Continuous separating and discharge apparatus of floated sludge and sedimentation sludge with guide wall preventing filter contact

Abstract

The continuous separation and discharge device for floating sludge and settled sludge equipped with a filter mesh contact blocking guide wall according to the present invention comprises: a main body (10) having a cylindrical shape in which a treatment space (11) containing treated water including floating sludge and settled sludge is formed, wherein the upper part is formed with an expanded portion (12) that is enlarged compared to the middle part, and a frame penetration hole (17) is formed in a circular shape on the upper surface; a treated water supply trap (30) connected to a treated water supply pipe (40) that supplies treated water into the main body (10), installed vertically in the center of the main body (10), and inducing the treated water to flow into the treatment space (11) while inducing a 'U'-shaped flow; and a sludge collector (50) connected to a floating sludge discharge pipe (51) with one side extending to the outside of the main body (10), positioned at the upper center of the treatment space (11), and installed facing upward so that the floating sludge is collected and discharged to the outside. A filter net (60) having a lower portion connected to the lower portion of the expansion portion (12) and an upper portion extended to the upper portion of the main body (10) and installed to surround the sludge collector (50), thereby dividing the interior of the expansion portion (12) into an outer treated water discharge space (12a) and a floating sludge discharge space (12b), and filtering floating sludge in the treated water that has reached the interior of the expansion portion (12); a filter net cleaning device (70) including a cleaning nozzle (75) connected to a cleaning water supply pipe (75a) to receive cleaning water from the cleaning water supply pipe (75a) and spray cleaning water toward the filter net (60); and a treated water discharge pipe (80) having one side connected to the lower portion of the expansion portion (12) so that floating sludge is discharged within the treatment space (12) and treated water filtered by the filter net (60) is discharged. A sedimentation sludge discharge pipe (90) connected to the lower part of the main body (10) and configured such that a sedimentation sludge suction pump (91) is connected to the pipe so that the sedimentation sludge settled in the lower part is discharged;It comprises a blocking guide wall (120) which is connected to the lower part of the above-mentioned extension part (12) and whose upper part is formed to slope upward toward the center of the floating sludge discharge space (12b), thereby guiding the floating sludge in the treatment water rising from the lower part of the treatment space (11) toward the central sludge collector (50) to block contact with the filter mesh.; According to the present invention, the inflow of treated water is made from the side of the middle of the main body so as not to create an obstacle in the center of the upper space of the main body, and the sludge collector is positioned alone in the center of the main body to form a sufficient gap between the sludge collector and the filter net. In addition, a blocking guide wall inclined upward toward the center is formed on the upper side of the main body so as to guide the treated water rising from the lower part of the treatment space toward the central sludge collector, thereby blocking contact between the floating sludge and the filter net, and minimizing the phenomenon of the floating sludge sticking to the filter net, thereby extending the cleaning cycle of the filter net.

Description

Technology Field

[0001] The present invention relates to a continuous separation and discharge device for floating sludge and settled sludge equipped with a filter mesh contact blocking guide wall and an auxiliary discharge pipe, configured to continuously separate and discharge floating sludge and settled sludge in various influent sewage and wastewater, and to prevent the floating sludge from coming into contact with the filter mesh to suppress rapid clogging of the filter mesh. Background Technology

[0003] Sewage and wastewater contain a diverse range of substances with differing physicochemical properties, including various organic components, ionic substances, and inorganic substances in salt form. Consequently, there are significant challenges in ensuring stable treated water quality. To address this, sewage and wastewater treatment facilities have become large-scale, requiring extensive treatment areas and incurring high costs, leading to serious economic feasibility issues.

[0004] Under these conditions, technologies for removing suspended solids during sewage and wastewater treatment have been developed; however, with the exception of efforts to remove decomposable and non-decomposable substances at each stage of water treatment and the development of membrane technology, few technologies are being effectively utilized industrially.

[0005] Recently, as the severity of these problems in sewage and wastewater treatment has been recognized, in-depth research is being conducted; however, technology development capable of simultaneously satisfying treatment efficiency and capacity at a low cost has not yet been achieved.

[0006] A technology currently under development is the large-scale Direct Air Flotation (DAF); while this technology is effective for solid-liquid separation, it is known to require a large surface area and have some issues regarding treatment efficiency.

[0007] Another technology involves filtration using large fiber membranes (cloth media). While it offers excellent removal efficiency primarily for particulate matter during the initial stages of operation, significant problems arise in its use as the fibers gradually become clogged and metabolic products are secreted by microorganisms.

[0008] As a technology to resolve these problems, "Wastewater treatment device and treatment method using a solid-liquid separation device" (Korean Registered Patent Publication No. 10-2058956, Patent Document 1) has been disclosed.

[0009] The above patent document 1 is equipped with a collision plate and a rotation guide to effectively mix the incoming raw water and chemicals, thereby increasing mixing efficiency and operating costs, and is equipped with multiple sludge guides and spray nozzles to facilitate the collection and discharge of the scum layer.

[0010] Patent Document 1 describes a discharge pump for discharging floating sludge on the outer circumference of an inner tube where the chemical and raw water are mixed. Since the space between the inner tube and the outer tube forms a donut-shaped space, the discharge pump is divided into several radial units centered on the inner tube.

[0011] In addition, due to the donut-shaped space, guide walls are provided in the space between the discharge pumps.

[0012] This structure has a problem in that the narrow gap between the discharge pump and the filter mesh of the receiving tank causes scum to adhere to the mesh rapidly, resulting in a shortened cleaning cycle for the mesh.

[0013] In addition, the treated water rising from inside the tank is filtered to remove impurities through a filtration mesh on the upper outer edge, and the scum is allowed to reach the water surface, then guided in one direction using a guide section and discharged by being sucked in by a pump.

[0014] However, in the case of Patent Document 1, there is a problem that the equipment becomes complex because multiple guide sections must be provided due to the central circular wall and multiple pumps must be installed for suction and discharge.

[0015] In addition, as foreign substances in the treated water rising within the tank rise, they come into preferential contact with the filter mesh before reaching the water surface and adhere to the filter mesh, which shortens the cleaning cycle of the filter mesh. Furthermore, if they adhere to the filter mesh, they cannot be easily removed even by washing, which ultimately necessitates the separation and replacement or separate cleaning of the filter mesh, inevitably leading to difficulties in maintenance. Prior art literature

[0017] KR 10-2058956 (2019.12.18) The problem to be solved

[0018] The continuous separation and discharge device for floating sludge and settled sludge equipped with a filter net contact blocking guide wall and an auxiliary discharge pipe according to the present invention is intended to resolve the problems arising from the aforementioned conventional technology. It allows the inflow of raw water (treated water to be treated, hereinafter referred to as 'treated water') to occur from the side of the middle of the main body so as not to create an obstacle in the center of the upper space of the main body, and positions a sludge collector alone in the center of the main body to form a sufficient gap between the sludge collector and the filter net. Additionally, a blocking guide wall inclined upward toward the center is formed on the upper side of the main body to guide the treated water rising from the lower part of the treatment space toward the central sludge collector, thereby blocking contact between the floating sludge and the filter net, and minimizing the phenomenon of floating sludge sticking to the filter net, so as to extend the filter net cleaning cycle.

[0019] In addition, an auxiliary guide wall is formed on the upper side of the blocking guide wall to protrude above the water surface higher than the position of the washing nozzle, so that the washing water sprayed by the washing nozzle does not obstruct the suction of floating sludge around the sludge collector, and only the treated water from which floating sludge has been separated moves toward the treated water discharge space, thereby enabling smooth separation and discharge of floating sludge even when the treatment and washing of the treated water are performed simultaneously.

[0020] In addition, the filter screen is installed to be rotatable, aiming to minimize the occurrence of blind spots during cleaning.

[0021] Furthermore, by configuring the filter mesh to be connected to the auxiliary guide wall so that the auxiliary guide wall rotates together, the aim is to fundamentally minimize the phenomenon of foreign substances or floating sludge adhering to the surface of the auxiliary guide wall due to its movement, as well as to the phenomenon of foreign substances or floating sludge adhering to the blocking guide wall adjacent to the auxiliary guide wall. means of solving the problem

[0023] To solve the above-mentioned problem, the continuous separation and discharge device for floating sludge and settled sludge equipped with a filter mesh contact blocking guide wall and an auxiliary discharge pipe according to the present invention comprises: a main body (10) having a cylindrical shape in which a treatment space (11) containing treated water including floating sludge and settled sludge is formed, wherein the upper part is formed with an expanded portion (12) that is enlarged compared to the middle part, and a frame penetration hole (17) is formed in a circular shape on the upper surface; a treated water supply trap (30) which is installed vertically in the center of the main body (10) and has a treated water supply pipe (40) connected to supply treated water into the main body (10), and which causes the treated water to flow into the treatment space (11) while inducing a 'U'-shaped flow; A sludge collector (50) having one side connected to a floating sludge discharge pipe (51) extending to the outside of the main body (10) and positioned at the upper center of the treatment space (11) and installed facing upward so as to collect the floating sludge and discharge it to the outside; a filter net (60) having its lower part connected to the lower part of the expansion part (12) and its upper part extended to the upper part of the main body (10) and installed to surround the sludge collector (50), thereby dividing the interior of the expansion part (12) into an outer treatment water discharge space (12a) and a floating sludge discharge space (12b), and filtering the floating sludge in the treatment water that has reached the interior of the expansion part (12); and a filter net cleaning device (70) including a cleaning nozzle (75) connected to a cleaning water supply pipe (75a) to receive cleaning water from the cleaning water supply pipe (75a) and spray cleaning water toward the filter net (60); A treated water discharge pipe (80) having one side connected to the lower part of the extension part (12) so that floating sludge is discharged within the treatment space (12) and treated water filtered by a filter net (60) is discharged; and a settled sludge discharge pipe (90) connected to the lower part of the main body (10) and having a settled sludge suction pump (91) connected to the pipe so that settled sludge settled at the lower part is discharged;The device is configured to include a blocking guide wall (120) which is connected to the lower part of the extension section (12) and whose upper part is formed to slope upward toward the center of the floating sludge discharge space (12b), thereby guiding the floating sludge in the treatment water rising from the lower part of the treatment space (11) toward the central sludge collector (50) to block contact with the filter mesh; wherein an auxiliary discharge pipe (140) connected to a suction pump (141) is installed at the part where the side wall of the main body (10) meets the blocking guide wall (120), and a transparent window (150) for checking foreign matter inside the point where the blocking guide wall (120) meets the side wall of the main body (10) adjacent to the auxiliary discharge pipe (140) is installed. Effects of the invention

[0025] According to the present invention, the inflow of treated water is made from the side of the middle of the main body so as not to create an obstacle in the center of the upper space of the main body, and the sludge collector is positioned alone in the center of the main body to form a sufficient gap between the sludge collector and the filter net. In addition, a blocking guide wall inclined upward toward the center is formed on the upper side of the main body so as to guide the treated water rising from the lower part of the treatment space toward the central sludge collector, thereby blocking contact between the floating sludge and the filter net, and minimizing the phenomenon of the floating sludge sticking to the filter net, thereby extending the cleaning cycle of the filter net.

[0026] In addition, an auxiliary guide wall is formed on the upper side of the blocking guide wall to protrude above the water surface higher than the position of the washing nozzle, so that the washing water sprayed by the washing nozzle does not obstruct the suction of floating sludge around the sludge collector, and only the treated water from which floating sludge has been separated moves toward the treated water discharge space, thereby enabling smooth separation and discharge of floating sludge even when the treatment and washing of the treated water are performed simultaneously.

[0027] In addition, the filter mesh is installed to be rotatable, which minimizes the occurrence of blind spots during cleaning.

[0028] In addition, since the filter mesh is connected to the auxiliary guide wall and configured to rotate together with it, the phenomenon of foreign substances or floating sludge adhering to the surface of the auxiliary guide wall due to the movement of the auxiliary guide wall, as well as the phenomenon of foreign substances or floating sludge adhering to the blocking guide wall adjacent to the auxiliary guide wall, can be fundamentally minimized. Brief explanation of the drawing

[0030] FIG. 1 is a schematic cross-sectional view showing a continuous separation and discharge device for floating sludge and settled sludge equipped with a filter mesh contact blocking guide wall according to the present invention. FIG. 2 is a partially cutaway perspective view showing the operating state of the treated water flow according to the blocking guide wall in the present invention. FIG. 3 is a partially cut-and-exploded perspective view showing an example in which the filter mesh is configured to rotate in the present invention. FIG. 4 is a partially cutaway perspective view showing the assembled state of FIG. 3. FIG. 5 is a partially cutaway perspective view showing an example in which the auxiliary guide wall is configured to rotate together with the filter mesh in the present invention. Specific details for implementing the invention

[0031] Hereinafter, the continuous separation and discharge device for floating sludge and settled sludge equipped with a filter mesh contact blocking guide wall and an auxiliary discharge pipe according to the present invention will be described in detail with reference to the attached drawings.

[0033] The continuous separation and discharge device for floating sludge and settled sludge according to the present invention is largely composed of a main body (10), a treated water supply trap (30), a sludge collector (50), a filter net (60), a filter net cleaning device (70), a treated water discharge pipe (80), a settled sludge discharge pipe (90), and a blocking guide wall (120), and an auxiliary guide wall (130) may be additionally composed.

[0035] The main body (10), which is a component of the present invention, takes the shape of a cylinder in which a treatment space (11) is formed to accommodate treated water (sewage or wastewater including floating sludge and settled sludge) as shown in FIG. 1.

[0036] As shown in the drawing, the upper part of the processing space (11) is made up of an expanded section (12) that is enlarged compared to the middle section, and the lower part is made up of a tapered section (13) that has a tapered shape in which the inner diameter gradually decreases based on the middle section.

[0037] This main body (10) can be installed inside an external housing not indicated by a drawing symbol.

[0039] As shown in the drawing, the treated water supply trap (30), which is a component of the present invention, is connected to a treated water supply pipe (40) that supplies treated water into the main body (10), is installed vertically in the center of the main body (10), and is configured to induce the treated water to flow into the treatment space (11) while inducing a 'U'-shaped flow.

[0040] Here, the treated water supply pipe (40) is installed by penetrating the side wall of the main body (10) as shown in the illustration, and the end is bent vertically downward toward the center and connected to the upper part of the treated water supply trap (30) so that treated water is supplied.

[0041] This structure can improve the efficiency of treating floating sludge by forming sufficient space on the upper side of the main body (10).

[0043] As shown in the drawing, the sludge collector (50), which is a component of the present invention, is connected to a floating sludge discharge pipe (51) that extends one side to the outside of the main body (10), and is installed facing upward while positioned at the upper center of the processing space (11) so that the floating sludge is collected and discharged to the outside.

[0044] A discharge pump is installed in the floating sludge discharge pipe (51) that extends outward from the main body (10) so that the floating sludge can be sucked in and processed in a separate process.

[0045] In addition, the end of the end is bent upward toward the upper center of the processing space (11) and the sludge collector (50) is connected thereto.

[0046] The sludge collector (50) is formed in a funnel shape so that floating sludge rising to the surface of the treated water inside the main body (10) is discharged through the collection door floating sludge discharge pipe (51).

[0048] As shown in the drawing, the filter net (60), which is a component of the present invention, has its lower part connected to the lower part of the extension part (12), and its upper part extends to the upper part of the main body (10) and is installed to surround the sludge collector (50).

[0049] This filter mesh (60) divides the interior of the expansion section (12) into an outer treated water discharge space (12a) and a floating sludge discharge space (12b), and filters floating sludge and fine foreign substances in the treated water that reaches the interior of the expansion section (12).

[0050] The filter mesh (60) shown in FIGS. 1 and 2 is installed by being fastened to an installation member formed on the lower part of the extension part (12) and the lower part of the upper surface of the main body (10) as shown in the drawings.

[0051] At this time, the installation members are provided with grooves so that the filter mesh (60) is fastened in a snap-fit ​​manner.

[0053] As shown in FIGS. 1 and 2, the filter mesh cleaning device (70), which is a component of the present invention, is configured to include a cleaning nozzle (75) that is connected to a cleaning water supply pipe (75a) and receives cleaning water from the cleaning water supply pipe (75a) to spray cleaning water toward the filter mesh (60).

[0054] As shown in the drawing, the pipe connected to the washing water supply pipe (75a) within the treated water discharge space (12a) is branched horizontally and vertically into multiple sections, and a washing nozzle (75) is connected to each branched section so that washing water can be sprayed evenly onto the filter mesh (60).

[0056] As shown in the illustration, the treated water discharge pipe (80), which is a component of the present invention, has one side connected to the lower part of the extension part (12), more specifically to the lower part of the treated water discharge space (12a), so that floating sludge is discharged within the treatment space (12) and treated water that has been filtered by the filter net (60) is discharged.

[0058] The sedimentation sludge discharge pipe (90), which is a component of the present invention, is connected to the lower part of the main body (10) as illustrated, and a sedimentation sludge suction pump (91) is connected to the pipe so that the sedimentation sludge settled at the lower part is discharged.

[0060] The blocking guide wall (120), which is a component of the present invention, is a major component of the present invention, with its lower part connected to the lower part of the extension part (12), and its upper part formed to slope upward toward the center of the floating sludge discharge space (12b).

[0061] Accordingly, the treatment water rising from the bottom of the treatment space (11) is directed to flow toward the center, so that the floating sludge contained in the treatment water is guided toward the central sludge collector (50) to block contact with the filter net (60).

[0062] By suppressing contact between the filter net (60) and floating sludge, the cleaning cycle of the filter net (60) is extended, and the replacement cycle of the filter net (60) is also extended.

[0064] In the above configuration, an auxiliary guide wall (130) may be further provided on the upper part of the blocking guide wall (120).

[0065] As shown in the drawing, the auxiliary guide wall (130) is formed such that its upper part is cylindrical and protrudes vertically above the water surface higher than the position of the washing nozzle (75).

[0066] Accordingly, the washing water sprayed by the washing nozzle (75) hits the upper part of the auxiliary guide wall (130) and cannot move toward the sludge collector (50), so the suction of floating sludge in the sludge collector (50) is not prevented.

[0067] Therefore, the cleaning of the filter net (60) does not prevent the treatment of the treated water, so the treatment of the treated water and the cleaning of the filter net (60) can be performed simultaneously.

[0068] This allows the washing water supply pipe (75a) to be connected to the treated water discharge pipe (80) and an opening / closing valve to be installed so that the treated water is supplied to the washing water supply pipe (75a) according to the control of the opening / closing valve, thereby enabling the washing of the filter net (60) without the need to provide a separate water tank or water source.

[0069] Meanwhile, the lower part of the auxiliary guide wall (130) may be composed of an inclined section (132) that is spaced apart from the blocking guide wall (120) at a certain distance and forms a guide channel (131) between it and the blocking guide wall (120).

[0070] When such an inclined section (132) is formed, the treated water that travels along the blocking guide wall (120) toward the upper center of the main body (10) separates and discharges floating sludge by the suction pressure acting on the sludge collector (50), and the treated water naturally travels along the guide channel (131) by gravity toward the outer side, i.e., the treated water discharge space (12a), then passes through the filter net (60) and is discharged to the outside through the treated water discharge pipe (80).

[0072] In the above configuration, a filter mesh rotation device (100) that rotates the filter mesh (60) horizontally with respect to the center of the main body (10) may be provided.

[0073] These examples are specifically illustrated in Figures 3 and 4.

[0074] Looking at the drawing, a cover installation hole (14) is formed in the center of the upper surface of the extension part (12), and a lower support member (16) with a groove formed on the upper side is installed on the lower inner surface of the extension part (12), and a cover (15) that blocks the cover installation hole (14) is provided.

[0075] In addition, a cover support frame (18) is provided, the lower part of which is fitted into the groove of the lower support member (16) and which surrounds the filter mesh (60).

[0076] Additionally, an upper support member (15a) having a groove formed at its bottom so that the upper part of the cover support frame (18) can be fitted is formed at the bottom of the cover (15).

[0077] Additionally, a filter net support frame (61) is formed, with both ends connecting the upper circumference of the filter net (60) and the center connecting to the lower part of the cover (15), and the filter net rotation device (100) is composed of a motor, the main body of which is installed at the lower part of the cover (15) and the motor shaft of which is connected to the filter net support frame (61).

[0078] This filter mesh rotation device (100) may be configured to continuously rotate the filter mesh (60) in one direction, or it may be configured to rotate it in both directions.

[0079] When the filter screen (60) is rotated, the occurrence of blind spots in the washing water sprayed through the washing nozzle (75) can be minimized, thereby increasing washing efficiency.

[0081] In addition, when reciprocating in both directions, the function of shaking the filter mesh (60) is activated, making it easier to remove foreign substances attached to the filter mesh (60) when supplying washing water.

[0083] In the above configuration, as shown in FIG. 5, an auxiliary frame (62) extending from the upper to the lower part of the filter mesh (60) is installed on the filter mesh (60), and a connecting frame (63) protruding toward the direction of the floating sludge discharge space (12b) is installed on the auxiliary frame (62), and the connecting frame (63) can be configured to be connected to the auxiliary guide wall (130).

[0084] In this case, the auxiliary guide wall (130) rotates together with the operation of the filter mesh rotation device (100).

[0085] When the auxiliary guide wall (130) is rotated, fine foreign substances in the treated water that flow into the guide channel (131) along the blocking guide wall (120) are adsorbed and stuck to the surface of the auxiliary guide wall (130) or the surface of the blocking guide wall (120) facing it, and this phenomenon is accelerated to block the guide channel (131), thereby preventing the treated water from moving toward the treated water discharge space (12a).

[0086] For example, if sediment accumulates in the lower part of the guide channel (131) and the sedimentation accelerates, the guide channel (131) becomes clogged. However, when the auxiliary guide wall (130) rotates during the cleaning operation of the filter net (60), the sediment accumulated in the guide channel (131) is stirred, and the suspended matter among them is collected back towards the center and can be discharged through the sludge collector (50).

[0087] Furthermore, as shown in FIG. 5, an auxiliary discharge pipe (140) connected to a suction pump (141) may be installed at the part where the side wall of the main body (10) meets the blocking guide wall (120).

[0088] In this case, if sedimentation occurs at the point where the side wall of the main body (10) meets the blocking guide wall (120), the sediment may be discharged through the auxiliary discharge pipe (140) via the suction pump (141).

[0089] At this time, a transparent window (150) is installed on the side wall of the main body (10) adjacent to the auxiliary discharge pipe (140) to check for foreign matter inside the point where the blocking guide wall (120) and the side wall of the main body (10) meet, so that the operator can clearly identify when the suction pump (141) needs to be operated.

[0091] According to the above configuration, the present invention allows treated water to flow into the treated water supply trap (30) through the treated water supply pipe (40), pass through the treated water supply trap (30), and flow into the main body (10), thereby separating the settled sludge by settling it first, and gradually rises the water level within the treatment space (11) until it reaches the connection point of the floating sludge discharge pipe (80) of the expansion part (12).

[0092] At this time, the treated water moves toward the center by the guide of the blocking guide wall (120), and the floating sludge contained therein is collected around the sludge collector (50), so that the suction treatment of the floating sludge is carried out smoothly.

[0093] The treated water, from which the floating sludge has been easily separated, naturally moves along the blocking guide wall (120) by gravity to the outer side, passes through the filter net (60), moves to the treated water discharge space (12a), and is then discharged to the outside through the treated water discharge pipe (80).

[0094] Meanwhile, when the sedimentation sludge accumulates at the bottom of the main body (10) above a certain standard, the sedimentation sludge suction pump (91) is operated using a density sensing sensor or the like through a control device not shown to discharge the sludge.

[0095] Floating sludge in the treated water reaches the vicinity of the expansion section (12) near the water surface, and is collected towards the center by the suction force of the water flow generated from the sludge collector (50) by the suction force of the suction pump placed on the pipe of the floating sludge discharge pipe (51), and is discharged through the floating sludge discharge pipe (51).

[0096] At this time, the pump operating to discharge floating sludge may be applied in a continuous operation mode, or a sensor for detecting floating sludge may be installed on the upper part of the sludge collector (50) and operated through the control of a control device based on sensor detection.

[0097] This process takes place in succession.

[0098] Meanwhile, when floating sludge or foreign matter is adsorbed on the filter net (60), the filtration efficiency decreases, so the filter net cleaning device (70) described above is operated by sensing or a time schedule to supply cleaning water through the cleaning nozzle (75) to clean it. At this time, if the aforementioned auxiliary guide wall (130) is provided, the cleaning water does not go toward the sludge collector (50), so that cleaning and treatment of the treated water can be performed simultaneously.

[0099] In addition, as mentioned above, the treated water discharged externally after the treatment is completed can be utilized as washing water.

[0100] In addition, as described above, by causing the auxiliary guide wall (130) to rotate together with the filter net (60), the generation of sediment between the guide channels (131) can be minimized, and the generated sediment can be stirred and discharged to the outside, making it easier to manage the filter net (60). Explanation of the symbols

[0102] 10 : Main body 11 : Processing space 12: Expansion section 12a: Treated water discharge space 12b: Floating sludge discharge space 13: Tapered section 14 : Cover installation hole 15 : Cover 15a : Upper support member 16 : Lower support member 30 : Treated water supply trap 40 : Treated water supply pipe 50 : Sludge collector 51 : Floating sludge discharge pipe 60 : Filter screen 61 : Filter mesh support frame 62 : Auxiliary frame 63 : Connecting member 70 : Filter screen cleaning device 75 : Cleaning nozzle 75a : Wash water supply pipe 80 : Treated water discharge pipe 90 : Sedimentation sludge discharge pipe 91 : Sedimentation sludge suction pump 100 : Filter screen rotation device 120 : Blocking guide wall 130 : Auxiliary guide wall 131 : Guide Euro 132 : Inclined section 140 : Auxiliary discharge pipe 141 : Suction pump 150 : Transparent window

Claims

Claim 1 A main body (10) having a cylindrical shape having a treatment space (11) formed therein for accommodating treated water including floating sludge and settled sludge, wherein the upper part is formed with an expanded portion (12) that is enlarged compared to the middle part, and a frame penetration hole (17) is formed in a circular shape on the upper surface; a treated water supply pipe (40) connected to supply treated water into the main body (10) and a treated water supply trap (30) installed vertically in the center of the main body (10) and causing the treated water to flow into the treatment space (11) while inducing a 'U'-shaped flow; A sludge collector (50) having one side connected to a floating sludge discharge pipe (51) extending to the outside of the main body (10), positioned at the upper center of the treatment space (11) and installed facing upward so as to collect the floating sludge and discharge it to the outside; a filter net (60) having its lower part connected to the lower part of the expansion part (12) and its upper part extended to the upper part of the main body (10) and installed to surround the sludge collector (50), thereby dividing the interior of the expansion part (12) into an outer treatment water discharge space (12a) and a floating sludge discharge space (12b), and filtering the floating sludge in the treatment water that has reached the interior of the expansion part (12); a filter net cleaning device (70) including a cleaning nozzle (75) connected to a cleaning water supply pipe (75a) and configured to receive cleaning water from the cleaning water supply pipe (75a) and spray cleaning water toward the filter net (60); and one side of the A treated water discharge pipe (80) connected to the lower part of the expansion section (12) so that floating sludge is discharged within the treatment space (12) and treated water filtered by a filter net (60) is discharged; and a settled sludge discharge pipe (90) connected to the lower part of the main body (10) and configured so that a settled sludge suction pump (91) is connected to the pipe so that settled sludge settled at the lower part is discharged;A continuous separation and discharge device for floating sludge and settled sludge equipped with a filter net contact blocking guide wall and an auxiliary discharge pipe, comprising: a blocking guide wall (120) which is connected to the lower part of the extension part (12) and whose upper part is formed to be inclined upward toward the center of the floating sludge discharge space (12b), thereby guiding the floating sludge in the treatment water rising from the lower part of the treatment space (11) toward the central sludge collector (50) to block contact with the filter net; wherein an auxiliary discharge pipe (140) connected to a suction pump (141) is installed at the part where the side wall surface of the main body (10) meets the blocking guide wall (120), and a transparent window (150) for checking foreign matter inside the point where the blocking guide wall (120) meets the side wall surface of the main body (10) adjacent to the auxiliary discharge pipe (140) is installed.

Images