CN107185702A - Silica washing screening device and method - Google Patents
Silica washing screening device and method Download PDFInfo
- Publication number
- CN107185702A CN107185702A CN201710513912.2A CN201710513912A CN107185702A CN 107185702 A CN107185702 A CN 107185702A CN 201710513912 A CN201710513912 A CN 201710513912A CN 107185702 A CN107185702 A CN 107185702A
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- CN
- China
- Prior art keywords
- silica
- washing screening
- raw material
- sifting barrel
- screening device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/56—Drum classifiers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/26—Revolving drums with additional axial or radial movement of the drum
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/01—Wet separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Abstract
The present invention relates to ferroalloy production field, a kind of silica washing screening device and method is disclosed.The device includes the charging gear being sequentially arranged, conveying device, washing screening device and deslagging drainage arrangement, washing screening device include can axial rotation for the sifting barrel that is sieved to silica raw material be arranged at the opening of sifting barrel for the shower nozzle that is rinsed to the silica raw material in sifting barrel, aperture area is provided with the periphery wall of sifting barrel, wherein, silica raw material is transported in sifting barrel by charging gear by conveying device, sifting barrel opens shower nozzle while rotation, so that the slag particle and flushing water in silica raw material in sifting barrel are leaked to deslagging drainage arrangement by aperture area.The silica washing screening device of the present invention can be washed and sieved simultaneously to silica raw material, so as to effectively improve the cleannes of raw material and the moderate degree of silica granule, and then improve the stability and smelting quality of ferroalloy production.
Description
Technical field
The present invention relates to ferroalloy production field, and in particular to a kind of silica washing screening device and method.
Background technology
Ferroalloy, which refers to add in molten iron as deoxidier, element additive etc. during steel-making, makes steel possess certain characteristic or reach
To a kind of product of certain requirement.In recent years, with the prosperity of the ferroalloy industry, the raw material (example before being produced to ferroalloy in the industry
Such as silica) prepare also increasingly to pay attention to, the quality of raw material turns into the ferroalloy industry steady production, the emphasis side for profit of taping the latent power
To, and reached industry common recognition.
In existing ferroalloy production process, raw material is often directly entered industrial production dispensing without washing or screening
System, by taking silica as an example, the silica without washing, screening is directly entered industrial silicon production feed proportioning system, so that by a large amount of impurity
And big granularity and cross small grain size silica material and bring mineral hot furnace into and smelted, severely impacted the stability of mineral hot furnace production with
The quality of industrial silicon product.Although however, in ferroalloy production process technical staff it is conceivable that silica is washed or
Screening, but can only also expect only washing silica using corresponding device or only sieving silica, and can not be same
When silica is washed and sieved.In addition, existing corresponding device nearly all exists when silica is washed or sieved
The problems such as different degrees of water waste problem and difficult deslagging.
In view of in place of the deficiencies in the prior art, the highly desirable one kind of seeking of those skilled in the art can be to originals such as silicas
The device and method that material is washed and sieved simultaneously, so that the cleannes of raw material and the moderate degree of silica granule are effectively improved,
And then improve the stability and smelting quality of ferroalloy production.
The content of the invention
In order to solve above-mentioned all or part of problem, the invention provides a kind of silica washing screening device, including successively
Charging gear, conveying device, washing screening device and the deslagging drainage arrangement of arrangement, washing screening device include axially turning
Dynamic sifting barrel for being sieved to silica raw material and be arranged at the opening of sifting barrel in sifting barrel
The shower nozzle that is rinsed of silica raw material, be provided with aperture area on the periphery wall of sifting barrel, wherein, charging gear, which passes through, conveys dress
Put and silica raw material is transported in sifting barrel, sifting barrel opens shower nozzle while rotation, so that the silica raw material in sifting barrel
In slag particle and flushing water leaked by aperture area to deslagging drainage arrangement.
Further, the distance between the opening of sifting barrel and aperture area are 1/3rd of the axial length of sifting barrel,
And the scope of the diameter of the perforate in aperture area is less than or equal to 100mm.
Further, washing screening device also includes flusher when be selectively turned on and off zero, is rinsed when zero
Device is connected in parallel with shower nozzle by inlet pipeline, and inlet pipeline is connected with the draw water pipeline of deslagging drainage arrangement, and
The delivery port of flusher is relative with the entrance of deslagging drainage arrangement when zero.
Further, charging gear includes hopper and the batcher that is arranged on below hopper, the outlet of batcher with
The entrance of conveying device is connected, wherein, the porch of hopper is provided with grate, and the gap of grate is more than or equal to 250mm.It is preferred that
Ground, batcher has dosing function, can be oscillating feeder or apron feeder.
Further, conveying device is ribbon conveyer, and the conveyer belt of ribbon conveyer is in the head end from conveyer belt to biography
The side of the end of band is sent to be inclined upwardly setting, to cause the end of conveyer belt to be higher than the head end of conveyer belt, wherein, the head of conveyer belt
End is arranged on the lower section of batcher, and the end of conveyer belt is provided with elephant trunk, and the outlet of elephant trunk is connected with the entrance of sifting barrel.It is preferred that
The angle of ground, the axis of elephant trunk and the axis of sifting barrel is more than 90 ° and is less than 180 °.
Further, silica washing screening device also includes finished conveying device, and finished conveying device includes being arranged on sieve
Divide the discharge bucket in the exit of cylinder, and be arranged on the conveyer in the exit of discharge bucket.Preferably, discharge bucket is band liner steel
Structural member, liner material quality can be for wear-resisting butt welding liner plate, rubber ceramic composite lining board or with wear-resisting, the resistance to liner plate for pounding function；
Conveyer is rubber conveyer.
Further, deslagging drainage arrangement is connected including the gutter below the aperture area of sifting barrel, with gutter
Sedimentation basin, the clear water reserviors that are connected with sedimentation basin, and the pumping station being connected with clear water reserviors.
Further, gutter is inclined upwardly setting in the side of the entrance from gutter to draining ditch outlet, to cause
The entrance in gutter is higher than draining ditch outlet, wherein, the angle of gutter and horizontal plane is 1.5 ° to 4.5 °, and gutter
Depth be less than or equal to 1m.
Further, sedimentation basin includes sediment area and the advection settling zone being sequentially connected, and the bottom surface in sediment area is including close
First plane of the porch in sediment area and be connected with the first plane and towards sediment area outlet direction extension it is first oblique
Face, wherein, the elongated end on the first inclined-plane is higher than the first plane, and the first inclined-plane and the angle of the first plane are 150 ° to 180 °.
Further, clear water reserviors include the clear water reserviors and secondary clear water reserviors being sequentially connected, the bottom surface of a clear water reserviors
Higher than the bottom surface of secondary clear water reserviors, and a clear water reserviors bottom surface include close to the porch of a clear water reserviors the second plane and
Be connected with the second plane and towards the outlet of a clear water reserviors direction extend the second inclined-plane, wherein, the extension on the second inclined-plane
End is higher than the second plane, and the second inclined-plane and the angle of the second plane are 150 ° to 180 °.
Further, gutter includes two outlets being set up in parallel, and two outlets in gutter are connected to precipitation
Pond, two sedimentation basins be arranged in parallel, and clear water reserviors are located between two sedimentation basins, wherein, discharged by two outlets in gutter
Water can enter clear water reserviors after corresponding sedimentation basin simultaneously.
Further, pumping station includes absorbing well, absorption well and elevator pump, and secondary clear water reserviors, absorbing well, absorption well and elevator pump are sequentially connected,
Wherein, absorbing well, absorption well draws the water in secondary clear water reserviors and is pumped to shower nozzle by the draw water pipeline of deslagging drainage arrangement by elevator pump
Or flusher when zero.
The invention also provides a kind of side for applying above-mentioned silica washing screening device to carry out washing screening to silica raw material
Method, comprises the following steps：
Step one：Silica raw material is once sieved by the hopper of charging gear；
Step 2：Silica raw material after once sieving is delivered to washing screening device with former to the silica by conveying device
Material carries out regrading and washing；
Step 3：The silica raw material being retained in washing screening device and by washing is transported by finished conveying device
To required station, and the silica slag particle in washing sieve separating device and flushing water are spilt into deslagging drainage arrangement to reclaim.
Further, in step 2, the quality and silica of the water in the shower nozzle penetrating sifting barrel of washing screening device are former
The mass ratio of material is 0.5 to 2, and the pressure of the water in shower nozzle penetrating sifting barrel is 0.25 to 0.6MPa.
Further, in step 3, including to spill the silica raw material in washing sieve separating device behind gutter
Precipitated, and continued to spilling the flushing water in washing sieve separating device and sequentially passing through after gutter and sedimentation basin in settling zone
Natural subsidence is carried out in clear water reserviors.
Further, in step 3, in addition to the water that absorbing well, absorption well is reclaimed by elevator pump when being pumped to shower nozzle or zero
Flusher.
Further, the method for washing screening also includes：By flusher when zero to entering the silica slag in gutter
Grain is rinsed to keep the unobstructed of gutter.
Further, the method for washing screening also includes：It is fixed by batcher to carrying out the silica raw material after once sieving
Measure to conveying device.
Further, the method for washing screening also includes：Supplement water is filled with to the inlet pipeline of shower nozzle.
When in use, charging gear gives silica raw material to conveying device, conveying to the silica washing screening device of the present invention
Device sends into silica raw material in sifting barrel, due to being provided with aperture area, and the porch of sifting barrel on the periphery wall of sifting barrel
Shower nozzle, therefore the axial rotation with sifting barrel itself and the unlatching of shower nozzle are provided with, on the one hand can be driven inside sifting barrel
Silica raw material is rotated, and is come so that the silica granule that diameter in silica raw material is less than to the diameter of the perforate in aperture area is screened out,
The water that another aspect shower nozzle sprays can be rinsed to the silica raw material retained in sifting barrel, and the silica dropped out from aperture area
Particle is then together fallen into deslagging drainage arrangement with flushing water, by deslagging drainage arrangement to silica granule therein and flushing water
Reclaimed respectively.The silica washing screening device of the present invention realizes to silica raw material the work(while washed and sieved
Can, so as to be effectively guaranteed the cleanliness factor of silica raw material and the moderate degree of silica granule, and then it is the life of follow-up high ferroalloy
The stability and smelting quality of production provide favourable guarantee.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described.In all of the figs, similar element
Or part is general by similar reference mark.In accompanying drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 shows the structural representation of the silica washing screening device according to the present invention；
Fig. 2 is the top view of the first embodiment of the deslagging drainage arrangement shown in Fig. 1；
Fig. 3 is the structural representation of the detritus tank described in Fig. 2；
Fig. 4 is the top view of the second embodiment of the deslagging drainage arrangement shown in Fig. 1；
Fig. 5 is the side view of the structure in the gutter shown in Fig. 1；
Fig. 6 is the flow chart of the silica washing screening method according to the present invention.
Embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.Following examples are only used for
Clearly illustrate technical scheme, therefore be only used as example, and the protection model of the present invention can not be limited with this
Enclose.
Fig. 1 is the structural representation of the silica washing screening device according to the present invention.The silica washing screening device includes
Charging gear 1, conveying device 2, washing screening device 3 and the deslagging drainage arrangement 5 being sequentially arranged, washing screening device 3 include
Can axial rotation be for the sifting barrel 31 that is sieved to silica raw material and is arranged at the opening of sifting barrel 31
For the shower nozzle 32 being rinsed to the silica raw material in sifting barrel 31, aperture area is provided with (such as on the periphery wall of sifting barrel 31
Shown in grid in Fig. 1 on sifting barrel 31), wherein, silica raw material is transported to sifting barrel by charging gear 1 by conveying device 2
In 31, shower nozzle 32 is opened while sifting barrel 31 is rotated, so that slag particle and flushing water in the silica raw material in sifting barrel 31
Leaked by aperture area to deslagging drainage arrangement 5.
When in use, charging gear 1 gives silica raw material to conveying device 2 to the silica washing screening device of the present invention, defeated
Device 2 is sent to send into silica raw material in sifting barrel 31, due to being provided with aperture area, and sifting barrel 31 on the periphery wall of sifting barrel 31
Porch be provided with shower nozzle 32, therefore the axial rotation with sifting barrel 31 itself and the unlatching of shower nozzle 32, on the one hand can band
Silica raw material inside dynamic sifting barrel 31 is rotated, so that diameter in silica raw material to be less than to the silicon of the diameter of the perforate in aperture area
Stone particle screening is come out, and the water that another aspect shower nozzle 32 sprays can be rinsed to the silica raw material retained in sifting barrel 31,
And the silica granule dropped out from aperture area and flushing water are then together fallen into deslagging drainage arrangement 5, by 5 pairs of deslagging drainage arrangement
Silica granule and flushing water therein are reclaimed respectively.The silica washing screening device of the present invention realizes same to silica raw material
The function that Shi Jinhang is washed and sieved, so as to be effectively guaranteed the cleanliness factor of silica raw material and the moderate degree of silica granule, enters
And provide favourable guarantee for the stability and smelting quality of the production of follow-up high ferroalloy.
It should be noted that the silica washing screening device of the present invention not only can be only used for washing to silica raw material and
Screening, on the basis of the operation principle of silica washing screening device of the present invention is met, can also come to it according to actual needs
Its ore is washed and sieved.
Preferably, as shown in figure 1, the distance between the opening of sifting barrel 31 and aperture area (L1) are the axial direction of sifting barrel 31
/ 3rd of length (L1+L2), and the scope of the diameter of perforate in aperture area is less than or equal to 100mm.Pass through the setting, sieve
It is that silica raw material provides certain closing space before aperture area is entered to divide the distance between opening and the aperture area of cylinder 31 (L1),
So as on the one hand extend the washing time to silica raw material so that the flushing of silica raw material is more abundant, is on the other hand conducive to
Less silica granule in silica raw material is developed from larger silica raw material, so as to be conducive to silica granule more rapidly
Ground enters aperture area to be sized in deslagging drainage arrangement 5.It is worth noting that, the open region of sifting barrel 31 has at least needed
It is entirely corresponding with deslagging drainage arrangement 5, so that the silica granule and flushing water that are spilt by aperture area can be completely into rows
Slag drainage arrangement 5, to avoid the environment to surrounding from polluting.
According to the present invention, as shown in figure 1, washing screening device 5 also includes rinsing when be selectively turned on and off zero
Device 33, flusher 33 is connected in parallel with shower nozzle 32 by inlet pipeline when zero, inlet pipeline and deslagging drainage arrangement 5
Draw water pipeline is connected, and the delivery port of flusher 33 is relative with the entrance of deslagging drainage arrangement 5 when zero.That is,
Flusher 33 and shower nozzle 32 are used in conjunction with same inlet pipeline when zero, and the water that flusher 33 sprays with shower nozzle 32 when zero
It can be recycled by flowing into the flushing water in deslagging drainage arrangement 5 through natural sedimentation or water process, flusher when zero
33 optionally open to carry out auxiliary flushing to deslagging drainage arrangement 5, so that it is guaranteed that the unobstructed nothing of the deslagging of deslagging drainage arrangement 5
Block.Preferably, zero when flusher 33 optionally open can by corresponding inlet pipeline set switch valve
It can be achieved.
According to the present invention, as shown in figure 1, charging gear 1 includes hopper 11 and is arranged on the feed of the lower section of hopper 11
Machine 12, the outlet of batcher 12 is connected with the entrance of conveying device 2, wherein, the porch of hopper 11 is provided with grate 111,
The gap of grate 111 is more than or equal to 250mm.Preferably, batcher 12 has dosing function, can for oscillating feeder or
Apron feeder.Being provided for of the grate 111 is tentatively sieved to silica raw material, with reference to the aperture area of above-mentioned sifting barrel 31
Setting, when the gap of grate 111 is 250mm, can prevent the silica raw material more than 250mm from entering charging gear 1, and sifting barrel
When the opening diameter of 31 aperture area is 100mm, it can will enter silicon of the diameter less than 100mm in the silica raw material in sifting barrel 31
Stone particle screening goes out, so that only retain the silica raw material that diameter range is 100mm to 250mm in sifting barrel, the diameter range
Silica raw material can increase the stability and smelting quality of smelting in the production of follow-up high ferroalloy.Certainly, silica granule
Diameter range can also carry out specifically chosen according to specific needs.
As shown in figure 1, the conveying device 2 of the present invention is ribbon conveyer, the conveyer belt 21 of ribbon conveyer is being transmitted certainly
It is inclined upwardly setting with 21 head end to the side of the end of conveyer belt 21, to cause the end of conveyer belt 21 higher than conveyer belt 21
Head end, wherein, the head end of conveyer belt 21 is arranged on the lower section of batcher 12, and the end of conveyer belt 21 is provided with elephant trunk 22, elephant trunk
22 outlet is connected with the entrance of sifting barrel 31.Preferably, the angle of the axis of elephant trunk 22 and the axis of sifting barrel 31 is more than 90 °
Less than 180 °.It is further preferred that the angle of the axis of elephant trunk 22 and the axis of sifting barrel 31 is 135 °.By the setting, pass
Send band 21 that silica raw material is transported into eminence, sifting barrel 31 is located relatively at lower, and elephant trunk 22 is by conveyer belt 21 and sifting barrel 31
Entrance connection and elephant trunk 22 and sifting barrel are in a certain angle so that silica raw material slowly can in an orderly manner enter by self gravitation
Enter sifting barrel 31.
According to the present invention, as shown in figure 1, silica washing screening device also includes finished conveying device 4, finished conveying device
4 include being arranged on the discharge bucket 41 in the exit of sifting barrel 31, and are arranged on the conveyer 42 in the exit of discharge bucket 41.It is excellent
Selection of land, discharge bucket 41 is band liner steel structural member, and liner material quality can be wear-resisting butt welding liner plate, rubber ceramic composite lining board or tool
There is wear-resisting, the resistance to liner plate for pounding function；Conveyer 42 is preferably rubber conveyer.Silica after screened cylinder 31 is sieved and washed is former
Material can be transported to required station by finished conveying device 4.
With reference to shown in Fig. 1 and Fig. 2, deslagging drainage arrangement 5 include positioned at sifting barrel 31 aperture area below gutter 51,
The sedimentation basin 52 being connected with gutter 51, the clear water reserviors 53 being connected with sedimentation basin 52, and the pumping station being connected with clear water reserviors 53
54.The silica granule and flushing water spilt by aperture area is precipitated through gutter 51 into sedimentation basin 52, wherein larger silicon
Stone particle is precipitated completely in sedimentation basin 52, and with the natural flowing of flushing water, smaller silica granule and native stone in flushing water
Further precipitated in clear water reserviors 53 Deng particle, so that the water more cleaned in clear water reserviors 53.This is more cleaned
Water can be pretreated when recirculating back to shower nozzle 32 or zero in flusher 33, can also use it for anything else.And in sedimentation basin 52
In the silica granule that precipitates can be purged by loading machine, because the particle diameter of the silica granule is smaller, therefore can be used to
Pave the way.
It is preferably carried out at one in mode, as shown in figure 5, gutter is in the entrance from gutter to draining ditch outlet
Side be inclined upwardly setting, to cause the entrance in gutter 51 to be higher than the outlet in gutter 51, wherein, gutter 51 and horizontal plane
Angle α be 1.5 ° to 4.5 °, and gutter 51 depth be less than or equal to 1m.The angle be provided with beneficial to silica granule and
Flushing water moves smoothly through gutter 51, and to avoid gutter 51 from blocking, and the depth in gutter 51 can less than or equal to 1m
Staff is facilitated to clear up it.
Fig. 2 is returned to, the direction of wherein arrow shows the flow direction of flushing water.According to the present invention, at one preferably
In embodiment, gutter 51 includes one outlet 51a, and outlet 51a is connected with sedimentation basin 52, and sedimentation basin 52 includes sequentially phase
Sediment area 521 even and advection settling zone 522, with reference to shown in Fig. 5, the bottom surface in sediment area 521 includes the entrance close to sediment area
Place the first plane 5211 and be connected with the first plane 5211 and towards sediment area 521 outlet direction extend the first inclined-plane
5212, wherein, the elongated end on the first inclined-plane 5212 is higher than the first plane 5211, and the first inclined-plane 5212 and the first plane 5211
Angle is 150 ° to 180 °.Preferably, the first inclined-plane 5212 and the angle of the first plane 5211 are 150 °.By the setting, enter
Enter the silica granule in sediment area 521 preferably can be precipitated wherein, to prevent silica granule from traveling further into advection sedimentation
Area 522, while the setting on the first inclined-plane 5212 also helps the cleaning of follow-up loading machine.
As shown in Fig. 2 clear water reserviors 53 include the clear water reserviors 531 and secondary clear water reserviors 532 being sequentially connected, with reference to Fig. 3
Shown, the bottom surfaces of a clear water reserviors 531 is higher than the bottom surface of secondary clear water reserviors 532, and a clear water reserviors 531 bottom surface include it is close
Second plane 5311 of the porch of clear water reserviors 531 and it is connected with the second plane 5311 and towards clear water reserviors 531
Second inclined-plane 5312 of the direction extension of outlet, wherein, the elongated end on the second inclined-plane 5312 is higher than the second plane 5311, and second
The angle of the plane 5311 of inclined-plane 5312 and second is 150 ° to 180 °.By the setting, into the less of clear water reserviors 531
The particle such as silica granule or native stone can be precipitated preferably wherein, to prevent these particles from traveling further into secondary clear water reserviors
532, while the setting on the second inclined-plane 5312 also helps the cleaning of follow-up loading machine.
It is preferably carried out at another in mode, as shown in figure 4, the direction of wherein arrow shows the flowing side of flushing water
To gutter 51 includes two outlet 51a and 51b being set up in parallel, and two outlet 51a and 51b in gutter are connected to
Sedimentation basin 52, two sedimentation basins 52 preferably be arranged in parallel, and clear water reserviors 53 are located between two sedimentation basins 52, wherein, by gutter
The silica granule and flushing water of 51 two outlet 51a and 51b discharges can enter clear water after corresponding sedimentation basin 52 simultaneously
Pond 53.The embodiment is used to allow disconnected downtime to be less than or equal to the situation of 24 hours in silica washing screening device, and works as
Disconnected downtime can use the embodiment or above-mentioned embodiment when being more than 24 hours according to production frequent degree.
In addition, as shown in Figures 2 and 3, pumping station 54 includes absorbing well, absorption well 541 and elevator pump 542, secondary clear water reserviors 531, suction
Well 541 and elevator pump 542 are sequentially connected, wherein, absorbing well, absorption well 541 draws the water in secondary clear water reserviors 532 and by elevator pump 542
Flusher 33 when being pumped to shower nozzle 32 or zero by the draw water pipeline of deslagging drainage arrangement 5.
The invention also provides a kind of side for applying above-mentioned silica washing screening device to carry out washing screening to silica raw material
Method, as shown in figure 1, this method comprises the following steps：Step one：Silica raw material is carried out by the hopper 11 of charging gear 1
Once sieve；Step 2：Silica raw material after once sieving is delivered to washing screening device 3 with to the silicon by conveying device 2
Stone raw material carries out regrading and washing；Step 3：The silica raw material being retained in washing screening device 3 and by washing is led to
Cross finished conveying device 4 and be transported to required station, and spill the silica slag particle in washing sieve separating device 3 and flushing water enters deslagging
Drainage arrangement 5 is to reclaim.
It is of the invention that the method that silica raw material carries out washing screening is entered to silica raw material first with reference to shown in Fig. 1 and Fig. 6
Row is once sieved, so as to prevent that the larger silica of particle enters follow up device in silica raw material, and the step is by loading machine by silicon
Stone raw material is discharged on hopper 11, is given into the silica raw material in hopper 11 by batcher 12 to conveying device 2, conveying
Silica raw material is delivered to a high position by the conveyer belt 21 of device 2, and washing sieve packing is made it into by the Action of Gravity Field of silica itself
3, and progress regrading and washing in the washing screening device 3 are put, so that the less silica of particle in silica is eliminated,
The silica that the particle diameter of follow-up high ferro alloy production will be met is retained in washing screening device 3 and fully washed；Then
Station needed for these silicas are transported to by finished conveying device 4, and spill the silica slag particle in washing sieve separating device 3
Enter deslagging drainage arrangement 5 to reclaim with flushing water.Into the silica granule in deslagging drainage arrangement 5 and flushing water by row
Behind ditch 51, silica granule is precipitated in settling zone 52, and the flushing water spilt in washing sieve separating device 3 sequentially passes through draining
Continue to carry out natural subsidence in the clear water reserviors 53 after ditch 51 and sedimentation basin 52, absorbing well, absorption well 541 can absorb water in clear water reserviors 53 simultaneously
Flusher 33 when being pumped to shower nozzle 32 or zero by elevator pump 542, to realize following certainly for silica washing screening device internal water
Ring.
Preferably, in step 2, in order to more fully be washed to silica raw material, washing screening device 3 can be set
Shower nozzle 32 spray into sifting barrel 31 in water quality and silica raw material mass ratio be 0.5 to 2, and shower nozzle 32 spray into screening
The pressure of water in cylinder 31 is 0.25 to 0.6MPa.
In addition, the method for carrying out washing screening to silica raw material of the present invention also includes：Pass through flusher when zero
33 pairs of silica slag particles entered in gutter 51 are rinsed to keep the unobstructed of gutter 51, and to carrying out after once sieving
Silica raw material given by the way that batcher 12 is quantitative to conveying device 3, with ensure the stationarity of conveying device conveying silica raw material with
And reliability.
In addition, the method for carrying out washing screening to silica raw material of the present invention also includes：To the water inlet pipe of shower nozzle 32
Road is filled with supplement water, to ensure the balance of water circulation in whole silica washing screening device.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In the description of the present application, it is to be understood that term " length ", " on ", " under ", " interior ", " outer ", " axial direction ",
The orientation or position relationship of instructions such as " circumferences " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally
Invention and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying relatively important
Property or the implicit quantity for indicating indicated technical characteristic.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In this application, unless otherwise clearly defined and limited, the term such as term " connected ", " connection " should do broad sense reason
Solution, for example, it may be fixedly connected or be detachably connected, or integrally；Can be joined directly together, can also pass through
Intermediary is indirectly connected to.For the ordinary skill in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the present invention.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme, it all should cover among the claim of the present invention and the scope of specification.Especially, as long as in the absence of knot
Structure conflicts, and the every technical characteristic being previously mentioned in each embodiment can combine in any way.The present invention does not limit to
In specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.
Claims (19)
1. a kind of silica washing screening device, it is characterised in that including the charging gear being sequentially arranged, conveying device, washing sieve
Separating device and deslagging drainage arrangement, the washing screening device include can axial rotation for being sieved to silica raw material
Sifting barrel and be arranged at the opening of the sifting barrel be used for the silica raw material in the sifting barrel is rinsed
Shower nozzle, be provided with aperture area on the periphery wall of the sifting barrel, wherein, charging gear is former by silica by the conveying device
Material is transported in the sifting barrel, and the sifting barrel opens the shower nozzle while rotation, so that the silicon in the sifting barrel
Slag particle and flushing water in stone raw material are leaked to the deslagging drainage arrangement by the aperture area.
2. silica washing screening device according to claim 1, it is characterised in that the opening of the sifting barrel is opened with described
The distance between porose area is 1/3rd of the axial length of the sifting barrel, and the model of the diameter of the perforate in the aperture area
Enclose less than or equal to 100mm.
3. silica washing screening device according to claim 1 or 2, it is characterised in that the washing screening device is also wrapped
Flusher when including selectively be turned on and off zero, flusher is in parallel by inlet pipeline with the shower nozzle when described zero
Together, the inlet pipeline is connected with the draw water pipeline of the deslagging drainage arrangement, and flusher when described zero
Delivery port is relative with the entrance of the deslagging drainage arrangement.
4. silica washing screening device according to claim 1, it is characterised in that the charging gear include hopper and
The batcher below the hopper is arranged on, the outlet of the batcher is connected with the entrance of the conveying device, wherein, institute
The porch for stating hopper is provided with grate, and the gap of the grate is more than or equal to 250mm.
5. silica washing screening device according to claim 4, it is characterised in that the conveying device is belt conveying
Machine, the conveyer belt of the ribbon conveyer is inclined upwardly setting in the side of the end of the head end from conveyer belt to conveyer belt, so that
The end for obtaining the conveyer belt is higher than the head end of the conveyer belt, wherein, the head end of the conveyer belt is arranged on the batcher
Lower section, the end of the conveyer belt is provided with elephant trunk, and the outlet of the elephant trunk is connected with the entrance of the sifting barrel.
6. silica washing screening device according to claim 1, it is characterised in that the silica washing screening device is also wrapped
Finished conveying device is included, the finished conveying device includes the discharge bucket for being arranged on the exit of the sifting barrel, and sets
Conveyer in the exit of the discharge bucket.
7. silica washing screening device according to claim 1, it is characterised in that the deslagging drainage arrangement includes being located at
Gutter below the aperture area of the sifting barrel, the sedimentation basin being connected with the gutter, be connected with the sedimentation basin it is clear
Pond, and the pumping station being connected with the clear water reserviors.
8. silica washing screening device according to claim 7, it is characterised in that the gutter is from the gutter
The side of entrance to the draining ditch outlet be inclined upwardly setting, to cause the entrance in the gutter to be higher than the gutter
Outlet, wherein, the angle of the gutter and horizontal plane is 1.5 ° to 4.5 °, and the depth in the gutter is less than or equal to
1m。
9. the silica washing screening device according to claim 7 or 8, it is characterised in that the sedimentation basin includes sequentially phase
Sediment area even and advection settling zone, the bottom surface in the sediment area include close to the porch in the sediment area the first plane and
Be connected with first plane and towards the sediment area outlet direction extension the first inclined-plane, wherein, described first is oblique
The elongated end in face is higher than first plane, and first inclined-plane and the angle of first plane are 150 ° to 180 °.
10. the silica washing screening device according to claim 7 or 8, it is characterised in that the clear water reserviors include sequentially phase
A clear water reserviors and secondary clear water reserviors even, the bottom surface of a clear water reserviors is higher than the bottom surface of the secondary clear water reserviors, and institute
State a clear water reserviors bottom surface include close to a clear water reserviors porch the second plane and with the second plane phase
Second inclined-plane of the direction extension even and towards the outlet of a clear water reserviors, wherein, the elongated end on second inclined-plane is high
In second plane, and second inclined-plane and the angle of second plane are 150 ° to 180 °.
11. silica washing screening device according to claim 10, it is characterised in that the gutter includes being set up in parallel
Two outlets, two outlets in the gutter are connected to the sedimentation basin, and two sedimentation basins be arranged in parallel, institute
Clear water reserviors are stated between two sedimentation basins, wherein, silica granule and punching by two outlet discharges in the gutter
Wash water can enter the clear water reserviors after the corresponding sedimentation basin simultaneously.
12. silica washing screening device according to claim 10, it is characterised in that the pumping station include absorbing well, absorption well and
Elevator pump, the secondary clear water reserviors, the absorbing well, absorption well and elevator pump are sequentially connected, wherein, the absorbing well, absorption well is drawn described secondary
Water in clear water reserviors is simultaneously pumped to the shower nozzle or described by the elevator pump by the draw water pipeline of the deslagging drainage arrangement
Flusher when zero.
13. a kind of apply the silica washing screening device as any one of claim 1 to 12 to enter water-filling to silica raw material
The silica washing screening method of washing and sieving point, it is characterised in that comprise the following steps：
Step one：Silica raw material is once sieved by the hopper of charging gear；
Step 2：Silica raw material after once sieving is delivered to washing screening device to enter the silica raw material by conveying device
Row regrading and washing；
Step 3：The silica raw material being retained in the washing screening device and by washing is transported by finished conveying device
To required station, and silica slag particle and flushing water in the washing screening device are spilt into deslagging drainage arrangement to return
Receive.
14. silica washing screening method according to claim 13, it is characterised in that in the step 2, washing sieve
The quality for the water that the shower nozzle of separating device is sprayed into the sifting barrel and the mass ratio of silica raw material are 0.5 to 2, and the shower nozzle
The pressure of the water sprayed into the sifting barrel is 0.25 to 0.6MPa.
15. silica washing screening method according to claim 13, it is characterised in that in the step 3, including it is right
The silica raw material spilt in the washing screening device is precipitated behind the gutter in settling zone, and to spilling
Flushing water in the washing screening device is sequentially passed through to be continued to carry out in clear water reserviors after the gutter and the sedimentation basin
Natural subsidence.
16. silica washing screening method according to claim 15, it is characterised in that in the step 3, in addition to
The flusher when water that absorbing well, absorption well is reclaimed is pumped to the shower nozzle or zero by elevator pump.
17. silica washing screening method according to claim 13, it is characterised in that the method for the washing screening is also wrapped
Include：It is rinsed by flusher when zero to entering the silica slag particle in gutter to keep the unobstructed of the gutter.
18. silica washing screening method according to claim 13, it is characterised in that the method for the washing screening is also wrapped
Include：It is quantitative to the extremely conveying device by batcher to carrying out the silica raw material after once sieving.
19. silica washing screening method according to claim 13, it is characterised in that the method for the washing screening is also wrapped
Include：Supplement water is filled with to the inlet pipeline of the shower nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513912.2A CN107185702A (en) | 2017-06-29 | 2017-06-29 | Silica washing screening device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513912.2A CN107185702A (en) | 2017-06-29 | 2017-06-29 | Silica washing screening device and method |
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| Publication Number | Publication Date |
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| CN107185702A true CN107185702A (en) | 2017-09-22 |
Family
ID=59881600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710513912.2A Pending CN107185702A (en) | 2017-06-29 | 2017-06-29 | Silica washing screening device and method |
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| Country | Link |
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| CN (1) | CN107185702A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273721A (en) * | 2018-04-26 | 2018-07-13 | 遵义永航再生资源利用有限公司 | A kind of waste metal particle flusher |
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Application publication date: 20170922 |