KR20060029656A - Hanging type horizontal flocculator - Google Patents

Abstract

The present invention relates to a horizontal flocculator for use in flocculation paper of a water treatment plant.

The purpose of the present invention is that the drive shaft is on the flocculation site and the agglomerator blade is connected to the drive shaft so that there is no component to be fixed and installed in the water so that the installation and repair can be performed without removing the water of the flocculation paper so that the work is easy, quick and flocculation By equalizing the speed of the upper and lower parts of the wing, it causes even agitation throughout the flocculation paper to increase the flocculation effect and to provide the suspension type horizontal flocculator which is economical and displays the G value of the flocculator. It is. For this purpose, the drive shaft is horizontally installed on the structure of the horizontal flocculation paper at a right angle to the flow direction of the flocculation paper at right angles, and the drive shaft is installed so as to rotate two or more wing driving arms together with the drive shaft vertically downward. At the lower end, the agglomerator wing assembly was connected to the hinge structure in a freely rotatable manner, and at the front end of the drive shaft, the driving arm was integrally assembled and the driving arm was connected to the driving device through a constant velocity cam mechanism.

The drive system is composed of a variable speed motor and a speed reducer using an inverter, and the drive device is installed to be fixed on the drive base installed on the structure of the aggregate.

In addition, the drive shaft supports both ends freely with drive shaft support bearings, and the drive shaft support bearings are fixed on the shaft support, the shaft support is fixed on the aggregated structure, and the connection between the drive shaft and the intermediate drive shaft and the end drive shaft is connected to the shaft coupling coupling. Connected.

The wing assembly was framed with a section steel and fixed with long rectangular wing paddles attached vertically by a predetermined spacing and quantity.

The connection center point of the wing assembly is higher than the geometric center of the wing assembly, and the hinge assembly supports at the connection center point and connects with the wing drive arm so that the wing assembly is suspended vertically based on the hinge pin of this connection center point. .

The wing assembly was configured to basically use a two-row structure.

In order to prevent freezing of the winter, the agglomerator vane driving arm was equipped with an electric heater and connected to the control panel with electric wires to supply electricity from the outside.

The control panel was equipped with an inverter speed regulator, a speed gradient (G value) indicator and a speed gradient controller.

Suspension type horizontal flocculator of the present invention is installed without the water of the flocculator because the drive shaft and the fixed portion are all installed outside the water, and only the flocculator flap assembly is hinged to the flocculator wing driving arm in the water of the flocculator. It is easy and quick to repair and consists of only wing drive shaft, wing assembly and agglomerator wing drive arm, so the structure is simple and economical, and the speed of the upper and lower parts of the wing is the same. The effect is to increase.

Description

Hanging type horizontal flocculator

1 is a plan view showing a configuration of the present invention

2 is a front view showing the configuration of the present invention

Figure 3 is a front view of the drive unit of the present invention

Figure 4 is a side view of the drive unit of the present invention

5 is a characteristic diagram of a constant velocity cam of the present invention.

6 is a cross-sectional view showing a state in which the stirring blade plate is moved left and right in the flocculation paper.

Figure 7 is a side view showing a state in which the stirring blade plate moved to the left end

Figure 8 is a side view showing a state in which the stirring blade plate moved to the right end

9 is a side view showing the state of the stirring blade plate for each position when the stirring blade plate moves from the left end to the right end;

10 is a side view showing a state of the stirring blade plate for each position when the stirring blade plate is moved from the right end to the left end;

FIG. 11 is a side view of the hinged drive arm and hinge connected in the middle of the top of two parallel stator blade plates

FIG. 12 is a side view of the agitator blade drive arm hinged at the uppermost middle of the two A-shaped inclined blade blades; FIG.

Figure 13 is a side view showing that the main drive shaft is installed in the direction of flowing water of the flocculation paper and the angle of the stirring blade plate of the flocculator is installed differently for each of the first row, the second row, and the third row.

* Explanation of symbols on important parts of drawing *

1. Main drive shaft 2. Middle drive shaft

3. end drive shaft

4. Drive base 4-a. Pedestal Fixing Screw

5, 5a. Agitator wing plate

6. Cylindrical constant velocity cam 6-a. Guide Home

7. Camshaft Support Bearing Unit 8. Bearing Unit Fixing Screw

9. Shaft joint 10. Drive motorized reducer

11.Drive shaft support bearing 11a.Bearing set screw

12. Shaft Support

13. Shaft connection coupling 14. Drive arm

15. Cam Froa 16. Cam Froa Shaft

17, 18. Stirwing drive arm 19, 19a. Stir vane fixed liver

20, 20a. Between stirring blade shaft 21. Support piece

22. Rotating Support Shaft 23. Heater

24. Heater connection wire 25. Control panel

26. Motor control line 27. First row stirring blade plate

28. Two-row stirring blade plate 29. Three-row stirring blade plate

30. Water temperature signal 31. Coagulant concentration signal

end. Agglomerated slabs b. Front rectifying wall c. Back rectifying wall

la. Agglomerated paper

"a". Position when the stirring vane plate came to the left end

"b" position when the stirring blade plate is at the right end

① Initial position and shape just before the stirring blade plate moves from left to right

② Position and shape when the stirring blade plate progressed slightly to the left

③ Position and shape when the stirring blade plate progresses from the left to the middle

④ Final position and shape when the stirring blade plate reaches to the right end

① 'Initial position and shape just before stirring blade plate moves from right to left

②Position and shape when the 'stirring wing board advanced a little to the left

③ ′ Position and shape when the stator blade progresses from the left middle to the end

④The final position and shape when the stirring blade plate reaches to the left end

The present invention relates to a horizontal flocculator mainly used in waterworks.

Horizontal flocculators in water treatment plants are preferred by many treatment plants because of the stability of flocculation effects, but they also have many problems.

The biggest problem of the horizontal agglomerator is that the drive shaft, the support bearing, and the wing assembly are all fixedly installed in the water.In the event of a failure, the operation of the flocculator and the sedimentation basin in the relevant series of the water purification plant is stopped and the water of the flocculator and the sedimentation basin is drained. Only maintenance and installation are possible.

In addition, the horizontal flocculator has a large number of treatments per unit, so even if only one breakdown occurs, there are many problems in the water treatment immediately. Therefore, it must be repaired quickly. Since it takes ~ 3 days or more, the horizontal flocculator installed in the water was not able to be quickly repaired, which was very difficult for water treatment.

Another problem is that when driving the drive shaft directly, the drive motor should be installed in the underground structure, and the underground structure is always leaking water through the shaft sealing part of the drive shaft. It is an environment where breakdowns and corrosion are promoted and it is difficult for the operator to work.

Another technical problem is that almost all horizontal agglomerators are equipped with three to five agitator blade plates parallel to the two to four wing arms around the axis of rotation, so the outer periphery is fast and the inner part is slow. Since the difference is remarkably large and the coagulation effect is proportional to 1.5 times the circumferential speed of the stirring vane plate, the difference becomes larger, so that there is a problem that the uniform stirring and coagulation is impossible for all parts of the flocculating paper, and the utilization efficiency of the stirring vane plate is that much. There was a problem of deterioration.

In order to solve this problem, there was an improved type (US patent) in which the drive shaft was installed on the structure of the flocculation paper and the agglomerator blade was moved. However, in this case, the upper and lower parts of the upper wing are proportional to the distance from the center of the drive shaft. There was a problem of slow speed, and some of the speeds above and below the wings were equalized (the original invention patent No. 10-0298271-0000 (2002.05.30)), but in this case, in order to equalize the speed of the wings Since the parallel four-section link was used, the kinematic structure was complicated and the manufacturing cost was high, making it difficult to use.

The technical problem to be achieved by the present invention is that the drive shaft and the components with the fixed portion are all installed outside the water can be installed and repaired without draining the water of the flocculation paper, the operation is very easy and fast, the drive shaft and the stirring blade drive arm and stirring blade The structure is simple and economical, and the speed of the upper and lower parts of the stirring wing plate is the same, so that the whole agglomeration paper is uniformly stirred and the G value of the agglomerator is displayed so that the agglomerator is operated under the optimal conditions to increase the agglomeration effect. It is to provide a suspended horizontal flocculator.

The present invention to achieve the above technical problem,

Install the main drive shaft (1) on the flocculation paper slab on the square-shaped flocculation paper (D), and the direction of the main drive shaft (1) is perpendicular to the flow direction of the flocculation paper and with respect to the bottom of the flocculation paper. The main drive shaft 1, the intermediate drive shaft 2, and the end drive shaft 3 are installed at a predetermined height across the center of the coagulation paper so as to be horizontal, and the main drive shaft 1, the intermediate drive shaft 2, and the end drive shaft 3 The shafts are connected to rotate together with the shaft coupling coupling 13, and both ends of the main drive shaft 1, the middle drive shaft 2 and the end drive shaft 3 are respectively supported by the drive shaft support bearings 11 so that rotation is freely supported and the drive shaft The support bearing 11 is firmly fixed to the shaft support 12 installed on the slab of the agglomerated paper with a bearing fixing screw 11a;

The front end of the main drive shaft 1 is integrally fixed to rotate the drive arm 14 having a predetermined length together with the main drive shaft 1, and the cam follower 15 rotates to the cam follower shaft 16. This free insertion insert securely secures the cam follower shaft 16 to the hole formed at the lower end of the drive arm 14, and the cylindrical constant velocity cam 6 integrally forms the shaft on both sides, and both shafts support the cam shaft. Rotation is freely supported by the bearing unit (7), and the camshaft support bearing unit (7) is fixed firmly with the bearing unit fixing screw (8) on the drive base (4) installed on the slab (a) of the aggregate. A guide groove 6a is formed in the cylindrical surface of the constant speed cam 6, and the cam flower 15 is inserted into the guide groove 6a, and the end of one shaft of the cylindrical constant speed cam 6 The output shaft of the drive electric speed reducer 10 is connected to the shaft joint device 9 so as to rotate together. Absent;

The main drive shaft (1), the intermediate drive shaft (2) and the end drive shaft (3) are assembled and installed vertically downward to rotate the stirring blade drive arms (17) and (18) at predetermined positions, respectively, and the stirring blade plate (5) and (5a) are installed parallel to each other at a predetermined interval to face each other, and the stirring blade plate (5), (5a) is fixed to the stirring blade fixing section (19), (19a) with screws and stirred The wing fixing section (19), (19a) is installed to connect the stirring blade shaft section (20), (20a) horizontally in a predetermined position to be the same width as the stirring blade drive arms (17), (18) The support piece 21 which has a hole for a rotation support shaft is integrally formed in the center center between the stirring blade shafts 29 and 20a, and the hole of this support piece 21 and the stirring blade drive arm 17, (( Insert the rotary support shaft 22 into the lower hole of 18) to fix it so that it does not come off, and turn it freely so that the stirring blade plate, the stirring blade fixing part, and the stirring blade An assembly composed of shaft shafts is suspended from the stator blade drive arms 17 and 18, and the position of the rotary support shaft 22 is predetermined to be higher than the geometric center of the stator blade plates 5 and 5a. Heater 23 is attached to the upper surface of the water surface of the stirring blade drive arm (17) and (18), respectively, and the heater (23) is connected to the control panel (25) by the heater connection wire (24) and the control panel The motor control line 26 of (25) is connected to the motor of the drive motor reducer 10, and the control panel 25 inputs the water temperature signal 30 and the coagulant concentration signal 31 to calculate and display the required G value. It provides a suspended horizontal flocculator.

Hereinafter, the configuration and operation of the present invention using the drawings and the like in detail.

In the water treatment plant with aggregated paper, install the main drive shaft (1) on the aggregated paper slab (a) on the square type of aggregated paper (D), and the direction of the main drive shaft is perpendicular to the flow direction of the aggregated paper and the bottom of the aggregated paper. The main drive shaft 1, the intermediate drive shaft 2 and the end drive shaft 3 are installed at a predetermined height across the center of the coagulation paper so as to be horizontal with respect to the main drive shaft 1, the intermediate drive shaft 2 and the end drive shaft ( 3) are connected to rotate together with a flexible shaft connection coupling 13, and both ends of the main drive shaft (1), the intermediate drive shaft (2) and the end drive shaft (3) are drive shaft support bearings (11), respectively. The rotation of the furnace was freely supported, and the drive shaft support bearing 11 was firmly fixed to the shaft support 12 installed on the slab of the agglomerated paper with a bearing fixing screw 11a.

The front end of the main drive shaft 1 is integrally fixed to rotate the drive arm 14 having a predetermined length together with the main drive shaft 1, and the cam follower 15 rotates to the cam follower shaft 16. This free insertion insert securely secures the cam follower shaft 16 to the hole formed at the lower end of the drive arm 14, and the cylindrical constant velocity cam 6 integrally forms the shaft on both sides, and both shafts support the cam shaft. Rotation is freely supported by the bearing unit (7), and the camshaft support bearing unit (7) is fixed firmly with the bearing unit fixing screw (8) on the drive base (4) installed on the slab (a) of the aggregate. A guide groove 6a is formed in the cylindrical surface of the constant speed cam 6, and the cam flower 15 is inserted into the guide groove 6a, and the end of one shaft of the cylindrical constant speed cam 6 The output shaft of the drive electric speed reducer 10 is connected to the shaft joint device 9 so as to rotate together. Was

The main drive shaft (1), the intermediate drive shaft (2) and the end drive shaft (3) are assembled and installed vertically downward to rotate the stirring blade drive arms (17) and (18) at predetermined positions, respectively, and the stirring blade plate (5) and (5a) are installed parallel to each other at a predetermined interval to face each other and the stirring blade plate (5), (5a) is fixed to the stirring blade fixing interval (19), (19a) and the stirring blade Stirring blades (19) and (19a) are installed horizontally connecting the stirring blade shaft between (20) and (20a) at a predetermined position, but the same width as the stirring blade drive arm (17), (18) to 1 The support piece 21 which has a hole for a rotation support shaft is integrally formed in the center center between the stirring blade shafts 29 and 20a, and the hole of this support piece 21 and the stirring blade drive arm 17, (( 18) coincide with the lower hole, and insert the rotary support shaft 22 so as not to fall out and rotate freely, stirring blade plate (5), (5A), stirring blade The assembly composed of the regular intervals 19, 19a, the stirring blade shaft interval 20, and 20a is suspended from the stator blade driving arms 17, 18 in a freely rotatable state, and the rotary support shaft ( The position of 22 is set higher by a predetermined height than the mechanical centers of the stirring vane plates 5 and 5a, and the heater 23 is placed on the water surface of the stirring vane driving arms 17 and 18, respectively. The heater 23 is connected to the control panel 25 by a heater connection wire 24, and the motor control line 26 of the control panel 25 is connected to the motor of the driving electric reducer 10, and the control panel 25 The water temperature signal 30 and the coagulant concentration signal 31 are inputted, and the control panel 25 performs arithmetic processing so as to have a predetermined G value (speed gradient value) by using these signals, and drives it through the motor control line 26. The motor rotation speed of the electric reducer 10 was controlled.

The action of the suspension type horizontal flocculator of the present invention is as follows.

When the agglomerator is operated when the stirring vanes 5 and 5a are at the left end of the agglomeration paper, the driving electric reducer 10 is operated to cause the cylindrical constant velocity cam 6 to rotate at a constant speed. The cam follower 15 inserted in the guide groove 6a which is broken in the surface of 6 moves along the guide groove 6a.

As shown in Fig. 5, the rotational angle and cam speed characteristics of the cylindrical constant velocity cam 6 are slightly lower only at the starting position and the direction change position, and the constant velocity is obtained at most of the remaining sections. The stirring blade plate 5, 5a of the stirring blade assembly suspended from the stirring blade driving arms 17, 18 also moves at the same speed as the other shaft and stirring blade driving arms 17,18 connected to the same. The road will move left and right.

The position of the rotary support shaft 22 assembled in the lower hole of the stirring blade drive arms 17 and 18 is the lower length as shown in Fig. 6 when viewed from above and below the stirring blade plates 5 and 5a. Since it is set longer than the upper length by a predetermined length, the lower weight is heavier so that in the stationary state, the stator blade plates 5 and 5a where the stator blade driving arms 17 and 18 are positioned remain vertical. do.

When the stirring blade drive arms 17 and 18 move from side to side, the stirring blade plates 5 and 5a are subjected to water resistance determined by the moving speed and the area of the stirring blade plate. Since the center of the rotary support shaft 22 is higher than the center of 5a, the stirring vane plates 5a and 5a receive more resistance at the lower side, and thus, more of the stirring support plates 22 and 5a in the traveling direction as shown in FIGS. The lower side of the stir blades 5 and 5a subjected to the resistance is pushed backward.

This condition proceeds as ①, ②, ③, ④ of Figure 9 when the agitator blade plates 5, 5a move to the right at the left end of the flocculation paper, and when moving from the right edge to the left of Figure 10 Proceed as ① ', ②', ③ ', ④'.

The movement of the stirring blade plate shows that the moving distance between the upper and lower ends of the stirring blade plates 5 and 5a is the same when moving from the left to the right or starting from the right to the left. Therefore, the moving speed of the top and bottom of the stirring blades (5), (5a) is also the same, which allows the entire stirring evenly over the top and bottom of the flocculation paper, thereby increasing the cohesion effect.

The angle of inclination θ formed between the stirring blades 5 and 5a with the vertical line is preferably within 20 °, and practically, between the weight of the stirring blade assembly and the resistance of water in the range of L ₂ = (0 to 0.45) × L. It is determined by the ratio and the relationship is as follows.

The weight of the stirring blade assembly composed of the stirring blade plates 5, 5a and the stirring blade fixing section 19, 19a and the stirring blade shaft section 20, 20a is W, and the stirring blade plate 5 When the length of 5) is set to L, the rotational torque Tw due to the difference between the upper and lower weights of the stirring blade assembly centering on the rotating support shaft 22 at the wing assembly is as follows.

Center of gravity of the weight function of the stirring blade assembly is below the stirring blade is L _1/2, the top of the stirring blade is because L _2/2

Tw = Tw ₁ -Tw ₂

_{Tw 1 = L 1/2 ×} L 1 / L × W × sin θ

_{Tw 2 = L 2/2 ×} L 2 / L × W × sin θ

_{Tw = Tw 1 - Tw 2 =} L 1/2 × L 1 / L × W × sin θ - L 2/2 × L 2 / L × W × sin θ = (L 1 2 - L 2 2) × W × sin θ / 2L

Here, Tw: rotational torque due to the difference in length and weight of the lower and upper portions of the stirring blade assembly

Tw ₁ : Rotational Torque by Weight of Lower Stirwing Assembly

TW ₂ : Rotational torque by weight of the upper part of the stirring blade assembly

L: stirring blade plate length, m

L ₁ : Length from the suspension center point to the lower end of the stir blade plate, m

L ₂ : Length from the suspension center point to the upper end of the stir blade plate, m

W: weight of stirring blade assembly, kg

θ: Angle of inclination of agitator blade plate with vertical line, degree (°)

The hydraulic resistance acting on the stirring vane assembly is as follows.

P = μ × V × G ²

Fw = 0.136 P / ν

Where P is the water power required to operate the agglomerator, watt

μ: Viscosity of water, changes with temperature, 0.13 × 10 ^-3 (at 5 ℃)

V: flocculated paper volume, ㎥

G: speed gradient value, normally 10-50

Fw: Resistance of water to stirring blade assembly, kg

ν: movement speed of the stirring blade assembly, usually 0.3 to 0.5m / s

Water resistance is resistance to the center point of water acting on the bottom of the suspension center of the stirring blade assembly so uniformly act on the entire area of the stirring blade assembly is a stirring blade assembly of water-resistant center point is the L _2/2 applied to the top of the L _1/2, resistance force of water acting size is the bottom of the suspension center point Tfw rotational torque generated by the L ₁ / L × Fw, resistant upper part because L ₂ / L × Fw water are as follows.

_{Tfw = Tfw1 - tfw2 = L 1} /2 × L 1 / L × Fw - L 2/2 × L 2 / L × Fw

= (L1 ² -L ₂ ² ) × Fw / 2L

The stirring blade assembly is inclined at an inclination angle θ formed when the weight of the stirring blade assembly is equal to the rotational torque due to the resistance of water.

Thus (L ₁ ² -L ₂ ² ) × W × sin θ / 2L = (L ₁ ² -L ₂ ² ) × Fw / 2L.

Eliminating the same term on both sides W × sin θ = Fw

θ = sin ^-1 (Fw / W).

Also Fw = 0.136 P / ν and P = μ × V × G ²

Fw = 0.136 P / ν = 0.136 × μ × V × G ² / ν

θ = sin ^-1 (Fw / W) = sin ^-1 (0.136 P / ν / W)

= sin ^-1 (0.136 × μ × V × G ² / ν / W)

According to the above equation, the inclination angle θ of the stirring blade assembly is always determined by the ratio of the weight W of the stirring blade assembly to the resistance force Fw of the water acting on the stirring blade assembly regardless of the difference in the length of the stirring blade plate at the upper and lower portions of the suspension center point. It can be seen that Fw is determined by the hydraulic power P and the stirring vane speed ν required for the operation of the flocculator and is determined by the water viscosity coefficient μ, the flocculent volume V and the velocity gradient value G. Since the value is predetermined at the time of design, the inclination angle of the stator blade plate is also determined for each row during the design of the flocculator.

For example, the velocity gradient of one row of agglomerator is 45, the volume of agglomerate paper is 64m3, the stirring blade speed is 0.5m / s, the viscosity coefficient of water is 1.3 × 10 ^-3 , 150 kg

Tilt angle θ = sin ^-1 (0.136 × μ × V × G ² / ν / W) = sin ^-1 (0.136 × 1.3 × 10 ^-3 × 64 × 45 ² /0.5 / 150) = sin ^-1 (0.305) = 17.8 °

In the second column, if G = 30 and ν = 0.35 m / s, the inclination angle θ is

Tilt angle θ = sin ^-1 (0.136 × μ × V × G ² / ν / W) = sin ^-1 (0.136 × 1.3 × 10 ^-3 × 64 × 30 ² /0.35 / 150) = sin ^-1 (0.194) = 11.2 °

In the second column, if G = 20 and ν = 0.25 m / s, the inclination angle θ is

Tilt angle θ = sin ^-1 (0.136 × μ × V × G ² / ν / W) = sin ^-1 (0.136 × 1.3 × 10 ^-3 × 64 × 20 ² /0.25 / 150) = sin ^-1 (0.1206) = 6.9 ° can be seen that the stirring blades of the second and third rows are only slightly inclined, and the 1,2,3 rows are within the practical angle of inclination.

As described above, the length of the stator blade plate above the suspension center point can be in the range of 0 to 0.5L, but in the case of 0.5L, the weight of the upper and lower parts of the stator blade assembly is the same so that the position maintenance becomes unstable. As there is a risk of deviation from a predetermined angle, in practice, the weight of the lower part of the stirring blade assembly is heavier and stabilized so that the stirring wing assembly has a range of 0 to 0.45L so as to stably maintain the vertical or predetermined angle at the time of movement or movement. Suitable.

In addition, the length of the stirring blade above the suspension point of 0 means that the suspension center point is located at the top of the stirring vane assembly, and FIGS. 11 and 12 show an embodiment in which this is applied.

The velocity gradient value (G value) is very important when operating the agglomerator. From the relationship of P = μ × V × G ² as described above,

G = (P / (μ x V)) ^1/2

Here, the passive force P of the agglomerator is the effective power of the inverter power input side divided by the efficiency of the inverter and the mechanical power transmission efficiency of the reducer and cam, the viscosity of water μ is a function of the water temperature t ℃, and V is the volume of the flocculation paper. Is a constant.

The viscosity coefficient μ of water is also a function of the water temperature t ° C.

Therefore, the control panel installs an effective power meter on the inverter power input side, receives the power value of the power meter, the water temperature signal t from the thermometer installed in the water, and the coagulant concentration signal (measured value or external input value) to calculate the G value. Mark on the outside.

The agglomerator driver sees this displayed G value and adjusts the speed of the drive-motor reducer by adjusting the inverter so as to obtain an appropriate G value for each row, and then operates the controller to control the agglomerator speed so as to indicate a predetermined appropriate G value.

There are operation methods based on G value, residence time T and flocculant concentration C as the operating index of the flocculator. The relational expression in this case is as follows.

G ^2.8 × T = 4.4 × 10 ⁶ / C

Where T: dwelling time, min

C: flocculant concentration, mg / L (based on solid aluminum sulfate)

G = {4.4 × 10 ⁶ / (C × T)} ^{1 / 2.8}

In operation considering the coagulant concentration, the speed of the driving motor speed reducer can be controlled to be the G value according to the above formula, or it can be automatically operated by PID operation to be the G value automatically.

As described above, the suspension-type horizontal flocculator of the present invention is installed separately for the main drive shaft 1, the intermediate drive shaft 2, and the end drive shaft 3 for each coagulation paper, and both ends of the drive shaft support bearings 11 are provided. And each shaft is connected by a shaft coupling coupling 13, and the stirring blade driving arms 17 and 18 are integrally formed on each driving shaft and the rotating support shaft 22 is formed at the end thereof. Suspension (hanging) of the stirring vane assembly means that there is no fixed component in the water inside the flocculation basin, so that it can be installed even if there is water in the flocculation basin. If you disassemble only the bearings and shaft couplings on both sides of the drive shaft that correspond to the agglomerated paper where the abnormality occurred without draining the water in the ground, you can lift it immediately using a crane or the like. Suhan then immediately you can reinstall it.

Another embodiment of the present invention is as follows.

In this embodiment, all configurations are the same as the above embodiment, but the main drive shaft 1, the intermediate drive shaft 2 and the end drive shaft 3 are installed in the same direction as the flow direction of the flocculation paper, and the stirring blade drive arm 17 is provided on each drive shaft. , (18) are integrally formed and the stirring blade assembly is suspended with the rotary support shaft 22 at the end thereof, and the first row of stirring paper (frontmost) has the first row of stirring vanes 27 at right angles to the water flowing direction. On the second flocculation paper, the second row stirring blade plate 28 is inclined at 40 to 50 ° in the water flowing direction. On the third flocculation paper third paper, the third row stirring blade plate 29 is 60 to the water flowing direction. Installed at 70 °.

The constitution and action of the flocculator of this embodiment are as follows.

In the flocculation paper, the first gradient coagulation paper has a velocity gradient value (G value) of 40 to 50, the second thermal flocculation paper has a velocity gradient value (G value) of 20 to 30, and the third thermal flocculation paper has a velocity gradient value (G value). The speed gradient value is determined by the speed and area of the agglomerator blade, so the effective area is changed by changing the effective area by changing the installation angle of the agitator blade plate according to the speed gradient value of each row. It was made.

This improves the flocculation effect because it operates at a speed gradient value suitable for each column of the flocculation paper.

Suspension type horizontal flocculator according to the present invention is installed in the drive shaft and the fixed part, all the water can be installed and repaired without draining the water of the flocculation paper is very easy and quick work and drive shaft and stirring blade drive arm and stirring Consists of a wing assembly, the structure is simple and economical, and the speed of the upper and lower parts of the stirring wing plate is the same, so that the whole agglomerate can be uniformly stirred and the operating G value of the agglomerator can be displayed to operate the agglomerator in an optimal state. The effect is to increase.

Claims (3)

Install the main drive shaft (1) on the flocculation paper slab on the square-shaped flocculation paper (D), and the direction of the main drive shaft (1) is perpendicular to the flow direction of the flocculation paper and with respect to the bottom of the flocculation paper. The main drive shaft 1, the intermediate drive shaft 2, and the end drive shaft 3 are installed at a predetermined height across the center of the coagulation paper so as to be horizontal, and the main drive shaft 1, the intermediate drive shaft 2, and the end drive shaft 3 The shafts are connected together to rotate with the shaft coupling coupling 13, and both ends of the main drive shaft 1, the intermediate drive shaft 2 and the end drive shaft 3 are respectively supported by the drive shaft support bearings 11 so as to be freely rotated. The support bearing 11 is firmly fixed to the shaft support 12 provided on the slab of the agglomerated paper with a bearing fixing screw 11a; The front end of the main drive shaft 1 is integrally fixed to rotate the drive arm 14 having a predetermined length together with the main drive shaft 1, and the cam follower 15 rotates to the cam follower shaft 16. This free insertion insert securely secures the cam follower shaft 16 to the hole formed at the lower end of the drive arm 14, and the cylindrical constant velocity cam 6 integrally forms the shaft on both sides, and both shafts support the cam shaft. Rotation is freely supported by the bearing unit (7), and the camshaft support bearing unit (7) is fixed firmly with the bearing unit fixing screw (8) on the drive base (4) installed on the slab (a) of the aggregate. A guide groove 6a is formed in the cylindrical surface of the constant speed cam 6, and the cam flower 15 is inserted into the guide groove 6a, and the end of one shaft of the cylindrical constant speed cam 6 The output shaft of the drive electric speed reducer 10 is connected to the shaft joint device 9 so as to rotate together. Absent; The main drive shaft (1), the intermediate drive shaft (2) and the end drive shaft (3) are assembled and installed vertically downward to rotate the stirring blade drive arms (17) and (18) at predetermined positions, respectively, and the stirring blade plate (5) and (5a) are installed parallel to each other at a predetermined interval to face each other, and the stirring blade plate (5), (5a) is fixed to the stirring blade fixing section (19), (19a) with screws and stirred The blade fixing section 19, 1a is installed by horizontally connecting the stirring blade shaft section 20, 20a at a predetermined position so as to have the same width as the stirring wing driving arms 17, 18. The support piece 21 which has a hole for a rotation support shaft is integrally formed in the center center between the stirring blade shafts 29 and 20a, and the hole of this support piece 21 and the stirring blade drive arm 17, (( Insert the rotary support shaft 22 into the lower hole of 18) to fix it so that it does not come off and to rotate it freely. The assembly constituted between the shafts is suspended from the stirring blade drive arms 17 and 18, and the position (suspension point) of the rotation support shaft 22 is the mechanical center of the stirring blade plates 5 and 5a. The height of the stator blade above the suspension point is set to be 0 to 0.45 times the total length of the stator blade plate, and the heaters 17 and 18 on the surface of the water surface of the stir blade drive arms 17 and 18 are respectively heated. 23) and the heater 23 is connected to the control panel 25 by a heater connection wire 24, and the motor control line 26 of the control panel 25 is connected to the motor of the drive motor reducer 10 and the control panel ( 25) A suspension type horizontal flocculator capable of calculating and displaying a required G value by causing the water temperature signal 30 and the flocculant concentration signal 31 to be input. The stirring blade plate of claim 1, wherein the stirring blade plate is vertically symmetrical with each other when viewed from the side, and the stirring blade plate and the stirring blade shaft are formed to have a rectangular shape, and the stirring blade shaft at the top of the stirring blade plate is Suspended horizontal agglomerator connected to agitator blade drive arm with a rotating support shaft in the center. The method of claim 1 wherein the stirring blade plate is formed in the shape of the A-shape when viewed from the side and the suspension horizontal horizontal flocculation connected to the stirring blade drive arm with a rotary support shaft at the center between the stirring blade shaft at the top of the stirring blade plate group.

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