CN114295553B - High-flux coagulation and flocculation experimental system and experimental method - Google Patents
High-flux coagulation and flocculation experimental system and experimental method Download PDFInfo
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- 238000005345 coagulation Methods 0.000 title claims abstract description 61
- 230000015271 coagulation Effects 0.000 title claims abstract description 61
- 238000002474 experimental method Methods 0.000 title claims abstract description 59
- 238000005189 flocculation Methods 0.000 title claims abstract description 31
- 230000016615 flocculation Effects 0.000 title claims abstract description 31
- 239000003814 drug Substances 0.000 claims abstract description 95
- 239000002002 slurry Substances 0.000 claims abstract description 77
- 238000004062 sedimentation Methods 0.000 claims abstract description 59
- 238000003756 stirring Methods 0.000 claims abstract description 49
- 238000002360 preparation method Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims description 38
- 238000012360 testing method Methods 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 19
- 239000008394 flocculating agent Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000013100 final test Methods 0.000 claims description 4
- 238000011002 quantification Methods 0.000 claims description 4
- 239000000701 coagulant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention relates to a high-flux coagulation flocculation experiment system and an experiment method, wherein the system comprises a plurality of groups of transparent settling tanks, the transparent settling tanks are sequentially arranged at the front end of a camera in a row, and graduation lines are printed on the transparent settling tank farthest from the camera; a parallel light source emitter is arranged on one side, far away from the camera, of the plurality of groups of transparent settling tanks; four-way valves are arranged at the filling ends of the plurality of groups of transparent settling tanks, one end of each four-way valve is connected with the medicament stirring box through a medicament variable-frequency high-flux metering pump, and the plurality of groups of transparent settling tanks respectively correspond to one inner cavity of the medicament stirring box; the slurry variable-frequency high-flux dosing pump is arranged between the slurry preparation tank and the four-way valve. The camera, the medicament variable-frequency high-flux metering pump, the slurry preparation tank, the slurry variable-frequency high-flux quantitative feeding pump, the medicament stirring box and the parallel light source emitter are electrically connected with the control computer. The invention has the advantage of no artificial interference factor sedimentation experiment, and solves the problems of large artificial error and different experimental results of the existing sedimentation experiment.
Description
Technical Field
The invention belongs to the technical field of solid-liquid separation experiments, and particularly relates to a high-flux coagulation and flocculation experiment system and an experiment method.
Background
The coagulation/flocculation sedimentation experiment is one of the basic methods of solid-liquid separation sedimentation experiments, is widely applied to the industrial fields of environmental protection, mines, metallurgy, petrifaction and the like, the sedimentation experiment can explore the proper type and the optimal dosage of water treatment additives, guide equipment selection and the like, and the current experimental means generally adopts one measuring cylinder to carry out batch experiments on different experimental conditions, namely, each experimental condition corresponds to one experimental operation; multiple groups of experiment conditions are carried out simultaneously by adopting multiple measuring cylinders, and generally, 3-6 measuring cylinders are used for carrying out multiple groups of experiment conditions simultaneously, so that the aim of reducing experiment times is fulfilled, but no matter in batch single experiment or multiple groups of simultaneous experiments, the observation of a sedimentation interface is finished by naked eyes; when a plurality of groups of simultaneous experiments are carried out, the simultaneous experiments are completed by a plurality of persons, so the two methods easily generate the following problems: 1) Some materials are difficult to visually observe the sedimentation interface, the sedimentation interfaces defined by different experimenters are different, and different experimenters can perform experiments to obtain different experimental results; 2) When the settlement time is longer (sometimes more than 24 hours or longer), the burden of the experimenter is increased, and if the experiment is continued by the midway person, the problem that different persons define different settlement interfaces is also existed; 3) In a plurality of groups of simultaneous experiments, when adding the coagulation/flocculation medicament, one person can hardly complete simultaneous addition, and if a plurality of persons complete simultaneous addition, human errors caused by different mixing degrees, adding time, adding methods and the like exist; 4) In summary, the current sedimentation experimental method has larger human errors, often causes the experimental result to deviate from the true value, and most importantly, the operation of different experimental staff is different, so that the experimental result is different from person to person. Meanwhile, along with the development of high-flux technology and image processing technology, the realization of high-flux coagulation flocculation sedimentation experiments has important significance for the accuracy and standardization of solid-liquid separation sedimentation experiments, so that a high-flux coagulation flocculation experiment system is needed.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a high-flux coagulation flocculation experimental system and an experimental method, which have the advantages of standardization and no artificial interference factor sedimentation experiment, and solve the problems of large artificial error and different experimental results from person to person in the existing sedimentation experiment; the operation is simple and convenient, and the popularization and the use are very easy.
A high-flux coagulation flocculation experiment system comprises a camera, a plurality of groups of transparent settling tanks, a medicament stirring box, a slurry preparation tank, a slurry variable-frequency high-flux quantitative feeding pump and a control computer, wherein the plurality of groups of transparent settling tanks are sequentially arranged at the front end of the camera in a row, and scale marks are printed on the transparent settling tank farthest from the camera; a parallel light source emitter is arranged at one side of the plurality of groups of transparent settling tanks, which is far away from the camera; four-way valves are arranged at the filling ends of the plurality of groups of transparent settling tanks, and one end of each four-way valve is connected with the medicament stirring box through a medicament variable-frequency high-flux metering pump; the slurry variable-frequency high-flux quantitative feeding pump is arranged between the slurry preparation tank and the four-way valve; one end of the four-way valve is externally connected with a water source; the camera, the medicament stirring box, the parallel light source emitter, the medicament frequency conversion high-flux metering pump, the slurry preparation tank and the slurry frequency conversion high-flux dosing pump are electrically connected with the control computer through signal wires.
The transparent settling tanks are four groups, and four inner cavities corresponding to the four groups of the medicament stirring tanks are formed in the medicament stirring tank.
The liquid inlet end of the medicament variable-frequency high-flux metering pump extends to the bottom of the inner cavity of the medicament stirring box.
The input end of the slurry variable-frequency high-flux quantitative feeding pump extends to the bottom of the inner cavity of the slurry preparation tank.
One side of the output end of the medicament variable-frequency high-flux metering pump is connected with the four-way valve through a pipeline.
The transparent settling tanks of the plurality of groups respectively correspond to one inner cavity of the medicament stirring box.
The control computer is internally provided with a control system, the control system comprises a control module, a data receiving module, an image processing module, a data processing module and a result output module, the control module is used for controlling the starting, the quantification and the closing of the slurry variable-frequency high-flux quantitative feeding pump according to a preset feeding value before a test, and is used for controlling the starting, the metering and the closing of the medicament variable-frequency high-flux metering pump and the starting and the stopping of a power supply of the camera, the medicament stirring box, the slurry preparation tank and the parallel light source emitter; the data receiving module is used for receiving pictures shot in the test process shot by the camera; the image processing module is used for converting the picture information data of the data receiving module into data required by the test, and the principle is that the picture information is subjected to binarization processing to obtain a solid-liquid separation interface value, and the converted data is transmitted to the data processing module; the data processing module is used for carrying out one-to-one correspondence on the recording time T of the camera corresponding to each solid-liquid separation interface value to obtain one-to-one correspondence data of the time T and the sedimentation height H, and forming a data table as a test result table; the result output module is used for drawing a test result data table into a sedimentation curve and outputting the sedimentation curve and the table together as a test result for display.
The experimental method of the high-flux coagulation flocculation experimental system specifically comprises the following steps:
step one: configuring a sample to be tested according to experimental requirements;
step two: preparing a to-be-added coagulation/flocculant, wherein the to-be-added coagulation/flocculant is a plurality of different to-be-added coagulation/flocculant or one to-be-added coagulation/flocculant is uniformly divided into a plurality of groups;
step three: placing the sample to be tested configured in the step one into a slurry preparation tank; respectively placing the coagulation/flocculant to be added prepared in the second step in the inner cavity of the medicament stirring box;
step four: the method comprises the steps that a control computer respectively sends opening instructions to a slurry variable-frequency high-flux dosing pump, a medicament variable-frequency high-flux dosing pump and a four-way valve, the slurry variable-frequency high-flux dosing pump, the medicament variable-frequency high-flux dosing pump and the four-way valve are opened, a coagulation/flocculant respectively enters corresponding transparent settling tanks through the medicament variable-frequency high-flux dosing pump, and samples to be tested enter a plurality of groups of transparent settling tanks through the slurry variable-frequency high-flux dosing pump;
when the coagulation/flocculant to be added configured in the second step is a plurality of different coagulation/flocculant to be added, the control computer controls the variable-frequency high-flux metering pump of the medicament to be added in the same adding proportion when four coagulation/flocculant are added in the second step; when the sample to be tested and four coagulation/flocculation agents are added, a control computer controls stirring parts of a slurry preparation tank and a medicament stirring box to continuously run;
when the coagulation/flocculant to be added configured in the second step is divided into a plurality of groups, the control computer controls the variable-frequency high-flux metering pump of the medicament to be added respectively in different adding proportions when four coagulation/flocculants are added in the second step;
step five: when the test sample and the four coagulation/flocculating agents are added, the control computer starts the parallel light source emitter and the camera, the moment is a timing zero point, the camera shoots a piece of picture data every a set time delta T and gives the picture data to the control computer, and the control system in the control computer processes the picture to output a data table and draws a sedimentation curve as a final test result.
The beneficial effects of the invention are as follows:
1. according to the invention, the camera, the multiple groups of transparent settling tanks, the four-way valve, the medicament variable-frequency high-flux metering pump, the medicament stirring box, the slurry preparation tank, the slurry variable-frequency high-flux quantitative feeding pump and the control computer are arranged for use in a matched manner, so that a high-flux coagulation and flocculation settling experiment can be performed, the experiment of the coagulation and flocculation experiment system is more accurate, the problems that the sedimentation experiment has large human error and the experimental result varies from person to person due to incapability of performing standardized and unmanned interference factor settling experiments when the coagulation and flocculation experiment system is used are solved, and the popularization is worth.
2. According to the invention, the scale marks are arranged, and the computer acquires accurate data of the liquid levels of the multiple groups of transparent settling tanks in the image through the camera when processing the data, so that the distortion of test results caused by the measured material density error of an experimenter can be corrected.
3. The invention can realize the high-flux coagulation flocculation experiment, and can complete a plurality of groups of coagulation flocculation sedimentation experimental data by corresponding the medicament variable-frequency high-flux metering pump and the slurry variable-frequency high-flux dosing pump to a plurality of groups of transparent sedimentation tanks through one experiment.
4. The invention receives and processes the data through a control system arranged in the control computer to obtain the feedback of the experimental result.
Drawings
Fig. 1 is a schematic structural connection diagram of a high-throughput coagulation flocculation experiment system provided by the invention (wherein a transparent sedimentation tank, a medicament stirring tank and a slurry preparation tank are in a main view direction);
fig. 2 is a schematic structural connection diagram of the high-throughput coagulation flocculation experiment system provided by the invention (wherein the transparent sedimentation tank, the medicament stirring tank and the slurry preparation tank are in a top view direction);
FIG. 3 is a graph of experimental results of example 1;
FIG. 4 is a graph of experimental results of example 2;
wherein,
the device comprises a camera, a transparent sedimentation tank, a scale mark, a four-way valve, a 4-medicament variable-frequency high-flux metering pump, a medicament stirring box, a slurry preparation tank, a slurry variable-frequency high-flux quantitative feeding pump, a control computer and a parallel light source emitter, wherein the camera is arranged at the bottom of the transparent sedimentation tank, the transparent sedimentation tank is arranged at the bottom of the transparent sedimentation tank, the scale mark is arranged at the bottom of the transparent sedimentation tank, the transparent sedimentation tank is connected with the transparent.
Detailed Description
For better explanation of the present invention, for easy understanding, the technical solution and effects of the present invention will be described in detail below by way of specific embodiments with reference to the accompanying drawings.
Example 1
As shown in fig. 1-2, a high-flux coagulation flocculation experiment system comprises a camera 1, a plurality of groups of transparent settling tanks 2, a medicament stirring tank 5, a slurry preparation tank 6, a slurry variable-frequency high-flux dosing pump 7 and a control computer 8. A plurality of groups of transparent settling tanks 2 are sequentially arranged at the front end of the camera 1 in a row, and scale marks 2-1 are printed on the transparent settling tank 2 farthest from the camera 1; a parallel light source emitter 9 is arranged at one side of the plurality of groups of transparent settling tanks 2 far away from the camera 1 and used for emitting parallel light sources; the camera 1 can obtain the real solid-liquid separation interface reading in the sedimentation test through the arranged scale marks 2-1, and the definition of the solid-liquid separation interface can be enhanced in an auxiliary manner through the arrangement of the parallel light source. Four-way valves 3 are arranged at the filling ends of the plurality of groups of transparent settling tanks 2, one end of each four-way valve 3 is connected with a medicament stirring box 5 through a medicament variable-frequency high-throughput metering pump 4, the plurality of groups of transparent settling tanks 2 respectively correspond to one inner cavity of the medicament stirring box 5, and the liquid inlet ends of the medicament variable-frequency high-throughput metering pumps 4 extend to the bottom of the inner cavity of the medicament stirring box 5; one side of the output end of the medicament variable-frequency high-throughput metering pump 4 is connected with the four-way valve 3 through a pipeline. The slurry variable-frequency high-flux dosing pump 7 is arranged between the slurry preparation tank 6 and the four-way valve 3, and the input end of the slurry variable-frequency high-flux dosing pump 7 extends to the bottom of the inner cavity of the slurry preparation tank 6. One end of the four-way valve is externally connected with a water source and used for further diluting the slurry when the experimental process is needed. In this embodiment, the transparent settling tanks 2 are four groups, and the medicament stirring tank 5 includes four inner cavities corresponding to the four groups.
The camera 1, the medicament variable-frequency high-throughput metering pump 4, the medicament stirring box 5, the parallel light source emitter 9, the slurry preparation tank 6 and the slurry variable-frequency high-throughput dosing pump 7 are electrically connected with the control computer 8 through signal wires, the camera 1 sends shot pictures to the control computer 8, and the control computer 8 can send an opening or ending working instruction to the medicament variable-frequency high-throughput metering pump 4, the stirrer and the slurry variable-frequency high-throughput dosing pump 7.
The control computer 8 is internally provided with a control system, the control system comprises a control module, a data receiving module, an image processing module, a data processing module and a result output module, the control module is used for controlling the starting, the quantification and the closing of the slurry variable-frequency high-flux quantitative feeding pump 7 according to a preset feeding value before a test, and is used for controlling the starting, the metering and the closing of the medicament variable-frequency high-flux quantitative feeding pump 4 and the starting and the stopping of the power supplies of the camera 1, the medicament stirring box 5, the slurry preparation tank 6 and the parallel light source emitter 9; the data receiving module is used for receiving pictures shot in the test process shot by the camera 1; the image processing module is used for converting the picture information data of the data receiving module into data required by the test, and the principle is that the picture information is subjected to binarization processing to obtain a solid-liquid separation interface value, the solid-liquid separation interface value is converted into a sedimentation height H, and then the converted sedimentation height H is transmitted to the data processing module; the data processing module is used for carrying out one-to-one corresponding recording on the recording time T of the camera 1 corresponding to each solid-liquid separation interface value to obtain one-to-one corresponding data of the time T and the sedimentation height H, and forming a data table as a test result table; the result output module is used for drawing a test result data table into a sedimentation curve and outputting the sedimentation curve and the table together as a test result for display.
The experimental method for carrying out experiments by adopting the high-flux coagulation flocculation experimental system specifically comprises the following steps:
step one: the sample to be tested is configured according to the experimental requirement, and the concentration of the sample to be tested in the embodiment is C. =25%.
Step two: the coagulant/flocculant to be added was prepared, and in this example, four PAM solutions of 589T, N134, AY5002, 88905h were prepared at a concentration of w/w% = 0.5%o.
Step three: placing the sample to be tested prepared in the first step into a slurry preparation tank 6; four PAM solutions 589T, N134, AY5002, 88905h prepared in step two were placed in the four inner cavities of the chemical agitation enclosure 5, respectively.
Step four: the control computer 8 respectively sends opening instructions to the slurry variable-frequency high-flux quantitative feeding pump 7, the medicament variable-frequency high-flux metering pump 4 and the four-way valve 3, the slurry variable-frequency high-flux quantitative feeding pump 7, the medicament variable-frequency high-flux metering pump 4 and the four-way valve 3 are opened, under the cooperation of the slurry variable-frequency high-flux quantitative feeding pump 7, the medicament variable-frequency high-flux metering pump 4 and the four-way valve 3, four coagulation/flocculating agents respectively enter the corresponding transparent settling tanks 2 through the medicament variable-frequency high-flux metering pump 4, and samples to be tested enter the plurality of groups of transparent settling tanks 2 through the slurry variable-frequency high-flux quantitative feeding pump 7; in the step, when four coagulation/flocculant agents are added, a control computer 8 controls a variable-frequency high-throughput metering pump 4 of the medicament to be added in the same adding proportion, and in the embodiment, the variable-frequency high-throughput metering pump is added according to the adding proportion of 50g/t for four-way valves; when the sample to be tested and the four coagulation/flocculation agents are added, the control computer 8 controls the stirring parts of the slurry preparation tank 6 and the medicament stirring tank 5 to continuously operate.
Step five: the method comprises the steps that when the addition of a sample to be tested and four coagulation/flocculant agents is finished, a control computer 8 sends an opening instruction to a camera 1 and a parallel light source emitter 9 through a control system, the camera 1 and the parallel light source emitter 9 are started, the moment is a timing zero point, the camera 1 shoots a piece of picture data every a set time delta T and gives the control computer 8, an image processing module in the control system in the control computer 8 carries out binarization processing on the picture, solid-liquid separation interface data generated after the processing, namely a sedimentation height H, is transmitted to a data processing module, the control computer automatically records the change of the sedimentation height H along with a sedimentation time T, the data processing module transmits data generated in the whole test to a result output module when the test is finished, the result output module carries out scatter diagram processing on the time T and the sedimentation height H, the sedimentation time T is taken as an X-axis abscissa, the sedimentation height H is taken as a Y-axis ordinate, and the computer is controlled to output a data table and a produced sedimentation curve is drawn as a final test result. The results of this example are shown in FIG. 3 and Table 1.
Table 1 settling results for four coagulation/flocculant in example 1 experiment
Example 2
As shown in fig. 1-2, a high-flux coagulation flocculation experiment system comprises a camera 1, a plurality of groups of transparent settling tanks 2, a medicament stirring tank 5, a slurry preparation tank 6, a slurry variable-frequency high-flux dosing pump 7 and a control computer 8. A plurality of groups of transparent settling tanks 2 are sequentially arranged at the front end of the camera 1 in a row, and scale marks 2-1 are printed on the transparent settling tank 2 farthest from the camera 1; a parallel light source emitter 9 is arranged at one side of the plurality of groups of transparent settling tanks 2 far away from the camera 1 and used for emitting parallel light sources; the camera 1 can obtain the real solid-liquid separation interface reading in the sedimentation test by arranging the scale marks 2-1, and the definition of the solid-liquid separation interface can be enhanced in an auxiliary manner by arranging the parallel light source. Four-way valves 3 are arranged at the filling ends of the plurality of groups of transparent settling tanks 2, one end of each four-way valve 3 is connected with a medicament stirring box 5 through a medicament variable-frequency high-throughput metering pump 4, the plurality of groups of transparent settling tanks 2 respectively correspond to one inner cavity of the medicament stirring box 5, and the liquid inlet ends of the medicament variable-frequency high-throughput metering pumps 4 extend to the bottom of the inner cavity of the medicament stirring box 5; one side of the output end of the medicament variable-frequency high-throughput metering pump 4 is connected with the four-way valve 3 through a pipeline. The slurry variable-frequency high-flux dosing pump 7 is arranged between the slurry preparation tank 6 and the four-way valve 3, and the input end of the slurry variable-frequency high-flux dosing pump 7 extends to the bottom of the inner cavity of the slurry preparation tank 6. One end of the four-way valve is externally connected with a water source. In this embodiment, the transparent settling tanks 2 are four groups, and the medicament stirring tank 5 includes four inner cavities corresponding to the four groups.
The output ends of the camera 1, the medicament variable-frequency high-flux metering pump 4, the medicament stirring box 5, the parallel light source emitter 9, the slurry preparation tank 6 and the slurry variable-frequency high-flux dosing pump 7 are electrically connected with the control computer 8, the camera 1 sends shot pictures to the control computer 8, and the control computer 8 can send an opening or ending working instruction to the medicament variable-frequency high-flux metering pump 4, the stirrer and the slurry variable-frequency high-flux dosing pump 7.
The control computer 8 is internally provided with a control system, the control system comprises a control module, a data receiving module, an image processing module, a data processing module and a result output module, the control module is used for controlling the starting, the quantification and the closing of the slurry variable-frequency high-flux quantitative feeding pump 7 according to a preset feeding value before a test, and is used for controlling the starting, the metering and the closing of the medicament variable-frequency high-flux quantitative feeding pump 4 and the starting and the stopping of the power supplies of the camera 1, the medicament stirring box 5, the slurry preparation tank 6 and the parallel light source emitter 9; the data receiving module is used for receiving pictures shot in the test process shot by the camera 1; the image processing module is used for converting the picture information data of the data receiving module into data required by the test, and the principle is that the picture information is subjected to binarization processing to obtain a solid-liquid separation interface value, the solid-liquid separation interface value is converted into a sedimentation height H, and then the converted sedimentation height H is transmitted to the data processing module; the data processing module is used for carrying out one-to-one corresponding recording on the recording time T of the camera 1 corresponding to each solid-liquid separation interface value to obtain one-to-one corresponding data of the time T and the sedimentation height H, and forming a data table as a test result table; the result output module is used for drawing a test result data table into a sedimentation curve and outputting the sedimentation curve and the table together as a test result for display.
The experimental method for carrying out experiments by adopting the high-flux coagulation flocculation experimental system specifically comprises the following steps:
step one: the sample to be tested is configured according to the experimental requirement, and the concentration of the sample to be tested in the embodiment is C. =25%.
Step two: the coagulant/flocculant to be added is prepared, and in the embodiment, the coagulant/flocculant to be added is AY5002 flocculant with the concentration of w/w% =0.5 per mill, and the coagulant/flocculant to be added is divided into four parts.
Step three: placing the sample to be tested prepared in the first step into a slurry preparation tank 6; and (3) respectively placing the four equally-distributed AY5002 flocculating agents prepared in the step two into four inner cavities in the medicament stirring box 5.
Step four: the control computer 8 respectively sends opening instructions to the slurry variable-frequency high-flux quantitative feeding pump 7, the medicament variable-frequency high-flux metering pump 4 and the four-way valve 3, the slurry variable-frequency high-flux quantitative feeding pump 7, the medicament variable-frequency high-flux metering pump 4 and the four-way valve 3 are opened, under the cooperation of the slurry variable-frequency high-flux quantitative feeding pump 7, the medicament variable-frequency high-flux metering pump 4 and the four-way valve 3, four coagulation/flocculating agents respectively enter the corresponding transparent settling tanks 2 through the medicament variable-frequency high-flux metering pump 4, and samples to be tested enter the plurality of groups of transparent settling tanks 2 through the slurry variable-frequency high-flux quantitative feeding pump 7; in the step, when four coagulation/flocculating agents are added, a control computer 8 controls a medicament variable-frequency high-throughput metering pump 4 to be respectively added in different adding proportions, and in the embodiment, four-way valves 3 are respectively added in adding proportions of 10g/t, 25g/t, 40g/t and 100 g/t; when the sample to be tested and the four coagulation/flocculation agents are added, the control computer 8 controls the stirring parts of the slurry preparation tank 6 and the medicament stirring tank 5 to continuously operate.
Step five: after the addition of the sample to be tested and the four groups of coagulation/flocculating agents is finished, a control computer 8 sends an opening instruction to a camera 1 and a parallel light source emitter 9 through a control system, the camera 1 and the parallel light source emitter 9 are started, the moment is a timing zero point, the camera 1 shoots a piece of picture data every a set time delta T and gives the control computer 8, an image processing module in the control system in the control computer 8 carries out binarization processing on the picture, solid-liquid separation interface data generated after the processing, namely a sedimentation height H, is transmitted to a data processing module, the control computer automatically records the change of the sedimentation height H along with the sedimentation time T, the data processing module transmits data generated in the whole test to a result output module when the test is finished, the result output module carries out scatter diagram processing on the time T and the sedimentation height H, the sedimentation time T is taken as an X-axis abscissa, the sedimentation height H is taken as a Y-axis ordinate, and the control computer outputs a data table and draws a produced sedimentation curve as a final test result. The results of this example are shown in FIG. 4 and Table 2.
Table 2 sedimentation results for four groups of coagulation/flocculant in example 2 experiment
According to the first embodiment and the second embodiment, experimental data can be obtained without manual participation, and interference of human factors is avoided.
The application is through setting up camera 1, transparent subsider 2 of multiunit, cross valve 3, medicament frequency conversion high flux measuring pump 4, medicament stirring case 5, ground paste preparation groove 6, ground paste frequency conversion high flux dosing pump 7 and control computer 8, cooperate the use, can standardize and unmanned interference factor subsides the experiment, it is more accurate to coagulate the experiment of flocculation experiment system like this, when having solved coagulate the flocculation experiment system in the use, because of can not standardize and unmanned interference factor subsides the experiment, the very easy problem that subsides experiment personal error is big appears, the experimental result is different from person to person. According to the invention, the control system automatically completes the data post-processing of the experimental process, obtains the feedback of the experimental result, and performs data recording and the storage and output of the experimental result. According to the invention, a plurality of groups of transparent settling tanks 2 are arranged, and a plurality of groups of high-flux coagulation flocculation experiments can be completed through one experiment by corresponding the medicament variable-frequency high-flux metering pump 4 and the slurry variable-frequency high-flux quantitative feeding pump 7 to the plurality of groups of transparent settling tanks 2.
Claims (7)
1. The experimental method of the high-flux coagulation flocculation experimental system adopts a high-flux coagulation flocculation experimental system, and comprises a camera, a plurality of groups of transparent settling tanks, a medicament stirring box, a slurry preparation tank, a slurry variable-frequency high-flux quantitative feeding pump and a control computer, wherein the plurality of groups of transparent settling tanks are sequentially arranged at the front end of the camera in a row, and scale marks are printed on the transparent settling tank farthest from the camera; a parallel light source emitter is arranged at one side of the plurality of groups of transparent settling tanks, which is far away from the camera; four-way valves are arranged at the filling ends of the plurality of groups of transparent settling tanks, and one end of each four-way valve is connected with the medicament stirring box through a medicament variable-frequency high-flux metering pump; the slurry variable-frequency high-flux quantitative feeding pump is arranged between the slurry preparation tank and the four-way valve; one end of the four-way valve is externally connected with a water source; the camera, the medicament stirring box, the parallel light source emitter, the medicament frequency conversion high-flux metering pump, the slurry preparation tank and the slurry frequency conversion high-flux quantitative feeding pump are electrically connected with the control computer through signal wires;
the method is characterized by comprising the following steps of:
step one: configuring a sample to be tested according to experimental requirements;
step two: preparing a to-be-added coagulation/flocculant, wherein the to-be-added coagulation/flocculant is a plurality of different to-be-added coagulation/flocculant or one to-be-added coagulation/flocculant is uniformly divided into a plurality of groups;
step three: placing the sample to be tested configured in the step one into a slurry preparation tank; respectively placing the coagulation/flocculant to be added prepared in the second step in the inner cavity of the medicament stirring box;
step four: the method comprises the steps that a control computer respectively sends opening instructions to a slurry variable-frequency high-flux dosing pump, a medicament variable-frequency high-flux dosing pump and a four-way valve, the slurry variable-frequency high-flux dosing pump, the medicament variable-frequency high-flux dosing pump and the four-way valve are opened, a coagulation/flocculant respectively enters corresponding transparent settling tanks through the medicament variable-frequency high-flux dosing pump, and samples to be tested enter a plurality of groups of transparent settling tanks through the slurry variable-frequency high-flux dosing pump;
when the coagulation/flocculant to be added configured in the second step is a plurality of different coagulation/flocculant to be added, the control computer controls the variable-frequency high-flux metering pump of the medicament to be added in the same adding proportion when four coagulation/flocculant are added in the second step; when the sample to be tested and four coagulation/flocculation agents are added, a control computer controls stirring parts of a slurry preparation tank and a medicament stirring box to continuously run;
when the coagulation/flocculant to be added configured in the second step is divided into a plurality of groups, the control computer controls the variable-frequency high-flux metering pump of the medicament to be added respectively in different adding proportions when four coagulation/flocculants are added in the second step;
step five: when the test sample and the four coagulation/flocculating agents are added, the control computer starts the parallel light source emitter and the camera, the moment is a timing zero point, the camera shoots a piece of picture data every a set time delta T and gives the picture data to the control computer, and the control system in the control computer processes the picture to output a data table and draws a sedimentation curve as a final test result.
2. The method of claim 1, wherein the method comprises the steps of: the transparent settling tanks are four groups, and four inner cavities corresponding to the four groups of the medicament stirring tanks are formed in the medicament stirring tank.
3. The method of claim 1, wherein the method comprises the steps of: the liquid inlet end of the medicament variable-frequency high-flux metering pump extends to the bottom of the inner cavity of the medicament stirring box.
4. The method of claim 1, wherein the method comprises the steps of: the input end of the slurry variable-frequency high-flux quantitative feeding pump extends to the bottom of the inner cavity of the slurry preparation tank.
5. The method of claim 1, wherein the method comprises the steps of: one side of the output end of the medicament variable-frequency high-flux metering pump is connected with the four-way valve through a pipeline.
6. The method of claim 1, wherein the method comprises the steps of: the transparent settling tanks of the plurality of groups respectively correspond to one inner cavity of the medicament stirring box.
7. The method of claim 1, wherein the method comprises the steps of: the control computer is internally provided with a control system, the control system comprises a control module, a data receiving module, an image processing module, a data processing module and a result output module, the control module is used for controlling the starting, the quantification and the closing of the slurry variable-frequency high-flux quantitative feeding pump according to a preset feeding value before a test, and is used for controlling the starting, the metering and the closing of the medicament variable-frequency high-flux metering pump and the starting and the stopping of a power supply of the camera, the medicament stirring box, the slurry preparation tank and the parallel light source emitter; the data receiving module is used for receiving pictures shot in the test process shot by the camera; the image processing module is used for converting the picture information data of the data receiving module into data required by the test, and the principle is that the picture information is subjected to binarization processing to obtain a solid-liquid separation interface value, and the converted data is transmitted to the data processing module; the data processing module is used for carrying out one-to-one correspondence on the recording time T of the camera corresponding to each solid-liquid separation interface value to obtain one-to-one correspondence data of the time T and the sedimentation height H, and forming a data table as a test result table; the result output module is used for drawing a test result data table into a sedimentation curve and outputting the sedimentation curve and the table together as a test result for display.
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| CN115615885B (en) * | 2022-08-31 | 2024-06-18 | 金诚信矿业管理股份有限公司 | Intelligent analysis method and system for flocculation sedimentation of tailings |
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