CN105603184B - Sintering deposit halide solution spraying method - Google Patents
Sintering deposit halide solution spraying method Download PDFInfo
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- CN105603184B CN105603184B CN201610110608.9A CN201610110608A CN105603184B CN 105603184 B CN105603184 B CN 105603184B CN 201610110608 A CN201610110608 A CN 201610110608A CN 105603184 B CN105603184 B CN 105603184B
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- sintering deposit
- halide solution
- spray
- slotware
- shuttle
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
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- Environmental & Geological Engineering (AREA)
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- Geochemistry & Mineralogy (AREA)
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- Inorganic Chemistry (AREA)
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a kind of sintering deposit halide solution spraying method, including the step of sprayed using halide solution above the sintering deposit material, it is characterised in that also including being infiltrated from sintering deposit material lower surface using halide solution the step of.The present invention can preferably improve the mixed effect of halide solution and sintering deposit material, to improve follow-up sintering miberal powder effect.
Description
Technical field
The halide solution spray system that pre-treatment is used is smelted the present invention relates to a kind of blast furnace sintering deposit, is especially related to
And the sintering deposit halide solution spraying method in the spray system.
Background technology
Sintering deposit is by various powdery iron-containing raw materials, to be incorporated appropriate fuel and flux, adds appropriate water, it is blended and
Material is occurred a series of physical chemical change after pelletizing, mineral powder granular is cohered it is blocking, for blast furnace
Use.At present, because steel industry situation is severeer, take optimization sintering deposit to reduce production cost with ore deposit more, bring burning
Tie a certain degree of downslide of ore deposit index, especially sintering deposit low-temperature reduction disintegration energy, serious restriction next procedure blast furnace
Furnace condition anterograde.
Sintering deposit low-temperature reduction disintegration can refer to the characteristic of sintering deposit chipping efflorescence during low-temperature reduction, be
One important quality index of sintering deposit.During blast furnace ironmaking, after iron ore enters blast furnace, furnace charge drops to 400~
600 DEG C of interval, herein by the reduction of the coal gas from bottom house, it may occur that different degrees of fragmentation efflorescence.
Therefore, improvement sintering deposit low-temperature reduction disintegration energy of taking the necessary measures is highly desirable to, at present, toward sintering deposit table
Halide solution based on face sprinkling calcium chloride is to improve one of effective measures of sintering deposit low-temperature reduction disintegration energy index.
In the prior art, halide solution is sprayed, is usually directly to be carried out before sintering deposit enters blast furnace using shower
Sintering deposit after spray, spray is sent directly into blast furnace ironmaking；So, cause attachment of the solution to sintering deposit extremely uneven, influence
The low-temperature reduction disintegration energy of follow-up sintering ore deposit.In the prior art, spray typically directly buys the chlorination configured with liquid simultaneously
Calcium solution is transported to iron-smelter and used, and there is the higher awkward defect of cost.
In order to improve the mixed effect of halide solution and sintering deposit material, it is defeated that applicant's consideration devises a kind of sintering deposit
System is sent, the induction system includes sintering deposit belt conveyor and can realize spray to the sintering deposit on sintering deposit belt conveyor
Halide solution spray system, its feature is also to include end entrance and sintering deposit conveying on a homogenization silo, homogenization silo
Belt discharge end is connected, and the outlet of homogenization silo is connected with blast furnace；The halide solution spray system includes being used for sintering
Sintering deposit on ore deposit belt conveyor realizes the shower portion structure of spray, in addition to halide solution situ configuration device, halogenation
Thing solution situ configuration device is connected by water pump and liquid-transport pipe-line with shower portion structure.
A homogenization silo is so additionally arranged before blast furnace, sintering deposit is by the upper halide of halide solution spray system spray
Afterwards, because sintering deposit itself also has certain temperature, therefore feeding homogenization silo stays for some time, and can cause the halogen of spray
Compound solution is more uniformly comprehensively penetrated into inside sintering deposit under residual temperature action, is produced good homo-effect, is carried
The uniformity that high halide solution adhere to sintering deposit, just subsequently sends into the raising of efflorescence effect after blast furnace beneficial to sintering deposit.
Meanwhile, use situ configuration halide solution to reduce cost in spray system.
But wherein, how halide solution spray mode is specifically realized, can preferably improve spraying effect, in favor of
The follow-up efflorescence of sintering deposit, the problem of as there is considered solution.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are：How to provide one kind can be more
The mixed effect of halide solution and sintering deposit material is improved well, to improve the sintering deposit halogenation of follow-up sintering miberal powder effect
Thing solution spraying method.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of sintering deposit halide solution spraying method, including use halide solution to be sprayed above sintering deposit material
The step of pouring, it is characterised in that also including being infiltrated from sintering deposit material lower surface using halide solution the step of.
So, halide solution can realize attachment simultaneously from the upper and lower surface of sintering deposit material, drastically increase attached
Uniformity, the mixed effect of halide solution and sintering deposit material is improved, to improve follow-up sintering miberal powder effect.
As optimization, this method realizes that the halide is molten by the halide solution shower portion structure of following structure
Liquid shower portion structure, including the liquid-transport pipe-line with water pump, in addition to the spray box that upper end sealing is set, spray box pass through spray
Pipeline is connected with liquid-transport pipe-line, and spray box lower surface is just to being arranged above sintering deposit belt conveyor, and spray box lower surface is uniform
Gather and be provided with some spray apertures composition spray regions, spray peak width is corresponding consistent with sintering deposit belt conveyor width；Institute
Stating shower portion structure also includes the charging shuttle slotware of a strip, and charging shuttle slotware is obliquely installed in homogenization silo upper end,
It is the bathtub construction for feeding to feed shuttle slotware upper surface, feeds and rectifies under shuttle slotware to the setting of homogenization silo entrance, charging
The linking of shuttle slotware upper end is arranged at below sintering deposit belt conveyor discharge end and rectified upwards beyond the discharging of sintering deposit belt conveyor
To position, the width of charging shuttle slotware upper surface flute profile and the matching of sintering deposit belt conveyor width, charging shuttle slotware top downside
Water interlayer is provided with, water interlayer connects setting with liquid-transport pipe-line, and charging is set in the width direction at the bottom land upper end of shuttle slotware upper surface
Be equipped with one connected with water interlayer crack.
So, using spray box, the spraying effect of sheet, and simple spray can be realized above sintering deposit belt conveyor
Shower pipe spray is compared, and can be greatly enhanced spraying effect, improves the combination uniformity of halide solution and sintering deposit.Set simultaneously
Charging shuttle slotware is put, charging shuttle slotware upper end sets water interlayer to be connected with liquid-transport pipe-line, is set while feeding shuttle slotware upper surface
Putting to crack enables halide solution to overflow and trickled downwards along charging shuttle slotware upper surface bottom land with cracking, and so works as sintering
The sintering deposit material of ore deposit belt conveyor discharge end is left after charging shuttle slotware, can cause the sintering deposit material of bottom also can be with
The halide solution of shuttle slotware upper surface is fed uniformly in contact with generation makes to the spraying effect of undersurface layer sintering deposit material
Obtaining sintering deposit material upper and lower surface can be effective, equably sprays upper halide solution, improves spraying effect, improves sintering deposit
The combination uniformity of material and halide solution.
As optimization, regulation ball valve is provided with the spray piping.So, spray flux conveniently can be adjusted as needed
Size.
Preferably selection is that water interlayer is directly connected by the pipeline with regulation ball valve with spray box front end.So that halogen
Compound solution first flows through spray box and realizes spray, then flow to water interlayer, and the solution of water interlayer only needs solution can be from spilling of cracking
, it is little to hydraulic demand, therefore effective utilization to water-aspirator pressure has been better achieved.
As optimization, it is described crack positioned at upwards beyond sintering deposit belt conveyor discharge rectify to position.So, crack
The sintering deposit material fallen can be avoided, it is to avoid block.
In summary, the present invention can preferably improve the mixed effect of halide solution and sintering deposit material, to improve
Follow-up sintering miberal powder effect.
Brief description of the drawings
When Fig. 1 is implemented for the present invention, a kind of structural representation of sintering deposit transport process system of use, the sintering deposit is defeated
The halide solution spray system in processing system is sent to be used for the spraying method for implementing the present invention.With simplified lines table in figure
Show pipeline.
Embodiment
During specific implementation：The sintering deposit halide solution spraying method of the present invention, including used above sintering deposit material
The step of halide solution is sprayed, its feature is, in addition to is entered from sintering deposit material lower surface using halide solution
The step of row infiltration.
With reference to a kind of sintering deposit transport process system and its accompanying drawing, the present invention is described in further detail.As schemed
A kind of sintering deposit transport process system disclosed in 1, the halide solution spray system disclosed in the system is used to implement this hair
Bright spraying method；With reference to the system architecture and process is used, the inventive method is further elaborated.
Such as Fig. 1 sintering deposit transport process system, including sintering deposit belt conveyor 1 and can be to sintering deposit belt conveyor 1
On sintering deposit realize spray halide solution spray system, its feature is, in addition to a homogenization silo 2, homogenization material
End entrance and the linking of the discharge end of sintering deposit belt conveyor 1 on storehouse 2, the outlet of homogenization silo 2 is connected with blast furnace.
A homogenization silo is so additionally arranged before blast furnace, sintering deposit leans on halide solution（Chlorination is used in the present embodiment
Calcium solution）After the upper halide of spray system spray, because sintering deposit itself also has certain temperature, therefore feeding homogenization silo stops
A period of time is stayed, the halide solution of spray can be caused more uniformly comprehensively to penetrate into sintering deposit under residual temperature action
Inside, produces good homo-effect, improves the uniformity that halide solution adheres to sintering deposit, is just beneficial to sintering deposit follow-up
Send into the raising of efflorescence effect after blast furnace.
Wherein, the halide solution spray system, including shower portion structure and halide solution situ configuration device,
Halide solution situ configuration device is connected by water pump 10 and liquid-transport pipe-line 3 with shower portion structure.So, it is molten in halide
Halide solution situ configuration device can be leaned on to realize obtaining for halide solution by the way of situ configuration in liquid spray system
Take, can more preferably facilitate the use of halide solution and reduce cost.
Wherein, the halide solution situ configuration device includes halide solution configuration case 4, halide solution configuration case
4 upper ends have halide addition opening, and halide solution configuration case upper end is also associated with being provided with the water inlet of water inlet switch valve
Water pipe 5, the halide solution configuration bottom of case 4 is connected with liquid-transport pipe-line 3；Also include halide and dissolve accelerator.
The halide dissolves accelerator, including is provided with and communicated with compression sky positioned at halide solution configuration case 4 bottom
Tracheae 6, compressed air hose 6 is connected away from halide solution configuration one end of case 4 with compressed air source 7.
So, when halide solution is configured, opening water inlet switch valve is put into quantitative water and configures case to halide solution, together
When according to proportioning weighed halide from halide addition be added to opening halide solution configuration case in, open compressed air
Source is passed through air and entered from bottom in halide solution configuration case, and a large amount of bubbles entrain current of pneumatically generation, which are sprung up, to be turned over
Rise, and then promote halide flash melt, realize the situ configuration of halide solution.It is simultaneously this real using compressed air is passed through
The mode of existing halide auxiliary dissolving, is compared with by the way of stirring vane stirring auxiliary dissolving, had further the advantage that：1
It is that need not set simpler in motor, transmission mechanism and agitating device, structure, control more facilitates and cost is cheaper.2
It is the adverse effect that the corrosivity of halide can be avoided to bring, such as corrosion to agitating device can reduce the agitating device longevity
Life, and have impact on the purity of halide solution to reduce using effect.3 be can not only be very by the way of compressed air
Promote the dissolving of halide well, and a large amount of bubbles can be brought into enter in solution so that when subsequently spraying, bubble is with molten
Rupture can produce atomizing after liquid sprays, and improve spraying effect.
Wherein, flowmeter 8 is also equipped with the water inlet water pipe 5, to facilitate the control to the current that add water.Further,
Gas flow regulating valve 9 is also equipped with compressed air hose 6, to facilitate the control to gas flow.
Wherein, the halide solution configuration case 4 and corresponding water inlet water pipe 5 and compressed air hose 6 are arranged side by side two
Cover, and two halide solutions configuration lower box parts are connected each via the bypass line 11 of belt switch valve with liquid-transport pipe-line 3.This
Sample, when a halide solution configuration case is exporting solution realization spray, another halide solution configuration case can be completed
The work that solution is prepared, realizes by switching valve and exchanges, it is ensured that the continuity used.
Wherein, halide solution configuration case 4 bottom is provided with multiple air inlets and each air inlet passes through bronchial
12 are connected with compressed air hose 6, and the air inlet is evenly arranged as circle around halide solution configuration case bottom centre and respectively entered
Gas port is obliquely installed along the circle toward the same side direction.
So, the air inlet of air inlet can drive solution to produce rotation, and then cause solution integrally to produce the vortex at middle part,
So that liquid produced while integral-rotation it is overall springing up upwards is driven along surrounding by air-flow again after downward from middle part, produce
Three-dimensional mixing effect, can be better achieved the stirring to halide to accelerate dissolving.Preferably selection is, on air inlet
End outgassing direction is obliquely installed along outer top simultaneously, so so that it is more preferable to circulate effect above and below above-mentioned solution.
Wherein, the halide solution configuration case 4 is in barrel-shaped structure.So it is more favorable for the rotational flow of above-mentioned solution
To improve solute effect.
Wherein, the top of halide solution configuration case 4 is provided with top cover, and the halide addition is located at top cover with opening
Center.So, it is convenient to put into halide from vortex medium position so as to be involved in current after halide input most surging
Vortex bottom then surrounding is impacted by pressure-air, with preferably accelerate dissolving.
Wherein, check-valves 13 is also equipped with the liquid-transport pipe-line 3, to prevent solution from flowing back.
Wherein, the shower portion structure includes the spray box 14 that upper end seals setting, and spray box 14 passes through spray piping
Connected with liquid-transport pipe-line, spray box 14 lower surface is just to being arranged at the top of sintering deposit belt conveyor 1, and the spray lower surface of box 14 is uniform
Gather and be provided with some spray apertures composition spray regions, spray peak width is corresponding consistent with the width of sintering deposit belt conveyor 1.
So, using spray box, the spraying effect of sheet, and simple spray can be realized above sintering deposit belt conveyor
Shower pipe spray is compared, and can be greatly enhanced spraying effect, improves the combination uniformity of halide solution and sintering deposit.
Wherein, regulation ball valve 15 is provided with the spray piping.So, spray flux can be conveniently adjusted as needed
Size.
Wherein, the shower portion structure also includes the charging shuttle slotware 16 of a strip, and charging shuttle slotware 16 is tilted
It is arranged at the upper end of homogenization silo 2, the upper surface of charging shuttle slotware 16 is the bathtub construction for feeding, charging shuttle slotware 16 time is proper
Homogenization silo entrance is set, the upper end linking of charging shuttle slotware 16 is arranged at below sintering deposit belt conveyor discharge end and surpassed upwards
Go out the proper contraposition of sintering deposit belt conveyor discharging to put, the width and sintering deposit belt conveyor of the upper surface flute profile of charging shuttle slotware 16 are wide
Degree matching, charging shuttle slotware 16 is provided with water interlayer 17, water interlayer 17 on the downside of top（Pass through the pipeline with regulation ball valve）With it is defeated
The connection of liquid pipe road 3 is set, and be provided with one in the width direction at the upper surface bottom land upper end of charging shuttle slotware 16 connects with water interlayer
Crack.
A charging shuttle slotware is so added, charging shuttle slotware upper end sets water interlayer to be connected with liquid-transport pipe-line, simultaneously
Charging shuttle slotware upper surface, which sets to crack, enables halide solution to be overflowed with cracking and along feeding shuttle slotware upper surface bottom land
Trickling downwards, so after the sintering deposit material of sintering deposit belt conveyor discharge end leaves charging shuttle slotware, can cause bottom
Sintering deposit material also can be with the halide solution of charging shuttle slotware upper surface uniformly in contact with producing and undersurface layer is sintered
The spraying effect of mineral material so that sintering deposit material upper and lower surface can be effective, equably sprays upper halide solution, improves
Spraying effect, improves the combination uniformity of sintering deposit material and halide solution.
Preferably selection is that water interlayer 17 is directly connected by the pipeline 18 with regulation ball valve with spray box 14 front end.
So that halide solution first flows through spray box and realizes spray, then it flow to water interlayer, the solution of water interlayer only needs solution can be from opening
Seam overflows, little to hydraulic demand, therefore effective utilization to water-aspirator pressure has been better achieved.
In present embodiment, it is described crack positioned at upwards beyond sintering deposit belt conveyor discharge rectify to position.So,
Crack the sintering deposit material that can avoid falling, it is to avoid blocks.
Connected when it is implemented, being connected in such scheme or being connected may each be by transferring device, such as homogenization silo
Can be set up in parallel multigroup, sintering deposit belt conveyor discharge end is arranged on billy gate and can moved by billy gate
Dynamic regulation is to correspondence homogenization silo entrance, and by feeding shuttle slotware blanking in homogenization silo, homogenization silo outlet is passed sequentially through
Blast furnace entrance is connected to after outlet batcher, vibratory sieve and scale hooper.
In summary, above-mentioned induction system is simple in construction, easy to use, can realize halide solution on-site delivery, into
This is cheap, can be greatly enhanced halide solution and adhere to uniformity to sintering deposit, improve the follow-up efflorescence effect of sintering deposit, profit
Used in blast furnace.
Claims (4)
1. a kind of sintering deposit halide solution spraying method, including use halide solution to be sprayed above sintering deposit material
The step of, it is characterised in that also including being infiltrated from sintering deposit material lower surface using halide solution the step of；
This method is by the halide solution shower portion structure realization of following structure, the halide solution shower portion knot
Structure, including the liquid-transport pipe-line with water pump, in addition to the spray box that upper end sealing is set, spray box pass through spray piping and woven hose
Road is connected, and spray box lower surface is provided with just to being arranged above sintering deposit belt conveyor if spray box lower surface uniformly gathers
Dry spray apertures constitute spray region, and spray peak width is corresponding consistent with sintering deposit belt conveyor width；The shower portion knot
Structure also includes the charging shuttle slotware of a strip, and charging shuttle slotware is obliquely installed on homogenization silo upper end, charging shuttle slotware
Surface is the bathtub construction for feeding, feeds and rectifies under shuttle slotware to the setting of homogenization silo entrance, charging shuttle slotware upper end rank
Connect to be arranged at below sintering deposit belt conveyor discharge end and rectify contraposition beyond the discharging of sintering deposit belt conveyor upwards and put, feed shuttle
Width and sintering deposit belt conveyor the width matching of slotware upper surface flute profile, charging shuttle slotware are provided with water interlayer on the downside of top,
Water interlayer connects with liquid-transport pipe-line and is provided with one and water folder in the width direction at setting, charging shuttle slotware upper surface bottom land upper end
Layer connection is cracked, and cracks and halide solution is overflowed with cracking and along charging shuttle slotware upper surface bottom land to dirty
Drop down.
2. sintering deposit halide solution spraying method as claimed in claim 1, it is characterised in that set on the spray piping
There is regulation ball valve.
3. sintering deposit halide solution spraying method as claimed in claim 1, it is characterised in that described to crack positioned at super upwards
Go out sintering deposit belt conveyor discharging rectify to position.
4. sintering deposit halide solution spraying method as claimed in claim 1, it is characterised in that water interlayer passes through band regulation ball
The pipeline of valve is directly connected with spray box front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110608.9A CN105603184B (en) | 2016-02-29 | 2016-02-29 | Sintering deposit halide solution spraying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110608.9A CN105603184B (en) | 2016-02-29 | 2016-02-29 | Sintering deposit halide solution spraying method |
Publications (2)
| Publication Number | Publication Date |
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| CN105603184A CN105603184A (en) | 2016-05-25 |
| CN105603184B true CN105603184B (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610110608.9A Active CN105603184B (en) | 2016-02-29 | 2016-02-29 | Sintering deposit halide solution spraying method |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59104437A (en) * | 1982-12-03 | 1984-06-16 | Kobe Steel Ltd | Preparation of sintered ore |
| CN202181330U (en) * | 2011-06-28 | 2012-04-04 | 鞍钢股份有限公司 | Halide spraying device for finished sintering ores |
| CN203393200U (en) * | 2013-08-15 | 2014-01-15 | 武钢集团昆明钢铁股份有限公司 | Online efficient spraying device for working medium of sintering process |
| CN104060088A (en) * | 2014-07-01 | 2014-09-24 | 武钢集团昆明钢铁股份有限公司 | Method and device for improving concentration stability of calcium chloride solution used for sintering ore |
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2016
- 2016-02-29 CN CN201610110608.9A patent/CN105603184B/en active Active
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| CN105603184A (en) | 2016-05-25 |
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Effective date of registration: 20181015 Address after: 401220 No. 1, Gangcheng Road, Changshou District, Chongqing Patentee after: Chongqing Iron and Steel Co., Ltd. Address before: 400080 No. 1, three village, Dadun three, Dadukou District, Chongqing Patentee before: Chongqing Iron & Steel (Group) Co., Ltd. |
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Address after: No.2 Jiangnan Avenue, Jiangnan street, Changshou District, Chongqing 401220 Patentee after: CHONGQING IRON & STEEL Co.,Ltd. Address before: 401220 No. 1, Gangcheng Road, Changshou District, Chongqing Patentee before: CHONGQING IRON & STEEL Co.,Ltd. |
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