CN105256099B - The online screening system of coverter pig bulk material, steelmaking equipment and method for sieving - Google Patents
The online screening system of coverter pig bulk material, steelmaking equipment and method for sieving Download PDFInfo
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- CN105256099B CN105256099B CN201510713201.0A CN201510713201A CN105256099B CN 105256099 B CN105256099 B CN 105256099B CN 201510713201 A CN201510713201 A CN 201510713201A CN 105256099 B CN105256099 B CN 105256099B
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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
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- 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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Abstract
The present invention relates to pneumatic steelmakings, a kind of online screening system of coverter pig bulk material is provided, including at least one feed bin, at least one vibration screening device, block collection device and at least one powder collection device, each vibration screening device all has feed inlet, dust outlet and block outlet, and each feed inlet docks the discharge port of corresponding feed bin, each dust outlet is connected to corresponding powder collection device, and each block outlet is connected to block collection device；A kind of steelmaking equipment, including above-mentioned screening system are also provided；A kind of online method for sieving of coverter pig bulk material is also provided, using above-mentioned screening system.Material is after vibration screening device works in the present invention, the smaller powder material of granularity is recyclable, and the lump material for meeting coverter pig is imported through block collection device in converter, dust pelletizing system not only can be influenced to avoid powder material, and the powder material of recycling can utilize again, steel-making cost is reduced, operation is also more convenient.
Description
Technical field
The present invention relates to pneumatic steelmaking more particularly to a kind of online screening system of coverter pig bulk material, steelmaking equipment with
And method for sieving.
Background technology
Converter smelting process needs to be added the bulk materials such as a large amount of active limes, dolomite, sinter, fluorite for slag making
And cooling down operation.These bulk materials especially active lime intensity itself is not high, in the process that it transports, stores, uses
In be easily broken, cause material particular diameter to change, generate certain powder.These powder are after being added to converter, due to its matter
Amount is lighter, while being influenced by red-hot air-flow in stove and the effect of primary dedusting system negative-pressure ward, often by inner flue gas of the stove gas
Stream is taken away into dust pelletizing system, and the reduction of material practical efficiency, consumption of raw materials cost increase are caused.The powder being pulled away cannot be real
Border participates in molten steel chemical reaction, and the harmful elements such as sulphur phosphorus in molten iron cannot effectively remove, so as to cause molten steel composition shakiness
Fixed, smelting process is difficult to accurately control.In addition, these powder are easy fouling hardening, plug nozzle, to dedusting in dust pelletizing system
System long-term and effective operation is unfavorable.
Invention content
The purpose of the present invention is to provide a kind of online screening systems of coverter pig bulk material, it is intended to existing for solving
Coverter pig material so that utilization rate is relatively low because leading to the problem of powder.
The invention is realized in this way：
The embodiment of the present invention provides a kind of online screening system of coverter pig bulk material, includes in at least one of a high position
Feed bin, is connected at least one vibration screening device for corresponding and being located at below the corresponding feed bin with each feed bin
The block collection device of converter material mouth and collect powder material and with each vibration screening device correspondingly at least one
A powder collection device, each vibration screening device all have feed inlet, dust outlet and block outlet, the powder
Outlet and block outlet are respectively positioned below the feed inlet, and each feed inlet docks the corresponding material
The discharge port in storehouse, each dust outlet are connected to the corresponding powder collection device, and each block outlet is equal
It is connected to the block collection device.
Specifically, each vibration screening device includes cavity, the feed inlet, the dust outlet and described
Block outlet is respectively positioned on the cavity, and extension is exported to the block along the feed inlet in tilted be provided with of the cavity
Oscillating plate, the dust outlet is located at immediately below the oscillating plate.
Specifically, each powder collection device include returning charge elephant trunk and ash cellar, the dust outlet with and its
It is connected by the returning charge elephant trunk between the corresponding ash cellar.
Specifically, the ash cellar is in funnel-form, drain hole is offered at the low level of the ash cellar, and in the ash cellar
It is additionally provided with the pneumatic discharge valve for opening and closing the drain hole.
Further, the block collection device includes summarizing bucket and feeding chute, and each block outlet is all connected with
Summarize bucket to described, summarizes bucket and the converter described in the feeding chute conducting.
Further, the block collection device further includes at least one correspondingly with each vibration screening device
Scale hooper, the material of each block outlet, which passes through, to summarize described in corresponding scale hooper entrance in bucket, each described
Be both provided with pressure sensor in scale hooper, and each scale hooper and it is described summarize controlled by pneumatic gate valve between bucket it is logical
It is disconnected.
The embodiment of the present invention also provides a kind of steelmaking equipment, including converter and above-mentioned coverter pig bulk material sieve online
System, the block collection device are connected to the converter.
The embodiment of the present invention also provides a kind of online method for sieving of coverter pig bulk material, using vibration screening device by object
Material is sized in block collection device and powder collection device, including following operating procedure：
Material is placed in high-order feed bin, is postponed starting the vibration screening, the material in the feed bin
It is sieved into the vibration screening device；
Lump material is entered the weighing of the block collection device by the block outlet of the vibration screening device after screening
In bucket, the powder material after screening is collected by the dust outlet of the vibration screening device to the ash cellar of the powder collection device
It is interior；
Before vibrosieve, the load capacity of the scale hooper is set, and when the lump material collected in it reaches setting
When value, the scale hooper is opened, and interior lump material summarizes into the block collection device in bucket；
When converter needs charging, the bucket that summarizes is opened, and interior lump material enters in the converter；
After the powder material in the ash cellar reaches the upper limit, opens the ash cellar and recycle its interior powder material transportation.
Further, the vibration screening is set to frequency control, is set when the weight of material in the scale hooper is much smaller than
When definite value, the vibration screening device uses the feed that shakes by force, and when the weight of material in the scale hooper is close to setting value, institute
It states vibration screening device and uses the weak feed that shakes.
Specifically, the vibration screening device vibration screening material, and size is less than 5mm and is collected into the powder
Device is collected, and size is that 5-50mm enters through the block collection device in the converter.
The invention has the advantages that：
In the present invention, the number of vibration screening device is corresponding with the type of the bulk material of coverter pig, by each material
It is placed in corresponding feed bin, after vibration screening device startup, the material in feed bin enters in corresponding vibration screening device, leads to
The material of vibrosieve different-grain diameter is crossed, powder material is recycled by corresponding powder collection device, and lump material
Then enter in block collection device, then is imported in converter by block collection device.To this before material enters converter to its by
It is sieved according to grain size, so as to avoid powder from entering in converter, not only ensures material utilization, reduce the waste of powder material,
And dust pelletizing system will not be had an impact.In method for sieving provided by the invention, lump material is introduced into title after isolation
It is counted weight in batch box, and enters after weight reaches setting value and summarize in bucket, it, can be by various materials point for this form
It imports and summarizes in bucket after not weighed by corresponding scale hooper, then imported in converter by summarizing bucket collective, operation is very easy.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the online screening system of coverter pig bulk material provided in an embodiment of the present invention；
Fig. 2 is the operating diagram of the online screening system of coverter pig bulk material of Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of online screening system of coverter pig bulk material, including extremely
A few feed bin 1, at least one vibration screening device 2, block collection device 4 and at least one powder collection device 3, wherein
It is corresponded between 3 three of feed bin 1, vibration screening device 2 and powder collection device, each feed bin 1 is in a high position, main to use
In storage material, corresponding vibration screening device 2 is then disposed below, and vibration screening device 2 is mountable to the height of converter
On layer framework platform, the discharge port 11 of usual feed bin 1 and the docking of the feed inlet 211 of corresponding vibration screening device 2, in material
Can be entered in vibration screening device 2 by discharge port 11 and feed inlet 211, vibration screening device 2 also have dust outlet 212 with
And block outlet 213, both it is located at the lower section of feed inlet 211, powder collection device 3 is connected to corresponding vibration screening device
2 dust outlet 212, and the block of each vibration screening device 2 outlet 213 is then connected to block collection device 4, for block
Collection device 4 is additionally coupled to converter (not shown).In the present embodiment, feed bin 1, vibration screening device 2, powder collection device
3 and block collection device 4 all have certain position relationship, the discharge port 11 of feed bin 1 is located at the low level of feed bin 1 and it is located at
211 top of feed inlet of corresponding vibration screening device 2, after the discharge port 11 of feed bin 1 is opened, its interior material under the effect of gravity
It can certainly be advanced into vibration screening device 2, accordingly, powder collection device 3 is located at the lower section of corresponding dust outlet 212, block
Collection device 4 is then located at 213 lower section of block outlet of each vibration screening device 2, to this when material enters in vibration screening device 2
Afterwards, it is sieved according to material particular diameter by vibrating so that the powder material after screening is advanced into powder certainly under the effect of gravity
In collection device 3, and lump material also enters in block collection device 4 under the effect of gravity after screening, and is then received through block
Acquisition means 4 can enter in converter, for being then arranged side by side between powder collection device 3 and block collection device 4.The present embodiment
In, the number of feed bin 1, vibration screening device 2 and powder collection device 3 can be corresponding with the type of coverter pig bulk material,
Each feed bin 1 stores a wherein material, and vibration screening device 2 sieves corresponding material, and is in block-like various materials after sieving
It imports in block collection device 4, is imported in converter by the block collection device 4 is unified, it is very convenient.Sieve using the present invention
Subsystem so that the powder material entered in converter is considerably less, is not only able to that powder material is avoided to produce converter dedusting line
Raw adverse effect, and powder material can be collected, the utilization rate of material is improved, steel-making cost is substantially reduced, such as
By taking one of which material-lime as an example, it is assumed that content of powder is 10% calculating in steel-making lime, and the converter smelting period is 36min,
It is about 200t to take around the lime of consumption daily, daily i.e. recyclable lime powder 20t, annual recyclable lime powder
6000t is calculated with 300 yuan/t of the lime market price, and economic benefit 1,800,000 can be generated by being often only recycling lime powder one
Member can also be directly used in iron melt desulfurizing agent preparation for the lime powder of collection or is prepared by sintering mine additive, generate more
Big economic benefit.In addition screening system of the invention sieves material online, and the material after screening directly carries out converter
Interior, intermediate without link is had bad luck, material blanking is interference-free, can match converter producing rhythm, is in this vibration screening device 2
The end of material transportation process can prevent material separating twice after vibrosieve, ensure to greatest extent into the complete of stove material
Property.
Referring to Fig. 1, the structure of vibration screening device 2 is refined, each vibration screening device 2 includes a cavity 21, into
Material mouth 211, dust outlet 212 and block outlet 213 are opened on the cavity 21, there are one 21 tilted settings of cavity
Oscillating plate 22, the oscillating plate 22 are tilted down along the direction of feed inlet 211 to block outlet 213, and dust outlet 212 is located at vibration
The underface of plate 22.In the present embodiment, oscillating plate 22 is orderly vibrated under external force, and the material in feed bin 1 is by feeding
Mouth 211 is directly fallen to after entering in cavity 21 on oscillating plate 22, passes through the vibrosieve function of oscillating plate 22 so that in it
Powder material passes through the filter opening on oscillating plate 22 to be fallen in powder collection device 3 through dust outlet 212, and larger block
Material then moves down along oscillating plate 22 and enters in block collection device 4 through block outlet 213.This is obliquely installed by this
Oscillating plate 22 can not only form the screening of material, while not formed to powder material and block by other devices
The collection of material.
Refine powder collection device 3 structure, each powder collection device 3 include returning charge elephant trunk 31 and ash cellar 32,
Dust outlet 212 is connected between its corresponding ash cellar 32 by returning charge elephant trunk 31.In the present embodiment, vibration screening device 2
The powder material that is discharged of dust outlet 212 deposited in ash cellar 32 via corresponding returning charge elephant trunk 31, i.e., ash cellar 32 is for prestoring
Powder material after being sieved by vibration screening device 2, whole is in funnel-form, i.e., vertically, the size of 32 upper end of ash cellar
The larger powder material facilitated in returning charge elephant trunk 31 enters in ash cellar 32, and the size of its lower end is then smaller, can be put offering
Material mouth 321, the powder material being piled up in ash cellar 32 are fallen along drain hole 321 under the effect of gravity, to this in the drain hole 321
Place is provided with pneumatic discharge valve 33, while level-sensing device (not shown) is provided in ash cellar 32, pneumatically unloads under normal circumstances
Expect that valve 33 closes drain hole 321, then the powder material after sieving is piled up in ash cellar 32, and when in level-sensing device detection ash cellar 32
Powder material when reaching setting value, then transport vehicle can be travelled to the underface of drain hole 321, pneumatic discharge valve 33 is opened
Drain hole 321, interior powder material, which is fallen in transport vehicle, to be transported.
The structure of block collection device 4 is refined, block collection device 4 includes summarizing bucket 41 and feeding chute 42, is respectively shaken
The lump material of 213 discharge of block outlet of dynamic screening plant 2, which comes together in, to summarize in bucket 41, and feeding chute 42 is then that connection converges
Total bucket 41 and converter, summarizing the lump material in bucket 41 can enter through feeding chute 42 in converter.In the present embodiment, summarize bucket 41
It can be one, i.e., one is summarized bucket 41 and can correspond to multiple vibration screening devices 2, and the various materials of coverter pig are through respectively corresponding
Vibration screening device 2 act on after come together in and summarize in bucket 41, in the bottom setting for summarizing bucket 41 there are one pneumatic gate valve 43,
The folding for summarizing bucket 41 is controlled by the pneumatic gate valve 43, i.e., the lump material after sieving under normal circumstances can be piled up in remittance
In total bucket 41, and when converter needs to add materials, then the pneumatic gate valve 43 can be opened, the block accumulated in bucket 41 is summarized
Material enters through feeding chute 42 in converter.
Optimize above-described embodiment, block collection device 4 further includes having at least one scale hooper 44, each scale hooper 44 with respectively shake
Between dynamic screening plant 2 corresponds, and each scale hooper 44 is respectively positioned on corresponding vibration screening device 2 and summarizes bucket 41, then
The lump material of 213 discharge of block outlet of each vibration screening device 2 is introduced into corresponding scale hooper 44, then by the weighing
Bucket 44 enters and summarizes bucket 41, and pressure sensor (not shown) is both provided in each scale hooper 44, passes through the pressure sensor
It can measure the weight of the lump material in corresponding scale hooper 44, and be also both provided between bucket 41 in each scale hooper 44 and summarizing
Pneumatic gate valve 43 controls break-make between the two.In the present invention, in steel-making, answered between the various bulk materials of coverter pig
With certain ratio, i.e., should be mixed according to a certain percentage in the various lump materials summarized in bucket 41, in this present embodiment,
Scale hooper 44 is had additional between bucket 41 and each vibration screening device 2 summarizing, i.e., each material is through corresponding vibration
Lump material is introduced into corresponding scale hooper 44 after screening plant 2 screens, and scale hooper 44 and is summarized pneumatic slotting between bucket 41
Plate valve 43 is closed, and weight parameter is previously set in scale hooper 44, and when the weight in it reaches setting value, opens the scale hooper 44
Pneumatic gate valve 43, combined weight require lump material enter summarizes bucket 41 in, and so on various materials reach weight
Amount comes together in after requiring to summarize in bucket 41, then summarizes the matching ratio that the material in bucket 41 meets coverter pig material, and needing
When adding materials into converter, the pneumatic gate valve 43 for summarizing bucket 41 is opened, the interior lump material mixed is slipped through charging
Pipe 42 enters in converter.In addition, for this working method of screening system, screening system is additionally provided with control assembly (in figure
It is not shown), which can directly control the vibration frequency of each vibration screening device 2, and by each pneumatic discharge valve 33, each
Pneumatic gate valve 43, the level-sensing device in each ash cellar 32 and the pressure sensor in each scale hooper 44 are electrically connected to the control group
Part, so that the equal automatic work of each component of screening system, i.e., after being added with various materials in feed bin 1, for subsequent
Vibrosieve acts and the opening action of each valve is automatic progress, and the degree of automation is very high, substantially reduces operator
Member's workload, and control assembly is used, operating personnel can be not only easy to operate with remote control, and can effectively improve behaviour
Make personnel safety factor.
Referring again to Fig. 1 and Fig. 2, the embodiment of the present invention also provides a kind of steelmaking equipment, including converter and above-mentioned
Screening system, the block collection device 4 of screening system are connected to the material inlet of the converter.In the present embodiment, steelmaking equipment is straight
It scoops out with above-mentioned screening system, so that being substantially reduced into the material powders content used in converter, simultaneously also
It can play the role of collecting powder material, not only effectively reduce steel-making cost, but also powder material can be reduced to dedusting
The influence of system.
The embodiment of the present invention also provides a kind of online method for sieving of coverter pig bulk material, will using vibration screening device 2
In material screening to block collection device 4 and powder collection device 3 in feed bin 1, i.e., turned using the screening of above-mentioned screening system
Article for furnace material specifically includes following operating procedure：
First various materials are placed in corresponding high hopper 1, and after Vibration on Start-up screening plant 2, in corresponding feed bin 1
Material be directly entered in the vibration screening device 2 and sieved, the discharge port 11 and corresponding vibration screening device 2 of feed bin 1 it
Between be coordinated signals, i.e., vibration screening device 2 startup after, the discharge port 11 of feed bin 1 can just be opened so that enter vibrosieve
Material in device 2 can carry out vibrosieve；
Material is after vibrosieve, and wherein lump material can be exported 213 into block by the block of vibration screening device 2
In corresponding with the vibration screening device 2 scale hooper of collection device 4 44, and powder material therein is then by vibration screening device 2
Dust outlet 212 collect in the ash cellar 32 of powder collection device 3, each vibration screening device 2 all has certain classifying screen
Precision is selected, is required that 5mm can be set as according to smelting process, i.e. material size size is defined as powder less than 5mm, through vibration
Enter in powder collection device 3 after screening and is collected, and when material size is more than 5mm, then it is defined as lump material,
Certainly it is not answered also excessive, can is 5-50mm by lump material dimension limitation, be entered through block collection device 4 after vibrosieve
In converter；
Before vibrosieve, the weighing weight in scale hooper 44 should be also preset, and when the lump material collected in it
When reaching setting, vibration screening device 2 is stopped, and the discharge port 11 of feed bin 1 is closed, while also by the pneumatic of the scale hooper 44
Gate valve 43 is opened, in the lump material accumulated can enter the summarizing in bucket 41 of block collection device 4, and in scale hooper 44
Lump material emptying after close corresponding pneumatic gate valve 43；It is assumed that material is active lime, the converter smelting life of 1 100t
Production, 1t steel need to consume the active lime of 50kg, need to add 5t active limes into converter each time to this, to taking on service jobs
Property lime the weight setpoint value of pressure sensor of scale hooper 44 be 5t, and the active lime weight in the scale hooper 44 is 5t
When, corresponding vibration screening device 2 is closed, whole process is about 2-4min, and in the whole process, vibration screening device
2 use frequency control, and when the lump material in scale hooper 44 is significantly less weight than setting value, vibration frequency is larger, vibrating screen
Separating device 2 is fed using pattern of shaking by force into scale hooper 44, and delivery rate is accelerated, and when weight (is usually set close to setting value
Definite value 90%) when, vibration frequency reduces, which uses weak pattern of shaking, and it is more than setting to avoid lump material weight
Value can be 10 for the ratio between strong vibration frequency and weak vibration frequency:1, i.e., the weak delivery rate of shaking of 10 times of delivery rate of shaking by force；
When converter needs charging, then the pneumatic gate valve 43 that summarize bucket 41 can be opened, summarize each of the interior accumulation of bucket 41
Kind lump material enters through feeding chute 42 in converter, accordingly, when the level-sensing device in ash cellar 32 detects its interior powder material
When height reaches setting value, then also the pneumatic discharge valve 33 of ash cellar 32 is opened, the powder that can will be accumulated in it using transport vehicle
Material is transported.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of online screening system of coverter pig bulk material, it is characterised in that：Include in high-order at least one feed bin, with
Each feed bin corresponds and at least one vibration screening device below the corresponding feed bin, is connected to converter material mouth
Block collection device and collect powder material and at least one powder is received correspondingly with each vibration screening device
Acquisition means, each vibration screening device all have feed inlet, dust outlet and block outlet, the dust outlet and
The block outlet is respectively positioned below the feed inlet, and each feed inlet docks the discharging of the corresponding feed bin
Mouthful, each dust outlet is connected to the corresponding powder collection device, and each block outlet is connected to institute
Block collection device is stated, the block collection device includes summarizing bucket and feeding chute, and each block outlet is connected to
It is described to summarize bucket, summarize bucket and the converter described in the feeding chute conducting, the block collection device further include with respectively
At least one scale hooper, the material that each block exports pass through corresponding the vibration screening device correspondingly
The scale hooper summarizes described in entering in bucket, is both provided with pressure sensor in each scale hooper, and each scale hooper with
It is described summarize bucket between by pneumatic gate valve control break-make, charging when, the vibration screening device is stopped, the material
The discharge port in storehouse is closed, while also opening the pneumatic gate valve of the scale hooper, and the interior lump material accumulated can enter institute
Summarizing in bucket for block collection device is stated, and corresponding pneumatic plate is closed after the lump material emptying in the scale hooper
Valve.
2. the online screening system of coverter pig bulk material as described in claim 1, it is characterised in that：Each vibrosieve
Device includes cavity, and the feed inlet, the dust outlet and block outlet are respectively positioned on the cavity, in described
Cavity is tilted to be provided with the oscillating plate extended to block outlet along the feed inlet, and the dust outlet is located at described shake
Immediately below movable plate.
3. the online screening system of coverter pig bulk material as described in claim 1, it is characterised in that：Each powder is collected
Device includes returning charge elephant trunk and ash cellar, and the dust outlet is slipped between its corresponding described ash cellar by the returning charge
Pipe connects.
4. the online screening system of coverter pig bulk material as claimed in claim 3, it is characterised in that：The ash cellar is in funnel
Shape offers drain hole at the low level of the ash cellar, and opens and closes the pneumatic of the drain hole in being additionally provided in the ash cellar
Discharge valve.
5. a kind of steelmaking equipment, including converter, it is characterised in that：It further include coverter pig according to any one of claims 1-4
The online screening system of bulk material, the block collection device are connected to the converter.
6. a kind of online method for sieving of coverter pig bulk material, using vibration screening device by material screening to block collection device
And in powder collection device, which is characterized in that including following operating procedure：
Material is placed in high-order feed bin, is postponed starting the vibration screening, the material in the feed bin enters
The vibration screening device is sieved；
Lump material is entered by the block outlet of the vibration screening device in the scale hooper of the block collection device after screening,
Powder material after screening is collected by the dust outlet of the vibration screening device to the ash cellar of the powder collection device；
Before vibrosieve, the load capacity of the scale hooper is set, and when the lump material collected in it reaches setting value,
The scale hooper is opened, and interior lump material summarizes into the block collection device in bucket, specifically, the vibrosieve
Device is stopped, and the discharge port of the feed bin is closed, while also opening the pneumatic gate valve of the scale hooper, interior accumulation
Lump material can enter the block collection device and summarizing in bucket, and closed after the lump material emptying in the scale hooper
Close corresponding pneumatic gate valve；
When converter needs charging, the bucket that summarizes is opened, and interior lump material enters in the converter；
After the powder material in the ash cellar reaches the upper limit, opens the ash cellar and recycle its interior powder material transportation.
7. the online method for sieving of coverter pig bulk material as claimed in claim 6, it is characterised in that：The vibration screening device
For frequency control, when the weight of material in the scale hooper is much smaller than setting value, the vibration screening device using shake by force to
Material, and when the weight of material in the scale hooper is close to setting value, the vibration screening device uses the weak feed that shakes.
8. the online method for sieving of coverter pig bulk material as claimed in claim 6, it is characterised in that：The vibration screening device
Vibration screening material, and size is less than 5mm and is collected into the powder collection device, size is described in 5-50mm warps
Block collection device enters in the converter.
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| 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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| 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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| CN105256099B true CN105256099B (en) | 2018-08-17 |
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| 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 |
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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 |
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