KR101446107B1 - Sludge treatment device - Google Patents

Abstract

The present invention relates to a sludge thickening apparatus capable of optimizing a sludge treatment through a more efficient and continuous operation by constituting a single apparatus with a thickener for stirring, coagulating and concentrating sludge and a dehydrator for concentrating and dehydrating, A plurality of first fixed plates and a first flow plate having a circular ring structure, and first spacers for generating a gap therebetween, the concentrator tank being constructed to be separated from the sludge and the filtrate, A concentrator comprising a separator for alternately stacking the sludge and filtering the sludge, and an agitator for stirring the wastewater introduced into the concentrator tank, the agitator being disposed outside the separator; A first sludge treatment section having a ring structure as a whole and second flow plates for forced flow by a first flow plate drive means between the second stationary plates, a second sludge treatment section arranged in series on the rear end side of the first sludge, A second sludge treatment section having a ring-like structure as a whole, a connecting section connecting between the first sludge disposal section and the second sludge disposal section, and a second sludge disposal section connected between the first sludge disposal section and the second sludge disposal section, And a dehydrator including a sludge treatment unit and a transfer screw installed in an upper space portion of the second sludge treatment unit.

Description

[0001] Sludge treatment device [0002]

The present invention relates to a sludge thickening apparatus, and more particularly, to a sludge thickening apparatus capable of continuously performing agitation, agglomeration, concentration, and dehydration of a sludge by connecting a thickener and a dehydrator.

Generally, the sludge thickener is installed in the previous stage of the dehydrator to increase the content of total solids in the sludge.

As a representative example of such a sludge thickener, Korea Unexamined Patent Publication No. 2003-0000985 (Jun. 26, 2003) discloses a sludge concentrator comprising a separator provided at one side thereof with a discharge portion and a plurality of A separating means composed of a plurality of flow plates arranged with a small gap between the stationary plate and the fixed plate at the interval between the fixed plates, a screw provided in the space formed in the separating means, and a flow plate driving means Wherein the separating means forms an opening over the entire length of the separating means by forming an opening above the stationary plate and the flow plate, the flow plate drive means comprising a cam fixed to the screw shaft, And a driving plate supported on both sides of the lower portion of the driving plate, And the connecting plate is supported by the supporting piece so that the moving plate is rocked along the contour of the cam.

However, in the prior art U-shaped flow plate, the connecting bar, which is the flow plate driving means, is constructed as a single barrel and torsion and deflection are likely to occur, so that the flow plates can not flow all over the entire section, There is a problem in that not only the effect can be achieved but also the connection bar is subjected to a load acting in the same direction during operation and the deformation is weighted to cause breakage.

In addition, in order to determine which part of the sludge concentrator has a failure, it is necessary to disassemble the entire sludge concentrator and take a long time to repair it.

Korean Public Release No. 2003-0000985 (published on June 26, 2003)

In order to solve the above problems, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a sludge agitator for agitating, agglomerating and concentrating a sludge and a single device for concentrating and dehydrating a sludge to optimize sludge treatment The present invention has been made in view of the above problems, and it is an object of the present invention to provide a sludge concentration apparatus.

In addition, since the fixing shaft and the eccentric shaft are coupled to each other inside the separating tank in which the fixing plate and the flow plate are stacked, the arrangement of the stirrer can be easily designed, the compact concentrator can be constructed, the clogging of the sludge can be minimized And an object of the present invention is to provide a sludge concentration apparatus capable of improving the concentration efficiency per unit time.

Another object of the present invention is to provide a sludge thickening device which can easily separate and discharge cohesive flocs and filtrate by constituting slopes of blades of a stirrer so as to allow flushing and the like to flow upward.

Also, the present invention provides a sludge thickening apparatus capable of improving flocculation efficiency by improving the concentration performance by firstly stirring wastewater and a medicament with a lower agitator, and then generating a floc while stirring with a second agitator using an upper agitator There is a purpose.

In addition, the present invention provides a sludge thickening device capable of improving the assembling property by a simple structure and securing a stable support structure of the separation tank by having a support bracket provided with a boss so that the separation tank can be easily mounted and assembled in the concentrator tank The purpose is to provide.

Particularly, in the present invention, by connecting the flow plate with a bushing and inserting an eccentric shaft therein, the swing motion of the flow plate is made possible, thereby reducing the abrasion of the eccentric shaft and reducing the power loss, And a sludge concentration apparatus for sludge concentration.

It is another object of the present invention to provide a sludge thickening apparatus capable of preventing deformation of the driving means and failure due to the adoption of the separable structure in the dehydrator and significantly increasing the concentration and dewatering effect .

It is another object of the present invention to provide a sludge thickening device that can be partly inspected and repaired in a dehydrator, thereby significantly reducing the maintenance cost and thereby improving the economical efficiency.

Another object of the present invention is to provide a sludge thickening apparatus having improved durability and long life by dispersing a load applied to a driving means of a dehydrator.

Another object of the present invention is to provide a sludge concentration apparatus that can accurately grasp a fault occurrence position when a fault occurs, in a structure of a separate type dehydrator.

As means for solving the above problems, the sludge thickening apparatus of the present invention comprises:

A plurality of first fixed plates and a first flow plate having a circular ring structure, and a plurality of first fixed plates and a plurality of first flow plates arranged in a vertical direction and capable of separating and discharging the sludge and the filtrate, A separator for separating sludge by alternately stacking the spacers, and an agitator for stirring the wastewater introduced into the concentrator tank and disposed outside the separator,

The first fixing plate and the first flow plate constituting the separation tank are assembled together by a fixed shaft and an eccentric shaft,

And an axial coupling portion to which the first flow plate and the eccentric shaft are coupled is protruded inward from the inner peripheral surface of the separating tank so that the fixed shaft and the eccentric shaft are engaged with each other Lt; / RTI >

Wherein the separating tank is provided with a lower plate and an upper plate respectively disposed on the lower and upper portions of the first fixing plate and the first flow plate,

Wherein a support bracket for supporting the lower plate is provided on the inner side of the concentrator tank, the support brackets being fixed to each other in a direction orthogonal to the vertical plate and the horizontal plate, a support plate having a triangular structure is provided between the two members, A concentrator having a boss protruding from the flat plate to assemble the lower plate;

A first sludge treatment unit having a second sludge treatment unit and a second sludge treatment unit,

A second sludge disposal unit disposed in series on the rear end side of the first sludge and having second circulation plates disposed between the second fixed plates for forced flow by the second flow plate driving unit,

A connection part connecting the first sludge processing part and the second sludge processing part,

And a transfer screw installed in an upper space portion of the first sludge processing unit and the second sludge processing unit,

Wherein the first flow plate drive means is inserted through a support hole formed in a support piece provided on both outer walls of each of the second flow plates of the first sludge treatment unit and connected to the main drive means by a power transmission means, 1 camshaft,

And the second flow plate driving means is inserted through support holes formed in support pieces provided on both outer walls of each of the second flow plates of the second sludge processing unit, And a second camshaft rotatably coupled to the first camshaft,

The cam lobe of the cam formed on the first camshaft and the second camshaft is composed of a dehydrator formed spirally from one end to the other end;

A sludge conveying pipe connecting the concentrator and the dehydrator to introduce the concentrated sludge discharged from the concentrator into the dehydrator,

A control valve installed in the sludge transport pipe and

Further comprising a control unit for controlling whether the control valve is open or closed,

And the control unit controls the opening and closing amount of the control valve in accordance with the load of the dehydrator detected by the torque sensor.

The first fixing plate has three shaft coupling portions at intervals of 120 degrees,

And the shaft connecting portion of the first flow plate is formed in two.

A disk-shaped driving coupling which is coupled to a rear end of the first camshaft and forms a pair of insert grooves on the rear surface symmetrical to each other with respect to a center,

And a disk-shaped driven coupling coupled to a front end of the second camshaft and having a pair of inserts protruding from a front surface thereof inserted into the insert groove.

Further, the elastic means inserted into the insert groove of the drive coupling,

A torque sensor installed in the main driving means for measuring a torque and a speed,

A mark formed at regular intervals on the outer circumferential surface of each of the drive coupling and the driven coupling,

An optical sensor installed on the driving coupling and the driven coupling for detecting marks of the driving coupling and the driven coupling,

And a controller for detecting whether the first sludge processing unit or the second sludge processing unit is normal by receiving a signal detected from the torque sensor and the optical sensor.

The sludge concentration apparatus according to the present invention is characterized in that a single apparatus is constituted by a concentrator for agitating, agglomerating and concentrating sludge and a dehydrator for concentrating and dehydrating the sludge to perform sludge treatment through a more efficient and continuous operation There is an advantage that can be optimized.

In addition, since the fixing plate, the flow plate, the fixed shaft, and the eccentric shaft are coupled to each other within the separating tank in which the fixing plate and the fluidizing plate are laminated, there is no obstacle to the rotation of the stirring device, It is possible to reduce the size of the concentrator tank, thereby making it possible to construct a compact concentrator and to prevent the clogging of the sludge due to the positioning of the shaft coupling portion in the separation tank, thereby improving the sludge concentration efficiency per unit time There are advantages.

Further, the present invention is advantageous in that the agitated flaps and the filtrate can be easily separated and discharged since the wings of the agitator are inclined to allow the flakes or the like to flow upward.

In addition, since the present invention is configured such that the wastewater and the medicament are firstly stirred with the lower agitator, and then the secondary agitation is performed using the upper agitator, there is an advantage that the agglomeration efficiency is improved and the concentration performance can be improved.

In addition, since the support bracket provided with the boss is provided in the concentrator tank, the separation tank can be easily mounted and assembled, thereby improving the assembling performance with a simple structure improvement and securing a more stable separation tank support structure There are advantages.

In addition, since the present invention is configured to interconnect the flow plate with a bush having a long cylindrical structure and insert the eccentric shaft therein, the swing motion of the flow plate can be performed, so that the life of the concentrator can be extended by reducing the abrasion of the eccentric shaft And has the advantage of reducing power loss driving the flow plate, thereby enabling more efficient operation of the concentrator.

In addition, the present invention can prevent the deformation of the driving means, which frequently occurs due to the adoption of the conventional integral structure, and the failure due to the adoption of the separated structure of the first sludge disposal unit and the second sludge disposal unit in the dehydrator, The damping effect and the dewatering effect can be remarkably increased due to the accurate flow of the first and second cam shafts. In particular, the durability and the life can be improved by adopting the spiral cam lobe capable of dispersing the load applied to the first and second cam shafts, Structure can be partially checked and repaired so that the maintenance cost can be remarkably reduced and the economical efficiency can be improved. In the event of a failure, the repair time can be shortened because it is possible to accurately ascertain whether the fault occurrence position is the first sludge treatment unit or the second sludge treatment unit And the like.

1 is a view showing a sludge thickening apparatus according to the present invention.
2 is a front view of the concentrator of the sludge concentration apparatus according to the present invention.
FIG. 3 is a side view showing the concentrator of the sludge concentration apparatus according to the present invention.
FIG. 4 is a plan view showing the concentrator of the sludge concentration apparatus according to the present invention.
FIG. 5 is a plan view showing a concentrator tank of the sludge concentration apparatus according to the present invention.
6 is a side view of a concentrator tank of a sludge thickener according to the present invention.
7 is a plan view showing a first fixing plate of the sludge thickening apparatus according to the present invention.
8 is a plan view showing the first flow plate and the first spacer of the sludge thickening apparatus according to the present invention.
FIG. 9 is an assembled state diagram illustrating the eccentric shaft mounting structure of the sludge thickening apparatus according to the present invention.
10 is an exploded view showing the eccentric shaft structure of the sludge thickening apparatus according to the present invention.
11 is a plan view showing an upper agitator of the sludge thickening apparatus according to the present invention.
12 is a front view showing an upper agitator of the sludge thickening apparatus according to the present invention.
13 is a cross-sectional view schematically showing the entire dehydrator according to the present invention.
14 is a view showing a second fixing plate according to the present invention.
15 is a view showing a fixing rod according to the present invention.
16 is a view showing a second flow plate according to the present invention.
17 is a front view and a side sectional view showing a second spacer according to the present invention.
18 is a detailed view of an embodiment showing a gap adjustment state using a second variable spacer according to the present invention.
19 is an exploded perspective view showing an example of a coupling device applied to a dehydrator according to the present invention.
20 is a partially exploded perspective view showing a distribution of load loads that can be applied by the second flow plate during operation according to changes of cam lobes in the first and second cam shafts applied to the dehydrator according to the present invention.
Figs. 21 and 22 are partially exploded perspective views showing examples of changes of the cam lobe in the first and second cam shafts applied to the dehydrator according to the present invention. Fig.
23 is a view showing a process of moving an insert generated due to a resistance applied to a second camshaft in an abnormality in a second sludge processing unit in the dehydrator according to the present invention.

Preferred embodiments of the sludge thickening apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a sludge thickening apparatus according to the present invention.

The sludge thickening device according to the present invention is characterized in that the thickener (I) and the dehydrator (II) are connected to each other to constitute a single device.

For this, the thickener (I) and the dehydrator (II) are connected to each other by a sludge transport pipe (PP), and the concentrated sludge discharged from the thickener (I) flows into the dehydrator (II).

The sludge transport pipe PP is provided with a control valve CV and the control valve CV is controlled by the control unit 700 to determine whether the sludge transport pipe PP is open or closed. The amount of opening and closing of the control valve CV is controlled according to the load of the dehydrator II.

Specifically, when the load detected by the dehydrator II is equal to or greater than a predetermined value, the control unit 700 determines that the operation load of the dehydrator II is excessive and decreases the degree of opening of the control valve CV, By reducing the inflow amount in the dehydrator (II), the dehydrator (II) is prevented from failing.

If it is determined that the load detected by the dehydrator II is less than a predetermined value and the operation load of the dehydrator II is excessively low, the control unit 700 increases the degree of opening of the control valve CV, By increasing the inflow amount in the dehydrator (II) and reducing the rotation speed of the conveying screw to be described later relatively, the retention time can be extended in the dehydrator (II) of the concentrated sludge so that the dehydration efficiency can be sufficiently increased.

Hereinafter, preferred embodiments of the concentrator (I) of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a front view showing the concentrator of the sludge concentration apparatus according to the present invention, FIG. 3 is a side view showing the concentrator of the sludge concentration apparatus according to the present invention, FIG. FIG. 2 is a plan view showing a concentrator of a sludge concentration apparatus according to the present invention.

As shown therein, the concentrator of the present invention comprises a tank base A and a concentrator tank (not shown) disposed vertically on the tank base A for separating and discharging sludge A separating tank 30 installed vertically in the concentrator tank 10 for separating the flocs present in the wastewater, and a separator 30 installed in the lower space of the concentrator tank 10, And a second agitator 60 for agitating the flocculant and the flocculant 60. The wastewater and the medicament which are provided outside the separation tank 30 in the thickener tank 10 and through the lower agitator 60 are stirred And an upper agitator 50 which flows upward.

The central portion of the concentrator tank 10 and a periphery thereof are provided with a driving mechanism 70 for driving the first flow plate 37, the upper agitator 50 and the lower agitator 60 constituting the separation tank 30 together Is installed.

The main components of the concentrator of the present invention will be described in detail with reference to FIGS. 2 to 4 and other drawings.

First, the tank base A comprises support bases 1 vertically erected, and a support plate 2 assembled horizontally on the supporters 1 to support the concentrator tank 10.

The tank base (A) is not a necessary component for constituting the concentrator of the present invention, but may be omitted depending on the conditions of operation, or the shape and structure may be changed.

Next, the thickener tank 10 will be described with reference to FIGS. 5 and 6. FIG.

FIG. 5 is a plan view showing a thickener tank of the sludge thickening apparatus according to the present invention, and FIG. 6 is a side view illustrating a thickener tank of the sludge thickener according to the present invention.

The concentrator tank 10 has a tank body 11 formed in a cylindrical structure and configured to separate and separate the solid material contained in the waste water flowing into the sludge and the filtrate from the sludge and the filtrate, And a lower plate 12 and an upper plate 13 which are respectively coupled to the upper and lower portions of the upper plate 13 and the lower plate 13, respectively.

The inflow pipe 14 is connected to the bottom plate 12 so that the wastewater flows into the bottom plate 12 and a cleaning drain pipe 16 and a spare auxiliary pipe 15 can be constructed as shown in the drawing.

A plurality of sludge discharging portions 17 are disposed in the upper middle portion of the tank main body 11 to discharge sludge such as flocks rising upwardly. Respectively, to the discharge cylinder 17a having a rectangular cylinder structure.

And a filtrate discharging portion 20 for discharging the filtrate of the wastewater from which the sludge has been removed from the separating tank 30 to the outside of the tank is provided at the lower middle portion of the tank main body 11.

The filtrate discharge unit 20 includes a discharge box 21 fixed to the lower plate 32 of the separation tank 30 and a discharge pipe 23 connected to the outside of the tank body 11 in the discharge box 21, And a filtrate discharge tank 25 provided at an end of the discharge pipe 23. At this time, it is preferable that the filtrate discharge tank 25 is disposed at substantially the same or almost similar position as the sludge discharge portion 17 so that the floc can be smoothly discharged.

A plurality of support brackets 18 are formed on the lower side of the tank main body 11 so as to support the separation tank 30.

The support bracket 118 is structured such that the vertical plate 18a and the horizontal plate 18b are mutually fixed in a direction orthogonal to each other and a support plate 18c of a triangular structure is provided at the lower portion thereof to reinforce the support rigidity, A plurality of such structures are installed inside the tank body 11 at predetermined intervals by welding or the like.

Particularly, the support bracket 18 is provided with a boss 18d protruding on the horizontal plate. The lower plate 32 of the separating tank 30, which will be described later, can be easily inserted and assembled.

The lower agitator 60 is installed in the lower space of the concentrator tank 10 around the support bracket 18 and the lower plate 32 and the upper space is provided with the upper agitator 50.

Next, the separating tank 30 will be described.

FIG. 7 is a plan view showing a first fixing plate of the sludge thickening apparatus according to the present invention, and FIG. 8 is a plan view showing a first flow plate and a first spacer of the sludge thickening apparatus according to the present invention.

The separating tank 30 is constructed such that a first fixing plate 35 and a first flow plate 37 having a circular ring shape between the top plate 31 and the bottom plate 32 are alternately stacked as in the enlarged view of FIG. , And has a cylindrical shape as a whole.

The first spacer 38 and the first flow plate 37 are disposed in the separating tank 30 such that the first spacer plate 35 and the first flow plate 37 have a predetermined gap therebetween, (37) is pivotally moved.

Particularly, the first fixing plate 35 and the first flow plate 37 are formed with shaft fitting portions 35a and 37a protruding from the inner surface of the separating tank 30, An eccentric shaft 80 is inserted and coupled to the shaft coupling portion 37a of the first flow plate 37. The fixed shaft 36 is coupled to the shaft coupling portion 35a.

That is, referring to the drawings, three shaft coupling portions 35a are formed in the first fixing plate 35, and three fixing shafts 36 are coupled to the shaft coupling portions 35a and 37a, So that the first fixing plates 35 are fixed. Both ends of the fixed shaft 36 are assembled and fixed to the upper first fixing plate 35 and the lower plate 32, respectively.

A first spacer 38 is interposed between the first flow plate 37 and the first flow plate 37 in the fixed shaft 36. The first spacer 38 is disposed between the first flow plate 37 and the first flow plate 37, Is formed to be thicker than the thickness of the first fixing plate (37) so that a gap is formed between the first fixing plate (35) and the first flow plate (37).

Two eccentric shafts 80 are inserted into the respective shaft coupling portions 35a and 37a to move the first flow plate 37 in the first flow plate 37, .

The first flow plate 37 is operated so that continuous solidification of the sludge can be performed by preventing the solid part such as sludge from being caught between the first flow plate 37 and the first fixing plate 35 while being eccentrically moved by the driving force of the eccentric shaft 80 .

The drive mechanism of the first flow plate 37 will be described in detail when the drive mechanism 70 will be described below.

Since the first fixing plate 35 and the first flow plate 37 of the present invention are configured such that the fixing shaft 36 and the eccentric shaft 80 are coupled to each other in the separating tank 30, It is possible to reduce the phenomenon of foreign matter or the like being caught on the outer circumferential surface of the separating tank 30 without causing a trouble in rotating the upper agitator 50 disposed in the separating tank 30.

Next, the drive mechanism 70 will be described.

2 to 4, the drive mechanism 70 includes a drive motor 71 and a speed reducer 72 disposed above the concentrator tank 10 and a main shaft 73 coupled to the speed reducer 72 And is installed so as to penetrate the central portion of the concentrator tank 10.

The upper end of the main shaft 73 is connected to the speed reducer 72 and the upper agitator 50 and the eccentric shaft 80 are driven to the upper side in the concentrator tank 10. The lower agitator 60 As shown in Fig.

Particularly, the structure for driving the eccentric shaft 80 will be described in detail with reference to FIGS. 9 and 10. FIG.

FIG. 9 is an assembled state diagram illustrating a structure for mounting an eccentric shaft of a sludge thickening apparatus according to the present invention, and FIG. 10 is an exploded diagram illustrating an eccentric shaft structure of a sludge thickening apparatus according to the present invention.

The eccentric shaft 80 driving assembly includes a main shaft gear 74 fixed to the main shaft 73 and two eccentric shaft gears 75 engaged with the main shaft gear 74 to rotate the two eccentric shafts 80, A bushing 85 inserted into the shaft coupling portion 37a of the first flow plate 37 constituting the separating tank 30 and the bushing 85 inserted into the respective eccentric shaft gears 75, And an eccentric shaft 80 which is inserted into the bushing 85.

The bushing 85 is formed in a long pipe structure as shown in FIG. 12, and a bearing mounting portion 85a having an inner diameter expanded to accommodate the bearing 83 is formed at both ends. A ring groove 85b is provided at an end of each bearing mounting portion 85a to mount a snap ring 87 for preventing the bearing 83 from being detached.

The eccentric shaft 80 is provided with a central shaft portion 80a at both ends thereof and the central shaft portion 80a is supported by the upper plate 113 of the separation tank 30 and the lower plate 12 via the support bearing 82 . A keyhole K is formed on the upper central shaft portion 80a so as to be coupled to the eccentric shaft gear 75.

The eccentric shaft 80 has a cam shaft 81 between the central shaft portions 80a and the center of the cam shaft portion 81 is configured to be eccentric from the center shaft portion 80a and the center of rotation, (85).

Since the eccentric shaft 80 is provided with the bearing 83 between the bushing 85 and the bushing 85, the bushing 85 can be moved in the unfrozen state even if the eccentric shaft 80 rotates, As shown in FIG.

Therefore, when the eccentric shaft 80 rotates, the camshaft 81 moves eccentrically from the center of rotation and moves the bushing 85. When the first flow plate 37 coupled to the bushing 85 is rotated Exercise.

The eccentric shaft 80 according to the present invention has a structure in which the camshaft 81 does not directly contact the first flow plate 37 and the swinging movement force is applied to the first flow plate 37 through the bushing 85 The frictional resistance between the eccentric shaft 80 and the first flow plate 37 is greatly reduced and the first flow plate 37 is driven with a small driving force. The enrichment operation can be performed while being efficiently driven.

 Particularly, the eccentric shaft 80 of the present invention has a structure in which the center shaft portion 80a and the cam shaft portion 81 are integrally formed and the eccentric shaft 80 is eccentrically inserted into the bushing 85 in a state where the cam shaft portion 81 is inserted into the bushing 85 So that the assembly structure is simple and more stable power transmission becomes possible.

Next, the lower stirrer 60 will be described with reference to Figs. 2 to 4. Fig.

The lower agitator 60 includes a boss 61 fixed to an end of the main shaft 73 and a plurality of vanes 63 connected to the boss 61 in a horizontal direction. At this time, the wing (63) is formed so as to be inclined upwards with respect to the rotating direction so that the wastewater and the flocculant are stirred while the flushing generated at this time flows upward.

Since the lower agitator 60 causes the wastewater to flow upward in the state of being stirred with the medicine initially injected into the wastewater in the concentrator tank 10, it facilitates the overall generation of the flocs, thereby contributing to enhancement of the concentration efficiency.

Next, the upper agitator 50 will be mainly described with reference to Figs. 11 and 12. Fig.

FIG. 11 is a plan view showing an upper agitator of the sludge thickening apparatus according to the present invention, and FIG. 12 is a front view showing an upper agitator of the sludge thickening apparatus according to the present invention.

The upper agitator 50 has a boss portion 51 coupled to the main shaft 73 at an upper center portion and four horizontal shafts 52 are arranged in a cruciform structure with the boss portion 51 as a center. A support ring 53 having a circular ring structure is connected to the end of the horizontal shaft 52 and is fixed to the blade shaft 55 and the blade shaft 55 downwardly from the end of the horizontal shaft 52 A stirring blade 57 is provided.

The wing shaft 55 and the stirring wing 57 are preferably inclined at a predetermined angle to induce an upward flow of the flock. A lower support ring, such as the support ring 53, 54 are connected to each other.

Since the upper agitator 50 of the present invention is provided with the support rings 53 and 54 for supporting the vane shafts 55 at the upper and lower portions thereof, a rigid stirrer structure can be secured as a whole, So that the upper flow of the flush or the like is smoothly performed, and the separation and discharge performance of the fl uid and the filtrate of the wastewater can be improved.

The concentrator of the present invention as described above is operated as follows.

When the wastewater flows into the thickener tank 10 through the inlet pipe 14, it is mixed with the medicine by the lower stirrer 60 and then flows to the upper portion where the upper stirrer 50 is located.

The wastewater flowing into the space in which the upper agitator 50 is located is accelerated in coagulation action by the operation of the upper agitator 50 so that a large amount of flocs are generated and the generated flocs can not pass through the separation tank 30, Flows to the upper side of the thickener tank 10 by the upper agitator 50, and then is discharged to the outside through the sludge discharge portion 17. [

On the other hand, the filtrate in the wastewater is discharged to the outside through the filtrate discharging part 20 connected to the lower part through the inside of the separating tank 30. At this time, since the first flow plate 37 is oscillated by the operation of the drive mechanism 70, the gap between the separation plate 30, that is, the solid plate between the first plate 35 and the first flow plate 37 A continuous enrichment operation is performed while the phenomenon of the quenching is minimized.

Hereinafter, preferred embodiments of the dehydrator (II) of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 13 is a cross-sectional view briefly showing the entire dehydrator according to the present invention, FIG. 14 is a view showing a second fixing plate according to the present invention, FIG. 15 is a view showing a fixing rod according to the present invention, 17 is a front view and a side sectional view showing a second spacer according to the present invention, and FIG. 18 is a cross-sectional view showing a gap adjustment state using the second variable spacer according to the present invention. Fig. 19 is an exploded perspective view showing an example of a coupling device applied to a dehydrator according to the present invention, and Fig. 20 is a sectional view showing a change in cam lobe at first and second camshafts applied to the dehydrator according to the present invention FIGS. 21 and 22 are partial exploded perspective views showing the distribution of the load applied by the second flow plate during operation according to the present invention. FIGS. 21 and 22 are graphs showing changes in the cam lobe in the first and second camshafts applied to the dehydrator according to the present invention FIG. 23 is a view illustrating a process of moving the insert caused by resistance applied to the second camshaft in the second sludge processing unit in the dehydrator according to the present invention. FIG.

As shown in FIG. 13, the present invention includes a main driving unit, a first sludge treatment unit 100, a second sludge treatment unit 200, a connection unit, a conveyance screw 300, and the like.

The main driving unit includes an electric motor 401 and a speed reducer 402. The electric motor 401 is controlled by the controller 700 to be driven, stopped, and rotated.

13, the first sludge treatment unit 100 includes a plurality of second fixing plates F and a second flow plate R of a ring structure alternately stacked in the longitudinal direction A second spacer SP is disposed between the second fixing plate F and the second fixing plate F so that the second flow plate R can move and the second fixing plate F is provided with a plurality of And the second flow plate R is fixed in such a manner that a stationary hole f2 is formed and a fixing rod 501 having both ends fixed to the casing 500 is inserted and supported in the fixing hole f2, The first flow plate drive means includes a support hole H formed in a support piece S provided on both outer walls of each of the second flow plates R. The first flow plate drive means includes a first flow plate R, And a pair of first cam shafts 101 that are inserted through and rotated.

14 is a view showing a second fixing plate F. As shown in the figure, the second fixing plate F is formed in a ring-like structure in which the conveying screw 300 is positioned and the sludge can pass therethrough, The shaft fixing portion f1 is formed by protruding in three places at an interval of 120 degrees. Of course, the fixing shaft f1 is formed with a fixing hole f2 in which the fixing rod 501 is inserted, so that the fixing rod 501 can penetrate.

It is needless to say that the number and spacing of the shaft fixing portions f1 and their shapes can be variously modified according to the operating conditions.

As shown in FIG. 15, the fixing rod 501 is formed in a long shaft-like structure and has a threaded portion for fastening the fixing nut at both ends.

13, the fixing rods 501 can be fixed to the casing 500 positioned on both sides of each screen structure 100 by fixing the fixing nuts so that the second fixing plates F can be fixed successively do.

16 is a view showing the second flow plate R, which is also formed in a ring-like structure, and a support hole H is formed on both sides so that the first camshaft 101 is fitted. In this case, it is preferable that the support hole H is formed at a position where the fixing rod 501 of the second fixing plate F and the first camshaft 101 do not interfere with each other. In the present embodiment, R) are shown one by one.

17 is a view showing the second spacer SP and is formed in a relatively small circular ring structure as compared with the second fixing plate F and the second flow plate R, the first and second fixing plates F are positioned between the first and second fixing plates F1 and F2 so that the second flow plate R can flow between the second fixing plates F. [

The second spacers SP are formed in a generally hash-like structure and are assembled by being fitted into the fixing rods 501 between the second fixing plates F (see the detail of Fig. 18).

When the first camshaft 101 configured as described above is rotated to flow the second flow plate R, a gap is formed between the second flow plate R and the second fixing plate F, So that the separated water is discharged through the gap between the second flow plate R and the second fixing plate F. In this case,

The first camshaft 101 is connected to the main driving means by a power transmitting means and the power transmitting means is connected to the center shaft 301 of the conveying screw 300 connected to the speed reducer 402 of the main driving means And a driven gear 404 which is installed at the front end of the first camshaft 101 and is gear-engaged with the driving gear 403. The gear ratio of the driving gear 403 and the driven gear 404 is set to be 3: 1 so that the number of revolutions of the first camshaft 101 is made larger than the number of revolutions of the conveying screw 300, It is preferable that the rotational flow speed of the feed screw R is made faster than the rotational speed of the feed screw 300 so that the clogging phenomenon between the second fixing plate F and the second flow plate R is quickly removed.

The second sludge processing unit 200 includes a plurality of second fixing plates F and a second flow plate R having a ring structure in the same manner as the first sludge processing unit 100, The second fixing plate F has a plurality of fixing holes f2 and is fixedly inserted into the fixing holes f2 by inserting the fixing rods 501 having both ends fixed to the casing 500 through the fixing holes f2, And the second flow plate R is forcibly flowed by the second flow plate driving means, and the second flow plate driving means includes a second flow plate R, which is installed on both outer walls of each of the second flow plates R, And a pair of second cam shafts 201 which are inserted through a support hole H formed in the piece S and rotate.

13 and 19, the second camshaft 201 is coupled to the second flow plate driving means by a coupling device. The coupling device includes a first camshaft 201, a second camshaft 201, Like driving coupling 601 formed on the rear surface of the second cam shaft 201 and having a pair of insert grooves 602 symmetrical with respect to the center with respect to the center, And a disk-shaped driven coupling 604 coupled to the front end and having a pair of inserts 605 protruding from the front thereof inserted into the insert groove 602. In addition, a spring 603, which is an elastic means to be inserted into the insert groove 602 of the drive coupling 601, is provided. When the first camshaft 101 rotates, the second camshaft 201 is rotated in the same direction and speed by engaging the insert 605 inserted into the insert groove 602.

The coupling unit is installed between the first sludge disposal unit 100 and the second sludge disposal unit 200, and the coupling unit is located in the inner space.

The transfer screw 300 is a member installed in the upper space portion of the first sludge processing unit 100 and the second sludge processing unit 200 with a spiral blade 302 for transferring sludge, The center shaft 301 is coupled to the speed reducer 402 of the main driving means and rotated when the main driving means is driven.

20, in the present invention, cam lobes (CL) of cams formed on the first camshaft 101 and the second camshaft 201 are spirally formed from one end to the other end, do. As a result, the loads acting on the first camshaft 101 and the second camshaft 201 are canceled each other by acting in multiple directions (multi-direction), so that deflection deformation in one direction of the prior art does not occur, The occurrence is significantly reduced.

The cam lobe CL of the first camshaft 101 and the second camshaft 201 is configured to have a phase difference of 180 degrees at the corresponding point as shown in FIG. The directions of the loads at the corresponding points acting on the second camshaft 201 act in opposite directions to cancel each other.

22, the spiral direction of the cam lobe CL of the first camshaft 101 and the second camshaft 201 may be reversed to each other as shown in Fig. 22, The flow of the sludge flocs passing through the first sludge treating unit 100 can be changed to increase the concentration and dewatering effect in the second sludge treating unit 200. That is, the sludge floc passing through the first sludge disposal unit 100 has an inertia that rotates in a predetermined direction in accordance with the flow direction of the second flow plate R and flows into the second sludge disposal unit 200 The sludge introduced by the second sludge processing unit 200 changes the direction of flow of the second flow plate R, and the flow resistance and the induction change of the sludge flow into the sludge relatively. At this time, the effect of concentration and dehydration of the sludge is increased .

In addition, the present invention further includes a means for diagnosing a failure of the sludge concentrator, specifically, a means for diagnosing a failure of the first sludge disposal unit 100 or the second sludge disposal unit 200.

13, a torque sensor 701 installed in the main driving means for measuring torque and speed, a torque sensor 701 for measuring a torque and a speed of the driving coupling 601 and the driven coupling 604, A mark 702 formed at regular intervals on the drive coupling 601 and the driven coupling 604 and a mark 702 formed on the drive coupling 601 and the driven coupling 604, A control unit 703 for receiving a signal detected from the torque sensor 701 and the optical sensor 703 to detect whether the first sludge processing unit 100 or the second sludge processing unit 200 is normal, (700).

The control unit 700 includes a sludge thickener abnormality determination unit and an abnormal position determination unit.

The sludge thickener abnormality determination section compares the torque and speed values of the main driving means input from the torque sensor 701 with the stored reference values, and when the torque of the main driving means is equal to or higher than the reference value or the speed value is lower than the reference value, And transmits a signal.

The abnormal position determining unit determines whether or not the phase difference between the driving coupling 601 and the passive coupling mark 602 input from the optical sensor 703 is stored when the abnormality signal of the sludge thickener is sent from the abnormality determining unit When the phase difference at the same point of the both couplings 601 and 604 recognized from the marks 702 of the drive coupling 601 and the driven coupling 604 as compared with the reference value is less than the reference value, It is determined that there is an abnormality in the second sludge processing unit 200 when the phase difference exceeds the reference value.

First, the sludge is fixed to the first sludge processing unit 100, the second fixing plate or the second flow plate is damaged, the first camshaft 101 is bent, or the like. A torque is increased in the main drive means and a speed drop occurs, the torque sensor 701 detects this and transmits the detected torque to the control portion 700. In the control portion 700, (700) judges abnormality of the sludge thickener. Since no rotational resistance is generated in the second camshaft 201, the control unit 700 determines the abnormality of the first sludge processing unit 100 because there is no phase difference between the drive coupling 601 and the driven coupling 604.

When a failure occurs in the second sludge processing unit 200, a rotational resistance is generated in the second camshaft 201, so that it is transmitted to the main drive unit via the first camshaft 101, the torque is increased in the main drive unit, The torque sensor 701 detects this and transmits it to the controller 700. The controller 700 determines that the sludge concentrator is abnormal. At this time, due to the rotational resistance of the second camshaft 201, the insert 605 of the driven coupling 604 moves the elastic means in the insert groove 602 of the drive coupling 601, The driving coupling 601 and the driven coupling 604 have a predetermined phase difference and the optical sensor 703 detects the same and transmits the detection result to the control unit 700 so that the control unit 700 controls the second sludge processing unit 200 ) Is determined.

Through the above-described structure, the dehydrator of the present invention can prevent the deformation of the driving means frequently caused by the adoption of the conventional integral structure and the failure due to the deformation of the driving means. By the accurate flow of the second flow plate R The concentration and dehydration effects can be remarkably increased, durability and lifetime can be improved, partial inspection and repair can be made, and the maintenance cost can be remarkably reduced to improve the economical efficiency. In addition, The sludge treatment section 100 or the second sludge disposal section 200 can be grasped accurately and the repairing time can be shortened.

A: Tank base 10: Thickener tank
14: inlet pipe 17: sludge outlet
18: Support bracket 18d: Boss
20: filtrate discharge part 25: filtrate discharge tank
30: Separation tank 31: Top plate
32: lower plate 35: first fixing plate
35a: shaft coupling portion 37: first flow plate
37a: Axial coupling portion 38: First spacer
50: upper stirrer 51: boss part
52: horizontal shaft 53, 54: support ring
55: wing shaft 57: stirring wing
60: lower stirrer 61: boss
63: wing 70: drive mechanism
71: drive motor 72: speed reducer
73: Main shaft 74: Main shaft gear
75: Eccentric shaft gear 80: Eccentric shaft
80a: central shaft portion 81: cam shaft portion
83: Bearing 85: Bushing
87: Snap ring
100: first sludge treatment unit 101: first sludge treatment unit
200: second sludge treatment unit 201: second cam shaft
300: Feed screw 301: Center axis
302: Spiral blade
401: electric motor 402: speed reducer
403: drive gear 404: driven gear
500: casing 501: fixing rod
601: Driving coupling 602: Insert groove
603: spring 604: driven coupling
605: Insert
700: control unit 701: torque sensor
702: Mark 703: Light sensor
F: second fixing plate R: second flow plate
S: Supporting piece H: Supporting ball
CL: Cam Lobe

Claims (4)

A plurality of first fixed plates and a first flow plate having a circular ring structure, and a plurality of first fixed plates and a plurality of first flow plates arranged in a vertical direction and capable of separating and discharging the sludge and the filtrate, A separator for separating sludge by alternately stacking the spacers, and an agitator for stirring the wastewater introduced into the concentrator tank and disposed outside the separator,
The first fixing plate and the first flow plate constituting the separation tank are assembled together by a fixed shaft and an eccentric shaft,
And an axial coupling portion to which the first flow plate and the eccentric shaft are coupled is protruded inward from the inner peripheral surface of the separating tank so that the fixed shaft and the eccentric shaft are engaged with each other Lt; / RTI >
Wherein the separating tank is provided with a lower plate and an upper plate respectively disposed on the lower and upper portions of the first fixing plate and the first flow plate,
Wherein a support bracket for supporting the lower plate is provided on the inner side of the concentrator tank, the support brackets being fixed to each other in a direction orthogonal to the vertical plate and the horizontal plate, a support plate having a triangular structure is provided between the two members, A concentrator having a boss protruding from the flat plate to assemble the lower plate;

A first sludge treatment unit having a second sludge treatment unit and a second sludge treatment unit,
A second sludge disposal unit disposed in series on the rear end side of the first sludge and having second circulation plates disposed between the second fixed plates for forced flow by the second flow plate driving unit,
A connection part connecting the first sludge processing part and the second sludge processing part,
And a transfer screw installed in an upper space portion of the first sludge processing unit and the second sludge processing unit,
Wherein the first flow plate drive means is inserted through a support hole formed in a support piece provided on both outer walls of each of the second flow plates of the first sludge treatment unit and connected to the main drive means by a power transmission means, 1 camshaft,
And the second flow plate driving means is inserted through support holes formed in support pieces provided on both outer walls of each of the second flow plates of the second sludge processing unit, And a second camshaft rotatably coupled to the first camshaft,
The cam lobe of the cam formed on the first camshaft and the second camshaft is composed of a dehydrator formed spirally from one end to the other end;

A sludge conveying pipe connecting the concentrator and the dehydrator to introduce the concentrated sludge discharged from the concentrator into the dehydrator,
A control valve installed in the sludge transport pipe and
Further comprising a control unit for controlling whether the control valve is open or closed,
Wherein the control unit controls the opening and closing amount of the control valve in accordance with the load of the dehydrator detected by the torque sensor
Sludge thickener
The method according to claim 1,
The first fixing plate has three shaft coupling portions at intervals of 120 degrees,
And the shaft connecting portion of the first flow plate is formed of two
Sludge thickener
The method according to claim 1,
The coupling device comprises:
A disk-shaped driving coupling which is coupled to a rear end of the first camshaft and forms a pair of insert grooves on the rear surface symmetrical to each other with respect to a center,
And a disk-shaped driven coupling coupled to a front end of the second camshaft and having a pair of inserts protruding from the front surface thereof inserted into the insert groove.
Sludge thickener
The method of claim 3,
Elastic means inserted into the insert groove of the drive coupling,
A torque sensor installed in the main driving means for measuring a torque and a speed,
A mark formed at regular intervals on the outer circumferential surface of each of the drive coupling and the driven coupling,
An optical sensor installed on the driving coupling and the driven coupling for detecting marks of the driving coupling and the driven coupling,
And a control unit for receiving a signal detected from the torque sensor and the optical sensor and detecting whether the first sludge processing unit or the second sludge processing unit is normal.
Sludge thickener

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