Rotary grille provided with pneumatic device and capable of blowing off sundries

Abstract

The utility model relates to the technical field of sewage treatment equipment, and provides a rotary grating provided with a pneumatic device and capable of blowing off sundries, which comprises a grating plate, a tank body is arranged on the outer side of the bottom end of the grating plate, a water inlet is formed in the side wall of the tank body, and rubber water baffles are fixedly connected to the two inner side walls of the grating plate respectively. A plurality of cleaning rake teeth are rotationally connected to the inner walls of the two rubber water baffles, an air blowing assembly is arranged at the top of the grating plate and comprises an air pump air compressor, an air conveying pipe and an air blowing device, the bottom of the air pump air compressor is fixedly connected with the outer wall of the grating plate, and an outlet of the air pump air compressor fixedly communicates with one end of the air conveying pipe; the other end of the air delivery pipe is fixedly communicated with an air blowing device outside the tank body, and the air blowing device is fixedly connected to the outer wall of the grating plate. The air blowing assembly is arranged, air flow is sprayed to the cleaning rake teeth through the air pump air compressor and the air conveying pipe, impurities which are attached to the cleaning rake teeth and are small in mass and size are blown away, and the cleaning efficiency of the grille is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a rotary grille with a pneumatic device for blowing off sundries. Background Art

[0002] Sewage contains a large amount of organic matter and is relatively easy to treat. The process of purifying sewage to meet the water quality requirements for discharging into a certain water body or reusing it is called sewage treatment. A grille machine is a solid-liquid separation device that can continuously remove sundries from fluids. It is an indispensable special device in the production processes of urban sewage treatment, waterworks, power plant inlets, textiles, and other industries, and is a commonly used solid-liquid screening device in China.

[0003] Grille machines include high-chain type, drum type, rotary grille machines, etc. Among them, the rotary grille sewage machine is composed of a unique set of rake teeth assembled into a rotary grille chain. Driven by a motor reducer, the rake tooth chain rotates in the reverse water flow direction. When the rake tooth chain runs to the upper part of the device, due to the guidance of the sheave and the curved rail, a relative self-cleaning movement is generated between each group of rake teeth, and most of the solid substances fall by gravity.

[0004] However, only some sundries with larger mass can be cleaned by relying on gravity. There are still some impurities with smaller mass and smaller volume that are easily adhered to the rake teeth and are not easy to fall off, affecting the cleaning efficiency of the grille. Summary of the Utility Model

[0005] The utility model provides a rotary grille with a pneumatic device for blowing off sundries, aiming to solve the existing problems.

[0006] The utility model is implemented as follows. A rotary grille with a pneumatic device for blowing off sundries includes: a grille plate. A pool body is arranged outside the bottom end of the grille plate. An inlet is provided on the side wall of the pool body. Rubber water baffle plates are respectively fixedly connected to the inner side walls of the grille plate. A plurality of cleaning rake teeth are rotatably connected to the inner walls of the two rubber water baffle plates. A blowing assembly is arranged on the top of the grille plate. The blowing assembly includes an air pump air compressor, an air delivery pipe, and a blowing device. The bottom of the air pump air compressor is fixedly connected to the outer wall of the grille plate. The outlet of the air pump air compressor is fixedly communicated with one end of the air delivery pipe. The end of the air delivery pipe far away from the air pump air compressor is fixedly communicated with the blowing device outside the pool body. The blowing device is fixedly connected to the outer wall of the grille plate on the side facing the inlet, and the blowing device and the topmost cleaning rake tooth are at the same horizontal height.

[0007] Preferably, an inspection hole cover is provided on the side of the part of the grid plate above the pool body facing the water inlet. A driving device is fixedly connected to the top of the grid plate, and a rain cover is arranged around the driving device. The rain cover is fixedly connected to the outer wall of the grid plate. A transmission sprocket group is installed at the top of the outer side wall of the grid plate. The upper end of the transmission sprocket group is connected to the output end of the driving device. A sprocket guard is arranged around the transmission sprocket group. A main shaft is fixedly connected to the center of the inner wall at the lower end of the transmission sprocket group. One end of the main shaft away from the transmission sprocket group extends into the grid plate and is rotatably connected to the inner side wall of the grid plate. Transmission chain structures are respectively arranged at both ends of the main shaft. The parts of the two transmission chain structures away from the main shaft are respectively engaged with both ends of a plurality of cleaning rake teeth.

[0008] Preferably, the plurality of cleaning rake teeth are arranged in parallel at equal intervals.

[0009] Preferably, guide wheels are rotatably connected to both ends of the lowermost one of the plurality of cleaning rake teeth.

[0010] Preferably, the blowing device is provided with a plurality of jet ports, and the arrangement directions of the plurality of jet ports are the same as the arrangement direction of the cleaning rake teeth.

[0011] Preferably, the jet direction of the jet ports of the blowing device faces the rear of the grid plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The rotary grid with a pneumatic device capable of blowing off sundries is provided with a blowing assembly. Air is pumped into the air delivery pipe by an air pump and an air compressor, and the air flow sprays from the nozzles of the blowing device onto the uppermost cleaning rake teeth, blowing the impurities with smaller mass and smaller volume adhering to the cleaning rake teeth into the hopper, improving the cleaning efficiency of the grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic side view structure diagram of an embodiment of the present utility model;

[0016] Figure 2 is a schematic front view structure diagram of an embodiment of the present utility model;

[0017] Figure 3 is Figure 2 an enlarged structure diagram of part A in

[0018] The reference numerals in the drawings are: 1, pond body; 2, grille plate; 3, inspection hole cover; 4, main shaft; 5, water inlet; 6, drive device; 7, air pump and air compressor; 8, air delivery pipe; 9, rain shield; 10, air blowing device; 11, sprocket guard; 12, drive sprocket group; 13, cleaning rake teeth; 14, rubber water baffle; 15, guide wheel; 16, drive chain structure. Detailed implementation mode

[0019] In order to more fully understand the technical content of the present utility model, the technical solution of the present utility model will be further introduced and described below in conjunction with specific embodiments, but not limited thereto. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present utility model.

[0020] In the description of the embodiments of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0021] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Refer to Figures 1 to 3, the rotary grille with a pneumatic device for blowing off sundries includes: a pool body 1, a grille plate 2, an inspection hole cover 3, a main shaft 4, a water inlet 5, a driving device 6, an air pump air compressor 7, an air delivery pipe 8, a rain shield 9, a blowing device 10, a sprocket guard 11, a transmission sprocket set 12, cleaning rake teeth 13, a rubber water baffle 14, a guide wheel 15 and a transmission chain structure 16. The outside of the bottom end of the grille plate 2 is provided with the pool body 1. The side wall of the pool body 1 is provided with a water inlet 5. Sewage enters the pool body 1 from the water inlet 5. An inspection hole cover 3 is arranged on the side of the grille plate 2 above the pool body 1 facing the water inlet 5. The top of the grille plate 2 is fixedly connected with a driving device 6. A rain shield 9 is arranged outside the driving device 6. The rain shield 9 is fixedly connected to the outer wall of the grille plate 2. The rain shield 9 is used to block rainwater and prevent rainwater from eroding the driving device 6. A transmission sprocket set 12 is installed at the top of the outer side wall of the grille plate 2. The upper end of the transmission sprocket set 12 is connected to the output end of the driving device 6. The driving device 6 is used to drive the transmission sprocket set 12 to operate. A sprocket guard 11 is arranged outside the transmission sprocket set 12. The sprocket guard 11 is used to protect the transmission sprocket set 12 from being damaged. The center of the inner wall at the lower end of the transmission sprocket set 12 is fixedly connected with a main shaft 4. One end of the main shaft 4 far away from the transmission sprocket set 12 extends into the grille plate 2 and is rotatably connected to the inner side wall of the grille plate 2. Rubber water baffles 14 are respectively fixedly connected to the two inner side walls of the grille plate 2. A plurality of cleaning rake teeth 13 are rotatably connected to the inner walls of the two rubber water baffles 14. The plurality of cleaning rake teeth 13 are arranged in parallel at equal intervals. The cleaning rake teeth 13 are used to intercept impurities in the sewage. Guide wheels 15 are rotatably connected to both ends of the lowermost cleaning rake teeth 13. Transmission chain structures 16 are respectively arranged at both ends of the main shaft 4. The parts of the two transmission chain structures 16 far away from the main shaft 4 are respectively engaged with both ends of the plurality of cleaning rake teeth 13. When the main shaft 4 rotates, it drives the plurality of cleaning rake teeth 13 to rotate together through the transmission chain structure 16, and conveys the impurities in the sewage from bottom to top. A blowing assembly is arranged at the top of the grille plate 2. The blowing assembly includes an air pump air compressor 7, an air delivery pipe 8 and a blowing device 10. The bottom of the air pump air compressor 7 is fixedly connected to the outer wall of the grille plate 2. The outlet of the air pump air compressor 7 is fixedly communicated with one end of the air delivery pipe 8. The other end of the air delivery pipe 8 far away from the air pump air compressor 7 is fixedly communicated with the blowing device 10 outside the pool body 1. The blowing device 10 is fixedly connected to the outer wall of the grille plate 2 on the side facing the water inlet 5. The blowing device 10 and the uppermost cleaning rake teeth 13 are at the same horizontal height, and the jet direction of the jet orifice of the blowing device 10 faces the rear of the grille plate 2. The blowing device 10 is provided with a plurality of jet orifices. The setting direction of the plurality of jet orifices is the same as the setting direction of the cleaning rake teeth 13. Since the mass of the impurities adhering to the cleaning rake teeth 13 is small, the strong air flow pumped out by the air pump air compressor 7 can blow the impurities out of the grille plate 2. The air pump air compressor 7 pumps air into the air delivery pipe 8, and the air flow sprays from the plurality of jet orifices of the blowing device 10 onto the uppermost cleaning rake teeth 13, blowing off the impurities adhering to the cleaning rake teeth 13.

[0023] Working principle: Sewage enters the tank body 1 from the water inlet 5 and passes through the rotary grille with a pneumatic device that can blow off sundries. The driving device 6 is started, and the driving device 6 drives the transmission sprocket group 12 to drive the main shaft 4 to rotate together. Under the action of the transmission chain structure 16, a plurality of cleaning rake teeth 13 are driven to rotate together. The cleaning rake teeth 13 intercept impurities in the sewage and transport the impurities to the top of the tank body 1 until they reach the cleaning rake teeth 13 at the topmost part. The air pump air compressor 7 is started, and the air pump air compressor 7 pumps air into the blowing device 10 through the air pipe 8. The air flow sprays from the multiple nozzles of the blowing device 10 towards the cleaning rake teeth 13 at the topmost part, blowing the impurities adhered to the cleaning rake teeth 13 out of the grille plate 2 and into the hopper, completing the cleaning work.

[0024] It should be noted that: The electrical components appearing in this application document are all electrically connected to the external main controller and 220V mains power. And the main controller can be a conventional known device for controlling such as a servo motor, a contact sensor, a processor, an alarm module, and a driving module, etc. The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the existing technology for connection. Moreover, the machinery, parts, and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. No specific description will be made here.

[0025] The above-described embodiments are only a part of the embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person of ordinary skill in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present utility model.

Claims

1. A rotary grille with a pneumatic device capable of blowing off debris, characterized in that: The rotary grille with a pneumatic device capable of blowing off debris comprises: a grille plate (2), a pool body (1) is arranged on the outer side of the bottom end of the grille plate (2), a water inlet (5) is opened on the side wall of the pool body (1), two inner side walls of the grille plate (2) are respectively fixedly connected to rubber water retaining plates (14), the inner walls of the two rubber water retaining plates (14) are rotatably connected to a plurality of cleaning rake teeth (13), and a blowing assembly is arranged on the top of the grille plate (2), the blowing assembly comprises an air pump air compressor (7), an air delivery pipe (8) and a blowing The bottom of the air pump and air compressor (7) is fixedly connected to the outer wall of the grid plate (2), the outlet of the air pump and air compressor (7) is fixedly connected to one end of the air supply pipe (8), the end of the air supply pipe (8) away from the air pump and air compressor (7) is fixedly connected to the blowing device (10) outside the pool body (1), the blowing device (10) is fixedly connected to the outer wall of the grid plate (2) facing the water inlet (5), and the blowing device (10) and the topmost cleaning rake teeth (13) are located at the same horizontal height.

2. The rotary grille with a pneumatic device capable of blowing off debris as claimed in claim 1, characterized in that: The part of the grating plate (2) located above the pool body (1) is provided with an inspection hole cover (3) on the side facing the water inlet (5); the top of the grating plate (2) is fixedly connected to a driving device (6); a rain cover (9) is provided on the periphery of the driving device (6); the rain cover (9) is fixedly connected to the outer wall of the grating plate (2); a transmission sprocket group (12) is installed on the top of the outer wall of the grating plate (2); the upper end of the transmission sprocket group (12) is connected to the output end of the driving device (6); a sprocket guard (11) is provided on the periphery of the transmission sprocket group (12); a main shaft (4) is fixedly connected to the center of the inner wall of the lower end of the transmission sprocket group (12); one end of the main shaft (4) away from the transmission sprocket group (12) extends into the grating plate (2) and is rotatably connected to the inner wall of the grating plate (2); transmission chain structures (16) are respectively provided at both ends of the main shaft (4); the parts of the two transmission chain structures (16) away from the main shaft (4) are respectively meshed with the two ends of a plurality of cleaning rake teeth (13).

3. The revolving grille with a pneumatic device capable of blowing off debris as claimed in claim 1, characterized in that: The plurality of cleaning rake teeth (13) are evenly spaced and arranged in parallel.

4. The revolving grille with a pneumatic device capable of blowing off debris as claimed in claim 1, characterized in that: The bottommost one of the plurality of cleaning rake teeth (13) is rotatably connected to guide wheels (15) at both ends.

5. The revolving grille with a pneumatic device capable of blowing off debris as claimed in claim 1, characterized in that: The air blowing device (10) is provided with a plurality of air jets, and the arrangement direction of the plurality of air jets is consistent with the arrangement direction of the cleaning rake teeth (13).

6. The revolving grille with a pneumatic device capable of blowing off debris as claimed in claim 5, characterized in that: The air jetting direction of the air jet outlet of the air blowing device (10) is toward the rear of the grille plate (2).

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