KR200364682Y1 - screen apparatus which removes sludge from wastewater - Google Patents

Abstract

The present invention relates to a sludge separation device for wastewater, and the screen device is a device for separating wastewater sludge with a screen device for separating wastewater and sludge. Flow rate adjusting member for circulating the waste water to be adjusted to adjust the flow rate of the waste water; A filtration screen member connected to the flow rate adjusting member, and the wastewater is discharged through the filtration hole by the cylindrical filtration screen having a plurality of filtration holes formed on an outer circumferential surface thereof, and the sludge is moved to a primary outlet; And a pressurized dewatering member for separating sewage from the sludge introduced from the primary outlet by the rotation of the rotating screw. The sewage and sludge are separated from the wastewater. By such a design, even if the waste water of different properties is introduced or the amount of waste water flows in, the flow rate can be distributed by the flow adjusting tank, so that the waste water flowing excessively to the filtration screen can be adjusted to effectively separate the sludge. It is also possible to wash the filter screen by the water sprayed by the cleaning brush and the injection pipe, it is possible to separate the sludge with a reduced water content by dewatering the sludge secondary by the rotary screw.

Description

Sludge Separation System for Wastewater {screen apparatus which removes sludge from wastewater}

The present invention relates to a sludge separation apparatus of wastewater, and in particular, sewage and sludge can be stably separated even if the concentration of the wastewater is different or the amount of the inflowing wastewater is changed, and the sludge is separated firstly from the wastewater and the sludge is separated again. The present invention relates to a sludge separation apparatus of wastewater, in which a process of separating sewage by pressing once can be performed by one apparatus.

In general, in order to treat manure, sewage, livestock wastewater, etc., firstly, sewage and sludge are separated from the wastewater, and the sewage is purified through biochemical treatment, and the sludge is incinerated or landfilled after being concentrated and dried.

As such, the apparatus for separating wastewater into sewage and sludge has an inlet pipe 730 through which the wastewater flows into the upper portion of the frame, and is connected to the inlet of the hose fixing unit 750, and in the lower center. An outer cylinder 720 having a drainage hole is installed horizontally, and a plurality of water draining holes are formed around the outer circumferential surface of the screen device 710 that is rotated by the power of the motor M inside the outer cylinder 720. 713 is formed, and the screen device 710 in which the screw conveyor 711 for waste discharge is formed is installed at the inner edge thereof.

However, such a device is connected to the hose discharger 750 by the pipe discharged from the waste water collection tank lorry when the waste water is input, when the amount of waste water is increased, excess sewage is discharged through the sludge outlet There is this. In other words, it is not possible to cope with the characteristics and amount of waste water introduced, there is a problem that can not be separated sludge efficiently.

In addition, the device according to the prior art has a configuration in which a circular arc-shaped link is connected to each other as shown in FIG. Are combined to form a screen, and when the screen composed of links rotates, noise and vibration are generated a lot, and durability is lowered, and impurities easily confine between the links and the links, and actively react to the characteristics and flow rate of the incoming wastewater. There is a problem that an additional device for dewatering the sewage contained in the sludge is required because it cannot cope.

Therefore, the present invention was devised to solve the above-mentioned problems, and an object of the present invention is to adapt even if the wastewater of different properties is introduced or the amount of the incoming wastewater is variable, and it is temporarily stored and then repeatedly stored. The present invention provides a screen device that can prevent the overflow of sewage to the part where the sludge is discharged to the maximum, and also separate the sewage by condensing the sludge with a single device.

1 is a perspective view of a screen device according to an embodiment of the present invention.

2 and 3 are partial cross-sectional views of the screen device according to FIG.

4 is a longitudinal sectional view and a cross sectional view of a filtration screen of the screen device according to FIG. 1;

5 is a partially enlarged cross-sectional view.

6 is a partially enlarged cross-sectional view of a rotary knob.

7 is a cross-sectional view for explaining a compression dehydration member.

8A and 8B are cross-sectional and partial enlarged views of a filtration screen according to another embodiment.

9 and 10 are cross-sectional views of the screen device according to the prior art.

Explanation of symbols on the main parts of the drawings

1: screen device, 10: flow control member,

30: filtration screen member, 50: compression dewatering member,

110: flow adjustment tank, 120: storage tank,

130: wastewater inlet, 140: wastewater transport pipe,

310: casing, 320: filtration screen,

323: guide plate 330: cleaning brush,

345: spray nozzle, 510: rotating screw

530: housing, 535: crimp

The above object is achieved by the present invention, according to one aspect of the present invention, in the apparatus for separating the waste water sludge with a screen device for separating the sewage and sludge of the waste water, which is installed in a box form on the screen device A flow rate adjusting member for circulating the incoming wastewater and adjusting the flow rate of the wastewater; Sewage is discharged from the wastewater introduced from the flow rate adjusting member by a cylindrical filtration screen which is connected to the flow rate adjusting member and has a plurality of filtering holes formed on the outer circumferential surface thereof, and the sludge is moved to the primary outlet. Filter screen member for separating the sludge first; And a pressurized dewatering member for separating sewage from the sludge containing water while pressing and moving the sludge introduced from the primary discharge port by the rotation of the rotating screw. The sludge is first separated from the filter screen member. The separated sludge is characterized in that the second press is compressed in the compression dewatering member to separate the sewage and sludge.

In the present invention, the flow rate adjusting member has a waste water inlet in which waste water is introduced from one side of the flow adjusting member, and a storage tank in which a waste water transfer pipe is formed on the other side of the inflow of waste water; A flow rate adjustment tank configured to maintain the waste water at a predetermined height and communicate with the waste water transfer pipe through a lower portion, and mounted inside the storage tank; and a wastewater transfer pump for supplying wastewater overflowed from the flow rate adjustment tank to an upper portion of the flow rate adjustment tank; Characterized in that consists of.

In the present invention, the filtration screen member is a box-shaped casing in which the hollow portion is formed; and the inside of the casing is rotated by a motor, the outer circumferential surface has a cylindrical shape formed with a plurality of filtration holes, one side the waste water is Waste water is introduced from the pipe, and the other side is formed with a primary discharge port for discharging the sludge, the inner surface is formed with a plurality of guide plate for transporting the sludge; and the filter screen is seated on the filter screen, Characterized in that consisting of; cleaning brush for removing impurities inserted into the filter hole according to the rotation.

And, the cleaning brush is in close contact with the outer circumferential surface of the filter screen by the elastic force of the spring, the elastic force of the spring is adjusted by the rotation of the rotary knob mounted to the casing, the inner side of the casing located on the upper side of the cleaning brush The spray pipe is provided with a plurality of spray nozzles for spraying the washing water; is further equipped to wash the surface of the cleaning brush and the filter screen with the washing water sprayed from the spray nozzle.

In addition, a pair of arc-shaped long holes are formed on the side of the filtration screen connected to the wastewater conveying pipe, so that the wastewater accommodated in the filtration screen is overflowed, and the wastewater that is overflowed to the reservoir is moved. It is characterized by.

In the present invention, the casing is further provided with a transparent viewing window that can check the state of the inside.

According to another aspect of the present invention, the filtering screen is a cylindrical shape having a plurality of filtration holes on the outer circumferential surface and a guide screen is mounted therein; and a partial ring shape on one side of the cylindrical screen 320a It is characterized in that the link 329 of the spirally connected shape, the link screen 320b for filthy water flows down into the gap between the link 329 and the link 329 is connected.

One side of the cylindrical screen is connected to the circular link of the circular link to form a cylindrical screen; consisting of, the end of the waste water transport pipe is mounted to the T-shaped branch branched in the "T" shape, and transferred to the waste water transport pipe Waste water is discharged to both ends of the T-tube.

According to another aspect of the present invention, the compression dewatering member is in communication with the primary outlet, the cylindrical housing is formed a number of dehydration holes that can fall sewage in the lower portion; and the front of the housing at an angle to the inside Funnel-shaped crimp tube inclined to; And a rotating screw seated on the housing to transfer the sludge supplied from the primary outlet to the front, wherein the sludge conveyed by the rotating screw is compressed at a predetermined pressure by the pressing tube.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals will be used for the same parts throughout the drawings.

1 is an overall perspective view of a sludge separation apparatus of wastewater according to an embodiment of the present invention, Figure 2 is a partial cut cross-sectional view.

As shown in the figure, the screen device according to the present invention shown by the reference numeral 1 is composed of a flow rate adjusting member 10, the filter screen member 30 and the compression dewatering member (50).

The flow rate adjusting member 10 has a box-shaped storage tank 120 in which a wastewater inlet 130 through which wastewater is introduced from the outside is formed at one side, and a wastewater transfer pipe 140 through which the wastewater is introduced is formed at the other side. And the flow rate of the wastewater transferred to the wastewater conveying pipe 140 by the flow adjusting tank 110 mounted on the inside of the reservoir 120 is overflowed and opened.

The filtration screen member 30 is sewage from the wastewater introduced from the flow rate adjusting member 10 by a cylindrical filtration screen 320 having a plurality of filtration holes 321 on the outer circumferential surface through the filtration holes 321. The sludge is moved to the primary outlet 380 to separate the sewage and the sludge first.

In addition, the pressurized dewatering member 50 separates the sewage from the sludge containing moisture while pressing and moving the sludge introduced from the primary outlet 380 by the rotation of the rotating screw 510.

As shown in FIG. 2, the flow rate adjusting member 10 is provided with a box-shaped reservoir 110. In the inner space of the storage tank 120, a flow adjusting tank 110 having an open top is mounted. In the open upper portion of the flow adjusting tank 110, the waste water flowing from the waste water inlet 130 flows down, and the waste water has a lower portion. The pipe 140 is in communication with each other to move the introduced wastewater to the filtration screen member 30. When the amount of wastewater supplied to the flow rate adjusting tank 110 is excessive, excess wastewater flows down to the lower portion of the storage tank 120 through the bypass pipe 170 and thus, the wastewater accumulated therein is a wastewater transfer pump 150. By the re-supply to the flow rate adjustment tank 110. Therefore, the wastewater transfer pipe 140 connected to the flow rate adjusting tank 110 is always supplied with a flow rate of less than a certain level. That is, the water pressure of the wastewater conveyed to the wastewater conveying pipe 140 is adjusted to be below a predetermined pressure by the flow rate adjusting tank 110, and the wastewater excessively supplied from the wastewater inlet 130 is temporarily supplied to the storage tank 120. Stored and then repeatedly supplied to the upper portion of the flow rate adjustment tank 110 by the waste water transfer pump 150. In addition, the flow rate of the wastewater conveyed to the wastewater conveying pipe 140 may be intermittent by the throttle valve 160, and when the wastewater is excessively supplied from the reservoir 120, the sludge settled downward. Except wastewater located in the upper portion is to be discharged through the wastewater discharge port (410).

As such, the wastewater transported below a predetermined flow rate is supplied into the filtration screen 320 of the filtration screen member 30 through the wastewater transport pipe 140 to be separated into sewage and sludge. Wastewater used in the present invention means sewage, livestock wastewater, manure, etc., such wastewater is divided into sludge and liquid sewage. The separated sewage is biochemically treated and the sludge is dried and incinerated or otherwise treated.

The filtering screen member 30 is provided with a casing 310 having a box shape in which a hollow part is formed, and the filtering screen 320 rotated by a motor is mounted in the casing 310. The filtration screen 320 is cylindrical as shown in FIG. 4, and a plurality of filtration holes 321 are formed and a plurality of guide plates 323 are mounted on an inner surface thereof. And through the plurality of filtration holes 321 formed in the filtration screen 320, the sewage free fall in the downward direction, sludge that does not pass through the filtration hole 321 remains in the interior of the filtration screen 320 Done. The remaining sludge is transported forward by the guide plate 323 as the filter screen 320 rotates. Naturally, the guide plate 323 for transporting sludge should be formed to be inclined with the central axis of the filter screen 320. In addition, the sewage falling to the lower is discharged to the outside through the sewage discharge pipe 410.

As time passes, the filter hole 321 is blocked by impurities, and since the sewage cannot pass through the blocked filter hole 321, the filter hole 321 should be periodically cleaned. This cleaning process can be observed by a pair of transparent viewing window 370 provided in the casing 310, it is preferable that the viewing window 370 can be opened and closed by a hinge.

The cleaning brush 330 is mounted on the filter screen 320 so that the cleaning brush 330 washes the entire outer circumferential surface of the filter screen 320 as the filter screen 320 rotates. In addition, the cleaning brush 330 is connected to the rotary handle 350 mounted on the outer surface of the casing 310, the user to move the cleaning brush 330 up and down by the rotation of the rotary handle 350 It is possible to adjust, it is also possible to impart a constant elastic force to the cleaning brush 330 by the embedded spring 355.

And the injection pipe 340 is mounted on the upper portion of the filter screen 320, a plurality of injection nozzles 345 spaced at a predetermined interval is formed on the lower side of the injection pipe 340 is the injection pipe 340 The filter screen 320 is washed by spraying the water supplied downward. The water supplied to the injection pipe 340 may also be interrupted by the shutoff valve 161.

A T-shaped tube 360 is mounted at an end portion of the waste water transfer pipe 140 for supplying wastewater to the filtration screen 320. The T-shaped tube 360 provides wastewater supplied to the filtration screen 320 through a branch pipe. It will serve to ensure a stable supply.

An arc-shaped long hole 325 is formed in a pair at a side surface of the filtration screen 320 connected to the wastewater transport pipe 140. The waste water accommodated in the filtering screen 320 is overflowed through the long hole 325. As the filtering screen 320 rotates, the long hole 325 is also rotated, so that the long hole 325 ) Keeps the circular arc shape rather than the straight shape. In addition, the wastewater overflowed in the long hole 325 is moved to the reservoir 120 (see FIGS. 7 and 2).

The sludge filtered first in the filtration screen member 30 is dewatered secondarily by being compressed in the compression dewatering member 50, and the compression dewatering member 50 is in communication with the primary outlet 380, The cylindrical housing 530 is provided with a plurality of dehydration holes 531 that can fall sewage, the front of the housing 530 is a funnel-shaped crimping cylinder 535 inclined at an angle to the inside It is formed integrally.

In addition, the housing 530 is mounted with a rotating screw 510 rotated by a motor to transfer the sludge supplied from the primary outlet 380 to the front. Sludge to be conveyed is compressed in the pressing cylinder 535 is reduced in cross-sectional area remaining sewage is lowered through the dehydration hole 531, the falling sewage is discharged to the outside through the sewage outlet 410 do.

In another embodiment of the present invention, the filtration screen may be formed as shown in FIGS. 8a and 8b. That is, a cylindrical screen 320a having the filtration hole 321 and the guide plate 323 is formed at one side, and a link ring 329 having a partial ring shape is spirally formed by the link shaft 326 at the other side. A link screen 320b having a cylindrical shape connected to and connected with the link 329 and the link 329 to which sewage flows downward is formed. Therefore, in the cylindrical screen 320a, filthy water is discharged downward by the filtration hole 321, and the sludge is moved by the guide plate 323, and in the link screen 320b, the link 329 and the link ( Sewage falls by the space between the 329, and the sludge is moved forward by the link 329 connected in a spiral shape.

According to the above configuration, even if the waste water of different properties is introduced or the amount of waste water introduced is variable, the flow rate can be distributed by the flow adjusting tank so that the waste water flowing excessively to the filtration screen can be adjusted. In addition, the sludge can be effectively separated, and the filtration screen can be washed by the water sprayed by the cleaning brush and the spray pipe, and the sludge is dehydrated by the rotary screw to dehydrate the sludge to dehydrate the sludge. You can do it.

What has been described above is just one embodiment for implementing the sludge separation apparatus of wastewater according to the present invention, and is not limited to the above-described embodiment of the present invention, as claimed in the claims of the utility model registration below Without departing from the gist of the present invention, any person having ordinary knowledge in the field to which the present invention belongs will have a technical idea of the present invention to the extent that various modifications can be made.

Claims (13)

A device for separating wastewater sludge with a screen device for separating wastewater sewage and sludge, A flow rate adjusting member which is installed in a box shape on the screen device and circulates the incoming wastewater and regulates the flow rate of the wastewater; Sewage is discharged from the wastewater introduced from the flow rate adjusting member by a cylindrical filtration screen 320 having a plurality of filtration holes 321 formed on an outer circumferential surface thereof, through the filtration holes 321. Sludge is moved to the primary outlet 380, the filtering screen member for primary separation of sewage and sludge; And Compression dewatering member for separating sewage from the sludge containing water while moving the sludge flowing from the primary discharge port 380 by the rotation of the rotating screw 510; The sludge separation apparatus of the wastewater, characterized in that the sludge is separated and the separated sludge is secondarily compressed by the pressurized dewatering member to separate the sewage and the sludge. According to claim 1, wherein the flow rate adjustment member is a storage tank 120 is formed on one side wastewater inlet 130 for introducing wastewater from the outside, the other side is formed wastewater transfer pipe 140 for moving the introduced wastewater; An upper portion is opened to maintain the wastewater introduced from the wastewater inlet 130 at a predetermined height and communicate with the wastewater transfer pipe 140 through the lower portion, and a flow rate adjustment tank 110 mounted inside the reservoir 120; and Sludge separation apparatus of the wastewater, characterized in that consisting of; waste water transfer pump 150 for supplying the waste water overflowed by the flow adjustment tank 110 to the upper portion of the flow adjustment tank (110). The filter screen member of claim 1, wherein the filtering screen member is a box-shaped casing 310 in which a hollow part is formed; and is mounted inside the casing 310 and rotated by a motor, and a plurality of filtering holes 321 are formed on an outer circumferential surface thereof. ) Is formed in a cylindrical shape, one side of the waste water is introduced from the waste water transfer pipe 150, the other side is formed with a primary discharge port 380 for discharging the sludge, the inner surface of the plurality of guide plate 323 for transporting the sludge ) Is formed on the filter screen 320; and the cleaning screen 320, the cleaning brush 330 for removing impurities inserted into the filter hole 321 according to the rotation of the filter screen 320. Sludge separation apparatus of wastewater, characterized in that consisting of. According to claim 3, The cleaning brush 330 is in close contact with the outer circumferential surface of the filter screen 320 by the elastic force of the spring 355, the elastic force of the spring 355 is rotated mounted to the casing 310 Sludge separator of the waste water, characterized in that adjusted by the rotation of the handle (350). The spray pipe 340 of claim 3 or 4, further comprising: a plurality of spray nozzles 345 for spraying the washing water into the casing 310 located above the cleaning brush 330; Sludge separation apparatus of the waste water, characterized in that for cleaning the surface of the cleaning brush 330 and the filter screen 320 with the washing water sprayed from the injection nozzle (345). According to claim 3, wherein the side of the filtration screen 320 is connected to the waste water transfer pipe 140 is formed in the arc-shaped long hole 325, the waste water accommodated in the filtration screen 320 is overflowed (over) Sludge separation device for waste water, characterized in that flow). The sludge separation apparatus of wastewater according to claim 6, wherein the long hole 325 of the filtration screen 320 is formed in a pair. According to claim 6 or 7, wherein the waste water is overflowed in the long hole of the filter screen 320, the sludge separation apparatus of the waste water, characterized in that moved to the reservoir (120). According to claim 3, The casing 310, sludge separation apparatus for waste water, characterized in that further provided with a transparent see-through window 370 that can check the state of the interior. According to claim 3, The filtration screen 320 is a cylindrical shape having a plurality of filtration holes 321 formed on the outer circumferential surface and the cylindrical screen 320a is equipped with a guide plate 323 therein; and of the cylindrical screen 320a On one side, a ring-shaped link 329 is a cylindrical shape spirally connected by the link shaft 326, and a link in which the sewage flows downward into a gap between the link 329 and the link 329 connected thereto. Sludge separation apparatus of the wastewater, characterized in that consisting of; screen (320b). According to claim 2, End of the waste water pipe 140 is mounted to the T-shaped tube 360 is branched in the "T" shape, the waste water transferred to the waste water pipe 140, both ends of the T-pipe 360 Sludge separation device of the wastewater, characterized in that ejected to. The cylindrical housing 530 of claim 1, wherein the crimp dewatering member communicates with the primary outlet 380, and a plurality of dewatering holes 531 are formed in the lower portion to allow sewage to fall. A front of the 530 is a funnel-shaped pressing cylinder 535 inclined at an angle to the inside; And a rotating screw 510 seated on the housing 530 to transfer the sludge supplied from the primary outlet 380 to the front. The sludge conveyed by the rotating screw 510 is configured to be compressed in the pressing tube ( Sludge separation apparatus for waste water, characterized in that the compression by a certain pressure by 535). delete