CN108088531A - The detection method and device of separating interface - Google Patents
The detection method and device of separating interface Download PDFInfo
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- CN108088531A CN108088531A CN201711288186.5A CN201711288186A CN108088531A CN 108088531 A CN108088531 A CN 108088531A CN 201711288186 A CN201711288186 A CN 201711288186A CN 108088531 A CN108088531 A CN 108088531A
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- 238000001514 detection method Methods 0.000 title claims abstract description 200
- 239000000725 suspension Substances 0.000 claims abstract description 147
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 57
- 238000000926 separation method Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 8
- 239000006228 supernatant Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 11
- 238000002834 transmittance Methods 0.000 abstract description 7
- 230000035611 feeding Effects 0.000 description 90
- 239000007787 solid Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 230000035772 mutation Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229920005479 Lucite® Polymers 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
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- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
This application discloses the detection methods and device of a kind of separating interface.This method includes：The suspension in splitter is conducted in corresponding multiple detection pipes by multiple feeding pipes, wherein, multiple feeding pipes are set in turn according to corresponding predetermined depth in splitter, wherein, multiple detection pipes are positioned over same level；Gather the elevation information of suspension level in multiple detection pipes；According to the elevation information of suspension level in multiple detection pipes, the interface location of suspension in splitter is obtained.By the application, solve identified in correlation technique separating interface accuracy be vulnerable to ambient light, suspension color and separate column material light transmittance influence, and then cause to identify separating interface accuracy it is relatively low the problem of.
Description
Technical field
This application involves solid separation field, in particular to the detection method and device of a kind of separating interface.
Background technology
Gu solid separator is the instrument for different hybrid solids to be separated, wherein, a kind of point of solid solid separator
It is that there are different sinking speed using the solid matter in suspension from principle, therefore identifies that different solid matters are certain in sedimentation
After time, the separating interface of formation, and operation processing is carried out to separating interface, and the mode of common identification separating interface, lead to
It is often that the suspension after sedimentation a period of time is imaged, separating interface is identified by image procossing.But for upper
State identification separating interface mode, easily disturbed be subject to ambient light, at the same the depth of the color of suspension and color, point
From the recognition result that the material transmittance that column uses influences above-mentioned identification separating interface.
For in correlation technique, for identification separating interface accuracy be vulnerable to ambient light, suspension color and
Separate column material light transmittance influence, and then cause identify separating interface accuracy it is relatively low the technical issues of, at present not yet
It is proposed effective solution.
The content of the invention
The application provides a kind of detection method and device of separating interface, to solve to identify separating interface in correlation technique
Accuracy is vulnerable to the influence of the light transmittance of ambient light, the color of suspension and separation column material, and then identification is caused to separate
The problem of accuracy at interface is relatively low.
According to the one side of the application, a kind of detection method of separating interface is provided.This method is used for splitter
In interface be detected, including：The suspension in the splitter is conducted to by multiple feeding pipes corresponding multiple
In detection pipe, wherein, multiple feeding pipes are set in turn according to corresponding predetermined depth in the splitter, wherein, it is more
A detection pipe is positioned over same level；Gather the elevation information of suspension level in multiple detection pipes；According to more
The elevation information of suspension level in a detection pipe obtains the interface location of suspension in the splitter.
Optionally, the predetermined depth of multiple feeding pipes differs identical preset height successively.
Optionally, the suspension in the splitter is being conducted in corresponding multiple detection pipes by multiple feeding pipes
Afterwards, the method further includes：The position of multiple detection pipes is adjusted, makes the suspension liquid in multiple detection pipes
Face is located at the 4/5 of the height of corresponding detection pipe between 1/3.
Optionally, the elevation information according to suspension level in multiple detection pipes, obtains and suspends in the splitter
The interface location of liquid further includes：According to the height of suspension level in multiple detection pipes, multiple feeding pipes are obtained
According to the suspension density of multiple feeding pipe lower end areas, it is default to obtain two satisfactions for the suspension density of lower end area
The feeding pipe of condition, wherein, point of suspension in two feeding pipe corresponding predetermined depth expression splitters
Interface location.
Optionally, the preset condition is：The predetermined depth difference preset height of two feeding pipes, and described in two
The difference of suspension density in feeding pipe is maximum.
Optionally, the elevation information of suspension level further includes in the multiple detection pipes of acquisition：Shoot multiple institutes
The liquid level of suspension in detection pipe is stated, obtains image information；The characteristics of image in described image information is extracted, and to described
Characteristics of image carries out gray proces, the characteristics of image that obtains that treated, wherein, described image feature includes hanging in the detection pipe
The liquid level of turbid
According to the another aspect of the application, a kind of detection device of separating interface is provided.The device is used for splitter
In interface be detected, including：Detection unit, including multiple detection pipes, and multiple detection pipes are positioned over same water
Plane, for detecting density of the suspension at different predetermined depths in the splitter；Onunit, including multiple feedings
Pipe, multiple feeding pipes are set in turn according to corresponding predetermined depth in the splitter, and correspondingly connected multiple institutes
Detection pipe is stated, for the suspension in the splitter to be conducted to corresponding multiple detections by multiple feeding pipes
Guan Zhong；Collecting unit, for gathering the elevation information of suspension level in multiple detection pipes；Interface recognition unit, foundation
The elevation information of suspension level in multiple detection pipes obtains the interface location of suspension in the splitter.
Optionally, the predetermined depth of multiple feeding pipes differs identical preset height successively.
Optionally, described device further includes：Adjustment unit, for will be in the splitter by multiple feeding pipes
Suspension is conducted to after corresponding multiple detection pipes, adjusts the position of multiple detection pipes, is made multiple described
Suspension liquid level in detection pipe is located at the 4/5 of the height of the corresponding detection pipe between 1/3.
Optionally, the collecting unit further includes：Camera, for shooting the liquid level of suspension in multiple detection pipes
Highly, image information is obtained；Image processing module, for shooting the liquid level of suspension in the detection pipe in camera simultaneously
After obtaining image information, the characteristics of image in described image information is extracted, and gray proces are carried out to described image feature, is obtained
To treated characteristics of image, wherein, described image feature includes the liquid level of suspension in the detection pipe.
Optionally, the interface recognition unit further includes：First interface identification module, for according to multiple detection pipes
The height of middle suspension level, obtains the suspension density of multiple feeding pipe lower end areas, and second contact surface identification module is used
In the suspension density according to multiple feeding pipe lower end areas, two feeding pipes for meeting preset condition are obtained,
In, the interface location of suspension in two feeding pipe corresponding predetermined depth expression splitters.
Optionally, the preset condition is：The predetermined depth difference preset height of two feeding pipes, and, two institutes
The difference for stating the suspension density in feeding pipe is maximum.
By the application, using following steps：The suspension in splitter is conducted to by multiple feeding pipes corresponding
In multiple detection pipes, wherein, multiple feeding pipes are set in turn according to corresponding predetermined depth in splitter, wherein, Duo Gejian
Test tube is positioned over same level；Gather the elevation information of suspension level in multiple detection pipes；It is hanged according in multiple detection pipes
The elevation information of supernatant liquid liquid level obtains the interface location of suspension in splitter, solves identification separation circle in correlation technique
The accuracy in face is vulnerable to the influence of the light transmittance of ambient light, the color of suspension and separation column material, and then causes to identify
The problem of accuracy of separating interface is relatively low.And then accurately identify the effect of separating interface.
Description of the drawings
The attached drawing for forming the part of the application is used for providing further understanding of the present application, the schematic reality of the application
Example and its explanation are applied for explaining the application, does not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the flow chart according to the detection method of separating interface provided by the embodiments of the present application；
Fig. 2 is the structure diagram according to the detection device of separating interface provided by the embodiments of the present application；
Fig. 3 is surveyed according to the adjacent L tube bottom end regions density of the detection method of separating interface provided by the embodiments of the present application
Measure schematic diagram；
Fig. 4 is suspension depth-density meter one according to the detection method of separating interface provided by the embodiments of the present application；
Fig. 5 is suspension depth-density meter two according to the detection method of separating interface provided by the embodiments of the present application；
Fig. 6 is suspension depth-density meter three according to the detection method of separating interface provided by the embodiments of the present application；With
And
Fig. 7 is the schematic diagram according to the detection device of separating interface provided by the embodiments of the present application.
It should be noted that：In fig. 2, including splitter 1, splitter hypomere 19, splitter stage casing 18, splitter epimere
17th, the hose 6 of separating interface 2, bottom valve 20, feeding pipe 3, fixing clasp 4, spillwag chute 21, connection feeding pipe and detection pipe, detection
Pipe 5, babinet 7, camera 8, motor 16, controller 15, motor manage 14, interface display 11, interface identifies 10, image procossing 9,
Data storage 13.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to which those skilled in the art is made to more fully understand application scheme, below in conjunction in the embodiment of the present application
The technical solution in the embodiment of the present application is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of the application part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model of the application protection
It encloses.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that it so uses
Data can exchange in the appropriate case, so as to embodiments herein described herein.In addition, term " comprising " and " tool
Have " and their any deformation, it is intended that cover non-exclusive include.
According to an embodiment of the present application, a kind of detection method of separating interface is provided.
Fig. 1 is the flow chart according to the detection method of the separating interface of the embodiment of the present application.As shown in Figure 1, this method bag
Include following steps：
Suspension in splitter is conducted in corresponding multiple detection pipes by step S102 by multiple feeding pipes,
In, multiple feeding pipes are set in turn according to corresponding predetermined depth in splitter, wherein, multiple detection pipes are positioned over same water
Plane.
Step S104 gathers the elevation information of suspension level in multiple detection pipes.
Step S106, according to the elevation information of suspension level in multiple detection pipes, suspension divides in acquisition splitter
Interface location.
It identifies that separating interface needs to carry out shooting processing to separation suspension in the related art, and content of shooting is carried out
Analyzing and processing identifies the position of separating interface.For above-mentioned technical proposal, usually occur because the interference of ambient light causes nothing
The depth of the color for happening and separating suspension and color that method accurately identifies the position of separating interface ties identification
Fruit has tremendous influence, in addition, fairly large experiment or the splitter of process units may use stainless steel, exists
The problem of can not imaging, although perforate can solve the problems, such as this on stainless steel, influences equipment intensity.
In addition, the material of splitter is necessary for transparent material, the above method can be used to identify separating interface.
And in the detection method of separating interface provided by the embodiments of the present application, it will be in splitter by multiple feeding pipes
Suspension is conducted in corresponding multiple detection pipes, wherein, multiple feeding pipes are set in turn in point according to corresponding predetermined depth
From in column, wherein, multiple detection pipes are positioned over same level；Gather the elevation information of suspension level in multiple detection pipes；
According to the elevation information of suspension level in multiple detection pipes, the interface location of suspension in splitter is obtained, solves phase
Identify that the accuracy of separating interface is vulnerable to the light transmittance of ambient light, the color of suspension and separation column material in the technology of pass
Influence, so cause identify separating interface accuracy it is relatively low the problem of.By setting feeding pipe and detection pipe, suspension is obtained
The pressure information of middle different height, and then the pressure information according to different height liquid level in suspension carries out certain calculating, obtains
It takes the density information of different height liquid level in suspension, and then accurately identifies the effect of separating interface.
Meanwhile the detection method of separating interface provided by the embodiments of the present application do not limit splitter material whether be
Bright material.
It should be noted that：Consider to need slurry is avoided to block to happen, feeding pipe preferably uses diameter 8mm or 6mm
Lucite tube, can be according to splitter diameter and for large-scale splitter, the preferential organic glass for selecting diameter bigger
The corrosion-resistant metal materials pipes such as plastic tube or the stainless steel of some strength are managed or have, in addition, feeding pipe can curve inverted L-shaped
Shape.
It, can for the ease of the follow-up density information that different height liquid level in suspension is obtained according to liquid level in detection pipe
Selection of land, in the detection method of separating interface provided by the embodiments of the present application, the predetermined depth of multiple feeding pipes differs phase successively
Same preset height.
Preset height is differed by the predetermined depth for making multiple feeding pipes so that the predetermined depth of multiple feeding pipes has
Certain rule.That is, after the concentration of different predetermined depths is obtained by detecting level of the liquid in the tube, due to multiple feeding pipes
Predetermined depth has certain rule, gets the density information of uniform depth liquid level, and then convenient for according to multiple uniform depths pair
The density information answered obtains the suspension depth intervals of suspension density mutation.
Fig. 4 is suspension depth-density meter one according to the detection method of separating interface provided by the embodiments of the present application, such as
Shown in Fig. 4, the abscissa of Fig. 4 represents the predetermined depth of multiple feeding pipes, wherein, the depth profile is uniform (i.e. difference is identical),
The ordinate of Fig. 4 represents density value of the suspension at corresponding predetermined depth, the information based on Fig. 4, it is easy to obtain suspended
The suspension depth intervals of liquid-tight degree mutation, i.e., the suspension depth intervals of suspension density mutation are between " 6 to 7 ".
It avoids since the predetermined depth difference of feeding pipe is larger, and is unevenly distributed, lead to not obtain exactly outstanding
The suspension depth intervals of turbid density mutation happen.
After by multiple feeding pipes, the suspension in splitter is conducted in corresponding multiple detection pipes, Duo Gejian
Test tube connects the suspension of different depth, and then the density of multiple detection pipes connection solution differs, on this basis, multiple
Liquid level in detection pipe can represent the density value of suspension different depth to a certain extent.
In order to more clearly demonstrate the liquid level in multiple detection pipes, optionally, at provided by the embodiments of the present application point
From in the detection method at interface, the suspension in splitter is being conducted in corresponding multiple detection pipes by multiple feeding pipes
Afterwards, this method further includes：The position of multiple detection pipes is adjusted, the suspension liquid level in multiple detection pipes is made to be located at and is corresponded to
Detection pipe height 4/5 between 1/3.
By adjusting the position of multiple detection pipes, the suspension liquid level in multiple detection pipes is made to be located at corresponding detection
To between 1/3 at the 4/5 of the height of pipe, the liquid level clearly shown in multiple detection pipes is reached, convenient for subsequently adopting
Collect the elevation information of suspension level in multiple detection pipes.
Simultaneously, it is thus also avoided that since the position of detection pipe is incorrect, cause there are the liquid levels of detection pipe to be located at detection tube top
The liquid level of portion (or more than top) or detection pipe is located at happening for detection bottom of the tube (or bottom is once), herein special feelings
Under condition, it can not ensure that the liquid level of detection pipe is really located at detection bottom of the tube or top, that is, herein in special circumstances, detection pipe
Liquid level theoretically it is possible that more than detection bottom of the tube or top, only due to actual conditions do not allow and lead to not show
Out.
For the liquid level of solution in efficient acquisition detection pipe, optionally, at provided by the embodiments of the present application point
From in the detection method at interface, the elevation information for gathering suspension level in multiple detection pipes further includes：Shoot multiple detection pipes
The liquid level of middle suspension obtains image information；The characteristics of image in image information is extracted, and gray scale is carried out to characteristics of image
Processing, the characteristics of image that obtains that treated, wherein, characteristics of image includes the liquid level of suspension in detection pipe.
By shooting the liquid level of suspension in multiple detection pipes, image information is obtained；And then it extracts in image information
Characteristics of image, and to characteristics of image carry out gray proces, obtain including the liquid level of suspension in detection pipe image spy
Sign.The liquid level of solution in accurate brief acquisition detection pipe, and the acquisition methods pair of the detection pipe liquid level are reached
The factors such as solution colour and the depth and background light have no excessive requirement, and then drastically increase identification separating interface
Accuracy.
It should be noted that：The liquid level of suspension in multiple detection pipes is shot, obtains the execution equipment of image information
Can be the devices such as camera.
To improve the accuracy of identification separating interface, the interference of excessive unexpected factors is avoided, optionally, is implemented in the application
In the detection method for the separating interface that example provides, multiple feeding pipes are set in turn according to predetermined depth in splitter, and multiple
Feeding pipe is uniformly distributed in along splitter inner surface in splitter.
Namely by the way that feeding pipe is made to be uniformly distributed in along splitter inner surface in splitter so that residing for feeding pipe end
Position is in a representative position, ensure that the uniformity and representativeness of sampling, avoids multiple feeding pipes and gathers
At Jiao Yi, the concentration profile in each place in splitter can not be accurately obtained, and then the feelings of separating interface can not be accurately identified
Condition occurs.
For the elevation information according to suspension level in multiple detection pipes, the interface position of suspension in splitter is obtained
It puts, optionally, in the detection method of separating interface provided by the embodiments of the present application, according to suspension level in multiple detection pipes
Elevation information, obtain the interface location of suspension in splitter and further include：According to suspension level in multiple detection pipes
Highly, the suspension density of multiple feeding pipe lower end areas is obtained, according to the suspension density of multiple feeding pipe lower end areas, is obtained
Two feeding pipes for meeting preset condition are taken, wherein, the corresponding predetermined depth of two feeding pipes represents suspension in splitter
Interface location.
By fundamental formular P=ρ × g × h, formula can be obtained by carrying out a series of reckoningsIt can be according to inspection
The liquid level of test tube and the liquid level of feeding pipe obtain the density value in suspension somewhere in splitter.It is and then simple
And the accurate technique effect that must obtain separating interface.
Optionally, in the detection method of separating interface provided by the embodiments of the present application, preset condition is：Two feeding pipes
Predetermined depth difference preset height, and the difference of the suspension density in two feeding pipes is maximum.
Operation principle based on splitter, it is known that the junction of concentrated phase and dilute phase is separating interface, therefore separating interface
Place is the region of concentration acute variation.Therefore predetermined depth difference preset height, and the difference of corresponding suspension density is maximum
Two feeding pipes, corresponding predetermined depth represents the interface location of suspension in splitter.
Further, since the close phase of suspension density in the liquid level of detection pipe predetermined depth region corresponding with feeding pipe
It closes, therefore, when the liquid-column height of the corresponding detection pipe of feeding pipe of two predetermined depth difference preset heights is poor than other phases two
When the liquid-column height difference of the corresponding detection pipe of feeding pipe of a predetermined depth difference preset height is larger, you can determine that parting surface exists
Between the corresponding predetermined depth of above-mentioned feeding pipe.
The device connection of the detection method suitable for separating interface of the present invention is made with reference to another embodiment
Explanation：
Fig. 2 is the structure diagram according to the detection device of separating interface provided by the embodiments of the present application.As shown in Fig. 2,
The specific implementation mounting means of the embodiment is as follows：
First, feeding pipe is inserted into splitter from shallow to deep, and the insertion depth degree according to feeding pipe is numbered
Processing is, it is necessary to which explanation is：Feeding pipe is being expected near separating interface, equal along splitter inner surface according to the difference in height of Δ H
Cloth, as shown in Figure 3.
It should be noted that：First, feeding pipe can be fixed by the fixing clasp being arranged in splitter,
Secondary, feeding pipe preferentially selects diameter 8mm or 6mm, and curves the lucite tube of inverted l shape, and finally, Δ H is usually set to
10mm~150mm, and Δ H is determined according to factors such as splitter diameter, control accuracies, and feeding pipe generally with
Inner surface distance 20mm in the middle part of splitter.
Secondly, multiple feeding pipes are sequentially connected by detection from left to right by insertion depth from shallow to deep by hose
Pipe, wherein, detection pipe rear sets the tablet that has powerful connections, and front is provided with camera, and the acquisition than just becoming apparent from includes detection
The image information of pipe liquid level.
It should be noted that：It, optionally, can be by detection pipe, background tablet and camera shooting for the ease of the movement of detection pipe
Head is placed in a certain device, and the device can be moved accordingly, which can be certain babinet, and then simultaneously
Achieve the effect that shading.
Finally, by components such as the same data storage of camera, image procossing, image display, motor management, controller and motors
It is sequentially connected.
At this point, completion is connected suitable for the device of the detection method of separating interface.
The workflow principle of the detection method of the separating interface of the present invention is made with reference to another embodiment
It is bright：
First, the water-filling into splitter, for the ease of obtaining the liquid level of representative inspection pipe, adjustment detection
Pipe height makes liquid-column height highly locate in detection pipe 1/3, and adjusts camera position, enables the straight alignment inspection of camera lens height
At test tube 1/3, camera lens is laterally aligned among detection pipe, and longitudinally adjusted camera lens makes camera lens be in camera shooting clearly away from detection pipe distance
Clear position.
It should be noted that when splitter is full of water, the concentration inside splitter is homogeneous, without pressure differential, detection pipe
The interfacial level of upper display should be identical.
Further, from upper feed inlet be added continuously comprising there are two types of solid particle suspension slurry, bottom from
Water inlet is continuously injected into clear water by certain speed, forms the constantly incremental concentration ladder from top to lower part in splitter at this time
Degree, when not forming separating interface, this concentration gradient is uniform, is shown in detection pipe, forms from left to right oblique
Upward fluid column connects fluid column peak, forms straight line.
Further, bottom valve aperture is gradually reduced, crystal grain exclusion at this time is obstructed, and is gathered in the lower part of separation cylinder simultaneously
A concentrated phase region is formed, forms a Fludized boiling bed, and ebullated bed top is dilute-phase zone, material contained by the region is main
It is crystal (and hydroxide).And the intersection of concentrated phase and dilute phase is separating interface, i.e., is concentration play at separating interface
Strong variation zone is shown on pipe row, i.e., the liquid-column height of two neighboring pipe row varies widely.
Further, the liquid level of detection pipe is shot by camera, to the video image of camera outflow
Certain grayvalue transition is carried out, the different liquid levels of the upper detection pipe of pipe row are calculated by certain algorithm.
It should be noted that：Since the calculating process of a position must be completed within two frame period times, video
Frame per second will be set suitably, be traditionally arranged to be 12-18 frames/second.
Further, the suspension density of adjacent feeding pipe lower end area is calculated.
As an optional embodiment, the calculation for calculating the suspension density of adjacent feeding pipe lower end area can
Think the following formula：
Feeding pipe end pressure value：P=(HFeeding pipe+hDetection pipe)×ρDetection pipe×g (1·1)
Multiple feeding pipe L is made to correspond to multiple predetermined depth H, and predetermined depth is separated by preset height Δ H, makes multiple feeding pipes
L corresponds to multiple detection pipe G, and the liquid level h of corresponding detection pipe.
That is, feeding pipe Ln, Ln+1 ... correspond to predetermined depth Hn, Hn+1 ..., corresponding multiple detection pipes Gn, Gn+
1 ..., liquid level hn, hn+1 ... of corresponding detection pipe
Wherein, arbitrary Hn and Hn+1 differences Δ H, hn and hn+1 differ Δ hn.
At this point, Pn+1=(Hn+1+hn+1)×ρDetection pipe×g (1·2)
Pn=(Hn+hn)×ρDetection pipe×g (1·3)
Pn+1-Pn=(Δ H+ Δs hn)×ρDetection pipe×g (1·4)
Average density value in suspension between feeding pipe end feeding pipe end adjacent thereto：
Pn+1-Pn=Δ H × ρFeeding pipe×g (1·5)
At this point, with reference to formula (14) and formula (15), can obtain：
Pn+1-Pn=Δ H × ρFeeding pipe× g=(Δ H+ Δs hn)×ρDetection pipe×g (1·6)
ΔH×ρFeeding pipe× g=(Δ H+ Δs hn)×ρDetection pipe×g (1·7)
(ΔH+Δhn)×ρDetection pipe× g=Δs H × ρFeeding pipe×g (1·8)
(thinking ρ 1=1*103kg/m3 in this place)
(ΔH+Δhn)=Δ H × ρFeeding pipe (1·9)
Further, according to above-mentioned formula (110), the suspension between multiple feeding pipes feeding pipe adjacent thereto is obtained
Middle average density value, as shown in table 1, and by its drafting pattern picture, as shown in figure 4, its ρFeeding pipe(adjacent ρ 2 is worth phase at the mutation of value
Poor maximum), ρFeeding pipeThe average of insertion depth (predetermined depth) H of corresponding adjacent feeding pipe is separating interface position.
It should be noted that：For separating interface between sequence number 6,7, corresponding table 1 understands that separating interface exists in Fig. 4
15mm or so；For separating interface between sequence number 5,6, corresponding table 1 understands that separating interface is in -15mm or so in Figure 5；In Fig. 6
For middle separating interface between sequence number 4,5, corresponding table 1 understands that separating interface is in -45mm or so.
The corresponding density data of different feeding pipes at 1 three time points of table
It should be noted that：Section in different times, the position of separating interface are different.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is performed in computer system, although also, show logical order in flow charts, it in some cases, can be with not
The order being same as herein performs shown or described step.
The embodiment of the present application additionally provides a kind of detection device of separating interface, it is necessary to explanation, the embodiment of the present application
The detection device of separating interface can be used for performing the detection method for separating interface that is provided of the embodiment of the present application.With
Under the detection device of separating interface provided by the embodiments of the present application is introduced.
Fig. 7 is the schematic diagram according to the detection device of the separating interface of the embodiment of the present application.As shown in fig. 7, the device bag
It includes：Detection unit 71, onunit 73, collecting unit 75 and interface recognition unit 77.
Detection unit 71, including multiple detection pipes, and multiple detection pipes are positioned over same level, for detecting splitter
Density of the middle suspension at different predetermined depths.
Onunit 73, including multiple feeding pipes, multiple feeding pipes are set in turn in separation according to corresponding predetermined depth
In column, and correspondingly connected multiple detection pipes, it is corresponding for being conducted to the suspension in splitter by multiple feeding pipes
In multiple detection pipes.
Collecting unit 75, for gathering the elevation information of suspension level in multiple detection pipes.
Interface recognition unit 77 according to the elevation information of suspension level in multiple detection pipes, is obtained and suspended in splitter
The interface location of liquid.
Optionally, in the detection device of separating interface provided by the embodiments of the present application, the predetermined depth of multiple feeding pipes
Identical preset height is differed successively.
Optionally, in the detection device of separating interface provided by the embodiments of the present application, which further includes：It adjusts single
Member after the suspension in splitter is conducted to corresponding multiple detection pipes by multiple feeding pipes, adjusts multiple inspections
The position of test tube makes the suspension liquid level in multiple detection pipes be located at the 4/5 of the height of corresponding detection pipe at 1/3
Between.
Optionally, in the detection device of separating interface provided by the embodiments of the present application, collecting unit 75 further includes：Camera shooting
Head for shooting the liquid level of suspension in multiple detection pipes, obtains image information；Image processing module, for imaging
The liquid level of suspension and after obtaining image information in head shot detection pipe, extracts the characteristics of image in image information, and
Gray proces are carried out to characteristics of image, the characteristics of image that obtains that treated, wherein, characteristics of image includes suspension in detection pipe
Liquid level.
Optionally, in the detection device of separating interface provided by the embodiments of the present application, interface recognition unit 77 further includes：
First interface identification module for the height according to suspension level in multiple detection pipes, obtains multiple feeding pipe lower end areas
Suspension density, second contact surface identification module for the suspension density according to multiple feeding pipe lower end areas, obtains two
Meet the feeding pipe of preset condition, wherein, the corresponding predetermined depth of two feeding pipes represents the interface of suspension in splitter
Position.
Optionally, in the detection device of separating interface provided by the embodiments of the present application, preset condition is：Two feeding pipes
Predetermined depth difference preset height, and, the difference of the suspension density in two feeding pipes is maximum.
The detection device of separating interface provided by the embodiments of the present application, by detection unit 71, including multiple detection pipes, and
Multiple detection pipes are positioned over same level, for detecting density of the suspension at different predetermined depths in splitter；Conducting
Unit 73, including multiple feeding pipes, multiple feeding pipes are set in turn according to corresponding predetermined depth in splitter, and accordingly
Multiple detection pipes are connected, for the suspension in splitter to be conducted in corresponding multiple detection pipes by multiple feeding pipes；
Collecting unit 75, for gathering the elevation information of suspension level in multiple detection pipes；Interface recognition unit 77, according to multiple inspections
The elevation information of suspension level in test tube obtains the interface location of suspension in splitter, solves in correlation technique and know
The accuracy of other separating interface is vulnerable to the influence of the light transmittance of ambient light, the color of suspension and separation column material, and then
Cause to identify the problem of accuracy of separating interface is relatively low, and then accurately identify the effect of separating interface.
It these are only embodiments herein, be not limited to the application.To those skilled in the art,
The application can have various modifications and variations.All any modifications made within spirit herein and principle, equivalent substitution,
Improve etc., it should be included within the scope of claims hereof.
Claims (12)
1. a kind of detection method of separating interface, for being detected to the interface in splitter, which is characterized in that including：
The suspension in the splitter is conducted in corresponding multiple detection pipes by multiple feeding pipes, wherein, Duo Gesuo
Feeding pipe is stated to be set in turn in the splitter according to corresponding predetermined depth, wherein, multiple detection pipes are positioned over together
One horizontal plane；
Gather the elevation information of suspension level in multiple detection pipes；
According to the elevation information of suspension level in multiple detection pipes, the interface position of suspension in the splitter is obtained
It puts.
2. according to the method described in claim 1, it is characterized in that, the predetermined depth of multiple feeding pipes differs identical successively
Preset height.
3. according to the method described in claim 1, it is characterized in that, will be suspended in the splitter by multiple feeding pipes
After liquid is conducted in corresponding multiple detection pipes, the method further includes：
The position of multiple detection pipes is adjusted, the suspension liquid level in multiple detection pipes is made to be located at corresponding detection
To between 1/3 at the 4/5 of the height of pipe.
4. according to the method described in claim 3, it is characterized in that, height according to suspension level in multiple detection pipes
Information, the interface location for obtaining suspension in the splitter further include：
According to the height of suspension level in multiple detection pipes, the suspended liquid-tight of multiple feeding pipe lower end areas is obtained
Degree,
According to the suspension density of multiple feeding pipe lower end areas, two feeding pipes for meeting preset condition are obtained,
Wherein, the corresponding predetermined depth of two feeding pipes represents the interface location of suspension in the splitters.
5. according to the method described in claim 4, it is characterized in that, the preset condition is：Two feeding pipes it is default
Depth differs preset height, and the difference of the suspension density in two feeding pipes is maximum.
6. according to the method described in claim 1, it is characterized in that, described gather suspension level in multiple detection pipes
Elevation information further includes：
The liquid level of suspension in multiple detection pipes is shot, obtains image information；
The characteristics of image in described image information is extracted, and gray proces are carried out to described image feature, the figure that obtains that treated
As feature, wherein, described image feature includes the liquid level of suspension in the detection pipe.
7. a kind of detection device of separating interface, for being detected to the interface in splitter, which is characterized in that including：
Detection unit, including multiple detection pipes, and multiple detection pipes are positioned over same level, for detecting the separation
Density of the suspension at different predetermined depths in column；
Onunit, including multiple feeding pipes, multiple feeding pipes are set in turn in described point according to corresponding predetermined depth
From in column, and correspondingly connected multiple detection pipes, for will be suspended in the splitter by multiple feeding pipes
Liquid is conducted in corresponding multiple detection pipes；
Collecting unit, for gathering the elevation information of suspension level in multiple detection pipes；
Interface recognition unit according to the elevation information of suspension level in multiple detection pipes, is obtained in the splitter and hanged
The interface location of supernatant liquid.
8. device according to claim 7, which is characterized in that the predetermined depth of multiple feeding pipes differs identical successively
Preset height.
9. device according to claim 7, which is characterized in that described device further includes：
Adjustment unit, it is corresponding multiple described for being conducted to the suspension in the splitter by multiple feeding pipes
After detection pipe, the position of multiple detection pipes is adjusted, the suspension liquid level in multiple detection pipes is made to be located at pair
To between 1/3 at the 4/5 of the height for the detection pipe answered.
10. device according to claim 7, which is characterized in that the collecting unit further includes：
Camera for shooting the liquid level of suspension in multiple detection pipes, obtains image information；
Image processing module, for the liquid level of suspension in the detection pipe is shot in camera and obtain image information it
Afterwards, the characteristics of image in described image information is extracted, and gray proces are carried out to described image feature, the image that obtains that treated
Feature, wherein, described image feature includes the liquid level of suspension in the detection pipe.
11. device according to claim 9, which is characterized in that the interface recognition unit further includes：
First interface identification module for the height according to suspension level in multiple detection pipes, obtains multiple described take
The suspension density of expects pipe lower end area,
Second contact surface identification module for the suspension density according to multiple feeding pipe lower end areas, obtains two satisfactions
The feeding pipe of preset condition, wherein, suspension in two feeding pipe corresponding predetermined depth expression splitters
Interface location.
12. according to the devices described in claim 11, which is characterized in that the preset condition is：Two feeding pipes it is pre-
If depth differs preset height, and, the difference of the suspension density in two feeding pipes is maximum.
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Application publication date: 20180529 |