An inner orifice plate type fine screen

Abstract

The utility model discloses an inner flow hole plate type fine grid relates to plate type fine grid device design technical field, including plate type grid main part, fine grid installation unit and cleaning outlet unit, and the both sides of plate type grid main part respectively set up and the water outlet hole, and two water outlet holes are fixedly connected with corresponding sewage inlet pipeline respectively, plate type grid main part front and back two sides are provided with a cleaning outlet unit respectively, and fine grid installation unit contains connecting apron, fixed rectangular plate, clamping strip, installation rectangular plate and pull wind handrail, the upper surface of plate type grid main part is provided with an access hole, and the access hole is fixedly connected with connecting apron, and the sewage filtering is more thorough, and the fine grid dismounting is more convenient, does not influence fine grid replacement cleaning, and the garbage cleaning in the device is more convenient, prevents causing fine grid blockage.

Description

Technical Field

[0001] This utility model relates to the field of plate-type fine grid device design technology, specifically a plate-type fine grid with internal flow inlet holes. Background Technology

[0002] A fine screen is a solid-liquid separation device consisting of parallel metal bars and a frame. It is typically installed at an angle in sewage channels, at the inlet of pump house sump wells, or before grit chambers to intercept and remove large suspended solids and floating debris from sewage, protecting pumps and subsequent treatment facilities. Based on the net bar spacing, fine screens belong to a category of screens with relatively small spacing (usually 1.5~10 mm), and are primarily cleaned manually or mechanically. Its design parameters include calculations of the flow velocity through the screen, the width of the screen channel, and the amount of screen residue, requiring consideration of both hydraulic conditions and structural strength. In sewage treatment, an internally inlet perforated plate type fine screen is needed for convenient filtration.

[0003] Existing internal flow perforated plate type fine screens have the disadvantages of incomplete sewage filtration, inconvenient disassembly and assembly of the fine screen, difficulty in replacing and cleaning the fine screen, inconvenience in cleaning up garbage inside the device, and easy clogging of the fine screen. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an internal inlet perforated plate type fine screen, which filters sewage more thoroughly, is more convenient to disassemble and assemble the fine screen, does not affect the replacement and cleaning of the fine screen, and makes it easier to clean up the garbage in the device, preventing the fine screen from clogging. It can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal inlet perforated plate-type fine screen, comprising a plate-type screen body, a fine screen installation unit, and a cleaning and effluent unit; The main body of the plate screen has two water outlet holes on the left and right sides respectively. The two water outlet holes are fixedly connected to the corresponding sewage inlet pipes. A cleaning water outlet unit is provided on the front and rear sides of the main body of the plate screen. Fine grille installation unit: includes a connecting cover plate, a fixed rectangular plate, a snap-fit ​​strip, an installation rectangular plate, and a pull handle. An inspection hole is provided on the upper surface of the main body of the plate grille, and the inspection hole is fixedly snapped into the connecting cover plate. A pull handle is provided on the upper surface of the connecting cover plate. A fixed rectangular plate is fixedly connected to the lower surface of the connecting cover plate. A snap-fit ​​groove is provided on the lower side of the fixed rectangular plate, and the snap-fit ​​strip is fixedly snapped into the groove. An installation rectangular plate is fixedly connected to the lower surface of the snap-fit ​​strip. A post is provided at each of the four corners of the installation rectangular plate, and the installation rectangular plate is snapped into the fixed rectangular plate through the post.

[0006] The main body of the plate bar is used for fixed installation. The sewage inlet pipe allows sewage to flow into the device, enter through the internal central area, and pass through the filter media from the inside out for filtration. The cleaning outlet unit is used for cleaning up debris. The connecting cover plate is used for sealing and fixing. The fixing rectangular plate is used to fix the snap-fit ​​strip, which is used to fix the mounting rectangular plate. The mounting rectangular plate is used to fix the bar frame, thus enabling quick and easy installation of the bar for filtration. The pull handle is used for moving the connecting cover plate for easy replacement.

[0007] Furthermore, the fine grid installation unit also includes a grid fixing frame, a fine grid, a grid fixing seat, and a backflow mesh plate. Three equally spaced grid fixing seats are fixedly connected to the lower surface of the plate grid body. Three equally spaced grid fixing frames are fixedly connected to the lower surface of the mounting rectangular plate. Each grid fixing frame is fixedly snapped into the corresponding grid fixing seat. One fine grid is fixedly snapped into each grid fixing frame. Multiple equally spaced backflow mesh plates are fixedly connected to the left and right surfaces of each fine grid.

[0008] The grid fixing frame is used to fix the fine grid, which is used to filter sewage. The grid fixing seat is used to fix the grid fixing frame, and the backflow mesh plate is used to guide the flow of sewage for easy filtration.

[0009] Furthermore, the fine grid mounting unit also includes a vibration generator, with one vibration generator respectively installed on each of the three grid fixing frames. The input end of the vibration generator is electrically connected to the output end of an external power supply through an external control switch group.

[0010] The vibration generator uses a miniature vibration generator to vibrate the fine screen, thereby preventing the fine screen from clogging and facilitating purification and filtration.

[0011] Furthermore, the cleaning water outlet unit includes a cleaning spray head, a connecting pipe, and a power pump. A power pump is installed on the front side of the plate-type bar screen body. A rectangular hole is opened on the front side of the plate-type bar screen body below the power pump. The rectangular hole is fixedly connected to the cleaning spray head by a sealing strip. The spray holes on the cleaning spray head are set inside the plate-type bar screen body. The water inlet of the cleaning spray head is fixedly connected to one end of the connecting pipe. The other end of the connecting pipe is fixedly connected to the water outlet on the power pump. The water outlet on the power pump is connected to an external pipe. The input end of the power pump is electrically connected to the output end of an external power supply through an external control switch group.

[0012] The cleaning nozzle is used to spray water for easy cleaning and to prevent debris from clogging the system. The power pump provides power for water flow, facilitating high-pressure water spraying. The connecting pipes facilitate water flow for water spraying and cleaning.

[0013] Furthermore, the cleaning and effluent unit also includes an effluent pipe and a circular filter screen. The left and right sides of the plate-type bar screen body are respectively provided with an effluent hole located below the sewage inlet pipe. The two effluent holes are respectively fixedly connected to the circular filter screen. The left and right sides of the plate-type bar screen body are fixedly connected to the effluent pipe at the position inside the effluent hole.

[0014] The outlet pipe is used to discharge the filtered wastewater for drainage purposes, while the circular filter screen is used for secondary filtration to make the wastewater more thoroughly filtered for wastewater intake.

[0015] Furthermore, the cleaning water outlet unit also includes a cleaning cover plate, and a rectangular inspection hole is provided on the rear surface of the plate-type bar screen body at the position corresponding to the cleaning water spray head. The rectangular inspection hole is slidably engaged with the cleaning cover plate.

[0016] The cover plate is used for sealing during filtration to facilitate wastewater treatment. After wastewater treatment, it is used to clean up garbage, making it convenient for sweeping and transporting garbage.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This internal inlet perforated plate type fine screen has the following advantages: It is equipped with a fine screen installation unit, which is sealed and fixed by a connecting cover plate. A fixed rectangular plate is used to fix the snap-fit ​​strip, which is used to fix the mounting rectangular plate. The mounting rectangular plate is used to fix the screen fixing frame, thus fixing and installing the screen quickly and easily. It is convenient for filtration. A pull handle is used to move the connecting cover plate. The screen fixing frame is used to fix the fine screen. The fine screen is used to filter sewage. The screen fixing seat is used to fix the screen fixing frame. The backflow mesh plate is used to guide the sewage flow. The vibration generator makes the fine screen vibrate, thereby preventing the fine screen from clogging and performing filtration. 2. This internal inlet perforated plate fine screen has the following advantages: It is equipped with a cleaning and water outlet unit, which uses a cleaning spray head to spray water for easy cleaning and to prevent debris blockage. The power pump provides power for water flow, facilitating high-pressure water spraying. The connecting pipe facilitates water flow, and the outlet pipe allows filtered wastewater to be discharged for drainage. The circular filter screen is used for secondary filtration, and the cleaning cover is used to seal during filtration, facilitating wastewater treatment. After wastewater treatment, debris is removed, and the effluent is used for debris removal. 3. This internal inlet perforated plate type fine screen has the following advantages: more thorough sewage filtration, easier disassembly and assembly of the fine screen without affecting the replacement and cleaning of the fine screen, easier cleaning of garbage inside the device, and prevention of fine screen blockage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a partial structural diagram of the fine grid mounting unit of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the rear side of this utility model.

[0019] In the diagram: 1. Plate-type bar screen body; 2. Sewage inlet pipe; 3. Fine bar screen installation unit; 31. Connecting cover plate; 32. Fixed rectangular plate; 33. Clip strip; 34. Installation rectangular plate; 35. Bar screen fixing frame; 36. Vibration generator; 37. Fine bar screen; 38. Bar screen fixing seat; 39. Backflow screen plate; 310. Air pull handle; 4. Cleaning outlet unit; 41. Outlet pipe; 42. Circular filter screen plate; 43. Cleaning cover plate; 44. Cleaning spray head; 45. Connecting pipe; 46. Power pump. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This embodiment provides a technical solution: an internal inlet perforated plate fine screen, including a plate screen body 1, a fine screen installation unit 3, and a cleaning and effluent unit 4; The main body of the plate screen 1 has two water outlet holes on the left and right sides respectively. The two water outlet holes are fixedly connected to the corresponding sewage inlet pipes 2. A cleaning water outlet unit 4 is provided on the front and rear sides of the main body of the plate screen 1. Fine grille installation unit 3: includes a connecting cover plate 31, a fixed rectangular plate 32, a snap-fit ​​strip 33, an installation rectangular plate 34, and a pull handle 310. An inspection hole is provided on the upper surface of the plate grille body 1, and the inspection hole is fixedly snapped into the connecting cover plate 31. A pull handle 310 is provided on the upper surface of the connecting cover plate 31. A fixed rectangular plate 32 is fixedly connected to the lower surface of the connecting cover plate 31. A snap-fit ​​groove is provided on the lower side of the fixed rectangular plate 32, and the snap-fit ​​strip 33 is fixedly snapped into the snap-fit ​​groove. An installation rectangular plate 34 is fixedly connected to the lower surface of the snap-fit ​​strip 33. A post is provided at each of the four corners of the installation rectangular plate 34, and the installation rectangular plate 34 is snapped into the fixed rectangular plate 32 through the post.

[0022] The main body 1 of the plate bar screen is used for fixed installation. The sewage inlet pipe 2 allows sewage to flow into the device, enter through the internal central area, and exit through the filter medium from the inside out for filtration. The cleaning outlet unit 4 is used for cleaning up garbage. The connecting cover plate 31 is used for sealing and fixing. The fixing rectangular plate 32 is used to fix the snap-fit ​​strip 33. The snap-fit ​​strip 33 is used to fix the mounting rectangular plate 34. The mounting rectangular plate 34 is used to fix the bar screen fixing frame 35, thereby fixing and installing the bar screen for quick installation and filtration. The pull handle 310 is used to move the connecting cover plate 31 for easy replacement.

[0023] The fine grid installation unit 3 also includes a grid fixing frame 35, a fine grid 37, a grid fixing seat 38, and a backflow mesh plate 39. Three equally spaced grid fixing seats 38 are fixedly connected to the lower surface of the plate grid body 1. Three equally spaced grid fixing frames 35 are fixedly connected to the lower surface of the mounting rectangular plate 34. Each grid fixing frame 35 is fixedly snapped into the corresponding grid fixing seat 38. One fine grid 37 is fixedly snapped into each grid fixing frame 35. Multiple equally spaced backflow mesh plates 39 are fixedly connected to the left and right sides of each fine grid 37.

[0024] The grid fixing frame 35 is used to fix the fine grid 37, which is used to filter sewage. The grid fixing seat 38 is used to fix the grid fixing frame 35. The backflow mesh plate 39 is used to guide the flow of sewage for easy filtration.

[0025] The fine grid mounting unit 3 also includes a vibration generator 36. Each of the three grid fixing frames 35 is equipped with a vibration generator 36. The input end of the vibration generator 36 is electrically connected to the output end of an external power supply through an external control switch group.

[0026] The vibration generator 36 uses a miniature vibration generator to make the fine screen 37 vibrate, thereby preventing the fine screen 37 from clogging and facilitating purification and filtration.

[0027] The cleaning water outlet unit 4 includes a cleaning spray head 44, a connecting pipe 45, and a power pump 46. A power pump 46 is provided on the front side of the plate bar screen body 1. A rectangular hole is provided on the front side of the plate bar screen body 1 below the power pump 46. The rectangular hole is fixedly connected to the cleaning spray head 44 by a sealing strip. The spray holes on the cleaning spray head 44 are set inside the plate bar screen body 1. The water inlet on the cleaning spray head 44 is fixedly connected to one end of the connecting pipe 45. The other end of the connecting pipe 45 is fixedly connected to the water outlet on the power pump 46. The water outlet on the power pump 46 is connected to an external pipe. The input end of the power pump 46 is electrically connected to the output end of an external power supply through an external control switch group.

[0028] The cleaning nozzle 44 is used for spraying water to facilitate cleaning and prevent debris from clogging the system. The power pump 46 is used to provide power for water flow, facilitating high-pressure water spraying. The connecting pipe 45 is used to facilitate water flow for water spraying cleaning.

[0029] The cleaning and effluent unit 4 also includes an effluent pipe 41 and a circular filter screen 42. The left and right sides of the plate bar screen body 1 are respectively provided with an effluent hole located below the sewage inlet pipe 2. The two effluent holes are respectively fixedly connected to the circular filter screen 42. The left and right sides of the plate bar screen body 1 are fixedly connected to the effluent pipe 41 at the position inside the effluent hole.

[0030] The outlet pipe 41 is used to discharge the filtered sewage for drainage purposes, while the circular filter screen 42 is used for secondary filtration to make the sewage filtration more thorough for the purpose of purifying the sewage inlet water.

[0031] The cleaning water outlet unit 4 also includes a cleaning cover plate 43. A rectangular inspection hole is provided on the rear surface of the plate grille body 1 at the position corresponding to the cleaning spray head 44. The rectangular inspection hole is slidably engaged with the cleaning cover plate 43.

[0032] The cover plate 43 is used for sealing during filtration to facilitate wastewater treatment. After wastewater treatment, it is used to clean up garbage, making it convenient for sweeping and transporting garbage.

[0033] The working principle of the internal flow-inlet perforated plate type fine screen provided by this utility model is as follows: First, the connecting cover plate 31 is used for sealing and fixing. The fixing rectangular plate 32 is used to fix the snap-fit ​​strip 33. The snap-fit ​​strip 33 is used to fix the mounting rectangular plate 34. The mounting rectangular plate 34 is used to fix the screen fixing frame 35. This fixation and installation facilitates quick installation of the screen and facilitates filtration. The pull handle 310 is used to move the connecting cover plate 31. The screen fixing frame 35 is used to fix the fine screen 37. The fine screen 37 is used for filtering sewage. The screen fixing seat 38 is used to fix the screen fixing frame 35. The backflow mesh plate 39 is used for... The system guides the flow of sewage. A vibration generator 36 vibrates the fine screen 37 to prevent it from clogging. Water is then sprayed through a cleaning nozzle 44 for easy cleaning and to prevent debris blockage. A power pump 46 provides power for the water flow, facilitating high-pressure water spraying. A connecting pipe 45 facilitates water flow, and an outlet pipe 41 discharges the filtered sewage. A circular filter screen 42 is used for secondary filtration, and a cleaning cover 43 seals the filter during filtration to facilitate sewage treatment. After sewage treatment, debris is removed.

[0034] It is worth noting that the core chip of the external control switch group disclosed in the above embodiments is a PLC microcontroller, the vibration generator 36 is a micro vibration generator, and the external control switch group controls the operation of the vibration generator 36 and the power pump 46 using methods commonly used in the prior art.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An in-flow orifice plate fine screen characterized by: It includes a plate bar screen body (1), a fine bar screen installation unit (3), and a cleaning and effluent unit (4); The main body of the plate screen (1) has two water outlet holes on the left and right sides respectively. The two water outlet holes are fixedly connected to the corresponding sewage inlet pipes (2). A cleaning water outlet unit (4) is provided on the front and rear sides of the main body of the plate screen (1). Fine grille installation unit (3): includes a connecting cover plate (31), a fixed rectangular plate (32), a snap-fit ​​strip (33), an installation rectangular plate (34), and a pull handle (310). The upper surface of the plate grille body (1) is provided with an inspection hole, which is fixedly snapped into the connecting cover plate (31). A pull handle (310) is provided on the upper surface of the connecting cover plate (31). A fixed rectangular plate (32) is fixedly connected to the lower surface of the connecting cover plate (31). A snap-fit ​​groove is provided on the lower side of the fixed rectangular plate (32), which is fixedly snapped into the snap-fit ​​strip (33). An installation rectangular plate (34) is fixedly connected to the lower surface of the snap-fit ​​strip (33). A post is provided at each of the four corners of the installation rectangular plate (34), and the installation rectangular plate (34) is snapped into the fixed rectangular plate (32) through the post.

2. An in-channel orifice fine screen in accordance with claim 1, wherein: The fine grid installation unit (3) also includes a grid fixing frame (35), a fine grid (37), a grid fixing seat (38), and a backflow mesh plate (39). Three equally spaced grid fixing seats (38) are fixedly connected to the lower surface of the plate grid body (1). Three equally spaced grid fixing frames (35) are fixedly connected to the lower surface of the mounting rectangular plate (34). Each grid fixing frame (35) is fixedly snapped into the corresponding grid fixing seat (38). Each grid fixing frame (35) is fixedly snapped into a fine grid (37). Multiple equally spaced backflow mesh plates (39) are fixedly connected to the left and right sides of each fine grid (37).

3. An in-line flow orifice plate fine screen according to claim 2, wherein: The fine grid mounting unit (3) also includes a vibration generator (36). Each of the three grid fixing frames (35) is provided with a vibration generator (36). The input end of the vibration generator (36) is electrically connected to the output end of an external power supply through an external control switch group.

4. An in-line orifice fine screen in accordance with claim 1, wherein: The cleaning water outlet unit (4) includes a cleaning spray head (44), a connecting pipe (45), and a power pump (46). A power pump (46) is provided on the front side of the plate bar screen body (1). A rectangular hole is provided on the front side of the plate bar screen body (1) below the power pump (46). The rectangular hole is fixedly connected to the cleaning spray head (44) by a sealing strip. The spray holes on the cleaning spray head (44) are set inside the plate bar screen body (1). The water inlet on the cleaning spray head (44) is fixedly connected to one end of the connecting pipe (45). The other end of the connecting pipe (45) is fixedly connected to the water outlet on the power pump (46). The water outlet on the power pump (46) is connected to an external pipe. The input end of the power pump (46) is electrically connected to the output end of an external power supply through an external control switch group.

5. An in-line flow orifice plate fine screen according to claim 4, wherein: The cleaning and effluent unit (4) also includes an effluent pipe (41) and a circular filter screen (42). The left and right sides of the plate-type bar screen body (1) are respectively provided with an effluent hole located below the sewage inlet pipe (2). The two effluent holes are respectively fixedly connected to the circular filter screen (42). The left and right sides of the plate-type bar screen body (1) are fixedly connected to the effluent pipe (41) located inside the effluent holes.

6. An in-line orifice fine screen according to claim 4, wherein: The cleaning water outlet unit (4) also includes a cleaning cover plate (43). A rectangular inspection hole is provided on the rear surface of the plate grid body (1) at the position corresponding to the cleaning spray head (44). The rectangular inspection hole is slidably engaged with the cleaning cover plate (43).

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