Sewage pretreatment comprehensive adjusting system

Abstract

The utility model relates to the technical field of sewage pretreatment, and discloses a comprehensive regulation system for sewage pretreatment, which comprises a grating tank, a grit chamber and a regulation tank, and a grating pore plate is obliquely mounted at the water inlet end in the grating tank; a first scraper is slidably mounted on the inclined face of the grating hole plate, the scraping end of the first scraper makes contact with the outer wall face of the grating hole plate, a cross beam plate is welded to the top of the grating pool, a suspension assembly used for driving the first scraper is mounted in the middle of the top of the cross beam plate, and the movable end of the suspension assembly is fixedly connected with the first scraper. According to the comprehensive regulation system for sewage pretreatment, various impurities adhered to the surface of a grating pore plate can be effectively scraped and stripped through the first scraper in the reciprocating motion process of the scraper, so that the problem of blockage of the grating pore plate caused by impurity adhesion is fundamentally solved, the water passing capacity and the filtering efficiency of a grating are remarkably improved, and the service life of the grating pore plate is prolonged. The smoothness and the stability of long-time operation of the sewage pretreatment system are ensured.

Description

Technical Field

[0001] This utility model relates to the field of wastewater pretreatment technology, and in particular to a comprehensive regulation system for wastewater pretreatment. Background Technology

[0002] In the field of wastewater treatment, the pretreatment stage is crucial, and one of its core tasks is to remove larger suspended solids, floating matter, and particulate impurities from wastewater. As the most common physical filtration unit in a comprehensive wastewater pretreatment and regulation system, the bar screen is typically located at the front end of the process, intercepting these impurities through its screen plates. During normal operation, wastewater flows through the bar screen, and impurities are trapped and gradually accumulate on the water-facing side of the screen.

[0003] Suspended solids and fibrous impurities in wastewater easily adhere to the surface of the screen. As the filtration time increases, the screen pores gradually become clogged, leading to increased water flow resistance and reduced treatment capacity. To maintain the screen filtration performance, it is necessary to stop the machine regularly to manually clean the impurities. This operation is cumbersome and labor-intensive. Frequent shutdowns will also interrupt the wastewater pretreatment process and reduce the overall treatment efficiency. Utility Model Content

[0004] In view of the problem that the existing grid pores are gradually blocked, resulting in increased water flow resistance and reduced treatment capacity, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a comprehensive regulation system for wastewater pretreatment, the purpose of which is to mechanize the cleaning of the bar screen.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a comprehensive sewage pretreatment and regulation system, including a bar screen, a grit chamber, and a regulating tank. A perforated bar is obliquely installed at the inlet end of the bar screen. Openings are provided on both sides of the bar screen near the inlet end. Drive rollers are mounted on both sides of the bar screen via supports. A conveyor belt is installed between two drive rollers. Multiple drainage holes are evenly spaced on the conveyor belt.

[0007] A first scraper is slidably mounted on the inclined surface of the grid plate, and the scraping end of the first scraper is in contact with the outer wall surface of the grid plate. A crossbeam plate is welded to the top of the grid pool, and a suspension assembly for driving the first scraper is installed in the middle of the top of the crossbeam plate, and the movable end of the suspension assembly is fixedly connected to the first scraper.

[0008] As an improved technical solution, a servo motor is mounted on the side of the grid pool away from the discharge end of the conveyor belt via a bracket, and a belt-type synchronization component is installed between the servo motor and the shaft of the drive roller on the same side.

[0009] As an improved technical solution, a second scraper is installed on the side of the grid pool near the discharge end of the conveyor belt via a bracket, and the scraping end of the second scraper abuts against the outer wall surface of the conveyor belt.

[0010] As an improved technical solution, an L-shaped partition is welded inside the bar grid pool and on the side of the opening near the bar grid plate. The inside of the bar grid pool is divided into a buffer chamber and a drainage chamber by the L-shaped partition. A guide seat is installed on the side of the buffer chamber away from the L-shaped partition.

[0011] As an improved technical solution, a submersible pump is installed inside the buffer chamber, and a drain pipe is installed at the outlet of the submersible pump, with the outlet end of the drain pipe located inside the drain chamber.

[0012] As an improved technical solution, the suspension assembly includes a winding disc rotatably mounted on the top of a crossbeam plate. A drive motor for driving the winding disc to rotate is installed on one side of the top of the crossbeam plate. A suspension rope is provided inside the winding cavity of the winding disc, and one end of the suspension rope is fixedly connected to a first scraper.

[0013] As an improved technical solution, guide rails are fixed at both ends of the grid plate, sliders that slide on the guide rails are fixed at both ends of the first scraper, and a limiting wheel for limiting the suspension rope is installed in the middle of the top of the crossbeam plate.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. In this utility model, after the impurities filtered out by the perforated plate fall onto the conveyor belt, the conveyor belt rotates, causing the impurities on the conveyor belt to be moved out of the interior of the grid pool through the perforations. The impurities eventually fall into the impurity collection bin for further collection. There is no need for manual cleaning of the impurities filtered at the perforated plate, which reduces the frequency of workers approaching the grid pool and protects the workers. Moreover, the impurities can be cleaned and discharged continuously in real time without the need for manual cleaning, which helps to improve work efficiency. At the same time, the second scraper will scrape off the impurities adhering to the outer wall of the conveyor belt, preventing the impurities from returning to the interior of the grid pool and causing secondary pollution.

[0016] 2. In this utility model, the first scraper can effectively scrape off and peel off various impurities adhering to the surface of the grid plate during the reciprocating motion of the scraper, fundamentally solving the problem of clogging caused by impurities in the grid plate, significantly improving the water flow capacity and filtration efficiency of the grid, ensuring the smooth and stable operation of the sewage pretreatment system for a long time, and eliminating the complex transmission mechanism. The reciprocating cleaning of the grid plate is achieved by the gravity of the first scraper and the winding and suspension action of the suspension component, significantly reducing the frequency of manual intervention and maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of a wastewater pretreatment integrated regulation system according to this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the bar screen in a comprehensive regulation system for wastewater pretreatment according to this utility model.

[0020] Figure 3 This is a cross-sectional structural diagram of the bar screen tank in a comprehensive regulation system for wastewater pretreatment according to this utility model.

[0021] Figure 4 This is a schematic diagram of the suspension assembly and the first scraper of a wastewater pretreatment integrated regulation system according to this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Bar screen; 2. Sedimentation tank; 3. Equalization tank; 4. Bar screen plate; 5. Crossbeam plate; 6. Suspension assembly; 61. Drive motor; 62. Winding disc; 63. Suspension rope; 64. Limit wheel; 65. Guide rail; 66. Slider; 7. First scraper; 8. Through-hole; 9. Conveyor belt; 10. Drive roller; 11. Servo motor; 12. Belt synchronization assembly; 13. Second scraper; 14. L-shaped partition; 15. Guide seat. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1-4This is the first embodiment of the present invention, which provides a comprehensive sewage pretreatment and regulation system. This comprehensive sewage pretreatment and regulation system includes a bar screen 1, a grit chamber 2, and a regulating tank 3. The bar screen 1 and the grit chamber 2, as well as the grit chamber 2 and the regulating tank 3, are connected by pipes. A bar screen 4 is installed obliquely at the water inlet end inside the bar screen 1. Through openings 8 are opened on both sides of the bar screen 1 near the water inlet end. Drive rollers 10 are installed on both sides of the bar screen 1 by brackets. A conveyor belt 9 is installed between the two drive rollers 10 and passes through the inside of the through openings 8. Multiple drainage holes are opened at equal intervals on the conveyor belt 9. The water contained in the impurities will be discharged through the drainage holes on the conveyor belt 9 and fall into the buffer chamber, which helps to reduce the water content in the impurities.

[0027] A first scraper 7 is slidably mounted on the inclined surface of the grid plate 4, and the scraping end of the first scraper 7 is in contact with the outer wall surface of the grid plate 4. The first scraper 7 is made of metal material. A crossbeam plate 5 is welded to the top of the grid pool 1. A suspension assembly 6 for driving the first scraper 7 is installed in the middle of the top of the crossbeam plate 5, and the movable end of the suspension assembly 6 is fixedly connected to the first scraper 7.

[0028] The suspension assembly 6 includes a winding disc 62 rotatably mounted on the top of the crossbeam plate 5. A drive motor 61 for driving the winding disc 62 to rotate is installed on one side of the top of the crossbeam plate 5. The drive end of the drive motor 61 is connected to the shaft end of the winding disc 62. A suspension rope 63 is provided inside the winding cavity of the winding disc 62. One end of the suspension rope 63 is fixedly connected to the first scraper 7.

[0029] Both ends of the grid plate 4 are fixed with guide rails 65, both ends of the first scraper 7 are fixed with sliders 66 that slide on the guide rails 65, and the top of the crossbeam plate 5 is equipped with a limiting wheel 64 for limiting the suspension rope 63.

[0030] During use, the first scraper 7 effectively scrapes and peels off various impurities adhering to the surface of the grid plate 4 during its reciprocating motion, fundamentally solving the clogging problem caused by impurities in the grid plate 4. This significantly improves the water flow capacity and filtration efficiency of the grid, ensuring the smooth and stable operation of the sewage pretreatment system over a long period of time. Furthermore, it eliminates the need for complex transmission mechanisms, achieving reciprocating cleaning of the grid plate 4 through the gravity of the first scraper 7 and the retraction and suspension action of the suspension component 6, significantly reducing the frequency of manual intervention and maintenance costs.

[0031] Example 2

[0032] Reference Figures 1-3This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a servo motor 11 is installed on the side of the grid pool 1 away from the discharge end of the conveyor belt 9 via a bracket. A belt-type synchronization assembly 12 is installed between the servo motor 11 and the shaft of the drive roller 10 on the same side. The belt-type synchronization assembly 12 consists of two synchronous pulleys and a synchronous belt installed between the two synchronous pulleys. One synchronous pulley is installed on the shaft end of the drive roller 10, and the other is installed on the drive end of the servo motor 11.

[0033] A second scraper 13 is installed on the side of the bar screen 1 near the discharge end of the conveyor belt 9 via a bracket. The scraping end of the second scraper 13 abuts against the outer wall of the conveyor belt 9. The second scraper 13 scrapes off the impurities adhering to the outer wall of the conveyor belt 9, preventing the impurities from returning to the interior of the bar screen 1 and causing secondary pollution.

[0034] An L-shaped partition 14 is welded inside the grit chamber 1 and on the side of the opening 8 near the grit plate 4. The L-shaped partition 14 is located at the bottom of the grit plate 4. The interior of the grit chamber 1 is divided into a buffer chamber and a drainage chamber by the L-shaped partition 14. The conveyor belt 9 is located inside the buffer chamber. A guide seat 15 is installed on the side of the buffer chamber away from the L-shaped partition 14. The guide slope of the guide seat 15 is on the same plane as the top of the outer wall of the conveyor belt 9. Through the blocking and guidance of the L-shaped partition 14 and the guide seat 15, the sewage and impurities can only fall onto the conveyor belt 9, avoiding garbage from being left inside the buffer chamber.

[0035] A submersible pump is installed inside the buffer chamber. A drain pipe is installed at the outlet of the submersible pump, and the outlet end of the drain pipe is located inside the drain chamber. The submersible pump pumps water from inside the buffer chamber and delivers it to the drain chamber through the drain pipe.

[0036] During use, the conveyor belt 9 rotates, causing impurities falling on the conveyor belt 9 to be removed from the inside of the grid pool 1 through the through-hole 8. The impurities eventually fall into the impurity collection chamber for further collection. There is no need for manual cleaning of the impurities at the filter point on the grid plate 4, which reduces the frequency of workers approaching the grid pool 1, protects the workers, and eliminates the need for manual cleaning. Impurities can be cleaned and discharged continuously in real time, which helps to improve work efficiency.

[0037] The remaining structure is the same as that in Example 1.

[0038] Based on embodiments 1-2, the working principle of this utility model is as follows: When sewage enters the grit chamber 1, it is directly sprayed onto the inclined surface of the grit plate 4. The sewage is filtered through the mesh on the grit plate 4. After filtration, the water enters the drainage chamber. The filtered impurities slide down the inclined surface of the grit plate 4, thus achieving the filtration of sewage.

[0039] An impurity collection bin or sewage conveyor is placed at the discharge end of the conveyor belt 9. After the impurities filtered out by the grid plate 4 fall onto the conveyor belt 9, the servo motor 11 drives the drive roller 10 to continue rotating through the belt synchronization component 12. Under the transmission action of the two drive rollers 10 and the conveyor belt 9, the conveyor belt 9 rotates, causing the impurities falling on the conveyor belt 9 to be moved out of the grid pool 1 through the through hole 8. The impurities eventually fall into the impurity collection bin for further collection.

[0040] The slider 66 moves along the guide rail 65. Under the guidance of the two sliders 66, the first scraper 7 moves along the direction of the guide rail 65. The drive motor 61 drives the winding disc 62 to unwind the suspension rope 63. At this time, under the action of gravity, the first scraper 7 moves downward along the grid plate 4. During the movement of the first scraper 7, the scraping end of the first scraper 7 will clean the filter surface of the grid plate 4 and push the impurities adhering to the filter surface toward the conveyor belt 9, thereby achieving self-cleaning of the grid plate 4.

[0041] When the first scraper 7 reaches the lower end of the grid plate 4, the drive motor 61 drives the winding disc 62 to rotate in the opposite direction to wind up the suspension rope 63, pulling the first scraper 7 back to the upper position.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A comprehensive sewage pretreatment and equalization system, comprising a screen tank (1), a grit chamber (2), and an equalization tank (3), characterized in that: The grid pool (1) has a grid plate (4) installed at an angle at the water inlet end. The grid pool (1) has openings (8) on both sides near the water inlet end. The grid pool (1) has drive rollers (10) installed on both sides of the grid pool (1) by brackets. A conveyor belt (9) is installed between the two drive rollers (10). The conveyor belt (9) has multiple drainage holes at equal intervals. A first scraper (7) is slidably installed on the inclined surface of the grid plate (4), and the scraping end of the first scraper (7) is in contact with the outer wall surface of the grid plate (4). A crossbeam plate (5) is welded to the top of the grid pool (1). A suspension assembly (6) for driving the first scraper (7) is installed in the middle of the top of the crossbeam plate (5), and the movable end of the suspension assembly (6) is fixedly connected to the first scraper (7).

2. The wastewater pretreatment integrated regulation system according to claim 1, characterized in that: A servo motor (11) is mounted on the side of the grid pool (1) away from the discharge end of the conveyor belt (9) via a bracket, and a belt-type synchronization component (12) is installed between the servo motor (11) and the shaft of the drive roller (10) on the same side.

3. The wastewater pretreatment integrated regulation system according to claim 2, characterized in that: The second scraper (13) is mounted on the side of the grid pool (1) near the discharge end of the conveyor belt (9) by a bracket, and the scraping end of the second scraper (13) abuts against the outer wall surface of the conveyor belt (9).

4. The integrated regulation system for wastewater pretreatment according to claim 3, characterized in that: An L-shaped partition (14) is welded inside the grid pool (1) and on the side of the opening (8) near the grid hole plate (4). The inside of the grid pool (1) is divided into a buffer chamber and a drainage chamber by the L-shaped partition (14). A guide seat (15) is installed on the side of the buffer chamber away from the L-shaped partition (14).

5. The wastewater pretreatment integrated regulation system according to claim 4, characterized in that: A submersible pump is installed inside the buffer chamber, and a drain pipe is installed at the outlet of the submersible pump, with the outlet end of the drain pipe located inside the drain chamber.

6. The wastewater pretreatment integrated regulation system according to claim 5, characterized in that: The suspension assembly (6) includes a winding disc (62) rotatably mounted on the top of the crossbeam plate (5). A drive motor (61) for driving the winding disc (62) to rotate is installed on one side of the top of the crossbeam plate (5). A suspension rope (63) is provided inside the winding cavity of the winding disc (62), and one end of the suspension rope (63) is fixedly connected to the first scraper (7).

7. The wastewater pretreatment integrated regulation system according to claim 6, characterized in that: Both ends of the grid plate (4) are fixed with guide rails (65), both ends of the first scraper (7) are fixed with sliders (66) that slide on the guide rails (65), and the top of the crossbeam plate (5) is equipped with a limiting wheel (64) for limiting the suspension rope (63).

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