KR100577339B1 - Gravity belt thickener - Google Patents

Abstract

The present invention is generated when the sewage and waste water is purified, and mixed with the sludge settled at the bottom of the sedimentation basin with chemicals and then flowed on the continuously rotating filter belt to separate the solids and free water in the sludge to precipitate collected sludge And a gravity belt concentrator for smoothly performing the final treatment of the chemical mixing unit for adding and mixing a flocculant to the sludge while transferring the sludge collected in a separate sludge collector to a belt thickener along a transfer pipe, and In the chemical mixing unit, the flocculation dispensing tank for moving the sludge mixed with the coagulant upwards to be supplied to the filter belt, and rotatably installed at the end of the agglomeration dispensing tank to spread the evenly on the filter belt while pressing the sludge supplied through the flocculation distribution tank. Floating Dam and the Floating Dam Evenly on the Filter Belt Plunger group for discharging the sludge left and right while passing the unfolded sludge through a plurality of plow members installed in a zigzag and discharging the free water contained in the sludge to the lower side of the filter belt, and the sludge passing through the plow member group under constant pressure. A support dam on the bottom of the filter belt for discharging the sludge so that the free water is discharged from the sludge while passing through the floating dam, the plow member group and the discharge dam while spreading the sludge onto the filter belt by pressing the And a plurality of bars formed into a V-shaped curved surface to remove capillary condensate from the bottom of the filter belt by contacting the bottom of the filter belt, and forcibly separating the sludge adhered to the filter belt from the filter belt while passing through the discharge dam. Concentrated sludge discharge part discharged to discharge hopper and drive roller supporting the filter belt Installed on the driven rollers among the driven rollers and the guide rollers to adjust the tension of the filtration belt to the optimal state at all times, and installed on one frame of the guide rollers among the driving rollers, driven rollers and guide rollers supporting the filtration belt. And a meander detection unit for detecting meandering with a low toe valve for adjusting hydraulic flow according to the movement of the sensing rod and the sensing rod contacting the side of the filter belt, and the meandering of the filter belt detected at the meander detection unit. It is an invention that can be achieved by configuring a gravity belt concentrator with a meander control unit for adjusting the meandering of the filter belt by adjusting the cylinder installed on both sides.

Gravity belt thickener, sludge, dehydration, tension control, meander detection, meander control

Description

Gravity belt thickener             

1 is a perspective view showing a belt concentrator of the present invention

Figure 2 is a side view showing the belt thickener of the present invention

Figure 3 is a plan view showing a belt thickener of the present invention

Figure 4 is a partial enlarged side view showing the operating state of the floating dam according to the present invention

Figure 5 is a plan view showing an extract of the plow member group according to the present invention

6 is a partially enlarged cross-sectional view showing a plow member according to the present invention.

Figure 7 is a side view showing a discharge dam according to the present invention

Figure 8 is an enlarged side view showing the concentrated sludge discharge portion according to the present invention

Figure 9 is a side view showing a tension control unit according to the present invention

10 is a front view showing the meander detection unit according to the present invention;

Explanation of symbols on the main parts of the drawings

10 belt concentrator 20 frame

40: driving roller 50: driven roller

60: guide roller 70: filter belt

71: bar 72: support

100: chemical mixing unit 110: transfer pipe

200: cohesive distribution tank 300: floating dam

310, 610: rotation axis 330, 520: pressing plate

350: weight 400: plow member group

401, 402, 403, 404, 405: plow member 410: support plate

420: hinge shaft 440, 450: plow

460: rubber plate 500: discharge dam

510: support shaft 530: connecting member

560, 660: screw 580, 670: butterfly nut

600: concentrated sludge discharge part L beam: 620

630: connector 640: blade

680: tension spring 700: tension control unit

710, 930: Cylinder 720, 730, 940, 950: Piston Rod

750, 960: Support 760: Rack

770: Pinion 800: meander detection department

820: low toe valve 830, 850: arm

840: detection rod 860: weight

900: meander control unit

The present invention relates to a gravity belt concentrator to improve the sludge generated when the sewage and wastewater is purified to be separated from the water,

In particular, the sewage and wastewater are purified, and the sludge deposited at the bottom of the sedimentation basin is transported by suction, and then mixed with the chemicals and fed onto a continuously rotating filter belt to separate the solids and free water in the sludge, resulting in dewatered sludge. The present invention relates to a gravity belt concentrator for smooth processing.

In general, sediment sludge produced when purifying sewage and wastewater is gradually concentrated to minimize the water content in the sludge to reduce the volume and to speed up the process to minimize the decay, and then final treatment such as landfill or incineration.

In this process, the concentration process concentrates the precipitated sludge to further reduce the moisture content, thereby minimizing the volume entering the final dehydrator.

As the conventional thickener concentrates the sludge precipitated in the sludge collector by the gravity sedimentation method through a residence time of about 24 hours, it is necessary to secure the capacity that can be stayed, and requires the construction of civil works, piping, and pump facilities. Do.

However, the conventional gravity thickener as described above not only has a problem of providing a wide space and digging the ground deeply, but also requires a pipe and associated equipment, and causes bad smell due to long residence time of the sludge, and high concentration. There was a problem that can not obtain the concentrated sludge.

Therefore, an object of the present invention is generated when the sewage and waste water is purified to mix the sludge precipitated at the bottom of the sedimentation basin with the chemical in the chemical mixing unit and then spread evenly on the filter belt continuously rotating through the flocculation distribution tank and the floating dam. As a result, the solids and the free water in the sludge can be separated naturally and quickly while passing through the discharge group of the plow member group, so that the final treatment of the sediment collected sludge can be performed smoothly, and in the cylinder for moving the driven roller. Gravity belt concentrator to adjust the tension of the filter belt by the tension control unit, and to detect and correct the filter belt rotating inclined by the meander detection unit and the meander control unit to always remove the free water while maintaining stable operation. In providing.

The object of the present invention is to transport the sludge collected in a separate sludge collector to the belt concentrator along the transfer pipe while adding a coagulant to the sludge mixed with the drug mixture, the sludge mixed with the coagulant in the drug mixture on the upper side A flocculation dispensing tank which is moved to the filter belt and supplied to the filter belt, a floating dam rotatably installed at the end of the agglomeration dispensing tank, and evenly spread on the filter belt while the sludge supplied through the flocculating dispensing tank is discharged. The plow member group which discharges the sludge left and right by passing the sludge evenly spread on the filter belt by the dam and plunges the sludge left and right to the lower side of the filter belt, and the sludge passed through the plow member group. Press to a constant pressure to spread the sludge onto the filter belt Capillary tube on the bottom of the filter belt is mounted on the support and contacts the bottom of the filter belt to the discharge dam discharged, the bottom of the filter belt for transporting the sludge to discharge the free water from the sludge while passing through the floating dam, the plow member group and the discharge dam A plurality of bars formed with a V-shaped curved surface to remove condensate, a concentrated sludge discharge portion forcibly separating the sludge adhered to the filter belt from the filter belt while passing through the discharge dam, and discharged to the discharge hopper, and the filter belt A tension adjusting part installed at the driven roller among the driven roller and the driven roller and the guide roller supporting the tension belt to always adjust the tension of the filtration belt to an optimal state, and the guided roller, the driven roller and the guide roller supporting the filtration belt. It is installed on one side frame of the roller and touches the side of the filter belt and the movement of the sensing rod. The meandering detection unit detects meandering by a low-to-valve valve that regulates the flow of hydraulic pressure, and the meandering of the filtering belt detected by the meandering detection unit with cylinders installed at both sides of the guide roller to meander the meandering of the filtering belt. This can be achieved by constructing a gravity belt concentrator with the control.

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

Sludge collected in a separate sludge collector not shown is transferred to the belt concentrator 10 along the transfer pipe 110 while mixing and transferring a coagulant to the sludge transferred from the chemical mixing unit 100.

At this time, the chemical mixing unit 100 by vortex moving the sludge mixed with the flocculant while supplying the flocculant so that the flocculant and the sludge is smoothly mixed.

As the flocculant is mixed, the sludge passed through the chemical mixing part 100 is supplied to the filter belt 70 through the flocculation distribution tank 200.

At this time, the agglomeration distribution tank 200 is configured to supply to the filter belt 70 while spreading the sludge primarily transported along the feed pipe 110 from the chemical mixing unit 100 first.

The flocculation dispensing tank 200 of the front end side of the filter belt 70 is provided with a floating dam 300 rotatable up and down so that the sludge can be evenly spread on the filter belt 70.

That is, the floating dam 300 is rotatably installed at both ends of the rotary shaft 310 in the coagulation distribution tank 200, the rotary shaft 310 bolts one side of the pressing plate 330 provided with a handle 340 After fixing to 320, the pressing plate 330 on the opposite side of the rotating shaft 310 is provided with a weight body 350.

The sludge spread on the filter belt 70 by the floating dam 300 is provided with a plurality of plow members 401, 402, 403, 404, 405 in a zigzag group. As it passes, it is repeatedly turned upside down to allow for rapid release of free water.

That is, each of the plow members 401, 402, 403, 404, 405 constituting the plow member group 400 rotatably installs the hinge shaft 420 of the support plate 410 on the frame 20. And, a plurality of plows 440, 450 is fixed to the lower side of the support plate 410, the plurality of plows 440, 450 is the left half of the plow 440 and the right half of the plow 450 Fix inclined to face different directions.

In addition, a plurality of plow members 401, 402, 403, 404, 405 made by fixing a plurality of plows 440, 450 to the support plate 410 are continuously installed on the filter belt 70 When the sludge passes through the plow members 401, 402, 403, 404, and 405 of the plow member group 400 and passes through the plow members 440 and 450 of the plow member group 400, the direction of movement may be reversed. The plow members 401, 402, 403, 404, 405 are installed to be zigzag in the direction of the plows 440, 450.

Meanwhile, each of the plow members 401, 402, 403, 404, and 405 grabs the handle 430 and raises the support plate 410 around the hinge shaft 420 so as to rotate the plow 440 ( In addition to the configuration to facilitate the repair and replacement of the 450, the plow members 401, 402, 403, 404, 405, a rubber plate 460 is installed on the frame 20 on both sides of the sludge plow 440 While passing through the 450 is configured to prevent falling between the filter belt 70 and the frame 20.

The sludge passing through the plow member group 400 passes evenly between the filter belt 70 and the discharge dam 500 to be evenly spread on the filter belt 70 and finally discharge the free water from the sludge.

That is, the discharge dam 500 is fixed to one side of the pressing plate 520 to the support shaft 510 rotatably provided in the frame 20, the other side of the pressing plate 520 bolts the connecting member 530 Fixed to 540, but the connecting member 530 is coupled to the lower end of the screw 560 fastened to the bracket 550, the top of the screw 560 is provided with a handle 570, the butterfly nut 580 By providing a configuration to be able to artificially adjust the gap between the pressing plate 520 and the filter belt (70).

In addition, while passing through the floating dam 300, the plow member group 400 and the discharge dam 500 is seated on the support 72 on the bottom of the filter belt 70 for transporting the sludge to discharge the free water from the sludge It is configured to remove the capillary condensate water from the bottom of the filter belt 70 by installing a plurality of bars 71 formed in a V-shaped curved surface so as to contact the bottom of the filter belt (70).

The sludge passing through the discharge dam 500 is completely separated from the filter belt 70 while passing through the concentrated sludge discharge part 600 installed on the driving roller 40 connected to the driving part 30 to the discharge hopper 690. Fall down.

That is, the concentrated sludge discharge part 600 is rotatably installed on the frame 20, the rotary shaft 610 is provided with an L beam 620, one side of the L beam 620 is in contact with the filter belt 70. It can be configured to adjust the protruding length of the blade 640 while fixing the blade 640 to be a screw 641, the other side of the L beam 620 constitutes the connector 630 with a handle 631 is provided. do.

In addition, the lever 611 is fixed to the rotary shafts 610 on both sides of the L beam 620, and after the screw 660 having the butterfly nut 670 is fastened to the bracket 650, the screw 660. By connecting the lower end of the lever 611 with the tension spring 680, the blade 640 is in contact with the filter belt 70 passing through the drive roller 40 by the elastic force of the tension spring 680 to discharge the concentrated sludge Configure it to be.

The filter belt 70 for discharging the glass water while transporting the sludge is capable of rotating the drive roller 40, the driven roller 50, and the guide roller 60, which are rotatably installed in the frame 20, in an endless track. Although installed, the rotating shaft 51 of the driven roller 50, the filter belt 70 is installed, the tension adjusting part 700 consisting of a cylinder 710, both the piston rods 720, 730 is fixed to the frame 20 It is installed to adjust the tension of the filter belt (70).

At this time, the cylinder 710 of the tension control unit 700 is provided with a bracket 740, and fixed to the bracket 740 by fixing the support 750 for supporting the rotating shaft 51 of the driven roller 50 The driven roller 50 is configured to move the position along with the cylinder 710 which can be moved left and right by the piston rods 720 and 730, and a rack 760 at the bottom of the bracket 740. It is configured to be engaged with the pinion 770 installed in the frame 20 so that the left and right movement of the cylinder 710 is made more stable and smooth.

The filter belt 70 rotates in an endless track by the driving roller 40, the driven roller 50, and the guide roller 60 to filter the sensing rod 840 provided in the roto valve 820. After meandering is detected by the meander detection unit 800 in contact with the side of the belt 70, the detected meandering state is horizontal to the guide roller 60 by the cylinder 930 and the piston rods 940 and 950. Transmitted to the meander control unit 900 for adjusting the tilt is configured to detect and correct the meandering of the filter belt (70).

At this time, the meandering detection unit 800 fixes the fixing plate 810 having the low toe valve 820 to the frame 20, and detects the arm 830 installed vertically downward from the low toe valve 820. The rod 840 is provided to be in contact with the side of the filter belt 70, and the detection rod 840 is installed by installing a weight 860 on the arm 850 installed laterally from the low valve 820. It is configured to be in close contact with the filter belt (70).

In addition, the meander control unit 900 is fixed to the piston rods 940 and 950 of the cylinder 930 to the brackets 910 and 920 fixed to the frame 20, respectively, the guide roller in the cylinder 930 Fixing the support (960) for supporting the shaft of (60), by providing the meander adjustment unit 900 as described above on both sides of the guide roller 60, both sides of the guide roller 60 together with the cylinder 930 Move so that you can correct the meandering.

The present invention configured as described above is a belt concentrator 10 to properly separate the water by improving the sludge generated when the sewage and waste water is purified, the frame 20 for supporting the belt concentrator 10 is made of a steel beam To make.

By supplying the sludge collected in a separate sludge collector as shown in the belt concentrator 10 of the present invention as described above it is possible to obtain the concentrated sludge by discharging the free water from the sludge.

That is, as shown in FIGS. 1 to 3, the sludge conveyed from the sludge collector is supplied with a coagulant to the sludge when passing through the chemical mixing unit 100, and the sludge and the coagulant are mixed with the belt along the conveying pipe 110. When it is sent to the concentrator 10, the sludge in a mixed state of the flocculant is supplied to the filter belt 70 of the belt concentrator 10.

At this time, the chemical mixing unit 100 is to supply the flocculant supplied to the sludge in various directions of the supply pipe to vortex the sludge mixed with the flocculant so that the mixing of the flocculant and the sludge is made smooth.

The improved sludge passed through the chemical mixing part 100 as described above is transferred along the transfer pipe 110, and then flows into the coagulation distribution tank 200 having an appropriate volume and spreads widely on the upper surface of the filter belt 70. Supplied.

At this time, the flocculation distribution tank 200 is supplied to the filter belt 70 in a form in which sludge is supplied to the lower side of the flocculation distribution tank 200 and flows upward, and disperses energy of the sludge introduced through the transfer pipe 110. By not only minimizing turbulence and floc destruction, but also spreading the sludge first transported from the chemical mixing part 100 to the coagulation distribution tank 200 along the delivery pipe 110, the filter belt ( 70).

As shown in FIG. 4, the sludge supplied while being spread on the filter belt 70 by the flocculation dispensing tank 200 is rotatably installed at the end of the agglomeration dispensing tank 200. While being pressed by the dam 300 is slowly spread evenly on the filter belt (70).

At this time, the floating dam 300 is preferably made of a pressing plate 330 made of stainless steel to prevent corrosion, the pressing plate 330 is the sludge overflowed from the coagulation distribution tank 200 filter belt 70 It will spread out evenly.

That is, the pressing plate 330 rotatably provided by the rotation shaft 310 at the end of the agglomeration distribution tank 200 is provided with a weight body 350 and at the same time the weight body 350 is adjusted according to the amount of sludge supplied. Since it is possible to adjust the load of the weight body 350 according to the amount of sludge and the resulting buoyancy to evenly spread the sludge on the filter belt (70).

In addition, since the pressing plate 330 of the floating dam 300 is fixed to the rotating shaft 310 by the bolt 320, the pressing plate 330 smoothly rotates up and down when buoyancy is applied according to the supply amount of the sludge. Since the pressing plate 330 is configured by the handle 340, when not using the pressing plate 330 or when the maintenance of the pressing plate 330, the necessary work while holding the handle 340 and rotating the pressing plate 330 upwards You can do it.

As described above, the sludge spread evenly on the filter belt 70 while passing through the pressing plate 330 of the floating dam 300 is rapidly passed through the plow member group 400 as shown in FIGS. 3 and 5 and 6. Free water discharge is achieved.

That is, the sludge plows along the filtration belt 70 on the filtration belt 70 which is rotated in an infinite orbit by the driving roller 40, the driven roller 50, and the guide roller 60, which are rotated by the driving unit 30. Since the sludge is repeatedly inverted while passing through the plurality of plow members 401, 402, 403, 404 and 405, the zigzag drainage grooves are also formed because they enter the member group 400. Emissions can be achieved.

At this time, the plow members 401, 402, 403, 404, 405 are composed of at least five rows, and more plow members 401, 402, 403, 404, 405 may be configured as necessary. Each plow member 401, 402, 403, 404, 405 constituting the plow member group 400 has a plurality of plows 440, 450 under each support plate 410. Not only one, but the plows 440 and 450 are installed so that the plows 440 on the left side and the plows 450 on the right side face different directions, so that the sludge passes through each plow 440 and 450. Is to be discharged toward the outside of the filter belt 70 or by repeating the process gathered toward the center of the filter belt 70 to discharge the free water.

In addition, as described above, each of the plow members 401 and 402 is formed by the plows 440, 450 to the outer side of the filter belt 70 or collected toward the center of the filter belt 70. Since the plows 440 and 450 installed in the 403, 404, and 405 are configured to face different directions, the sludge moving together with the filter belt 70 is repeatedly flipped from side to side and at the same time, the sludge is zigzag. The furrows of the can be formed to induce a smooth discharge of the free water contained in the sludge.

Meanwhile, the plows 440 and 450 provided in the plow members 401, 402, 403, 404 and 405 are formed on the filter belt 70 by forming a rectangular shape made of a high density polyethylene material. It is possible to form a furrow while turning the sludge stably, and by forming a notch at the tip of the plow 440, 450, it is possible to minimize the attachment of viscous material to the plow 440, 450. do.

The plow member group 400 as described above is configured by installing a plurality of plow members 401, 402, 403, 404, 405, but each of the plow members 401, 402, 403 ( 404 and 405 are configured to rotatably support the support plates 410 of the plow members 401, 402, 403, 404 and 405 provided with the plows 440 and 450. 440) (450) to facilitate the cleaning and maintenance.

That is, each support plate 410 is provided with a plurality of plow 440, 450 has a hinge shaft 420 on one side of both ends and the hinge shaft 420 is rotatably installed in the frame 20 and At the same time, since both ends of the support plate 410 also have a handle 430, the handle 430 is held, and the support plate 410 is rotated around the hinge shaft 420 to be positioned between the support plate 410 and the filter belt 70. The plows 440 and 450 of the plow members 401, 402, 403, 404, 405 are rotated 180 degrees with the support plate 410 to face upwards, and thus the plows face upward. (440) 450 may facilitate the operation of cleaning or replacing.

In addition, the lower side of the frame 20 on which the hinge shaft 420 of the support plate 410 is rotatably supported is provided with a rubber plate 460 so that the filter belt is repeatedly turned left and right by the plows 440 and 450. The sludge on the 70 can be prevented from falling to the side of the filter belt (70).

As described above, the sludge passing through the plow member group 44 on the filter belt 70 passes through the lower side of the discharge dam 500 as shown in FIG. 7 and finally discharges the free water to be in a concentrated sludge state.

That is, the discharge dam 500 is the pressing plate 520 to be rotated around the support shaft 510 is maintained by the screw 560 to maintain a constant height from the filter belt 70 by pressing the plate 520 Not only has the effect of pressing the sludge passing through a constant pressure, but also to spread the sludge was turned left and right by the plow 440 (450) evenly to discharge the remaining free water in the sludge.

At this time, the opposite side pressing plate 520 of the support shaft 510 is coupled to the connecting member 530 by a bolt 540, the coupling member 530 is coupled to the lower end of the screw 560, the screw 560 ) Is fastened to the bracket 550 fixed to the frame 20, so turning the handle 570 provided in the screw 560, the screw 560 rotates to change the height of the pressing plate 520, thereby filtering According to the amount of sludge passing through the discharge dam 500 on the belt 70, the height of the pressing plate 520 can be easily adjusted to discharge the glass water.

In addition, after adjusting the height of the pressing plate 520 by turning the handle 570 as described above, the height of the pressing plate 520 is increased by rotating the butterfly nut 580 provided in the screw 560 to contact the bracket 550. It becomes possible to prevent lowering by self weight.

Meanwhile, the pressing plate 520 of the discharge dam 500 as described above is constructed by attaching a stainless steel angle to the rear side while being made of high-density polyethylene, and then fixing the height after adjusting the height of the pressing plate 520 of the discharge dam 500. In the process of unfolding the sludge while the pressed plate 520 is rubbed with the sludge, it is possible to prevent the press plate 520 from being deformed or damaged due to the load.

Concentrated sludge which finally discharged free water while passing through the discharge dam 500 is concentrated sludge discharge unit 600 in contact with the blade 640 near the central axis of the drive roller 40 as shown in FIG. It is dropped to the discharge hopper 690 by the.

That is, the blade 640 fixed by the screw 641 on one side of the L beam 620 fixed to the rotating shaft 610, one end of the filter belt 70 is slightly above the center axis of the drive roller 40 Since the sludge discharged from the free water while moving on the filter belt 70 is separated from the filter belt 70 by the blade 640, the sludge flows through the blade 640 installed obliquely and falls into the discharge hopper 690. .

At this time, the blade 640 is fixed to the L beam 620 by a screw 641, but is configured to adjust the protruding length by loosening the screw 641 a little, the contact with the filter belt 70 when the blade 640 wears In addition to artificially adjusting the state, when one side of the blade 640 is broken, it is preferable to configure the blade 640 to loosen the screw 641 and to change the front and rear.

In addition, since the blade 640 is configured to receive the elastic force of the tension spring 680 through the lever 611, the rotation shaft 610, and the L beam 620, the blade 640 is the elastic force of the tension spring 680. By contacting the filter belt 70 by a constant force to discharge the sludge, this contact force is adjusted by the tension by rotating the screw 660 fixed to one end of the tension spring 680, the butterfly nut ( 670 is to be used to constantly adjust by the configuration to fasten.

Meanwhile, as described above, the blade 640 for discharging the sludge concentrated in the filter belt 70 may rotate the rotary shaft 610 by pressing down the handle 631 connected to the L beam 620 by the connector 630. Since the blade 640 can also be separated from the filter belt 70, it is possible to check the state of the blade 640 and take necessary measures simply. When the handle 631 is released, the tension spring 680 is provided. Since the blade 640 is returned by the elastic force of the will be able to continue the discharge of the concentrated sludge simply.

The present invention as described above by rotating the filter belt 70 for transporting the sludge to the driving roller 40, the driven roller 50 and the guide roller 60 by connecting the drive unit 30 to the drive roller 40 The rotation of the driving roller 40 is transmitted to the driven roller 50 and the guide roller 60 through the filter belt 70, and the driven roller 50, as shown in FIG. If the installation of the sag of the filter belt 70 by the installation of the driven roller 50 to move the filter belt 70 in the optimal tension state.

That is, the tension adjusting unit 700 installed in the driven roller 50 is rotatably coupled to the bracket 740 of the cylinder 710 using the support shaft 750 of the rotating shaft 51 of the driven roller 50. In addition, since the piston rods 720 and 730 provided in both directions in the cylinder 710 are fixed to the frame 20 of the belt concentrator 10, the piston rod 720 is supplied by supplying hydraulic pressure to the cylinder 71. When the 730 is operated, the cylinder 710 may be moved instead of the piston rods 720 and 730 fixed to the frame 20 to move the driven roller 50, and as a result, the driven roller 50 may be caught. It is to be able to adjust the tension of the filter belt (70).

At this time, the bracket 740 fixed to the cylinder 710 is provided with a rack 760, the rack 760 to the pinion 770 of the shaft connecting the tension adjusting unit 700 on both sides of the driven roller 50 Since the driven roller 50 can be moved without inclination, it is possible to prevent meandering of the filter belt 70 by the tension control.

In particular, the present invention is provided with a meander control unit 900 on both sides of the guide roller 60 for rotating the filter belt 70 in an endless track as shown in Figures 1 and 10, one side of the filter belt 70 The filter belt 70 which rotates in an infinite orbit along the driving roller 40, the driven roller 50, and the guide roller 60 by slightly contacting the sensing rod 840 of the meander detection unit 800 to the side by side When a meandering movement is pushed out, it can be detected and corrected automatically.

That is, when meandering occurs in the filter belt 70, the sensing rod 840 of the meander detecting unit 800 in contact with both sides of the filter belt 70 is pushed to one side.

At this time, by the weight 860 provided with the sensing rod 840 in the low-to-valve valve 820, the sensing rod 840 is always maintained in contact with the side of the filter belt 70, so the sensing by meandering Since the movement of the rod 840 is transmitted to the low toe valve 820 through the arm 830, the low toe valve 820 is rotated by the movement of the sensing rod 840, the rotation of the low toe valve 820 Since it controls the hydraulic pressure transmitted to the cylinder 930 of the meander control unit 900 it is possible to adjust the meandering of the filter belt (70).

That is, when the meandering occurs in the filter belt 70 and the sensing rod 840 and the low toe valve 820 are operated, the hydraulic pressure supplied to the cylinder 930 of the meandering control unit 900 to the low toe valve 820. While being controlled by the piston rod 940, 950 of the cylinder 930 to try to push left and right to correspond to the meandering.

In this case, the piston rods 940 and 950 of the meandering control unit 900 are fixed to the brackets 910 and 920 fixed to the frame 20 so that the piston rods 940 and 950 are moved. The cylinder 930 is operated by the hydraulic pressure, the cylinder 930 is fixed to the cylinder 930 of the meander control unit 900, the support 960 for rotatably supporting the shaft of the guide roller 60 is fixed to the cylinder 930 Guide roller 60 is also moved in accordance with the movement of the) will be able to correct the meandering of the filter belt 70 to rotate in an infinite orbit.

In addition to the above-mentioned belt concentrator 10 of the present invention is to use the drive roller 40 coated with a hard rubber of at least 9mm thickness in order to prevent corrosion and efficient filter belt 70 rotation. Preferably, the driven roller 50 to adjust the tension and the guide roller 60 to adjust the meandering is preferably used by coating with a hard rubber of at least 6mm thickness.

In addition, the belt concentrator 10 may have a high pressure and a small washing device so that the sludge and the filtrate remain in the filter belt 70 so that the sludge concentration may be reduced. As shown in FIG. 3 and FIG. 6, the filter belt 70 is provided below the filter belt 70 by installing a plurality of bars 71 seated on the supporter 72 so as to contact the bottom surface of the filter belt 70. Ensure effective capillary water removal.

At this time, the bar 71 is made of a high-density polyethylene material to prevent the wear of the filter belt 70, as shown in Figure 3 of the smooth curve of the vertex points in the reverse direction of the traveling direction of the filter belt 70 By forming the bar 71 in a V-shape it is possible to more effectively remove the capillary condensate.

On the other hand, by installing a limit switch on both sides of the filter belt 70 to allow the limit switch to operate when excessive meandering of the filter belt 70 occurs, and when the limit switch is operated, a closing signal and an alarm sound are generated. It is possible to stop the concentrator 10.

In addition, in addition to the structure by the operation of the cylinder 710, the tension control unit 700 installed in the present invention may adopt a manual structure that pulls the driven roller 50 by rotating the screw.

As described above, the present invention is generated when the sewage and wastewater are purified, and the sludge deposited at the bottom of the sedimentation basin is mixed with the chemicals in the chemical mixing unit, and then spread evenly on the filter belt continuously rotating through the coagulation distribution tank and the floating dam. As a result, the solid matter and the free water in the sludge are separated naturally and quickly while passing through the discharge group of the plow member group, and thus, the final treatment of the collected sludge is performed smoothly, and the filtration belt is controlled by the tension adjusting part by the cylinder for moving the driven roller. By adjusting the tension of the meander detection unit and the meandering control unit by detecting the filter belt to be inclined to rotate inclined by the always stable operation to remove the glass can be provided.

Claims (9)

In concentrating the sludge by removing moisture from the sludge collected in a separate sludge collector, And the chemical mixing unit 100 is installed in the conveying pipe 110 so that the sludge is conveyed along the conveying pipe 110 to the belt concentrator 10 and added to the sludge and mixed with the sludge, Coagulation distribution tank 200 having a wide upper side configured to move the sludge mixed with the coagulant in the drug mixing unit 100 to the upper side to be widely supplied to the filter belt 70, Rotating shaft 310 is rotatably installed at the end of the agglomeration distribution tank 200 while pressing the sludge supplied through the agglomeration distribution tank 200 with the pressing plate 330 fixed to the rotation shaft 310 to the filter belt 70. Floating dam 300 and evenly spread, The sludge spread evenly on the filter belt 70 by the floating dam 300 passes through a plurality of plow members 401, 402, 403, 404, 405 that are symmetrically installed. A plow member group 400 for discharging the sludge hit by the plows 440 and 450 to the left and right to discharge the free water contained in the sludge to the lower side of the filter belt 70; The sludge passing through the plow member group 400 is constantly pressed by the screw 560 to the pressing plate 520 maintaining a constant height in the filter belt 70, and the sludge is unfolded in the filter belt 70. A discharge dam 500 for discharging free water, Passing through the floating dam 300, the plow member group 400 and the discharge dam 500, the bottom of the filter belt 70 for transporting the sludge to discharge the free water from the sludge is seated in the support 72 and the filter belt (70) a plurality of bars (71) in contact with the bottom to form a V-shaped curved surface to remove the capillary condensate from the bottom of the filter belt (70), The sludge adhered to the filter belt 70 while passing through the discharge dam 600 is forcibly separated from the filter belt 70 by a blade 640 that is in close contact with the filter belt 70 by the elastic force of the tension spring 680. And the sludge discharge part 600 discharged to the discharge hopper 690, The driving roller 40 supporting the filter belt 70 and the driven roller 50 and the guide roller 60 are installed on both sides of the driven roller 50 to operate the cylinder 710 to rotate the cylinder 71. A tension adjusting unit 700 for adjusting the tension of the filtration belt 70 by pulling the rotating shaft 51 of the driven roller 50 which is fixedly possible; The driving roller 40 supporting the filter belt 70, the driven roller 50, and the guide roller 60 are installed on one side frame 20 of the guide roller 60 to be in contact with the side of the filter belt 70. The meander detection unit 800 for detecting meandering with the low toe valve 820 for adjusting the flow of hydraulic pressure according to the sensing rod 840 and the movement of the sensing rod 840, The meandering control unit 900 for adjusting the meandering of the filtering belt 70 detected by the meandering detecting unit 800 to the cylinder 930 installed at both sides of the guide roller 60 to correct the meandering of the filtering belt 70. Gravity belt concentrator, characterized in that consisting of. The method of claim 1, The floating dam 300 is rotatably installed at both ends of the rotary shaft 310 in the coagulation distribution tank 200, the one side of the pressing plate 330 is provided with a handle 340 on the rotary shaft 310 bolt ( After fixing to 320, the pressing plate 330 on the opposite side of the rotary shaft 310 is provided with a weight body 350, the gravity belt concentrator, characterized in that configured to push the sludge by the weight of the weight body 350. The method of claim 1, Each plow member 401, 402, 403, 404, 405 constituting the plow member group 400 is frame 20 of the hinge shaft 420 of the support plate 410 is provided with a handle 430 Rotatable), and a gravity belt concentrator, characterized in that it is configured by fixing a plurality of plows (440, 450) on the lower side of the support plate (410). The method of claim 3, wherein Each of the plurality of plows 440 and 450 has a direction in which the left half of the plow 440 and the right half of the plow 450 are different from each of the plow members 401, 402, 403, 404 and 405. The plows 440 and 450 provided at the plow members 401, 402, 403, 404 and 405 of the plow members 401, 402, 403, 404 and 405 respectively. Gravity belt concentrator characterized in that the sludge is configured to move in an zigzag inverted direction. The method of claim 1, The discharge dam 500 is fixed to one side of the pressing plate 520 to the support shaft 510 rotatably provided in the frame 20, the other side of the pressing plate 520 bolts 540 connecting member 530 And a lower end of the screw 560 fastened to the bracket 550 to the connection member 530, and a butterfly nut 580 on the upper end of the screw 560 provided with a handle 570. Gravity belt concentrator, characterized in that configured to artificially adjust the gap between the pressing plate 520 and the filter belt (70). The method of claim 1, The concentrated sludge discharge part 600 is rotatably installed on the frame 20, the rotary shaft 610 is provided with an L beam 620, one side of the L beam 620 blades in contact with the filter belt 70 After fixing the 640 with the screw 641 and configured to adjust the protruding length of the blade 640, the other side of the L beam 620 constitutes the connector 630 is provided with a handle 631, the One side of the tension spring 680 is fixed to the lever 611 provided on the rotation shaft 610 on both sides of the L beam 620, and the screw 660 provided with the butterfly nut 670 is fastened to the bracket 650. A gravity belt concentrator, characterized in that the blade 640 is fixed to the other end of the tension spring 680 at the lower end of the screw 660 such that the blade 640 contacts the filter belt 70 passing through the drive roller 40. The method of claim 1, The tension control unit 700 is provided with a bracket 740 in the cylinder 710, and fixing the support 750 for supporting the rotating shaft 51 of the driven roller 50 to the bracket 740, After the piston rods 720 and 730 of the cylinder 710 are fixed to the end of the frame 20, the lower end of the bracket 740 is provided with a rack 760 to adjust the tension of both sides of the driven roller 50 Gravity belt concentrator, characterized in that configured to engage the pinion (770) of the shaft connecting the 700. The method of claim 1, The meandering detection unit 800 fixes the fixing plate 810 provided with the low toe valve 820 to the frame 20, and a sensing rod to the arm 830 installed downward from the low toe valve 820. 840 is provided to be in contact with the side of the filter belt 70, the weight 860 is installed on the arm 850 installed laterally from the low-to-valve valve 820 to the weight 860 load Gravity belt concentrator, characterized in that the sensing rod 840 is configured to be in close contact with the filter belt (70). The method of claim 1, The meandering control unit 900 fixes the piston rods 940 and 950 of the cylinder 930 to the brackets 910 and 920 fixed to the frame 20, respectively, and the guide rollers to the cylinder 930. A gravity belt concentrator, characterized in that configured to move both sides of the guide roller (60) by the cylinder (930) by fixing the support (960) rotatably supporting the shaft of the (60).

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