CN116253491B - Method, device, equipment and storage medium for determining flocculation precipitation efficiency - Google Patents
Method, device, equipment and storage medium for determining flocculation precipitation efficiency Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000003860 storage Methods 0.000 title claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 189
- 238000004062 sedimentation Methods 0.000 claims abstract description 165
- 238000012360 testing method Methods 0.000 claims abstract description 160
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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Abstract
The invention discloses a method, a device, equipment and a storage medium for determining flocculation precipitation efficiency. The method comprises the following steps: the method comprises the steps of obtaining the depth of a plurality of selected test points on a target cross section of a sedimentation tank and the corresponding slurry density before and after slurry flocculation treatment; the plurality of test points selected on each target cross section are positioned on a plumb line; and determining flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment. The invention can solve the problem of inaccurate flocculation precipitation efficiency test of the sedimentation tank, and improves the accuracy of determining the flocculation precipitation efficiency.
Description
Technical Field
The invention relates to the technical field of slurry treatment, in particular to a method, a device, equipment and a storage medium for determining flocculation precipitation efficiency.
Background
A large amount of waste mud which cannot be recycled is generated in the construction process of a large-scale construction project, so that the construction site is occupied, and the surrounding environment is damaged. In tunnel engineering construction, soil is carried back by the configured low-specific gravity slurry during slurry shield tunneling, and the returned waste slurry contains a large amount of particles which cannot be directly discharged, so that the slurry can be transported or discharged after solid-liquid phase separation in the treatment modes of rotational flow, precipitation or flocculation and the like. Therefore, sedimentation and flocculation treatment in shield engineering have great influence on the solid-liquid phase separation efficiency of the slurry, and directly influence the total cost of the slurry treatment.
As the overflow slurry after large particle screening and cyclone treatment is extremely slow in sedimentation, simple sedimentation, flocculation sedimentation or flocculation filter pressing treatment is often adopted for the slurry after cyclone separation in order to accelerate solid-liquid separation. The flocculation precipitation method has no filter pressing operation, has higher difficulty than flocculation filter pressing, and needs to test not only the solid phase content (namely bottom sediment) but also the water content (or density) so as to calculate the proportion and the cost of outward transportation.
In the sedimentation process of slurry, particularly after flocculation operation is performed by using a flocculating agent, each layer of slurry is changed more complicated in the sedimentation process, so that the error estimation of flocculation sedimentation efficiency of a sedimentation tank is easily caused, the total cost and efficiency of slurry treatment are further affected, and even the construction progress is delayed.
Disclosure of Invention
The invention provides a method, a device, equipment and a storage medium for determining flocculation precipitation efficiency, which are used for solving the problem of inaccurate flocculation precipitation efficiency of a precipitation tank, improving the accuracy of determining the flocculation precipitation efficiency, and avoiding the phenomenon that the total cost and the efficiency of slurry treatment are influenced by the flocculation precipitation efficiency and the construction progress is delayed.
According to an aspect of the present invention, there is provided a method of determining flocculation precipitation efficiency, the method comprising:
the method comprises the steps of obtaining the depth of a plurality of selected test points on a target cross section of a sedimentation tank and the corresponding slurry density before and after slurry flocculation treatment; the plurality of test points selected on each target cross section are positioned on a plumb line;
And determining flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment.
According to another aspect of the present invention, there is provided an apparatus for determining flocculation precipitation efficiency, the apparatus comprising:
The acquisition module is used for acquiring the depths of a plurality of selected test points on the target cross section of the sedimentation tank and the corresponding slurry densities before and after the slurry flocculation treatment; the plurality of test points selected on each target cross section are positioned on a plumb line;
And the determining module is used for determining the flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of determining flocculation precipitation efficiency as described in any of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to perform the method of determining flocculation precipitation efficiency according to any of the embodiments of the present invention.
According to the technical scheme, the depth of the plurality of test points selected on the target cross section of the sedimentation tank is obtained, and the corresponding slurry density is obtained before and after the slurry flocculation treatment; the plurality of test points selected on each target cross section are positioned on a plumb line; determining flocculation precipitation efficiency of the precipitation tank according to the slurry density and depth of each test point before and after flocculation treatment; because the density of the slurry is continuously changed in the longitudinal direction in the sedimentation process, the flocculation sedimentation efficiency of the sedimentation tank is determined by selecting the depth of a plurality of test points and the corresponding slurry density before and after flocculation treatment, the problems that the density of the slurry on the upper layer and the lower layer of the traditional sedimentation efficiency evaluation method, namely only testing the starting point and the end point, ignores a large amount of information and is inaccurate in the flocculation sedimentation efficiency of the sedimentation tank can be solved, the accuracy of determining the flocculation sedimentation efficiency is improved, and the phenomena that the total cost and the efficiency of the slurry treatment are influenced and the construction progress is delayed due to the flocculation sedimentation efficiency are avoided.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for determining flocculation precipitation efficiency according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a method for determining flocculation precipitation efficiency according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a selected test point according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of determining a first target point before flocculation treatment according to a second embodiment of the present invention;
FIG. 5 is a schematic diagram of determining a second target point after flocculation treatment according to a second embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a flocculation precipitation efficiency determining device according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device for implementing a method for determining flocculation precipitation efficiency according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the construction process of large-scale construction projects, such as tunnel engineering construction, soil is carried back through configured low specific gravity slurry during slurry shield tunneling, the specific gravity of waste slurry returned during tunneling of mudstone and siltstone is increased, the solid phase is increased, the size fraction composition is complex, and the waste slurry contains a large amount of particles below 75 mu m and cannot be directly discharged.
Normally, the alluvial siltation plain in-situ 50m is used as a main component, and the shield tunneling stratum has great influence on the composition of the reflowed mud particles, so that the particles (namely mud powder) with the particle size less than 75 mu m in the mud are larger and concentrated when tunneling the stratum such as the mud, the siltation and the like. The density (or specific gravity) of overflow slurry after large particle screening and cyclone treatment is about 1.05-1.20 g/cm 3, the content of mud powder is higher, particles such as mud powder with the powder content below 75 mu m are negatively charged in the surface of water, and a tight adsorption layer is positively charged; the Stirling engine has high potential, so that the thickness of the shear layer is high with the diameter of the particles, and positive charge transfer is slow; the particles such as mud powder are subjected to a large ratio of electrostatic force to gravity, so that the slurry is precipitated very slowly. In addition, the reactivity of mud powder and clay particles in the mud is extremely low when the mud powder and clay particles are untreated or activated, so that a flocculation precipitation treatment mode is often adopted to separate solid and liquid phases for external transportation or discharge.
Example 1
Fig. 1 is a flowchart of a method for determining flocculation precipitation efficiency according to an embodiment of the present invention, where the method may be performed by a flocculation precipitation efficiency determining device, which may be implemented in hardware and/or software, and the flocculation precipitation efficiency determining device may be configured in a terminal device. As shown in fig. 1, the method includes:
S110, acquiring depths of a plurality of selected test points on a target cross section of a sedimentation tank, and corresponding slurry densities before and after slurry flocculation treatment; the plurality of test points selected on each target cross section are located on a plumb line.
Wherein the target cross section is a cross section where flocculation precipitation efficiency needs to be calculated, and the number of target cross sections may include one cross section or a plurality of cross sections. The test points are selected points on the target cross section for calculating the flocculation efficiency of the slurry. The flocculation treatment is to make the aggregation of suspended particles in slurry bigger and accelerate the aggregation of particles. Specifically, a plumb line is selected from one point on each target cross section, test points of the target cross section are selected along the plumb line direction according to a certain interval distance, and the depth of each test point is obtained. And respectively obtaining the slurry density corresponding to each test point before and after the slurry flocculation treatment is carried out on the slurry in the sedimentation tank.
It will be appreciated that the maximum test depth corresponding to the selected test point should not exceed the minimum value of the respective selected target cross-sectional depths. The separation distance can be set according to the mud density and the required efficiency accuracy, and the separation distance can be reduced on a slow shear layer with rapid mud density change to realize more intensive testing.
It should be noted that the embodiments of the present invention may determine the efficiency of the flocculation and precipitation of the slurry in the entire sedimentation tank or determine the efficiency of the flocculation and precipitation of the slurry in one or more sections of the sedimentation tank. The sedimentation tank may be rectangular or curved in shape, and the embodiment of the present invention is not limited thereto. The target cross section may be a cross section at any location in the section of the sedimentation basin where the flocculation sedimentation efficiency of the slurry is to be determined, such as a cross section at a start sedimentation location, a cross section at an end sedimentation location, or a cross section at any location between the start sedimentation location and the end sedimentation location. The depth and interval of the selected test points on different target cross sections can be the same or different.
The method for obtaining the depth of each test point and the corresponding slurry density before and after flocculation treatment can be to mark the test rod according to the interval distance of the test points, bind densitometers at the marked point positions of the test rod before and after flocculation treatment respectively, and test the densities of the test points of the cross section sequentially from shallow to deep according to the depth of the test points. Wherein the densitometer can be a gamma ray densitometer, and the embodiment of the invention is not limited to the type of the densitometer.
S120, determining flocculation and precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment.
Among them, flocculation precipitation efficiency can be understood as an efficiency index for evaluating flocculation effect and precipitation effect.
Specifically, determining the corresponding flocculation precipitation degree of the sedimentation tank before and after flocculation treatment according to the depth of each test point and the corresponding slurry density before and after flocculation treatment; and determining flocculation precipitation efficiency according to flocculation precipitation degrees before and after flocculation treatment.
Illustratively, flocculation precipitation efficiency may include: flocculation efficiency and precipitation efficiency, whereby the flocculation precipitation degree may include flocculation degree and precipitation degree; the flocculation efficiency can be determined by the flocculation depth change of the corresponding sediment before and after flocculation treatment; the sedimentation efficiency can be determined by using the change of the density and quality of the sediment corresponding to different target cross sections before and after flocculation treatment. According to the technical scheme, the depth and the slurry density corresponding to each other before and after the slurry flocculation treatment are obtained through a plurality of test points selected from the target cross section of the sedimentation tank; the plurality of test points selected on each target cross section are positioned on a plumb line; determining flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment; because the density of the slurry is continuously changed in a longitudinal direction in the sedimentation process, the flocculation sedimentation efficiency of the sedimentation tank is determined by selecting the depth of a plurality of test points and the corresponding slurry density before and after flocculation treatment, and the parameter information is more abundant and more comprehensive to reflect the flocculation sedimentation efficiency; the method can solve the problems that the traditional evaluation method of the sedimentation efficiency, namely, only testing the density of the slurry at the upper layer and the lower layer of the starting point and the end point can ignore a large amount of information and the flocculation sedimentation efficiency of the sedimentation tank is inaccurate, improves the accuracy of determining the flocculation sedimentation efficiency, and avoids the phenomena that the total cost and the efficiency of slurry treatment are influenced due to the flocculation sedimentation efficiency and the construction progress is delayed.
Example two
Fig. 2 is a flowchart of a method for determining flocculation precipitation efficiency according to the second embodiment of the present invention, wherein the method is refined based on step S120 of the above embodiment. Step S120, determining flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment, wherein the method comprises the following steps: determining the sedimentation efficiency of the sedimentation tank before flocculation treatment according to the depth of each test point and the corresponding slurry density before flocculation treatment; determining the sedimentation efficiency of the sedimentation tank after flocculation treatment according to the depth of each target point and the corresponding slurry density after sedimentation treatment; and determining the flocculation efficiency of the sedimentation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment. As shown in fig. 2, the method includes:
S210, acquiring a plurality of test points selected on a target cross section of a sedimentation tank, wherein the depth and the slurry density correspond to each other before and after slurry flocculation treatment; the plurality of test points selected on each target cross section are located on a plumb line.
S220, determining the sedimentation efficiency of the sedimentation tank before flocculation treatment according to the depth of each test point and the corresponding slurry density before flocculation treatment.
Wherein, the precipitation efficiency is the precipitation amount of particles such as mud powder in mud in unit time.
Specifically, the sedimentation degree of the sedimentation tank before flocculation treatment is determined according to the depth of each test point and the corresponding slurry density before flocculation treatment, and the sedimentation efficiency of the sedimentation tank before flocculation treatment is determined according to the sedimentation degree of the sedimentation tank before flocculation treatment.
The sedimentation degree before flocculation treatment can be determined according to the mass density of the mud obtained by sedimentation of the sedimentation tank before flocculation treatment, wherein the mass density of the mud can be calculated according to the depth of each test point, the corresponding mud density of each test point before flocculation treatment and the section width of the target section corresponding to the selected test point.
S230, determining the sedimentation efficiency of the sedimentation tank after flocculation treatment according to the depth of each test point and the corresponding slurry density after sedimentation treatment.
Specifically, according to the depth of each test point and the corresponding slurry density after flocculation treatment, determining the sedimentation degree of the sedimentation tank after flocculation treatment, and according to the sedimentation degree of the sedimentation tank after flocculation treatment, determining the sedimentation efficiency of the sedimentation tank after flocculation treatment.
S240, determining the flocculation efficiency of the sedimentation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment.
Specifically, according to the depth of each test point, the corresponding slurry density before flocculation treatment and the corresponding slurry density after flocculation treatment, the change of the flocculation degree of the sedimentation tank before and after flocculation treatment is determined, so that the flocculation efficiency is determined according to the change of the flocculation degree of the sedimentation tank before and after flocculation treatment.
Illustratively, the degree of flocculation may be determined based on the depth of flocculation of the sediment in the sedimentation tank before flocculation treatment and the change in the depth of flocculation of the sediment in the sedimentation tank after flocculation treatment.
The flocculation precipitation efficiency determined by the embodiment of the invention integrates various shunt parameters to evaluate the shunt capacity and efficiency of the cyclone equipment used in the precipitation tank, the precipitation efficiency is more than 100%, and the higher the precipitation efficiency, the more obvious the precipitation effect of the slurry in the precipitation process; the flocculation efficiency is more than 100%, which indicates that flocculation is effective, the capability of slurry sedimentation treatment is improved, and the difficulty of waste slurry outward transportation is reduced; in contrast, flocculation efficiency is less than or equal to 100%, indicating that flocculation is ineffective, and flocculation operation is not matched with slurry, resulting in further water absorption of the precipitation part by flocculation operation, increased water content, and increased waste slurry transportation difficulty. It should be noted that the sedimentation efficiency and the flocculation efficiency are not necessarily connected, and when flocculation is ineffective, the sedimentation efficiency may also be increased, and in this case, too high dosage of the flocculant generally causes excessive adhesion of particles and leads to dehydration of supernatant; when flocculation is effective, the sedimentation efficiency may be reduced, and the reasons for the situation are more, including too low dosage of flocculant, abrupt change of particle size of particles in slurry, abrupt change of overflow speed into a sedimentation tank, and the like. It is therefore necessary to comprehensively evaluate the diversion capacity and efficiency of the cyclone equipment used in the sedimentation tank based on the sedimentation efficiency and flocculation efficiency. According to the technical scheme, the depth and the slurry density corresponding to each other before and after the slurry flocculation treatment are obtained through a plurality of test points selected from the target cross section of the sedimentation tank; the plurality of test points selected on each target cross section are positioned on a plumb line; determining the sedimentation efficiency of the sedimentation tank before flocculation treatment according to the depth of each test point and the corresponding slurry density before flocculation treatment; determining the sedimentation efficiency of the sedimentation tank after flocculation treatment according to the depth of each target point and the corresponding slurry density after sedimentation treatment; determining flocculation efficiency of the sedimentation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment; determining the sedimentation efficiency and flocculation efficiency before and after flocculation according to the depth of a plurality of test points and the corresponding slurry density before flocculation treatment, wherein the parameter information is more abundant and comprehensive to reflect the sedimentation efficiency and the flocculation efficiency; the flocculation precipitation efficiency can be comprehensively evaluated according to the precipitation efficiency and the flocculation efficiency, the accuracy of determining the flocculation precipitation efficiency is improved, the phenomenon that the total cost and the efficiency of slurry treatment are influenced due to the flocculation precipitation efficiency and the construction progress is delayed is avoided.
Optionally, determining flocculation efficiency of the sedimentation tank according to depths of the test points and corresponding slurry densities before and after flocculation treatment, including:
Determining a first target point with the same slurry density and depth in a first target cross section and a second target cross section according to the depth of each test point and the corresponding slurry density before flocculation treatment;
Determining a second target point with the same slurry density and depth in the first target cross section and the second target cross section according to the depth of each test point and the slurry density corresponding to the test points after flocculation treatment;
and determining the percentage of the second depth corresponding to the second target point and the first depth corresponding to the first target point as flocculation efficiency of the sedimentation tank.
Wherein the first target cross-section is a cross-section near a start-up sedimentation location of the sedimentation tank. The second target cross-section is a cross-section near the end of the sedimentation tank at the sedimentation location. The first target point is a point of the first target cross section and the second target cross section having the same mud density and depth prior to flocculation treatment. The second target point is the point of the first target cross section and the second target cross section having the same mud density and depth after flocculation treatment. The target point may be one of the test points or a point predicted from the test point to have the same mud density and depth.
Specifically, fitting is carried out according to the depth of each test point of the first target section and the corresponding slurry density before flocculation treatment to obtain a first fitting function of the slurry density relative to the depth of the test point, fitting is carried out according to the depth of each test point of the second target section and the corresponding slurry density before flocculation treatment to obtain a second fitting function of the slurry density relative to the depth of the test point, and position points which simultaneously meet the first fitting function and the second fitting function, namely the first target point, are determined;
Fitting according to the depth of each test point of the first target section and the corresponding slurry density after flocculation treatment to obtain a third fitting function of the slurry density with respect to the depth of the test point, fitting according to the depth of each test point of the second target section and the corresponding slurry density after flocculation treatment to obtain a fourth fitting function of the slurry density with respect to the depth of the test point, and determining position points which simultaneously meet the third fitting function and the fourth fitting function, namely a second target point;
and determining the percentage of the second depth corresponding to the second target point and the first depth corresponding to the first target point as flocculation efficiency of the sedimentation tank.
Optionally, the first target cross section is a cross section at a start sedimentation position of the sedimentation tank; the second target cross section is the cross section at the end of the sedimentation tank at the sedimentation position.
Specifically, the cross section of the initial sedimentation position of the sedimentation tank is taken as a first target cross section, and the cross section of the final sedimentation position of the sedimentation tank is taken as a second target cross section.
Fig. 3 is a schematic diagram of a selected test point according to a second embodiment of the present invention. As shown in fig. 3, a cross section of a settling position (i.e., a section) of the settling tank and a cross section of an ending settling position (i.e., a section) of the settling tank can be selected as target cross sections, and a plurality of points with a first interval distance not exceeding 10% of the depth from the section a to the bottom of the tank are taken along the plumb line direction of the section a as test points of the section a; taking a plurality of points with a second interval distance not exceeding 10% of the depth from the section B to the bottom of the pool along the plumb line direction of the section B as test points of the section B. And the maximum depth corresponding to the test points selected from the section A and the section B is not greater than the total depth of the section A and the total depth of the section B.
Optionally, determining a first target point having the same mud density and depth in the first target cross section and the second target cross section according to the depth of each test point and the corresponding mud density before flocculation treatment, including:
Determining a first density depth curve according to the depths of a plurality of first test points selected on the first target cross section and the corresponding slurry density before flocculation treatment;
Determining a second density depth curve according to the depths of a plurality of second test points selected on the second target cross section and the corresponding slurry densities before flocculation treatment;
an intersection point of the first density depth curve and the second density depth curve is determined as a first target point.
Specifically, a rectangular coordinate system is established by taking the slurry density as an abscissa and the test depth as an ordinate, corresponding coordinate points are determined according to the depths of a plurality of first test points selected on the cross section of a first target and the slurry density corresponding to the first test points before flocculation treatment, and the coordinate points are connected to obtain a first density depth curve; determining corresponding coordinate points according to the depths of a plurality of second test points selected on the second target cross section before flocculation treatment and the corresponding slurry density, and connecting the coordinate points to obtain a second density depth curve; determining an intersection point of the first density depth curve and the second density depth curve according to the first density depth curve and the second density depth curve; an intersection point of the first density depth curve and the second density depth curve is determined as a first target point.
In the embodiment, a corresponding density-depth curve is determined according to the depth of each test point and the corresponding slurry density before flocculation treatment, and a target point is determined according to the density-depth curve; the target point can be simply and intuitively determined, the visualization degree is improved, and the flocculation and sedimentation effects are more intuitive.
Fig. 4 is a schematic diagram illustrating a determination of a first target point before flocculation treatment according to a second embodiment of the present invention. As shown in fig. 4, a rectangular coordinate system is established with the mud density on the abscissa and the test depth on the ordinate, with the depth down to a positive value. The depth range may be the depth from the target cross section to the bottom of the tank, and the density range may be the true densities of pure water and mud (absolute dry) in the test environment, i.e., ρ Water and its preparation method to ρ Mud , typically ρ Water and its preparation method about 1000kg/m 3,ρ Mud about 2300-2800kg/m 3.l1 is the density depth curve of the first target cross section before flocculation treatment, l 2 is the density depth curve of the second target cross section before flocculation treatment, and P 12 is the first target point.
It will be appreciated that determining a second target point having the same mud density and depth in the first target cross section and the second target cross section based on the depth of each test point and the corresponding mud density after flocculation treatment comprises:
Determining a third density depth curve according to the depths of the selected first test points on the first target cross section and the corresponding slurry densities after flocculation treatment;
Determining a fourth density depth curve according to the depths of a plurality of second test points selected on the second target cross section and the corresponding slurry densities after flocculation treatment;
And determining an intersection point of the third density depth curve and the fourth density depth curve as a second target point.
Specifically, a rectangular coordinate system is established by taking the slurry density as an abscissa and the test depth as an ordinate, corresponding coordinate points are determined according to the depths of a plurality of first test points selected on the cross section of the first target and the slurry density corresponding to the first test points after flocculation treatment, and the coordinate points are connected to obtain a third density depth curve; determining corresponding coordinate points according to the depths of a plurality of second test points selected on the second target cross section and the corresponding slurry density after flocculation treatment, and connecting the coordinate points to obtain a fourth density depth curve; determining an intersection point of the third density depth curve and the fourth density depth curve according to the third density depth curve and the fourth density depth curve; and determining an intersection point of the third density depth curve and the fourth density depth curve as a second target point.
Fig. 5 is a schematic diagram of determining a second target point after flocculation treatment according to a second embodiment of the present invention. As shown in fig. 5, l 1 ' is the density depth curve of the first target section before flocculation treatment, l 2 ' is the density depth curve of the second target section before flocculation treatment, and P 12 ' is the second target point.
Optionally, determining the sedimentation efficiency of the sedimentation tank before flocculation treatment according to the depth of each test point and the corresponding slurry density before flocculation treatment, including:
Determining a first slurry mass density corresponding to the first target cross section according to the depths of the selected first test points on the first target cross section and the slurry density corresponding to the first test points before flocculation treatment;
Determining a second slurry mass density corresponding to the second target cross section according to the depths of the selected plurality of second test points on the second target cross section and the slurry density corresponding to the second test points before flocculation treatment;
The percentage of the second slurry mass density and the first slurry mass density is determined as the settling efficiency of the settling tank prior to flocculation treatment.
Wherein the first mud mass density is the mass density of the first target cross-section prior to flocculation treatment. The second mud mass density is the mass density of the second target cross section prior to flocculation treatment. The mass density is the product of the integral of the mud density over the depth of the test point and the cross-sectional width.
Specifically, a first function equation of density relative to depth is determined according to the depths of a plurality of first test points on a first target cross section and the corresponding slurry density before flocculation treatment, and the integral of the first function equation to the depth is multiplied by the cross section width of the first target cross section to obtain a first slurry mass density; determining a second function equation of density with respect to depth according to the depths of a plurality of second test points on the second target cross section and the corresponding slurry density before flocculation treatment, and multiplying the integral of the second function equation with respect to the depth by the cross section width of the second target cross section to obtain second slurry mass density; the percentage of the second slurry mass density and the first slurry mass density is determined as the settling efficiency of the settling tank prior to flocculation treatment.
In the embodiment, the mass density of the slurry before flocculation treatment is determined according to the depth of each test point and the corresponding slurry density before flocculation treatment, and the sedimentation efficiency of the sedimentation tank before flocculation treatment is determined according to the mass density of the slurry before flocculation treatment; the algorithm of the slurry mass density is simple and visual, and the sedimentation efficiency can be simply and rapidly determined.
Illustratively, assuming that the cross-sectional width of the first target cross-section is a 1 and the cross-sectional width of the second target cross-section is a 2, the sedimentation efficiency η p of the sedimentation tank before flocculation treatment may be:
where ρ 1 is the function equation of the test point density on the first target cross section with respect to depth, ρ 2 is the function equation of the test point density on the first target cross section with respect to depth, and h is the depth of the test point.
Optionally, determining the sedimentation efficiency of the sedimentation tank after flocculation treatment according to the depth of each test point and the depth sum of the corresponding slurry density before flocculation treatment, including:
determining a third slurry mass density corresponding to the first target cross section according to the depths of the selected first test points on the first target cross section and the slurry density corresponding to the flocculation treated first test points;
Determining a fourth slurry mass density corresponding to the second target cross section according to the depths of the selected second test points on the second target cross section and the slurry densities corresponding to the flocculation treatment;
and determining the percentage of the fourth slurry mass density and the third slurry mass density as the sedimentation efficiency of the sedimentation tank after flocculation treatment.
Wherein the third slurry mass density is the mass density of the first target cross section after flocculation treatment. The fourth mud mass density is the mass density of the second target cross-section after flocculation treatment.
Specifically, determining a third function equation of density with respect to depth according to the depths of a plurality of first test points on the first target cross section and the corresponding slurry density after flocculation treatment, and multiplying the integral of the third function equation with respect to the depth by the cross section width of the first target cross section to obtain a third slurry mass density; determining a fourth function equation of density with respect to depth according to the depths of a plurality of second test points on the second target cross section and the corresponding slurry densities after flocculation treatment, and multiplying the integral of the fourth function equation with respect to the depth by the cross section width of the second target cross section to obtain a fourth slurry mass density; and determining the percentage of the fourth slurry mass density and the third slurry mass density as the sedimentation efficiency of the sedimentation tank after flocculation treatment.
Example III
Fig. 6 is a schematic structural diagram of a flocculation precipitation efficiency determining device according to a third embodiment of the present invention. As shown in fig. 6, the apparatus includes: an acquisition module 310, a determination module 320;
The acquisition module 310 is configured to acquire a plurality of selected test points on a target cross section of the sedimentation tank, and corresponding depths and slurry densities before and after performing slurry flocculation treatment; the plurality of test points selected on each target cross section are located on a plumb line.
And a determining module 320, configured to determine flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry densities before and after flocculation treatment.
Optionally, the determining module 320 includes:
A first sedimentation efficiency determining unit, configured to determine a sedimentation efficiency of the sedimentation tank before flocculation treatment according to a depth of each test point and a slurry density corresponding to the test point before flocculation treatment;
A second sedimentation efficiency determining unit for determining the sedimentation efficiency of the sedimentation tank after flocculation treatment according to the depth of each target point and the corresponding slurry density after sedimentation treatment;
And the flocculation efficiency determining unit is used for determining the flocculation efficiency of the sedimentation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment.
Optionally, the flocculation efficiency determining unit includes:
A first target point determining subunit, configured to determine a first target point having the same mud density and depth in a first target cross section and a second target cross section according to the depth of each of the test points and the corresponding mud density before flocculation treatment;
A second target point determining subunit for determining a second target point having the same mud density and depth in the first target cross section and the second target cross section according to the depth of each test point and the corresponding mud density after flocculation treatment;
And the flocculation efficiency determining subunit is used for determining the percentage of the second depth corresponding to the second target point and the first depth corresponding to the first target point as the flocculation efficiency of the sedimentation tank.
Optionally, the first target point determining subunit is specifically configured to:
Determining a first density depth curve according to the depths of a plurality of first test points selected on the first target cross section and the corresponding slurry density before flocculation treatment;
Determining a second density depth curve according to the depths of a plurality of second test points selected on the second target cross section and the corresponding slurry densities before flocculation treatment;
And determining the first density depth curve and the second density depth curve as the first target point.
Optionally, the first precipitation efficiency determining unit is specifically configured to:
Determining a first slurry mass density corresponding to the first target cross section according to the depths of the selected first test points on the first target cross section and the slurry density corresponding to the first test points before flocculation treatment;
Determining a second slurry mass density corresponding to the second target cross section according to the depths of the selected plurality of second test points on the second target cross section and the slurry density corresponding to the second test points before flocculation treatment;
and determining the percentage of the second slurry mass density and the first slurry mass density as the sedimentation efficiency of the sedimentation tank before flocculation treatment.
Optionally, the second precipitation efficiency determining unit is specifically configured to:
determining a third slurry mass density corresponding to the first target cross section according to the depths of the selected first test points on the first target cross section and the slurry density corresponding to the flocculation treated first test points;
Determining a fourth slurry mass density corresponding to the second target cross section according to the depths of the selected second test points on the second target cross section and the slurry densities corresponding to the flocculation treatment;
And determining the percentage of the fourth slurry mass density and the third slurry mass density as the sedimentation efficiency of the sedimentation tank after flocculation treatment.
Optionally, the first target cross section is a cross section at a start sedimentation position of a sedimentation tank; the second target cross section is a cross section at the end of the sedimentation tank at the sedimentation position.
The flocculation precipitation efficiency determining device provided by the embodiment of the invention can execute the flocculation precipitation efficiency determining method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the flocculation precipitation efficiency determining method.
Example IV
Fig. 7 is a schematic structural diagram of an electronic device for implementing a method for determining flocculation precipitation efficiency according to an embodiment of the present invention. Terminal devices are intended to represent various forms of digital computers, such as laptops, desktops, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Terminal devices may also represent various forms of mobile devices such as personal digital assistants, cellular telephones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 7, the terminal device 10 includes: the first and second graphic cards 20 and 21, a display screen (included in the output unit 17), at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., in which a computer program executable by the at least one processor is stored, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the terminal device 10 can also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14. The terminal equipment is configured with a host system and at least one virtual machine system, wherein the host system is directly connected with the first display card, and the virtual machine system is directly connected with the second display card.
A plurality of components in the terminal device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the terminal device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the determination of flocculation precipitation efficiency.
In some embodiments, the method of determining flocculation precipitation efficiency may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the terminal device 10 via the ROM 12 and/or the communication unit 19. When a computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the above-described method of determining flocculation precipitation efficiency may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the flocculation precipitation efficiency determination method in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a terminal device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the terminal device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. A method of determining flocculation precipitation efficiency, the method comprising:
the method comprises the steps of obtaining the depth of a plurality of selected test points on a target cross section of a sedimentation tank and the corresponding slurry density before and after slurry flocculation treatment; the plurality of test points selected on each target cross section are positioned on a plumb line;
determining flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment;
wherein, according to the depth of each test point and the corresponding slurry density before and after flocculation treatment, determining the flocculation precipitation efficiency of the sedimentation tank comprises:
determining flocculation efficiency of the sedimentation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment;
Wherein, according to the depth of each test point and the corresponding slurry density before and after flocculation treatment, determining the flocculation efficiency of the sedimentation tank comprises:
Determining a first target point with the same slurry density and depth in a first target cross section and a second target cross section according to the depth of each test point and the corresponding slurry density before flocculation treatment;
Determining a second target point with the same slurry density and depth in the first target cross section and the second target cross section according to the depth of each test point and the slurry density corresponding to the test points after flocculation treatment;
determining the percentage of the second depth corresponding to the second target point and the first depth corresponding to the first target point as flocculation efficiency of the sedimentation tank;
Wherein the first target cross section is a cross section at a start sedimentation position of a sedimentation tank; the second target cross section is a cross section at the end of the sedimentation tank at the sedimentation position.
2. The method of claim 1, wherein determining the flocculation precipitation efficiency of the sedimentation tank based on the depth of each test point and the corresponding slurry density before and after flocculation treatment, further comprises:
determining the sedimentation efficiency of the sedimentation tank before flocculation treatment according to the depth of each test point and the corresponding slurry density before flocculation treatment;
And determining the sedimentation efficiency of the sedimentation tank after flocculation treatment according to the depth of each test point and the corresponding slurry density after sedimentation treatment.
3. The method of claim 1, wherein determining a first target point having the same mud density and depth in the first target cross-section and the second target cross-section based on the depth of each of the test points and the corresponding mud density prior to flocculation treatment comprises:
Determining a first density depth curve according to the depths of a plurality of first test points selected on the first target cross section and the corresponding slurry density before flocculation treatment;
Determining a second density depth curve according to the depths of a plurality of second test points selected on the second target cross section and the corresponding slurry densities before flocculation treatment;
And determining an intersection point of the first density depth curve and the second density depth curve as the first target point.
4. The method of claim 2, wherein determining the settling efficiency of the settling tank prior to flocculation treatment based on the depth of each of the test points and the corresponding slurry density prior to flocculation treatment comprises:
Determining a first slurry mass density corresponding to the first target cross section according to the depths of the selected first test points on the first target cross section and the slurry density corresponding to the first test points before flocculation treatment;
Determining a second slurry mass density corresponding to the second target cross section according to the depths of the selected plurality of second test points on the second target cross section and the slurry density corresponding to the second test points before flocculation treatment;
and determining the percentage of the second slurry mass density and the first slurry mass density as the sedimentation efficiency of the sedimentation tank before flocculation treatment.
5. The method of claim 2, wherein determining the settling efficiency of the settling tank after flocculation treatment based on the depth of each of the test points and the corresponding slurry density prior to flocculation treatment comprises:
determining a third slurry mass density corresponding to the first target cross section according to the depths of the selected first test points on the first target cross section and the slurry density corresponding to the flocculation treated first test points;
Determining a fourth slurry mass density corresponding to the second target cross section according to the depths of the selected second test points on the second target cross section and the slurry densities corresponding to the flocculation treatment;
And determining the percentage of the fourth slurry mass density and the third slurry mass density as the sedimentation efficiency of the sedimentation tank after flocculation treatment.
6. A flocculation precipitation efficiency determining apparatus, comprising:
The acquisition module is used for acquiring the depths of a plurality of selected test points on the target cross section of the sedimentation tank and the corresponding slurry densities before and after the slurry flocculation treatment; the plurality of test points selected on each target cross section are positioned on a plumb line;
The determining module is used for determining flocculation precipitation efficiency of the precipitation tank according to the depth of each test point and the corresponding slurry density before and after flocculation treatment;
Wherein, the determining module includes:
A flocculation efficiency determining unit, configured to determine flocculation efficiency of the sedimentation tank according to the depth of each test point and the corresponding slurry densities before and after flocculation treatment;
Wherein the flocculation efficiency determining unit includes:
A first target point determining subunit, configured to determine a first target point having the same mud density and depth in a first target cross section and a second target cross section according to the depth of each of the test points and the corresponding mud density before flocculation treatment;
A second target point determining subunit for determining a second target point having the same mud density and depth in the first target cross section and the second target cross section according to the depth of each test point and the corresponding mud density after flocculation treatment;
A flocculation efficiency determining subunit, configured to determine, as flocculation efficiency of the sedimentation tank, a percentage of the second depth corresponding to the second target point and the first depth corresponding to the first target point;
Wherein the first target cross section is a cross section at a start sedimentation position of a sedimentation tank; the second target cross section is a cross section at the end of the sedimentation tank at the sedimentation position.
7. An electronic device, the electronic device comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of determining flocculation precipitation efficiency of any of claims 1-5.
8. A computer readable storage medium storing computer instructions for causing a processor to perform the method of determining flocculation precipitation efficiency of any of claims 1-5.
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