CN105256099A - Online screening system for bulk materials for converter, steelmaking device and screening method - Google Patents
Online screening system for bulk materials for converter, steelmaking device and screening method Download PDFInfo
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- CN105256099A CN105256099A CN201510713201.0A CN201510713201A CN105256099A CN 105256099 A CN105256099 A CN 105256099A CN 201510713201 A CN201510713201 A CN 201510713201A CN 105256099 A CN105256099 A CN 105256099A
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- 239000000463 material Substances 0.000 title claims abstract description 196
- 238000012216 screening Methods 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009628 steelmaking Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 76
- 239000013590 bulk material Substances 0.000 claims abstract description 27
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000007873 sieving Methods 0.000 claims description 9
- 241000406668 Loxodonta cyclotis Species 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000004571 lime Substances 0.000 description 15
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 14
- 235000011941 Tilia x europaea Nutrition 0.000 description 14
- 230000032258 transport Effects 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- 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
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to converter steelmaking and provides an online screening system for bulk materials for a converter. The online steelmaking system comprises at least one material bin, at least one vibration screening device, a bulk material collecting device and at least one powder collection device. Each vibration screening device is provided with a feeding port, a powder outlet and a bulk material outlet. Each feeding port is in butt joint with a discharging port of the material bin corresponding to the feeding port. Each powder outlet is connected to the powder collection device corresponding to the powder outlet. All the bulk material outlets are connected to the bulk material collecting device. The invention further provides a steelmaking device which comprises the screening system and an online screening method for the bulk materials for the converter. By means of the screening system, after materials pass through the working vibration screening devices, powder materials with small granularity can be recycled, the bulk materials conforming to use of the converter are guided into the converter through the bulk material collecting device, and therefore it can be avoided that powder materials influence a dust removal system, recycled powder materials can be reused, the steelmaking cost is reduced, and operation is convenient.
Description
Technical field
The present invention relates to converter steelmaking, particularly relate to the online screening system of a kind of coverter pig bulk material, steelmaking equipment and method for sieving.
Background technology
Converter smelting operation needs to add the bulk materials such as a large amount of quickened lime, rhombspar, agglomerate, fluorite for slag making and cooling operation.Especially the intensity of quickened lime own is not high for these bulk materials, easily broken in the process of its transport, storage, use, causes material particular diameter to change, produces certain powder.These powder are after joining converter, due to its lighter weight, be subject to the impact of red-hot air-flow and the effect of primary dedusting system negative pressure-pumping in stove simultaneously, often taken away by inner flue gas of the stove air-flow and enter dust-removal system, material practical efficiency is caused to reduce, raw material consumption cost increase.The powder be pulled away can not actual participation molten steel chemical reaction, and the harmful elements such as the sulphur phosphorus in molten iron can not get effective removal, thus causes molten steel composition unstable, and smelting process is difficult to accurate control.In addition, these powder are easy fouling sclerosis in dust-removal system, and plug nozzle is unfavorable to the permanently effective operation of dust-removal system.
Summary of the invention
The object of the present invention is to provide the online screening system of a kind of coverter pig bulk material, being intended to the problem making utilization ratio lower because producing powder for solving existing coverter pig material.
The present invention is achieved in that
The embodiment of the present invention provides a kind of coverter pig bulk material online screening system, comprise and be at least one high-order feed bin, with each described feed bin one_to_one corresponding and at least one vibration screening device be positioned at below corresponding described feed bin, be connected to converter material mouth block material collection device and collect powder material and with each described vibration screening device at least one powder collection device one to one, described in each, vibration screening device all has opening for feed, dust outlet and the outlet of block material, described dust outlet and described piece of material outlet are all positioned at below described opening for feed, and the discharge port of the described feed bin that opening for feed docking is corresponding with it described in each, dust outlet described in each is connected to the described powder collection device corresponding with it, each described piece of material outlet is all connected to described piece of material collection device.
Particularly, described in each, vibration screening device includes cavity, described opening for feed, described dust outlet and described piece of material outlet are all positioned on described cavity, be provided with in described cavity is tilted the oscillating plate extended to described piece of material outlet along described opening for feed, described dust outlet is positioned at immediately below described oscillating plate.
Particularly, powder collection device described in each includes returning charge elephant trunk and ash silo, described dust outlet with and its corresponding described ash silo between connected by described returning charge elephant trunk.
Particularly, described ash silo is funnel-form, offers drain hole in the low level place of described ash silo, and in described ash silo, be also provided with the pneumatic discharge valve of drain hole described in folding.
Further, described piece of material collection device comprises and gathers bucket and feeding chute, gathers bucket, gather bucket and described converter described in described feeding chute conducting described in each described piece of material outlet is all connected to.
Further, described piece of material collection device also comprises and each described vibration screening device at least one scale hooper one to one, gather in bucket described in the material of block material outlet described in each enters through the described scale hooper corresponding with it, be provided with pressure transmitter in each described scale hooper, and each described scale hooper and described gathering between bucket control break-make by pneumatic gate valve.
The embodiment of the present invention also provides a kind of steelmaking equipment, and comprise converter and the online screening system of above-mentioned coverter pig bulk material, described piece of material collection device is connected to described converter.
The embodiment of the present invention also provides a kind of coverter pig bulk material online method for sieving, and material screening in block material collection device and powder collection device, is comprised following operation steps by employing vibration screening device:
Be placed in by material and be in high-order feed bin, in the described vibration screening postpone of startup, the material in described feed bin enters described vibration screening device and sieves;
After screening, lumpy material is exported by the block material of described vibration screening device and enters in the scale hooper of described piece of material collection device, and the powder material after screening is collected in the ash silo of described powder collection device by the dust outlet of described vibration screening device;
Before vibrosieve, set the load capacity of described scale hooper, and when the lumpy material collected in it reaches set(ting)value, described scale hooper is opened, what in it, lumpy material entered described piece of material collection device gathers in bucket;
When converter needs reinforced, described in gather bucket and open, in it, lumpy material enters in described converter;
After the powder material in described ash silo reaches the upper limit, open described ash silo and powder material transport in it is reclaimed.
Further, described vibration screening is set to variable frequency control, and when the weight of material in described scale hooper is much smaller than set(ting)value, described vibration screening device adopts the feed that shakes by force, and when the weight of material in described scale hooper is close to set(ting)value, described vibration screening device adopts the weak feed that shakes.
Particularly, described vibration screening device vibratory screening material, and size be less than 5mm enter described powder collection device collect, size is that 5-50mm enters in described converter through described piece of material collection device.
The present invention has following beneficial effect:
In the present invention, the number of vibration screening device is corresponding with the kind of the bulk material of coverter pig, each material is placed in corresponding feed bin, after vibration screening device starts, material in feed bin enters in corresponding vibration screening device, and by the material of vibrosieve different-grain diameter, powder material is recycled by the powder collection device of correspondence, lumpy material then all enters in block material collection device, then is imported in converter by block material collection device.This is sieved according to particle diameter it before material enters converter, thus powder can be avoided to enter in converter, not only ensure utilization of materials, reduce the waste of powder material, and can not have an impact to dust-removal system.In method for sieving provided by the invention, lumpy material is introduced into after isolation in scale hooper and carries out meter heavily, and enter after weight reaches set(ting)value and gather in bucket, for this form, all importing after various materials can being weighed by the scale hooper of correspondence respectively gathers in bucket, import in converter by gathering bucket collective, operation is very easy again.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the online screening system of coverter pig bulk material that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the operating diagram of the online screening system of coverter pig bulk material of Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of coverter pig bulk material online screening system, comprise at least one feed bin 1, at least one vibration screening device 2, block material collection device 4 and at least one powder collection device 3, wherein feed bin 1, one_to_one corresponding between vibration screening device 2 and powder collection device 3 three, each feed bin 1 is all in a high position, be mainly used in depositing material, the vibration screening device corresponding with it 2 is positioned at below it, vibration screening device 2 can be installed on the high-rise frame platform of converter, the discharge port 11 of usual feed bin 1 docks with the opening for feed 211 of corresponding vibration screening device 2, material in it can enter in vibration screening device 2 by discharge port 11 and opening for feed 211, vibration screening device 2 also has dust outlet 212 and block material outlet 213, both are all positioned at the below of opening for feed 211, powder collection device 3 is all connected to the dust outlet 212 of corresponding vibration screening device 2, the block material of each vibration screening device 2 exports 213 and is then all connected to block material collection device 4, converter (not shown) is also connected to for block material collection device 4.In the present embodiment, feed bin 1, vibration screening device 2, powder collection device 3 and block material collection device 4 all have certain position relationship, the discharge port 11 of feed bin 1 is positioned at the low level of feed bin 1 and it is positioned at above the opening for feed 211 of corresponding vibration screening device 2, after the discharge port 11 of feed bin 1 is opened, in it, material can be advanced in vibration screening device 2 certainly under gravity, accordingly, powder collection device 3 is positioned at the below of corresponding dust outlet 212, block material collection device 4 is positioned at below the block material outlet 213 of each vibration screening device 2, to this when material enters after in vibration screening device 2, sieved according to material particular diameter by vibration, make the powder material after screening under gravity from being advanced in powder collection device 3, and lumpy material also all enters in block material collection device 4 under gravity after screening, then can enter in converter through block material collection device 4, for between powder collection device 3 and block material collection device 4 then for being arranged side by side.In the present embodiment, the number of feed bin 1, vibration screening device 2 and powder collection device 3 can be corresponding with the kind of coverter pig bulk material, a wherein material deposited by each feed bin 1, vibration screening device 2 all sieves corresponding material, and all import in block material collection device 4 in block various materials after screening, import in converter by this block material collection device 4 is unified, very convenient.Adopt screening system of the present invention, make the powder material that enters in converter considerably less, powder material not only can be avoided to have a negative impact to converter dedusting line, and powder material can be collected, improve the utilization ratio of material, greatly reduce steel-making cost, such as wherein a kind of material-lime, assuming that content of powder is 10% calculating in steel-making lime, the converter smelting cycle is 36min, the lime consumed approximately is needed every day to be about 200t, every day and recyclable lime powder 20t, annual recyclable lime powder 6000t, calculate with lime market value 300 yuan/t, often be only recovery lime powder one and can produce economic benefit 1,800,000 yuan, iron melt desulfurizing agent preparation or sintering mine additive preparation can also be directly used in for the lime powder collected, produce larger economic benefit.Screening system of the present invention sieves online to material in addition, material after screening directly carries out in converter, middle without having bad luck link, material blanking is interference-free, converter producing rhythm can be mated, this vibration screening device 2 is in the end of material transportation process, after vibrosieve, material separating twice can be stopped, ensure the integrity into stove material to greatest extent.
See Fig. 1, the structure of refinement vibration screening device 2, each vibration screening device 2 includes a cavity 21, opening for feed 211, dust outlet 212 and block material outlet 213 is all opened on this cavity 21, be provided with an oscillating plate 22 cavity 21 is tilted, this oscillating plate 22 is downward-sloping along the direction of opening for feed 211 to block material outlet 213, and dust outlet 212 is positioned at immediately below oscillating plate 22.In the present embodiment, oscillating plate 22 vibrates under external force in order, material in feed bin 1 is entered after in cavity 21 by opening for feed 211 and directly falls on oscillating plate 22, by the vibrosieve function of oscillating plate 22, make the powder material in it fall in powder collection device 3 through the filter opening on oscillating plate 22 through dust outlet 212, larger lumpy material then moves down along oscillating plate 22 and enters in block material collection device 4 through block material outlet 213.Not only can be formed the screening of material to this by this oscillating plate 22 be obliquely installed, not form the collection to powder material and lumpy material by other device simultaneously.
The structure of refinement powder collection device 3, each powder collection device 3 includes returning charge elephant trunk 31 and ash silo 32, dust outlet 212 with and its corresponding ash silo 32 between connected by returning charge elephant trunk 31.In the present embodiment, the powder material that the dust outlet 212 of vibration screening device 2 is discharged is deposited in ash silo 32 via corresponding returning charge elephant trunk 31, namely ash silo 32 is for prestoring the powder material after being sieved by vibration screening device 2, it is overall in funnel-form, namely vertically, the size of ash silo 32 upper end is larger facilitates the powder material in returning charge elephant trunk 31 to enter in ash silo 32, the size of its lower end is then less, drain hole 321 can offered, the powder material be piled up in ash silo 32 drops along drain hole 321 under gravity, at this drain hole 321 place, pneumatic discharge valve 33 is provided with to this, in ash silo 32, be provided with level gage (not shown) simultaneously, pneumatic discharge valve 33 cuts out drain hole 321 under normal circumstances, powder material then after screening is all piled up in ash silo 32, and when the level gage powder material detected in ash silo 32 reaches set(ting)value, then transport trolley can be travelled to drain hole 321, drain hole 321 opened by pneumatic discharge valve 33, in it, powder material all falls in transport trolley and transports.
The structure of refinement block material collection device 4, block material collection device 4 comprises and gathers bucket 41 and feeding chute 42, the lumpy material of block material outlet 213 discharge of each vibration screening device 2 all comes together in and gathers in bucket 41, feeding chute 42 connects to gather bucket 41 and converter, and the lumpy material gathered in bucket 41 can enter in converter through feeding chute 42.In the present embodiment, gather bucket 41 and can be one, namely one gather bucket 41 can corresponding multiple vibration screening device 2, the various materials of coverter pig come together in and gather in bucket 41 after acting on through each self-corresponding vibration screening device 2, a pneumatic gate valve 43 is provided with in the bottom of gathering bucket 41, the folding gathering bucket 41 is controlled by this pneumatic gate valve 43, namely the lumpy material after sieving under normal circumstances can be piled up in and gather in bucket 41, and when converter needs to add materials, then can open this pneumatic gate valve 43, gather the lumpy material piled up in bucket 41 to enter in converter through feeding chute 42.
Optimize above-described embodiment, block material collection device 4 also includes at least one scale hooper 44, each scale hooper 44 and each vibration screening device 2 one_to_one corresponding, and each scale hooper 44 is all at the vibration screening device 2 of correspondence and gather between bucket 41, the lumpy material that then the block material outlet 213 of each vibration screening device 2 is discharged is introduced in corresponding scale hooper 44, entered by this scale hooper 44 again and gather bucket 41, pressure transmitter (not shown) is provided with in each scale hooper 44, the weight of the lumpy material in corresponding scale hooper 44 can be measured by this pressure transmitter, and to be also provided with at each scale hooper 44 and gathering the break-make that pneumatic gate valve 43 controls between the two between bucket 41.In the present invention, when making steel, certain ratio should be had between the various bulk materials of coverter pig, namely should mix according to a certain percentage gathering the various lumpy materials in bucket 41, to in this present embodiment, have additional scale hooper 44 gathering between bucket 41 and each vibration screening device 2, namely each material lumpy material after screening through each self-corresponding vibration screening device 2 is introduced in corresponding scale hooper 44, scale hooper 44 and the pneumatic gate valve 43 gathered between bucket 41 are closed, scale hooper 44 is setting weight parameter in advance, and when the weight in it reaches set(ting)value, open the pneumatic gate valve 43 of this scale hooper 44, the lumpy material that combined weight requires enters and gathers in bucket 41, the like various material all reach weight demands after come together in and gather in bucket 41, the material then gathered in bucket 41 all meets the matching ratio of coverter pig material, and when needs add materials in converter, open the pneumatic gate valve 43 gathering bucket 41, in it, the lumpy material of mixing all enters in converter through feeding chute 42.In addition, for this mode of operation of screening system, screening system is also provided with control unit (not shown), this control unit directly can control the vibrational frequency of each vibration screening device 2, and by each pneumatic discharge valve 33, each pneumatic gate valve 43, level gage in each ash silo 32 and the pressure transmitter in each scale hooper 44 are all electrically connected to this control unit, thus make the equal automatic operation of each parts of screening system, namely after being added with various material in feed bin 1, opening action for follow-up vibrosieve action and each valve is and automatically carries out, level of automation is very high, greatly reduce operator's workload, and employing control unit, operator can Long-distance Control, not only easy to operate, and can effectively improve operator safety coefficient.
Refer again to Fig. 1 and Fig. 2, the embodiment of the present invention also provides a kind of steelmaking equipment, comprises converter and above-mentioned screening system, and the block material collection device 4 of screening system is connected to the material inlet of this converter.In the present embodiment, above-mentioned screening system directly applied by steelmaking equipment, thus the material powders content entering use in converter can be made greatly to reduce, the effect of collecting powder material can also be played simultaneously, not only effectively reduce steel-making cost, but also the impact of powder material on dust-removal system can be reduced.
The embodiment of the present invention also provides a kind of coverter pig bulk material online method for sieving, adopt vibration screening device 2 by the material screening in feed bin 1 in block material collection device 4 and powder collection device 3, namely adopt above-mentioned screening system to sieve coverter pig material, specifically comprise following operation steps:
First various material is placed in corresponding high hopper 1, and after Vibration on Start-up screening plant 2, material in corresponding feed bin 1 directly enters in this vibration screening device 2 and sieves, the discharge port 11 of feed bin 1 be coordinated signals between corresponding vibration screening device 2, namely after vibration screening device 2 starts, the discharge port 11 of feed bin 1 just can be opened, and makes the material entered in vibration screening device 2 all can carry out vibrosieve;
Material is after vibrosieve, wherein lumpy material can enter in block material collection device 4 scale hooper 44 corresponding with this vibration screening device 2 by the block material outlet 213 of vibration screening device 2, powder material wherein is then collected in the ash silo 32 of powder collection device 3 by the dust outlet 212 of vibration screening device 2, each vibration screening device 2 all has certain sizing screening precision, require to be set to 5mm according to smelting technology, namely raw meal particle size size is less than 5mm and is defined as powder, collect entering after vibrosieve in powder collection device 3, and when raw meal particle size is greater than 5mm, then be defined as lumpy material, certainly it also should be not excessive, lumpy material size can be defined as 5-50mm, all enter in converter through block material collection device 4 after vibrosieve,
Before vibrosieve, also should preset the weighing weight in scale hooper 44, and when the lumpy material collected in it reaches setting, vibration screening device 2 quits work, the discharge port 11 of feed bin 1 is closed, also opened by the pneumatic gate valve 43 of this scale hooper 44, the lumpy material piled up in it can enter gathering in bucket 41 of block material collection device 4 simultaneously, and the emptying rear pneumatic gate valve 43 of closing correspondence of lumpy material in scale hooper 44, assuming that material is quickened lime, the converter smelting of 1 100t is produced, 1t steel needs the quickened lime consuming 50kg, need each time this to add 5t quickened lime in converter, thus the weight setpoint value of the pressure transmitter of the scale hooper 44 of corresponding quickened lime is 5t, and when the quickened lime weight in scale hooper 44 is 5t, close corresponding vibration screening device 2, whole process is approximately 2-4min, and in whole process, vibration screening device 2 adopts variable frequency control, when the lumpy material weight in scale hooper 44 is much smaller than set(ting)value, its vibrational frequency is larger, vibration screening device 2 adopts pattern of shaking by force to feed in scale hooper 44, accelerate delivery rate, and when weight is close to set(ting)value (being generally set(ting)value 90%), vibrational frequency reduces, this vibration screening device 2 adopts weak pattern of shaking, lumpy material weight is avoided to exceed set(ting)value, 10:1 be can be for the ratio between strong vibration frequency and weak vibration frequency, namely delivery rate 10 of shaking by force is doubly to weak delivery rate of shaking,
When converter needs reinforced, then the pneumatic gate valve 43 gathering bucket 41 can be opened, gathering the various lumpy materials piled up in bucket 41 enters in converter through feeding chute 42, accordingly, when the level gage in ash silo 32 detects that in it, powder material height reaches set(ting)value, then also the pneumatic discharge valve 33 of ash silo 32 is opened, adopt transport trolley the powder material piled up in it can be transported.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the online screening system of coverter pig bulk material, it is characterized in that: comprise and be at least one high-order feed bin, with each described feed bin one_to_one corresponding and at least one vibration screening device be positioned at below corresponding described feed bin, be connected to converter material mouth block material collection device and collect powder material and with each described vibration screening device at least one powder collection device one to one, described in each, vibration screening device all has opening for feed, dust outlet and the outlet of block material, described dust outlet and described piece of material outlet are all positioned at below described opening for feed, and the discharge port of the described feed bin that opening for feed docking is corresponding with it described in each, dust outlet described in each is connected to the described powder collection device corresponding with it, each described piece of material outlet is all connected to described piece of material collection device.
2. the online screening system of coverter pig bulk material as claimed in claim 1, it is characterized in that: described in each, vibration screening device includes cavity, described opening for feed, described dust outlet and described piece of material outlet are all positioned on described cavity, be provided with in described cavity is tilted the oscillating plate extended to described piece of material outlet along described opening for feed, described dust outlet is positioned at immediately below described oscillating plate.
3. the online screening system of coverter pig bulk material as claimed in claim 1, is characterized in that: powder collection device described in each includes returning charge elephant trunk and ash silo, described dust outlet with and its corresponding described ash silo between connected by described returning charge elephant trunk.
4. the online screening system of coverter pig bulk material as claimed in claim 3, is characterized in that: described ash silo is funnel-form, offers drain hole in the low level place of described ash silo, and in described ash silo, be also provided with the pneumatic discharge valve of drain hole described in folding.
5. the online screening system of coverter pig bulk material as claimed in claim 1, it is characterized in that: described piece of material collection device comprises and gather bucket and feeding chute, gather bucket described in each described piece of material outlet is all connected to, described in described feeding chute conducting, gather bucket and described converter.
6. the online screening system of coverter pig bulk material as claimed in claim 5, it is characterized in that: described piece of material collection device also comprises and each described vibration screening device at least one scale hooper one to one, gather in bucket described in the material of block material outlet described in each enters through the described scale hooper corresponding with it, be provided with pressure transmitter in each described scale hooper, and each described scale hooper and described gathering between bucket control break-make by pneumatic gate valve.
7. a steelmaking equipment, comprises converter, it is characterized in that: also comprise the online screening system of coverter pig bulk material as described in any one of claim 1-6, described piece of material collection device is connected to described converter.
8. the online method for sieving of coverter pig bulk material, material screening in block material collection device and powder collection device, is characterized in that, comprises following operation steps by employing vibration screening device:
Be placed in by material and be in high-order feed bin, in the described vibration screening postpone of startup, the material in described feed bin enters described vibration screening device and sieves;
After screening, lumpy material is exported by the block material of described vibration screening device and enters in the scale hooper of described piece of material collection device, and the powder material after screening is collected in the ash silo of described powder collection device by the dust outlet of described vibration screening device;
Before vibrosieve, set the load capacity of described scale hooper, and when the lumpy material collected in it reaches set(ting)value, described scale hooper is opened, what in it, lumpy material entered described piece of material collection device gathers in bucket;
When converter needs reinforced, described in gather bucket and open, in it, lumpy material enters in described converter;
After the powder material in described ash silo reaches the upper limit, open described ash silo and powder material transport in it is reclaimed.
9. the online method for sieving of coverter pig bulk material as claimed in claim 8, it is characterized in that: described vibration screening is set to variable frequency control, when the weight of material in described scale hooper is much smaller than set(ting)value, described vibration screening device adopts the feed that shakes by force, and when the weight of material in described scale hooper is close to set(ting)value, described vibration screening device adopts the weak feed that shakes.
10. the online method for sieving of coverter pig bulk material as claimed in claim 8, it is characterized in that: described vibration screening device vibratory screening material, and size be less than 5mm enter described powder collection device collect, size is that 5-50mm enters in described converter through described piece of material collection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713201.0A CN105256099B (en) | 2015-10-28 | 2015-10-28 | The online screening system of coverter pig bulk material, steelmaking equipment and method for sieving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713201.0A CN105256099B (en) | 2015-10-28 | 2015-10-28 | The online screening system of coverter pig bulk material, steelmaking equipment and method for sieving |
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| Publication Number | Publication Date |
|---|---|
| CN105256099A true CN105256099A (en) | 2016-01-20 |
| CN105256099B CN105256099B (en) | 2018-08-17 |
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| CN201510713201.0A Active CN105256099B (en) | 2015-10-28 | 2015-10-28 | The online screening system of coverter pig bulk material, steelmaking equipment and method for sieving |
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| CN (1) | CN105256099B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479582A (en) * | 2019-07-24 | 2019-11-22 | 宁波双鹿新能源科技有限公司 | A kind of battery zinc powder screening weight On-line Control equipment |
| CN112849791A (en) * | 2020-12-31 | 2021-05-28 | 逸盛大化石化有限公司 | Intermediate storage bin mechanism with vibrating screen |
| CN116497171A (en) * | 2023-03-29 | 2023-07-28 | 北京首钢股份有限公司 | a feeding device |
| CN116588713A (en) * | 2023-03-29 | 2023-08-15 | 北京首钢股份有限公司 | a feeding device |
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| CN201596616U (en) * | 2009-12-02 | 2010-10-06 | 中冶东方工程技术有限公司 | Iron alloy burdening screening device |
| CN202498022U (en) * | 2012-03-15 | 2012-10-24 | 四川省达州钢铁集团有限责任公司 | System for screening and recycling blast furnace return ore |
| CN202621443U (en) * | 2012-04-24 | 2012-12-26 | 冷水江钢铁有限责任公司 | Online lime screening device |
| CN205115522U (en) * | 2015-10-28 | 2016-03-30 | 中冶南方工程技术有限公司 | Bulk material system of sieving and steelmaking equipment on line for converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201596616U (en) * | 2009-12-02 | 2010-10-06 | 中冶东方工程技术有限公司 | Iron alloy burdening screening device |
| CN202498022U (en) * | 2012-03-15 | 2012-10-24 | 四川省达州钢铁集团有限责任公司 | System for screening and recycling blast furnace return ore |
| CN202621443U (en) * | 2012-04-24 | 2012-12-26 | 冷水江钢铁有限责任公司 | Online lime screening device |
| CN205115522U (en) * | 2015-10-28 | 2016-03-30 | 中冶南方工程技术有限公司 | Bulk material system of sieving and steelmaking equipment on line for converter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479582A (en) * | 2019-07-24 | 2019-11-22 | 宁波双鹿新能源科技有限公司 | A kind of battery zinc powder screening weight On-line Control equipment |
| CN110479582B (en) * | 2019-07-24 | 2022-02-18 | 宁波双鹿新能源科技有限公司 | Battery zinc powder screening weight on-line control equipment |
| CN112849791A (en) * | 2020-12-31 | 2021-05-28 | 逸盛大化石化有限公司 | Intermediate storage bin mechanism with vibrating screen |
| CN116497171A (en) * | 2023-03-29 | 2023-07-28 | 北京首钢股份有限公司 | a feeding device |
| CN116588713A (en) * | 2023-03-29 | 2023-08-15 | 北京首钢股份有限公司 | a feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105256099B (en) | 2018-08-17 |
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