CN210885452U - Magnetic powder content monitoring device for magnetic flocculation sedimentation tank and intelligent magnetic powder adding system - Google Patents
Magnetic powder content monitoring device for magnetic flocculation sedimentation tank and intelligent magnetic powder adding system Download PDFInfo
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- CN210885452U CN210885452U CN201921949976.8U CN201921949976U CN210885452U CN 210885452 U CN210885452 U CN 210885452U CN 201921949976 U CN201921949976 U CN 201921949976U CN 210885452 U CN210885452 U CN 210885452U
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Abstract
The utility model provides a magnetism is magnetic content monitoring devices and magnetic intelligence addition system for flocculation and precipitation pond belongs to magnetism flocculation water treatment facilities technical field, and this magnetic content monitoring devices can monitor the magnetic content of magnetism flocculation and precipitation pond on line, provides the foundation for adding of magnetic, can enough avoid the magnetic to add untimely, can avoid again that the magnetic adds too much and the magnetic loss that causes. This magnetic flocculation is magnetic particle content monitoring devices for sedimentation tank, including the support frame, it has the magnetic mud metering tank to support on the support frame, the magnetic mud metering tank is equipped with the mass sensor who is used for measuring the interior magnetic mud mixture quality of inflow magnetic mud metering tank with the support department of support frame, the magnetic mud metering tank is equipped with the sample level gauge that is used for measuring the interior magnetic mud mixture liquid level of magnetic mud metering tank, the magnetic mud metering tank is connected with the sampling tube, the sampling valve is installed to the sampling tube to and be used for measuring the sample flowmeter of the interior flow of sampling tube.
Description
Technical Field
The utility model belongs to the technical field of magnetism flocculation water treatment facilities, especially, relate to a magnetism flocculation for sedimentation tank magnetic content monitoring devices and magnetic intelligence dosing system.
Background
The magnetic flocculation precipitation technology is characterized in that in a common coagulation precipitation process, magnetic powder is introduced to participate in a flocculation reaction, so that the magnetic powder and solid suspended matters form magnetic flocs with larger size and density, the magnetic flocs can capture pollutants with more micro particle size, the flocculation effect is greatly enhanced, the flocs are quickly precipitated, the purification effect is excellent, and the magnetic flocculation precipitation technology is an efficient sewage treatment technology and is widely applied.
In magnetism flocculation water treatment system, the magnetic mud mixture of magnetism flocculation sedimentation tank 2 is sent out from the magnetic mud mixture back flow 5 that its bottom set up usually, and then separates in order to retrieve the magnetic through magnetism mud separator 7, and the magnetic of retrieving is reinjected to magnetism flocculation sedimentation tank 2 in, but still can smuggle a small amount of magnetic in the surplus mud of magnetism mud separator 7 discharge, along with the continuous discharge of surplus mud, magnetic content among the magnetism flocculation water treatment system also constantly reduces thereupon. Because the magnetic flocculation sedimentation tank 2 has a high surface load during operation, when the magnetic powder content is lower than a certain limit value, the magnetic flocculation sedimentation tank 2 can run alum, and the effluent quality can exceed the standard limit value, the magnetic powder slurry needs to be continuously supplemented into the magnetic flocculation sedimentation tank 2 to maintain the magnetic powder content within the specified limit value range.
At present, no special online monitoring device exists for the magnetic powder content of the magnetic flocculation sedimentation tank 2. The existing magnetic flocculation water treatment system generally monitors the total phosphorus content (TP) and the suspended solid content (SS) of the effluent of a magnetic flocculation sedimentation tank 2, obtains the inflow through a sewage inflow flowmeter 4 arranged on a sewage inlet pipe 3, determines the addition amount of magnetic powder by experience according to the TP, the SS and the inflow of the effluent, and further determines the preparation concentration of magnetic powder slurry.
Therefore, how to monitor the magnetic powder content of the magnetic flocculation sedimentation tank on line and further realize the intelligent replenishment of the magnetic powder is a technical problem which is urgently needed to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to foretell technical problem, provide a magnetism is magnetic content monitoring devices and magnetic intelligence feeding system for flocculation and precipitation pond, this magnetic content monitoring devices can monitor the magnetic content of magnetism flocculation and precipitation pond on line, provides the foundation for adding of magnetic, can enough avoid the magnetic to add untimely, can avoid the magnetic to add too much and the magnetic loss that causes again.
In order to achieve the above object, the utility model discloses a technical scheme be:
the utility model provides a magnetism is magnetic particle content monitoring devices for flocculation and precipitation pond, the loam carrying platform comprises a supporting fram, it has the magnetic mud metering tank to support on the support frame, the magnetic mud metering tank is equipped with the support department of support frame and is used for measuring the inflow the mass sensor of magnetic mud mixture quality in the magnetic mud metering tank, the magnetic mud metering tank is equipped with and is used for measuring the sample level gauge of magnetic mud mixture liquid level in the magnetic mud metering tank, the magnetic mud metering tank is connected with the sampling tube, the sampling valve is installed to the sampling tube, and is used for measuring the sample flowmeter of flow in the sampling tube.
Preferably, the sampling pipe is connected to the upper part of the side wall of the magnetomud metering tank.
Preferably, the bottom of the magnetic mud metering tank is provided with a discharge valve.
Preferably, the bottom of the magnetic mud metering tank is in an inverted cone shape, and the discharge valve is positioned at the tip of the inverted cone shape.
The utility model also provides an intelligent magnetic powder adding system for the magnetic flocculation sedimentation tank, which comprises a magnetic powder slurry preparation adding mechanism for adding magnetic powder into the magnetic flocculation sedimentation tank, a magnetic powder content monitoring device, a reflux flowmeter for measuring the reflux flow of the magnetic mud mixture in the magnetic flocculation sedimentation tank, and a control mechanism, wherein the magnetic powder slurry preparation adding mechanism is used for adding magnetic powder into the magnetic flocculation sedimentation tank; a sampling pipe of the magnetic powder content monitoring device is connected to a magnetic sludge mixture return pipe at the bottom of the magnetic flocculation sedimentation tank, and the reflux flowmeter is arranged on the magnetic sludge mixture return pipe; the signal input end of the control mechanism is connected with the reflux flowmeter, the sewage inlet flowmeter of the magnetic flocculation sedimentation tank, and a sampling flowmeter, a sampling liquid level meter and a quality sensor of the magnetic powder content monitoring device; and the signal output end of the control mechanism is connected with a sampling valve of the magnetic powder content monitoring device and the magnetic powder slurry preparation and feeding mechanism.
Preferably, the control mechanism comprises a first controller, a second controller and a third controller; the signal input end of the first controller is connected with a sampling flowmeter, a sampling liquid level meter and a quality sensor of the magnetic powder content monitoring device, and the signal output end of the first controller is connected with a sampling valve of the magnetic powder content monitoring device and the signal input end of the second controller; the signal input end of the second controller is also connected with the reflux flowmeter and the sewage inflow flowmeter, and the signal output end of the second controller is connected with the input end of the third controller; and the third controller controls the slurry preparation and adding operation of the magnetic powder slurry preparation and adding mechanism.
Preferably, a signal output end of the third controller is connected with a signal input end of the second controller so as to feed back an operation signal to the second controller.
Preferably, the magnetic powder slurry preparing and adding mechanism comprises a storage tank for storing magnetic powder, a metering conveyor for quantitatively conveying the magnetic powder, a magnetic powder slurry preparing box for preparing the magnetic powder slurry, and a dosing pump for adding the magnetic powder slurry into the magnetic flocculation sedimentation tank; the storage tank, the metering conveyor, the magnetic powder slurry preparation box and the dosing pump are sequentially connected; the magnetic powder slurry preparation box is provided with a liquid preparation level meter for measuring the liquid level of the magnetic powder slurry preparation box, the magnetic powder slurry preparation box is connected with a water supply pipe for supplying water to the magnetic powder slurry preparation box, and the water supply pipe is provided with a water inlet control valve.
Preferably, the signal input end of the third controller is connected with the metering conveyor, the dosing pump and the liquid distribution liquid level meter, and the signal output end of the third controller is connected with the metering conveyor, the dosing pump and the water inlet control valve.
Preferably, the first controller, the second controller and the third controller are all PLC controllers.
Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:
1. the utility model provides a magnetic particle content monitoring devices for magnetic flocculation sedimentation tank carries out online sampling through the magnetic mud metering tank that sets up, cooperates the measurement of mass sensor, sample level gauge and sample flowmeter, can calculate the magnetic particle content who obtains magnetic flocculation sedimentation tank, has realized the online monitoring to magnetic flocculation sedimentation tank magnetic particle content, provides the basis for replenishing of magnetic, can enough avoid the magnetic to replenish untimely, can avoid the magnetic to replenish too much and the magnetic loss that causes again;
2. the utility model provides a magnetism is magnetic intelligence dosing system for flocculation and precipitation pond, control mechanism control magnetic content monitoring devices's sampling operation through setting up, and acquire the flowmeter of sampling among the magnetic content monitoring devices, sample level gauge and quality sensor's measuring result, and the measuring result of backward flow flowmeter and sewage intake flowmeter, further calculate the magnetic content who obtains magnetism flocculation and precipitation pond according to the measuring result that acquires, and then control magnetic thick liquid according to the real-time supervision result of magnetic content and the comparative result of magnetic content setting value and prepare the thick liquid of dosing mechanism and add and prepare and add, the in time of magnetic has been realized, accurate replenishment, can enough guarantee the purification treatment effect of magnetism flocculation and precipitation pond, the magnetic loss that causes because of the magnetic is supplemented too much has been reduced again;
3. the utility model provides a magnetism is magnetic intelligence dosing system for flocculation and sedimentation tank has realized intelligent control through control mechanism, and degree of automation is high, need not personnel on duty, has reduced intensity of labour.
Drawings
Fig. 1 is a schematic structural view of a magnetic powder content monitoring device for a magnetic flocculation sedimentation tank provided by the embodiment of the utility model;
FIG. 2 is a schematic structural view of an intelligent magnetic powder feeding system for a magnetic flocculation sedimentation tank provided by the embodiment of the utility model;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
in the above figures: 1. a magnetic powder content monitoring device; 11. a support frame; 12. a magnetic mud metering tank; 13. a mass sensor; 14. a sampling liquid level meter; 15. a sampling tube; 16. a sampling flowmeter; 17. a sampling valve; 18. a discharge valve; 2. a magnetic flocculation sedimentation tank; 3. a sewage inlet pipe; 4. a sewage inflow flowmeter; 5. a magnetic mud mixture reflux pipe; 6. a reflux flow meter; 7. a magnetic mud separation device; 8. a magnetic powder slurry preparation and feeding mechanism; 81. a material storage tank; 82. a metering conveyor; 83. preparing a magnetic powder slurry box; 831. a liquid preparation level meter; 832. a water supply pipe; 833. a water inlet control valve; 84. a dosing pump; 9. a control mechanism; 91. a first controller; 92. a second controller; 93. and a third controller.
Detailed Description
The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", etc. indicate the positional relationship based on the positional relationship shown in fig. 1, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the embodiment of the utility model relates to a magnetic particle content monitoring devices 1 for magnetic flocculation sedimentation tank, including support frame 11, support frame 11 is last to support there is magnetic mud metering tank 12, magnetic mud metering tank 12 is equipped with the mass sensor 13 that is used for measuring the magnetic mud mixture quality in the inflow magnetic mud metering tank 12 with support frame 11's support department, magnetic mud metering tank 12 is equipped with the sample level gauge 14 that is used for measuring the magnetic mud mixture liquid level in the magnetic mud metering tank 12, magnetic mud metering tank 12 is connected with sampling tube 15, sampling valve 17 is installed to sampling tube 15 to and be used for measuring the sample flowmeter 16 of flow in the sampling tube 15.
Above-mentioned magnetic particle content monitoring devices 1 for magnetic flocculation sedimentation tank, when monitoring, connect sampling tube 15 on the magnetic mud mixture back flow 5 of 2 bottoms in magnetic flocculation sedimentation tank, open the partial magnetic mud mixture that sampling valve 17 can be with in the magnetic mud mixture back flow 5, get to in magnetic mud metering tank 12 through sampling tube 15, measure the liquid level of the magnetic mud mixture in magnetic mud metering tank 12 through sample level gauge 14, after the sample liquid level is set for in the reacing, close sampling valve 17, the liquid level that measures through sample level gauge 14 can convert and obtain the volume V of the magnetic mud mixture in magnetic mud metering tank 12SamplingThe mass M of the magnetic mud mixture in the magnetic mud metering tank 12 can be measured and obtained through the mass sensor 13SamplingThe sampling flow rate Q is obtained by the sampling flowmeter 16SamplingAnd further combine with the sewage inflow rate QInflow waterReflux flow Q of magnetic mud mixtureRefluxingThe magnetic powder content of the magnetic flocculation sedimentation tank 2 can be roughly calculated, and the calculation process is as follows:
since the magnetic sludge mixture returned by the magnetic flocculation sedimentation tank 2 has a relatively high magnetic powder ratio and a relatively small sludge ratio, and the sludge is mostly water and has relatively few sludge particles, the density of the sludge can be approximately equal to that of water. The mass M of the magnetic powder in the partial magnetic mud mixture taken from the magnetic mud metering tank 12 can be obtained through the formula (1)Sampling magnetic powderFurthermore, the total mass M of the magnetic powder flowing through the magnetic mud mixture reflux pipe 5 in the sampling process can be calculated and obtained by using the formula (2)Total magnetic powderThe sampling time t can be calculated by using a formula (3), and finally the magnetic powder content MP can be calculated by using a formula (4).
MSampling magnetic powder＝MSampling-VSamplingρWater (W)(1)
Above-mentioned magnetic particle content monitoring devices 1 for magnetic flocculation sedimentation tank, carry out online sample through the magnetic mud metering tank 12 that sets up, cooperation quality sensor 13, sample level gauge 14 and sample flowmeter 16's measurement, can calculate the magnetic particle content who obtains magnetic flocculation sedimentation tank 2, realized the online monitoring to 2 magnetic particle content in magnetic flocculation sedimentation tank, provide the basis for adding of magnetic, can enough avoid the magnetic to add untimely, can avoid the magnetic to add too much and the magnetic loss that causes again.
In order to ensure the sampling amount of the magnetic mud measuring tank 12, as shown in fig. 1, a sampling pipe 15 is connected to the upper portion of the side wall of the magnetic mud measuring tank 12 to ensure that the magnetic mud mixture taken into the magnetic mud measuring tank 12 can reach a high liquid level, thereby ensuring the accuracy of the monitoring result.
To facilitate emptying of the mag-mud metering tank 12 for the next round of monitoring, as shown in fig. 1, the bottom of the mag-mud metering tank 12 is provided with a discharge valve 18 to discharge the sampled mag-mud mixture from the mag-mud metering tank 12. Preferably, as shown in fig. 1, the bottom of the mag-mud metering tank 12 is in an inverted cone shape, and the discharge valve 18 is located at the tip of the inverted cone shape, so that the mag-mud metering tank 12 can be ensured to be emptied.
In addition, it should be mentioned that the mass sensor 13 is disposed at the supporting position of the magnetic mud measuring tank 12 and the supporting frame 11, and converts the pressure change signal of the magnetic mud measuring tank 12 to the mass sensor 13 into a mass change signal, thereby realizing the measurement of the mass of the magnetic mud mixture in the magnetic mud measuring tank 12.
As shown in fig. 2-4, the embodiment of the utility model also provides an intelligent magnetic powder adding system for magnetic flocculation sedimentation tank, including a magnetic powder slurry preparation adding mechanism 8 for adding magnetic powder to the magnetic flocculation sedimentation tank 2, the above-mentioned magnetic powder content monitoring device 1, a reflux flowmeter 6 for measuring the reflux flow of the magnetic mud mixture in the magnetic flocculation sedimentation tank 2, and a control mechanism 9; a sampling pipe 15 of the magnetic powder content monitoring device 1 is connected to a magnetic sludge mixture return pipe 5 at the bottom of the magnetic flocculation sedimentation tank 2, and a return flow meter 6 is arranged on the magnetic sludge mixture return pipe 5; the signal output end of the control mechanism 9 is connected with a sampling valve 17 of the magnetic powder content monitoring device 1 to control sampling operation; the signal input end of the control mechanism 9 is connected with the reflux flowmeter 6, the sewage inflow flowmeter 4 of the magnetic flocculation sedimentation tank 2, the sampling flowmeter 16, the sampling liquid level meter 14 and the quality sensor 13 of the magnetic powder content monitoring device 1 so as to obtain a measurement result, and a real-time monitoring result of the magnetic powder content is obtained through calculation according to the measurement result; the signal output end of the control mechanism 9 is also connected with the magnetic powder slurry preparation and adding mechanism 8 so as to control the slurry preparation and adding of the magnetic powder slurry preparation and adding mechanism 8 according to the comparison result of the real-time monitoring result of the magnetic powder content and the set value of the magnetic powder content.
The magnetic powder intelligent feeding system for the magnetic flocculation sedimentation tank comprises a control mechanism 9, a sampling operation of a magnetic powder content monitoring device 1 is controlled through the control mechanism, a sampling flowmeter 16 in the magnetic powder content monitoring device 1, measurement results of a sampling liquid level meter 14 and a quality sensor 13 are obtained, measurement results of a backflow flowmeter 6 and a sewage inflow flowmeter 4 are obtained, the magnetic powder content of the magnetic flocculation sedimentation tank 2 is obtained through further operation according to the obtained measurement results, then slurry preparation and feeding of a magnetic powder slurry preparation feeding mechanism 8 are controlled according to a comparison result of a real-time monitoring result of the magnetic powder content and a magnetic powder content set value, the magnetic powder is timely and accurately replenished, the purifying treatment effect of the magnetic flocculation sedimentation tank 2 can be guaranteed, and the magnetic powder loss caused by excessive magnetic powder replenishment is reduced. Moreover, the intelligent magnetic powder feeding system for the magnetic flocculation sedimentation tank realizes intelligent control through the control mechanism 9, has high automation degree, does not need to be attended by personnel, and reduces the labor intensity.
With respect to the specific structure of the control mechanism 9, as shown in fig. 2 to 4, the control mechanism 9 includes a first controller 91, a second controller 92, and a third controller 93; the signal input end of the first controller 91 is connected with the sampling flowmeter 16, the sampling liquid level meter 14 and the mass sensor 13 of the magnetic powder content monitoring device 1 so as to obtain the real-time measurement results of the sampling flowmeter 16, the sampling liquid level meter 14 and the mass sensor 13; the signal output end of the first controller 91 is connected with the sampling valve 17 of the magnetic powder content monitoring device 1 so as to open the sampling valve 17 according to the sampling time set by the first controller 91 and control the closing of the sampling valve 17 according to the liquid level signal measured by the sampling liquid level meter 14; the signal output end of the first controller 91 is further connected with the signal input end of the second controller 92, so as to send the real-time measurement results of the sampling flowmeter 16, the sampling liquid level meter 14 and the quality sensor 13, which are obtained by the first controller 91, to the second controller 92; the signal input end of the second controller 92 is also connected with the reflux flowmeter 6 and the sewage inflow flowmeter 4 to obtain the real-time measurement results of the reflux flowmeter 6 and the sewage inflow flowmeter 4, and the real-time measurement results of the magnetic powder content are obtained through program operation by combining the real-time measurement results of the sampling flowmeter 16, the sampling liquid level meter 14 and the quality sensor 13 of the magnetic powder content monitoring device 1, which are transmitted by the first controller 91; the signal output end of the second controller 92 is connected with the input end of the third controller 93, so as to issue an operation instruction to the third controller 93 according to the comparison result of the real-time monitoring result of the magnetic powder content and the set value of the magnetic powder content; the third controller 93 controls the slurry preparation and adding operation of the magnetic powder slurry preparation and adding mechanism 8, and the third controller 93 controls the slurry preparation and adding operation of the magnetic powder slurry preparation and adding mechanism 8 according to the operation instruction of the second controller 92. Further, as shown in fig. 2, a signal output terminal of the third controller 93 is connected to a signal input terminal of the second controller 92 to feed back the operation signal to the second controller 92.
As shown in fig. 4, the magnetic powder slurry preparation and addition mechanism 8 includes a storage tank 81 for storing magnetic powder, a metering conveyor 82 for quantitatively conveying magnetic powder, a magnetic powder slurry preparation tank 83 for preparing magnetic powder slurry, and a dosing pump 84 for adding magnetic powder slurry to the magnetic flocculation sedimentation tank 2; the storage tank 81, the metering conveyor 82, the magnetic powder slurry preparation box 83 and the dosing pump 84 are connected in sequence; the magnetic powder slurry preparation tank 83 is provided with a liquid preparation level meter 831 for measuring the liquid level of the magnetic powder slurry preparation tank 83, the magnetic powder slurry preparation tank 83 is connected with a water supply pipe 832 for supplying water to the magnetic powder slurry preparation tank 83, and the water supply pipe 832 is provided with a water inlet control valve 833. When the magnetic powder slurry preparation device is used, magnetic powder in the storage tank 81 is quantitatively conveyed to the magnetic powder slurry preparation tank 83 through the metering conveyor 82, water is supplied to the magnetic powder slurry preparation tank 83 through the water supply pipe 832, the water supply amount is controlled through the liquid preparation liquid level meter 831 and the water inlet control valve 833 to prepare magnetic powder slurry with specified concentration in the magnetic powder slurry preparation tank 83, and the prepared magnetic powder slurry is added into the magnetic flocculation sedimentation tank 2 through the dosing pump 84 to supplement the magnetic powder in the magnetic flocculation sedimentation tank 2. It should be noted that in the present embodiment, the metering screw conveyor 82 may be a metering screw conveyor, and the structure thereof is well known to those skilled in the art and will not be described herein.
When the magnetic powder slurry preparation and feeding mechanism 8 with the structure is adopted, correspondingly, as shown in fig. 4, the signal input end and the signal output end of the third controller 93 are both connected with the metering conveyor 82 to receive the real-time feeding amount of the magnetic powder, and the metering conveyor 82 is controlled to stop conveying when the real-time feeding amount of the magnetic powder reaches the required feeding amount of the magnetic powder; the signal input end of the third controller 93 is connected with the liquid distribution liquid level meter 831 to obtain the real-time liquid level of the magnetic powder slurry preparation tank 83 measured by the liquid distribution liquid level meter 831; the signal output end of the third controller 93 is connected with the water inlet control valve 833 to control the opening and closing of the water inlet control valve 833 according to the real-time liquid level of the magnetic powder slurry preparation tank 83; the signal input end and the signal output end of the third controller 93 are both connected with the dosing pump 84 to control the dosing operation of the magnetic powder slurry.
It should be further noted that, in the above-mentioned magnetic powder intelligent dosing system for the magnetic flocculation sedimentation tank, the first controller 91, the second controller 92 and the third controller 93 are preferably PLC controllers. The above control processes of the first controller 91, the second controller 92 and the third controller 93 can be realized by the program of the PLC controller, and a person skilled in the art can write a specific control program according to the above control processes and the common general knowledge in the art, which is not described herein again.
The operation process of the magnetic powder intelligent adding system for the magnetic flocculation sedimentation tank is as follows:
the first controller 91 starts the sampling valve 17 of the magnetic powder content monitoring device 1 according to the sampling time set by the first controller 91, so that part of the magnetic sludge mixture in the magnetic sludge mixture return pipe 5 is taken into the magnetic sludge metering tank 12, the sampling liquid level meter 14 measures the liquid level of the magnetic sludge mixture in the magnetic sludge metering tank 12 in real time, and feeds back a measured real-time liquid level signal of the magnetic sludge mixture in the magnetic sludge metering tank 12 to the first controller 91, when the set sampling liquid level is reached, the first controller 91 controls the sampling valve 17 to be closed, and feeds back the measurement results of the sampling flowmeter 16, the sampling liquid level meter 14 and the quality sensor 13 to the second controller 92; the second controller 92 obtains the real-time measurement results of the reflux flowmeter 6 and the sewage inflow flowmeter 4, and obtains the real-time monitoring result of the magnetic powder content through program operation by combining the measurement results of the sampling flowmeter 16, the sampling liquid level meter 14 and the quality sensor 13 of the magnetic powder content monitoring device 1 fed back by the first controller 91; the second controller 92 compares the real-time monitoring result of the magnetic powder content with the set value of the magnetic powder content, and when the real-time monitoring result of the magnetic powder content is smaller than the set value of the magnetic powder content, the second controller 92 calculates the required preparation concentration and the addition amount of the magnetic powder slurry according to the comparison result and sends the concentration and the addition amount to the third controller 93; the third controller 93 calculates the magnetic powder adding amount and the water amount required for preparing the magnetic powder slurry according to the required preparation concentration of the magnetic powder slurry issued by the second controller 92, the third controller 93 controls the metering conveyor 82 to convey the magnetic powder until the required adding amount of the magnetic powder is reached, and meanwhile, the third controller 93 controls the water inlet control valve 833 to be opened to supply water through the water supply pipe 832 until the required water amount is reached; the third controller 93 feeds the magnetic powder slurry to the magnetic flocculation sedimentation tank 2 according to the feeding amount of the magnetic powder slurry sent by the second controller 92; finally, the third controller 93 feeds back its operation signal to the second controller 92.
Claims (10)
1. Magnetic flocculation is magnetic particle content monitoring devices for sedimentation tank, its characterized in that: the utility model discloses a magnetic mud measuring tank, including the support frame, it has the magnetic mud metering tank to support on the support frame, the magnetic mud metering tank is equipped with the support department of support frame and is used for measuring the inflow the mass sensor of magnetic mud mixture quality in the magnetic mud metering tank, the magnetic mud metering tank is equipped with and is used for measuring the sample level gauge of magnetic mud mixture liquid level in the magnetic mud metering tank, the magnetic mud metering tank is connected with the sampling tube, the sampling valve is installed to the sampling tube, and is used for measuring the sample flowmeter of flow in the sampling tube.
2. The magnetic powder content monitoring device for the magnetic flocculation sedimentation tank of claim 1, wherein: the sampling pipe is connected to the upper part of the side wall of the magnetic mud metering tank.
3. The magnetic powder content monitoring device for the magnetic flocculation sedimentation tank according to claim 1 or 2, wherein: and a discharge valve is arranged at the bottom of the magnetic mud metering tank.
4. The magnetic powder content monitoring device for the magnetic flocculation sedimentation tank of claim 3, wherein: the bottom of magnetomud metering tank is the back taper, the dump valve is located the tip of back taper.
5. Magnetic flocculation is magnetic powder intelligence dosing system for sedimentation tank, its characterized in that: the device comprises a magnetic powder slurry preparation and adding mechanism for adding magnetic powder into a magnetic flocculation sedimentation tank, a magnetic powder content monitoring device according to any one of claims 1 to 4, a reflux flowmeter for measuring reflux flow of a magnetic mud mixture in the magnetic flocculation sedimentation tank, and a control mechanism; a sampling pipe of the magnetic powder content monitoring device is connected to a magnetic sludge mixture return pipe at the bottom of the magnetic flocculation sedimentation tank, and the reflux flowmeter is arranged on the magnetic sludge mixture return pipe; the signal input end of the control mechanism is connected with the reflux flowmeter, the sewage inlet flowmeter of the magnetic flocculation sedimentation tank, and a sampling flowmeter, a sampling liquid level meter and a quality sensor of the magnetic powder content monitoring device; and the signal output end of the control mechanism is connected with a sampling valve of the magnetic powder content monitoring device and the magnetic powder slurry preparation and feeding mechanism.
6. The intelligent magnetic powder adding system for the magnetic flocculation sedimentation tank, according to claim 5, is characterized in that: the control mechanism comprises a first controller, a second controller and a third controller; the signal input end of the first controller is connected with a sampling flowmeter, a sampling liquid level meter and a quality sensor of the magnetic powder content monitoring device, and the signal output end of the first controller is connected with a sampling valve of the magnetic powder content monitoring device and the signal input end of the second controller; the signal input end of the second controller is also connected with the reflux flowmeter and the sewage inflow flowmeter, and the signal output end of the second controller is connected with the input end of the third controller; and the third controller controls the slurry preparation and adding operation of the magnetic powder slurry preparation and adding mechanism.
7. The intelligent magnetic powder adding system for the magnetic flocculation sedimentation tank, according to claim 6, is characterized in that: and the signal output end of the third controller is connected with the signal input end of the second controller so as to feed back an operation signal to the second controller.
8. The intelligent magnetic powder adding system for the magnetic flocculation sedimentation tank as claimed in claim 6 or 7, which is characterized in that: the magnetic powder slurry preparing and adding mechanism comprises a storage tank for storing magnetic powder, a metering conveyor for quantitatively conveying the magnetic powder, a magnetic powder slurry preparing box for preparing the magnetic powder slurry, and a dosing pump for adding the magnetic powder slurry to the magnetic flocculation sedimentation tank; the storage tank, the metering conveyor, the magnetic powder slurry preparation box and the dosing pump are sequentially connected; the magnetic powder slurry preparation box is provided with a liquid preparation level meter for measuring the liquid level of the magnetic powder slurry preparation box, the magnetic powder slurry preparation box is connected with a water supply pipe for supplying water to the magnetic powder slurry preparation box, and the water supply pipe is provided with a water inlet control valve.
9. The intelligent magnetic powder adding system for the magnetic flocculation sedimentation tank according to claim 8, which is characterized in that: and the signal input end of the third controller is connected with the metering conveyor, the dosing pump and the liquid distribution liquid level meter, and the signal output end of the third controller is connected with the metering conveyor, the dosing pump and the water inlet control valve.
10. The intelligent magnetic powder adding system for the magnetic flocculation sedimentation tank, according to claim 6, is characterized in that: the first controller, the second controller and the third controller are all PLC controllers.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811984A (en) * | 2020-08-06 | 2020-10-23 | 上海市机电设计研究院有限公司 | Magnetic powder content measuring device |
| CN113213600A (en) * | 2021-05-25 | 2021-08-06 | 北京精瑞科迈净水技术有限公司 | Automatic magnetic powder feeding device and automatic magnetic powder feeding process for magnetic coagulation |
| CN115246672A (en) * | 2022-07-15 | 2022-10-28 | 中建环能科技股份有限公司 | Magnetic medium particle size determination method and coagulation method for magnetic coagulation water treatment technology |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811984A (en) * | 2020-08-06 | 2020-10-23 | 上海市机电设计研究院有限公司 | Magnetic powder content measuring device |
| CN113213600A (en) * | 2021-05-25 | 2021-08-06 | 北京精瑞科迈净水技术有限公司 | Automatic magnetic powder feeding device and automatic magnetic powder feeding process for magnetic coagulation |
| CN115246672A (en) * | 2022-07-15 | 2022-10-28 | 中建环能科技股份有限公司 | Magnetic medium particle size determination method and coagulation method for magnetic coagulation water treatment technology |
| CN115246672B (en) * | 2022-07-15 | 2024-01-19 | 中建环能科技股份有限公司 | Magnetic medium particle size determination method and coagulation method of magnetic coagulation water treatment technology |
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