KR20130043461A

KR20130043461A - The coagulantion method and using floc coagulantion device

Info

Publication number: KR20130043461A
Application number: KR1020110107606A
Authority: KR
Inventors: 이순복
Original assignee: 주식회사 지승개발
Priority date: 2011-10-20
Filing date: 2011-10-20
Publication date: 2013-04-30

Abstract

PURPOSE: A coagulation device for floc and a coagulation method using the same are provided to maximize the effectiveness of energy by semi-permanently operating a rotation shaft without an electricity supply, increase effectiveness in a water purification plant operation because noise is not generated by rotating the rotation shaft by a magnetic force, and prevent a water pollution because oil is not necessary in driving. CONSTITUTION: A coagulation device for floc applied in a water purification plant includes a rotation shaft(10); a rotation body(20); a magnetic body(30); a motor cylinder(40); and a control unit(50). The rotation shaft is perpendicularly installed to be rotatable by multiple bearings installed in the upper surface of first ~ third coagulation bath(D1~D3) in a water purification process, and multiple impellers(12) are formed in the lower part in one body. A shaft hole in the rotation shaft penetrates the rotation body, and a permanent magnet(32) rotating the rotation body by magnetic force is inserted into the housing(34) of the magnetic body. The motor cylinder controls a distance from the rotation body by the movement of the magnetic body. A storage battery(52) supplying electricity to the motor cylinder is connected with multiple heat collecting plates(54) collecting solar energy, and the control unit controls the rotation number of the rotation shaft by operating the motor cylinder.

Description

Flocculation device and flocculation method using same {THE COAGULANTION METHOD AND USING FLOC COAGULANTION DEVICE}

The present invention relates to an apparatus for agglomeration of flocs in a flocculation process for water treatment and a flocculation method using the same, and more particularly, a rotation shaft having a predetermined length is vertically installed on the first to third flocculation tanks. A plurality of impellers are installed at the lower part of the upper part, and a plurality of magnets are installed at the upper part in a radial shape, and a magnetic body is installed at a position proximate to the rotating body, and the magnetic body is left / right by an electric cylinder. A flocculation device and flocculation device using the same to move the rotating body, the rotating shaft and the impeller at a constant speed by magnetic force so that the flocs can be easily flocculated from the fresh water contained in the first to third flocculation tanks. It is about a method.

As is well known in order to use rainwater or river water (hereinafter referred to as raw water) to the drinking water must go through a water treatment process, the water treatment process is a water purification process through a flocculation process, a precipitation process and a filtration process is completed.

In the flocculation process, the raw water supplied through the raw water pipe in the intake station is mixed with the chemicals by the chemical injector and the chemical mixer in the chemical chamber and the mixed paper, and then mixed and mixed with the chemicals, so that fine flocs are formed and grown in the flocculant to be precipitated in the sedimentation basin. Is a very important process.

That is, in the water purification plant, chemicals are introduced into the introduced raw water, and the raw water and chemicals are mixed by stirring the raw water treatment, and then the raw water and the chemicals are mixed uniformly. Through the process of settling, the raw water introduced into the water purification plant is purified.

The first to the third agglomeration tank of the conventional flocculation device as described above, respectively, the structure of the motor and the reducer is installed on the top of the agglomeration tank, a plurality of impellers in the lower portion of the rotating shaft driven by the drive of the motor Installed to rotate constantly at each input RPM (RPM) is to flocculate the flocks.

However, these flocculators are driven by the motor continuously from the point of operation of the water purification plant to the point of closure, which increases the cost of electricity due to the high electricity consumption. There was a high possibility of contamination, and the rotational speed of each of the motors installed in the first to the third agglomeration tank continues to rotate with the first input state. However, the change of the rotational speed of the motor according to the conventional flocculation device does not have accurate data value according to the temperature change and rotates at the first rotational speed, which makes the flocculation of the floc easy. This caused a problem that the reliability of the purified water was lowered.

Therefore, in order to solve the above problems, the present invention includes a plurality of impellers installed at the lower portion of the rotating shaft, and a rotating body installed so that a plurality of permanent magnets are embedded at the outer circumference of the rotating shaft, and the rotating body is rotated. It is possible to provide a flocculation device comprising a cylinder provided in front of the permanent magnet, a charging unit and a control unit for supplying power to the cylinder, and at the same time a plurality of flocculation devices are respectively installed on the first to third flocculation tanks. By operating the flocculators respectively, it is possible to set the rotational speed of the rotational shaft when the flocculation of the flocks contained in the raw water flowing into the first to third flocculation tanks is the best, respectively, thereby semi-permanently Can be operated to maximize energy efficiency, and the rotation axis It is possible to increase efficiency in water purification plant operation as it does not generate noise by rotating it, and it is possible to prevent water pollution by not needing oil of motor or reducer during flocculation of flocks, and to make data of the viscosity difference of raw water according to seasonal changes. It is an object of the present invention to provide a flocculation apparatus and a flocculation method using the same to control the rotational speed of the flocculation device to greatly improve the flocculation of the floc to increase the reliability of the purified water.

In order to achieve the above object, the present invention is applied to a water purification plant capable of supplying purified water through a water treatment process for river water or rainwater, and rotated respectively installed in the first to third flocculation tanks during the water treatment process. In a flocculation apparatus for generating and growing a floc by rotating in a number, the flocculator is vertically rotatably installed by a plurality of bearings installed on upper surfaces of the first to third flocculation tanks, and a lower portion of the rotation shaft includes a plurality of impellers integrally formed therein. ; A axial hole penetrating the rotating shaft and a permanent magnet embedded in an outer circumference thereof; A magnetic body in which a permanent magnet for rotating the rotating body by magnetic force is inserted into and installed in the housing; An electric cylinder which adjusts a distance from the rotating body by the movement of the magnetic body; A storage battery for supplying power to the electric cylinder is connected to a plurality of heat collecting plates for collecting solar heat, and includes an inverter for converting electric power charged in the storage battery, and operates the electric cylinder to control the rotation speed of the rotating shaft. And a control unit.

In addition, the present invention is applied to a water purification plant that can supply the purified water through the water treatment process of the river water or rainwater, the flocculation method using a flocculation device to agglomerate floc through the first to third flocculation tank in the water treatment process In the first to third agglomeration tank, respectively, the flocculating device is installed on each of the first step, the drug and raw water is uniformly mixed and introduced into the flocculation paper; The rotational speed of the rotational shaft of the coagulation apparatus installed in the first flocculation tank is 50 to 75 RPM, the rotational speed of the rotational shaft of the coagulation apparatus installed in the second flocculation tank is 25 to 50 RPM, A second step of agglomerating the flocks each with a rotational speed of 15 to 25 RPM of the rotation shaft; The rotation axis of the flocculator is rotated within a range of revolutions for a predetermined time to measure the turbidity of the fresh water contained in the first to third flocculation tanks, and at the same time measure the particle coefficient of the floc to control the data of the flocculator. Inputting a third step; If the turbidity of the raw water or the particle count of the flocks is less than the reference value by analyzing the data input to the control unit of the flocculating apparatus, the rotation axis of the flocculating apparatus is rotated within the respective rotation speed ranges to refill the flocks of the first to third flocculating tanks. A fourth step of agglomeration; A fifth step of measuring turbidity and particle count of fresh water freshly stored in the first to third flocculation tanks and storing the temperature and the rotational speed data of the rotating shaft in the controller if the reference value is satisfied; If a viscosity difference occurs due to a change in the water temperature of the fresh water inside the first to third flocculation tanks using the data stored in the fifth step, the controller controls the rotation axis of the flocculator to the number of rotations based on the stored data. And a sixth step of agglomerating the flocks of the first to third flocculation tanks by rotating.

As described above, the rotary shaft can be operated semi-permanently even without the electric supply of the present invention, thereby maximizing energy efficiency, and rotating the rotary shaft by magnetic force so that no noise is generated, thereby improving efficiency in water purification plant operation. Water can be prevented because oil is not needed during operation, and the rotational speed of the flocculator can be controlled by recording the viscosity difference of raw water according to the seasonal change, which greatly improves the cohesiveness of the floc and improves the reliability of water purification. It is a useful invention that can be increased.

1 is a front view illustrating a flocculation device according to the present invention.
Figure 2 is an exemplary view showing an operating state of the flocculation apparatus according to the present invention.
Figure 3 is an exemplary plan view showing an installation state of the flocculation apparatus according to the present invention.
Figure 4 is a process diagram showing a flocculation method according to the present invention.
Figure 5 is a schematic diagram showing a flocculation method according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown, the flocculation apparatus of the present invention is used in the flocculation process of the water purification process of the water purification plant, and a plurality of flocculation tanks D1 to D3 in order to efficiently flocculate the flocs. Are respectively installed, the configuration is largely composed of a rotating shaft 10, the rotating body 20, the magnetic body 30, the electric cylinder 40 and the control unit 50, the flocculation method using the flocculation device Is largely composed of the first to sixth steps (S10) to (S60).

The rotary shaft 10 has a plurality of impeller 12 is integrally formed in the lower portion of the metal rod provided in a predetermined length, a plurality of bearings installed on the upper surface of the first to third agglomeration tank (D1) ~ (D3) What is necessary is just to install vertically so that rotation is possible by (B).

The rotating body 20 is to be rotated by a predetermined number of revolutions by transmitting a rotational force to the rotating shaft 10, provided in a cylindrical shape having a predetermined height, the shaft hole so that the rotation shaft 10 can be inserted in the center (22) is formed to penetrate through the outer periphery, a plurality of permanent magnets 24 to be embedded and installed in a radial form.

The magnetic body 30 is to rotate the rotating body 20 by a magnetic force, and has a permanent magnet 32 of a predetermined size in the form of a rectangular parallelepiped, and one side of the housing 34 made of a non-ferrous metal material that is not affected by magnetic force. Formed in the form of an open rectangular parallelepiped, the permanent magnet 32 is tightly inserted into the housing 34, but only one side of the permanent magnet 32 is to be exposed.

In this case, a rail groove 36 is formed on the bottom surface of the housing 34 of the magnetic material 30, and rails L having a predetermined length are respectively formed on the top surfaces of the first to third aggregation tanks D1 to D3. It is installed to smooth the left / right flow of the magnetic material 30, the stopper 38 is integrally installed at both ends of the rail (L) so that the magnetic material 30 is not separated from the rail (L) It is preferable to.

The electric cylinder 40 converts the position of the magnetic body 30 to adjust the distance between the permanent magnet 24 of the rotating body 20 and the permanent magnet 32 of the magnetic body 30 by the magnetic force to rotate the shaft By adjusting the rotation speed of the (10), one end of the rod 42 is fixed to the side surface of the magnetic body 30, the rod 42 is stretched and contracted under the control of the control unit 50 to the magnetic body 30 What is necessary is just to install each in the upper part of said 1st-3rd aggregation tank D1-D3 so that it may move to left / right.

The controller 50 controls the operation of the electric cylinder 40 to adjust the rotational speed of the rotating shaft 10, by measuring the turbidity of the raw water and the particle coefficient of the floc by a plurality of sensors (not shown) By inputting and storing an appropriate number of rotations of the rotating shaft 10, the storage battery 52 for storing electric power is connected to a plurality of heat collecting plates 54 for collecting solar heat, and the electric power charged in the storage battery 52 is converted. What is necessary is just to connect and install the inverter 56 to make it integral.

The action of the coagulation apparatus of the present invention having a plurality of configurations as described above is the first to third agglomeration tank (D1) to (D3) the water is uniformly mixed with chemicals and raw water is introduced, the control unit 50 Power is applied to the electric cylinder 40 via the inverter 56 in the storage battery 52 in which solar light is charged by electric power by the plurality of heat collecting plates 54, thereby controlling the electric cylinder 40. When the rod 42 is extended to move the permanent magnet 32 installed in the housing 34 of the magnetic body 30 to approach the rotation shaft 10, the permanent magnet 24 and the magnetic body 30 of the rotating body 20 are moved. Of the permanent magnet 32 by rotating the rotary body 20 by the force to push each other by rotating the impeller 12 by rotating the rotary shaft 10 and the impeller 12 integrally established at the same time at a constant rotational speed By the floc generation and growth will be made smoothly.

The method of efficiently flocculating the floc by using the flocculation apparatus of the present invention as described above, first, in the first step (S10), the first to third flocculation of water uniformly mixed with the raw water, such as rainwater or river water and the chemicals. What is necessary is to flow into tank D1-D3 sequentially.

The second step (S20) is a rotation of the rotation shaft 10 of the flocculation device installed in the first flocculation tank (D1) to 50 ~ 75 RPM to rotate for a predetermined time to flocculate the flocculation tank, the second flocculation tank The rotation speed of the rotation shaft 10 of the coagulation apparatus installed in (D2) is 25 to 50 RPM to rotate for a predetermined time so that the flocs are coagulated, and the rotation shaft 10 of the coagulation apparatus installed in the third coagulation tank (D3) The rotation speed is set to 15 to 25 RPM so that the flocs are aggregated by rotating for a predetermined time.

The third step (S30) is to rotate the rotating shaft 10 of the cohesion apparatus within each rotation speed range for a predetermined time to measure the fresh water in the first to third flocculation tank (D1) ~ (D3) By measuring the turbidity at the same time to measure the particle count of the floc is to input data to the control unit 50 of the flocculator.

The fourth step (S40) is to analyze the data input to the control unit 50 of the flocculation device, when the turbidity of the raw water or the particle count of the flocc is less than the reference value, the rotation axis 10 of the flocculation device in each rotation range What is necessary is just to make it reaggregate the flocks of 1st-3rd aggregation tanks D1-D3 by rotating inside.

At this time, the particle coefficient of the floc does not have a specific value, and the reference value is when the floc particles formed in the first to third flocculation tanks D1 to D3 are the largest and the smallest floc is the smallest. Is preferably.

The fifth step (S50) measures the turbidity and particle count of the fresh water in the first to third coagulation tank (D1) ~ (D3) to enter the reference value, the water temperature and the rotational speed data of the rotary shaft 10 What is necessary is to store in the control part 50.

The sixth step (S60) is a difference in viscosity according to the change in the water temperature of the fresh water in the first to third agglomeration tank (D1) (D3) using the data stored in the fifth step (S50) Is generated, the controller 50 may rotate the rotating shaft 10 of the flocculator at a constant rotational speed to efficiently flocculate the flocks of the first to third flocculation tanks D1 to D3.

Thus, when the flocculation device of the floc according to the present invention is applied in the flocculation process of the water treatment process, it is possible to minimize the occurrence of noise, thereby eliminating the space limitation due to the operation of the equipment, and greatly improving energy efficiency without using electricity. In addition, by applying the flocculation method using the flocculator, the rotation speed of the rotating shaft 10 can be easily adjusted according to the viscosity of the raw water according to the water temperature change by the data stored in the controller 50, thereby improving the flocculation efficiency of the floc. It can be maximized to restore and improve the reliability of the purified water.

On the other hand, the present invention is not limited to the above embodiments, various modifications can be presented in the art without departing from the scope of the claims.

10: axis of rotation 12: impeller
20: rotating body 22: shaft hole
24: permanent magnet 30: magnetic material
32: permanent magnet 34: housing
36: rail groove 38: stopper
40: electric cylinder 42: rod
50 control unit 52 storage battery
54: heat collecting plate 56: inverter
B: bearings D1 to D3: first to third flocculation tanks

Claims

It is applied to the water purification plant that can supply the purified water through the water treatment process of river water or rainwater, and installed in the first to third flocculation tank of the water treatment process, respectively, in the flocculation device to agglomerate the floc by rotating at the input rotation speed In
It is installed vertically rotatable by a plurality of bearings (B) provided on the upper surface of the first to third aggregation tanks (D1) to (D3), the lower portion of the rotary shaft 10 is formed integrally with a plurality of impeller 12 )and;
A shaft hole 22 penetrates the rotary shaft 10 and a rotor 20 having a permanent magnet 24 embedded in an outer circumference thereof;
A magnetic body 30 into which the permanent magnet 32 which rotates the rotating body 20 magnetically by the rotating body 20 is inserted into and installed in the housing 34;
An electric cylinder 40 for adjusting a distance from the rotating body 20 by the movement of the magnetic body 30;
The storage battery 52 for supplying power to the electric cylinder 40 is connected to a plurality of heat collecting plate 54 for collecting solar heat, and includes an inverter 56 for converting the power charged in the storage battery 52 And a control unit (50) for operating the electric cylinder (40) to control the rotation speed of the rotating shaft (10).

The method of claim 1, wherein a rail groove 36 is formed in the bottom surface of the housing 34 of the magnetic material 30, and each of the rails of a predetermined length is formed on the upper surfaces of the first to third aggregation tanks D1 to D3. (L) is installed to facilitate the left / right flow of the magnetic body 30, the stopper 38 is integrally installed at both ends of the rail (L), respectively, the magnetic body 30 is the rail (L) Flocculation apparatus characterized in that the departure from the floc.

According to claim 1, wherein the shaft hole 22 is formed in the center so as to be built in the rotating shaft 10, the outer periphery of the plurality of permanent magnets 24 is embedded in the radial shape of the rotating body 20 Flocculation apparatus of the floc.

The permanent magnet 32 of claim 1, wherein the permanent magnets 32 are installed to correspond to both sides of the rotary body 20 so as to exert a magnetic force on the permanent magnets 24 so as to rotate the rotor 20. Flocculation device of the flocc characterized in that the magnetic material is inserted into the housing 34 so that only one surface is exposed.

2. The flocculation apparatus according to claim 1, wherein the magnetic cylinder (30) is moved left / right to adjust the distance from the rotating body (20).

In the coagulation method using a flocculation device that is applied to the water purification plant that can supply the purified water through the river water or rainwater purification process, the first to third flocculation tank in the water treatment process,
A first step (S10) in which a flocculating device is installed on each of the first to third agglomeration tanks D1 to D3, respectively, and raw water mixed with the chemicals flows in uniformly;
The rotation speed of the rotation shaft 10 of the flocculation apparatus installed in the first flocculation tank D1 is 50 to 75 RPM, and the rotation speed of the rotation shaft 10 of the flocculation apparatus installed in the second flocculation tank D2 is 25 A second step (S20) of agglomeration of the flocks each at a rotational speed of the rotation shaft 10 of the agglomeration apparatus installed at the third agglomeration tank (D3) at 15 to 50 RPM, respectively;
Rotating the rotating shaft 10 of the flocculation device within the respective rotation speed range for a predetermined time to measure the turbidity of the fresh water in the first to third flocculation tank (D1) to (D3) at the same time, the particle count of the floc A third step (S30) of measuring data and inputting data to the controller 50 of the coagulation apparatus;
If the turbidity of the raw water or the particle coefficient of the floc is less than the reference value by analyzing the data input to the control unit 50 of the flocculating apparatus, the rotation shaft 10 of the flocculating apparatus is rotated within each rotational speed range, and then the first to the second A fourth step S40 of reaggregating the flocks of the three flocculation tanks D1 to D3;
By measuring the turbidity and particle count of the fresh water contained in the first to third agglomeration tank (D1) to (D3) and storing the water temperature and the rotational speed data of the rotary shaft 10 in the control unit 50 at a reference value A fifth step (S50) to be performed;
The controller 50 when the viscosity difference according to the change in the water temperature of the fresh water in the first to third agglomeration tank (D1) to (D3) using the data stored in the fifth step (S50) occurs. And a sixth step (S60) of agglomerating the flocks of the first to third flocculation tanks (D1) to (D3) by rotating the rotation shaft 10 of the flocculator at a rotation speed based on the stored data. Agglomeration method using a flocculation device characterized in that.