CN106180220A - The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device thereof - Google Patents
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device thereof Download PDFInfo
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Abstract
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device, for carrying out surface process to metal plate and belt surface.It is characterized in that, on or below described metal plate and belt, or upper and lower arranges centrifugal impelling throwing and gets rid of head, to metal plate and belt surface high-speed projectile three-phase mixing jet；Described three-phase mixing jet includes solid-liquid mixed media stream and gas stream；Described solid-liquid mixed media stream is made up of solid abrasive granule and liquid phase；Described gas flowing pressure scope is 0.4Mpa～2.5Mpa.According to the present invention, improve surface and process stability and the controllability of medium course of conveying, reduce the accounting of reactance capacity, the surface directly promoting spraying system processes efficiency, especially promote de-scaling efficiency, thus reduce technique de-scaling cost, and reduce system investments, take up an area and system maintenance amount.It addition, according to the present invention, the regulation of abrasive material flow can be effectively realized, quickly turns off (gas accounting 100%) and unlatching etc., meet the big system produced and stop requirement.
Description
Technical field
The invention belongs to the technical field that metal plate and belt (strip steel) surface processes, concrete, the present invention relates to one
Plant metal plate and belt surface treatment method and the device thereof of centrifugal impelling three-phase mixing jet.The method of the present invention and
Device can be used for mixing jet and the surface of all kinds of article processed occasion, as surface of steel plate (include cold conditions hot rolled coil,
Hot rolled plate, hot rolling base) etc. mixing jet de-scaling, and remove for the rust cleaning of metal surface, the surface of part objects
Paint, the strengthening of metal surface, the artificial roughness control etc. on surface.Method and the device thereof of the present invention are used especially
In the mixing jet mixing jet de-scaling to surface of steel plate (including cold conditions hot rolled coil, hot rolled plate, hot rolling base) etc..
Background technology
Metal material can form one layer on its surface in hot rolling or heat treatment process and is made up of metal-oxide
Fine and close covering, be commonly called as " firecoat ", the place of being processed further is comprehended and impacts by the existence of this firecoat: a side
Face makes the surface crack of material be difficult to be found in advance, so that the finished product processed exists quality problems；The opposing party
Face, is easily pressed into metal surface by firecoat, causes surface quality problems；In addition, the existence of hard oxide, can add
Speed roll or the abrasion of drawbench.Therefore the surface of steel plate before entering cold-rolling mill must be carried out the surfaces such as de-scaling
Science and engineering sequence, this is one of technological equipment indispensable on cold rolling product line.
For the impact of metal plate and belt surface firecoat, in the past, domestic and international manufacturing enterprise all used wet chemical to carry out
The processing mode cleaned carrys out the attachment firecoat of clear board belt surface.For steel plate, frequently with sulphuric acid,
The wet chemical acid cleaning process of the strongly acidic solution such as hydrochloric acid and Fluohydric acid..The production of this wet chemical acid cleaning process
Environment very severe, and Regeneration Treatment must be circulated, it addition, current described acid is again because producing a large amount of residual acid
Raw technique also necessarily leads to the waste gas discharge of correspondence.The corresponding discharge waste gas that described acid regeneration process produces contains
Having substantial amounts of acidity, corrosive elements, such as HCL, SO2 etc., this directly results in again the pollution to air.
Based on this, the Heavy environmental pollution problem brought by solving chemical method to clean, researcher is carried out
Substantial amounts of research, and developed multiple technologies method and apparatus, to substitute this chemical method removal metal watch
The firecoat in face.Described method and apparatus includes, such as electrolysis de-scaling, electrolysis grinding de-scaling, electric discharge de-scaling, electronics
Bundle de-scaling, laser de-scaling, grinding de-scaling, ball blast de-scaling, alternating bending de-scaling and the combination of above-mentioned distinct methods
Descaling method.In evolution in recent years, wherein high-pressure spray technique of scale removal is with fastest developing speed, its industry
Change process is the most obvious.
Can be smoothly entered next step for the metal plate and belt after the mode of jet de-scaling of guarantee high-pressure spray de-scaling to process
Process procedure, does not the most affect the effect that next step process processes simultaneously, and many research and development units propose a series of tool
Solution targetedly.
By consulting Patents, it has been found that the metallurgical technology developed country such as the most Japanese, the most German abroad, carry
Went out many solid jet, polish-brush technique of scale removal.As Japan JP06108277A discloses a kind of at continuous cold
The descaling process that spray acid is applied in combination with brush roll, Japan JP55034688A is used to disclose a kind of associating on rolling line
PV rolls scale breading compound abrasive high-pressure spray de-scaling mode.Additionally, the most Japanese JP57142710A,
JP57068217A, JP59097711A, JP05092231A, JP09085329A, JP2002102915 and the U.S.
The patents such as US5388602.
Hunan's nonferrous metals heavy-duty machinery company limited the most once utilized mixing jet method to remove the surface squama of alloy bar
Skin, according to the method, the Surface of Rod Bar after de-scaling uses the Purge methods of pressure-air to carry out surface removing.
But, the major defect that this method exists is, it is impossible to purges the grains of sand of that embedding Surface of Rod Bar, causes table
Face has hard composition granule to remain, thus causes bar in next step rolling process, easily produces because of hard composition granule
The surface defect that press-in is formed.
Airmatic company of Germany the most also utilizes mixing jet method to clean metal flat.Its post processing side
Formula is: utilize the principle of evacuation, quickly aspirates the surface sediment thing after processing, it is achieved plate face purifies
Process.But, this mode equally exists above problem: i.e., not only can not effectively remove hard composition granule
Imbedding problem, simultaneously higher because of the strip flatness requirements needed for suction, poor at strip shape, tension force is unstable
Under the operating mode such as fixed, its treatment effect there will be the defect of poor stability, easily causes some surface and cannot remove dry
Clean phenomenon.
And for example:
U.S. TMW (The Material Works) company proposes such a technical scheme (see the applicant
The Chinese patent of China's Publication No. " CN101516532A " and U.S. that US publication is " US7601226B2 "
State's patent): utilize the impelling principle of the mode shot-blasting machine that centrifugal gets rid of, in its abrasive material, utilize liquid phase medium
Replace the air of tradition shot-blasting machine, form the binomial mixed slurry of liquid phase and abrasive grain, then slurry is passed through
The centrifugal that certain device injects high speed rotating with certain pressure and flow gets rid of in head, is got rid of by centrifugal and (throws
Penetrate) high speed centrifugation power effect realize mixed slurry at a high speed, lasting impact metal plate and belt surface, come real with this
The wet method de-scaling on existing metal plate and belt surface, this technology is also referred to as EPS technology.
Technique scheme existing problems are as follows:
Use " liquid phase tries hard to recommend the device sending abrasive material " propelling movement abrasive grain to the entrance of spraying system, be directly realized by
The supply liquid phase of blending agent is tried hard to recommend and is sent required amount of liquid phase big, and the liquid phase in its blending agent is all the time defeated
Send in pipeline, and be delivered to spraying system always, thus the liquid phase quality accelerating this part needs to consume in a large number
Power (power of spraying system), therefore the aggregate efficiency of system is relatively low；
1) its " filtering recovering system of liquid phase " needs to process two parts liquid phase, and a part is used for carrying out liquid
Trying hard to recommend mutually and send, another part is used for entering in spray box body, is rinsed, i.e. " for the liquid delivery tube rinsed
Road " the interior liquid phase liquid phase consumption carried is big, thus the ability that processing system is recovered by filtration must enough be answered,
Thus invest height, safeguard greatly；
2) switch of spraying system mainly has two kinds: push the pass of mortar bottom the closing down of liquid phase, collecting tank
Stop, wherein push liquid phase and close down and can directly result in spraying system without any medium injection, thus not spray in spray box
Penetrate medium (must shut off the booster pump pushing liquid phase, typically will not use this way)；Bottom collecting tank, mortar is closed down,
It is to use machinery valve force switch to reach to control requirement, then pushes liquid phase and still can enter spraying system, and
Enter spraying system without abrasive grain and (must reach sand amount size, the control of closedown, so by opening and closing machinery valve
And this action easily causes valve to damage).
In sum, conventional technology path is: uses liquid phase as pushing medium, realizes abrasive grain
Propelling movement, the defect of this technology path is: liquid phase is excessive in the volume ratio of solid-liquid mixed media stream, causes product
Liquid phase medium etc. too much in the raw pressure charging system of propelling movement liquid phase, mixed flow, all can cause: descaling system exists
In the case of identical general power (general power of current consuming apparatus, such as motor general power), de-scaling is inefficient, with
Time the liquid phase circulation amount that needs of system must be bigger, this ability resulting in liquid phase recovery and processing system must expand by foot
Greatly, safeguard higher with cost, but de-scaling ability is the lowest.
Summary of the invention
For overcoming the problems referred to above, it is an object of the invention to, it is provided that the gold of a kind of centrifugal impelling three-phase mixing jet
Belong to strip surface treatment method and device thereof.The method of the present invention and device thereof can be used for mixing jet to all kinds of things
The surface of product processes occasion, as the mixing such as surface of steel plate (including cold conditions hot rolled coil, hot rolled plate, hot rolling base) are penetrated
Stream de-scaling, and for the rust cleaning of metal surface, the surface paint removal of part objects, the strengthening of metal surface, surface
Artificial roughness control etc..The method of the present invention and device thereof are used in particular for mixing jet to surface of steel plate (bag
Include cold conditions hot rolled coil, hot rolled plate, hot rolling base) etc. mixing jet de-scaling.
According to the present invention, can directly promote the de-scaling efficiency of spraying system, improve the stability of course of conveying with
Controllability, reduces the accounting of reactance capacity, thus directly reduces technique de-scaling cost, and reduction is filtered back
The de-scaling ability of receipts system, thus reduce system investments, take up an area and system maintenance amount, can realize effectively grinding
The regulating power of stream amount, quickly shutoff (gas accounting 100%) and unlatching etc., meet the big system produced
The effect stopped.
Technical scheme is as follows:
A kind of metal plate and belt surface treatment method of centrifugal impelling three-phase mixing jet, on described metal plate and belt or
Lower section, or upper and lower arranges centrifugal impelling throwing and gets rid of head, for penetrating the mixing of metal plate and belt surface impelling three-phase
Stream carries out surface process, it is characterised in that
The three-phase blender of the input port of supply air line and solid-liquid mixed media is had, respectively to entrance via connection
Compression gas flow and the solid-liquid mixed media flow of three-phase blender are controlled, and form three-phase mixing jet,
Thus realize the surface to metal plate and belt and process, described solid-liquid mixed media stream includes that particle diameter is 0.1mm～2.0mm
Abrasive grain and liquid phase, described flow of the compressed gas pressure limit is 0.4Mpa～2.5Mpa, described to metal
The ejection velocity of strip surface impelling three-phase mixing jet controls at 40m/s～100m/s,
The described surface to metal plate and belt processes and comprises the steps:
1) adjust the compression gas flow that supply air line inputs in three-phase blender, wait that metal plate and belt enters
The stage in impelling de-scaling region；
2) solid-liquid mixed media stream input three-phase blender, forms three-phase mixing jet with the compressed gas of input,
Metal plate and belt head is carried out the beginning de-scaling stage of de-scaling under low speed, i.e. the speed of service of steel plate head controls
At 10m/min～30m/min；
3) metal plate and belt stablizes the de-scaling stage at a high speed, refers to that the speed of service of steel plate is 30m/min～120m/min；
4) the metal plate and belt afterbody low speed de-scaling stage, the speed of service of steel plate tail control at 10m/min～
30m/min；
5) the metal plate and belt zero load impelling stage.
Step 2), the speed of service of steel plate head controls at 10m/min～30m/min (as normal running speed is
30m/min～120m/min) because strip speed is low, therefore in the unit interval, need the steel plate surface of de-scaling
Amassing and reduce the most accordingly, therefore three mixing jets need the solidliquid mixture flow of injection to reduce accordingly, as
This, then can save the power consumption of dielectric loss and casting system, reduces cost.
Step 3), " the most stable " also refers to the speed of service of steel plate, and high-speed stable running speed is
30m/min～120m/min.Described high-speed stable running speed is according to producing the initial designs requirement of line, steel plate rule
The impact of each factor such as lattice.For a same production line, when producing the specification of " thickness height-width is big ", its
Highest stabilizing velocity amplitude is the most not too large, if but when producing the specification of " thickness is thin ", then maximum speed can be big
Some.
Step 4), steel plate head is substantially suitable with the speed of service of afterbody, and the high speed stage of steady production, speed
Degree can improve a lot, and for the descaling process characteristic of three-phase mixing jet, the speed in high-speed stable running stage is led to
Often control at 30m/min～120m/min) because strip speed is low, therefore need de-scaling in the unit interval
Steel plate area reduce the most accordingly, therefore three mixing jets need the solidliquid mixture flow of injection can be corresponding
Reduce, so, then can save the power consumption of dielectric loss and casting system, reduce cost.
According to the present invention, described step 1)-5) cycle according to metal plate and belt length depending on, including " monovolume removes
Squama " and " continuous production line without a head " mode.
In " monovolume de-scaling " class production line occasion, each winding steel capital is to be implemented separately: threading (take the lead through
Unit) head rolls tightly → speed lifting → high-speed stable running (steady production stage) → reduction of speed by → coiling machine
(afterbody of strip steel soon enters unit) → whipping (tail part of band steel passes through strip steel), so, then a coiled strip steel
It is fully completed de-scaling, starts next " monovolume de-scaling ".
In " continuous production line without a head " occasion (such as: disposable planned production 100 coiled strip steel, then the cycle is
Volume 100), production line possesses Weldability, will weld with the head of a rear coiled strip steel by the afterbody of previous coiled strip steel
Get up, it is achieved " completely continuous manufacturing " of production line.So mode, then the first volume strip steel head of this product line, its
During through unit, speed is very slow (i.e. 10m/min～30m/min), but this head once enters coiling machine, and
After being rolled tightly, then strip steel will continuously run according to highest stabilizing speed of production, because followed by
All coil of strips are all soldered, thus just do not have " magnetic tape trailer " (because this magnetic tape trailer all with previous coiled strip steel
Head welds), after producing a lot of coil of strip, the afterbody of its concluding volume strip steel still needs the most always
Will be by producing line, when afterbody the most now is by unit, same speed the lowest (i.e. 10m/min～30m/min).
According to the present invention, described centrifugal impelling throwing gets rid of head by connecting feed pipe thereon and three-phase blender,
To metal plate and belt surface high-speed projectile three-phase mixing jet, metal plate and belt surface is carried out the company that plate uniform, complete is wide
Continuous impact, grinding, thus realize that the upper and lower plates face of metal plate and belt is carried out surface continuous, uniform and process.
According to the present invention, the gas medium of gas stream is in three-phase blender, and the gas of entrance is in relatively at flow
Low liquid phase at ordinary times, can be used for two-phase flow body is risen thrust.It addition,
The gas medium of described gas stream, after its flow value appropriateness is amplified, can accelerate two-phase flow body
Impetus, thus reach the effect that two-phase blending agent flow is increased, thus promote the surface of impelling head
Processing speed.
According to the present invention, after the gas medium flow of described gas stream increases further, because of the three-phase of output
The bore of mixing jet body conveying pipe is definite value, and its gas flow values is realizing the same of propelling movement two-phase flow body
Time, when its gas pressure produced in three-phase blender exceeds the stress level of two-phase flow body entrance, then
Gas medium can produce the effect of a kind of reverse propelling movement two-phase flow body, thus reaches two-phase flow body
Flow value carries out the effect being reduced or turned off, thus reaches the work that the flow to two-phase flow body reduces or turns off
With.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, described
(solid-liquid mixing is situated between as pushing two-phase flow body to use the gas medium with certain pressure in three-phase blender
Mass flow) dynamic medium, the two-phase fluid of solid-liquid mixed media stream is pushed to after throwing gets rid of head, because of described gas
The gas medium density of body stream is the most small relative to the liquid phase in two-phase flow, solid abrasive granule etc., and it is reaching
While pushing, the extra throwing whipping power that impelling head is too much will not be taken, thus reaching equal impelling efficiency
In the case of, the mode that the gas of described gas stream pushes can be obviously improved throws the useful work proportion getting rid of head, institute
The driving power of motor being equipped with can be less.
It addition, use the gas medium of described gas stream to push, it is after completing to push, gas medium
Can automatically separate from three-phase mixing jet body, it is not necessary to extra collection and retracting device carry out special treatment,
And do not pollute and emission problem.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
In step 1), by the gas valve standard-sized sheet of supply air line, meanwhile, progressively open solid-liquid mixed media
Output port 9, wait metal plate and belt head enter impelling de-scaling district,
In step 2), gradually decrease the gas inlet in three-phase blender, and in three-phase blender, flow into one
Quantitative solid-liquid mixed media, and be finally reached a stationary value, described stationary value control gas volume with
The ratio of the volume of solidliquid mixture is in 30%～90% scope.
Stationary value refers to " the mixing ratio value stabilization of three kinds of materials in three-phase fluid-mixing, instantaneous delivery value simultaneously
Also to stablize ", concrete medium ratio is: the ratio of the volume a of gas and the volume b of solidliquid mixture is (i.e.
A/ (a+b)), need control 30%～90%, wherein for 30% the limiting case (solidliquid mixture of output
At most), being the strip steel for some very easy threading (will head pass through unit), it takes the lead to pass through unit
Speed the highest (i.e. up to the highest threading speed, such as 20m/min～30m/min), and for the limit 90% situation
(solidliquid mixture of output is minimum), is the steel grade specification extremely difficult for some threading, i.e. this steel grade specification
The speed of threading is the slowest.
As for the volume ratio of the solid particle in solidliquid mixture Yu liquid, it is substantially invariable.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
In step 3), for fully ensuring that the three-phase mixing jet amount that three-phase blender exports is entirely capable of meeting fortune at a high speed
De-scaling medium amount needed for the metal plate and belt of row, reduces the compressed gas input quantity of supply air line further, will pressure
Contracting gas output controls 10% level in all-round power output, and this all can power refer to " utilize this gas to solid-liquid
Maximum gas consumed flow required when mixture blocks, the compressed gas that now supply air line is inputted exists
Three-phase blender becomes acceleration medium, solid-liquid mixed media stream is realized the effect accelerating to push, it is ensured that metal
Strip surface de-scaling under high-speed cruising.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, mixing
Jet is because containing abrasive grain and liquid, and granule is equal with the muzzle velocity of liquid phase, according to the difference of technique,
All control at 40m/s～100m/s, but when clashing into target surface, the speed of abrasive grain be held essentially constant,
And liquid liquid phase can dissipate, be atomized, thus its speed cannot detect, in the technological requirement for surface process,
The not requirement of the speed of liquid phase mist.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, described
Three-phase blender is used for being passed through solid-liquid mixed media stream and gas stream, described gas stream enter three-phase blender it
After, it is achieved propelling movement, closedown to solid-liquid mixed media fluid control with the flexible of uninterrupted.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
In step 1), by the gas valve standard-sized sheet of supply air line 6, meanwhile, progressively open solid-liquid mixing and be situated between
The output port 9 of matter, waits that the head of metal plate and belt enters impelling de-scaling district,
In step 2), close supply air line 6 by a small margin, gradually decrease the gas inlet in three-phase blender 10,
And in three-phase blender 10, flow into the solid-liquid mixed media stream of certain flow, and it is finally reached a stationary value.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention,
In step 1) before, it is formed with the medium preparatory stage: i.e.,
When metal target strip will be run to jet impelling region, three kinds of media of centrifugal impelling carry the most
To the distinct interface region of three-phase blender 10, wherein solid-liquid mixed media has been supplied at 9, certain pressure
Compression gas medium be delivered at supply air line 6.
Step 1) can be described as sealed condition: gas medium the volume ratio of solid-liquid mixed media stream be about 50%～
100% (gas volume/(gas volume+solid-liquid volume)), when the ratio of gas raises (reaching 100%), Gu
Liquid blending agent stream is just forced closure, cutout, now the medium the most only air of entrance inside spraying system,
Therefore its medium ejected does not has any de-scaling ability, and this is the middle shutdown of technological requirement, stops temporarily
The hard requirement of specific event section.
Preferably, described volume ratio is about 100%.
Step 2) can be described as propelling movement state: gas medium is (gas volume/(gas in solid-liquid mixed media stream
Volume+solid-liquid volume)) volume ratio in 10%～70% scope, its objective is to be made by the propelling movement of compressed gas
With, it is achieved liquid phase can quickly be delivered to specify destination (i.e. the medium inlet of spraying system) with the mixed flow of abrasive material,
Stopping solid-liquid mixed media stream, to be trapped in transfer pipeline internal and result in blockage, and therefore, propelling movement state is base the most
This state, is also most basic function.
Preferably, described volume ratio is at 40%～50% (gas volume/(gas volume+solid-liquid volume)).
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, preferably
, described gas flowing pressure scope is in 1.5Mpa～2.5Mpa.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
In step 3), for fully ensuring that the medium amount that three-phase blender 10 exports is entirely capable of meeting high-speed cruising
De-scaling medium amount needed for metal plate and belt, reduces the input quantity of supply air line 6, further by its gas output
Controlling 10% level in all-round power output, the compressed gas that now supply air line 6 is inputted is at three-phase blender
Become acceleration medium in 10, solid-liquid mixed media 9 is realized the effect accelerating to push, it is ensured that metal plate and belt is at height
Surface de-scaling under speed operation.
Step 3) can be described as controlled state: gas medium the volume ratio of solid-liquid mixed media stream be about 30%～
90% (gas volume/(gas volume+solid-liquid volume)), so, wants according to the rate-of flow that spraying system needs
Ask, it is achieved the conveying capacity that the flow of solid-liquid mixing can regulate and control within the specific limits.
Preferably, described volume ratio is about 50%～80% (gas volume/(gas volume+solid-liquid volume)).
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
In step 4), incrementally increase the valve opening of supply air line 6, it is achieved more compressed gas enters three-phase
Blender 10, reduces the input of two-phase solid-liquid mixed media 9, reduces in the output medium of three-phase blender 10
The flow of solid-liquid mixed media, maintains metal plate and belt afterbody to carry out low speed de-scaling.
Step 4) can be described as propelling movement state: gas medium in solid-liquid mixed media stream (by solid-liquid mixed media
Stream regards a kind of medium as, is so easy to the volume ratio of metering mixing) volume ratio in 10%～70% scope,
Its objective is the propelling movement effect by compressed gas, it is achieved liquid phase can quickly be delivered to specify with the mixed flow of abrasive material
Destination (i.e. the medium inlet of spraying system), stops solid-liquid mixed media stream and is trapped in transfer pipeline inside and makes
Becoming blocking, therefore, propelling movement state is the most basic state, is also the most basic function.
The scale parameter of solid-liquid mixed media stream:
Under three of the above state, liquid phase substantially belongs to fixed value with the mixed flow ratio of abrasive grain, and it is fixed
By the particle size range of abrasive grain, abrasive density, value scope determines that general volume ratio defines.
According to the artificial Steel abrasive (shot and steel sand) that can use and tribolite (natural production, pulverizing
After mineral grain thing, such as garnet, sand grains, Brown Alundum etc.): the volume ratio of liquid phase and abrasive grain is about
20%～60%.
It addition, gas medium realize three of the above difference in functionality (i.e. three kinds states: push, control ratio,
Sealed condition) time volume ratio there is certain chiasm interference region, this is normal, because three kinds of functions
State defines according to descaling process demand, cannot gem-pure confining spectrum boundary between three.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, described
Propelling movement state is the state that normal table produces；Described controlled state is that band steel toe, afterbody carry out de-scaling process
Lower-speed state, or lower-speed state during product line exception, interim place when it runs relatively low mainly for steel plate speed
Reason state；Described sealed condition is the interim de-scaling state that stops, and sky as provisional in technological requirement strip steel crosses process section
Time (strip steel is not required to de-scaling, and simply by), now needing to use sealed condition, the purpose of closure is to avoid
Whole system is stopped, it is ensured that the time that system is required when next time starts de-scaling.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention,
The solid particle medium particle diameter of described solid-liquid mixed media stream is 0.1mm～2.0mm, and described solid particle is situated between
Matter is selected from spherical, column, multi-angular shape granule or their hybrid particles of more than two kinds.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
For granularity at 0.1mm～0.3mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 5%～
20%.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be, for granularity at 0.3～0.5mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 7%～
25%.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be, for granularity in 0.5～2.0mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream be:
20%～40%.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
Described three-phase blender include three-phase blender main body and be arranged at three-phase blender lower body part three-phase mix
Closing jet push part, the output point of the three-phase mixing jet of described three-phase mixing jet push part is used with centrifugal impelling
Throw to get rid of and there is physics difference in height >=500mm, simultaneously three-phase mixing jet between the three-phase mixing jet receiving station of head
Push part output point and the angle connected between straight line and horizontal plane received between point are not less than 20 °.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
The three-phase blender input port of supply air line is positioned at three-phase blender main body side, solid-liquid mixed media
Input port is positioned at three-phase blender body top.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, in institute
State on or below metal plate and belt, or upper and lower arranges centrifugal impelling throwing and gets rid of head, for metal plate and belt surface
Impelling three-phase mixing jet carries out surface process, it is characterised in that
The three-phase blender of the input port of supply air line and solid-liquid mixed media is had, respectively to entrance via connection
Gas flow and the solid-liquid mixed media flow of three-phase blender are controlled, and form three-phase mixing jet, thus
Realizing the surface to metal plate and belt to process, described gas flowing pressure scope is 0.4Mpa～2.5Mpa, described right
The ejection velocity of metal plate and belt surface impelling three-phase mixing jet controls at 40m/s～100m/s.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
The particle diameter of described abrasive grain is 0.1mm～0.5mm, and described abrasive grain is selected from spherical, column, many ribs
Angular particles or their hybrid particles of more than two kinds.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
Described three-phase blender include three-phase blender main body and be arranged at three-phase blender lower body part three-phase mix
Closing jet push part, the three-phase mixing jet push part output point of described three-phase blender gets rid of with centrifugal impelling throwing
There is physics difference in height between the three-phase mixing jet receiving station of head is >=500mm, and three-phase mixing jet pushes away simultaneously
Portion's output point and the angle connected between straight line and horizontal plane receiving between point is sent to be not less than 20 °.
According to the metal plate and belt surface processing device of described a kind of centrifugal impelling three-phase mixing jet of the present invention,
It is characterized in that,
The three-phase blender input port of supply air line is positioned at three-phase blender main body side, solid-liquid mixed media
Input port is positioned at three-phase blender body top.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
Described three-phase blender 10 includes three-phase blender main body and is arranged at the three of three-phase blender lower body part
Mixing push part mutually, the three-phase mixing push part output point of described three-phase blender 10 gets rid of head with centrifugal impelling throwing
Three-phase mixing jet receiving station between there is physics difference in height for >=500mm, three-phase mixing push part is defeated simultaneously
The angle connected between straight line and liquid phase plane gone out a little and receive between point is not less than 20 °
Reason: this angle is to ensure that the physical location pushing point is consistently higher than reception point, and has certain inclination
Angle value, it is ensured that the solidliquid mixture during propelling movement can be defeated to receiving point smoothly under conditions of relatively low thrust
Deliver to position, meet the propelling movement requirement of steady concentration, high reliability, it is ensured that stablize de-scaling requirement.
Effect: because required thrust is less, therefore required propelling movement medium (compressed gas) flow and pressure
Can be the least, the most then can effectively save compressed-air actuated consumption；Meanwhile, the three-phase mixing of conveying is situated between
Solidliquid mixture in matter is dense (because the solid dielectric content in solidliquid mixture is substantially fixing),
Therefore ultimate density (the i.e. volume of solid particulate matter/(the solid body of solid particulate matter may finally effectively be ensured
Long-pending+liquid volume+gas volume)), and the quantity of solid particulate matter is to determine the key (solid of de-scaling efficiency
Grain substrate concentration is the highest, and de-scaling efficiency is the highest).So, not only it is effectively increased the efficiency (solid concentration is high) of de-scaling,
The compression gas flow simultaneously expended is little.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levying and be, described liquid phase stream medium is liquid phase, locates all the time during described gas flow medium specifically or preferably room temperature
In the gas medium of the stable chemical nature of gaseous state, can be elementary gas or mixed gas, preferably be from
So air.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
The liquid medium of described solid-liquid mixed media stream is selected from industrial liquid phase or possesses oils Jie of mobility
Matter, when described liquid medium is general industry liquid phase, temperature below 100 DEG C, pH value is 6.5～9.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
When described liquid medium is oils medium, for having liquid or certain several liquid medium of mobility
Or solid is dissolved in the mixes liquid material formed after liquid medium.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, liquid phase
Cannot be below 20%, otherwise cannot carry；The purest liquid phase of liquid phase accounting 100%, i.e. gas can also be to pure
Liquid phase carries.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, preferably
, liquid phase volume ratio in solid-liquid mixed media stream is in 20%～80% scope.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
Described liquid medium is water.
According to the metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
Described solid particle medium selected from natural corundum class abrasive material, carbide abrasives, artificial class abrasive material, shot,
Steel sand, the intermetallic composite coating ball class of steel wire cut pill,
Described natural corundum class abrasive material is selected from Brown Alundum, white fused alumina, single alundum,
Described carbide abrasives is selected from black silicon carbide, green silicon carbide, boron carbide.
The present invention provides again the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet, technical side
Case is as follows:
A kind of metal plate and belt surface processing device of centrifugal impelling three-phase mixing jet, on described metal plate and belt or
Lower section, or upper and lower arranges centrifugal impelling throwing and gets rid of head, for penetrating the mixing of metal plate and belt surface impelling three-phase
Stream carries out surface process, it is characterised in that
The three-phase blender 10 of the input port 9 of supply air line 6 and solid-liquid mixed media is had, respectively via connection
The gas flow and solid-liquid mixed media flow entering three-phase blender 10 is controlled, forms three-phase mixing and penetrate
Stream, thus realize the surface to metal plate and belt and process, described gas flowing pressure scope is 0.4Mpa～2.5Mpa,
The described ejection velocity to metal plate and belt surface impelling three-phase mixing jet controls at 40m/s～100m/s.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
The solid particle medium particle diameter of described solid-liquid mixed media stream is 0.1mm～2.0mm, and described solid particle is situated between
Matter is selected from spherical, column, multi-angular shape granule or their hybrid particles of more than two kinds.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
For granularity at 0.1mm～0.3mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 5%～
20%.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be, for granularity at 0.3～0.5mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 7%～
25%.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
Described three-phase blender 10 includes three-phase blender main body and is arranged at the three of three-phase blender lower body part
Mixing push part mutually, the three-phase mixing push part output point of described three-phase blender 10 gets rid of head with centrifugal impelling throwing
Three-phase mixing jet receiving station between there is physics difference in height for >=500mm, three-phase mixing push part is defeated simultaneously
The angle connected between straight line and liquid phase plane gone out a little and receive between point is not less than 20 °.
I.e. gas medium mixing pushes point higher than the line between spraying system receiving station, and and liquid phase plane at 2
Between the angle value C of angle (seeing the angle ∠ C in Fig. 3) cannot be below 20 °.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levy and be,
Three-phase blender 10 input port of supply air line 6 is positioned at three-phase blender main body side, and solid-liquid mixing is situated between
The input port of matter is positioned at three-phase blender body top.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, below the metal plate and belt surface treatment region to metal plate and belt surface impelling three-phase mixing jet, be provided with mill
Material particle collection trough, described abrasive grain collecting tank is used for collecting and recycling abrasive grain.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Putting, described metal plate and belt is the cold conditions metal plate and belt before entering cold-rolling mill.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Putting, described wet method is centrifuged the surface treatment method of impelling abrasive and is particularly well-suited to strip specification excursion greatly,
Length direction is the most affected by environment with width and causes firecoat responsive type pockety steel grade, especially
It is applicable to the synchronization de-scaling process of the overall length of carbon sheet, full plate width, positive and negative.
Metal plate and belt surface treatment method according to centrifugal impelling three-phase mixing jet of the present invention and device, institute
State wet method be centrifuged the surface treatment method of impelling abrasive be particularly well-suited to the overall length of strip of steel plate, full plate width,
Positive and negative synchronizes de-scaling and processes, and described scale presents the thickness of both sides and zone line on metal plate and belt width
The poor firecoat at more than 5um of degree is distributed the steel grade presenting typical uneven characteristic, at metal plate and belt length direction
The thickness difference of head-tail and zone line is distributed the steel grade presenting typical uneven characteristic at the firecoat of more than 7um,
Be simultaneously suitable for the deformed steel strip of metal plate and belt or tension fluctuation cause strip steel during impelling de-scaling the shake of plate face away from
From more than 20mm, but the extreme operating condition less than 100mm.
Preferably, described scale presents the thickness difference of both sides and zone line on metal plate and belt width and exists
The firecoat distribution of more than 3um presents the steel grade of typical uneven characteristic, at the head-tail of metal plate and belt length direction
It is distributed at the firecoat of more than 5um with the thickness difference of zone line and presents the steel grade of typical uneven characteristic.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, described three-phase blender uses the gas medium with certain pressure as push two-phase flow body (Gu
Liquid blending agent stream) dynamic medium, the two-phase fluid of solid-liquid mixed media stream is pushed to after throwing gets rid of head,
Because the gas medium density of described gas stream is very relative to the liquid liquid phase in two-phase flow, solid abrasive granule etc.
Small, it is while reaching to push, and will not take the extra throwing whipping power that impelling head is too much, thus reach
In the case of equal impelling efficiency, the mode that the gas of described gas stream pushes can be obviously improved throwing and get rid of having of head
Diligent proportion, provisioned driving power of motor can be less.
It addition, use the gas medium of described gas stream to push, it is after completing to push, gas medium
Can automatically separate from three-phase mixing jet body, it is not necessary to extra collection and retracting device carry out special treatment,
And do not pollute and emission problem.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, it is characterised in that described three-phase blender is used for being passed through solid-liquid mixed media stream and gas stream, described gas
Flow after entering three-phase blender, it is achieved propelling movement, closedown to two-phase solid-liquid mixed media fluid are big with flow
Little flexible control.
According to the metal plate and belt surface processing device of a kind of centrifugal impelling three-phase mixing jet of the present invention, it is special
Levying and be, described gas flowing pressure scope is in 1.5Mpa～2.5Mpa.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Putting, it is characterised in that described liquid phase stream medium is water, described gas flow medium can be to be in all the time during room temperature
The compression gas medium of the stable chemical nature of gaseous state, can be elementary gas or mixed gas, is preferably
Natural air.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, it is characterised in that
The solid particle medium particle diameter of described solid-liquid mixed media stream is 0.1mm～0.5mm.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, it is characterised in that
The liquid medium of described solid-liquid mixed media stream is selected from industrial liquid phase or possesses oils Jie of mobility
Matter, when described liquid medium is general industry liquid phase, temperature below 100 DEG C, pH value is 6.5～9.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, it is characterised in that
When described liquid medium is oils medium, for having liquid or certain several liquid medium of mobility
Or solid is dissolved in the mixes liquid material formed after liquid medium.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, it is preferred that push point and the angle connected between straight line and liquid phase plane that receives between point with 45 °～
90 ° is ideal range.
Metal plate and belt surface treatment method according to a kind of centrifugal impelling three-phase mixing jet of the present invention and dress
Put, during because solid-liquid mixed media fluid is pushed by gas, if angle of inclination is less than 20 °, then need liquid liquid
The ratio of phase dramatically increases and could keep stable conveying, the most reasonably increases this ∠ C value, can significantly reduce
Liquid phase ratio in fluid-mixing, thus ensure that the ratio value of the abrasive grain in fluid-mixing is higher, from
And improve the de-scaling efficiency of casting system.
As it can be seen, employing gas is pointed to the input port 9 of the solid-liquid mixed media of collected overhead trench bottom
High concentration mixed flow pushes, and is delivered to spraying system, and the gas of conveying, because density is little, is not take up injection
The power of system, and the solid abrasive particle fraction of the high concentration mixed flow bottom collecting tank is significantly larger than conventional
Solid-liquid mixed media stream, therefore, this spraying system has higher effective power.
It addition, while using gas to carry out the conveying of solid-liquid mixed media stream, by regulating the flow of gas,
The effective control to solid-liquid mixed media stream flow can be realized, be even switched off, it is achieved be delivered to the pipe of spraying system
Road only has gas (without solid-liquid mixed media stream), temporarily closing down, promptly needed for so can meeting production period
Opening and closing and the control mode needing this gas such as close down, efficiently solve the flimsy defect of machinery valve；
According to the present invention, use compressed gas as pushing medium, push the mixed flow of liquid phase and abrasive grain.
Now, compressed gas is as a kind of typical low-density, the medium sources of low cost, and it is when pushing mixed flow,
Can well ensure that the mixed flow that spraying system is used has stable mixed proportion (liquid phase and abrasive grain
Volume ratio, this volume ratio is the lowest, and the efficiency of spraying system is the highest, but too low can cause again conveying
Not smooth.
Therefore, in the past, such as, in EPS technology, it is necessary to the volume ratio of liquid phase is accomplished sufficiently high
Must be over the volume ratio of 80% under normal circumstances, usually 85%, so, guarantee liquid phase sand mixed flow
Conveying stability, maintenance system can be run continually and steadily.
Because the compressed gas pushed is after pushing to spraying system by solid-liquid mixed media stream, even if gas enters
Enter spraying system.It, because density is minimum, is substantially not take up the power of motor of spraying system, therefore can be seen as
Idle.Now only have solid-liquid mixed media stream and take the power consumption of spraying system, then the efficiency of spraying system utilizes
Rate promotes a lot, and gas is made without special recovery and processing system, and it is taken from natural air, releases
Natural air is returned to after putting.Therefore, the present invention has significant advantage.
As it has been described above, according to the present invention, can directly promote the de-scaling efficiency of spraying system, improve course of conveying
Stability and controllability, reduce the accounting of reactance capacity, thus directly reduce technique de-scaling cost, and
Reduce the de-scaling ability of filtering recovering system, thus reduce system investments, take up an area and system maintenance amount, can be real
The now regulating power of effective abrasive material flow, quickly shutoff (gas accounting 100%) and unlatching etc., meet big
The effect that the system produced stops.
Accompanying drawing explanation
Fig. 1 is the three-phase blender schematic diagram of the three-phase mixing jet of metal plate and belt surface processing device of the present invention；
Fig. 2 is that the three-phase medium mixing of metal plate and belt surface processing device of the present invention pushes working state schematic representation；
Fig. 3 is conventional art scheme schematic diagram；
Fig. 4 is the technical solution of the present invention schematic diagram of comparison diagram 3.
In figure, 1 is liquid pumping device, and 2 is water filtration recovery system, and 3 pump abrasive grain device for waterpower,
4 is metal plate and belt, and 5 is three-phase mixing jet, and 6 is supply air line, and 7 is abrasive grain collecting tank, and 8 is liquid
Body pumps pipeline, and 9 is the input port of solid-liquid mixed media, and 10 is three-phase blender, and 11 is push part, and 12
For compressed air generator.
Detailed description of the invention
Embodiment
A kind of metal plate and belt surface treatment method of centrifugal impelling three-phase mixing jet, on described metal plate and belt or
Lower section, or upper and lower arranges centrifugal impelling throwing and gets rid of head, for mixing metal plate and belt surface high-speed projectile three-phase
Close jet, carry out surface process.Described high-speed projectile speed controlling is at 40m/s～100m/s, and described three-phase mixes
Closing jet and include solid-liquid mixed media stream and gas stream, described solid-liquid mixed media stream is by solid abrasive granule and liquid
Constitute mutually.
Described centrifugal impelling throwing gets rid of head by connecting feed pipe thereon and three-phase blender, to metal plate and belt table
Face high-speed projectile three-phase mixing jet, carries out impact, grinding continuously that plate uniform, complete is wide to metal plate and belt surface,
Thus realize that the upper and lower plates face of metal plate and belt is carried out surface continuous, uniform and process.
Described three-phase blender, is used for being passed through solid-liquid mixed media stream and gas stream, and described gas stream is entering three
After phase blender, it is achieved propelling movement, closedown to two-phase solid-liquid mixed media fluid are controlled with the flexible of uninterrupted
System.Described gas flowing pressure scope is in 0.4Mpa～2.5Mpa.
The liquid medium of described solid-liquid mixed media stream is selected from water for industrial use or possesses the oils medium of mobility,
Described liquid medium is general industry water, temperature below 100 DEG C, pH value is 6.5～9.
The solid of described solid-liquid mixed media stream or abrasive grain are selected from spherical, column, multi-angular shape abrasive grain
Or they mixture of more than two kinds, the particle diameter of described abrasive grain is 0.1mm～0.5mm.
Described solid particle medium selected from natural corundum class abrasive material, carbide abrasives, artificial class abrasive material, shot,
Steel sand, the intermetallic composite coating ball class of steel wire cut pill,
Described natural corundum class abrasive material is selected from Brown Alundum, white fused alumina, single alundum,
Described carbide abrasives is selected from black silicon carbide, green silicon carbide, boron carbide.
The mixing of described gas medium pushes point higher than the line between spraying system receiving station, and and horizontal plane at 2
Between the angle value C of angle (the angle ∠ C in seeing) Fig. 3 cannot be below 20 °.
Described three-phase blender 10 includes three-phase blender main body and is arranged at the three of three-phase blender lower body part
Phase mixing jet push part 11, the three-phase mixing jet push part output point A of described three-phase blender 10 with from
Heart impelling is thrown to get rid of and be there is physics difference in height △ L between the three-phase mixing jet receiving station B of head for >=500mm,
Angle between three-phase mixing jet push part output point and the connection straight line and the horizontal plane that receive between point is not simultaneously
Less than 20 °.
Three-phase blender 10 input port of supply air line 6 is positioned at three-phase blender main body side, and solid-liquid mixing is situated between
The input port of matter is positioned at three-phase blender body top.
The three-phase blender 10 of the input port 9 of supply air line 6 and solid-liquid mixed media is had, respectively via connection
The gas flow and solid-liquid mixed media flow entering three-phase blender 10 is controlled, forms three-phase mixing and penetrate
Stream 5, thus realize the surface to metal plate and belt 4 and process, described gas flowing pressure scope is 0.4Mpa～2.5
Mpa, the described ejection velocity to metal plate and belt surface impelling three-phase mixing jet 5 controls at 40m/s～100m/s,
The described surface to metal plate and belt processes and comprises the steps:
1) adjust the compression gas flow that supply air line inputs in three-phase blender, wait that metal plate and belt enters and throw
Penetrate the stage in de-scaling region；
2) solid-liquid mixed media stream input three-phase blender, forms three-phase mixing jet with the compressed gas of input,
Metal plate and belt head carrying out the beginning de-scaling stage of de-scaling under low speed i.e., the speed of service of steel plate head controls
10m/min～30m/min；
3) metal plate and belt stablizes the de-scaling stage at a high speed, refers to that the speed of service of steel plate is 30m/min～120m/min；
4) the metal plate and belt afterbody low speed de-scaling stage, the speed of service of steel plate tail control at 10m/min～
30m/min；
5) the metal plate and belt zero load impelling stage.
The present embodiment is centrifuged the surface treatment method of impelling abrasive and is particularly well-suited to strip specification excursion greatly,
Length direction is the most affected by environment with width and causes firecoat responsive type pockety steel grade, especially
It is applicable to the synchronization de-scaling process of the overall length of carbon sheet, full plate width, positive and negative.
According to the present invention, can directly promote the de-scaling efficiency of spraying system, improve the stability of course of conveying with
Controllability, reduces the accounting of reactance capacity, thus directly reduces technique de-scaling cost, and reduction is filtered back
The de-scaling ability of receipts system, thus reduce system investments, take up an area and system maintenance amount, can realize effectively grinding
The regulating power of stream amount, quickly shutoff (gas accounting 100%) and unlatching etc., meet the big system produced
The effect stopped.
Claims (16)
1. the metal plate and belt surface treatment method of a centrifugal impelling three-phase mixing jet, on or below described metal plate and belt, or upper and lower arranges centrifugal impelling throwing and gets rid of head, for impelling three-phase mixing jet in metal plate and belt surface is carried out surface process, it is characterized in that
Via the three-phase blender connecting the input port having supply air line and solid-liquid mixed media, respectively the compression gas flow and solid-liquid mixed media flow entering three-phase blender is controlled, form three-phase mixing jet, thus realize the surface to metal plate and belt and process, described solid-liquid mixed media stream includes abrasive grain and the liquid phase that particle diameter is 0.1mm～2.0mm, described flow of the compressed gas pressure limit is 0.4Mpa～2.5Mpa, the described ejection velocity to metal plate and belt surface impelling three-phase mixing jet controls at 40m/s～100m/s
The described surface to metal plate and belt processes and comprises the steps:
1) adjust the compression gas flow that supply air line inputs in three-phase blender, wait that metal plate and belt enters the stage in impelling de-scaling region；
2) solid-liquid mixed media stream input three-phase blender, forms three-phase mixing jet with the compressed gas of input, metal plate and belt head carries out the beginning de-scaling stage of de-scaling under low speed i.e., and the speed of service of steel plate head controls at 10m/min～30m/min；
3) metal plate and belt stablizes the de-scaling stage at a high speed, refers to that the speed of service of steel plate is 30m/min～120m/min；
4) the metal plate and belt afterbody low speed de-scaling stage, the speed of service of steel plate tail controls at 10m/min～30m/min；
5) the metal plate and belt zero load impelling stage.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 1, it is characterised in that
In step 1), by the gas valve standard-sized sheet of supply air line, meanwhile, progressively open the output port 9 of solid-liquid mixed media, wait that the head of metal plate and belt enters impelling de-scaling district,
In step 2), gradually decrease the gas inlet in three-phase blender, and in three-phase blender, flow into a certain amount of solid-liquid mixed media, and and it being finally reached a stationary value, described stationary value controls at the volume of gas and the ratio of the volume of solidliquid mixture in 30%～90% scope.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 1, it is characterised in that
In step 3), for fully ensuring that the three-phase mixing jet amount that three-phase blender exports is entirely capable of meeting the de-scaling medium amount needed for the metal plate and belt of high-speed cruising, reduce the compressed gas input quantity of supply air line further, compressed gas output is controlled 10% level in all-round power output, this all can power refer to " utilize the maximum gas consumed flow that this gas is required when blocking solidliquid mixture, the compressed gas that now supply air line is inputted becomes acceleration medium in three-phase blender, solid-liquid mixed media stream is realized the effect accelerating to push, ensure metal plate and belt surface de-scaling under high-speed cruising.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 1, it is characterised in that
In step 4), incrementally increase the valve opening of supply air line, more compressed gas is made to enter three-phase blender, simultaneously, reduce the input of solid-liquid mixed media stream, reduce the flow of solid-liquid mixed media in the three-phase mixing jet of three-phase blender output, carry out low speed de-scaling at metal plate and belt afterbody.
A kind of metal plate and belt surface treatment method of centrifugal impelling three-phase mixing jet, it is characterised in that
The solid of described solid-liquid mixed media stream or abrasive grain are selected from spherical, column, multi-angular shape abrasive grain or their mixture of more than two kinds, and the particle diameter of described abrasive grain is 0.1mm～0.5mm.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 5, it is characterised in that
For granularity in 0.1mm～0.3mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 5%～20%.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 5, it is characterised in that for granularity in 0.3～0.5mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 7%～25%.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 1, it is characterised in that for granularity in 0.5～2.0mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream be: 20%～40%.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 1, it is characterised in that
Described three-phase blender includes three-phase blender main body and is arranged at the three-phase mixing jet push part of three-phase blender lower body part, the output point of the three-phase mixing jet of described three-phase mixing jet push part and centrifugal impelling are thrown and be there is physics difference in height >=500mm between the three-phase mixing jet receiving station getting rid of head, and three-phase mixing jet push part output point and the angle connected between straight line and horizontal plane received between point are not less than 20 ° simultaneously.
The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet the most as claimed in claim 1, it is characterised in that
The three-phase blender input port of supply air line is positioned at three-phase blender main body side, and the input port of solid-liquid mixed media is positioned at three-phase blender body top.
The metal plate and belt surface processing device of 11. 1 kinds of centrifugal impelling three-phase mixing jets, on or below described metal plate and belt, or upper and lower arranges centrifugal impelling throwing and gets rid of head, for impelling three-phase mixing jet in metal plate and belt surface is carried out surface process, it is characterized in that
Via the three-phase blender connecting the input port having supply air line and solid-liquid mixed media, respectively the gas flow and solid-liquid mixed media flow entering three-phase blender is controlled, form three-phase mixing jet, thus realize the surface to metal plate and belt and process, described gas flowing pressure scope is 0.4Mpa～2.5Mpa, and the described ejection velocity to metal plate and belt surface impelling three-phase mixing jet controls at 40m/s～100m/s.
The metal plate and belt surface processing device of 12. a kind of centrifugal impelling three-phase mixing jets as claimed in claim 11, it is characterised in that
The particle diameter of described abrasive grain is 0.1mm～0.5mm, and described abrasive grain is selected from spherical, column, multi-angular shape granule or their hybrid particles of more than two kinds.
The metal plate and belt surface processing device of 13. a kind of centrifugal impelling three-phase mixing jets as claimed in claim 11, it is characterised in that
For granularity in 0.1mm～0.3mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 5%～20%.
The metal plate and belt surface processing device of 14. a kind of centrifugal impelling three-phase mixing jets as claimed in claim 11, it is characterised in that for granularity in 0.3～0.5mm abrasive grain, the solid-liquid volume ratio of solid-liquid mixed media stream: 7%～25%.
The metal plate and belt surface processing device of 15. a kind of centrifugal impelling three-phase mixing jets as claimed in claim 11, it is characterised in that
Described three-phase blender includes three-phase blender main body and is arranged at the three-phase mixing jet push part of three-phase blender lower body part, the three-phase mixing jet push part output point of described three-phase blender and centrifugal impelling are thrown and be there is physics difference in height between the three-phase mixing jet receiving station getting rid of head for >=500mm, and three-phase mixing jet push part output point and the angle connected between straight line and horizontal plane that receives between point are not less than 20 ° simultaneously.
The metal plate and belt surface processing device of 16. a kind of centrifugal impelling three-phase mixing jets as claimed in claim 11, it is characterised in that
The three-phase blender input port of supply air line is positioned at three-phase blender main body side, and the input port of solid-liquid mixed media is positioned at three-phase blender body top.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218722.9A CN106180220A (en) | 2015-04-30 | 2015-04-30 | The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218722.9A CN106180220A (en) | 2015-04-30 | 2015-04-30 | The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device thereof |
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| CN106180220A true CN106180220A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510218722.9A Pending CN106180220A (en) | 2015-04-30 | 2015-04-30 | The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device thereof |
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| CN (1) | CN106180220A (en) |
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| CN202479238U (en) * | 2012-03-07 | 2012-10-10 | 湖州金冶电子材料股份有限公司 | Mechanical de-scaling equipment |
| CN102719831A (en) * | 2012-05-29 | 2012-10-10 | 中冶南方工程技术有限公司 | Method for removing scales on surface of hot-rolled stainless steel strip |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1277830A (en) * | 1969-12-08 | 1972-06-14 | Nippon Kokan Kk | Method for removing solid contaminants from the surfaces of steel |
| JPS555155A (en) * | 1978-06-28 | 1980-01-16 | Hitachi Ltd | Scale removing method of hot rolled metal strip |
| JPS5510308A (en) * | 1978-07-07 | 1980-01-24 | Hitachi Ltd | Surface treating method of metal strip and device thereof |
| JPS55125979A (en) * | 1979-03-20 | 1980-09-29 | Ishikawajima Harima Heavy Ind Co Ltd | Device to shoot wet blast |
| CN201086238Y (en) * | 2007-08-01 | 2008-07-16 | 王鹏飞 | Three-phase impulse fluid jet surface eliminating process equipment |
| CN202479238U (en) * | 2012-03-07 | 2012-10-10 | 湖州金冶电子材料股份有限公司 | Mechanical de-scaling equipment |
| CN102672622A (en) * | 2012-05-23 | 2012-09-19 | 太仓凯鑫电子有限公司 | Centrifugal abrasive material projection machining device |
| CN102719831A (en) * | 2012-05-29 | 2012-10-10 | 中冶南方工程技术有限公司 | Method for removing scales on surface of hot-rolled stainless steel strip |
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