential weld washing dehydration integrated tower 3 is positioned at below inclined clapboard 14;
Described horizontal cyclone water trap 4 comprises smoke-intake pipe road 23, smoke pipeline 24, water trap 25 and export-oriented dehydration spiral board 26, described water trap 25 is tube structure, the entrance in described smoke-intake pipe road 23 is connected with the exit end spraying circumferential weld washing dehydration integrated tower 3, the outlet in described smoke-intake pipe road 23 and the entrance of smoke pipeline 24 are positioned at water trap 25 and in same level, described water trap 25 lower end is provided with liquid collecting bucket 27, export-oriented dehydration spiral board 26 is provided with in described smoke-intake pipe road 23, described export-oriented dehydration spiral board 26 is positioned at the exit in smoke-intake pipe road 23, the front of described export-oriented dehydration spiral board 26 is provided with towards the unidirectional spray gun III28 of water trap 25,
The lower end of described air-water separation chamber 5, spraying spray circumferential weld washing dehydration integrated tower 3 and water trap 25 is respectively equipped with self-stip water lute drainer I29, self-stip water lute drainer II30 and self-stip water lute drainer III31, and the buck in described self-stip water lute drainer I29 directly enters overhead chute 33 by buck comb 32;
The described circular water treating system that is connected in series on the spot comprises hydrocyclone seperator of ash and water 34, described hydrocyclone seperator of ash and water 34 is connected with self-stip water lute drainer II30 and self-stip water lute drainer III31 by buck comb 32, the lower end outside of the aerosol mixed flow dedusting area of described spraying spray circumferential weld washing dehydration integrated tower 3 is connected with self-stip water lute drainer II30 by buck comb 32, the middle part of described hydrocyclone seperator of ash and water 34 is connected with pumping station system 36 by reuse water pump 35, pumping station system 36 is connected with the unidirectional or bidirection press water fog spraying gun II10 in transpiration cooling washing tower 2 by return water pipe 37, pumping station system 36 is connected with the upper end of hydrocyclone seperator of ash and water 34 by back flushing return water pipe 38, the lower end of hydrocyclone seperator of ash and water 34 is connected with overhead chute 33 by blow-off pipe 39.
further, described transpiration cooling washing tower 2 is connected with the end of gasification cooling flue 1 by overflow water seal or Non-Metallic Expansion Joints.
further, described flue 7 is positioned at the top of the inclined clapboard 14 of spraying spray circumferential weld washing dehydration integrated tower 3, when the exit end of flue 7 is between the inlet end and inclined clapboard 14 of flue gas thrust-augmenting nozzle 15, the entrance end of flue 7 and exit end are respectively with the exit end of upstriker eddy flow moisture film dust removing tube 6 with the entrance end that sprays circumferential weld washing dehydration integrated tower 3 of spraying is tangent is connected, when the exit end of flue 7 is positioned at above the inlet end of flue gas thrust-augmenting nozzle 15, the entrance end of flue 7 is connected with upstriker eddy flow moisture film dust removing tube 6 is tangent, the exit end of flue 7 is connected with the entrance end radial direction spraying circumferential weld washing dehydration integrated tower 3.
further, described adjustable circumferential weld weight washer comprises adjustable annular gap scrubber body 40, liftable heavily cuts or polish jade with an emery wheel 41, hydraulic efficiency servo-gear 42 and guide rod 43.
further, described nozzle rotates mixed flow producer 17 and comprises permanent joint 44, core bar 45, rotary nozzle 46 and fin 47, be connected in permanent joint 44 inner chamber in described core bar 45, core bar 45 lower end is through permanent joint 44, core bar 45 lower end cylindrical cover has crossover sub 48, crossover sub 48 lower end cylindrical socket rotary nozzle 46, being provided with sleeve 49 between core bar 45 and permanent joint 44 inwall is connected on permanent joint 44 inwall, core bar 45 upper end is provided with boss, ball I50 is provided with between boss lower surface and sleeve 49 upper end, groove is provided with between crossover sub 48 upper end and core bar 45 outer wall, ball II51 is provided with in groove, rotary nozzle 46 sidewall is arranged with two fins 47, on rotary nozzle 46 sidewall along Inner chamber sidewall tangent line be arranged with eccentric wire plug-flow spout 52 and between two fins 47, rotary nozzle 46 lower end is provided with water fog applicator 53.
further, the upper end of described hydrocyclone seperator of ash and water 34 is provided with upflow tube 54 and is connected with overhead chute 33, and the lower end of described hydrocyclone seperator of ash and water 34 is provided with mud discharging mouth, and described mud discharging mouth place is provided with spoil disposal transfer roller 55.
further, described unidirectional spray gun I11, unidirectional spray gun II16, unidirectional spray gun III28 are the combination of two-fluid spray gun or two-fluid spray gun and pressure water fog spraying gun.
further, described nozzle rotates mixed flow producer 17 and heavily cuts or polish jade with an emery wheel 41 conveying good antiscale property mixed liquid and flocculation agent online by the negative pressure of flue gas thrust-augmenting nozzle 15 to the aditus laryngis of adjustable circumferential weld weight washer and liftable, by the chelating of Scale inhibitors, the fouling that dissemination effectively prevents adjustable circumferential weld weight washer aditus laryngis and liftable heavily to cut or polish jade with an emery wheel 41 occurs, thus promote and stablize adjustable circumferential weld weight washer to the smart dedusting of flue gas and temperature reduction performance, the flocculation agent simultaneously added makes the buck entering hydrocyclone seperator of ash and water 34 flocculate, cohesion is accelerated in hydrocyclone seperator of ash and water 34, centrifugation, concentrate and sedimentation.
Further, described two-fluid spray gun 8 comprises two-fluid spray nozzle, water supply supply air line and water supply air feed control unit, and gas selects nitrogen or steam or other to have certain pressure rare gas element.
Further, described pressure water fog spraying gun comprises hollow or solid high-efficiency atomizing nozzle, water-supply line and water circulation unit.
Further, its water inlet pipe 13 of described liquid film overflow groove 12 tangentially enters overflow groove along liquid film overflow groove 12 circle, overflow groove is by the horizontal overflow weir overflow of profile of tooth, the tube wall in upstriker eddy flow moisture film dust removing tube 6 is made circumferentially to form the moisture film of the very thin constantly downward Uniform Flow of one deck, the wall stream that the pressure water smoke that unidirectional spray gun I11 sprays is formed under the effect of rotating centrifugal raising force and moisture film collect, the negative pressure that ash-laden gas is imported by spraying spray circumferential weld washing dehydration integrated tower 3 gas approach under blower negative pressure effect produces and rotates raising force, by centrifugal action get rid of moistening travel fatigue to inwall adhere to by moisture film, flow to lower end along inwall to drain.
Further, the wall stream formed under the effect of rotating centrifugal raising force in described upstriker eddy flow moisture film dust removing tube 6 can be the wall stream that formed under the effect of rotating centrifugal raising force of the pressure water smoke adopting separately pressure water fog spraying gun to spray or the moisture film wall stream of the constantly downward Uniform Flow adopting separately the horizontal overflow weir overflow of overflow groove profile of tooth to be formed.
Further, described hydrocyclone seperator of ash and water 34, be that vertebral body forms by the right cylinder of top hollow and bottom, the upper end inwall of hydrocyclone seperator of ash and water 34 is circumferentially provided with the arc shaped rotary stream guide path of inclination.
Further, the buck collected enters hydrocyclone seperator of ash and water 34 along buck comb 32 waterpower, its water-drop point is in the upper end of the arc shaped rotary stream guide path tilted, buck pours hydrocyclone seperator of ash and water 34 along the arc shaped rotary stream guide path rotary-cut of tilting under hydraulic action, producing tangential hydrocyclone drives the buck in hydrocyclone seperator of ash and water 34 rotate along barrel and produce centrifugal force, shown in nozzle rotate mixed flow producer 17 and heavily cut or polish jade with an emery wheel 41 conveying good antiscale property mixed liquid and flocculation agent online by the negative pressure of flue gas thrust-augmenting nozzle 15 to the aditus laryngis of adjustable circumferential weld weight washer and liftable, effectively the adjustable circumferential weld weight washer aditus laryngis of prevention and liftable heavily cut or polish jade with an emery wheel the fouling generation of 41 on the one hand, the buck making spraying spray circumferential weld washing dehydration integrated tower 3 enter hydrocyclone seperator of ash and water 34 on the spot on the other hand flocculates, under gravitational and centrifugal forces, that condenses is thicker, heavier particulate matter sedimentation also obtains concentrated and sedimentation in the vertebral body of hydrocyclone seperator of ash and water 34, concentrated plaster is by delivering to converter plaster comprehensive reutilization point by spoil disposal transfer roller 55, supernatant liquor is by reuse water pump 35, pumping station system 36 promotes and is sent in transpiration cooling washing tower 2 for unidirectional or bidirection press water fog spraying gun II10, and establish bypass for system wash-down water.
embodiment 1
The high-temperature flue gas that converter mouth place produces, after movable gas hood is collected, lower the temperature through gasification cooling flue 1 heat exchange, temperature drops to about 900 DEG C by 1450 DEG C-1600 DEG C at gasification cooling flue 1 end, first transpiration cooling dedusting area, transpiration cooling washing tower 2 middle and upper part is entered by the overflow water seal that is connected with gasification cooling flue 1 end or Non-Metallic Expansion Joints, some layers of two-fluid spray gun 8 or two-fluid spray gun 8 and combination that is unidirectional or bidirection press water fog spraying gun I9 is provided with in transpiration cooling dedusting area, high-temperature flue gas is lowered the temperature through some layers of two-fluid spray gun 8 or the two-fluid spray gun 8 high-density mist fire-fighting with the combination of unidirectional or bidirection press water fog spraying gun I9, heat absorption evaporation obtains quick extinguishing cooling.Flue gas continues the spraying spray washing district, bottom coming downwards to transpiration cooling washing tower 2, spraying is provided with the unidirectional or bidirection press water fog spraying gun II10 of some floor in spray washing district, the water smoke that unidirectional or bidirection press water fog spraying gun II10 ejects forms high-density water smoke, the particulate matter of growing up through the moistening cohesion of transpiration cooling in flue gas is made to pass through spraying, cohesion, spray and washing, gravitational coagulation sedimentation is realized in air-water separation chamber 5 bottom transpiration cooling washing tower 2, the buck that turbidity is higher and flue gas high efficiency separation, drain into self-stip water lute drainer I29 by waterpower.The exit gas temperature of the outlet on the downside of transpiration cooling washing tower 2 or air-water separation chamber 5 is cooled to 70 DEG C.
Flue gas after elementary thick dedusting enters upstriker eddy flow moisture film dust removing tube 6, the tangential negative pressure that ash-laden gas is imported by flue 7 under blower negative pressure effect produces and rotates raising force, the moistening soot dust granule got rid of to inwall by centrifugal action is adhered to by moisture film, flows to lower end drain along inwall.
Be provided with some layers of two-fluid spray gun in upstriker eddy flow moisture film dust removing tube 6 or combined by two kinds of spray guns of two-fluid spray gun and pressure water fog spraying gun, water smoke is injected along upstriker eddy flow moisture film dust removing tube 6, roll up the water smoke density in this region in flue gas, flue gas carries water smoke and revolves mixed, collision, condensation and cohesion, the dust-laden water smoke of cohesion forms wall stream under the effect of rotating centrifugal raising force, some layers of two-fluid spray gun or combined by two kinds of spray guns of two-fluid spray gun and pressure water fog spraying gun and inject the wall stream and the combined action of eddy flow moisture film that water smokes are formed, complete and compare the elementary thick dedusting of the usual transpiration cooling washing tower 2 more cyclone water-film of high strength and spray washing dedusting cooling, aqueous vapor sepn process, simultaneously due to the moisture film of the very thin constantly Uniform Flow downwards of upstriker eddy flow moisture film dust removing tube 6 inwall circumference uniform distribution one deck, upstriker eddy flow moisture film dust removing tube 6 inwall is made to be not easy fouling, effectively prevent from Incrustation of pipe from hindering damage to increase.
This process adopts cyclone type moisture film with flue gas eddy flow, spraying, interception, mixes and cohesion set dust-cleaning principle, flue gas and droplet mass-send raw rotary-cut and blending, water fog particle is at a high speed moistening and condense further by dust-laden particle in elastic collision and flue gas, eddy flow overcomes the resistance of air film and liquid film, the thick dust removal process of the system that enhances is to the impellent of smoke catching, improve the fractional efficiency of transpiration cooling, scrubbing dust collection unit, the exit gas temperature of upstriker eddy flow moisture film dust removing tube 6 is cooled to 68 DEG C.
Flue gas after purification is under system fan suction function, tangentially imported the aerosol mixed flow dedusting area, upper district of spraying spray circumferential weld washing dehydration integrated tower 3 by flue 7 by top, rotate in the circular channel that the tower wall of flue gas in aerosol mixed flow dedusting area, upper district and flue gas thrust-augmenting nozzle 15 surround for inner core and rise or decline, in aerosol mixed flow dedusting area, arrange that two kinds of spray guns of some layers of two-fluid spray gun or two-fluid spray gun and pressure water fog spraying gun combine up and down along spraying spray circumferential weld washing dehydration integrated tower 3 center, spray the high-density water smoke formed, ash-laden gas is after upstriker eddy flow moisture film dust removing tube 6 washing cooling and to carry soot dust granule thing be that the free water smoke of core enters aerosol mixed flow dedusting area, upper district.Saturated flue gas and pressure gas water smoke revolve mixed further, and water fog particle collides with band soot dust granule thing, condenses, and become wall sedimentation under the effect of eddy flow centrifugal force, completes multi-stage water gas and is separated.Buck is drained in self-stip water lute drainer II30 by inclined clapboard 14 low side buck comb 32 waterpower.
Part water smoke is descending along spraying spray circumferential weld washing dehydration integrated tower 3 center, sucks flue gas thrust-augmenting nozzle 15 and enter in adjustable collar seam weight washer under system fan suction function.
Through transpiration cooling washing tower 2, air-water separation chamber 5, upstriker eddy flow moisture film dust removing tube 6, spraying sprays the multi-stage serial connections such as the aerosol mixed flow dedusting area in district on circumferential weld washing dehydration integrated tower 3 and cools and dedusting dehydration, increase substantially transpiration cooling, the classification dedusting cooling efficiency of scrubbing dust collection unit, make the flue gas that enters in adjustable circumferential weld weight washer fully clean, flue-gas temperature is cooled to about 66 DEG C, flue gas thrust-augmenting nozzle 15 entrance dust conceltration reduces by 60% than the flue gas thrust-augmenting nozzle entrance dust conceltration of an existing converter flue gas OG system, the low 5-8 DEG C of flue gas, comparatively clean flue gas carries water smoke and enters under blower negative pressure effect in adjustable circumferential weld weight washer and carry out smart dedusting temperature-fall period.
Adjustable circumferential weld weight washer has the two kinds of functions regulating tolerance and purification cooled flue gas, according to converter mouth differential pressure semaphore request and coal-gas recovering or the technological operation requirement of diffusing, adopt hydraulic efficiency servo-gear 42, moved up and down by the scalable heavy stone roller 41 in actuating mechanism controls adjustable circumferential weld weight washer lower end again, the size of contact area is regulated coal gas to be carried out to the control of dust content of gas, namely controlling coal-gas recovering dust content is 40mg/Nm3, and discharge dust content is lower than 30mg/Nm3.
Flue gas after adjustable circumferential weld weight washer purification enters dehydrating demisting district from adjustable annular gap scrubber body 40 expansion section outlet, dehydrating demisting district comprises: adjustable annular gap scrubber body 40 expansion section exports the gravity gas-water separation district in downward space and adjustable annular gap scrubber body 40 outer wall and the space, circular channel spraying circumferential weld washing dehydration integrated tower 3 tower wall, inclined clapboard 14 surrounds, i.e. the eddy flow drying zone upwards along gravity gas-water separation district.
Some layers export-oriented dedusting dehydration spiral board 19 and the export-oriented dehydrating demisting spiral board 20 of some layers is respectively equipped with from bottom to top in eddy flow drying zone, export-oriented dedusting dehydration spiral board 19 has and two-wayly often opens water fog spraying gun 22, continuous bilateral cloth liquid, misty liquid droplets big area dispersion on export-oriented dedusting dehydration spiral board 19, form liquid film and liquid net, the physical processes such as strong stirring, remix, cohesion, high efficiency separation are formed with the gas-liquid rotated upwards, remove the fine soot dust granule in flue gas, the degree of depth realizing flue gas is clean, for water system for often to open; Export-oriented dehydrating demisting spiral board 20 has two-way gap and rinse water fog spraying gun 21, flue gas is clean through the some groups of export-oriented dehydrating demisting spiral board 20 dehydrating demisting degree of depth, complete gas, liquid is separated, isolated liquid stream cohesion forms moisture film and lets out under the narrow annular channel between export-oriented dehydrating demisting spiral board 20 external diameter and tower wall, self-stip water lute drainer II30 is drained into by buck comb 32 waterpower, supply water system to be that gap is rinsed, the exit gas temperature of spraying spray circumferential weld washing dehydration integrated tower 3 is cooled to 53-58 DEG C.
The exiting flue gas of spraying spray circumferential weld washing dehydration integrated tower 3 enters water trap 25 by smoke-intake pipe road 23 under blower negative pressure effect, export-oriented dehydration spiral board 26 is provided with in smoke-intake pipe road 23, export-oriented dehydration spiral board 26 is positioned at the exit in smoke-intake pipe road 23, the front of export-oriented dehydration spiral board 26 is provided with combines towards the two-fluid spray gun of water trap 25 or by two kinds of spray guns of two-fluid spray gun and pressure water fog spraying gun, let out under parting liquid in water trap 25 and washings enters in self-stip water lute drainer III31 at the bottom of tower, its effect carries out the clean process of the degree of depth to the exiting flue gas of spraying spray circumferential weld washing dehydration integrated tower 3 when meeting the lower dust content emission request of flue gas, guarantee that exhanst gas outlet dust content is stable lower than 25mg/Nm3, flue-gas temperature continues to be cooled to 50-55 DEG C.
Flue gas, after converter flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system cooling and dedusting, enters in fans entrance pipe network in blower negative pressure effect, boosts to three-way switch valve by centrifugal blower.When flue gas meets recovering condition, flue gas switches to water seal inverted valve by three-way switch valve, is sent to gas chamber, then by the booster fan of Gas Pressurization Station, gas pressing is sent to each user after water seal inverted valve and gas holder import water seal; When flue gas does not meet recovering condition, flue gas switches to diffusing chimney through by-pass valve, three-way switch valve, then by blowdown stack ignition bleeding.
The buck that spraying spray circumferential weld washing dehydration integrated tower 3 is collected drains into self-stip water lute drainer II30 by waterpower, by self-stip water lute drainer II30, buck waterpower is entered hydrocyclone seperator of ash and water 34 again, hydrocyclone seperator of ash and water 34 is that vertebral body forms by the right cylinder of top hollow and bottom, and the upper end inwall of hydrocyclone seperator of ash and water 34 is circumferentially provided with the arc shaped rotary stream guide path of inclination.
Further, the buck collected enters hydrocyclone seperator of ash and water 34 along buck comb 32 waterpower, its water-drop point is in the upper end of the arc shaped rotary stream guide path tilted, buck pours hydrocyclone seperator of ash and water 34 along the arc shaped rotary stream guide path rotary-cut of tilting under hydraulic action, producing tangential hydrocyclone drives the buck in hydrocyclone seperator of ash and water 34 rotate along barrel and produce centrifugal force, under gravitational and centrifugal forces, that condenses is thicker, heavier particulate matter sedimentation also obtains concentrated and sedimentation in the vertebral body of hydrocyclone seperator of ash and water 34, concentrated plaster is by delivering to converter plaster comprehensive reutilization point by spoil disposal transfer roller 55, supernatant liquor is by reuse water pump 35, pumping station system 36 promotes and is sent in transpiration cooling washing tower 2 for unidirectional or bidirection press water fog spraying gun II10, and establish bypass for system wash-down water.The plaster of hydrocyclone seperator of ash and water 34 and overflow water are concentrated respectively by blow-off pipe 39 and upflow tube 54 and are entered in overhead chute 33.
embodiment 2
The data that converter flue gas carries out gas purification recovery based on transpiration cooling less energy-consumption semidrying dust-removal system are as follows:
For 80T converter: the maximum tap of converter 95 tons, the average tap of converter 90 tons, oxygen blow duration 15min, oxygen supply intensity 18000Nm3/h, converter gas adopts and does not fire method process, coal-gas recovering, coefficient of excess air а=0.1.
Inlet flue gas amount: 24 × 104Am3/h;
Smoke inlet temperature: 850--1000 DEG C;
Inlet flue gas humidity: dry gas
Inlet flue gas pressure :-0.5kPa;
Raw flue gas dust content: 100 ~ 150g/Nm3;
Design system treatment quantity: 50000Nm3/h;
Exit gas temperature: 55 DEG C;
Exiting flue gas humidity: 100%;
Transpiration cooling washing tower+upstriker eddy flow moisture film dust removing tube+aerosol mixed flow dedusting area: overflow water and injection flow rate 260m3/h, the buck that wherein spraying spray circumferential weld washing dehydration integrated tower is collected is serially connected with spraying spray washing district, transpiration cooling washing tower bottom spray gun and uses, reuse service discharge 60t/h nitrogen amount 550Nm3/h on the spot, temperature out≤68 DEG C;
Spraying spray circumferential weld washing dehydration integrated tower annular gap scrubber: inlet flue gas amount 102000Am3/h (normally), injection flow rate 100t/h; Spraying spray circumferential weld washing dehydration integrated tower exit gas temperature≤55 DEG C; Dehydration tower exit gas temperature≤53 DEG C; Discharge dust content 24mg/Nm3(after gas cleaning and mark condition); Exiting flue gas pressure :-16kPa.
As above embodiment, if flue gas is diffused dust emission concentration stability contorting at below 40mg/m3, described in configuration this patent, converter flue gas can meet the demands based on transpiration cooling less energy-consumption semidrying dust-removal system.Combination unit system resistance simultaneously damages < 15.6KPa, the configurable more lower powered blower fan power of system.This patent adopts transpiration cooling at specific position and sprays compounding technology, improve system heat exchange efficiency and rate of cooling, the buck that spraying spray circumferential weld washing dehydration integrated tower is collected is serially connected with spraying spray washing district, transpiration cooling washing tower bottom spray gun and uses, direct minimizing de-dusting cycle process service discharge 20%, relatively traditional OG system dust removing water consumption reduces by 50%, and saving water and energy, it is with the obvious advantage to reduce discharging.
Above; be only the preferred embodiment of patent of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; pass through the understanding of-Ding professional technique and theory; the change that can expect easily or replacement, all should be encompassed within the scope of guarantor's expansion of the present invention, and the protection domain that therefore guarantor's expansion scope of the present invention defines with claim is as the criterion.
Claims (8)
1. converter flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, comprise the transpiration cooling washing tower be connected with gasification cooling flue, spraying spray circumferential weld washing dehydration integrated tower and the horizontal cyclone water trap be connected with fans entrance pipe network, the lower end of described transpiration cooling washing tower is provided with air-water separation chamber, the exit end of described air-water separation chamber is connected with the entrance end of upstriker eddy flow moisture film dust removing tube, the exit end of upstriker eddy flow moisture film dust removing tube is connected by flue with the entrance end spraying circumferential weld washing dehydration integrated tower, the exit end of described spraying spray circumferential weld washing dehydration integrated tower is connected with the inlet end of horizontal cyclone water trap, described spraying spray circumferential weld washing dehydration integrated tower is provided with one and is connected in series circular water treating system on the spot,
Described transpiration cooling washing tower is divided into upper and lower twoth district, upper district is transpiration cooling dedusting area, inferior segment is spraying spray washing district, be provided with some layers of two-fluid spray gun or two-fluid spray gun and combination that is unidirectional or bidirection press water fog spraying gun I in transpiration cooling dedusting area, in spraying spray washing district, be provided with the unidirectional or bidirection press water fog spraying gun II of some floor;
Described two-fluid spray gun comprises two-fluid spray nozzle, water supply supply air line and water supply air feed control unit, and gas selects nitrogen or steam or other to have certain pressure rare gas element;
Described unidirectional or bidirection press water fog spraying gun I and unidirectional or bidirection press water fog spraying gun II comprises hollow or solid high-efficiency atomizing nozzle, water-supply line and water circulation unit;
The downward unidirectional spray gun I in some layers of direction is provided with from top to bottom in described upstriker eddy flow moisture film dust removing tube, described upstriker eddy flow moisture film dust removing tube outer wall is provided with liquid film overflow groove, described liquid film overflow groove is positioned at below flue, and described liquid film overflow groove is provided with water inlet pipe;
Upper and lower twoth district are divided into by inclined clapboard in described spraying spray circumferential weld washing dehydration integrated tower, upper district is aerosol mixed flow dedusting area, inferior segment is combination region, top, described combination region is divided into dehydrating demisting district, lower part is gravity dewatering zone, described aerosol mixed flow dedusting area is connected by flue gas thrust-augmenting nozzle with between combination region, Nei Yanta center, described aerosol mixed flow dedusting area is provided with the downward unidirectional spray gun II in some layers of direction from top to bottom, be provided with adjustable circumferential weld weight washer in described combination region to be connected with flue gas thrust-augmenting nozzle lower end, the annular space that the shell of adjustable circumferential weld weight washer and inclined clapboard are formed is eddy flow drying zone, be provided with nozzle directly over described flue gas thrust-augmenting nozzle axle center and rotate mixed flow producer, described nozzle rotates between mixed flow producer and flue gas thrust-augmenting nozzle and is provided with the unidirectional spraying nozzle of one deck, described unidirectional spraying nozzle direction is downward along flue gas thrust-augmenting nozzle axle center,
The annular space that the shell of described adjustable circumferential weld weight washer and inclined clapboard are formed is eddy flow drying zone, some layers export-oriented dedusting dehydration spiral board and the export-oriented dehydrating demisting spiral board of some layers is provided with from bottom to top successively in described eddy flow drying zone, the described export-oriented upper and lower two ends of dehydrating demisting spiral board are respectively equipped with two-way gap and rinse water fog spraying gun, and the described export-oriented dedusting dehydration upper and lower two ends of spiral board are respectively equipped with two-wayly often opens water fog spraying gun;
The exit end of described spraying spray circumferential weld washing dehydration integrated tower is positioned at below inclined clapboard;
Described horizontal cyclone water trap comprises smoke-intake pipe road, smoke pipeline, water trap and export-oriented dehydration spiral board, described water trap is tube structure, the entrance in described smoke-intake pipe road is connected with the exit end spraying circumferential weld washing dehydration integrated tower, the outlet in described smoke-intake pipe road and the entrance of smoke pipeline are positioned at water trap and in same level, described water trap lower end is provided with liquid collecting bucket, export-oriented dehydration spiral board is provided with in described smoke-intake pipe road, described export-oriented dehydration spiral board is positioned at the exit in smoke-intake pipe road, the front of described export-oriented dehydration spiral board is provided with towards the unidirectional spray gun III of water trap,
The lower end of described air-water separation chamber, spraying spray circumferential weld washing dehydration integrated tower and water trap is respectively equipped with self-stip water lute drainer I, self-stip water lute drainer II and self-stip water lute drainer III, and the buck in described self-stip water lute drainer I directly enters overhead chute by buck comb;
The described circular water treating system that is connected in series on the spot comprises hydrocyclone seperator of ash and water, described hydrocyclone seperator of ash and water is connected with self-stip water lute drainer II and self-stip water lute drainer III by buck comb, the lower end outside of the aerosol mixed flow dedusting area of described spraying spray circumferential weld washing dehydration integrated tower is connected with self-stip water lute drainer II by buck comb, the middle part of described hydrocyclone seperator of ash and water is connected with pumping station system by reuse water pump, pumping station system is connected with the unidirectional or bidirection press water fog spraying gun II in transpiration cooling washing tower by return water pipe, pumping station system is connected with the upper end of hydrocyclone seperator of ash and water by back flushing return water pipe, the lower end of hydrocyclone seperator of ash and water is connected with overhead chute by blow-off pipe.
2. a kind of converter according to claim 1 flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, described transpiration cooling washing tower is connected with the end of gasification cooling flue by overflow water seal or Non-Metallic Expansion Joints.
3. a kind of converter according to claim 1 flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, described flue is positioned at the top of the inclined clapboard of spraying spray circumferential weld washing dehydration integrated tower, when the exit end of flue is between the inlet end and inclined clapboard of flue gas thrust-augmenting nozzle, the entrance end of flue and exit end are respectively with the exit end of upstriker eddy flow moisture film dust removing tube with the entrance end that sprays circumferential weld washing dehydration integrated tower of spraying is tangent is connected, when the exit end of flue is positioned at above the inlet end of flue gas thrust-augmenting nozzle, the entrance end of flue is connected with upstriker eddy flow moisture film dust removing tube is tangent, the exit end of flue is connected with the entrance end radial direction spraying circumferential weld washing dehydration integrated tower.
4. a kind of converter according to claim 1 flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, described adjustable circumferential weld weight washer comprises adjustable annular gap scrubber body, liftable is heavily cut or polish jade with an emery wheel, hydraulic efficiency servo-gear and guide rod.
5. a kind of converter according to claim 1 flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, described nozzle rotates mixed flow producer and comprises permanent joint, core bar, rotary nozzle and fin, be connected in permanent joint inner chamber in described core bar, core bar lower end is through permanent joint, core bar lower end cylindrical cover has crossover sub, crossover sub lower end cylindrical socket rotary nozzle, being provided with sleeve between core bar and permanent joint inwall is connected on permanent joint inwall, core bar upper end is provided with boss, ball I is provided with between boss lower surface and sleeve upper end, groove is provided with between crossover sub upper end and core bar outer wall, ball II is provided with in groove, rotary nozzle sidewall is arranged with two fins, on rotary nozzle sidewall along Inner chamber sidewall tangent line be arranged with eccentric wire plug-flow spout and between two fins, rotary nozzle lower end is provided with water fog applicator.
6. a kind of converter according to claim 1 flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, the upper end of described hydrocyclone seperator of ash and water is provided with upflow tube and is connected with overhead chute, the lower end of described hydrocyclone seperator of ash and water is provided with mud discharging mouth, and described mud discharging mouth place is provided with spoil disposal transfer roller.
7. a kind of converter according to claim 1 flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, described unidirectional spray gun I, unidirectional spray gun II, unidirectional spray gun III are the combination of two-fluid spray gun or two-fluid spray gun and pressure water fog spraying gun.
8. a kind of converter according to claim 1 flue gas is based on transpiration-cooled less energy-consumption semidrying dust-removal system, it is characterized in that, described nozzle rotates mixed flow producer and heavily cuts or polish jade with an emery wheel online conveying good antiscale property mixed liquid and flocculation agent by the negative pressure of flue gas thrust-augmenting nozzle to the aditus laryngis of adjustable circumferential weld weight washer and liftable, by the chelating of Scale inhibitors, the fouling that dissemination effectively prevents adjustable circumferential weld weight washer aditus laryngis and liftable heavily to cut or polish jade with an emery wheel occurs, thus promote and stablize adjustable circumferential weld weight washer to the smart dedusting of flue gas and temperature reduction performance, the flocculation agent simultaneously added makes the buck entering hydrocyclone seperator of ash and water flocculate, cohesion is accelerated in hydrocyclone seperator of ash and water, centrifugation, concentrate and sedimentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787768.2A CN105238904B (en) | 2015-09-04 | 2015-11-17 | A kind of flue gas of converter is based on transpiration-cooled low energy consumption semidry method dust pelletizing system |
Applications Claiming Priority (3)
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|---|---|---|---|
| CN201520676685 | 2015-09-04 | ||
| CN2015206766851 | 2015-09-04 | ||
| CN201510787768.2A CN105238904B (en) | 2015-09-04 | 2015-11-17 | A kind of flue gas of converter is based on transpiration-cooled low energy consumption semidry method dust pelletizing system |
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| CN105238904A true CN105238904A (en) | 2016-01-13 |
| CN105238904B CN105238904B (en) | 2018-06-26 |
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|---|---|---|---|
| CN201520914126.XU Withdrawn - After Issue CN205275632U (en) | 2015-09-04 | 2015-11-17 | Primary smoke of converter is based on evaporation cooling's low energy consumption semidry method dust pelletizing system |
| CN201510787768.2A Active CN105238904B (en) | 2015-09-04 | 2015-11-17 | A kind of flue gas of converter is based on transpiration-cooled low energy consumption semidry method dust pelletizing system |
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| CN201520914126.XU Withdrawn - After Issue CN205275632U (en) | 2015-09-04 | 2015-11-17 | Primary smoke of converter is based on evaporation cooling's low energy consumption semidry method dust pelletizing system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512667A (en) * | 2016-12-31 | 2017-03-22 | 江苏博际环境工程科技有限公司 | Wet-type variable-flow flue gas purification and downward wet-type static electricity combined ultralow flue gas emission device |
| CN106731403A (en) * | 2016-12-31 | 2017-05-31 | 上海宝钢节能环保技术有限公司 | The flue gas high-efficiency low energy consumption dedusting of metallurgical slag processing procedure and device for deep cleaning |
| CN106731402A (en) * | 2016-12-31 | 2017-05-31 | 江苏博际环境工程科技有限公司 | Metallurgical Slag treatment flue gas wet type unsteady flow dedusting and wet electrostatic advanced purification system |
| CN107413149A (en) * | 2017-06-26 | 2017-12-01 | 哥乐巴环保科技(上海)有限公司 | A kind of MDF dries the modified technique and processing system of tail gas biochemical processing method |
| CN108671687A (en) * | 2018-07-11 | 2018-10-19 | 北京首钢国际工程技术有限公司 | A kind of dry-method dust-removal device and its technique for the aqueous flue dust of slag |
| KR102082112B1 (en) * | 2018-10-18 | 2020-02-27 | 주식회사 포스코건설 | Apparatus for disposing an exhaust gas in a converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205275632U (en) * | 2015-09-04 | 2016-06-01 | 江苏博际喷雾系统股份有限公司 | Primary smoke of converter is based on evaporation cooling's low energy consumption semidry method dust pelletizing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106512667A (en) * | 2016-12-31 | 2017-03-22 | 江苏博际环境工程科技有限公司 | Wet-type variable-flow flue gas purification and downward wet-type static electricity combined ultralow flue gas emission device |
| CN106731403A (en) * | 2016-12-31 | 2017-05-31 | 上海宝钢节能环保技术有限公司 | The flue gas high-efficiency low energy consumption dedusting of metallurgical slag processing procedure and device for deep cleaning |
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| CN107413149A (en) * | 2017-06-26 | 2017-12-01 | 哥乐巴环保科技(上海)有限公司 | A kind of MDF dries the modified technique and processing system of tail gas biochemical processing method |
| CN108671687A (en) * | 2018-07-11 | 2018-10-19 | 北京首钢国际工程技术有限公司 | A kind of dry-method dust-removal device and its technique for the aqueous flue dust of slag |
| CN108671687B (en) * | 2018-07-11 | 2023-07-04 | 北京首钢国际工程技术有限公司 | Dry dust removing device and process for steel slag water-containing smoke dust |
| KR102082112B1 (en) * | 2018-10-18 | 2020-02-27 | 주식회사 포스코건설 | Apparatus for disposing an exhaust gas in a converter |
Also Published As
| Publication number | Publication date |
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| CN205275632U (en) | 2016-06-01 |
| CN105238904B (en) | 2018-06-26 |
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Address after: 225267 Yangzhou Province, Jiangdu District fairy town, the industrial park, the three ring road, No. 2, No. 388 North Road Applicant after: JIANGSU BOJI SPRAYING SYSTEMS HOLDING Co.,Ltd. Address before: 225267 Yangzhou Province, Jiangdu District fairy town, the industrial park, the three ring road, No. 2, No. 388 North Road Applicant before: JIANGSU BOJI SPRAYING SYSTEMS CO.,LTD. |
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Denomination of invention: A Low Energy Consumption Semi Dry Dust Removal System Based on Evaporative Cooling for Converter Primary Flue Gas Effective date of registration: 20231023 Granted publication date: 20180626 Pledgee: Postal Savings Bank of China Co.,Ltd. Yangzhou Jiangdu District Sub branch Pledgor: JIANGSU BOJI SPRAYING SYSTEMS HOLDING Co.,Ltd. Registration number: Y2023980061764 |