KR100736694B1 - Sludge concentration device - Google Patents

Abstract

A sludge concentration equipment which can improve the concentration efficiency per unit time by connecting fixing shafts and eccentricity shafts at an inner side of a separation tank in which fixed plates and movable plates are stacked, thereby easily designing the arrangement of agitators, enabling a compact concentrator to be constructed, and minimizing a clogging phenomenon of sludge is provided. In a sludge concentration equipment comprising: a concentrator tank(110) which is vertically set up, and in which sludge and filtrate are separated such that the sludge and filtrate are discharged to the outside; a separation tank(130) comprising a plurality of fixed plates(135) and movable plates(137) constructed in a circular ring structure, and spacers(138) for generating an opening between the fixed plates and movable plates, wherein the fixed plates, the spacers, and the movable plates are alternately stacked in the separation tank to filter sludge; and agitators(150,160) disposed at the outer side of the separation tank within the concentrator tank to agitate wastewater flown into the concentrator tank, the sludge concentration equipment is characterized in that: the fixed plates and the movable plates composing the separation tank are assembled with one another by fixing shafts(136) and eccentricity shafts(180) respectively; and shaft joints at which the fixed plates and the fixing shafts are joined with each other and shaft joints at which the movable plates and the eccentricity shafts are joined with each other are projected in an inward direction from an inner peripheral surface of the separation tank such that the fixing shafts and the eccentricity shafts are joined with each other at an inner side of the separation tank.

Description

Sludge concentration device

1 is a cutaway perspective view of a sludge thickening apparatus disclosed in Korean Patent Laid-Open No. 2004-89469;

Figure 2 is an exploded perspective view of the main part of the sludge concentrating device shown in Figure 1,

3 is a block diagram of a screw-type dewatering device disclosed in Patent No. 10-372502,

4 is a front configuration diagram showing a sludge thickening apparatus according to the present invention,

5 is a side configuration diagram showing a sludge thickening apparatus according to the present invention,

Figure 6 is a plan view showing a sludge thickening apparatus according to the present invention,

7 is a plan view showing a concentrator tank of the sludge concentrating device according to the present invention,

8 is a side view showing a concentrator tank of the sludge concentrating device according to the present invention;

9 is a plan view showing a fixing plate of the sludge thickening apparatus according to the present invention,

10 is a plan view showing a flow plate and a spacer of the sludge thickening apparatus according to the present invention,

11 is an assembled state diagram showing an eccentric shaft installation structure of the sludge concentration apparatus according to the present invention,

12 is an exploded view showing the eccentric shaft structure of the sludge concentrating device according to the present invention,

13 is a plan view showing an upper stirrer of the sludge concentrating device according to the present invention,

14 is a front view showing an upper stirrer of the sludge concentrating device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100 tank base 110 thickener tank

114: inlet pipe 117: sludge discharge part

118: support bracket 118d: boss

120: filtrate discharge unit 125: filtrate discharge tank

130: separation tank 131: top plate

132: lower plate 135: fixed plate

135a: shaft coupling portion 137: flow plate

137a: shaft coupling portion 138: spacer

150: upper stirrer 151: boss

152: horizontal axis 153, 154: support ring

155: wing shaft 157: stirring blade

160: lower stirrer 161: boss

163: wing 170: drive mechanism

171: drive motor 172: reducer

173: spindle 174: spindle gear

175: eccentric shaft gear 180: eccentric shaft

180a: center shaft portion 181: cam shaft portion

183: bearing 185: bushing

187: snap ring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for concentrating sludge generated during sewage treatment, and more particularly, to a sludge concentrating device configured to separate a floc and a filtrate by using a vertically separated separator and an agitator.

1 and 2 are views disclosed in Korean Patent Laid-Open Publication No. 2004-89469, which will be described with reference to the conventional sludge thickening apparatus.

As shown therein, a main shaft 565 is disposed at the inner center of the outer casing 561 of the concentrated desorption liquid discharging device 560, and a spiral blade 565a (screw) is integrated on the radial outer surface of the main shaft 565. Is fitted with.

Around the main shaft 565 having the wings 565a is arranged an upper support structure 581 having an upper and lower portions, a plurality of movable discs 567b and a fixed disc 567a, and a lower support structure 582 in the form of a cylindrical enclosure. do. At this time, the upper support structure 581, the movable disc 567b and the fixed disc 567a, and the lower support structure 582, which are integrally coupled, form a screen-shaped structure 580, and the water discharge space therein. (S2) is limited.

On the other hand, the rotary bar 569 is integrally mounted to the main shaft 565 in the radially inner position of the sludge exclusion structure 580. That is, the vertical rod 569a extending in a direction parallel to the main shaft 565, that is, in a vertical direction, and horizontally extending from the upper and lower portions of the vertical rod 569a to support the fixed shaft 565, respectively. It consists of a horizontal rod 569b. Since the inner end of the horizontal bar 569b is fixed to the main shaft 565, the rotation bar 569 rotates together in the same rotational direction as the main shaft 565 when the main shaft 565 rotates.

An annular protrusion 567e is formed at one side of the radially outer surface of the fixed disk 567a. The fixed disks 567a are integrally coupled by a fastening rod 570 fitted to the annular protrusion 567e, and a plurality of spacers 567f having a ring shape between the fixed disk 567a and the movable disk 567b. Is arranged, whereby the fixed disk 567a and the movable disk 567b are spaced apart from each other by a predetermined distance to form a gap G of a predetermined interval.

An annular projection 567f is formed on one side of the radially inner surface of the movable disc 567b. The vertical rod 569a of the rotation bar 569 is fitted into the through hole of the protrusion 567f. The movable discs 567b are integrally coupled by the vertical rods 569a fitted to the annular protrusions 567f, and are disposed in a freely rotatable state between the stationary discs 567a. With the upper support structure 581, the movable disc 567b and the stationary disc 567a, and the lower support structure 582 integrally coupled, the vertical rods 569a of the rotating bar 569 are radially inner surfaces thereof. It is located inside.

When the main shaft 565 is rotated while the sludge and the flocculant are introduced into the flocculation mixing tank 113, the movable disc 567b is maintained at a constant distance from the fixed disc 567a by the spacer 567f. It is moved in the rotational direction of the 565 to swing in a manner that rotates with respect to the stationary disk 567a.

However, the conventional sludge thickening device as described above, when the stirrer rod 570 is fitted to the outside of the sludge exclusion structure 580 is configured to interconnect the fixed disk 567a, when the stirrer is installed outside the sludge exclusion structure, There is a problem that interference with the stirrer may occur, or the solid content may be caught in a portion protruding to the outside to lower the concentration efficiency.

Of course, the width of the stirrer can be reduced in order to prevent interference with the stirrer, but at this time, a problem of lowering the stirring performance occurs, and if the size of the outer casing 561 is increased, a problem that the volume of the apparatus is increased as a whole occurs. Done.

In addition, in the above-described conventional sludge thickening apparatus, the vertical rod 569a or the like is directly connected to the main shaft without using an eccentric shaft structure in driving the movable disc 567b, and the vertical rod 569a is directly inserted into the movable disc. Since the movable disc is completely rotated, excessive power loss occurs as a whole, and the vertical rod 569a and the movable disc are directly coupled to each other, so that the combined parts are easily worn and the life of the concentrator is increased. There is also a problem that this becomes significantly shorter.

On the other hand, the applicant has filed a patent (patent registration No. 10-372502) for the screw type dewatering device that is similar to the sludge concentrating device above.

Applicant's patent invention is a dehydration apparatus for separating and treating the sludge contained in the waste water is provided with a screw shaft 31, the separation means 20 is arranged by stacking two kinds of movable plates in the horizontal direction.

The patent invention is provided with a plate driving means 40 for rocking the movable plate, the connection pipe 41 is inserted into each movable plate is connected, the rotary shaft 42 is inserted into the connection pipe On both ends of the rotary shaft, cams 43 are respectively provided.

In addition, the outer surface where the connecting pipe 41 and the cam 43 are connected is installed in a structure in which the colors 411 and 412 are covered.

Such a patent invention has a structure of a horizontal concentrator, and a screw 30 is installed therein, so that the rotating shaft 42 and the connecting pipe 41 for driving the movable plate are made of the movable plates. It is configured to be connected in the outer space, not the inner space of the separating means 20.

In particular, the connecting tube 41 and the rotating shaft 42 for driving the movable plate are not provided with a cam 43 for generating an eccentric movement force directly in the connecting tube 41, but are located outside the connecting tube 41 and the colors. Since 411 and 412 are configured to transmit the eccentric rotational force of the rotating shaft, the power transmission structure as well as durability may be weak, and thus, when used for a long time, the coupling relationship between the components is loosened, so that normal operation may not be made or is easily performed. There is a problem that may occur.

In addition, the configuration is complicated by the use of a plurality of drive parts, there is also a problem that is difficult to assemble and disassemble.

The present invention has been made in order to solve the above problems, the fixed shaft and the eccentric shaft is configured to be coupled to the inside of the separation tank consisting of a fixed plate and a fluid plate is laminated, the arrangement design of the stirrer becomes easy, and the compact concentrator can be configured It is an object of the present invention to provide a sludge concentrating device that can improve the concentration efficiency per unit time by minimizing the blockage of sludge.

In addition, an object of the present invention is to provide a sludge concentrating device that is configured to be inclined so that the blades of the stirrer can flow the flop, etc. to the upper portion to facilitate the separate discharge of the flocculated floc and the filtrate.

In another aspect, the present invention is to provide a sludge concentrating device that can improve the flocculation efficiency by improving the flocculation efficiency by generating a floc while stirring the waste water and the drug with a lower stirrer first, and then a second stirrer using an upper stirrer There is a purpose.

In another aspect, the present invention provides a sludge concentrating device that can improve the assemblability with a simple structure and secure a stable support structure of the separation tank by having a support bracket provided with a boss to easily mount and assemble the separation tank in the concentrator tank. The purpose is to.

In particular, the present invention by connecting the flow plate to the bushing, and inserting the eccentric shaft in the inside to enable the movement of the flow plate to reduce the wear of the eccentric shaft, while reducing the power loss, more efficient concentrator operation is possible It is an object of the present invention to provide a sludge thickening apparatus.

The sludge concentrating device according to the present invention for realizing the above object is a concentrator tank which is constructed in a vertical direction and separated from the sludge and the filtrate separated therein, and a plurality of fixed plates and flow formed of a circular ring structure In the sludge concentrating apparatus including a plate and a spacer for generating a gap therebetween are alternately stacked to filter the sludge, and a stirrer disposed outside the separator in the concentrator tank to agitate the wastewater introduced. The fixed plate and the fluidized plate constituting the separation tank are assembled to each other by a fixed shaft and an eccentric shaft, respectively, the shaft coupling portion to which the fixed plate and the fixed shaft are coupled, and the shaft coupling portion to which the fluid plate and the eccentric shaft are coupled, Protruding inward all the way, the fixed shaft and the eccentric shaft is configured to be coupled to the inside of the separation tank It characterized.

Three shaft coupling portions of the fixed plate are formed at intervals of 120 degrees, and two shaft coupling portions of the flow plate are preferably formed.

The flow plate is preferably configured such that the bushing having a long cylindrical structure is fitted to each other at its own shaft coupling portion, and the eccentric shaft is inserted into the bushing to transmit the eccentric kinetic force to the flow plate.

The stirrer may include: a boss portion provided at an upper center portion and coupled to a main shaft transmitting a driving force; a plurality of horizontal shafts disposed radially around the boss portion; and a wing shaft connected downward from an end of each horizontal axis; It may be configured to include a stirring blade fixed to each of the blade shaft, and a plurality of support rings for connecting the plurality of horizontal shaft and the blade shaft in the upper and lower sides of the stirrer, respectively.

The vane shaft and the stirring vane are preferably arranged at an angle to incline to induce an upward flow of the floc.

The stirrer is preferably composed of a lower stirrer positioned below the separation tank in the concentrator tank and primarily stirring wastewater and flocculant, and an upper stirrer positioned around the separation vessel and performing secondary stirring.

The separation tank is provided with a lower plate and a top plate respectively disposed on the bottom and the top of the fixed plate and the flow plate is stacked, the support bracket for supporting the bottom plate is installed inside the concentrator tank, the support bracket is a vertical plate and a horizontal plate It is preferable that the support plate of a triangular structure is installed between the two members in a mutually orthogonal direction, and a boss protrudes so that the lower plate is fitted into the horizontal plate.

In addition, the sludge concentrating device according to the present invention for realizing the above object is, a concentrator tank configured to separate the sludge and the filtrate and discharged, a plurality of fixed plates and flow plates formed of a circular ring structure, and a gap therebetween. In the sludge thickening apparatus including a separation tank for generating a sludge is alternately stacked to filter the sludge, and a drive mechanism for swinging the flow plate of the separation tank, the flow plate is formed of a long cylindrical structure in its shaft coupling portion Bushings are fitted to each other, the eccentric shaft rotated by the drive mechanism is inserted into the bushing is characterized in that configured to transmit the eccentric kinetic force to the fluid plate through the bushing.

Here, the eccentric shaft is preferably composed of a central shaft portion provided at both ends and a cam shaft portion which is integrally connected between the central shaft portion and located inside the bushing.

Preferably, a bearing is provided between the eccentric shaft and the bushing.

In addition, the sludge concentrating device according to the present invention for realizing the above object, a concentrator tank which is built in the vertical direction and separated from the sludge and the filtrate separated from the inside, a plurality of fixed plates consisting of a circular ring structure and In the sludge concentrating apparatus including a fluidized plate and a separation tank for generating a gap therebetween to alternately stack the sludge to filter the sludge, and an agitator disposed outside the separation tank in the concentrator tank to agitate the wastewater introduced. The stirrer may include: a boss portion provided at an upper center portion and coupled to a main shaft transmitting a driving force; a plurality of horizontal shafts disposed radially around the boss portion; and a wing shaft connected downward from an end of each horizontal axis; Stir blades fixed to the respective blade shafts, and upper and lower sides of the stirrer It characterized by including a plurality of support rings connected to each of the plurality of the horizontal axis and the wing axis.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

4 is a front configuration diagram showing a sludge thickening apparatus according to the present invention, Figure 5 is a side configuration diagram showing a sludge thickening apparatus according to the present invention, Figure 6 is a plan view showing a sludge thickening apparatus according to the present invention It is a block diagram.

As shown in this, the sludge concentrating device according to the present invention, the tank base 100, and installed on the tank base 100 in a vertical direction to agglomerate wastewater in which the drug is injected to separate the sludge (flush) and the filtrate and discharged The concentrator tank 110, which is installed in the concentrator tank 110 in the vertical direction to separate the flocs existing in the waste water, and is installed in the lower space of the concentrator tank 110 into the tank The lower stirrer 160 for primary agitation of the incoming wastewater and the flocculating agent, and the waste water and the medicament that are passed through the lower stirrer 160 in the concentrator tank 110 and passed through the lower stirrer 160 are secondary. It consists of an upper stirrer 150 which forms a floc while stirring and flows upward.

In addition, a driving mechanism 170 for driving the flow plate 137, the upper stirrer 150, and the lower stirrer 160 configured together with the separation tank 130 is disposed at the center portion and around the center of the concentrator tank 110. Is installed.

Such major components of the sludge concentrating device of the present invention will be described in detail with reference to FIGS. 4 to 6 and other drawings.

First, the tank base 100 is composed of supports 101 which are erected vertically, and a support plate 102 which is assembled in the horizontal direction on the supports 101 to support the concentrator tank 110.

This tank base 100 is not necessarily a component necessary for constituting the sludge thickening apparatus of the present invention, and may be omitted or changed in shape and structure depending on the implementation conditions.

Next, the concentrator tank 110 will be described with further reference to FIGS. 7 and 8.

7 is a plan view of the concentrator tank 110, and FIG. 8 is a side view of the concentrator tank 110.

The concentrator tank 110 is configured to separate and discharge the solids contained in the wastewater introduced into the wastewater, that is, the sludge and the filtrate, and the tank main body 111 having a cylindrical structure, and the tank main body 111. The lower plate 112 and the upper plate 113 are respectively coupled to the upper and lower portions of the.

The inlet pipe 114 is connected to the lower plate 112 so that the waste water is introduced, and additionally, a cleaning drain pipe 116 and a spare auxiliary pipe 115 may be configured as shown in the drawing.

In the upper middle portion of the tank body 111 is provided with a plurality of sludge discharge portion 117 for discharging the sludge, such as the flocculated upwards, the sludge discharge portion 117 is open to the side of the tank side. It is connected to each of the discharge cylinder 117a of the rectangular cylinder structure attached in a structure.

The lower middle portion of the tank body 111 is provided with a filtrate discharge unit 120 for discharging the filtrate of the waste water from which the sludge is removed from the separation tank 130 to the outside of the tank.

The filtrate discharge unit 120 and the discharge box 121 is fixed to the lower plate 132 of the separation tank 130, and the discharge pipe 123 connected to the tank body 111 outside the discharge box 121 and , Consists of a filtrate discharge tank 125 provided at the end of the discharge pipe 123. At this time, the filtrate discharge tank 125 is preferably configured to be disposed in a position substantially the same or almost similar to the sludge discharge portion 117 to facilitate the discharge of the floc.

A plurality of support brackets 118 are configured at the lower side of the tank body 111 to support the separation tank 130.

The support bracket 118 is formed of a structure in which the vertical plate 118a and the horizontal plate 118b are mutually fixed in a direction perpendicular to each other, and a triangular support plate 118c is installed to reinforce the support rigidity at the lower portion thereof. A plurality of such structures are installed in the tank body 111 at regular intervals by welding or the like.

In particular, the support bracket 118 is a boss 118d protrudes over the horizontal plate, which is configured to be assembled while simply fitting the lower plate 132 of the separation tank 130 to be described later.

The lower stirrer 160 is installed in the lower space of the concentrator tank 110 around the support bracket 118 and the lower plate 132, and the upper stirrer 150 is installed in the upper space.

Next, the separation tank 130 will be described.

9 is a plan view of the fixing plate 135 constituting the separation tank 130, and FIG. 10 is a plan view of the flow plate 137 and the spacer 138 constituting the separation tank 130.

Separation tank 130 is a fixed plate 135 and a flow plate 137 having a circular ring shape between the upper plate 131 and the lower plate 132 are alternately stacked as shown in the enlarged view of FIG. Configured to have a phase.

The separation tank 130 is disposed so that the fixed plate 135 and the flow plate 137 have a predetermined gap by the spacer 138, and the flow plate 137 is oscillated by the driving mechanism 170. It is composed.

In particular, the fixing plate 135 and the flow plate 137 are formed by projecting the shaft coupling portions 135a and 137a to the inside of the separation tank 130 on the inner circumferential surface, respectively, the shaft coupling portion 135a of the fixing plate 135. The fixed shaft 136 is fitted and coupled, the eccentric shaft 180 is fitted to the shaft coupling portion 137a of the flow plate 137 is coupled.

That is, referring to the drawings, three shaft coupling parts 135a are formed on the fixing plate 135, and three fixing shafts 136 are coupled to each of the shaft coupling parts 135a and 137a and alternately arranged. Each fixed plate 135 is fixed. Both ends of the fixed shaft 136 are assembled and fixed to the upper fixing plate 135 and the lower plate 132, respectively.

In this case, a spacer 138 is inserted into the fixed shaft 136 between the flow plate 137 and the flow plate 137, and the spacer 138 is formed to be thicker than the thickness of the flow plate 137. A gap is generated between the fixed plate 135 and the flow plate 137.

Two axial coupling portions 137a are formed in the flow plate 137, and two eccentric shafts 180 are inserted into the axial coupling portions 135a and 137a to move the flow plate 137. .

The flow plate 137 serves to enable continuous sludge concentration operation by preventing solids such as sludge from being caught between the fixed plate 135 and the eccentric motion by the driving force of the eccentric shaft 180. Done.

The driving structure of the flow plate 137 will be described in detail when describing the driving mechanism 170 to be described below.

As described above, the fixing plate 135 and the fluid plate 137 of the present invention are configured to be coupled to the fixed shaft 136 and the eccentric shaft 180 inside the separating tank 130, and thus the upper portion disposed outside the separating tank 130. Without forming an obstacle in the rotation of the stirrer 150, it is possible to reduce the phenomenon that foreign matters are caught in the outer peripheral surface of the separation tank (130).

Next, the drive mechanism 170 will be described.

4 to 6, a drive motor 171 and a reducer 172 are installed on the concentrator tank 110, and a main shaft 173 coupled to the reducer 172 is provided. It is installed to penetrate the central portion of the thickener tank 110.

The main shaft 173 has an upper end connected to the reducer 172, and is configured to drive the upper stirrer 150 and the eccentric shaft 180 on the upper side in the concentrator tank 110, and the lower stirrer 160 on the lower side. ) Can be driven.

In particular, the structure for driving the eccentric shaft 180 will be described in detail with reference to FIGS. 11 and 12.

11 is an assembled state diagram showing an eccentric shaft 180 installation structure, and FIG. 12 is an exploded view showing the eccentric shaft 180 structure.

The eccentric shaft 180 drive assembly includes a main shaft gear 174 fixed to the main shaft 173 and two eccentric shaft gears 175 meshed with the main shaft gear 174 to rotate the two eccentric shafts 180. ), A bushing 185 respectively inserted into the shaft coupling portion 137a of the flow plate 137 constituting the separation tank 130, and each bushing in a state of being coupled to each of the eccentric shaft gears 175. It consists of an eccentric shaft 180 is inserted into the inside of (185).

In this case, the bushing 185 is formed in a long pipe structure as shown in FIG. 12, and a bearing installation part 185a having an inner diameter extended to install the bearing 183 at both ends thereof. In addition, a ring groove 185b is provided at an end of each bearing installation part 185a, and a snap ring 187 is installed to prevent the bearing 183 from being separated.

The eccentric shaft 180 is provided with a central shaft portion 180a at both ends, and the central shaft portion 180a is supported by the upper plate 113 and the lower plate 112 of the separation tank 130 through the support bearing 182. do. A key hole K is formed in the upper center shaft portion 180a to be coupled to the eccentric shaft gear 175.

In addition, the eccentric shaft 180 has a cam shaft portion 181 is formed between the central shaft portion 180a, the center of the cam shaft portion 181 is configured to be eccentric from the center shaft portion 180a and the rotation center of the bushing It is inserted into and positioned inside 185.

At this time, since the bearing 183 is installed between the eccentric shaft 180 and the bushing 185, even when the eccentric shaft 180 rotates, the bushing 185 is coupled to the flow plate 137 without being restrained. It is configured to be.

Accordingly, when the eccentric shaft 180 is rotated, the cam shaft 181 moves the bushing 185 while eccentrically moving from the center of rotation, and the flow plate 137 coupled to the bushing 185 performs the swinging motion. Done.

The eccentric shaft 180 installation structure of the present invention as described above is configured so that the cam shaft portion 181 does not directly contact the flow plate 137, but transmits the swinging motion force to the flow plate 137 through the bushing 185. Therefore, the occurrence of wear of the eccentric shaft 180 can be minimized, and at the same time, the frictional resistance between the eccentric shaft 180 and the flow plate 137 is greatly reduced, and the concentrated plate 137 is efficiently driven with a small driving force. You can do it.

 In particular, the eccentric shaft 180 of the present invention is eccentric to the bushing 185 in a state in which the central shaft portion 180a and the cam shaft portion 181 are integrally formed so that the cam shaft portion 181 is long inserted into the bushing 185. By transmitting the kinetic force, the assembly structure is simple and more stable power transmission is possible.

Next, the lower stirrer 160 will be described with reference to FIGS. 4 to 6.

The lower stirrer 160 includes a boss 161 fixed to the end of the main shaft 173 and a plurality of wings 163 connected to the boss 161 in a horizontal direction. At this time, the wing 163 is formed to be inclined upward with respect to the rotation direction while stirring the waste water and the flocculant, it is configured to flow the generated flocs and the like to the top.

The lower stirrer 160 flows the wastewater upwards in a state in which it is stirred with the chemicals introduced into the wastewater primarily in the concentrator tank 110, thereby contributing to the smooth generation of the floc as a whole to increase the concentration efficiency.

Next, the upper stirrer 150 will be mainly described with reference to FIGS. 13 and 14.

13 is a top view of the upper stirrer 150 and FIG. 14 is a front view of the upper stirrer 150.

The upper stirrer 150 is provided with a boss portion 151 coupled to the main shaft 173 at the upper central portion, and four horizontal shafts 152 are arranged in a cross structure around the boss portion 151. A support ring 153 having a circular ring structure is connected to the end of the horizontal shaft 152, and is fixed to the wing shaft 155 and the wing shaft 155 in a downward direction from the end of the horizontal shaft 152. The stirring blade 157 is provided.

At this time, the blade shaft 155 and the stirring blade 157 is preferably disposed to be inclined at an angle to induce an upper flow of the floc, the lower support ring such as the support ring 153 at the lower end of the blade shaft 155 ( 154 is preferably configured to be connected.

Since the upper stirrer 150 of the present invention is provided with support rings 153 and 154 for supporting the blade shaft 155 in the upper and lower sides, it is possible to ensure a solid stirrer structure as a whole, in particular the stirring blade 157 Since it is made to be inclined upward in the rotation direction, it is possible to smooth the upper flow of the floc, etc., it is possible to improve the separated discharge performance of the floc and the filtrate of the waste water.

The sludge thickening apparatus according to the present invention as described above is operated as follows.

When the wastewater is introduced into the concentrator tank 110 through the inlet pipe 114, the waste water is mixed and stirred by the lower stirrer 160, and then flows to the upper portion where the upper stirrer 150 is located.

The wastewater flowing into the space in which the upper stirrer 150 is located generates a large amount of floc as the coagulation action is accelerated by the operation of the upper stirrer 150, and the generated floc does not pass through the separation tank 130. After flowing to the upper side of the thickener tank 110 by the upper stirrer 150 is discharged to the outside through the sludge discharge portion 117.

On the other hand, the filtrate in the waste water is discharged to the outside through the filtrate discharge unit 120 connected to the lower through the separation tank 130. At this time, since the fluid plate 137 is oscillated by the operation of the driving mechanism 170, the gap between the separation tank 130, that is, the phenomenon that the solid is caught between the fixed plate 135 and the fluid plate 137 is minimized. Continuous concentration operation is achieved in the state.

The sludge thickening apparatus according to the present invention configured as described above has the following effects.

In the present invention, since the fixed plate and the fluidized plate and the fixed shaft and the eccentric shaft are configured to be coupled inside the separation tank in which the fixed plate and the fluid plate are stacked, the design of the arrangement of the agitator installed outside the separation tank does not cause an obstacle in the rotation of the agitator. It is easy to reduce the size of the concentrator tank, which makes it possible to construct a compact concentrator.As the shaft coupling part is located inside the separation tank, the blockage of sludge is reduced, thereby improving the sludge concentration efficiency per unit time. There are advantages.

In addition, since the present invention is configured to be inclined so that the blade of the stirrer can flow the flocks, etc., there is an advantage that the separated flocculation and the filtrate can be easily discharged.

In addition, since the present invention is configured to enable first stirring of the waste water and the medicament with the lower stirrer, the second stirrer is possible using the upper stirrer, thereby improving the coagulation efficiency and thus improving the concentration performance.

In addition, since the present invention is provided with a support bracket provided with a boss in the concentrator tank, the separation tank can be easily mounted and assembled, and accordingly, a simple structure can be improved to improve the assemblability and secure a more stable separation tank support structure. have.

In addition, the present invention is to interconnect the flow plate to the bushing having a long cylindrical structure, it is possible to extend the life of the concentrator by reducing the wear of the eccentric shaft because it is configured to allow the movement of the flow plate by inserting the eccentric shaft therein In particular, there is an advantage in that a more efficient concentrator operation is possible by reducing the power loss driving the fluidized plate.

Claims (11)

The thickener tank, which is erected in the vertical direction and separated from the sludge and the filtrate, is discharged separately, a plurality of fixed plates and fluidized plates formed of a circular ring structure, and spacers generating a gap therebetween are alternately stacked. In the sludge concentrating device including a separation tank for filtering sludge, and a stirrer disposed outside the separation tank in the concentrator tank to agitate the introduced waste water, The fixed plate and the fluidized plate constituting the separation tank are assembled to each other by a fixed shaft and an eccentric shaft, The shaft coupling portion to which the fixed plate and the fixed shaft are coupled, and the shaft coupling portion to which the fluid plate and the eccentric shaft are coupled protrude inward from the inner circumferential surface of the separation tank, so that the fixed shaft and the eccentric shaft are coupled to the inside of the separation tank. Sludge thickening apparatus. The method according to claim 1, Three shaft coupling portions of the fixed plate is formed at 120 degree intervals, Sludge concentrating device, characterized in that formed by two shaft coupling portion of the flow plate. The method according to claim 1, The flow plate is sludge thickening apparatus characterized in that the bushing having a long cylindrical structure is fitted to each other in its shaft coupling portion, the eccentric shaft is inserted into the bushing to transfer the eccentric kinetic force to the fluid plate. The method according to claim 1, The stirrer may include: a boss portion provided at an upper center portion and coupled to a main shaft transmitting a driving force; a plurality of horizontal shafts disposed radially around the boss portion; and a wing shaft connected downward from an end of each horizontal axis; And a plurality of support rings for respectively connecting the stirring vanes fixed to the respective vane shafts, and the plurality of horizontal and vane shafts at upper and lower sides of the agitator, respectively. The method according to claim 4, The sludge thickening device, characterized in that the blade shaft and the stirring blade is arranged to be inclined at an angle to induce the upper flow of the floc. The method according to claim 1, The stirrer is composed of a lower stirrer located in the condenser tank, the lower stirrer for the first stirring of the waste water and the flocculant, and the upper stirrer for the second stirrer located in the circumference of the separation tank . The method according to claim 1, The separation tank is provided with a lower plate and a top plate respectively disposed on the bottom and the top of the fixed plate and the flow plate, A support bracket for supporting the lower plate is installed inside the concentrator tank, and the support bracket is fixed to each other in a direction perpendicular to the vertical plate and the horizontal plate, and a support plate having a triangular structure is installed between the two members. Sludge concentrating device characterized in that the boss is projected so that the lower plate is fitted to the plate. A concentrator tank configured to separate and discharge the sludge and the filtrate, a plurality of fixed plates and fluidized plates having a circular ring structure, and spacers for generating gaps therebetween, which are alternately stacked to filter sludge, and the separation tank. In the sludge concentrating device including a drive mechanism for rocking the flow plate of the tank, The flow plates are coupled to each other by a bushing having a long cylindrical structure fitted to its shaft coupling portion, and an eccentric shaft rotated by the drive mechanism is inserted into the bushing to provide an eccentric kinetic force to the flow plate through the bushing. Sludge concentrating device, characterized in that configured to deliver. The method according to claim 3 or 8, The eccentric shaft is a sludge thickening apparatus comprising a central shaft portion provided at both ends and a cam shaft portion which is integrally connected between the central shaft portion and positioned inside the bushing. The method according to claim 3 or 8, Sludge concentrating device characterized in that the bearing is provided between the eccentric shaft and the bushing. The thickener tank, which is erected in the vertical direction and separated from the sludge and the filtrate, is discharged separately, a plurality of fixed plates and fluidized plates formed of a circular ring structure, and spacers generating a gap therebetween are alternately stacked. In the sludge concentrating device including a separation tank for filtering sludge, and a stirrer disposed outside the separation tank in the concentrator tank to agitate the introduced waste water, The stirrer may include: a boss portion provided at an upper center portion and coupled to a main shaft transmitting a driving force; a plurality of horizontal shafts disposed radially around the boss portion; and a wing shaft connected downward from an end of each horizontal axis; And a plurality of support rings for respectively connecting the stirring vanes fixed to the respective vane shafts, and the plurality of horizontal and vane shafts at upper and lower sides of the agitator, respectively.

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