CN203625395U - Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system - Google Patents
Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system Download PDFInfo
- Publication number
- CN203625395U CN203625395U CN201320800276.9U CN201320800276U CN203625395U CN 203625395 U CN203625395 U CN 203625395U CN 201320800276 U CN201320800276 U CN 201320800276U CN 203625395 U CN203625395 U CN 203625395U
- Authority
- CN
- China
- Prior art keywords
- storehouse
- water
- granulation
- blast furnace
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
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
- Y02P10/20—Recycling
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model discloses a liquid-state blast furnace slag granulation and multi-roller waste heat recovery system comprising a first-stage vaporization roller granulation bin, a second-stage vaporization roller storage bin, a third-stage roller cooler and a waste heat recovery system, wherein a feeding hole of the first-stage vaporization roller granulation bin is provided with a liquid slag chute and a granulator; the first-stage vaporization roller granulation bin, the second-stage vaporization roller storage bin and the third-stage roller cooler are connected in series; the first-stage vaporization roller granulation bin, the second-stage vaporization roller storage bin and the third-stage roller cooler are respectively provided with a steam/water inlet/outlet; the waste heat recovery system comprises a feed water pump, a deaerator and a steam pocket which are communicated through a water pipeline. The liquid-state blast furnace slag granulation and multi-roller waste heat recovery system can be used for producing high-grade saturated steam through the gradient utilization of waste heat of blast furnace slag and improving the utilization grade of waste slag through the rapid cooling of solid slag and can continuously operate without influences from the resting period of a blast furnace in the whole process.
Description
Technical field
The utility model relates to the treatment system of Metallurgy Energy Saving environmental technology field, particularly a kind of high-temperature liquid furnace slag.
Background technology
Blast furnace slag is the byproduct of ironmaking, and the outflow temperature of blast furnace slag is 1400 ℃ of left and right, and blast furnace slag per ton institute heat content reaches 1.8GJ, approximately amounts to 64kg standard coal institute heat content.Meanwhile, among the final waste residue of discharging of blast furnace slag treatment process, contain very useful active ingredient, although because its activeconstituents of difference difference to some extent for the treatment of process, all can be used as build the road, the raw material of the industry such as cement is applied.
The main method of traditional processing blast furnace slag is wet method water quenching, the method technique is simple, and can reclaim waste residue byproduct, but can not utilize waste heat, and consume a large amount of water coolants, and produce obnoxious flavour, therefore current technology is mainly the alternative techniques of development water quenching, is also dry method waste heat reclaiming process.Various dry granulation technique can be saved a large amount of water resourcess and be avoided wet method to generate sulfide obnoxious flavour, and representative dry process is mainly wind crush method and revolving cup method.Wherein: 1) wind crush method is to adopt pressurized air or nitrogen injection melting slag liquid to form solid impurity particle, 2) revolving cup rule is to utilize the revolving cup of high speed rotating or rotating disk that the slag liquid being poured on revolving cup (dish) is carried out to granulation.For many years, be that wind crush method revolving cup method all stops at type approval test, and focus on more waste heat recovery, and the pair of ignorance residue product adds value utilization, or, although also can realize residue product utilization, but abandoned waste heat value.On the whole, the technical two incomes that simultaneously do not realize both, the two becomes the contradictory factor conditioning each other more.
Summary of the invention
The technical problem that the utility model solves is to provide a kind of blast furnace slag processing system that can reclaim high-temperature liquid state blast furnace slag waste heat simultaneously and realize the utilization of waste residue higher-grade.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
Liquid blast furnace slag granulation and multiple-roll residual neat recovering system, comprise one-level vaporization cylinder granulation storehouse, secondary vaporization cylinder storage silo, three grades of cylinder water coolers and residual neat recovering system, the opening for feed in described one-level vaporization cylinder granulation storehouse is provided with the liquid slag chute for delivery of blast furnace slag being communicated with tap cinder mouth and the pelletizer that blast furnace slag is carried out to broken granulation, the discharge port in one-level vaporization cylinder granulation storehouse is communicated with the opening for feed of secondary vaporization cylinder storage silo by tremie pipe, the discharge port of secondary vaporization cylinder storage silo is communicated with the opening for feed of three grades of cylinder water coolers by tremie pipe, the discharge port of three grades of cylinder water coolers is communicated with slag particle collection device by tremie pipe, on described one-level vaporization cylinder granulation storehouse, secondary vaporization cylinder storage silo and three grades of cylinder water coolers, be provided with carbonated drink import and export, described residual neat recovering system comprises the service pump being communicated with water source by water pipe, the water side of service pump is communicated with deoxygenator and drum by water pipe, flows to drum successively from the water coolant of deoxygenator output behind three grades of cylinder water coolers, secondary vaporization cylinder storage silo and one-level vaporization cylinder granulation storehouse.
Improvement of the present utility model is: on described one-level vaporization cylinder granulation storehouse, secondary vaporization cylinder storage silo and three grades of cylinder water coolers, be also respectively arranged with slag wool outlet, slag wool outlet is communicated with the cotton system of exhausting collection; The cotton system of described exhausting collection comprises the cotton device of catching being communicated with the slag wool outlet on one-level vaporization cylinder granulation storehouse, secondary vaporization cylinder storage silo and three grades of cylinder water coolers respectively by air draft pipe, catches cotton device and is communicated with induced draft fan by air draft pipe.
Improvement of the present utility model is: described one-level vaporization cylinder granulation storehouse, secondary vaporization cylinder storage silo and three grades of cylinder water coolers are the tube structure that is supported and laterally placed by bracing frame, the wall of cylindrical shell adopts membrane type close arranging pipe arranged in series to form, and cylindrical shell drives axle rotation centered by cylindrical shell central axis by being arranged on the driving mechanism of warehouse outside; The turnover water end (W.E.) of described membrane type close arranging pipe is communicated with carbonated drink import and export.
Improvement of the present utility model is: between described water source and service pump, on water pipe, be provided with softening water tank, on every section of water pipe in described residual neat recovering system, a water valve be set respectively.
Improvement of the present utility model is: described in catch on every section of air draft pipe between cotton device and induced draft fan an air-valve be set respectively.
The concrete structure in one-level vaporization described in the utility model cylinder granulation storehouse is: described one-level vaporization cylinder granulation storehouse comprises the preposition storehouse being interconnected, middle storehouse and rearmounted storehouse; Described liquid slag chute and pelletizer are all arranged on the opening for feed place in preposition storehouse, the front end in the Yu Zhong storehouse, rear end in preposition storehouse adopts mechanical seal to be connected, the rear end in middle storehouse adopts mechanical seal to be connected with the front end in rearmounted storehouse, and carbonated drink import and export is arranged on the end center in rearmounted storehouse; Described middle storehouse is the rotatable tube structure that adopts membrane type close arranging pipe arranged in series to form, and is provided with spiral conveying cooling tube in the inner chamber of middle storehouse, and the turnover water end (W.E.) of membrane type close arranging pipe is imported and exported by pipeline communication carbonated drink respectively.
The improvement in one-level vaporization described in the utility model cylinder granulation storehouse is: the posterior segment of described middle storehouse inner chamber is also laid with material curtain abrasionproof and raises plate.
The improvement in one-level vaporization described in the utility model cylinder granulation storehouse is: the cross section in described middle storehouse is circle or Polygons, and in cartridge type, the longitudinal section in storehouse is the little olive shape broad in the middle in rectangle, two or one large one small pyramidal structure.
The improvement in one-level vaporization described in the utility model cylinder granulation storehouse is: the top in described preposition storehouse and the top in rearmounted storehouse are respectively arranged with the quick coagulator for injecting device towards preposition storehouse inner chamber and middle storehouse inner chamber.
Owing to having adopted above technical scheme, the obtained technical progress of the utility model is as follows.
The utility model only needs a heat exchange can produce steam, be different from the traditional technology that warm sludge converts hot blast, hot blast to and be converted to steam, the utility model adopts multiple rollers to carry out cooling to blast furnace slag, realize the cascade utilization of slag waste heat, intermitting heating is converted to continuous heat supply simultaneously, has improved waste heat recovery efficiency.Water-cooled film type barrel can direct production High Temperature High Pressure hot water, only needs flash distillation just can, for steam user, improve the grade of UTILIZATION OF VESIDUAL HEAT IN.The design of three grades of cylinders, around each important temperature interval of blast furnace slag active ingredient chemically changed, take fast by 1200 ℃ of tricalcium silicate decomposition points, 700 ℃ of left and right β phase Dicalcium Phosphate (Feed Grade) decomposition points as object, retained to greatest extent the active ingredient of blast furnace slag, improved the grade of utilizing of waste residue.
The design of the utility model multiple rollers, is convenient to regulate the quantity of slag and the retention time of each section of buffer memory, can effectively alleviate contradiction between the intermittent and UTILIZATION OF VESIDUAL HEAT IN continuity of operation of blast furnace.The cooling airtight of high-temperature liquid state slag carries out, and directly do not contact with water, without explosion hazard and personal injury hidden danger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation in one-level vaporization described in the utility model cylinder granulation storehouse.
Wherein: 1, air compressor, 2, pelletizer, 3, liquid slag chute, 41-43, catch cotton device, 5, one-level vaporization cylinder granulation storehouse, 51, preposition storehouse, 52, middle storehouse, 53, rearmounted storehouse, 54, slag wool outlet, 55, carbonated drink is imported and exported, 56, barrel, 57, material curtain abrasionproof is raised plate, 58, spiral conveying cooling tube, 59, quick coagulator for injecting device, 6, drum, 7, steam user, 81-83, tremie pipe, 9, secondary vaporization cylinder storage silo, 10, three grades of cylinder water coolers, 11, deoxygenator, 12, softening water tank, 13, service pump, 14, induced draft fan, 15, aiutage, 161-164, air-valve, 171-175 water valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
A kind of liquid blast furnace slag granulation and multiple-roll residual neat recovering system, adopt high pressure gas to carry out fragmentation to blast furnace slag, and adopt plural serial stage roll form to carry out step cooling and waste heat recovery to slag particle.
The structure of the present embodiment as shown in Figure 1, comprises three grades of series connection cylinders, the cotton system of exhausting collection and residual neat recovering system, and wherein three grades of series connection cylinders comprise one-level vaporization cylinder granulation storehouse 5, secondary vaporization cylinder storage silo 9 and three grades of cylinder water coolers 10; The discharge port in one-level vaporization cylinder granulation storehouse 5 is communicated with the opening for feed of secondary vaporization cylinder storage silo 9 by tremie pipe; the discharge port of secondary vaporization cylinder storage silo 9 is communicated with the opening for feed of three grades of cylinder water coolers 10 by tremie pipe, and the discharge port of three grades of cylinder water coolers 10 is communicated with slag particle collection device by tremie pipe.
Described one-level vaporization cylinder granulation storehouse 5 is for collecting the high-temperature liquid state slag particle of 1400 ℃ of left and right of pelletizer ejection, and carries out first step cooling.Its structure as shown in Figure 2, comprises the preposition storehouse 51, middle storehouse 52 and the rearmounted storehouse 53 that are interconnected.The front end in preposition storehouse 51 is provided with opening for feed, and the bottom in rearmounted storehouse 53 is provided with discharge port, and the front end in the Yu Zhong storehouse, rear end 52 in preposition storehouse 51 adopts mechanical seal to be connected, and the rear end in middle storehouse adopts mechanical seal to be connected with the front end in rearmounted storehouse.Middle storehouse is rotatable equipment, and preposition storehouse and rearmounted storehouse are not rotatable.
The front end in preposition storehouse 51 is provided with liquid slag chute 3 and pelletizer 2, and the top in preposition storehouse is provided with slag wool outlet 54, and the bottom in preposition storehouse is provided with slag-drip opening.Liquid slag chute 3 is communicated with the opening for feed in tap cinder mouth and preposition storehouse, and for the blast furnace slag of tap cinder mouth output is sent into preposition storehouse, preposition storehouse is also communicated with atmosphere by opening for feed simultaneously.
The input terminus of pelletizer 2, by pipeline communication air compressor 1, is provided with air-valve 161 on this pipeline, regulate high speed winds flow.The blast furnace slag that pelletizer 2 adopts high-speed gas liquid towards slag chute to send into preposition storehouse carries out broken granulation.The setting of bottom, preposition storehouse slag-drip opening, is mainly used in discharging the blast furnace slag dropping in preposition storehouse, is also referred to as accident slag-drip opening.
In cartridge type, in the inner chamber in storehouse, be provided with spiral conveying cooling tube 58, for carry slag charge to rearmounted storehouse in the turning course of storehouse, play certain cooling heat transferring effect simultaneously.The posterior segment of middle storehouse inner chamber is also laid with material curtain abrasionproof and raises plate 57, and the plate hight that material curtain abrasionproof is raised plate 57 is higher than middle silo wall.The solid slag particle shape of kicking up unsteady when the effect that material curtain abrasionproof is raised plate is conveying becomes material curtain, both can control the flying distance of liquid slag, avoided again larger liquid slag particle or part semi liquid state slag particle to produce sticky wall effect, and by local liquid state high calorie indirect branch to solid slag; In addition, also can play interception function to the solid-state slag particle of injecting at a high speed, in can protecting, the bulkhead heat transfer tube of storehouse back segment is avoided directly washing away, and plays the effect of enhanced heat exchange.
The end center in rearmounted storehouse is provided with carbonated drink import and export, and the front end that carbonated drink is imported and exported is communicated with membrane type close arranging pipe, and the rear end that carbonated drink is imported and exported is communicated with residual neat recovering system by pipeline.The end bottom in rearmounted storehouse is provided with discharge port, for discharging the solid-state slag particle after cooling and pulverizing.The top in rearmounted storehouse is provided with slag wool outlet.
The top in preposition storehouse and the top in rearmounted storehouse are respectively arranged with quick coagulator for injecting device 59, the quick coagulator for injecting device in preposition storehouse arranges towards middle part, preposition storehouse, the quick coagulator for injecting device in rearmounted storehouse arranges towards middle storehouse inner chamber, be used for to He Zhong storehouse, preposition storehouse jeting surface peptizer, micro mist release agent or related fluid body medium, and can be according to the quality of slag particle, regulate the flow of accelerating chemicals, to improve the availability of slag ingredient.
Secondary vaporization cylinder storage silo, for slag temperature is down to 350 ℃ of left and right from 900 ℃ of left and right, adopts F.F. to go out slowly mode, and vaporize intermittent slag input that cylinder granulation storehouse transports of one-level is changed into and slags tap continuously material and complete secondary heat exchange.Secondary vaporization cylinder storage silo structure is identical with the middle chamber structure in one-level vaporization cylinder granulation storehouse, is rotatable equipment.The middle part, rear end of secondary vaporization cylinder storage silo is provided with carbonated drink import and export, and upper rear end is provided with slag wool outlet.
Three grades of vaporization cylinder water coolers, the grain slag of sending here for cylinder storage silo that secondary is vaporized is down in 200 ℃ by 350 ℃, adopts the continuous operation mode of uniform feeding, uniform discharge.The middle part, rear end of three grades of vaporization cylinder water coolers is provided with carbonated drink import and export, and upper rear end is provided with slag wool outlet.
Described residual neat recovering system comprises softening water tank 12, service pump 13, deoxygenator 11 and drum 6, the water-in of softening water tank 12 is communicated with water source by water pipe, the water outlet of softening water tank 12 is communicated with the water-in of service pump 13 by water pipe, the water outlet of service pump 13 is communicated with the water-in of deoxygenator 11 by water pipe, the water outlet of deoxygenator 11 is communicated with the carbonated drink import of three grades of cylinder water coolers 10 by water pipe, the carbonated drink outlet of three grades of cylinder water coolers 10 is communicated with the carbonated drink import of secondary vaporization cylinder storage silo 9 by water pipe, the carbonated drink outlet of secondary vaporization cylinder storage silo 9 is communicated with the carbonated drink import in one-level vaporization cylinder granulation storehouse 5 by water pipe, the carbonated drink outlet in one-level vaporization cylinder granulation storehouse 5 is communicated with the water-in of drum 6 by water pipe, the water outlet of drum 6 is communicated with steam user 7 by pipeline.
On water pipe between above-mentioned service pump 13 and deoxygenator 11, be provided with water valve 171; on water pipe between deoxygenator 11 and three grades of cylinder water coolers 10, be provided with water valve 172; on water pipe three grades of cylinder water coolers 10 and that secondary is vaporized between cylinder storage silo 9, be provided with water valve 173; on water pipe between secondary vaporization cylinder storage silo 9 and one-level vaporization cylinder granulation storehouse 5, be provided with water valve 174, on the water pipe between one-level vaporization cylinder granulation storehouse 5 and drum 6, be provided with water valve 175.The discharge that is provided for controlling respectively corresponding water pipe of water valve.
The cotton system of exhausting collection easily produces the collection problem of slag wool in shattering process for solving low basicity blast furnace slag, thereby by slag particle is separated to the slag wool mixing in slagging tap with the middle-chain exhausting of carrying in flight, and slag wool is tackled, collected and compresses packing.The cotton system of exhausting collection is configured mainly for blast furnace slag and low-basicity slag treatment system similarly, and centering high alkalinity slag, what all granulatings produced without slag wool all can configure.
The cotton system of exhausting collection comprises catches cotton device, induced draft fan 14 and aiutage 15.Catch cotton device and arrange altogether three, arrange for the slag wool outlet on one-level vaporization cylinder granulation storehouse 5, secondary vaporization cylinder storage silo 9 and three grades of cylinder water coolers 10 respectively.Wherein, the slag wool outlet in one-level vaporization 5 preposition storehouses, cylinder granulation storehouse and the slag wool outlet in rearmounted storehouse are communicated with and are caught cotton device 41 by air draft pipe; the slag wool outlet of secondary vaporization cylinder storage silo 9 is communicated with and is caught cotton device 42 by air draft pipe; slag wool outlet on three grades of cylinder water coolers 10 is communicated with and is caught cotton device 43 by air draft pipe; catch cotton device for three and be communicated with induced draft fan 14 by air draft pipe respectively, induced draft fan is communicated with aiutage 15 by air draft pipe.
On above-mentioned three three air draft pipes of catching between cotton device and induced draft fan 14, an air-valve 162 ~ 164 is set respectively, for controlling exhausting amount.
Working process of the present utility model is as described below:
In the course of the work, the middle storehouse in one-level vaporization cylinder granulation storehouse 5, secondary vaporization cylinder storage silo 9 and three grades of cylinder water coolers 10 rotate around central axis respectively the utility model under the driving of respective drive mechanism.
High-temperature liquid state blast furnace slag is after liquid slag chute is sent into the preposition storehouse in one-level vaporization cylinder granulation storehouse 5, air compressor 1 provides air (can also be nitrogen or steam etc.) more than about 0.6Mpa pressurized gas to pelletizer, within the solid-state or semi-solid state particle that high-temperature liquid state blast furnace slag is granulated into about mean diameter 2mm under the winding-up of pelletizer becomes scattered about middle storehouse, liquid and semi liquid state slag particle is encountered soon on the cooling barrel 56 of heat exchange in middle storehouse and is condensed and peel off rapidly in middle storehouse, part slag particle is directly raised with material curtain abrasionproof material curtain that plate 12 forms and is bumped against and fall, and in turning motion, complete and the heat exchange of barrel 56, complete the quick process of cooling of temperature from ℃ left and right, 1400 ℃ of left and right to 900, subsequently, slag particle is sent into rearmounted storehouse under the effect of spiral conveying cooling tube, the slag particle in rearmounted storehouse enters secondary vaporization cylinder storage silo through tremie pipe 81 and carries out the cooling of subordinate phase, and secondary vaporization cylinder storage silo adopts the slag particle that the conventional type of cooling is 900 ℃ of left and right by temperature to cool to 350 ℃ of left and right, enter three grades of cylinder water coolers and carry out the cooling heat transferring of phase III finally by tremie pipe 82, heat exchange to 200 ℃ following discharge, the cold slag of output can be used as cement adding raw material.
High-temperature liquid state blast furnace slag is in granulating; the slag heat that adopts pump circulation to absorb in cylinder by hot water in the membrane wall pipe of one-level vaporization cylinder granulation storehouse, secondary vaporization cylinder storage silo and three grades of cylinder water coolers produces saturation steam, more than pressure can reach 1.0Mpa.
The slag wool producing in granulating completes to collect and separates by catching cotton device under the effect of induced draft fan, discharges (determining whether add fly-ash separator according to dust-laden situation) from induced draft fan hot blast out finally by induced draft fan 14 by aiutage 15.
In synchronous granulating; the cold water of exporting from water source is after softening water tank is softening; under the acting of service pump 13, enter deoxygenator 11 and form deaerated water; deaerated water enters successively three grades of cylinder water coolers 10, secondary vaporization cylinder storage silo 9 and one-level vaporization cylinder granulation storehouse 5 and carries out heat exchange intensification; the High Temperature High Pressure hot water finally generating enters drum 6, flashes to saturation steam for steam user 7.
Take the engineering design of certain test subject as example, the processing requirement of cylinders at different levels is described in detail below:
1, the processing requirement in one-level vaporization cylinder granulation storehouse 5
One-level vaporization cylinder granulation storehouse 5 belongs to high temperature section, between whole cooling area, drops to 900 ℃ from 1400 ℃.Blast furnace slag with small droplets form from the broken granulation in preposition storehouse sprays in storehouse; preposition storehouse is semiclosed; the free flight distance approximately 8～10m of slag particle in middle storehouse; by the feeding of spiral conveying cooling tube; the material curtain abrasionproof of postmedian is raised plate and is arranged as required and can form material curtain; to control flying distance and to realize the antiseized function of abrasionproof
Each treatment cycle is 1.5h, moves in circles, and 16 cycles of every day.Wherein, slag input only continues 30min, slag flow 1.2t/min, and slag enters in middle storehouse with molten state small droplets (solidifying rear 1-5mm) form; Last slag notch is discharged slag particle.In the whole cycle, adopt slag input, the mode of slagging tap continuously of being interrupted; Slag inlet temperature is 1400 ℃ of left and right, approximately 900 ℃ of tapping temperatures; The flow of slagging tap is 0.4t/min; Cooling water flow is 12.8t/h, and cooling water inlet temperature is 220 ℃ (steam water interfaces), and cooling water outlet temperature is 220 ℃ (steam water interfaces), and water coolant operating pressure is 2.5Mpa (G), and steam is interrupted generation, drum continuous wave output steam.Steam water interface is saturation water and saturation steam composition, and importing and exporting steam temperature identical is all temperature of saturation, but therefore enthalpy difference can realize heat exchange, because steam-water mixing ratio difference and evaporation of water latent heat numerical value are much higher than saturation water enthalpy.
2, the processing requirement of secondary vaporization cylinder storage silo
Secondary vaporization cylinder storage silo belongs to middle-temperature section, between whole cooling area, drops to 350 ℃ from 900 ℃, and this equipment is conventional continuously feeding mode, but should take into full account the mass transport characteristic under the materialization heat transfer characteristic of blast furnace slag, wearing and tearing and rolling condition to equipment.
In secondary vaporization cylinder storage silo working process, adopt F.F. to go out slowly mode; Slag treatment capacity is 24t/h, and slag inlet temperature is 900 ℃, and slag temperature out is 350 ℃; Cooling water flow is 12.8t/h; Cooling water inlet temperature is 150 ℃, and cooling water outlet temperature is 220 ℃ (steam water interfaces), and water coolant operating pressure is 2.5Mpa (G).
3, the processing requirement of three grades of vaporization cylinder water coolers
Three grades of vaporization cylinder water coolers belong to low-temperature zone, between whole cooling area, drop to 250 ℃ from 350 ℃, and this equipment is conventional continuously feeding mode, but should take into full account the mass transport characteristic under the materialization heat transfer characteristic of blast furnace slag, wearing and tearing and rolling condition to equipment.
In three grades of vaporization cylinder water cooler working process, adopt the continuous operation mode of uniform feeding, uniform discharge; Slag treatment capacity is 24t/h, and slag inlet temperature is 350 ℃, and slag temperature out is 250 ℃; Cooling water flow is 12.8t/h; Cooling water inlet temperature is 104 ℃, and cooling water outlet temperature is 150 ℃, and water coolant operating pressure is 1.5Mpa (G).
Claims (9)
1. liquid blast furnace slag granulation and multiple-roll residual neat recovering system, it is characterized in that: comprise one-level vaporization cylinder granulation storehouse (5), secondary vaporization cylinder storage silo (9), three grades of cylinder water coolers (10) and residual neat recovering system, the opening for feed in described one-level vaporization cylinder granulation storehouse (5) be provided be communicated with tap cinder mouth for delivery of the liquid slag chute (3) of blast furnace slag and blast furnace slag is carried out to the pelletizer (2) of broken granulation, one-level vaporization cylinder granulation storehouse (5) and secondary vaporization cylinder storage silo (9), between secondary vaporization cylinder storage silo (9) and three grades of cylinder water coolers (10) respectively by the tremie pipe connection of connecting, the discharge port of three grades of cylinder water coolers (10) is communicated with slag particle collection device by tremie pipe,
On described one-level vaporization cylinder granulation storehouse (5), secondary vaporization cylinder storage silo (9) and three grades of cylinder water coolers (10), be provided with carbonated drink import and export;
Described residual neat recovering system comprises the service pump (13) being communicated with water source by water pipe; the water side of service pump is communicated with deoxygenator (11) and drum (6) by water pipe, flows to drum (6) successively from the water coolant of deoxygenator output behind three grades of cylinder water coolers (10), secondary vaporization cylinder storage silo (9) and one-level vaporization cylinder granulation storehouse (5).
2. liquid blast furnace slag granulation according to claim 1 and multiple-roll residual neat recovering system, it is characterized in that: on described one-level vaporization cylinder granulation storehouse (5), secondary vaporization cylinder storage silo (9) and three grades of cylinder water coolers (10), be also respectively arranged with slag wool outlet, slag wool outlet is communicated with the cotton system of exhausting collection; The cotton system of described exhausting collection comprises the cotton device of catching being communicated with the slag wool outlet on one-level vaporization cylinder granulation storehouse (5), secondary vaporization cylinder storage silo (9) and three grades of cylinder water coolers (10) respectively by air draft pipe, catches cotton device and is communicated with induced draft fan (14) by air draft pipe.
3. liquid blast furnace slag granulation according to claim 2 and multiple-roll residual neat recovering system, it is characterized in that: described one-level vaporization cylinder granulation storehouse (5), secondary vaporization cylinder storage silo (9) and three grades of cylinder water coolers (10) are the tube structure that is supported and laterally placed by bracing frame, the wall of cylindrical shell adopts membrane type close arranging pipe arranged in series to form, and cylindrical shell drives axle rotation centered by cylindrical shell central axis by being arranged on the driving mechanism of warehouse outside; The turnover water end (W.E.) of described membrane type close arranging pipe is communicated with carbonated drink import and export.
4. liquid blast furnace slag granulation according to claim 3 and multiple-roll residual neat recovering system; it is characterized in that: between described water source and service pump, on water pipe, be provided with softening water tank (12), on every section of water pipe in described residual neat recovering system, a water valve be set respectively.
5. liquid blast furnace slag granulation according to claim 4 and multiple-roll residual neat recovering system, is characterized in that: described in catch on every section of air draft pipe between cotton device and induced draft fan an air-valve be set respectively.
6. according to the liquid blast furnace slag granulation described in claim 2 to 5 any one and multiple-roll residual neat recovering system, it is characterized in that: described one-level vaporization cylinder granulation storehouse (5) comprises the preposition storehouse (51) being interconnected, middle storehouse (52) and rearmounted storehouse (53); Described liquid slag chute (3) and pelletizer (2) are all arranged on the opening for feed place in preposition storehouse, the front end in the Yu Zhong storehouse, rear end (52) in preposition storehouse (51) adopts mechanical seal to be connected, the rear end in middle storehouse (52) adopts mechanical seal to be connected with the front end of rearmounted storehouse (53), and carbonated drink import and export is arranged on the end center in rearmounted storehouse;
The rotatable tube structure of described middle storehouse (52) for adopting membrane type close arranging pipe arranged in series to form, is provided with spiral conveying cooling tube (58) in the inner chamber of middle storehouse, the turnover water end (W.E.) of membrane type close arranging pipe is imported and exported by pipeline communication carbonated drink respectively.
7. liquid blast furnace slag granulation according to claim 6 and multiple-roll residual neat recovering system, is characterized in that: the posterior segment of described middle storehouse inner chamber is also laid with material curtain abrasionproof and raises plate (57).
8. liquid blast furnace slag granulation according to claim 6 and multiple-roll residual neat recovering system; it is characterized in that: the cross section in described middle storehouse is circle or Polygons, in cartridge type, the longitudinal section in storehouse is the little olive shape broad in the middle in rectangle, two or one large one small pyramidal structure.
9. liquid blast furnace slag granulation according to claim 6 and multiple-roll residual neat recovering system, is characterized in that: the top in described preposition storehouse and the top in rearmounted storehouse are respectively arranged with the quick coagulator for injecting device (59) towards preposition storehouse inner chamber and middle storehouse inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800276.9U CN203625395U (en) | 2013-12-06 | 2013-12-06 | Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800276.9U CN203625395U (en) | 2013-12-06 | 2013-12-06 | Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625395U true CN203625395U (en) | 2014-06-04 |
Family
ID=50811888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320800276.9U Withdrawn - After Issue CN203625395U (en) | 2013-12-06 | 2013-12-06 | Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203625395U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642956A (en) * | 2013-12-06 | 2014-03-19 | 无锡市东方环境工程设计研究所有限公司 | Liquid state blast furnace slag granulation and multi-roller residual heat recovery system |
| CN104404180A (en) * | 2014-11-24 | 2015-03-11 | 中冶南方工程技术有限公司 | Robust type water balance control method of blast furnace slag treatment system |
| CN104596295A (en) * | 2015-01-14 | 2015-05-06 | 开封和成特种耐火材料有限公司 | Jetting collecting device |
| CN114576604A (en) * | 2022-04-07 | 2022-06-03 | 马鞍山市如松冶金科技有限责任公司 | Hot-melt slag gasification boiler heat recovery system and use method thereof |
-
2013
- 2013-12-06 CN CN201320800276.9U patent/CN203625395U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642956A (en) * | 2013-12-06 | 2014-03-19 | 无锡市东方环境工程设计研究所有限公司 | Liquid state blast furnace slag granulation and multi-roller residual heat recovery system |
| CN103642956B (en) * | 2013-12-06 | 2015-11-25 | 无锡市东方环境工程设计研究所有限公司 | Liquid blast furnace slag granulation and multiple-roll residual neat recovering system |
| CN104404180A (en) * | 2014-11-24 | 2015-03-11 | 中冶南方工程技术有限公司 | Robust type water balance control method of blast furnace slag treatment system |
| CN104404180B (en) * | 2014-11-24 | 2016-07-06 | 中冶南方工程技术有限公司 | A kind of robust type water balance control method of blast furnace slag processing system |
| CN104596295A (en) * | 2015-01-14 | 2015-05-06 | 开封和成特种耐火材料有限公司 | Jetting collecting device |
| CN114576604A (en) * | 2022-04-07 | 2022-06-03 | 马鞍山市如松冶金科技有限责任公司 | Hot-melt slag gasification boiler heat recovery system and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103642956B (en) | Liquid blast furnace slag granulation and multiple-roll residual neat recovering system | |
| CN102443662B (en) | Treatment device of liquid slag | |
| CN103557711B (en) | Molten slag rapid cooling, granulation and waste heat recovery power generation system and method | |
| CN102888473B (en) | Blast furnace slag granulation and waste heat recovery device | |
| CN203625395U (en) | Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system | |
| CN103820588B (en) | The method that the broken molten blast furnace slag sensible heat of quenching dry type reclaims and device | |
| CN203097979U (en) | High-temperature cinder waste heat recovery power generation device | |
| CN105627755A (en) | System used for sinter ore cooling and sensible heat efficient recycling | |
| CN101736101A (en) | Semi-wet slag treatment waste heat recovery generating system and method | |
| CN202830052U (en) | Liquid slag granulation and waste heat recovery device | |
| CN102925599A (en) | Recycling device and method for sensible heat of blast furnace slag | |
| CN104404179A (en) | Liquid high temperature material waste heat recovery unit | |
| CN108870994B (en) | The residual neat recovering system and method for liquid blast furnace | |
| CN103757155A (en) | Coke dry quenching water mist granulation device | |
| CN104388609A (en) | System and method for granulating metallurgical slag and recovering thermal energy of metallurgical slag | |
| CN104388608A (en) | Dry granulation waste heat recovering and grinding treatment system | |
| CN104073578A (en) | Dry sensible heat recycling system and method for blast furnace slag | |
| CN104141020B (en) | A kind of evaporimeter and high-temperature slag dry method residual neat recovering system | |
| CN103555870B (en) | High-temperature slag water-quenching condensation technology and high-temperature slag water-quenching condensation system free of cooling tower | |
| CN203534229U (en) | Power generating system for quick cooling granulating of molten slag and waste heat recovery | |
| CN202297622U (en) | High-temperature steel slag buffering and cooling device available for intermittent feeding | |
| CN111721135A (en) | Device and method for recovering waste heat generated by cooling and granulating high-temperature molten yellow phosphorus slag | |
| CN203625396U (en) | Dry process granulation bin for blast furnace slag | |
| CN103642957B (en) | Dry granulation of BF slag storehouse | |
| CN103757164A (en) | Dry type pelletizing and waste heat recovering device of high-temperature slags |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20151125 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |