Sand scraping device for aerated grit chamber

Abstract

The utility model relates to the technical field of water treatment engineering, and discloses a sand scraping device of an aerated grit chamber, which comprises a chamber body, sliding rails are arranged on two sides of the chamber body, a sand scraping component is arranged in a chamber cavity, the sand scraping component comprises a moving frame, a plurality of groups of sand scraping units and a pulling unit, and the moving frame is provided with a plurality of groups of pulling units. The sand scraping unit comprises a rectangular plate, a cylindrical rod, a scraping plate part and a lifting part, the scraping plate part comprises a scraping plate, and the lifting part comprises a lifting rack and a first gear. Each sand scraping unit comprises a rectangular plate, a cylindrical rod, a scraping plate part and a lifting part, the lifting parts drive the lifting plates and the cylindrical rods to move downwards, so that a scraping plate descends synchronously, a pulling unit is arranged between the two sand scraping units, the pulling unit pulls the two sand scraping units to get close to each other, and the moving track of the scraping plate is oblique line movement; and the scraping plate is attached to the inclined wall surface of the bottom end of the tank body to scrape down settled sand, operation is carried out on the two sides simultaneously, and the sand scraping efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment engineering technical field especially relates to a sand scraping device of aeration grit chamber. BACKGROUND

[0002] The sewage treatment process will adopt aeration grit chamber to handle, and the aeration grit chamber is a long channel, and the aration device is arranged at the bottom of the channel along the length direction of one side of the channel wall, due to the aeration effect, the organic particles in the wastewater are often in the suspended state, the sand particles rub each other and bear the shear force of aeration, and the organic pollutants attached to the sand particles can be removed, which is beneficial to obtain relatively pure sand particles. These sand particles with large density are thrown to the outside and sink into the sand collecting groove, and then the sand in the sand collecting groove is extracted and discharged to the outside through the sand pumping pump.

[0003] In the process, the shear force generated by aeration may not be enough to completely drive the sand particles into the sand collecting groove, which may cause the sand particles to remain on the inclined surface of the grit chamber bottom, and the sand particles may have large viscosity or contain more organic matter, which is difficult to completely separate due to strong adsorption force, and the sand scraping device is needed to push the retained sand particles into the sand collecting groove, which is time-consuming and laborious and has low efficiency.

[0004] Therefore, the technical personnel in the art provide a sand scraping device of aeration grit chamber to solve the problems in the background art. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies of the prior art, the utility model provides a sand scraping device of aeration grit chamber, which solves the problems in the background art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A sand scraping device of aeration grit chamber, comprising a pool body, slide rails are formed on both sides of the pool body, a sand scraping assembly for scraping sand is arranged in the pool body cavity, the sand scraping assembly comprises a moving frame, a sand scraping unit and a pulling unit, the moving frame is movably clamped at both ends in the corresponding slide rail, the moving frame moves along the slide rail, the sand scraping unit is a plurality of groups, the pulling unit is arranged between the two groups of sand scraping units and is used for adjusting the distance between the two groups of sand scraping units; the sand scraping unit comprises a rectangular plate, a cylindrical rod, a scraper part and a lifting part, the top end of the cylindrical rod is fixedly connected with a lifting plate, the lifting part is used for controlling the lifting plate to lift and lower, the scraper part is fixedly installed at the bottom end of the cylindrical rod, the scraper part comprises a scraper, the lifting part comprises a lifting rack and a first gear, and the lifting rack is movably engaged with the first gear; the pulling unit comprises a second gear and two groups of pulling racks, and the second gear is movably engaged with the two groups of pulling racks.

[0008] The second limiting frame is movably clamped with the corresponding moving frame, the rectangular plate and the moving frame are perpendicular to each other, and the cylindrical rod movably penetrates the rectangular plate.

[0009] The first limiting frame is movably penetrated by the other end of the lifting rack, the first gear is arranged in the cavity of the first limiting frame, the outer wall surface of the first limiting frame is further fixedly installed with a first servo motor, the output shaft of the first servo motor movably penetrates the first limiting frame and is fixedly connected with the first gear.

[0010] The side of the scraper is attached to the bottom end inclined surface of the pool body, and the triangular plate is fixedly connected between the scraper and the cylindrical rod.

[0011] The first fixed plate is fixedly installed between the two groups of moving frames, and the top end of the first fixed plate is fixedly installed with two groups of limiting columns.

[0012] The two groups of limiting columns are mutually symmetrical, the limiting column is in the shape of 'L', the top end of the two groups of limiting columns is commonly installed with a second fixed plate, the second fixed plate is fixedly installed with a second servo motor at the middle position, the second gear is arranged below the second fixed plate, and the output shaft of the second servo motor movably penetrates the second fixed plate and is fixedly connected with the second gear.

[0013] The two groups of pulling racks are centrally symmetrical, one end of the two groups of pulling racks away from each other is fixedly connected with the corresponding rectangular plate, and the other end of the two groups of pulling racks close to each other movably penetrates the corresponding limiting column.

[0014] The aeration grit chamber scraping device has the following beneficial effects:

[0015] (1) The sliding rails are arranged on the two sides of the pool body, the moving frame drives the scraping unit and the pulling unit to move along the sliding rails, the grit at the bottom end of the pool body is scraped, the scraping unit comprises a rectangular plate, a cylindrical rod, a scraper part and a lifting part, the lifting part drives the lifting plate and the cylindrical rod to move downward, so that the scraper synchronously descends, the pulling unit is arranged between the two groups of scraping units, the pulling unit pulls the two groups of scraping units to move close to each other, the moving track of the scraper is a diagonal line, the scraper scrapes the grit along the inclined wall surface at the bottom end of the pool body, the operation is performed on the two sides at the same time, the grit scraping efficiency is higher, and the practicability of the device is improved through reasonable structural design.

[0016] (2) the top of the two groups of limiting columns is jointly installed with the second fixed plate, the second servo motor is fixedly installed at the middle position of the second fixed plate, the second servo motor drives the second gear to rotate when working, the two groups of pulling racks are in a central symmetry state, one end of the two groups of pulling racks away from each other is fixedly connected with the corresponding rectangular plate, the second gear is movably engaged with the two groups of pulling racks, so that the second gear rotates to pull the two groups of rectangular plates to each other through the pulling rack, the end of the two groups of pulling racks approaching each other is movably penetrated through the corresponding limiting column, the movement of the pulling rack is limited and guided, and the stability of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an application schematic view of the sand scraping device of the aeration grit chamber.

[0018] Figure 2 It is a schematic view of the three-dimensional structure of the sand scraping assembly.

[0019] Figure 3 It is a schematic view of the three-dimensional structure of the sand scraping unit.

[0020] Figure 4 It is a schematic view of the positional relationship between the sand scraping unit and the pulling unit.

[0021] Figure 5 It is a schematic view of the three-dimensional structure of the pulling unit.

[0022] Legend:

[0023] 10, pool body; 11, sliding rail; 12, sand scraping assembly; 13, moving frame; 14, sand scraping unit; 15, pulling unit; 16, rectangular plate; 17, cylindrical rod; 18, lifting plate; 19, triangular plate; 20, scraper; 21, lifting rack; 22, first limiting frame; 23, second limiting frame; 24, first gear; 25, first servo motor; 26, first fixed plate; 27, limiting column; 28, second fixed plate; 29, second servo motor; 30, second gear; 31, pulling rack. DETAILED DESCRIPTION

[0024] The following will be described in detail in combination with the accompanying Figures 1 to 5 The application is further described in detail.

[0025] The application discloses a sand scraping device for an aeration grit chamber, which comprises a pool body, a sliding rail, a sand scraping assembly, a moving frame, a sand scraping unit, a pulling unit, a rectangular plate, a cylindrical rod, a lifting plate, a triangular plate, a scraper, a lifting rack, a first limiting frame, a second limiting frame, a first gear, a first servo motor, a first fixed plate, a limiting column, a second fixed plate, a second servo motor, a second gear and a pulling rack. Figure 1As shown, including the pool body 10, the pool body 10 is provided with slide rail 11 on both sides, the pool body 10 cavity is provided with sand scraping assembly 12 for scraping sand, sand scraping assembly 12 includes moving frame 13, sand scraping unit 14 and pull unit 15, both ends of moving frame 13 are movably clamped in corresponding slide rail 11, moving frame 13 moves along slide rail 11, sand scraping unit 14 is multiple, pull unit 15 is arranged between two groups of sand scraping unit 14 for adjusting the distance between two groups of sand scraping unit 14; sand scraping unit 14 includes rectangular plate 16, cylindrical rod 17, scraping plate 20 and lifting part, the top end of cylindrical rod 17 is fixedly connected with lifting plate 18, lifting part is used for controlling lifting plate 18 to lift, scraping plate 20 part is fixedly installed at the bottom end of cylindrical rod 17, scraping plate 20 part includes scraping plate 20, lifting part includes lifting rack 21 and first gear 24, lifting rack 21 is movably engaged with first gear 24; pull unit 15 includes second gear 30 and two groups of pull rack 31, second gear 30 is movably engaged with two groups of pull rack 31.

[0026] Specifically, by setting the slide rail 11 on both sides of the pool body 10, the moving frame 13 drives the sand scraping unit 14 and the pull unit 15 to move along the slide rail 11, the sand at the bottom end of the pool body 10 is scraped, by setting the sand scraping unit 14 including the rectangular plate 16, the cylindrical rod 17, the scraping plate 20 and the lifting part, the lifting part drives the lifting plate 18 and the cylindrical rod 17 to move downward, so that the scraping plate 20 is lowered synchronously, by setting the pull unit 15 between the two groups of sand scraping unit 14, the pull unit 15 pulls the two groups of sand scraping unit 14 to approach each other, so that the moving track of the scraping plate 20 is diagonal movement, the scraping plate 20 scrapes the sand along the inclined wall surface at the bottom end of the pool body 10, both sides are operated simultaneously, the sand scraping efficiency is higher, and the practicability of the device is improved through reasonable structure design.

[0027] Please refer to Figure 2 and Figure 3 , both ends of the rectangular plate 16 are fixedly connected with the second limiting frame 23, the second limiting frame 23 is movably clamped with the corresponding moving frame 13, the rectangular plate 16 and the moving frame 13 are in a mutually perpendicular state, and the cylindrical rod 17 movably penetrates the rectangular plate 16.

[0028] Specifically, by fixing the second limiting frame 23 on both ends of the rectangular plate 16, the second limiting frame 23 is movably clamped with the corresponding moving frame 13, so that the rectangular plate 16 moves along the moving frame 13.

[0029] One end of the lifting rack 21 is fixedly installed on the lifting plate 18, one side of the rectangular plate 16 is fixedly installed with a first limiting frame 22, the other end of the lifting rack 21 is movably penetrated through the first limiting frame 22, the first gear 24 is arranged in the cavity of the first limiting frame 22, and the outer wall surface of the first limiting frame 22 is further fixedly installed with a first servo motor 25. The output shaft of the first servo motor 25 is movably penetrated through the first limiting frame 22 and is fixedly connected with the first gear 24.

[0030] Specifically, one end of the lifting rack 21 is fixedly installed on the lifting plate 18, the first servo motor 25 drives the first gear 24 to rotate when working, the first gear 24 is movably engaged with the lifting rack 21, so that the lifting rack 21 moves downward to drive the lifting plate 18 to move downward synchronously.

[0031] One side of the scraper 20 is attached to the bottom end inclined surface of the pool body 10, and the triangular plate 19 is fixedly connected between the scraper 20 and the cylindrical rod 17.

[0032] Specifically, one side of the scraper 20 is attached to the bottom end inclined surface of the pool body 10, and the triangular plate 19 is fixedly connected between the scraper 20 and the cylindrical rod 17. The lifting plate 18 is fixedly connected with the cylindrical rod 17, so that the lifting plate 18 moves downward to drive the cylindrical rod 17 and the scraper 20 to move downward synchronously.

[0033] Please refer to Figure 4 and Figure 5 The pulling unit 15 further includes a first fixed plate 26 fixedly installed between the two groups of moving frames 13, and two groups of limiting columns 27 are fixedly installed at the top end of the first fixed plate 26.

[0034] Specifically, the first fixed plate 26 is fixedly installed between the two groups of moving frames 13, and the two groups of limiting columns 27 are fixedly installed at the top end of the first fixed plate 26, so as to facilitate the limiting of the pulling rack 31.

[0035] The two groups of limiting columns 27 are in a mutually symmetrical state, the limiting column 27 is in an "L" shape, the top end of the two groups of limiting columns 27 is commonly installed with a second fixed plate 28, a second servo motor 29 is fixedly installed at the middle position of the second fixed plate 28, a second gear 30 is arranged below the second fixed plate 28, and the output shaft of the second servo motor 29 is movably penetrated through the second fixed plate 28 and is fixedly connected with the second gear 30.

[0036] Specifically, the top end of the two groups of limiting columns 27 is commonly installed with the second fixed plate 28, the second servo motor 29 is fixedly installed at the middle position of the second fixed plate 28, and the second servo motor 29 drives the second gear 30 to rotate when working.

[0037] The two groups of pulling racks 31 are in a central symmetry state, and the ends of the two groups of pulling racks 31 away from each other are fixedly connected with the corresponding rectangular plates 16, and the ends of the two groups of pulling racks 31 close to each other are movably penetrated through the corresponding limiting columns 27.

[0038] Specifically, the two groups of pulling racks 31 are in a central symmetry state, and the ends of the two groups of pulling racks 31 away from each other are fixedly connected with the corresponding rectangular plates 16, and the second gear 30 is movably engaged with the two groups of pulling racks 31, so that the second gear 30 rotates to pull the two groups of rectangular plates 16 close to each other through the pulling racks 31, and the ends of the two groups of pulling racks 31 close to each other are movably penetrated through the corresponding limiting columns 27, which limits and guides the movement of the pulling racks 31, and further improves the stability of the device.

[0039] The working principle of the sand scraping device of the aeration grit chamber is that: the sliding rails 11 are arranged on the two sides of the pool body 10, the moving frame 13 drives the sand scraping units 14 and the pulling units 15 to move along the sliding rails 11, the sand at the bottom end of the pool body 10 is scraped, the sand scraping unit 14 comprises the rectangular plate 16, the cylindrical rod 17, the scraping plate 20 and the lifting part, the lifting part drives the lifting plate 18 and the cylindrical rod 17 to move downward, so that the scraping plate 20 is lowered synchronously, the pulling unit 15 is arranged between the two groups of sand scraping units 14, the pulling unit 15 pulls the two groups of sand scraping units 14 close to each other, so that the movement track of the scraping plate 20 is oblique movement, the scraping plate 20 scrapes the sand along the inclined wall surface at the bottom end of the pool body 10, the operation is performed on the two sides at the same time, the sand scraping efficiency is higher, and the practicability of the device is improved through reasonable structural design.

[0040] The circuit and electronic components and modules are all prior art, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of software and methods.

[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. An aerated grit chamber scraper device, comprising a chamber body (10), slide rails (11) are arranged on both sides of the chamber body (10), characterized in that: The pool body (10) is provided with a sand scraping assembly (12) for scraping sand in the cavity, the sand scraping assembly (12) comprises a moving frame (13), a sand scraping unit (14) and a pulling unit (15), both ends of the moving frame (13) are movably clamped in the corresponding slide rail (11), the moving frame (13) moves along the slide rail (11), the sand scraping unit (14) is a plurality of groups, and the pulling unit (15) is arranged between the two groups of sand scraping units (14) and is used for adjusting the distance between the two groups of sand scraping units (14); The sand scraping unit (14) comprises a rectangular plate (16), a cylindrical rod (17), a scraping plate (20) part and a lifting part, the top end of the cylindrical rod (17) is fixedly connected with a lifting plate (18), the lifting part is used for controlling the lifting plate (18) to lift, the scraping plate (20) part is fixedly installed at the bottom end of the cylindrical rod (17), the scraping plate (20) part comprises a scraping plate (20), and the lifting part comprises a lifting rack (21) and a first gear (24); the lifting rack (21) is movably engaged with the first gear (24). The pulling unit (15) comprises a second gear (30) and two groups of pulling racks (31), and the second gear (30) is movably engaged with the two groups of pulling racks (31).

2. The aerated grit chamber grit-scraper apparatus of claim 1, wherein: Both ends of the rectangular plate (16) are fixedly connected with a second limiting frame (23), the second limiting frame (23) is movably clamped with the corresponding moving frame (13), the rectangular plate (16) and the moving frame (13) are in a mutually perpendicular state, and the cylindrical rod (17) movably penetrates through the rectangular plate (16).

3. The aerated grit chamber grit-scraper apparatus of claim 1, wherein: One end of the lifting rack (21) is fixedly installed on the lifting plate (18), one side of the rectangular plate (16) is fixedly installed with a first limiting frame (22), the other end of the lifting rack (21) movably penetrates through the first limiting frame (22), the first gear (24) is arranged in the cavity of the first limiting frame (22), a first servo motor (25) is further fixedly installed on the outer wall surface of the first limiting frame (22), an output shaft of the first servo motor (25) movably penetrates through the first limiting frame (22) and is fixedly connected with the first gear (24).

4. The aerated grit chamber grit-scraper apparatus of claim 1, wherein: One side of the scraping plate (20) is attached to the bottom inclined surface of the pool body (10), and a triangular plate (19) is fixedly connected between the scraping plate (20) and the cylindrical rod (17).

5. The aerated grit chamber grit-scraper apparatus of claim 1, wherein: The pulling unit (15) further comprises a first fixed plate (26) fixedly installed between the two groups of moving frames (13), and two groups of limiting columns (27) are fixedly installed at the top end of the first fixed plate (26).

6. The aerated grit chamber grit-scraper apparatus of claim 5, wherein: The two groups of limiting columns (27) are in a mutually symmetrical state, the limiting column (27) is in an "L" shape, a second fixed plate (28) is jointly installed at the top end of the two groups of limiting columns (27), a second servo motor (29) is fixedly installed at the middle position of the second fixed plate (28), the second gear (30) is arranged below the second fixed plate (28), and an output shaft of the second servo motor (29) movably penetrates through the second fixed plate (28) and is fixedly connected with the second gear (30).

7. The aerated grit chamber grit-scraper apparatus of claim 1, wherein: The two groups of pulling racks (31) are in a central symmetry state, and the ends of the two groups of pulling racks (31) away from each other are fixedly connected with corresponding rectangular plates (16), and the ends of the two groups of pulling racks (31) close to each other are movably penetrated through corresponding limiting columns (27).

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