Vertical movement and horizontal rotation cleaning appratus for continuous removal of floating and settled sludge

Abstract

To solve the above-mentioned problem, the continuous separation and discharge device for floating sludge and settled sludge equipped with a vertically moving and horizontally rotating washing nozzle 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 installed to surround the sludge collector (50) while extending to the upper portion of the main body (10), 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);The device comprises a plurality of vertical frames (71) whose upper portion protrudes outside the main body (10) and whose lower portion is located in the treated water discharge space (12a) inside the main body (10) through the frame penetration hole (17); a horizontal frame (72) positioned horizontally on the upper portion of the main body (10) with one side connected to the vertical frame (71); a vertical moving device (73) which moves the horizontal frame (72) up and down, with one side connected to the horizontal frame (72) and the other side connected to the upper surface of the main body (10); a horizontal rotating device (74) which rotates the horizontal frame (72) horizontally, with one side connected to the main body (10) and the other side connected to the vertical moving device (73) or the horizontal frame (72); and a washing nozzle (75) which is installed on the vertical frame (71) toward the filter net (60) and connected to a washing water supply pipe (75a) to spray washing water toward the filter net (60). The apparatus comprises: a filter mesh cleaning device (70); a treated water discharge pipe (80) having one side 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 the filter mesh (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 is discharged from the lower part. According to the present invention, a cleaning nozzle located on the outer side of the filter mesh and spraying cleaning water toward the filter mesh is configured to rotate horizontally as well as move vertically, thereby minimizing blind spots in filter mesh cleaning and extending the filter mesh cleaning cycle. Furthermore, the filter mesh is also made capable of horizontal rotation, which further improves the efficiency of filter mesh cleaning. In addition, a rotating cover is provided that rotates along a horizontally rotating frame while fitted onto the upper part of the main body for horizontal rotation, thereby preventing the formation of gaps on the upper part of the main body and minimizing the generation of odors.

Description

Technology Field

[0001] The present invention relates to a continuous separation and discharge device for floating sludge and settled sludge, configured to continuously separate and discharge floating sludge and settled sludge in various influent sewage and wastewater, while enhancing washing efficiency through the vertical movement of a washing nozzle. 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] Furthermore, the fixed position of the cleaning nozzle also causes the problem of creating areas where the filter mesh is not cleaned.

[0014] In Patent Document 1, to resolve these problems, a device capable of moving the cleaning nozzle up and down was provided to minimize the occurrence of blind spots in the cleaning of the filter mesh.

[0015] However, despite this, there is a problem in that blind spots still exist between adjacent cleaning nozzles in the horizontal direction depending on the placement of the cleaning nozzles. 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 vertically moving and horizontally rotating washing nozzle and a filter mesh rotation device according to the present invention is intended to resolve the problems arising from the aforementioned conventional technology. By configuring the washing nozzle, which is located on the outside of the filter mesh and sprays washing water toward the filter mesh, to be capable of not only vertical movement but also horizontal rotation, the blind spot for filter mesh washing is minimized, thereby extending the filter mesh washing cycle.

[0019] In addition, the filter mesh is also made capable of horizontal rotation to further improve the cleaning efficiency of the filter mesh.

[0020] In addition, a rotating cover is provided that rotates along with a horizontally rotating frame while being fitted into the upper part of the main body for horizontal rotation, thereby preventing the formation of a gap in the upper part of the main body and minimizing the generation of odors.

[0021] In addition, the inflow of raw water (water to be treated, hereinafter referred to as '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 mesh, thereby minimizing the phenomenon of floating sludge adhering to the filter mesh. 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 vertically moving and horizontally rotating washing nozzle and a filter mesh rotating device of 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 induces the treated water to flow into the treatment space (11) while inducing a 'U'-shaped flow, and a treated water supply pipe (40) connected to supply treated water into the main body (10); A sludge collector (50) connected to a floating sludge discharge pipe (51) that extends to the outside of the main body (10) on one side, and 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; and a filter net (60) whose lower part is connected to the lower part of the expansion part (12) and whose upper part extends to the upper part of the main body (10) and is installed to surround the sludge collector (50), thereby dividing the interior of the expansion part (12) into an outer treated water discharge space (12a) and a floating sludge discharge space (12b), and filtering the floating sludge in the treated water that has reached the interior of the expansion part (12);The device comprises a plurality of vertical frames (71) whose upper portion protrudes outside the main body (10) and whose lower portion is located in the treated water discharge space (12a) inside the main body (10) through the frame penetration hole (17); a horizontal frame (72) positioned horizontally on the upper portion of the main body (10) with one side connected to the vertical frame (71); a vertical moving device (73) which moves the horizontal frame (72) up and down, with one side connected to the horizontal frame (72) and the other side connected to the upper surface of the main body (10); a horizontal rotating device (74) which rotates the horizontal frame (72) horizontally, with one side connected to the main body (10) and the other side connected to the vertical moving device (73) or the horizontal frame (72); and a washing nozzle (75) which is installed on the vertical frame (71) toward the filter net (60) and connected to a washing water supply pipe (75a) to spray washing water toward the filter net (60). A filter mesh cleaning device (70); a treated water discharge pipe (80) having one side connected to the lower part of the expansion part (12) so that floating sludge is discharged within the treatment space (12) and treated water filtered by the filter mesh (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 is discharged from the lower part;The device is configured to include, wherein a filter net rotation device (100) is provided to rotate the filter net (60) horizontally based on the center of the main body (10); a cover installation hole (14) is formed in the center of the upper surface of the extension part (12); a lower support member (16) with a groove formed on its upper portion is installed on the lower inner surface of the extension part (12); a cover (15) is provided to block the cover installation hole (14); a cover support frame (18) is provided, the lower portion of which is fitted into the groove of the lower support member (16) and which surrounds the filter net (60); an upper support member (15a) with a groove formed on its lower portion so that the upper portion of the cover support frame (18) can be fitted is formed on the lower portion of the cover (15); the outer perimeter of the cover (15) is spaced apart from the inner surface of the cover installation hole (14) to form the frame penetration hole (17); and both ends are the A filter net support frame (61) is formed that connects the upper circumference of the filter net (60) and is connected to the lower part of the cover (15) in the center, and the filter net rotation device (100) is characterized in that its main body is installed at the lower part of the cover (15) and it is composed of a motor whose motor shaft is connected to the filter net support frame (61).

[0024] In the above configuration, an inclined guide wall (120) is installed that is connected to the lower part of the extension part (12) and is inclined upward toward the center of the floating sludge discharge space (12b), so that the treated water rising from the lower part of the treatment space (11) is guided toward the sludge collector (50) by the guide of the inclined guide wall (120).

[0025] In the above configuration, the filter mesh (60) is provided with an auxiliary frame (62) extending from the upper part to the lower part of the filter mesh (60), and the auxiliary frame (62) is provided with a connecting frame (63) protruding toward the direction of the floating sludge discharge space (12b). The auxiliary guide wall (130) is connected to the connecting frame (63), and has its upper part formed vertically in a cylindrical shape and its lower part formed inclinedly while being spaced apart from the inclined guide wall (120), so that a guide channel (131) is formed between it and the inclined guide wall (120). The cleaning water sprayed by the cleaning nozzle (75) rotates together with the rotation of the filter mesh (60) and is guided so that only the treated water from which the floating sludge has been separated moves toward the treated water discharge space (12a) without hindering the suction of floating sludge around the sludge collector (50). Effects of the invention

[0027] According to the present invention, by configuring a cleaning nozzle located on the outer side of the filter mesh and spraying cleaning water toward the filter mesh to be capable of vertical movement as well as horizontal rotation, the blind spot for cleaning the filter mesh is minimized, thereby extending the cleaning cycle of the filter mesh.

[0028] In addition, the filter mesh can be made to rotate horizontally, thereby further improving the cleaning efficiency of the filter mesh.

[0029] In addition, a rotating cover is provided that rotates along with a horizontally rotating frame while fitted onto the upper part of the main body for horizontal rotation, thereby preventing the formation of gaps on the upper part of the main body and minimizing the generation of odors.

[0030] In addition, the inflow of raw water (water to be treated, hereinafter referred to as 'treated water') is made 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 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 mesh, thereby minimizing the phenomenon of floating sludge adhering to the filter mesh. Brief explanation of the drawing

[0032] FIG. 1 is a schematic cross-sectional view showing a continuous separation and discharge device for floating sludge and settled sludge equipped with a washing nozzle that moves vertically and rotates horizontally according to the present invention. FIG. 2 is a partially cutaway perspective view showing the operating state in which the cleaning nozzle moves up and down in the present invention. FIG. 3 is a partially cutaway perspective view showing the operating state in which the washing nozzle rotates left and right in the present invention. FIG. 4 is a partially cut-and-exploded perspective view showing an example of a filter mesh installation structure in the present invention. FIG. 5 is a partially cut-off perspective view showing the combined state of FIG. 4. FIG. 6 is a partially cut-and-exploded perspective view showing an example of an odor-preventing member provided in the present invention. Specific details for implementing the invention

[0033] Hereinafter, the continuous separation and discharge device for floating sludge and settled sludge, equipped with a vertically moving and horizontally rotating washing nozzle and a filter mesh rotation device according to the present invention, will be described in detail with reference to the attached drawings.

[0035] 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), and a settled sludge discharge pipe (90).

[0037] 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.

[0038] 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.

[0039] This main body (10) can be installed inside an external housing not indicated by a drawing symbol.

[0040] As shown in the drawing, the upper part of the main body (10) has a circular frame through hole (17) formed so that it can rotate horizontally while a vertical frame (71) to which a cleaning nozzle (75) is connected is fitted.

[0042] 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.

[0043] 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.

[0044] This structure can improve the efficiency of treating floating sludge by forming sufficient space on the upper side of the main body (10).

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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).

[0051] 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).

[0052] 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).

[0053] The filter mesh (60) illustrated in FIGS. 1 to 3 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.

[0054] At this time, the installation members are provided with grooves so that the filter mesh (60) is fastened in a snap-fit ​​manner.

[0056] The filter mesh cleaning device (70), which is a component of the present invention, is composed of a vertical frame (71), a horizontal frame (72), a vertical moving device (73), a horizontal rotating device (74), and a cleaning nozzle (75) as major components of the present invention.

[0057] The vertical frame (71) is a component for mounting a cleaning nozzle (75), and its lower portion is located in the treated water discharge space (12a) inside the main body (10) through the frame penetration hole (17).

[0058] In addition, the upper part is vertically protruding outward from the main body (10) through a frame penetration hole (17) so that vertical movement is possible, and is composed of multiple parts.

[0059] As illustrated, the horizontal frame (72) is positioned horizontally on the upper part of the main body (10), which is connected to the vertical frames (71), as a means for connecting to the vertical moving device (73).

[0060] One side of the vertical movement device (73) is connected to the horizontal frame (72) and the other side is connected to the upper surface of the main body (10), and is configured to move the horizontal frame (72) up and down.

[0061] For ease of understanding, the vertical movement device (73) is depicted as a hydraulic actuator in the drawing, and the actuator body is connected to the upper surface of the main body (10), and the actuator rod is connected to the horizontal frame (72).

[0062] Accordingly, the horizontal frame (72) moves up and down by the vertical movement of the rod, and the vertical frame (71) and the cleaning nozzle (75) can move accordingly.

[0063] One side of the horizontal rotation device (74) is connected to the main body (10), while the other side is connected to the vertical movement device (73) or the horizontal frame (72) to rotate the horizontal frame (72) horizontally.

[0064] In the attached drawing, for ease of understanding, a configuration is shown in which a cylindrical gear is arranged on the outer circumference of the main body of the actuator, another cylindrical gear that rotates by meshing with the cylindrical gear is provided, and a motor that drives the cylindrical gear is installed in the main body.

[0065] That is, as the two cylindrical gears mesh and rotate by motor drive, the actuator rotates horizontally, allowing the horizontal frame (72) to rotate horizontally.

[0066] The washing nozzle (75) is installed on the vertical frame (71) toward the filter net (60) and is connected to the washing water supply pipe (75a) to spray washing water toward the filter net (60).

[0067] At this time, the cleaning nozzle (75) may be installed directly on the vertical frame (71) individually, or it may be installed on a circular auxiliary supply pipe (76) connected to the vertical frames (71) as shown in FIG. 2.

[0068] In the latter case, the cleaning nozzles (75) are arranged in a number that wrap horizontally around the perimeter of the filter mesh (60), making more efficient cleaning possible.

[0069] In addition, the washing water supply pipe (75a) that supplies washing water to the washing nozzle (75) is naturally configured such that the end of the pipe is made of a flexible pipe, like a flexible pipe, so that it can be stably connected to the washing nozzle (75) with respect to the movement and rotation of the vertical frame (71).

[0070] The horizontal rotation device (74) may be configured to rotate continuously in one direction, but in this case, a connecting member must be installed so that washing water can be smoothly supplied from the washing water supply pipe (75a) to the washing nozzle (75) even when continuous rotation occurs.

[0071] However, since the purpose of installing the horizontal rotation device (74) is to minimize the blind spot of the filter screen (60) that is cleaned by the cleaning nozzle (75), it is efficient to configure the motor constituting the horizontal rotation device (74) to be a bidirectional rotation motor and to repeatedly reciprocate in both directions over a predetermined section.

[0073] 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.

[0075] 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.

[0077] 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.

[0078] These examples are specifically illustrated in Figures 4 and 5.

[0079] 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.

[0080] 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).

[0082] An upper support member (15a) having a groove formed at its bottom so that the upper part of the above cover support frame (18) can be fitted is formed at the bottom of the cover (15).

[0083] In addition, the outer perimeter of the cover (15) is spaced apart from the inner surface of the cover installation hole (14) to form the frame penetration hole (17).

[0084] 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).

[0085] This filter mesh rotation device (100) may be configured to rotate the filter mesh (60) continuously in one direction or in both directions, but it is preferable to configure it to rotate it repeatedly in both directions.

[0086] In this case, the function of shaking the filter mesh (60) is activated, making it easier to remove foreign substances attached to the filter mesh (60).

[0089] *In the above configuration, as shown in FIG. 5, an odor-preventing member (110) may be further installed to prevent odors from leaking out through the frame penetration hole (17).

[0090] The odor prevention member (110) includes a fitting coupling part (111) which has a lower portion that protrudes vertically and is fitted into the frame penetration hole (17), and is configured to rotate around the center of the main body (10) by being pushed by the vertical frame (71) when the vertical frame (71) rotates. It is also configured with a cover part (112) that is connected to the upper portion of the fitting coupling part (111), extends horizontally to cover the frame penetration hole (17), and takes the shape of a semicircle on a flat surface.

[0091] At this time, it is preferable that the bottom part of the cover (112) be coated or treated with an adsorbent that adsorbs odors, such as activated carbon.

[0092] This is because, in order for the above-mentioned fitting part (111) to move while being pushed by the vertical frame (71) and inserted into the frame penetration hole (17), the fitting part (111) is inserted with a gap rather than being firmly connected to the frame penetration hole (17), so odors can leak out through this gap.

[0093] Of course, although a cover portion (112) is provided on top of it, since the cover portion (112) is also difficult to completely adhere to the upper surface of the main body (10), it is preferable that an adsorbent be coated on the lower part of the cover portion (112).

[0095] In the above configuration, as shown in FIG. 6, an inclined guide wall (120) connected to the lower portion adjacent to the extension portion (12) may be further provided.

[0096] The above-mentioned inclined guide wall (120) is connected to the lower part of the extension (12) as illustrated, and its upper part is installed to slope upward toward the center of the floating sludge discharge space (12b).

[0097] Accordingly, the treated water rising from the bottom of the installed treatment space (11) is guided toward the sludge collector (50) by the guide of the inclined guide wall (120), so that the floating sludge can be collected and discharged by the sludge collector (50) smoothly.

[0098] Furthermore, as described above, an auxiliary frame (62) extending from the upper to the lower part of the filter net (60) is installed on the filter net (60), and a connecting frame (63) protruding toward the direction of the floating sludge discharge space (12b) is installed on the auxiliary frame (62). An auxiliary guide wall (130) may also be provided, which is connected to the connecting frame (63), has its upper part formed vertically in a cylindrical shape, and its lower part formed inclinedly while being spaced apart from the inclined guide wall (120), so that a guide channel (131) is formed between it and the inclined guide wall (120).

[0099] In this case, the auxiliary guide wall (130) can guide the washing water sprayed by the washing nozzle (75) to move only the treated water from which the floating sludge has been separated to the treated water discharge space (12a) without hindering the suction of floating sludge around the sludge collector (50).

[0100] In particular, since the auxiliary guide wall (130) is connected to the filter net (60) and rotates left and right together with the filter net (60), it is possible to prevent sludge and foreign substances from adhering to the surface of the guide wall (120) and the auxiliary guide wall (130) and blocking the flow path.

[0102] 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).

[0103] 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 sedimentation sludge.

[0104] 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).

[0105] 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.

[0106] This process takes place in succession.

[0107] 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 time schedule to supply cleaning water through the cleaning nozzle (75) to clean it. At this time, the vertical moving device (73) and the horizontal rotating device (74) described above are operated together so that cleaning is performed while minimizing the blind spots of the filter net (60).

[0108] In addition, if formed with a structure as shown in FIGS. 4 to 6, not only is it easy to install and replace the filter screen (60), but odors can also be suppressed, the flow of treated water can be effectively induced, and the obstruction of water flow by washing water can be suppressed, so that the treated water can be treated continuously while washing is being performed. Explanation of the symbols

[0110] 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 17 : Frame penetration hole 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 70 : Filter screen cleaning device 71 : Vertical frame 72 : Horizontal frame 73 : Vertical movement device 74 : Horizontal rotation device 75 : Washing nozzle 75a : Wash water supply pipe 76 : Auxiliary supply pipe 80 : Treated water discharge pipe 90 : Sedimentation sludge discharge pipe 91 : Sedimentation sludge suction pump 100 : Filter screen rotation device 110 : Odor prevention member 111 : Insert joint part 112 : Cover part 120 : Inclined guide wall 130 : Auxiliary guide wall 131 : Guide Euro

Claims

Claim 1 A main body (10) having a cylindrical shape having a treatment space (11) formed therein for accommodating treatment water including floating sludge and settled sludge, wherein the upper part is formed with an expanded section (12) that is wider than the middle part, and a frame penetration hole (17) is formed in a circular shape on the upper surface; a treatment water supply pipe (40) connected to supply treatment water into the main body (10) and installed vertically in the center of the main body (10) and inducing the treatment water into the treatment space (11) while inducing a 'U'-shaped flow; a treatment water supply trap (30) connected to a floating sludge discharge pipe (51) with one side extending to the outside of the main body (10), and installed facing upward while positioned in the upper center of the treatment space (11) so that the floating sludge is collected and discharged to the outside; a sludge collector (50) with its lower part connected to the lower part of the expanded section (12) and its upper part extending to the upper part of the main body (10) A filter net (60) installed to surround the sludge collector (50) and partitions 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 in the treated water that reaches the interior of the expansion section (12);The device comprises a plurality of vertical frames (71) whose upper portion protrudes outside the main body (10) and whose lower portion is located in the treated water discharge space (12a) inside the main body (10) through the frame penetration hole (17); a horizontal frame (72) positioned horizontally on the upper portion of the main body (10) with one side connected to the vertical frame (71); a vertical moving device (73) which moves the horizontal frame (72) up and down, with one side connected to the horizontal frame (72) and the other side connected to the upper surface of the main body (10); a horizontal rotating device (74) which rotates the horizontal frame (72) horizontally, with one side connected to the main body (10) and the other side connected to the vertical moving device (73) or the horizontal frame (72); and a washing nozzle (75) which is installed on the vertical frame (71) toward the filter net (60) and connected to a washing water supply pipe (75a) to spray washing water toward the filter net (60). A filter mesh cleaning device (70); a treated water discharge pipe (80) having one side connected to the lower part of the expansion part (12) so that floating sludge is discharged within the treatment space (12) and treated water filtered by the filter mesh (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 is discharged from the lower part;The device is configured to include, wherein a filter net rotation device (100) is provided to rotate the filter net (60) horizontally based on the center of the main body (10); a cover installation hole (14) is formed in the center of the upper surface of the extension part (12); a lower support member (16) with a groove formed on its upper portion is installed on the lower inner surface of the extension part (12); a cover (15) is provided to block the cover installation hole (14); a cover support frame (18) is provided, the lower portion of which is fitted into the groove of the lower support member (16) and which surrounds the filter net (60); an upper support member (15a) with a groove formed on its lower portion so that the upper portion of the cover support frame (18) can be fitted is formed on the lower portion of the cover (15); the outer perimeter of the cover (15) is spaced apart from the inner surface of the cover installation hole (14) to form the frame penetration hole (17); and both ends are the A continuous separation and discharge device for floating sludge and settled sludge equipped with a vertically moving and horizontally rotating washing nozzle and a filter mesh rotation device, characterized in that a filter mesh support frame (61) is formed connecting the upper circumference of the filter mesh (60) and the center is connected to the lower part of the cover (15), and the filter mesh rotation device (100) is composed of a motor in which the main body is installed at the lower part of the cover (15) and the motor shaft is connected to the filter mesh support frame (61). Claim 2 A continuous separation and discharge device for floating sludge and settled sludge equipped with a vertically moving and horizontally rotating washing nozzle and a filter mesh rotation device, characterized in that, in the first paragraph, an inclined guide wall (120) is installed which is connected to the lower part of the expansion part (12) and whose upper part is inclined upward toward the center of the floating sludge discharge space (12b), so that the treated water rising from the lower part of the treatment space (11) is guided toward the sludge collector (50) by the guide of the inclined guide wall (120). Claim 3 In claim 2, the filter net (60) is provided with an auxiliary frame (62) extending from the upper part to the lower part of the filter net (60), and the auxiliary frame (62) is provided with a connecting frame (63) protruding toward the direction of the floating sludge discharge space (12b). The auxiliary guide wall (130) is connected to the connecting frame (63), has its upper part formed vertically in a cylindrical shape, and its lower part formed inclinedly while spaced apart from the inclined guide wall (120), so that a guide channel (131) is formed between it and the inclined guide wall (120). The cleaning water sprayed by the cleaning nozzle (75) rotates together with the rotation of the filter net (60) and is guided so that only the treated water from which the floating sludge has been separated moves toward the treated water discharge space (12a) without hindering the suction of floating sludge around the sludge collector (50). The device is equipped with a cleaning nozzle that moves vertically and rotates horizontally and a filter net rotation device. Continuous separation and discharge device for floating sludge and settled sludge.

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