A rotary drum mechanical grille

Abstract

The utility model discloses a kind of rotary drum type mechanical grating, including grating frame, the ring plate and end plate are respectively fixedly connected with grating frame two ends, the end plate middle part is perforated and is rotatably connected with conveying pipe by bearing, the top end of conveying pipe inside grating frame is open design, and two oblique material receiving plates are fixed in open top portion, the inside conveying pipe is rotatably connected with central shaft by bearing, and spiral blade is fixed on central shaft surface, and vertical plate is fixed on the upper surface of conveying pipe and located grating frame outside;In the utility model, grating frame, ring plate, end plate, conveying pipe, central shaft, spiral blade, first motor, material receiving plate and inner plate are set, spiral blade and grating frame are rotated simultaneously by first motor drive, garbage in grating frame is rotated upwards under the drive of inner plate, so that garbage falls into conveying pipe along material receiving plate, and garbage is discharged upwards along conveying pipe by rotating spiral blade, improve the discharge efficiency of garbage.

Description

Technical Field

[0001] This utility model relates to the field of mechanical bar grid technology, and in particular to a rotary drum type mechanical bar grid. Background Technology

[0002] A rotary drum mechanical bar screen is a solid-liquid separation device used in the pre-treatment stage of wastewater treatment. It primarily intercepts and removes suspended solids, floating matter, and particulate impurities from wastewater. Its core structure is a rotating cylindrical screen with numerous slits on its surface. Wastewater flows in from one end of the drum; through rotation, the water flows through the slits, while solid debris is trapped on the inner surface of the screen. As the drum rotates to the top, it is removed by scrapers or a flushing device to a collection trough. This equipment features a compact structure, small footprint, high degree of automation, and stable operation. It is suitable for small to medium flow wastewater treatment scenarios, such as municipal wastewater treatment plants and industrial wastewater treatment stations, effectively reducing the load on subsequent treatment processes. The drum is typically made of stainless steel, offering strong corrosion resistance. The slits can be customized to meet specific needs, and a self-cleaning system is included to prevent clogging.

[0003] However, existing rotary drum mechanical bar screens have the following drawbacks: Firstly, the interior of the bar screen frame, located outside the spiral blades, lacks a structure for catching or trapping waste. As the bar screen frame rotates, the efficiency of waste transported by the spiral blades is relatively low. Secondly, current cleaning systems rely solely on water flushing, a single cleaning method that cannot remove waste stuck in the bar screen frame holes. Therefore, further improvements are needed. To this end, we propose a rotary drum mechanical bar screen. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rotary drum mechanical grille.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotary drum mechanical bar screen, comprising a bar screen frame, with a ring plate and an end plate fixedly connected to both ends of the bar screen frame respectively, a conveying pipe rotatably connected through the middle of the end plate via a bearing, the top of the conveying pipe inside the bar screen frame being an open design, and two inclined receiving plates fixed to the top of the open design, a central shaft rotatably connected inside the conveying pipe via a bearing, and a spiral blade fixed to the surface of the central shaft, a vertical plate fixed to the upper surface of the conveying pipe and outside the bar screen frame, a rinsing assembly and a striking assembly installed at the top of the vertical plate, and a support frame fixed to the lower surface of the conveying pipe.

[0006] Furthermore, a first motor is fixed to the end of the conveying pipe away from the connecting frame, and the central shaft is fixedly connected to the output end of the first motor. A discharge port is opened on the bottom wall of the conveying pipe near the first motor.

[0007] Furthermore, a connecting frame is fixed at one end of the central shaft outside the grid frame, and both ends of the connecting frame are fixedly connected to the ring plate.

[0008] Furthermore, multiple inner plates are fixed at equal intervals on the inner sidewall of the grille frame.

[0009] Furthermore, the shower assembly includes a horizontal pipe fixed to the top of the vertical plate, and multiple nozzles are fixed at equal intervals on the lower surface of the horizontal pipe. The horizontal pipe is connected to a water pump.

[0010] Furthermore, the striking assembly includes a horizontal shaft that is rotatably connected to the vertical plate via a bearing. Multiple vertical tubes are fixed at equal intervals on the lower surface of the horizontal shaft, and a spring is fixed to the top wall of the inner wall of the vertical tube. A sliding rod is fixed to the bottom end of the spring. A second motor is fixed to the surface of the vertical plate, and the horizontal shaft is fixed to the output end of the second motor.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, this utility model is equipped with a grid frame, a ring plate, an end plate, a conveying pipe, a central shaft, a spiral blade, a first motor, a receiving plate, and an inner plate. The first motor drives the spiral blade and the grid frame to rotate simultaneously. The garbage entering the grid frame rotates upward under the drive of the inner plate, so that the garbage falls into the conveying pipe along the receiving plate. Then, the rotating spiral blade discharges the garbage upward along the conveying pipe, thereby improving the garbage discharge efficiency.

[0013] 2. When in use, this utility model is equipped with a conveying pipe, a vertical plate, a rinsing assembly, and a striking assembly. As the grid frame rotates, a small amount of garbage will get stuck on the grid frame. At this time, the garbage stuck on the grid frame is cleaned by the cooperation of the rinsing assembly and the striking assembly, which further prevents the grid frame from being blocked. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific 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.

[0015] Figure 1 This is an overall sectional view of the present invention;

[0016] Figure 2 This is a partial perspective view of the present invention;

[0017] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0018] The attached figures are labeled as follows:

[0019] 1. Grille frame; 2. Ring plate; 3. End plate; 4. Conveying pipe; 41. Discharge port; 5. Central shaft; 6. Spiral blade; 7. First motor; 8. Receiving plate; 9. Inner plate; 10. Connecting frame; 11. Vertical plate; 12. Spray assembly; 121. Horizontal pipe; 122. Nozzle; 13. Striking assembly; 131. Horizontal shaft; 132. Vertical pipe; 133. Spring; 134. Slide rod; 14. Second motor; 15. Support frame. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-3 As shown, a rotary drum mechanical bar screen is disclosed, comprising a bar screen frame 1. A ring plate 2 and an end plate 3 are fixedly connected to both ends of the bar screen frame 1, respectively. A conveying pipe 4 is rotatably connected to the middle of the end plate 3 via a bearing. The top of the conveying pipe 4 inside the bar screen frame 1 is open, and two inclined receiving plates 8 are fixed to the top of the open. A central shaft 5 is rotatably connected to the inside of the conveying pipe 4 via a bearing, and a spiral blade 6 is fixed to the surface of the central shaft 5. A vertical plate 11 is fixed to the upper surface of the conveying pipe 4 outside the bar screen frame 1. A spraying assembly 12 and a striking assembly 13 are installed at the top of the vertical plate 11. A support frame 15 is fixed to the lower surface of the conveying pipe 4.

[0022] The first motor 7 is fixed at the end of the conveying pipe 4 away from the connecting frame 10, and the central shaft 5 is fixedly connected to the output end of the first motor 7. A discharge port 41 is opened on the bottom wall of the conveying pipe 4 near the first motor 7.

[0023] The first motor 7 can drive the central shaft 5 and the spiral blade 6 to rotate. When garbage falls into the conveying pipe 4 from inside the grid frame 1, the spiral blade 6 can push the garbage along the conveying pipe 4, so that the garbage is discharged from the discharge port 41.

[0024] A connecting frame 10 is fixed at one end of the central shaft 5 outside the grid frame 1, and both ends of the connecting frame 10 are fixedly connected to the ring plate 2.

[0025] While the central shaft 5 drives the spiral blade 6 to rotate, it can also drive the connecting frame 10 to rotate, and the connecting frame 10 then drives the ring plate 2 and the grid frame 1 to rotate.

[0026] Multiple inner plates 9 are fixed at equal intervals on the inner sidewall of the grid frame 1.

[0027] When sewage and garbage enter the inside of the grid frame 1, the grid frame 1 will rotate under the drive of the first motor 7. The grid frame 1 filters the sewage, and the garbage stays inside the grid frame 1. As the grid frame 1 rotates, the inner plate 9 drives the garbage to rotate upward. When the garbage rotates to the top of the receiving plate 8, the garbage falls onto the surface of the receiving plate 8 and slides down the receiving plate 8 into the conveying pipe 4. The spiral blade 6 pushes the garbage to move.

[0028] The shower assembly 12 includes a horizontal pipe 121 fixed to the top of the vertical plate 11. Multiple nozzles 122 are fixed at equal intervals on the lower surface of the horizontal pipe 121. The horizontal pipe 121 is connected to a water pump.

[0029] In this embodiment, the water pump is connected to an external water source. After the water pump is started, water is sprayed out from the nozzle 122 along the horizontal pipe 121, thereby rinsing the top of the grid frame 1.

[0030] The striking assembly 13 includes a horizontal shaft 131 that is rotatably connected to the vertical plate 11 via a bearing. Multiple vertical tubes 132 are fixed at equal intervals on the lower surface of the horizontal shaft 131, and a spring 133 is fixed on the inner top wall of the vertical tube 132. A slide rod 134 is fixed at the bottom end of the spring 133. A second motor 14 is fixed on the surface of the vertical plate 11, and the horizontal shaft 131 is fixed at the output end of the second motor 14.

[0031] In this embodiment, the slide rod 134 is made of rubber. When the second motor 14 drives the horizontal shaft 131 to rotate, the horizontal shaft 131 drives the vertical tube 132 to rotate, and the slide rod 134 inside the vertical tube 132 is thrown out. When the slide rod 134 contacts the top of the grid frame 1, it produces an impact effect on the grid frame 1, thereby knocking away the garbage stuck in the gap of the grid frame 1. When the compressing force reaches a certain level, the slide rod 134 is squeezed back into the vertical tube 132.

[0032] Working principle: During operation, the bar screen is installed at an angle. The first motor 7 and the second motor 14 are activated. Wastewater enters the bar screen frame 1 and is filtered by it, while waste remains inside. As the bar screen frame 1 rotates, the waste is carried to the top and then falls onto the receiving plate 8, sliding down into the conveying pipe 4. The spiral blades 6 then move the waste, finally discharging it from the discharge port 41. During this process, water can be sprayed from the nozzle 122 to rinse the bar screen frame 1. Simultaneously, the second motor 14 drives the striking component 13 to rotate, striking the top of the bar screen frame 1 to prevent waste from getting stuck in the gaps.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drum-type mechanical grate comprising a grate frame (1), characterized in that: The grid frame (1) is respectively fixedly connected with a ring plate (2) and an end plate (3) at both ends, the end plate (3) is rotatably connected with a conveying pipe (4) penetrating the middle part and through a bearing, the conveying pipe (4) is designed as an open top at the top end inside the grid frame (1), and two inclined material receiving plates (8) are fixed on the open top, the conveying pipe (4) is rotatably connected with a central shaft (5) inside through a bearing, and the central shaft (5) is fixedly connected with a spiral blade (6) on the surface, the upper surface of the conveying pipe (4) and outside the grid frame (1) is fixedly connected with a vertical plate (11), the vertical plate (11) is provided with a flushing assembly (12) and a knocking assembly (13) at the top end, and the lower surface of the conveying pipe (4) is fixedly connected with a support frame (15).

2. A rotary drum mechanical grille according to claim 1, characterised in that: The conveying pipe (4) is fixedly connected with a first motor (7) at one end away from the connecting frame (10), and the central shaft (5) is fixedly connected with the output end of the first motor (7), and the bottom wall of the conveying pipe (4) is provided with a discharge port (41) close to the first motor (7).

3. A rotary drum mechanical grille according to claim 1, characterised in that: The bottom of the central shaft (5) is fixedly connected with a connecting frame (10) at one end outside the grid frame (1), and the connecting frame (10) is fixedly connected with the ring plate (2) at both ends.

4. A rotary drum mechanical grille according to claim 1, characterised in that: The inner side wall of the grid frame (1) is fixedly connected with a plurality of inner plates (9) at equal distances.

5. A rotary drum mechanical grill according to claim 1, characterized in that: The flushing assembly (12) comprises a horizontal pipe (121) fixed to the top end of the vertical plate (11), a plurality of nozzles (122) are fixedly connected to the lower surface of the horizontal pipe (121) at equal distances, and the horizontal pipe (121) is connected with a water pump.

6. A rotary drum mechanical grill according to claim 1, characterized in that: The knocking assembly (13) comprises a horizontal shaft (131) rotatably connected with the vertical plate (11) through a bearing, a plurality of vertical pipes (132) are fixedly connected to the lower surface of the horizontal shaft (131) at equal distances, springs (133) are fixedly connected to the inner top wall of the vertical pipes (132), sliding rods (134) are fixedly connected to the bottom ends of the springs (133), a second motor (14) is fixedly connected to the surface of the vertical plate (11), and the output end of the second motor (14) is fixedly connected with the horizontal shaft (131).

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