Novel grillage machine for sewage treatment

By driving the filter cylinder and spiral blades to rotate with a transmission motor, combined with an ultrasonic vibration component, the problem of impurity accumulation in existing bar screens is solved, achieving continuous and efficient wastewater treatment.

CN224156510UActive Publication Date: 2026-04-24GUANGZHOU NENGZHIYUAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU NENGZHIYUAN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing bar screens used in wastewater treatment often accumulate impurities between adjacent screens during filtration, requiring the machine to be stopped for disassembly and cleaning, resulting in low practicality.

Method used

The filter cartridge and spiral blades are driven by a drive motor, and an ultrasonic vibration component is used to prevent impurities from adhering, thus achieving continuous filtration and real-time transport of impurities.

Benefits of technology

It achieves continuous filtration of wastewater and real-time discharge of impurities without the need for downtime for cleaning, thus improving the practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel grillage machine for sewage treatment, relates to the technical field of sewage treatment, and aims to solve the problems that impurities fall between two adjacent filter screens, the impurities between the two adjacent filter screens cannot be removed in time, the machine needs to be shut down for disassembly and cleaning, and the practicability is low in the background technology. According to the scheme, the drainage device comprises a bottom plate, a drainage mechanism is arranged at the top of the bottom plate, the drainage mechanism comprises two mounting bases connected to the outer wall of the top of the bottom plate through bolts and a mounting cylinder connected to the outer walls of the opposite sides of the two mounting bases through bolts, and a filtering assembly is arranged in the mounting cylinder; the filtering assembly comprises filtering cylinders connected to the inner walls of the two ends of the mounting cylinder through bearings, spiral blades welded to the inner walls of the filtering cylinders and a plurality of filter screens distributed in the circumferential direction. According to the sewage treatment device, sewage can be filtered, filtered impurities can be conveyed in real time, the impurities can be cleaned without shutdown, and the practicability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a novel bar screen for wastewater treatment. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. In the wastewater treatment process, a bar screen is usually used for primary treatment of the wastewater.

[0003] A search revealed a Chinese patent (application number "202221477786.2") disclosing "a novel bar screen for sewage treatment." This bar screen includes a device body, with a first servo motor fixedly connected to the center of the back of the device body. A first rotating shaft is rotatably connected to the center of the inner cavity of the device body. A first bar screen, a second bar screen, and a third bar screen are fixedly connected to the outer wall of the first rotating shaft. A base plate is fixedly connected to the bottom of the device body, and a waste bin is movably connected to the center of the inner cavity of the base plate. A filter screen is fixedly connected to the right side of the waste bin. A connecting pipe is fixedly connected to the right side of the device body, and a water pump is connected to the front flange of the connecting pipe. However, during use, the bar screen relies on a scraper to clean impurities adhering to the filter screen surface, causing impurities to fall between adjacent filter screens. This makes it impossible to promptly remove impurities between adjacent filter screens, requiring machine shutdown and disassembly and cleaning, resulting in low practicality. Utility Model Content

[0004] This utility model provides a new type of bar screen for sewage treatment, which solves the problem mentioned in the prior art that when filtering sewage, impurities fall between two adjacent filter screens, making it impossible to remove the impurities between the two adjacent filter screens in a timely manner, requiring the machine to be stopped and disassembled for cleaning, resulting in low practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel bar screen for wastewater treatment includes a base plate. A drainage mechanism is located on the top of the base plate. The drainage mechanism includes two mounting seats bolted to the outer wall of the top of the base plate and mounting cylinders bolted to the outer walls of opposite sides of the two mounting seats. A filter assembly is located inside the mounting cylinder. The filter assembly includes filter cylinders connected to the inner walls of both ends of the mounting cylinder via bearings, spiral blades welded to the inner walls of the filter cylinders, and several circumferentially distributed filter screens. A vibration assembly is located inside the mounting cylinder. The vibration assembly includes several mounting tubes with embedded ultrasonic transducers. A fixing plate is bolted to the outer wall of the top of the base plate, and a transmission mechanism is located on one side of the fixing plate. The transmission mechanism includes a drive motor bolted to the outer wall of one side of the fixing plate.

[0007] Preferably, two connecting plates are bolted to the top outer wall of the base plate, and the two connecting plates are bolted to the outer walls of the opposite sides of the two mounting bases. A drain pipe is fixed on the lower inner wall of one side of the mounting cylinder, and one end of the drain pipe passes through and is fixed to the outer wall of one side of the mounting base.

[0008] Preferably, the filter cylinder has two ends that pass through and are connected to the outer walls of two mounting bases via bearings. The filter cylinder has several through holes on its outer wall inside the mounting cylinder, and several filter screens are respectively embedded in the several through holes. One end of the filter cylinder is equipped with a water inlet pipe via a rotary joint, and a driven gear is connected to the outer wall of one end of the filter cylinder via a pin.

[0009] The above method involves transporting sewage into the filter cylinder through the inlet pipe, where the sewage flows and the filter screen filters out impurities. The filtered sewage then flows into the installation cylinder and is discharged through the drain pipe.

[0010] Preferably, a mounting plate is bolted to one side of the outer wall of the mounting cylinder, and one end of several mounting tubes is welded to one side of the outer wall of the mounting plate. One of the mounting seats has an installation opening on one side of its outer wall, and the mounting plate is fitted into the installation opening.

[0011] The above scheme connects multiple ultrasonic transducers to an ultrasonic generator. The ultrasonic transducers then generate high-frequency vibrations, which cause the filter screen at the bottom of the mounting cylinder to vibrate, preventing impurities from adhering to the filter screen.

[0012] Preferably, a reinforcing plate is bolted to one side of the outer wall of the fixing plate, and the two reinforcing plates are bolted to the top outer wall of the base plate respectively.

[0013] Preferably, one end of the output shaft of the drive motor is connected to a mounting shaft via a coupling, and one end of the mounting shaft passes through and is connected to the outer wall of one of the mounting seats via a bearing. A drive gear is connected to the outer wall of one end of the mounting shaft via a pin, and the drive gear and the driven gear mesh with each other to form a transmission engagement.

[0014] The above scheme uses the output shaft of the drive motor to drive the filter cylinder and spiral blades to rotate. The spiral blades transport the impurities trapped inside the filter cylinder and discharge them to the outside of the filter cylinder. At the same time, the filter screen rotates along the axis of the filter cylinder to filter the sewage in batches using multiple sets of filter screens.

[0015] The beneficial effects of this utility model are as follows:

[0016] The output shaft of the drive motor drives the filter cylinder and spiral blades to rotate. The spiral blades transport the impurities trapped inside the filter cylinder and discharge them to the outside of the filter cylinder. At the same time, the filter screen rotates along the axis of the filter cylinder to filter the sewage in batches through multiple filter screens. This allows for the filtration of sewage and the real-time transport of the filtered impurities without the need to stop the machine to clean the impurities, thus improving its practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall main structure of a novel bar screen for sewage treatment proposed in this utility model.

[0018] Figure 2 This is a side view of the overall structure of a novel bar screen for wastewater treatment proposed in this utility model.

[0019] Figure 3 This is a front view structural diagram of the drainage mechanism of a novel bar screen for sewage treatment proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the main structure of the filter assembly of a novel bar screen for wastewater treatment proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the main structure of the vibration component of a novel bar screen for sewage treatment proposed in this utility model.

[0022] Figure 6 This is a front view structural diagram of the transmission mechanism of a novel bar screen for sewage treatment proposed in this utility model.

[0023] In the diagram: 1. Base plate; 2. Drainage mechanism; 201. Mounting base; 202. Connecting plate; 203. Mounting cylinder; 204. Drainage pipe; 3. Filter assembly; 301. Filter cylinder; 302. Spiral blade; 303. Filter screen; 304. Water inlet pipe; 305. Driven gear; 4. Vibration assembly; 401. Mounting plate; 402. Mounting pipe; 5. Fixing plate; 6. Transmission mechanism; 601. Transmission motor; 602. Mounting shaft; 603. Drive gear. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1, referring to Figure 1-4 and Figure 6A novel wastewater treatment bar screen includes a base plate 1. A drainage mechanism 2 is located on the top of the base plate 1. The drainage mechanism 2 includes two mounting seats 201 bolted to the outer wall of the top of the base plate 1, and mounting cylinders 203 bolted to the outer walls of opposite sides of the two mounting seats 201. Two connecting plates 202 are bolted to the outer wall of the top of the base plate 1. The two connecting plates 202 are bolted to the outer walls of opposite sides of the two mounting seats 201 on their respective sides. A drain pipe 204 is fixed to the lower inner wall of one side of the mounting cylinder 203. One end of the drain pipe 204 passes through and is fixed to the outer wall of one side of the mounting seat 201. A filter assembly 3 is located inside the mounting cylinder 203. The filter assembly 3 includes filter cylinders 301 connected to the inner walls of both ends of the mounting cylinder 203 via bearings, spiral blades 302 welded to the inner wall of the filter cylinders 301, and several circumferentially distributed filter screens 303. Both ends of the filter cylinders 301 pass through and are connected to the outer walls of the two mounting seats 201 via bearings. The filter cylinder 301, located inside the mounting cylinder 203, has several through holes on its outer wall. Several filter screens 303 are respectively embedded in the several through holes. One end of the filter cylinder 301 is connected to a water inlet pipe 304 via a rotary joint. A driven gear 305 is connected to the outer wall of one end of the filter cylinder 301 via a pin. A fixing plate 5 is bolted to the top outer wall of the base plate 1. A reinforcing plate is bolted to one side of the outer wall of the fixing plate 5. Two reinforcing plates are bolted to the top outer wall of the base plate 1. A transmission mechanism 6 is provided on one side of the fixing plate 5. The transmission mechanism 6 includes a transmission motor 601 bolted to the outer wall of one side of the fixing plate 5. One end of the output shaft of the transmission motor 601 is connected to a mounting shaft 602 via a coupling. One end of the mounting shaft 602 passes through and is connected to the outer wall of one of the mounting seats 201 via a bearing. A driving gear 603 is connected to the outer wall of one end of the mounting shaft 602 via a pin. The driving gear 603 and the driven gear 305 mesh with each other to form a transmission engagement.

[0026] Example 2, refer to Figure 5 A novel bar screen for sewage treatment also includes a vibration assembly 4. The vibration assembly 4 includes several mounting tubes 402 with ultrasonic transducers embedded inside. A mounting plate 401 is bolted to one side of the outer wall of the mounting cylinder 203. One end of each mounting tube 402 is welded to one side of the outer wall of the mounting plate 401. One mounting seat 201 has an installation opening on one side of its outer wall. The mounting plate 401 is fitted into the installation opening. Multiple ultrasonic transducers are connected to multiple ultrasonic generators respectively.

[0027] Working principle: The inlet pipe 304 transports sewage into the filter cylinder 301. The sewage flows inside the filter cylinder 301, and the filter screen 303 filters the impurities in the sewage. The filtered sewage flows into the mounting cylinder 301 and is discharged through the drain pipe 204. Multiple ultrasonic transducers are connected to an ultrasonic generator. The ultrasonic transducers then generate high-frequency vibrations, causing the filter screen 303 at the bottom of the mounting cylinder 203 to vibrate. The output shaft of the drive motor 601 drives the filter cylinder 301 and the spiral blades 302 to rotate. The spiral blades 302 transport the impurities trapped inside the filter cylinder 301 and discharge the impurities inside the filter cylinder 301 to the outside of the filter cylinder 301. At the same time, multiple sets of filter screens 303 rotate along the axis of the filter cylinder 301 to filter the sewage in batches.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A novel bar screen for wastewater treatment, comprising a base plate (1), characterized in that, The bottom plate (1) is provided with a drainage mechanism (2) at the top. The drainage mechanism (2) includes two mounting seats (201) that are respectively bolted to the outer wall of the top of the bottom plate (1) and mounting cylinders (203) that are bolted to the outer wall of the opposite side of the two mounting seats (201). The mounting cylinder (203) is provided with a filter assembly (3), which includes a filter cylinder (301) connected to the inner walls of both ends of the mounting cylinder (203) by bearings, a spiral blade (302) welded to the inner wall of the filter cylinder (301), and a number of filter screens (303) arranged in a circular pattern. The mounting cylinder (203) is provided with a vibration assembly (4), which includes a plurality of mounting tubes (402) in which ultrasonic transducers are embedded. A fixing plate (5) is bolted to the top outer wall of the base plate (1), and a transmission mechanism (6) is provided on one side of the fixing plate (5). The transmission mechanism (6) includes a transmission motor (601) bolted to the outer wall of one side of the fixing plate (5).

2. The novel bar screen for wastewater treatment according to claim 1, characterized in that, Two connecting plates (202) are bolted to the top outer wall of the base plate (1), and the two connecting plates (202) are bolted to the opposite outer wall of the two mounting bases (201) respectively. A drain pipe (204) is fixed on the lower inner wall of one side of the mounting cylinder (203), and one end of the drain pipe (204) passes through and is fixed to the outer wall of one side of the mounting base (201).

3. A novel bar screen for wastewater treatment according to claim 1, characterized in that, The filter cylinder (301) has two ends that pass through and are connected to the outer walls of two mounting bases (201) by bearings. The filter cylinder (301) has several through holes on its outer wall inside the mounting cylinder (203), and several filter screens (303) are respectively embedded in the several through holes. One end of the filter cylinder (301) is connected to a water inlet pipe (304) through a rotary joint, and a driven gear (305) is connected to the outer wall of one end of the filter cylinder (301) through a pin.

4. A novel bar screen for wastewater treatment according to claim 1, characterized in that, An installation plate (401) is bolted to one side of the outer wall of the installation cylinder (203), and one end of several installation tubes (402) is welded to one side of the outer wall of the installation plate (401). An installation opening is opened on one side of the outer wall of one of the installation seats (201), and the installation plate (401) is fitted into the installation opening.

5. A novel bar screen for wastewater treatment according to claim 1, characterized in that, A reinforcing plate is bolted to one side of the outer wall of the fixing plate (5), and the two reinforcing plates are bolted to the top outer wall of the bottom plate (1).

6. A novel bar screen for wastewater treatment according to claim 3, characterized in that, One end of the output shaft of the drive motor (601) is connected to the mounting shaft (602) via a coupling, and one end of the mounting shaft (602) passes through and is connected to the outer wall of one of the mounting seats (201) via a bearing. A drive gear (603) is connected to the outer wall of one end of the mounting shaft (602) via a pin, and the drive gear (603) and the driven gear (305) mesh with each other to form a transmission engagement.

Citation Information

Patent Citations

  • Novel grillage machine for sewage treatment

    CN218188136U