CN111252871B - Device for removing colloid impurities under action of static field force coupled with multistage partition plates and water power - Google Patents

Abstract

The invention belongs to the technical field of removal of colloidal impurities in raw water and discloses a device for removing the colloidal impurities under the action of static field force coupled with a multi-stage partition plate and water power. The device comprises a settling chamber and an electric field generating device, wherein a multistage flow guide partition plate and a sewage discharge device are arranged in the settling chamber, the multistage flow guide partition plate is an upper partition plate and a lower partition plate which are arranged in a staggered mode, and the settling chamber is divided into a plurality of mutually communicated processing units; a water inlet and a water outlet are respectively arranged on two sides of the top end of the settling chamber; the pollution discharge device is arranged at the bottom end of the treatment unit, the electric field generation device is provided with an anode plate and a cathode plate, the anode plate and the cathode plate are respectively arranged at the bottom end and the top end of the outside of the settling chamber in parallel, and the anode plate and the cathode plate are connected through an external power supply. The device utilizes the characteristic of the negative electricity charge on the surface of the colloidal particles, and skillfully establishes the diversion of the multi-stage partition plate to form more favorable hydraulic conditions, so that the colloidal particles can be in more favorable sedimentation conditions, the sedimentation efficiency of colloidal impurities is improved, the consumption is reduced, and the automatic sludge discharge is realized in the operation process.

Description

A device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action

technical field

The invention belongs to the technical field of colloidal impurity removal in raw water, and more particularly relates to a device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action.

Background technique

The impurities in raw water can be divided into dissolved matter, colloid and suspended matter according to size. Solutes are ions or molecules that are in true solution. The particles of suspended solids are larger. When the water is still, suspended solids with smaller density float on the water surface, while those with higher density sink. Therefore, such impurities are easier to remove. Colloidal particles are mainly inorganic substances such as fine sediment and minerals, and organic substances such as humus, which are aggregates of many molecules and ions. These particles have a large surface area and a strong adsorption force, and many microorganisms such as germs and bacteria adhere to their surface, which are the most important impurities to be removed in raw water treatment, and are also relatively difficult to remove.

Colloidal impurities in water, with small particle size, can undergo Brownian motion. Because of its strong adsorption, its surface often adsorbs ions and is charged. Similar colloids repel each other due to the same charge, so it is difficult to collide and aggregate into larger particles in water for sinking. remove. At the same time, the hydration shell of the colloidal particles forms a protective layer, which also reduces the possibility of colloidal agglomeration, so the colloidal particles have strong dynamic stability and can be dispersed and suspended for a long time. Therefore, colloidal particles cannot be removed by filtration, flotation or gravity sedimentation. Although the colloid will gradually settle after being placed for a long time, the time is very long.

Colloids in water are generally negatively charged. The traditional way to remove colloid impurities in water is to add coagulants (such as polyaluminum chloride) and coagulants (such as polyacrylamide), so that colloids in water form large flocs and are removed by gravity precipitation . One of its main mechanisms is adsorption charge neutralization, that is, the coagulant hydrolyzes positively charged ions in water, neutralizes the negative charge of the colloidal particles, and makes the colloidal particles in an electrically neutral state, thereby eliminating the colloidal particles. At the same time, the collision between the colloids is increased by stirring, so that they flocculate into larger flocs and are precipitated and separated from the water. Other mechanisms of coagulation include adsorption bridging, net capture and sweeping, etc. The coagulation process is affected by many factors, such as the type of coagulant, water temperature (low water temperature is not conducive to floc formation), pH and alkalinity, as well as the nature, composition and concentration of impurities, etc., as well as velocity gradient control in the flocculation stage , These factors and poor link operation control will affect the entire coagulation effect. From the point of view of the coagulant itself, some coagulants are corrosive, and anti-corrosion measures for equipment and devices should be considered; the crude coagulant product contains high water-insoluble impurities, and there are many waste residues, which are troublesome to use. In addition, there are more and more types of pollutants in raw water, and the addition of coagulants can easily lead to secondary pollution. The preparation and dosing method of the coagulant should be equipped with a set of equipment for dissolving, dispensing and dosing. The flocs formed after coagulation need to be further set up in a sedimentation tank for gravity sedimentation removal. The area of the sedimentation tank is quite large, and now the land is tense and expensive. To sum up, the existing traditional methods of treating raw hydrocolloid impurities mainly use the method of drug administration and coagulation to remove the colloid impurities. Although the removal effect can be achieved, the process is tedious and cumbersome, and it is easy to cause secondary pollution and excessive pollution. Mud, increasing the burden on the environment. Therefore, the research and development of a removal device that utilizes electric field coupled with multi-stage separators to accelerate the sedimentation of colloidal particles can not only improve the sedimentation efficiency of colloidal impurities, reduce the consumption of chemicals, but also realize the automatic sludge discharge during the operation process to ensure the continuous operation of the device, and reduce the infrastructure and operation of raw water treatment in my country. cost and improve efficiency have practical significance.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned deficiencies and shortcomings of the prior art, the purpose of the present invention is to provide a device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action. The device utilizes the characteristics of negative charge on the surface of colloidal particles, and cleverly sets up multi-stage baffles for diversion to form more favorable hydraulic conditions, so that colloidal particles can be in more favorable conditions for sedimentation, improve the sedimentation efficiency of colloidal impurities, and reduce drug consumption. The operation process realizes automatic sludge discharge to ensure the continuous operation of the device.

The object of the present invention is achieved through the following technical solutions:

A device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action, the device comprises a settling chamber and an electric field generating device, the settling chamber is provided with a multi-stage flow-guiding separator and a sewage discharge device, the multi-stage guide The flow baffle is divided into an upper baffle and a lower baffle, and the upper baffle and the lower baffle are staggered and arranged to separate the settling chamber into several processing units that communicate with each other; at the top of the settling chamber The two sides are respectively provided with a water inlet and a water outlet; the sewage device is arranged at the bottom end of the treatment unit, the electric field generating device is provided with an anode plate and a cathode plate, and the anode plate is arranged in parallel at the bottom of the sedimentation chamber. At the outer bottom end, the cathode plate is arranged in parallel at the outer top end of the sedimentation chamber, and the anode plate and the cathode plate are connected through an external power source.

Preferably, the distance between the bottom end of the upper partition plate and the inner bottom end of the sedimentation chamber is d ₁ , the distance between the upper partition plate and the lower partition plate is d ₂ , and d ₁ and d ₂ satisfy d ₁ =( 1.4 to 1.7)*d ₂ .

Further, the bottom end of the upper baffle is a triangular structure.

Further, the distance between the top end of the lower partition plate and the inner top end of the settling chamber is d ₃ , and d ₃ is the same as the diameter of the water outlet.

Preferably, the lengths of the upper baffle and the lower baffle are both 3/5 to 3/4 of the height of the sedimentation chamber.

Further, the sewage discharge device includes a mud discharge inclined plate, a mud discharge groove and a mud discharge pipe; the mud discharge inclined plate is arranged at the inner bottom end of the sedimentation chamber, and the lower end of the mud discharge inclined plate is connected to the bottom end of the mud discharge inclined plate. The mud discharge groove is connected, the mud discharge pipe is connected with the mud discharge groove, and a valve is arranged on the mud discharge pipe, which can automatically control the closing and opening of the mud discharge pipe to realize automatic mud discharge.

Further, the slope of the mud discharge inclined plate is 3-5%; the slope of the mud discharge groove is 2-4%.

Further, the sewage discharge device further includes a turbidity sensor, and the turbidity sensor is arranged at the upper end of the inlet of the mud discharge pipe; the turbidity sensor is connected to an automatic sewage discharge control device to automatically control the start and close of the valve. .

Furthermore, the automatic sewage control device includes a single-chip microcomputer, a motor and a power supply, the motor and the turbidity sensor are connected in parallel with the working end of the single-chip microcomputer, and the single-chip microcomputer is connected to the power supply.

A method for realizing the device for removing colloidal impurities by the electrostatic field force coupling multi-stage separator hydraulic action, comprising the following specific steps:

S1. The sewage is first injected into the sedimentation chamber from the water inlet of the sedimentation chamber, and flows down along the multi-stage diversion baffle, and approaches the anode plate at the bottom of the sedimentation chamber with the water flow to separate impurities from the water. After clarification, the water flow continues to follow The multi-level deflector baffles flow upward. In this process, the impurities in the water continue to settle down under the action of the electric field force, which is opposite to the direction of the water flow, and the phase separation occurs. The re-clarified water flows from the upper part of the lower baffle and passes through the sedimentation chamber After the multi-stage series-connected treatment units repeatedly process and remove colloidal impurities, the clarified water flows out from the water outlet of the sedimentation chamber;

S2. At the same time, the sedimented impurity sludge slides to the sludge discharge groove along the sludge discharge inclined plate. When the impurities in the sludge discharge groove are too much, the sewage device automatically controls the opening and closing of the valve on the sludge discharge pipe through the turbidity sensor induction. , and then discharged through the sludge discharge pipe to realize automatic sludge discharge in the process of water treatment.

The present invention utilizes the force of an external electric field to force the colloid to settle to realize separation from water according to the charged characteristics of the raw hydrocolloid impurities, and at the same time, according to the theory of the settling process, multi-stage baffles are skillfully set up to guide the flow to form more favorable hydraulic conditions, so that the colloid particles can be separated from the water. All can be in more favorable conditions for sedimentation, greatly improving the decontamination efficiency and improving the effluent quality. For the high-concentration sediment deposited at the bottom, the intelligent discharge of sedimented impurities is realized by setting up slopes, inclined grooves and an automatic sewage system. The entire settling device can run continuously by itself to achieve the purpose of sewage removal.

Contrary to the traditional method of not actively eliminating the colloid charge, the principle of the present invention to remove the colloid in water is to use the electrification of the colloid particles and add an electrostatic field to couple the multi-stage separator, so that it can accelerate the sedimentation and separate from the water under the action of the electrostatic field force. At the same time, it can also remove part of the solute ion impurities. Since colloids in water generally have negative charges, the field strength direction of the device of the present invention is designed vertically downward, that is, the positive plate with positive charge is below, the negative plate with negative charge is above, and the two metal plates are placed in parallel. When the raw water flows through the electric field, the direction of the electric field force on the colloid in the water is vertically downward, which is consistent with the direction of gravity. Researchers have used the method of external electric field to treat coal slime particles, but the direction of water flow is simply forward in parallel, and the upper water body is always in the upper layer, and the coal slime particles in it may be discharged together with the effluent before it settles and cannot be removed. , while also wasting volume space.

The invention utilizes the charged characteristic of the raw hydrocolloid particles, and applies an electric field to make them subject to a vertical downward electric field force, which is consistent with the direction of gravity, and the vertical downward resultant force increases, so that sedimentation and separation occur faster. A multi-stage separator is set up to guide the water flow, ensuring that all the colloidal particles in the water can flow through the bottom and receive the strongest electric field force, ensuring that they all receive the best removal effect and are removed faster. Under the same volume, the setting of the separator greatly improves the sedimentation effect of colloidal particles and significantly improves the quality of the effluent. An automatic sludge discharge system is set on the sludge discharge pipe to control the closing and start of the valve to realize automatic sludge discharge, so that the device can work continuously.

The distance between the bottom end of the upper partition plate and the bottom of the sedimentation chamber is larger than the distance between the partition plates, that is, the bottom horizontal channel of the water flow is wider than the vertical channel of the water flow. According to v=Q/A (Q is the flow rate, A is the cross-sectional area of the water flow channel, and v is the flow velocity), Q is the same, the larger the A, the smaller the v. The lower the flow velocity at the bottom of the sedimentation chamber, the longer the hydraulic retention time, and the more powerful and sufficient sedimentation of colloidal impurities. The bottom end of the upper baffle is designed as a triangular structure, in order to prevent the short flow of the water flow from bypassing the baffle and flowing upward along the baffle, thus causing the colloidal impurities in it to settle too late. This structure can also prevent the settled colloidal impurities from being deposited. set off again.

The distance between the upper clapboard and the bottom of the sedimentation chamber should be greater than the distance between the clapboards, to ensure that the flow of water at the bottom becomes smaller, which is conducive to the settlement of colloids in the water, and at the same time prevents the flow rate from becoming larger and causing the bottom to settle. Impurities are lifted back into the water body. The cathode plate is at the outer top of the sedimentation chamber, the anode plate is at the outer bottom of the sedimentation chamber, and the positions of the anode plate and the cathode plate cannot be exchanged. Colloids in water are generally negatively charged. At present, the coagulation method to remove colloidal impurities in water also directly defaults to the negative charge of colloids in water. The sludge here is the colloidal impurities that have settled down, so it is also negatively charged. It is necessary to ensure that the vertical value of the electric field force on the negatively charged colloidal impurities in the water is downward, which is consistent with the direction of gravity, so that the colloidal impurities are subjected to the maximum downward force, and the sedimentation and separation from the water are better.

Compared with the prior art, the present invention has the following beneficial effects:

1. According to the charged characteristics of raw hydrocolloid impurities, the present invention utilizes the force of an external electric field to force colloid sedimentation to realize separation from water, and at the same time, according to the theory of sedimentation process, skillfully set up multi-stage baffles for diversion to form more favorable hydraulic conditions, so that The colloidal particles can be in more favorable conditions for sedimentation, which greatly improves the decontamination efficiency and ensures the quality of the effluent. For the high-concentration sediment that settles at the bottom, slopes, chutes and automatic sewage systems are set up to realize the intelligent discharge of precipitated impurities.

2. The present invention adopts the multi-level diversion baffles arranged up and down staggered to change the hydraulic conditions of settlement, which can increase the hydraulic retention time, improve the structural performance of the settlement, improve the settlement efficiency of colloidal impurities in the device, and at the same time significantly improve the sedimentation efficiency. The colloidal impurity removal rate and volume utilization rate can effectively reduce the floor space. The multi-level diversion baffle can make the water flow downward from the bottom, and play the role of diversion, ensuring that all colloidal impurities in the water are closer to the positive plate, the electric field force is stronger, and it can settle more quickly and separate from the water. During the upward movement of the water flow, the water and the colloidal impurities in it move relative to each other, which promotes the separation of the impurities and the water. Such a multi-stage process greatly improves the removal rate of colloidal impurities and ensures the quality of the effluent.

3. The bottom end of the upper clapboard of the present invention has a triangular structure to prevent the water flow from short-circuiting, bypassing the clapboard and directly flowing upward, thereby causing the problem that the colloidal impurities are too late to precipitate.

4. With the continuous settling of colloidal particles, more and more sediments are deposited, which needs to be discharged and removed. The present invention utilizes a turbidity sensor and a single-chip microcomputer to realize the opening and closing of the valve on the mud discharge pipe, which can realize automatic mud discharge. .

5. Compared with the method of removing colloidal suspended impurities in raw water in the traditional coagulation and sedimentation process, the present invention does not need to add too many chemicals, does not cause secondary pollution, does not generate additional sedimentary sludge, and does not increase the burden of sludge treatment. The operation of the device is simple, and there is no need for operation control processes such as coagulation agent dissolution, preparation and dosing, as well as the setting of corresponding pools, and there is no need to set up a larger area of the sedimentation tank for additional sedimentation. Make full use of the charged characteristics of the colloid itself, and cleverly set up the structure and apply an electric field to remove it.

Description of drawings

1 is a schematic structural diagram of a device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action of the present invention;

Fig. 2 is the left sectional view of the device of the present invention;

FIG. 3 is a schematic diagram of the automatic sewage control system in the device of the present invention.

Detailed ways

The content of the present invention is further described below in conjunction with specific embodiments, but should not be construed as a limitation of the present invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art. Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the technical field.

Example 1

FIG. 1 is a schematic structural diagram of a device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action according to the present invention. As shown in Figure 1, the device includes a settling chamber 9 and an electric field generating device 6. The settling chamber 9 is provided with a multi-stage baffle plate 2 and a sewage discharge device. The multi-stage baffle plate 2 is divided into an upper part. The partition plate and the lower partition plate, the upper partition plate and the lower partition plate are staggered, and the settling chamber is separated into several processing units that communicate with each other; The water inlet 1 and the water outlet 3; the sewage device 12 is arranged at the bottom end of the treatment unit, the electric field generating device is provided with an anode plate 5 and a cathode plate 4, and the anode plate 5 is arranged in parallel in the sedimentation chamber 9, the cathode plate 4 is arranged in parallel at the outer top of the sedimentation chamber 9, so that the electric field force of the negatively charged colloidal impurities in the water is vertically downward, consistent with the direction of gravity, and the sedimentation increases downward. The resultant force, the anode plate 5 and the cathode plate 4 are connected through an external power supply.

→↑↓ represents the direction of water flow. The multi-stage separators arranged up and down are staggered, which increases the hydraulic retention time, significantly improves the removal rate of colloidal impurities, and has high volume utilization rate and reduced floor space. Change the hydraulic conditions of sedimentation, improve the structural performance of sedimentation, improve the sedimentation efficiency of colloidal impurities in the device, and improve the volume utilization rate. The diversion baffle makes the water flow downward from the bottom of the sedimentation chamber to ensure that all the colloidal impurities in the water are closer to the positive plate, and the electric field force is stronger, which can settle faster and separate from the water. During the upward movement of the water flow, the water and the colloidal impurities in it move relative to each other, which promotes the separation of the impurities and the water. Such a multi-stage process greatly improves the removal rate of colloidal impurities and ensures the quality of the effluent.

The distance between the bottom end of the upper partition plate and the inner bottom end of the sedimentation chamber 9 is d ₁ , the distance between the upper partition plate and the lower partition plate is d ₂ , and d ₁ and d ₂ satisfy d ₁ =(1.4～ 1.7)*d ₂ . The distance between the upper clapboard and the bottom of the sedimentation chamber should be greater than the distance between the clapboards to ensure that the water flow becomes smaller when the water flow is at the bottom, which is conducive to the settlement of colloids in the water, and at the same time prevents the flow rate from becoming larger and causing the bottom to settle. Impurities are lifted back into the water body.

The bottom end of the upper baffle is a triangular structure to prevent the water flow from short-circuiting, bypassing the baffle and directly flowing upwards, resulting in the problem that the colloidal impurities are too late to precipitate.

The distance between the top end of the lower partition plate and the inner top end of the settling chamber 9 is d ₃ , and d ₃ is the same as the diameter of the water outlet 3 .

The lengths of the upper and lower partitions are both 3/5 to 3/4 of the height of the sedimentation chamber 9 .

Fig. 2 is a left sectional view of the device of the present invention. As shown in Fig. 2, the sewage discharge device includes a mud discharge inclined plate 13, a mud discharge groove 14 and a mud discharge pipe 10; the mud discharge inclined plate 13 is arranged on the The inner bottom end of the sedimentation chamber 9, the lower end of the mud discharge inclined plate 13 is connected to the mud discharge groove 14, the mud discharge pipe 10 is connected to the mud discharge groove 14, and the mud discharge pipe 10 is connected to the mud discharge groove 14. A valve 11 is arranged on the 10, which can automatically control the closing and opening of the sludge discharge pipe to realize automatic sludge discharge.

The slope of the mud discharge inclined plate 13 is 3-5%; the slope of the mud discharge groove 14 is 2-4%.

The sewage discharge device also includes a turbidity sensor 15, which is arranged at the upper end of the inlet of the sludge discharge pipe 10; the turbidity sensor 15 is connected to the automatic sewage discharge control device 12, and automatically controls the valve Start and shut down, realize automatic sludge discharge, so that the device can work continuously.

The automatic sewage control device 12 includes a single-chip microcomputer, a motor and a power supply. The motor and the turbidity sensor 15 are connected in parallel with the working end of the single-chip microcomputer, and the single-chip microcomputer is connected to the power supply.

The working principle is shown in FIG. 3 , the motor and the turbidity sensor are connected in parallel to the next working end of the single-chip microcomputer, the single-chip microcomputer is connected to the power supply, and the turbidity sensor 15 is arranged at the upper end of the inlet of the mud discharge pipe 10; For the high-concentration sediment deposited at the bottom, the sludge discharge inclined plate 13, the sludge discharge groove 14 and the automatic sewage control device 12 are arranged to realize the intelligent discharge of the precipitated impurities.

When working, the water first flows into the sedimentation chamber 9 from the upper water inlet 1. In order to prevent the influent water flow from disturbing and lifting up the impurities deposited at the bottom, the water inlet 1 is arranged on the upper part of the sedimentation chamber 9, and flows down along the multi-stage guide baffle 2. , with the water flow close to the anode plate 5 at the bottom of the sedimentation chamber 9, the negatively charged colloidal impurities are subjected to the electric field force during the bottom flow process, and precipitation occurs at the bottom of the sedimentation chamber 9 to separate the impurities from the water. After clarification, the water flow continues to flow upward along the multi-level guide baffle 2. In this process, the impurities in the water continue to precipitate downward under the action of the electric field force, which is opposite to the direction of the water flow, and the phase separation occurs, and the re-clarified water flows from the lower baffle. The upper part flows through, and then the next stage of repeated treatment is carried out. After the colloidal impurities are removed by the multi-stage series settling chamber treatment unit, the clarified water flows out from the water outlet 3 at the end of the device. The precipitated impurity sludge slides to the sludge discharge groove 14 along the sludge discharge inclined plate 13 , and is then discharged through the sludge discharge pipe 10 . The closing and starting of the valve on the sludge discharge pipe is automatically controlled by the sludge sewage system. With the continuous precipitation of colloidal impurities, the turbidity at the bottom gradually increases. When it increases to a certain value, the valve 11 of the sludge discharge pipe 10 is opened. Slowly descend, when it drops to a certain turbidity, the valve 11 is closed. The whole device integrates the functions of separation and precipitation of colloidal impurities and automatic sludge discharge. It has high efficiency, small footprint and simple installation, which is of great practical significance to raw water treatment.

Example 2

As shown in Figure 1, →↑↓ represents the direction of water flow. During the process of water flow pushing away from left to right, it is repeated three times from one to the other, that is, the interior of the sedimentation chamber 9 can be divided into three identical processing units connected in series, that is The space corresponding to each upper partition has three stages in total for the first-level processing unit, and each level of processing unit is provided with a sewage device. The sewage discharge device also includes a turbidity sensor 15, which is arranged at the upper end of the inlet of the sludge discharge pipe 10; the turbidity sensor 15 is connected to the automatic sewage discharge control device 12, and automatically controls the valve Start and shut down, realize automatic sludge discharge, so that the device can work continuously.

The lower end of the mud discharge inclined plate 13 is connected to the mud discharge groove 14, and the mud discharge pipe 10 is arranged at the low end of the mud discharge inclined plate 13 in each stage of the treatment unit, and is connected with the mud discharge groove. 14 is connected. According to the principle of gravity, the sludge is discharged to a lower place. A valve 11 is arranged on the sludge discharge pipe 10, which can automatically control the closing and opening of the sludge discharge pipe to realize automatic sludge discharge.

If the length of the upper and lower baffles is 3/5 of the height of the sedimentation chamber 9, the slope of the mud discharge inclined plate 13 is 4%, and the mud discharge groove 14 at the lower end of the slope is inclined to the mud discharge pipe 18 (slope 2%). The raw water flows in from the water inlet 1, and as the channel flows vertically downward, the colloidal impurities in the water also approach the anode plate 5, and the flow velocity of the water flow slows down and becomes smaller under the separator, and the colloidal impurities quickly settle at this time. Then it flows upwards. In this process, the water and the colloidal impurities in it move relative to each other, which promotes the separation of impurities and water. In this way, the multi-stage process sedimentation makes the raw water purified, and the treated water is discharged from the discharge port 3 and enters other subsequent processing units. The precipitated impurities slide to the mud discharge groove 14 along the bottom slope, and continue to slide to the mud discharge pipe 10 through the mud discharge groove 14 . When the impurities in the sludge discharge inclined plate 13 are too much precipitated and the turbidity becomes larger, the opening of the gate valve 11 of the sludge discharge pipe is controlled by the induction of the turbidity sensor 15. When the turbidity drops, the gate valve 11 is controlled to close automatically to realize automatic discharge. mud, to ensure the continuous operation of the raw water treatment process.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations and The simplification should be equivalent replacement manners, which are all included in the protection scope of the present invention.

Claims (7)

1. a method for realizing the device of electrostatic field force coupling multistage clapboard hydraulic action to remove colloidal impurities, is characterized in that, comprises following concrete steps: S1. The sewage is first injected into the sedimentation chamber from the water inlet of the sedimentation chamber, and flows down along the multi-stage diversion baffle, and approaches the anode plate at the bottom of the sedimentation chamber with the water flow to separate impurities from the water. After clarification, the water flow continues to follow The multi-level deflector baffles flow upward. In this process, the impurities in the water continue to settle down under the action of the electric field force, which is opposite to the direction of the water flow, and the phase separation occurs. The re-clarified water flows from the upper part of the lower baffle and passes through the sedimentation chamber After the multi-stage series-connected treatment units repeatedly process and remove colloidal impurities, the clarified water flows out from the water outlet of the sedimentation chamber; S2. At the same time, the sedimented impurity sludge slides to the sludge discharge groove along the sludge discharge inclined plate. When the impurities in the sludge discharge groove are too much, the sewage device automatically controls the opening and closing of the valve on the sludge discharge pipe through the turbidity sensor induction. , and then discharged through the sludge discharge pipe to realize automatic sludge discharge in the process of water treatment; The device for removing colloidal impurities by coupling the electrostatic field force to the hydraulic action of the multi-stage separator includes a settling chamber and an electric field generating device. The upper and lower baffles are arranged in a staggered manner, and the settling chamber is spaced into several processing units that communicate with each other; a water inlet and a water outlet; the sewage device is arranged at the bottom end of the treatment unit, the electric field generating device is provided with an anode plate and a cathode plate, and the anode plate is arranged in parallel at the outer bottom end of the sedimentation chamber, The cathode plate is arranged in parallel on the outer top of the sedimentation chamber, and the anode plate and the cathode plate are connected through an external power source; The distance between the bottom end of the upper baffle and the inner bottom end of the sedimentation chamber is d ₁ , the distance between the upper baffle and the lower baffle is d ₂ , and d ₁ and d ₂ satisfy d ₁ =(1.4～1.7 )*d ₂ ; the bottom end of the upper baffle is a triangular structure. 2. The method for realizing the device of electrostatic field force coupling multi-stage clapboard hydraulic action to remove colloidal impurities according to claim 1, wherein the distance between the top of the lower clapboard and the inner top of the settling chamber is d ₃ , d ₃ is the same as the diameter of the water outlet. 3. the method for the device that realizes electrostatic field force coupling multistage clapboard hydraulic action to remove colloidal impurities according to claim 1, is characterized in that, the length of described upper clapboard and lower clapboard is the length of described settling chamber. 3/5 to 3/4 of the height. 4. The method for realizing the device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action according to claim 1, wherein the sewage discharge device comprises a mud discharge inclined plate, a mud discharge groove and a mud discharge pipe The mud discharge inclined plate is arranged at the inner bottom end of the sedimentation chamber, the lower end of the mud discharge inclined plate is connected with the mud discharge groove, and the mud discharge pipe is connected with the mud discharge groove, A valve is arranged on the mud discharge pipe, which can automatically control the closing and opening of the mud discharge pipe to realize automatic mud discharge. 5 . The method for realizing the device for removing colloidal impurities by the hydraulic action of electrostatic field force coupling multi-stage separators according to claim 4 , wherein the slope of the mud discharging inclined plate is 3-5%; The slope of the groove is 2 to 4%. 6. The method for realizing the device for removing colloidal impurities by electrostatic field force coupling multi-stage separator hydraulic action according to claim 4, wherein the sewage discharge device further comprises a turbidity sensor, and the turbidity sensor is arranged in the The upper end of the inlet of the sludge discharge pipe; the turbidity sensor is connected with an automatic sewage discharge control device to automatically control the opening and closing of the valve. 7. The method for realizing the device of electrostatic field force coupling multistage clapboard hydraulic action to remove colloidal impurities according to claim 6, it is characterized in that, described automatic sewage control device comprises single chip microcomputer, motor and power supply, described motor and turbidity The degree sensor is connected in parallel with the working end of the single-chip microcomputer, and the single-chip computer is connected to the power supply.

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